make local port selection deterministic and detach from the control port to improve performance

.drone.yml

@@ -5,43 +5,28 @@ workspace:
 pipeline:
   fetch:
     image: golang
-    when:
-      repo: cwtch.im/cwtch
-      branch: master
-      event: [ push, pull_request ]
     commands:
-      - wget https://git.openprivacy.ca/openprivacy/buildfiles/raw/master/tor/tor
-      - wget https://git.openprivacy.ca/openprivacy/buildfiles/raw/master/tor/torrc
+      - wget https://git.openprivacy.ca/openprivacy/buildfiles/raw/master/bin/tor
+      - wget https://git.openprivacy.ca/openprivacy/buildfiles/raw/master/torrc
       - chmod a+x tor
-      - go get -u golang.org/x/lint/golint
-      - export GO111MODULE=on
-      - go mod vendor
+      - go list ./... | xargs go get
+      - go get -u github.com/golang/lint/golint
   quality:
     image: golang
-    when:
-      repo: cwtch.im/cwtch
-      branch: master
-      event: [ push, pull_request ]
     commands:
       - go list ./... | xargs go vet
       - go list ./... | xargs golint -set_exit_status
   units-tests:
     image: golang
-    when:
-      repo: cwtch.im/cwtch
-      branch: master
-      event: [ push, pull_request ]
     commands:
       - export PATH=$PATH:/go/src/cwtch.im/cwtch
       - sh testing/tests.sh
   integ-test:
     image: golang
-    when:
-      repo: cwtch.im/cwtch
-      branch: master
-      event: [ push, pull_request ]
     commands:
-      - go test -race -v cwtch.im/cwtch/testing/
+      - ./tor -f ./torrc
+      - sleep 15
+      - go test -v cwtch.im/cwtch/testing
   notify-email:
       image: drillster/drone-email
       host: build.openprivacy.ca
@@ -49,15 +34,10 @@ pipeline:
       skip_verify: true
       from: drone@openprivacy.ca
       when:
-        repo: cwtch.im/cwtch
-        branch: master
-        event: [ push, pull_request ]
-        status: [ failure ]
+        status: [ success, changed, failure ]
   notify-gogs:
     image: openpriv/drone-gogs
     when:
-      repo: cwtch.im/cwtch
-      branch: master
       event: pull_request
       status: [ success, changed, failure ]
     secrets: [gogs_account_token]

.gitignore

@@ -3,12 +3,9 @@
 *private_key*
 *.messages
 *.test
+*/*test_*
+*/*_test*
 *.json
 */messages/*
 server/app/messages
 .reviewboardrc
-/vendor/
-/testing/tor/
-/storage/*/testing/
-/storage/testing/
-/testing/storage/

.gitlab-ci.yml

@@ -1,60 +0,0 @@
-image: golang:latest
-
-#before_script:
-
-stages:
-    - test
-    - docker-push
-    - deploy-staging
-
-test-server:
-    stage: test
-    script:
-        - mkdir /go/src/cwtch.im
-        - ln -s /builds/${CI_PROJECT_NAMESPACE}/cwtch /go/src/cwtch.im/cwtch
-        - cd /go/src/cwtch.im/cwtch/server/app/
-        - go get 
-        - go tool vet -composites=false -shadow=true *.go
-        - go test
-
-test-client:
-    stage: test
-    script:
-        - mkdir /go/src/cwtch.im
-        - ln -s /builds/${CI_PROJECT_NAMESPACE}/cwtch /go/src/cwtch.im/cwtch
-        - cd /go/src/cwtch.im/cwtch/app/cli/
-        - go get 
-        - go tool vet -composites=false -shadow=true *.go
-        - go test
-    # We don't really care about the client here but it's useful to know what's
-    # happening on t'other side of the coin
-    allow_failure: true
-
-
-gitlab-registry:
-    stage: docker-push
-    image: docker:latest
-    services:
-      - docker:dind
-    tags:
-    script:
-      - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN  ${CI_REGISTRY}
-      - docker build -t ${CI_REGISTRY_IMAGE}:latest -t ${CI_REGISTRY_IMAGE}:${CI_COMMIT_SHA:0:8} .
-      - docker push ${CI_REGISTRY_IMAGE}:latest
-      - docker push ${CI_REGISTRY_IMAGE}:${CI_COMMIT_SHA:0:8}
-    dependencies:
-      - test-server
-
-docker-hub:
-    stage: docker-push
-    image: docker:latest
-    services:
-      - docker:dind
-    tags:
-    script:
-      - docker login -u ${DOCKER_HUB_ID} -p ${DOCKER_HUB_PASSWORD} registry.hub.docker.com
-      - docker build -t registry.hub.docker.com/${DOCKER_HUB_ID}/cwtch:latest -t registry.hub.docker.com/${DOCKER_HUB_ID}/cwtch:${CI_COMMIT_SHA:0:8} .
-      - docker push registry.hub.docker.com/${DOCKER_HUB_ID}/cwtch:latest 
-      - docker push registry.hub.docker.com/${DOCKER_HUB_ID}/cwtch:${CI_COMMIT_SHA:0:8}
-    dependencies:
-      - test-server

Dockerfile

@@ -1,78 +0,0 @@
-FROM golang as server-build-stage
-ENV CGO_ENABLED=0 GOOS=linux
-
-WORKDIR /go/src/cwtch.im/cwtch
-COPY . .
-
-RUN go get -d -v ./...
-#RUN go install -v ./...
-WORKDIR /go/src/cwtch.im/cwtch/server/app/
-RUN go build -ldflags "-extldflags '-static'"
-
-
-
-#----------------------------------------------
-FROM alpine:latest as tor-build-stage
-
-# Install prerequisites
-RUN apk --no-cache add --update \
-        gnupg \
-        build-base \
-        libevent \
-        libevent-dev \
-        libressl \
-        libressl-dev \
-        xz-libs \
-        xz-dev \
-        zlib \
-        zlib-dev \
-        zstd \
-        zstd-dev \
-      && wget -q https://www.torproject.org/dist/tor-0.3.5.3-alpha.tar.gz \
-      && tar xf tor-0.3.5.3-alpha.tar.gz \
-      && cd tor-0.3.5.3-alpha \
-      && ./configure \
-      && make install \
-      && ls -R /usr/local/
-
-FROM alpine:latest
-MAINTAINER Ablative Hosting <support@ablative.hosting>
-
-#BSD habits die hard
-ENV TOR_USER=_tor
-
-# Installing dependencies of Tor and pwgen
-RUN apk --no-cache add --update \
-      libevent \
-      libressl \
-      xz-libs \
-      zlib \
-      zstd \
-      zstd-dev \
-      pwgen
-
-# Copy Tor
-COPY --from=tor-build-stage /usr/local/ /usr/local/
-
-# Create an unprivileged tor user
-RUN addgroup -S $TOR_USER && adduser -G $TOR_USER -S $TOR_USER && adduser -G _tor -S cwtchd && mkdir /run/tor
-
-# Copy Tor configuration file
-COPY ./server/docker/torrc /etc/tor/torrc
-
-# Copy docker-entrypoint
-COPY ./server/docker/docker-entrypoint /usr/local/bin/
-
-# Copy across cwtch
-COPY  --from=server-build-stage /go/src/cwtch.im/cwtch/server/app/app /usr/local/bin/cwtch_server
-
-# Persist data
-VOLUME /etc/tor /var/lib/tor /etc/cwtch
-
-ENTRYPOINT ["docker-entrypoint"]
-
-#cwtchd is in the _tor group so can access the socket but that's it
-#USER cwtchd
-
-#Launches the cwtchd daemon
-CMD ["/usr/local/bin/cwtch_server"]

README.md

@@ -19,7 +19,7 @@ We seek to protect the following communication contexts:
 Beyond individual conversations, we also seek to defend against context correlation attacks, whereby multiple conversations are analyzed to derive higher level information:
 
 * **Relationships** - Discovering social relationships between parties by analyzing the frequency and length of their communications over a period of time. (Carol and Eve call each other every single day for multiple hours at a time.)
-* **Cliques** - Discovering social relationships between multiple parties by deriving casual communication chains from their communication metadata (e.g. everytime Alice talks to Bob she talks to Carol almost immediately after.)
+* **Cliques** - Discovering social relationships between multiple parties by deriving casual communication chains from their communication metadata (e.g. everytime Alice talks to Bob she talks to Carol almost immediately after.) 
 * **Pattern of Life** - Discovering which communications are cyclical and predictable. (e.g. Alice calls Eve every Monday evening for around an hour.)
 
 
@@ -27,32 +27,4 @@ More Information: [https://cwtch.im](https://cwtch.im)
 
 Development and Contributing information in [CONTRIBUTING.md](https://git.openprivacy.ca/cwtch.im/cwtch/src/master/CONTRIBUTING.md)
 
-## Running Cwtch
-### Server
-#### Docker
-This repository contains a `Dockerfile` allowing you to build and run the server as a [docker](https://www.docker.com/) container.
-
-To get started issue `docker build -t openpriv/cwtch-server:latest .`, this will create 2 temporary docker containers, one to build the Tor daemon and one to build Cwtch. The compiled binaries will then be bundled into a new image and tagged as `openpriv/cwtch-server:latest`.
-
-To run Cwtch in the foreground execute `docker run openpriv/cwtch-server:latest`, you will see a small amount of output from Tor and then Cwtch will output your server address. When you `Ctrl + C` the container will terminate. To run Cwtch in the background execute `docker run --name my-cwtch-server -d openpriv/cwtch-server:latest`. To get your Cwtch server address issue `docker logs my-cwtch-server`.
-
-The image creates 3 volumes, for /etc/cwtch, /etc/tor, /var/lib/tor
-
-##### Upgrading
-
-To upgrade with continuity
-
-```
-# Stop current container/service
-docker stop my-cwtch-server
-
-docker pull openpriv/cwtch-server
-
-# Create a new container and copy the volumes (cwtch/onion keys, message store)
-docker create --name my-cwtch-server-2 --volumes-from my-cwtch-server openpriv/cwtch-server:latest
-
-# Resume service with the new container
-docker start my-cwtch-server-2
-```
-
 ![](https://git.openprivacy.ca/avatars/5?s=140)

app/app.go

@@ -1,294 +1,182 @@
 package app
 
 import (
-	"cwtch.im/cwtch/app/plugins"
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/model"
+	"crypto/rand"
+	"cwtch.im/cwtch/connectivity/tor"
 	"cwtch.im/cwtch/peer"
-	"cwtch.im/cwtch/protocol/connections"
-	"cwtch.im/cwtch/storage"
+	"encoding/hex"
 	"fmt"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"git.openprivacy.ca/openprivacy/connectivity"
-	"git.openprivacy.ca/openprivacy/log"
 	"io/ioutil"
+	"log"
 	"os"
 	"path"
-	"strconv"
+	"path/filepath"
 	"sync"
 )
 
-// AttributeTag is a const name for a peer attribute that can be set at creation time, for example for versioning info
-const AttributeTag = "tag"
-
-type applicationCore struct {
-	eventBuses map[string]event.Manager
-
-	directory string
-	coremutex sync.Mutex
-}
-
 type application struct {
-	applicationCore
-	appletPeers
-	appletACN
-	appletPlugins
-	storage  map[string]storage.ProfileStore
-	engines  map[string]connections.Engine
-	appBus   event.Manager
-	appmutex sync.Mutex
+	peers        map[string]peer.CwtchPeer
+	torManager   *tor.Manager
+	directory    string
+	mutex        sync.Mutex
+	primaryonion string
 }
 
 // Application is a full cwtch peer application. It allows management, usage and storage of multiple peers
 type Application interface {
-	LoadProfiles(password string)
-	CreatePeer(name string, password string)
-	CreateTaggedPeer(name string, password string, tag string)
-	DeletePeer(onion string)
-	AddPeerPlugin(onion string, pluginID plugins.PluginID)
-	ChangePeerPassword(onion, oldpass, newpass string)
-	LaunchPeers()
-
-	GetPrimaryBus() event.Manager
-	GetEventBus(onion string) event.Manager
-	QueryACNStatus()
-	QueryACNVersion()
-
-	ShutdownPeer(string)
-	Shutdown()
+	LoadProfiles(password string) error
+	CreatePeer(name string, password string) (peer.CwtchPeer, error)
 
+	PrimaryIdentity() peer.CwtchPeer
 	GetPeer(onion string) peer.CwtchPeer
 	ListPeers() map[string]string
-}
 
-// LoadProfileFn is the function signature for a function in an app that loads a profile
-type LoadProfileFn func(profile *model.Profile, store storage.ProfileStore)
+	GetTorStatus() (map[string]string, error)
 
-func newAppCore(appDirectory string) *applicationCore {
-	appCore := &applicationCore{eventBuses: make(map[string]event.Manager), directory: appDirectory}
-	os.MkdirAll(path.Join(appCore.directory, "profiles"), 0700)
-	return appCore
+	Shutdown()
 }
 
 // NewApp creates a new app with some environment awareness and initializes a Tor Manager
-func NewApp(acn connectivity.ACN, appDirectory string) Application {
-	log.Debugf("NewApp(%v)\n", appDirectory)
-	app := &application{storage: make(map[string]storage.ProfileStore), engines: make(map[string]connections.Engine), applicationCore: *newAppCore(appDirectory), appBus: event.NewEventManager()}
-	app.appletPeers.init()
+func NewApp(appDirectory string, torPath string) (Application, error) {
+	log.Printf("NewApp(%v, %v)\n", appDirectory, torPath)
+	app := &application{peers: make(map[string]peer.CwtchPeer), directory: appDirectory}
+	os.MkdirAll(path.Join(appDirectory, "tor"), 0700)
+	os.Mkdir(path.Join(app.directory, "profiles"), 0700)
 
-	app.appletACN.init(acn, app.getACNStatusHandler())
-	return app
+	err := app.startTor(torPath)
+	if err != nil {
+		return nil, err
+	}
+	return app, nil
 }
 
-// CreatePeer creates a new Peer with a given name and core required accessories (eventbus)
-func (ac *applicationCore) CreatePeer(name string) (*model.Profile, error) {
-	log.Debugf("CreatePeer(%v)\n", name)
+func generateRandomFilename() string {
+	randBytes := make([]byte, 16)
+	rand.Read(randBytes)
+	return filepath.Join(hex.EncodeToString(randBytes))
+}
 
-	profile := storage.NewProfile(name)
+// NewProfile creates a new cwtchPeer with a given name.
+func (app *application) CreatePeer(name string, password string) (peer.CwtchPeer, error) {
+	log.Printf("CreatePeer(%v)\n", name)
 
-	ac.coremutex.Lock()
-	defer ac.coremutex.Unlock()
+	randomFileName := generateRandomFilename()
+	p, err := peer.NewCwtchPeer(name, password, path.Join(app.directory, "profiles", randomFileName))
+	if err != nil {
+		return nil, err
+	}
+	err = p.Save()
+	if err != nil {
+		p.Shutdown() //attempt
+		return nil, fmt.Errorf("Error attempting to save new profile: %v", err)
+	}
+	app.startPeer(p)
 
-	_, exists := ac.eventBuses[profile.Onion]
+	_, exists := app.peers[p.GetProfile().Onion]
 	if exists {
-		return nil, fmt.Errorf("error: profile for onion %v already exists", profile.Onion)
+		p.Shutdown()
+		return nil, fmt.Errorf("Error: profile for onion %v already exists", p.GetProfile().Onion)
 	}
+	app.mutex.Lock()
+	app.peers[p.GetProfile().Onion] = p
+	app.mutex.Unlock()
 
-	eventBus := event.NewEventManager()
-	ac.eventBuses[profile.Onion] = eventBus
-
-	return profile, nil
+	return p, nil
 }
 
-func (ac *applicationCore) DeletePeer(onion string) {
-	ac.coremutex.Lock()
-	defer ac.coremutex.Unlock()
-
-	ac.eventBuses[onion].Shutdown()
-	delete(ac.eventBuses, onion)
-}
-
-func (app *application) CreateTaggedPeer(name string, password string, tag string) {
-	profile, err := app.applicationCore.CreatePeer(name)
+func (app *application) LoadProfiles(password string) error {
+	files, err := ioutil.ReadDir(path.Join(app.directory, "profiles"))
 	if err != nil {
-		app.appBus.Publish(event.NewEventList(event.PeerError, event.Error, err.Error()))
-		return
-	}
-
-	profileStore := storage.CreateProfileWriterStore(app.eventBuses[profile.Onion], path.Join(app.directory, "profiles", profile.LocalID), password, profile)
-	app.storage[profile.Onion] = profileStore
-
-	pc := app.storage[profile.Onion].GetProfileCopy(true)
-	p := peer.FromProfile(pc)
-	p.Init(app.eventBuses[profile.Onion])
-
-	peerAuthorizations := profile.ContactsAuthorizations()
-	// TODO: Would be nice if ProtocolEngine did not need to explicitly be given the Private Key.
-	identity := primitives.InitializeIdentity(profile.Name, &profile.Ed25519PrivateKey, &profile.Ed25519PublicKey)
-	engine := connections.NewProtocolEngine(identity, profile.Ed25519PrivateKey, app.acn, app.eventBuses[profile.Onion], peerAuthorizations)
-
-	app.peers[profile.Onion] = p
-	app.engines[profile.Onion] = engine
-
-	if tag != "" {
-		p.SetAttribute(AttributeTag, tag)
-	}
-
-	app.appBus.Publish(event.NewEvent(event.NewPeer, map[event.Field]string{event.Identity: profile.Onion, event.Created: event.True}))
-}
-
-// CreatePeer creates a new Peer with the given name and required accessories (eventbus, storage, protocol engine)
-func (app *application) CreatePeer(name string, password string) {
-	app.CreateTaggedPeer(name, password, "")
-}
-
-func (app *application) DeletePeer(onion string) {
-	log.Infof("DeletePeer called on %v\n", onion)
-	app.appmutex.Lock()
-	defer app.appmutex.Unlock()
-
-	app.appletPlugins.ShutdownPeer(onion)
-	app.plugins.Delete(onion)
-
-	app.peers[onion].Shutdown()
-	delete(app.peers, onion)
-
-	app.engines[onion].Shutdown()
-	delete(app.engines, onion)
-
-	app.storage[onion].Shutdown()
-	app.storage[onion].Delete()
-	delete(app.storage, onion)
-
-	app.eventBuses[onion].Publish(event.NewEventList(event.ShutdownPeer, event.Identity, onion))
-
-	app.applicationCore.DeletePeer(onion)
-	log.Debugf("Delete peer for %v Done\n", onion)
-}
-
-func (app *application) ChangePeerPassword(onion, oldpass, newpass string) {
-	app.eventBuses[onion].Publish(event.NewEventList(event.ChangePassword, event.Password, oldpass, event.NewPassword, newpass))
-}
-
-func (app *application) AddPeerPlugin(onion string, pluginID plugins.PluginID) {
-	app.AddPlugin(onion, pluginID, app.eventBuses[onion], app.acn)
-}
-
-// LoadProfiles takes a password and attempts to load any profiles it can from storage with it and create Peers for them
-func (ac *applicationCore) LoadProfiles(password string, timeline bool, loadProfileFn LoadProfileFn) error {
-	files, err := ioutil.ReadDir(path.Join(ac.directory, "profiles"))
-	if err != nil {
-		return fmt.Errorf("error: cannot read profiles directory: %v", err)
+		return fmt.Errorf("Error: cannot read profiles directory: %v", err)
 	}
 
 	for _, file := range files {
-		eventBus := event.NewEventManager()
-		profileStore, err := storage.LoadProfileWriterStore(eventBus, path.Join(ac.directory, "profiles", file.Name()), password)
+		p, err := peer.LoadCwtchPeer(path.Join(app.directory, "profiles", file.Name()), password)
 		if err != nil {
 			continue
 		}
-
-		profile := profileStore.GetProfileCopy(timeline)
-
-		_, exists := ac.eventBuses[profile.Onion]
+		_, exists := app.peers[p.GetProfile().Onion]
 		if exists {
-			profileStore.Shutdown()
-			eventBus.Shutdown()
-			log.Errorf("profile for onion %v already exists", profile.Onion)
+			p.Shutdown()
+			log.Printf("Error: profile for onion %v already exists", p.GetProfile().Onion)
 			continue
 		}
-
-		ac.coremutex.Lock()
-		ac.eventBuses[profile.Onion] = eventBus
-		ac.coremutex.Unlock()
-
-		loadProfileFn(profile, profileStore)
-	}
-	return nil
-}
-
-// LoadProfiles takes a password and attempts to load any profiles it can from storage with it and create Peers for them
-func (app *application) LoadProfiles(password string) {
-	count := 0
-	app.applicationCore.LoadProfiles(password, true, func(profile *model.Profile, profileStore storage.ProfileStore) {
-		peer := peer.FromProfile(profile)
-		peer.Init(app.eventBuses[profile.Onion])
-
-		peerAuthorizations := profile.ContactsAuthorizations()
-		identity := primitives.InitializeIdentity(profile.Name, &profile.Ed25519PrivateKey, &profile.Ed25519PublicKey)
-		engine := connections.NewProtocolEngine(identity, profile.Ed25519PrivateKey, app.acn, app.eventBuses[profile.Onion], peerAuthorizations)
-		app.appmutex.Lock()
-		app.peers[profile.Onion] = peer
-		app.storage[profile.Onion] = profileStore
-		app.engines[profile.Onion] = engine
-		app.appmutex.Unlock()
-		app.appBus.Publish(event.NewEvent(event.NewPeer, map[event.Field]string{event.Identity: profile.Onion, event.Created: event.False}))
-		count++
-	})
-	if count == 0 {
-		message := event.NewEventList(event.AppError, event.Error, event.AppErrLoaded0)
-		app.appBus.Publish(message)
-	}
-}
-
-// GetPrimaryBus returns the bus the Application uses for events that aren't peer specific
-func (app *application) GetPrimaryBus() event.Manager {
-	return app.appBus
-}
-
-// GetEventBus returns a cwtchPeer's event bus
-func (ac *applicationCore) GetEventBus(onion string) event.Manager {
-	if manager, ok := ac.eventBuses[onion]; ok {
-		return manager
-	}
-	return nil
-}
-
-func (app *application) getACNStatusHandler() func(int, string) {
-	return func(progress int, status string) {
-		progStr := strconv.Itoa(progress)
-		app.peerLock.Lock()
-		app.appBus.Publish(event.NewEventList(event.ACNStatus, event.Progress, progStr, event.Status, status))
-		for _, bus := range app.eventBuses {
-			bus.Publish(event.NewEventList(event.ACNStatus, event.Progress, progStr, event.Status, status))
+		app.startPeer(p)
+		app.mutex.Lock()
+		app.peers[p.GetProfile().Onion] = p
+		if app.primaryonion == "" {
+			app.primaryonion = p.GetProfile().Onion
 		}
-		app.peerLock.Unlock()
+		app.mutex.Unlock()
 	}
+	return nil
 }
 
-func (app *application) QueryACNStatus() {
-	prog, status := app.acn.GetBootstrapStatus()
-	app.getACNStatusHandler()(prog, status)
+// startTor will create a local torrc if needed
+func (app *application) startTor(torPath string) error {
+	// Creating a local cwtch tor server config for the user
+	// creating $app.directory/torrc file
+	// SOCKSPort  socksPort
+	// ControlPort controlPort
+	torrc := path.Join(app.directory, "tor", "torrc")
+	if _, err := os.Stat(torrc); os.IsNotExist(err) {
+		log.Printf("writing torrc to: %v\n", torrc)
+		file, err := os.Create(torrc)
+		if err != nil {
+			return err
+		}
+		fmt.Fprintf(file, "SOCKSPort %d\nControlPort %d\nCookieAuthentication 0\nSafeSocks 1\n", 9050, 9051)
+		file.Close()
+	}
+
+	tm, err := tor.NewTorManager(9050, 9051, torPath, torrc)
+	if err != nil {
+		return err
+	}
+	app.torManager = tm
+	return nil
 }
 
-func (app *application) QueryACNVersion() {
-	version := app.acn.GetVersion()
-	app.appBus.Publish(event.NewEventList(event.ACNVersion, event.Data, version))
+func (app *application) startPeer(peer peer.CwtchPeer) {
+	go func() {
+		e := peer.Listen()
+		if e != nil {
+			log.Fatalf("ERROR: peer %v has crashed with: %v\n", peer.GetProfile().Onion, e)
+		}
+	}()
 }
 
-// ShutdownPeer shuts down a peer and removes it from the app's management
-func (app *application) ShutdownPeer(onion string) {
-	app.appmutex.Lock()
-	defer app.appmutex.Unlock()
-	app.eventBuses[onion].Shutdown()
-	delete(app.eventBuses, onion)
-	app.peers[onion].Shutdown()
-	delete(app.peers, onion)
-	app.engines[onion].Shutdown()
-	delete(app.engines, onion)
-	app.storage[onion].Shutdown()
-	delete(app.storage, onion)
-	app.appletPlugins.Shutdown()
+// ListPeers returns a map of onions to their profile's Name
+func (app *application) ListPeers() map[string]string {
+	keys := map[string]string{}
+	for k, p := range app.peers {
+		keys[k] = p.GetProfile().Name
+	}
+	return keys
+}
+
+// PrimaryIdentity returns a Peer for a given onion address
+func (app *application) PrimaryIdentity() peer.CwtchPeer {
+	return app.peers[app.primaryonion]
+}
+
+// GetPeer returns a Peer for a given onion address
+func (app *application) GetPeer(onion string) peer.CwtchPeer {
+	if peer, ok := app.peers[onion]; ok {
+		return peer
+	}
+	return nil
+}
+
+// GetTorStatus returns tor control port bootstrap-phase status info in a map
+func (app *application) GetTorStatus() (map[string]string, error) {
+	return app.torManager.GetStatus()
 }
 
 // Shutdown shutsdown all peers of an app and then the tormanager
 func (app *application) Shutdown() {
-	for id, peer := range app.peers {
+	for _, peer := range app.peers {
 		peer.Shutdown()
-		app.appletPlugins.ShutdownPeer(id)
-		app.engines[id].Shutdown()
-		app.storage[id].Shutdown()
-		app.eventBuses[id].Shutdown()
 	}
-	app.appBus.Shutdown()
+	app.torManager.Shutdown()
 }

app/appBridge.go

@@ -1,39 +0,0 @@
-package app
-
-import "cwtch.im/cwtch/event"
-import "git.openprivacy.ca/openprivacy/log"
-
-const (
-	// DestApp should be used as a destination for IPC messages that are for the application itself an not a peer
-	DestApp = "app"
-)
-
-type applicationBridge struct {
-	applicationCore
-
-	bridge event.IPCBridge
-	handle func(*event.Event)
-}
-
-func (ab *applicationBridge) listen() {
-	log.Infoln("ab.listen()")
-	for {
-		ipcMessage, ok := ab.bridge.Read()
-		log.Debugf("listen() got %v for %v\n", ipcMessage.Message.EventType, ipcMessage.Dest)
-		if !ok {
-			log.Debugln("exiting appBridge.listen()")
-			return
-		}
-
-		if ipcMessage.Dest == DestApp {
-			ab.handle(&ipcMessage.Message)
-		} else {
-			if eventBus, exists := ab.eventBuses[ipcMessage.Dest]; exists {
-				eventBus.PublishLocal(ipcMessage.Message)
-			}
-		}
-	}
-}
-
-func (ab *applicationBridge) Shutdown() {
-}

app/appClient.go

@@ -1,176 +0,0 @@
-package app
-
-import (
-	"cwtch.im/cwtch/app/plugins"
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/peer"
-	"cwtch.im/cwtch/storage"
-	"fmt"
-	"git.openprivacy.ca/openprivacy/log"
-	"path"
-	"strconv"
-	"sync"
-)
-
-type applicationClient struct {
-	applicationBridge
-	appletPeers
-
-	appBus  event.Manager
-	acmutex sync.Mutex
-}
-
-// NewAppClient returns an Application that acts as a client to a AppService, connected by the IPCBridge supplied
-func NewAppClient(appDirectory string, bridge event.IPCBridge) Application {
-	appClient := &applicationClient{appletPeers: appletPeers{peers: make(map[string]peer.CwtchPeer)}, applicationBridge: applicationBridge{applicationCore: *newAppCore(appDirectory), bridge: bridge}, appBus: event.NewEventManager()}
-	appClient.handle = appClient.handleEvent
-
-	go appClient.listen()
-
-	appClient.bridge.Write(&event.IPCMessage{Dest: DestApp, Message: event.NewEventList(event.ReloadClient)})
-
-	log.Infoln("Created new App Client")
-	return appClient
-}
-
-// GetPrimaryBus returns the bus the Application uses for events that aren't peer specific
-func (ac *applicationClient) GetPrimaryBus() event.Manager {
-	return ac.appBus
-}
-
-func (ac *applicationClient) handleEvent(ev *event.Event) {
-	switch ev.EventType {
-	case event.NewPeer:
-		localID := ev.Data[event.Identity]
-		key := ev.Data[event.Key]
-		salt := ev.Data[event.Salt]
-		reload := ev.Data[event.Status] == event.StorageRunning
-		created := ev.Data[event.Created]
-		ac.newPeer(localID, key, salt, reload, created)
-	case event.DeletePeer:
-		onion := ev.Data[event.Identity]
-		ac.handleDeletedPeer(onion)
-	case event.PeerError:
-		ac.appBus.Publish(*ev)
-	case event.AppError:
-		ac.appBus.Publish(*ev)
-	case event.ACNStatus:
-		ac.appBus.Publish(*ev)
-	case event.ACNVersion:
-		ac.appBus.Publish(*ev)
-	case event.ReloadDone:
-		ac.appBus.Publish(*ev)
-	}
-}
-
-func (ac *applicationClient) newPeer(localID, key, salt string, reload bool, created string) {
-	var keyBytes [32]byte
-	var saltBytes [128]byte
-	copy(keyBytes[:], key)
-	copy(saltBytes[:], salt)
-	profile, err := storage.ReadProfile(path.Join(ac.directory, "profiles", localID), keyBytes, saltBytes)
-	if err != nil {
-		log.Errorf("Could not read profile for NewPeer event: %v\n", err)
-		ac.appBus.Publish(event.NewEventList(event.PeerError, event.Error, fmt.Sprintf("Could not read profile for NewPeer event: %v\n", err)))
-		return
-	}
-
-	_, exists := ac.peers[profile.Onion]
-	if exists {
-		log.Errorf("profile for onion %v already exists", profile.Onion)
-		ac.appBus.Publish(event.NewEventList(event.PeerError, event.Error, fmt.Sprintf("profile for onion %v already exists", profile.Onion)))
-		return
-	}
-
-	eventBus := event.NewIPCEventManager(ac.bridge, profile.Onion)
-	peer := peer.FromProfile(profile)
-	peer.Init(eventBus)
-
-	ac.peerLock.Lock()
-	defer ac.peerLock.Unlock()
-	ac.peers[profile.Onion] = peer
-	ac.eventBuses[profile.Onion] = eventBus
-	npEvent := event.NewEvent(event.NewPeer, map[event.Field]string{event.Identity: profile.Onion, event.Created: created})
-	if reload {
-		npEvent.Data[event.Status] = event.StorageRunning
-	}
-	ac.appBus.Publish(npEvent)
-
-	if reload {
-		ac.bridge.Write(&event.IPCMessage{Dest: DestApp, Message: event.NewEventList(event.ReloadPeer, event.Identity, profile.Onion)})
-	}
-}
-
-// CreatePeer messages the service to create a new Peer with the given name
-func (ac *applicationClient) CreatePeer(name string, password string) {
-	ac.CreateTaggedPeer(name, password, "")
-}
-
-func (ac *applicationClient) CreateTaggedPeer(name, password, tag string) {
-	log.Infof("appClient CreatePeer %v\n", name)
-	message := event.IPCMessage{Dest: DestApp, Message: event.NewEvent(event.CreatePeer, map[event.Field]string{event.ProfileName: name, event.Password: password, event.Data: tag})}
-	ac.bridge.Write(&message)
-}
-
-// DeletePeer messages tehe service to delete a peer
-func (ac *applicationClient) DeletePeer(onion string) {
-	message := event.IPCMessage{Dest: DestApp, Message: event.NewEvent(event.DeletePeer, map[event.Field]string{event.Identity: onion})}
-	ac.bridge.Write(&message)
-}
-
-func (ac *applicationClient) ChangePeerPassword(onion, oldpass, newpass string) {
-	message := event.IPCMessage{Dest: onion, Message: event.NewEventList(event.ChangePassword, event.Password, oldpass, event.NewPassword, newpass)}
-	ac.bridge.Write(&message)
-}
-
-func (ac *applicationClient) handleDeletedPeer(onion string) {
-	ac.acmutex.Lock()
-	defer ac.acmutex.Unlock()
-	ac.peers[onion].Shutdown()
-	delete(ac.peers, onion)
-	ac.eventBuses[onion].Publish(event.NewEventList(event.ShutdownPeer, event.Identity, onion))
-
-	ac.applicationCore.DeletePeer(onion)
-}
-
-func (ac *applicationClient) AddPeerPlugin(onion string, pluginID plugins.PluginID) {
-	message := event.IPCMessage{Dest: DestApp, Message: event.NewEvent(event.AddPeerPlugin, map[event.Field]string{event.Identity: onion, event.Data: strconv.Itoa(int(pluginID))})}
-	ac.bridge.Write(&message)
-}
-
-// LoadProfiles messages the service to load any profiles for the given password
-func (ac *applicationClient) LoadProfiles(password string) {
-	message := event.IPCMessage{Dest: DestApp, Message: event.NewEvent(event.LoadProfiles, map[event.Field]string{event.Password: password})}
-	ac.bridge.Write(&message)
-}
-
-func (ac *applicationClient) QueryACNStatus() {
-	message := event.IPCMessage{Dest: DestApp, Message: event.NewEvent(event.GetACNStatus, map[event.Field]string{})}
-	ac.bridge.Write(&message)
-}
-
-func (ac *applicationClient) QueryACNVersion() {
-	message := event.IPCMessage{Dest: DestApp, Message: event.NewEvent(event.GetACNVersion, map[event.Field]string{})}
-	ac.bridge.Write(&message)
-}
-
-// ShutdownPeer shuts down a peer and removes it from the app's management
-func (ac *applicationClient) ShutdownPeer(onion string) {
-	ac.acmutex.Lock()
-	defer ac.acmutex.Unlock()
-	ac.eventBuses[onion].Shutdown()
-	delete(ac.eventBuses, onion)
-	ac.peers[onion].Shutdown()
-	delete(ac.peers, onion)
-	message := event.IPCMessage{Dest: DestApp, Message: event.NewEvent(event.ShutdownPeer, map[event.Field]string{event.Identity: onion})}
-	ac.bridge.Write(&message)
-}
-
-// Shutdown shuts down the application client and all front end peer components
-func (ac *applicationClient) Shutdown() {
-	for id := range ac.peers {
-		ac.ShutdownPeer(id)
-	}
-	ac.applicationBridge.Shutdown()
-	ac.appBus.Shutdown()
-}

app/appService.go

@@ -1,201 +0,0 @@
-package app
-
-import (
-	"cwtch.im/cwtch/app/plugins"
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/model"
-	"cwtch.im/cwtch/protocol/connections"
-	"cwtch.im/cwtch/storage"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"git.openprivacy.ca/openprivacy/connectivity"
-	"git.openprivacy.ca/openprivacy/log"
-	"path"
-	"strconv"
-	"sync"
-)
-
-type applicationService struct {
-	applicationBridge
-	appletACN
-	appletPlugins
-
-	storage map[string]storage.ProfileStore
-	engines map[string]connections.Engine
-	asmutex sync.Mutex
-}
-
-// ApplicationService is the back end of an application that manages engines and writing storage and communicates to an ApplicationClient by an IPCBridge
-type ApplicationService interface {
-	Shutdown()
-}
-
-// NewAppService returns an ApplicationService that runs the backend of an app and communicates with a client by the supplied IPCBridge
-func NewAppService(acn connectivity.ACN, appDirectory string, bridge event.IPCBridge) ApplicationService {
-	appService := &applicationService{storage: make(map[string]storage.ProfileStore), engines: make(map[string]connections.Engine), applicationBridge: applicationBridge{applicationCore: *newAppCore(appDirectory), bridge: bridge}}
-
-	appService.appletACN.init(acn, appService.getACNStatusHandler())
-	appService.handle = appService.handleEvent
-
-	go appService.listen()
-
-	log.Infoln("Created new App Service")
-	return appService
-}
-
-func (as *applicationService) handleEvent(ev *event.Event) {
-	log.Infof("app Service handleEvent %v\n", ev.EventType)
-	switch ev.EventType {
-	case event.CreatePeer:
-		profileName := ev.Data[event.ProfileName]
-		password := ev.Data[event.Password]
-		tag := ev.Data[event.Data]
-		as.createPeer(profileName, password, tag)
-	case event.DeletePeer:
-		onion := ev.Data[event.Identity]
-		as.deletePeer(onion)
-
-		message := event.IPCMessage{Dest: DestApp, Message: *ev}
-		as.bridge.Write(&message)
-	case event.AddPeerPlugin:
-		onion := ev.Data[event.Identity]
-		pluginID, _ := strconv.Atoi(ev.Data[event.Data])
-		as.AddPlugin(onion, plugins.PluginID(pluginID), as.eventBuses[onion], as.acn)
-	case event.LoadProfiles:
-		password := ev.Data[event.Password]
-		as.loadProfiles(password)
-	case event.ReloadClient:
-		for _, storage := range as.storage {
-			peerMsg := *storage.GetNewPeerMessage()
-			peerMsg.Data[event.Status] = event.StorageRunning
-			peerMsg.Data[event.Created] = event.False
-			message := event.IPCMessage{Dest: DestApp, Message: peerMsg}
-			as.bridge.Write(&message)
-		}
-
-		message := event.IPCMessage{Dest: DestApp, Message: event.NewEventList(event.ReloadDone)}
-		as.bridge.Write(&message)
-	case event.ReloadPeer:
-		onion := ev.Data[event.Identity]
-		events := as.storage[onion].GetStatusMessages()
-
-		for _, ev := range events {
-			message := event.IPCMessage{Dest: onion, Message: *ev}
-			as.bridge.Write(&message)
-		}
-	case event.GetACNStatus:
-		prog, status := as.acn.GetBootstrapStatus()
-		as.getACNStatusHandler()(prog, status)
-	case event.GetACNVersion:
-		version := as.acn.GetVersion()
-		as.bridge.Write(&event.IPCMessage{Dest: DestApp, Message: event.NewEventList(event.ACNVersion, event.Data, version)})
-	case event.ShutdownPeer:
-		onion := ev.Data[event.Identity]
-		as.ShutdownPeer(onion)
-	}
-}
-
-func (as *applicationService) createPeer(name, password, tag string) {
-	log.Infof("app Service create peer %v %v\n", name, password)
-	profile, err := as.applicationCore.CreatePeer(name)
-	as.eventBuses[profile.Onion] = event.IPCEventManagerFrom(as.bridge, profile.Onion, as.eventBuses[profile.Onion])
-	if err != nil {
-		log.Errorf("Could not create Peer: %v\n", err)
-		message := event.IPCMessage{Dest: DestApp, Message: event.NewEventList(event.PeerError, event.Error, err.Error())}
-		as.bridge.Write(&message)
-		return
-	}
-
-	if tag != "" {
-		profile.SetAttribute(AttributeTag, tag)
-	}
-
-	profileStore := storage.CreateProfileWriterStore(as.eventBuses[profile.Onion], path.Join(as.directory, "profiles", profile.LocalID), password, profile)
-
-	peerAuthorizations := profile.ContactsAuthorizations()
-	// TODO: Would be nice if ProtocolEngine did not need to explicitly be given the Private Key.
-	identity := primitives.InitializeIdentity(profile.Name, &profile.Ed25519PrivateKey, &profile.Ed25519PublicKey)
-	engine := connections.NewProtocolEngine(identity, profile.Ed25519PrivateKey, as.acn, as.eventBuses[profile.Onion], peerAuthorizations)
-
-	as.storage[profile.Onion] = profileStore
-	as.engines[profile.Onion] = engine
-
-	peerMsg := *profileStore.GetNewPeerMessage()
-	peerMsg.Data[event.Created] = event.True
-	peerMsg.Data[event.Status] = event.StorageNew
-	message := event.IPCMessage{Dest: DestApp, Message: peerMsg}
-	as.bridge.Write(&message)
-}
-
-func (as *applicationService) loadProfiles(password string) {
-	count := 0
-	as.applicationCore.LoadProfiles(password, false, func(profile *model.Profile, profileStore storage.ProfileStore) {
-		as.eventBuses[profile.Onion] = event.IPCEventManagerFrom(as.bridge, profile.Onion, as.eventBuses[profile.Onion])
-
-		peerAuthorizations := profile.ContactsAuthorizations()
-		identity := primitives.InitializeIdentity(profile.Name, &profile.Ed25519PrivateKey, &profile.Ed25519PublicKey)
-		engine := connections.NewProtocolEngine(identity, profile.Ed25519PrivateKey, as.acn, as.eventBuses[profile.Onion], peerAuthorizations)
-		as.asmutex.Lock()
-		as.storage[profile.Onion] = profileStore
-		as.engines[profile.Onion] = engine
-		as.asmutex.Unlock()
-
-		peerMsg := *profileStore.GetNewPeerMessage()
-		peerMsg.Data[event.Created] = event.False
-		peerMsg.Data[event.Status] = event.StorageNew
-		message := event.IPCMessage{Dest: DestApp, Message: peerMsg}
-		as.bridge.Write(&message)
-		count++
-	})
-	if count == 0 {
-		message := event.IPCMessage{Dest: DestApp, Message: event.NewEventList(event.AppError, event.Error, event.AppErrLoaded0)}
-		as.bridge.Write(&message)
-	}
-}
-
-func (as *applicationService) getACNStatusHandler() func(int, string) {
-	return func(progress int, status string) {
-		progStr := strconv.Itoa(progress)
-		as.bridge.Write(&event.IPCMessage{Dest: DestApp, Message: event.NewEventList(event.ACNStatus, event.Progress, progStr, event.Status, status)})
-		as.applicationCore.coremutex.Lock()
-		defer as.applicationCore.coremutex.Unlock()
-		for _, bus := range as.eventBuses {
-			bus.Publish(event.NewEventList(event.ACNStatus, event.Progress, progStr, event.Status, status))
-		}
-	}
-}
-
-func (as *applicationService) deletePeer(onion string) {
-	as.asmutex.Lock()
-	defer as.asmutex.Unlock()
-
-	as.appletPlugins.ShutdownPeer(onion)
-	as.plugins.Delete(onion)
-
-	as.engines[onion].Shutdown()
-	delete(as.engines, onion)
-
-	as.storage[onion].Shutdown()
-	as.storage[onion].Delete()
-	delete(as.storage, onion)
-
-	as.applicationCore.DeletePeer(onion)
-}
-
-func (as *applicationService) ShutdownPeer(onion string) {
-	as.engines[onion].Shutdown()
-	delete(as.engines, onion)
-	as.storage[onion].Shutdown()
-	delete(as.storage, onion)
-	as.eventBuses[onion].Shutdown()
-	delete(as.eventBuses, onion)
-}
-
-// Shutdown shuts down the application Service and all peer related backend parts
-func (as *applicationService) Shutdown() {
-	log.Debugf("shutting down application service...")
-	as.appletPlugins.Shutdown()
-	for id := range as.engines {
-		log.Debugf("shutting down application service peer engine %v", id)
-		as.ShutdownPeer(id)
-	}
-}

app/applets.go

@@ -1,121 +0,0 @@
-package app
-
-import (
-	"cwtch.im/cwtch/event"
-	"git.openprivacy.ca/openprivacy/connectivity"
-	"git.openprivacy.ca/openprivacy/log"
-	"sync"
-
-	"cwtch.im/cwtch/app/plugins"
-	"cwtch.im/cwtch/peer"
-)
-
-type appletPeers struct {
-	peerLock sync.Mutex
-	peers    map[string]peer.CwtchPeer
-	launched bool // bit hacky, place holder while we transition to full multi peer support and a better api
-}
-
-type appletACN struct {
-	acn connectivity.ACN
-}
-
-type appletPlugins struct {
-	plugins sync.Map //map[string] []plugins.Plugin
-}
-
-// ***** applet ACN
-
-func (a *appletACN) init(acn connectivity.ACN, publish func(int, string)) {
-	a.acn = acn
-	acn.SetStatusCallback(publish)
-	prog, status := acn.GetBootstrapStatus()
-	publish(prog, status)
-}
-
-func (a *appletACN) Shutdown() {
-	a.acn.Close()
-}
-
-// ***** appletPeers
-
-func (ap *appletPeers) init() {
-	ap.peers = make(map[string]peer.CwtchPeer)
-	ap.launched = false
-}
-
-// LaunchPeers starts each peer Listening and connecting to peers and groups
-func (ap *appletPeers) LaunchPeers() {
-	log.Debugf("appletPeers LaunchPeers\n")
-	ap.peerLock.Lock()
-	defer ap.peerLock.Unlock()
-	if ap.launched {
-		return
-	}
-	for pid, p := range ap.peers {
-		log.Debugf("Launching %v\n", pid)
-		p.Listen()
-		log.Debugf("done Listen() for %v\n", pid)
-		p.StartPeersConnections()
-		log.Debugf("done StartPeersConnections() for %v\n", pid)
-	}
-	ap.launched = true
-}
-
-// ListPeers returns a map of onions to their profile's Name
-func (ap *appletPeers) ListPeers() map[string]string {
-	keys := map[string]string{}
-
-	ap.peerLock.Lock()
-	defer ap.peerLock.Unlock()
-	for k, p := range ap.peers {
-		keys[k] = p.GetOnion()
-	}
-	return keys
-}
-
-// GetPeer returns a cwtchPeer for a given onion address
-func (ap *appletPeers) GetPeer(onion string) peer.CwtchPeer {
-	if peer, ok := ap.peers[onion]; ok {
-		return peer
-	}
-	return nil
-}
-
-// ***** applet Plugins
-
-func (ap *appletPlugins) Shutdown() {
-	log.Debugf("shutting down applet plugins...")
-	ap.plugins.Range(func(k, v interface{}) bool {
-		log.Debugf("shutting down plugins for %v", k)
-		ap.ShutdownPeer(k.(string))
-		return true
-	})
-}
-
-func (ap *appletPlugins) ShutdownPeer(peerid string) {
-	log.Debugf("shutting down plugins for %v", peerid)
-	pluginsI, ok := ap.plugins.Load(peerid)
-	if ok {
-		plugins := pluginsI.([]plugins.Plugin)
-		for _, plugin := range plugins {
-			log.Debugf("shutting down plugin: %v", plugin)
-			plugin.Shutdown()
-		}
-	}
-}
-
-func (ap *appletPlugins) AddPlugin(peerid string, id plugins.PluginID, bus event.Manager, acn connectivity.ACN) {
-	if _, exists := ap.plugins.Load(peerid); !exists {
-		ap.plugins.Store(peerid, []plugins.Plugin{})
-	}
-
-	pluginsinf, _ := ap.plugins.Load(peerid)
-	peerPlugins := pluginsinf.([]plugins.Plugin)
-
-	newp := plugins.Get(id, bus, acn, peerid)
-	newp.Start()
-	peerPlugins = append(peerPlugins, newp)
-	log.Debugf("storing plugin for %v %v", peerid, peerPlugins)
-	ap.plugins.Store(peerid, peerPlugins)
-}

app/bots/servermon/main.go

@@ -1,86 +0,0 @@
-package main
-
-import (
-	app2 "cwtch.im/cwtch/app"
-	"cwtch.im/cwtch/app/utils"
-	"cwtch.im/cwtch/peer"
-	"cwtch.im/cwtch/protocol/connections"
-	"errors"
-	"fmt"
-	"git.openprivacy.ca/openprivacy/connectivity/tor"
-	"os"
-	"time"
-)
-
-func waitForPeerGroupConnection(peer peer.CwtchPeer, groupID string) error {
-	for {
-		group := peer.GetGroup(groupID)
-		if group != nil {
-			state, _ := peer.GetGroupState(groupID)
-			if state == connections.FAILED {
-				return errors.New("Connection to group " + groupID + " failed!")
-			}
-			if state != connections.AUTHENTICATED {
-				fmt.Printf("peer %v waiting to authenticate with group %v 's server, current state: %v\n", peer.GetOnion(), groupID, connections.ConnectionStateName[state])
-				time.Sleep(time.Second * 10)
-				continue
-			}
-		} else {
-			return errors.New("peer server connections should have entry for server but do not")
-		}
-		break
-	}
-	return nil
-}
-
-func main() {
-	if len(os.Args) != 2 {
-		fmt.Printf("Usage: ./servermon SERVER_ADDRESS\n")
-		os.Exit(1)
-	}
-
-	serverAddr := os.Args[1]
-
-	acn, err := tor.NewTorACN(".", "")
-	if err != nil {
-		fmt.Printf("Could not start tor: %v\n", err)
-		os.Exit(1)
-	}
-
-	app := app2.NewApp(acn, ".")
-
-	app.CreatePeer("servermon", "be gay, do crimes")
-
-	botPeer := utils.WaitGetPeer(app, "servermon")
-
-	fmt.Printf("Connecting to %v...\n", serverAddr)
-	botPeer.JoinServer(serverAddr)
-	groupID, _, err := botPeer.StartGroup(serverAddr)
-	if err != nil {
-		fmt.Printf("Error creating group on server %v: %v\n", serverAddr, err)
-		os.Exit(1)
-	}
-
-	err = waitForPeerGroupConnection(botPeer, groupID)
-	if err != nil {
-		fmt.Printf("Could not connect to server %v: %v\n", serverAddr, err)
-		os.Exit(1)
-	}
-
-	timeout := 1 * time.Second
-	timeElapsed := 0 * time.Second
-	for {
-		_, err := botPeer.SendMessageToGroupTracked(groupID, timeout.String())
-		if err != nil {
-			fmt.Printf("Sent to group on server %v failed at interval %v of total %v with: %v\n", serverAddr, timeout, timeElapsed, err)
-			os.Exit(1)
-		} else {
-			fmt.Printf("Successfully sent message to %v at interval %v of total %v\n", serverAddr, timeout, timeElapsed)
-		}
-		time.Sleep(timeout)
-		timeElapsed += timeout
-		if timeout < 2*time.Minute {
-			timeout = timeout * 2
-		}
-	}
-}

app/cli/main.go

@@ -0,0 +1,591 @@
+package main
+
+import (
+	app2 "cwtch.im/cwtch/app"
+	peer2 "cwtch.im/cwtch/peer"
+
+	"bytes"
+	"cwtch.im/cwtch/model"
+	"cwtch.im/cwtch/peer/connections"
+	"fmt"
+	"github.com/c-bata/go-prompt"
+	"golang.org/x/crypto/ssh/terminal"
+	"log"
+	"os"
+	"os/exec"
+	"os/user"
+	"path"
+	"strings"
+	"syscall"
+	"time"
+)
+
+var app app2.Application
+var peer peer2.CwtchPeer
+var group *model.Group
+var groupFollowBreakChan chan bool
+var prmpt string
+
+var suggestionsBase = []prompt.Suggest{
+	{Text: "/new-profile", Description: "create a new profile"},
+	{Text: "/load-profiles", Description: "loads profiles with a password"},
+	{Text: "/list-profiles", Description: "list active profiles"},
+	{Text: "/select-profile", Description: "selects an active profile to use"},
+	{Text: "/help", Description: "print list of commands"},
+	{Text: "/quit", Description: "quit cwtch"},
+}
+
+var suggestionsSelectedProfile = []prompt.Suggest{
+	{Text: "/info", Description: "show user info"},
+	{Text: "/list-contacts", Description: "retrieve a list of contacts"},
+	{Text: "/list-groups", Description: "retrieve a list of groups"},
+	{Text: "/new-group", Description: "create a new group on a server"},
+	{Text: "/select-group", Description: "selects a group to follow"},
+	{Text: "/unselect-group", Description: "stop following the current group"},
+	{Text: "/invite", Description: "invite a new contact"},
+	{Text: "/invite-to-group", Description: "invite an existing contact to join an existing group"},
+	{Text: "/accept-invite", Description: "accept the invite of a group"},
+	{Text: "/list-servers", Description: "retrieve a list of servers and their connection status"},
+	{Text: "/list-peers", Description: "retrieve a list of peers and their connection status"},
+	{Text: "/export-group", Description: "export a group invite: prints as a string"},
+	{Text: "/trust", Description: "trust a peer"},
+	{Text: "/block", Description: "block a peer - you will no longer see messages or connect to this peer"},
+}
+
+var suggestions = suggestionsBase
+
+var usages = map[string]string{
+	"/new-profile":     "/new-profile [name]",
+	"/load-profiles":   "/load-profiles",
+	"/list-profiles":   "",
+	"/select-profile":  "/select-profile [onion]",
+	"/quit":            "",
+	"/list-servers":    "",
+	"/list-peers":      "",
+	"/list-contacts":   "",
+	"/list-groups":     "",
+	"/select-group":    "/select-group [groupid]",
+	"/unselect-group":  "",
+	"/export-group":    "/export-group [groupid]",
+	"/info":            "",
+	"/send":            "/send [groupid] [message]",
+	"/timeline":        "/timeline [groupid]",
+	"/accept-invite":   "/accept-invite [groupid]",
+	"/invite":          "/invite [peerid]",
+	"/invite-to-group": "/invite-to-group [groupid] [peerid]",
+	"/new-group":       "/new-group [server]",
+	"/help":            "",
+	"/trust":           "/trust [peerid]",
+	"/block":           "/block [peerid]",
+}
+
+func printMessage(m model.Message) {
+	p := peer.GetContact(m.PeerID)
+	name := "unknown"
+	if p != nil {
+		name = p.Name
+	} else if peer.GetProfile().Onion == m.PeerID {
+		name = peer.GetProfile().Name
+	}
+
+	fmt.Printf("%v %v (%v): %v\n", m.Timestamp, name, m.PeerID, m.Message)
+}
+
+func startGroupFollow() {
+	groupFollowBreakChan = make(chan bool)
+	go func() {
+		for {
+			l := len(group.Timeline.GetMessages())
+			select {
+			case <-time.After(1 * time.Second):
+				if group == nil {
+					return
+				}
+				gms := group.Timeline.GetMessages()
+				if len(gms) != l {
+					fmt.Printf("\n")
+					for ; l < len(gms); l++ {
+						printMessage(gms[l])
+					}
+					fmt.Printf(prmpt)
+				}
+			case <-groupFollowBreakChan:
+				return
+			}
+		}
+	}()
+}
+
+func stopGroupFollow() {
+	if group != nil {
+		groupFollowBreakChan <- true
+		group = nil
+	}
+}
+
+func completer(d prompt.Document) []prompt.Suggest {
+
+	var s []prompt.Suggest
+
+	if d.FindStartOfPreviousWord() == 0 {
+		return prompt.FilterHasPrefix(suggestions, d.GetWordBeforeCursor(), true)
+	}
+
+	w := d.CurrentLine()
+
+	// Suggest a profile id
+	if strings.HasPrefix(w, "/select-profile") {
+		s = []prompt.Suggest{}
+		peerlist := app.ListPeers()
+		for onion, peername := range peerlist {
+			s = append(s, prompt.Suggest{Text: onion, Description: peername})
+		}
+	}
+
+	if peer == nil {
+		return s
+	}
+
+	// Suggest groupid
+	if /*strings.HasPrefix(w, "send") || strings.HasPrefix(w, "timeline") ||*/ strings.HasPrefix(w, "/export-group") || strings.HasPrefix(w, "/select-group") {
+		s = []prompt.Suggest{}
+		groups := peer.GetGroups()
+		for _, groupID := range groups {
+			group := peer.GetGroup(groupID)
+			s = append(s, prompt.Suggest{Text: group.GroupID, Description: "Group owned by " + group.Owner + " on " + group.GroupServer})
+		}
+		return prompt.FilterHasPrefix(s, d.GetWordBeforeCursor(), true)
+	}
+
+	// Suggest unaccepted group
+	if strings.HasPrefix(w, "/accept-invite") {
+		s = []prompt.Suggest{}
+		groups := peer.GetGroups()
+		for _, groupID := range groups {
+			group := peer.GetGroup(groupID)
+			if group.Accepted == false {
+				s = append(s, prompt.Suggest{Text: group.GroupID, Description: "Group owned by " + group.Owner + " on " + group.GroupServer})
+			}
+		}
+		return prompt.FilterHasPrefix(s, d.GetWordBeforeCursor(), true)
+	}
+
+	// suggest groupid AND peerid
+	if strings.HasPrefix(w, "/invite-to-group") {
+
+		if d.FindStartOfPreviousWordWithSpace() == 0 {
+			s = []prompt.Suggest{}
+			groups := peer.GetGroups()
+			for _, groupID := range groups {
+				group := peer.GetGroup(groupID)
+				if group.Owner == "self" {
+					s = append(s, prompt.Suggest{Text: group.GroupID, Description: "Group owned by " + group.Owner + " on " + group.GroupServer})
+				}
+			}
+			return prompt.FilterHasPrefix(s, d.GetWordBeforeCursor(), true)
+		}
+
+		s = []prompt.Suggest{}
+		contacts := peer.GetContacts()
+		for _, onion := range contacts {
+			contact := peer.GetContact(onion)
+			s = append(s, prompt.Suggest{Text: contact.Onion, Description: contact.Name})
+		}
+		return prompt.FilterHasPrefix(s, d.GetWordBeforeCursor(), true)
+	}
+
+	// Suggest contact onion / peerid
+	if strings.HasPrefix(w, "/block") || strings.HasPrefix(w, "/trust") || strings.HasPrefix(w, "/invite") {
+		s = []prompt.Suggest{}
+		contacts := peer.GetContacts()
+		for _, onion := range contacts {
+			contact := peer.GetContact(onion)
+			s = append(s, prompt.Suggest{Text: contact.Onion, Description: contact.Name})
+		}
+		return prompt.FilterHasPrefix(s, d.GetWordBeforeCursor(), true)
+	}
+
+	return s
+}
+
+func main() {
+
+	cwtch :=
+		`
+                                                   #, #'
+                                                  @@@@@@:
+                                                  @@@@@@.
+                             @'@@+#'               @@@@+
+                             ''''''@               #+@ :
+                             @''''+;+'             .   '
+                              @''@'    :+'     ,  ;     ##, +'
+                               ,@@         ;' #'#@''.   #''@''#
+                                  #           ''''''#:,,#'''''@
+                                   :          @''''@    :+'''@
+                                    '         @;+'@       @'#
+                                    .:# '#..#   '#         @
+                                     @@@@@@
+                                     @@@@@@
+                                     '@@@@
+                                       @#                             .  .
+                                                +++,                 #'@+'@
+                                                ''',                ''''''#
+                             .#+#               ''',                 @'''+,
+                             @''#               ''',                  .#@
+     :;                     '@''#       .;.     ''',  '                :          ;.     ,
+   @+'''@  '+'+   @++   @+'@+''''+@   #+'''#:   ''';#''+@             @@@@  @@@@@@@@@ :@@@@#
+  #''''''#  +''.  +'':  +'''''''''+  @'''''''#  '''+'''''@            @@@@  @@@@@@@@@@@@@@@@:
+ @'''@@'''@ @''# ,'''@  ''+ @@''+#+ :'''@@+'''  ''''@@''''            @@@@  @@@@@@@@@@@@@@@@@
+ '''#  @''# +''@ @'''# ;''@  +''+   @''@  ,+'', '''@  #'''.           @@@@  @@@@  '@@@#  @@@@
+;'''    @@; '''# #'@'' @''@  @''+   +''#   .@@  ''',   '''.           @@@@  @@@    @@@   .@@@
+@''#         #'' ''#''#@''.  #''#   '''.        '''.   +'',           @@@@  @@@    @@@    @@@
+@''#         @''@'' #'@+'+   #''#   '''.        ''',   +'', +@@@.@@@  @@@@  @@@,   @@@   ,@@@
+;''+     @,  +''@'# @'+''@   @''#   +'';    '+  ''',   +'', @@@@@@@@# @@@@  @@@.  .@@@   .@@@
+ '''#  ++'+   ''''@ ,''''#   #'''   @''@  '@''+ ''',   ''', @@@@@@@@: @@@@  @@@;  .@@@'  ;@@@
+ @'''@@'''@   #'''.  +''''   ;'''#@ :'''#@+''+  ''',   ''',  @@@@@@#  @@@@  @@@+  ,@@@.  @@@@
+  #''''''#    @''+   @''+     +''''  @'''''''#  ''',   ''',   #@@@.   @@@@  @@@+   @@@   @@@@
+   @+''+@     '++@   ;++@     '#''@   ##'''@:   +++,   +++,    :@     @@@@  @@@'   @@@   '@@@
+                                :'                              '                          '`
+	fmt.Printf("%v\n\n", cwtch)
+
+	quit := false
+
+	torPath, err := exec.LookPath("tor")
+	if err != nil {
+		log.Fatal("tor could not be found on this system. Please install it in the system $PATH")
+	}
+
+	usr, err := user.Current()
+	if err != nil {
+		log.Fatalf("\nError: could not load current user: %v\n", err)
+	}
+
+	app, err = app2.NewApp(path.Join(usr.HomeDir, ".cwtch"), torPath)
+	if err != nil {
+		log.Fatalf("Error initializing application: %v", err)
+	}
+	fmt.Printf("\nWelcome to Cwtch!\n")
+	fmt.Printf("If this if your first time you should create a profile by running `/new-profile`\n")
+	fmt.Printf("`/load-profiles` will prompt you for a password and load profiles from storage\n")
+	fmt.Printf("`/help` will show you other available commands\n")
+	fmt.Printf("There is full [TAB] completion support\n\n")
+
+	var history []string
+	for !quit {
+
+		prmpt = "cwtch> "
+		if group != nil {
+			prmpt = fmt.Sprintf("cwtch %v (%v) [%v] say> ", peer.GetProfile().Name, peer.GetProfile().Onion, group.GroupID)
+		} else if peer != nil {
+			prmpt = fmt.Sprintf("cwtch %v (%v)> ", peer.GetProfile().Name, peer.GetProfile().Onion)
+		}
+
+		text := prompt.Input(prmpt, completer, prompt.OptionSuggestionBGColor(prompt.Purple),
+			prompt.OptionDescriptionBGColor(prompt.White),
+			prompt.OptionHistory(history))
+
+		commands := strings.Split(text[0:], " ")
+		history = append(history, text)
+
+		if peer == nil {
+			if commands[0] != "/help" && commands[0] != "/quit" && commands[0] != "/new-profile" && commands[0] != "/load-profiles" && commands[0] != "/select-profile" && commands[0] != "/list-profiles" {
+				fmt.Printf("Profile needs to be set\n")
+				continue
+			}
+		}
+
+		// Send
+		if group != nil && !strings.HasPrefix(commands[0], "/") {
+			err := peer.SendMessageToGroup(group.GroupID, text)
+			if err != nil {
+				fmt.Printf("Error sending message: %v\n", err)
+			}
+		}
+
+		switch commands[0] {
+		case "/quit":
+			if peer != nil {
+				peer.Save()
+			}
+			quit = true
+		case "/new-profile":
+			if len(commands) == 2 {
+				fmt.Print("** WARNING: PASSWORDS CANNOT BE RECOVERED! **\n")
+
+				password := ""
+				failcount := 0
+				for ; failcount < 3; failcount++ {
+					fmt.Print("Enter a password to encrypt the profile: ")
+					bytePassword, _ := terminal.ReadPassword(int(syscall.Stdin))
+					if string(bytePassword) == "" {
+						fmt.Print("\nBlank password not allowed.")
+						continue
+					}
+					fmt.Print("\nRe-enter password: ")
+					bytePassword2, _ := terminal.ReadPassword(int(syscall.Stdin))
+					if bytes.Equal(bytePassword, bytePassword2) {
+						password = string(bytePassword)
+						break
+					} else {
+						fmt.Print("\nPASSWORDS DIDN'T MATCH! Try again.\n")
+					}
+				}
+
+				if failcount >= 3 {
+					fmt.Printf("Error creating profile for %v: Your password entries must match!\n", commands[1])
+				} else {
+					p, err := app.CreatePeer(commands[1], password)
+					if err == nil {
+						stopGroupFollow()
+						fmt.Printf("\nNew profile created for %v\n", commands[1])
+						peer = p
+						suggestions = append(suggestionsBase, suggestionsSelectedProfile...)
+
+					} else {
+						fmt.Printf("\nError creating profile for %v: %v\n", commands[1], err)
+					}
+				}
+			} else {
+				fmt.Printf("Error creating New Profile, usage: %s\n", usages[commands[0]])
+			}
+		case "/load-profiles":
+			fmt.Print("Enter a password to decrypt the profile: ")
+			bytePassword, err := terminal.ReadPassword(int(syscall.Stdin))
+
+			err = app.LoadProfiles(string(bytePassword))
+			if err == nil {
+				profiles := app.ListPeers()
+				fmt.Printf("\n%v profiles active now\n", len(profiles))
+				fmt.Printf("You should run `select-profile` to use a profile or `list-profiles` to view loaded profiles\n")
+			} else {
+				fmt.Printf("\nError loading profiles: %v\n", err)
+			}
+
+		case "/list-profiles":
+			peerlist := app.ListPeers()
+			for onion, peername := range peerlist {
+				fmt.Printf("  %v\t%v\n", onion, peername)
+			}
+		case "/select-profile":
+			if len(commands) == 2 {
+				p := app.GetPeer(commands[1])
+				if p == nil {
+					fmt.Printf("Error: profile '%v' does not exist\n", commands[1])
+				} else {
+					stopGroupFollow()
+					peer = p
+					suggestions = append(suggestionsBase, suggestionsSelectedProfile...)
+				}
+
+				// Auto Peer / Join Server
+				// TODO There are some privacy implications with this that we should
+				// think over.
+				for _, name := range p.GetProfile().GetContacts() {
+					profile := p.GetContact(name)
+					if profile.Trusted && !profile.Blocked {
+						p.PeerWithOnion(profile.Onion)
+					}
+				}
+
+				for _, groupid := range p.GetGroups() {
+					group := p.GetGroup(groupid)
+					if group.Accepted || group.Owner == "self" {
+						p.JoinServer(group.GroupServer)
+					}
+				}
+
+			} else {
+				fmt.Printf("Error selecting profile, usage: %s\n", usages[commands[0]])
+			}
+		case "/info":
+			if peer != nil {
+				fmt.Printf("Address cwtch:%v\n", peer.GetProfile().Onion)
+			} else {
+				fmt.Printf("Profile needs to be set\n")
+			}
+		case "/invite":
+			if len(commands) == 2 {
+				fmt.Printf("Inviting cwtch:%v\n", commands[1])
+				peer.PeerWithOnion(commands[1])
+			} else {
+				fmt.Printf("Error inviting peer, usage: %s\n", usages[commands[0]])
+			}
+		case "/list-peers":
+			peers := peer.GetPeers()
+			for p, s := range peers {
+				fmt.Printf("Name: %v Status: %v\n", p, connections.ConnectionStateName[s])
+			}
+		case "/list-servers":
+			servers := peer.GetServers()
+			for s, st := range servers {
+				fmt.Printf("Name: %v Status: %v\n", s, connections.ConnectionStateName[st])
+			}
+		case "/list-contacts":
+			contacts := peer.GetContacts()
+			for _, onion := range contacts {
+				c := peer.GetContact(onion)
+				fmt.Printf("Name: %v Onion: %v Trusted: %v\n", c.Name, c.Onion, c.Trusted)
+			}
+		case "/list-groups":
+			for _, gid := range peer.GetGroups() {
+				g := peer.GetGroup(gid)
+				fmt.Printf("Group Id: %v Owner: %v Accepted:%v\n", gid, g.Owner, g.Accepted)
+			}
+		case "/trust":
+			if len(commands) == 2 {
+				peer.TrustPeer(commands[1])
+			} else {
+				fmt.Printf("Error trusting peer, usage: %s\n", usages[commands[0]])
+			}
+		case "/block":
+			if len(commands) == 2 {
+				peer.BlockPeer(commands[1])
+			} else {
+				fmt.Printf("Error blocking peer, usage: %s\n", usages[commands[0]])
+			}
+		case "/accept-invite":
+			if len(commands) == 2 {
+				groupID := commands[1]
+				err := peer.AcceptInvite(groupID)
+				if err != nil {
+					fmt.Printf("Error: %v\n", err)
+				} else {
+					peer.Save()
+					group := peer.GetGroup(groupID)
+					if group == nil {
+						fmt.Printf("Error: group does not exist\n")
+					} else {
+						peer.JoinServer(group.GroupServer)
+					}
+				}
+			} else {
+				fmt.Printf("Error accepting invite, usage: %s\n", usages[commands[0]])
+			}
+		case "/invite-to-group":
+			if len(commands) == 3 {
+				fmt.Printf("Inviting %v to %v\n", commands[1], commands[2])
+				err := peer.InviteOnionToGroup(commands[2], commands[1])
+				if err != nil {
+					fmt.Printf("Error: %v\n", err)
+				}
+			} else {
+				fmt.Printf("Error inviting peer to group, usage: %s\n", usages[commands[0]])
+			}
+		case "/new-group":
+			if len(commands) == 2 && commands[1] != "" {
+				fmt.Printf("Setting up a new group on server:%v\n", commands[1])
+				id, _, err := peer.StartGroup(commands[1])
+				if err == nil {
+					fmt.Printf("New Group [%v] created for server %v\n", id, commands[1])
+					peer.Save()
+					group := peer.GetGroup(id)
+					if group == nil {
+						fmt.Printf("Error: group does not exist\n")
+					} else {
+						peer.JoinServer(group.GroupServer)
+					}
+				} else {
+					fmt.Printf("Error creating new group: %v", err)
+				}
+			} else {
+				fmt.Printf("Error creating a new group, usage: %s\n", usages[commands[0]])
+			}
+		case "/select-group":
+			if len(commands) == 2 {
+				g := peer.GetGroup(commands[1])
+				if g == nil {
+					fmt.Printf("Error: group %s not found!\n", commands[1])
+				} else {
+					stopGroupFollow()
+					group = g
+
+					fmt.Printf("--------------- %v ---------------\n", group.GroupID)
+					gms := group.Timeline.Messages
+					max := 20
+					if len(gms) < max {
+						max = len(gms)
+					}
+					for i := len(gms) - max; i < len(gms); i++ {
+						printMessage(gms[i])
+					}
+					fmt.Printf("------------------------------\n")
+
+					startGroupFollow()
+				}
+			} else {
+				fmt.Printf("Error selecting a group, usage: %s\n", usages[commands[0]])
+			}
+		case "/unselect-group":
+			stopGroupFollow()
+		case "/export-group":
+			if len(commands) == 2 {
+				group := peer.GetGroup(commands[1])
+				if group == nil {
+					fmt.Printf("Error: group does not exist\n")
+				} else {
+					invite, _ := peer.ExportGroup(commands[1])
+					fmt.Printf("Invite: %v\n", invite)
+				}
+			} else {
+				fmt.Printf("Error exporting group, usage: %s\n", usages[commands[0]])
+			}
+		case "/save":
+			peer.Save()
+		case "/help":
+			for _, command := range suggestions {
+				fmt.Printf("%-18s%-56s%s\n", command.Text, command.Description, usages[command.Text])
+			}
+		case "/sendlots":
+			if len(commands) == 2 {
+				group := peer.GetGroup(commands[1])
+				if group == nil {
+					fmt.Printf("Error: group does not exist\n")
+				} else {
+					for i := 0; i < 100; i++ {
+						fmt.Printf("Sending message: %v\n", i)
+						err := peer.SendMessageToGroup(commands[1], fmt.Sprintf("this is message %v", i))
+						if err != nil {
+							fmt.Printf("could not send message %v because %v\n", i, err)
+						}
+					}
+					fmt.Printf("Waiting 5 seconds for message to process...\n")
+					time.Sleep(time.Second * 5)
+					timeline := group.GetTimeline()
+					totalLatency := time.Duration(0)
+					maxLatency := time.Duration(0)
+					totalMessages := 0
+					for i := 0; i < 100; i++ {
+						found := false
+						for _, m := range timeline {
+							if m.Message == fmt.Sprintf("this is message %v", i) && m.PeerID == peer.GetProfile().Onion {
+								found = true
+								latency := m.Received.Sub(m.Timestamp)
+								fmt.Printf("Latency for Message %v was %v\n", i, latency)
+								totalLatency = totalLatency + latency
+								if maxLatency < latency {
+									maxLatency = latency
+								}
+								totalMessages++
+							}
+						}
+
+						if !found {
+							fmt.Printf("message %v was never received\n", i)
+						}
+					}
+
+					fmt.Printf("Average Latency for %v messages was: %vms\n", totalMessages, time.Duration(int64(totalLatency)/int64(totalMessages)))
+					fmt.Printf("Max Latency for %v messages was: %vms\n", totalMessages, maxLatency)
+
+				}
+			}
+		}
+		if peer != nil {
+			peer.Save()
+		}
+	}
+
+	app.Shutdown()
+	os.Exit(0)
+
+}

app/cwtchutil/main.go

@@ -1,159 +0,0 @@
-package main
-
-import (
-	"errors"
-	"fmt"
-	"git.openprivacy.ca/openprivacy/log"
-	"os"
-	//"bufio"
-	//"cwtch.im/cwtch/storage"
-)
-
-func convertTorFile(filename string, password string) error {
-	return errors.New("this code doesn't work and can never work :( it's a math thing")
-
-	/*name, _ := diceware.Generate(2)
-	sk, err := ioutil.ReadFile("hs_ed25519_secret_key")
-	if err != nil {
-		return err
-	}
-	sk = sk[32:]
-
-	pk, err := ioutil.ReadFile("hs_ed25519_public_key")
-	if err != nil {
-		return err
-	}
-	pk = pk[32:]
-
-	onion, err := ioutil.ReadFile("hostname")
-	if err != nil {
-		return err
-	}
-	onion = onion[:56]
-
-	peer := libpeer.NewCwtchPeer(strings.Join(name, "-"))
-
-	fmt.Printf("%d %d %s\n", len(peer.GetProfile().Ed25519PublicKey), len(peer.GetProfile().Ed25519PrivateKey), peer.GetProfile().Onion)
-	peer.GetProfile().Ed25519PrivateKey = sk
-	peer.GetProfile().Ed25519PublicKey = pk
-	peer.GetProfile().Onion = string(onion)
-	fileStore := storage2.NewFileStore(filename, password)
-	err = fileStore.save(peer)
-	if err != nil {
-		return err
-	}
-
-	log.Infof("success! loaded %d byte pk and %d byte sk for %s.onion\n", len(pk), len(sk), onion)
-	return nil*/
-}
-
-/*
-func vanity() error {
-	for {
-		pk, sk, err := ed25519.GenerateKey(rand.Reader)
-		if err != nil {
-			continue
-		}
-		onion := utils.GetTorV3Hostname(pk)
-		for i := 4; i < len(os.Args); i++ {
-			if strings.HasPrefix(onion, os.Args[i]) {
-				peer := libpeer.NewCwtchPeer(os.Args[i])
-				peer.GetProfile().Ed25519PrivateKey = sk
-				peer.GetProfile().Ed25519PublicKey = pk
-				peer.GetProfile().Onion = onion
-				profileStore, _ := storage2.NewProfileStore(nil, os.Args[3], onion+".cwtch")
-				profileStore.Init("")
-				// need to signal new onion? impossible
-				log.Infof("found %s.onion\n", onion)
-			}
-		}
-	}
-}*/
-
-func printHelp() {
-	log.Infoln("usage: cwtchutil {help, convert-cwtch-file, convert-tor-file, changepw, vanity}")
-}
-
-func main() {
-	log.SetLevel(log.LevelInfo)
-	if len(os.Args) < 2 {
-		printHelp()
-		os.Exit(1)
-	}
-
-	switch os.Args[1] {
-	default:
-		printHelp()
-	case "help":
-		printHelp()
-	case "convert-tor-file":
-		if len(os.Args) != 4 {
-			fmt.Println("example: cwtchutil convert-tor-file /var/lib/tor/hs1 passw0rd")
-			os.Exit(1)
-		}
-		err := convertTorFile(os.Args[2], os.Args[3])
-		if err != nil {
-			log.Errorln(err)
-		}
-		/*case "vanity":
-		if len(os.Args) < 5 {
-			fmt.Println("example: cwtchutil vanity 4 passw0rd erinn openpriv")
-			os.Exit(1)
-		}
-
-		goroutines, err := strconv.Atoi(os.Args[2])
-		if err != nil {
-			log.Errorf("first parameter after vanity should be a number\n")
-			os.Exit(1)
-		}
-		log.Infoln("searching. press ctrl+c to stop")
-		for i := 0; i < goroutines; i++ {
-			go vanity()
-		}
-
-		for { // run until ctrl+c
-			time.Sleep(time.Hour * 24)
-		}*/
-		/*case "changepw":
-		if len(os.Args) != 3 {
-			fmt.Println("example: cwtch changepw ~/.cwtch/profiles/XXX")
-			os.Exit(1)
-		}
-
-		fmt.Printf("old password: ")
-		reader := bufio.NewReader(os.Stdin)
-		pw, err := reader.ReadString('\n')
-		if err != nil {
-			log.Errorln(err)
-			os.Exit(1)
-		}
-		pw = pw[:len(pw)-1]
-
-		profileStore, _ := storage.NewProfileStore(nil, os.Args[2], pw)
-
-		err = profileStore.Read()
-		if err != nil {
-			log.Errorln(err)
-			os.Exit(1)
-		}
-
-		fmt.Printf("new password: ")
-		newpw1, err := reader.ReadString('\n')
-		if err != nil {
-			log.Errorln(err)
-			os.Exit(1)
-		}
-		newpw1 = newpw1[:len(newpw1)-1] // fuck go with this linebreak shit ^ea
-
-		fileStore2, _ := storage.NewProfileStore(nil, os.Args[2], newpw1)
-		// No way to copy, populate this method
-		err = fileStore2.save(peer)
-		if err != nil {
-			log.Errorln(err)
-			os.Exit(1)
-		}
-
-		log.Infoln("success!")
-		*/
-	}
-}

app/peer/alice/alice.go

@@ -1,38 +1,18 @@
 package main
 
 import (
-	app2 "cwtch.im/cwtch/app"
-	"cwtch.im/cwtch/app/utils"
-	"cwtch.im/cwtch/event"
-	"git.openprivacy.ca/openprivacy/connectivity/tor"
-	"git.openprivacy.ca/openprivacy/log"
-	"os"
-	"path"
+	"cwtch.im/cwtch/peer"
+	"log"
 )
 
 func main() {
+	alice, _ := peer.NewCwtchPeer("alice", "password", ".")
 
-	// System Setup, We need Tor and Logging up and Running
-	log.AddEverythingFromPattern("peer/alice")
-	log.SetLevel(log.LevelDebug)
-
-	acn, err := tor.NewTorACN(path.Join(".", ".cwtch"), "")
-	if err != nil {
-		log.Errorf("\nError connecting to Tor: %v\n", err)
-		os.Exit(1)
+	processData := func(onion string, data []byte) []byte {
+		log.Printf("Recieved %s from %v", data, onion)
+		return data
 	}
 
-	app := app2.NewApp(acn, ".")
-	app.CreatePeer("alice", "be gay, do crimes")
-	alice := utils.WaitGetPeer(app, "alice")
-	app.LaunchPeers()
-	eventBus := app.GetEventBus(alice.GetOnion())
-	queue := event.NewQueue()
-	eventBus.Subscribe(event.NewMessageFromPeer, queue)
-
-	// For every new Data Packet Alice received she will Print it out.
-	for {
-		event := queue.Next()
-		log.Printf(log.LevelInfo, "Received %v from %v: %s", event.EventType, event.Data["Onion"], event.Data["Data"])
-	}
+	alice.SetPeerDataHandler(processData)
+	alice.Listen()
 }

app/peer/bob/bob.go

@@ -1,39 +1,27 @@
 package main
 
 import (
-	app2 "cwtch.im/cwtch/app"
-	"cwtch.im/cwtch/app/utils"
-	"git.openprivacy.ca/openprivacy/connectivity/tor"
-	"git.openprivacy.ca/openprivacy/log"
-	"os"
-	"path"
+	"cwtch.im/cwtch/peer"
+	"log"
+	"strconv"
 	"time"
 )
 
 func main() {
+	bob, _ := peer.NewCwtchPeer("bob", "password", ".")
+	counter := 1
 
-	// System Boilerplate, We need Tor Up and Running
-	log.AddEverythingFromPattern("peer/bob")
-	log.SetLevel(log.LevelDebug)
-	acn, err := tor.NewTorACN(path.Join(".", ".cwtch"), "")
-	if err != nil {
-		log.Errorf("\nError connecting to Tor: %v\n", err)
-		os.Exit(1)
-	}
+	bob.SetPeerDataHandler(func(onion string, data []byte) []byte {
+		log.Printf("Recieved %s from %v", data, onion)
+		counter++
+		return []byte(strconv.Itoa(counter))
+	})
+	connection := bob.PeerWithOnion("f4b6thuwmfszsqd3fzqpr45sdem4qoazdlzr2xmnc7fq22qe746hjqqd")
 
-	app := app2.NewApp(acn, ".")
-	app.CreatePeer("bob", "be gay, do crimes")
-	bob := utils.WaitGetPeer(app, "bob")
-
-	// Add Alice's Onion Here (It changes run to run)
-	bob.PeerWithOnion("upiztu7myymjf2dn4x4czhagp7axlnqjvf5zwfegbhtpkqb6v3vgu5yd")
-
-	// Send the Message...
-	log.Infof("Waiting for Bob to Connect to Alice...")
-	bob.SendMessageToPeer("upiztu7myymjf2dn4x4czhagp7axlnqjvf5zwfegbhtpkqb6v3vgu5yd", "Hello Alice!!!")
+	log.Printf("Waiting for Bob to Connect to Alice...")
+	connection.SendPacket([]byte("Hello Alice!!!"))
 
 	// Wait a while...
-	// Everything is run in  a goroutine so the main thread has to stay active
 	time.Sleep(time.Second * 100)
 
 }

app/plugins/contactRetry.go

@@ -1,161 +0,0 @@
-package plugins
-
-import (
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/protocol/connections"
-	"git.openprivacy.ca/openprivacy/log"
-	"sync"
-	"time"
-)
-
-const tickTime = 10 * time.Second
-const maxBakoff int = 32 // 320 seconds or ~5 min
-
-type connectionType int
-
-const (
-	peerConn connectionType = iota
-	serverConn
-)
-
-type contact struct {
-	id    string
-	state connections.ConnectionState
-	ctype connectionType
-
-	ticks   int
-	backoff int
-}
-
-type contactRetry struct {
-	bus       event.Manager
-	queue     event.Queue
-	networkUp bool
-	running   bool
-	breakChan chan bool
-	onion     string
-	lastCheck time.Time
-
-	connections sync.Map //[string]*contact
-}
-
-// NewConnectionRetry returns a Plugin that when started will retry connecting to contacts with a backoff timing
-func NewConnectionRetry(bus event.Manager, onion string) Plugin {
-	cr := &contactRetry{bus: bus, queue: event.NewQueue(), breakChan: make(chan bool), connections: sync.Map{}, networkUp: false, onion: onion}
-	return cr
-}
-
-func (cr *contactRetry) Start() {
-	if !cr.running {
-		go cr.run()
-	} else {
-		log.Errorf("Attempted to start Contact Retry plugin twice for %v", cr.onion)
-	}
-}
-
-func (cr *contactRetry) run() {
-	cr.running = true
-	cr.bus.Subscribe(event.PeerStateChange, cr.queue)
-	cr.bus.Subscribe(event.ACNStatus, cr.queue)
-	cr.bus.Subscribe(event.ServerStateChange, cr.queue)
-
-	for {
-		if time.Since(cr.lastCheck) > tickTime {
-			cr.retryDisconnected()
-			cr.lastCheck = time.Now()
-		}
-		select {
-		case e := <-cr.queue.OutChan():
-			switch e.EventType {
-			case event.PeerStateChange:
-				state := connections.ConnectionStateToType()[e.Data[event.ConnectionState]]
-				peer := e.Data[event.RemotePeer]
-				cr.handleEvent(peer, state, peerConn)
-
-			case event.ServerStateChange:
-				state := connections.ConnectionStateToType()[e.Data[event.ConnectionState]]
-				server := e.Data[event.GroupServer]
-				cr.handleEvent(server, state, serverConn)
-
-			case event.ACNStatus:
-				prog := e.Data[event.Progress]
-				if prog == "100" && !cr.networkUp {
-					cr.networkUp = true
-					cr.connections.Range(func(k, v interface{}) bool {
-						p := v.(*contact)
-						p.ticks = 0
-						p.backoff = 1
-						if p.ctype == peerConn {
-							cr.bus.Publish(event.NewEvent(event.RetryPeerRequest, map[event.Field]string{event.RemotePeer: p.id}))
-						}
-						if p.ctype == serverConn {
-							cr.bus.Publish(event.NewEvent(event.RetryServerRequest, map[event.Field]string{event.GroupServer: p.id}))
-						}
-						return true
-					})
-				} else if prog != "100" {
-					cr.networkUp = false
-				}
-			}
-
-		case <-time.After(tickTime):
-			continue
-
-		case <-cr.breakChan:
-			cr.running = false
-			return
-		}
-	}
-}
-
-func (cr *contactRetry) retryDisconnected() {
-	cr.connections.Range(func(k, v interface{}) bool {
-		p := v.(*contact)
-
-		if p.state == connections.DISCONNECTED {
-			p.ticks++
-			if p.ticks >= p.backoff {
-				p.ticks = 0
-				if cr.networkUp {
-					if p.ctype == peerConn {
-						cr.bus.Publish(event.NewEvent(event.RetryPeerRequest, map[event.Field]string{event.RemotePeer: p.id}))
-					}
-					if p.ctype == serverConn {
-						cr.bus.Publish(event.NewEvent(event.RetryServerRequest, map[event.Field]string{event.GroupServer: p.id}))
-					}
-				}
-			}
-		}
-		return true
-	})
-}
-
-func (cr *contactRetry) handleEvent(id string, state connections.ConnectionState, ctype connectionType) {
-	if _, exists := cr.connections.Load(id); !exists {
-		p := &contact{id: id, state: connections.DISCONNECTED, backoff: 0, ticks: 0, ctype: ctype}
-		cr.connections.Store(id, p)
-		return
-	}
-
-	pinf, _ := cr.connections.Load(id)
-	p := pinf.(*contact)
-	if state == connections.DISCONNECTED || state == connections.FAILED || state == connections.KILLED {
-		p.state = connections.DISCONNECTED
-		if p.backoff == 0 {
-			p.backoff = 1
-		} else if p.backoff < maxBakoff {
-			p.backoff *= 2
-		}
-		p.ticks = 0
-	} else if state == connections.CONNECTING || state == connections.CONNECTED {
-		p.state = state
-	} else if state == connections.AUTHENTICATED {
-		p.state = state
-		p.backoff = 0
-	}
-}
-
-func (cr *contactRetry) Shutdown() {
-	cr.breakChan <- true
-
-}

app/plugins/networkCheck.go

@@ -1,175 +0,0 @@
-package plugins
-
-import (
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/protocol/connections"
-	"fmt"
-	"git.openprivacy.ca/openprivacy/connectivity"
-	"git.openprivacy.ca/openprivacy/log"
-	"sync"
-	"time"
-)
-
-// NetworkCheckError is a status for when the NetworkCheck Plugin has had an error making an out going connection indicating it may be offline
-const NetworkCheckError = "Error"
-
-// NetworkCheckSuccess is a status for when the NetworkCheck Plugin has had a successful message from a peer, indicating it is online right now
-const NetworkCheckSuccess = "Success"
-
-// networkCheck is a convenience plugin for testing high level availability of onion services
-type networkCheck struct {
-	bus           event.Manager
-	queue         event.Queue
-	acn           connectivity.ACN
-	onionsToCheck sync.Map // onion:string => true:bool
-	breakChan     chan bool
-	running       bool
-	offline       bool
-	offlineLock   sync.Mutex
-}
-
-// NewNetworkCheck returns a Plugin that when started will attempt various network tests
-func NewNetworkCheck(bus event.Manager, acn connectivity.ACN) Plugin {
-	nc := &networkCheck{bus: bus, acn: acn, queue: event.NewQueue(), breakChan: make(chan bool, 1)}
-	return nc
-}
-
-func (nc *networkCheck) Start() {
-	go nc.run()
-}
-
-func (nc *networkCheck) run() {
-	nc.running = true
-	nc.offline = true
-	nc.bus.Subscribe(event.ProtocolEngineStartListen, nc.queue)
-	nc.bus.Subscribe(event.NewMessageFromPeer, nc.queue)
-	nc.bus.Subscribe(event.PeerAcknowledgement, nc.queue)
-	nc.bus.Subscribe(event.EncryptedGroupMessage, nc.queue)
-	nc.bus.Subscribe(event.PeerStateChange, nc.queue)
-	nc.bus.Subscribe(event.ServerStateChange, nc.queue)
-	nc.bus.Subscribe(event.NewGetValMessageFromPeer, nc.queue)
-	nc.bus.Subscribe(event.NewRetValMessageFromPeer, nc.queue)
-	var lastMessageReceived time.Time
-	for {
-		select {
-		case <-nc.breakChan:
-			nc.running = false
-			return
-		case e := <-nc.queue.OutChan():
-			switch e.EventType {
-			// On receipt of a Listen request for an onion service we will add the onion to our list
-			// and then we will wait a minute and check the connection for the first time (the onion should be up)
-			// under normal operating circumstances
-			case event.ProtocolEngineStartListen:
-				if _, exists := nc.onionsToCheck.Load(e.Data[event.Onion]); !exists {
-					log.Debugf("initiating connection check for %v", e.Data[event.Onion])
-					nc.onionsToCheck.Store(e.Data[event.Onion], true)
-					if time.Since(lastMessageReceived) > time.Minute {
-						nc.selfTest()
-					}
-				}
-			case event.PeerStateChange:
-				fallthrough
-			case event.ServerStateChange:
-				// if we successfully connect / authenticated to a remote server / peer then we obviously have internet
-				connectionState := e.Data[event.ConnectionState]
-				nc.offlineLock.Lock()
-				if connectionState == connections.ConnectionStateName[connections.AUTHENTICATED] || connectionState == connections.ConnectionStateName[connections.CONNECTED] {
-					lastMessageReceived = time.Now()
-
-					if nc.offline {
-						nc.bus.Publish(event.NewEvent(event.NetworkStatus, map[event.Field]string{event.Error: "", event.Status: NetworkCheckSuccess}))
-						nc.offline = false
-					}
-				}
-				nc.offlineLock.Unlock()
-			default:
-				// if we receive either an encrypted group message or a peer acknowledgement we can assume the network
-				// is up and running (our onion service might still not be available, but we would aim to detect that
-				// through other actions
-				// we reset out timer
-				lastMessageReceived = time.Now()
-				nc.offlineLock.Lock()
-				if nc.offline {
-					nc.bus.Publish(event.NewEvent(event.NetworkStatus, map[event.Field]string{event.Error: "", event.Status: NetworkCheckSuccess}))
-					nc.offline = false
-				}
-				nc.offlineLock.Unlock()
-			}
-		case <-time.After(tickTime):
-			// if we haven't received an action in the last minute...kick off a set of testing
-			if time.Since(lastMessageReceived) > time.Minute {
-				nc.selfTest()
-			}
-		}
-	}
-}
-
-func (nc *networkCheck) Shutdown() {
-	if nc.running {
-		nc.queue.Shutdown()
-		log.Debugf("shutting down network status plugin")
-		nc.breakChan <- true
-	}
-}
-
-func (nc *networkCheck) selfTest() {
-	nc.onionsToCheck.Range(func(key, val interface{}) bool {
-		go nc.checkConnection(key.(string))
-		return true
-	})
-}
-
-//
-func (nc *networkCheck) checkConnection(onion string) {
-	prog, _ := nc.acn.GetBootstrapStatus()
-	if prog != 100 {
-		return
-	}
-
-	// we want to definitively time these actions out faster than tor will, because these onions should definitely be
-	// online
-	ClientTimeout := TimeoutPolicy(time.Second * 60)
-	err := ClientTimeout.ExecuteAction(func() error {
-		conn, _, err := nc.acn.Open(onion)
-		if err == nil {
-			conn.Close()
-		}
-		return err
-	})
-	nc.offlineLock.Lock()
-	defer nc.offlineLock.Unlock()
-	// regardless of the outcome we want to report a status to let anyone who might care know that we did do a check
-	if err != nil {
-		log.Debugf("publishing network error for %v -- %v\n", onion, err)
-		nc.bus.Publish(event.NewEvent(event.NetworkStatus, map[event.Field]string{event.Onion: onion, event.Error: err.Error(), event.Status: NetworkCheckError}))
-		nc.offline = true
-	} else {
-		log.Debugf("publishing network success for %v", onion)
-		nc.bus.Publish(event.NewEvent(event.NetworkStatus, map[event.Field]string{event.Onion: onion, event.Error: "", event.Status: NetworkCheckSuccess}))
-		nc.offline = false
-	}
-}
-
-// TODO we might want to reuse this, but for now it is only used by this plugin so it can live here
-
-// TimeoutPolicy is an interface for enforcing common timeout patterns
-type TimeoutPolicy time.Duration
-
-// ExecuteAction runs a function and returns an error if it hasn't returned
-// by the time specified by TimeoutPolicy
-func (tp *TimeoutPolicy) ExecuteAction(action func() error) error {
-
-	c := make(chan error)
-	go func() {
-		c <- action()
-	}()
-
-	tick := time.NewTicker(time.Duration(*tp))
-	select {
-	case <-tick.C:
-		return fmt.Errorf("ActionTimedOutError")
-	case err := <-c:
-		return err
-	}
-}

app/plugins/plugin.go

@@ -1,33 +0,0 @@
-package plugins
-
-import (
-	"cwtch.im/cwtch/event"
-	"git.openprivacy.ca/openprivacy/connectivity"
-)
-
-// PluginID is used as an ID for signaling plugin activities
-type PluginID int
-
-// These are the plugin IDs for the supplied plugins
-const (
-	CONNECTIONRETRY PluginID = iota
-	NETWORKCHECK
-)
-
-// Plugin is the interface for a plugin
-type Plugin interface {
-	Start()
-	Shutdown()
-}
-
-// Get is a plugin factory for the requested plugin
-func Get(id PluginID, bus event.Manager, acn connectivity.ACN, onion string) Plugin {
-	switch id {
-	case CONNECTIONRETRY:
-		return NewConnectionRetry(bus, onion)
-	case NETWORKCHECK:
-		return NewNetworkCheck(bus, acn)
-	}
-
-	return nil
-}

app/utils/utils.go

@@ -1,25 +0,0 @@
-package utils
-
-import (
-	app2 "cwtch.im/cwtch/app"
-	"cwtch.im/cwtch/model/attr"
-	"cwtch.im/cwtch/peer"
-	"time"
-)
-
-// WaitGetPeer is a helper function for utility apps not written using the event bus
-// Proper use of an App is to call CreatePeer and then process the NewPeer event
-// however for small utility use, this function which polls the app until the peer is created
-// may fill that usecase better
-func WaitGetPeer(app app2.Application, name string) peer.CwtchPeer {
-	for {
-		for id := range app.ListPeers() {
-			peer := app.GetPeer(id)
-			localName, _ := peer.GetAttribute(attr.GetLocalScope("name"))
-			if localName == name {
-				return peer
-			}
-		}
-		time.Sleep(100 * time.Millisecond)
-	}
-}

connectivity/tor/tormanager.go

@@ -0,0 +1,168 @@
+package tor
+
+import (
+	"errors"
+	"fmt"
+	"github.com/yawning/bulb"
+	"log"
+	"net"
+	"net/http"
+	"net/url"
+	"os"
+	"os/exec"
+	"path"
+	"strings"
+	"time"
+)
+
+// Manager checks connectivity of the Tor process used to support Cwtch
+type Manager struct {
+	socksPort   int
+	controlPort int
+	process     *exec.Cmd
+}
+
+// NewTorManager Instantiates a new connection manager, returns non-nil error if it fails to connect to a tor daemon on the given ports.
+func NewTorManager(socksPort int, controlPort int, torPath string, torrc string) (*Manager, error) {
+	torManager := new(Manager)
+	torManager.socksPort = socksPort
+	torManager.controlPort = controlPort
+
+	err := torManager.TestConnection()
+
+	if err == nil {
+		log.Printf("using existing tor proxy")
+		return torManager, nil
+	}
+
+	// try to start tor
+
+	cmd := exec.Command(torPath, "-f", torrc)
+
+	// on Android, home can be set to '/' which is not writeable
+	if os.Getenv("HOME") == "" {
+		cmd.Env = append(os.Environ(), fmt.Sprintf("HOME=%s", path.Dir(torrc)))
+	}
+
+	log.Printf("starting local tor proxy")
+	err = cmd.Start()
+	if err != nil {
+		log.Printf("starting tor failed %v", err)
+		return nil, err
+	}
+	torManager.process = cmd
+
+	// for 30 seconds check every 5 if tor is up and working
+	for i := 0; i < 6; i++ {
+		time.Sleep(time.Second * 5)
+		err = torManager.TestConnection()
+		if err == nil {
+			break
+		}
+	}
+	return torManager, err
+}
+
+type proxyStatus int
+
+const (
+	proxyStatusOK proxyStatus = iota
+	proxyStatusWrongType
+	proxyStatusCannotConnect
+	proxyStatusTimeout
+)
+
+// Shutdown kills the managed Tor Process
+func (tm *Manager) Shutdown() {
+	if tm.process != nil {
+		if err := tm.process.Process.Kill(); err != nil {
+			log.Fatal("failed to kill process: ", err)
+		}
+	}
+}
+
+// Detect whether a proxy is connectable and is a Tor proxy
+func checkTorProxy(proxyAddress string) proxyStatus {
+	// A trick to do this without making an outward connection is,
+	// paradoxically, to try to open it as http.
+	// This is documented in section 4 here: https://github.com/torproject/torspec/blob/master/socks-extensions.txt
+	client := &http.Client{Timeout: 2 * time.Second}
+	response, err := client.Get("http://" + proxyAddress + "/")
+	if err != nil {
+		switch t := err.(type) {
+		case *url.Error:
+			switch t.Err.(type) {
+			case *net.OpError: // Network-level error. Will in turn contain a os.SyscallError
+				return proxyStatusCannotConnect
+			default:
+				// http.error unfortunately not exported, need to match on string
+				// net/http: request canceled
+				if strings.Index(t.Err.Error(), "request canceled") != -1 {
+					return proxyStatusTimeout
+				}
+			}
+		}
+		// Protocol-level errors mean that http failed, so it's not Tor
+		return proxyStatusWrongType
+	}
+	defer response.Body.Close()
+	if response.Status != "501 Tor is not an HTTP Proxy" {
+		return proxyStatusWrongType
+	}
+	return proxyStatusOK
+}
+
+func proxyStatusMessage(status proxyStatus) string {
+	switch status {
+	case proxyStatusWrongType:
+		return "Proxy specified is not a Tor proxy"
+	case proxyStatusCannotConnect:
+		return "Cannot connect to Tor proxy"
+	case proxyStatusTimeout:
+		return "Proxy timeout"
+	default:
+		return "Unknown proxy error"
+	}
+}
+
+// TestConnection returns nil if both the socks and control ports of the Tor connection are active, otherwise it returns an error.
+func (tm *Manager) TestConnection() error {
+	proxyStatus := checkTorProxy(fmt.Sprintf("127.0.0.1:%d", tm.socksPort))
+	controlAddress := fmt.Sprintf("127.0.0.1:%d", tm.controlPort)
+	if proxyStatus == proxyStatusOK {
+		c, err := bulb.Dial("tcp4", controlAddress)
+		if c != nil {
+			c.Close()
+		}
+		if err == nil {
+			return nil
+		}
+		return fmt.Errorf("could not connect to Tor Control Port %v %v", tm.controlPort, err)
+	}
+	return errors.New(proxyStatusMessage(proxyStatus))
+}
+
+// GetStatus returns tor control port bootstrap-phase status info in a map
+func (tm *Manager) GetStatus() (map[string]string, error) {
+	controlAddress := fmt.Sprintf("127.0.0.1:%d", tm.controlPort)
+	c, err := bulb.Dial("tcp4", controlAddress)
+	if err != nil {
+		return nil, err
+	}
+	defer c.Close()
+	c.Request("AUTHENTICATE \"\"")
+	resp, err := c.Request("GETINFO status/bootstrap-phase")
+	if err != nil {
+		return nil, err
+	}
+
+	lines := strings.SplitN(resp.RawLines[0], " ", 5)
+	var resps = make(map[string]string)
+	for _, l := range lines {
+		kv := strings.Split(l, "=")
+		if len(kv) == 2 {
+			resps[kv[0]] = kv[1]
+		}
+	}
+	return resps, nil
+}

connectivity/tor/tormanager_test.go

@@ -0,0 +1,31 @@
+package tor
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"testing"
+)
+
+func TestTorManager(t *testing.T) {
+	tor, err := exec.LookPath("tor")
+	if err != nil {
+		t.Errorf("tor not found in PATH")
+	}
+	os.Remove("/tmp/torrc")
+	file, _ := os.Create("/tmp/torrc")
+	fmt.Fprintf(file, "SOCKSPort %d\nControlPort %d\nDataDirectory /tmp/tor\n", 10050, 10051)
+	file.Close()
+	tm, err := NewTorManager(10050, 10051, tor, "/tmp/torrc")
+	if err != nil {
+		t.Errorf("creating a new tor manager failed: %v", err)
+	} else {
+
+		tm2, err := NewTorManager(10050, 10051, tor, "/tmp/torrc")
+		if err != nil {
+			t.Errorf("creating a new tor manager failed: %v", err)
+		}
+		tm2.Shutdown() // should not noop
+	}
+	tm.Shutdown()
+}

event/bridge/goChanBridge.go

@@ -1,57 +0,0 @@
-package bridge
-
-import (
-	"cwtch.im/cwtch/event"
-	"sync"
-)
-
-type goChanBridge struct {
-	in         chan event.IPCMessage
-	out        chan event.IPCMessage
-	closedChan chan bool
-	closed     bool
-	lock       sync.Mutex
-}
-
-// MakeGoChanBridge returns a simple testing IPCBridge made from inprocess go channels
-func MakeGoChanBridge() (b1, b2 event.IPCBridge) {
-	chan1 := make(chan event.IPCMessage)
-	chan2 := make(chan event.IPCMessage)
-	closed := make(chan bool)
-
-	a := &goChanBridge{in: chan1, out: chan2, closedChan: closed, closed: false}
-	b := &goChanBridge{in: chan2, out: chan1, closedChan: closed, closed: false}
-
-	go monitor(a, b)
-
-	return a, b
-}
-
-func monitor(a, b *goChanBridge) {
-	<-a.closedChan
-	a.closed = true
-	b.closed = true
-	a.closedChan <- true
-}
-
-func (pb *goChanBridge) Read() (*event.IPCMessage, bool) {
-	message, ok := <-pb.in
-	return &message, ok
-}
-
-func (pb *goChanBridge) Write(message *event.IPCMessage) {
-	pb.lock.Lock()
-	defer pb.lock.Unlock()
-	if !pb.closed {
-		pb.out <- *message
-	}
-}
-
-func (pb *goChanBridge) Shutdown() {
-	if !pb.closed {
-		close(pb.in)
-		close(pb.out)
-		pb.closedChan <- true
-		<-pb.closedChan
-	}
-}

event/bridge/infinite_chan.go

@@ -1,72 +0,0 @@
-package bridge
-
-/* Todo: When go generics ships, refactor this and event.infiniteChannel into one */
-
-// InfiniteChannel implements the Channel interface with an infinite buffer between the input and the output.
-type InfiniteChannel struct {
-	input, output chan interface{}
-	length        chan int
-	buffer        *InfiniteQueue
-}
-
-func newInfiniteChannel() *InfiniteChannel {
-	ch := &InfiniteChannel{
-		input:  make(chan interface{}),
-		output: make(chan interface{}),
-		length: make(chan int),
-		buffer: newInfiniteQueue(),
-	}
-	go ch.infiniteBuffer()
-	return ch
-}
-
-// In returns the input channel
-func (ch *InfiniteChannel) In() chan<- interface{} {
-	return ch.input
-}
-
-// Out returns the output channel
-func (ch *InfiniteChannel) Out() <-chan interface{} {
-	return ch.output
-}
-
-// Len returns the length of items in queue
-func (ch *InfiniteChannel) Len() int {
-	return <-ch.length
-}
-
-// Close closes the InfiniteChanel
-func (ch *InfiniteChannel) Close() {
-	close(ch.input)
-}
-
-func (ch *InfiniteChannel) infiniteBuffer() {
-	var input, output chan interface{}
-	var next interface{}
-	input = ch.input
-
-	for input != nil || output != nil {
-		select {
-		case elem, open := <-input:
-			if open {
-				ch.buffer.Add(elem)
-			} else {
-				input = nil
-			}
-		case output <- next:
-			ch.buffer.Remove()
-		case ch.length <- ch.buffer.Length():
-		}
-
-		if ch.buffer.Length() > 0 {
-			output = ch.output
-			next = ch.buffer.Peek()
-		} else {
-			output = nil
-			next = nil
-		}
-	}
-
-	close(ch.output)
-	close(ch.length)
-}

event/bridge/infinite_queue.go

@@ -1,105 +0,0 @@
-package bridge
-
-/* Todo: When go generics ships, refactor this and event.infinitQueue channel into one */
-
-/*
-Package queue provides a fast, ring-buffer queue based on the version suggested by Dariusz Górecki.
-Using this instead of other, simpler, queue implementations (slice+append or linked list) provides
-substantial memory and time benefits, and fewer GC pauses.
-
-The queue implemented here is as fast as it is for an additional reason: it is *not* thread-safe.
-*/
-
-// minQueueLen is smallest capacity that queue may have.
-// Must be power of 2 for bitwise modulus: x % n == x & (n - 1).
-const minQueueLen = 16
-
-// InfiniteQueue represents a single instance of the queue data structure.
-type InfiniteQueue struct {
-	buf               []interface{}
-	head, tail, count int
-}
-
-// New constructs and returns a new Queue.
-func newInfiniteQueue() *InfiniteQueue {
-	return &InfiniteQueue{
-		buf: make([]interface{}, minQueueLen),
-	}
-}
-
-// Length returns the number of elements currently stored in the queue.
-func (q *InfiniteQueue) Length() int {
-	return q.count
-}
-
-// resizes the queue to fit exactly twice its current contents
-// this can result in shrinking if the queue is less than half-full
-func (q *InfiniteQueue) resize() {
-	newBuf := make([]interface{}, q.count<<1)
-
-	if q.tail > q.head {
-		copy(newBuf, q.buf[q.head:q.tail])
-	} else {
-		n := copy(newBuf, q.buf[q.head:])
-		copy(newBuf[n:], q.buf[:q.tail])
-	}
-
-	q.head = 0
-	q.tail = q.count
-	q.buf = newBuf
-}
-
-// Add puts an element on the end of the queue.
-func (q *InfiniteQueue) Add(elem interface{}) {
-	if q.count == len(q.buf) {
-		q.resize()
-	}
-
-	q.buf[q.tail] = elem
-	// bitwise modulus
-	q.tail = (q.tail + 1) & (len(q.buf) - 1)
-	q.count++
-}
-
-// Peek returns the element at the head of the queue. This call panics
-// if the queue is empty.
-func (q *InfiniteQueue) Peek() interface{} {
-	if q.count <= 0 {
-		panic("queue: Peek() called on empty queue")
-	}
-	return q.buf[q.head]
-}
-
-// Get returns the element at index i in the queue. If the index is
-// invalid, the call will panic. This method accepts both positive and
-// negative index values. Index 0 refers to the first element, and
-// index -1 refers to the last.
-func (q *InfiniteQueue) Get(i int) interface{} {
-	// If indexing backwards, convert to positive index.
-	if i < 0 {
-		i += q.count
-	}
-	if i < 0 || i >= q.count {
-		panic("queue: Get() called with index out of range")
-	}
-	// bitwise modulus
-	return q.buf[(q.head+i)&(len(q.buf)-1)]
-}
-
-// Remove removes and returns the element from the front of the queue. If the
-// queue is empty, the call will panic.
-func (q *InfiniteQueue) Remove() interface{} {
-	if q.count <= 0 {
-		panic("queue: Remove() called on empty queue")
-	}
-	ret := q.buf[q.head]
-	q.buf[q.head] = nil
-	// bitwise modulus
-	q.head = (q.head + 1) & (len(q.buf) - 1)
-	q.count--
-	// Resize down if buffer 1/4 full.
-	if len(q.buf) > minQueueLen && (q.count<<2) == len(q.buf) {
-		q.resize()
-	}
-	return ret
-}

event/bridge/pipeBridge-windows.go

@@ -1,19 +0,0 @@
-// +build windows
-
-package bridge
-
-import (
-	"cwtch.im/cwtch/event"
-	"log"
-)
-
-func NewPipeBridgeClient(inFilename, outFilename string) event.IPCBridge {
-	log.Fatal("Not supported on windows")
-	return nil
-}
-
-// NewPipeBridgeService returns a pipe backed IPCBridge for a service
-func NewPipeBridgeService(inFilename, outFilename string) event.IPCBridge {
-	log.Fatal("Not supported on windows")
-	return nil
-}

event/bridge/pipeBridge.go

@@ -1,357 +0,0 @@
-// +build !windows
-
-package bridge
-
-import (
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/protocol/connections"
-	"encoding/base64"
-	"encoding/binary"
-	"encoding/json"
-	"git.openprivacy.ca/openprivacy/log"
-	"os"
-	"sync"
-	"syscall"
-	"time"
-)
-
-/* pipeBridge creates a pair of named pipes
-   Needs a call to new client and service to fully successfully open
-*/
-
-const maxBufferSize = 1000
-
-const serviceName = "service"
-const clientName = "client"
-
-const syn = "SYN"
-const synack = "SYNACK"
-const ack = "ACK"
-
-type pipeBridge struct {
-	infile, outfile string
-	in, out         *os.File
-	read            chan event.IPCMessage
-	write           *InfiniteChannel
-	closedChan      chan bool
-	state           connections.ConnectionState
-	lock            sync.Mutex
-	threeShake      func() bool
-
-	// For logging / debugging purposes
-	name string
-}
-
-func newPipeBridge(inFilename, outFilename string) *pipeBridge {
-	syscall.Mkfifo(inFilename, 0600)
-	syscall.Mkfifo(outFilename, 0600)
-	pb := &pipeBridge{infile: inFilename, outfile: outFilename, state: connections.DISCONNECTED}
-	pb.read = make(chan event.IPCMessage, maxBufferSize)
-	pb.write = newInfiniteChannel() //make(chan event.IPCMessage, maxBufferSize)
-	return pb
-}
-
-// NewPipeBridgeClient returns a pipe backed IPCBridge for a client
-func NewPipeBridgeClient(inFilename, outFilename string) event.IPCBridge {
-	log.Debugf("Making new PipeBridge Client...\n")
-	pb := newPipeBridge(inFilename, outFilename)
-	pb.name = clientName
-	pb.threeShake = pb.threeShakeClient
-	go pb.connectionManager()
-
-	return pb
-}
-
-// NewPipeBridgeService returns a pipe backed IPCBridge for a service
-func NewPipeBridgeService(inFilename, outFilename string) event.IPCBridge {
-	log.Debugf("Making new PipeBridge Service...\n")
-	pb := newPipeBridge(inFilename, outFilename)
-	pb.name = serviceName
-	pb.threeShake = pb.threeShakeService
-
-	go pb.connectionManager()
-
-	log.Debugf("Successfully created new PipeBridge Service!\n")
-	return pb
-}
-
-func (pb *pipeBridge) setState(state connections.ConnectionState) {
-	pb.lock.Lock()
-	defer pb.lock.Unlock()
-
-	pb.state = state
-}
-
-func (pb *pipeBridge) getState() connections.ConnectionState {
-	pb.lock.Lock()
-	defer pb.lock.Unlock()
-
-	return pb.state
-}
-
-func (pb *pipeBridge) connectionManager() {
-	for pb.getState() != connections.KILLED {
-		log.Debugf("clientConnManager loop start init\n")
-		pb.setState(connections.CONNECTING)
-
-		var err error
-		log.Debugf("%v open file infile\n", pb.name)
-		pb.in, err = os.OpenFile(pb.infile, os.O_RDWR, 0600)
-		if err != nil {
-			pb.setState(connections.DISCONNECTED)
-			continue
-		}
-
-		log.Debugf("%v open file outfile\n", pb.name)
-		pb.out, err = os.OpenFile(pb.outfile, os.O_RDWR, 0600)
-		if err != nil {
-			pb.setState(connections.DISCONNECTED)
-			continue
-		}
-
-		log.Debugf("Successfully connected PipeBridge %v!\n", pb.name)
-
-		pb.handleConns()
-	}
-	log.Debugf("exiting %v ConnectionManager\n", pb.name)
-
-}
-
-// threeShake performs a 3way handshake sync up
-func (pb *pipeBridge) threeShakeService() bool {
-	synacked := false
-
-	for {
-		resp, err := pb.readString()
-		if err != nil {
-			return false
-		}
-
-		if string(resp) == syn {
-			if !synacked {
-				err = pb.writeString([]byte(synack))
-				if err != nil {
-					return false
-				}
-				synacked = true
-			}
-		} else if string(resp) == ack {
-			return true
-		}
-	}
-}
-
-func (pb *pipeBridge) synLoop(stop chan bool) {
-	delay := time.Duration(0)
-	for {
-		select {
-		case <-time.After(delay):
-			err := pb.writeString([]byte(syn))
-			if err != nil {
-				return
-			}
-			delay = time.Second
-		case <-stop:
-			return
-		}
-	}
-}
-
-func (pb *pipeBridge) threeShakeClient() bool {
-	stop := make(chan bool)
-	go pb.synLoop(stop)
-	for {
-		resp, err := pb.readString()
-		if err != nil {
-			return false
-		}
-
-		if string(resp) == synack {
-			stop <- true
-			err := pb.writeString([]byte(ack))
-			return err == nil
-		}
-	}
-}
-
-func (pb *pipeBridge) handleConns() {
-
-	if !pb.threeShake() {
-		pb.setState(connections.FAILED)
-		pb.closeReset()
-		return
-	}
-
-	pb.setState(connections.AUTHENTICATED)
-
-	pb.closedChan = make(chan bool, 5)
-
-	log.Debugf("handleConns authed, %v 2xgo\n", pb.name)
-
-	go pb.handleRead()
-	go pb.handleWrite()
-
-	<-pb.closedChan
-	log.Debugf("handleConns <-closedChan (%v)\n", pb.name)
-	if pb.getState() != connections.KILLED {
-		pb.setState(connections.FAILED)
-	}
-	pb.closeReset()
-	log.Debugf("handleConns done for %v, exit\n", pb.name)
-}
-
-func (pb *pipeBridge) closeReset() {
-	pb.in.Close()
-	pb.out.Close()
-	close(pb.read)
-	pb.write.Close()
-
-	if pb.getState() != connections.KILLED {
-		pb.read = make(chan event.IPCMessage, maxBufferSize)
-		pb.write = newInfiniteChannel()
-	}
-}
-
-func (pb *pipeBridge) handleWrite() {
-	log.Debugf("handleWrite() %v\n", pb.name)
-	defer log.Debugf("exiting handleWrite() %v\n", pb.name)
-
-	for {
-		select {
-		case messageInf := <-pb.write.output:
-			if messageInf == nil {
-				pb.closedChan <- true
-				return
-			}
-			message := messageInf.(event.IPCMessage)
-			if message.Message.EventType == event.EncryptedGroupMessage || message.Message.EventType == event.SendMessageToGroup || message.Message.EventType == event.NewMessageFromGroup {
-				log.Debugf("handleWrite <- message: %v %v ...\n", message.Dest, message.Message.EventType)
-			} else {
-				log.Debugf("handleWrite <- message: %v\n", message)
-			}
-			if pb.getState() == connections.AUTHENTICATED {
-				encMessage := &event.IPCMessage{Dest: message.Dest, Message: event.Event{EventType: message.Message.EventType, EventID: message.Message.EventID, Data: make(map[event.Field]string)}}
-				for k, v := range message.Message.Data {
-					encMessage.Message.Data[k] = base64.StdEncoding.EncodeToString([]byte(v))
-				}
-
-				messageJSON, _ := json.Marshal(encMessage)
-				err := pb.writeString(messageJSON)
-				if err != nil {
-					pb.closedChan <- true
-					return
-				}
-			} else {
-				return
-			}
-		}
-	}
-}
-
-func (pb *pipeBridge) handleRead() {
-	log.Debugf("handleRead() %v\n", pb.name)
-	defer log.Debugf("exiting handleRead() %v", pb.name)
-
-	for {
-		log.Debugf("Waiting to handleRead()...\n")
-
-		buffer, err := pb.readString()
-		if err != nil {
-			pb.closedChan <- true
-			return
-		}
-
-		var message event.IPCMessage
-		err = json.Unmarshal(buffer, &message)
-		if err != nil {
-			log.Errorf("Read error: '%v', value: '%v'", err, buffer)
-			pb.closedChan <- true
-			return // probably new connection trying to initialize
-		}
-		for k, v := range message.Message.Data {
-			val, _ := base64.StdEncoding.DecodeString(v)
-			message.Message.Data[k] = string(val)
-		}
-		if message.Message.EventType == event.EncryptedGroupMessage || message.Message.EventType == event.SendMessageToGroup || message.Message.EventType == event.NewMessageFromGroup {
-			log.Debugf("handleRead read<-: %v %v ...\n", message.Dest, message.Message.EventType)
-		} else {
-			log.Debugf("handleRead read<-: %v\n", message)
-		}
-		pb.read <- message
-		log.Debugf("handleRead wrote\n")
-	}
-}
-
-func (pb *pipeBridge) Read() (*event.IPCMessage, bool) {
-	log.Debugf("Read() %v...\n", pb.name)
-	var ok = false
-	var message event.IPCMessage
-	for !ok && pb.getState() != connections.KILLED {
-		message, ok = <-pb.read
-		if message.Message.EventType == event.EncryptedGroupMessage || message.Message.EventType == event.SendMessageToGroup || message.Message.EventType == event.NewMessageFromGroup {
-			log.Debugf("Read %v: %v %v ...\n", pb.name, message.Dest, message.Message.EventType)
-		} else {
-			log.Debugf("Read %v: %v\n", pb.name, message)
-		}
-	}
-	return &message, pb.getState() != connections.KILLED
-}
-
-func (pb *pipeBridge) Write(message *event.IPCMessage) {
-	if message.Message.EventType == event.EncryptedGroupMessage || message.Message.EventType == event.SendMessageToGroup || message.Message.EventType == event.NewMessageFromGroup {
-		log.Debugf("Write %v: %v %v ...\n", pb.name, message.Dest, message.Message.EventType)
-	} else {
-		log.Debugf("Write %v: %v\n", pb.name, message)
-	}
-	pb.write.input <- *message
-	log.Debugf("Wrote\n")
-}
-
-func (pb *pipeBridge) Shutdown() {
-	log.Debugf("pb.Shutdown() for %v currently in state: %v\n", pb.name, connections.ConnectionStateName[pb.getState()])
-	pb.state = connections.KILLED
-	pb.closedChan <- true
-	log.Debugf("Done Shutdown for %v\n", pb.name)
-}
-
-func (pb *pipeBridge) writeString(message []byte) error {
-	size := make([]byte, 2)
-	binary.LittleEndian.PutUint16(size, uint16(len(message)))
-	pb.out.Write(size)
-
-	for pos := 0; pos < len(message); {
-		n, err := pb.out.Write(message[pos:])
-		if err != nil {
-			log.Errorf("Writing out on pipeBridge: %v\n", err)
-			return err
-		}
-		pos += n
-	}
-	return nil
-}
-
-func (pb *pipeBridge) readString() ([]byte, error) {
-	var n int
-	size := make([]byte, 2)
-	var err error
-
-	n, err = pb.in.Read(size)
-	if err != nil || n != 2 {
-		log.Errorf("Could not read len int from stream: %v\n", err)
-		return nil, err
-	}
-
-	n = int(binary.LittleEndian.Uint16(size))
-	pos := 0
-	buffer := make([]byte, n)
-	for n > 0 {
-		m, err := pb.in.Read(buffer[pos:])
-		if err != nil {
-			log.Errorf("Reading into buffer from pipe: %v\n", err)
-			return nil, err
-		}
-		n -= m
-		pos += m
-	}
-	return buffer, nil
-}

event/bridge/pipeBridge_test.go

@@ -1,131 +0,0 @@
-package bridge
-
-import (
-	"cwtch.im/cwtch/event"
-	"git.openprivacy.ca/openprivacy/log"
-	"os"
-	"testing"
-	"time"
-)
-
-var (
-	clientPipe  = "./client"
-	servicePipe = "./service"
-)
-
-func clientHelper(t *testing.T, in, out string, messageOrig *event.IPCMessage, done chan bool) {
-	client := NewPipeBridgeClient(in, out)
-
-	messageAfter, ok := client.Read()
-	if !ok {
-		t.Errorf("Reading from client IPCBridge failed")
-		done <- true
-		return
-	}
-
-	if messageOrig.Dest != messageAfter.Dest {
-		t.Errorf("Dest's value differs expected: %v actaul: %v", messageOrig.Dest, messageAfter.Dest)
-	}
-
-	if messageOrig.Message.EventType != messageAfter.Message.EventType {
-		t.Errorf("EventTypes's value differs expected: %v actaul: %v", messageOrig.Message.EventType, messageAfter.Message.EventType)
-	}
-
-	if messageOrig.Message.Data[event.Identity] != messageAfter.Message.Data[event.Identity] {
-		t.Errorf("Data[Identity]'s value differs expected: %v actaul: %v", messageOrig.Message.Data[event.Identity], messageAfter.Message.Data[event.Identity])
-	}
-
-	done <- true
-}
-
-func serviceHelper(t *testing.T, in, out string, messageOrig *event.IPCMessage, done chan bool) {
-	service := NewPipeBridgeService(in, out)
-
-	service.Write(messageOrig)
-
-	done <- true
-}
-
-func TestPipeBridge(t *testing.T) {
-	os.Remove(servicePipe)
-	os.Remove(clientPipe)
-
-	messageOrig := &event.IPCMessage{Dest: "ABC", Message: event.NewEventList(event.NewPeer, event.Identity, "It is I")}
-	serviceDone := make(chan bool)
-	clientDone := make(chan bool)
-
-	go clientHelper(t, clientPipe, servicePipe, messageOrig, clientDone)
-	go serviceHelper(t, servicePipe, clientPipe, messageOrig, serviceDone)
-
-	<-serviceDone
-	<-clientDone
-}
-
-func restartingClient(t *testing.T, in, out string, done chan bool) {
-	client := NewPipeBridgeClient(in, out)
-
-	message1 := &event.IPCMessage{Dest: "ABC", Message: event.NewEventList(event.NewPeer)}
-	log.Infoln("client writing message 1")
-	client.Write(message1)
-
-	time.Sleep(100 * time.Millisecond)
-	log.Infoln("client shutdown")
-	client.Shutdown()
-
-	log.Infoln("client new client")
-	client = NewPipeBridgeClient(in, out)
-	message2 := &event.IPCMessage{Dest: "ABC", Message: event.NewEventList(event.DeleteContact)}
-	log.Infoln("client2 write message2")
-	client.Write(message2)
-
-	done <- true
-}
-
-func stableService(t *testing.T, in, out string, done chan bool) {
-	service := NewPipeBridgeService(in, out)
-
-	log.Infoln("service wait read 1")
-	message1, ok := service.Read()
-	log.Infof("service read 1 %v ok:%v\n", message1, ok)
-	if !ok {
-		t.Errorf("Reading from client IPCBridge 1st time failed")
-		done <- true
-		return
-	}
-	if message1.Message.EventType != event.NewPeer {
-		t.Errorf("Wrong message received, expected NewPeer\n")
-		done <- true
-		return
-	}
-
-	log.Infoln("service wait read 2")
-	message2, ok := service.Read()
-	log.Infof("service read 2 got %v ok:%v\n", message2, ok)
-	if !ok {
-		t.Errorf("Reading from client IPCBridge 2nd time failed")
-		done <- true
-		return
-	}
-	if message2.Message.EventType != event.DeleteContact {
-		t.Errorf("Wrong message received, expected DeleteContact, got %v\n", message2)
-		done <- true
-		return
-	}
-
-	done <- true
-}
-
-func TestReconnect(t *testing.T) {
-	log.Infoln("TestReconnect")
-	os.Remove(servicePipe)
-	os.Remove(clientPipe)
-
-	serviceDone := make(chan bool)
-	clientDone := make(chan bool)
-
-	go restartingClient(t, clientPipe, servicePipe, clientDone)
-	go stableService(t, servicePipe, clientPipe, serviceDone)
-
-	<-serviceDone
-	<-clientDone
-}

event/common.go

@@ -1,351 +0,0 @@
-package event
-
-// Type captures the definition of many common Cwtch application events
-type Type string
-
-// Defining Common Event Types
-const (
-	StatusRequest        = Type("StatusRequest")
-	ProtocolEngineStatus = Type("ProtocolEngineStatus")
-
-	// Attempt to outbound peer with a given remote peer
-	// attributes:
-	// RemotePeer: [eg "chpr7qm6op5vfcg2pi4vllco3h6aa7exexc4rqwnlupqhoogx2zgd6qd"
-	PeerRequest = Type("PeerRequest")
-
-	// RetryPeerRequest
-	// Identical to PeerRequest, but allows Engine to make decisions regarding blocked peers
-	// attributes:
-	// RemotePeer: [eg "chpr7qm6op5vfcg2pi4vllco3h6aa7exexc4rqwnlupqhoogx2zgd6qd"
-	RetryPeerRequest = Type("RetryPeerRequest")
-
-	// RetryServerRequest
-	// Asks CwtchPeer to retry a server connection...
-	// GroupServer: [eg "chpr7qm6op5vfcg2pi4vllco3h6aa7exexc4rqwnlupqhoogx2zgd6qd"
-	RetryServerRequest = Type("RetryServerRequest")
-
-	// RemotePeer
-	// Authorization(model.peer.Auth_...)
-	SetPeerAuthorization = Type("UpdatePeerAuthorization")
-
-	// Turn on/off blocking of unknown peers (if peers aren't in the contact list then they will be autoblocked
-	BlockUnknownPeers = Type("BlockUnknownPeers")
-	AllowUnknownPeers = Type("AllowUnknownPeers")
-
-	// GroupServer
-	JoinServer = Type("JoinServer")
-
-	// attributes GroupServer - the onion of the server to leave
-	LeaveServer = Type("LeaveServer")
-
-	ProtocolEngineStartListen = Type("ProtocolEngineStartListen")
-	ProtocolEngineStopped     = Type("ProtocolEngineStopped")
-
-	InvitePeerToGroup = Type("InvitePeerToGroup")
-
-	// a group invite has been received from a remote peer
-	// attributes:
-	// TimestampReceived [eg time.Now().Format(time.RFC3339Nano)]
-	// RemotePeer: [eg "chpr7qm6op5vfcg2pi4vllco3h6aa7exexc4rqwnlupqhoogx2zgd6qd"]
-	// GroupInvite: [eg "torv3....."]
-	// Imported
-	NewGroupInvite = Type("NewGroupInvite")
-
-	// Inform the UI about a new group
-	// GroupID: groupID (allows them to fetch from the peer)
-	NewGroup = Type("NewGroup")
-
-	// GroupID
-	AcceptGroupInvite = Type("AcceptGroupInvite")
-	RejectGroupInvite = Type("RejectGroupInvite")
-
-	SendMessageToGroup = Type("SendMessagetoGroup")
-
-	//Ciphertext, Signature:
-	EncryptedGroupMessage = Type("EncryptedGroupMessage")
-	//TimestampReceived, TimestampSent, Data(Message), GroupID, Signature, PreviousSignature, RemotePeer
-	NewMessageFromGroup = Type("NewMessageFromGroup")
-
-	// Sent if a Group Key is detected as being used outside of expected parameters (e.g. with tampered signatures)
-	// GroupID: The ID of the Group that is presumed compromised
-	GroupCompromised = Type("GroupCompromised")
-
-	// an error was encountered trying to send a particular Message to a group
-	// attributes:
-	// GroupServer: The server the Message was sent to
-	// Signature: The signature of the Message that failed to send
-	// Error: string describing the error
-	SendMessageToGroupError = Type("SendMessageToGroupError")
-
-	SendMessageToPeer  = Type("SendMessageToPeer")
-	NewMessageFromPeer = Type("NewMessageFromPeer")
-
-	// RemotePeer, scope, path
-	NewGetValMessageFromPeer = Type("NewGetValMessageFromPeer")
-
-	// RemotePeer, val, exists
-	SendRetValMessageToPeer = Type("SendRetValMessageToPeer")
-
-	// RemotePeer, scope, val
-	SendGetValMessageToPeer = Type("SendGetValMessageToPeer")
-
-	// RemotePeer, scope, path, data, exists
-	NewRetValMessageFromPeer = Type("NewRetValMessageFromPeer")
-
-	// Peer acknowledges a previously sent message
-	// attributes
-	// EventID: The original event id that the peer is responding too.
-	// RemotePeer: The peer associated with the acknowledgement
-	PeerAcknowledgement = Type("PeerAcknowledgement")
-
-	// Like PeerAcknowledgement but with message index instead of event ID
-	// attributes
-	// Index: The original index of the message that the peer is responding too.
-	// RemotePeer: The peer associated with the acknowledgement
-	IndexedAcknowledgement = Type("IndexedAcknowledgement")
-
-	// Like PeerAcknowledgement but with message index instead of event ID
-	// attributes
-	// Index: The original index of the message that the peer is responding too.
-	// RemotePeer: The peer associated with the acknowledgement
-	IndexedFailure = Type("IndexedFailure")
-
-	// UpdateMessageFlags will change the flags associated with a given message.
-	// Handle
-	// Message Index
-	// Flags
-	UpdateMessageFlags = Type("UpdateMessageFlags")
-
-	// attributes:
-	// RemotePeer: [eg "chpr7qm6op5vfcg2pi4vllco3h6aa7exexc4rqwnlupqhoogx2zgd6qd"]
-	// Error: string describing the error
-	SendMessageToPeerError = Type("SendMessageToPeerError")
-
-	// REQUESTS TO STORAGE ENGINE
-
-	// a peer contact has been added
-	// attributes:
-	// RemotePeer [eg ""]
-	// Authorization
-	PeerCreated = Type("PeerCreated")
-
-	// Password, NewPassword
-	ChangePassword = Type("ChangePassword")
-
-	// Error(err), EventID
-	ChangePasswordError = Type("ChangePasswordError")
-
-	// EventID
-	ChangePasswordSuccess = Type("ChangePasswordSuccess")
-
-	// a group has been successfully added or newly created
-	// attributes:
-	// Data [serialized *model.Group]
-	GroupCreated = Type("GroupCreated")
-
-	// RemotePeer
-	DeleteContact = Type("DeleteContact")
-
-	// GroupID
-	DeleteGroup = Type("DeleteGroup")
-
-	// change the .Name attribute of a profile (careful - this is not a custom attribute. it is used in the underlying protocol during handshakes!)
-	// attributes:
-	// ProfileName [eg "erinn"]
-	SetProfileName = Type("SetProfileName")
-
-	// request to store a profile-wide attribute (good for e.g. per-profile settings like theme prefs)
-	// attributes:
-	// Key [eg "fontcolor"]
-	// Data [eg "red"]
-	SetAttribute = Type("SetAttribute")
-
-	// request to store a per-contact attribute (e.g. display names for a peer)
-	// attributes:
-	// RemotePeer [eg ""]
-	// Key [eg "nick"]
-	// Data [eg "erinn"]
-	SetPeerAttribute = Type("SetPeerAttribute")
-
-	// request to store a per-cwtch-group attribute (e.g. display name for a group)
-	// attributes:
-	// GroupID [eg ""]
-	// Key [eg "nick"]
-	// Data [eg "open privacy board"]
-	SetGroupAttribute = Type("SetGroupAttribute")
-
-	// PeerStateChange servers as a new incoming connection message as well, and can/is consumed by frontends to alert of new p2p connections
-	// RemotePeer
-	// ConnectionState
-	PeerStateChange = Type("PeerStateChange")
-
-	// GroupServer
-	// ConnectionState
-	ServerStateChange = Type("ServerStateChange")
-
-	/***** Application client / service messages *****/
-
-	// ProfileName, Password, Data(tag)
-	CreatePeer = Type("CreatePeer")
-
-	// app: Identity(onion), Created(bool)
-	// service -> client: Identity(localId), Password, [Status(new/default=blank || from reload='running')], Created(bool)
-	NewPeer = Type("NewPeer")
-
-	// Identity(onion)
-	DeletePeer = Type("DeletePeer")
-
-	// Identity(onion), Data(pluginID)
-	AddPeerPlugin = Type("AddPeerPlugin")
-
-	// Password
-	LoadProfiles = Type("LoadProfiles")
-
-	// Client has reloaded, triggers NewPeer s then ReloadDone
-	ReloadClient = Type("ReloadClient")
-
-	ReloadDone = Type("ReloadDone")
-
-	// Identity - Ask service to resend all connection states
-	ReloadPeer = Type("ReloadPeer")
-
-	// Identity(onion)
-	ShutdownPeer = Type("ShutdownPeer")
-
-	Shutdown = Type("Shutdown")
-
-	// Error(err)
-	// Error creating peer
-	PeerError = Type("PeerError")
-
-	// Error(err)
-	AppError = Type("AppError")
-
-	GetACNStatus  = Type("GetACNStatus")
-	GetACNVersion = Type("GetACNVersion")
-
-	// Progress, Status
-	ACNStatus = Type("ACNStatus")
-
-	// Data
-	ACNVersion = Type("ACNVersion")
-
-	// Network Status
-	// Status: Success || Error
-	// Error: Description of the Error
-	// Onion: the local onion we attempt to check
-	NetworkStatus = Type("NetworkError")
-
-	// Notify the UI that a Server has been added
-	// Onion = Server Onion
-	ServerCreated = Type("ServerAdded")
-
-	// For debugging. Allows test to emit a Syn and get a response Ack(eventID) when the subsystem is done processing a queue
-	Syn = Type("Syn")
-	Ack = Type("Ack")
-)
-
-// Field defines common event attributes
-type Field string
-
-// Defining Common Field Types
-const (
-
-	// A peers local onion address
-	Onion = Field("Onion")
-
-	RemotePeer        = Field("RemotePeer")
-	Ciphertext        = Field("Ciphertext")
-	Signature         = Field("Signature")
-	PreviousSignature = Field("PreviousSignature")
-	TimestampSent     = Field("TimestampSent")
-	TimestampReceived = Field("TimestampReceived")
-
-	Identity = Field("Identity")
-
-	GroupID          = Field("GroupID")
-	GroupServer      = Field("GroupServer")
-	ServerTokenY     = Field("ServerTokenY")
-	ServerTokenOnion = Field("ServerTokenOnion")
-	GroupInvite      = Field("GroupInvite")
-
-	ProfileName = Field("ProfileName")
-	Password    = Field("Password")
-	NewPassword = Field("NewPassword")
-
-	Created = Field("Created")
-
-	ConnectionState = Field("ConnectionState")
-
-	Key    = Field("Key")
-	Data   = Field("Data")
-	Scope  = Field("Scope")
-	Path   = Field("Path")
-	Exists = Field("Exists")
-
-	Salt = Field("Salt")
-
-	Error = Field("Error")
-
-	Progress     = Field("Progress")
-	Status       = Field("Status")
-	EventID      = Field("EventID")
-	EventContext = Field("EventContext")
-	Index        = Field("Index")
-
-	// Handle denotes a contact handle of any type.
-	Handle = Field("Handle")
-
-	// Flags denotes a set of message flags
-	Flags = Field("Flags")
-
-	Authorization = Field("Authorization")
-
-	KeyBundle = Field("KeyBundle")
-
-	// Indicate whether an event was triggered by a user import
-	Imported = Field("Imported")
-
-	Source = Field("Source")
-)
-
-// Defining Common errors
-const (
-	AppErrLoaded0 = "Loaded 0 profiles"
-)
-
-// Values to be suplied in event.NewPeer for Status
-const (
-	StorageRunning = "running"
-	StorageNew     = "new"
-)
-
-// Defining Protocol Contexts
-const (
-	ContextAck    = "im.cwtch.acknowledgement"
-	ContextInvite = "im.cwtch.invite"
-	ContextRaw    = "im.cwtch.raw"
-	ContextGetVal = "im.cwtch.getVal"
-	ContextRetVal = "im.cwtch.retVal"
-)
-
-// Define Default Attribute Keys
-const (
-	SaveHistoryKey = "SavePeerHistory"
-)
-
-// Define Default Attribute Values
-const (
-	// Save History has 3 distinct states. By default we don't save history (DefaultDeleteHistory), if the peer confirms this
-	// we change to DeleteHistoryConfirmed, if they confirm they want to save then this becomes SaveHistoryConfirmed
-	// We use this distinction between default and confirmed to drive UI
-	DeleteHistoryDefault   = "DefaultDeleteHistory"
-	SaveHistoryConfirmed   = "SaveHistory"
-	DeleteHistoryConfirmed = "DeleteHistoryConfirmed"
-)
-
-// Bool strings
-const (
-	True  = "true"
-	False = "false"
-)

event/eventQueue.go

@@ -1,112 +0,0 @@
-package event
-
-import (
-	"sync"
-)
-
-type queue struct {
-	infChan infiniteChannel
-	lock    sync.Mutex
-	closed  bool
-}
-
-type simpleQueue struct {
-	eventChannel chan Event
-	lock         sync.Mutex
-	closed       bool
-}
-
-// Queue is a wrapper around a channel for handling Events in a consistent way across subsystems.
-// The expectation is that each subsystem in Cwtch will manage a given an event.Queue fed from
-// the event.Manager.
-type Queue interface {
-	Publish(event Event)
-	Next() Event
-	Shutdown()
-	OutChan() <-chan Event
-	Len() int
-}
-
-// NewQueue initializes an event.Queue
-func NewQueue() Queue {
-	queue := &queue{infChan: *newInfiniteChannel()}
-	return queue
-}
-
-// NewSimpleQueue initializes an event.Queue of the given buffer size.
-func NewSimpleQueue(buffer int) Queue {
-	queue := new(simpleQueue)
-	queue.eventChannel = make(chan Event, buffer)
-	return queue
-}
-
-func (sq *simpleQueue) inChan() chan<- Event {
-	return sq.eventChannel
-}
-
-func (sq *simpleQueue) OutChan() <-chan Event {
-	return sq.eventChannel
-}
-
-// Backlog returns the length of the queue backlog
-func (sq *simpleQueue) Len() int {
-	return len(sq.eventChannel)
-}
-
-// Next returns the next available event from the front of the queue
-func (sq *simpleQueue) Next() Event {
-	event := <-sq.eventChannel
-	return event
-}
-
-// Shutdown closes our eventChannel
-func (sq *simpleQueue) Shutdown() {
-	sq.lock.Lock()
-	sq.closed = true
-	close(sq.eventChannel)
-	sq.lock.Unlock()
-}
-
-// Shutdown closes our eventChannel
-func (sq *simpleQueue) Publish(event Event) {
-	sq.lock.Lock()
-	if !sq.closed {
-		sq.inChan() <- event
-	}
-	sq.lock.Unlock()
-}
-
-func (iq *queue) inChan() chan<- Event {
-	return iq.infChan.In()
-}
-
-func (iq *queue) OutChan() <-chan Event {
-	return iq.infChan.Out()
-}
-
-// Out returns the next available event from the front of the queue
-func (iq *queue) Next() Event {
-	event := <-iq.infChan.Out()
-	return event
-}
-
-func (iq *queue) Len() int {
-	return iq.infChan.Len()
-}
-
-// Shutdown closes our eventChannel
-func (iq *queue) Shutdown() {
-	iq.lock.Lock()
-	iq.closed = true
-	iq.infChan.Close()
-	iq.lock.Unlock()
-
-}
-
-func (iq *queue) Publish(event Event) {
-	iq.lock.Lock()
-	if !iq.closed {
-		iq.inChan() <- event
-	}
-	iq.lock.Unlock()
-}

event/eventmanager.go

@@ -1,175 +0,0 @@
-package event
-
-import (
-	"crypto/rand"
-	"encoding/json"
-	"fmt"
-	"git.openprivacy.ca/openprivacy/log"
-	"math"
-	"math/big"
-	"os"
-	"runtime"
-	"strings"
-	"sync"
-)
-
-// Event is the core struct type passed around between various subsystems. Events consist of a type which can be
-// filtered on, an event ID for tracing and a map of Fields to string values.
-type Event struct {
-	EventType Type
-	EventID   string
-	Data      map[Field]string
-}
-
-// GetRandNumber is a helper function which returns a random integer, this is
-// currently mostly used to generate messageids
-func GetRandNumber() *big.Int {
-	num, err := rand.Int(rand.Reader, big.NewInt(math.MaxUint32))
-	// If we can't generate random numbers then panicking is probably
-	// the best option.
-	if err != nil {
-		panic(err.Error())
-	}
-	return num
-}
-
-// NewEvent creates a new event object with a unique ID and the given type and data.
-func NewEvent(eventType Type, data map[Field]string) Event {
-	return Event{EventType: eventType, EventID: GetRandNumber().String(), Data: data}
-}
-
-// NewEventList creates a new event object with a unique ID and the given type and data supplied in a list format and composed into a map of Type:string
-func NewEventList(eventType Type, args ...interface{}) Event {
-	data := map[Field]string{}
-	for i := 0; i < len(args); i += 2 {
-		key, kok := args[i].(Field)
-		val, vok := args[i+1].(string)
-		if kok && vok {
-			data[key] = val
-		}
-	}
-	return Event{EventType: eventType, EventID: GetRandNumber().String(), Data: data}
-}
-
-// Manager is an Event Bus which allows subsystems to subscribe to certain EventTypes and publish others.
-type manager struct {
-	subscribers map[Type][]Queue
-	events      chan []byte
-	mapMutex    sync.Mutex
-	internal    chan bool
-	closed      bool
-	trace       bool
-}
-
-// Manager is an interface for an event bus
-// FIXME this interface lends itself to race conditions around channels
-type Manager interface {
-	Subscribe(Type, Queue)
-	Publish(Event)
-	PublishLocal(Event)
-	Shutdown()
-}
-
-// NewEventManager returns an initialized EventManager
-func NewEventManager() Manager {
-	em := &manager{}
-	em.initialize()
-	return em
-}
-
-// Initialize sets up the Manager.
-func (em *manager) initialize() {
-	em.subscribers = make(map[Type][]Queue)
-	em.events = make(chan []byte)
-	em.internal = make(chan bool)
-	em.closed = false
-
-	_, em.trace = os.LookupEnv("CWTCH_EVENT_SOURCE")
-
-	go em.eventBus()
-}
-
-// Subscribe takes an eventType and an Channel and associates them in the eventBus. All future events of that type
-// will be sent to the eventChannel.
-func (em *manager) Subscribe(eventType Type, queue Queue) {
-	em.mapMutex.Lock()
-	defer em.mapMutex.Unlock()
-	em.subscribers[eventType] = append(em.subscribers[eventType], queue)
-}
-
-// Publish takes an Event and sends it to the internal eventBus where it is distributed to all Subscribers
-func (em *manager) Publish(event Event) {
-	if event.EventType != "" && !em.closed {
-
-		// Debug Events for Tracing, locked behind an environment variable
-		// for now.
-		if em.trace {
-			pc, _, _, _ := runtime.Caller(1)
-			funcName := runtime.FuncForPC(pc).Name()
-			lastSlash := strings.LastIndexByte(funcName, '/')
-			if lastSlash < 0 {
-				lastSlash = 0
-			}
-			lastDot := strings.LastIndexByte(funcName[lastSlash:], '.') + lastSlash
-			event.Data[Source] = fmt.Sprintf("%v.%v", funcName[:lastDot], funcName[lastDot+1:])
-		}
-
-		// Deep Copy the Event...
-		eventJSON, err := json.Marshal(event)
-		if err != nil {
-			log.Errorf("Error serializing event: %v", event)
-		}
-		em.events <- eventJSON
-	}
-}
-
-// Publish an event only locally, not going over an IPC bridge if there is one
-func (em *manager) PublishLocal(event Event) {
-	em.Publish(event)
-}
-
-// eventBus is an internal function that is used to distribute events to all subscribers
-func (em *manager) eventBus() {
-	for {
-		eventJSON := <-em.events
-
-		// In the case on an empty event. Teardown the Queue
-		if len(eventJSON) == 0 {
-			log.Errorf("Received zero length event")
-			break
-		}
-
-		var event Event
-		err := json.Unmarshal(eventJSON, &event)
-
-		if err != nil {
-			log.Errorf("Error on Deep Copy: %v %v", eventJSON, err)
-		}
-
-		// maps aren't thread safe
-		em.mapMutex.Lock()
-		subscribers := em.subscribers[event.EventType]
-		em.mapMutex.Unlock()
-
-		// Send the event to any subscribers to that event type
-		for _, subscriber := range subscribers {
-			// Deep Copy for Each Subscriber
-			var eventCopy Event
-			json.Unmarshal(eventJSON, &eventCopy)
-			subscriber.Publish(eventCopy)
-		}
-	}
-
-	// We are about to exit the eventbus thread, fire off an event internally
-	em.internal <- true
-}
-
-// Shutdown triggers, and waits for, the internal eventBus goroutine to finish
-func (em *manager) Shutdown() {
-	em.events <- []byte{}
-	em.closed = true
-	// wait for eventBus to finish
-	<-em.internal
-	close(em.events)
-	close(em.internal)
-}

event/eventmanager_test.go

@@ -1,104 +0,0 @@
-package event
-
-import (
-	"git.openprivacy.ca/openprivacy/log"
-	"sync"
-	"testing"
-	"time"
-)
-
-// Most basic Manager Test, Initialize, Subscribe, Publish, Receive
-func TestEventManager(t *testing.T) {
-	eventManager := NewEventManager()
-
-	// We need to make this buffer at least 1, otherwise we will log an error!
-	testChan := make(chan Event, 1)
-	simpleQueue := &simpleQueue{testChan, sync.Mutex{}, false}
-	eventManager.Subscribe("TEST", simpleQueue)
-	eventManager.Publish(Event{EventType: "TEST", Data: map[Field]string{"Value": "Hello World"}})
-
-	event := <-testChan
-	if event.EventType == "TEST" && event.Data["Value"] == "Hello World" {
-
-	} else {
-		t.Errorf("Received Invalid Event")
-	}
-
-	eventManager.Shutdown()
-}
-
-// Most basic Manager Test, Initialize, Subscribe, Publish, Receive
-func TestEventManagerOverflow(t *testing.T) {
-	eventManager := NewEventManager()
-
-	// Explicitly setting this to 0 log an error!
-	testChan := make(chan Event)
-	simpleQueue := &simpleQueue{testChan, sync.Mutex{}, false}
-	eventManager.Subscribe("TEST", simpleQueue)
-	eventManager.Publish(Event{EventType: "TEST"})
-}
-
-func TestEventManagerMultiple(t *testing.T) {
-	log.SetLevel(log.LevelDebug)
-	eventManager := NewEventManager()
-
-	groupEventQueue := NewQueue()
-	peerEventQueue := NewQueue()
-	allEventQueue := NewQueue()
-
-	eventManager.Subscribe("PeerEvent", peerEventQueue)
-	eventManager.Subscribe("GroupEvent", groupEventQueue)
-	eventManager.Subscribe("PeerEvent", allEventQueue)
-	eventManager.Subscribe("GroupEvent", allEventQueue)
-	eventManager.Subscribe("ErrorEvent", allEventQueue)
-
-	eventManager.Publish(Event{EventType: "PeerEvent", Data: map[Field]string{"Value": "Hello World Peer"}})
-	eventManager.Publish(Event{EventType: "GroupEvent", Data: map[Field]string{"Value": "Hello World Group"}})
-	eventManager.Publish(Event{EventType: "PeerEvent", Data: map[Field]string{"Value": "Hello World Peer"}})
-	eventManager.Publish(Event{EventType: "ErrorEvent", Data: map[Field]string{"Value": "Hello World Error"}})
-	eventManager.Publish(Event{EventType: "NobodyIsSubscribedToThisEvent", Data: map[Field]string{"Value": "Noone should see this!"}})
-
-	assertLength := func(len int, expected int, label string) {
-		if len != expected {
-			t.Errorf("Expected %s to be %v was %v", label, expected, len)
-		}
-	}
-
-	time.Sleep(time.Second)
-
-	assertLength(groupEventQueue.Len(), 1, "Group Event Queue Length")
-	assertLength(peerEventQueue.Len(), 2, "Peer Event Queue Length")
-	assertLength(allEventQueue.Len(), 4, "All Event Queue Length")
-
-	checkEvent := func(eventType Type, expected Type, label string) {
-		if eventType != expected {
-			t.Errorf("Expected %s to be %v was %v", label, expected, eventType)
-		}
-	}
-
-	event := groupEventQueue.Next()
-	checkEvent(event.EventType, "GroupEvent", "First Group Event")
-
-	event = peerEventQueue.Next()
-	checkEvent(event.EventType, "PeerEvent", "First Peer Event")
-	event = peerEventQueue.Next()
-	checkEvent(event.EventType, "PeerEvent", "Second Peer Event")
-
-	event = allEventQueue.Next()
-	checkEvent(event.EventType, "PeerEvent", "ALL: First Peer Event")
-	event = allEventQueue.Next()
-	checkEvent(event.EventType, "GroupEvent", "ALL: First Group Event")
-	event = allEventQueue.Next()
-	checkEvent(event.EventType, "PeerEvent", "ALL: Second Peer Event")
-	event = allEventQueue.Next()
-	checkEvent(event.EventType, "ErrorEvent", "ALL: First Error Event")
-
-	eventManager.Shutdown()
-	groupEventQueue.Shutdown()
-	peerEventQueue.Shutdown()
-	allEventQueue.Shutdown()
-
-	// Reading from a closed queue should result in an instant return and an empty event
-	event = groupEventQueue.Next()
-	checkEvent(event.EventType, "", "Test Next() on Empty Queue")
-}

event/eventmanageripc.go

@@ -1,38 +0,0 @@
-package event
-
-type ipcManager struct {
-	manager Manager
-
-	onion     string
-	ipcBridge IPCBridge
-}
-
-// NewIPCEventManager returns an EvenetManager that also pipes events over and supplied IPCBridge
-func NewIPCEventManager(bridge IPCBridge, onion string) Manager {
-	em := &ipcManager{onion: onion, ipcBridge: bridge, manager: NewEventManager()}
-	return em
-}
-
-// IPCEventManagerFrom returns an IPCEventManger from the supplied manager and IPCBridge
-func IPCEventManagerFrom(bridge IPCBridge, onion string, manager Manager) Manager {
-	em := &ipcManager{onion: onion, ipcBridge: bridge, manager: manager}
-	return em
-}
-
-func (ipcm *ipcManager) Publish(ev Event) {
-	ipcm.manager.Publish(ev)
-	message := &IPCMessage{Dest: ipcm.onion, Message: ev}
-	ipcm.ipcBridge.Write(message)
-}
-
-func (ipcm *ipcManager) PublishLocal(ev Event) {
-	ipcm.manager.Publish(ev)
-}
-
-func (ipcm *ipcManager) Subscribe(eventType Type, queue Queue) {
-	ipcm.manager.Subscribe(eventType, queue)
-}
-
-func (ipcm *ipcManager) Shutdown() {
-	ipcm.manager.Shutdown()
-}

event/infinitechannel.go

@@ -1,72 +0,0 @@
-package event
-
-/*
-This package is taken from https://github.com/eapache/channels
-as per their suggestion we are not importing the entire package and instead cherry picking and adapting what is needed
-
-It is covered by the MIT License https://github.com/eapache/channels/blob/master/LICENSE
-*/
-
-// infiniteChannel implements the Channel interface with an infinite buffer between the input and the output.
-type infiniteChannel struct {
-	input, output chan Event
-	length        chan int
-	buffer        *infiniteQueue
-}
-
-func newInfiniteChannel() *infiniteChannel {
-	ch := &infiniteChannel{
-		input:  make(chan Event),
-		output: make(chan Event),
-		length: make(chan int),
-		buffer: newInfinitQueue(),
-	}
-	go ch.infiniteBuffer()
-	return ch
-}
-func (ch *infiniteChannel) In() chan<- Event {
-	return ch.input
-}
-
-func (ch *infiniteChannel) Out() <-chan Event {
-	return ch.output
-}
-
-func (ch *infiniteChannel) Len() int {
-	return <-ch.length
-}
-
-func (ch *infiniteChannel) Close() {
-	close(ch.input)
-}
-
-func (ch *infiniteChannel) infiniteBuffer() {
-	var input, output chan Event
-	var next Event
-	input = ch.input
-
-	for input != nil || output != nil {
-		select {
-		case elem, open := <-input:
-			if open {
-				ch.buffer.Add(elem)
-			} else {
-				input = nil
-			}
-		case output <- next:
-			ch.buffer.Remove()
-		case ch.length <- ch.buffer.Length():
-		}
-
-		if ch.buffer.Length() > 0 {
-			output = ch.output
-			next = ch.buffer.Peek()
-		} else {
-			output = nil
-			//next = nil
-		}
-	}
-
-	close(ch.output)
-	close(ch.length)
-}

event/infinitequeue.go

@@ -1,108 +0,0 @@
-package event
-
-/*
-This package is taken from https://github.com/eapache/channels
-as per their suggestion we are not importing the entire package and instead cherry picking and adapting what is needed
-
-It is covered by the MIT License https://github.com/eapache/channels/blob/master/LICENSE
-*/
-/*
-Package queue provides a fast, ring-buffer queue based on the version suggested by Dariusz Górecki.
-Using this instead of other, simpler, queue implementations (slice+append or linked list) provides
-substantial memory and time benefits, and fewer GC pauses.
-The queue implemented here is as fast as it is for an additional reason: it is *not* thread-safe.
-*/
-
-// minQueueLen is smallest capacity that queue may have.
-// Must be power of 2 for bitwise modulus: x % n == x & (n - 1).
-const minQueueLen = 16
-
-// Queue represents a single instance of the queue data structure.
-type infiniteQueue struct {
-	buf               []Event
-	head, tail, count int
-}
-
-// New constructs and returns a new Queue.
-func newInfinitQueue() *infiniteQueue {
-	return &infiniteQueue{
-		buf: make([]Event, minQueueLen),
-	}
-}
-
-// Length returns the number of elements currently stored in the queue.
-func (q *infiniteQueue) Length() int {
-	return q.count
-}
-
-// resizes the queue to fit exactly twice its current contents
-// this can result in shrinking if the queue is less than half-full
-func (q *infiniteQueue) resize() {
-	newBuf := make([]Event, q.count<<1)
-
-	if q.tail > q.head {
-		copy(newBuf, q.buf[q.head:q.tail])
-	} else {
-		n := copy(newBuf, q.buf[q.head:])
-		copy(newBuf[n:], q.buf[:q.tail])
-	}
-
-	q.head = 0
-	q.tail = q.count
-	q.buf = newBuf
-}
-
-// Add puts an element on the end of the queue.
-func (q *infiniteQueue) Add(elem Event) {
-	if q.count == len(q.buf) {
-		q.resize()
-	}
-
-	q.buf[q.tail] = elem
-	// bitwise modulus
-	q.tail = (q.tail + 1) & (len(q.buf) - 1)
-	q.count++
-}
-
-// Peek returns the element at the head of the queue. This call panics
-// if the queue is empty.
-func (q *infiniteQueue) Peek() Event {
-	if q.count <= 0 {
-		panic("queue: Peek() called on empty queue")
-	}
-	return q.buf[q.head]
-}
-
-// Get returns the element at index i in the queue. If the index is
-// invalid, the call will panic. This method accepts both positive and
-// negative index values. Index 0 refers to the first element, and
-// index -1 refers to the last.
-func (q *infiniteQueue) Get(i int) Event {
-	// If indexing backwards, convert to positive index.
-	if i < 0 {
-		i += q.count
-	}
-	if i < 0 || i >= q.count {
-		panic("queue: Get() called with index out of range")
-	}
-	// bitwise modulus
-	return q.buf[(q.head+i)&(len(q.buf)-1)]
-}
-
-// Remove removes and returns the element from the front of the queue. If the
-// queue is empty, the call will panic.
-func (q *infiniteQueue) Remove() Event {
-	if q.count <= 0 {
-		panic("queue: Remove() called on empty queue")
-	}
-	ret := q.buf[q.head]
-	//q.buf[q.head] = nil
-	// bitwise modulus
-	q.head = (q.head + 1) & (len(q.buf) - 1)
-	q.count--
-	// Resize down if buffer 1/4 full.
-	if len(q.buf) > minQueueLen && (q.count<<2) == len(q.buf) {
-		q.resize()
-	}
-	return ret
-}

event/ipc.go

@@ -1,14 +0,0 @@
-package event
-
-// IPCMessage is a wrapper for a regular eventMessage with a destination (onion|AppDest) so the other side of the bridge can route appropriately
-type IPCMessage struct {
-	Dest    string
-	Message Event
-}
-
-// IPCBridge is an interface to a IPC construct used to communicate IPCMessages
-type IPCBridge interface {
-	Read() (*IPCMessage, bool)
-	Write(message *IPCMessage)
-	Shutdown()
-}

go.mod

@@ -1,17 +0,0 @@
-module cwtch.im/cwtch
-
-go 1.14
-
-require (
-	git.openprivacy.ca/cwtch.im/tapir v0.4.3
-	git.openprivacy.ca/openprivacy/connectivity v1.4.4
-	git.openprivacy.ca/openprivacy/log v1.0.2
-	github.com/gtank/ristretto255 v0.1.2
-	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
-	github.com/struCoder/pidusage v0.1.3
-	golang.org/x/crypto v0.0.0-20201012173705-84dcc777aaee
-	golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 // indirect
-	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
-	golang.org/x/tools v0.1.2 // indirect
-	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
-)

go.sum

@@ -1,110 +0,0 @@
-git.openprivacy.ca/cwtch.im/tapir v0.3.1 h1:+d1dHyPvZ8JmdfFe/oXWJPardzflRIhcdILtkeArkW8=
-git.openprivacy.ca/cwtch.im/tapir v0.3.1/go.mod h1:q6RMI/TQvRN8SCtRY3GryOawMcB0uG6NjP6M77oSMx8=
-git.openprivacy.ca/cwtch.im/tapir v0.3.2 h1:thLWqqY1LkirWFcy9Tg6NgWeYbvo9xBm+s2XVnCIvpY=
-git.openprivacy.ca/cwtch.im/tapir v0.3.2/go.mod h1:q6RMI/TQvRN8SCtRY3GryOawMcB0uG6NjP6M77oSMx8=
-git.openprivacy.ca/cwtch.im/tapir v0.3.3 h1:Q7F8JijgOMMYSy3IdZl7+r6qkWckEWV1+EY7q6MAkVs=
-git.openprivacy.ca/cwtch.im/tapir v0.3.3/go.mod h1:ZMg9Jzh0n3Os2aSF4z+bx/n8WBCJBN7KCQESXperYts=
-git.openprivacy.ca/cwtch.im/tapir v0.3.4 h1:g7yZkfz/vWr/t2tFXa/t0Ebr/w665uIKpxpCZ3lIPCo=
-git.openprivacy.ca/cwtch.im/tapir v0.3.4/go.mod h1:+Niy2AHhQC351ZTtfhC0uLjViCICyOxCJZsIlGKKNAU=
-git.openprivacy.ca/cwtch.im/tapir v0.3.5 h1:AlqAhluY4ivznGoHh37Khyxy0u9IbtYskP93wgtmYx8=
-git.openprivacy.ca/cwtch.im/tapir v0.3.5/go.mod h1:eH6dZxXrhW0C4KZX18ksUa6XJCrEvtg8cJJ/Fy6gv+E=
-git.openprivacy.ca/cwtch.im/tapir v0.4.0 h1:clG8uORt0NKEhT4P+Dpw1pzyUuYzYBMevGqn2pciKk8=
-git.openprivacy.ca/cwtch.im/tapir v0.4.0/go.mod h1:eH6dZxXrhW0C4KZX18ksUa6XJCrEvtg8cJJ/Fy6gv+E=
-git.openprivacy.ca/cwtch.im/tapir v0.4.1 h1:9LMpQX41IzecNNlRc1FZKXHg6wlFss679tFsa3vzb3Y=
-git.openprivacy.ca/cwtch.im/tapir v0.4.1/go.mod h1:eH6dZxXrhW0C4KZX18ksUa6XJCrEvtg8cJJ/Fy6gv+E=
-git.openprivacy.ca/cwtch.im/tapir v0.4.2 h1:bxMWZnVJXX4dqqOFS7ELW4iFkVL4GS8wiRkjRv5rJe8=
-git.openprivacy.ca/cwtch.im/tapir v0.4.2/go.mod h1:eH6dZxXrhW0C4KZX18ksUa6XJCrEvtg8cJJ/Fy6gv+E=
-git.openprivacy.ca/cwtch.im/tapir v0.4.3 h1:sctSfUXHDIqaHfJPDl+5lHtmoEJolQiHTcHZGAe5Qc4=
-git.openprivacy.ca/cwtch.im/tapir v0.4.3/go.mod h1:10qEaib5x021zgyZ/97JKWsEpedH5+Vfy2CvB2V+08E=
-git.openprivacy.ca/openprivacy/bine v0.0.4 h1:CO7EkGyz+jegZ4ap8g5NWRuDHA/56KKvGySR6OBPW+c=
-git.openprivacy.ca/openprivacy/bine v0.0.4/go.mod h1:13ZqhKyqakDsN/ZkQkIGNULsmLyqtXc46XBcnuXm/mU=
-git.openprivacy.ca/openprivacy/connectivity v1.4.0 h1:c7AANUCrlA4hIqXxIGDOWMtSe8CpDleD1877PShScbM=
-git.openprivacy.ca/openprivacy/connectivity v1.4.0/go.mod h1:bR0Myx9nm2YzWtsThRelkNMV4Pp7sPDa123O1qsAbVo=
-git.openprivacy.ca/openprivacy/connectivity v1.4.1 h1:zoM+j7PFj8mQeUCNiDNMe7Uq9dhcJDOhaZcSANfeDL4=
-git.openprivacy.ca/openprivacy/connectivity v1.4.1/go.mod h1:bR0Myx9nm2YzWtsThRelkNMV4Pp7sPDa123O1qsAbVo=
-git.openprivacy.ca/openprivacy/connectivity v1.4.2 h1:rQFIjWunLlRmXL5Efsv+7+1cA70T6Uza6RCy2PRm9zc=
-git.openprivacy.ca/openprivacy/connectivity v1.4.2/go.mod h1:bR0Myx9nm2YzWtsThRelkNMV4Pp7sPDa123O1qsAbVo=
-git.openprivacy.ca/openprivacy/connectivity v1.4.3 h1:i2Ad/U9FlL9dKr2bhRck7lJ8NoWyGtoEfUwoCyMT0fU=
-git.openprivacy.ca/openprivacy/connectivity v1.4.3/go.mod h1:bR0Myx9nm2YzWtsThRelkNMV4Pp7sPDa123O1qsAbVo=
-git.openprivacy.ca/openprivacy/connectivity v1.4.4 h1:11M3akVCyy/luuhMpZTM1r9Jayl7IHD944Bxsn2FDpU=
-git.openprivacy.ca/openprivacy/connectivity v1.4.4/go.mod h1:JVRCIdL+lAG6ohBFWiKeC/MN42nnC0sfFszR9XG6vPQ=
-git.openprivacy.ca/openprivacy/log v1.0.1/go.mod h1:gGYK8xHtndRLDymFtmjkG26GaMQNgyhioNS82m812Iw=
-git.openprivacy.ca/openprivacy/log v1.0.2 h1:HLP4wsw4ljczFAelYnbObIs821z+jgMPCe8uODPnGQM=
-git.openprivacy.ca/openprivacy/log v1.0.2/go.mod h1:gGYK8xHtndRLDymFtmjkG26GaMQNgyhioNS82m812Iw=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/gtank/merlin v0.1.1 h1:eQ90iG7K9pOhtereWsmyRJ6RAwcP4tHTDBHXNg+u5is=
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model/attr/scope.go

@@ -1,60 +0,0 @@
-package attr
-
-import (
-	"strings"
-)
-
-/*
-Scope model for peer attributes and requests
-
-A local peer "Alice" has a PublicScope that is queryable by getVal requests.
-By default, for now, other scopes are private, of which we here define SettingsScope
-
-Alice's peer structs of remote peers such as "Bob" keep the queried
-PublicScope values in the PeerScope, which can be overridden by the same named
-values stored in the LocalScope.
-
-*/
-
-// scopes for attributes
-const (
-	// on a peer, local and peer supplied data
-	LocalScope = "local"
-	PeerScope  = "peer"
-
-	// on a local profile, public data and private settings
-	PublicScope   = "public"
-	SettingsScope = "settings"
-)
-
-// Separator for scope and the rest of path
-const Separator = "."
-
-// GetPublicScope takes a path and attaches the pubic scope to it
-func GetPublicScope(path string) string {
-	return PublicScope + Separator + path
-}
-
-// GetSettingsScope takes a path and attaches the settings scope to it
-func GetSettingsScope(path string) string {
-	return SettingsScope + Separator + path
-}
-
-// GetLocalScope takes a path and attaches the local scope to it
-func GetLocalScope(path string) string {
-	return LocalScope + Separator + path
-}
-
-// GetPeerScope takes a path and attaches the peer scope to it
-func GetPeerScope(path string) string {
-	return PeerScope + Separator + path
-}
-
-// GetScopePath take a full path and returns the scope and the scope-less path
-func GetScopePath(fullPath string) (string, string) {
-	parts := strings.SplitN(fullPath, Separator, 1)
-	if len(parts) != 2 {
-		return "", ""
-	}
-	return parts[0], parts[1]
-}

model/errors.go

@@ -1,15 +0,0 @@
-package model
-
-// Error models some common errors that need to be handled by applications that use Cwtch
-type Error string
-
-// Error is the error interface
-func (e Error) Error() string {
-	return string(e)
-}
-
-// Error definitions
-const (
-	InvalidEd25519PublicKey    = Error("InvalidEd25519PublicKey")
-	InconsistentKeyBundleError = Error("InconsistentKeyBundleError")
-)

model/group.go

@@ -1,277 +1,154 @@
 package model
 
 import (
-	"crypto/ed25519"
 	"crypto/rand"
-	"crypto/sha512"
-	"cwtch.im/cwtch/model/attr"
-	"cwtch.im/cwtch/protocol/groups"
-	"encoding/base32"
-	"encoding/base64"
-	"encoding/hex"
-	"encoding/json"
+	"cwtch.im/cwtch/protocol"
 	"errors"
 	"fmt"
-	"git.openprivacy.ca/openprivacy/connectivity/tor"
-	"git.openprivacy.ca/openprivacy/log"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"github.com/golang/protobuf/proto"
 	"golang.org/x/crypto/nacl/secretbox"
-	"golang.org/x/crypto/pbkdf2"
 	"io"
-	"strings"
+	"log"
 	"sync"
 	"time"
 )
 
-// CurrentGroupVersion is used to set the version of newly created groups and make sure group structs stored are correct and up to date
-const CurrentGroupVersion = 3
-
-// GroupInvitePrefix identifies a particular string as being a serialized group invite.
-const GroupInvitePrefix = "torv3"
-
 // Group defines and encapsulates Cwtch's conception of group chat. Which are sessions
-// tied to a server under a given group key. Each group has a set of Messages.
+// tied to a server under a given group key. Each group has a set of messages.
 type Group struct {
-	// GroupID is now derived from the GroupKey and the GroupServer
-	GroupID                string
-	GroupKey               [32]byte
-	GroupServer            string
-	Timeline               Timeline `json:"-"`
-	Accepted               bool
-	IsCompromised          bool
-	Attributes             map[string]string
-	lock                   sync.Mutex
-	LocalID                string
-	State                  string `json:"-"`
-	UnacknowledgedMessages []Message
-	Version                int
+	GroupID        string
+	SignedGroupID  []byte
+	GroupKey       [32]byte
+	GroupServer    string
+	Timeline       Timeline
+	Accepted       bool
+	Owner          string
+	IsCompromised  bool
+	InitialMessage []byte
+	lock           sync.Mutex
+	NewMessage     chan Message `json:"-"`
 }
 
 // NewGroup initializes a new group associated with a given CwtchServer
 func NewGroup(server string) (*Group, error) {
 	group := new(Group)
-	group.Version = CurrentGroupVersion
-	group.LocalID = GenerateRandomID()
-	group.Accepted = true // we are starting a group, so we assume we want to connect to it...
-	if !tor.IsValidHostname(server) {
-		return nil, errors.New("server is not a valid v3 onion")
-	}
-
 	group.GroupServer = server
 
 	var groupID [16]byte
 	if _, err := io.ReadFull(rand.Reader, groupID[:]); err != nil {
-		log.Errorf("Cannot read from random: %v\n", err)
+		log.Printf("Error: Cannot read from random: %v\n", err)
 		return nil, err
 	}
 	group.GroupID = fmt.Sprintf("%x", groupID)
 
 	var groupKey [32]byte
 	if _, err := io.ReadFull(rand.Reader, groupKey[:]); err != nil {
-		log.Errorf("Error: Cannot read from random: %v\n", err)
+		log.Printf("Error: Cannot read from random: %v\n", err)
 		return nil, err
 	}
 	copy(group.GroupKey[:], groupKey[:])
-
-	// Derive Group ID from the group key and the server public key. This binds the group to a particular server
-	// and key.
-	group.GroupID = deriveGroupID(groupKey[:], server)
-
-	group.Attributes = make(map[string]string)
-	// By default we set the "name" of the group to a random string, we can override this later, but to simplify the
-	// codes around invite, we assume that this is always set.
-	group.Attributes[attr.GetLocalScope("name")] = group.GroupID
+	group.Owner = "self"
 	return group, nil
 }
 
-// CheckGroup returns true only if the ID of the group is cryptographically valid.
-func (g *Group) CheckGroup() bool {
-	return g.GroupID == deriveGroupID(g.GroupKey[:], g.GroupServer)
+// SignGroup adds a signature to the group.
+func (g *Group) SignGroup(signature []byte) {
+	g.SignedGroupID = signature
+	copy(g.Timeline.SignedGroupID[:], g.SignedGroupID)
 }
 
-// deriveGroupID hashes together the key and the hostname to create a bound identifier that can later
-// be referenced and checked by profiles when they receive invites and messages.
-func deriveGroupID(groupKey []byte, serverHostname string) string {
-	data, _ := base32.StdEncoding.DecodeString(strings.ToUpper(serverHostname))
-	pubkey := data[0:ed25519.PublicKeySize]
-	return hex.EncodeToString(pbkdf2.Key(groupKey, pubkey, 4096, 16, sha512.New))
-}
-
-// Compromised should be called if we detect a groupkey leak
+// Compromised should be called if we detect a a groupkey leak.
 func (g *Group) Compromised() {
 	g.IsCompromised = true
 }
 
+// GetInitialMessage returns the first message of the group, if one was sent with the invite.
+func (g *Group) GetInitialMessage() []byte {
+	g.lock.Lock()
+	defer g.lock.Unlock()
+	return g.InitialMessage
+}
+
 // Invite generates a invitation that can be sent to a cwtch peer
-func (g *Group) Invite() (string, error) {
+func (g *Group) Invite(initialMessage []byte) ([]byte, error) {
 
-	gci := &groups.GroupInvite{
-		GroupID:    g.GroupID,
-		GroupName:  g.Attributes[attr.GetLocalScope("name")],
-		SharedKey:  g.GroupKey[:],
-		ServerHost: g.GroupServer,
+	if g.SignedGroupID == nil {
+		return nil, errors.New("group isn't signed")
 	}
 
-	invite, err := json.Marshal(gci)
-	serializedInvite := fmt.Sprintf("%v%v", GroupInvitePrefix, base64.StdEncoding.EncodeToString(invite))
-	return serializedInvite, err
-}
+	g.InitialMessage = initialMessage[:]
 
-// AddSentMessage takes a DecryptedGroupMessage and adds it to the Groups Timeline
-func (g *Group) AddSentMessage(message *groups.DecryptedGroupMessage, sig []byte) Message {
-	g.lock.Lock()
-	defer g.lock.Unlock()
-	timelineMessage := Message{
-		Message:            message.Text,
-		Timestamp:          time.Unix(int64(message.Timestamp), 0),
-		Received:           time.Unix(0, 0),
-		Signature:          sig,
-		PeerID:             message.Onion,
-		PreviousMessageSig: message.PreviousMessageSig,
-		ReceivedByServer:   false,
+	gci := &protocol.GroupChatInvite{
+		GroupName:      g.GroupID,
+		GroupSharedKey: g.GroupKey[:],
+		ServerHost:     g.GroupServer,
+		SignedGroupId:  g.SignedGroupID[:],
+		InitialMessage: initialMessage[:],
 	}
-	g.UnacknowledgedMessages = append(g.UnacknowledgedMessages, timelineMessage)
-	return timelineMessage
-}
 
-// ErrorSentMessage removes a sent message from the unacknowledged list and sets its error flag if found, otherwise returns false
-func (g *Group) ErrorSentMessage(sig []byte, error string) bool {
-	g.lock.Lock()
-	defer g.lock.Unlock()
-	var message *Message
-
-	// Delete the message from the unack'd buffer if it exists
-	for i, unAckedMessage := range g.UnacknowledgedMessages {
-		if compareSignatures(unAckedMessage.Signature, sig) {
-			message = &unAckedMessage
-			g.UnacknowledgedMessages = append(g.UnacknowledgedMessages[:i], g.UnacknowledgedMessages[i+1:]...)
-
-			message.Error = error
-			g.Timeline.Insert(message)
-			return true
-		}
+	cp := &protocol.CwtchPeerPacket{
+		GroupChatInvite: gci,
 	}
-	return false
+	invite, err := proto.Marshal(cp)
+	return invite, err
 }
 
 // AddMessage takes a DecryptedGroupMessage and adds it to the Groups Timeline
-func (g *Group) AddMessage(message *groups.DecryptedGroupMessage, sig []byte) (*Message, bool) {
-
+func (g *Group) AddMessage(message *protocol.DecryptedGroupMessage, sig []byte) *Message {
 	g.lock.Lock()
-	defer g.lock.Unlock()
-
-	// Delete the message from the unack'd buffer if it exists
-	for i, unAckedMessage := range g.UnacknowledgedMessages {
-		if compareSignatures(unAckedMessage.Signature, sig) {
-			g.UnacknowledgedMessages = append(g.UnacknowledgedMessages[:i], g.UnacknowledgedMessages[i+1:]...)
-			break
-		}
-	}
-
 	timelineMessage := &Message{
-		Message:            message.Text,
-		Timestamp:          time.Unix(int64(message.Timestamp), 0),
+		Message:            message.GetText(),
+		Timestamp:          time.Unix(int64(message.GetTimestamp()), 0),
 		Received:           time.Now(),
 		Signature:          sig,
-		PeerID:             message.Onion,
-		PreviousMessageSig: message.PreviousMessageSig,
-		ReceivedByServer:   true,
-		Error:              "",
-		Acknowledged:       true,
+		PeerID:             message.GetOnion(),
+		PreviousMessageSig: message.GetPreviousMessageSig(),
 	}
 	seen := g.Timeline.Insert(timelineMessage)
+	g.lock.Unlock()
 
-	return timelineMessage, seen
+	// Send a new Message notification if we have an app that is listening.
+	if g.NewMessage != nil && !seen {
+		g.NewMessage <- *timelineMessage
+	}
+	return timelineMessage
 }
 
-// GetTimeline provides a safe copy of the timeline
-func (g *Group) GetTimeline() (timeline []Message) {
+// GetTimeline provides a safe copy of the timeline-=
+func (g *Group) GetTimeline() (t []Message) {
 	g.lock.Lock()
-	defer g.lock.Unlock()
-	return append(g.Timeline.GetMessages(), g.UnacknowledgedMessages...)
+	t = g.Timeline.GetMessages()
+	g.lock.Unlock()
+	return
+
 }
 
 //EncryptMessage takes a message and encrypts the message under the group key.
-func (g *Group) EncryptMessage(message *groups.DecryptedGroupMessage) ([]byte, error) {
+func (g *Group) EncryptMessage(message *protocol.DecryptedGroupMessage) ([]byte, error) {
 	var nonce [24]byte
 	if _, err := io.ReadFull(rand.Reader, nonce[:]); err != nil {
-		log.Errorf("Cannot read from random: %v\n", err)
-		return nil, err
-	}
-	wire, err := json.Marshal(message)
-	if err != nil {
+		log.Printf("Error: Cannot read from random: %v\n", err)
 		return nil, err
 	}
+	wire, err := proto.Marshal(message)
+	utils.CheckError(err)
 	encrypted := secretbox.Seal(nonce[:], []byte(wire), &nonce, &g.GroupKey)
 	return encrypted, nil
 }
 
 // DecryptMessage takes a ciphertext and returns true and the decrypted message if the
 // cipher text can be successfully decrypted,else false.
-func (g *Group) DecryptMessage(ciphertext []byte) (bool, *groups.DecryptedGroupMessage) {
-	if len(ciphertext) > 24 {
-		var decryptNonce [24]byte
-		copy(decryptNonce[:], ciphertext[:24])
-		decrypted, ok := secretbox.Open(nil, ciphertext[24:], &decryptNonce, &g.GroupKey)
-		if ok {
-			dm := &groups.DecryptedGroupMessage{}
-			err := json.Unmarshal(decrypted, dm)
-			if err == nil {
-				return true, dm
-			}
+func (g *Group) DecryptMessage(ciphertext []byte) (bool, *protocol.DecryptedGroupMessage) {
+	var decryptNonce [24]byte
+	copy(decryptNonce[:], ciphertext[:24])
+	decrypted, ok := secretbox.Open(nil, ciphertext[24:], &decryptNonce, &g.GroupKey)
+	if ok {
+		dm := &protocol.DecryptedGroupMessage{}
+		err := proto.Unmarshal(decrypted, dm)
+		if err == nil {
+			return true, dm
 		}
 	}
 	return false, nil
 }
-
-// SetAttribute allows applications to store arbitrary configuration info at the group level.
-func (g *Group) SetAttribute(name string, value string) {
-	g.lock.Lock()
-	defer g.lock.Unlock()
-	g.Attributes[name] = value
-}
-
-// GetAttribute returns the value of a value set with SetAttribute. If no such value has been set exists is set to false.
-func (g *Group) GetAttribute(name string) (value string, exists bool) {
-	g.lock.Lock()
-	defer g.lock.Unlock()
-	value, exists = g.Attributes[name]
-	return
-}
-
-// ValidateInvite takes in a serialized invite and returns the invite structure if it is cryptographically valid
-// and an error if it is not
-func ValidateInvite(invite string) (*groups.GroupInvite, error) {
-	// We prefix invites for groups with torv3
-	if strings.HasPrefix(invite, GroupInvitePrefix) {
-		data, err := base64.StdEncoding.DecodeString(invite[len(GroupInvitePrefix):])
-		if err == nil {
-			// First attempt to unmarshal the json...
-			var gci groups.GroupInvite
-			err := json.Unmarshal(data, &gci)
-			if err == nil {
-
-				// Validate the Invite by first checking that the server is a valid v3 onion
-				if !tor.IsValidHostname(gci.ServerHost) {
-					return nil, errors.New("server is not a valid v3 onion")
-				}
-
-				// Validate the length of the shared key...
-				if len(gci.SharedKey) != 32 {
-					return nil, errors.New("key length is not 32 bytes")
-				}
-
-				// Derive the servers public key (we can ignore the error checking here because it's already been
-				// done by IsValidHostname, and check that we derive the same groupID...
-				derivedGroupID := deriveGroupID(gci.SharedKey, gci.ServerHost)
-				if derivedGroupID != gci.GroupID {
-					return nil, errors.New("group id is invalid")
-				}
-
-				// Replace the original with the derived, this should be a no-op at this point but defense in depth...
-				gci.GroupID = derivedGroupID
-				return &gci, nil
-			}
-		}
-	}
-	return nil, errors.New("invite has invalid structure")
-}

model/group_test.go

@@ -1,115 +1,27 @@
 package model
 
 import (
-	"crypto/sha256"
-	"cwtch.im/cwtch/protocol/groups"
-	"strings"
-	"sync"
+	"cwtch.im/cwtch/protocol"
+	"github.com/golang/protobuf/proto"
 	"testing"
 	"time"
 )
 
 func TestGroup(t *testing.T) {
-	g, _ := NewGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-	dgm := &groups.DecryptedGroupMessage{
-		Onion:              "onion",
-		Text:               "Hello World!",
-		Timestamp:          uint64(time.Now().Unix()),
-		SignedGroupID:      []byte{},
+	g, _ := NewGroup("server.onion")
+	dgm := &protocol.DecryptedGroupMessage{
+		Onion:              proto.String("onion"),
+		Text:               proto.String("Hello World!"),
+		Timestamp:          proto.Int32(int32(time.Now().Unix())),
+		SignedGroupId:      []byte{},
 		PreviousMessageSig: []byte{},
 		Padding:            []byte{},
 	}
-
-	invite, err := g.Invite()
-
-	if err != nil {
-		t.Fatalf("error creating group invite: %v", err)
-	}
-
-	validatedInvite, err := ValidateInvite(invite)
-
-	if err != nil {
-		t.Fatalf("error validating group invite: %v", err)
-	}
-
-	if validatedInvite.GroupID != g.GroupID {
-		t.Fatalf("after validate group invite id should be identical to original: %v", err)
-	}
-
 	encMessage, _ := g.EncryptMessage(dgm)
 	ok, message := g.DecryptMessage(encMessage)
-	if !ok || message.Text != "Hello World!" {
+	if !ok || message.GetText() != "Hello World!" {
 		t.Errorf("group encryption was invalid, or returned wrong message decrypted:%v message:%v", ok, message)
 		return
 	}
-	g.SetAttribute("test", "test_value")
-	value, exists := g.GetAttribute("test")
-	if !exists || value != "test_value" {
-		t.Errorf("Custom Attribute Should have been set, instead %v %v", exists, value)
-	}
 	t.Logf("Got message %v", message)
 }
-
-func TestGroupErr(t *testing.T) {
-	_, err := NewGroup("not a real group name")
-	if err == nil {
-		t.Errorf("Group Setup Should Have Failed")
-	}
-}
-
-// Test various group invite validation failures...
-func TestGroupValidation(t *testing.T) {
-
-	group := &Group{
-		GroupID:                "",
-		GroupKey:               [32]byte{},
-		GroupServer:            "",
-		Timeline:               Timeline{},
-		Accepted:               false,
-		IsCompromised:          false,
-		Attributes:             nil,
-		lock:                   sync.Mutex{},
-		LocalID:                "",
-		State:                  "",
-		UnacknowledgedMessages: nil,
-		Version:                0,
-	}
-
-	invite, _ := group.Invite()
-	_, err := ValidateInvite(invite)
-
-	if err == nil {
-		t.Fatalf("Group with empty group id should have been an error")
-	}
-	t.Logf("Error: %v", err)
-
-	// Generate a valid group but replace the group server...
-	group, _ = NewGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-	group.GroupServer = "tcnkoch4nyr3cldkemejtkpqok342rbql6iclnjjs3ndgnjgufzyxvqd"
-	invite, _ = group.Invite()
-	_, err = ValidateInvite(invite)
-
-	if err == nil {
-		t.Fatalf("Group with empty group id should have been an error")
-	}
-	t.Logf("Error: %v", err)
-
-	// Generate a valid group but replace the group key...
-	group, _ = NewGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-	group.GroupKey = sha256.Sum256([]byte{})
-	invite, _ = group.Invite()
-	_, err = ValidateInvite(invite)
-
-	if err == nil {
-		t.Fatalf("Group with different group key should have errored")
-	}
-	t.Logf("Error: %v", err)
-
-	// mangle the invite
-	_, err = ValidateInvite(strings.ReplaceAll(invite, GroupInvitePrefix, ""))
-	if err == nil {
-		t.Fatalf("Group with different group key should have errored")
-	}
-	t.Logf("Error: %v", err)
-
-}

model/keyBundle.go

@@ -1,103 +0,0 @@
-package model
-
-import (
-	"crypto/ed25519"
-	"encoding/base32"
-	"encoding/json"
-	"errors"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"strings"
-)
-
-// KeyType provides a wrapper for a generic public key type identifier (could be an onion address, a zcash address etc.)
-type KeyType string
-
-const (
-
-	// BundleType - the attribute under which the signed server bundle is stored...
-	BundleType = KeyType("server_key_bundle")
-
-	// KeyTypeServerOnion - a cwtch address
-	KeyTypeServerOnion = KeyType("bulletin_board_onion") // bulletin board
-
-	// KeyTypeTokenOnion - a cwtch peer with a PoW based token protocol
-	KeyTypeTokenOnion = KeyType("token_service_onion")
-
-	//KeyTypePrivacyPass - a privacy pass based token server
-	KeyTypePrivacyPass = KeyType("privacy_pass_public_key")
-)
-
-// Key provides a wrapper for a generic public key identifier (could be an onion address, a zcash address etc.)
-type Key string
-
-// KeyBundle manages a collection of related keys for various different services.
-type KeyBundle struct {
-	Keys      map[KeyType]Key
-	Signature []byte
-}
-
-// NewKeyBundle creates a new KeyBundle initialized with no keys.
-func NewKeyBundle() *KeyBundle {
-	keyBundle := new(KeyBundle)
-	keyBundle.Keys = make(map[KeyType]Key)
-	return keyBundle
-}
-
-// HasKeyType returns true if the bundle has a public key of a given type.
-func (kb *KeyBundle) HasKeyType(keytype KeyType) bool {
-	_, exists := kb.Keys[keytype]
-	return exists
-}
-
-// GetKey retrieves a key with a given type from the bundle
-func (kb *KeyBundle) GetKey(keytype KeyType) (Key, error) {
-	key, exists := kb.Keys[keytype]
-	if exists {
-		return key, nil
-	}
-	return "", errors.New("no such key")
-}
-
-// Serialize produces a json encoded byte array.
-func (kb KeyBundle) Serialize() []byte {
-	// json.Marshal sorts map keys
-	bundle, _ := json.Marshal(kb)
-	return bundle
-}
-
-// Sign allows a server to authenticate a key bundle by signing it (this uses the tapir identity interface)
-func (kb *KeyBundle) Sign(identity primitives.Identity) {
-	kb.Signature = identity.Sign(kb.Serialize())
-}
-
-// DeserializeAndVerify takes in a json formatted bundle and only returns a valid key bundle
-// if it has been signed by the server.
-func DeserializeAndVerify(bundle []byte) (*KeyBundle, error) {
-	keyBundle := new(KeyBundle)
-	err := json.Unmarshal(bundle, &keyBundle)
-	if err == nil {
-		signature := keyBundle.Signature
-		keyBundle.Signature = nil
-		serverKey, _ := keyBundle.GetKey(KeyTypeServerOnion)
-
-		// We have to do convert the encoded key to a format that can be used to verify the signature
-		var decodedPub []byte
-		decodedPub, err = base32.StdEncoding.DecodeString(strings.ToUpper(string(serverKey)))
-		if err == nil && len(decodedPub) == 35 {
-			if ed25519.Verify(decodedPub[:32], keyBundle.Serialize(), signature) { // == true
-				return keyBundle, nil
-			}
-		}
-		err = InvalidEd25519PublicKey
-	}
-	return nil, err
-}
-
-// AttributeBundle returns a map that can be used as part of a peer attribute bundle
-func (kb *KeyBundle) AttributeBundle() map[string]string {
-	ab := make(map[string]string)
-	for k, v := range kb.Keys {
-		ab[string(k)] = string(v)
-	}
-	return ab
-}

model/keyBundle_test.go

@@ -1,64 +0,0 @@
-package model
-
-import (
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"testing"
-)
-
-func TestDeserializeAndVerify(t *testing.T) {
-	server, _ := primitives.InitializeEphemeralIdentity()
-
-	serverKeyBundle := NewKeyBundle()
-
-	serverKeyBundle.Keys[KeyTypeServerOnion] = Key(server.Hostname())
-	serverKeyBundle.Keys[KeyTypePrivacyPass] = Key("random 1")
-	serverKeyBundle.Keys[KeyTypeTokenOnion] = Key("random 2")
-	serverKeyBundle.Sign(server)
-
-	//eyeball keys are sorted
-	t.Logf("%s", serverKeyBundle.Serialize())
-	serialize := serverKeyBundle.Serialize()
-
-	newKeyBundle, err := DeserializeAndVerify(serialize)
-	if err != nil {
-		t.Fatalf("Key Bundle did not Deserialize %v", err)
-	}
-
-	if newKeyBundle.Keys[KeyTypeServerOnion] != Key(server.Hostname()) {
-		t.Fatalf("Key Bundle did not Serialize Correctly Actual: %v Expected: %v", newKeyBundle, serverKeyBundle)
-	}
-}
-
-func TestDeserializeAndVerifyMaliciousSignShouldFail(t *testing.T) {
-	server, _ := primitives.InitializeEphemeralIdentity()
-	maliciousServer, _ := primitives.InitializeEphemeralIdentity()
-	serverKeyBundle := NewKeyBundle()
-
-	serverKeyBundle.Keys[KeyTypeServerOnion] = Key(server.Hostname())
-
-	// This time we sign with a malicious server
-	serverKeyBundle.Sign(maliciousServer)
-	serialize := serverKeyBundle.Serialize()
-
-	newKeyBundle, err := DeserializeAndVerify(serialize)
-	if err == nil {
-		t.Fatalf("Key Bundle did Deserialize (it should have failed): %v", newKeyBundle)
-	}
-}
-
-func TestDeserializeAndVerifyUnsignedShouldFail(t *testing.T) {
-	server, _ := primitives.InitializeEphemeralIdentity()
-
-	serverKeyBundle := NewKeyBundle()
-
-	serverKeyBundle.Keys[KeyTypeServerOnion] = Key(server.Hostname())
-
-	// This time we don't sign
-	// serverKeyBundle.Sign(server)
-	serialize := serverKeyBundle.Serialize()
-
-	newKeyBundle, err := DeserializeAndVerify(serialize)
-	if err == nil {
-		t.Fatalf("Key Bundle did Deserialize (it should have failed): %v", newKeyBundle)
-	}
-}

model/message.go

@@ -1,13 +1,12 @@
 package model
 
 import (
-	"encoding/json"
 	"sort"
 	"sync"
 	"time"
 )
 
-// Timeline encapsulates a collection of ordered Messages, and a mechanism to access them
+// Timeline encapsulates a collection of ordered messages, and a mechanism to access them
 // in a threadsafe manner.
 type Timeline struct {
 	Messages      []Message
@@ -23,25 +22,18 @@ type Message struct {
 	Message            string
 	Signature          []byte
 	PreviousMessageSig []byte
-	ReceivedByServer   bool   // messages sent to a server
-	Acknowledged       bool   // peer to peer
-	Error              string `json:",omitempty"`
-	// Application specific flags, useful for storing small amounts of metadata
-	Flags uint64
 }
 
-// MessageBaseSize is a rough estimate of the base number of bytes the struct uses before strings are populated
-const MessageBaseSize = 104
-
 func compareSignatures(a []byte, b []byte) bool {
 	if len(a) != len(b) {
 		return false
 	}
-	int d = 0
 	for i := range a {
-		d := d | (a[i] ^ b[i])
+		if a[i] != b[i] {
+			return false
+		}
 	}
-	return d == 0
+	return true
 }
 
 // GetMessages returns a copy of the entire timeline
@@ -53,45 +45,23 @@ func (t *Timeline) GetMessages() []Message {
 	return messages
 }
 
-// GetCopy returns a duplicate of the Timeline
-func (t *Timeline) GetCopy() *Timeline {
-	t.lock.Lock()
-	defer t.lock.Unlock()
-	bytes, _ := json.Marshal(t)
-	newt := &Timeline{}
-	json.Unmarshal(bytes, newt)
-	return newt
-}
-
-// SetMessages sets the Messages of this timeline. Only to be used in loading/initialization
-func (t *Timeline) SetMessages(messages []Message) {
-	t.lock.Lock()
-	defer t.lock.Unlock()
-	t.Messages = messages
-}
-
 // Len gets the length of the timeline
 func (t *Timeline) Len() int {
 	return len(t.Messages)
 }
 
-// Swap swaps 2 Messages on the timeline.
+// Swap swaps 2 messages on the timeline.
 func (t *Timeline) Swap(i, j int) {
 	t.Messages[i], t.Messages[j] = t.Messages[j], t.Messages[i]
 }
 
-// Less checks 2 Messages (i and j) in the timeline and returns true if i occurred before j, else false
+// Less checks 2 messages (i and j) in the timeline and returns true if i occcured before j, else false
 func (t *Timeline) Less(i, j int) bool {
 
 	if t.Messages[i].Timestamp.Before(t.Messages[j].Timestamp) {
 		return true
 	}
 
-	// Short circuit false if j is before i, signature checks will give a wrong order in this case.
-	if t.Messages[j].Timestamp.Before(t.Messages[i].Timestamp) {
-		return false
-	}
-
 	if compareSignatures(t.Messages[i].PreviousMessageSig, t.SignedGroupID) {
 		return true
 	}
@@ -103,13 +73,6 @@ func (t *Timeline) Less(i, j int) bool {
 	return false
 }
 
-// Sort sorts the timeline in a canonical order.
-func (t *Timeline) Sort() {
-	t.lock.Lock()
-	defer t.lock.Unlock()
-	sort.Sort(t)
-}
-
 // Insert inserts a message into the timeline in a thread safe way.
 func (t *Timeline) Insert(mi *Message) bool {
 	t.lock.Lock()

model/message_test.go

@@ -1,6 +1,8 @@
 package model
 
 import (
+	"cwtch.im/cwtch/protocol"
+	"github.com/golang/protobuf/proto"
 	"strconv"
 	"testing"
 	"time"
@@ -14,14 +16,15 @@ func TestMessagePadding(t *testing.T) {
 	sarah.AddContact(alice.Onion, &alice.PublicProfile)
 	alice.AddContact(sarah.Onion, &sarah.PublicProfile)
 
-	gid, invite, _ := alice.StartGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
+	gid, invite, _ := alice.StartGroup("aaa.onion")
+	gci := &protocol.CwtchPeerPacket{}
+	proto.Unmarshal(invite, gci)
+	sarah.ProcessInvite(gci.GetGroupChatInvite(), alice.Onion)
 
-	sarah.ProcessInvite(invite)
+	group := alice.GetGroupByGroupID(gid)
 
-	group := alice.GetGroup(gid)
-
-	c1, s1, err := sarah.EncryptMessageToGroup("Hello World 1", group.GroupID)
-	t.Logf("Length of Encrypted Message: %v %v", len(c1), err)
+	c1, s1, _ := sarah.EncryptMessageToGroup("Hello World 1", group.GroupID)
+	t.Logf("Length of Encrypted Message: %v", len(c1))
 	alice.AttemptDecryption(c1, s1)
 
 	c2, s2, _ := alice.EncryptMessageToGroup("Hello World 2", group.GroupID)
@@ -47,14 +50,12 @@ func TestTranscriptConsistency(t *testing.T) {
 	sarah.AddContact(alice.Onion, &alice.PublicProfile)
 	alice.AddContact(sarah.Onion, &sarah.PublicProfile)
 
-	// The lightest weight server entry possible (usually we would import a key bundle...)
-	sarah.AddContact("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd", &PublicProfile{Attributes: map[string]string{string(KeyTypeServerOnion): "2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd"}})
+	gid, invite, _ := alice.StartGroup("aaa.onion")
+	gci := &protocol.CwtchPeerPacket{}
+	proto.Unmarshal(invite, gci)
+	sarah.ProcessInvite(gci.GetGroupChatInvite(), alice.Onion)
 
-	gid, invite, _ := alice.StartGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-
-	sarah.ProcessInvite(invite)
-
-	group := alice.GetGroup(gid)
+	group := alice.GetGroupByGroupID(gid)
 
 	t.Logf("group: %v, sarah %v", group, sarah)
 
@@ -79,14 +80,14 @@ func TestTranscriptConsistency(t *testing.T) {
 	c5, s5, _ := alice.EncryptMessageToGroup("Hello World 5", group.GroupID)
 	t.Logf("Length of Encrypted Message: %v", len(c5))
 
-	_, _, m1, _ := sarah.AttemptDecryption(c1, s1)
+	_, m1 := sarah.AttemptDecryption(c1, s1)
 	sarah.AttemptDecryption(c1, s1) // Try a duplicate
-	_, _, m2, _ := sarah.AttemptDecryption(c2, s2)
-	_, _, m3, _ := sarah.AttemptDecryption(c3, s3)
-	_, _, m4, _ := sarah.AttemptDecryption(c4, s4)
-	_, _, m5, _ := sarah.AttemptDecryption(c5, s5)
+	_, m2 := sarah.AttemptDecryption(c2, s2)
+	_, m3 := sarah.AttemptDecryption(c3, s3)
+	_, m4 := sarah.AttemptDecryption(c4, s4)
+	_, m5 := sarah.AttemptDecryption(c5, s5)
 
-	// Now we simulate a client receiving these Messages completely out of order
+	// Now we simulate a client receiving these messages completely out of order
 	timeline.Insert(m1)
 	timeline.Insert(m5)
 	timeline.Insert(m4)

model/profile.go

@@ -2,47 +2,25 @@ package model
 
 import (
 	"crypto/rand"
-	"cwtch.im/cwtch/model/attr"
-	"cwtch.im/cwtch/protocol/groups"
+	"cwtch.im/cwtch/protocol"
 	"encoding/base32"
-	"encoding/hex"
-	"encoding/json"
 	"errors"
-	"fmt"
-	"git.openprivacy.ca/openprivacy/connectivity/tor"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"github.com/golang/protobuf/proto"
 	"golang.org/x/crypto/ed25519"
 	"io"
-	"path/filepath"
 	"strings"
 	"sync"
 	"time"
 )
 
-// Authorization is a type determining client assigned authorization to a peer
-type Authorization string
-
-const (
-	// AuthUnknown is an initial state for a new unseen peer
-	AuthUnknown Authorization = "unknown"
-	// AuthApproved means the client has approved the peer, it can send messages to us, perform GetVals, etc
-	AuthApproved Authorization = "approved"
-	// AuthBlocked means the client has blocked the peer, it's messages and connections should be rejected
-	AuthBlocked Authorization = "blocked"
-)
-
 // PublicProfile is a local copy of a CwtchIdentity
 type PublicProfile struct {
-	Name                   string
-	Ed25519PublicKey       ed25519.PublicKey
-	Authorization          Authorization
-	DeprecatedBlocked      bool `json:"Blocked"`
-	Onion                  string
-	Attributes             map[string]string
-	Timeline               Timeline `json:"-"`
-	LocalID                string   // used by storage engine
-	State                  string   `json:"-"`
-	lock                   sync.Mutex
-	UnacknowledgedMessages map[string]int
+	Name             string
+	Ed25519PublicKey ed25519.PublicKey
+	Trusted          bool
+	Blocked          bool
+	Onion            string
 }
 
 // Profile encapsulates all the attributes necessary to be a Cwtch Peer.
@@ -51,109 +29,53 @@ type Profile struct {
 	Contacts          map[string]*PublicProfile
 	Ed25519PrivateKey ed25519.PrivateKey
 	Groups            map[string]*Group
-}
-
-// MaxGroupMessageLength is the maximum length of a message posted to a server group.
-// TODO: Should this be per server?
-const MaxGroupMessageLength = 1800
-
-// GenerateRandomID generates a random 16 byte hex id code
-func GenerateRandomID() string {
-	randBytes := make([]byte, 16)
-	rand.Read(randBytes)
-	return filepath.Join(hex.EncodeToString(randBytes))
-}
-
-func (p *PublicProfile) init() {
-	if p.Attributes == nil {
-		p.Attributes = make(map[string]string)
-	}
-	p.UnacknowledgedMessages = make(map[string]int)
-	p.LocalID = GenerateRandomID()
-}
-
-// SetAttribute allows applications to store arbitrary configuration info at the profile level.
-func (p *PublicProfile) SetAttribute(name string, value string) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	p.Attributes[name] = value
-}
-
-// IsServer returns true if the profile is associated with a server.
-func (p *PublicProfile) IsServer() (isServer bool) {
-	_, isServer = p.GetAttribute(string(KeyTypeServerOnion))
-	return
-}
-
-// GetAttribute returns the value of a value set with SetCustomAttribute. If no such value has been set exists is set to false.
-func (p *PublicProfile) GetAttribute(name string) (value string, exists bool) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	value, exists = p.Attributes[name]
-	return
+	Custom            map[string]string
+	lock              sync.Mutex
 }
 
 // GenerateNewProfile creates a new profile, with new encryption and signing keys, and a profile name.
 func GenerateNewProfile(name string) *Profile {
 	p := new(Profile)
-	p.init()
 	p.Name = name
 	pub, priv, _ := ed25519.GenerateKey(rand.Reader)
 	p.Ed25519PublicKey = pub
 	p.Ed25519PrivateKey = priv
-	p.Onion = tor.GetTorV3Hostname(pub)
+	p.Onion = utils.GetTorV3Hostname(pub)
 
 	p.Contacts = make(map[string]*PublicProfile)
 	p.Contacts[p.Onion] = &p.PublicProfile
 	p.Groups = make(map[string]*Group)
+	p.Custom = make(map[string]string)
 	return p
 }
 
+// GetCwtchIdentityPacket returns the wire message for conveying this profiles identity.
+func (p *Profile) GetCwtchIdentityPacket() (message []byte) {
+	ci := &protocol.CwtchIdentity{
+		Name:             p.Name,
+		Ed25519PublicKey: p.Ed25519PublicKey,
+	}
+	cpp := &protocol.CwtchPeerPacket{
+		CwtchIdentify: ci,
+	}
+	message, err := proto.Marshal(cpp)
+	utils.CheckError(err)
+	return
+}
+
+// AddCwtchIdentity takes a wire message and if it is a CwtchIdentity message adds the identity as a contact
+// otherwise returns an error
+func (p *Profile) AddCwtchIdentity(onion string, ci *protocol.CwtchIdentity) {
+	p.AddContact(onion, &PublicProfile{Name: ci.GetName(), Ed25519PublicKey: ci.GetEd25519PublicKey(), Onion: onion})
+}
+
 // AddContact allows direct manipulation of cwtch contacts
 func (p *Profile) AddContact(onion string, profile *PublicProfile) {
 	p.lock.Lock()
-	profile.init()
-	// We expect callers to verify addresses before we get to this point, so if this isn't a
-	// valid address this is a noop.
-	if tor.IsValidHostname(onion) {
-		decodedPub, err := base32.StdEncoding.DecodeString(strings.ToUpper(onion[:56]))
-		if err == nil {
-			profile.Ed25519PublicKey = ed25519.PublicKey(decodedPub[:32])
-			p.Contacts[onion] = profile
-		}
-	}
+	p.Contacts[onion] = profile
 	p.lock.Unlock()
 }
 
-// UpdateMessageFlags updates the flags stored with a message
-func (p *Profile) UpdateMessageFlags(handle string, mIdx int, flags uint64) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	if contact, exists := p.Contacts[handle]; exists {
-		if len(contact.Timeline.Messages) > mIdx {
-			contact.Timeline.Messages[mIdx].Flags = flags
-		}
-	} else if group, exists := p.Groups[handle]; exists {
-		if len(group.Timeline.Messages) > mIdx {
-			group.Timeline.Messages[mIdx].Flags = flags
-		}
-	}
-}
-
-// DeleteContact deletes a peer contact
-func (p *Profile) DeleteContact(onion string) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	delete(p.Contacts, onion)
-}
-
-// DeleteGroup deletes a group
-func (p *Profile) DeleteGroup(groupID string) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	delete(p.Groups, groupID)
-}
-
 // RejectInvite rejects and removes a group invite
 func (p *Profile) RejectInvite(groupID string) {
 	p.lock.Lock()
@@ -161,88 +83,6 @@ func (p *Profile) RejectInvite(groupID string) {
 	p.lock.Unlock()
 }
 
-// AddSentMessageToContactTimeline allows the saving of a message sent via a direct connection chat to the profile.
-func (p *Profile) AddSentMessageToContactTimeline(onion string, messageTxt string, sent time.Time, eventID string) *Message {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-
-	contact, ok := p.Contacts[onion]
-	if ok {
-		now := time.Now()
-		sig := p.SignMessage(onion + messageTxt + sent.String() + now.String())
-
-		message := &Message{PeerID: p.Onion, Message: messageTxt, Timestamp: sent, Received: now, Signature: sig, Acknowledged: false}
-		if contact.UnacknowledgedMessages == nil {
-			contact.UnacknowledgedMessages = make(map[string]int)
-		}
-		contact.Timeline.Insert(message)
-		contact.UnacknowledgedMessages[eventID] = contact.Timeline.Len() - 1
-		return message
-	}
-	return nil
-}
-
-// AddMessageToContactTimeline allows the saving of a message sent via a direct connection chat to the profile.
-func (p *Profile) AddMessageToContactTimeline(onion string, messageTxt string, sent time.Time) (message *Message) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	contact, ok := p.Contacts[onion]
-
-	// We don't really need a Signature here, but we use it to maintain order
-	now := time.Now()
-	sig := p.SignMessage(onion + messageTxt + sent.String() + now.String())
-	if ok {
-		message = &Message{PeerID: onion, Message: messageTxt, Timestamp: sent, Received: now, Signature: sig, Acknowledged: true}
-		contact.Timeline.Insert(message)
-	}
-	return
-}
-
-// ErrorSentMessageToPeer sets a sent message's error message and removes it from the unacknowledged list
-func (p *Profile) ErrorSentMessageToPeer(onion string, eventID string, error string) int {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-
-	contact, ok := p.Contacts[onion]
-	if ok {
-		mIdx, ok := contact.UnacknowledgedMessages[eventID]
-		if ok {
-			contact.Timeline.Messages[mIdx].Error = error
-			delete(contact.UnacknowledgedMessages, eventID)
-			return mIdx
-		}
-	}
-	return -1
-}
-
-// AckSentMessageToPeer sets mesage to a peer as acknowledged
-func (p *Profile) AckSentMessageToPeer(onion string, eventID string) int {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-
-	contact, ok := p.Contacts[onion]
-	if ok {
-		mIdx, ok := contact.UnacknowledgedMessages[eventID]
-		if ok {
-			contact.Timeline.Messages[mIdx].Acknowledged = true
-			delete(contact.UnacknowledgedMessages, eventID)
-			return mIdx
-		}
-	}
-
-	return -1
-}
-
-// AddGroupSentMessageError searches matching groups for the message by sig and marks it as an error
-func (p *Profile) AddGroupSentMessageError(groupID string, signature []byte, error string) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	group, exists := p.Groups[groupID]
-	if exists {
-		group.ErrorSentMessage(signature, error)
-	}
-}
-
 // AcceptInvite accepts a group invite
 func (p *Profile) AcceptInvite(groupID string) (err error) {
 	p.lock.Lock()
@@ -267,6 +107,21 @@ func (p *Profile) GetGroups() []string {
 	return keys
 }
 
+// SetCustomAttribute allows applications to store arbitrary configuration info at the profile level.
+func (p *Profile) SetCustomAttribute(name string, value string) {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	p.Custom[name] = value
+}
+
+// GetCustomAttribute returns the value of a value set with SetCustomAttribute. If no such value has been set exists is set to false.
+func (p *Profile) GetCustomAttribute(name string) (value string, exists bool) {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	value, exists = p.Custom[name]
+	return
+}
+
 // GetContacts returns an unordered list of contact onions associated with this profile.
 func (p *Profile) GetContacts() []string {
 	p.lock.Lock()
@@ -280,38 +135,39 @@ func (p *Profile) GetContacts() []string {
 	return keys
 }
 
-// SetContactAuthorization sets the authoirization level of a peer
-func (p *Profile) SetContactAuthorization(onion string, auth Authorization) (err error) {
+// BlockPeer blocks a contact
+func (p *Profile) BlockPeer(onion string) (err error) {
 	p.lock.Lock()
 	defer p.lock.Unlock()
 	contact, ok := p.Contacts[onion]
 	if ok {
-		contact.Authorization = auth
+		contact.Blocked = true
 	} else {
 		err = errors.New("peer does not exist")
 	}
 	return
 }
 
-// GetContactAuthorization returns the contact's authorization level
-func (p *Profile) GetContactAuthorization(onion string) Authorization {
+// TrustPeer sets a contact to trusted
+func (p *Profile) TrustPeer(onion string) (err error) {
 	p.lock.Lock()
 	defer p.lock.Unlock()
 	contact, ok := p.Contacts[onion]
 	if ok {
-		return contact.Authorization
+		contact.Trusted = true
+	} else {
+		err = errors.New("peer does not exist")
 	}
-	return AuthUnknown
+	return
 }
 
-// ContactsAuthorizations calculates a list of Peers who are at the supplied auth levels
-func (p *Profile) ContactsAuthorizations(authorizationFilter ...Authorization) map[string]Authorization {
-	authorizations := map[string]Authorization{}
-	for _, contact := range p.GetContacts() {
-		c, _ := p.GetContact(contact)
-		authorizations[c.Onion] = c.Authorization
+// IsBlocked returns true if the contact has been blocked, false otherwise
+func (p *Profile) IsBlocked(onion string) bool {
+	contact, ok := p.GetContact(onion)
+	if ok {
+		return contact.Blocked
 	}
-	return authorizations
+	return false
 }
 
 // GetContact returns a contact if the profile has it
@@ -322,36 +178,22 @@ func (p *Profile) GetContact(onion string) (*PublicProfile, bool) {
 	return contact, ok
 }
 
-// VerifyGroupMessage confirms the authenticity of a message given an sender onion, ciphertext and signature.
-// The goal of this function is 2-fold:
-// 1. We confirm that the sender referenced in the group text is the actual sender of the message (or at least
-//     knows the senders private key)
-// 2. Secondly, we confirm that the sender sent the message to a particular group id on a specific server (it doesn't
-//      matter if we actually received this message from the server or from a hybrid protocol, all that matters is
-//      that the sender and receivers agree that this message was intended for the group
-// The 2nd point is important as it prevents an attack documented in the original Cwtch paper (and later at
-// https://docs.openprivacy.ca/cwtch-security-handbook/groups.html) in which a malicious profile sets up 2 groups
-// on two different servers with the same key and then forwards messages between them to convince the parties in
-// each group that they are actually in one big group (with the intent to later censor and/or selectively send messages
-// to each group).
-func (p *Profile) VerifyGroupMessage(onion string, groupID string, ciphertext []byte, signature []byte) bool {
+// VerifyGroupMessage confirms the authenticity of a message given an onion, message and signature.
+func (p *Profile) VerifyGroupMessage(onion string, groupID string, message string, timestamp int32, ciphertext []byte, signature []byte) bool {
 
-	group := p.GetGroup(groupID)
+	group := p.GetGroupByGroupID(groupID)
 	if group == nil {
 		return false
 	}
 
-	// We use our group id, a known reference server and the ciphertext of the message.
-	m := groupID + group.GroupServer + string(ciphertext)
-
-	// If the message is ostensibly from us then we check it against our public key...
 	if onion == p.Onion {
+		m := groupID + group.GroupServer + string(ciphertext)
 		return ed25519.Verify(p.Ed25519PublicKey, []byte(m), signature)
 	}
 
-	// Otherwise we derive the public key from the sender and check it against that.
+	m := groupID + group.GroupServer + string(ciphertext)
 	decodedPub, err := base32.StdEncoding.DecodeString(strings.ToUpper(onion))
-	if err == nil && len(decodedPub) >= 32 {
+	if err == nil {
 		return ed25519.Verify(decodedPub[:32], []byte(m), signature)
 	}
 	return false
@@ -365,160 +207,145 @@ func (p *Profile) SignMessage(message string) []byte {
 
 // StartGroup when given a server, creates a new Group under this profile and returns the group id an a precomputed
 // invite which can be sent on the wire.
-func (p *Profile) StartGroup(server string) (groupID string, invite string, err error) {
+func (p *Profile) StartGroup(server string) (groupID string, invite []byte, err error) {
+	return p.StartGroupWithMessage(server, []byte{})
+}
+
+// StartGroupWithMessage when given a server, and an initial message creates a new Group under this profile and returns the group id an a precomputed
+// invite which can be sent on the wire.
+func (p *Profile) StartGroupWithMessage(server string, initialMessage []byte) (groupID string, invite []byte, err error) {
 	group, err := NewGroup(server)
 	if err != nil {
-		return "", "", err
+		return "", nil, err
 	}
 	groupID = group.GroupID
-	invite, err = group.Invite()
+	signedGroupID := p.SignMessage(groupID + server)
+	group.SignGroup(signedGroupID)
+	invite, err = group.Invite(initialMessage)
 	p.lock.Lock()
 	defer p.lock.Unlock()
 	p.Groups[group.GroupID] = group
 	return
 }
 
-// GetGroup a pointer to a Group by the group Id, returns nil if no group found.
-func (p *Profile) GetGroup(groupID string) (g *Group) {
+// GetGroupByGroupID a pointer to a Group by the group Id, returns nil if no group found.
+func (p *Profile) GetGroupByGroupID(groupID string) (g *Group) {
 	p.lock.Lock()
 	defer p.lock.Unlock()
 	g = p.Groups[groupID]
 	return
 }
 
-// ProcessInvite validates a group invite and adds a new group invite to the profile if it is valid.
-// returns the new group ID on success, error on fail.
-func (p *Profile) ProcessInvite(invite string) (string, error) {
-	gci, err := ValidateInvite(invite)
-	if err == nil {
-		if server, exists := p.GetContact(gci.ServerHost); !exists || !server.IsServer() {
-			return "", fmt.Errorf("unknown server. a server key bundle needs to be imported before this group can be verified")
-		}
-		group := new(Group)
-		group.Version = CurrentGroupVersion
-		group.GroupID = gci.GroupID
-		group.LocalID = GenerateRandomID()
-		copy(group.GroupKey[:], gci.SharedKey[:])
-		group.GroupServer = gci.ServerHost
-		group.Accepted = false
-		group.Attributes = make(map[string]string)
-		group.Attributes[attr.GetLocalScope("name")] = gci.GroupName
-		p.AddGroup(group)
-		return gci.GroupID, nil
-	}
-	return "", err
+// ProcessInvite adds a new group invite to the profile.
+func (p *Profile) ProcessInvite(gci *protocol.GroupChatInvite, peerHostname string) {
+	group := new(Group)
+	group.GroupID = gci.GetGroupName()
+	group.SignedGroupID = gci.GetSignedGroupId()
+	copy(group.GroupKey[:], gci.GetGroupSharedKey()[:])
+	group.GroupServer = gci.GetServerHost()
+	group.InitialMessage = gci.GetInitialMessage()[:]
+	group.Accepted = false
+	group.Owner = peerHostname
+	p.AddGroup(group)
 }
 
 // AddGroup is a convenience method for adding a group to a profile.
 func (p *Profile) AddGroup(group *Group) {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	_, exists := p.Groups[group.GroupID]
+	existingGroup, exists := p.Groups[group.GroupID]
 	if !exists {
+		owner, ok := p.GetContact(group.Owner)
+		if ok {
+			valid := ed25519.Verify(owner.Ed25519PublicKey, []byte(group.GroupID+group.GroupServer), group.SignedGroupID)
+			if valid {
+				p.lock.Lock()
+				defer p.lock.Unlock()
+				p.Groups[group.GroupID] = group
+			}
+		}
+	} else if exists && existingGroup.Owner == group.Owner {
+		p.lock.Lock()
+		defer p.lock.Unlock()
 		p.Groups[group.GroupID] = group
 	}
+
+	// If we are sent an invite or group update by someone who is not an owner
+	// then we reject the group.
 }
 
 // AttemptDecryption takes a ciphertext and signature and attempts to decrypt it under known groups.
-// If successful, adds the message to the group's timeline
-func (p *Profile) AttemptDecryption(ciphertext []byte, signature []byte) (bool, string, *Message, bool) {
+func (p *Profile) AttemptDecryption(ciphertext []byte, signature []byte) (bool, *Message) {
 	for _, group := range p.Groups {
 		success, dgm := group.DecryptMessage(ciphertext)
 		if success {
-			verified := p.VerifyGroupMessage(dgm.Onion, group.GroupID, ciphertext, signature)
+
+			// Assert that we know the owner of the group
+			owner, ok := p.Contacts[group.Owner]
+			if ok {
+				valid := ed25519.Verify(owner.Ed25519PublicKey, []byte(group.GroupID+group.GroupServer), dgm.SignedGroupId)
+				// If we can decrypt the message, but the group id is wrong that means that
+				// this message is from someone who was not invited to the group.
+				// As such this group has been compromised, probably by one of the other members.
+				// We set the flag to be handled by the UX and reject the message.
+				if !valid {
+					group.Compromised()
+					return false, nil
+				}
+			}
+
+			verified := p.VerifyGroupMessage(dgm.GetOnion(), group.GroupID, dgm.GetText(), dgm.GetTimestamp(), ciphertext, signature)
 
 			// So we have a message that has a valid group key, but the signature can't be verified.
 			// The most obvious explanation for this is that the group key has been compromised (or we are in an open group and the server is being malicious)
 			// Either way, someone who has the private key is being detectably bad so we are just going to throw this message away and mark the group as Compromised.
 			if !verified {
 				group.Compromised()
-				return false, group.GroupID, nil, false
+				return false, nil
 			}
-			message, seen := group.AddMessage(dgm, signature)
-			return true, group.GroupID, message, seen
+
+			return true, group.AddMessage(dgm, signature)
 		}
 	}
-
-	// If we couldn't find a group to decrypt the message with we just return false. This is an expected case
-	return false, "", nil, false
+	return false, nil
 }
 
 func getRandomness(arr *[]byte) {
 	if _, err := io.ReadFull(rand.Reader, (*arr)[:]); err != nil {
-		if err != nil {
-			// If we can't do randomness, just crash something is very very wrong and we are not going
-			// to resolve it here....
-			panic(err.Error())
-		}
+		utils.CheckError(err)
 	}
 }
 
 // EncryptMessageToGroup when given a message and a group, encrypts and signs the message under the group and
 // profile
 func (p *Profile) EncryptMessageToGroup(message string, groupID string) ([]byte, []byte, error) {
-
-	if len(message) > MaxGroupMessageLength {
-		return nil, nil, errors.New("group message is too long")
-	}
-
-	group := p.GetGroup(groupID)
+	group := p.GetGroupByGroupID(groupID)
 	if group != nil {
 		timestamp := time.Now().Unix()
 
-		// Select the latest message from the timeline as a reference point.
 		var prevSig []byte
 		if len(group.Timeline.Messages) > 0 {
 			prevSig = group.Timeline.Messages[len(group.Timeline.Messages)-1].Signature
 		} else {
-			prevSig = []byte(group.GroupID)
+			prevSig = group.SignedGroupID
 		}
 
-		lenPadding := MaxGroupMessageLength - len(message)
+		lenPadding := 1024 - len(message)
 		padding := make([]byte, lenPadding)
 		getRandomness(&padding)
-		hexGroupID, err := hex.DecodeString(group.GroupID)
-		if err != nil {
-			return nil, nil, err
-		}
 
-		dm := &groups.DecryptedGroupMessage{
-			Onion:              p.Onion,
-			Text:               message,
-			SignedGroupID:      hexGroupID,
-			Timestamp:          uint64(timestamp),
+		dm := &protocol.DecryptedGroupMessage{
+			Onion:              proto.String(p.Onion),
+			Text:               proto.String(message),
+			SignedGroupId:      group.SignedGroupID[:],
+			Timestamp:          proto.Int32(int32(timestamp)),
 			PreviousMessageSig: prevSig,
 			Padding:            padding[:],
 		}
-
 		ciphertext, err := group.EncryptMessage(dm)
 		if err != nil {
 			return nil, nil, err
 		}
 		signature := p.SignMessage(groupID + group.GroupServer + string(ciphertext))
-		group.AddSentMessage(dm, signature)
 		return ciphertext, signature, nil
 	}
 	return nil, nil, errors.New("group does not exist")
 }
-
-// GetCopy returns a full deep copy of the Profile struct and its members (timeline inclusion control by arg)
-func (p *Profile) GetCopy(timeline bool) *Profile {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-
-	newp := new(Profile)
-	bytes, _ := json.Marshal(p)
-	json.Unmarshal(bytes, &newp)
-
-	if timeline {
-		for groupID := range newp.Groups {
-			newp.Groups[groupID].Timeline = *p.Groups[groupID].Timeline.GetCopy()
-		}
-
-		for peerID := range newp.Contacts {
-			newp.Contacts[peerID].Timeline = *p.Contacts[peerID].Timeline.GetCopy()
-		}
-	}
-
-	return newp
-}

model/profile_test.go

@@ -1,6 +1,8 @@
 package model
 
 import (
+	"cwtch.im/cwtch/protocol"
+	"github.com/golang/protobuf/proto"
 	"testing"
 )
 
@@ -8,8 +10,15 @@ func TestProfileIdentity(t *testing.T) {
 	sarah := GenerateNewProfile("Sarah")
 	alice := GenerateNewProfile("Alice")
 
-	alice.AddContact(sarah.Onion, &sarah.PublicProfile)
-	if alice.Contacts[sarah.Onion].Name != "Sarah" {
+	message := sarah.GetCwtchIdentityPacket()
+
+	ci := &protocol.CwtchPeerPacket{}
+	err := proto.Unmarshal(message, ci)
+	if err != nil {
+		t.Errorf("alice should have added sarah as a contact %v", err)
+	}
+	alice.AddCwtchIdentity("sarah.onion", ci.GetCwtchIdentify())
+	if alice.Contacts["sarah.onion"].Name != "Sarah" {
 		t.Errorf("alice should have added sarah as a contact %v", alice.Contacts)
 	}
 
@@ -17,8 +26,8 @@ func TestProfileIdentity(t *testing.T) {
 		t.Errorf("alice should be only contact: %v", alice.GetContacts())
 	}
 
-	alice.SetAttribute("test", "hello world")
-	value, _ := alice.GetAttribute("test")
+	alice.SetCustomAttribute("test", "hello world")
+	value, _ := alice.GetCustomAttribute("test")
 	if value != "hello world" {
 		t.Errorf("value from custom attribute should have been 'hello world', instead was: %v", value)
 	}
@@ -31,9 +40,13 @@ func TestTrustPeer(t *testing.T) {
 	alice := GenerateNewProfile("Alice")
 	sarah.AddContact(alice.Onion, &alice.PublicProfile)
 	alice.AddContact(sarah.Onion, &sarah.PublicProfile)
-	alice.SetContactAuthorization(sarah.Onion, AuthApproved)
-	if alice.GetContactAuthorization(sarah.Onion) != AuthApproved {
-		t.Errorf("peer should be approved")
+	alice.TrustPeer(sarah.Onion)
+	if alice.IsBlocked(sarah.Onion) {
+		t.Errorf("peer should not be blocked")
+	}
+
+	if alice.TrustPeer("") == nil {
+		t.Errorf("trusting a non existent peer should error")
 	}
 }
 
@@ -42,13 +55,13 @@ func TestBlockPeer(t *testing.T) {
 	alice := GenerateNewProfile("Alice")
 	sarah.AddContact(alice.Onion, &alice.PublicProfile)
 	alice.AddContact(sarah.Onion, &sarah.PublicProfile)
-	alice.SetContactAuthorization(sarah.Onion, AuthBlocked)
-	if alice.GetContactAuthorization(sarah.Onion) != AuthBlocked {
-		t.Errorf("peer should be blocked")
+	alice.BlockPeer(sarah.Onion)
+	if !alice.IsBlocked(sarah.Onion) {
+		t.Errorf("peer should not be blocked")
 	}
 
-	if alice.SetContactAuthorization("", AuthUnknown) == nil {
-		t.Errorf("Seting Auth level of a non existent peer should error")
+	if alice.BlockPeer("") == nil {
+		t.Errorf("blocking a non existent peer should error")
 	}
 }
 
@@ -62,14 +75,14 @@ func TestRejectGroupInvite(t *testing.T) {
 	alice := GenerateNewProfile("Alice")
 	sarah.AddContact(alice.Onion, &alice.PublicProfile)
 	alice.AddContact(sarah.Onion, &sarah.PublicProfile)
-	// The lightest weight server entry possible (usually we would import a key bundle...)
-	sarah.AddContact("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd", &PublicProfile{Attributes: map[string]string{string(KeyTypeServerOnion): "2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd"}})
 
-	gid, invite, _ := alice.StartGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-	sarah.ProcessInvite(invite)
-	group := alice.GetGroup(gid)
+	gid, invite, _ := alice.StartGroup("aaa.onion")
+	gci := &protocol.CwtchPeerPacket{}
+	proto.Unmarshal(invite, gci)
+	sarah.ProcessInvite(gci.GetGroupChatInvite(), alice.Onion)
+	group := alice.GetGroupByGroupID(gid)
 	if len(sarah.Groups) == 1 {
-		if sarah.GetGroup(group.GroupID).Accepted {
+		if sarah.GetGroupByGroupID(group.GroupID).Accepted {
 			t.Errorf("Group should not be accepted")
 		}
 		sarah.RejectInvite(group.GroupID)
@@ -87,48 +100,47 @@ func TestProfileGroup(t *testing.T) {
 	sarah.AddContact(alice.Onion, &alice.PublicProfile)
 	alice.AddContact(sarah.Onion, &sarah.PublicProfile)
 
-	gid, invite, _ := alice.StartGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-
-	// The lightest weight server entry possible (usually we would import a key bundle...)
-	sarah.AddContact("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd", &PublicProfile{Attributes: map[string]string{string(KeyTypeServerOnion): "2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd"}})
-	sarah.ProcessInvite(invite)
+	gid, invite, _ := alice.StartGroupWithMessage("aaa.onion", []byte("Hello World"))
+	gci := &protocol.CwtchPeerPacket{}
+	proto.Unmarshal(invite, gci)
+	sarah.ProcessInvite(gci.GetGroupChatInvite(), alice.Onion)
 	if len(sarah.GetGroups()) != 1 {
 		t.Errorf("sarah should only be in 1 group instead: %v", sarah.GetGroups())
 	}
 
-	group := alice.GetGroup(gid)
+	group := alice.GetGroupByGroupID(gid)
 	sarah.AcceptInvite(group.GroupID)
 	c, s1, _ := sarah.EncryptMessageToGroup("Hello World", group.GroupID)
 	alice.AttemptDecryption(c, s1)
 
-	gid2, invite2, _ := alice.StartGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-	sarah.ProcessInvite(invite2)
-	group2 := alice.GetGroup(gid2)
+	gid2, invite2, _ := alice.StartGroup("bbb.onion")
+	gci2 := &protocol.CwtchPeerPacket{}
+	proto.Unmarshal(invite2, gci2)
+	sarah.ProcessInvite(gci2.GetGroupChatInvite(), alice.Onion)
+	group2 := alice.GetGroupByGroupID(gid2)
 	c2, s2, _ := sarah.EncryptMessageToGroup("Hello World", group2.GroupID)
 	alice.AttemptDecryption(c2, s2)
 
-	_, _, err := sarah.EncryptMessageToGroup(string(make([]byte, MaxGroupMessageLength*2)), group2.GroupID)
-	if err == nil {
-		t.Errorf("Overly long message should have returned an error")
+	sarahGroup := sarah.GetGroupByGroupID(group.GroupID)
+	im := sarahGroup.GetInitialMessage()
+	if string(im) != "Hello World" {
+		t.Errorf("Initial Message was not stored properly: %v", im)
 	}
 
 	bob := GenerateNewProfile("bob")
 	bob.AddContact(alice.Onion, &alice.PublicProfile)
-	// The lightest weight server entry possible (usually we would import a key bundle...)
-	bob.AddContact("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd", &PublicProfile{Attributes: map[string]string{string(KeyTypeServerOnion): "2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd"}})
-
-	bob.ProcessInvite(invite2)
+	bob.ProcessInvite(gci2.GetGroupChatInvite(), alice.Onion)
 	c3, s3, err := bob.EncryptMessageToGroup("Bobs Message", group2.GroupID)
 	if err == nil {
-		ok, _, message, _ := alice.AttemptDecryption(c3, s3)
+		ok, message := alice.AttemptDecryption(c3, s3)
 		if !ok {
 			t.Errorf("Bobs message to the group should be decrypted %v %v", message, ok)
 		}
 
 		eve := GenerateNewProfile("eve")
-		ok, _, _, _ = eve.AttemptDecryption(c3, s3)
+		ok, _ = eve.AttemptDecryption(c3, s3)
 		if ok {
-			t.Errorf("Eves hould not be able to decrypt Messages!")
+			t.Errorf("Eves hould not be able to decrypt messages!")
 		}
 	} else {
 		t.Errorf("Bob failed to encrypt a message to the group")

peer/connections/connectionsmanager.go

@@ -0,0 +1,149 @@
+package connections
+
+import (
+	"cwtch.im/cwtch/model"
+	"cwtch.im/cwtch/protocol"
+	"sync"
+	"time"
+)
+
+// Manager encapsulates all the logic necessary to manage outgoing peer and server connections.
+type Manager struct {
+	peerConnections   map[string]*PeerPeerConnection
+	serverConnections map[string]*PeerServerConnection
+	lock              sync.Mutex
+	breakChannel      chan bool
+}
+
+// NewConnectionsManager creates a new instance of Manager.
+func NewConnectionsManager() *Manager {
+	m := new(Manager)
+	m.peerConnections = make(map[string]*PeerPeerConnection)
+	m.serverConnections = make(map[string]*PeerServerConnection)
+	m.breakChannel = make(chan bool)
+	return m
+}
+
+// ManagePeerConnection creates a new PeerConnection for the given Host and Profile.
+func (m *Manager) ManagePeerConnection(host string, profile *model.Profile, dataHandler func(string, []byte) []byte) *PeerPeerConnection {
+	m.lock.Lock()
+	defer m.lock.Unlock()
+
+	_, exists := m.peerConnections[host]
+	if !exists {
+		ppc := NewPeerPeerConnection(host, profile, dataHandler)
+		go ppc.Run()
+		m.peerConnections[host] = ppc
+		return ppc
+	}
+	return m.peerConnections[host]
+}
+
+// ManageServerConnection creates a new ServerConnection for Host with the given callback handler.
+func (m *Manager) ManageServerConnection(host string, handler func(string, *protocol.GroupMessage)) {
+	m.lock.Lock()
+
+	_, exists := m.serverConnections[host]
+	if !exists {
+		psc := NewPeerServerConnection(host)
+		go psc.Run()
+		psc.GroupMessageHandler = handler
+		m.serverConnections[host] = psc
+	}
+	m.lock.Unlock()
+}
+
+// GetPeers returns a map of all peer connections with their state
+func (m *Manager) GetPeers() map[string]ConnectionState {
+	rm := make(map[string]ConnectionState)
+	m.lock.Lock()
+	for onion, ppc := range m.peerConnections {
+		rm[onion] = ppc.GetState()
+	}
+	m.lock.Unlock()
+	return rm
+}
+
+// GetServers returns a map of all server connections with their state.
+func (m *Manager) GetServers() map[string]ConnectionState {
+	rm := make(map[string]ConnectionState)
+	m.lock.Lock()
+	for onion, psc := range m.serverConnections {
+		rm[onion] = psc.GetState()
+	}
+	m.lock.Unlock()
+	return rm
+}
+
+// GetPeerPeerConnectionForOnion safely returns a given peer connection
+func (m *Manager) GetPeerPeerConnectionForOnion(host string) (ppc *PeerPeerConnection) {
+	m.lock.Lock()
+	ppc = m.peerConnections[host]
+	m.lock.Unlock()
+	return
+}
+
+// GetPeerServerConnectionForOnion safely returns a given host connection
+func (m *Manager) GetPeerServerConnectionForOnion(host string) (psc *PeerServerConnection) {
+	m.lock.Lock()
+	psc = m.serverConnections[host]
+	m.lock.Unlock()
+	return
+}
+
+// AttemptReconnections repeatedly attempts to reconnect with failed peers and servers.
+func (m *Manager) AttemptReconnections() {
+	timeout := time.Duration(0) // first pass right away
+
+	for {
+		select {
+		case <-time.After(timeout):
+			m.lock.Lock()
+			for _, ppc := range m.peerConnections {
+				if ppc.GetState() == FAILED {
+					go ppc.Run()
+				}
+			}
+			m.lock.Unlock()
+
+			m.lock.Lock()
+			for _, psc := range m.serverConnections {
+				if psc.GetState() == FAILED {
+					go psc.Run()
+				}
+			}
+			m.lock.Unlock()
+
+			// Launch Another Run In 30 Seconds
+			timeout = time.Duration(30 * time.Second)
+		case <-m.breakChannel:
+			return
+		}
+	}
+}
+
+// ClosePeerConnection closes an existing peer connection
+func (m *Manager) ClosePeerConnection(onion string) {
+	m.lock.Lock()
+	pc, ok := m.peerConnections[onion]
+	if ok {
+		pc.Close()
+		delete(m.peerConnections, onion)
+	}
+	m.lock.Unlock()
+}
+
+// Shutdown closes all connections under managment (freeing their goroutines)
+func (m *Manager) Shutdown() {
+	m.breakChannel <- true
+	m.lock.Lock()
+	for onion, ppc := range m.peerConnections {
+		ppc.Close()
+		delete(m.peerConnections, onion)
+	}
+	for onion, psc := range m.serverConnections {
+		psc.Close()
+		delete(m.serverConnections, onion)
+	}
+	m.lock.Unlock()
+}

peer/connections/connectsmanager_test.go

@@ -0,0 +1,10 @@
+package connections
+
+import (
+	"testing"
+)
+
+func TestConnectionsManager(t *testing.T) {
+	// TODO We need to encapsulate connections behind a well defined interface for tesintg
+	NewConnectionsManager()
+}

peer/connections/peerpeerconnection.go

@@ -0,0 +1,151 @@
+package connections
+
+import (
+	"cwtch.im/cwtch/model"
+	"cwtch.im/cwtch/peer/peer"
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/connection"
+	"git.openprivacy.ca/openprivacy/libricochet-go/identity"
+	"log"
+	"time"
+)
+
+// PeerPeerConnection encapsulates a single outgoing Peer->Peer connection
+type PeerPeerConnection struct {
+	connection.AutoConnectionHandler
+	PeerHostname string
+	state        ConnectionState
+	connection   *connection.Connection
+	profile      *model.Profile
+	dataHandler  func(string, []byte) []byte
+}
+
+// NewPeerPeerConnection creates a new peer connection for the given hostname and profile.
+func NewPeerPeerConnection(peerhostname string, profile *model.Profile, dataHandler func(string, []byte) []byte) *PeerPeerConnection {
+	ppc := new(PeerPeerConnection)
+	ppc.PeerHostname = peerhostname
+	ppc.profile = profile
+	ppc.dataHandler = dataHandler
+	ppc.Init()
+	return ppc
+}
+
+// GetState returns the current connection state
+func (ppc *PeerPeerConnection) GetState() ConnectionState {
+	return ppc.state
+}
+
+// ClientIdentity passes the given CwtchIdentity packet to the profile.
+func (ppc *PeerPeerConnection) ClientIdentity(ci *protocol.CwtchIdentity) {
+	ppc.profile.AddCwtchIdentity(ppc.PeerHostname, ci)
+}
+
+// HandleGroupInvite passes the given group invite tothe profile
+func (ppc *PeerPeerConnection) HandleGroupInvite(gci *protocol.GroupChatInvite) {
+	ppc.profile.ProcessInvite(gci, ppc.PeerHostname)
+}
+
+// GetClientIdentityPacket returns nil to avoid peers constantly sending identity packets to eachother.
+func (ppc *PeerPeerConnection) GetClientIdentityPacket() []byte {
+	return nil
+}
+
+// HandlePacket handles data packets on the optional data channel
+func (ppc *PeerPeerConnection) HandlePacket(data []byte) []byte {
+	return ppc.dataHandler(ppc.PeerHostname, data)
+}
+
+// SendPacket sends data packets on the optional data channel
+func (ppc *PeerPeerConnection) SendPacket(data []byte) {
+	ppc.WaitTilAuthenticated()
+	ppc.connection.Do(func() error {
+		channel := ppc.connection.Channel("im.cwtch.peer.data", channels.Outbound)
+		if channel != nil {
+			peerchannel, ok := channel.Handler.(*peer.CwtchPeerDataChannel)
+			if ok {
+				log.Printf("Sending packet\n")
+				peerchannel.SendMessage(data)
+			}
+		}
+		return nil
+	})
+}
+
+// SendGroupInvite sends the given serialized invite packet to the Peer
+func (ppc *PeerPeerConnection) SendGroupInvite(invite []byte) {
+	ppc.WaitTilAuthenticated()
+	ppc.connection.Do(func() error {
+		channel := ppc.connection.Channel("im.cwtch.peer", channels.Outbound)
+		if channel != nil {
+			peerchannel, ok := channel.Handler.(*peer.CwtchPeerChannel)
+			if ok {
+				log.Printf("Sending group invite packet\n")
+				peerchannel.SendMessage(invite)
+			}
+		}
+		return nil
+	})
+}
+
+// WaitTilAuthenticated waits until the underlying connection is authenticated
+func (ppc *PeerPeerConnection) WaitTilAuthenticated() {
+	for {
+		if ppc.GetState() == AUTHENTICATED {
+			break
+		}
+		time.Sleep(time.Second * 5)
+	}
+}
+
+// Run manages the setup and teardown of a peer->peer connection
+func (ppc *PeerPeerConnection) Run() error {
+	ppc.state = CONNECTING
+	rc, err := goricochet.Open(ppc.PeerHostname)
+	if err == nil {
+		rc.TraceLog(false)
+		ppc.connection = rc
+		ppc.state = CONNECTED
+		_, err := connection.HandleOutboundConnection(ppc.connection).ProcessAuthAsV3Client(identity.InitializeV3(ppc.profile.Name, &ppc.profile.Ed25519PrivateKey, &ppc.profile.Ed25519PublicKey))
+		if err == nil {
+			ppc.state = AUTHENTICATED
+			go func() {
+				ppc.connection.Do(func() error {
+					ppc.connection.RequestOpenChannel("im.cwtch.peer", &peer.CwtchPeerChannel{Handler: ppc})
+					return nil
+				})
+
+				if ppc.dataHandler != nil {
+					ppc.connection.Do(func() error {
+						ppc.connection.RequestOpenChannel("im.cwtch.peer.data", &peer.CwtchPeerDataChannel{Handler: ppc})
+						return nil
+					})
+				}
+
+				time.Sleep(time.Second * 1)
+				ppc.connection.Do(func() error {
+					channel := ppc.connection.Channel("im.cwtch.peer", channels.Outbound)
+					if channel != nil {
+						peerchannel, ok := channel.Handler.(*peer.CwtchPeerChannel)
+						if ok {
+							peerchannel.SendMessage(ppc.profile.GetCwtchIdentityPacket())
+						}
+					}
+					return nil
+				})
+
+			}()
+
+			ppc.connection.Process(ppc)
+		}
+	}
+	ppc.state = FAILED
+	return err
+}
+
+// Close closes the connection
+func (ppc *PeerPeerConnection) Close() {
+	ppc.state = KILLED
+	ppc.connection.Conn.Close()
+}

peer/connections/peerpeerconnection_test.go

@@ -0,0 +1,111 @@
+package connections
+
+import (
+	"crypto/rand"
+	"cwtch.im/cwtch/model"
+	"cwtch.im/cwtch/peer/peer"
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/connection"
+	"git.openprivacy.ca/openprivacy/libricochet-go/identity"
+	"golang.org/x/crypto/ed25519"
+	"net"
+	"testing"
+	"time"
+)
+
+func PeerAuthValid(hostname string, key ed25519.PublicKey) (allowed, known bool) {
+	return true, true
+}
+
+func runtestpeer(t *testing.T, tp *TestPeer, identity identity.Identity) {
+	ln, _ := net.Listen("tcp", "127.0.0.1:5452")
+	conn, _ := ln.Accept()
+	defer conn.Close()
+
+	rc, err := goricochet.NegotiateVersionInbound(conn)
+	if err != nil {
+		t.Errorf("Negotiate Version Error: %v", err)
+	}
+	rc.TraceLog(true)
+	err = connection.HandleInboundConnection(rc).ProcessAuthAsV3Server(identity, PeerAuthValid)
+	if err != nil {
+		t.Errorf("ServerAuth Error: %v", err)
+	}
+	tp.RegisterChannelHandler("im.cwtch.peer", func() channels.Handler {
+		cpc := new(peer.CwtchPeerChannel)
+		cpc.Handler = tp
+		return cpc
+	})
+
+	go func() {
+		alice := model.GenerateNewProfile("alice")
+		time.Sleep(time.Second * 1)
+		rc.Do(func() error {
+			channel := rc.Channel("im.cwtch.peer", channels.Inbound)
+			if channel != nil {
+				peerchannel, ok := channel.Handler.(*peer.CwtchPeerChannel)
+				if ok {
+					peerchannel.SendMessage(alice.GetCwtchIdentityPacket())
+				}
+			}
+			return nil
+		})
+	}()
+
+	rc.Process(tp)
+}
+
+type TestPeer struct {
+	connection.AutoConnectionHandler
+	ReceivedIdentityPacket bool
+	ReceivedGroupInvite    bool
+}
+
+func (tp *TestPeer) ClientIdentity(ci *protocol.CwtchIdentity) {
+	tp.ReceivedIdentityPacket = true
+}
+
+func (tp *TestPeer) HandleGroupInvite(gci *protocol.GroupChatInvite) {
+	tp.ReceivedGroupInvite = true
+}
+
+func (tp *TestPeer) GetClientIdentityPacket() []byte {
+	return nil
+}
+
+func TestPeerPeerConnection(t *testing.T) {
+	pub, priv, _ := ed25519.GenerateKey(rand.Reader)
+	identity := identity.InitializeV3("", &priv, &pub)
+
+	profile := model.GenerateNewProfile("alice")
+	hostname := identity.Hostname()
+	ppc := NewPeerPeerConnection("127.0.0.1:5452|"+hostname, profile, nil)
+
+	tp := new(TestPeer)
+	tp.Init()
+	go runtestpeer(t, tp, identity)
+	state := ppc.GetState()
+	if state != DISCONNECTED {
+		t.Errorf("new connections should start in disconnected state")
+	}
+	go ppc.Run()
+	time.Sleep(time.Second * 5)
+	state = ppc.GetState()
+	if state != AUTHENTICATED {
+		t.Errorf("connection state should be authenticated(3), was instead %v", state)
+	}
+
+	if tp.ReceivedIdentityPacket == false {
+		t.Errorf("should have received an identity packet")
+	}
+
+	_, invite, _ := profile.StartGroup("aaa.onion")
+	ppc.SendGroupInvite(invite)
+	time.Sleep(time.Second * 3)
+	if tp.ReceivedGroupInvite == false {
+		t.Errorf("should have received an group invite packet")
+	}
+
+}

peer/connections/peerserverconnection.go

@@ -0,0 +1,126 @@
+package connections
+
+import (
+	"crypto/rand"
+	"cwtch.im/cwtch/peer/fetch"
+	"cwtch.im/cwtch/peer/listen"
+	"cwtch.im/cwtch/peer/send"
+	"cwtch.im/cwtch/protocol"
+	"errors"
+	"git.openprivacy.ca/openprivacy/libricochet-go"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/connection"
+	"git.openprivacy.ca/openprivacy/libricochet-go/identity"
+	"golang.org/x/crypto/ed25519"
+	"log"
+	"time"
+)
+
+// PeerServerConnection encapsulates a single Peer->Server connection
+type PeerServerConnection struct {
+	connection.AutoConnectionHandler
+	Server     string
+	state      ConnectionState
+	connection *connection.Connection
+
+	GroupMessageHandler func(string, *protocol.GroupMessage)
+}
+
+// NewPeerServerConnection creates a new Peer->Server outbound connection
+func NewPeerServerConnection(serverhostname string) *PeerServerConnection {
+	psc := new(PeerServerConnection)
+	psc.Server = serverhostname
+	psc.Init()
+	return psc
+}
+
+// GetState returns the current connection state
+func (psc *PeerServerConnection) GetState() ConnectionState {
+	return psc.state
+}
+
+// Run manages the setup and teardown of a peer server connection
+func (psc *PeerServerConnection) Run() error {
+	log.Printf("Connecting to %v", psc.Server)
+	rc, err := goricochet.Open(psc.Server)
+	if err == nil {
+		rc.TraceLog(true)
+		psc.connection = rc
+		psc.state = CONNECTED
+		pub, priv, _ := ed25519.GenerateKey(rand.Reader)
+		if err == nil {
+			_, err := connection.HandleOutboundConnection(psc.connection).ProcessAuthAsV3Client(identity.InitializeV3("cwtchpeer", &priv, &pub))
+			if err == nil {
+				psc.state = AUTHENTICATED
+
+				go func() {
+					psc.connection.Do(func() error {
+						psc.connection.RequestOpenChannel("im.cwtch.server.fetch", &fetch.CwtchPeerFetchChannel{Handler: psc})
+						return nil
+					})
+
+					psc.connection.Do(func() error {
+						psc.connection.RequestOpenChannel("im.cwtch.server.listen", &listen.CwtchPeerListenChannel{Handler: psc})
+						return nil
+					})
+				}()
+				psc.connection.Process(psc)
+			}
+		}
+	}
+	psc.state = FAILED
+	return err
+}
+
+// Break makes Run() return and prevents processing, but doesn't close the connection.
+func (psc *PeerServerConnection) Break() error {
+	return psc.connection.Break()
+}
+
+// SendGroupMessage sends the given protocol message to the Server.
+func (psc *PeerServerConnection) SendGroupMessage(gm *protocol.GroupMessage) error {
+	if psc.state != AUTHENTICATED {
+		return errors.New("peer is not yet connected & authenticated to server cannot send message")
+	}
+
+	err := psc.connection.Do(func() error {
+		psc.connection.RequestOpenChannel("im.cwtch.server.send", &send.CwtchPeerSendChannel{})
+		return nil
+	})
+
+	errCount := 0
+	for errCount < 5 {
+		time.Sleep(time.Second * 1)
+		err = psc.connection.Do(func() error {
+			channel := psc.connection.Channel("im.cwtch.server.send", channels.Outbound)
+			if channel == nil {
+				return errors.New("no channel found")
+			}
+			sendchannel, ok := channel.Handler.(*send.CwtchPeerSendChannel)
+			if ok {
+				return sendchannel.SendGroupMessage(gm)
+			}
+			return errors.New("channel is not a peer send channel (this should definitely not happen)")
+		})
+
+		if err != nil {
+			errCount++
+		} else {
+			return nil
+		}
+	}
+
+	return err
+}
+
+// Close shuts down the connection (freeing the handler goroutines)
+func (psc *PeerServerConnection) Close() {
+	psc.state = KILLED
+	psc.connection.Conn.Close()
+}
+
+// HandleGroupMessage passes the given group message back to the profile.
+func (psc *PeerServerConnection) HandleGroupMessage(gm *protocol.GroupMessage) {
+	log.Printf("Received Group Message: %v", gm)
+	psc.GroupMessageHandler(psc.Server, gm)
+}

peer/connections/peerserverconnection_test.go

@@ -0,0 +1,103 @@
+package connections
+
+import (
+	"crypto/rand"
+	"cwtch.im/cwtch/protocol"
+	"cwtch.im/cwtch/server/fetch"
+	"cwtch.im/cwtch/server/send"
+	"git.openprivacy.ca/openprivacy/libricochet-go"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/connection"
+	"git.openprivacy.ca/openprivacy/libricochet-go/identity"
+	"golang.org/x/crypto/ed25519"
+	"net"
+	"testing"
+	"time"
+)
+
+func ServerAuthValid(hostname string, key ed25519.PublicKey) (allowed, known bool) {
+	return true, true
+}
+
+type TestServer struct {
+	connection.AutoConnectionHandler
+	Received bool
+}
+
+func (ts *TestServer) HandleGroupMessage(gm *protocol.GroupMessage) {
+	ts.Received = true
+}
+
+func (ts *TestServer) HandleFetchRequest() []*protocol.GroupMessage {
+	return []*protocol.GroupMessage{{Ciphertext: []byte("hello"), Signature: []byte{}, Spamguard: []byte{}}, {Ciphertext: []byte("hello"), Signature: []byte{}, Spamguard: []byte{}}}
+}
+
+func runtestserver(t *testing.T, ts *TestServer, identity identity.Identity) {
+	ln, _ := net.Listen("tcp", "127.0.0.1:5451")
+	conn, _ := ln.Accept()
+	defer conn.Close()
+
+	rc, err := goricochet.NegotiateVersionInbound(conn)
+	if err != nil {
+		t.Errorf("Negotiate Version Error: %v", err)
+	}
+	rc.TraceLog(true)
+	err = connection.HandleInboundConnection(rc).ProcessAuthAsV3Server(identity, ServerAuthValid)
+	if err != nil {
+		t.Errorf("ServerAuth Error: %v", err)
+	}
+
+	ts.RegisterChannelHandler("im.cwtch.server.send", func() channels.Handler {
+		server := new(send.CwtchServerSendChannel)
+		server.Handler = ts
+		return server
+	})
+
+	ts.RegisterChannelHandler("im.cwtch.server.fetch", func() channels.Handler {
+		server := new(fetch.CwtchServerFetchChannel)
+		server.Handler = ts
+		return server
+	})
+
+	rc.Process(ts)
+}
+
+func TestPeerServerConnection(t *testing.T) {
+	pub, priv, _ := ed25519.GenerateKey(rand.Reader)
+
+	identity := identity.InitializeV3("", &priv, &pub)
+
+	ts := new(TestServer)
+	ts.Init()
+	go runtestserver(t, ts, identity)
+	onionAddr := identity.Hostname()
+
+	psc := NewPeerServerConnection("127.0.0.1:5451|" + onionAddr)
+	numcalls := 0
+	psc.GroupMessageHandler = func(s string, gm *protocol.GroupMessage) {
+		numcalls++
+	}
+	state := psc.GetState()
+	if state != DISCONNECTED {
+		t.Errorf("new connections should start in disconnected state")
+	}
+	time.Sleep(time.Second * 1)
+	go psc.Run()
+	time.Sleep(time.Second * 2)
+	state = psc.GetState()
+	if state != AUTHENTICATED {
+		t.Errorf("connection should now be authed(%v), instead was %v", AUTHENTICATED, state)
+	}
+
+	gm := &protocol.GroupMessage{Ciphertext: []byte("hello"), Signature: []byte{}}
+	psc.SendGroupMessage(gm)
+	time.Sleep(time.Second * 2)
+	if ts.Received == false {
+		t.Errorf("Should have received a group message in test server")
+	}
+
+	if numcalls != 2 {
+		t.Errorf("Should have received 2 calls from fetch request, instead received %v", numcalls)
+	}
+
+}

peer/connections/state.go

@@ -7,25 +7,17 @@ type ConnectionState int
 // DISCONNECTED - No existing connection has been made, or all attempts have failed
 // CONNECTING - We are in the process of attempting to connect to a given endpoint
 // CONNECTED - We have connected but not yet authenticated
-// AUTHENTICATED - im.ricochet.auth-hidden-server has succeeded on the connection.
-// SYNCED - we have pulled all the messages for groups from the server and are ready to send
+// AUTHENTICATED - im.ricochet.auth-hidden-server has succeeded on thec onnection.
 const (
 	DISCONNECTED ConnectionState = iota
 	CONNECTING
 	CONNECTED
 	AUTHENTICATED
-	SYNCED
 	FAILED
 	KILLED
 )
 
 var (
-	// ConnectionStateName allows conversion of states to their string representations
-	ConnectionStateName = []string{"Disconnected", "Connecting", "Connected", "Authenticated", "Synced", "Failed", "Killed"}
+	// ConnectionStateName allows conversaion of states to their string representations
+	ConnectionStateName = []string{"Disconnected", "Connecting", "Connected", "Authenticated", "Failed", "Killed"}
 )
-
-// ConnectionStateToType allows conversion of strings to their state type
-func ConnectionStateToType() map[string]ConnectionState {
-	return map[string]ConnectionState{"Disconnected": DISCONNECTED, "Connecting": CONNECTING,
-		"Connected": CONNECTED, "Authenticated": AUTHENTICATED, "Synced": SYNCED, "Failed": FAILED, "Killed": KILLED}
-}

peer/cwtch_peer_test.go

@@ -0,0 +1,74 @@
+package peer
+
+import (
+	"testing"
+)
+
+func TestCwtchPeerGenerate(t *testing.T) {
+
+	alice, _ := NewCwtchPeer("alice", "testpass", "./alice.json")
+	alice.Save()
+
+	aliceLoaded, err := LoadCwtchPeer("./alice.json", "testpass")
+	if err != nil || aliceLoaded.GetProfile().Name != "alice" {
+		t.Errorf("something went wrong saving and loading profiles %v %v", err, aliceLoaded)
+	}
+
+	groupID, _, _ := aliceLoaded.StartGroup("test.server")
+	exportedGroup, _ := aliceLoaded.ExportGroup(groupID)
+	t.Logf("Exported Group: %v from %v", exportedGroup, aliceLoaded.GetProfile().Onion)
+
+	importedGroupID, err := alice.ImportGroup(exportedGroup)
+	group := alice.GetGroup(importedGroupID)
+	t.Logf("Imported Group: %v, err := %v %v", group, err, importedGroupID)
+
+}
+
+func TestTrustPeer(t *testing.T) {
+	groupName := "test.server"
+	alice, _ := NewCwtchPeer("alice", "alicepass", "")
+	bob, _ := NewCwtchPeer("bob", "bobpass", "")
+
+	bobOnion := bob.GetProfile().Onion
+	aliceOnion := alice.GetProfile().Onion
+
+	groupID, _, err := alice.StartGroup(groupName)
+	if err != nil {
+		t.Error(err)
+	}
+
+	groupAlice := alice.GetGroup(groupID)
+	if groupAlice.GroupID != groupID {
+		t.Errorf("Alice should be part of group %v, got %v instead", groupID, groupAlice)
+	}
+
+	exportedGroup, err := alice.ExportGroup(groupID)
+	if err != nil {
+		t.Error(err)
+	}
+
+	err = alice.InviteOnionToGroup(bobOnion, groupID)
+	if err == nil {
+		t.Errorf("onion invitation should fail since alice does no trust bob")
+	}
+
+	err = alice.TrustPeer(bobOnion)
+	if err == nil {
+		t.Errorf("trust peer should fail since alice does not know about bob")
+	}
+
+	// bob adds alice contact by importing serialized group created by alice
+	_, err = bob.ImportGroup(exportedGroup)
+	if err != nil {
+		t.Error(err)
+	}
+	err = bob.TrustPeer(aliceOnion)
+	if err != nil {
+		t.Errorf("bob must be able to trust alice, got %v", err)
+	}
+
+	err = bob.InviteOnionToGroup(aliceOnion, groupID)
+	if err == nil {
+		t.Errorf("bob trusts alice but peer connection is not ready yet. should not be able to invite her to group, instead got: %v", err)
+	}
+}

peer/fetch/peer_fetch_channel.go

@@ -0,0 +1,103 @@
+package fetch
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"errors"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+)
+
+// CwtchPeerFetchChannel is the peer implementation of the im.cwtch.server.fetch
+// channel.
+type CwtchPeerFetchChannel struct {
+	channel *channels.Channel
+	Handler CwtchPeerFetchChannelHandler
+}
+
+// CwtchPeerFetchChannelHandler should be implemented by peers to receive new messages.
+type CwtchPeerFetchChannelHandler interface {
+	HandleGroupMessage(*protocol.GroupMessage)
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.server.fetch)
+func (cpfc *CwtchPeerFetchChannel) Type() string {
+	return "im.cwtch.server.fetch"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cpfc *CwtchPeerFetchChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch server channels only client can open
+func (cpfc *CwtchPeerFetchChannel) OnlyClientCanOpen() bool {
+	return true
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cpfc *CwtchPeerFetchChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are not bidrectional
+func (cpfc *CwtchPeerFetchChannel) Bidirectional() bool {
+	return false
+}
+
+// RequiresAuthentication - Cwtch server channels require no auth.
+func (cpfc *CwtchPeerFetchChannel) RequiresAuthentication() string {
+	return "none"
+}
+
+// OpenInbound - cwtch server peer implementations shouldnever respond to inbound requests
+func (cpfc *CwtchPeerFetchChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	return nil, errors.New("client does not receive inbound listen channels")
+}
+
+// OpenOutbound sets up a new cwtch fetch channel
+func (cpfc *CwtchPeerFetchChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	cpfc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.OpenChannel(channel.ID, cpfc.Type()), nil
+}
+
+// OpenOutboundResult confirms a previous open channel request
+func (cpfc *CwtchPeerFetchChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	if err == nil {
+		if crm.GetOpened() {
+			cpfc.channel.Pending = false
+			cpfc.FetchRequest()
+		}
+	}
+}
+
+// FetchRequest sends a FetchMessage to the Server.
+func (cpfc *CwtchPeerFetchChannel) FetchRequest() error {
+	if cpfc.channel.Pending == false {
+		fm := &protocol.FetchMessage{}
+		csp := &protocol.CwtchServerPacket{
+			FetchMessage: fm,
+		}
+		packet, _ := proto.Marshal(csp)
+		cpfc.channel.SendMessage(packet)
+	} else {
+		return errors.New("channel isn't set up yet")
+	}
+	return nil
+}
+
+// Packet is called for each raw packet received on this channel.
+func (cpfc *CwtchPeerFetchChannel) Packet(data []byte) {
+	csp := &protocol.CwtchServerPacket{}
+	err := proto.Unmarshal(data, csp)
+	if err == nil {
+		if csp.GetGroupMessage() != nil {
+			gm := csp.GetGroupMessage()
+			// We create a new go routine here to avoid leaking any information about processing time
+			// TODO Server can probably try to use this to DoS a peer
+			go cpfc.Handler.HandleGroupMessage(gm)
+		}
+	}
+}

peer/fetch/peer_fetch_channel_test.go

@@ -0,0 +1,92 @@
+package fetch
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+	"time"
+)
+
+type TestHandler struct {
+	Received bool
+}
+
+func (th *TestHandler) HandleGroupMessage(m *protocol.GroupMessage) {
+	th.Received = true
+}
+
+func TestPeerFetchChannelAttributes(t *testing.T) {
+	cssc := new(CwtchPeerFetchChannel)
+	if cssc.Type() != "im.cwtch.server.fetch" {
+		t.Errorf("cwtch channel type is incorrect %v", cssc.Type())
+	}
+
+	if !cssc.OnlyClientCanOpen() {
+		t.Errorf("only clients should be able to open im.cwtch.server.Fetch channel")
+	}
+
+	if cssc.Bidirectional() {
+		t.Errorf("im.cwtch.server.fetch should not be bidirectional")
+	}
+
+	if !cssc.Singleton() {
+		t.Errorf("im.cwtch.server.fetch should be a Singleton")
+	}
+
+	if cssc.RequiresAuthentication() != "none" {
+		t.Errorf("cwtch channel required auth is incorrect %v", cssc.RequiresAuthentication())
+	}
+
+}
+func TestPeerFetchChannelOpenInbound(t *testing.T) {
+	cssc := new(CwtchPeerFetchChannel)
+	channel := new(channels.Channel)
+	_, err := cssc.OpenInbound(channel, nil)
+	if err == nil {
+		t.Errorf("client implementation of im.cwtch.server.Fetch should never open an inbound channel")
+	}
+}
+
+func TestPeerFetchChannel(t *testing.T) {
+	pfc := new(CwtchPeerFetchChannel)
+	th := new(TestHandler)
+	pfc.Handler = th
+	channel := new(channels.Channel)
+	channel.ID = 3
+	channel.SendMessage = func([]byte) {}
+	channel.CloseChannel = func() {}
+	result, err := pfc.OpenOutbound(channel)
+	if err != nil {
+		t.Errorf("expected result but also got non-nil error: result:%v, err: %v", result, err)
+	}
+
+	cr := &Protocol_Data_Control.ChannelResult{
+		ChannelIdentifier: proto.Int32(3),
+		Opened:            proto.Bool(true),
+	}
+
+	pfc.OpenOutboundResult(nil, cr)
+	if channel.Pending {
+		t.Errorf("once opened channel should no longer be pending")
+	}
+
+	csp := &protocol.CwtchServerPacket{
+		GroupMessage: &protocol.GroupMessage{
+			Ciphertext: []byte("hello"), Signature: []byte{}, Spamguard: []byte{},
+		},
+	}
+	packet, _ := proto.Marshal(csp)
+
+	pfc.Packet(packet)
+
+	time.Sleep(time.Second * 2)
+
+	if th.Received != true {
+		t.Errorf("group message should not have been received")
+	}
+
+	pfc.Closed(nil)
+
+}

peer/listen/peer_listen_channel.go

@@ -0,0 +1,86 @@
+package listen
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"errors"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+)
+
+// CwtchPeerListenChannel is the peer implementation of im.cwtch.server.listen
+type CwtchPeerListenChannel struct {
+	channel *channels.Channel
+	Handler CwtchPeerSendChannelHandler
+}
+
+// CwtchPeerSendChannelHandler is implemented by peers who want to listen to new messages
+type CwtchPeerSendChannelHandler interface {
+	HandleGroupMessage(*protocol.GroupMessage)
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.server.listen".
+func (cplc *CwtchPeerListenChannel) Type() string {
+	return "im.cwtch.server.listen"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cplc *CwtchPeerListenChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch server channels can only be opened by peers
+func (cplc *CwtchPeerListenChannel) OnlyClientCanOpen() bool {
+	return true
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cplc *CwtchPeerListenChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are not bidrectional
+func (cplc *CwtchPeerListenChannel) Bidirectional() bool {
+	return false
+}
+
+// RequiresAuthentication - Cwtch channels require no auth channels
+func (cplc *CwtchPeerListenChannel) RequiresAuthentication() string {
+	return "none"
+}
+
+// OpenInbound - peers should never respond to open inbound requests from servers
+func (cplc *CwtchPeerListenChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	return nil, errors.New("client does not receive inbound listen channels")
+}
+
+// OpenOutbound sets up a new server listen channel
+func (cplc *CwtchPeerListenChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	cplc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.OpenChannel(channel.ID, cplc.Type()), nil
+}
+
+// OpenOutboundResult confirms a previous open channel request
+func (cplc *CwtchPeerListenChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	if err == nil {
+		if crm.GetOpened() {
+			cplc.channel.Pending = false
+		}
+	}
+}
+
+// Packet is called for each server packet received on this channel.
+func (cplc *CwtchPeerListenChannel) Packet(data []byte) {
+	csp := &protocol.CwtchServerPacket{}
+	err := proto.Unmarshal(data, csp)
+	if err == nil {
+		if csp.GetGroupMessage() != nil {
+			gm := csp.GetGroupMessage()
+			// We create a new go routine here to avoid leaking any information about processing time
+			// TODO Server can probably try to use this to DoS a peer
+			go cplc.Handler.HandleGroupMessage(gm)
+		}
+	}
+}

peer/listen/peer_listen_channel_test.go

@@ -0,0 +1,89 @@
+package listen
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+	"time"
+)
+
+type TestHandler struct {
+	Received bool
+}
+
+func (th *TestHandler) HandleGroupMessage(m *protocol.GroupMessage) {
+	th.Received = true
+}
+
+func TestPeerListenChannelAttributes(t *testing.T) {
+	cssc := new(CwtchPeerListenChannel)
+	if cssc.Type() != "im.cwtch.server.listen" {
+		t.Errorf("cwtch channel type is incorrect %v", cssc.Type())
+	}
+
+	if !cssc.OnlyClientCanOpen() {
+		t.Errorf("only clients should be able to open im.cwtch.server.listen channel")
+	}
+
+	if cssc.Bidirectional() {
+		t.Errorf("im.cwtch.server.listen should not be bidirectional")
+	}
+
+	if !cssc.Singleton() {
+		t.Errorf("im.cwtch.server.listen should be a Singleton")
+	}
+
+	if cssc.RequiresAuthentication() != "none" {
+		t.Errorf("cwtch channel required auth is incorrect %v", cssc.RequiresAuthentication())
+	}
+
+}
+func TestPeerListenChannelOpenInbound(t *testing.T) {
+	cssc := new(CwtchPeerListenChannel)
+	channel := new(channels.Channel)
+	_, err := cssc.OpenInbound(channel, nil)
+	if err == nil {
+		t.Errorf("client implementation of im.cwtch.server.Listen should never open an inbound channel")
+	}
+}
+
+func TestPeerListenChannel(t *testing.T) {
+	pfc := new(CwtchPeerListenChannel)
+	th := new(TestHandler)
+	pfc.Handler = th
+	channel := new(channels.Channel)
+	channel.ID = 3
+	result, err := pfc.OpenOutbound(channel)
+	if err != nil {
+		t.Errorf("expected result but also got non-nil error: result:%v, err: %v", result, err)
+	}
+
+	cr := &Protocol_Data_Control.ChannelResult{
+		ChannelIdentifier: proto.Int32(3),
+		Opened:            proto.Bool(true),
+	}
+
+	pfc.OpenOutboundResult(nil, cr)
+	if channel.Pending {
+		t.Errorf("once opened channel should no longer be pending")
+	}
+
+	csp := &protocol.CwtchServerPacket{
+		GroupMessage: &protocol.GroupMessage{Ciphertext: []byte("hello"), Signature: []byte{}, Spamguard: []byte{}},
+	}
+	packet, _ := proto.Marshal(csp)
+
+	pfc.Packet(packet)
+
+	// Wait for goroutine to run
+	time.Sleep(time.Second * 1)
+
+	if !th.Received {
+		t.Errorf("group message should have been received")
+	}
+
+	pfc.Closed(nil)
+
+}

peer/peer/peer_channel.go

@@ -0,0 +1,114 @@
+package peer
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"log"
+)
+
+// CwtchPeerChannel implements the ChannelHandler interface for a channel of
+// type "im.ricochet.Cwtch". The channel may be inbound or outbound.
+//
+// CwtchPeerChannel implements protocol-level sanity and state validation, but
+// does not handle or acknowledge Cwtch messages. The application must provide
+// a CwtchPeerChannelHandler implementation to handle Cwtch events.
+type CwtchPeerChannel struct {
+	// Methods of Handler are called for Cwtch events on this channel
+	Handler CwtchPeerChannelHandler
+	channel *channels.Channel
+}
+
+// CwtchPeerChannelHandler is implemented by an application type to receive
+// events from a CwtchPeerChannel.
+type CwtchPeerChannelHandler interface {
+	ClientIdentity(*protocol.CwtchIdentity)
+	HandleGroupInvite(*protocol.GroupChatInvite)
+	GetClientIdentityPacket() []byte
+}
+
+// SendMessage sends a raw message on this channel
+func (cpc *CwtchPeerChannel) SendMessage(data []byte) {
+	cpc.channel.SendMessage(data)
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.Cwtch".
+func (cpc *CwtchPeerChannel) Type() string {
+	return "im.cwtch.peer"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cpc *CwtchPeerChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch channels any side can open
+func (cpc *CwtchPeerChannel) OnlyClientCanOpen() bool {
+	return false
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cpc *CwtchPeerChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are not bidrectional
+func (cpc *CwtchPeerChannel) Bidirectional() bool {
+	return false
+}
+
+// RequiresAuthentication - Cwtch channels require hidden service auth
+func (cpc *CwtchPeerChannel) RequiresAuthentication() string {
+	return "im.ricochet.auth.3dh"
+}
+
+// OpenInbound is the first method called for an inbound channel request.
+// If an error is returned, the channel is rejected. If a RawMessage is
+// returned, it will be sent as the ChannelResult message.
+func (cpc *CwtchPeerChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	cpc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.AckOpenChannel(channel.ID), nil
+}
+
+// OpenOutbound is the first method called for an outbound channel request.
+// If an error is returned, the channel is not opened. If a RawMessage is
+// returned, it will be sent as the OpenChannel message.
+func (cpc *CwtchPeerChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	cpc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.OpenChannel(channel.ID, cpc.Type()), nil
+}
+
+// OpenOutboundResult is called when a response is received for an
+// outbound OpenChannel request. If `err` is non-nil, the channel was
+// rejected and Closed will be called immediately afterwards. `raw`
+// contains the raw protocol message including any extension data.
+func (cpc *CwtchPeerChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	if err == nil {
+		if crm.GetOpened() {
+			cpc.channel.Pending = false
+		}
+	}
+}
+
+// Packet is called for each raw packet received on this channel.
+func (cpc *CwtchPeerChannel) Packet(data []byte) {
+	cpp := &protocol.CwtchPeerPacket{}
+	err := proto.Unmarshal(data, cpp)
+	if err == nil {
+		if cpp.GetCwtchIdentify() != nil {
+			cpc.Handler.ClientIdentity(cpp.GetCwtchIdentify())
+			pkt := cpc.Handler.GetClientIdentityPacket()
+			if pkt != nil {
+				cpc.SendMessage(pkt)
+			}
+		} else if cpp.GetGroupChatInvite() != nil {
+			cpc.Handler.HandleGroupInvite(cpp.GetGroupChatInvite())
+		}
+	} else {
+		log.Printf("Error Receivng Packet %v\n", err)
+	}
+}

peer/peer/peer_channel_test.go

@@ -0,0 +1,121 @@
+package peer
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+)
+
+func TestPeerChannelAttributes(t *testing.T) {
+	cssc := new(CwtchPeerChannel)
+	if cssc.Type() != "im.cwtch.peer" {
+		t.Errorf("cwtch channel type is incorrect %v", cssc.Type())
+	}
+
+	if cssc.OnlyClientCanOpen() {
+		t.Errorf("either side should be able to open im.cwtch.peer channel")
+	}
+
+	if cssc.Bidirectional() {
+		t.Errorf("im.cwtch.peer should not be bidirectional")
+	}
+
+	if !cssc.Singleton() {
+		t.Errorf("im.cwtch.server.listen should be a Singleton")
+	}
+
+	if cssc.RequiresAuthentication() != "im.ricochet.auth.3dh" {
+		t.Errorf("cwtch channel required auth is incorrect %v", cssc.RequiresAuthentication())
+	}
+}
+
+type TestHandler struct {
+	Received            bool
+	ReceviedGroupInvite bool
+}
+
+func (th *TestHandler) ClientIdentity(ci *protocol.CwtchIdentity) {
+	if ci.GetName() == "hello" {
+		th.Received = true
+	}
+}
+
+func (th *TestHandler) HandleGroupInvite(ci *protocol.GroupChatInvite) {
+	///if ci.GetName() == "hello" {
+	th.ReceviedGroupInvite = true
+	//}
+}
+
+func (th *TestHandler) GetClientIdentityPacket() []byte {
+	return nil
+}
+
+func TestPeerChannel(t *testing.T) {
+	th := new(TestHandler)
+	cpc := new(CwtchPeerChannel)
+	cpc.Handler = th
+	channel := new(channels.Channel)
+	channel.ID = 3
+	result, err := cpc.OpenOutbound(channel)
+	if err != nil {
+		t.Errorf("should have send open channel request instead %v, %v", result, err)
+	}
+
+	cpc2 := new(CwtchPeerChannel)
+	channel2 := new(channels.Channel)
+	channel2.ID = 3
+	sent := false
+	channel2.SendMessage = func(message []byte) {
+		sent = true
+	}
+
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(result[:], control)
+	ack, err := cpc2.OpenInbound(channel2, control.GetOpenChannel())
+	if err != nil {
+		t.Errorf("should have ack open channel request instead %v, %v", ack, err)
+	}
+
+	ackpacket := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(ack[:], ackpacket)
+	cpc.OpenOutboundResult(nil, ackpacket.GetChannelResult())
+	if channel.Pending != false {
+		t.Errorf("Channel should no longer be pending")
+	}
+
+	gm := &protocol.CwtchIdentity{
+		Name:             "hello",
+		Ed25519PublicKey: []byte{},
+	}
+
+	cpp := &protocol.CwtchPeerPacket{
+		CwtchIdentify: gm,
+	}
+	packet, _ := proto.Marshal(cpp)
+	cpc.Packet(packet)
+	if th.Received == false {
+		t.Errorf("Should have sent packet to handler")
+	}
+
+	cpc2.SendMessage(packet)
+	if sent == false {
+		t.Errorf("Should have sent packet to channel")
+	}
+
+	gci := &protocol.GroupChatInvite{
+		GroupName:      "hello",
+		GroupSharedKey: []byte{},
+		ServerHost:     "abc.onion",
+	}
+
+	cpp = &protocol.CwtchPeerPacket{
+		GroupChatInvite: gci,
+	}
+	packet, _ = proto.Marshal(cpp)
+	cpc.Packet(packet)
+	if th.ReceviedGroupInvite == false {
+		t.Errorf("Should have sent invite packet to handler")
+	}
+}

peer/peer/peer_data_channel.go

@@ -0,0 +1,98 @@
+package peer
+
+import (
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+)
+
+// CwtchPeerDataChannel implements the ChannelHandler interface for a channel of
+// type "im.cwtch.peer.data The channel may be inbound or outbound.
+//
+// CwtchPeerChannel implements protocol-level sanity and state validation, but
+// does not handle or acknowledge Cwtch messages. The application must provide
+// a CwtchPeerChannelHandler implementation to handle Cwtch events.
+type CwtchPeerDataChannel struct {
+	// Methods of Handler are called for Cwtch events on this channel
+	Handler CwtchPeerDataHandler
+	channel *channels.Channel
+}
+
+// CwtchPeerDataHandler is implemented by an application type to receive
+// events from a CwtchPeerChannel.
+type CwtchPeerDataHandler interface {
+	HandlePacket([]byte) []byte
+}
+
+// SendMessage sends a raw message on this channel
+func (cpc *CwtchPeerDataChannel) SendMessage(data []byte) {
+	cpc.channel.SendMessage(data)
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.Cwtch".
+func (cpc *CwtchPeerDataChannel) Type() string {
+	return "im.cwtch.peer.data"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cpc *CwtchPeerDataChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch channels any side can open
+func (cpc *CwtchPeerDataChannel) OnlyClientCanOpen() bool {
+	return false
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cpc *CwtchPeerDataChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are bidirectional
+func (cpc *CwtchPeerDataChannel) Bidirectional() bool {
+	return true
+}
+
+// RequiresAuthentication - Cwtch channels require hidden service auth
+func (cpc *CwtchPeerDataChannel) RequiresAuthentication() string {
+	return "im.ricochet.auth.3dh"
+}
+
+// OpenInbound is the first method called for an inbound channel request.
+// If an error is returned, the channel is rejected. If a RawMessage is
+// returned, it will be sent as the ChannelResult message.
+func (cpc *CwtchPeerDataChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	cpc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.AckOpenChannel(channel.ID), nil
+}
+
+// OpenOutbound is the first method called for an outbound channel request.
+// If an error is returned, the channel is not opened. If a RawMessage is
+// returned, it will be sent as the OpenChannel message.
+func (cpc *CwtchPeerDataChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	cpc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.OpenChannel(channel.ID, cpc.Type()), nil
+}
+
+// OpenOutboundResult is called when a response is received for an
+// outbound OpenChannel request. If `err` is non-nil, the channel was
+// rejected and Closed will be called immediately afterwards. `raw`
+// contains the raw protocol message including any extension data.
+func (cpc *CwtchPeerDataChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	if err == nil {
+		if crm.GetOpened() {
+			cpc.channel.Pending = false
+		}
+	}
+}
+
+// Packet is called for each raw packet received on this channel.
+func (cpc *CwtchPeerDataChannel) Packet(data []byte) {
+	ret := cpc.Handler.HandlePacket(data)
+	if len(ret) >= 0 {
+		cpc.channel.SendMessage(ret)
+	}
+}

peer/send/peer_send_channel.go

@@ -0,0 +1,95 @@
+package send
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"cwtch.im/cwtch/protocol/spam"
+	"errors"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+)
+
+// CwtchPeerSendChannel is the peer implementation of im.cwtch.server.send
+type CwtchPeerSendChannel struct {
+	channel   *channels.Channel
+	spamGuard spam.Guard
+	challenge []byte
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.server.send".
+func (cpsc *CwtchPeerSendChannel) Type() string {
+	return "im.cwtch.server.send"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cpsc *CwtchPeerSendChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch server channels only peers may open.
+func (cpsc *CwtchPeerSendChannel) OnlyClientCanOpen() bool {
+	return true
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cpsc *CwtchPeerSendChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are not bidrectional
+func (cpsc *CwtchPeerSendChannel) Bidirectional() bool {
+	return false
+}
+
+// RequiresAuthentication - Cwtch channels require no auth
+func (cpsc *CwtchPeerSendChannel) RequiresAuthentication() string {
+	return "none"
+}
+
+// OpenInbound should never be called on peers.
+func (cpsc *CwtchPeerSendChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	return nil, errors.New("client does not receive inbound listen channels")
+}
+
+// OpenOutbound is used to set up a new send channel and initialize spamguard
+func (cpsc *CwtchPeerSendChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	cpsc.spamGuard.Difficulty = 2
+	cpsc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.OpenChannel(channel.ID, cpsc.Type()), nil
+}
+
+// OpenOutboundResult confirms the open channel request and sets the spamguard challenge
+func (cpsc *CwtchPeerSendChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	if err == nil {
+		if crm.GetOpened() {
+			ce, _ := proto.GetExtension(crm, protocol.E_ServerNonce)
+			cpsc.challenge = ce.([]byte)[:]
+			cpsc.channel.Pending = false
+		}
+	}
+}
+
+// SendGroupMessage performs the spamguard proof of work and sends a message.
+func (cpsc *CwtchPeerSendChannel) SendGroupMessage(gm *protocol.GroupMessage) error {
+	if cpsc.channel.Pending == false {
+		sgsolve := cpsc.spamGuard.SolveChallenge(cpsc.challenge, gm.GetCiphertext())
+		gm.Spamguard = sgsolve[:]
+		csp := &protocol.CwtchServerPacket{
+			GroupMessage: gm,
+		}
+		packet, _ := proto.Marshal(csp)
+		cpsc.channel.SendMessage(packet)
+		cpsc.channel.CloseChannel()
+	} else {
+		return errors.New("channel isn't set up yet")
+	}
+	return nil
+}
+
+// Packet should never be
+func (cpsc *CwtchPeerSendChannel) Packet(data []byte) {
+	// If we receive a packet on this channel, close the connection
+	cpsc.channel.CloseChannel()
+}

peer/send/peer_send_channel_test.go

@@ -0,0 +1,108 @@
+package send
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"cwtch.im/cwtch/protocol/spam"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+)
+
+func TestPeerSendChannelAttributes(t *testing.T) {
+	cssc := new(CwtchPeerSendChannel)
+	if cssc.Type() != "im.cwtch.server.send" {
+		t.Errorf("cwtch channel type is incorrect %v", cssc.Type())
+	}
+
+	if !cssc.OnlyClientCanOpen() {
+		t.Errorf("only clients should be able to open im.cwtch.server.send channel")
+	}
+
+	if cssc.Bidirectional() {
+		t.Errorf("im.cwtch.server.listen should not be bidirectional")
+	}
+
+	if !cssc.Singleton() {
+		t.Errorf("im.cwtch.server.listen should be a Singleton")
+	}
+
+	if cssc.RequiresAuthentication() != "none" {
+		t.Errorf("cwtch channel required auth is incorrect %v", cssc.RequiresAuthentication())
+	}
+
+}
+
+func TestPeerSendChannelOpenInbound(t *testing.T) {
+	cssc := new(CwtchPeerSendChannel)
+	channel := new(channels.Channel)
+	_, err := cssc.OpenInbound(channel, nil)
+	if err == nil {
+		t.Errorf("client implementation of im.cwtch.server.Listen should never open an inbound channel")
+	}
+}
+
+func TestPeerSendChannelClosesOnPacket(t *testing.T) {
+	pfc := new(CwtchPeerSendChannel)
+	channel := new(channels.Channel)
+	closed := false
+	channel.CloseChannel = func() {
+		closed = true
+	}
+
+	pfc.OpenOutbound(channel)
+	pfc.Packet([]byte{})
+	if !closed {
+		t.Errorf("send channel should close if server attempts to send packets")
+	}
+}
+
+func TestPeerSendChannel(t *testing.T) {
+	pfc := new(CwtchPeerSendChannel)
+
+	channel := new(channels.Channel)
+	channel.ID = 3
+	success := false
+
+	var sg spam.Guard
+	sg.Difficulty = 2
+
+	closed := false
+	channel.CloseChannel = func() {
+		closed = true
+	}
+
+	channel.SendMessage = func(message []byte) {
+		packet := new(protocol.CwtchServerPacket)
+		proto.Unmarshal(message[:], packet)
+		if packet.GetGroupMessage() != nil {
+			success = sg.ValidateChallenge(packet.GetGroupMessage().GetCiphertext(), packet.GetGroupMessage().GetSpamguard())
+		}
+	}
+	result, err := pfc.OpenOutbound(channel)
+	if err != nil {
+		t.Errorf("expected result but also got non-nil error: result:%v, err: %v", result, err)
+	}
+
+	challenge := sg.GenerateChallenge(3)
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(challenge[:], control)
+
+	pfc.OpenOutboundResult(nil, control.GetChannelResult())
+	if channel.Pending {
+		t.Errorf("once opened channel should no longer be pending")
+	}
+
+	gm := &protocol.GroupMessage{Ciphertext: []byte("hello")}
+	pfc.SendGroupMessage(gm)
+	if !success {
+		t.Errorf("send channel should have successfully sent a valid group message")
+	}
+
+	if !closed {
+		t.Errorf("send channel should have successfully closed after a valid group message")
+	}
+
+	pfc.Closed(nil)
+
+}

protocol/ControlChannel.pb.go

@@ -0,0 +1,325 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: ControlChannel.proto
+
+/*
+Package protocol is a generated protocol buffer package.
+
+It is generated from these files:
+	ControlChannel.proto
+	cwtch-profile.proto
+	group_message.proto
+
+It has these top-level messages:
+	Packet
+	OpenChannel
+	ChannelResult
+	KeepAlive
+	EnableFeatures
+	FeaturesEnabled
+	CwtchPeerPacket
+	CwtchIdentity
+	GroupChatInvite
+	CwtchServerPacket
+	FetchMessage
+	GroupMessage
+	DecryptedGroupMessage
+*/
+package protocol
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type ChannelResult_CommonError int32
+
+const (
+	ChannelResult_GenericError      ChannelResult_CommonError = 0
+	ChannelResult_UnknownTypeError  ChannelResult_CommonError = 1
+	ChannelResult_UnauthorizedError ChannelResult_CommonError = 2
+	ChannelResult_BadUsageError     ChannelResult_CommonError = 3
+	ChannelResult_FailedError       ChannelResult_CommonError = 4
+)
+
+var ChannelResult_CommonError_name = map[int32]string{
+	0: "GenericError",
+	1: "UnknownTypeError",
+	2: "UnauthorizedError",
+	3: "BadUsageError",
+	4: "FailedError",
+}
+var ChannelResult_CommonError_value = map[string]int32{
+	"GenericError":      0,
+	"UnknownTypeError":  1,
+	"UnauthorizedError": 2,
+	"BadUsageError":     3,
+	"FailedError":       4,
+}
+
+func (x ChannelResult_CommonError) Enum() *ChannelResult_CommonError {
+	p := new(ChannelResult_CommonError)
+	*p = x
+	return p
+}
+func (x ChannelResult_CommonError) String() string {
+	return proto.EnumName(ChannelResult_CommonError_name, int32(x))
+}
+func (x *ChannelResult_CommonError) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(ChannelResult_CommonError_value, data, "ChannelResult_CommonError")
+	if err != nil {
+		return err
+	}
+	*x = ChannelResult_CommonError(value)
+	return nil
+}
+func (ChannelResult_CommonError) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{2, 0} }
+
+type Packet struct {
+	// Must contain exactly one field
+	OpenChannel      *OpenChannel     `protobuf:"bytes,1,opt,name=open_channel,json=openChannel" json:"open_channel,omitempty"`
+	ChannelResult    *ChannelResult   `protobuf:"bytes,2,opt,name=channel_result,json=channelResult" json:"channel_result,omitempty"`
+	KeepAlive        *KeepAlive       `protobuf:"bytes,3,opt,name=keep_alive,json=keepAlive" json:"keep_alive,omitempty"`
+	EnableFeatures   *EnableFeatures  `protobuf:"bytes,4,opt,name=enable_features,json=enableFeatures" json:"enable_features,omitempty"`
+	FeaturesEnabled  *FeaturesEnabled `protobuf:"bytes,5,opt,name=features_enabled,json=featuresEnabled" json:"features_enabled,omitempty"`
+	XXX_unrecognized []byte           `json:"-"`
+}
+
+func (m *Packet) Reset()                    { *m = Packet{} }
+func (m *Packet) String() string            { return proto.CompactTextString(m) }
+func (*Packet) ProtoMessage()               {}
+func (*Packet) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *Packet) GetOpenChannel() *OpenChannel {
+	if m != nil {
+		return m.OpenChannel
+	}
+	return nil
+}
+
+func (m *Packet) GetChannelResult() *ChannelResult {
+	if m != nil {
+		return m.ChannelResult
+	}
+	return nil
+}
+
+func (m *Packet) GetKeepAlive() *KeepAlive {
+	if m != nil {
+		return m.KeepAlive
+	}
+	return nil
+}
+
+func (m *Packet) GetEnableFeatures() *EnableFeatures {
+	if m != nil {
+		return m.EnableFeatures
+	}
+	return nil
+}
+
+func (m *Packet) GetFeaturesEnabled() *FeaturesEnabled {
+	if m != nil {
+		return m.FeaturesEnabled
+	}
+	return nil
+}
+
+type OpenChannel struct {
+	ChannelIdentifier            *int32  `protobuf:"varint,1,req,name=channel_identifier,json=channelIdentifier" json:"channel_identifier,omitempty"`
+	ChannelType                  *string `protobuf:"bytes,2,req,name=channel_type,json=channelType" json:"channel_type,omitempty"`
+	proto.XXX_InternalExtensions `json:"-"`
+	XXX_unrecognized             []byte `json:"-"`
+}
+
+func (m *OpenChannel) Reset()                    { *m = OpenChannel{} }
+func (m *OpenChannel) String() string            { return proto.CompactTextString(m) }
+func (*OpenChannel) ProtoMessage()               {}
+func (*OpenChannel) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+var extRange_OpenChannel = []proto.ExtensionRange{
+	{Start: 100, End: 536870911},
+}
+
+func (*OpenChannel) ExtensionRangeArray() []proto.ExtensionRange {
+	return extRange_OpenChannel
+}
+
+func (m *OpenChannel) GetChannelIdentifier() int32 {
+	if m != nil && m.ChannelIdentifier != nil {
+		return *m.ChannelIdentifier
+	}
+	return 0
+}
+
+func (m *OpenChannel) GetChannelType() string {
+	if m != nil && m.ChannelType != nil {
+		return *m.ChannelType
+	}
+	return ""
+}
+
+type ChannelResult struct {
+	ChannelIdentifier            *int32                     `protobuf:"varint,1,req,name=channel_identifier,json=channelIdentifier" json:"channel_identifier,omitempty"`
+	Opened                       *bool                      `protobuf:"varint,2,req,name=opened" json:"opened,omitempty"`
+	CommonError                  *ChannelResult_CommonError `protobuf:"varint,3,opt,name=common_error,json=commonError,enum=protocol.ChannelResult_CommonError" json:"common_error,omitempty"`
+	proto.XXX_InternalExtensions `json:"-"`
+	XXX_unrecognized             []byte `json:"-"`
+}
+
+func (m *ChannelResult) Reset()                    { *m = ChannelResult{} }
+func (m *ChannelResult) String() string            { return proto.CompactTextString(m) }
+func (*ChannelResult) ProtoMessage()               {}
+func (*ChannelResult) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+var extRange_ChannelResult = []proto.ExtensionRange{
+	{Start: 100, End: 536870911},
+}
+
+func (*ChannelResult) ExtensionRangeArray() []proto.ExtensionRange {
+	return extRange_ChannelResult
+}
+
+func (m *ChannelResult) GetChannelIdentifier() int32 {
+	if m != nil && m.ChannelIdentifier != nil {
+		return *m.ChannelIdentifier
+	}
+	return 0
+}
+
+func (m *ChannelResult) GetOpened() bool {
+	if m != nil && m.Opened != nil {
+		return *m.Opened
+	}
+	return false
+}
+
+func (m *ChannelResult) GetCommonError() ChannelResult_CommonError {
+	if m != nil && m.CommonError != nil {
+		return *m.CommonError
+	}
+	return ChannelResult_GenericError
+}
+
+type KeepAlive struct {
+	ResponseRequested *bool  `protobuf:"varint,1,req,name=response_requested,json=responseRequested" json:"response_requested,omitempty"`
+	XXX_unrecognized  []byte `json:"-"`
+}
+
+func (m *KeepAlive) Reset()                    { *m = KeepAlive{} }
+func (m *KeepAlive) String() string            { return proto.CompactTextString(m) }
+func (*KeepAlive) ProtoMessage()               {}
+func (*KeepAlive) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+
+func (m *KeepAlive) GetResponseRequested() bool {
+	if m != nil && m.ResponseRequested != nil {
+		return *m.ResponseRequested
+	}
+	return false
+}
+
+type EnableFeatures struct {
+	Feature                      []string `protobuf:"bytes,1,rep,name=feature" json:"feature,omitempty"`
+	proto.XXX_InternalExtensions `json:"-"`
+	XXX_unrecognized             []byte `json:"-"`
+}
+
+func (m *EnableFeatures) Reset()                    { *m = EnableFeatures{} }
+func (m *EnableFeatures) String() string            { return proto.CompactTextString(m) }
+func (*EnableFeatures) ProtoMessage()               {}
+func (*EnableFeatures) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+
+var extRange_EnableFeatures = []proto.ExtensionRange{
+	{Start: 100, End: 536870911},
+}
+
+func (*EnableFeatures) ExtensionRangeArray() []proto.ExtensionRange {
+	return extRange_EnableFeatures
+}
+
+func (m *EnableFeatures) GetFeature() []string {
+	if m != nil {
+		return m.Feature
+	}
+	return nil
+}
+
+type FeaturesEnabled struct {
+	Feature                      []string `protobuf:"bytes,1,rep,name=feature" json:"feature,omitempty"`
+	proto.XXX_InternalExtensions `json:"-"`
+	XXX_unrecognized             []byte `json:"-"`
+}
+
+func (m *FeaturesEnabled) Reset()                    { *m = FeaturesEnabled{} }
+func (m *FeaturesEnabled) String() string            { return proto.CompactTextString(m) }
+func (*FeaturesEnabled) ProtoMessage()               {}
+func (*FeaturesEnabled) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
+
+var extRange_FeaturesEnabled = []proto.ExtensionRange{
+	{Start: 100, End: 536870911},
+}
+
+func (*FeaturesEnabled) ExtensionRangeArray() []proto.ExtensionRange {
+	return extRange_FeaturesEnabled
+}
+
+func (m *FeaturesEnabled) GetFeature() []string {
+	if m != nil {
+		return m.Feature
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Packet)(nil), "protocol.Packet")
+	proto.RegisterType((*OpenChannel)(nil), "protocol.OpenChannel")
+	proto.RegisterType((*ChannelResult)(nil), "protocol.ChannelResult")
+	proto.RegisterType((*KeepAlive)(nil), "protocol.KeepAlive")
+	proto.RegisterType((*EnableFeatures)(nil), "protocol.EnableFeatures")
+	proto.RegisterType((*FeaturesEnabled)(nil), "protocol.FeaturesEnabled")
+	proto.RegisterEnum("protocol.ChannelResult_CommonError", ChannelResult_CommonError_name, ChannelResult_CommonError_value)
+}
+
+func init() { proto.RegisterFile("ControlChannel.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 461 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x94, 0x52, 0x4d, 0x8f, 0xd3, 0x30,
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+	0x47, 0x30, 0x70, 0x72, 0x73, 0xab, 0x90, 0xfa, 0x53, 0x7f, 0xd6, 0x67, 0x61, 0x53, 0xfb, 0x74,
+	0xab, 0xf0, 0x49, 0x10, 0x64, 0xd1, 0x7e, 0xbf, 0xdf, 0xfb, 0xf1, 0x4f, 0x1f, 0x86, 0x47, 0x41,
+	0xfe, 0xef, 0xb4, 0xfb, 0x70, 0x56, 0xed, 0x0d, 0x33, 0x3b, 0x27, 0x60, 0x0d, 0x22, 0x2b, 0x18,
+	0xa4, 0xf2, 0xe6, 0x46, 0x8a, 0x04, 0xb5, 0x96, 0xda, 0xae, 0x60, 0xb4, 0x78, 0xfc, 0x97, 0xf5,
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+	0xe0, 0x2d, 0x0a, 0xd4, 0x79, 0x6a, 0x71, 0x74, 0x87, 0x9c, 0x43, 0xb4, 0x16, 0x5b, 0x21, 0xbf,
+	0x8b, 0xea, 0x69, 0x75, 0xd5, 0x23, 0x17, 0x30, 0x59, 0x0b, 0xbe, 0x33, 0xd7, 0x52, 0xe7, 0x3f,
+	0x30, 0xab, 0xcb, 0x3e, 0x99, 0xc0, 0xf0, 0x35, 0xcf, 0xd6, 0x25, 0xff, 0xd2, 0x28, 0x7b, 0x64,
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+	0x68, 0x2c, 0x95, 0x14, 0x25, 0x26, 0x1a, 0xbf, 0xee, 0xb0, 0x34, 0x98, 0xd9, 0x5c, 0x02, 0x36,
+	0x71, 0x0c, 0x73, 0x44, 0xfc, 0x0c, 0x46, 0xc7, 0xb7, 0x42, 0x28, 0xdc, 0x6d, 0x16, 0x4d, 0xbd,
+	0x69, 0x6f, 0xd6, 0x67, 0x0e, 0x76, 0x26, 0x3e, 0x87, 0xf1, 0x1f, 0xd7, 0xf1, 0x2f, 0xb6, 0xdf,
+	0x01, 0x00, 0x00, 0xff, 0xff, 0x9d, 0x32, 0x16, 0x1e, 0x93, 0x03, 0x00, 0x00,
+}

protocol/ControlChannel.proto

@@ -0,0 +1,53 @@
+syntax = "proto2";
+package protocol;
+
+message Packet {
+    // Must contain exactly one field
+    optional OpenChannel open_channel = 1;
+    optional ChannelResult channel_result = 2;
+    optional KeepAlive keep_alive = 3;
+    optional EnableFeatures enable_features = 4;
+    optional FeaturesEnabled features_enabled = 5;
+}
+
+message OpenChannel {
+    required int32 channel_identifier = 1;      // Arbitrary unique identifier for this channel instance
+    required string channel_type = 2;           // String identifying channel type; e.g. im.ricochet.chat
+
+    // It is valid to extend the OpenChannel message to add fields specific
+    // to the requested channel_type.
+    extensions 100 to max;
+}
+
+message ChannelResult {
+    required int32 channel_identifier = 1;      // Matching the value from OpenChannel
+    required bool opened = 2;                   // If the channel is now open
+
+    enum CommonError {
+        GenericError = 0;
+        UnknownTypeError = 1;
+        UnauthorizedError = 2;
+        BadUsageError = 3;
+        FailedError = 4;
+    }
+
+    optional CommonError common_error = 3;
+
+    // As with OpenChannel, it is valid to extend this message with fields specific
+    // to the channel type.
+    extensions 100 to max;
+}
+
+message KeepAlive {
+    required bool response_requested = 1;
+}
+
+message EnableFeatures {
+    repeated string feature = 1;
+    extensions 100 to max;
+}
+
+message FeaturesEnabled {
+    repeated string feature = 1;
+    extensions 100 to max;
+}

protocol/connections/engine.go

@@ -1,515 +0,0 @@
-package connections
-
-import (
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/model"
-	"cwtch.im/cwtch/protocol/groups"
-	"encoding/base64"
-	"encoding/json"
-	"errors"
-	"git.openprivacy.ca/cwtch.im/tapir"
-	"git.openprivacy.ca/cwtch.im/tapir/networks/tor"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"git.openprivacy.ca/openprivacy/connectivity"
-	torProvider "git.openprivacy.ca/openprivacy/connectivity/tor"
-	"git.openprivacy.ca/openprivacy/log"
-	"github.com/gtank/ristretto255"
-	"golang.org/x/crypto/ed25519"
-	"strconv"
-	"sync"
-	"time"
-)
-
-type engine struct {
-	queue event.Queue
-
-	// Engine Attributes
-	identity primitives.Identity
-	acn      connectivity.ACN
-
-	// Authorization list of contacts to authorization status
-	authorizations sync.Map // string(onion) => model.Authorization
-
-	// Block Unknown Contacts
-	blockUnknownContacts bool
-
-	// Pointer to the Global Event Manager
-	eventManager event.Manager
-
-	// Nextgen Tapir Service
-	service tapir.Service
-
-	// Nextgen Tapir Service
-	ephemeralServices sync.Map // string(onion) => tapir.Service
-
-	// Required for listen(), inaccessible from identity
-	privateKey ed25519.PrivateKey
-
-	shuttingDown bool
-}
-
-// Engine (ProtocolEngine) encapsulates the logic necessary to make and receive Cwtch connections.
-// Note: ProtocolEngine doesn't have access to any information necessary to encrypt or decrypt GroupMessages
-// Protocol Engine *can* associate Group Identifiers with Group Servers, although we don't currently make use of this fact
-// other than to route errors back to the UI.
-type Engine interface {
-	ACN() connectivity.ACN
-	EventManager() event.Manager
-	Shutdown()
-}
-
-// NewProtocolEngine initializes a new engine that runs Cwtch using the given parameters
-func NewProtocolEngine(identity primitives.Identity, privateKey ed25519.PrivateKey, acn connectivity.ACN, eventManager event.Manager, peerAuthorizations map[string]model.Authorization) Engine {
-	engine := new(engine)
-	engine.identity = identity
-	engine.privateKey = privateKey
-	engine.queue = event.NewQueue()
-	go engine.eventHandler()
-
-	engine.acn = acn
-
-	// Init the Server running the Simple App.
-	engine.service = new(tor.BaseOnionService)
-	engine.service.Init(acn, privateKey, &identity)
-
-	engine.eventManager = eventManager
-
-	engine.eventManager.Subscribe(event.ProtocolEngineStartListen, engine.queue)
-	engine.eventManager.Subscribe(event.PeerRequest, engine.queue)
-	engine.eventManager.Subscribe(event.RetryPeerRequest, engine.queue)
-	engine.eventManager.Subscribe(event.InvitePeerToGroup, engine.queue)
-	engine.eventManager.Subscribe(event.JoinServer, engine.queue)
-	engine.eventManager.Subscribe(event.LeaveServer, engine.queue)
-	engine.eventManager.Subscribe(event.SendMessageToGroup, engine.queue)
-	engine.eventManager.Subscribe(event.SendMessageToPeer, engine.queue)
-	engine.eventManager.Subscribe(event.SendGetValMessageToPeer, engine.queue)
-	engine.eventManager.Subscribe(event.SendRetValMessageToPeer, engine.queue)
-	engine.eventManager.Subscribe(event.DeleteContact, engine.queue)
-	engine.eventManager.Subscribe(event.DeleteGroup, engine.queue)
-
-	engine.eventManager.Subscribe(event.SetPeerAuthorization, engine.queue)
-	engine.eventManager.Subscribe(event.BlockUnknownPeers, engine.queue)
-	engine.eventManager.Subscribe(event.AllowUnknownPeers, engine.queue)
-
-	for peer, authorization := range peerAuthorizations {
-		engine.authorizations.Store(peer, authorization)
-	}
-	return engine
-}
-
-func (e *engine) ACN() connectivity.ACN {
-	return e.acn
-}
-
-func (e *engine) EventManager() event.Manager {
-	return e.eventManager
-}
-
-// eventHandler process events from other subsystems
-func (e *engine) eventHandler() {
-	for {
-		ev := e.queue.Next()
-		switch ev.EventType {
-		case event.StatusRequest:
-			e.eventManager.Publish(event.Event{EventType: event.ProtocolEngineStatus, EventID: ev.EventID})
-		case event.PeerRequest:
-			if torProvider.IsValidHostname(ev.Data[event.RemotePeer]) {
-				go e.peerWithOnion(ev.Data[event.RemotePeer])
-			}
-		case event.RetryPeerRequest:
-			// This event allows engine to treat (automated) retry peering requests differently to user-specified
-			// peer events
-			if torProvider.IsValidHostname(ev.Data[event.RemotePeer]) {
-				log.Debugf("Retrying Peer Request: %v", ev.Data[event.RemotePeer])
-				go e.peerWithOnion(ev.Data[event.RemotePeer])
-			}
-		case event.InvitePeerToGroup:
-			e.sendMessageToPeer(ev.EventID, ev.Data[event.RemotePeer], event.ContextInvite, []byte(ev.Data[event.GroupInvite]))
-		case event.JoinServer:
-			signature, err := base64.StdEncoding.DecodeString(ev.Data[event.Signature])
-			if err != nil {
-				// will result in a full sync
-				signature = []byte{}
-			}
-			go e.peerWithTokenServer(ev.Data[event.GroupServer], ev.Data[event.ServerTokenOnion], ev.Data[event.ServerTokenY], signature)
-		case event.LeaveServer:
-			e.leaveServer(ev.Data[event.GroupServer])
-		case event.DeleteContact:
-			onion := ev.Data[event.RemotePeer]
-			// We remove this peer from out blocklist which will prevent them from contacting us if we have "block unknown peers" turned on.
-			e.authorizations.Delete(ev.Data[event.RemotePeer])
-			e.deleteConnection(onion)
-		case event.DeleteGroup:
-			// TODO: There isn't a way here to determine if other Groups are using a server connection...
-		case event.SendMessageToGroup:
-			ciphertext, _ := base64.StdEncoding.DecodeString(ev.Data[event.Ciphertext])
-			signature, _ := base64.StdEncoding.DecodeString(ev.Data[event.Signature])
-			go e.sendMessageToGroup(ev.Data[event.GroupID], ev.Data[event.GroupServer], ciphertext, signature)
-		case event.SendMessageToPeer:
-			// TODO: remove this passthrough once the UI is integrated.
-			context, ok := ev.Data[event.EventContext]
-			if !ok {
-				context = event.ContextRaw
-			}
-			err := e.sendMessageToPeer(ev.EventID, ev.Data[event.RemotePeer], context, []byte(ev.Data[event.Data]))
-			if err != nil {
-				e.eventManager.Publish(event.NewEvent(event.SendMessageToPeerError, map[event.Field]string{event.RemotePeer: ev.Data[event.RemotePeer], event.EventID: ev.EventID, event.Error: "peer is offline or the connection has yet to finalize"}))
-			}
-		case event.SendGetValMessageToPeer:
-			e.sendGetValToPeer(ev.EventID, ev.Data[event.RemotePeer], ev.Data[event.Scope], ev.Data[event.Path])
-		case event.SendRetValMessageToPeer:
-			e.sendRetValToPeer(ev.EventID, ev.Data[event.RemotePeer], ev.Data[event.Data], ev.Data[event.Exists])
-		case event.SetPeerAuthorization:
-			auth := model.Authorization(ev.Data[event.Authorization])
-			e.authorizations.Store(ev.Data[event.RemotePeer], auth)
-			if auth == model.AuthBlocked {
-				connection, err := e.service.GetConnection(ev.Data[event.RemotePeer])
-				if connection != nil && err == nil {
-					connection.Close()
-				}
-				// Explicitly send a disconnected event (if we don't do this here then the UI can wait for a while before
-				// an ongoing Open() connection fails and so the user will see a blocked peer as still connecting (because
-				// there isn't an active connection and we are stuck waiting for tor to time out)
-				e.peerDisconnected(ev.Data[event.RemotePeer])
-			}
-		case event.AllowUnknownPeers:
-			log.Debugf("%v now allows unknown connections", e.identity.Hostname())
-			e.blockUnknownContacts = false
-		case event.BlockUnknownPeers:
-			log.Debugf("%v now forbids unknown connections", e.identity.Hostname())
-			e.blockUnknownContacts = true
-		case event.ProtocolEngineStartListen:
-			go e.listenFn()
-		default:
-			return
-		}
-	}
-}
-
-func (e *engine) isBlocked(onion string) bool {
-	authorization, known := e.authorizations.Load(onion)
-	if !known {
-		// if we block unknown peers we will block this contact
-		return e.blockUnknownContacts
-	}
-	return authorization.(model.Authorization) == model.AuthBlocked
-}
-
-func (e *engine) isAllowed(onion string) bool {
-	authorization, known := e.authorizations.Load(onion)
-	if !known {
-		log.Errorf("attempted to lookup authorization of onion not in map...that should never happen")
-		return false
-	}
-	if e.blockUnknownContacts {
-		return authorization.(model.Authorization) == model.AuthApproved
-	}
-	return authorization.(model.Authorization) != model.AuthBlocked
-}
-
-func (e *engine) createPeerTemplate() *PeerApp {
-	peerAppTemplate := new(PeerApp)
-	peerAppTemplate.IsBlocked = e.isBlocked
-	peerAppTemplate.IsAllowed = e.isAllowed
-	peerAppTemplate.MessageHandler = e.handlePeerMessage
-	peerAppTemplate.OnAcknowledgement = e.ignoreOnShutdown2(e.peerAck)
-	peerAppTemplate.OnAuth = e.ignoreOnShutdown(e.peerAuthed)
-	peerAppTemplate.OnConnecting = e.ignoreOnShutdown(e.peerConnecting)
-	peerAppTemplate.OnClose = e.ignoreOnShutdown(e.peerDisconnected)
-	peerAppTemplate.RetValHandler = e.handlePeerRetVal
-	return peerAppTemplate
-}
-
-// Listen sets up an onion listener to process incoming cwtch messages
-func (e *engine) listenFn() {
-	err := e.service.Listen(e.createPeerTemplate())
-	if !e.shuttingDown {
-		e.eventManager.Publish(event.NewEvent(event.ProtocolEngineStopped, map[event.Field]string{event.Identity: e.identity.Hostname(), event.Error: err.Error()}))
-	}
-}
-
-// Shutdown tears down the eventHandler goroutine
-func (e *engine) Shutdown() {
-	e.shuttingDown = true
-	e.service.Shutdown()
-	e.queue.Shutdown()
-}
-
-// peerWithOnion is the entry point for cwtchPeer relationships
-// needs to be run in a goroutine as will block on Open.
-func (e *engine) peerWithOnion(onion string) {
-	log.Debugf("Called PeerWithOnion for %v", onion)
-	if !e.isBlocked(onion) {
-		e.ignoreOnShutdown(e.peerConnecting)(onion)
-		connected, err := e.service.Connect(onion, e.createPeerTemplate())
-
-		// If we are already connected...check if we are authed and issue an auth event
-		// (This allows the ui to be stateless)
-		if connected && err != nil {
-			conn, err := e.service.GetConnection(onion)
-			if err == nil {
-				if conn.HasCapability(cwtchCapability) {
-					e.ignoreOnShutdown(e.peerAuthed)(onion)
-					return
-				}
-			}
-		}
-
-		// Only issue a disconnected error if we are disconnected (Connect will fail if a connection already exists)
-		if !connected && err != nil {
-			e.ignoreOnShutdown(e.peerDisconnected)(onion)
-		}
-	}
-}
-
-// peerWithTokenServer is the entry point for cwtchPeer - server relationships
-// needs to be run in a goroutine as will block on Open.
-func (e *engine) peerWithTokenServer(onion string, tokenServerOnion string, tokenServerY string, lastKnownSignature []byte) {
-
-	service, exists := e.ephemeralServices.Load(onion)
-	if exists {
-		connection := service.(*tor.BaseOnionService)
-		if conn, err := connection.GetConnection(onion); err == nil {
-			// We are already peered and synced so return...
-			// This will only not-trigger it lastKnownSignature has been wiped, which only happens when ResyncServer is called
-			// in CwtchPeer.
-			if !conn.IsClosed() && len(lastKnownSignature) != 0 {
-				return
-			}
-			// Otherwise...we are going to rebuild the connection(which will result in a bandwidth heavy resync)...
-			e.leaveServer(onion)
-		}
-		// Otherwise...let's reconnect
-	}
-
-	log.Debugf("Peering with Token Server %v %v", onion, tokenServerOnion)
-	e.ignoreOnShutdown(e.serverConnecting)(onion)
-	// Create a new ephemeral service for this connection
-	ephemeralService := new(tor.BaseOnionService)
-	eid, epk := primitives.InitializeEphemeralIdentity()
-	ephemeralService.Init(e.acn, epk, &eid)
-
-	Y := ristretto255.NewElement()
-	Y.UnmarshalText([]byte(tokenServerY))
-	connected, err := ephemeralService.Connect(onion, NewTokenBoardClient(e.acn, Y, tokenServerOnion, lastKnownSignature, e.receiveGroupMessage, e.serverSynced, e.serverDisconnected))
-	e.ephemeralServices.Store(onion, ephemeralService)
-	// If we are already connected...check if we are authed and issue an auth event
-	// (This allows the ui to be stateless)
-	if connected && err != nil {
-		conn, err := ephemeralService.GetConnection(onion)
-		if err == nil {
-			if conn.HasCapability(groups.CwtchServerSyncedCapability) {
-				e.ignoreOnShutdown(e.serverConnected)(onion)
-				return
-			}
-		}
-	}
-
-	// Only issue a disconnected error if we are disconnected (Connect will fail if a connection already exists)
-	if !connected && err != nil {
-		e.ignoreOnShutdown(e.serverDisconnected)(onion)
-	}
-}
-
-func (e *engine) ignoreOnShutdown(f func(string)) func(string) {
-	return func(x string) {
-		if !e.shuttingDown {
-			f(x)
-		}
-	}
-}
-
-func (e *engine) ignoreOnShutdown2(f func(string, string)) func(string, string) {
-	return func(x, y string) {
-		if !e.shuttingDown {
-			f(x, y)
-		}
-	}
-}
-
-func (e *engine) peerAuthed(onion string) {
-	_, known := e.authorizations.Load(onion)
-	if !known {
-		e.authorizations.Store(onion, model.AuthUnknown)
-	}
-	e.eventManager.Publish(event.NewEvent(event.PeerStateChange, map[event.Field]string{
-		event.RemotePeer:      string(onion),
-		event.ConnectionState: ConnectionStateName[AUTHENTICATED],
-	}))
-}
-
-func (e *engine) peerConnecting(onion string) {
-	e.eventManager.Publish(event.NewEvent(event.PeerStateChange, map[event.Field]string{
-		event.RemotePeer:      string(onion),
-		event.ConnectionState: ConnectionStateName[CONNECTING],
-	}))
-}
-
-func (e *engine) serverConnecting(onion string) {
-	e.eventManager.Publish(event.NewEvent(event.ServerStateChange, map[event.Field]string{
-		event.GroupServer:     string(onion),
-		event.ConnectionState: ConnectionStateName[CONNECTING],
-	}))
-}
-
-func (e *engine) serverConnected(onion string) {
-	e.eventManager.Publish(event.NewEvent(event.ServerStateChange, map[event.Field]string{
-		event.GroupServer:     onion,
-		event.ConnectionState: ConnectionStateName[CONNECTED],
-	}))
-}
-
-func (e *engine) serverSynced(onion string) {
-	e.eventManager.Publish(event.NewEvent(event.ServerStateChange, map[event.Field]string{
-		event.GroupServer:     onion,
-		event.ConnectionState: ConnectionStateName[SYNCED],
-	}))
-}
-
-func (e *engine) serverDisconnected(onion string) {
-	e.eventManager.Publish(event.NewEvent(event.ServerStateChange, map[event.Field]string{
-		event.GroupServer:     onion,
-		event.ConnectionState: ConnectionStateName[DISCONNECTED],
-	}))
-}
-
-func (e *engine) peerAck(onion string, eventID string) {
-	e.eventManager.Publish(event.NewEvent(event.PeerAcknowledgement, map[event.Field]string{
-		event.EventID:    eventID,
-		event.RemotePeer: onion,
-	}))
-}
-
-func (e *engine) peerDisconnected(onion string) {
-	e.eventManager.Publish(event.NewEvent(event.PeerStateChange, map[event.Field]string{
-		event.RemotePeer:      string(onion),
-		event.ConnectionState: ConnectionStateName[DISCONNECTED],
-	}))
-}
-
-// sendMessageToPeer sends a message to a peer under a given context
-func (e *engine) sendMessageToPeer(eventID string, onion string, context string, message []byte) error {
-	conn, err := e.service.WaitForCapabilityOrClose(onion, cwtchCapability)
-	if err == nil {
-		peerApp, ok := (conn.App()).(*PeerApp)
-		if ok {
-			peerApp.SendMessage(PeerMessage{eventID, context, message})
-			return nil
-		}
-		return errors.New("failed type assertion conn.App != PeerApp")
-	}
-	return err
-}
-
-func (e *engine) sendGetValToPeer(eventID, onion, scope, path string) error {
-	log.Debugf("sendGetValMessage to peer %v %v%v\n", onion, scope, path)
-	getVal := peerGetVal{Scope: scope, Path: path}
-	message, err := json.Marshal(getVal)
-	if err != nil {
-		return err
-	}
-	return e.sendMessageToPeer(eventID, onion, event.ContextGetVal, message)
-}
-
-func (e *engine) sendRetValToPeer(eventID, onion, val, existsStr string) error {
-	log.Debugf("sendRetValMessage to peer %v (%v) %v %v\n", onion, eventID, val, existsStr)
-	exists, _ := strconv.ParseBool(existsStr)
-	retVal := peerRetVal{Val: val, Exists: exists}
-	message, err := json.Marshal(retVal)
-	if err != nil {
-		return err
-	}
-	return e.sendMessageToPeer(eventID, onion, event.ContextRetVal, message)
-}
-
-func (e *engine) deleteConnection(id string) {
-	conn, err := e.service.GetConnection(id)
-	if err == nil {
-		conn.Close()
-	}
-}
-
-// receiveGroupMessage is a callback function that processes GroupMessages from a given server
-func (e *engine) receiveGroupMessage(server string, gm *groups.EncryptedGroupMessage) {
-	// Publish Event so that a Profile Engine can deal with it.
-	// Note: This technically means that *multiple* Profile Engines could listen to the same ProtocolEngine!
-	e.eventManager.Publish(event.NewEvent(event.EncryptedGroupMessage, map[event.Field]string{event.GroupServer: server, event.Ciphertext: base64.StdEncoding.EncodeToString(gm.Ciphertext), event.Signature: base64.StdEncoding.EncodeToString(gm.Signature)}))
-}
-
-// sendMessageToGroup attempts to sent the given message to the given group id.
-func (e *engine) sendMessageToGroup(groupID string, server string, ct []byte, sig []byte) {
-
-	es, ok := e.ephemeralServices.Load(server)
-	if es == nil || !ok {
-		e.eventManager.Publish(event.NewEvent(event.SendMessageToGroupError, map[event.Field]string{event.GroupID: groupID, event.GroupServer: server, event.Error: "server-not-found", event.Signature: base64.StdEncoding.EncodeToString(sig)}))
-		return
-	}
-	ephemeralService := es.(tapir.Service)
-
-	conn, err := ephemeralService.WaitForCapabilityOrClose(server, groups.CwtchServerSyncedCapability)
-	if err == nil {
-		tokenApp, ok := (conn.App()).(*TokenBoardClient)
-		if ok {
-			if spent, numtokens := tokenApp.Post(ct, sig); !spent {
-				// TODO: while this works for the spam guard, it won't work for other forms of payment...
-				// Make an -inline- payment, this will hold the goroutine
-				if err := tokenApp.MakePayment(); err == nil {
-					// This really shouldn't fail since we now know we have the required tokens...
-					if spent, _ := tokenApp.Post(ct, sig); !spent {
-						e.eventManager.Publish(event.NewEvent(event.SendMessageToGroupError, map[event.Field]string{event.GroupID: groupID, event.GroupServer: server, event.Error: err.Error(), event.Signature: base64.StdEncoding.EncodeToString(sig)}))
-					}
-				} else {
-					// Broadast the token error
-					e.eventManager.Publish(event.NewEvent(event.SendMessageToGroupError, map[event.Field]string{event.GroupID: groupID, event.GroupServer: server, event.Error: err.Error(), event.Signature: base64.StdEncoding.EncodeToString(sig)}))
-				}
-			} else if numtokens < 5 {
-				go tokenApp.MakePayment()
-			}
-			// regardless we return....
-			return
-		}
-	}
-	e.eventManager.Publish(event.NewEvent(event.SendMessageToGroupError, map[event.Field]string{event.GroupID: groupID, event.GroupServer: server, event.Error: "server-connection-not-valid", event.Signature: base64.StdEncoding.EncodeToString(sig)}))
-}
-
-func (e *engine) handlePeerMessage(hostname string, eventID string, context string, message []byte) {
-	log.Debugf("New message from peer: %v %v", hostname, context)
-	if context == event.ContextGetVal {
-		var getVal peerGetVal
-		err := json.Unmarshal(message, &getVal)
-		if err == nil {
-			ev := event.NewEventList(event.NewGetValMessageFromPeer, event.RemotePeer, hostname, event.Scope, getVal.Scope, event.Path, getVal.Path)
-			ev.EventID = eventID
-			e.eventManager.Publish(ev)
-		}
-	} else {
-		e.eventManager.Publish(event.NewEvent(event.NewMessageFromPeer, map[event.Field]string{event.TimestampReceived: time.Now().Format(time.RFC3339Nano), event.RemotePeer: hostname, event.Data: string(message)}))
-	}
-}
-
-func (e *engine) handlePeerRetVal(hostname string, getValData, retValData []byte) {
-	var getVal peerGetVal
-	var retVal peerRetVal
-
-	err := json.Unmarshal(getValData, &getVal)
-	if err != nil {
-		log.Errorf("Unmarshalling our own getVal request: %v\n", err)
-		return
-	}
-	err = json.Unmarshal(retValData, &retVal)
-	if err != nil {
-		log.Errorf("Unmarshalling peer response to getVal request")
-		return
-	}
-
-	e.eventManager.Publish(event.NewEventList(event.NewRetValMessageFromPeer, event.RemotePeer, hostname, event.Scope, getVal.Scope, event.Path, getVal.Path, event.Exists, strconv.FormatBool(retVal.Exists), event.Data, retVal.Val))
-}
-
-func (e *engine) leaveServer(server string) {
-	es, ok := e.ephemeralServices.Load(server)
-	if ok {
-		ephemeralService := es.(tapir.Service)
-		ephemeralService.Shutdown()
-		e.ephemeralServices.Delete(server)
-	}
-}

protocol/connections/peerapp.go

@@ -1,126 +0,0 @@
-package connections
-
-import (
-	"cwtch.im/cwtch/event"
-	"encoding/json"
-	"git.openprivacy.ca/cwtch.im/tapir"
-	"git.openprivacy.ca/cwtch.im/tapir/applications"
-	"git.openprivacy.ca/openprivacy/log"
-	"sync"
-)
-
-const cwtchCapability = tapir.Capability("cwtchCapability")
-
-// PeerApp encapsulates the behaviour of a Cwtch Peer
-type PeerApp struct {
-	applications.AuthApp
-	connection        tapir.Connection
-	MessageHandler    func(string, string, string, []byte)
-	RetValHandler     func(string, []byte, []byte)
-	IsBlocked         func(string) bool
-	IsAllowed         func(string) bool
-	OnAcknowledgement func(string, string)
-	OnAuth            func(string)
-	OnClose           func(string)
-	OnConnecting      func(string)
-
-	getValRequests sync.Map // [string]string eventID:Data
-}
-
-// PeerMessage is an encapsulation that can be used by higher level applications
-type PeerMessage struct {
-	ID      string // A unique Message ID (primarily used for acknowledgments)
-	Context string // A unique context identifier i.e. im.cwtch.chat
-	Data    []byte // The serialized data packet.
-}
-
-type peerGetVal struct {
-	Scope, Path string
-}
-
-type peerRetVal struct {
-	Val    string
-	Exists bool
-}
-
-// NewInstance should always return a new instantiation of the application.
-func (pa *PeerApp) NewInstance() tapir.Application {
-	newApp := new(PeerApp)
-	newApp.MessageHandler = pa.MessageHandler
-	newApp.IsBlocked = pa.IsBlocked
-	newApp.IsAllowed = pa.IsAllowed
-	newApp.OnAcknowledgement = pa.OnAcknowledgement
-	newApp.OnAuth = pa.OnAuth
-	newApp.OnClose = pa.OnClose
-	newApp.OnConnecting = pa.OnConnecting
-	newApp.RetValHandler = pa.RetValHandler
-	return newApp
-}
-
-// Init is run when the connection is first started.
-func (pa *PeerApp) Init(connection tapir.Connection) {
-	// First run the Authentication App
-	pa.AuthApp.Init(connection)
-
-	if connection.HasCapability(applications.AuthCapability) {
-
-		pa.connection = connection
-		connection.SetCapability(cwtchCapability)
-
-		if pa.IsBlocked(connection.Hostname()) {
-			pa.connection.Close()
-			pa.OnClose(connection.Hostname())
-		} else {
-			pa.OnAuth(connection.Hostname())
-			go pa.listen()
-		}
-	} else {
-		// The auth protocol wasn't completed, we can safely shutdown the connection
-		connection.Close()
-	}
-}
-
-func (pa *PeerApp) listen() {
-	for {
-		message := pa.connection.Expect()
-		if len(message) == 0 {
-			log.Debugf("0 byte read, socket has likely failed. Closing the listen goroutine")
-			pa.OnClose(pa.connection.Hostname())
-			return
-		}
-		var peerMessage PeerMessage
-		err := json.Unmarshal(message, &peerMessage)
-		if err == nil {
-			switch peerMessage.Context {
-			case event.ContextAck:
-				pa.OnAcknowledgement(pa.connection.Hostname(), peerMessage.ID)
-			case event.ContextRetVal:
-				req, ok := pa.getValRequests.Load(peerMessage.ID)
-				if ok {
-					reqStr := []byte(req.(string))
-					pa.RetValHandler(pa.connection.Hostname(), reqStr, peerMessage.Data)
-					pa.getValRequests.Delete(peerMessage.ID)
-				}
-			default:
-				if pa.IsAllowed(pa.connection.Hostname()) {
-					pa.MessageHandler(pa.connection.Hostname(), peerMessage.ID, peerMessage.Context, peerMessage.Data)
-
-					// Acknowledge the message
-					pa.SendMessage(PeerMessage{peerMessage.ID, event.ContextAck, []byte{}})
-				}
-			}
-		} else {
-			log.Errorf("Error unmarshalling PeerMessage package: %x %v", message, err)
-		}
-	}
-}
-
-// SendMessage sends the peer a preformatted message
-// NOTE: This is a stub, we will likely want to extend this to better reflect the desired protocol
-func (pa *PeerApp) SendMessage(message PeerMessage) {
-	if message.Context == event.ContextGetVal {
-		pa.getValRequests.Store(message.ID, string(message.Data))
-	}
-	serialized, _ := json.Marshal(message)
-	pa.connection.Send(serialized)
-}

protocol/connections/tokenboardclientapp.go

@@ -1,209 +0,0 @@
-package connections
-
-import (
-	"cwtch.im/cwtch/protocol/groups"
-	"encoding/json"
-	"errors"
-	"git.openprivacy.ca/cwtch.im/tapir"
-	"git.openprivacy.ca/cwtch.im/tapir/applications"
-	"git.openprivacy.ca/cwtch.im/tapir/networks/tor"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives/privacypass"
-	"git.openprivacy.ca/openprivacy/connectivity"
-	"git.openprivacy.ca/openprivacy/log"
-	"github.com/gtank/ristretto255"
-	"sync"
-)
-
-// NewTokenBoardClient generates a new Client for Token Board
-func NewTokenBoardClient(acn connectivity.ACN, Y *ristretto255.Element, tokenServiceOnion string, lastKnownSignature []byte, groupMessageHandler func(server string, gm *groups.EncryptedGroupMessage), serverSyncedHandler func(server string), serverClosedHandler func(server string)) tapir.Application {
-	tba := new(TokenBoardClient)
-	tba.acn = acn
-	tba.tokenService = privacypass.NewTokenServer()
-	tba.tokenService.Y = Y
-	tba.tokenServiceOnion = tokenServiceOnion
-	tba.receiveGroupMessageHandler = groupMessageHandler
-	tba.serverSyncedHandler = serverSyncedHandler
-	tba.serverClosedHandler = serverClosedHandler
-	tba.lastKnownSignature = lastKnownSignature
-	return tba
-}
-
-// TokenBoardClient defines a client for the TokenBoard server
-type TokenBoardClient struct {
-	applications.AuthApp
-	connection                 tapir.Connection
-	receiveGroupMessageHandler func(server string, gm *groups.EncryptedGroupMessage)
-	serverSyncedHandler        func(server string)
-	serverClosedHandler        func(server string)
-
-	// Token service handling
-	acn                connectivity.ACN
-	tokens             []*privacypass.Token
-	tokenLock          sync.Mutex
-	tokenService       *privacypass.TokenServer
-	tokenServiceOnion  string
-	lastKnownSignature []byte
-}
-
-// NewInstance Client a new TokenBoardApp
-func (ta *TokenBoardClient) NewInstance() tapir.Application {
-	tba := new(TokenBoardClient)
-	tba.serverSyncedHandler = ta.serverSyncedHandler
-	tba.serverClosedHandler = ta.serverClosedHandler
-	tba.receiveGroupMessageHandler = ta.receiveGroupMessageHandler
-	tba.acn = ta.acn
-	tba.tokenService = ta.tokenService
-	tba.tokenServiceOnion = ta.tokenServiceOnion
-	tba.lastKnownSignature = ta.lastKnownSignature
-	return tba
-}
-
-// Init initializes the cryptographic TokenBoardApp
-func (ta *TokenBoardClient) Init(connection tapir.Connection) {
-	ta.AuthApp.Init(connection)
-	if connection.HasCapability(applications.AuthCapability) {
-		ta.connection = connection
-		ta.connection.SetCapability(groups.CwtchServerSyncedCapability)
-		log.Debugf("Successfully Initialized Connection")
-		go ta.Listen()
-		// Optimistically acquire many tokens for this server...
-		go ta.MakePayment()
-		go ta.MakePayment()
-		ta.Replay()
-	} else {
-		connection.Close()
-	}
-}
-
-// Listen processes the messages for this application
-func (ta *TokenBoardClient) Listen() {
-	for {
-		log.Debugf("Client waiting...")
-		data := ta.connection.Expect()
-		if len(data) == 0 {
-			log.Debugf("Server closed the connection...")
-			ta.serverClosedHandler(ta.connection.Hostname())
-			return // connection is closed
-		}
-
-		// We always expect the server to follow protocol, and the second it doesn't we close the connection
-		var message groups.Message
-		if err := json.Unmarshal(data, &message); err != nil {
-			log.Debugf("Server sent an unexpected message, closing the connection: %v", err)
-			ta.serverClosedHandler(ta.connection.Hostname())
-			ta.connection.Close()
-			return
-		}
-
-		switch message.MessageType {
-		case groups.NewMessageMessage:
-			if message.NewMessage != nil {
-				ta.receiveGroupMessageHandler(ta.connection.Hostname(), &message.NewMessage.EGM)
-			} else {
-				log.Debugf("Server sent an unexpected NewMessage, closing the connection: %s", data)
-				ta.serverClosedHandler(ta.connection.Hostname())
-				ta.connection.Close()
-				return
-			}
-		case groups.PostResultMessage:
-			// TODO handle failure
-		case groups.ReplayResultMessage:
-			if message.ReplayResult != nil {
-				log.Debugf("Replaying %v Messages...", message.ReplayResult.NumMessages)
-				for i := 0; i < message.ReplayResult.NumMessages; i++ {
-					data := ta.connection.Expect()
-
-					if len(data) == 0 {
-						log.Debugf("Server sent an unexpected EncryptedGroupMessage, closing the connection")
-						ta.serverClosedHandler(ta.connection.Hostname())
-						ta.connection.Close()
-						return
-					}
-
-					egm := &groups.EncryptedGroupMessage{}
-					if err := json.Unmarshal(data, egm); err == nil {
-						ta.receiveGroupMessageHandler(ta.connection.Hostname(), egm)
-						ta.lastKnownSignature = egm.Signature
-					} else {
-						log.Debugf("Server sent an unexpected EncryptedGroupMessage, closing the connection: %v", err)
-						ta.serverClosedHandler(ta.connection.Hostname())
-						ta.connection.Close()
-						return
-					}
-				}
-				ta.serverSyncedHandler(ta.connection.Hostname())
-			}
-		}
-	}
-}
-
-// Replay posts a Replay Message to the server.
-func (ta *TokenBoardClient) Replay() {
-	data, _ := json.Marshal(groups.Message{MessageType: groups.ReplayRequestMessage, ReplayRequest: &groups.ReplayRequest{LastCommit: ta.lastKnownSignature}})
-	ta.connection.Send(data)
-}
-
-// PurchaseTokens purchases the given number of tokens from the server (using the provided payment handler)
-func (ta *TokenBoardClient) PurchaseTokens() {
-	ta.MakePayment()
-}
-
-// Post sends a Post Request to the server
-func (ta *TokenBoardClient) Post(ct []byte, sig []byte) (bool, int) {
-	egm := groups.EncryptedGroupMessage{Ciphertext: ct, Signature: sig}
-	token, numTokens, err := ta.NextToken(egm.ToBytes(), ta.connection.Hostname())
-	if err == nil {
-		data, _ := json.Marshal(groups.Message{MessageType: groups.PostRequestMessage, PostRequest: &groups.PostRequest{EGM: egm, Token: token}})
-		log.Debugf("Message Length: %s %v", data, len(data))
-		ta.connection.Send(data)
-		return true, numTokens
-	}
-	log.Debugf("No Valid Tokens: %v", err)
-	return false, numTokens
-}
-
-// MakePayment uses the PoW based token protocol to obtain more tokens
-func (ta *TokenBoardClient) MakePayment() error {
-	log.Debugf("Making a Payment %v", ta)
-	id, sk := primitives.InitializeEphemeralIdentity()
-	client := new(tor.BaseOnionService)
-	client.Init(ta.acn, sk, &id)
-
-	tokenApplication := new(applications.TokenApplication)
-	tokenApplication.TokenService = ta.tokenService
-	powTokenApp := new(applications.ApplicationChain).
-		ChainApplication(new(applications.ProofOfWorkApplication), applications.SuccessfulProofOfWorkCapability).
-		ChainApplication(tokenApplication, applications.HasTokensCapability)
-	client.Connect(ta.tokenServiceOnion, powTokenApp)
-	log.Debugf("Waiting for successful PoW Auth...")
-	conn, err := client.WaitForCapabilityOrClose(ta.tokenServiceOnion, applications.HasTokensCapability)
-	if err == nil {
-		powtapp, _ := conn.App().(*applications.TokenApplication)
-		// Update tokens...we need a lock here to prevent SpendToken from modifying the tokens
-		// during this process..
-		log.Debugf("Updating Tokens")
-		ta.tokenLock.Lock()
-		ta.tokens = append(ta.tokens, powtapp.Tokens...)
-		ta.tokenLock.Unlock()
-		log.Debugf("Transcript: %v", powtapp.Transcript().OutputTranscriptToAudit())
-		conn.Close()
-		return nil
-	}
-	log.Debugf("Error making payment: to %v %v", ta.tokenServiceOnion, err)
-	return err
-}
-
-// NextToken retrieves the next token
-func (ta *TokenBoardClient) NextToken(data []byte, hostname string) (privacypass.SpentToken, int, error) {
-	// Taken the first new token, we need a lock here because tokens can be appended by MakePayment
-	// which could result in weird behaviour...
-	ta.tokenLock.Lock()
-	defer ta.tokenLock.Unlock()
-	if len(ta.tokens) == 0 {
-		return privacypass.SpentToken{}, len(ta.tokens), errors.New("no more tokens")
-	}
-	token := ta.tokens[0]
-	ta.tokens = ta.tokens[1:]
-	return token.SpendToken(append(data, hostname...)), len(ta.tokens), nil
-}

protocol/cwtch-profile.pb.go

@@ -0,0 +1,135 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: cwtch-profile.proto
+
+/*
+Package protocol is a generated protocol buffer package.
+
+It is generated from these files:
+	cwtch-profile.proto
+
+It has these top-level messages:
+	CwtchPeerPacket
+	CwtchIdentity
+	GroupChatInvite
+*/
+package protocol
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type CwtchPeerPacket struct {
+	CwtchIdentify   *CwtchIdentity   `protobuf:"bytes,1,opt,name=cwtch_identify,json=cwtchIdentify" json:"cwtch_identify,omitempty"`
+	GroupChatInvite *GroupChatInvite `protobuf:"bytes,2,opt,name=group_chat_invite,json=groupChatInvite" json:"group_chat_invite,omitempty"`
+}
+
+func (m *CwtchPeerPacket) Reset()                    { *m = CwtchPeerPacket{} }
+func (m *CwtchPeerPacket) String() string            { return proto.CompactTextString(m) }
+func (*CwtchPeerPacket) ProtoMessage()               {}
+func (*CwtchPeerPacket) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *CwtchPeerPacket) GetCwtchIdentify() *CwtchIdentity {
+	if m != nil {
+		return m.CwtchIdentify
+	}
+	return nil
+}
+
+func (m *CwtchPeerPacket) GetGroupChatInvite() *GroupChatInvite {
+	if m != nil {
+		return m.GroupChatInvite
+	}
+	return nil
+}
+
+type CwtchIdentity struct {
+	Name             string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	Ed25519PublicKey []byte `protobuf:"bytes,2,opt,name=ed25519_public_key,json=ed25519PublicKey,proto3" json:"ed25519_public_key,omitempty"`
+}
+
+func (m *CwtchIdentity) Reset()                    { *m = CwtchIdentity{} }
+func (m *CwtchIdentity) String() string            { return proto.CompactTextString(m) }
+func (*CwtchIdentity) ProtoMessage()               {}
+func (*CwtchIdentity) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *CwtchIdentity) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+func (m *CwtchIdentity) GetEd25519PublicKey() []byte {
+	if m != nil {
+		return m.Ed25519PublicKey
+	}
+	return nil
+}
+
+// [name] has invited you to join a group chat: [message]
+type GroupChatInvite struct {
+	GroupName      string `protobuf:"bytes,1,opt,name=group_name,json=groupName" json:"group_name,omitempty"`
+	GroupSharedKey []byte `protobuf:"bytes,2,opt,name=group_shared_key,json=groupSharedKey,proto3" json:"group_shared_key,omitempty"`
+	ServerHost     string `protobuf:"bytes,3,opt,name=server_host,json=serverHost" json:"server_host,omitempty"`
+	SignedGroupId  []byte `protobuf:"bytes,4,opt,name=signed_group_id,json=signedGroupId,proto3" json:"signed_group_id,omitempty"`
+	InitialMessage []byte `protobuf:"bytes,5,opt,name=initial_message,json=initialMessage,proto3" json:"initial_message,omitempty"`
+}
+
+func (m *GroupChatInvite) Reset()                    { *m = GroupChatInvite{} }
+func (m *GroupChatInvite) String() string            { return proto.CompactTextString(m) }
+func (*GroupChatInvite) ProtoMessage()               {}
+func (*GroupChatInvite) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *GroupChatInvite) GetGroupName() string {
+	if m != nil {
+		return m.GroupName
+	}
+	return ""
+}
+
+func (m *GroupChatInvite) GetGroupSharedKey() []byte {
+	if m != nil {
+		return m.GroupSharedKey
+	}
+	return nil
+}
+
+func (m *GroupChatInvite) GetServerHost() string {
+	if m != nil {
+		return m.ServerHost
+	}
+	return ""
+}
+
+func (m *GroupChatInvite) GetSignedGroupId() []byte {
+	if m != nil {
+		return m.SignedGroupId
+	}
+	return nil
+}
+
+func (m *GroupChatInvite) GetInitialMessage() []byte {
+	if m != nil {
+		return m.InitialMessage
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*CwtchPeerPacket)(nil), "protocol.CwtchPeerPacket")
+	proto.RegisterType((*CwtchIdentity)(nil), "protocol.CwtchIdentity")
+	proto.RegisterType((*GroupChatInvite)(nil), "protocol.GroupChatInvite")
+}
+
+func init() { proto.RegisterFile("cwtch-profile.proto", fileDescriptor0) }

protocol/cwtch-profile.proto

@@ -0,0 +1,21 @@
+syntax = "proto3";
+package protocol;
+
+message CwtchPeerPacket {
+        CwtchIdentity cwtch_identify = 1;
+        GroupChatInvite group_chat_invite = 2;
+}
+
+message CwtchIdentity {
+        string name = 1;
+        bytes  ed25519_public_key = 2;
+}
+
+// [name] has invited you to join a group chat: [message]
+message GroupChatInvite {
+        string group_name = 1;
+        bytes  group_shared_key = 2;
+        string server_host = 3;
+        bytes  signed_group_id = 4;
+        bytes  initial_message = 5;
+}

protocol/group_message.pb.go

@@ -0,0 +1,188 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: group_message.proto
+
+package protocol
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import control "git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type CwtchServerPacket struct {
+	GroupMessage     *GroupMessage `protobuf:"bytes,1,opt,name=group_message,json=groupMessage" json:"group_message,omitempty"`
+	FetchMessage     *FetchMessage `protobuf:"bytes,2,opt,name=fetch_message,json=fetchMessage" json:"fetch_message,omitempty"`
+	XXX_unrecognized []byte        `json:"-"`
+}
+
+func (m *CwtchServerPacket) Reset()                    { *m = CwtchServerPacket{} }
+func (m *CwtchServerPacket) String() string            { return proto.CompactTextString(m) }
+func (*CwtchServerPacket) ProtoMessage()               {}
+func (*CwtchServerPacket) Descriptor() ([]byte, []int) { return fileDescriptor2, []int{0} }
+
+func (m *CwtchServerPacket) GetGroupMessage() *GroupMessage {
+	if m != nil {
+		return m.GroupMessage
+	}
+	return nil
+}
+
+func (m *CwtchServerPacket) GetFetchMessage() *FetchMessage {
+	if m != nil {
+		return m.FetchMessage
+	}
+	return nil
+}
+
+type FetchMessage struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *FetchMessage) Reset()                    { *m = FetchMessage{} }
+func (m *FetchMessage) String() string            { return proto.CompactTextString(m) }
+func (*FetchMessage) ProtoMessage()               {}
+func (*FetchMessage) Descriptor() ([]byte, []int) { return fileDescriptor2, []int{1} }
+
+type GroupMessage struct {
+	Ciphertext       []byte `protobuf:"bytes,1,req,name=ciphertext" json:"ciphertext,omitempty"`
+	Spamguard        []byte `protobuf:"bytes,2,req,name=spamguard" json:"spamguard,omitempty"`
+	Signature        []byte `protobuf:"bytes,3,req,name=signature" json:"signature,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *GroupMessage) Reset()                    { *m = GroupMessage{} }
+func (m *GroupMessage) String() string            { return proto.CompactTextString(m) }
+func (*GroupMessage) ProtoMessage()               {}
+func (*GroupMessage) Descriptor() ([]byte, []int) { return fileDescriptor2, []int{2} }
+
+func (m *GroupMessage) GetCiphertext() []byte {
+	if m != nil {
+		return m.Ciphertext
+	}
+	return nil
+}
+
+func (m *GroupMessage) GetSpamguard() []byte {
+	if m != nil {
+		return m.Spamguard
+	}
+	return nil
+}
+
+func (m *GroupMessage) GetSignature() []byte {
+	if m != nil {
+		return m.Signature
+	}
+	return nil
+}
+
+// DecryptedGroupMessage is *never* sent in the clear on the wire
+// and is only ever sent when encrypted in the ciphertext parameter of
+// GroupMessage
+type DecryptedGroupMessage struct {
+	Onion              *string `protobuf:"bytes,1,req,name=onion" json:"onion,omitempty"`
+	Timestamp          *int32  `protobuf:"varint,2,req,name=timestamp" json:"timestamp,omitempty"`
+	Text               *string `protobuf:"bytes,3,req,name=text" json:"text,omitempty"`
+	SignedGroupId      []byte  `protobuf:"bytes,4,req,name=signed_group_id,json=signedGroupId" json:"signed_group_id,omitempty"`
+	PreviousMessageSig []byte  `protobuf:"bytes,5,req,name=previous_message_sig,json=previousMessageSig" json:"previous_message_sig,omitempty"`
+	// Used to prevent analysis on text length, length is 1024 - len(text)
+	Padding          []byte `protobuf:"bytes,6,req,name=padding" json:"padding,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *DecryptedGroupMessage) Reset()                    { *m = DecryptedGroupMessage{} }
+func (m *DecryptedGroupMessage) String() string            { return proto.CompactTextString(m) }
+func (*DecryptedGroupMessage) ProtoMessage()               {}
+func (*DecryptedGroupMessage) Descriptor() ([]byte, []int) { return fileDescriptor2, []int{3} }
+
+func (m *DecryptedGroupMessage) GetOnion() string {
+	if m != nil && m.Onion != nil {
+		return *m.Onion
+	}
+	return ""
+}
+
+func (m *DecryptedGroupMessage) GetTimestamp() int32 {
+	if m != nil && m.Timestamp != nil {
+		return *m.Timestamp
+	}
+	return 0
+}
+
+func (m *DecryptedGroupMessage) GetText() string {
+	if m != nil && m.Text != nil {
+		return *m.Text
+	}
+	return ""
+}
+
+func (m *DecryptedGroupMessage) GetSignedGroupId() []byte {
+	if m != nil {
+		return m.SignedGroupId
+	}
+	return nil
+}
+
+func (m *DecryptedGroupMessage) GetPreviousMessageSig() []byte {
+	if m != nil {
+		return m.PreviousMessageSig
+	}
+	return nil
+}
+
+func (m *DecryptedGroupMessage) GetPadding() []byte {
+	if m != nil {
+		return m.Padding
+	}
+	return nil
+}
+
+var E_ServerNonce = &proto.ExtensionDesc{
+	ExtendedType:  (*control.ChannelResult)(nil),
+	ExtensionType: ([]byte)(nil),
+	Field:         8200,
+	Name:          "protocol.server_nonce",
+	Tag:           "bytes,8200,opt,name=server_nonce,json=serverNonce",
+	Filename:      "group_message.proto",
+}
+
+func init() {
+	proto.RegisterType((*CwtchServerPacket)(nil), "protocol.CwtchServerPacket")
+	proto.RegisterType((*FetchMessage)(nil), "protocol.FetchMessage")
+	proto.RegisterType((*GroupMessage)(nil), "protocol.GroupMessage")
+	proto.RegisterType((*DecryptedGroupMessage)(nil), "protocol.DecryptedGroupMessage")
+	proto.RegisterExtension(E_ServerNonce)
+}
+
+func init() { proto.RegisterFile("group_message.proto", fileDescriptor2) }
+
+var fileDescriptor2 = []byte{
+	// 360 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x5c, 0x92, 0x4d, 0x6e, 0xdb, 0x30,
+	0x10, 0x85, 0x21, 0xff, 0xb4, 0xf5, 0x58, 0x6e, 0x51, 0xd6, 0x6d, 0x89, 0xa2, 0x28, 0x0c, 0x2d,
+	0x0a, 0xaf, 0x8c, 0x20, 0xcb, 0x78, 0x13, 0xc0, 0x41, 0x82, 0x2c, 0x12, 0x04, 0xf2, 0x01, 0x04,
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+	0x88, 0xb2, 0x6c, 0x39, 0x2b, 0x69, 0xde, 0x37, 0x6f, 0xde, 0x80, 0x24, 0xfc, 0xe0, 0x46, 0x55,
+	0x3a, 0x29, 0xd1, 0x5a, 0xc6, 0x71, 0xa1, 0x8d, 0x72, 0x8a, 0x7c, 0xf1, 0x9f, 0x54, 0x15, 0x7f,
+	0xa6, 0x2b, 0x25, 0x9d, 0x51, 0xc5, 0x2a, 0x67, 0x52, 0x62, 0xd1, 0xf0, 0xe8, 0x35, 0x80, 0xef,
+	0xab, 0x47, 0x97, 0xe6, 0x6b, 0x34, 0x5b, 0x34, 0x77, 0x2c, 0x7d, 0x40, 0x47, 0x96, 0x30, 0x39,
+	0x1a, 0x46, 0x83, 0x59, 0x30, 0x1f, 0x9f, 0xfe, 0x5a, 0xb4, 0xd3, 0x16, 0x57, 0x35, 0xbe, 0x69,
+	0x68, 0x1c, 0xf2, 0x4e, 0x55, 0x9b, 0x37, 0xe8, 0xd2, 0x7c, 0x6f, 0xee, 0x7d, 0x34, 0x5f, 0xd6,
+	0x78, 0x6f, 0xde, 0x74, 0xaa, 0xe8, 0x2b, 0x84, 0x5d, 0x1a, 0xdd, 0x43, 0xd8, 0x8d, 0x22, 0xff,
+	0x00, 0x52, 0xa1, 0x73, 0x34, 0x0e, 0x9f, 0x1c, 0x0d, 0x66, 0xbd, 0x79, 0x18, 0x77, 0x14, 0xf2,
+	0x17, 0x46, 0x56, 0xb3, 0x92, 0x57, 0xcc, 0x64, 0xb4, 0xe7, 0xf1, 0x41, 0xf0, 0x54, 0x70, 0xc9,
+	0x5c, 0x65, 0x90, 0xf6, 0x77, 0xb4, 0x15, 0xa2, 0xb7, 0x00, 0x7e, 0x5e, 0x60, 0x6a, 0x9e, 0xb5,
+	0xc3, 0xec, 0x28, 0x75, 0x0a, 0x43, 0x25, 0x85, 0x92, 0x3e, 0x70, 0x14, 0x37, 0x45, 0x3d, 0xcd,
+	0x89, 0x12, 0xad, 0x63, 0xa5, 0xf6, 0x59, 0xc3, 0xf8, 0x20, 0x10, 0x02, 0x03, 0xbf, 0x63, 0xdf,
+	0x5b, 0xfc, 0x3f, 0xf9, 0x0f, 0xdf, 0xea, 0x38, 0xcc, 0x92, 0xe6, 0x78, 0x45, 0x46, 0x07, 0x7e,
+	0x8b, 0x49, 0x23, 0xfb, 0xd0, 0xeb, 0x8c, 0x9c, 0xc0, 0x54, 0x1b, 0xdc, 0x0a, 0x55, 0xd9, 0xf6,
+	0x14, 0x13, 0x2b, 0x38, 0x1d, 0xfa, 0x66, 0xd2, 0xb2, 0xdd, 0x7a, 0x6b, 0xc1, 0x09, 0x85, 0xcf,
+	0x9a, 0x65, 0x99, 0x90, 0x9c, 0x7e, 0xf2, 0x4d, 0x6d, 0x79, 0xb6, 0x84, 0xd0, 0xfa, 0xbb, 0x4d,
+	0xa4, 0x92, 0x29, 0x92, 0xdf, 0x87, 0x7b, 0xd8, 0x3d, 0x85, 0x18, 0x6d, 0x55, 0x38, 0xfa, 0x72,
+	0x3e, 0x0b, 0xe6, 0x61, 0x3c, 0x6e, 0xba, 0x6f, 0xeb, 0xe6, 0xf7, 0x00, 0x00, 0x00, 0xff, 0xff,
+	0x33, 0x30, 0xca, 0x8b, 0x54, 0x02, 0x00, 0x00,
+}

protocol/group_message.proto

@@ -0,0 +1,35 @@
+syntax = "proto2";
+package protocol;
+
+import "ControlChannel.proto";
+
+message CwtchServerPacket {
+       optional GroupMessage group_message = 1;
+       optional FetchMessage fetch_message = 2;
+}
+
+extend protocol.ChannelResult {
+    optional bytes server_nonce = 8200;      // 32 random bytes
+}
+
+message FetchMessage {
+}
+
+message GroupMessage {
+        required bytes ciphertext = 1;
+        required bytes spamguard = 2;
+        required bytes signature = 3;
+}
+
+// DecryptedGroupMessage is *never* sent in the clear on the wire
+// and is only ever sent when encrypted in the ciphertext parameter of
+// GroupMessage
+message DecryptedGroupMessage {
+        required string onion = 1;
+        required int32 timestamp = 2;
+        required string text = 3;
+        required bytes signed_group_id = 4;
+        required bytes previous_message_sig =5;
+        // Used to prevent analysis on text length, length is 1024 - len(text)
+        required bytes padding = 6;
+}

protocol/groups/common.go

@@ -1,95 +0,0 @@
-package groups
-
-import (
-	"encoding/json"
-	"git.openprivacy.ca/cwtch.im/tapir"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives/privacypass"
-)
-
-// CwtchServerSyncedCapability is used to indicate that a given cwtch server is synced
-const CwtchServerSyncedCapability = tapir.Capability("CwtchServerSyncedCapability")
-
-// GroupInvite provides a structured type for communicating group information to peers
-type GroupInvite struct {
-	GroupID       string
-	GroupName     string
-	SignedGroupID []byte
-	Timestamp     uint64
-	SharedKey     []byte
-	ServerHost    string
-}
-
-// DecryptedGroupMessage is the main encapsulation of group message data
-type DecryptedGroupMessage struct {
-	Text      string
-	Onion     string
-	Timestamp uint64
-	// NOTE: SignedGroupID is now a misnomer, the only way this is signed is indirectly via the signed encrypted group messages
-	// We now treat GroupID as binding to a server/key rather than an "owner" - additional validation logic (to e.g.
-	// respect particular group constitutions) can be built on top of group messages, but the underlying groups are
-	// now agnostic to those models.
-	SignedGroupID      []byte
-	PreviousMessageSig []byte
-	Padding            []byte
-}
-
-// EncryptedGroupMessage provides an encapsulation of the encrypted group message stored on the server
-type EncryptedGroupMessage struct {
-	Ciphertext []byte
-	Signature  []byte
-}
-
-// ToBytes converts the encrypted group message to a set of bytes for serialization
-func (egm EncryptedGroupMessage) ToBytes() []byte {
-	data, _ := json.Marshal(egm)
-	return data
-}
-
-// MessageType defines the enum for TokenBoard messages
-type MessageType int
-
-// Message Types
-const (
-	ReplayRequestMessage MessageType = iota
-	ReplayResultMessage
-	PostRequestMessage
-	PostResultMessage
-	NewMessageMessage
-)
-
-// Message encapsulates the application protocol
-type Message struct {
-	MessageType   MessageType
-	PostRequest   *PostRequest   `json:",omitempty"`
-	PostResult    *PostResult    `json:",omitempty"`
-	NewMessage    *NewMessage    `json:",omitempty"`
-	ReplayRequest *ReplayRequest `json:",omitempty"`
-	ReplayResult  *ReplayResult  `json:",omitempty"`
-}
-
-// ReplayRequest requests a reply from the given Commit
-type ReplayRequest struct {
-	LastCommit []byte
-}
-
-// PostRequest requests to post the message to the board with the given token
-type PostRequest struct {
-	Token privacypass.SpentToken
-	EGM   EncryptedGroupMessage
-}
-
-// PostResult returns the success of a given post attempt
-type PostResult struct {
-	Success bool
-}
-
-// ReplayResult is sent by the server before a stream of replayed messages
-type ReplayResult struct {
-	NumMessages int
-}
-
-// NewMessage is used to send a new bulletin board message to interested peers.
-type NewMessage struct {
-	//Token   privacypass.SpentToken
-	EGM EncryptedGroupMessage
-}

protocol/spam/spamguard.go

@@ -0,0 +1,100 @@
+package spam
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"io"
+	//"fmt"
+)
+
+// Guard implements a spam protection mechanism for Cwtch Servers.
+type Guard struct {
+	Difficulty int
+	nonce      [24]byte
+}
+
+func getRandomness(arr *[24]byte) {
+	if _, err := io.ReadFull(rand.Reader, arr[:]); err != nil {
+		utils.CheckError(err)
+	}
+}
+
+//GenerateChallenge returns a channel result packet with a spamguard challenge nonce
+func (sg *Guard) GenerateChallenge(channelID int32) []byte {
+
+	cr := &Protocol_Data_Control.ChannelResult{
+		ChannelIdentifier: proto.Int32(channelID),
+		Opened:            proto.Bool(true),
+	}
+
+	var nonce [24]byte
+	getRandomness(&nonce)
+	sg.nonce = nonce
+	err := proto.SetExtension(cr, protocol.E_ServerNonce, sg.nonce[:])
+	utils.CheckError(err)
+
+	pc := &Protocol_Data_Control.Packet{
+		ChannelResult: cr,
+	}
+	ret, err := proto.Marshal(pc)
+	utils.CheckError(err)
+	return ret
+}
+
+// SolveChallenge takes in a challenge and a message and returns a solution
+// The solution is a 24 byte nonce which when hashed with the challenge and the message
+// produces a sha256 hash with Difficulty leading 0s
+func (sg *Guard) SolveChallenge(challenge []byte, message []byte) []byte {
+	solved := false
+	var spamguard [24]byte
+	sum := sha256.Sum256([]byte{})
+	solve := make([]byte, len(challenge)+len(message)+len(spamguard))
+	for !solved {
+
+		getRandomness(&spamguard)
+
+		copy(solve[0:], challenge[:])
+		copy(solve[len(challenge):], message[:])
+		copy(solve[len(challenge)+len(message):], spamguard[:])
+
+		sum = sha256.Sum256(solve)
+
+		solved = true
+		for i := 0; i < sg.Difficulty; i++ {
+			if sum[i] != 0x00 {
+				solved = false
+			}
+		}
+	}
+	//fmt.Printf("[SOLVED] %x\n",sha256.Sum256(solve))
+	return spamguard[:]
+}
+
+// ValidateChallenge returns true if the message and spamguard pass the challenge
+func (sg *Guard) ValidateChallenge(message []byte, spamguard []byte) bool {
+	if len(spamguard) != 24 {
+		return false
+	}
+
+	// If the message is too large just throw it away.
+	if len(message) > 2048 {
+		return false
+	}
+
+	solve := make([]byte, len(sg.nonce)+len(message)+len(spamguard))
+	copy(solve[0:], sg.nonce[:])
+	copy(solve[len(sg.nonce):], message[:])
+	copy(solve[len(sg.nonce)+len(message):], spamguard[:])
+	sum := sha256.Sum256(solve)
+
+	for i := 0; i < sg.Difficulty; i++ {
+		if sum[i] != 0x00 {
+			return false
+		}
+	}
+	return true
+}

protocol/spam/spamguard_test.go

@@ -0,0 +1,69 @@
+package spam
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+)
+
+func TestSpamGuard(t *testing.T) {
+	var spamGuard Guard
+	spamGuard.Difficulty = 2
+	challenge := spamGuard.GenerateChallenge(3)
+
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(challenge[:], control)
+
+	if control.GetChannelResult() != nil {
+		ce, _ := proto.GetExtension(control.GetChannelResult(), protocol.E_ServerNonce)
+		challenge := ce.([]byte)[:]
+
+		sgsolve := spamGuard.SolveChallenge(challenge, []byte("Hello"))
+		t.Logf("Solved: %v %v", challenge, sgsolve)
+		result := spamGuard.ValidateChallenge([]byte("Hello"), sgsolve)
+		if result != true {
+			t.Errorf("Validating Guard Failed")
+		}
+		return
+	}
+
+	t.Errorf("Failed SpamGaurd")
+
+}
+
+func TestSpamGuardBadLength(t *testing.T) {
+	var spamGuard Guard
+	spamGuard.Difficulty = 2
+	spamGuard.GenerateChallenge(3)
+	result := spamGuard.ValidateChallenge([]byte("test"), []byte{0x00, 0x00})
+	if result {
+		t.Errorf("Validating Guard should have failed")
+	}
+}
+
+func TestSpamGuardFail(t *testing.T) {
+	var spamGuard Guard
+	spamGuard.Difficulty = 2
+	challenge := spamGuard.GenerateChallenge(3)
+
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(challenge[:], control)
+
+	if control.GetChannelResult() != nil {
+		ce, _ := proto.GetExtension(control.GetChannelResult(), protocol.E_ServerNonce)
+		challenge := ce.([]byte)[:]
+
+		var spamGuard2 Guard
+		spamGuard2.Difficulty = 1
+		sgsolve := spamGuard2.SolveChallenge(challenge, []byte("Hello"))
+		t.Logf("Solved: %v %v", challenge, sgsolve)
+		result := spamGuard.ValidateChallenge([]byte("Hello"), sgsolve)
+		if result {
+			t.Errorf("Validating Guard successes")
+		}
+		return
+	}
+
+	t.Errorf("Failed SpamGaurd")
+}

server/app/main.go

@@ -1,18 +1,8 @@
 package main
 
 import (
-	"crypto/rand"
-	"cwtch.im/cwtch/model"
 	cwtchserver "cwtch.im/cwtch/server"
-	"encoding/base64"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"git.openprivacy.ca/openprivacy/connectivity/tor"
-	"git.openprivacy.ca/openprivacy/log"
-	mrand "math/rand"
-	"os"
-	"os/signal"
-	"syscall"
-	"time"
+	"log"
 )
 
 const (
@@ -20,81 +10,11 @@ const (
 )
 
 func main() {
-	log.AddEverythingFromPattern("server/app/main")
-	log.AddEverythingFromPattern("server/server")
-	log.SetLevel(log.LevelDebug)
-	configDir := os.Getenv("CWTCH_CONFIG_DIR")
-
-	if len(os.Args) == 2 && os.Args[1] == "gen1" {
-		config := new(cwtchserver.Config)
-		id, pk := primitives.InitializeEphemeralIdentity()
-		tid, tpk := primitives.InitializeEphemeralIdentity()
-		config.PrivateKey = pk
-		config.PublicKey = id.PublicKey()
-		config.TokenServerPrivateKey = tpk
-		config.TokenServerPublicKey = tid.PublicKey()
-		config.MaxBufferLines = 100000
-		config.ServerReporting = cwtchserver.Reporting{
-			LogMetricsToFile:    true,
-			ReportingGroupID:    "",
-			ReportingServerAddr: "",
-		}
-		config.Save(".", "serverConfig.json")
-		return
-	}
-
-	serverConfig := cwtchserver.LoadConfig(configDir, serverConfigFile)
-
-	// we don't need real randomness for the port, just to avoid a possible conflict...
-	mrand.Seed(int64(time.Now().Nanosecond()))
-	controlPort := mrand.Intn(1000) + 9052
-
-	// generate a random password
-	key := make([]byte, 64)
-	_, err := rand.Read(key)
-	if err != nil {
-		panic(err)
-	}
-
-	os.MkdirAll("tordir/tor", 0700)
-	tor.NewTorrc().WithHashedPassword(base64.StdEncoding.EncodeToString(key)).WithControlPort(controlPort).Build("./tordir/tor/torrc")
-	acn, err := tor.NewTorACNWithAuth("tordir", "", controlPort, tor.HashedPasswordAuthenticator{Password: base64.StdEncoding.EncodeToString(key)})
-
-	if err != nil {
-		log.Errorf("\nError connecting to Tor: %v\n", err)
-		os.Exit(1)
-	}
-	defer acn.Close()
+	serverConfig := cwtchserver.LoadConfig(serverConfigFile)
 
 	server := new(cwtchserver.Server)
-	log.Infoln("starting cwtch server...")
+	log.Printf("starting cwtch server...")
 
-	server.Setup(serverConfig)
-
-	// TODO create a random group for testing
-	group, _ := model.NewGroup(tor.GetTorV3Hostname(serverConfig.PublicKey))
-	invite, err := group.Invite()
-	if err != nil {
-		panic(err)
-	}
-
-	bundle := server.KeyBundle().Serialize()
-	log.Infof("Server Config: server:%s", base64.StdEncoding.EncodeToString(bundle))
-
-	log.Infof("Server Tofu Bundle: tofubundle:server:%s||%s", base64.StdEncoding.EncodeToString(bundle), invite)
-
-	// Graceful Shutdown
-	c := make(chan os.Signal, 1)
-	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
-	go func() {
-		<-c
-		acn.Close()
-		server.Close()
-		os.Exit(1)
-	}()
-
-	server.Run(acn)
-	for {
-		time.Sleep(time.Second)
-	}
+	// TODO load params from .cwtch/server.conf or command line flag
+	server.Run(serverConfig)
 }

server/docker/docker-entrypoint

@@ -1,33 +0,0 @@
-#!/bin/sh
-set -o errexit
-
-chmod_files() { find $2 -type f -exec chmod -v $1 {} \;
-}
-chmod_dirs() { find $2 -type d -exec chmod -v $1 {} \;
-}
-
-chown ${TOR_USER}:${TOR_USER} /run/tor/
-chmod 770 /run/tor
-
-chown -Rv ${TOR_USER}:${TOR_USER} /var/lib/tor
-chmod_dirs 700 /var/lib/tor
-chmod_files 600 /var/lib/tor
-
-echo -e "\n========================================================"
-# Display OS version, Tor version & torrc in log
-echo -e "Alpine Version: \c" && cat /etc/alpine-release
-tor --version
-#cat /etc/tor/torrc
-echo -e "========================================================\n"
-
-tor -f /etc/tor/torrc
-
-#Cwtch will crash and burn if 9051 isn't ready
-sleep 15
-
-if [ -z "${CWTCH_CONFIG_DIR}" ]; then
-	CWTCH_CONFIG_DIR=/etc/cwtch/
-fi
-
-#Run cwtch (or whatever the user passed)
-CWTCH_CONFIG_DIR=$CWTCH_CONFIG_DIR  exec "$@"

server/docker/torrc

@@ -1,27 +0,0 @@
-User _tor
-DataDirectory /var/lib/tor
-
-ORPort 0 
-ExitRelay 0
-IPv6Exit 0
-
-#We need this running in the background as the server doesn't launch it itself
-RunAsDaemon 1
-
-ClientOnly 1
-SocksPort 9050
-
-ControlPort 9051
-ControlSocket /run/tor/control
-ControlSocketsGroupWritable 1
-CookieAuthentication 1
-CookieAuthFile /run/tor/control.authcookie
-CookieAuthFileGroupReadable 1
-#HashedControlPassword 16:B4C8EE980C085EE460AEA9094350DAA9C2B5F841400E9BBA247368400A
-
-# Run as a relay only (change policy to enable exit node)
-ExitPolicy reject *:*        # no exits allowed
-ExitPolicy reject6 *:*
-
-# Additional config built by the entrypoint will go here
-

server/fetch/server_fetch_channel.go

@@ -0,0 +1,100 @@
+package fetch
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"errors"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+)
+
+// CwtchServerFetchChannel implements the ChannelHandler interface for a channel of
+// type "im.cwtch.server.fetch" - this implementation only handles server side logic.
+type CwtchServerFetchChannel struct {
+	Handler CwtchServerFetchHandler
+	channel *channels.Channel
+}
+
+// CwtchServerFetchHandler defines the interface for interacting with this Channel
+type CwtchServerFetchHandler interface {
+	HandleFetchRequest() []*protocol.GroupMessage
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.Cwtch".
+func (cc *CwtchServerFetchChannel) Type() string {
+	return "im.cwtch.server.fetch"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cc *CwtchServerFetchChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch channels any side can open
+func (cc *CwtchServerFetchChannel) OnlyClientCanOpen() bool {
+	return true
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cc *CwtchServerFetchChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are not bidrectional
+func (cc *CwtchServerFetchChannel) Bidirectional() bool {
+	return false
+}
+
+// RequiresAuthentication - Cwtch channels require hidden service auth
+func (cc *CwtchServerFetchChannel) RequiresAuthentication() string {
+	return "none"
+}
+
+// OpenInbound is the first method called for an inbound channel request.
+// If an error is returned, the channel is rejected. If a RawMessage is
+// returned, it will be sent as the ChannelResult message.
+func (cc *CwtchServerFetchChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	cc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.AckOpenChannel(channel.ID), nil
+}
+
+// OpenOutbound is the first method called for an outbound channel request.
+// If an error is returned, the channel is not opened. If a RawMessage is
+// returned, it will be sent as the OpenChannel message.
+func (cc *CwtchServerFetchChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	return nil, errors.New("server does not open Fetch channels")
+}
+
+// OpenOutboundResult is called when a response is received for an
+// outbound OpenChannel request. If `err` is non-nil, the channel was
+// rejected and Closed will be called immediately afterwards. `raw`
+// contains the raw protocol message including any extension data.
+func (cc *CwtchServerFetchChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	// NOTE: Should never be called
+}
+
+// SendGroupMessages sends a series of group messages to the client.
+func (cc *CwtchServerFetchChannel) SendGroupMessages(gms []*protocol.GroupMessage) {
+	for _, gm := range gms {
+		csp := &protocol.CwtchServerPacket{
+			GroupMessage: gm,
+		}
+		packet, _ := proto.Marshal(csp)
+		cc.channel.SendMessage(packet)
+	}
+}
+
+// Packet is called for each raw packet received on this channel.
+func (cc *CwtchServerFetchChannel) Packet(data []byte) {
+	csp := &protocol.CwtchServerPacket{}
+	err := proto.Unmarshal(data, csp)
+	if err == nil {
+		if csp.GetFetchMessage() != nil {
+			cc.SendGroupMessages(cc.Handler.HandleFetchRequest())
+		}
+	}
+	// If we receive a packet on this channel, close the connection
+	cc.channel.CloseChannel()
+}

server/fetch/server_fetch_channel_test.go

@@ -0,0 +1,109 @@
+package fetch
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+)
+
+func TestServerFetchChannelAttributes(t *testing.T) {
+	cslc := new(CwtchServerFetchChannel)
+	if cslc.Type() != "im.cwtch.server.fetch" {
+		t.Errorf("cwtch channel type is incorrect %v", cslc.Type())
+	}
+
+	if !cslc.OnlyClientCanOpen() {
+		t.Errorf("only clients should be able to open im.cwtch.server.fetch channel")
+	}
+
+	if cslc.Bidirectional() {
+		t.Errorf("im.cwtch.server.fetch should not be bidirectional")
+	}
+
+	if !cslc.Singleton() {
+		t.Errorf("im.cwtch.server.fetch should be a Singleton")
+	}
+
+	if cslc.RequiresAuthentication() != "none" {
+		t.Errorf("cwtch channel required auth is incorrect %v", cslc.RequiresAuthentication())
+	}
+
+}
+func TestServerFetchChannelOpenOutbound(t *testing.T) {
+	cslc := new(CwtchServerFetchChannel)
+	channel := new(channels.Channel)
+	_, err := cslc.OpenOutbound(channel)
+	if err == nil {
+		t.Errorf("server implementation of im.cwtch.server.fetch should never open an outbound channel")
+	}
+}
+
+type TestHandler struct {
+}
+
+func (th *TestHandler) HandleFetchRequest() []*protocol.GroupMessage {
+	gm := &protocol.GroupMessage{
+		Ciphertext: []byte("Hello"),
+		Spamguard:  []byte{},
+	}
+	return []*protocol.GroupMessage{gm}
+}
+
+func TestServerFetchChannel(t *testing.T) {
+	cslc := new(CwtchServerFetchChannel)
+	th := new(TestHandler)
+	cslc.Handler = th
+	channel := new(channels.Channel)
+	channel.ID = 1
+	closed := false
+	channel.CloseChannel = func() {
+		closed = true
+	}
+	gotgm := false
+	channel.SendMessage = func([]byte) {
+		gotgm = true
+	}
+
+	oc := &Protocol_Data_Control.OpenChannel{
+		ChannelIdentifier: proto.Int32(1),
+		ChannelType:       proto.String(cslc.Type()),
+	}
+
+	resp, err := cslc.OpenInbound(channel, oc)
+	if err != nil {
+		t.Errorf("OpenInbound for im.cwtch.server.Fetch should have succeeded, instead: %v", err)
+	}
+
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(resp[:], control)
+
+	if control.GetChannelResult() != nil {
+
+		fm := &protocol.FetchMessage{}
+
+		csp := &protocol.CwtchServerPacket{
+			FetchMessage: fm,
+		}
+
+		packet, _ := proto.Marshal(csp)
+		cslc.Packet(packet)
+
+		if !gotgm {
+			t.Errorf("Did not receive packet on wire as expected in Fetch channel")
+		}
+
+		if !closed {
+			t.Errorf("Fetch channel should be cosed")
+		}
+
+		if !closed {
+			t.Errorf("Fetch channel should be closed after incorrect packet received")
+		}
+
+	} else {
+		t.Errorf("Expected ChannelResult from im.cwtch.server.Fetch, instead: %v", control)
+	}
+
+}

server/listen/server_listen_channel.go

@@ -0,0 +1,85 @@
+package listen
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"errors"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+)
+
+// CwtchServerListenChannel implements the ChannelHandler interface for a channel of
+// type "im.cwtch.server.listen" - this implementation only handles server side logic.
+type CwtchServerListenChannel struct {
+	channel *channels.Channel
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.Cwtch".
+func (cc *CwtchServerListenChannel) Type() string {
+	return "im.cwtch.server.listen"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cc *CwtchServerListenChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch channels any side can open
+func (cc *CwtchServerListenChannel) OnlyClientCanOpen() bool {
+	return true
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cc *CwtchServerListenChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are not bidrectional
+func (cc *CwtchServerListenChannel) Bidirectional() bool {
+	return false
+}
+
+// RequiresAuthentication - Cwtch channels require hidden service auth
+func (cc *CwtchServerListenChannel) RequiresAuthentication() string {
+	return "none"
+}
+
+// OpenInbound is the first method called for an inbound channel request.
+// If an error is returned, the channel is rejected. If a RawMessage is
+// returned, it will be sent as the ChannelResult message.
+func (cc *CwtchServerListenChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	cc.channel = channel
+	messageBuilder := new(utils.MessageBuilder)
+	return messageBuilder.AckOpenChannel(channel.ID), nil
+}
+
+// OpenOutbound is the first method called for an outbound channel request.
+// If an error is returned, the channel is not opened. If a RawMessage is
+// returned, it will be sent as the OpenChannel message.
+func (cc *CwtchServerListenChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	return nil, errors.New("server does not open listen channels")
+}
+
+// OpenOutboundResult is called when a response is received for an
+// outbound OpenChannel request. If `err` is non-nil, the channel was
+// rejected and Closed will be called immediately afterwards. `raw`
+// contains the raw protocol message including any extension data.
+func (cc *CwtchServerListenChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	// NOTE: Should never be called
+}
+
+// SendGroupMessage sends a single group message to the peer
+func (cc *CwtchServerListenChannel) SendGroupMessage(gm *protocol.GroupMessage) {
+	csp := &protocol.CwtchServerPacket{
+		GroupMessage: gm,
+	}
+	packet, _ := proto.Marshal(csp)
+	cc.channel.SendMessage(packet)
+}
+
+// Packet is called for each raw packet received on this channel.
+func (cc *CwtchServerListenChannel) Packet(data []byte) {
+	// If we receive a packet on this channel, close the connection
+	cc.channel.CloseChannel()
+}

server/listen/server_listen_channel_test.go

@@ -0,0 +1,94 @@
+package listen
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+)
+
+func TestServerListenChannelAttributes(t *testing.T) {
+	cslc := new(CwtchServerListenChannel)
+	if cslc.Type() != "im.cwtch.server.listen" {
+		t.Errorf("cwtch channel type is incorrect %v", cslc.Type())
+	}
+
+	if !cslc.OnlyClientCanOpen() {
+		t.Errorf("only clients should be able to open im.cwtch.server.listen channel")
+	}
+
+	if cslc.Bidirectional() {
+		t.Errorf("im.cwtch.server.listen should not be bidirectional")
+	}
+
+	if !cslc.Singleton() {
+		t.Errorf("im.cwtch.server.listen should be a Singleton")
+	}
+
+	if cslc.RequiresAuthentication() != "none" {
+		t.Errorf("cwtch channel required auth is incorrect %v", cslc.RequiresAuthentication())
+	}
+
+}
+func TestServerListenChannelOpenOutbound(t *testing.T) {
+	cslc := new(CwtchServerListenChannel)
+	channel := new(channels.Channel)
+	_, err := cslc.OpenOutbound(channel)
+	if err == nil {
+		t.Errorf("server implementation of im.cwtch.server.listen should never open an outbound channel")
+	}
+}
+
+func TestServerListenChannel(t *testing.T) {
+	cslc := new(CwtchServerListenChannel)
+	channel := new(channels.Channel)
+	channel.ID = 1
+	closed := false
+	channel.CloseChannel = func() {
+		closed = true
+	}
+	gotgm := false
+	channel.SendMessage = func([]byte) {
+		gotgm = true
+	}
+
+	oc := &Protocol_Data_Control.OpenChannel{
+		ChannelIdentifier: proto.Int32(1),
+		ChannelType:       proto.String(cslc.Type()),
+	}
+
+	resp, err := cslc.OpenInbound(channel, oc)
+	if err != nil {
+		t.Errorf("OpenInbound for im.cwtch.server.listen should have succeeded, instead: %v", err)
+	}
+
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(resp[:], control)
+
+	if control.GetChannelResult() != nil {
+		gm := &protocol.GroupMessage{
+			Ciphertext: []byte("Hello"),
+			Signature:  []byte{},
+			Spamguard:  []byte{},
+		}
+		cslc.SendGroupMessage(gm)
+		if !gotgm {
+			t.Errorf("Did not receive packet on wire as expected in listen channel")
+		}
+
+		if closed {
+			t.Errorf("listen channel should not be cosed")
+		}
+
+		cslc.Packet(nil)
+
+		if !closed {
+			t.Errorf("listen channel should be closed after incorrect packet received")
+		}
+
+	} else {
+		t.Errorf("Expected ChannelResult from im.cwtch.server.listen, instead: %v", control)
+	}
+
+}

server/metrics/metrics.go

@@ -12,7 +12,6 @@ import (
 type counter struct {
 	startTime time.Time
 	count     uint64
-	total     uint64
 }
 
 // Counter providers a threadsafe counter to use for storing long running counts
@@ -26,7 +25,7 @@ type Counter interface {
 
 // NewCounter initializes a counter starting at time.Now() and a count of 0 and returns it
 func NewCounter() Counter {
-	c := &counter{startTime: time.Now(), count: 0, total: 0}
+	c := &counter{startTime: time.Now(), count: 0}
 	return c
 }
 
@@ -152,13 +151,11 @@ func (mh *monitorHistory) Months() []float64 {
 }
 
 func (mh *monitorHistory) Report(w *bufio.Writer) {
-	mh.lock.Lock()
 	fmt.Fprintln(w, "Minutes:", reportLine(mh.monitorType, mh.perMinutePerHour[:]))
 	fmt.Fprintln(w, "Hours:  ", reportLine(mh.monitorType, mh.perHourForDay[:]))
 	fmt.Fprintln(w, "Days:   ", reportLine(mh.monitorType, mh.perDayForWeek[:]))
 	fmt.Fprintln(w, "Weeks:  ", reportLine(mh.monitorType, mh.perWeekForMonth[:]))
 	fmt.Fprintln(w, "Months: ", reportLine(mh.monitorType, mh.perMonthForYear[:]))
-	mh.lock.Unlock()
 }
 
 func reportLine(t MonitorType, array []float64) string {

server/metrics/metrics_test.go

@@ -9,20 +9,13 @@ func TestCounter(t *testing.T) {
 	starttime := time.Now()
 	c := NewCounter()
 
-	max := 100
-	done := make(chan bool, max)
-
-	// slightly stress test atomic nature of metric by flooding with threads Add()ing
-	for i := 0; i < max; i++ {
+	for i := 0; i < 100; i++ {
 		go func() {
 			c.Add(1)
-			done <- true
 		}()
 	}
 
-	for i := 0; i < max; i++ {
-		<-done
-	}
+	time.Sleep(2 * time.Second)
 
 	val := c.Count()
 	if val != 100 {
@@ -32,6 +25,6 @@ func TestCounter(t *testing.T) {
 	counterStart := c.GetStarttime()
 
 	if counterStart.Sub(starttime) > time.Millisecond {
-		t.Errorf("counter's starttime was innaccurate %v", counterStart.Sub(starttime))
+		t.Error("counter's starttime was innaccurate")
 	}
 }

server/metrics/monitors.go

@@ -3,12 +3,10 @@ package metrics
 import (
 	"bufio"
 	"fmt"
-	"git.openprivacy.ca/cwtch.im/tapir"
-	"git.openprivacy.ca/openprivacy/log"
+	"git.openprivacy.ca/openprivacy/libricochet-go/application"
 	"github.com/struCoder/pidusage"
+	"log"
 	"os"
-	"path"
-	"sync"
 	"time"
 )
 
@@ -18,51 +16,26 @@ const (
 
 // Monitors is a package of metrics for a Cwtch Server including message count, CPU, Mem, and conns
 type Monitors struct {
-	MessageCounter      Counter
-	TotalMessageCounter Counter
-	Messages            MonitorHistory
-	CPU                 MonitorHistory
-	Memory              MonitorHistory
-	ClientConns         MonitorHistory
-	starttime           time.Time
-	breakChannel        chan bool
-	log                 bool
-	configDir           string
+	MessageCounter Counter
+	Messages       MonitorHistory
+	CPU            MonitorHistory
+	Memory         MonitorHistory
+	ClientConns    MonitorHistory
+	starttime      time.Time
+	breakChannel   chan bool
+	log            bool
 }
 
 // Start initializes a Monitors's monitors
-func (mp *Monitors) Start(ts tapir.Service, configDir string, log bool) {
+func (mp *Monitors) Start(ra *application.RicochetApplication, log bool) {
 	mp.log = log
-	mp.configDir = configDir
 	mp.starttime = time.Now()
 	mp.breakChannel = make(chan bool)
 	mp.MessageCounter = NewCounter()
-
-	// Maintain a count of total messages
-	mp.TotalMessageCounter = NewCounter()
-	mp.Messages = NewMonitorHistory(Count, Cumulative, func() (c float64) {
-		c = float64(mp.MessageCounter.Count())
-		mp.TotalMessageCounter.Add(int(c))
-		mp.MessageCounter.Reset()
-		return
-	})
-
-	var pidUsageLock sync.Mutex
-	mp.CPU = NewMonitorHistory(Percent, Average, func() float64 {
-		pidUsageLock.Lock()
-		defer pidUsageLock.Unlock()
-		sysInfo, _ := pidusage.GetStat(os.Getpid())
-		return float64(sysInfo.CPU)
-	})
-	mp.Memory = NewMonitorHistory(MegaBytes, Average, func() float64 {
-		pidUsageLock.Lock()
-		defer pidUsageLock.Unlock()
-		sysInfo, _ := pidusage.GetStat(os.Getpid())
-		return float64(sysInfo.Memory)
-	})
-
-	// TODO: replace with ts.
-	mp.ClientConns = NewMonitorHistory(Count, Average, func() float64 { return float64(ts.Metrics().ConnectionCount) })
+	mp.Messages = NewMonitorHistory(Count, Cumulative, func() (c float64) { c = float64(mp.MessageCounter.Count()); mp.MessageCounter.Reset(); return })
+	mp.CPU = NewMonitorHistory(Percent, Average, func() float64 { sysInfo, _ := pidusage.GetStat(os.Getpid()); return float64(sysInfo.CPU) })
+	mp.Memory = NewMonitorHistory(MegaBytes, Average, func() float64 { sysInfo, _ := pidusage.GetStat(os.Getpid()); return float64(sysInfo.Memory) })
+	mp.ClientConns = NewMonitorHistory(Count, Average, func() float64 { return float64(ra.ConnectionCount()) })
 
 	if mp.log {
 		go mp.run()
@@ -81,9 +54,9 @@ func (mp *Monitors) run() {
 }
 
 func (mp *Monitors) report() {
-	f, err := os.Create(path.Join(mp.configDir, reportFile))
+	f, err := os.Create(reportFile)
 	if err != nil {
-		log.Errorf("Could not open monitor reporting file: %v", err)
+		log.Println("ERROR: Could not open monitor reporting file: ", err)
 		return
 	}
 	defer f.Close()
@@ -92,7 +65,7 @@ func (mp *Monitors) report() {
 
 	fmt.Fprintf(w, "Uptime: %v\n\n", time.Now().Sub(mp.starttime))
 
-	fmt.Fprintln(w, "messages:")
+	fmt.Fprintln(w, "Messages:")
 	mp.Messages.Report(w)
 
 	fmt.Fprintln(w, "\nClient Connections:")

server/send/server_send_channel.go

@@ -0,0 +1,99 @@
+package send
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"cwtch.im/cwtch/protocol/spam"
+	"errors"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"log"
+)
+
+// CwtchServerSendChannel implements the ChannelHandler interface for a channel of
+// type "im.cwtch.server.send - this implementation only handles server-side logic.
+type CwtchServerSendChannel struct {
+	// Methods of Handler are called for Cwtch events on this channel
+	Handler   CwtchServerSendChannelHandler
+	channel   *channels.Channel
+	spamguard spam.Guard
+}
+
+// CwtchServerSendChannelHandler defines the interface needed to interact with this channel
+type CwtchServerSendChannelHandler interface {
+	HandleGroupMessage(*protocol.GroupMessage)
+}
+
+// Type returns the type string for this channel, e.g. "im.ricochet.Cwtch".
+func (cc *CwtchServerSendChannel) Type() string {
+	return "im.cwtch.server.send"
+}
+
+// Closed is called when the channel is closed for any reason.
+func (cc *CwtchServerSendChannel) Closed(err error) {
+
+}
+
+// OnlyClientCanOpen  - for Cwtch channels any side can open
+func (cc *CwtchServerSendChannel) OnlyClientCanOpen() bool {
+	return true
+}
+
+// Singleton - for Cwtch channels there can only be one instance per direction
+func (cc *CwtchServerSendChannel) Singleton() bool {
+	return true
+}
+
+// Bidirectional - for Cwtch channels are not bidrectional
+func (cc *CwtchServerSendChannel) Bidirectional() bool {
+	return false
+}
+
+// RequiresAuthentication - Cwtch channels require hidden service auth
+func (cc *CwtchServerSendChannel) RequiresAuthentication() string {
+	return "none"
+}
+
+// OpenInbound is the first method called for an inbound channel request.
+// If an error is returned, the channel is rejected. If a RawMessage is
+// returned, it will be sent as the ChannelResult message.
+func (cc *CwtchServerSendChannel) OpenInbound(channel *channels.Channel, raw *Protocol_Data_Control.OpenChannel) ([]byte, error) {
+	cc.channel = channel
+	cc.spamguard.Difficulty = 2
+	return cc.spamguard.GenerateChallenge(channel.ID), nil
+}
+
+// OpenOutbound is the first method called for an outbound channel request.
+// If an error is returned, the channel is not opened. If a RawMessage is
+// returned, it will be sent as the OpenChannel message.
+func (cc *CwtchServerSendChannel) OpenOutbound(channel *channels.Channel) ([]byte, error) {
+	return nil, errors.New("server does not open send channel")
+}
+
+// OpenOutboundResult is called when a response is received for an
+// outbound OpenChannel request. If `err` is non-nil, the channel was
+// rejected and Closed will be called immediately afterwards. `raw`
+// contains the raw protocol message including any extension data.
+func (cc *CwtchServerSendChannel) OpenOutboundResult(err error, crm *Protocol_Data_Control.ChannelResult) {
+	// NOTE: Should never be called
+}
+
+// Packet is called for each raw packet received on this channel.
+func (cc *CwtchServerSendChannel) Packet(data []byte) {
+	csp := &protocol.CwtchServerPacket{}
+	err := proto.Unmarshal(data, csp)
+	if err == nil {
+		if csp.GetGroupMessage() != nil {
+			gm := csp.GetGroupMessage()
+			ok := cc.spamguard.ValidateChallenge(gm.GetCiphertext(), gm.GetSpamguard())
+			if ok {
+				cc.Handler.HandleGroupMessage(gm)
+			} else {
+				log.Printf("[ERROR] Failed to validate spamguard %v\n", gm)
+			}
+		}
+	} else {
+		log.Printf("[ERROR] Failed to decode packet on SEND channel %v\n", err)
+	}
+	cc.channel.CloseChannel()
+}

server/send/server_send_channel_test.go

@@ -0,0 +1,174 @@
+package send
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"cwtch.im/cwtch/protocol/spam"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"git.openprivacy.ca/openprivacy/libricochet-go/wire/control"
+	"github.com/golang/protobuf/proto"
+	"testing"
+)
+
+type TestHandler struct {
+	Received bool
+}
+
+func (th *TestHandler) HandleGroupMessage(m *protocol.GroupMessage) {
+	th.Received = true
+}
+
+func TestServerSendChannelAttributes(t *testing.T) {
+	cssc := new(CwtchServerSendChannel)
+	if cssc.Type() != "im.cwtch.server.send" {
+		t.Errorf("cwtch channel type is incorrect %v", cssc.Type())
+	}
+
+	if !cssc.OnlyClientCanOpen() {
+		t.Errorf("only clients should be able to open im.cwtch.server.send channel")
+	}
+
+	if cssc.Bidirectional() {
+		t.Errorf("im.cwtch.server.send should not be bidirectional")
+	}
+
+	if !cssc.Singleton() {
+		t.Errorf("im.cwtch.server.send should be a Singleton")
+	}
+
+	if cssc.RequiresAuthentication() != "none" {
+		t.Errorf("cwtch channel required auth is incorrect %v", cssc.RequiresAuthentication())
+	}
+
+}
+func TestServerSendChannelOpenOutbound(t *testing.T) {
+	cssc := new(CwtchServerSendChannel)
+	channel := new(channels.Channel)
+	_, err := cssc.OpenOutbound(channel)
+	if err == nil {
+		t.Errorf("server implementation of im.cwtch.server.send should never open an outbound channel")
+	}
+}
+
+func TestServerSendChannel(t *testing.T) {
+	cssc := new(CwtchServerSendChannel)
+	th := new(TestHandler)
+	cssc.Handler = th
+	channel := new(channels.Channel)
+	channel.ID = 1
+	closed := false
+	channel.CloseChannel = func() {
+		closed = true
+	}
+
+	oc := &Protocol_Data_Control.OpenChannel{
+		ChannelIdentifier: proto.Int32(1),
+		ChannelType:       proto.String(cssc.Type()),
+	}
+
+	resp, err := cssc.OpenInbound(channel, oc)
+	if err != nil {
+		t.Errorf("OpenInbound for im.cwtch.server.send should have succeeded, instead: %v", err)
+	}
+
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(resp[:], control)
+
+	if control.GetChannelResult() != nil {
+
+		var spamguard spam.Guard
+		spamguard.Difficulty = 2
+
+		ce, _ := proto.GetExtension(control.GetChannelResult(), protocol.E_ServerNonce)
+		challenge := ce.([]byte)[:]
+
+		sgsolve := spamguard.SolveChallenge(challenge, []byte("Hello"))
+		//t.Logf("Solved: %x",  sgsolve)
+
+		gm := &protocol.GroupMessage{
+			Ciphertext: []byte("Hello"),
+			Signature:  []byte{},
+			Spamguard:  sgsolve,
+		}
+
+		csp := &protocol.CwtchServerPacket{
+			GroupMessage: gm,
+		}
+		packet, _ := proto.Marshal(csp)
+
+		cssc.Packet(packet)
+
+		if !th.Received {
+			t.Errorf("group message should have been received")
+		}
+
+		if !closed {
+			t.Errorf("im.cwtch.server.send should have been closed after use")
+		}
+	} else {
+		t.Errorf("Expected ChannelResult from im.cwtch.server.send, instead: %v", control)
+	}
+
+}
+
+func TestServerSendChannelNoSpamGuard(t *testing.T) {
+	cssc := new(CwtchServerSendChannel)
+	th := new(TestHandler)
+	th.Received = false
+	cssc.Handler = th
+	channel := new(channels.Channel)
+	channel.ID = 1
+	closed := false
+	channel.CloseChannel = func() {
+		closed = true
+	}
+
+	oc := &Protocol_Data_Control.OpenChannel{
+		ChannelIdentifier: proto.Int32(1),
+		ChannelType:       proto.String(cssc.Type()),
+	}
+
+	resp, err := cssc.OpenInbound(channel, oc)
+	if err != nil {
+		t.Errorf("OpenInbound for im.cwtch.server.send should have succeeded, instead: %v", err)
+	}
+
+	control := new(Protocol_Data_Control.Packet)
+	proto.Unmarshal(resp[:], control)
+
+	if control.GetChannelResult() != nil {
+
+		var spamguard spam.Guard
+		spamguard.Difficulty = 2
+
+		ce, _ := proto.GetExtension(control.GetChannelResult(), protocol.E_ServerNonce)
+		challenge := ce.([]byte)[:]
+
+		sgsolve := spamguard.SolveChallenge(challenge, []byte("4234"))
+		//t.Logf("Solved: %x", sgsolve)
+
+		gm := &protocol.GroupMessage{
+			Ciphertext: []byte("hello"),
+			Signature:  []byte{},
+			Spamguard:  sgsolve,
+		}
+
+		csp := &protocol.CwtchServerPacket{
+			GroupMessage: gm,
+		}
+		packet, _ := proto.Marshal(csp)
+
+		cssc.Packet(packet)
+
+		if th.Received == true {
+			t.Errorf("group message should not have been received")
+		}
+
+		if !closed {
+			t.Errorf("im.cwtch.server.send should have been closed after use")
+		}
+
+	} else {
+		t.Errorf("Expected ChannelResult from im.cwtch.server.send, instead: %v", control)
+	}
+
+}

server/server.go

@@ -1,161 +1,79 @@
 package server
 
 import (
-	"crypto/ed25519"
-	"cwtch.im/cwtch/model"
+	"cwtch.im/cwtch/server/fetch"
+	"cwtch.im/cwtch/server/listen"
 	"cwtch.im/cwtch/server/metrics"
-	"cwtch.im/cwtch/server/storage"
-	"fmt"
-	"git.openprivacy.ca/cwtch.im/tapir"
-	"git.openprivacy.ca/cwtch.im/tapir/applications"
-	tor2 "git.openprivacy.ca/cwtch.im/tapir/networks/tor"
-	"git.openprivacy.ca/cwtch.im/tapir/persistence"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives/privacypass"
-	"git.openprivacy.ca/openprivacy/connectivity"
-	"git.openprivacy.ca/openprivacy/connectivity/tor"
-	"git.openprivacy.ca/openprivacy/log"
-	"path"
-	"sync"
+	"cwtch.im/cwtch/server/send"
+	"cwtch.im/cwtch/storage"
+	"git.openprivacy.ca/openprivacy/libricochet-go/application"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+	"log"
+	"git.openprivacy.ca/openprivacy/libricochet-go/utils"
 )
 
 // Server encapsulates a complete, compliant Cwtch server.
 type Server struct {
-	service              tapir.Service
-	config               Config
-	metricsPack          metrics.Monitors
-	tokenTapirService    tapir.Service
-	tokenServer          *privacypass.TokenServer
-	tokenService         primitives.Identity
-	tokenServicePrivKey  ed25519.PrivateKey
-	tokenServiceStopped  bool
-	onionServiceStopped  bool
-	running              bool
-	existingMessageCount int
-	lock                 sync.RWMutex
-}
-
-// Setup initialized a server from a given configuration
-func (s *Server) Setup(serverConfig Config) {
-	s.config = serverConfig
-	bs := new(persistence.BoltPersistence)
-	bs.Open(path.Join(serverConfig.ConfigDir, "tokens.db"))
-	s.tokenServer = privacypass.NewTokenServerFromStore(&serverConfig.TokenServiceK, bs)
-	log.Infof("Y: %v", s.tokenServer.Y)
-	s.tokenService = s.config.TokenServiceIdentity()
-	s.tokenServicePrivKey = s.config.TokenServerPrivateKey
-}
-
-// Identity returns the main onion identity of the server
-func (s *Server) Identity() primitives.Identity {
-	return s.config.Identity()
+	app         *application.RicochetApplication
+	config      Config
+	metricsPack metrics.Monitors
 }
 
 // Run starts a server with the given privateKey
-func (s *Server) Run(acn connectivity.ACN) error {
-	addressIdentity := tor.GetTorV3Hostname(s.config.PublicKey)
-	identity := primitives.InitializeIdentity("", &s.config.PrivateKey, &s.config.PublicKey)
-	var service tapir.Service
-	service = new(tor2.BaseOnionService)
-	service.Init(acn, s.config.PrivateKey, &identity)
-	s.service = service
-	log.Infof("cwtch server running on cwtch:%s\n", addressIdentity+".onion:")
-	s.metricsPack.Start(service, s.config.ConfigDir, s.config.ServerReporting.LogMetricsToFile)
+// TODO: surface errors
+func (s *Server) Run(serverConfig Config) {
+	s.config = serverConfig
+	cwtchserver := new(application.RicochetApplication)
+	s.metricsPack.Start(cwtchserver, s.config.ServerReporting.LogMetricsToFile)
+
+	l, err := application.SetupOnionV3("127.0.0.1:9051", "tcp4", "", s.config.PrivateKey, utils.GetTorV3Hostname(s.config.PublicKey), 9878)
 
-	ms := new(storage.MessageStore)
-	err := ms.Init(s.config.ConfigDir, s.config.MaxBufferLines, s.metricsPack.MessageCounter)
 	if err != nil {
-		return err
+		log.Fatalf("error setting up onion service: %v", err)
 	}
 
-	// Needed because we only collect metrics on a per-session basis
-	// TODO fix metrics so they persist across sessions?
-	s.existingMessageCount = len(ms.FetchMessages())
-
-	s.tokenTapirService = new(tor2.BaseOnionService)
-	s.tokenTapirService.Init(acn, s.tokenServicePrivKey, &s.tokenService)
-	tokenApplication := new(applications.TokenApplication)
-	tokenApplication.TokenService = s.tokenServer
-	powTokenApp := new(applications.ApplicationChain).
-		ChainApplication(new(applications.ProofOfWorkApplication), applications.SuccessfulProofOfWorkCapability).
-		ChainApplication(tokenApplication, applications.HasTokensCapability)
-	go func() {
-		s.tokenTapirService.Listen(powTokenApp)
-		s.tokenServiceStopped = true
-	}()
-	go func() {
-		s.service.Listen(NewTokenBoardServer(ms, s.tokenServer))
-		s.onionServiceStopped = true
-	}()
-
-	s.lock.Lock()
-	s.running = true
-	s.lock.Unlock()
-	return nil
-}
-
-// KeyBundle provides the signed keybundle of the server
-func (s *Server) KeyBundle() *model.KeyBundle {
-	kb := model.NewKeyBundle()
-	identity := s.config.Identity()
-	kb.Keys[model.KeyTypeServerOnion] = model.Key(identity.Hostname())
-	kb.Keys[model.KeyTypeTokenOnion] = model.Key(s.tokenService.Hostname())
-	kb.Keys[model.KeyTypePrivacyPass] = model.Key(s.tokenServer.Y.String())
-	kb.Sign(identity)
-	return kb
-}
-
-// CheckStatus returns true if the server is running and/or an error if any part of the server needs to be restarted.
-func (s *Server) CheckStatus() (bool, error) {
-	s.lock.RLock()
-	defer s.lock.RUnlock()
-	if s.onionServiceStopped == true || s.tokenServiceStopped == true {
-		return s.running, fmt.Errorf("one of more server components are down: onion:%v token service: %v", s.onionServiceStopped, s.tokenServiceStopped)
+	af := application.ApplicationInstanceFactory{}
+	af.Init()
+	ms := new(storage.MessageStore)
+	err = ms.Init(".", s.config.MaxBufferLines, s.metricsPack.MessageCounter)
+	if err != nil {
+		log.Fatal(err)
 	}
-	return s.running, nil
+	af.AddHandler("im.cwtch.server.listen", func(rai *application.ApplicationInstance) func() channels.Handler {
+		return func() channels.Handler {
+			cslc := new(listen.CwtchServerListenChannel)
+			return cslc
+		}
+	})
+
+	af.AddHandler("im.cwtch.server.fetch", func(rai *application.ApplicationInstance) func() channels.Handler {
+		si := new(Instance)
+		si.Init(rai, cwtchserver, ms)
+		return func() channels.Handler {
+			cssc := new(fetch.CwtchServerFetchChannel)
+			cssc.Handler = si
+			return cssc
+		}
+	})
+
+	af.AddHandler("im.cwtch.server.send", func(rai *application.ApplicationInstance) func() channels.Handler {
+		si := new(Instance)
+		si.Init(rai, cwtchserver, ms)
+		return func() channels.Handler {
+			cssc := new(send.CwtchServerSendChannel)
+			cssc.Handler = si
+			return cssc
+		}
+	})
+
+	cwtchserver.InitV3("cwtch server for "+l.Addr().String(), s.config.Identity(), af, new(application.AcceptAllContactManager))
+	log.Printf("cwtch server running on cwtch:%s", l.Addr().String())
+	s.app = cwtchserver
+	s.app.Run(l)
 }
 
 // Shutdown kills the app closing all connections and freeing all goroutines
 func (s *Server) Shutdown() {
-	s.lock.Lock()
-	defer s.lock.Unlock()
-	s.service.Shutdown()
-	s.tokenTapirService.Shutdown()
+	s.app.Shutdown()
 	s.metricsPack.Stop()
-	s.running = true
-
-}
-
-// Statistics is an encapsulation of information about the server that an operator might want to know at a glance.
-type Statistics struct {
-	TotalMessages int
-}
-
-// GetStatistics is a stub method for providing some high level information about
-// the server operation to bundling applications (e.g. the UI)
-func (s *Server) GetStatistics() Statistics {
-	// TODO Statistics from Metrics is very awkward. Metrics needs an overhaul to make safe
-	total := s.existingMessageCount
-	if s.metricsPack.TotalMessageCounter != nil {
-		total += s.metricsPack.TotalMessageCounter.Count()
-	}
-
-	return Statistics{
-		TotalMessages: total,
-	}
-}
-
-// ConfigureAutostart sets whether this server should autostart (in the Cwtch UI/bundling application)
-func (s *Server) ConfigureAutostart(autostart bool) {
-	s.config.AutoStart = autostart
-	s.config.Save(s.config.ConfigDir, s.config.FilePath)
-}
-
-// Close shuts down the cwtch server in a safe way.
-func (s *Server) Close() {
-	log.Infof("Shutting down server")
-	s.lock.Lock()
-	defer s.lock.Unlock()
-	log.Infof("Closing Token Server Database...")
-	s.tokenServer.Close()
 }

server/serverConfig.go

@@ -3,12 +3,10 @@ package server
 import (
 	"crypto/rand"
 	"encoding/json"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives"
-	"git.openprivacy.ca/openprivacy/log"
-	"github.com/gtank/ristretto255"
+	"git.openprivacy.ca/openprivacy/libricochet-go/identity"
 	"golang.org/x/crypto/ed25519"
 	"io/ioutil"
-	"path"
+	"log"
 )
 
 // Reporting is a struct for storing a the config a server needs to be a peer, and connect to a group to report
@@ -20,79 +18,42 @@ type Reporting struct {
 
 // Config is a struct for storing basic server configuration
 type Config struct {
-	ConfigDir      string `json:"-"`
-	FilePath       string `json:"-"`
-	MaxBufferLines int    `json:"maxBufferLines"`
-
-	PublicKey  ed25519.PublicKey  `json:"publicKey"`
-	PrivateKey ed25519.PrivateKey `json:"privateKey"`
-
-	TokenServerPublicKey  ed25519.PublicKey  `json:"tokenServerPublicKey"`
-	TokenServerPrivateKey ed25519.PrivateKey `json:"tokenServerPrivateKey"`
-
-	TokenServiceK ristretto255.Scalar `json:"tokenServiceK"`
-
-	ServerReporting Reporting `json:"serverReporting"`
-	AutoStart       bool      `json:"autostart"`
+	MaxBufferLines  int                `json:"maxBufferLines"`
+	PublicKey       ed25519.PublicKey  `json:"publicKey"`
+	PrivateKey      ed25519.PrivateKey `json:"privateKey"`
+	ServerReporting Reporting          `json:"serverReporting"`
 }
 
-// Identity returns an encapsulation of the servers keys
-func (config *Config) Identity() primitives.Identity {
-	return primitives.InitializeIdentity("", &config.PrivateKey, &config.PublicKey)
-}
-
-// TokenServiceIdentity returns an encapsulation of the servers token server (experimental)
-func (config *Config) TokenServiceIdentity() primitives.Identity {
-	return primitives.InitializeIdentity("", &config.TokenServerPrivateKey, &config.TokenServerPublicKey)
+// Identity returns an encapsulation of the servers keys for running ricochet
+func (config *Config) Identity() identity.Identity {
+	return identity.InitializeV3("", &config.PrivateKey, &config.PublicKey)
 }
 
 // Save dumps the latest version of the config to a json file given by filename
-func (config *Config) Save(dir, filename string) {
-	log.Infof("Saving config to %s\n", path.Join(dir, filename))
+func (config *Config) Save(filename string) {
 	bytes, _ := json.MarshalIndent(config, "", "\t")
-	ioutil.WriteFile(path.Join(dir, filename), bytes, 0600)
+	ioutil.WriteFile(filename, bytes, 0600)
 }
 
 // LoadConfig loads a Config from a json file specified by filename
-func LoadConfig(configDir, filename string) Config {
-	log.Infof("Loading config from %s\n", path.Join(configDir, filename))
+func LoadConfig(filename string) Config {
 	config := Config{}
-
-	id, pk := primitives.InitializeEphemeralIdentity()
-	tid, tpk := primitives.InitializeEphemeralIdentity()
-	config.PrivateKey = pk
-	config.PublicKey = id.PublicKey()
-	config.TokenServerPrivateKey = tpk
-	config.TokenServerPublicKey = tid.PublicKey()
 	config.MaxBufferLines = 100000
-	config.ServerReporting = Reporting{
-		LogMetricsToFile:    true,
-		ReportingGroupID:    "",
-		ReportingServerAddr: "",
-	}
-	config.AutoStart = false
-	config.ConfigDir = configDir
-	config.FilePath = filename
-
-	k := new(ristretto255.Scalar)
-	b := make([]byte, 64)
-	_, err := rand.Read(b)
-	if err != nil {
-		// unable to generate secure random numbers
-		panic("unable to generate secure random numbers")
-	}
-	k.FromUniformBytes(b)
-	config.TokenServiceK = *k
-
-	raw, err := ioutil.ReadFile(path.Join(configDir, filename))
+	config.ServerReporting.LogMetricsToFile = false
+	raw, err := ioutil.ReadFile(filename)
 	if err == nil {
 		err = json.Unmarshal(raw, &config)
 
 		if err != nil {
-			log.Errorf("reading config: %v", err)
+			log.Println("Error reading config: ", err)
 		}
 	}
+
+	if config.PrivateKey == nil {
+		config.PublicKey, config.PrivateKey, _ = ed25519.GenerateKey(rand.Reader)
+	}
+
 	// Always save (first time generation, new version with new variables populated)
-	config.Save(configDir, filename)
+	config.Save(filename)
 	return config
 }

server/server_instance.go

@@ -0,0 +1,45 @@
+package server
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"cwtch.im/cwtch/server/listen"
+	"cwtch.im/cwtch/storage"
+	"git.openprivacy.ca/openprivacy/libricochet-go/application"
+	"git.openprivacy.ca/openprivacy/libricochet-go/channels"
+)
+
+// Instance encapsulates the Ricochet application.
+type Instance struct {
+	rai *application.ApplicationInstance
+	ra  *application.RicochetApplication
+	msi storage.MessageStoreInterface
+}
+
+// Init sets up a Server Instance
+func (si *Instance) Init(rai *application.ApplicationInstance, ra *application.RicochetApplication, msi storage.MessageStoreInterface) {
+	si.rai = rai
+	si.ra = ra
+	si.msi = msi
+}
+
+// HandleFetchRequest returns a list of all messages in the servers buffer
+func (si *Instance) HandleFetchRequest() []*protocol.GroupMessage {
+	return si.msi.FetchMessages()
+}
+
+// HandleGroupMessage takes in a group message and distributes it to all listening peers
+func (si *Instance) HandleGroupMessage(gm *protocol.GroupMessage) {
+	si.msi.AddMessage(*gm)
+	go si.ra.Broadcast(func(rai *application.ApplicationInstance) {
+		rai.Connection.Do(func() error {
+			channel := rai.Connection.Channel("im.cwtch.server.listen", channels.Inbound)
+			if channel != nil {
+				cslc, ok := channel.Handler.(*listen.CwtchServerListenChannel)
+				if ok {
+					cslc.SendGroupMessage(gm)
+				}
+			}
+			return nil
+		})
+	})
+}

server/server_instance_test.go

@@ -0,0 +1,37 @@
+package server
+
+import (
+	"cwtch.im/cwtch/protocol"
+	"cwtch.im/cwtch/server/metrics"
+	"cwtch.im/cwtch/storage"
+	"git.openprivacy.ca/openprivacy/libricochet-go/application"
+	"os"
+	"testing"
+	"time"
+)
+
+func TestServerInstance(t *testing.T) {
+	si := new(Instance)
+	ai := new(application.ApplicationInstance)
+	ra := new(application.RicochetApplication)
+	msi := new(storage.MessageStore)
+	os.RemoveAll("messages")
+	msi.Init(".", 5, metrics.NewCounter())
+	gm := protocol.GroupMessage{
+		Ciphertext: []byte("Hello this is a fairly average length message that we are writing here."),
+		Spamguard:  []byte{},
+	}
+
+	si.Init(ai, ra, msi)
+	msi.AddMessage(gm)
+	res := si.HandleFetchRequest()
+
+	if len(res) != 1 {
+		t.Errorf("Expected 1 Group Messages Instead got %v", res)
+	}
+
+	//	ra.HandleApplicationInstance(ai)
+	si.HandleGroupMessage(&gm)
+
+	time.Sleep(time.Second * 2)
+}

server/server_tokenboard.go

@@ -1,118 +0,0 @@
-package server
-
-import (
-	"cwtch.im/cwtch/protocol/groups"
-	"cwtch.im/cwtch/server/storage"
-	"encoding/json"
-	"git.openprivacy.ca/cwtch.im/tapir"
-	"git.openprivacy.ca/cwtch.im/tapir/applications"
-	"git.openprivacy.ca/cwtch.im/tapir/primitives/privacypass"
-	"git.openprivacy.ca/openprivacy/log"
-)
-
-// NewTokenBoardServer generates new Server for Token Board
-func NewTokenBoardServer(store storage.MessageStoreInterface, tokenService *privacypass.TokenServer) tapir.Application {
-	tba := new(TokenboardServer)
-	tba.TokenService = tokenService
-	tba.LegacyMessageStore = store
-	return tba
-}
-
-// TokenboardServer defines the token board server
-type TokenboardServer struct {
-	applications.AuthApp
-	connection         tapir.Connection
-	TokenService       *privacypass.TokenServer
-	LegacyMessageStore storage.MessageStoreInterface
-}
-
-// NewInstance creates a new TokenBoardApp
-func (ta *TokenboardServer) NewInstance() tapir.Application {
-	tba := new(TokenboardServer)
-	tba.TokenService = ta.TokenService
-	tba.LegacyMessageStore = ta.LegacyMessageStore
-	return tba
-}
-
-// Init initializes the cryptographic TokenBoardApp
-func (ta *TokenboardServer) Init(connection tapir.Connection) {
-	ta.AuthApp.Init(connection)
-	if connection.HasCapability(applications.AuthCapability) {
-		ta.connection = connection
-		go ta.Listen()
-	} else {
-		connection.Close()
-	}
-}
-
-// Listen processes the messages for this application
-func (ta *TokenboardServer) Listen() {
-	for {
-		data := ta.connection.Expect()
-		if len(data) == 0 {
-			log.Debugf("Server Closing Connection")
-			ta.connection.Close()
-			return // connection is closed
-		}
-
-		var message groups.Message
-		if err := json.Unmarshal(data, &message); err != nil {
-			log.Debugf("Server Closing Connection Because of Malformed Client Packet %v", err)
-			ta.connection.Close()
-			return // connection is closed
-		}
-
-		switch message.MessageType {
-		case groups.PostRequestMessage:
-			if message.PostRequest != nil {
-				postrequest := *message.PostRequest
-				log.Debugf("Received a Post Message Request: %v", ta.connection.Hostname())
-				ta.postMessageRequest(postrequest)
-			} else {
-				log.Debugf("Server Closing Connection Because of PostRequestMessage Client Packet")
-				ta.connection.Close()
-				return // connection is closed
-			}
-		case groups.ReplayRequestMessage:
-			if message.ReplayRequest != nil {
-				log.Debugf("Received Replay Request %v", message.ReplayRequest)
-				messages := ta.LegacyMessageStore.FetchMessages()
-				response, _ := json.Marshal(groups.Message{MessageType: groups.ReplayResultMessage, ReplayResult: &groups.ReplayResult{NumMessages: len(messages)}})
-				log.Debugf("Sending Replay Response %v", groups.ReplayResult{NumMessages: len(messages)})
-				ta.connection.Send(response)
-				for _, message := range messages {
-					data, _ = json.Marshal(message)
-					ta.connection.Send(data)
-				}
-				// Set sync and then send any new messages that might have happened while we were syncing
-				ta.connection.SetCapability(groups.CwtchServerSyncedCapability)
-				newMessages := ta.LegacyMessageStore.FetchMessages()
-				if len(newMessages) > len(messages) {
-					for _, message := range newMessages[len(messages):] {
-						data, _ = json.Marshal(groups.Message{MessageType: groups.NewMessageMessage, NewMessage: &groups.NewMessage{EGM: *message}})
-						ta.connection.Send(data)
-					}
-				}
-			} else {
-				log.Debugf("Server Closing Connection Because of Malformed ReplayRequestMessage Packet")
-				ta.connection.Close()
-				return // connection is closed
-			}
-		}
-	}
-}
-
-func (ta *TokenboardServer) postMessageRequest(pr groups.PostRequest) {
-	if err := ta.TokenService.SpendToken(pr.Token, append(pr.EGM.ToBytes(), ta.connection.ID().Hostname()...)); err == nil {
-		log.Debugf("Token is valid")
-		ta.LegacyMessageStore.AddMessage(pr.EGM)
-		data, _ := json.Marshal(groups.Message{MessageType: groups.PostResultMessage, PostResult: &groups.PostResult{Success: true}})
-		ta.connection.Send(data)
-		data, _ = json.Marshal(groups.Message{MessageType: groups.NewMessageMessage, NewMessage: &groups.NewMessage{EGM: pr.EGM}})
-		ta.connection.Broadcast(data, groups.CwtchServerSyncedCapability)
-	} else {
-		log.Debugf("Attempt to spend an invalid token: %v", err)
-		data, _ := json.Marshal(groups.Message{MessageType: groups.PostResultMessage, PostResult: &groups.PostResult{Success: false}})
-		ta.connection.Send(data)
-	}
-}

storage/message_store.go

@@ -2,13 +2,12 @@ package storage
 
 import (
 	"bufio"
-	"cwtch.im/cwtch/protocol/groups"
+	"cwtch.im/cwtch/protocol"
 	"cwtch.im/cwtch/server/metrics"
 	"encoding/json"
 	"fmt"
-	"git.openprivacy.ca/openprivacy/log"
+	"log"
 	"os"
-	"path"
 	"sync"
 )
 
@@ -20,8 +19,8 @@ const (
 
 // MessageStoreInterface defines an interface to interact with a store of cwtch messages.
 type MessageStoreInterface interface {
-	AddMessage(groups.EncryptedGroupMessage)
-	FetchMessages() []*groups.EncryptedGroupMessage
+	AddMessage(protocol.GroupMessage)
+	FetchMessages() []*protocol.GroupMessage
 }
 
 // MessageStore is a file-backed implementation of MessageStoreInterface
@@ -30,7 +29,7 @@ type MessageStore struct {
 	filePos        int
 	storeDirectory string
 	lock           sync.Mutex
-	messages       []*groups.EncryptedGroupMessage
+	messages       []*protocol.GroupMessage
 	messageCounter metrics.Counter
 	maxBufferLines int
 	bufferPos      int
@@ -45,7 +44,7 @@ func (ms *MessageStore) Close() {
 	ms.lock.Unlock()
 }
 
-func (ms *MessageStore) updateBuffer(gm *groups.EncryptedGroupMessage) {
+func (ms *MessageStore) updateBuffer(gm *protocol.GroupMessage) {
 	ms.messages[ms.bufferPos] = gm
 	ms.bufferPos++
 	if ms.bufferPos == ms.maxBufferLines {
@@ -58,10 +57,10 @@ func (ms *MessageStore) initAndLoadFiles() error {
 	ms.activeLogFile = nil
 	for i := fileStorePartitions - 1; i >= 0; i-- {
 		ms.filePos = 0
-		filename := path.Join(ms.storeDirectory, fmt.Sprintf("%s.%d", fileStoreFilename, i))
+		filename := fmt.Sprintf("%s%s.%d", ms.storeDirectory, fileStoreFilename, i)
 		f, err := os.OpenFile(filename, os.O_CREATE|os.O_APPEND|os.O_RDWR, 0600)
 		if err != nil {
-			log.Errorf("MessageStore could not open: %v: %v", filename, err)
+			log.Printf("Error: MessageStore could not open: %v: %v", filename, err)
 			continue
 		}
 		ms.activeLogFile = f
@@ -70,7 +69,7 @@ func (ms *MessageStore) initAndLoadFiles() error {
 		for scanner.Scan() {
 			gms := scanner.Text()
 			ms.filePos++
-			gm := &groups.EncryptedGroupMessage{}
+			gm := &protocol.GroupMessage{}
 			err := json.Unmarshal([]byte(gms), gm)
 			if err == nil {
 				ms.updateBuffer(gm)
@@ -83,10 +82,10 @@ func (ms *MessageStore) initAndLoadFiles() error {
 	return nil
 }
 
-func (ms *MessageStore) updateFile(gm *groups.EncryptedGroupMessage) {
+func (ms *MessageStore) updateFile(gm *protocol.GroupMessage) {
 	s, err := json.Marshal(gm)
 	if err != nil {
-		log.Errorf("Failed to unmarshal group message %v\n", err)
+		log.Printf("[ERROR] Failed to unmarshal group message %v\n", err)
 	}
 	fmt.Fprintf(ms.activeLogFile, "%s\n", s)
 	ms.filePos++
@@ -97,15 +96,15 @@ func (ms *MessageStore) updateFile(gm *groups.EncryptedGroupMessage) {
 
 func (ms *MessageStore) rotateFileStore() {
 	ms.activeLogFile.Close()
-	os.Remove(path.Join(ms.storeDirectory, fmt.Sprintf("%s.%d", fileStoreFilename, fileStorePartitions-1)))
+	os.Remove(fmt.Sprintf("%s%s.%d", ms.storeDirectory, fileStoreFilename, fileStorePartitions-1))
 
 	for i := fileStorePartitions - 2; i >= 0; i-- {
-		os.Rename(path.Join(ms.storeDirectory, fmt.Sprintf("%s.%d", fileStoreFilename, i)), path.Join(ms.storeDirectory, fmt.Sprintf("%s.%d", fileStoreFilename, i+1)))
+		os.Rename(fmt.Sprintf("%s%s.%d", ms.storeDirectory, fileStoreFilename, i), fmt.Sprintf("%s%s.%d", ms.storeDirectory, fileStoreFilename, i+1))
 	}
 
-	f, err := os.OpenFile(path.Join(ms.storeDirectory, fmt.Sprintf("%s.%d", fileStoreFilename, 0)), os.O_CREATE|os.O_APPEND|os.O_RDWR, 0600)
+	f, err := os.OpenFile(fmt.Sprintf("%s%s.%d", ms.storeDirectory, fileStoreFilename, 0), os.O_CREATE|os.O_APPEND|os.O_RDWR, 0600)
 	if err != nil {
-		log.Errorf("Could not open new message store file in: %s", ms.storeDirectory)
+		log.Printf("ERROR: Could not open new message store file in: %s", ms.storeDirectory)
 	}
 	ms.filePos = 0
 	ms.activeLogFile = f
@@ -113,12 +112,12 @@ func (ms *MessageStore) rotateFileStore() {
 
 // Init sets up a MessageStore of size maxBufferLines (# of messages) backed by filename
 func (ms *MessageStore) Init(appDirectory string, maxBufferLines int, messageCounter metrics.Counter) error {
-	ms.storeDirectory = path.Join(appDirectory, directory)
+	ms.storeDirectory = appDirectory + "/" + directory + "/"
 	os.Mkdir(ms.storeDirectory, 0700)
 
 	ms.bufferPos = 0
 	ms.maxBufferLines = maxBufferLines
-	ms.messages = make([]*groups.EncryptedGroupMessage, maxBufferLines)
+	ms.messages = make([]*protocol.GroupMessage, maxBufferLines)
 	ms.bufferRotated = false
 	ms.messageCounter = messageCounter
 
@@ -127,13 +126,13 @@ func (ms *MessageStore) Init(appDirectory string, maxBufferLines int, messageCou
 }
 
 // FetchMessages returns all messages from the backing file.
-func (ms *MessageStore) FetchMessages() (messages []*groups.EncryptedGroupMessage) {
+func (ms *MessageStore) FetchMessages() (messages []*protocol.GroupMessage) {
 	ms.lock.Lock()
 	if !ms.bufferRotated {
-		messages = make([]*groups.EncryptedGroupMessage, ms.bufferPos)
+		messages = make([]*protocol.GroupMessage, ms.bufferPos)
 		copy(messages, ms.messages[0:ms.bufferPos])
 	} else {
-		messages = make([]*groups.EncryptedGroupMessage, ms.maxBufferLines)
+		messages = make([]*protocol.GroupMessage, ms.maxBufferLines)
 		copy(messages, ms.messages[ms.bufferPos:ms.maxBufferLines])
 		copy(messages[ms.bufferPos:], ms.messages[0:ms.bufferPos])
 	}
@@ -142,7 +141,7 @@ func (ms *MessageStore) FetchMessages() (messages []*groups.EncryptedGroupMessag
 }
 
 // AddMessage adds a GroupMessage to the store
-func (ms *MessageStore) AddMessage(gm groups.EncryptedGroupMessage) {
+func (ms *MessageStore) AddMessage(gm protocol.GroupMessage) {
 	ms.messageCounter.Add(1)
 	ms.lock.Lock()
 	ms.updateBuffer(&gm)

storage/message_store_test.go

@@ -1,7 +1,7 @@
 package storage
 
 import (
-	"cwtch.im/cwtch/protocol/groups"
+	"cwtch.im/cwtch/protocol"
 	"cwtch.im/cwtch/server/metrics"
 	"os"
 	"strconv"
@@ -14,8 +14,9 @@ func TestMessageStore(t *testing.T) {
 	counter := metrics.NewCounter()
 	ms.Init("./", 1000, counter)
 	for i := 0; i < 499; i++ {
-		gm := groups.EncryptedGroupMessage{
+		gm := protocol.GroupMessage{
 			Ciphertext: []byte("Hello this is a fairly average length message that we are writing here. " + strconv.Itoa(i)),
+			Spamguard:  []byte{},
 		}
 		ms.AddMessage(gm)
 	}
@@ -32,8 +33,9 @@ func TestMessageStore(t *testing.T) {
 	counter.Reset()
 
 	for i := 0; i < 1000; i++ {
-		gm := groups.EncryptedGroupMessage{
+		gm := protocol.GroupMessage{
 			Ciphertext: []byte("Hello this is a fairly average length message that we are writing here. " + strconv.Itoa(i)),
+			Spamguard:  []byte{},
 		}
 		ms.AddMessage(gm)
 	}

storage/profile_store.go

@@ -1,93 +1 @@
 package storage
-
-import (
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/model"
-	"cwtch.im/cwtch/storage/v0"
-	"cwtch.im/cwtch/storage/v1"
-	"git.openprivacy.ca/openprivacy/log"
-	"io/ioutil"
-	"path"
-	"strconv"
-)
-
-const profileFilename = "profile"
-const versionFile = "VERSION"
-const currentVersion = 1
-
-// ProfileStore is an interface to managing the storage of Cwtch Profiles
-type ProfileStore interface {
-	Shutdown()
-	Delete()
-	GetProfileCopy(timeline bool) *model.Profile
-	GetNewPeerMessage() *event.Event
-	GetStatusMessages() []*event.Event
-}
-
-// CreateProfileWriterStore creates a profile store backed by a filestore listening for events and saving them
-// directory should be $appDir/profiles/$rand
-func CreateProfileWriterStore(eventManager event.Manager, directory, password string, profile *model.Profile) ProfileStore {
-	return v1.CreateProfileWriterStore(eventManager, directory, password, profile)
-}
-
-// LoadProfileWriterStore loads a profile store from filestore listening for events and saving them
-// directory should be $appDir/profiles/$rand
-func LoadProfileWriterStore(eventManager event.Manager, directory, password string) (ProfileStore, error) {
-	versionCheckUpgrade(directory, password)
-
-	return v1.LoadProfileWriterStore(eventManager, directory, password)
-}
-
-// ReadProfile reads a profile from storage and returns the profile
-// Should only be called for cache refresh of the profile after a ProfileWriterStore has opened
-//   (and upgraded) the store, and thus supplied the key/salt
-func ReadProfile(directory string, key [32]byte, salt [128]byte) (*model.Profile, error) {
-	return v1.ReadProfile(directory, key, salt)
-}
-
-// NewProfile creates a new profile for use in the profile store.
-func NewProfile(name string) *model.Profile {
-	profile := model.GenerateNewProfile(name)
-	return profile
-}
-
-// ********* Versioning and upgrade **********
-
-func detectVersion(directory string) int {
-	vnumberStr, err := ioutil.ReadFile(path.Join(directory, versionFile))
-	if err != nil {
-		return 0
-	}
-	vnumber, err := strconv.Atoi(string(vnumberStr))
-	if err != nil {
-		log.Errorf("Could not parse VERSION file contents: '%v' - %v\n", vnumber, err)
-		return -1
-	}
-	return vnumber
-}
-
-func upgradeV0ToV1(directory, password string) error {
-	log.Debugln("Attempting storage v0 to v1: Reading v0 profile...")
-	profile, err := v0.ReadProfile(directory, password)
-	if err != nil {
-		return err
-	}
-
-	log.Debugln("Attempting storage v0 to v1: Writing v1 profile...")
-	return v1.UpgradeV0Profile(profile, directory, password)
-}
-
-func versionCheckUpgrade(directory, password string) {
-	version := detectVersion(directory)
-	log.Debugf("versionCheck: %v\n", version)
-	if version == -1 {
-		return
-	}
-	if version == 0 {
-		err := upgradeV0ToV1(directory, password)
-		if err != nil {
-			return
-		}
-		//version = 1
-	}
-}

storage/profile_store_test.go

@@ -1,76 +0,0 @@
-// Known race issue with event bus channel closure
-
-package storage
-
-import (
-	"cwtch.im/cwtch/event"
-	"cwtch.im/cwtch/model"
-	"cwtch.im/cwtch/storage/v0"
-	"fmt"
-	"git.openprivacy.ca/openprivacy/log"
-	"os"
-	"testing"
-	"time"
-)
-
-const testingDir = "./testing"
-const filenameBase = "testStream"
-const password = "asdfqwer"
-const line1 = "Hello from storage!"
-const testProfileName = "Alice"
-const testKey = "key"
-const testVal = "value"
-const testInitialMessage = "howdy"
-const testMessage = "Hello from storage"
-
-func TestProfileStoreUpgradeV0toV1(t *testing.T) {
-	log.SetLevel(log.LevelDebug)
-	os.RemoveAll(testingDir)
-	eventBus := event.NewEventManager()
-
-	queue := event.NewQueue()
-	eventBus.Subscribe(event.ChangePasswordSuccess, queue)
-
-	fmt.Println("Creating and initializing v0 profile and store...")
-	profile := NewProfile(testProfileName)
-	profile.AddContact("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd", &model.PublicProfile{Attributes: map[string]string{string(model.KeyTypeServerOnion): "2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd"}})
-
-	ps1 := v0.NewProfileWriterStore(eventBus, testingDir, password, profile)
-
-	groupid, invite, err := profile.StartGroup("2c3kmoobnyghj2zw6pwv7d57yzld753auo3ugauezzpvfak3ahc4bdyd")
-	if err != nil {
-		t.Errorf("Creating group: %v\n", err)
-	}
-	if err != nil {
-		t.Errorf("Creating group invite: %v\n", err)
-	}
-
-	ps1.AddGroup(invite)
-
-	fmt.Println("Sending 200 messages...")
-
-	for i := 0; i < 200; i++ {
-		ps1.AddGroupMessage(groupid, time.Now().Format(time.RFC3339Nano), time.Now().Format(time.RFC3339Nano), profile.Onion, testMessage)
-	}
-
-	fmt.Println("Shutdown v0 profile store...")
-	ps1.Shutdown()
-
-	fmt.Println("New v1 Profile store...")
-	ps2, err := LoadProfileWriterStore(eventBus, testingDir, password)
-	if err != nil {
-		t.Errorf("Error createing new profileStore with new password: %v\n", err)
-		return
-	}
-
-	profile2 := ps2.GetProfileCopy(true)
-
-	if profile2.Groups[groupid] == nil {
-		t.Errorf("Failed to load group %v\n", groupid)
-		return
-	}
-
-	if len(profile2.Groups[groupid].Timeline.Messages) != 200 {
-		t.Errorf("Failed to load group's 200 messages, instead got %v\n", len(profile2.Groups[groupid].Timeline.Messages))
-	}
-}

storage/v0/file_enc.go

@@ -1,70 +0,0 @@
-package v0
-
-import (
-	"crypto/rand"
-	"errors"
-	"git.openprivacy.ca/openprivacy/log"
-	"golang.org/x/crypto/nacl/secretbox"
-	"golang.org/x/crypto/pbkdf2"
-	"golang.org/x/crypto/sha3"
-	"io"
-	"io/ioutil"
-	"path"
-)
-
-// createKey derives a key from a password
-func createKey(password string) ([32]byte, [128]byte, error) {
-	var salt [128]byte
-	if _, err := io.ReadFull(rand.Reader, salt[:]); err != nil {
-		log.Errorf("Cannot read from random: %v\n", err)
-		return [32]byte{}, salt, err
-	}
-	dk := pbkdf2.Key([]byte(password), salt[:], 4096, 32, sha3.New512)
-
-	var dkr [32]byte
-	copy(dkr[:], dk)
-	return dkr, salt, nil
-}
-
-//encryptFileData encrypts the cwtchPeer via the specified key.
-func encryptFileData(data []byte, key [32]byte) ([]byte, error) {
-	var nonce [24]byte
-
-	if _, err := io.ReadFull(rand.Reader, nonce[:]); err != nil {
-		log.Errorf("Cannot read from random: %v\n", err)
-		return nil, err
-	}
-
-	encrypted := secretbox.Seal(nonce[:], data, &nonce, &key)
-	return encrypted, nil
-}
-
-//decryptFile decrypts the passed ciphertext into a cwtchPeer via the specified key.
-func decryptFile(ciphertext []byte, key [32]byte) ([]byte, error) {
-	var decryptNonce [24]byte
-	copy(decryptNonce[:], ciphertext[:24])
-	decrypted, ok := secretbox.Open(nil, ciphertext[24:], &decryptNonce, &key)
-	if ok {
-		return decrypted, nil
-	}
-	return nil, errors.New("Failed to decrypt")
-}
-
-// Load instantiates a cwtchPeer from the file store
-func readEncryptedFile(directory, filename, password string) ([]byte, error) {
-	encryptedbytes, err := ioutil.ReadFile(path.Join(directory, filename))
-	if err == nil && len(encryptedbytes) > 128 {
-		var dkr [32]byte
-		//Separate the salt from the encrypted bytes, then generate the derived key
-		salt, encryptedbytes := encryptedbytes[0:128], encryptedbytes[128:]
-		dk := pbkdf2.Key([]byte(password), salt, 4096, 32, sha3.New512)
-		copy(dkr[:], dk)
-
-		data, err := decryptFile(encryptedbytes, dkr)
-		if err == nil {
-			return data, nil
-		}
-		return nil, err
-	}
-	return nil, err
-}

storage/v0/file_store.go

@@ -1,46 +0,0 @@
-package v0
-
-import (
-	"io/ioutil"
-	"path"
-)
-
-// fileStore stores a cwtchPeer in an encrypted file
-type fileStore struct {
-	directory string
-	filename  string
-	password  string
-}
-
-// FileStore is a primitive around storing encrypted files
-type FileStore interface {
-	Read() ([]byte, error)
-	Write(data []byte) error
-}
-
-// NewFileStore instantiates a fileStore given a filename and a password
-func NewFileStore(directory string, filename string, password string) FileStore {
-	filestore := new(fileStore)
-	filestore.password = password
-	filestore.filename = filename
-	filestore.directory = directory
-	return filestore
-}
-
-func (fps *fileStore) Read() ([]byte, error) {
-	return readEncryptedFile(fps.directory, fps.filename, fps.password)
-}
-
-// write serializes a cwtchPeer to a file
-func (fps *fileStore) Write(data []byte) error {
-	key, salt, _ := createKey(fps.password)
-	encryptedbytes, err := encryptFileData(data, key)
-	if err != nil {
-		return err
-	}
-
-	// the salt for the derived key is appended to the front of  the file
-	encryptedbytes = append(salt[:], encryptedbytes...)
-	err = ioutil.WriteFile(path.Join(fps.directory, fps.filename), encryptedbytes, 0600)
-	return err
-}