Merge remote-tracking branch 'origin/master' into p2p-interim-new-storage

functionality/filesharing/filesharing_functionality.go

@@ -2,19 +2,21 @@ package filesharing
 
 import (
 	"crypto/rand"
-	"cwtch.im/cwtch/model"
-	"cwtch.im/cwtch/model/attr"
-	"cwtch.im/cwtch/peer"
-	"cwtch.im/cwtch/protocol/files"
 	"encoding/hex"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"git.openprivacy.ca/openprivacy/log"
 	"io"
 	"math"
 	path "path/filepath"
 	"strconv"
+	"time"
+
+	"cwtch.im/cwtch/model"
+	"cwtch.im/cwtch/model/attr"
+	"cwtch.im/cwtch/peer"
+	"cwtch.im/cwtch/protocol/files"
+	"git.openprivacy.ca/openprivacy/log"
 )
 
 // Functionality groups some common UI triggered functions for contacts...
@@ -45,8 +47,8 @@ func (f *Functionality) DownloadFile(profile peer.CwtchPeer, conversationID int,
 	// Store local.filesharing.filekey.manifest as the location of the manifest
 	profile.SetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fmt.Sprintf("%s.manifest", key), manifestFilePath)
 
-	// Store local.filesharing.filekey as the location of the download
-	profile.SetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, key, downloadFilePath)
+	// Store local.filesharing.filekey.path as the location of the download
+	profile.SetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fmt.Sprintf("%s.path", key), downloadFilePath)
 
 	// Get the value of conversation.filesharing.filekey.manifest.size from `handle`
 	profile.SendScopedZonedGetValToContact(conversationID, attr.ConversationScope, attr.FilesharingZone, fmt.Sprintf("%s.manifest.size", key))
@@ -89,6 +91,9 @@ func (f *Functionality) ShareFile(filepath string, profile peer.CwtchPeer, conve
 	// manifest.FileName gets redacted in filesharing_subsystem (to remove the system-specific file hierarchy),
 	// but we need to *store* the full path because the sender also uses it to locate the file
 	lenDiff := len(filepath) - len(path.Base(filepath))
+
+	profile.SetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fmt.Sprintf("%s.ts", key), strconv.FormatInt(time.Now().Unix(), 10))
+	profile.SetScopedZonedAttribute(attr.ConversationScope, attr.FilesharingZone, fmt.Sprintf("%s.manifest", key), string(serializedManifest))
 	profile.SetScopedZonedAttribute(attr.ConversationScope, attr.FilesharingZone, fmt.Sprintf("%s.manifest.size", key), strconv.Itoa(int(math.Ceil(float64(len(serializedManifest)-lenDiff)/float64(files.DefaultChunkSize)))))
 
 	profile.ShareFile(key, string(serializedManifest))

peer/cwtch_peer.go

@@ -18,6 +18,8 @@ import (
 	"sync"
 	"time"
 
+	"cwtch.im/cwtch/model/constants"
+
 	"cwtch.im/cwtch/event"
 	"cwtch.im/cwtch/model"
 	"cwtch.im/cwtch/model/attr"
@@ -33,7 +35,7 @@ var autoHandleableEvents = map[event.Type]bool{event.EncryptedGroupMessage: true
 	event.ServerStateChange: true, event.NewGroupInvite: true, event.NewMessageFromPeer: true,
 	event.PeerAcknowledgement: true, event.PeerError: true, event.SendMessageToPeerError: true, event.SendMessageToGroupError: true,
 	event.NewGetValMessageFromPeer: true, event.NewRetValMessageFromPeer: true, event.ProtocolEngineStopped: true, event.RetryServerRequest: true,
-	event.ManifestSizeReceived: true, event.ManifestReceived: true}
+	event.ManifestSizeReceived: true, event.ManifestReceived: true, event.FileDownloaded: true}
 
 // DefaultEventsToHandle specifies which events will be subscribed to
 //  when a peer has its Init() function called
@@ -594,13 +596,14 @@ func (cp *cwtchPeer) StartGroup(name string, server string) (int, error) {
 
 // AddServer takes in a serialized server specification (a bundle of related keys) and adds a contact for the
 // server assuming there are no errors and the contact doesn't already exist.
+// Returns the onion of the new server if added
 // TODO in the future this function should also integrate with a trust provider to validate the key bundle.
 // Status: Ready for 1.5
 func (cp *cwtchPeer) AddServer(serverSpecification string) error {
 	// This confirms that the server did at least sign the bundle
 	keyBundle, err := model.DeserializeAndVerify([]byte(serverSpecification))
 	if err != nil {
-		return err
+		return "", err
 	}
 	log.Debugf("Got new key bundle %v", keyBundle.Serialize())
 
@@ -608,7 +611,7 @@ func (cp *cwtchPeer) AddServer(serverSpecification string) error {
 	// keys or subsets of keys, but for now they must commit only to a complete set of keys required for Cwtch Groups
 	// (that way we can be assured that the keybundle we store is a valid one)
 	if !keyBundle.HasKeyType(model.KeyTypeTokenOnion) || !keyBundle.HasKeyType(model.KeyTypeServerOnion) || !keyBundle.HasKeyType(model.KeyTypePrivacyPass) {
-		return errors.New("keybundle is incomplete")
+		return "", errors.New("keybundle is incomplete")
 	}
 
 	if keyBundle.HasKeyType(model.KeyTypeServerOnion) {
@@ -930,6 +933,13 @@ func (cp *cwtchPeer) storeMessage(handle string, message string, sent time.Time)
 // ShareFile begins hosting the given serialized manifest
 // Status: Ready for 1.5
 func (cp *cwtchPeer) ShareFile(fileKey string, serializedManifest string) {
+	tsStr, exists := cp.GetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fmt.Sprintf("%s.ts", fileKey))
+	if exists {
+		ts, err := strconv.ParseInt(tsStr, 10, 64)
+		if err != nil || ts < time.Now().Unix()-2592000 {
+			log.Errorf("ignoring request to download a file offered more than 30 days ago")
+		}
+	}
 	cp.eventBus.Publish(event.NewEvent(event.ShareManifest, map[event.Field]string{event.FileKey: fileKey, event.SerializedManifest: serializedManifest}))
 }
 
@@ -1044,7 +1054,7 @@ func (cp *cwtchPeer) eventHandler() {
 
 			manifestFilePath, exists := cp.GetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fmt.Sprintf("%v.manifest", fileKey))
 			if exists {
-				downloadFilePath, exists := cp.GetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fileKey)
+				downloadFilePath, exists := cp.GetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fmt.Sprintf("%v.path", fileKey))
 				if exists {
 					log.Debugf("downloading manifest to %v, file to %v", manifestFilePath, downloadFilePath)
 					var manifest files.Manifest
@@ -1079,7 +1089,9 @@ func (cp *cwtchPeer) eventHandler() {
 			} else {
 				log.Errorf("no download path found for manifest: %v", fileKey)
 			}
-
+		case event.FileDownloaded:
+			fileKey := ev.Data[event.FileKey]
+			cp.SetScopedZonedAttribute(attr.LocalScope, attr.FilesharingZone, fmt.Sprintf("%s.complete", fileKey), "true")
 		case event.NewRetValMessageFromPeer:
 			onion := ev.Data[event.RemotePeer]
 			scope := ev.Data[event.Scope]