cwtch/peer/cwtch_peer.go

package peer

import (
	"encoding/json"
	"errors"
	"git.mascherari.press/cwtch/model"
	"git.mascherari.press/cwtch/peer/connections"
	"git.mascherari.press/cwtch/peer/peer"
	"git.mascherari.press/cwtch/protocol"
	"github.com/s-rah/go-ricochet/application"
	"github.com/s-rah/go-ricochet/channels"
	"github.com/s-rah/go-ricochet/connection"
	"io/ioutil"
	"sync"
)

/**

PeerConnectionPool
       Background thread running Process()
       Pointer to connections

Move CwtchPeerChannel under peer/
       Write tests for Peer Channel
*/

type CwtchPeer struct {
	connection.AutoConnectionHandler
	Profile            *model.Profile
	mutex              sync.Mutex
	Log                chan string `json:"-"`
	connectionsManager *connections.Manager
}

func NewCwtchPeer(name string) *CwtchPeer {
	cp := new(CwtchPeer)
	cp.Profile = model.GenerateNewProfile(name)
	cp.Log = make(chan string)
	cp.connectionsManager = connections.NewConnectionsManager()
	cp.Init()
	return cp
}

func (cp *CwtchPeer) Save(profilefile string) error {
	cp.mutex.Lock()
	bytes, _ := json.Marshal(cp)
	err := ioutil.WriteFile(profilefile, bytes, 0600)
	cp.mutex.Unlock()
	return err
}

func LoadCwtchPeer(profilefile string) (*CwtchPeer, error) {
	bytes, _ := ioutil.ReadFile(profilefile)
	cp := new(CwtchPeer)
	err := json.Unmarshal(bytes, &cp)
	return cp, err
}

// AddContactRequest is the entry point for CwtchPeer relationships
func (cp *CwtchPeer) PeerWithOnion(onion string) {
	cp.connectionsManager.ManagePeerConnection(onion, cp.Profile)
}

// InviteOnionToGroup kicks off the invite process
func (cp *CwtchPeer) InviteOnionToGroup(onion string, groupid string) error {
	group := cp.Profile.GetGroupByGroupId(groupid)
	if group == nil {
		invite := group.Invite()
		ppc := cp.connectionsManager.GetPeerPeerConnectionForOnion(onion)
		ppc.SendGroupInvite(invite)
	}
	return errors.New("group id could not be found")
}

func (cp *CwtchPeer) ReceiveGroupMessage(server string, gm *protocol.GroupMessage) {
	cp.Profile.AttemptDecryption(gm.Ciphertext)
}

func (cp *CwtchPeer) JoinServer(onion string) {
	cp.connectionsManager.ManageServerConnection(onion, cp.ReceiveGroupMessage)
}

func (cp *CwtchPeer) SendMessageToGroup(groupid string, message string) {
	group := cp.Profile.GetGroupByGroupId(groupid)
	psc := cp.connectionsManager.GetPeerServerConnectionForOnion(group.GroupServer)
	ct, _ := cp.Profile.EncryptMessageToGroup(message, groupid)
	gm := &protocol.GroupMessage{
		Ciphertext: ct,
	}
	psc.SendGroupMessage(gm)
}

func (cp *CwtchPeer) Listen() error {
	cwtchpeer := new(application.RicochetApplication)
	l, err := application.SetupOnion("127.0.0.1:9051", "tcp4", "", cp.Profile.OnionPrivateKey, 9878)

	if err != nil {
		return err
	}

	af := application.ApplicationInstanceFactory{}
	af.Init()
	af.AddHandler("im.cwtch.peer", func(rai *application.ApplicationInstance) func() channels.Handler {
		cpi := new(CwtchPeerInstance)
		cpi.Init(rai, cwtchpeer)
		return func() channels.Handler {
			cpc := new(peer.CwtchPeerChannel)
			cpc.Handler = &CwtchPeerHandler{Onion: rai.RemoteHostname, Peer: cp}
			return cpc
		}
	})

	cwtchpeer.Init(cp.Profile.OnionPrivateKey, af, new(application.AcceptAllContactManager))
	cp.Log <- "Running cwtch peer on " + l.Addr().String()
	cwtchpeer.Run(l)
	return nil
}

type CwtchPeerInstance struct {
	rai *application.ApplicationInstance
	ra  *application.RicochetApplication
}

func (cpi *CwtchPeerInstance) Init(rai *application.ApplicationInstance, ra *application.RicochetApplication) {
	cpi.rai = rai
	cpi.ra = ra
}

type CwtchPeerHandler struct {
	Onion string
	Peer  *CwtchPeer
}

func (cph *CwtchPeerHandler) ClientIdentity(ci *protocol.CwtchIdentity) {
	cph.Peer.Log <- "Received Client Identity from " + cph.Onion + " " + ci.String()
	cph.Peer.Profile.AddCwtchIdentity(cph.Onion, ci)
}

func (cph *CwtchPeerHandler) HandleGroupInvite(gci *protocol.GroupChatInvite) {
	cph.Peer.Profile.ProcessInvite(gci, cph.Onion)
}

func (cph *CwtchPeerHandler) HandleGroupMessage(gm *protocol.GroupMessage) {
}