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