1 files changed, 284 insertions, 0 deletions
diff --git a/matrix/matrix.go b/matrix/matrix.go
new file mode 100644
index 0000000..7652188
--- /dev/null
+++ b/matrix/matrix.go
@@ -0,0 +1,284 @@
+// gomuks - A terminal Matrix client written in Go.
+// Copyright (C) 2018 Tulir Asokan
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package matrix
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"maunium.net/go/gomatrix"
+	"maunium.net/go/gomuks/config"
+	"maunium.net/go/gomuks/interface"
+	rooms "maunium.net/go/gomuks/matrix/room"
+	"maunium.net/go/gomuks/ui/debug"
+	"maunium.net/go/gomuks/ui/widget"
+)
+
+type Container struct {
+	client  *gomatrix.Client
+	gmx     ifc.Gomuks
+	ui      ifc.GomuksUI
+	config  *config.Config
+	running bool
+	stop    chan bool
+
+	typing int64
+}
+
+func NewMatrixContainer(gmx ifc.Gomuks) *Container {
+	c := &Container{
+		config: gmx.Config(),
+		ui:     gmx.UI(),
+		gmx:    gmx,
+	}
+
+	return c
+}
+
+func (c *Container) InitClient() error {
+	if len(c.config.HS) == 0 {
+		return fmt.Errorf("no homeserver in config")
+	}
+
+	if c.client != nil {
+		c.Stop()
+		c.client = nil
+	}
+
+	var mxid, accessToken string
+	if c.config.Session != nil {
+		accessToken = c.config.Session.AccessToken
+		mxid = c.config.MXID
+	}
+
+	var err error
+	c.client, err = gomatrix.NewClient(c.config.HS, mxid, accessToken)
+	if err != nil {
+		return err
+	}
+
+	c.stop = make(chan bool, 1)
+
+	if c.config.Session != nil {
+		go c.Start()
+	}
+	return nil
+}
+
+func (c *Container) Initialized() bool {
+	return c.client != nil
+}
+
+func (c *Container) Login(user, password string) error {
+	resp, err := c.client.Login(&gomatrix.ReqLogin{
+		Type:     "m.login.password",
+		User:     user,
+		Password: password,
+	})
+	if err != nil {
+		return err
+	}
+	c.client.SetCredentials(resp.UserID, resp.AccessToken)
+	c.config.MXID = resp.UserID
+	c.config.Save()
+
+	c.config.Session = c.config.NewSession(resp.UserID)
+	c.config.Session.AccessToken = resp.AccessToken
+	c.config.Session.Save()
+
+	go c.Start()
+
+	return nil
+}
+
+func (c *Container) Stop() {
+	if c.running {
+		c.stop <- true
+		c.client.StopSync()
+	}
+}
+
+func (c *Container) Client() *gomatrix.Client {
+	return c.client
+}
+
+func (c *Container) UpdateRoomList() {
+	resp, err := c.client.JoinedRooms()
+	if err != nil {
+		debug.Print("Error fetching room list:", err)
+		return
+	}
+
+	c.ui.MainView().SetRooms(resp.JoinedRooms)
+}
+
+func (c *Container) OnLogin() {
+	c.client.Store = c.config.Session
+
+	syncer := NewGomuksSyncer(c.config.Session)
+	syncer.OnEventType("m.room.message", c.HandleMessage)
+	syncer.OnEventType("m.room.member", c.HandleMembership)
+	syncer.OnEventType("m.typing", c.HandleTyping)
+	c.client.Syncer = syncer
+
+	c.UpdateRoomList()
+}
+
+func (c *Container) Start() {
+	defer c.gmx.Recover()
+
+	c.ui.SetView(ifc.ViewMain)
+	c.OnLogin()
+
+	debug.Print("Starting sync...")
+	c.running = true
+	for {
+		select {
+		case <-c.stop:
+			debug.Print("Stopping sync...")
+			c.running = false
+			return
+		default:
+			if err := c.client.Sync(); err != nil {
+				debug.Print("Sync() errored", err)
+			} else {
+				debug.Print("Sync() returned without error")
+			}
+		}
+	}
+}
+
+func (c *Container) HandleMessage(evt *gomatrix.Event) {
+	room, message := c.ui.MainView().ProcessMessageEvent(evt)
+	if room != nil {
+		room.AddMessage(message, widget.AppendMessage)
+	}
+}
+
+func (c *Container) HandleMembership(evt *gomatrix.Event) {
+	const Hour = 1 * 60 * 60 * 1000
+	if evt.Unsigned.Age > Hour {
+		return
+	}
+
+	room, message := c.ui.MainView().ProcessMembershipEvent(evt, true)
+	if room != nil {
+		// TODO this shouldn't be necessary
+		room.Room.UpdateState(evt)
+		// TODO This should probably also be in a different place
+		room.UpdateUserList()
+
+		room.AddMessage(message, widget.AppendMessage)
+	}
+}
+
+func (c *Container) HandleTyping(evt *gomatrix.Event) {
+	users := evt.Content["user_ids"].([]interface{})
+
+	strUsers := make([]string, len(users))
+	for i, user := range users {
+		strUsers[i] = user.(string)
+	}
+	c.ui.MainView().SetTyping(evt.RoomID, strUsers)
+}
+
+func (c *Container) SendMessage(roomID, message string) {
+	c.gmx.Recover()
+	c.SendTyping(roomID, false)
+	c.client.SendText(roomID, message)
+}
+
+func (c *Container) SendTyping(roomID string, typing bool) {
+	c.gmx.Recover()
+	ts := time.Now().Unix()
+	if c.typing > ts && typing {
+		return
+	}
+
+	if typing {
+		c.client.UserTyping(roomID, true, 5000)
+		c.typing = ts + 5
+	} else {
+		c.client.UserTyping(roomID, false, 0)
+		c.typing = 0
+	}
+}
+
+func (c *Container) JoinRoom(roomID string) error {
+	if len(roomID) == 0 {
+		return fmt.Errorf("invalid room ID")
+	}
+
+	server := ""
+	if roomID[0] == '!' {
+		server = roomID[strings.Index(roomID, ":")+1:]
+	}
+
+	_, err := c.client.JoinRoom(roomID, server, nil)
+	if err != nil {
+		return err
+	}
+
+	// TODO probably safe to remove
+	// c.ui.MainView().AddRoom(resp.RoomID)
+	return nil
+}
+
+func (c *Container) LeaveRoom(roomID string) error {
+	if len(roomID) == 0 {
+		return fmt.Errorf("invalid room ID")
+	}
+
+	_, err := c.client.LeaveRoom(roomID)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *Container) getState(roomID string) []*gomatrix.Event {
+	content := make([]*gomatrix.Event, 0)
+	err := c.client.StateEvent(roomID, "", "", &content)
+	if err != nil {
+		debug.Print("Error getting state of", roomID, err)
+		return nil
+	}
+	return content
+}
+
+func (c *Container) GetHistory(roomID, prevBatch string, limit int) ([]gomatrix.Event, string, error) {
+	resp, err := c.client.Messages(roomID, prevBatch, "", 'b', limit)
+	if err != nil {
+		return nil, "", err
+	}
+	return resp.Chunk, resp.End, nil
+}
+
+func (c *Container) GetRoom(roomID string) *rooms.Room {
+	room := c.config.Session.GetRoom(roomID)
+	if room != nil && len(room.State) == 0 {
+		events := c.getState(room.ID)
+		if events != nil {
+			for _, event := range events {
+				room.UpdateState(event)
+			}
+		}
+	}
+	return room
+}