gomuks/matrix/matrix.go

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// 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/>.
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package matrix
import (
"fmt"
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"strings"
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"time"
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"maunium.net/go/gomatrix"
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"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"
)
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type Container struct {
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client *gomatrix.Client
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gmx ifc.Gomuks
ui ifc.GomuksUI
config *config.Config
running bool
stop chan bool
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typing int64
}
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func NewMatrixContainer(gmx ifc.Gomuks) *Container {
c := &Container{
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config: gmx.Config(),
ui: gmx.UI(),
gmx: gmx,
}
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return c
}
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func (c *Container) InitClient() error {
if len(c.config.HS) == 0 {
return fmt.Errorf("no homeserver in config")
}
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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
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c.client, err = gomatrix.NewClient(c.config.HS, mxid, accessToken)
if err != nil {
return err
}
c.stop = make(chan bool, 1)
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if c.config.Session != nil && len(c.config.Session.AccessToken) > 0 {
go c.Start()
}
return nil
}
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func (c *Container) Initialized() bool {
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return c.client != nil
}
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func (c *Container) Login(user, password string) error {
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resp, err := c.client.Login(&gomatrix.ReqLogin{
Type: "m.login.password",
User: user,
Password: password,
})
if err != nil {
return err
}
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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
}
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func (c *Container) Stop() {
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if c.running {
c.stop <- true
c.client.StopSync()
}
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}
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func (c *Container) Client() *gomatrix.Client {
return c.client
}
func (c *Container) UpdateRoomList() {
resp, err := c.client.JoinedRooms()
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if err != nil {
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respErr, _ := err.(gomatrix.HTTPError).WrappedError.(gomatrix.RespError)
if respErr.ErrCode == "M_UNKNOWN_TOKEN" {
c.OnLogout()
return
}
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debug.Print("Error fetching room list:", err)
return
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}
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c.ui.MainView().SetRooms(resp.JoinedRooms)
}
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func (c *Container) OnLogout() {
c.Stop()
c.ui.SetView(ifc.ViewLogin)
}
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func (c *Container) OnLogin() {
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c.client.Store = c.config.Session
syncer := NewGomuksSyncer(c.config.Session)
syncer.OnEventType("m.room.message", c.HandleMessage)
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syncer.OnEventType("m.room.member", c.HandleMembership)
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syncer.OnEventType("m.typing", c.HandleTyping)
c.client.Syncer = syncer
c.UpdateRoomList()
}
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func (c *Container) Start() {
defer c.gmx.Recover()
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c.ui.SetView(ifc.ViewMain)
c.OnLogin()
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if c.client == nil {
return
}
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debug.Print("Starting sync...")
c.running = true
for {
select {
case <-c.stop:
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debug.Print("Stopping sync...")
c.running = false
return
default:
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if err := c.client.Sync(); err != nil {
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debug.Print("Sync() errored", err)
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} else {
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debug.Print("Sync() returned without error")
}
}
}
}
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func (c *Container) HandleMessage(evt *gomatrix.Event) {
room, message := c.ui.MainView().ProcessMessageEvent(evt)
if room != nil {
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room.AddMessage(message, widget.AppendMessage)
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c.ui.Render()
}
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}
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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
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room.Room.UpdateState(evt)
// TODO This should probably also be in a different place
room.UpdateUserList()
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room.AddMessage(message, widget.AppendMessage)
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c.ui.Render()
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}
}
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func (c *Container) HandleTyping(evt *gomatrix.Event) {
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users := evt.Content["user_ids"].([]interface{})
strUsers := make([]string, len(users))
for i, user := range users {
strUsers[i] = user.(string)
}
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c.ui.MainView().SetTyping(evt.RoomID, strUsers)
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}
func (c *Container) SendMessage(roomID, text string) (string, error) {
defer c.gmx.Recover()
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c.SendTyping(roomID, false)
resp, err := c.client.SendText(roomID, text)
if err != nil {
return "", err
}
return resp.EventID, nil
}
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func (c *Container) SendTyping(roomID string, typing bool) {
defer c.gmx.Recover()
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ts := time.Now().Unix()
if c.typing > ts && typing {
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return
}
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if typing {
c.client.UserTyping(roomID, true, 5000)
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c.typing = ts + 5
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} else {
c.client.UserTyping(roomID, false, 0)
c.typing = 0
}
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}
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func (c *Container) JoinRoom(roomID string) error {
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if len(roomID) == 0 {
return fmt.Errorf("invalid room ID")
}
server := ""
if roomID[0] == '!' {
server = roomID[strings.Index(roomID, ":")+1:]
}
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_, err := c.client.JoinRoom(roomID, server, nil)
if err != nil {
return err
}
return nil
}
func (c *Container) LeaveRoom(roomID string) error {
if len(roomID) == 0 {
return fmt.Errorf("invalid room ID")
}
_, err := c.client.LeaveRoom(roomID)
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if err != nil {
return err
}
return nil
}
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func (c *Container) getState(roomID string) []*gomatrix.Event {
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content := make([]*gomatrix.Event, 0)
err := c.client.StateEvent(roomID, "", "", &content)
if err != nil {
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debug.Print("Error getting state of", roomID, err)
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return nil
}
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return content
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}
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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
}
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func (c *Container) GetRoom(roomID string) *rooms.Room {
room := c.config.Session.GetRoom(roomID)
if room != nil && len(room.State) == 0 {
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events := c.getState(room.ID)
if events != nil {
for _, event := range events {
room.UpdateState(event)
}
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}
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}
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return room
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}