Add initial login view and debug panel with tview

9 files changed, 487 insertions, 1 deletions

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..21d312a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{yaml,yml}]
+indent_style = space
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9f11b75
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.idea/
diff --git a/README.md b/README.md
index ce5b4a9..be70bf4 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,2 @@
 # gomuks
-A Go terminal matrix client.
+A terminal Matrix client written in Go.
diff --git a/config.go b/config.go
new file mode 100644
index 0000000..3510e4a
--- /dev/null
+++ b/config.go
@@ -0,0 +1,70 @@
+// 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 main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"gopkg.in/yaml.v2"
+)
+
+type Config struct {
+	MXID string `yaml:"mxid"`
+	HS   string `yaml:"homeserver"`
+
+	dir     string   `yaml:"-"`
+	Session *Session `yaml:"-"`
+}
+
+func (config *Config) Load(dir string) {
+	config.dir = dir
+	os.MkdirAll(dir, 0700)
+	configPath := filepath.Join(dir, "config.yaml")
+	data, err := ioutil.ReadFile(configPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return
+		} else {
+			fmt.Println("Failed to read config from", configPath)
+			panic(err)
+		}
+	}
+
+	err = yaml.Unmarshal(data, &config)
+	if err != nil {
+		fmt.Println("Failed to parse config at", configPath)
+		panic(err)
+	}
+}
+
+func (config *Config) Save() {
+	data, err := yaml.Marshal(&config)
+	if err != nil {
+		debug.Print("Failed to marshal config")
+		panic(err)
+	}
+
+	path := filepath.Join(config.dir, "config.yaml")
+	err = ioutil.WriteFile(path, data, 0600)
+	if err != nil {
+		debug.Print("Failed to write config to", path)
+		panic(err)
+	}
+}
diff --git a/debug.go b/debug.go
new file mode 100644
index 0000000..2533d5c
--- /dev/null
+++ b/debug.go
@@ -0,0 +1,56 @@
+// 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 main
+
+import (
+	"fmt"
+
+	"github.com/rivo/tview"
+)
+
+type DebugPane struct {
+	text string
+	pane *tview.TextView
+	num  int
+}
+
+func (db *DebugPane) Printf(text string, args ...interface{}) {
+	db.num++
+	db.Write(fmt.Sprintf("[%d] %s\n", db.num, fmt.Sprintf(text, args...)))
+}
+
+func (db *DebugPane) Print(text ...interface{}) {
+	db.num++
+	db.Write(fmt.Sprintf("[%d] %s", db.num, fmt.Sprintln(text...)))
+}
+
+func (db *DebugPane) Write(text string) {
+	if db.pane != nil {
+		db.text += text
+		db.pane.SetText(db.text)
+	}
+}
+
+func (db *DebugPane) Wrap(main *tview.Pages) tview.Primitive {
+	db.pane = tview.NewTextView()
+	db.pane.SetBorder(true).SetTitle("Debug output")
+	db.text += "[0] Debug pane initialized\n"
+	db.pane.SetText(db.text)
+	return tview.NewGrid().SetRows(0, 20).SetColumns(0).
+		AddItem(main, 0, 0, 1, 1, 1, 1, true).
+		AddItem(db.pane, 1, 0, 1, 1, 1, 1, false)
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..4888c39
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,14 @@
+module "maunium.net/go/gomuks"
+
+require (
+	"github.com/gdamore/encoding" v0.0.0-20151215212835-b23993cbb635
+	"github.com/gdamore/tcell" v1.0.0
+	"github.com/jroimartin/gocui" v0.0.0-20170827195011-4f518eddb04b
+	"github.com/lucasb-eyer/go-colorful" v0.0.0-20170903184257-231272389856
+	"github.com/matrix-org/gomatrix" v0.0.0-20171003113848-a7fc80c8060c
+	"github.com/mattn/go-runewidth" v0.0.2
+	"github.com/nsf/termbox-go" v0.0.0-20180303152453-e2050e41c884
+	"github.com/rivo/tview" v0.0.0-20180313071706-0b69b9b58142
+	"golang.org/x/text" v0.0.0-20171214130843-f21a4dfb5e38
+	"gopkg.in/yaml.v2" v1.1.1-gopkgin-v2.1.1
+)
diff --git a/gomuks.go b/gomuks.go
new file mode 100644
index 0000000..8ffc2e9
--- /dev/null
+++ b/gomuks.go
@@ -0,0 +1,113 @@
+// 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 main
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/gdamore/tcell"
+	"github.com/rivo/tview"
+)
+
+var matrix = new(MatrixContainer)
+var config = new(Config)
+var debug = new(DebugPane)
+
+func main() {
+	configDir := filepath.Join(os.Getenv("HOME"), ".config/gomuks")
+	os.MkdirAll(configDir, 0700)
+	config.Load(configDir)
+
+	views := tview.NewPages()
+	InitUI(views)
+
+	main := debug.Wrap(views)
+
+	if len(config.MXID) > 0 {
+		config.LoadSession(config.MXID)
+	}
+	matrix.Init(config)
+
+	if err := tview.NewApplication().SetRoot(main, true).Run(); err != nil {
+		panic(err)
+	}
+}
+
+func InitUI(views *tview.Pages) {
+	views.AddPage("login", InitLoginUI(), true, true)
+}
+
+func Center(width, height int, p tview.Primitive) tview.Primitive {
+	return tview.NewFlex().
+		AddItem(tview.NewBox(), 0, 1, false).
+		AddItem(tview.NewFlex().
+		SetDirection(tview.FlexRow).
+		AddItem(tview.NewBox(), 0, 1, false).
+		AddItem(p, height, 1, true).
+		AddItem(tview.NewBox(), 0, 1, false), width, 1, true).
+		AddItem(tview.NewBox(), 0, 1, false)
+}
+
+type FormTextView struct {
+	*tview.TextView
+}
+
+func (ftv *FormTextView) GetLabel() string {
+	return ""
+}
+
+func (ftv *FormTextView) SetFormAttributes(label string, labelColor, bgColor, fieldTextColor, fieldBgColor tcell.Color) tview.FormItem {
+	return ftv
+}
+
+func (ftv *FormTextView) GetFieldWidth() int {
+	_, _, w, _ := ftv.TextView.GetRect()
+	return w
+}
+
+func (ftv *FormTextView) SetFinishedFunc(handler func(key tcell.Key)) tview.FormItem {
+	ftv.SetDoneFunc(handler)
+	return ftv
+}
+
+func login(form *tview.Form) func() {
+	return func() {
+		hs := form.GetFormItem(0).(*tview.InputField).GetText()
+		mxid := form.GetFormItem(1).(*tview.InputField).GetText()
+		password := form.GetFormItem(2).(*tview.InputField).GetText()
+		debug.Printf("%s %s %s", hs, mxid, password)
+		config.HS = hs
+		debug.Print(matrix.Init(config))
+		debug.Print(matrix.Login(mxid, password))
+	}
+}
+
+func InitLoginUI() tview.Primitive {
+	form := tview.NewForm().SetButtonsAlign(tview.AlignCenter)
+	hs := config.HS
+	if len(hs) == 0 {
+		hs = "https://matrix.org"
+	}
+	form.
+		AddInputField("Homeserver", hs, 30, nil, nil).
+		AddInputField("Username", config.MXID, 30, nil, nil).
+		AddPasswordField("Password", "", 30, '*', nil).
+		AddButton("Log in", login(form))
+	form.SetBorder(true).SetTitle("Log in to Matrix")
+	return Center(45, 13, form)
+}
diff --git a/matrix.go b/matrix.go
new file mode 100644
index 0000000..b559f17
--- /dev/null
+++ b/matrix.go
@@ -0,0 +1,118 @@
+// 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 main
+
+import (
+	"fmt"
+
+	"github.com/matrix-org/gomatrix"
+)
+
+type MatrixContainer struct {
+	lient   *gomatrix.Client
+	config  *Config
+	running bool
+	stop    chan bool
+}
+
+func (c *MatrixContainer) Initialized() bool {
+	return c.lient != nil
+}
+
+func (c *MatrixContainer) Init(config *Config) error {
+	c.config = config
+
+	if c.lient != nil {
+		c.lient.StopSync()
+	}
+
+	if len(c.config.HS) == 0 {
+		return fmt.Errorf("no homeserver in config")
+	}
+
+	var mxid, accessToken string
+	if c.config.Session != nil {
+		accessToken = c.config.Session.AccessToken
+		mxid = c.config.MXID
+	}
+
+	var err error
+	c.lient, 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 *MatrixContainer) Login(user, password string) error {
+	resp, err := c.lient.Login(&gomatrix.ReqLogin{
+		Type:     "m.login.password",
+		User:     user,
+		Password: password,
+	})
+	if err != nil {
+		return err
+	}
+	c.lient.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 *MatrixContainer) Stop() {
+	c.stop <- true
+	c.lient.StopSync()
+}
+
+func (c *MatrixContainer) Start() {
+	debug.Print("Starting sync...")
+	c.running = true
+	c.lient.Store = c.config.Session
+
+	syncer := c.lient.Syncer.(*gomatrix.DefaultSyncer)
+	syncer.OnEventType("m.room.message", c.HandleMessage)
+
+	for {
+		select {
+		case <-c.stop:
+			debug.Print("Stopping sync...")
+			c.running = false
+			return
+		default:
+			if err := c.lient.Sync(); err != nil {
+				debug.Print("Sync() errored", err)
+			}
+		}
+	}
+}
+
+func (c *MatrixContainer) HandleMessage(evt *gomatrix.Event) {
+	debug.Print("Message received")
+}
diff --git a/session.go b/session.go
new file mode 100644
index 0000000..8f0e5d8
--- /dev/null
+++ b/session.go
@@ -0,0 +1,102 @@
+// 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 main
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"path/filepath"
+
+	"github.com/matrix-org/gomatrix"
+)
+
+type Session struct {
+	MXID        string `json:"-"`
+	path        string `json:"-"`
+	AccessToken string
+	NextBatch   string
+	FilterID    string
+	Rooms       map[string]*gomatrix.Room
+}
+
+func (config *Config) LoadSession(mxid string) {
+	config.Session = config.NewSession(mxid)
+	config.Session.Load()
+}
+
+func (config *Config) NewSession(mxid string) *Session {
+	return &Session{
+		MXID:  mxid,
+		path:  filepath.Join(config.dir, mxid+".session"),
+		Rooms: make(map[string]*gomatrix.Room),
+	}
+}
+
+func (s *Session) Load() {
+	data, err := ioutil.ReadFile(s.path)
+	if err != nil {
+		debug.Print("Failed to read session from", s.path)
+		panic(err)
+	}
+
+	err = json.Unmarshal(data, s)
+	if err != nil {
+		debug.Print("Failed to parse session at", s.path)
+		panic(err)
+	}
+}
+
+func (s *Session) Save() {
+	data, err := json.Marshal(s)
+	if err != nil {
+		debug.Print("Failed to marshal session of", s.MXID)
+		panic(err)
+	}
+
+	err = ioutil.WriteFile(s.path, data, 0600)
+	if err != nil {
+		debug.Print("Failed to write session to", s.path)
+		panic(err)
+	}
+}
+
+func (s *Session) LoadFilterID(_ string) string {
+	return s.FilterID
+}
+
+func (s *Session) LoadNextBatch(_ string) string {
+	return s.NextBatch
+}
+
+func (s *Session) LoadRoom(mxid string) *gomatrix.Room {
+	return s.Rooms[mxid]
+}
+
+func (s *Session) SaveFilterID(_, filterID string) {
+	s.FilterID = filterID
+	s.Save()
+}
+
+func (s *Session) SaveNextBatch(_, nextBatch string) {
+	s.NextBatch = nextBatch
+	s.Save()
+}
+
+func (s *Session) SaveRoom(room *gomatrix.Room) {
+	s.Rooms[room.ID] = room
+	s.Save()
+}