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// gomuks - A terminal Matrix client written in Go.
// Copyright (C) 2019 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package ui
import (
"encoding/json"
"fmt"
"io"
"math"
"os"
"regexp"
"runtime"
dbg "runtime/debug"
"runtime/pprof"
"runtime/trace"
"strconv"
"strings"
"time"
"github.com/lucasb-eyer/go-colorful"
"github.com/russross/blackfriday/v2"
"maunium.net/go/mautrix"
"maunium.net/go/mautrix/format"
"maunium.net/go/gomuks/debug"
)
func cmdMe(cmd *Command) {
text := strings.Join(cmd.Args, " ")
go cmd.Room.SendMessage(mautrix.MsgEmote, text)
}
// GradientTable from https://github.com/lucasb-eyer/go-colorful/blob/master/doc/gradientgen/gradientgen.go
type GradientTable []struct {
Col colorful.Color
Pos float64
}
func (gt GradientTable) GetInterpolatedColorFor(t float64) colorful.Color {
for i := 0; i < len(gt)-1; i++ {
c1 := gt[i]
c2 := gt[i+1]
if c1.Pos <= t && t <= c2.Pos {
t := (t - c1.Pos) / (c2.Pos - c1.Pos)
return c1.Col.BlendHcl(c2.Col, t).Clamped()
}
}
return gt[len(gt)-1].Col
}
var rainbow = GradientTable{
{colorful.LinearRgb(1, 0, 0), 0 / 11.0},
{colorful.LinearRgb(1, 0.5, 0), 1 / 11.0},
{colorful.LinearRgb(1, 1, 0), 2 / 11.0},
{colorful.LinearRgb(0.5, 1, 0), 3 / 11.0},
{colorful.LinearRgb(0, 1, 0), 4 / 11.0},
{colorful.LinearRgb(0, 1, 0.5), 5 / 11.0},
{colorful.LinearRgb(0, 1, 1), 6 / 11.0},
{colorful.LinearRgb(0, 0.5, 1), 7 / 11.0},
{colorful.LinearRgb(0, 0, 1), 8 / 11.0},
{colorful.LinearRgb(0.5, 0, 1), 9 / 11.0},
{colorful.LinearRgb(1, 0, 1), 10 / 11.0},
{colorful.LinearRgb(1, 0, 0.5), 11 / 11.0},
}
// TODO this command definitely belongs in a plugin once we have a plugin system.
func makeRainbow(cmd *Command, msgtype mautrix.MessageType) {
text := strings.Join(cmd.Args, " ")
render := NewRainbowRenderer(blackfriday.NewHTMLRenderer(blackfriday.HTMLRendererParameters{
Flags: blackfriday.UseXHTML,
}))
htmlBodyBytes := blackfriday.Run([]byte(text), format.Extensions, blackfriday.WithRenderer(render))
htmlBody := strings.TrimRight(string(htmlBodyBytes), "\n")
htmlBody = format.AntiParagraphRegex.ReplaceAllString(htmlBody, "$1")
text = format.HTMLToText(htmlBody)
count := strings.Count(htmlBody, render.ColorID)
i := -1
htmlBody = regexp.MustCompile(render.ColorID).ReplaceAllStringFunc(htmlBody, func(match string) string {
i++
return rainbow.GetInterpolatedColorFor(float64(i) / float64(count)).Hex()
})
go cmd.Room.SendMessageHTML(msgtype, text, htmlBody)
}
func cmdRainbow(cmd *Command) {
makeRainbow(cmd, mautrix.MsgText)
}
func cmdRainbowMe(cmd *Command) {
makeRainbow(cmd, mautrix.MsgEmote)
}
func cmdNotice(cmd *Command) {
go cmd.Room.SendMessage(mautrix.MsgNotice, strings.Join(cmd.Args, " "))
}
func cmdAccept(cmd *Command) {
room := cmd.Room.MxRoom()
if room.SessionMember.Membership != "invite" {
cmd.Reply("/accept can only be used in rooms you're invited to")
return
}
_, server, _ := mautrix.ParseUserID(room.SessionMember.Sender)
_, err := cmd.Matrix.JoinRoom(room.ID, server)
if err != nil {
cmd.Reply("Failed to accept invite:", err)
} else {
cmd.Reply("Successfully accepted invite")
}
cmd.MainView.UpdateTags(room)
go cmd.MainView.LoadHistory(room.ID)
}
func cmdReject(cmd *Command) {
room := cmd.Room.MxRoom()
if room.SessionMember.Membership != "invite" {
cmd.Reply("/reject can only be used in rooms you're invited to")
return
}
err := cmd.Matrix.LeaveRoom(room.ID)
if err != nil {
cmd.Reply("Failed to reject invite: %v", err)
} else {
cmd.Reply("Successfully accepted invite")
}
}
func cmdID(cmd *Command) {
cmd.Reply("The internal ID of this room is %s", cmd.Room.MxRoom().ID)
}
type SelectReason string
const (
SelectReply SelectReason = "reply to"
SelectReact = "react to"
SelectRedact = "redact"
SelectDownload = "download"
SelectOpen = "open"
)
func cmdReply(cmd *Command) {
cmd.Room.StartSelecting(SelectReply, strings.Join(cmd.Args, " "))
}
func cmdRedact(cmd *Command) {
cmd.Room.StartSelecting(SelectRedact, strings.Join(cmd.Args, " "))
}
func cmdDownload(cmd *Command) {
cmd.Room.StartSelecting(SelectDownload, strings.Join(cmd.Args, " "))
}
func cmdOpen(cmd *Command) {
cmd.Room.StartSelecting(SelectOpen, strings.Join(cmd.Args, " "))
}
func cmdReact(cmd *Command) {
if len(cmd.Args) == 0 {
cmd.Reply("Usage: /react <reaction>")
return
}
cmd.Room.StartSelecting(SelectReact, strings.Join(cmd.Args, " "))
}
func cmdTags(cmd *Command) {
tags := cmd.Room.MxRoom().RawTags
if len(cmd.Args) > 0 && cmd.Args[0] == "--internal" {
tags = cmd.Room.MxRoom().Tags()
}
if len(tags) == 0 {
if cmd.Room.MxRoom().IsDirect {
cmd.Reply("This room has no tags, but it's marked as a direct chat.")
} else {
cmd.Reply("This room has no tags.")
}
return
}
var resp strings.Builder
resp.WriteString("Tags in this room:\n")
for _, tag := range tags {
if tag.Order != "" {
_, _ = fmt.Fprintf(&resp, "%s (order: %s)\n", tag.Tag, tag.Order)
} else {
_, _ = fmt.Fprintf(&resp, "%s (no order)\n", tag.Tag)
}
}
cmd.Reply(strings.TrimSpace(resp.String()))
}
func cmdTag(cmd *Command) {
if len(cmd.Args) == 0 {
cmd.Reply("Usage: /tag <tag> [order]")
return
}
order := math.NaN()
if len(cmd.Args) > 1 {
var err error
order, err = strconv.ParseFloat(cmd.Args[1], 64)
if err != nil {
cmd.Reply("%s is not a valid order: %v", cmd.Args[1], err)
return
}
}
var err error
if len(cmd.Args) > 2 && cmd.Args[2] == "--reset" {
tags := mautrix.Tags{
cmd.Args[0]: {Order: json.Number(fmt.Sprintf("%f", order))},
}
for _, tag := range cmd.Room.MxRoom().RawTags {
tags[tag.Tag] = mautrix.Tag{Order: tag.Order}
}
err = cmd.Matrix.Client().SetTags(cmd.Room.MxRoom().ID, tags)
} else {
err = cmd.Matrix.Client().AddTag(cmd.Room.MxRoom().ID, cmd.Args[0], order)
}
if err != nil {
cmd.Reply("Failed to add tag:", err)
}
}
func cmdUntag(cmd *Command) {
if len(cmd.Args) == 0 {
cmd.Reply("Usage: /untag <tag>")
return
}
err := cmd.Matrix.Client().RemoveTag(cmd.Room.MxRoom().ID, cmd.Args[0])
if err != nil {
cmd.Reply("Failed to remove tag:", err)
}
}
func cmdRoomNick(cmd *Command) {
room := cmd.Room.MxRoom()
member := room.GetMember(room.SessionUserID)
member.Displayname = strings.Join(cmd.Args, " ")
_, err := cmd.Matrix.Client().SendStateEvent(room.ID, mautrix.StateMember, room.SessionUserID, member)
if err != nil {
cmd.Reply("Failed to set room nick:", err)
}
}
func cmdHeapProfile(cmd *Command) {
runtime.GC()
dbg.FreeOSMemory()
memProfile, err := os.Create("gomuks.heap.prof")
if err != nil {
debug.Print("Failed to open gomuks.heap.prof:", err)
return
}
defer func() {
err := memProfile.Close()
if err != nil {
debug.Print("Failed to close gomuks.heap.prof:", err)
}
}()
if err := pprof.WriteHeapProfile(memProfile); err != nil {
debug.Print("Heap profile error:", err)
}
}
func runTimedProfile(cmd *Command, start func(writer io.Writer) error, stop func(), task, file string) {
if len(cmd.Args) == 0 {
cmd.Reply("Usage: /%s <seconds>", cmd.Command)
} else if dur, err := strconv.Atoi(cmd.Args[0]); err != nil || dur < 0 {
cmd.Reply("Usage: /%s <seconds>", cmd.Command)
} else if cpuProfile, err := os.Create(file); err != nil {
debug.Printf("Failed to open %s: %v", file, err)
} else if err = start(cpuProfile); err != nil {
_ = cpuProfile.Close()
debug.Print(task, "error:", err)
} else {
cmd.Reply("Started %s for %d seconds", task, dur)
go func() {
time.Sleep(time.Duration(dur) * time.Second)
stop()
cmd.Reply("%s finished.", task)
err := cpuProfile.Close()
if err != nil {
debug.Print("Failed to close gomuks.cpu.prof:", err)
}
}()
}
}
func cmdCPUProfile(cmd *Command) {
runTimedProfile(cmd, pprof.StartCPUProfile, pprof.StopCPUProfile, "CPU profiling", "gomuks.cpu.prof")
}
func cmdTrace(cmd *Command) {
runTimedProfile(cmd, trace.Start, trace.Stop, "Call tracing", "gomuks.trace")
}
func cmdQuit(cmd *Command) {
cmd.Gomuks.Stop(true)
}
func cmdClearCache(cmd *Command) {
cmd.Config.Clear()
cmd.Gomuks.Stop(false)
}
func cmdUnknownCommand(cmd *Command) {
cmd.Reply("Unknown command \"%s\". Try \"/help\" for help.", cmd.Command)
}
func cmdHelp(cmd *Command) {
cmd.Reply(`# General
/help - Show this "temporary" help message.
/quit - Quit gomuks.
/clearcache - Clear cache and quit gomuks.
/logout - Log out of Matrix.
/toggle <thing> - Temporary command to toggle various UI features.
Things: rooms, users, baremessages, images, typingnotif
# Sending special messages
/me <message> - Send an emote message.
/notice <message> - Send a notice (generally used for bot messages).
/rainbow <message> - Send rainbow text (markdown not supported).
/rainbowme <message> - Send rainbow text in an emote.
/reply [text] - Reply to the selected message.
/react <reaction> - React to the selected message.
/redact [reason] - Redact the selected message.
# Rooms
/pm <user id> <...> - Create a private chat with the given user(s).
/create [room name] - Create a room.
/join <room> [server] - Join a room.
/accept - Accept the invite.
/reject - Reject the invite.
/invite <user id> - Invite the given user to the room.
/roomnick <name> - Change your per-room displayname.
/tag <tag> <priority> - Add the room to <tag>.
/untag <tag> - Remove the room from <tag>.
/tags - List the tags the room is in.
/leave - Leave the current room.
/kick <user id> [reason] - Kick a user.
/ban <user id> [reason] - Ban a user.
/unban <user id> - Unban a user.`)
}
func cmdLeave(cmd *Command) {
err := cmd.Matrix.LeaveRoom(cmd.Room.MxRoom().ID)
debug.Print("Leave room error:", err)
if err == nil {
cmd.MainView.RemoveRoom(cmd.Room.MxRoom())
}
}
func cmdInvite(cmd *Command) {
if len(cmd.Args) != 1 {
cmd.Reply("Usage: /invite <user id>")
return
}
_, err := cmd.Matrix.Client().InviteUser(cmd.Room.MxRoom().ID, &mautrix.ReqInviteUser{UserID: cmd.Args[0]})
if err != nil {
debug.Print("Error in invite call:", err)
cmd.Reply("Failed to invite user: %v", err)
}
}
func cmdBan(cmd *Command) {
if len(cmd.Args) < 1 {
cmd.Reply("Usage: /ban <user> [reason]")
return
}
reason := "you are the weakest link, goodbye!"
if len(cmd.Args) >= 2 {
reason = strings.Join(cmd.Args[1:], " ")
}
_, err := cmd.Matrix.Client().BanUser(cmd.Room.MxRoom().ID, &mautrix.ReqBanUser{Reason: reason, UserID: cmd.Args[0]})
if err != nil {
debug.Print("Error in ban call:", err)
cmd.Reply("Failed to ban user: %v", err)
}
}
func cmdUnban(cmd *Command) {
if len(cmd.Args) != 1 {
cmd.Reply("Usage: /unban <user>")
return
}
_, err := cmd.Matrix.Client().UnbanUser(cmd.Room.MxRoom().ID, &mautrix.ReqUnbanUser{UserID: cmd.Args[0]})
if err != nil {
debug.Print("Error in unban call:", err)
cmd.Reply("Failed to unban user: %v", err)
}
}
func cmdKick(cmd *Command) {
if len(cmd.Args) < 1 {
cmd.Reply("Usage: /kick <user> [reason]")
return
}
reason := "you are the weakest link, goodbye!"
if len(cmd.Args) >= 2 {
reason = strings.Join(cmd.Args[1:], " ")
}
_, err := cmd.Matrix.Client().KickUser(cmd.Room.MxRoom().ID, &mautrix.ReqKickUser{Reason: reason, UserID: cmd.Args[0]})
if err != nil {
debug.Print("Error in kick call:", err)
debug.Print("Failed to kick user:", err)
}
}
func cmdCreateRoom(cmd *Command) {
req := &mautrix.ReqCreateRoom{}
if len(cmd.Args) > 0 {
req.Name = strings.Join(cmd.Args, " ")
}
room, err := cmd.Matrix.CreateRoom(req)
if err != nil {
cmd.Reply("Failed to create room:", err)
return
}
cmd.MainView.SwitchRoom("", room)
}
func cmdPrivateMessage(cmd *Command) {
if len(cmd.Args) == 0 {
cmd.Reply("Usage: /pm <user id> [more user ids...]")
}
req := &mautrix.ReqCreateRoom{
Preset: "trusted_private_chat",
Invite: cmd.Args,
}
room, err := cmd.Matrix.CreateRoom(req)
if err != nil {
cmd.Reply("Failed to create room:", err)
return
}
cmd.MainView.SwitchRoom("", room)
}
func cmdJoin(cmd *Command) {
if len(cmd.Args) == 0 {
cmd.Reply("Usage: /join <room>")
return
}
identifer := cmd.Args[0]
server := ""
if len(cmd.Args) > 1 {
server = cmd.Args[1]
}
room, err := cmd.Matrix.JoinRoom(identifer, server)
debug.Print("Join room error:", err)
if err == nil {
cmd.MainView.AddRoom(room)
}
}
func cmdMSendEvent(cmd *Command) {
if len(cmd.Args) < 2 {
cmd.Reply("Usage: /msend <event type> <content>")
return
}
cmd.Args = append([]string{cmd.Room.MxRoom().ID}, cmd.Args...)
cmdSendEvent(cmd)
}
func cmdSendEvent(cmd *Command) {
if len(cmd.Args) < 3 {
cmd.Reply("Usage: /send <room id> <event type> <content>")
return
}
roomID := cmd.Args[0]
eventType := mautrix.NewEventType(cmd.Args[1])
rawContent := strings.Join(cmd.Args[2:], " ")
var content interface{}
err := json.Unmarshal([]byte(rawContent), &content)
debug.Print(err)
if err != nil {
cmd.Reply("Failed to parse content: %v", err)
return
}
debug.Print("Sending event to", roomID, eventType, content)
resp, err := cmd.Matrix.Client().SendMessageEvent(roomID, eventType, content)
debug.Print(resp, err)
if err != nil {
cmd.Reply("Error from server: %v", err)
} else {
cmd.Reply("Event sent, ID: %s", resp.EventID)
}
}
func cmdMSetState(cmd *Command) {
if len(cmd.Args) < 2 {
cmd.Reply("Usage: /msetstate <event type> <state key> <content>")
return
}
cmd.Args = append([]string{cmd.Room.MxRoom().ID}, cmd.Args...)
cmdSetState(cmd)
}
func cmdSetState(cmd *Command) {
if len(cmd.Args) < 4 {
cmd.Reply("Usage: /setstate <room id> <event type> <state key/`-`> <content>")
return
}
roomID := cmd.Args[0]
eventType := mautrix.NewEventType(cmd.Args[1])
stateKey := cmd.Args[2]
if stateKey == "-" {
stateKey = ""
}
rawContent := strings.Join(cmd.Args[3:], " ")
var content interface{}
err := json.Unmarshal([]byte(rawContent), &content)
if err != nil {
cmd.Reply("Failed to parse content: %v", err)
return
}
debug.Print("Sending state event to", roomID, eventType, stateKey, content)
resp, err := cmd.Matrix.Client().SendStateEvent(roomID, eventType, stateKey, content)
if err != nil {
cmd.Reply("Error from server: %v", err)
} else {
cmd.Reply("State event sent, ID: %s", resp.EventID)
}
}
func cmdToggle(cmd *Command) {
if len(cmd.Args) == 0 {
cmd.Reply("Usage: /toggle <rooms/users/baremessages/images/typingnotif/emojis>")
return
}
switch cmd.Args[0] {
case "rooms":
cmd.Config.Preferences.HideRoomList = !cmd.Config.Preferences.HideRoomList
case "users":
cmd.Config.Preferences.HideUserList = !cmd.Config.Preferences.HideUserList
case "baremessages":
cmd.Config.Preferences.BareMessageView = !cmd.Config.Preferences.BareMessageView
case "images":
cmd.Config.Preferences.DisableImages = !cmd.Config.Preferences.DisableImages
case "typingnotif":
cmd.Config.Preferences.DisableTypingNotifs = !cmd.Config.Preferences.DisableTypingNotifs
case "emojis":
cmd.Config.Preferences.DisableEmojis = !cmd.Config.Preferences.DisableEmojis
case "html":
cmd.Config.Preferences.DisableHTML = !cmd.Config.Preferences.DisableHTML
if cmd.Config.Preferences.DisableHTML {
cmd.Reply("Disabled HTML input")
} else {
cmd.Reply("Enabled HTML input")
}
case "markdown":
cmd.Config.Preferences.DisableMarkdown = !cmd.Config.Preferences.DisableMarkdown
if cmd.Config.Preferences.DisableMarkdown {
cmd.Reply("Disabled Markdown input")
} else {
cmd.Reply("Enabled Markdown input")
}
case "downloads":
cmd.Config.Preferences.DisableDownloads = !cmd.Config.Preferences.DisableDownloads
if cmd.Config.Preferences.DisableDownloads {
cmd.Reply("Disabled Downloads input")
} else {
cmd.Reply("Enabled Downloads input")
}
default:
cmd.Reply("Usage: /toggle <rooms/users/baremessages/images/typingnotif/emojis>")
return
}
// is there a reason this is called twice?
// cmd.UI.Render()
cmd.UI.Render()
go cmd.Matrix.SendPreferencesToMatrix()
}
func cmdLogout(cmd *Command) {
cmd.Matrix.Logout()
}
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