You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
388 lines
9.6 KiB
Go
388 lines
9.6 KiB
Go
package bdiscord
|
|
|
|
import (
|
|
"github.com/42wim/matterbridge/bridge/config"
|
|
log "github.com/Sirupsen/logrus"
|
|
"github.com/bwmarrin/discordgo"
|
|
"regexp"
|
|
"strings"
|
|
"sync"
|
|
)
|
|
|
|
type bdiscord struct {
|
|
c *discordgo.Session
|
|
Config *config.Protocol
|
|
Remote chan config.Message
|
|
Account string
|
|
Channels []*discordgo.Channel
|
|
Nick string
|
|
UseChannelID bool
|
|
userMemberMap map[string]*discordgo.Member
|
|
guildID string
|
|
webhookID string
|
|
webhookToken string
|
|
channelInfoMap map[string]*config.ChannelInfo
|
|
sync.RWMutex
|
|
}
|
|
|
|
var flog *log.Entry
|
|
var protocol = "discord"
|
|
|
|
func init() {
|
|
flog = log.WithFields(log.Fields{"module": protocol})
|
|
}
|
|
|
|
func New(cfg config.Protocol, account string, c chan config.Message) *bdiscord {
|
|
b := &bdiscord{}
|
|
b.Config = &cfg
|
|
b.Remote = c
|
|
b.Account = account
|
|
b.userMemberMap = make(map[string]*discordgo.Member)
|
|
b.channelInfoMap = make(map[string]*config.ChannelInfo)
|
|
if b.Config.WebhookURL != "" {
|
|
flog.Debug("Configuring Discord Incoming Webhook")
|
|
b.webhookID, b.webhookToken = b.splitURL(b.Config.WebhookURL)
|
|
}
|
|
return b
|
|
}
|
|
|
|
func (b *bdiscord) Connect() error {
|
|
var err error
|
|
flog.Info("Connecting")
|
|
if b.Config.WebhookURL == "" {
|
|
flog.Info("Connecting using token")
|
|
} else {
|
|
flog.Info("Connecting using webhookurl (for posting) and token")
|
|
}
|
|
if !strings.HasPrefix(b.Config.Token, "Bot ") {
|
|
b.Config.Token = "Bot " + b.Config.Token
|
|
}
|
|
b.c, err = discordgo.New(b.Config.Token)
|
|
if err != nil {
|
|
flog.Debugf("%#v", err)
|
|
return err
|
|
}
|
|
flog.Info("Connection succeeded")
|
|
b.c.AddHandler(b.messageCreate)
|
|
b.c.AddHandler(b.memberUpdate)
|
|
b.c.AddHandler(b.messageUpdate)
|
|
b.c.AddHandler(b.messageDelete)
|
|
err = b.c.Open()
|
|
if err != nil {
|
|
flog.Debugf("%#v", err)
|
|
return err
|
|
}
|
|
guilds, err := b.c.UserGuilds(100, "", "")
|
|
if err != nil {
|
|
flog.Debugf("%#v", err)
|
|
return err
|
|
}
|
|
userinfo, err := b.c.User("@me")
|
|
if err != nil {
|
|
flog.Debugf("%#v", err)
|
|
return err
|
|
}
|
|
b.Nick = userinfo.Username
|
|
for _, guild := range guilds {
|
|
if guild.Name == b.Config.Server {
|
|
b.Channels, err = b.c.GuildChannels(guild.ID)
|
|
b.guildID = guild.ID
|
|
if err != nil {
|
|
flog.Debugf("%#v", err)
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (b *bdiscord) Disconnect() error {
|
|
return nil
|
|
}
|
|
|
|
func (b *bdiscord) JoinChannel(channel config.ChannelInfo) error {
|
|
b.channelInfoMap[channel.ID] = &channel
|
|
idcheck := strings.Split(channel.Name, "ID:")
|
|
if len(idcheck) > 1 {
|
|
b.UseChannelID = true
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (b *bdiscord) Send(msg config.Message) (string, error) {
|
|
flog.Debugf("Receiving %#v", msg)
|
|
channelID := b.getChannelID(msg.Channel)
|
|
if channelID == "" {
|
|
flog.Errorf("Could not find channelID for %v", msg.Channel)
|
|
return "", nil
|
|
}
|
|
if msg.Event == config.EVENT_USER_ACTION {
|
|
msg.Text = "_" + msg.Text + "_"
|
|
}
|
|
|
|
wID := b.webhookID
|
|
wToken := b.webhookToken
|
|
if ci, ok := b.channelInfoMap[msg.Channel+b.Account]; ok {
|
|
if ci.Options.WebhookURL != "" {
|
|
wID, wToken = b.splitURL(ci.Options.WebhookURL)
|
|
}
|
|
}
|
|
|
|
if wID == "" {
|
|
flog.Debugf("Broadcasting using token (API)")
|
|
if msg.Event == config.EVENT_MSG_DELETE {
|
|
if msg.ID == "" {
|
|
return "", nil
|
|
}
|
|
err := b.c.ChannelMessageDelete(channelID, msg.ID)
|
|
return "", err
|
|
}
|
|
if msg.ID != "" {
|
|
_, err := b.c.ChannelMessageEdit(channelID, msg.ID, msg.Username+msg.Text)
|
|
return msg.ID, err
|
|
}
|
|
res, err := b.c.ChannelMessageSend(channelID, msg.Username+msg.Text)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return res.ID, err
|
|
}
|
|
flog.Debugf("Broadcasting using Webhook")
|
|
err := b.c.WebhookExecute(
|
|
wID,
|
|
wToken,
|
|
true,
|
|
&discordgo.WebhookParams{
|
|
Content: msg.Text,
|
|
Username: msg.Username,
|
|
AvatarURL: msg.Avatar,
|
|
})
|
|
return "", err
|
|
}
|
|
|
|
func (b *bdiscord) messageDelete(s *discordgo.Session, m *discordgo.MessageDelete) {
|
|
rmsg := config.Message{Account: b.Account, ID: m.ID, Event: config.EVENT_MSG_DELETE, Text: config.EVENT_MSG_DELETE}
|
|
rmsg.Channel = b.getChannelName(m.ChannelID)
|
|
if b.UseChannelID {
|
|
rmsg.Channel = "ID:" + m.ChannelID
|
|
}
|
|
flog.Debugf("Sending message from %s to gateway", b.Account)
|
|
flog.Debugf("Message is %#v", rmsg)
|
|
b.Remote <- rmsg
|
|
}
|
|
|
|
func (b *bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdate) {
|
|
if b.Config.EditDisable {
|
|
return
|
|
}
|
|
// only when message is actually edited
|
|
if m.Message.EditedTimestamp != "" {
|
|
flog.Debugf("Sending edit message")
|
|
m.Content = m.Content + b.Config.EditSuffix
|
|
b.messageCreate(s, (*discordgo.MessageCreate)(m))
|
|
}
|
|
}
|
|
|
|
func (b *bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
|
|
// not relay our own messages
|
|
if m.Author.Username == b.Nick {
|
|
return
|
|
}
|
|
// if using webhooks, do not relay if it's ours
|
|
if b.useWebhook() && m.Author.Bot && b.isWebhookID(m.Author.ID) {
|
|
return
|
|
}
|
|
|
|
if len(m.Attachments) > 0 {
|
|
for _, attach := range m.Attachments {
|
|
m.Content = m.Content + "\n" + attach.URL
|
|
}
|
|
}
|
|
|
|
var text string
|
|
if m.Content != "" {
|
|
flog.Debugf("Receiving message %#v", m.Message)
|
|
if len(m.MentionRoles) > 0 {
|
|
m.Message.Content = b.replaceRoleMentions(m.Message.Content)
|
|
}
|
|
m.Message.Content = b.stripCustomoji(m.Message.Content)
|
|
m.Message.Content = b.replaceChannelMentions(m.Message.Content)
|
|
text = m.ContentWithMentionsReplaced()
|
|
}
|
|
|
|
rmsg := config.Message{Account: b.Account, Avatar: "https://cdn.discordapp.com/avatars/" + m.Author.ID + "/" + m.Author.Avatar + ".jpg",
|
|
UserID: m.Author.ID, ID: m.ID}
|
|
|
|
rmsg.Channel = b.getChannelName(m.ChannelID)
|
|
if b.UseChannelID {
|
|
rmsg.Channel = "ID:" + m.ChannelID
|
|
}
|
|
|
|
if !b.Config.UseUserName {
|
|
rmsg.Username = b.getNick(m.Author)
|
|
} else {
|
|
rmsg.Username = m.Author.Username
|
|
}
|
|
|
|
if b.Config.ShowEmbeds && m.Message.Embeds != nil {
|
|
for _, embed := range m.Message.Embeds {
|
|
text = text + "embed: " + embed.Title + " - " + embed.Description + " - " + embed.URL + "\n"
|
|
}
|
|
}
|
|
|
|
// no empty messages
|
|
if text == "" {
|
|
return
|
|
}
|
|
|
|
text, ok := b.replaceAction(text)
|
|
if ok {
|
|
rmsg.Event = config.EVENT_USER_ACTION
|
|
}
|
|
|
|
rmsg.Text = text
|
|
flog.Debugf("Sending message from %s on %s to gateway", m.Author.Username, b.Account)
|
|
flog.Debugf("Message is %#v", rmsg)
|
|
b.Remote <- rmsg
|
|
}
|
|
|
|
func (b *bdiscord) memberUpdate(s *discordgo.Session, m *discordgo.GuildMemberUpdate) {
|
|
b.Lock()
|
|
if _, ok := b.userMemberMap[m.Member.User.ID]; ok {
|
|
flog.Debugf("%s: memberupdate: user %s (nick %s) changes nick to %s", b.Account, m.Member.User.Username, b.userMemberMap[m.Member.User.ID].Nick, m.Member.Nick)
|
|
}
|
|
b.userMemberMap[m.Member.User.ID] = m.Member
|
|
b.Unlock()
|
|
}
|
|
|
|
func (b *bdiscord) getNick(user *discordgo.User) string {
|
|
var err error
|
|
b.Lock()
|
|
defer b.Unlock()
|
|
if _, ok := b.userMemberMap[user.ID]; ok {
|
|
if b.userMemberMap[user.ID] != nil {
|
|
if b.userMemberMap[user.ID].Nick != "" {
|
|
// only return if nick is set
|
|
return b.userMemberMap[user.ID].Nick
|
|
}
|
|
// otherwise return username
|
|
return user.Username
|
|
}
|
|
}
|
|
// if we didn't find nick, search for it
|
|
member, err := b.c.GuildMember(b.guildID, user.ID)
|
|
if err != nil {
|
|
return user.Username
|
|
}
|
|
b.userMemberMap[user.ID] = member
|
|
// only return if nick is set
|
|
if b.userMemberMap[user.ID].Nick != "" {
|
|
return b.userMemberMap[user.ID].Nick
|
|
}
|
|
return user.Username
|
|
}
|
|
|
|
func (b *bdiscord) getChannelID(name string) string {
|
|
idcheck := strings.Split(name, "ID:")
|
|
if len(idcheck) > 1 {
|
|
return idcheck[1]
|
|
}
|
|
for _, channel := range b.Channels {
|
|
if channel.Name == name {
|
|
return channel.ID
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func (b *bdiscord) getChannelName(id string) string {
|
|
for _, channel := range b.Channels {
|
|
if channel.ID == id {
|
|
return channel.Name
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func (b *bdiscord) replaceRoleMentions(text string) string {
|
|
roles, err := b.c.GuildRoles(b.guildID)
|
|
if err != nil {
|
|
flog.Debugf("%#v", string(err.(*discordgo.RESTError).ResponseBody))
|
|
return text
|
|
}
|
|
for _, role := range roles {
|
|
text = strings.Replace(text, "<@&"+role.ID+">", "@"+role.Name, -1)
|
|
}
|
|
return text
|
|
}
|
|
|
|
func (b *bdiscord) replaceChannelMentions(text string) string {
|
|
var err error
|
|
re := regexp.MustCompile("<#[0-9]+>")
|
|
text = re.ReplaceAllStringFunc(text, func(m string) string {
|
|
channel := b.getChannelName(m[2 : len(m)-1])
|
|
// if at first don't succeed, try again
|
|
if channel == "" {
|
|
b.Channels, err = b.c.GuildChannels(b.guildID)
|
|
if err != nil {
|
|
return "#unknownchannel"
|
|
}
|
|
channel = b.getChannelName(m[2 : len(m)-1])
|
|
return "#" + channel
|
|
}
|
|
return "#" + channel
|
|
})
|
|
return text
|
|
}
|
|
|
|
func (b *bdiscord) replaceAction(text string) (string, bool) {
|
|
if strings.HasPrefix(text, "_") && strings.HasSuffix(text, "_") {
|
|
return strings.Replace(text, "_", "", -1), true
|
|
}
|
|
return text, false
|
|
}
|
|
|
|
func (b *bdiscord) stripCustomoji(text string) string {
|
|
// <:doge:302803592035958784>
|
|
re := regexp.MustCompile("<(:.*?:)[0-9]+>")
|
|
return re.ReplaceAllString(text, `$1`)
|
|
}
|
|
|
|
// splitURL splits a webhookURL and returns the id and token
|
|
func (b *bdiscord) splitURL(url string) (string, string) {
|
|
webhookURLSplit := strings.Split(url, "/")
|
|
return webhookURLSplit[len(webhookURLSplit)-2], webhookURLSplit[len(webhookURLSplit)-1]
|
|
}
|
|
|
|
// useWebhook returns true if we have a webhook defined somewhere
|
|
func (b *bdiscord) useWebhook() bool {
|
|
if b.Config.WebhookURL != "" {
|
|
return true
|
|
}
|
|
for _, channel := range b.channelInfoMap {
|
|
if channel.Options.WebhookURL != "" {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// isWebhookID returns true if the specified id is used in a defined webhook
|
|
func (b *bdiscord) isWebhookID(id string) bool {
|
|
if b.Config.WebhookURL != "" {
|
|
wID, _ := b.splitURL(b.Config.WebhookURL)
|
|
if wID == id {
|
|
return true
|
|
}
|
|
}
|
|
for _, channel := range b.channelInfoMap {
|
|
if channel.Options.WebhookURL != "" {
|
|
wID, _ := b.splitURL(channel.Options.WebhookURL)
|
|
if wID == id {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|