mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-12-25 18:45:41 +00:00
151 lines
3.9 KiB
Go
151 lines
3.9 KiB
Go
package bdiscord
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import (
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"bytes"
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"github.com/42wim/matterbridge/bridge/config"
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"github.com/42wim/matterbridge/bridge/helper"
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"github.com/matterbridge/discordgo"
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)
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// shouldMessageUseWebhooks checks if have a channel specific webhook, if we're not using auto webhooks
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func (b *Bdiscord) shouldMessageUseWebhooks(msg *config.Message) bool {
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if b.useAutoWebhooks {
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return true
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}
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b.channelsMutex.RLock()
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defer b.channelsMutex.RUnlock()
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if ci, ok := b.channelInfoMap[msg.Channel+b.Account]; ok {
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if ci.Options.WebhookURL != "" {
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return true
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}
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}
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return false
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}
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// maybeGetLocalAvatar checks if UseLocalAvatar contains the message's
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// account or protocol, and if so, returns the Discord avatar (if exists)
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func (b *Bdiscord) maybeGetLocalAvatar(msg *config.Message) string {
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for _, val := range b.GetStringSlice("UseLocalAvatar") {
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if msg.Protocol != val && msg.Account != val {
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continue
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}
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member, err := b.getGuildMemberByNick(msg.Username)
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if err != nil {
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return ""
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}
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return member.User.AvatarURL("")
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}
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return ""
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}
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// webhookSend send one or more message via webhook, taking care of file
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// uploads (from slack, telegram or mattermost).
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// Returns messageID and error.
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func (b *Bdiscord) webhookSend(msg *config.Message, channelID string) (*discordgo.Message, error) {
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var (
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res *discordgo.Message
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err error
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)
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// If avatar is unset, mutate the message to include the local avatar (but only if settings say we should do this)
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if msg.Avatar == "" {
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msg.Avatar = b.maybeGetLocalAvatar(msg)
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}
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// WebhookParams can have either `Content` or `File`.
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// We can't send empty messages.
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if msg.Text != "" {
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res, err = b.transmitter.Send(
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channelID,
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&discordgo.WebhookParams{
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Content: msg.Text,
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Username: msg.Username,
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AvatarURL: msg.Avatar,
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AllowedMentions: b.getAllowedMentions(),
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},
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)
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if err != nil {
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b.Log.Errorf("Could not send text (%s) for message %#v: %s", msg.Text, msg, err)
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}
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}
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if msg.Extra != nil {
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for _, f := range msg.Extra["file"] {
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fi := f.(config.FileInfo)
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file := discordgo.File{
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Name: fi.Name,
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ContentType: "",
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Reader: bytes.NewReader(*fi.Data),
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}
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content := ""
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if msg.Text == "" {
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content = fi.Comment
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}
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_, e2 := b.transmitter.Send(
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channelID,
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&discordgo.WebhookParams{
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Username: msg.Username,
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AvatarURL: msg.Avatar,
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File: &file,
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Content: content,
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AllowedMentions: b.getAllowedMentions(),
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},
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)
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if e2 != nil {
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b.Log.Errorf("Could not send file %#v for message %#v: %s", file, msg, e2)
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}
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}
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}
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return res, err
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}
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func (b *Bdiscord) handleEventWebhook(msg *config.Message, channelID string) (string, error) {
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// skip events
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if msg.Event != "" && msg.Event != config.EventUserAction && msg.Event != config.EventJoinLeave && msg.Event != config.EventTopicChange {
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return "", nil
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}
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// skip empty messages
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if msg.Text == "" && (msg.Extra == nil || len(msg.Extra["file"]) == 0) {
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b.Log.Debugf("Skipping empty message %#v", msg)
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return "", nil
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}
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msg.Text = helper.ClipMessage(msg.Text, MessageLength, b.GetString("MessageClipped"))
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msg.Text = b.replaceUserMentions(msg.Text)
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// discord username must be [0..32] max
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if len(msg.Username) > 32 {
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msg.Username = msg.Username[0:32]
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}
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if msg.ID != "" {
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b.Log.Debugf("Editing webhook message")
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err := b.transmitter.Edit(channelID, msg.ID, &discordgo.WebhookParams{
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Content: msg.Text,
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Username: msg.Username,
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AllowedMentions: b.getAllowedMentions(),
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})
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if err == nil {
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return msg.ID, nil
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}
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b.Log.Errorf("Could not edit webhook message: %s", err)
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}
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b.Log.Debugf("Processing webhook sending for message %#v", msg)
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discordMsg, err := b.webhookSend(msg, channelID)
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if err != nil {
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b.Log.Errorf("Could not broadcast via webhook for message %#v: %s", msg, err)
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return "", err
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}
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if discordMsg == nil {
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return "", nil
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}
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return discordMsg.ID, nil
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}
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