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package bmattermost
import (
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
"github.com/matterbridge/matterclient"
"github.com/mattermost/mattermost-server/v6/model"
)
// handleDownloadAvatar downloads the avatar of userid from channel
// sends a EVENT_AVATAR_DOWNLOAD message to the gateway if successful.
// logs an error message if it fails
func (b *Bmattermost) handleDownloadAvatar(userid string, channel string) {
rmsg := config.Message{
Username: "system",
Text: "avatar",
Channel: channel,
Account: b.Account,
UserID: userid,
Event: config.EventAvatarDownload,
Extra: make(map[string][]interface{}),
}
if _, ok := b.avatarMap[userid]; !ok {
var (
data []byte
err error
)
data, _, err = b.mc.Client.GetProfileImage(userid, "")
if err != nil {
b.Log.Errorf("ProfileImage download failed for %#v %s", userid, err)
return
}
err = helper.HandleDownloadSize(b.Log, &rmsg, userid+".png", int64(len(data)), b.General)
if err != nil {
b.Log.Error(err)
return
}
helper.HandleDownloadData(b.Log, &rmsg, userid+".png", rmsg.Text, "", &data, b.General)
b.Remote <- rmsg
}
}
// nolint:wrapcheck
func (b *Bmattermost) handleDownloadFile(rmsg *config.Message, id string) error {
url, _, _ := b.mc.Client.GetFileLink(id)
finfo, _, err := b.mc.Client.GetFileInfo(id)
if err != nil {
return err
}
err = helper.HandleDownloadSize(b.Log, rmsg, finfo.Name, finfo.Size, b.General)
if err != nil {
return err
}
data, _, err := b.mc.Client.DownloadFile(id, true)
if err != nil {
return err
}
helper.HandleDownloadData(b.Log, rmsg, finfo.Name, rmsg.Text, url, &data, b.General)
return nil
}
func (b *Bmattermost) handleMatter() {
messages := make(chan *config.Message)
if b.GetString("WebhookBindAddress") != "" {
b.Log.Debugf("Choosing webhooks based receiving")
go b.handleMatterHook(messages)
} else {
if b.GetString("Token") != "" {
b.Log.Debugf("Choosing token based receiving")
} else {
b.Log.Debugf("Choosing login/password based receiving")
}
// if for some reason we only want to sent stuff to mattermost but not receive, return
if b.GetString("WebhookBindAddress") == "" && b.GetString("WebhookURL") != "" && b.GetString("Token") == "" && b.GetString("Login") == "" {
b.Log.Debugf("No WebhookBindAddress specified, only WebhookURL. You will not receive messages from mattermost, only sending is possible.")
}
go b.handleMatterClient(messages)
}
var ok bool
for message := range messages {
message.Avatar = helper.GetAvatar(b.avatarMap, message.UserID, b.General)
message.Account = b.Account
message.Text, ok = b.replaceAction(message.Text)
if ok {
message.Event = config.EventUserAction
}
b.Log.Debugf("<= Sending message from %s on %s to gateway", message.Username, b.Account)
b.Log.Debugf("<= Message is %#v", message)
b.Remote <- *message
}
}
// nolint:cyclop
func (b *Bmattermost) handleMatterClient(messages chan *config.Message) {
for message := range b.mc.MessageChan {
b.Log.Debugf("%#v %#v", message.Raw.GetData(), message.Raw.EventType())
if b.skipMessage(message) {
b.Log.Debugf("Skipped message: %#v", message)
continue
}
channelName := b.getChannelName(message.Post.ChannelId)
if channelName == "" {
channelName = message.Channel
}
// only download avatars if we have a place to upload them (configured mediaserver)
if b.General.MediaServerUpload != "" || b.General.MediaDownloadPath != "" {
b.handleDownloadAvatar(message.UserID, channelName)
}
b.Log.Debugf("== Receiving event %#v", message)
rmsg := &config.Message{
Username: message.Username,
UserID: message.UserID,
Channel: channelName,
Text: message.Text,
ID: message.Post.Id,
ParentID: message.Post.RootId, // ParentID is obsolete with mattermost
Extra: make(map[string][]interface{}),
}
// handle mattermost post properties (override username and attachments)
b.handleProps(rmsg, message)
// create a text for bridges that don't support native editing
if message.Raw.EventType() == model.WebsocketEventPostEdited && !b.GetBool("EditDisable") {
rmsg.Text = message.Text + b.GetString("EditSuffix")
}
if message.Raw.EventType() == model.WebsocketEventPostDeleted {
rmsg.Event = config.EventMsgDelete
}
for _, id := range message.Post.FileIds {
err := b.handleDownloadFile(rmsg, id)
if err != nil {
b.Log.Errorf("download failed: %s", err)
}
}
// Use nickname instead of username if defined
if !b.GetBool("useusername") {
if nick := b.mc.GetNickName(rmsg.UserID); nick != "" {
rmsg.Username = nick
}
}
messages <- rmsg
}
}
func (b *Bmattermost) handleMatterHook(messages chan *config.Message) {
for {
message := b.mh.Receive()
b.Log.Debugf("Receiving from matterhook %#v", message)
messages <- &config.Message{
UserID: message.UserID,
Username: message.UserName,
Text: message.Text,
Channel: message.ChannelName,
}
}
}
func (b *Bmattermost) handleUploadFile(msg *config.Message) (string, error) {
var err error
var res, id string
channelID := b.getChannelID(msg.Channel)
for _, f := range msg.Extra["file"] {
fi := f.(config.FileInfo)
id, err = b.mc.UploadFile(*fi.Data, channelID, fi.Name)
if err != nil {
return "", err
}
msg.Text = fi.Comment
if b.GetBool("PrefixMessagesWithNick") {
msg.Text = msg.Username + msg.Text
}
res, err = b.mc.PostMessageWithFiles(channelID, msg.Text, msg.ParentID, []string{id})
}
return res, err
}
// nolint:forcetypeassert
func (b *Bmattermost) handleProps(rmsg *config.Message, message *matterclient.Message) {
props := message.Post.Props
if props == nil {
return
}
if _, ok := props["override_username"].(string); ok {
rmsg.Username = props["override_username"].(string)
}
if _, ok := props["attachments"].([]interface{}); ok {
rmsg.Extra["attachments"] = props["attachments"].([]interface{})
if rmsg.Text != "" {
return
}
for _, attachment := range rmsg.Extra["attachments"] {
attach := attachment.(map[string]interface{})
if attach["text"].(string) != "" {
rmsg.Text += attach["text"].(string)
continue
}
if attach["fallback"].(string) != "" {
rmsg.Text += attach["fallback"].(string)
}
}
}
}
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