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Download (and upload) avatar images from mattermost and telegram when mediaserver is configured. Closes #362

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An extra avatarMap (cache) is created for mattermost and telegram.
If MediaServerUpload is configured, the avatar images of users are downloaded the first time a
user sends a message.
If this download succeeds a message with EVENT_AVATAR_DOWNLOAD is sent to the originating protocol.
This message also contains a SHA field (in msg.Extra["file"]), if this is not empty, the sha will
be added to the avatarMap. (so we now have a userid-sha cache)

Next time this user sends a message, the MediaServerUpload/sha/userid.png URL will be used as the
avatar field.
This commit is contained in:
Wim 2018-02-20 00:54:35 +01:00
parent f58be0d1c1
commit 7886f05e88
5 changed files with 129 additions and 10 deletions
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1
bridge/config/config.go
View File

@ -14,6 +14,7 @@ const (
EVENT_TOPIC_CHANGE = "topic_change"
EVENT_FAILURE = "failure"
EVENT_FILE_FAILURE_SIZE = "file_failure_size"
EVENT_AVATAR_DOWNLOAD = "avatar_download"
EVENT_REJOIN_CHANNELS = "rejoin_channels"
EVENT_USER_ACTION = "user_action"
EVENT_MSG_DELETE = "msg_delete"

7
bridge/helper/helper.go
View File

@ -54,3 +54,10 @@ func HandleExtra(msg *config.Message, general *config.Protocol) []config.Message
}
return rmsg
}
func GetAvatar(av map[string]string, userid string, general *config.Protocol) string {
if sha, ok := av[userid]; ok {
return general.MediaServerUpload + "/" + sha + "/" + userid + ".png"
}
return ""
}

47
bridge/mattermost/mattermost.go
View File

@ -35,6 +35,7 @@ type Bmattermost struct {
MMapi
TeamId string
*config.BridgeConfig
avatarMap map[string]string
}
var flog *log.Entry
@ -45,7 +46,7 @@ func init() {
}
func New(cfg *config.BridgeConfig) *Bmattermost {
b := &Bmattermost{BridgeConfig: cfg}
b := &Bmattermost{BridgeConfig: cfg, avatarMap: make(map[string]string)}
b.mmMap = make(map[string]string)
return b
}
@ -149,6 +150,18 @@ func (b *Bmattermost) Send(msg config.Message) (string, error) {
message := msg.Text
channel := msg.Channel
// map the file SHA to our user (caches the avatar)
if msg.Event == config.EVENT_AVATAR_DOWNLOAD {
fi := msg.Extra["file"][0].(config.FileInfo)
/* if we have a sha we have successfully uploaded the file to the media server,
so we can now cache the sha */
if fi.SHA != "" {
flog.Debugf("Added %s to %s in avatarMap", fi.SHA, msg.UserID)
b.avatarMap[msg.UserID] = fi.SHA
}
return "", nil
}
if b.Config.PrefixMessagesWithNick {
message = nick + message
}
@ -235,7 +248,8 @@ func (b *Bmattermost) handleMatter() {
go b.handleMatterClient(mchan)
}
for message := range mchan {
rmsg := config.Message{Username: message.Username, Channel: message.Channel, Account: b.Account, UserID: message.UserID, ID: message.ID, Event: message.Event, Extra: message.Extra}
avatar := helper.GetAvatar(b.avatarMap, message.UserID, b.General)
rmsg := config.Message{Username: message.Username, Channel: message.Channel, Account: b.Account, UserID: message.UserID, ID: message.ID, Event: message.Event, Extra: message.Extra, Avatar: avatar}
text, ok := b.replaceAction(message.Text)
if ok {
rmsg.Event = config.EVENT_USER_ACTION
@ -261,6 +275,11 @@ func (b *Bmattermost) handleMatterClient(mchan chan *MMMessage) {
continue
}
// only download avatars if we have a place to upload them (configured mediaserver)
if b.General.MediaServerUpload != "" {
b.handleDownloadAvatar(message.UserID, message.Channel)
}
m := &MMMessage{Extra: make(map[string][]interface{})}
props := message.Post.Props
@ -365,3 +384,27 @@ func (b *Bmattermost) replaceAction(text string) (string, bool) {
}
return text, false
}
// 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) {
var name string
msg := config.Message{Username: "system", Text: "avatar", Channel: channel, Account: b.Account, UserID: userid, Event: config.EVENT_AVATAR_DOWNLOAD, Extra: make(map[string][]interface{})}
if _, ok := b.avatarMap[userid]; !ok {
data, resp := b.mc.Client.GetProfileImage(userid, "")
if resp.Error != nil {
flog.Errorf("ProfileImage download failed for %#v %s", userid, resp.Error)
}
if len(data) <= b.General.MediaDownloadSize {
name = userid + ".png"
flog.Debugf("download OK %#v %#v", name, len(data))
msg.Extra["file"] = append(msg.Extra["file"], config.FileInfo{Name: name, Data: &data, Avatar: true})
flog.Debugf("Sending avatar download message from %#v on %s to gateway", userid, b.Account)
flog.Debugf("Message is %#v", msg)
b.Remote <- msg
} else {
flog.Errorf("File %#v to large to download (%#v). MediaDownloadSize is %#v", name, len(data), b.General.MediaDownloadSize)
}
}
}

56
bridge/telegram/telegram.go
View File

@ -14,6 +14,7 @@ import (
type Btelegram struct {
c *tgbotapi.BotAPI
*config.BridgeConfig
avatarMap map[string]string // keep cache of userid and avatar sha
}
var flog *log.Entry
@ -24,7 +25,7 @@ func init() {
}
func New(cfg *config.BridgeConfig) *Btelegram {
return &Btelegram{BridgeConfig: cfg}
return &Btelegram{BridgeConfig: cfg, avatarMap: make(map[string]string)}
}
func (b *Btelegram) Connect() error {
@ -63,6 +64,18 @@ func (b *Btelegram) Send(msg config.Message) (string, error) {
return "", err
}
// map the file SHA to our user (caches the avatar)
if msg.Event == config.EVENT_AVATAR_DOWNLOAD {
fi := msg.Extra["file"][0].(config.FileInfo)
/* if we have a sha we have successfully uploaded the file to the media server,
so we can now cache the sha */
if fi.SHA != "" {
flog.Debugf("Added %s to %s in avatarMap", fi.SHA, msg.UserID)
b.avatarMap[msg.UserID] = fi.SHA
}
return "", nil
}
if b.Config.MessageFormat == "HTML" {
msg.Text = makeHTML(msg.Text)
}
@ -173,6 +186,10 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
}
text = message.Text
channel = strconv.FormatInt(message.Chat.ID, 10)
// only download avatars if we have a place to upload them (configured mediaserver)
if b.General.MediaServerUpload != "" {
b.handleDownloadAvatar(message.From.ID, channel)
}
}
if username == "" {
@ -235,8 +252,9 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
}
if text != "" || len(fmsg.Extra) > 0 {
avatar := helper.GetAvatar(b.avatarMap, strconv.Itoa(message.From.ID), b.General)
flog.Debugf("Sending message from %s on %s to gateway", username, b.Account)
msg := config.Message{Username: username, Text: text, Channel: channel, Account: b.Account, UserID: strconv.Itoa(message.From.ID), ID: strconv.Itoa(message.MessageID), Extra: fmsg.Extra}
msg := config.Message{Username: username, Text: text, Channel: channel, Account: b.Account, UserID: strconv.Itoa(message.From.ID), ID: strconv.Itoa(message.MessageID), Extra: fmsg.Extra, Avatar: avatar}
flog.Debugf("Message is %#v", msg)
b.Remote <- msg
}
@ -251,6 +269,39 @@ func (b *Btelegram) getFileDirectURL(id string) string {
return res
}
// 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 *Btelegram) handleDownloadAvatar(userid int, channel string) {
msg := config.Message{Username: "system", Text: "avatar", Channel: channel, Account: b.Account, UserID: strconv.Itoa(userid), Event: config.EVENT_AVATAR_DOWNLOAD, Extra: make(map[string][]interface{})}
if _, ok := b.avatarMap[strconv.Itoa(userid)]; !ok {
photos, err := b.c.GetUserProfilePhotos(tgbotapi.UserProfilePhotosConfig{UserID: userid, Limit: 1})
if err != nil {
flog.Errorf("Userprofile download failed for %#v %s", userid, err)
}
if len(photos.Photos) > 0 {
photo := photos.Photos[0][0]
url := b.getFileDirectURL(photo.FileID)
name := strconv.Itoa(userid) + ".png"
flog.Debugf("trying to download %#v fileid %#v with size %#v", name, photo.FileID, photo.FileSize)
if photo.FileSize <= b.General.MediaDownloadSize {
data, err := helper.DownloadFile(url)
if err != nil {
flog.Errorf("download %s failed %#v", url, err)
} else {
flog.Debugf("download OK %#v %#v %#v", name, len(*data), len(url))
msg.Extra["file"] = append(msg.Extra["file"], config.FileInfo{Name: name, Data: data, Avatar: true})
flog.Debugf("Sending avatar download message from %#v on %s to gateway", userid, b.Account)
flog.Debugf("Message is %#v", msg)
b.Remote <- msg
}
} else {
flog.Errorf("File %#v to large to download (%#v). MediaDownloadSize is %#v", name, photo.FileSize, b.General.MediaDownloadSize)
}
}
}
}
func (b *Btelegram) handleDownload(file interface{}, comment string, msg *config.Message) {
size := 0
url := ""
@ -311,7 +362,6 @@ func (b *Btelegram) handleDownload(file interface{}, comment string, msg *config
return
}
// if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra
// limit to 1MB for now
flog.Debugf("trying to download %#v fileid %#v with size %#v", name, fileid, size)
if size <= b.General.MediaDownloadSize {
data, err := helper.DownloadFile(url)

28
gateway/gateway.go
View File

@ -178,6 +178,14 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrM
}
}
}
// Avatar downloads are only relevant for telegram and mattermost for now
if msg.Event == config.EVENT_AVATAR_DOWNLOAD {
if dest.Protocol != "mattermost" &&
dest.Protocol != "telegram" {
return brMsgIDs
}
}
// only relay join/part when configged
if msg.Event == config.EVENT_JOIN_LEAVE && !gw.Bridges[dest.Account].Config.ShowJoinPart {
return brMsgIDs
@ -185,6 +193,7 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrM
if msg.Event == config.EVENT_TOPIC_CHANGE && !gw.Bridges[dest.Account].Config.ShowTopicChange {
return brMsgIDs
}
// broadcast to every out channel (irc QUIT)
if msg.Channel == "" && msg.Event != config.EVENT_JOIN_LEAVE {
log.Debug("empty channel")
@ -194,9 +203,16 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrM
origmsg := msg
channels := gw.getDestChannel(&msg, *dest)
for _, channel := range channels {
// do not send to ourself
if channel.ID == getChannelID(origmsg) {
continue
// Only send the avatar download event to ourselves.
if msg.Event == config.EVENT_AVATAR_DOWNLOAD {
if channel.ID != getChannelID(origmsg) {
continue
}
} else {
// do not send to ourself for any other event
if channel.ID == getChannelID(origmsg) {
continue
}
}
log.Debugf("Sending %#v from %s (%s) to %s (%s)", msg, msg.Account, originchannel, dest.Account, channel.Name)
msg.Channel = channel.Name
@ -362,15 +378,17 @@ func (gw *Gateway) handleFiles(msg *config.Message) {
durl := gw.Config.General.MediaServerDownload + "/" + sha1sum + "/" + fi.Name
extra := msg.Extra["file"][i].(config.FileInfo)
extra.URL = durl
extra.SHA = sha1sum
msg.Extra["file"][i] = extra
req, _ := http.NewRequest("PUT", url, reader)
req.Header.Set("Content-Type", "binary/octet-stream")
_, err := client.Do(req)
if err != nil {
log.Errorf("mediaserver upload failed: %#v", err)
continue
}
log.Debugf("mediaserver download URL = %s", durl)
// we uploaded the file successfully. Add the SHA
extra.SHA = sha1sum
msg.Extra["file"][i] = extra
}
}
}