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Diffstat (limited to 'connector')
-rw-r--r--connector/connector.go11
-rw-r--r--connector/mattermost/mattermost.go31
2 files changed, 38 insertions, 4 deletions
diff --git a/connector/connector.go b/connector/connector.go
index 2235318..30dfea4 100644
--- a/connector/connector.go
+++ b/connector/connector.go
@@ -98,6 +98,11 @@ const (
type Event struct {
Type EventType
+ // If non-empty, the event Id is used to deduplicate events in a channel
+ // This is usefull for backends that provide a backlog of channel messages
+ // when (re-)joining a room
+ Id string
+
// UserID of the user that sent the event
// If this is a direct message event, this event can only have been authored
// by the user we are talking to (and not by ourself)
@@ -120,12 +125,18 @@ type Event struct {
type UserInfo struct {
DisplayName string
+
+ // If non-empty, the Filename of the avatar object will be used by Easybridge
+ // to deduplicate the update events and prevent needless reuploads.
+ // Example strategy that works for the mattermost backend: use the update timestamp as fictious file name
Avatar MediaObject
}
type RoomInfo struct {
Name string
Topic string
+
+ // Same deduplication comment as for UserInfo.Avatar
Picture MediaObject
}
diff --git a/connector/mattermost/mattermost.go b/connector/mattermost/mattermost.go
index 6282831..117286b 100644
--- a/connector/mattermost/mattermost.go
+++ b/connector/mattermost/mattermost.go
@@ -354,6 +354,22 @@ func (mm *Mattermost) handleConnected() {
} else {
log.Warnf("Could not get channel members: %s", resp.Error)
}
+
+ // Read backlog
+ // TODO: remember what was the last seen post in this channel
+ backlog, resp := mm.conn.Client.GetPostsForChannel(ch.Id, 0, 1000, "")
+ if resp.Error == nil {
+ for i := 0; i < len(backlog.Order); i++ {
+ post_id := backlog.Order[len(backlog.Order)-i-1]
+ post := backlog.Posts[post_id]
+ post_time := time.Unix(post.CreateAt/1000, 0)
+ post.Message = fmt.Sprintf("[%s] %s",
+ post_time.Format("2006-01-02 15:04:05 MST"), post.Message)
+ mm.handlePost(ch.Name, post, true)
+ }
+ } else {
+ log.Warnf("Could not get channel backlog: %s", resp.Error)
+ }
}
}
@@ -425,6 +441,10 @@ func (mm *Mattermost) handlePosted(msg *model.WebSocketEvent) error {
return err
}
+ return mm.handlePost(channel_name, &post, false)
+}
+
+func (mm *Mattermost) handlePost(channel_name string, post *model.Post, only_messages bool) error {
// Skip self messages
if post.UserId == mm.conn.User.Id {
return nil
@@ -440,6 +460,7 @@ func (mm *Mattermost) handlePosted(msg *model.WebSocketEvent) error {
// Build message event
msg_ev := &Event{
+ Id: post.Id,
Author: userId,
Text: post.Message,
Type: EVENT_MESSAGE,
@@ -489,10 +510,12 @@ func (mm *Mattermost) handlePosted(msg *model.WebSocketEvent) error {
mm.ensureJoined(user, roomId)
if post.Type == "system_header_change" {
- new_header := post.Props["new_header"].(string)
- mm.handler.RoomInfoUpdated(roomId, userId, &RoomInfo{
- Topic: new_header,
- })
+ if !only_messages {
+ new_header := post.Props["new_header"].(string)
+ mm.handler.RoomInfoUpdated(roomId, userId, &RoomInfo{
+ Topic: new_header,
+ })
+ }
} else if post.Type == "" || post.Type == "me" {
msg_ev.Room = roomId
mm.handler.Event(msg_ev)