Plugin API hook for Shared Channel file attachment sync (#25874)

* option for auto inviting plugin to all shared channels.

* auto-invite remotes to shared channels when flag set

* fix unit test

* immediately ping new remotes; fix unique siteurl bug

* make i18n-extract

* fix translations

* plugin hooks for file attachments

* hook for profile image sync

* fix profile image sync

* fix unit test

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/platform/services/sharedchannel/sync_send.go

@@ -402,11 +402,17 @@ func (scs *Service) shouldUserSync(user *model.User, channelID string, rc *model
 		}
 		if _, err = scs.server.GetStore().SharedChannel().SaveUser(scu); err != nil {
 			scs.server.Log().Log(mlog.LvlSharedChannelServiceError, "Error adding user to shared channel users",
-				mlog.String("remote_id", rc.RemoteId),
 				mlog.String("user_id", user.Id),
 				mlog.String("channel_id", user.Id),
+				mlog.String("remote_id", rc.RemoteId),
 				mlog.Err(err),
 			)
+		} else {
+			scs.server.Log().Log(mlog.LvlSharedChannelServiceDebug, "Added user to shared channel users",
+				mlog.String("user_id", user.Id),
+				mlog.String("channel_id", user.Id),
+				mlog.String("remote_id", rc.RemoteId),
+			)
 		}
 		return true, true, nil
 	}
@@ -420,30 +426,55 @@ func (scs *Service) syncProfileImage(user *model.User, channelID string, rc *mod
 		return
 	}
 
+	if rc.IsPlugin() {
+		scs.sendProfileImageToPlugin(user, channelID, rc)
+		return
+	}
+
 	ctx, cancel := context.WithTimeout(context.Background(), ProfileImageSyncTimeout)
 	defer cancel()
 
 	rcs.SendProfileImage(ctx, user.Id, rc, scs.app, func(userId string, rc *model.RemoteCluster, resp *remotecluster.Response, err error) {
 		if resp.IsSuccess() {
-			scs.server.Log().Log(mlog.LvlSharedChannelServiceDebug, "Users profile image synchronized",
-				mlog.String("remote_id", rc.RemoteId),
-				mlog.String("user_id", user.Id),
-			)
-
-			if err2 := scs.server.GetStore().SharedChannel().UpdateUserLastSyncAt(user.Id, channelID, rc.RemoteId); err2 != nil {
-				scs.server.Log().Log(mlog.LvlSharedChannelServiceError, "Error updating users LastSyncTime after profile image update",
-					mlog.String("remote_id", rc.RemoteId),
-					mlog.String("user_id", user.Id),
-					mlog.Err(err2),
-				)
-			}
+			scs.recordProfileImageSuccess(user.Id, channelID, rc.RemoteId)
 			return
 		}
 
 		scs.server.Log().Log(mlog.LvlSharedChannelServiceError, "Error synchronizing users profile image",
-			mlog.String("remote_id", rc.RemoteId),
 			mlog.String("user_id", user.Id),
+			mlog.String("channel_id", channelID),
+			mlog.String("remote_id", rc.RemoteId),
 			mlog.Err(err),
 		)
 	})
 }
+
+func (scs *Service) sendProfileImageToPlugin(user *model.User, channelID string, rc *model.RemoteCluster) {
+	if err := scs.app.OnSharedChannelsProfileImageSyncMsg(user, rc); err != nil {
+		scs.server.Log().Log(mlog.LvlSharedChannelServiceError, "Error synchronizing users profile image for plugin",
+			mlog.String("user_id", user.Id),
+			mlog.String("channel_id", channelID),
+			mlog.String("remote_id", rc.RemoteId),
+			mlog.Err(err),
+		)
+	}
+	scs.recordProfileImageSuccess(user.Id, channelID, rc.RemoteId)
+}
+
+func (scs *Service) recordProfileImageSuccess(userID, channelID, remoteID string) {
+	scs.server.Log().Log(mlog.LvlSharedChannelServiceDebug, "Users profile image synchronized",
+		mlog.String("user_id", userID),
+		mlog.String("channel_id", channelID),
+		mlog.String("remote_id", remoteID),
+	)
+
+	// update LastSyncAt for user in SharedChannelUsers table
+	if err := scs.server.GetStore().SharedChannel().UpdateUserLastSyncAt(userID, channelID, remoteID); err != nil {
+		scs.server.Log().Log(mlog.LvlSharedChannelServiceError, "Error updating users LastSyncTime after profile image update",
+			mlog.String("user_id", userID),
+			mlog.String("channel_id", channelID),
+			mlog.String("remote_id", remoteID),
+			mlog.Err(err),
+		)
+	}
+}