Wim 7886f05e88 Download (and upload) avatar images from mattermost and telegram when mediaserver is configured. Closes #362 ...

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.

2018-02-20 01:15:25 +01:00

..

config.go

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

2018-02-20 01:15:25 +01:00