right now seafile does not support Gravatar Icons. I wrote a short script to update the user-avatar in seafile with his gravatar-icon.
You can find the description and the script on the german seafile page: https://de.seafile.com/gravatar-icons-seafile/
The blog entry is in german but I assume that the code is easy to understand:
- loop the user accounts in seafile
- check if the user account still has the default seafile-avatar
- check if there is a gravatar available
- update the avatar in seafile.
Happy testing and I am looking forward to your feedback.