diff --git a/progit/lib.py b/progit/lib.py
index 77ed739..33f5105 100644
--- a/progit/lib.py
+++ b/progit/lib.py
@@ -850,3 +850,29 @@ def update_git_ticket(issue, repo, ticketfolder):
 
     # Remove the clone
     shutil.rmtree(newpath)
+
+
+def avatar_url(username, size=64, default='retro'):
+    openid = "http://%s.id.fedoraproject.org/" % username
+    return avatar_url_from_openid(openid, size, default)
+
+
+def avatar_url_from_openid(openid, size=64, default='retro', dns=False):
+    """
+    Our own implementation since fas doesn't support this nicely yet.
+    """
+
+    if dns:  # pragma: no cover
+        # This makes an extra DNS SRV query, which can slow down our webapps.
+        # It is necessary for libravatar federation, though.
+        import libravatar
+        return libravatar.libravatar_url(
+            openid=openid,
+            size=size,
+            default=default,
+        )
+    else:
+        import urllib, hashlib
+        query = urllib.urlencode({'s': size, 'd': default})
+        hash = hashlib.sha256(openid).hexdigest()
+        return "https://seccdn.libravatar.org/avatar/%s?%s" % (hash, query)