Another fixes for authlib

GitHub should correctly retrieve e-mail of the user now. Adding few
debug messages for Fedora backend.

Signed-off-by: Michal Konecny <[email protected]>

anitya/auth.py

@@ -48,14 +48,23 @@ def auth(name):  # pragma: no cover
         if client is None:
             flask.abort(404)
         token = client.authorize_access_token()
+        # Fedora specifics
         if name == "fedora":
             user_info = client.userinfo(token=token)
             user_info["username"] = user_info["preferred_username"]
             user_info["email"] = user_info["username"] + "@fedoraproject.org"
+        # GitHub specifics
         elif name == "github":
             resp = client.get("user", token=token)
             user_info = resp.json()
             user_info["username"] = user_info["login"]
+            if not user_info["email"]:
+                resp = client.get("user/emails", token=token)
+                emails = resp.json()
+                for email in emails:
+                    if email["primary"]:
+                        user_info["email"] = email["email"]
+        # Google specifics
         elif name == "google":
             user_info = token.get("userinfo")
             user_info["username"] = user_info["email"]
@@ -67,12 +76,15 @@ def auth(name):  # pragma: no cover
         _log.debug("Obtained user_info from %s: %s", name, user_info)
 
         # Check if the user exists
+        _log.debug("Looking for the user %s in database...", user_info["email"])
         user = User.query.filter(User.email == user_info["email"]).first()
         if not user:
+            _log.debug("User not found. Creating new user...")
             new_user = User(email=user_info["email"], username=user_info["username"])
             Session.add(new_user)
             Session.commit()
             user = new_user
+        _log.debug("Logging as user %s", user.email)
         flask_login.login_user(user)
 
         if flask.session["next_url"]: