Add openSUSE OpenID login

docs/backends/index.rst

@@ -72,6 +72,7 @@ Social backends
    shopify
    skyrock
    soundcloud
+   suse
    thisismyjam
    stackoverflow
    steam

docs/backends/suse.rst

@@ -0,0 +1,13 @@
+SUSE
+====
+
+This section describes how to setup the different services provided by SUSE and openSUSE.
+
+
+openSUSE OpenId
+---------------
+
+openSUSE OpenId works straightforward, not settings are needed. Domains or emails
+whitelists can be applied too, check the whitelists_ settings for details.
+
+.. _whitelists: ../configuration/settings.html#whitelists

social/backends/suse.py

@@ -0,0 +1,18 @@
+"""
+OpenSUSE OpenID support
+
+OpenID also works straightforward, it doesn't need further configurations.
+"""
+from social.backends.open_id import OpenIdAuth
+
+
+class OpenSUSEOpenId(OpenIdAuth):
+    name = 'opensuse'
+    URL = 'https://www.opensuse.org/openid/user/'
+
+    def get_user_id(self, details, response):
+        """
+        Return user unique id provided by service. For openSUSE
+        the nickname is original.
+        """
+        return details['nickname']