misc: pass the authentication request to the adapter object (#50833)

mellon/adapters.py

@@ -58,6 +58,9 @@ def display_truncated_list(l, max_length=10):
 
 
 class DefaultAdapter(object):
+    def __init__(self, request=None):
+        self.request = request
+
     def get_idp(self, entity_id):
         '''Find the first IdP definition matching entity_id'''
         for idp in self.get_idps():

mellon/backends.py

@@ -34,7 +34,7 @@ class SAMLBackend(ModelBackend):
         if not idp:
             logger.debug('unknown idp %s', saml_attributes['issuer'])
             return None
-        adapters = utils.get_adapters(idp)
+        adapters = utils.get_adapters(idp, request=request)
         for adapter in adapters:
             if not hasattr(adapter, 'authorize'):
                 continue

mellon/utils.py

@@ -180,11 +180,12 @@ def import_object(path):
 
 
 @to_list
-def get_adapters(idp={}):
+def get_adapters(idp={}, **kwargs):
     idp = idp or {}
     adapters = tuple(idp.get('ADAPTER', ())) + tuple(app_settings.ADAPTER)
     for adapter in adapters:
-        yield import_object(adapter)()
+        klass = import_object(adapter)
+        yield klass(**kwargs)
 
 
 def get_values(saml_attributes, name):