adjust for multiple instances of oidc plugin

src/pas/plugins/oidc/services/oidc/oidc.py

@@ -42,7 +42,9 @@ def json_body(self) -> dict:
     def plugin(self) -> OIDCPlugin:
         if not self._plugin:
             try:
-                self._plugin = utils.get_plugin()
+                for plugin in utils.get_plugins():
+                    if plugin.getId() == self.provider_id:
+                        self._plugin = plugin
             except AttributeError:
                 # Plugin not installed yet
                 self._plugin = None
@@ -77,7 +79,8 @@ def reply(self) -> dict:
         """
         provider = self.provider_id
         plugin = self.plugin
-        if not (plugin and provider == "oidc"):
+
+        if not plugin:
             return self._provider_not_found(provider)
 
         session = utils.initialize_session(plugin, self.request)

src/pas/plugins/oidc/utils.py

@@ -5,6 +5,7 @@
 from pas.plugins.oidc import logger
 from pas.plugins.oidc import PLUGIN_ID
 from pas.plugins.oidc import plugins
+from pas.plugins.oidc.plugins import OIDCPlugin
 from pas.plugins.oidc.session import Session
 from plone import api
 from typing import Union
@@ -77,10 +78,15 @@ def url_cleanup(url: str) -> str:
     return url
 
 
-def get_plugin() -> plugins.OIDCPlugin:
-    """Return the OIDC plugin for the current portal."""
+def get_plugins() -> list:
+    """ Return all OIDC plugins for the current portal."""
     pas = api.portal.get_tool("acl_users")
-    return getattr(pas, PLUGIN_ID)
+    plugins_to_return = []
+    for plugin in pas.objectValues():
+        if isinstance(plugin, OIDCPlugin):
+            plugins_to_return.append(plugin)
+
+    return plugins_to_return
 
 
 # Flow: Start