auth-token: allow other authentication types to use auth-token.

Fixes  #4070

rhodecode/authentication/base.py

@@ -490,13 +490,19 b' def loadplugin(plugin_id):'
     or None on failure.
     """
     # TODO: Disusing pyramids thread locals to retrieve the registry.
-    authn_registry = get_current_registry().getUtility(IAuthnPluginRegistry)
+    authn_registry = get_authn_registry()
     plugin = authn_registry.get_plugin(plugin_id)
     if plugin is None:
         log.error('Authentication plugin not found: "%s"', plugin_id)
     return plugin
 
 
+def get_authn_registry(registry=None):
+    registry = registry or get_current_registry()
+    authn_registry = registry.getUtility(IAuthnPluginRegistry)
+    return authn_registry
+
+
 def get_auth_cache_manager(custom_ttl=None):
     return caches.get_cache_manager(
         'auth_plugins', 'rhodecode.authentication', custom_ttl)
@@ -520,7 +526,7 b' def authenticate(username, password, env'
                          % auth_type)
     headers_only = environ and not (username and password)
 
-    authn_registry = get_current_registry().getUtility(IAuthnPluginRegistry)
+    authn_registry = get_authn_registry()
     for plugin in authn_registry.get_plugins_for_authentication():
         plugin.set_auth_type(auth_type)
         user = plugin.get_user(username)

rhodecode/authentication/plugins/auth_token.py

@@ -83,13 +83,17 b' class RhodeCodeAuthPlugin(RhodeCodeAuthP'
             allowed_auth_plugins=None, allowed_auth_sources=None):
         """
         Custom method for this auth that doesn't accept empty users. And also
-        allows rhodecode and authtoken extern_type to auth with this. But only
-        via vcs mode
+        allows users from all other active plugins to use it and also
+        authenticate against it. But only via vcs mode
         """
-        # only this and rhodecode plugins can use this type
-        from rhodecode.authentication.plugins import auth_rhodecode
-        allowed_auth_plugins = [
-            self.name, auth_rhodecode.RhodeCodeAuthPlugin.name]
+        from rhodecode.authentication.base import get_authn_registry
+        authn_registry = get_authn_registry()
+
+        active_plugins = set(
+            [x.name for x in authn_registry.get_plugins_for_authentication()])
+        active_plugins.discard(self.name)
+
+        allowed_auth_plugins = [self.name] + list(active_plugins)
         # only for vcs operations
         allowed_auth_sources = [VCS_TYPE]
 

rhodecode/authentication/views.py

@@ -26,8 +26,8 b' from pyramid.httpexceptions import HTTPF'
 from pyramid.renderers import render
 from pyramid.response import Response
 
-from rhodecode.authentication.base import get_auth_cache_manager
-from rhodecode.authentication.interface import IAuthnPluginRegistry
+from rhodecode.authentication.base import (
+    get_auth_cache_manager, get_authn_registry)
 from rhodecode.lib import auth
 from rhodecode.lib.auth import LoginRequired, HasPermissionAllDecorator
 from rhodecode.model.forms import AuthSettingsForm
@@ -125,7 +125,7 b' class AuthSettingsView(object):'
     @HasPermissionAllDecorator('hg.admin')
     def index(self, defaults=None, errors=None, prefix_error=False):
         defaults = defaults or {}
-        authn_registry = self.request.registry.getUtility(IAuthnPluginRegistry)
+        authn_registry = get_authn_registry(self.request.registry)
         enabled_plugins = SettingsModel().get_auth_plugins()
 
         # Create template context and render it.