move redirect-to-openid code to OpenID plugin

classes/User.php

@@ -670,17 +670,6 @@ class User extends Memcached_DataObject
         return $profile;
     }
 
-    function hasOpenID()
-    {
-        $oid = new User_openid();
-
-        $oid->user_id = $this->id;
-
-        $cnt = $oid->find();
-
-        return ($cnt > 0);
-    }
-
     function getDesign()
     {
         return Design::staticGet('id', $this->design_id);

lib/settingsaction.php

@@ -78,12 +78,8 @@ class SettingsAction extends CurrentUserDesignAction
             common_set_returnto($this->selfUrl());
             $user = common_current_user();
             if (Event::handle('RedirectToLogin', array($this, $user))) {
-                if ($user->hasOpenID()) {
-                    common_redirect(common_local_url('openidlogin'), 303);
-                } else {
                 common_redirect(common_local_url('login'), 303);
             }
-            }
         } else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
             $this->handlePost();
         } else {

plugins/OpenID/OpenIDPlugin.php

@@ -156,4 +156,19 @@ class OpenIDPlugin extends Plugin
         $action->element('meta', array('http-equiv' => 'X-XRDS-Location',
                                        'content' => common_local_url('publicxrds')));
     }
+
+    /**
+     * Redirect to OpenID login if they have an OpenID
+     *
+     * @return boolean whether to continue
+     */
+
+    function onRedirectToLogin($action, $user)
+    {
+        if (!empty($user) && User_openid::hasOpenID($user->id)) {
+            common_redirect(common_local_url('openidlogin'), 303);
+            return false;
+        }
+        return true;
+    }
 }

plugins/OpenID/User_openid.php

@@ -22,4 +22,15 @@ class User_openid extends Memcached_DataObject
 
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
+
+    static function hasOpenID($user_id)
+    {
+        $oid = new User_openid();
+
+        $oid->user_id = $user_id;
+
+        $cnt = $oid->find();
+
+        return ($cnt > 0);
+    }
 }