]> git.mxchange.org Git - quix0rs-gnu-social.git/blobdiff - plugins/OpenID/OpenIDPlugin.php
Fix bad i18n function call
[quix0rs-gnu-social.git] / plugins / OpenID / OpenIDPlugin.php
index 88e23ea3e5611308972fb8a1864633785499b9fd..6089777eb9342a520bbe8f3d4bff43e48f67e97a 100644 (file)
@@ -20,7 +20,9 @@
  * @category  Plugin
  * @package   StatusNet
  * @author    Evan Prodromou <evan@status.net>
- * @copyright 2009 StatusNet, Inc.
+ * @author   Craig Andrews <candrews@integralblue.com>
+ * @copyright 2009-2010 StatusNet, Inc.
+ * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  * @link      http://status.net/
  */
@@ -38,20 +40,25 @@ if (!defined('STATUSNET')) {
  * @category Plugin
  * @package  StatusNet
  * @author   Evan Prodromou <evan@status.net>
+ * @author   Craig Andrews <candrews@integralblue.com>
+ * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  * @link     http://status.net/
  * @link     http://openid.net/
  */
-
 class OpenIDPlugin extends Plugin
 {
-    /**
-     * Initializer for the plugin.
-     */
+    // Plugin parameter: set true to disallow non-OpenID logins
+    // If set, overrides the setting in database or $config['site']['openidonly']
+    public $openidOnly = null;
 
-    function __construct()
+    function initialize()
     {
-        parent::__construct();
+        parent::initialize();
+        if ($this->openidOnly !== null) {
+            global $config;
+            $config['site']['openidonly'] = (bool)$this->openidOnly;
+        }
     }
 
     /**
@@ -59,148 +66,374 @@ class OpenIDPlugin extends Plugin
      *
      * Hook for RouterInitialized event.
      *
+     * @param Net_URL_Mapper $m URL mapper
+     *
      * @return boolean hook return
      */
-
     function onStartInitializeRouter($m)
     {
         $m->connect('main/openid', array('action' => 'openidlogin'));
         $m->connect('main/openidtrust', array('action' => 'openidtrust'));
         $m->connect('settings/openid', array('action' => 'openidsettings'));
-        $m->connect('index.php?action=finishopenidlogin', array('action' => 'finishopenidlogin'));
-        $m->connect('index.php?action=finishaddopenid', array('action' => 'finishaddopenid'));
+        $m->connect('index.php?action=finishopenidlogin',
+                    array('action' => 'finishopenidlogin'));
+        $m->connect('index.php?action=finishaddopenid',
+                    array('action' => 'finishaddopenid'));
         $m->connect('main/openidserver', array('action' => 'openidserver'));
-        
+        $m->connect('panel/openid', array('action' => 'openidadminpanel'));
+
+        return true;
+    }
+
+    /**
+     * In OpenID-only mode, disable paths for password stuff
+     *
+     * @param string $path     path to connect
+     * @param array  $defaults path defaults
+     * @param array  $rules    path rules
+     * @param array  $result   unused
+     *
+     * @return boolean hook return
+     */
+    function onStartConnectPath(&$path, &$defaults, &$rules, &$result)
+    {
+        if (common_config('site', 'openidonly')) {
+            // Note that we should not remove the login and register
+            // actions. Lots of auth-related things link to them,
+            // such as when visiting a private site without a session
+            // or revalidating a remembered login for admin work.
+            //
+            // We take those two over with redirects to ourselves
+            // over in onArgsInitialize().
+            static $block = array('main/recoverpassword',
+                                  'settings/password');
+
+            if (in_array($path, $block)) {
+                return false;
+            }
+        }
+
         return true;
     }
 
+    /**
+     * If we've been hit with password-login args, redirect
+     *
+     * @param array $args args (URL, Get, post)
+     *
+     * @return boolean hook return
+     */
+    function onArgsInitialize($args)
+    {
+        if (common_config('site', 'openidonly')) {
+            if (array_key_exists('action', $args)) {
+                $action = trim($args['action']);
+                if (in_array($action, array('login', 'register'))) {
+                    common_redirect(common_local_url('openidlogin'));
+                    exit(0);
+                } else if ($action == 'passwordsettings') {
+                    common_redirect(common_local_url('openidsettings'));
+                    exit(0);
+                } else if ($action == 'recoverpassword') {
+                    throw new ClientException('Unavailable action');
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Public XRDS output hook
+     *
+     * Puts the bits of code needed by some OpenID providers to show
+     * we're good citizens.
+     *
+     * @param Action       $action         Action being executed
+     * @param XMLOutputter &$xrdsOutputter Output channel
+     *
+     * @return boolean hook return
+     */
     function onEndPublicXRDS($action, &$xrdsOutputter)
     {
         $xrdsOutputter->elementStart('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
-                                          'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
-                                          'version' => '2.0'));
+                                                  'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
+                                                  'version' => '2.0'));
         $xrdsOutputter->element('Type', null, 'xri://$xrds*simple');
         //consumer
         foreach (array('finishopenidlogin', 'finishaddopenid') as $finish) {
             $xrdsOutputter->showXrdsService(Auth_OpenID_RP_RETURN_TO_URL_TYPE,
-                                common_local_url($finish));
+                                            common_local_url($finish));
         }
         //provider
         $xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/server',
-                            common_local_url('openidserver'),
-                            null,
-                            null,
-                            'http://specs.openid.net/auth/2.0/identifier_select');
+                                        common_local_url('openidserver'),
+                                        null,
+                                        null,
+                                        'http://specs.openid.net/auth/2.0/identifier_select');
         $xrdsOutputter->elementEnd('XRD');
     }
 
+    /**
+     * User XRDS output hook
+     *
+     * Puts the bits of code needed to discover OpenID endpoints.
+     *
+     * @param Action       $action         Action being executed
+     * @param XMLOutputter &$xrdsOutputter Output channel
+     *
+     * @return boolean hook return
+     */
     function onEndUserXRDS($action, &$xrdsOutputter)
     {
         $xrdsOutputter->elementStart('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
-                                          'xml:id' => 'openid',
-                                          'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
-                                          'version' => '2.0'));
+                                                  'xml:id' => 'openid',
+                                                  'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
+                                                  'version' => '2.0'));
         $xrdsOutputter->element('Type', null, 'xri://$xrds*simple');
-        
+
         //consumer
         $xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/return_to',
-                            common_local_url('finishopenidlogin'));
-                            
+                                        common_local_url('finishopenidlogin'));
+
         //provider
         $xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/signon',
-                            common_local_url('openidserver'),
-                            null,
-                            null,
-                            common_profile_url($action->user->nickname));
+                                        common_local_url('openidserver'),
+                                        null,
+                                        null,
+                                        common_profile_url($action->user->nickname));
         $xrdsOutputter->elementEnd('XRD');
     }
 
-    function onEndLoginGroupNav(&$action)
+    /**
+     * If we're in OpenID-only mode, hide all the main menu except OpenID login.
+     *
+     * @param Action $action Action being run
+     *
+     * @return boolean hook return
+     */
+    function onStartPrimaryNav($action)
+    {
+        if (common_config('site', 'openidonly') && !common_logged_in()) {
+            // TRANS: Tooltip for main menu option "Login"
+            $tooltip = _m('TOOLTIP', 'Login to the site');
+            $action->menuItem(common_local_url('openidlogin'),
+                              // TRANS: Main menu option when not logged in to log in
+                              _m('MENU', 'Login'),
+                              $tooltip,
+                              false,
+                              'nav_login');
+            // TRANS: Tooltip for main menu option "Help"
+            $tooltip = _m('TOOLTIP', 'Help me!');
+            $action->menuItem(common_local_url('doc', array('title' => 'help')),
+                              // TRANS: Main menu option for help on the StatusNet site
+                              _m('MENU', 'Help'),
+                              $tooltip,
+                              false,
+                              'nav_help');
+            if (!common_config('site', 'private')) {
+                // TRANS: Tooltip for main menu option "Search"
+                $tooltip = _m('TOOLTIP', 'Search for people or text');
+                $action->menuItem(common_local_url('peoplesearch'),
+                                  // TRANS: Main menu option when logged in or when the StatusNet instance is not private
+                                  _m('MENU', 'Search'), $tooltip, false, 'nav_search');
+            }
+            Event::handle('EndPrimaryNav', array($action));
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Menu for login
+     *
+     * If we're in openidOnly mode, we disable the menu for all other login.
+     *
+     * @param Action $action Action being executed
+     *
+     * @return boolean hook return
+     */
+    function onStartLoginGroupNav($action)
+    {
+        if (common_config('site', 'openidonly')) {
+            $this->showOpenIDLoginTab($action);
+            // Even though we replace this code, we
+            // DON'T run the End* hook, to keep others from
+            // adding tabs. Not nice, but.
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Menu item for login
+     *
+     * @param Action $action Action being executed
+     *
+     * @return boolean hook return
+     */
+    function onEndLoginGroupNav($action)
+    {
+        $this->showOpenIDLoginTab($action);
+
+        return true;
+    }
+
+    /**
+     * Show menu item for login
+     *
+     * @param Action $action Action being executed
+     *
+     * @return void
+     */
+    function showOpenIDLoginTab($action)
     {
         $action_name = $action->trimmed('action');
 
         $action->menuItem(common_local_url('openidlogin'),
-                          _('OpenID'),
-                          _('Login or register with OpenID'),
+                          // TRANS: OpenID plugin menu item on site logon page.
+                          _m('MENU', 'OpenID'),
+                          // TRANS: OpenID plugin tooltip for logon menu item.
+                          _m('Login or register with OpenID'),
                           $action_name === 'openidlogin');
+    }
 
+    /**
+     * Show menu item for password
+     *
+     * We hide it in openID-only mode
+     *
+     * @param Action $menu    Widget for menu
+     * @param void   &$unused Unused value
+     *
+     * @return void
+     */
+    function onStartAccountSettingsPasswordMenuItem($menu, &$unused) {
+        if (common_config('site', 'openidonly')) {
+            return false;
+        }
         return true;
     }
 
-    function onEndAccountSettingsNav(&$action)
+    /**
+     * Menu item for OpenID settings
+     *
+     * @param Action $action Action being executed
+     *
+     * @return boolean hook return
+     */
+    function onEndAccountSettingsNav($action)
     {
         $action_name = $action->trimmed('action');
 
         $action->menuItem(common_local_url('openidsettings'),
-                          _('OpenID'),
-                          _('Add or remove OpenIDs'),
+                          // TRANS: OpenID plugin menu item on user settings page.
+                          _m('MENU', 'OpenID'),
+                          // TRANS: OpenID plugin tooltip for user settings menu item.
+                          _m('Add or remove OpenIDs'),
                           $action_name === 'openidsettings');
 
         return true;
     }
 
+    /**
+     * Autoloader
+     *
+     * Loads our classes if they're requested.
+     *
+     * @param string $cls Class requested
+     *
+     * @return boolean hook return
+     */
     function onAutoload($cls)
     {
         switch ($cls)
         {
-         case 'OpenidloginAction':
-         case 'FinishopenidloginAction':
-         case 'FinishaddopenidAction':
-         case 'XrdsAction':
-         case 'PublicxrdsAction':
-         case 'OpenidsettingsAction':
-         case 'OpenidserverAction':
-         case 'OpenidtrustAction':
-            require_once(INSTALLDIR.'/plugins/OpenID/' . strtolower(mb_substr($cls, 0, -6)) . '.php');
+        case 'OpenidloginAction':
+        case 'FinishopenidloginAction':
+        case 'FinishaddopenidAction':
+        case 'XrdsAction':
+        case 'PublicxrdsAction':
+        case 'OpenidsettingsAction':
+        case 'OpenidserverAction':
+        case 'OpenidtrustAction':
+        case 'OpenidadminpanelAction':
+            require_once dirname(__FILE__) . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
             return false;
-         case 'User_openid':
-            require_once(INSTALLDIR.'/plugins/OpenID/User_openid.php');
+        case 'User_openid':
+            require_once dirname(__FILE__) . '/User_openid.php';
             return false;
-         case 'User_openid_trustroot':
-            require_once(INSTALLDIR.'/plugins/OpenID/User_openid_trustroot.php');
+        case 'User_openid_trustroot':
+            require_once dirname(__FILE__) . '/User_openid_trustroot.php';
             return false;
-         default:
+        case 'Auth_OpenID_TeamsExtension':
+        case 'Auth_OpenID_TeamsRequest':
+        case 'Auth_OpenID_TeamsResponse':
+            require_once dirname(__FILE__) . '/extlib/teams-extension.php';
+            return false;
+        default:
             return true;
         }
     }
 
+    /**
+     * Sensitive actions
+     *
+     * These actions should use https when SSL support is 'sometimes'
+     *
+     * @param Action  $action Action to form an URL for
+     * @param boolean &$ssl   Whether to mark it for SSL
+     *
+     * @return boolean hook return
+     */
     function onSensitiveAction($action, &$ssl)
     {
         switch ($action)
         {
-         case 'finishopenidlogin':
-         case 'finishaddopenid':
+        case 'finishopenidlogin':
+        case 'finishaddopenid':
             $ssl = true;
             return false;
-         default:
+        default:
             return true;
         }
     }
 
+    /**
+     * Login actions
+     *
+     * These actions should be visible even when the site is marked private
+     *
+     * @param Action  $action Action to show
+     * @param boolean &$login Whether it's a login action
+     *
+     * @return boolean hook return
+     */
     function onLoginAction($action, &$login)
     {
         switch ($action)
         {
-         case 'openidlogin':
-         case 'finishopenidlogin':
-         case 'openidserver':
+        case 'openidlogin':
+        case 'finishopenidlogin':
+        case 'openidserver':
             $login = true;
             return false;
-         default:
+        default:
             return true;
         }
     }
 
     /**
-     * We include a <meta> element linking to the publicxrds page, for OpenID
+     * We include a <meta> element linking to the userxrds page, for OpenID
      * client-side authentication.
      *
+     * @param Action $action Action being shown
+     *
      * @return void
      */
-
     function onEndShowHeadElements($action)
     {
-        if($action instanceof ShowstreamAction){
+        if ($action instanceof ShowstreamAction) {
             $action->element('link', array('rel' => 'openid2.provider',
                                            'href' => common_local_url('openidserver')));
             $action->element('link', array('rel' => 'openid2.local_id',
@@ -216,35 +449,49 @@ class OpenIDPlugin extends Plugin
     /**
      * Redirect to OpenID login if they have an OpenID
      *
+     * @param Action $action Action being executed
+     * @param User   $user   User doing the action
+     *
      * @return boolean whether to continue
      */
-
     function onRedirectToLogin($action, $user)
     {
-        if (!empty($user) && User_openid::hasOpenID($user->id)) {
+        if (common_config('site', 'openid_only') || (!empty($user) && User_openid::hasOpenID($user->id))) {
             common_redirect(common_local_url('openidlogin'), 303);
             return false;
         }
         return true;
     }
 
+    /**
+     * Show some extra instructions for using OpenID
+     *
+     * @param Action $action Action being executed
+     *
+     * @return boolean hook value
+     */
     function onEndShowPageNotice($action)
     {
         $name = $action->trimmed('action');
 
         switch ($name)
         {
-         case 'register':
-            $instr = '(Have an [OpenID](http://openid.net/)? ' .
-              'Try our [OpenID registration]'.
-              '(%%action.openidlogin%%)!)';
+        case 'register':
+            if (common_logged_in()) {
+                $instr = '(Have an [OpenID](http://openid.net/)? ' .
+                  '[Add an OpenID to your account](%%action.openidsettings%%)!';
+            } else {
+                $instr = '(Have an [OpenID](http://openid.net/)? ' .
+                  'Try our [OpenID registration]'.
+                  '(%%action.openidlogin%%)!)';
+            }
             break;
-         case 'login':
+        case 'login':
             $instr = '(Have an [OpenID](http://openid.net/)? ' .
               'Try our [OpenID login]'.
               '(%%action.openidlogin%%)!)';
             break;
-         default:
+        default:
             return true;
         }
 
@@ -253,13 +500,20 @@ class OpenIDPlugin extends Plugin
         return true;
     }
 
+    /**
+     * Load our document if requested
+     *
+     * @param string &$title  Title to fetch
+     * @param string &$output HTML to output
+     *
+     * @return boolean hook value
+     */
     function onStartLoadDoc(&$title, &$output)
     {
-        if ($title == 'openid')
-        {
+        if ($title == 'openid') {
             $filename = INSTALLDIR.'/plugins/OpenID/doc-src/openid';
 
-            $c = file_get_contents($filename);
+            $c      = file_get_contents($filename);
             $output = common_markup_to_html($c);
             return false; // success!
         }
@@ -267,10 +521,17 @@ class OpenIDPlugin extends Plugin
         return true;
     }
 
+    /**
+     * Add our document to the global menu
+     *
+     * @param string $title   Title being fetched
+     * @param string &$output HTML being output
+     *
+     * @return boolean hook value
+     */
     function onEndLoadDoc($title, &$output)
     {
-        if ($title == 'help')
-        {
+        if ($title == 'help') {
             $menuitem = '* [OpenID](%%doc.openid%%) - what OpenID is and how to use it with this service';
 
             $output .= common_markup_to_html($menuitem);
@@ -279,17 +540,246 @@ class OpenIDPlugin extends Plugin
         return true;
     }
 
-    function onCheckSchema() {
+    /**
+     * Data definitions
+     *
+     * Assure that our data objects are available in the DB
+     *
+     * @return boolean hook value
+     */
+    function onCheckSchema()
+    {
         $schema = Schema::get();
-        $schema->ensureDataObject(User_openid);
-        $schema->ensureDataObject(User_openid_trustroot);
+        $schema->ensureTable('user_openid',
+                             array(new ColumnDef('canonical', 'varchar',
+                                                 '255', false, 'PRI'),
+                                   new ColumnDef('display', 'varchar',
+                                                 '255', false, 'UNI'),
+                                   new ColumnDef('user_id', 'integer',
+                                                 null, false, 'MUL'),
+                                   new ColumnDef('created', 'datetime',
+                                                 null, false),
+                                   new ColumnDef('modified', 'timestamp')));
+        $schema->ensureTable('user_openid_trustroot',
+                             array(new ColumnDef('trustroot', 'varchar',
+                                                 '255', false, 'PRI'),
+                                   new ColumnDef('user_id', 'integer',
+                                                 null, false, 'PRI'),
+                                   new ColumnDef('created', 'datetime',
+                                                 null, false),
+                                   new ColumnDef('modified', 'timestamp')));
         return true;
     }
 
+    /**
+     * Add our tables to be deleted when a user is deleted
+     *
+     * @param User  $user    User being deleted
+     * @param array &$tables Array of table names
+     *
+     * @return boolean hook value
+     */
     function onUserDeleteRelated($user, &$tables)
     {
         $tables[] = 'User_openid';
         $tables[] = 'User_openid_trustroot';
         return true;
     }
+
+    /**
+     * Add an OpenID tab to the admin panel
+     *
+     * @param Widget $nav Admin panel nav
+     *
+     * @return boolean hook value
+     */
+    function onEndAdminPanelNav($nav)
+    {
+        if (AdminPanelAction::canAdmin('openid')) {
+
+            $action_name = $nav->action->trimmed('action');
+
+            $nav->out->menuItem(
+                common_local_url('openidadminpanel'),
+                // TRANS: OpenID configuration menu item.
+                _m('MENU','OpenID'),
+                // TRANS: Tooltip for OpenID configuration menu item.
+                _m('OpenID configuration'),
+                $action_name == 'openidadminpanel',
+                'nav_openid_admin_panel'
+            );
+        }
+
+        return true;
+    }
+
+    /**
+     * Add OpenID information to the Account Management Control Document
+     * Event supplied by the Account Manager plugin
+     *
+     * @param array &$amcd Array that expresses the AMCD
+     *
+     * @return boolean hook value
+     */
+
+    function onEndAccountManagementControlDocument(&$amcd)
+    {
+        $amcd['auth-methods']['openid'] = array(
+            'connect' => array(
+                'method' => 'POST',
+                'path' => common_local_url('openidlogin'),
+                'params' => array(
+                    'identity' => 'openid_url'
+                )
+            )
+        );
+    }
+
+    /**
+     * Add our version information to output
+     *
+     * @param array &$versions Array of version-data arrays
+     *
+     * @return boolean hook value
+     */
+    function onPluginVersion(&$versions)
+    {
+        $versions[] = array('name' => 'OpenID',
+                            'version' => STATUSNET_VERSION,
+                            'author' => 'Evan Prodromou, Craig Andrews',
+                            'homepage' => 'http://status.net/wiki/Plugin:OpenID',
+                            'rawdescription' =>
+                            // TRANS: OpenID plugin description.
+                            _m('Use <a href="http://openid.net/">OpenID</a> to login to the site.'));
+        return true;
+    }
+
+    function onStartOAuthLoginForm($action, &$button)
+    {
+        if (common_config('site', 'openidonly')) {
+            // Cancel the regular password login form, we won't need it.
+            $this->showOAuthLoginForm($action);
+            // TRANS: button label for OAuth authorization page when needing OpenID authentication first.
+            $button = _m('BUTTON', 'Continue');
+            return false;
+        } else {
+            // Leave the regular password login form in place.
+            // We'll add an OpenID link at bottom...?
+            return true;
+        }
+    }
+
+    /**
+     * @fixme merge with common code for main OpenID login form
+     * @param HTMLOutputter $action
+     */
+    protected function showOAuthLoginForm($action)
+    {
+        $action->elementStart('fieldset');
+        // TRANS: OpenID plugin logon form legend.
+        $action->element('legend', null, _m('OpenID login'));
+
+        $action->elementStart('ul', 'form_data');
+        $action->elementStart('li');
+        $provider = common_config('openid', 'trusted_provider');
+        $appendUsername = common_config('openid', 'append_username');
+        if ($provider) {
+            // TRANS: Field label.
+            $action->element('label', array(), _m('OpenID provider'));
+            $action->element('span', array(), $provider);
+            if ($appendUsername) {
+                $action->element('input', array('id' => 'openid_username',
+                                              'name' => 'openid_username',
+                                              'style' => 'float: none'));
+            }
+            $action->element('p', 'form_guide',
+                           // TRANS: Form guide.
+                           ($appendUsername ? _m('Enter your username.') . ' ' : '') .
+                           // TRANS: Form guide.
+                           _m('You will be sent to the provider\'s site for authentication.'));
+            $action->hidden('openid_url', $provider);
+        } else {
+            // TRANS: OpenID plugin logon form field label.
+            $action->input('openid_url', _m('OpenID URL'),
+                         '',
+                        // TRANS: OpenID plugin logon form field instructions.
+                         _m('Your OpenID URL'));
+        }
+        $action->elementEnd('li');
+        $action->elementEnd('ul');
+
+        $action->elementEnd('fieldset');
+    }
+
+    /**
+     * Handle a POST user credential check in apioauthauthorization.
+     * If given an OpenID URL, we'll pass us over to the regular things
+     * and then redirect back here on completion.
+     *
+     * @fixme merge with common code for main OpenID login form
+     * @param HTMLOutputter $action
+     */
+    function onStartOAuthLoginCheck($action, &$user)
+    {
+        $provider = common_config('openid', 'trusted_provider');
+        if ($provider) {
+            $openid_url = $provider;
+            if (common_config('openid', 'append_username')) {
+                $openid_url .= $action->trimmed('openid_username');
+            }
+        } else {
+            $openid_url = $action->trimmed('openid_url');
+        }
+
+        if ($openid_url) {
+            require_once dirname(__FILE__) . '/openid.php';
+            oid_assert_allowed($openid_url);
+
+            $returnto = common_local_url(
+                'ApiOauthAuthorize',
+                array(),
+                array(
+                    'oauth_token' => $action->arg('oauth_token'),
+                   'mode'        => $action->arg('mode')
+                )
+            );
+            common_set_returnto($returnto);
+
+            // This will redirect if functional...
+            $result = oid_authenticate($openid_url,
+                                       'finishopenidlogin');
+            if (is_string($result)) { # error message
+                throw new ServerException($result);
+            } else {
+                exit(0);
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Add link in user's XRD file to allow OpenID login.
+     * 
+     * This link in the XRD should let users log in with their
+     * Webfinger identity to services that support it. See
+     * http://webfinger.org/login for an example.
+     *
+     * @param XRD  &$xrd Currently-displaying XRD object
+     * @param User $user The user that it's for
+     * 
+     * @return boolean hook value (always true)
+     */
+
+    function onEndXrdActionLinks(&$xrd, $user)
+    {
+        $profile = $user->getProfile();
+       
+        if (!empty($profile)) {
+            $xrd->links[] = array('rel' => 'http://specs.openid.net/auth/2.0/provider',
+                                  'href' => $profile->profileurl);
+        }
+       
+        return true;
+    }
 }