PHP Zend_OpenId::selfUrl方法代码示例

 function HandleObjectCategories($objectCategoryIds)
 {
     global $prefs;
     $perspectivelib = TikiLib::lib('perspective');
     $current_object = current_object();
     if (!$current_object) {
         // only used on tiki objects
         return;
     }
     $descendants = $this->get_category_descendants($prefs['areas_root']);
     $objectPerspective = 0;
     if (!empty($objectCategoryIds)) {
         if (!isset($_SESSION['current_perspective'])) {
             unset($_SESSION['current_perspective']);
         }
         foreach ($objectCategoryIds as $categId) {
             // If category is inside $prefs['areas_root']
             if (in_array($categId, $descendants)) {
                 $area = $this->getAreaByCategId($categId);
                 if ($area) {
                     $objectPerspective = $area['perspectives'][0];
                     // use 1st persp
                     break;
                 }
             }
         }
         if ($objectPerspective && $objectPerspective != $_SESSION['current_perspective']) {
             $area = $this->getAreaByPerspId($_SESSION['current_perspective']);
             $objectArea = $this->getAreaByPerspId($objectPerspective);
             if ($area && !$area['share_common'] || $objectArea && $objectArea['exclusive']) {
                 $perspectivelib->set_perspective($objectPerspective, true);
                 Zend_OpenId::redirect(Zend_OpenId::selfUrl());
             }
         }
     }
     if ($objectPerspective < 1 && !empty($_SESSION['current_perspective'])) {
         // uncategorised objects
         $area = $this->getAreaByPerspId($_SESSION['current_perspective']);
         if ($area) {
             if (!$area['share_common']) {
                 $perspectivelib->set_perspective($objectPerspective, true);
                 Zend_OpenId::redirect(Zend_OpenId::selfUrl());
             }
         }
     }
 }

 /**
  * Returns an absolute URL for the given one
  *
  * @param string $url absilute or relative URL
  * @return string
  */
 public static function absoluteUrl($url)
 {
     if (empty($url)) {
         return Zend_OpenId::selfUrl();
     } else {
         if (!preg_match('|^([^:]+)://|', $url)) {
             if (preg_match('|^([^:]+)://([^:@]*(?:[:][^@]*)?@)?([^/:@?#]*)(?:[:]([^/?#]*))?(/[^?]*)?((?:[?](?:[^#]*))?(?:#.*)?)$|', Zend_OpenId::selfUrl(), $reg)) {
                 $scheme = $reg[1];
                 $auth = $reg[2];
                 $host = $reg[3];
                 $port = $reg[4];
                 $path = $reg[5];
                 $query = $reg[6];
                 if ($url[0] == '/') {
                     return $scheme . '://' . $auth . $host . (empty($port) ? '' : ':' . $port) . $url;
                 } else {
                     $dir = dirname($path);
                     return $scheme . '://' . $auth . $host . (empty($port) ? '' : ':' . $port) . (strlen($dir) > 1 ? $dir : '') . '/' . $url;
                 }
             }
         }
     }
     return $url;
 }

 /**
  * Performs check of OpenID identity.
  *
  * This is the first step of OpenID authentication process.
  * On success the function does not return (it does HTTP redirection to
  * server and exits). On failure it returns false.
  *
  * @param bool $immediate enables or disables interaction with user
  * @param string $id OpenID identity
  * @param string $returnTo HTTP URL to redirect response from server to
  * @param string $root HTTP URL to identify consumer on server
  * @param mixed $extensions extension object or array of extensions objects
  * @param Zend_Controller_Response_Abstract $response an optional response
  *  object to perform HTTP or HTML form redirection
  * @return bool
  */
 protected function _checkId($immediate, $id, $returnTo = null, $root = null, $extensions = null, Zend_Controller_Response_Abstract $response = null)
 {
     $this->_setError('');
     if (!Zend_OpenId::normalize($id)) {
         $this->_setError("Normalisation failed");
         return false;
     }
     $claimedId = $id;
     if (!$this->_discovery($id, $server, $version)) {
         $this->_setError("Discovery failed: " . $this->getError());
         return false;
     }
     if (!$this->_associate($server, $version)) {
         $this->_setError("Association failed: " . $this->getError());
         return false;
     }
     if (!$this->_getAssociation($server, $handle, $macFunc, $secret, $expires)) {
         /* Use dumb mode */
         unset($handle);
         unset($macFunc);
         unset($secret);
         unset($expires);
     }
     $params = array();
     if ($version >= 2.0) {
         $params['openid.ns'] = Zend_OpenId::NS_2_0;
     }
     $params['openid.mode'] = $immediate ? 'checkid_immediate' : 'checkid_setup';
     $params['openid.identity'] = $id;
     $params['openid.claimed_id'] = $claimedId;
     if ($version <= 2.0) {
         if ($this->_session !== null) {
             $this->_session->identity = $id;
             $this->_session->claimed_id = $claimedId;
         } else {
             if (defined('SID')) {
                 $_SESSION["zend_openid"] = array("identity" => $id, "claimed_id" => $claimedId);
             } else {
                 require_once "Zend/Session/Namespace.php";
                 $this->_session = new Zend_Session_Namespace("zend_openid");
                 $this->_session->identity = $id;
                 $this->_session->claimed_id = $claimedId;
             }
         }
     }
     if (isset($handle)) {
         $params['openid.assoc_handle'] = $handle;
     }
     $params['openid.return_to'] = Zend_OpenId::absoluteUrl($returnTo);
     if (empty($root)) {
         $root = Zend_OpenId::selfUrl();
         if ($root[strlen($root) - 1] != '/') {
             $root = dirname($root);
         }
     }
     if ($version >= 2.0) {
         $params['openid.realm'] = $root;
     } else {
         $params['openid.trust_root'] = $root;
     }
     if (!Zend_OpenId_Extension::forAll($extensions, 'prepareRequest', $params)) {
         $this->_setError("Extension::prepareRequest failure");
         return false;
     }
     Zend_OpenId::redirect($server, $params, $response);
     return true;
 }

 /**
  * Perepares information to send back to consumer's authentication request
  * and signs it using shared secret.
  *
  * @param float $version OpenID protcol version
  * @param array $ret arguments to be send back to consumer
  * @param array $params GET or POST request variables
  * @param mixed $extensions extension object or array of extensions objects
  * @return array
  */
 protected function _respond($version, $ret, $params, $extensions = null)
 {
     if (empty($params['openid_assoc_handle']) || !$this->_storage->getAssociation($params['openid_assoc_handle'], $macFunc, $secret, $expires)) {
         /* Use dumb mode */
         if (!empty($params['openid_assoc_handle'])) {
             $ret['openid.invalidate_handle'] = $params['openid_assoc_handle'];
         }
         $macFunc = $version >= 2.0 ? 'sha256' : 'sha1';
         $secret = $this->_genSecret($macFunc);
         $handle = uniqid();
         $expiresIn = $this->_sessionTtl;
         $this->_storage->addAssociation($handle, $macFunc, $secret, time() + $expiresIn);
         $ret['openid.assoc_handle'] = $handle;
     } else {
         $ret['openid.assoc_handle'] = $params['openid_assoc_handle'];
     }
     if (isset($params['openid_return_to'])) {
         $ret['openid.return_to'] = $params['openid_return_to'];
     }
     if (isset($params['openid_claimed_id'])) {
         $ret['openid.claimed_id'] = $params['openid_claimed_id'];
     }
     if (isset($params['openid_identity'])) {
         $ret['openid.identity'] = $params['openid_identity'];
     }
     if ($version >= 2.0) {
         if (!empty($this->_opEndpoint)) {
             $ret['openid.op_endpoint'] = $this->_opEndpoint;
         } else {
             $ret['openid.op_endpoint'] = Zend_OpenId::selfUrl();
         }
     }
     $ret['openid.response_nonce'] = gmdate('Y-m-d\\TH:i:s\\Z') . uniqid();
     $ret['openid.mode'] = 'id_res';
     Zend_OpenId_Extension::forAll($extensions, 'prepareResponse', $ret);
     $signed = '';
     $data = '';
     foreach ($ret as $key => $val) {
         if (strpos($key, 'openid.') === 0) {
             $key = substr($key, strlen('openid.'));
             if (!empty($signed)) {
                 $signed .= ',';
             }
             $signed .= $key;
             $data .= $key . ':' . $val . "\n";
         }
     }
     $signed .= ',signed';
     $data .= 'signed:' . $signed . "\n";
     $ret['openid.signed'] = $signed;
     $ret['openid.sig'] = base64_encode(Zend_OpenId::hashHmac($macFunc, $data, $secret));
     return $ret;
 }

 /**
  * handle all kinds of openId requests
  * 
  * @return void
  */
 public function openId()
 {
     Tinebase_Core::startCoreSession();
     $server = new Tinebase_OpenId_Provider(null, null, new Tinebase_OpenId_Provider_User_Tine20(), new Tinebase_OpenId_Provider_Storage());
     $server->setOpEndpoint(dirname(Zend_OpenId::selfUrl()) . '/index.php?method=Tinebase.openId');
     // handle openId login form
     if (isset($_POST['openid_action']) && $_POST['openid_action'] === 'login') {
         $server->login($_POST['openid_identifier'], $_POST['password'], $_POST['username']);
         unset($_GET['openid_action']);
         $this->_setJsonKeyCookie();
         Zend_OpenId::redirect(dirname(Zend_OpenId::selfUrl()) . '/index.php', $_GET);
         // display openId login form
     } else {
         if (isset($_GET['openid_action']) && $_GET['openid_action'] === 'login') {
             $view = new Zend_View();
             $view->setScriptPath('Tinebase/views');
             $view->openIdIdentity = $_GET['openid_identity'];
             $view->loginName = $_GET['openid_identity'];
             header('Content-Type: text/html; charset=utf-8');
             echo $view->render('openidLogin.php');
             // handle openId trust form
         } else {
             if (isset($_POST['openid_action']) && $_POST['openid_action'] === 'trust') {
                 if (isset($_POST['allow'])) {
                     if (isset($_POST['forever'])) {
                         $server->allowSite($server->getSiteRoot($_GET));
                     }
                     $server->respondToConsumer($_GET);
                 } else {
                     if (isset($_POST['deny'])) {
                         if (isset($_POST['forever'])) {
                             $server->denySite($server->getSiteRoot($_GET));
                         }
                         Zend_OpenId::redirect($_GET['openid_return_to'], array('openid.mode' => 'cancel'));
                     }
                 }
                 // display openId trust form
             } else {
                 if (isset($_GET['openid_action']) && $_GET['openid_action'] === 'trust') {
                     if (Tinebase_Core::isLogLevel(Zend_Log::DEBUG)) {
                         Tinebase_Core::getLogger()->debug(__METHOD__ . '::' . __LINE__ . " Display openId trust screen");
                     }
                     $view = new Zend_View();
                     $view->setScriptPath('Tinebase/views');
                     $view->openIdConsumer = $server->getSiteRoot($_GET);
                     $view->openIdIdentity = $server->getLoggedInUser();
                     header('Content-Type: text/html; charset=utf-8');
                     echo $view->render('openidTrust.php');
                     // handle all other openId requests
                 } else {
                     $result = $server->handle();
                     if (is_string($result)) {
                         echo $result;
                     } elseif ($result !== true) {
                         header('HTTP/1.0 403 Forbidden');
                         return;
                     }
                 }
             }
         }
     }
 }

    /**
     * testing testSelfUrl
     *
     */
    public function testSelfUrl()
    {
        unset($_SERVER['SCRIPT_URI']);
        unset($_SERVER['HTTPS']);
        unset($_SERVER['HTTP_HOST']);
        unset($_SERVER['SERVER_NAME']);
        unset($_SERVER['SERVER_PORT']);
        unset($_SERVER['SCRIPT_URL']);
        unset($_SERVER['REDIRECT_URL']);
        unset($_SERVER['PHP_SELF']);
        unset($_SERVER['SCRIPT_NAME']);
        unset($_SERVER['PATH_INFO']);
        $this->assertSame( 'http://', Zend_OpenId::selfUrl() );

        $_SERVER['SCRIPT_URI'] = "http://www.test.com/";
        $this->assertSame( 'http://www.test.com/', Zend_OpenId::selfUrl() );

        unset($_SERVER['SCRIPT_URI']);
        $_SERVER['HTTP_HOST'] = "www.test.com";
        $_SERVER['SERVER_NAME'] = "www.wrong.com";
        $this->assertSame( 'http://www.test.com', Zend_OpenId::selfUrl() );

        $_SERVER['HTTP_HOST'] = "www.test.com:80";
        $this->assertSame( 'http://www.test.com', Zend_OpenId::selfUrl() );

        $_SERVER['HTTP_HOST'] = "www.test.com:8080";
        $this->assertSame( 'http://www.test.com:8080', Zend_OpenId::selfUrl() );

        $_SERVER['HTTP_HOST'] = "www.test.com";
        $_SERVER['SERVER_PORT'] = "80";
        $this->assertSame( 'http://www.test.com', Zend_OpenId::selfUrl() );

        $_SERVER['SERVER_PORT'] = "8080";
        $this->assertSame( 'http://www.test.com:8080', Zend_OpenId::selfUrl() );

        unset($_SERVER['HTTP_HOST']);
        unset($_SERVER['SERVER_PORT']);
        $_SERVER['SERVER_NAME'] = "www.test.com";
        $this->assertSame( 'http://www.test.com', Zend_OpenId::selfUrl() );

        $_SERVER['SERVER_PORT'] = "80";
        $this->assertSame( 'http://www.test.com', Zend_OpenId::selfUrl() );

        $_SERVER['SERVER_PORT'] = "8080";
        $this->assertSame( 'http://www.test.com:8080', Zend_OpenId::selfUrl() );

        unset($_SERVER['SERVER_PORT']);
        $_SERVER['HTTPS'] = "on";
        $this->assertSame( 'https://www.test.com', Zend_OpenId::selfUrl() );

        $_SERVER['SERVER_PORT'] = "443";
        $this->assertSame( 'https://www.test.com', Zend_OpenId::selfUrl() );

        $_SERVER['SERVER_PORT'] = "8080";
        $this->assertSame( 'https://www.test.com:8080', Zend_OpenId::selfUrl() );

        unset($_SERVER['SERVER_PORT']);
        unset($_SERVER['HTTPS']);

        $_SERVER['SCRIPT_URL'] = '/test.php';
        $_SERVER['PHP_SELF'] = '/bug.php';
        $_SERVER['SCRIPT_NAME'] = '/bug.php';
        $_SERVER['PATH_INFO'] = '/bug';
        $this->assertSame( 'http://www.test.com/test.php', Zend_OpenId::selfUrl() );

        unset($_SERVER['SCRIPT_URL']);
        $_SERVER['REDIRECT_URL'] = '/ok';
        $_SERVER['PHP_SELF'] = '/bug.php';
        $_SERVER['SCRIPT_NAME'] = '/bug.php';
        $_SERVER['PATH_INFO'] = '/bug';
        $this->assertSame( 'http://www.test.com/ok', Zend_OpenId::selfUrl() );

        unset($_SERVER['REDIRECT_URL']);
        $_SERVER['PHP_SELF'] = '/test.php';
        $this->assertSame( 'http://www.test.com/test.php', Zend_OpenId::selfUrl() );

        unset($_SERVER['PHP_SELF']);
        $_SERVER['SCRIPT_NAME'] = '/test.php';
        $_SERVER['PATH_INFO'] = '/ok';
        $this->assertSame( 'http://www.test.com/test.php/ok', Zend_OpenId::selfUrl() );

        unset($_SERVER['PATH_INFO']);
        $this->assertSame( 'http://www.test.com/test.php', Zend_OpenId::selfUrl() );
    }

 /**
  * testing setSelfUrl
  *
  */
 public function testSetSelfUrl()
 {
     unset($_SERVER['SCRIPT_URI']);
     unset($_SERVER['HTTPS']);
     unset($_SERVER['HTTP_HOST']);
     unset($_SERVER['SERVER_NAME']);
     unset($_SERVER['SERVER_PORT']);
     unset($_SERVER['SCRIPT_URL']);
     unset($_SERVER['REDIRECT_URL']);
     unset($_SERVER['PHP_SELF']);
     unset($_SERVER['SCRIPT_NAME']);
     unset($_SERVER['PATH_INFO']);
     $_SERVER['SCRIPT_URI'] = "http://www.test.com/";
     $this->assertSame('http://www.test.com/', Zend_OpenId::selfUrl());
     $this->assertSame(null, Zend_OpenId::setSelfUrl("http://localhost/test"));
     $this->assertSame("http://localhost/test", Zend_OpenId::selfUrl());
     $this->assertSame("http://localhost/test", Zend_OpenId::setSelfUrl());
     $this->assertSame('http://www.test.com/', Zend_OpenId::selfUrl());
     $this->assertSame(null, Zend_OpenId::setSelfUrl());
     $this->assertSame('http://www.test.com/', Zend_OpenId::selfUrl());
 }

echo Zend_OpenId::selfUrl();
?>
"
    method="post" onsubmit="this.login.disabled=true;">
<fieldset id="openid">
<legend>OpenID Login</legend>
<input type="hidden" name="openid_action" value="login">
<div>
<input type="text" name="openid_identifier" class="openid_login" value="<?php 
echo $id;
?>
">
<input type="submit" name="login" value="login">
<table border="0" cellpadding="2" cellspacing="2">
<tr><td>&nbsp;</td><td>requird</td><td>optional</td><td>none</td><td>&nbsp</td></tr>
<?php 
echo "{$sreg_html}<br>\n";
?>
</table>
<br>
<a href="<?php 
echo dirname(Zend_OpenId::selfUrl());
?>
/test_server.php?openid.action=register">register</a>
</div>
</fieldset>
</form>
</div>
</body>
</html>

 /**
  * Performs check of OpenID identity.
  *
  * This is the first step of OpenID authentication process.
  * On success the function does not return (it does HTTP redirection to
  * server and exits). On failure it returns false.
  *
  * @param bool $immediate enables or disables interaction with user
  * @param string $id OpenID identity
  * @param string $returnTo HTTP URL to redirect response from server to
  * @param string $root HTTP URL to identify consumer on server
  * @param mixed $extensions extension object or array of extensions objects
  * @param Zend_Controller_Response_Abstract $response an optional response
  *  object to perform HTTP or HTML form redirection
  * @return bool
  */
 protected function _checkId($immediate, $id, $returnTo = null, $root = null, $extensions = null, Zend_Controller_Response_Abstract $response = null)
 {
     if (!Zend_OpenId::normalize($id)) {
         return false;
     }
     $claimedId = $id;
     if (!$this->_discovery($id, $server, $version)) {
         return false;
     }
     if (!$this->_associate($server, $version)) {
         return false;
     }
     if (!$this->_getAssociation($server, $handle, $macFunc, $secret, $expires)) {
         /* Use dumb mode */
         unset($handle);
         unset($macFunc);
         unset($secret);
         unset($expires);
     }
     $params = array();
     if ($version >= 2.0) {
         $params['openid.ns'] = Zend_OpenId::NS_2_0;
     }
     $params['openid.mode'] = $immediate ? 'checkid_immediate' : 'checkid_setup';
     $params['openid.identity'] = $id;
     $params['openid.claimed_id'] = $claimedId;
     if (isset($handle)) {
         $params['openid.assoc_handle'] = $handle;
     }
     $params['openid.return_to'] = Zend_OpenId::absoluteUrl($returnTo);
     if (empty($root)) {
         $root = dirname(Zend_OpenId::selfUrl());
     }
     if ($version >= 2.0) {
         $params['openid.realm'] = $root;
     } else {
         $params['openid.trust_root'] = $root;
     }
     if (!Zend_OpenId_Extension::forAll($extensions, 'prepareRequest', $params)) {
         return false;
     }
     Zend_OpenId::redirect($server, $params, $response);
     return true;
 }

function wikiplugin_subscribegroup($data, $params)
{
    global $tiki_p_subscribe_groups, $userlib, $user, $smarty;
    static $iSubscribeGroup = 0;
    ++$iSubscribeGroup;
    if (empty($user)) {
        return '';
    }
    if ($tiki_p_subscribe_groups != 'y') {
        return tra('Permission denied');
    }
    extract($params, EXTR_SKIP);
    if (empty($group)) {
        if (!empty($_REQUEST['group'])) {
            $group = $_REQUEST['group'];
        } else {
            return tra('Missing parameter');
        }
    }
    if ($group == 'Anonymous' || $group == 'Registered') {
        return tra('Incorrect param');
    }
    if (!($info = $userlib->get_group_info($group)) || $info['groupName'] != $group) {
        // must have the right case
        return tra('Incorrect param');
    }
    if ($info['userChoice'] != 'y') {
        return tra('Permission denied');
    }
    $groups = $userlib->get_user_groups_inclusion($user);
    $current_defgroup = $userlib->get_user_default_group($user);
    if (!empty($_REQUEST['subscribeGroup']) && !empty($_REQUEST['iSubscribeGroup']) && $_REQUEST['iSubscribeGroup'] == $iSubscribeGroup && $_REQUEST['group'] == $group) {
        if (isset($defgroup) || isset($defgroup_action) || isset($undefgroup) || isset($undefgroup_action)) {
            if ($current_defgroup == $group) {
                $new_group = !empty($undefgroup_group) ? $undefgroup_group : 'Registered';
                $userlib->set_default_group($user, $new_group);
            } else {
                if (!isset($groups[$group])) {
                    $userlib->assign_user_to_group($user, $group);
                }
                $userlib->set_default_group($user, $group);
            }
            if (!empty($params['defgroup_url']) && $params['defgroup_url'] === 'n') {
                Zend_OpenId::redirect(Zend_OpenId::selfUrl());
            } else {
                global $tikiroot;
                Zend_OpenId::redirect($tikiroot);
            }
            die;
        } else {
            if (isset($groups[$group])) {
                $userlib->remove_user_from_group($user, $group);
                unset($groups[$group]);
                if (!empty($postunsubscribe_url)) {
                    header("Location: {$postunsubscribe_url}");
                    die;
                }
            } else {
                $userlib->assign_user_to_group($user, $group);
                $groups[$group] = 'real';
                if (!empty($postsubscribe_url)) {
                    header("Location: {$postsubscribe_url}");
                    die;
                }
            }
        }
    }
    if (isset($undefgroup) || isset($undefgroup_action)) {
        if ($current_defgroup == $group) {
            $text = isset($undefgroup) ? $undefgroup : '';
            if (!isset($undefgroup_action)) {
                $undefgroup_action = tra('OK');
            }
            $smarty->assign('action', $undefgroup_action);
        } else {
            $text = isset($defgroup) ? $defgroup : '';
            if (!isset($defgroup_action)) {
                $defgroup_action = tra('OK');
            }
            $smarty->assign('action', $defgroup_action);
        }
    } else {
        if (isset($groups[$group])) {
            //user already in the group->
            if ($groups[$group] == 'included') {
                return tra('Incorrect param');
            }
            $text = isset($unsubscribe) ? $unsubscribe : tra('Unsubscribe') . '%s';
            if (!isset($unsubscribe_action)) {
                $unsubscribe_action = tra('OK');
            }
            $smarty->assign('action', $unsubscribe_action);
        } else {
            $text = isset($subscribe) ? $subscribe : tra('Subscribe') . '%s';
            if (!isset($subscribe_action)) {
                $subscribe_action = tra('OK');
            }
            $smarty->assign('action', $subscribe_action);
        }
    }
//.........这里部分代码省略.........

    color: #000;
    padding-left: 18px;
    width: 220px;
    margin-right: 10px;
}
</style>
</head>
<body>
<?php echo "$status<br>\n";?>
<div>
<form action="<?php echo Zend_OpenId::selfUrl(); ?>"
    method="post" onsubmit="this.login.disabled=true;">
<fieldset id="openid">
<legend>OpenID Login</legend>
<input type="hidden" name="openid_action" value="login">
<div>
<input type="text" name="openid_identifier" class="openid_login" value="<?php echo $id;?>">
<input type="submit" name="login" value="login">
<table border="0" cellpadding="2" cellspacing="2">
<tr><td>&nbsp;</td><td>requird</td><td>optional</td><td>none</td><td>&nbsp</td></tr>
<?php echo "$sreg_html<br>\n";?>
</table>
<br>
<a href="<?php echo dirname(Zend_OpenId::selfUrl()); ?>/test_server.php?openid.action=register">register</a>
</div>
</fieldset>
</form>
</div>
</body>
</html>

 /**
  * Performs check of OpenID identity.
  *
  * This is the first step of OpenID authentication process.
  * On success the function does not return (it does HTTP redirection to
  * server and exits). On failure it returns false.
  *
  * @param bool $immediate enables or disables interaction with user
  * @param string $id OpenID identity
  * @param string $returnTo HTTP URL to redirect response from server to
  * @param string $root HTTP URL to identify consumer on server
  * @param mixed $extensions extension object or array of extensions objects
  * @param Zend_Controller_Response_Abstract $response an optional response
  *  object to perform HTTP or HTML form redirection
  * @return bool
  */
 protected function _checkId($immediate, $id, $returnTo = null, $root = null, $extensions = null, Zend_Controller_Response_Abstract $response = null)
 {
     $this->_setError('');
     if (!Zend_OpenId::normalize($id)) {
         $this->_setError("Normalisation failed");
         return false;
     }
     $claimedId = $id;
     if (!$this->_discovery($id, $server, $version)) {
         $this->_setError("Discovery failed: " . $this->getError());
         return false;
     }
     if (!$this->_associate($server, $version)) {
         $this->_setError("Association failed: " . $this->getError());
         return false;
     }
     if (!$this->_getAssociation($server, $handle, $macFunc, $secret, $expires)) {
         /* Use dumb mode */
         unset($handle);
         unset($macFunc);
         unset($secret);
         unset($expires);
     }
     $params = array();
     if ($version >= 2.0) {
         $params['openid.ns'] = Zend_OpenId::NS_2_0;
     }
     $params['openid.mode'] = $immediate ? 'checkid_immediate' : 'checkid_setup';
     $params['openid.identity'] = $id;
     $params['openid.claimed_id'] = $claimedId;
     if ($version <= 2.0) {
         if ($this->_session !== null) {
             $this->_session->identity = $id;
             $this->_session->claimed_id = $claimedId;
             if ($server == 'https://www.google.com/accounts/o8/ud') {
                 $params['openid.identity'] = 'http://specs.openid.net/auth/2.0/identifier_select';
                 $params['openid.claimed_id'] = 'http://specs.openid.net/auth/2.0/identifier_select';
                 $params['openid.ns.ax'] = 'http://openid.net/srv/ax/1.0';
                 $params['openid.ax.mode'] = 'fetch_request';
                 $params['openid.ax.type.email'] = 'http://axschema.org/contact/email';
                 $params['openid.ax.type.country'] = 'http://axschema.org/contact/country/home';
                 $params['openid.ax.type.firstname'] = 'http://axschema.org/namePerson/first';
                 $params['openid.ax.type.lastname'] = 'http://axschema.org/namePerson/last';
                 $params['openid.ax.type.language'] = 'http://axschema.org/pref/language';
                 $params['openid.ax.required'] = 'country,firstname,email,language,lastname';
             }
         } else {
             if (defined('SID')) {
                 $_SESSION["zend_openid"] = array("identity" => $id, "claimed_id" => $claimedId);
             } else {
                 require_once "Zend/Session/Namespace.php";
                 $this->_session = new Zend_Session_Namespace("zend_openid");
                 $this->_session->identity = $id;
                 $this->_session->claimed_id = $claimedId;
             }
         }
     }
     if (isset($handle)) {
         $params['openid.assoc_handle'] = $handle;
     }
     $params['openid.return_to'] = Zend_OpenId::absoluteUrl($returnTo);
     if (empty($root)) {
         $root = Zend_OpenId::selfUrl();
         if ($root[strlen($root) - 1] != '/') {
             $root = dirname($root);
         }
     }
     if ($version >= 2.0) {
         $params['openid.realm'] = $root;
     } else {
         $params['openid.trust_root'] = $root;
     }
     if (!Zend_OpenId_Extension::forAll($extensions, 'prepareRequest', $params)) {
         $this->_setError("Extension::prepareRequest failure");
         return false;
     }
     Zend_OpenId::redirect($server, $params, $response);
     return true;
 }