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785 lines
24 KiB
785 lines
24 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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|
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namespace yii\authclient; |
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|
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use yii\base\Component; |
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use yii\base\Exception; |
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use yii\base\NotSupportedException; |
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|
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/** |
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* Class Client |
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* |
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* @see http://openid.net/ |
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* |
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* @property string $returnUrl ??? |
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* @property mixed $identity ??? |
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* @property string $trustRoot ??? |
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* @property string $realm alias of [[trustRoot]]. |
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* @property mixed $mode ??? This property is read-only. |
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* |
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* @author Paul Klimov <klimov.paul@gmail.com> |
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* @since 2.0 |
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*/ |
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class OpenId extends Component implements ClientInterface |
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{ |
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use ClientTrait; |
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/** |
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* @var array list of attributes, which should be requested from server. |
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*/ |
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public $requiredAttributes = []; |
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public $optional = []; |
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public $verify_peer; |
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public $capath; |
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public $cainfo; |
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private $_returnUrl; |
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private $_identity; |
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private $claimed_id; |
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private $_trustRoot; |
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protected $server; |
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protected $version; |
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protected $aliases; |
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protected $identifier_select = false; |
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protected $ax = false; |
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protected $sreg = false; |
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protected $data; |
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public static $axToSregMap = [ |
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'namePerson/friendly' => 'nickname', |
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'contact/email' => 'email', |
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'namePerson' => 'fullname', |
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'birthDate' => 'dob', |
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'person/gender' => 'gender', |
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'contact/postalCode/home' => 'postcode', |
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'contact/country/home' => 'country', |
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'pref/language' => 'language', |
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'pref/timezone' => 'timezone', |
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]; |
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/** |
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* @inheritdoc |
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*/ |
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public function init() |
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{ |
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$this->data = $_POST + $_GET; # OPs may send data as POST or GET. |
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} |
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public function setIdentity($value) |
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{ |
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if (strlen($value = trim((String) $value))) { |
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if (preg_match('#^xri:/*#i', $value, $m)) { |
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$value = substr($value, strlen($m[0])); |
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} elseif (!preg_match('/^(?:[=@+\$!\(]|https?:)/i', $value)) { |
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$value = "http://$value"; |
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} |
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if (preg_match('#^https?://[^/]+$#i', $value, $m)) { |
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$value .= '/'; |
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} |
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} |
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$this->_identity = $value; |
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$this->claimed_id = $value; |
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} |
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public function setReturnUrl($returnUrl) |
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{ |
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$this->_returnUrl = $returnUrl; |
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} |
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public function getReturnUrl() |
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{ |
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if ($this->_returnUrl === null) { |
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$uri = rtrim(preg_replace('#((?<=\?)|&)openid\.[^&]+#', '', $_SERVER['REQUEST_URI']), '?'); |
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$this->_returnUrl = $this->getTrustRoot() . $uri; |
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} |
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return $this->_returnUrl; |
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} |
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public function getIdentity() |
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{ |
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# We return claimed_id instead of identity, |
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# because the developer should see the claimed identifier, |
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# i.e. what he set as identity, not the op-local identifier (which is what we verify) |
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return $this->claimed_id; |
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} |
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public function setTrustRoot($value) |
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{ |
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$this->_trustRoot = trim($value); |
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} |
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public function getTrustRoot() |
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{ |
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if ($this->_trustRoot === null) { |
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$this->_trustRoot = (!empty($_SERVER['HTTPS']) ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST']; |
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} |
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return $this->_trustRoot; |
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} |
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public function setRealm($value) |
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{ |
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$this->setTrustRoot($value); |
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} |
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public function getRealm() |
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{ |
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return $this->getTrustRoot(); |
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} |
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public function getMode() |
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{ |
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return empty($this->data['openid_mode']) ? null : $this->data['openid_mode']; |
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} |
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/** |
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* Checks if the server specified in the url exists. |
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* @param string $url URL to check |
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* @return boolean true, if the server exists; false otherwise |
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*/ |
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public function hostExists($url) |
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{ |
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if (strpos($url, '/') === false) { |
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$server = $url; |
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} else { |
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$server = @parse_url($url, PHP_URL_HOST); |
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} |
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if (!$server) { |
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return false; |
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} |
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$ips = gethostbynamel($server); |
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return !empty($ips); |
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} |
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protected function sendCurlRequest($url, $method = 'GET', $params = []) |
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{ |
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$params = http_build_query($params, '', '&'); |
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$curl = curl_init($url . ($method == 'GET' && $params ? '?' . $params : '')); |
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curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); |
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curl_setopt($curl, CURLOPT_HEADER, false); |
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curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); |
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($curl, CURLOPT_HTTPHEADER, array('Accept: application/xrds+xml, */*')); |
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if ($this->verify_peer !== null) { |
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curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->verify_peer); |
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if($this->capath) { |
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curl_setopt($curl, CURLOPT_CAPATH, $this->capath); |
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} |
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if($this->cainfo) { |
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curl_setopt($curl, CURLOPT_CAINFO, $this->cainfo); |
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} |
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} |
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if ($method == 'POST') { |
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curl_setopt($curl, CURLOPT_POST, true); |
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curl_setopt($curl, CURLOPT_POSTFIELDS, $params); |
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} elseif ($method == 'HEAD') { |
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curl_setopt($curl, CURLOPT_HEADER, true); |
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curl_setopt($curl, CURLOPT_NOBODY, true); |
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} else { |
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curl_setopt($curl, CURLOPT_HTTPGET, true); |
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} |
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$response = curl_exec($curl); |
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if ($method == 'HEAD') { |
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$headers = []; |
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foreach (explode("\n", $response) as $header) { |
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$pos = strpos($header,':'); |
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$name = strtolower(trim(substr($header, 0, $pos))); |
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$headers[$name] = trim(substr($header, $pos+1)); |
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} |
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# Updating claimed_id in case of redirections. |
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$effective_url = curl_getinfo($curl, CURLINFO_EFFECTIVE_URL); |
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if ($effective_url != $url) { |
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$this->identity = $this->claimed_id = $effective_url; |
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} |
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return $headers; |
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} |
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if (curl_errno($curl)) { |
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throw new Exception(curl_error($curl), curl_errno($curl)); |
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} |
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return $response; |
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} |
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protected function sendStreamRequest($url, $method = 'GET', $params = []) |
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{ |
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if (!$this->hostExists($url)) { |
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throw new Exception('Invalid request.'); |
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} |
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$params = http_build_query($params, '', '&'); |
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switch ($method) { |
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case 'GET': |
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$options = [ |
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'http' => [ |
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'method' => 'GET', |
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'header' => 'Accept: application/xrds+xml, */*', |
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'ignore_errors' => true, |
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] |
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]; |
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$url = $url . ($params ? '?' . $params : ''); |
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break; |
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case 'POST': |
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$options = [ |
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'http' => [ |
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'method' => 'POST', |
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'header' => 'Content-type: application/x-www-form-urlencoded', |
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'content' => $params, |
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'ignore_errors' => true, |
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] |
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]; |
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break; |
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case 'HEAD': |
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# We want to send a HEAD request, |
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# but since get_headers doesn't accept $context parameter, |
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# we have to change the defaults. |
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$default = stream_context_get_options(stream_context_get_default()); |
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stream_context_get_default([ |
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'http' => [ |
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'method' => 'HEAD', |
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'header' => 'Accept: application/xrds+xml, */*', |
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'ignore_errors' => true, |
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] |
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]); |
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$url = $url . ($params ? '?' . $params : ''); |
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$headers_tmp = get_headers($url); |
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if (!$headers_tmp) { |
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return []; |
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} |
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# Parsing headers. |
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$headers = []; |
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foreach ($headers_tmp as $header) { |
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$pos = strpos($header, ':'); |
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$name = strtolower(trim(substr($header, 0, $pos))); |
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$headers[$name] = trim(substr($header, $pos+1)); |
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# Following possible redirections. The point is just to have |
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# claimed_id change with them, because get_headers() will |
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# follow redirections automatically. |
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# We ignore redirections with relative paths. |
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# If any known provider uses them, file a bug report. |
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if ($name == 'location') { |
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if (strpos($headers[$name], 'http') === 0) { |
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$this->identity = $this->claimed_id = $headers[$name]; |
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} elseif($headers[$name][0] == '/') { |
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$parsed_url = parse_url($this->claimed_id); |
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$this->identity = |
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$this->claimed_id = $parsed_url['scheme'] . '://' |
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. $parsed_url['host'] |
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. $headers[$name]; |
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} |
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} |
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} |
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# And restore them. |
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stream_context_get_default($default); |
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return $headers; |
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default: |
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throw new NotSupportedException("Method {$method} not supported"); |
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} |
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if ($this->verify_peer) { |
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$options = array_merge( |
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$options, |
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[ |
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'ssl' => [ |
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'verify_peer' => true, |
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'capath' => $this->capath, |
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'cafile' => $this->cainfo, |
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] |
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] |
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); |
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} |
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$context = stream_context_create($options); |
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return file_get_contents($url, false, $context); |
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} |
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protected function sendRequest($url, $method = 'GET', $params = []) |
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{ |
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if (function_exists('curl_init') && !ini_get('safe_mode')) { |
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return $this->sendCurlRequest($url, $method, $params); |
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} |
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return $this->sendStreamRequest($url, $method, $params); |
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} |
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protected function buildUrl($url, $parts) |
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{ |
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if (isset($url['query'], $parts['query'])) { |
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$parts['query'] = $url['query'] . '&' . $parts['query']; |
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} |
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$url = $parts + $url; |
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$url = $url['scheme'] . '://' |
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. (empty($url['username']) ? '' |
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:(empty($url['password']) ? "{$url['username']}@" |
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:"{$url['username']}:{$url['password']}@")) |
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. $url['host'] |
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. (empty($url['port']) ? '' : ":{$url['port']}") |
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. (empty($url['path']) ? '' : $url['path']) |
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. (empty($url['query']) ? '' : "?{$url['query']}") |
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. (empty($url['fragment']) ? '' : "#{$url['fragment']}"); |
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return $url; |
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} |
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/** |
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* Helper function used to scan for <meta>/<link> tags and extract information |
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* from them |
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*/ |
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protected function extractHtmlTagValue($content, $tag, $attrName, $attrValue, $valueName) |
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{ |
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preg_match_all("#<{$tag}[^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*$valueName=['\"](.+?)['\"][^>]*/?>#i", $content, $matches1); |
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preg_match_all("#<{$tag}[^>]*$valueName=['\"](.+?)['\"][^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*/?>#i", $content, $matches2); |
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$result = array_merge($matches1[1], $matches2[1]); |
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return empty($result) ? false : $result[0]; |
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} |
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/** |
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* Performs Yadis and HTML discovery. Normally not used. |
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* @param string $url Identity URL. |
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* @return string OP Endpoint (i.e. OpenID provider address). |
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* @throws Exception |
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*/ |
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public function discover($url) |
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{ |
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if (!$url) { |
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throw new Exception('No identity supplied.'); |
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} |
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# Use xri.net proxy to resolve i-name identities |
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if (!preg_match('#^https?:#', $url)) { |
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$url = "https://xri.net/$url"; |
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} |
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# We save the original url in case of Yadis discovery failure. |
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# It can happen when we'll be lead to an XRDS document |
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# which does not have any OpenID2 services. |
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$originalUrl = $url; |
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# A flag to disable yadis discovery in case of failure in headers. |
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$yadis = true; |
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# We'll jump a maximum of 5 times, to avoid endless redirections. |
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for ($i = 0; $i < 5; $i ++) { |
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if ($yadis) { |
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$headers = $this->sendRequest($url, 'HEAD'); |
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$next = false; |
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if (isset($headers['x-xrds-location'])) { |
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$url = $this->buildUrl(parse_url($url), parse_url(trim($headers['x-xrds-location']))); |
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$next = true; |
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} |
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if (isset($headers['content-type']) |
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&& (strpos($headers['content-type'], 'application/xrds+xml') !== false |
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|| strpos($headers['content-type'], 'text/xml') !== false) |
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) { |
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# Apparently, some providers return XRDS documents as text/html. |
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# While it is against the spec, allowing this here shouldn't break |
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# compatibility with anything. |
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# --- |
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# Found an XRDS document, now let's find the server, and optionally delegate. |
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$content = $this->sendRequest($url, 'GET'); |
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preg_match_all('#<Service.*?>(.*?)</Service>#s', $content, $m); |
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foreach ($m[1] as $content) { |
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$content = ' ' . $content; # The space is added, so that strpos doesn't return 0. |
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# OpenID 2 |
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$ns = preg_quote('http://specs.openid.net/auth/2.0/'); |
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if (preg_match('#<Type>\s*'.$ns.'(server|signon)\s*</Type>#s', $content, $type)) { |
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if ($type[1] == 'server') { |
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$this->identifier_select = true; |
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} |
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preg_match('#<URI.*?>(.*)</URI>#', $content, $server); |
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preg_match('#<(Local|Canonical)ID>(.*)</\1ID>#', $content, $delegate); |
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if (empty($server)) { |
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return false; |
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} |
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# Does the server advertise support for either AX or SREG? |
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$this->ax = (bool) strpos($content, '<Type>http://openid.net/srv/ax/1.0</Type>'); |
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$this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>') |
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|| strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>'); |
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$server = $server[1]; |
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if (isset($delegate[2])) { |
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$this->identity = trim($delegate[2]); |
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} |
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$this->version = 2; |
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$this->server = $server; |
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return $server; |
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} |
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# OpenID 1.1 |
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$ns = preg_quote('http://openid.net/signon/1.1'); |
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if (preg_match('#<Type>\s*'.$ns.'\s*</Type>#s', $content)) { |
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preg_match('#<URI.*?>(.*)</URI>#', $content, $server); |
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preg_match('#<.*?Delegate>(.*)</.*?Delegate>#', $content, $delegate); |
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if (empty($server)) { |
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return false; |
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} |
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# AX can be used only with OpenID 2.0, so checking only SREG |
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$this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>') |
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|| strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>'); |
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$server = $server[1]; |
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if (isset($delegate[1])) { |
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$this->identity = $delegate[1]; |
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} |
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$this->version = 1; |
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$this->server = $server; |
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return $server; |
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} |
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} |
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$next = true; |
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$yadis = false; |
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$url = $originalUrl; |
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$content = null; |
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break; |
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} |
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if ($next) { |
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continue; |
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} |
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# There are no relevant information in headers, so we search the body. |
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$content = $this->sendRequest($url, 'GET'); |
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$location = $this->extractHtmlTagValue($content, 'meta', 'http-equiv', 'X-XRDS-Location', 'content'); |
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if ($location) { |
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$url = $this->buildUrl(parse_url($url), parse_url($location)); |
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continue; |
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} |
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} |
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if (!isset($content)) { |
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$content = $this->sendRequest($url, 'GET'); |
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} |
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# At this point, the YADIS Discovery has failed, so we'll switch |
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# to openid2 HTML discovery, then fallback to openid 1.1 discovery. |
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$server = $this->extractHtmlTagValue($content, 'link', 'rel', 'openid2.provider', 'href'); |
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$delegate = $this->extractHtmlTagValue($content, 'link', 'rel', 'openid2.local_id', 'href'); |
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$this->version = 2; |
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if (!$server) { |
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# The same with openid 1.1 |
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$server = $this->extractHtmlTagValue($content, 'link', 'rel', 'openid.server', 'href'); |
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$delegate = $this->extractHtmlTagValue($content, 'link', 'rel', 'openid.delegate', 'href'); |
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$this->version = 1; |
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} |
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if ($server) { |
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# We found an OpenID2 OP Endpoint |
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if ($delegate) { |
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# We have also found an OP-Local ID. |
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$this->identity = $delegate; |
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} |
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$this->server = $server; |
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return $server; |
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} |
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throw new Exception('No servers found!'); |
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} |
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throw new Exception('Endless redirection!'); |
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} |
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protected function sregParams() |
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{ |
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$params = []; |
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# We always use SREG 1.1, even if the server is advertising only support for 1.0. |
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# That's because it's fully backwards compatibile with 1.0, and some providers |
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# advertise 1.0 even if they accept only 1.1. One such provider is myopenid.com |
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$params['openid.ns.sreg'] = 'http://openid.net/extensions/sreg/1.1'; |
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if ($this->requiredAttributes) { |
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$params['openid.sreg.required'] = []; |
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foreach ($this->requiredAttributes as $required) { |
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if (!isset(self::$axToSregMap[$required])) { |
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continue; |
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} |
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$params['openid.sreg.required'][] = self::$axToSregMap[$required]; |
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} |
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$params['openid.sreg.required'] = implode(',', $params['openid.sreg.required']); |
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} |
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|
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if ($this->optional) { |
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$params['openid.sreg.optional'] = []; |
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foreach ($this->optional as $optional) { |
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if (!isset(self::$axToSregMap[$optional])) { |
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continue; |
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} |
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$params['openid.sreg.optional'][] = self::$axToSregMap[$optional]; |
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} |
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$params['openid.sreg.optional'] = implode(',', $params['openid.sreg.optional']); |
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} |
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return $params; |
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} |
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|
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protected function axParams() |
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{ |
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$params = []; |
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if ($this->requiredAttributes || $this->optional) { |
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$params['openid.ns.ax'] = 'http://openid.net/srv/ax/1.0'; |
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$params['openid.ax.mode'] = 'fetch_request'; |
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$this->aliases = []; |
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$counts = []; |
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$required = []; |
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$optional = []; |
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foreach (['required', 'optional'] as $type) { |
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foreach ($this->$type as $alias => $field) { |
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if (is_int($alias)) { |
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$alias = strtr($field, '/', '_'); |
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} |
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$this->aliases[$alias] = 'http://axschema.org/' . $field; |
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if (empty($counts[$alias])) { |
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$counts[$alias] = 0; |
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} |
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$counts[$alias] += 1; |
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${$type}[] = $alias; |
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} |
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} |
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foreach ($this->aliases as $alias => $ns) { |
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$params['openid.ax.type.' . $alias] = $ns; |
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} |
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foreach ($counts as $alias => $count) { |
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if ($count == 1) { |
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continue; |
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} |
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$params['openid.ax.count.' . $alias] = $count; |
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} |
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|
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# Don't send empty ax.requied and ax.if_available. |
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# Google and possibly other providers refuse to support ax when one of these is empty. |
|
if ($required) { |
|
$params['openid.ax.required'] = implode(',', $required); |
|
} |
|
if ($optional) { |
|
$params['openid.ax.if_available'] = implode(',', $optional); |
|
} |
|
} |
|
return $params; |
|
} |
|
|
|
protected function authUrlV1() |
|
{ |
|
$returnUrl = $this->returnUrl; |
|
# If we have an openid.delegate that is different from our claimed id, |
|
# we need to somehow preserve the claimed id between requests. |
|
# The simplest way is to just send it along with the return_to url. |
|
if ($this->identity != $this->claimed_id) { |
|
$returnUrl .= (strpos($returnUrl, '?') ? '&' : '?') . 'openid.claimed_id=' . $this->claimed_id; |
|
} |
|
|
|
$params = array_merge( |
|
$this->sregParams(), |
|
[ |
|
'openid.return_to' => $returnUrl, |
|
'openid.mode' => 'checkid_setup', |
|
'openid.identity' => $this->identity, |
|
'openid.trust_root' => $this->trustRoot, |
|
] |
|
); |
|
|
|
return $this->buildUrl(parse_url($this->server), ['query' => http_build_query($params, '', '&')]); |
|
} |
|
|
|
protected function authUrlV2($identifierSelect) |
|
{ |
|
$params = [ |
|
'openid.ns' => 'http://specs.openid.net/auth/2.0', |
|
'openid.mode' => 'checkid_setup', |
|
'openid.return_to' => $this->returnUrl, |
|
'openid.realm' => $this->trustRoot, |
|
]; |
|
if ($this->ax) { |
|
$params = array_merge($this->axParams(), $params); |
|
} |
|
if ($this->sreg) { |
|
$params = array_merge($this->sregParams(), $params); |
|
} |
|
if (!$this->ax && !$this->sreg) { |
|
# If OP doesn't advertise either SREG, nor AX, let's send them both |
|
# in worst case we don't get anything in return. |
|
$params = array_merge($this->sregParams(), $this->axParams(), $params); |
|
} |
|
|
|
if ($identifierSelect) { |
|
$url = 'http://specs.openid.net/auth/2.0/identifier_select'; |
|
$params['openid.identity'] = $url; |
|
$params['openid.claimed_id']= $url; |
|
} else { |
|
$params['openid.identity'] = $this->identity; |
|
$params['openid.claimed_id'] = $this->claimed_id; |
|
} |
|
|
|
return $this->buildUrl(parse_url($this->server), ['query' => http_build_query($params, '', '&')]); |
|
} |
|
|
|
/** |
|
* Returns authentication URL. Usually, you want to redirect your user to it. |
|
* @param string $identifier_select Whether to request OP to select identity for an user in OpenID 2. Does not affect OpenID 1. |
|
* @return string the authentication URL. |
|
* @throws Exception |
|
*/ |
|
public function authUrl($identifier_select = null) |
|
{ |
|
if (!$this->server) { |
|
$this->discover($this->identity); |
|
} |
|
if ($this->version == 2) { |
|
if ($identifier_select === null) { |
|
return $this->authUrlV2($this->identifier_select); |
|
} |
|
return $this->authUrlV2($identifier_select); |
|
} |
|
return $this->authUrlV1(); |
|
} |
|
|
|
/** |
|
* Performs OpenID verification with the OP. |
|
* @return boolean whether the verification was successful. |
|
* @throws Exception |
|
*/ |
|
public function validate() |
|
{ |
|
$this->claimed_id = isset($this->data['openid_claimed_id']) ? $this->data['openid_claimed_id'] : $this->data['openid_identity']; |
|
$params = [ |
|
'openid.assoc_handle' => $this->data['openid_assoc_handle'], |
|
'openid.signed' => $this->data['openid_signed'], |
|
'openid.sig' => $this->data['openid_sig'], |
|
]; |
|
|
|
if (isset($this->data['openid_ns'])) { |
|
# We're dealing with an OpenID 2.0 server, so let's set an ns |
|
# Even though we should know location of the endpoint, |
|
# we still need to verify it by discovery, so $server is not set here |
|
$params['openid.ns'] = 'http://specs.openid.net/auth/2.0'; |
|
} elseif (isset($this->data['openid_claimed_id']) |
|
&& $this->data['openid_claimed_id'] != $this->data['openid_identity'] |
|
) { |
|
# If it's an OpenID 1 provider, and we've got claimed_id, |
|
# we have to append it to the returnUrl, like authUrl_v1 does. |
|
$this->returnUrl .= (strpos($this->returnUrl, '?') ? '&' : '?') |
|
. 'openid.claimed_id=' . $this->claimed_id; |
|
} |
|
|
|
if ($this->data['openid_return_to'] != $this->returnUrl) { |
|
# The return_to url must match the url of current request. |
|
# I'm assuing that noone will set the returnUrl to something that doesn't make sense. |
|
return false; |
|
} |
|
|
|
$server = $this->discover($this->claimed_id); |
|
|
|
foreach (explode(',', $this->data['openid_signed']) as $item) { |
|
# Checking whether magic_quotes_gpc is turned on, because |
|
# the function may fail if it is. For example, when fetching |
|
# AX namePerson, it might containg an apostrophe, which will be escaped. |
|
# In such case, validation would fail, since we'd send different data than OP |
|
# wants to verify. stripslashes() should solve that problem, but we can't |
|
# use it when magic_quotes is off. |
|
$value = $this->data['openid_' . str_replace('.', '_', $item)]; |
|
$params['openid.' . $item] = get_magic_quotes_gpc() ? stripslashes($value) : $value; |
|
} |
|
|
|
$params['openid.mode'] = 'check_authentication'; |
|
|
|
$response = $this->sendRequest($server, 'POST', $params); |
|
|
|
return preg_match('/is_valid\s*:\s*true/i', $response); |
|
} |
|
|
|
protected function getAxAttributes() |
|
{ |
|
$alias = null; |
|
if (isset($this->data['openid_ns_ax']) && $this->data['openid_ns_ax'] != 'http://openid.net/srv/ax/1.0') { |
|
# It's the most likely case, so we'll check it before |
|
$alias = 'ax'; |
|
} else { |
|
# 'ax' prefix is either undefined, or points to another extension, |
|
# so we search for another prefix |
|
foreach ($this->data as $key => $value) { |
|
if (substr($key, 0, strlen('openid_ns_')) == 'openid_ns_' && $value == 'http://openid.net/srv/ax/1.0') { |
|
$alias = substr($key, strlen('openid_ns_')); |
|
break; |
|
} |
|
} |
|
} |
|
if (!$alias) { |
|
# An alias for AX schema has not been found, |
|
# so there is no AX data in the OP's response |
|
return []; |
|
} |
|
|
|
$attributes = []; |
|
foreach ($this->data as $key => $value) { |
|
$keyMatch = 'openid_' . $alias . '_value_'; |
|
if (substr($key, 0, strlen($keyMatch)) != $keyMatch) { |
|
continue; |
|
} |
|
$key = substr($key, strlen($keyMatch)); |
|
if (!isset($this->data['openid_' . $alias . '_type_' . $key])) { |
|
# OP is breaking the spec by returning a field without |
|
# associated ns. This shouldn't happen, but it's better |
|
# to check, than cause an E_NOTICE. |
|
continue; |
|
} |
|
$key = substr($this->data['openid_' . $alias . '_type_' . $key], strlen('http://axschema.org/')); |
|
$attributes[$key] = $value; |
|
} |
|
return $attributes; |
|
} |
|
|
|
protected function getSregAttributes() |
|
{ |
|
$attributes = array(); |
|
$sregToAx = array_flip(self::$axToSregMap); |
|
foreach ($this->data as $key => $value) { |
|
$keyMatch = 'openid_sreg_'; |
|
if (substr($key, 0, strlen($keyMatch)) != $keyMatch) { |
|
continue; |
|
} |
|
$key = substr($key, strlen($keyMatch)); |
|
if (!isset($sregToAx[$key])) { |
|
# The field name isn't part of the SREG spec, so we ignore it. |
|
continue; |
|
} |
|
$attributes[$sregToAx[$key]] = $value; |
|
} |
|
return $attributes; |
|
} |
|
|
|
/** |
|
* Gets AX/SREG attributes provided by OP. should be used only after successful validaton. |
|
* Note that it does not guarantee that any of the required/optional parameters will be present, |
|
* or that there will be no other attributes besides those specified. |
|
* In other words. OP may provide whatever information it wants to. |
|
* SREG names will be mapped to AX names. |
|
* @return array array of attributes with keys being the AX schema names, e.g. 'contact/email' |
|
* @see http://www.axschema.org/types/ |
|
*/ |
|
public function getAttributes() |
|
{ |
|
if (isset($this->data['openid_ns']) && $this->data['openid_ns'] == 'http://specs.openid.net/auth/2.0') { |
|
# OpenID 2.0 |
|
# We search for both AX and SREG attributes, with AX taking precedence. |
|
return array_merge($this->getSregAttributes(), $this->getAxAttributes()); |
|
} |
|
return $this->getSregAttributes(); |
|
} |
|
} |