| <?php |
<?php |
| /** |
/** |
| * This class provides a simple interface for OpenID (1.1 and 2.0) authentication. |
* This class provides a simple interface for OpenID (1.1 and 2.0) authentication. |
| * Supports Yadis discovery. |
* Supports Yadis discovery. |
| * The authentication process is stateless/dumb. |
* The authentication process is stateless/dumb. |
| * |
* |
| * Usage: |
* Usage: |
| * Sign-on with OpenID is a two step process: |
* Sign-on with OpenID is a two step process: |
| * Step one is authentication with the provider: |
* Step one is authentication with the provider: |
| * <code> |
* <code> |
| * $openid = new LightOpenID('my-host.example.org'); |
* $openid = new LightOpenID('my-host.example.org'); |
| * $openid->identity = 'ID supplied by user'; |
* $openid->identity = 'ID supplied by user'; |
| * header('Location: ' . $openid->authUrl()); |
* header('Location: ' . $openid->authUrl()); |
| * </code> |
* </code> |
| * The provider then sends various parameters via GET, one of them is openid_mode. |
* The provider then sends various parameters via GET, one of them is openid_mode. |
| * Step two is verification: |
* Step two is verification: |
| * <code> |
* <code> |
| * if ($this->data['openid_mode']) { |
* if ($this->data['openid_mode']) { |
| * $openid = new LightOpenID('my-host.example.org'); |
* $openid = new LightOpenID('my-host.example.org'); |
| * echo $openid->validate() ? 'Logged in.' : 'Failed'; |
* echo $openid->validate() ? 'Logged in.' : 'Failed'; |
| * } |
* } |
| * </code> |
* </code> |
| * |
* |
| * Change the 'my-host.example.org' to your domain name. Do NOT use $_SERVER['HTTP_HOST'] |
* Change the 'my-host.example.org' to your domain name. Do NOT use $_SERVER['HTTP_HOST'] |
| * for that, unless you know what you are doing. |
* for that, unless you know what you are doing. |
| * |
* |
| * Optionally, you can set $returnUrl and $realm (or $trustRoot, which is an alias). |
* Optionally, you can set $returnUrl and $realm (or $trustRoot, which is an alias). |
| * The default values for those are: |
* The default values for those are: |
| * $openid->realm = (!empty($_SERVER['HTTPS']) ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST']; |
* $openid->realm = (!empty($_SERVER['HTTPS']) ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST']; |
| * $openid->returnUrl = $openid->realm . $_SERVER['REQUEST_URI']; |
* $openid->returnUrl = $openid->realm . $_SERVER['REQUEST_URI']; |
| * If you don't know their meaning, refer to any openid tutorial, or specification. Or just guess. |
* If you don't know their meaning, refer to any openid tutorial, or specification. Or just guess. |
| * |
* |
| * AX and SREG extensions are supported. |
* AX and SREG extensions are supported. |
| * To use them, specify $openid->required and/or $openid->optional before calling $openid->authUrl(). |
* To use them, specify $openid->required and/or $openid->optional before calling $openid->authUrl(). |
| * These are arrays, with values being AX schema paths (the 'path' part of the URL). |
* These are arrays, with values being AX schema paths (the 'path' part of the URL). |
| * For example: |
* For example: |
| * $openid->required = array('namePerson/friendly', 'contact/email'); |
* $openid->required = array('namePerson/friendly', 'contact/email'); |
| * $openid->optional = array('namePerson/first'); |
* $openid->optional = array('namePerson/first'); |
| * If the server supports only SREG or OpenID 1.1, these are automaticaly |
* If the server supports only SREG or OpenID 1.1, these are automaticaly |
| * mapped to SREG names, so that user doesn't have to know anything about the server. |
* mapped to SREG names, so that user doesn't have to know anything about the server. |
| * |
* |
| * To get the values, use $openid->getAttributes(). |
* To get the values, use $openid->getAttributes(). |
| * |
* |
| * |
* |
| * The library requires PHP >= 5.1.2 with curl or http/https stream wrappers enabled. |
* The library requires PHP >= 5.1.2 with curl or http/https stream wrappers enabled. |
| * @author Mewp |
* @author Mewp |
| * @copyright Copyright (c) 2010, Mewp |
* @copyright Copyright (c) 2010, Mewp |
| * @license http://www.opensource.org/licenses/mit-license.php MIT |
* @license http://www.opensource.org/licenses/mit-license.php MIT |
| */ |
*/ |
| class LightOpenID |
class LightOpenID |
| { |
{ |
| public $returnUrl |
public $returnUrl |
| , $required = array() |
, $required = array() |
| , $optional = array() |
, $optional = array() |
| , $verify_peer = null |
, $verify_peer = null |
| , $capath = null |
, $capath = null |
| , $cainfo = null |
, $cainfo = null |
| , $data; |
, $data; |
| private $identity, $claimed_id; |
private $identity, $claimed_id; |
| protected $server, $version, $trustRoot, $aliases, $identifier_select = false |
protected $server, $version, $trustRoot, $aliases, $identifier_select = false |
| , $ax = false, $sreg = false, $setup_url = null; |
, $ax = false, $sreg = false, $setup_url = null; |
| static protected $ax_to_sreg = array( |
static protected $ax_to_sreg = array( |
| 'namePerson/friendly' => 'nickname', |
'namePerson/friendly' => 'nickname', |
| 'contact/email' => 'email', |
'contact/email' => 'email', |
| 'namePerson' => 'fullname', |
'namePerson' => 'fullname', |
| 'birthDate' => 'dob', |
'birthDate' => 'dob', |
| 'person/gender' => 'gender', |
'person/gender' => 'gender', |
| 'contact/postalCode/home' => 'postcode', |
'contact/postalCode/home' => 'postcode', |
| 'contact/country/home' => 'country', |
'contact/country/home' => 'country', |
| 'pref/language' => 'language', |
'pref/language' => 'language', |
| 'pref/timezone' => 'timezone', |
'pref/timezone' => 'timezone', |
| ); |
); |
| |
|
| function __construct($host) |
function __construct($host) |
| { |
{ |
| $this->trustRoot = (strpos($host, '://') ? $host : 'http://' . $host); |
$this->trustRoot = (strpos($host, '://') ? $host : 'http://' . $host); |
| if ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') |
if ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') |
| || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) |
|| (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) |
| && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') |
&& $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') |
| ) { |
) { |
| $this->trustRoot = (strpos($host, '://') ? $host : 'https://' . $host); |
$this->trustRoot = (strpos($host, '://') ? $host : 'https://' . $host); |
| } |
} |
| |
|
| if(($host_end = strpos($this->trustRoot, '/', 8)) !== false) { |
if(($host_end = @strpos($this->trustRoot, '/', 8)) !== false) { |
| $this->trustRoot = substr($this->trustRoot, 0, $host_end); |
$this->trustRoot = substr($this->trustRoot, 0, $host_end); |
| } |
} |
| |
|
| $uri = rtrim(preg_replace('#((?<=\?)|&)openid\.[^&]+#', '', $_SERVER['REQUEST_URI']), '?'); |
$uri = rtrim(preg_replace('#((?<=\?)|&)openid\.[^&]+#', '', $_SERVER['REQUEST_URI']), '?'); |
| $this->returnUrl = $this->trustRoot . $uri; |
$this->returnUrl = $this->trustRoot . $uri; |
| |
|
| $this->data = ($_SERVER['REQUEST_METHOD'] === 'POST') ? $_POST : $_GET; |
$this->data = ($_SERVER['REQUEST_METHOD'] === 'POST') ? $_POST : $_GET; |
| |
|
| if(!function_exists('curl_init') && !in_array('https', stream_get_wrappers())) { |
if(!function_exists('curl_init') && !in_array('https', stream_get_wrappers())) { |
| throw new ErrorException('You must have either https wrappers or curl enabled.'); |
throw new ErrorException('You must have either https wrappers or curl enabled.'); |
| } |
} |
| } |
} |
| |
|
| function __set($name, $value) |
function __set($name, $value) |
| { |
{ |
| switch ($name) { |
switch ($name) { |
| case 'identity': |
case 'identity': |
| if (strlen($value = trim((String) $value))) { |
if (strlen($value = trim((String) $value))) { |
| if (preg_match('#^xri:/*#i', $value, $m)) { |
if (preg_match('#^xri:/*#i', $value, $m)) { |
| $value = substr($value, strlen($m[0])); |
$value = substr($value, strlen($m[0])); |
| } elseif (!preg_match('/^(?:[=@+\$!\(]|https?:)/i', $value)) { |
} elseif (!preg_match('/^(?:[=@+\$!\(]|https?:)/i', $value)) { |
| $value = "http://$value"; |
$value = "http://$value"; |
| } |
} |
| if (preg_match('#^https?://[^/]+$#i', $value, $m)) { |
if (preg_match('#^https?://[^/]+$#i', $value, $m)) { |
| $value .= '/'; |
$value .= '/'; |
| } |
} |
| } |
} |
| $this->$name = $this->claimed_id = $value; |
$this->$name = $this->claimed_id = $value; |
| break; |
break; |
| case 'trustRoot': |
case 'trustRoot': |
| case 'realm': |
case 'realm': |
| $this->trustRoot = trim($value); |
$this->trustRoot = trim($value); |
| } |
} |
| } |
} |
| |
|
| function __get($name) |
function __get($name) |
| { |
{ |
| switch ($name) { |
switch ($name) { |
| case 'identity': |
case 'identity': |
| # We return claimed_id instead of identity, |
# We return claimed_id instead of identity, |
| # because the developer should see the claimed identifier, |
# because the developer should see the claimed identifier, |
| # i.e. what he set as identity, not the op-local identifier (which is what we verify) |
# i.e. what he set as identity, not the op-local identifier (which is what we verify) |
| return $this->claimed_id; |
return $this->claimed_id; |
| case 'trustRoot': |
case 'trustRoot': |
| case 'realm': |
case 'realm': |
| return $this->trustRoot; |
return $this->trustRoot; |
| case 'mode': |
case 'mode': |
| return empty($this->data['openid_mode']) ? null : $this->data['openid_mode']; |
return empty($this->data['openid_mode']) ? null : $this->data['openid_mode']; |
| } |
} |
| } |
} |
| |
|
| /** |
/** |
| * Checks if the server specified in the url exists. |
* Checks if the server specified in the url exists. |
| * |
* |
| * @param $url url to check |
* @param $url url to check |
| * @return true, if the server exists; false otherwise |
* @return true, if the server exists; false otherwise |
| */ |
*/ |
| function hostExists($url) |
function hostExists($url) |
| { |
{ |
| if (strpos($url, '/') === false) { |
if (strpos($url, '/') === false) { |
| $server = $url; |
$server = $url; |
| } else { |
} else { |
| $server = @parse_url($url, PHP_URL_HOST); |
$server = @parse_url($url, PHP_URL_HOST); |
| } |
} |
| |
|
| if (!$server) { |
if (!$server) { |
| return false; |
return false; |
| } |
} |
| |
|
| return !!gethostbynamel($server); |
return !!gethostbynamel($server); |
| } |
} |
| |
|
| protected function request_curl($url, $method='GET', $params=array()) |
protected function request_curl($url, $method='GET', $params=array()) |
| { |
{ |
| $params = http_build_query($params, '', '&'); |
$params = http_build_query($params, '', '&'); |
| $curl = curl_init($url . ($method == 'GET' && $params ? '?' . $params : '')); |
$curl = curl_init($url . ($method == 'GET' && $params ? '?' . $params : '')); |
| curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); |
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); |
| curl_setopt($curl, CURLOPT_HEADER, false); |
curl_setopt($curl, CURLOPT_HEADER, false); |
| curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); |
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); |
| curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); |
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); |
| curl_setopt($curl, CURLOPT_HTTPHEADER, array('Accept: application/xrds+xml, */*')); |
curl_setopt($curl, CURLOPT_HTTPHEADER, array('Accept: application/xrds+xml, */*')); |
| |
|
| if($this->verify_peer !== null) { |
if($this->verify_peer !== null) { |
| curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->verify_peer); |
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->verify_peer); |
| if($this->capath) { |
if($this->capath) { |
| curl_setopt($curl, CURLOPT_CAPATH, $this->capath); |
curl_setopt($curl, CURLOPT_CAPATH, $this->capath); |
| } |
} |
| |
|
| if($this->cainfo) { |
if($this->cainfo) { |
| curl_setopt($curl, CURLOPT_CAINFO, $this->cainfo); |
curl_setopt($curl, CURLOPT_CAINFO, $this->cainfo); |
| } |
} |
| } |
} |
| |
|
| if ($method == 'POST') { |
if ($method == 'POST') { |
| curl_setopt($curl, CURLOPT_POST, true); |
curl_setopt($curl, CURLOPT_POST, true); |
| curl_setopt($curl, CURLOPT_POSTFIELDS, $params); |
curl_setopt($curl, CURLOPT_POSTFIELDS, $params); |
| } elseif ($method == 'HEAD') { |
} elseif ($method == 'HEAD') { |
| curl_setopt($curl, CURLOPT_HEADER, true); |
curl_setopt($curl, CURLOPT_HEADER, true); |
| curl_setopt($curl, CURLOPT_NOBODY, true); |
curl_setopt($curl, CURLOPT_NOBODY, true); |
| } else { |
} else { |
| curl_setopt($curl, CURLOPT_HTTPGET, true); |
curl_setopt($curl, CURLOPT_HTTPGET, true); |
| } |
} |
| $response = curl_exec($curl); |
$response = curl_exec($curl); |
| |
|
| if($method == 'HEAD') { |
if($method == 'HEAD') { |
| $headers = array(); |
$headers = array(); |
| foreach(explode("\n", $response) as $header) { |
foreach(explode("\n", $response) as $header) { |
| $pos = strpos($header,':'); |
$pos = strpos($header,':'); |
| $name = strtolower(trim(substr($header, 0, $pos))); |
$name = strtolower(trim(substr($header, 0, $pos))); |
| $headers[$name] = trim(substr($header, $pos+1)); |
$headers[$name] = trim(substr($header, $pos+1)); |
| } |
} |
| |
|
| # Updating claimed_id in case of redirections. |
# Updating claimed_id in case of redirections. |
| $effective_url = curl_getinfo($curl, CURLINFO_EFFECTIVE_URL); |
$effective_url = curl_getinfo($curl, CURLINFO_EFFECTIVE_URL); |
| if($effective_url != $url) { |
if($effective_url != $url) { |
| $this->identity = $this->claimed_id = $effective_url; |
$this->identity = $this->claimed_id = $effective_url; |
| } |
} |
| |
|
| return $headers; |
return $headers; |
| } |
} |
| |
|
| if (curl_errno($curl)) { |
if (curl_errno($curl)) { |
| throw new ErrorException(curl_error($curl), curl_errno($curl)); |
throw new ErrorException(curl_error($curl), curl_errno($curl)); |
| } |
} |
| |
|
| return $response; |
return $response; |
| } |
} |
| |
|
| protected function request_streams($url, $method='GET', $params=array()) |
protected function request_streams($url, $method='GET', $params=array()) |
| { |
{ |
| if(!$this->hostExists($url)) { |
if(!$this->hostExists($url)) { |
| throw new ErrorException("Could not connect to $url.", 404); |
throw new ErrorException("Could not connect to $url.", 404); |
| } |
} |
| |
|
| $params = http_build_query($params, '', '&'); |
$params = http_build_query($params, '', '&'); |
| switch($method) { |
switch($method) { |
| case 'GET': |
case 'GET': |
| $opts = array( |
$opts = array( |
| 'http' => array( |
'http' => array( |
| 'method' => 'GET', |
'method' => 'GET', |
| 'header' => 'Accept: application/xrds+xml, */*', |
'header' => 'Accept: application/xrds+xml, */*', |
| 'ignore_errors' => true, |
'ignore_errors' => true, |
| ), 'ssl' => array( |
), 'ssl' => array( |
| 'CN_match' => parse_url($url, PHP_URL_HOST), |
'CN_match' => parse_url($url, PHP_URL_HOST), |
| ), |
), |
| ); |
); |
| $url = $url . ($params ? '?' . $params : ''); |
$url = $url . ($params ? '?' . $params : ''); |
| break; |
break; |
| case 'POST': |
case 'POST': |
| $opts = array( |
$opts = array( |
| 'http' => array( |
'http' => array( |
| 'method' => 'POST', |
'method' => 'POST', |
| 'header' => 'Content-type: application/x-www-form-urlencoded', |
'header' => 'Content-type: application/x-www-form-urlencoded', |
| 'content' => $params, |
'content' => $params, |
| 'ignore_errors' => true, |
'ignore_errors' => true, |
| ), 'ssl' => array( |
), 'ssl' => array( |
| 'CN_match' => parse_url($url, PHP_URL_HOST), |
'CN_match' => parse_url($url, PHP_URL_HOST), |
| ), |
), |
| ); |
); |
| break; |
break; |
| case 'HEAD': |
case 'HEAD': |
| # We want to send a HEAD request, |
# We want to send a HEAD request, |
| # but since get_headers doesn't accept $context parameter, |
# but since get_headers doesn't accept $context parameter, |
| # we have to change the defaults. |
# we have to change the defaults. |
| $default = stream_context_get_options(stream_context_get_default()); |
$default = stream_context_get_options(stream_context_get_default()); |
| stream_context_get_default( |
stream_context_get_default( |
| array( |
array( |
| 'http' => array( |
'http' => array( |
| 'method' => 'HEAD', |
'method' => 'HEAD', |
| 'header' => 'Accept: application/xrds+xml, */*', |
'header' => 'Accept: application/xrds+xml, */*', |
| 'ignore_errors' => true, |
'ignore_errors' => true, |
| ), 'ssl' => array( |
), 'ssl' => array( |
| 'CN_match' => parse_url($url, PHP_URL_HOST), |
'CN_match' => parse_url($url, PHP_URL_HOST), |
| ), |
), |
| ) |
) |
| ); |
); |
| |
|
| $url = $url . ($params ? '?' . $params : ''); |
$url = $url . ($params ? '?' . $params : ''); |
| $headers_tmp = get_headers ($url); |
$headers_tmp = get_headers ($url); |
| if(!$headers_tmp) { |
if(!$headers_tmp) { |
| return array(); |
return array(); |
| } |
} |
| |
|
| # Parsing headers. |
# Parsing headers. |
| $headers = array(); |
$headers = array(); |
| foreach($headers_tmp as $header) { |
foreach($headers_tmp as $header) { |
| $pos = strpos($header,':'); |
$pos = strpos($header,':'); |
| $name = strtolower(trim(substr($header, 0, $pos))); |
$name = strtolower(trim(substr($header, 0, $pos))); |
| $headers[$name] = trim(substr($header, $pos+1)); |
$headers[$name] = trim(substr($header, $pos+1)); |
| |
|
| # Following possible redirections. The point is just to have |
# Following possible redirections. The point is just to have |
| # claimed_id change with them, because get_headers() will |
# claimed_id change with them, because get_headers() will |
| # follow redirections automatically. |
# follow redirections automatically. |
| # We ignore redirections with relative paths. |
# We ignore redirections with relative paths. |
| # If any known provider uses them, file a bug report. |
# If any known provider uses them, file a bug report. |
| if($name == 'location') { |
if($name == 'location') { |
| if(strpos($headers[$name], 'http') === 0) { |
if(strpos($headers[$name], 'http') === 0) { |
| $this->identity = $this->claimed_id = $headers[$name]; |
$this->identity = $this->claimed_id = $headers[$name]; |
| } elseif($headers[$name][0] == '/') { |
} elseif($headers[$name][0] == '/') { |
| $parsed_url = parse_url($this->claimed_id); |
$parsed_url = parse_url($this->claimed_id); |
| $this->identity = |
$this->identity = |
| $this->claimed_id = $parsed_url['scheme'] . '://' |
$this->claimed_id = $parsed_url['scheme'] . '://' |
| . $parsed_url['host'] |
. $parsed_url['host'] |
| . $headers[$name]; |
. $headers[$name]; |
| } |
} |
| } |
} |
| } |
} |
| |
|
| # And restore them. |
# And restore them. |
| stream_context_get_default($default); |
stream_context_get_default($default); |
| return $headers; |
return $headers; |
| } |
} |
| |
|
| if($this->verify_peer) { |
if($this->verify_peer) { |
| $opts['ssl'] += array( |
$opts['ssl'] += array( |
| 'verify_peer' => true, |
'verify_peer' => true, |
| 'capath' => $this->capath, |
'capath' => $this->capath, |
| 'cafile' => $this->cainfo, |
'cafile' => $this->cainfo, |
| ); |
); |
| } |
} |
| |
|
| $context = stream_context_create ($opts); |
$context = stream_context_create ($opts); |
| |
|
| return file_get_contents($url, false, $context); |
return file_get_contents($url, false, $context); |
| } |
} |
| |
|
| protected function request($url, $method='GET', $params=array()) |
protected function request($url, $method='GET', $params=array()) |
| { |
{ |
| if (function_exists('curl_init') |
if (function_exists('curl_init') |
| && (!in_array('https', stream_get_wrappers()) || !ini_get('safe_mode') && !ini_get('open_basedir')) |
&& (!in_array('https', stream_get_wrappers()) || !ini_get('safe_mode') && !ini_get('open_basedir')) |
| ) { |
) { |
| return $this->request_curl($url, $method, $params); |
return $this->request_curl($url, $method, $params); |
| } |
} |
| return $this->request_streams($url, $method, $params); |
return $this->request_streams($url, $method, $params); |
| } |
} |
| |
|
| protected function build_url($url, $parts) |
protected function build_url($url, $parts) |
| { |
{ |
| if (isset($url['query'], $parts['query'])) { |
if (isset($url['query'], $parts['query'])) { |
| $parts['query'] = $url['query'] . '&' . $parts['query']; |
$parts['query'] = $url['query'] . '&' . $parts['query']; |
| } |
} |
| |
|
| $url = $parts + $url; |
$url = $parts + $url; |
| $url = $url['scheme'] . '://' |
$url = $url['scheme'] . '://' |
| . (empty($url['username'])?'' |
. (empty($url['username'])?'' |
| :(empty($url['password'])? "{$url['username']}@" |
:(empty($url['password'])? "{$url['username']}@" |
| :"{$url['username']}:{$url['password']}@")) |
:"{$url['username']}:{$url['password']}@")) |
| . $url['host'] |
. $url['host'] |
| . (empty($url['port'])?'':":{$url['port']}") |
. (empty($url['port'])?'':":{$url['port']}") |
| . (empty($url['path'])?'':$url['path']) |
. (empty($url['path'])?'':$url['path']) |
| . (empty($url['query'])?'':"?{$url['query']}") |
. (empty($url['query'])?'':"?{$url['query']}") |
| . (empty($url['fragment'])?'':"#{$url['fragment']}"); |
. (empty($url['fragment'])?'':"#{$url['fragment']}"); |
| return $url; |
return $url; |
| } |
} |
| |
|
| /** |
/** |
| * Helper function used to scan for <meta>/<link> tags and extract information |
* Helper function used to scan for <meta>/<link> tags and extract information |
| * from them |
* from them |
| */ |
*/ |
| protected function htmlTag($content, $tag, $attrName, $attrValue, $valueName) |
protected function htmlTag($content, $tag, $attrName, $attrValue, $valueName) |
| { |
{ |
| preg_match_all("#<{$tag}[^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*$valueName=['\"](.+?)['\"][^>]*/?>#i", $content, $matches1); |
preg_match_all("#<{$tag}[^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*$valueName=['\"](.+?)['\"][^>]*/?>#i", $content, $matches1); |
| preg_match_all("#<{$tag}[^>]*$valueName=['\"](.+?)['\"][^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*/?>#i", $content, $matches2); |
preg_match_all("#<{$tag}[^>]*$valueName=['\"](.+?)['\"][^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*/?>#i", $content, $matches2); |
| |
|
| $result = array_merge($matches1[1], $matches2[1]); |
$result = array_merge($matches1[1], $matches2[1]); |
| return empty($result)?false:$result[0]; |
return empty($result)?false:$result[0]; |
| } |
} |
| |
|
| /** |
/** |
| * Performs Yadis and HTML discovery. Normally not used. |
* Performs Yadis and HTML discovery. Normally not used. |
| * @param $url Identity URL. |
* @param $url Identity URL. |
| * @return String OP Endpoint (i.e. OpenID provider address). |
* @return String OP Endpoint (i.e. OpenID provider address). |
| * @throws ErrorException |
* @throws ErrorException |
| */ |
*/ |
| function discover($url) |
function discover($url) |
| { |
{ |
| if (!$url) throw new ErrorException('No identity supplied.'); |
if (!$url) throw new ErrorException('No identity supplied.'); |
| # Use xri.net proxy to resolve i-name identities |
# Use xri.net proxy to resolve i-name identities |
| if (!preg_match('#^https?:#', $url)) { |
if (!preg_match('#^https?:#', $url)) { |
| $url = "https://xri.net/$url"; |
$url = "https://xri.net/$url"; |
| } |
} |
| |
|
| # We save the original url in case of Yadis discovery failure. |
# We save the original url in case of Yadis discovery failure. |
| # It can happen when we'll be lead to an XRDS document |
# It can happen when we'll be lead to an XRDS document |
| # which does not have any OpenID2 services. |
# which does not have any OpenID2 services. |
| $originalUrl = $url; |
$originalUrl = $url; |
| |
|
| # A flag to disable yadis discovery in case of failure in headers. |
# A flag to disable yadis discovery in case of failure in headers. |
| $yadis = true; |
$yadis = true; |
| |
|
| # We'll jump a maximum of 5 times, to avoid endless redirections. |
# We'll jump a maximum of 5 times, to avoid endless redirections. |
| for ($i = 0; $i < 5; $i ++) { |
for ($i = 0; $i < 5; $i ++) { |
| if ($yadis) { |
if ($yadis) { |
| $headers = $this->request($url, 'HEAD'); |
$headers = $this->request($url, 'HEAD'); |
| |
|
| $next = false; |
$next = false; |
| if (isset($headers['x-xrds-location'])) { |
if (isset($headers['x-xrds-location'])) { |
| $url = $this->build_url(parse_url($url), parse_url(trim($headers['x-xrds-location']))); |
$url = $this->build_url(parse_url($url), parse_url(trim($headers['x-xrds-location']))); |
| $next = true; |
$next = true; |
| } |
} |
| |
|
| if (isset($headers['content-type']) |
if (isset($headers['content-type']) |
| && (strpos($headers['content-type'], 'application/xrds+xml') !== false |
&& (strpos($headers['content-type'], 'application/xrds+xml') !== false |
| || strpos($headers['content-type'], 'text/xml') !== false) |
|| strpos($headers['content-type'], 'text/xml') !== false) |
| ) { |
) { |
| # Apparently, some providers return XRDS documents as text/html. |
# Apparently, some providers return XRDS documents as text/html. |
| # While it is against the spec, allowing this here shouldn't break |
# While it is against the spec, allowing this here shouldn't break |
| # compatibility with anything. |
# compatibility with anything. |
| # --- |
# --- |
| # Found an XRDS document, now let's find the server, and optionally delegate. |
# Found an XRDS document, now let's find the server, and optionally delegate. |
| $content = $this->request($url, 'GET'); |
$content = $this->request($url, 'GET'); |
| |
|
| preg_match_all('#<Service.*?>(.*?)</Service>#s', $content, $m); |
preg_match_all('#<Service.*?>(.*?)</Service>#s', $content, $m); |
| foreach($m[1] as $content) { |
foreach($m[1] as $content) { |
| $content = ' ' . $content; # The space is added, so that strpos doesn't return 0. |
$content = ' ' . $content; # The space is added, so that strpos doesn't return 0. |
| |
|
| # OpenID 2 |
# OpenID 2 |
| $ns = preg_quote('http://specs.openid.net/auth/2.0/'); |
$ns = preg_quote('http://specs.openid.net/auth/2.0/'); |
| if(preg_match('#<Type>\s*'.$ns.'(server|signon)\s*</Type>#s', $content, $type)) { |
if(preg_match('#<Type>\s*'.$ns.'(server|signon)\s*</Type>#s', $content, $type)) { |
| if ($type[1] == 'server') $this->identifier_select = true; |
if ($type[1] == 'server') $this->identifier_select = true; |
| |
|
| preg_match('#<URI.*?>(.*)</URI>#', $content, $server); |
preg_match('#<URI.*?>(.*)</URI>#', $content, $server); |
| preg_match('#<(Local|Canonical)ID>(.*)</\1ID>#', $content, $delegate); |
preg_match('#<(Local|Canonical)ID>(.*)</\1ID>#', $content, $delegate); |
| if (empty($server)) { |
if (empty($server)) { |
| return false; |
return false; |
| } |
} |
| # Does the server advertise support for either AX or SREG? |
# Does the server advertise support for either AX or SREG? |
| $this->ax = (bool) strpos($content, '<Type>http://openid.net/srv/ax/1.0</Type>'); |
$this->ax = (bool) strpos($content, '<Type>http://openid.net/srv/ax/1.0</Type>'); |
| $this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>') |
$this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>') |
| || strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>'); |
|| strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>'); |
| |
|
| $server = $server[1]; |
$server = $server[1]; |
| if (isset($delegate[2])) $this->identity = trim($delegate[2]); |
if (isset($delegate[2])) $this->identity = trim($delegate[2]); |
| $this->version = 2; |
$this->version = 2; |
| |
|
| $this->server = $server; |
$this->server = $server; |
| return $server; |
return $server; |
| } |
} |
| |
|
| # OpenID 1.1 |
# OpenID 1.1 |
| $ns = preg_quote('http://openid.net/signon/1.1'); |
$ns = preg_quote('http://openid.net/signon/1.1'); |
| if (preg_match('#<Type>\s*'.$ns.'\s*</Type>#s', $content)) { |
if (preg_match('#<Type>\s*'.$ns.'\s*</Type>#s', $content)) { |
| |
|
| preg_match('#<URI.*?>(.*)</URI>#', $content, $server); |
preg_match('#<URI.*?>(.*)</URI>#', $content, $server); |
| preg_match('#<.*?Delegate>(.*)</.*?Delegate>#', $content, $delegate); |
preg_match('#<.*?Delegate>(.*)</.*?Delegate>#', $content, $delegate); |
| if (empty($server)) { |
if (empty($server)) { |
| return false; |
return false; |
| } |
} |
| # AX can be used only with OpenID 2.0, so checking only SREG |
# AX can be used only with OpenID 2.0, so checking only SREG |
| $this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>') |
$this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>') |
| || strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>'); |
|| strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>'); |
| |
|
| $server = $server[1]; |
$server = $server[1]; |
| if (isset($delegate[1])) $this->identity = $delegate[1]; |
if (isset($delegate[1])) $this->identity = $delegate[1]; |
| $this->version = 1; |
$this->version = 1; |
| |
|
| $this->server = $server; |
$this->server = $server; |
| return $server; |
return $server; |
| } |
} |
| } |
} |
| |
|
| $next = true; |
$next = true; |
| $yadis = false; |
$yadis = false; |
| $url = $originalUrl; |
$url = $originalUrl; |
| $content = null; |
$content = null; |
| break; |
break; |
| } |
} |
| if ($next) continue; |
if ($next) continue; |
| |
|
| # There are no relevant information in headers, so we search the body. |
# There are no relevant information in headers, so we search the body. |
| $content = $this->request($url, 'GET'); |
$content = $this->request($url, 'GET'); |
| $location = $this->htmlTag($content, 'meta', 'http-equiv', 'X-XRDS-Location', 'content'); |
$location = $this->htmlTag($content, 'meta', 'http-equiv', 'X-XRDS-Location', 'content'); |
| if ($location) { |
if ($location) { |
| $url = $this->build_url(parse_url($url), parse_url($location)); |
$url = $this->build_url(parse_url($url), parse_url($location)); |
| continue; |
continue; |
| } |
} |
| } |
} |
| |
|
| if (!$content) $content = $this->request($url, 'GET'); |
if (!$content) $content = $this->request($url, 'GET'); |
| |
|
| # At this point, the YADIS Discovery has failed, so we'll switch |
# At this point, the YADIS Discovery has failed, so we'll switch |
| # to openid2 HTML discovery, then fallback to openid 1.1 discovery. |
# to openid2 HTML discovery, then fallback to openid 1.1 discovery. |
| $server = $this->htmlTag($content, 'link', 'rel', 'openid2.provider', 'href'); |
$server = $this->htmlTag($content, 'link', 'rel', 'openid2.provider', 'href'); |
| $delegate = $this->htmlTag($content, 'link', 'rel', 'openid2.local_id', 'href'); |
$delegate = $this->htmlTag($content, 'link', 'rel', 'openid2.local_id', 'href'); |
| $this->version = 2; |
$this->version = 2; |
| |
|
| if (!$server) { |
if (!$server) { |
| # The same with openid 1.1 |
# The same with openid 1.1 |
| $server = $this->htmlTag($content, 'link', 'rel', 'openid.server', 'href'); |
$server = $this->htmlTag($content, 'link', 'rel', 'openid.server', 'href'); |
| $delegate = $this->htmlTag($content, 'link', 'rel', 'openid.delegate', 'href'); |
$delegate = $this->htmlTag($content, 'link', 'rel', 'openid.delegate', 'href'); |
| $this->version = 1; |
$this->version = 1; |
| } |
} |
| |
|
| if ($server) { |
if ($server) { |
| # We found an OpenID2 OP Endpoint |
# We found an OpenID2 OP Endpoint |
| if ($delegate) { |
if ($delegate) { |
| # We have also found an OP-Local ID. |
# We have also found an OP-Local ID. |
| $this->identity = $delegate; |
$this->identity = $delegate; |
| } |
} |
| $this->server = $server; |
$this->server = $server; |
| return $server; |
return $server; |
| } |
} |
| |
|
| throw new ErrorException("No OpenID Server found at $url", 404); |
throw new ErrorException("No OpenID Server found at $url", 404); |
| } |
} |
| throw new ErrorException('Endless redirection!', 500); |
throw new ErrorException('Endless redirection!', 500); |
| } |
} |
| |
|
| protected function sregParams() |
protected function sregParams() |
| { |
{ |
| $params = array(); |
$params = array(); |
| # We always use SREG 1.1, even if the server is advertising only support for 1.0. |
# We always use SREG 1.1, even if the server is advertising only support for 1.0. |
| # That's because it's fully backwards compatibile with 1.0, and some providers |
# That's because it's fully backwards compatibile with 1.0, and some providers |
| # advertise 1.0 even if they accept only 1.1. One such provider is myopenid.com |
# advertise 1.0 even if they accept only 1.1. One such provider is myopenid.com |
| $params['openid.ns.sreg'] = 'http://openid.net/extensions/sreg/1.1'; |
$params['openid.ns.sreg'] = 'http://openid.net/extensions/sreg/1.1'; |
| if ($this->required) { |
if ($this->required) { |
| $params['openid.sreg.required'] = array(); |
$params['openid.sreg.required'] = array(); |
| foreach ($this->required as $required) { |
foreach ($this->required as $required) { |
| if (!isset(self::$ax_to_sreg[$required])) continue; |
if (!isset(self::$ax_to_sreg[$required])) continue; |
| $params['openid.sreg.required'][] = self::$ax_to_sreg[$required]; |
$params['openid.sreg.required'][] = self::$ax_to_sreg[$required]; |
| } |
} |
| $params['openid.sreg.required'] = implode(',', $params['openid.sreg.required']); |
$params['openid.sreg.required'] = implode(',', $params['openid.sreg.required']); |
| } |
} |
| |
|
| if ($this->optional) { |
if ($this->optional) { |
| $params['openid.sreg.optional'] = array(); |
$params['openid.sreg.optional'] = array(); |
| foreach ($this->optional as $optional) { |
foreach ($this->optional as $optional) { |
| if (!isset(self::$ax_to_sreg[$optional])) continue; |
if (!isset(self::$ax_to_sreg[$optional])) continue; |
| $params['openid.sreg.optional'][] = self::$ax_to_sreg[$optional]; |
$params['openid.sreg.optional'][] = self::$ax_to_sreg[$optional]; |
| } |
} |
| $params['openid.sreg.optional'] = implode(',', $params['openid.sreg.optional']); |
$params['openid.sreg.optional'] = implode(',', $params['openid.sreg.optional']); |
| } |
} |
| return $params; |
return $params; |
| } |
} |
| |
|
| protected function axParams() |
protected function axParams() |
| { |
{ |
| $params = array(); |
$params = array(); |
| if ($this->required || $this->optional) { |
if ($this->required || $this->optional) { |
| $params['openid.ns.ax'] = 'http://openid.net/srv/ax/1.0'; |
$params['openid.ns.ax'] = 'http://openid.net/srv/ax/1.0'; |
| $params['openid.ax.mode'] = 'fetch_request'; |
$params['openid.ax.mode'] = 'fetch_request'; |
| $this->aliases = array(); |
$this->aliases = array(); |
| $counts = array(); |
$counts = array(); |
| $required = array(); |
$required = array(); |
| $optional = array(); |
$optional = array(); |
| foreach (array('required','optional') as $type) { |
foreach (array('required','optional') as $type) { |
| foreach ($this->$type as $alias => $field) { |
foreach ($this->$type as $alias => $field) { |
| if (is_int($alias)) $alias = strtr($field, '/', '_'); |
if (is_int($alias)) $alias = strtr($field, '/', '_'); |
| $this->aliases[$alias] = 'http://axschema.org/' . $field; |
$this->aliases[$alias] = 'http://axschema.org/' . $field; |
| if (empty($counts[$alias])) $counts[$alias] = 0; |
if (empty($counts[$alias])) $counts[$alias] = 0; |
| $counts[$alias] += 1; |
$counts[$alias] += 1; |
| ${$type}[] = $alias; |
${$type}[] = $alias; |
| } |
} |
| } |
} |
| foreach ($this->aliases as $alias => $ns) { |
foreach ($this->aliases as $alias => $ns) { |
| $params['openid.ax.type.' . $alias] = $ns; |
$params['openid.ax.type.' . $alias] = $ns; |
| } |
} |
| foreach ($counts as $alias => $count) { |
foreach ($counts as $alias => $count) { |
| if ($count == 1) continue; |
if ($count == 1) continue; |
| $params['openid.ax.count.' . $alias] = $count; |
$params['openid.ax.count.' . $alias] = $count; |
| } |
} |
| |
|
| # Don't send empty ax.requied and ax.if_available. |
# Don't send empty ax.requied and ax.if_available. |
| # Google and possibly other providers refuse to support ax when one of these is empty. |
# Google and possibly other providers refuse to support ax when one of these is empty. |
| if($required) { |
if($required) { |
| $params['openid.ax.required'] = implode(',', $required); |
$params['openid.ax.required'] = implode(',', $required); |
| } |
} |
| if($optional) { |
if($optional) { |
| $params['openid.ax.if_available'] = implode(',', $optional); |
$params['openid.ax.if_available'] = implode(',', $optional); |
| } |
} |
| } |
} |
| return $params; |
return $params; |
| } |
} |
| |
|
| protected function authUrl_v1($immediate) |
protected function authUrl_v1($immediate) |
| { |
{ |
| $returnUrl = $this->returnUrl; |
$returnUrl = $this->returnUrl; |
| # If we have an openid.delegate that is different from our claimed id, |
# If we have an openid.delegate that is different from our claimed id, |
| # we need to somehow preserve the claimed id between requests. |
# we need to somehow preserve the claimed id between requests. |
| # The simplest way is to just send it along with the return_to url. |
# The simplest way is to just send it along with the return_to url. |
| if($this->identity != $this->claimed_id) { |
if($this->identity != $this->claimed_id) { |
| $returnUrl .= (strpos($returnUrl, '?') ? '&' : '?') . 'openid.claimed_id=' . $this->claimed_id; |
$returnUrl .= (strpos($returnUrl, '?') ? '&' : '?') . 'openid.claimed_id=' . $this->claimed_id; |
| } |
} |
| |
|
| $params = array( |
$params = array( |
| 'openid.return_to' => $returnUrl, |
'openid.return_to' => $returnUrl, |
| 'openid.mode' => $immediate ? 'checkid_immediate' : 'checkid_setup', |
'openid.mode' => $immediate ? 'checkid_immediate' : 'checkid_setup', |
| 'openid.identity' => $this->identity, |
'openid.identity' => $this->identity, |
| 'openid.trust_root' => $this->trustRoot, |
'openid.trust_root' => $this->trustRoot, |
| ) + $this->sregParams(); |
) + $this->sregParams(); |
| |
|
| return $this->build_url(parse_url($this->server) |
return $this->build_url(parse_url($this->server) |
| , array('query' => http_build_query($params, '', '&'))); |
, array('query' => http_build_query($params, '', '&'))); |
| } |
} |
| |
|
| protected function authUrl_v2($immediate) |
protected function authUrl_v2($immediate) |
| { |
{ |
| $params = array( |
$params = array( |
| 'openid.ns' => 'http://specs.openid.net/auth/2.0', |
'openid.ns' => 'http://specs.openid.net/auth/2.0', |
| 'openid.mode' => $immediate ? 'checkid_immediate' : 'checkid_setup', |
'openid.mode' => $immediate ? 'checkid_immediate' : 'checkid_setup', |
| 'openid.return_to' => $this->returnUrl, |
'openid.return_to' => $this->returnUrl, |
| 'openid.realm' => $this->trustRoot, |
'openid.realm' => $this->trustRoot, |
| ); |
); |
| if ($this->ax) { |
if ($this->ax) { |
| $params += $this->axParams(); |
$params += $this->axParams(); |
| } |
} |
| if ($this->sreg) { |
if ($this->sreg) { |
| $params += $this->sregParams(); |
$params += $this->sregParams(); |
| } |
} |
| if (!$this->ax && !$this->sreg) { |
if (!$this->ax && !$this->sreg) { |
| # If OP doesn't advertise either SREG, nor AX, let's send them both |
# If OP doesn't advertise either SREG, nor AX, let's send them both |
| # in worst case we don't get anything in return. |
# in worst case we don't get anything in return. |
| $params += $this->axParams() + $this->sregParams(); |
$params += $this->axParams() + $this->sregParams(); |
| } |
} |
| |
|
| if ($this->identifier_select) { |
if ($this->identifier_select) { |
| $params['openid.identity'] = $params['openid.claimed_id'] |
$params['openid.identity'] = $params['openid.claimed_id'] |
| = 'http://specs.openid.net/auth/2.0/identifier_select'; |
= 'http://specs.openid.net/auth/2.0/identifier_select'; |
| } else { |
} else { |
| $params['openid.identity'] = $this->identity; |
$params['openid.identity'] = $this->identity; |
| $params['openid.claimed_id'] = $this->claimed_id; |
$params['openid.claimed_id'] = $this->claimed_id; |
| } |
} |
| |
|
| return $this->build_url(parse_url($this->server) |
return $this->build_url(parse_url($this->server) |
| , array('query' => http_build_query($params, '', '&'))); |
, array('query' => http_build_query($params, '', '&'))); |
| } |
} |
| |
|
| /** |
/** |
| * Returns authentication url. Usually, you want to redirect your user to it. |
* Returns authentication url. Usually, you want to redirect your user to it. |
| * @return String The authentication url. |
* @return String The authentication url. |
| * @param String $select_identifier Whether to request OP to select identity for an user in OpenID 2. Does not affect OpenID 1. |
* @param String $select_identifier Whether to request OP to select identity for an user in OpenID 2. Does not affect OpenID 1. |
| * @throws ErrorException |
* @throws ErrorException |
| */ |
*/ |
| function authUrl($immediate = false) |
function authUrl($immediate = false) |
| { |
{ |
| if ($this->setup_url && !$immediate) return $this->setup_url; |
if ($this->setup_url && !$immediate) return $this->setup_url; |
| if (!$this->server) $this->discover($this->identity); |
if (!$this->server) $this->discover($this->identity); |
| |
|
| if ($this->version == 2) { |
if ($this->version == 2) { |
| return $this->authUrl_v2($immediate); |
return $this->authUrl_v2($immediate); |
| } |
} |
| return $this->authUrl_v1($immediate); |
return $this->authUrl_v1($immediate); |
| } |
} |
| |
|
| /** |
/** |
| * Performs OpenID verification with the OP. |
* Performs OpenID verification with the OP. |
| * @return Bool Whether the verification was successful. |
* @return Bool Whether the verification was successful. |
| * @throws ErrorException |
* @throws ErrorException |
| */ |
*/ |
| function validate() |
function validate() |
| { |
{ |
| # If the request was using immediate mode, a failure may be reported |
# If the request was using immediate mode, a failure may be reported |
| # by presenting user_setup_url (for 1.1) or reporting |
# by presenting user_setup_url (for 1.1) or reporting |
| # mode 'setup_needed' (for 2.0). Also catching all modes other than |
# mode 'setup_needed' (for 2.0). Also catching all modes other than |
| # id_res, in order to avoid throwing errors. |
# id_res, in order to avoid throwing errors. |
| if(isset($this->data['openid_user_setup_url'])) { |
if(isset($this->data['openid_user_setup_url'])) { |
| $this->setup_url = $this->data['openid_user_setup_url']; |
$this->setup_url = $this->data['openid_user_setup_url']; |
| return false; |
return false; |
| } |
} |
| if($this->mode != 'id_res') { |
if($this->mode != 'id_res') { |
| return false; |
return false; |
| } |
} |
| |
|
| $this->claimed_id = isset($this->data['openid_claimed_id'])?$this->data['openid_claimed_id']:$this->data['openid_identity']; |
$this->claimed_id = isset($this->data['openid_claimed_id'])?$this->data['openid_claimed_id']:$this->data['openid_identity']; |
| $params = array( |
$params = array( |
| 'openid.assoc_handle' => $this->data['openid_assoc_handle'], |
'openid.assoc_handle' => $this->data['openid_assoc_handle'], |
| 'openid.signed' => $this->data['openid_signed'], |
'openid.signed' => $this->data['openid_signed'], |
| 'openid.sig' => $this->data['openid_sig'], |
'openid.sig' => $this->data['openid_sig'], |
| ); |
); |
| |
|
| if (isset($this->data['openid_ns'])) { |
if (isset($this->data['openid_ns'])) { |
| # We're dealing with an OpenID 2.0 server, so let's set an 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, |
# Even though we should know location of the endpoint, |
| # we still need to verify it by discovery, so $server is not set here |
# we still need to verify it by discovery, so $server is not set here |
| $params['openid.ns'] = 'http://specs.openid.net/auth/2.0'; |
$params['openid.ns'] = 'http://specs.openid.net/auth/2.0'; |
| } elseif (isset($this->data['openid_claimed_id']) |
} elseif (isset($this->data['openid_claimed_id']) |
| && $this->data['openid_claimed_id'] != $this->data['openid_identity'] |
&& $this->data['openid_claimed_id'] != $this->data['openid_identity'] |
| ) { |
) { |
| # If it's an OpenID 1 provider, and we've got claimed_id, |
# 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. |
# we have to append it to the returnUrl, like authUrl_v1 does. |
| $this->returnUrl .= (strpos($this->returnUrl, '?') ? '&' : '?') |
$this->returnUrl .= (strpos($this->returnUrl, '?') ? '&' : '?') |
| . 'openid.claimed_id=' . $this->claimed_id; |
. 'openid.claimed_id=' . $this->claimed_id; |
| } |
} |
| |
|
| if ($this->data['openid_return_to'] != $this->returnUrl) { |
if ($this->data['openid_return_to'] != $this->returnUrl) { |
| # The return_to url must match the url of current request. |
# 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. |
# I'm assuing that noone will set the returnUrl to something that doesn't make sense. |
| return false; |
return false; |
| } |
} |
| |
|
| $server = $this->discover($this->claimed_id); |
$server = $this->discover($this->claimed_id); |
| |
|
| foreach (explode(',', $this->data['openid_signed']) as $item) { |
foreach (explode(',', $this->data['openid_signed']) as $item) { |
| # Checking whether magic_quotes_gpc is turned on, because |
# Checking whether magic_quotes_gpc is turned on, because |
| # the function may fail if it is. For example, when fetching |
# the function may fail if it is. For example, when fetching |
| # AX namePerson, it might containg an apostrophe, which will be escaped. |
# 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 |
# 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 |
# wants to verify. stripslashes() should solve that problem, but we can't |
| # use it when magic_quotes is off. |
# use it when magic_quotes is off. |
| $value = $this->data['openid_' . str_replace('.','_',$item)]; |
$value = $this->data['openid_' . str_replace('.','_',$item)]; |
| $params['openid.' . $item] = get_magic_quotes_gpc() ? stripslashes($value) : $value; |
$params['openid.' . $item] = get_magic_quotes_gpc() ? stripslashes($value) : $value; |
| |
|
| } |
} |
| |
|
| $params['openid.mode'] = 'check_authentication'; |
$params['openid.mode'] = 'check_authentication'; |
| |
|
| $response = $this->request($server, 'POST', $params); |
$response = $this->request($server, 'POST', $params); |
| |
|
| return preg_match('/is_valid\s*:\s*true/i', $response); |
return preg_match('/is_valid\s*:\s*true/i', $response); |
| } |
} |
| |
|
| protected function getAxAttributes() |
protected function getAxAttributes() |
| { |
{ |
| $alias = null; |
$alias = null; |
| if (isset($this->data['openid_ns_ax']) |
if (isset($this->data['openid_ns_ax']) |
| && $this->data['openid_ns_ax'] != 'http://openid.net/srv/ax/1.0' |
&& $this->data['openid_ns_ax'] != 'http://openid.net/srv/ax/1.0' |
| ) { # It's the most likely case, so we'll check it before |
) { # It's the most likely case, so we'll check it before |
| $alias = 'ax'; |
$alias = 'ax'; |
| } else { |
} else { |
| # 'ax' prefix is either undefined, or points to another extension, |
# 'ax' prefix is either undefined, or points to another extension, |
| # so we search for another prefix |
# so we search for another prefix |
| foreach ($this->data as $key => $val) { |
foreach ($this->data as $key => $val) { |
| if (substr($key, 0, strlen('openid_ns_')) == 'openid_ns_' |
if (substr($key, 0, strlen('openid_ns_')) == 'openid_ns_' |
| && $val == 'http://openid.net/srv/ax/1.0' |
&& $val == 'http://openid.net/srv/ax/1.0' |
| ) { |
) { |
| $alias = substr($key, strlen('openid_ns_')); |
$alias = substr($key, strlen('openid_ns_')); |
| break; |
break; |
| } |
} |
| } |
} |
| } |
} |
| if (!$alias) { |
if (!$alias) { |
| # An alias for AX schema has not been found, |
# An alias for AX schema has not been found, |
| # so there is no AX data in the OP's response |
# so there is no AX data in the OP's response |
| return array(); |
return array(); |
| } |
} |
| |
|
| $attributes = array(); |
$attributes = array(); |
| foreach (explode(',', $this->data['openid_signed']) as $key) { |
foreach (explode(',', $this->data['openid_signed']) as $key) { |
| $keyMatch = $alias . '.value.'; |
$keyMatch = $alias . '.value.'; |
| if (substr($key, 0, strlen($keyMatch)) != $keyMatch) { |
if (substr($key, 0, strlen($keyMatch)) != $keyMatch) { |
| continue; |
continue; |
| } |
} |
| $key = substr($key, strlen($keyMatch)); |
$key = substr($key, strlen($keyMatch)); |
| if (!isset($this->data['openid_' . $alias . '_type_' . $key])) { |
if (!isset($this->data['openid_' . $alias . '_type_' . $key])) { |
| # OP is breaking the spec by returning a field without |
# OP is breaking the spec by returning a field without |
| # associated ns. This shouldn't happen, but it's better |
# associated ns. This shouldn't happen, but it's better |
| # to check, than cause an E_NOTICE. |
# to check, than cause an E_NOTICE. |
| continue; |
continue; |
| } |
} |
| $value = $this->data['openid_' . $alias . '_value_' . $key]; |
$value = $this->data['openid_' . $alias . '_value_' . $key]; |
| $key = substr($this->data['openid_' . $alias . '_type_' . $key], |
$key = substr($this->data['openid_' . $alias . '_type_' . $key], |
| strlen('http://axschema.org/')); |
strlen('http://axschema.org/')); |
| |
|
| $attributes[$key] = $value; |
$attributes[$key] = $value; |
| } |
} |
| return $attributes; |
return $attributes; |
| } |
} |
| |
|
| protected function getSregAttributes() |
protected function getSregAttributes() |
| { |
{ |
| $attributes = array(); |
$attributes = array(); |
| $sreg_to_ax = array_flip(self::$ax_to_sreg); |
$sreg_to_ax = array_flip(self::$ax_to_sreg); |
| foreach (explode(',', $this->data['openid_signed']) as $key) { |
foreach (explode(',', $this->data['openid_signed']) as $key) { |
| $keyMatch = 'sreg.'; |
$keyMatch = 'sreg.'; |
| if (substr($key, 0, strlen($keyMatch)) != $keyMatch) { |
if (substr($key, 0, strlen($keyMatch)) != $keyMatch) { |
| continue; |
continue; |
| } |
} |
| $key = substr($key, strlen($keyMatch)); |
$key = substr($key, strlen($keyMatch)); |
| if (!isset($sreg_to_ax[$key])) { |
if (!isset($sreg_to_ax[$key])) { |
| # The field name isn't part of the SREG spec, so we ignore it. |
# The field name isn't part of the SREG spec, so we ignore it. |
| continue; |
continue; |
| } |
} |
| $attributes[$sreg_to_ax[$key]] = $this->data['openid_sreg_' . $key]; |
$attributes[$sreg_to_ax[$key]] = $this->data['openid_sreg_' . $key]; |
| } |
} |
| return $attributes; |
return $attributes; |
| } |
} |
| |
|
| /** |
/** |
| * Gets AX/SREG attributes provided by OP. should be used only after successful validaton. |
* Gets AX/SREG attributes provided by OP. should be used only after successful validaton. |
| * Note that it does not guarantee that any of the required/optional parameters will be present, |
* Note that it does not guarantee that any of the required/optional parameters will be present, |
| * or that there will be no other attributes besides those specified. |
* or that there will be no other attributes besides those specified. |
| * In other words. OP may provide whatever information it wants to. |
* In other words. OP may provide whatever information it wants to. |
| * * SREG names will be mapped to AX names. |
* * SREG names will be mapped to AX names. |
| * * @return Array Array of attributes with keys being the AX schema names, e.g. 'contact/email' |
* * @return Array Array of attributes with keys being the AX schema names, e.g. 'contact/email' |
| * @see http://www.axschema.org/types/ |
* @see http://www.axschema.org/types/ |
| */ |
*/ |
| function getAttributes() |
function getAttributes() |
| { |
{ |
| if (isset($this->data['openid_ns']) |
if (isset($this->data['openid_ns']) |
| && $this->data['openid_ns'] == 'http://specs.openid.net/auth/2.0' |
&& $this->data['openid_ns'] == 'http://specs.openid.net/auth/2.0' |
| ) { # OpenID 2.0 |
) { # OpenID 2.0 |
| # We search for both AX and SREG attributes, with AX taking precedence. |
# We search for both AX and SREG attributes, with AX taking precedence. |
| return $this->getAxAttributes() + $this->getSregAttributes(); |
return $this->getAxAttributes() + $this->getSregAttributes(); |
| } |
} |
| return $this->getSregAttributes(); |
return $this->getSregAttributes(); |
| } |
} |
| } |
} |
| |
|