I am trying to study class.openid.php because it is simpler and smaller than
lightopenid. for my purposes 200 lines do matter. But class.openid.php does not work with google openID https://www.google.com/accounts/o8/id, prints to me such error:
ERROR CODE: OPENID_NOSERVERSFOUND
ERROR DESCRIPTION: Cannot find OpenID Server TAG on Identity page.
is it possible to make class.openid.php (any version) work with google openID and how to do such thing?
class.openid.php can be taken here but it did not worked for me out of the box so I had to find all <? and replace tham with <?php in case someone would like to see code I've got:
html interface page:
<?php
require('class.openid.v3.php');
if ($_POST['openid_action'] == "login"){ // Get identity from user and redirect browser to OpenID Server
$openid = new SimpleOpenID;
$openid->SetIdentity($_POST['openid_url']);
$openid->SetTrustRoot('http://' . $_SERVER["HTTP_HOST"]);
$openid->SetRequiredFields(array('email','fullname'));
$openid->SetOptionalFields(array('dob','gender','postcode','country','language','timezone'));
if ($openid->GetOpenIDServer()){
$openid->SetApprovedURL('http://' . $_SERVER["HTTP_HOST"] . $_SERVER["PATH_INFO"]); // Send Response from OpenID server to this script
$openid->Redirect(); // This will redirect user to OpenID Server
}else{
$error = $openid->GetError();
echo "ERROR CODE: " . $error['code'] . "<br>";
echo "ERROR DESCRIPTION: " . $error['description'] . "<br>";
}
exit;
}
else if($_GET['openid_mode'] == 'id_res'){ // Perform HTTP Request to OpenID server to validate key
$openid = new SimpleOpenID;
$openid->SetIdentity($_GET['openid_identity']);
$openid_validation_result = $openid->ValidateWithServer();
if ($openid_validation_result == true){ // OK HERE KEY IS VALID
echo "VALID";
}else if($openid->IsError() == true){ // ON THE WAY, WE GOT SOME ERROR
$error = $openid->GetError();
echo "ERROR CODE: " . $error['code'] . "<br>";
echo "ERROR DESCRIPTION: " . $error['description'] . "<br>";
}else{ // Signature Verification Failed
echo "INVALID AUTHORIZATION";
}
}else if ($_GET['openid_mode'] == 'cancel'){ // User Canceled your Request
echo "USER CANCELED REQUEST";
}
?>
<html>
<head>
<title>OpenID Example</title>
</head>
<body>
<div>
<fieldset id="openid">
<legend>OpenID Login</legend>
<form action="<?php echo 'http://' . $_SERVER["HTTP_HOST"] . $_SERVER["PATH_INFO"]; ?>" method="post" onsubmit="this.login.disabled=true;">
<input type="hidden" name="openid_action" value="login">
<div><input type="text" name="openid_url" class="openid_login"><input type="submit" name="login" value="login >>"></div>
<div><a href="http://www.myopenid.com/" class="link" >Get an OpenID</a></div>
</form>
</fieldset>
</div>
<div style="margin-top: 2em; font-family: arial; font-size: 0.8em; border-top:1px solid gray; padding: 4px;">Sponsored by: <a href="http://www.fivestores.com">FiveStores</a> - get your free online store; includes extensive API for developers; <i style="color: gray;">integrated with <a href="http://en.wikipedia.org/wiki/OpenID">OpenID</a></i></div>
</body>
</html>
and php class
<?php
/*
FREE TO USE Under License: GPLv3
Simple OpenID PHP Class
Some modifications by Eddie Roosenmaallen, eddie@roosenmaallen.com
*/
class SimpleOpenID{
var $openid_url_identity;
var $URLs = array();
var $error = array();
var $fields = array(
'required' => array(),
'optional' => array(),
);
function SimpleOpenID(){
if (!function_exists('curl_exec')) {
die('Error: Class SimpleOpenID requires curl extension to work');
}
}
function SetOpenIDServer($a){
$this->URLs['openid_server'] = $a;
}
function SetTrustRoot($a){
$this->URLs['trust_root'] = $a;
}
function SetCancelURL($a){
$this->URLs['cancel'] = $a;
}
function SetApprovedURL($a){
$this->URLs['approved'] = $a;
}
function SetRequiredFields($a){
if (is_array($a)){
$this->fields['required'] = $a;
}else{
$this->fields['required'][] = $a;
}
}
function SetOptionalFields($a){
if (is_array($a)){
$this->fields['optional'] = $a;
}else{
$this->fields['optional'][] = $a;
}
}
function SetIdentity($a){ // Set Identity URL
if ((stripos($a, 'http://') === false)
&& (stripos($a, 'https://') === false)){
$a = 'http://'.$a;
}
$this->openid_url_identity = $a;
}
function GetIdentity(){ // Get Identity
return $this->openid_url_identity;
}
function GetError(){
$e = $this->error;
return array('code'=>$e[0],'description'=>$e[1]);
}
function ErrorStore($code, $desc = null){
$errs['OPENID_NOSERVERSFOUND'] = 'Cannot find OpenID Server TAG on Identity page.';
if ($desc == null){
$desc = $errs[$code];
}
$this->error = array($code,$desc);
}
function IsError(){
if (count($this->error) > 0){
return true;
}else{
return false;
}
}
function splitResponse($response) {
$r = array();
$response = explode("
", $response);
foreach($response as $line) {
$line = trim($line);
if ($line != "") {
list($key, $value) = explode(":", $line, 2);
$r[trim($key)] = trim($value);
}
}
return $r;
}
function OpenID_Standarize($openid_identity = null){
if ($openid_identity === null)
$openid_identity = $this->openid_url_identity;
$u = parse_url(strtolower(trim($openid_identity)));
if (!isset($u['path']) || ($u['path'] == '/')) {
$u['path'] = '';
}
if(substr($u['path'],-1,1) == '/'){
$u['path'] = substr($u['path'], 0, strlen($u['path'])-1);
}
if (isset($u['query'])){ // If there is a query string, then use identity as is
return $u['host'] . $u['path'] . '?' . $u['query'];
}else{
return $u['host'] . $u['path'];
}
}
function array2url($arr){ // converts associated array to URL Query String
if (!is_array($arr)){
return false;
}
$query = '';
foreach($arr as $key => $value){
$query .= $key . "=" . $value . "&";
}
return $query;
}
function CURL_Request($url, $method="GET", $params = "") { // Remember, SSL MUST BE SUPPORTED
if (is_array($params)) $params = $this->array2url($params);
$curl = curl_init($url . ($method == "GET" && $params != "" ? "?" . $params : ""));
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_HTTPGET, ($method == "GET"));
curl_setopt($curl, CURLOPT_POST, ($method == "POST"));
if ($method == "POST") curl_setopt($curl, CURLOPT_POSTFIELDS, $params);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($curl);
if (curl_errno($curl) == 0){
$response;
}else{
$this->ErrorStore('OPENID_CURL', curl_error($curl));
}
return $response;
}
function HTML2OpenIDServer($content) {
$get = array();
// Get details of their OpenID server and (optional) delegate
preg_match_all('/<link[^>]*rel=[\'"]openid.server[\'"][^>]*href=[\'"]([^\'"]+)[\'"][^>]*\/?>/i', $content, $matches1);
preg_match_all('/<link[^>]*href=\'"([^\'"]+)[\'"][^>]*rel=[\'"]openid.server[\'"][^>]*\/?>/i', $content, $matches2);
$servers = array_merge($matches1[1], $matches2[1]);
preg_match_all('/<link[^>]*rel=[\'"]openid.delegate[\'"][^>]*href=[\'"]([^\'"]+)[\'"][^>]*\/?>/i', $content, $matches1);
preg_match_all('/<link[^>]*href=[\'"]([^\'"]+)[\'"][^>]*rel=[\'"]openid.delegate[\'"][^>]*\/?>/i', $content, $matches2);
$delegates = array_merge($matches1[1], $matches2[1]);
$ret = array($servers, $delegates);
return $ret;
}
function GetOpenIDServer(){
$response = $this->CURL_Request($this->openid_url_identity);
list($servers, $delegates) = $this->HTML2OpenIDServer($response);
if (count($servers) == 0){
$this->ErrorStore('OPENID_NOSERVERSFOUND');
return false;
}
if (isset($delegates[0])
&& ($delegates[0] != "")){
$this->SetIdentity($delegates[0]);
}
$this->SetOpenIDServer($servers[0]);
return $servers[0];
}
function GetRedirectURL(){
$params = array();
$params['openid.return_to'] = urlencode($this->URLs['approved']);
$params['openid.mode'] = 'checkid_setup';
$params['openid.identity'] = urlencode($this->openid_url_identity);
$params['openid.trust_root'] = urlencode($this->URLs['trust_root']);
if (isset($this->fields['required'])
&& (count($this->fields['required']) > 0)) {
$params['openid.sreg.required'] = implode(',',$this->fields['required']);
}
if (isset($this->fields['optional'])
&& (count($this->fields['optional']) > 0)) {
$params['openid.sreg.optional'] = implode(',',$this->fields['optional']);
}
return $this->URLs['openid_server'] . "?". $this->array2url($params);
}
function Redirect(){
$redirect_to = $this->GetRedirectURL();
if (headers_sent()){ // Use JavaScript to redirect if content has been previously sent (not recommended, but safe)
echo '<script language="JavaScript" type="text/javascript">window.location=\'';
echo $redirect_to;
echo '\';</script>';
}else{ // Default Header Redirect
header('Location: ' . $redirect_to);
}
}
function ValidateWithServer(){
$params = array(
'openid.assoc_handle' => urlencode($_GET['openid_assoc_handle']),
'openid.signed' => urlencode($_GET['openid_signed']),
'openid.sig' => urlencode($_GET['openid_sig'])
);
// Send only required parameters to confirm validity
$arr_signed = explode(",",str_replace('sreg.','sreg_',$_GET['openid_signed']));
for ($i=0; $i<count($arr_signed); $i++){
$s = str_replace('sreg_','sreg.', $arr_signed[$i]);
$c = $_GET['openid_' . $arr_signed[$i]];
// if ($c != ""){
$params['openid.' . $s] = urlencode($c);
// }
}
$params['openid.mode'] = "check_authentication";
$openid_server = $this->GetOpenIDServer();
if ($openid_server == false){
return false;
}
$response = $this->CURL_Request($openid_server,'POST',$params);
$data = $this->splitResponse($response);
if ($data['is_valid'] == "true") {
return true;
}else{
return false;
}
}
}
?>
