I've uploaded my script for facebook login, based on facebook php api 4.0,on a web hosting which supports php 5.4, but I'm getting
Warning: is_readable(): open_basedir restriction in effect. File(/dev/urandom) is not within the allowed path(s): (/home/myuserid:/usr/lib/php:/tmp) in /home/myuserid/public_html/Facebook/FacebookRedirectLoginHelper.php on line 244
Here are line 244 of the file and some of the following
if (is_readable('/dev/urandom')) {
$fp = fopen('/dev/urandom', 'rb');
if ($fp !== FALSE) {
$buf = fread($fp, $bytes);
fclose($fp);
if($buf !== FALSE) {
return bin2hex($buf);
}
}
}
If it could be helpful, here is the basic login script:
<?php
session_start();
require_once('Facebook/Entities/AccessToken.php');
require_once( 'Facebook/FacebookSession.php' );
require_once( 'Facebook/FacebookRedirectLoginHelper.php' );
require_once('Facebook/HttpClients/FacebookHttpable.php');
require_once('Facebook/HttpClients/FacebookCurl.php');
require_once('Facebook/HttpClients/FacebookCurlHttpClient.php');
require_once( 'Facebook/FacebookRequest.php' );
require_once( 'Facebook/FacebookResponse.php' );
require_once( 'Facebook/FacebookSDKException.php' );
require_once( 'Facebook/FacebookRequestException.php' );
require_once( 'Facebook/FacebookAuthorizationException.php' );
require_once( 'Facebook/GraphObject.php' );
use Facebook\FacebookSession;
use Facebook\FacebookRedirectLoginHelper;
use Facebook\FacebookRequest;
use Facebook\FacebookResponse;
use Facebook\FacebookSDKException;
use Facebook\FacebookRequestException;
use Facebook\FacebookAuthorizationException;
use Facebook\GraphObject;
// init app with app id (APPID) and secret (SECRET)
FacebookSession::setDefaultApplication('','');
// login helper with redirect_uri
$helper = new FacebookRedirectLoginHelper( 'http://mysite/fb.php' );
try {
$session = $helper->getSessionFromRedirect();
} catch( FacebookRequestException $ex ) {
// When Facebook returns an error
} catch( Exception $ex ) {
// When validation fails or other local issues
}
// see if we have a session
if ( isset( $session ) ) {
// graph api request for user data
$request = new FacebookRequest( $session, 'GET', '/me' );
$response = $request->execute();
// get response
$graphObject = $response->getGraphObject();
//[...] uses data to login
} else {
// show login url
echo '<a href="' . $helper->getLoginUrl() . '">Login</a>';
}
?>
Note: locally with easyPHP, the script works perfectly