Question

I could not find this problem anywhere and nothing really related that I can see. I have a URL Shortening script that I purchased, this script works great on my first server, installed the database, FTP’d the files and was all set and shortening URLs.

But since then I moved it to a VPS server, I setup the server exactly same, with Centos 5.6. Installed the script, everything is fine. But the only thing that I find that does not work is the shortening process. I have no idea why it won’t work. I have little knowledge of Ajax and JavaScript which I think the problem is with.

Here is ajax.php

 <?php
require_once '../config.php';

function url_exist($url)
{
    $c=curl_init();
    curl_setopt($c,CURLOPT_URL,$url);
    curl_setopt($c,CURLOPT_HEADER,1);
    curl_setopt($c,CURLOPT_NOBODY,1);
    curl_setopt($c,CURLOPT_RETURNTRANSFER,1);
    if(!curl_exec($c)){
        return false;
    }else{
        return true;
    }
}

function shorteURLFromID ($integer)
{
    $base = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $length = strlen($base);
    $out = '';

    while($integer > $length - 1)
    {
        $out = $base[fmod($integer, $length)] . $out;
        $integer = floor( $integer / $length );
    }
    return $base[$integer] . $out;
}

if(isset($_POST['url']))
{
    $l_type = (string) $db->escape(trim(strip_tags($_POST['type'])));

    $url = trim(strip_tags($_POST['url']));
    $url = str_replace(array("http://"), array(''), $url);

    if(strlen($url) < 3) {
        print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
        die("<div class='alert alert-error alert-300'>".translate('empty_url_error')."</div>");
    }

    if(stristr($url, $_SERVER['SERVER_NAME'])) {
        print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
        die("<div class='alert alert-error alert-300'>".translate('same_site_error')."</div>");
    }

    if(url_exist($url))
    {
        //check if exists for this user
        $rs = $db->get_row("SELECT string FROM links WHERE uID = '".$usersObject->ID()."' AND 
                            destination = '".mysql_real_escape_string($url)."' LIMIT 1");
        if(count($rs)) {
            $string = $rs->string;
            print "http://".$_SERVER['SERVER_NAME']."/".$string;
        }else{
            $rs = $db->query("INSERT INTO links (destination, added, ip, uID, type) VALUES 
                            ('".$db->escape($url)."', '".time()."', '".ip2long($_SERVER['REMOTE_ADDR'])."', 
                            '".$usersObject->ID()."', '".$l_type."')");
            if($rs) {
                $string = shorteURLFromID($db->insert_id);
                $rs = $db->query("UPDATE links SET string = '$string' WHERE linkID = '".mysql_insert_id()."'");
                print "http://".$_SERVER['SERVER_NAME']."/".$string;
            }else{
                print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
                print "<div class='alert alert-error alert-300'>Could not create shortened link ".mysql_error()."</div>";
            }
        }

    }else{
        print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
        print "<div class='alert alert-error alert-300'>".translate('invalid_url_error')."</div>";
    }
}else{
    print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
    print '<div class="alert alert-error alert-300">'.translate('invalid_url_error').'</div>';
}

?>

Answer 1

Try adding in this option:

curl_setopt($c, CURLOPT_SSL_VERIFYPEER, 0);

It looks like the default was changed with cURL 7.10 to true, so it is possible PHP 5.2.17 was using a version prior to 7.10.

Levi