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curl captcha login


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I'm trying to login to a vBulletin forum using a captcha login. I am, however, not able to download the captcha image.


This is the result I get when I try to get the captcha:




So how do I get the captcha image?


This is my current login code:


$md5Pass = md5($pass);
$data = "do=login&vb_login_md5password=$md5Pass&vb_login_md5password_utf=$md5Pass&vb_login_username=$user&cookieuser=1";

$ch = curl_init();

curl_setopt ($ch, CURLOPT_URL, "http://www.****.com/login.php?do=login");
curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)");
curl_setopt ($ch, CURLOPT_TIMEOUT, '10');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookie.txt");
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookie.txt");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

$store = curl_exec ($ch);
echo $store;


Maybe the site looks for a cookie and only shows the captcha if it finds the cookie file?

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