[rapidleech][d] letitbit_net.php

<?php
if (!defined('RAPIDLEECH')) {
    require_once('index.html');
    exit();
}

class letitbit_net extends DownloadClass {
    private $page, $cookie;
    public $link;
    public function Download($link) {
        global $premium_acc;
        $this->cookie = array('lang' => 'en');
        // Check link
        if (empty($_REQUEST['step']) || $_REQUEST['step'] != '1') {
            $this->page = $this->GetPage($link, $this->cookie);
            $headers = substr($this->page, 0, strpos($this->page, "\r\n\r\n"));
            $this->cookie = GetCookiesArr($this->page, $this->cookie);
            if (preg_match('@\nLocation: ((https?://(?:[a-zA-Z\d\-]+\.)*letitbit\.net)?/[^\r\n]+)@i', $headers, $redir)) {
                $link = (empty($redir[2])) ? 'http://letitbit.net'.$redir[1] : $redir[1];
                $this->page = $this->GetPage($link, $this->cookie);
                $this->cookie = GetCookiesArr($this->page, $this->cookie);
            } elseif (preg_match('@\nLocation: https?://[^/\r\n]+/[^\r\n]+@i', $headers)) html_error('Error: Non Acceptable Redirect.');
            if (stripos($this->page, 'File not found') !== false) {
                if ($this->cookie['country'] == 'US') html_error('The requested file was not found or isn\'t downloadable in your server\'s country.'); // It seems that lib blocks downloads from usa... I will check this later and add the error msg if it's true. - T8
                html_error('The requested file was not found.');
            }
        }
        $this->link = $link;
        if ($_REQUEST ['premium_acc'] == 'on' && (($_REQUEST['premium_user'] && $_REQUEST ['premium_pass']) || (!empty($premium_acc ['letitbit_net'] ['user']) && !empty($premium_acc ['letitbit_net'] ['pass'])))) {
            $user = $_REQUEST ["premium_user"] ? $_REQUEST ["premium_user"] : $premium_acc ["letitbit_net"] ["user"];
            $pass = $_REQUEST ["premium_pass"] ? $_REQUEST ["premium_pass"] : $premium_acc ["letitbit_net"] ["pass"];
            if (empty($user) || empty($pass)) html_error("Login Failed: Username or Password is empty. Please check login data.");
            return $this->SkipLoginC($user, $pass);
        } elseif ($_REQUEST['premium_acc'] == 'on' && (($_REQUEST['premium_pass'])||(!empty($premium_acc['letitbit_net']['pass'])))) {
            $key = ($_REQUEST ["premium_pass"] ? trim($_REQUEST ["premium_pass"]) : $premium_acc["letitbit_net"]["pass"]);
            return $this->Premium($key);
        } elseif (!empty($_REQUEST['step']) && $_REQUEST['step'] == '1') {
            return $this->Free();
        } else {
            return $this->Retrieve();
        }
    }

    private function Retrieve() {
        if (!preg_match("@<form (?:[^<>]*)[\s\t]*id=\"ifree_form\"(?:[^<>]*)>@i", $this->page, $form_tag)) html_error('Error: Free Form 1 Tag Not Found!');
        $form_action = trim(cut_str($form_tag[0], 'action="', '"'));
        if (!preg_match("@<form (?:[^<>]*)[\s\t]*id=\"enter_premium_form\"(?:[^<>]*)>@i", $this->page, $form_tag)) html_error('Error: Free Form 1 Tag Not Found!');
        $form = trim(cut_str($this->page, $form_tag[0], '</form>'));
        if (empty($form)) html_error('Error: Empty Free Form 1!');
        $post = $this->AutomatePost($form);
        if (stripos($form_action, 'born_iframe') !== false) {
            $page = $this->GetPage("http://letitbit.net$form_action", $this->cookie, $post);
            if (!preg_match("@<form (?:[^<>]*)[\s\t]*id=\"d3_form\"(?:[^<>]*)>@i", $page, $form_tag)) html_error('Error: Free Form 2 Tag Not Found!');
            $form = trim(cut_str($page, $form_tag[0], '</form>'));
            if (empty($form)) html_error('Error: Empty Free Form 2!');
            $post = $this->AutomatePost($form);
            $form_action = trim(cut_str($form_tag[0], 'action="', '"'));
        }
        $this->link = "http://letitbit.net$form_action";
        $page = $this->GetPage($this->link, $this->cookie, $post);
        $this->cookie = GetCookiesArr($page, $this->cookie);
        unset($post, $form_tag, $form_action);
        if (!preg_match("/ajax_check_url = '((http:\/\/[a-z0-9]+\.[\w.]+)\/[^\r\n']+)';/", $page, $check)) html_error("Error: Redirect link [Free] not found!");
        $this->link = $check[1];
        $this->server = $check[2];
        // If you want, you can skip the countdown...
        if (preg_match('@(\d+)<\/span> seconds@', $page, $wait)) $this->CountDown($wait[1]);
        // end countdown timer...
        $this->GetPage($this->link, $this->cookie, array(), 0, 0, 1); //empty array in post variable needed...

        if (!preg_match('@https?://(?:[^/]+\.)?(?:(?:google\.com/recaptcha/api)|(?:recaptcha\.net))/(?:(?:challenge)|(?:noscript))\?k=([\w|\-]+)@i', $page, $pid)) html_error('reCAPTCHA not found.');
        if (!preg_match('@var[\s\t]+recaptcha_control_field[\s\t]*=[\s\t]*\'([^\'\;]+)\'@i', $page, $ctrl)) html_error('Captcha control field not found.');

        $data = $this->DefaultParamArr($this->server . "/ajax/check_recaptcha.php", $this->cookie);
        $data['step'] = '1';
        $data['recaptcha_control_field'] = rawurlencode($ctrl[1]);
        $this->Show_reCaptcha($pid[1], $data);
    }

    private function Free() {
        if (empty($_POST['recaptcha_response_field'])) html_error('You didn\'t enter the image verification code.');
        $post = array();
        $post['recaptcha_challenge_field'] = $_POST['recaptcha_challenge_field'];
        $post['recaptcha_response_field'] = $_POST['recaptcha_response_field'];
        $post['recaptcha_control_field'] = rawurlencode(rawurldecode($_POST['recaptcha_control_field']));

        $this->cookie = urldecode($_POST['cookie']);
        $page = $this->GetPage($this->link, $this->cookie, $post, 0, 0, 1); //too many XML request needed so I used default http.php function in geturl...
        is_present($page, 'error_wrong_captcha', 'Error: Wrong Captcha Entered.');
        is_present($page, 'error_free_download_blocked', 'Error: FreeDL limit reached.');
        if (!preg_match_all('/"(https?:[^\|\r\n\"\']+)"?/', $page, $dl)) html_error('Error: Download link [Free] not found.');
        $dlink = str_replace('\\', '', trim($dl[1][array_rand($dl[1])]));
        $FileName = urldecode(basename(parse_url($dlink, PHP_URL_PATH)));
        $this->RedirectDownload($dlink, $FileName, $this->cookie, 0);
        exit();
    }

    private function Show_reCaptcha($pid, $inputs, $sname = 'Download File') {
        global $PHP_SELF;
        if (!is_array($inputs)) html_error('Error parsing captcha data.');

        // Themes: 'red', 'white', 'blackglass', 'clean'
        echo "<script language='JavaScript'>var RecaptchaOptions = {theme:'red', lang:'en'};</script>\n";

        echo "\n<center><form name='recaptcha' action='$PHP_SELF' method='post'><br />\n";
        foreach ($inputs as $name => $input) echo "<input type='hidden' name='$name' id='$name' value='$input' />\n";
        echo "<script type='text/javascript' src='http://www.google.com/recaptcha/api/challenge?k=$pid'></script>";
        echo "<noscript><iframe src='http://www.google.com/recaptcha/api/noscript?k=$pid' height='300' width='500' frameborder='0'></iframe><br /><textarea name='recaptcha_challenge_field' rows='3' cols='40'></textarea><input type='hidden' name='recaptcha_response_field' value='manual_challenge' /></noscript><br />";
        echo "<input type='submit' name='submit' onclick='javascript:return checkc();' value='$sname' />\n";
        echo "<script type='text/javascript'>/*<![CDATA[*/\nfunction checkc(){\nvar capt=document.getElementById('recaptcha_response_field');\nif (capt.value == '') { window.alert('You didn\'t enter the image verification code.'); return false; }\nelse { return true; }\n}\n/*]]>*/</script>\n";
        echo "</form></center>\n</body>\n</html>";
        exit;
    }

    private function Premium($premiumkey = false) {
        if ($premiumkey) {
            $form = cut_str($this->page, '<div class="hide-block password_area">', '<div class="column label" style="width:200px">');
            if (empty($form)) html_error("Error: Empty Premium Key Form!");
            $post = $this->AutomatePost($form);
            $post['pass'] = $premiumkey;
            $post['submit_sms_ways_have_pass'] = 'Download file';
            $this->link = "http://letitbit.net" . cut_str($form, '<form action="', '"');
            $this->page = $this->GetPage($this->link, $this->cookie, $post);
        } else $this->page = $this->GetPage($this->link, $this->cookie, 0, $this->link);
        $this->cookie = GetCookiesArr($this->page, $this->cookie);

        $x = 0;
        $ref = $this->link;
        while ($x < 5 && preg_match('@\nLocation: ((https?://(?:[a-zA-Z\d\-]+\.)*letitbit\.net)?/[^\r\n]*)@i', $this->page, $redir)) {
            $redir = (empty($redir[2])) ? (!empty($ref['scheme']) && strtolower($ref['scheme']) == 'https' ? 'https' : 'http').'://'.parse_url($ref, PHP_URL_HOST).$redir[1] : $redir[1];
            $this->page = $this->GetPage($redir, $this->cookie, 0, $ref);
            $ref = $redir;
            $this->cookie = GetCookiesArr($this->page, $this->cookie);
            $x++;
        }

        is_present($this->page, 'The premium key has been banned for sharing with other people.');
        is_present($this->page, 'This premium key is attached to a registered account', 'You need to use your username and password not the premium key!');
        is_present($this->page, 'callback_no_pass', 'This premium key does not exist.');
        if (!preg_match_all('@"(https?://[^/]+/[^\"]+)"\s*\:\s*"direct\_link\_\d+"@', $this->page, $dl)) html_error('Error: Download Link [Premium] not found!');
        $dlink = trim($dl[1][array_rand($dl[1])]);
        $FileName = urldecode(basename(parse_url($dlink, PHP_URL_PATH)));
        $this->RedirectDownload($dlink, $FileName, $this->cookie, 0, $this->link);
    }

    private function login($user, $pass) {
        $post = array();
        $post['act'] = 'login';
        $post['login'] = $user;
        $post['password'] = $pass;
        $check = $this->GetPage("http://letitbit.net/ajax/auth.php", $this->cookie, $post, "http://letitbit.net/");
        is_present($check, 'Authorization data is invalid');
        is_present($check, 'Your login attempts have been made more than 100 times in 24 hours, the next attempt will be available only tomorrow.');
        $this->cookie = GetCookiesArr($check, array('lang' => 'en'));
        if (empty($this->cookie['log']) || empty($this->cookie['pas'])) html_error('Error [log/pass cookie not found!]');

        $check = $this->GetPage('http://letitbit.net/ajax/get_attached_passwords.php', $this->cookie, 0, 'http://letitbit.net/');
        is_present($check, 'Authorization data is invalid!', 'Unknown login error.');
        $this->SaveCookies($user, $pass); // Update cookies file
        is_present($check, 'There are no attached premium', 'No premium codes attached');

        return $this->Premium();
    }

    private function IWillNameItLater($cookie, $decrypt=true) {
        if (!is_array($cookie)) {
            if (!empty($cookie)) return $decrypt ? decrypt(urldecode($cookie)) : urlencode(encrypt($cookie));
            return '';
        }
        if (count($cookie) < 1) return $cookie;
        $keys = array_keys($cookie);
        $values = array_values($cookie);
        $keys = $decrypt ? array_map('decrypt', array_map('urldecode', $keys)) : array_map('urlencode', array_map('encrypt', $keys));
        $values = $decrypt ? array_map('decrypt', array_map('urldecode', $values)) : array_map('urlencode', array_map('encrypt', $values));
        return array_combine($keys, $values);
    }

    private function SkipLoginC($user, $pass, $filename = 'letitbit_dl.php') {
        global $secretkey;
        $filename = DOWNLOAD_DIR . basename($filename);
        if (!file_exists($filename)) return $this->login($user, $pass);

        $file = file($filename);
        $savedcookies = unserialize($file[1]);
        unset($file);

        $hash = hash('crc32b', $user . ':' . $pass);
        if (array_key_exists($hash, $savedcookies)) {
            $_secretkey = $secretkey;
            $secretkey = sha1($user . ':' . $pass);
            $this->cookie = (decrypt(urldecode($savedcookies[$hash]['enc'])) == 'OK') ? $this->IWillNameItLater($savedcookies[$hash]['cookie']) : '';
            $secretkey = $_secretkey;
            if (is_array($this->cookie)) unset($this->cookie['PHPSESSID']);
            if ((is_array($this->cookie) && count($this->cookie) < 1) || empty($this->cookie)) return $this->login($user, $pass);

            $check = $this->GetPage('http://letitbit.net/ajax/get_attached_passwords.php', $this->cookie, 0, 'http://letitbit.net/');
            if (stripos($check, 'Authorization data is invalid!') !== false) return $this->login($user, $pass);
            $this->SaveCookies($user, $pass); // Update cookies file
            is_present($check, 'There are no attached premium', 'No premium codes attached');

            return $this->Premium();
        }
        return $this->login($user, $pass);
    }

    private function SaveCookies($user, $pass, $filename = 'letitbit_dl.php') {
        global $secretkey;
        $maxdays = 7; // Max days to keep cookies saved
        $filename = DOWNLOAD_DIR . basename($filename);
        if (file_exists($filename)) {
            $file = file($filename);
            $savedcookies = unserialize($file[1]);
            unset($file);

            // Remove old cookies
            foreach ($savedcookies as $k => $v) if (time() - $v['time'] >= ($maxdays * 24 * 60 * 60)) unset($savedcookies[$k]);
        } else $savedcookies = array();
        $hash = hash('crc32b', $user . ':' . $pass);
        $_secretkey = $secretkey;
        $secretkey = sha1($user . ':' . $pass);
        $savedcookies[$hash] = array('time' => time(), 'enc' => urlencode(encrypt('OK')), 'cookie' => $this->IWillNameItLater($this->cookie, false));
        $secretkey = $_secretkey;

        write_file($filename, "<?php exit(); ?>\r\n" . serialize($savedcookies));
    }

    private function AutomatePost($form) {
        if (!preg_match_all('@<input type="hidden" name="([^"]+)" value="([^"]+)" \/>@i', $form, $match)) html_error("Error: Post Data not found!");
        $post = array();
        $match = array_combine($match[1], $match[2]);
        foreach ($match as $k => $v) $post[$k] = ($v == "") ? 1 : $v;
        return $post;
    }

}

/***********************************************************************************************\
  WRITTEN BY VinhNhaTrang 15-11-2010
  Fix the premium code by code by vdhdevil
  Fix the free download code by vdhdevil & Ruud v.Tony 25-3-2011
  Updated the premium code by Ruud v.Tony 19-5-2011
  Updated for site layout change by Ruud v.Tony 24-7-2011
  Updated for joining between premium user & pass with only single key by Ruud v.Tony 13-10-2011
  Small fix in post form by Ruud v.Tony 16-12-2011 (sorry for the delay, I'm busy with my real life)
  Fix free code by Ruud v.Tony & Th3-822 for letitbit new layout 31-12-2011 (Happy new year everyone)
  Fix new login policy & free download code from letitbit by Ruud v.Tony & Th3-822 18-02-2012
  Fixed free download code by Ruud v.Tony 16-04-2012
  Fixed for redirects in download links by Th3-822 16-10-2012
  reCaptcha support added at freedl by Th3-822 24-11-2012
  Fixed free dl for extra form on some locations. - Th3-822
  FreeDl & PremiumKeyDl fixed. - Th3-822 | [19-4-2013]
\***********************************************************************************************/

?>