[rapidleech][d] google_com.php

<?php

if (!defined('RAPIDLEECH')) {
    require_once ("index.html");
    exit();
}

class google_com extends DownloadClass {
    public $fNames = array('odt' => 'OpenDocument Text', 'docx' => 'Microsoft Word', 'rtf' => 'Rich Text Format', 'txt' => 'Plain Text', 'pdf' => 'PDF Document', 'epub' => 'EPUB Publication', 'zip' => 'Zipped html Document', 'pptx' => 'Microsoft PowerPoint', 'ods' => 'OpenDocument Spreadsheet', 'xlsx' => 'Microsoft Excel'), $dFormats = array('odt', 'docx', 'rtf', 'txt', 'pdf', 'epub', 'zip'), $pFormats = array('pptx', 'pdf'), $ssFormats = array('ods', 'xlsx', 'pdf', 'zip'), $sFormats = array(13 => 'ods', 420 => 'xlsx', 12 => 'pdf');
    public function Download($link) {
        $this->checkBug78902($link);
        if (!preg_match('@https?://(?:[\w\-]+\.)*(?:drive|docs)\.google\.com/(?:(?:folderview|open|(?:a/[\w\-\.]+/)?uc)\?(?:[\w\-\%]+=[\w\-\%]*&)*id=|(?:folder|file|document|presentation|spreadsheets)/d/|spreadsheet/ccc\?(?:[\w\-\%]+=[\w\-\%]*&)*key=|drive/folders/)([\w\-]{28,})@i', $link, $this->ID)) html_error('File/Folder ID not found at link.');
        $this->ID = $this->ID[1];

        // Use /open link for check if ID exists and also get it's type.
        $page = $this->GetPage('https://drive.google.com/open?id='.$this->ID);
        if (substr($page, 9, 3) == '404') html_error('File/Folder doesn\'t exists.');
        if (substr($page, 9, 1) != '3' || !preg_match('@\nLocation: https?://(?:[\w\-]+\.)*(?:drive|docs)\.google\.com/(?:drive/)?(\w+)[\?/]@i', $page, $type)) html_error('Cannot find /open redirect.');

        switch (strtolower($type[1])) {
            case 'file': $this->File();break;
            case 'folder': case 'folders': case 'folderview': $this->Folder();break;
            case 'document': $this->Document();break;
            case 'presentation': $this->Presentation();break;
            case 'spreadsheets': $this->Spreadsheets();break; // New spreadsheets
            case 'spreadsheet': $this->Spreadsheet();break;
            default: html_error('Unknown /open redirect.');break;
        }
    }

    private function checkBug78902($link = '') {
        // 7.4 - 7.4.2, 7.3.11 - 7.3.14, 7.2.24 - 7.2.*
        if (substr(PHP_OS, 0, 3) == 'WIN' || version_compare(PHP_VERSION, '7.2.24', '<') || version_compare(PHP_VERSION, '7.4.2', '>') || !version_compare(PHP_VERSION, '7.3.14', '<=')) return;

        if (empty($link)) echo('<div id="mesg" width="100%" align="center"></div><br />');
        $this->changeMesg('Warning: Running on PHP v' . PHP_VERSION . ' (Please Upgrade)<br />Downloads with this PHP release will be affected by the bug <a href="https://bugs.php.net/bug.php?id=78902">#78902</a> and will leak RAM until exhausted.<br />File may stop at a random size (up to ~1 GB).');

        if (!empty($_GET['method']) && $_GET['method'] == '78902') return;
        if (!empty($link)) {
            $form = $this->DefaultParamArr($link);
            $form['method'] = '78902';

            echo "\n<form name='f78902' action='{$_SERVER['SCRIPT_NAME']}' method='POST'>\n";
            foreach ($form as $name => $input) echo "\t<input type='hidden' name='$name' id='$name' value='" . htmlspecialchars($input, ENT_QUOTES) . "' />\n";
            echo "\t<div><br /><input type='submit' value='Continue' /></div></form>\n";
            include(TEMPLATE_DIR.'footer.php');
            exit();
        }
    }

    private function isPrivate($page) {
        if (substr($page, 9, 2) == '30') is_present($page, 'Location: https://www.google.com/accounts/ServiceLogin', 'Private File/Folder.');
        else is_present($page, "0; url='https://www.google.com/accounts/ServiceLogin", 'Private File/Folder.');
    }

    private function File() {
        $page = $this->GetPage('https://drive.google.com/uc?export=download&confirm=T822&id='.$this->ID, "download_warning_13058876669334088843_{$this->ID}=T822");
        $this->isPrivate($page);
        if (substr($page, 9, 1) != '3' || !preg_match('@\nLocation: (https?://(?:[\w\-]+\.)*googleusercontent\.com/[^\r\n]+)@i', $page, $dl)) html_error('File\'s download-link not found.');
        $this->RedirectDownload($dl[1], 'fGoogle', 0, 0, 'https://drive.google.com/file/d/'.$this->ID);
    }

    private function Folder() {
        if (isset($_GET['audl'])) html_error('Cannot check folder in audl.');
        $page = $this->GetPage('https://drive.google.com/drive/folders/'.$this->ID);
        $this->isPrivate($page);
        if (!preg_match_all('@\\\x5b\\\x22([\w\-]{28,})\\\x22,@i', $page, $ids) && !preg_match_all('@\[(\\\x22)([\w\-]{28,})\1,\[\1[\w\-]{28,}\1\]\\\n,\1(?>.*?\1),\1(?!application\\\/vnd\.google-apps\.folder)@i', $page, $ids, PREG_SET_ORDER)) html_error('Empty folder?');
        $ids = $ids[1];
        $links = array();
        foreach ($ids as $id) $links[] = "https://drive.google.com/uc?id=$id&export=download";
        $this->moveToAutoDownloader($links);
    }

    private function Document() {
        $url = 'https://docs.google.com/document/d/'.$this->ID;
        $page = $this->GetPage("$url/edit");
        $this->isPrivate($page);
        if (empty($_GET['T8']['format']) && !isset($_GET['audl'])) $this->formatSelector(1);
        $format = (!empty($_GET['T8']['format']) && in_array($_GET['T8']['format'], $this->dFormats)) ? $_GET['T8']['format'] : reset($this->dFormats);
        $this->RedirectDownload("$url/export?format=$format", 'dGoogle', 0, 0, $url);
    }

    private function Presentation() {
        $url = 'https://docs.google.com/presentation/d/'.$this->ID;
        $page = $this->GetPage("$url/edit");
        $this->isPrivate($page);
        if (empty($_GET['T8']['format']) && !isset($_GET['audl'])) $this->formatSelector(2);
        $format = (!empty($_GET['T8']['format']) && in_array($_GET['T8']['format'], $this->pFormats)) ? $_GET['T8']['format'] : reset($this->pFormats);
        $this->RedirectDownload("$url/export/$format", 'pGoogle', 0, 0, $url);
    }

    private function Spreadsheets() {
        $url = 'https://docs.google.com/spreadsheets/d/'.$this->ID;
        $page = $this->GetPage("$url/edit");
        $this->isPrivate($page);
        if (empty($_GET['T8']['format']) && !isset($_GET['audl'])) $this->formatSelector(3);
        $format = (!empty($_GET['T8']['format']) && in_array($_GET['T8']['format'], $this->ssFormats)) ? $_GET['T8']['format'] : reset($this->ssFormats);
        $this->RedirectDownload("$url/export/$format", 'ssGoogle', 0, 0, $url);
    }

    private function Spreadsheet() {
        $url = 'https://docs.google.com/spreadsheet';
        $page = $this->GetPage("$url/ccc?key=".$this->ID);
        $this->isPrivate($page);
        $cookie = GetCookiesArr($page);

        if (substr($page, 9, 1) != '3' || !preg_match('@\nLocation: (https?://(?:[\w\-]+\.)*google\.com/[^\r\n]+)@i', $page, $redir)) html_error("Redirect 1 not found");
        $page = $this->GetPage($redir[1], $cookie);
        $cookie = GetCookiesArr($page, $cookie);
        if (empty($cookie['PREF'])) html_error("Cookie 'PREF' not found");

        $page = $this->GetPage("$url/ccc?key=".$this->ID, $cookie);

        if (empty($_GET['T8']['format']) && !isset($_GET['audl'])) $this->formatSelector(4);
        if (empty($_GET['T8']['format']) || ($fmcmd = array_search($_GET['T8']['format'], $this->sFormats)) === false) {
            reset($this->sFormats);
            $fmcmd = key($this->sFormats);
        }
        if (($cmdUrl = cut_str($page, '/fm?id=', '"')) == false || !preg_match('@[\w\-\.]+@i', $cmdUrl, $cmdId)) html_error('Download ID not found.');
        $this->RedirectDownload("$url/fm?id={$cmdId[0]}&fmcmd=$fmcmd", 'sGoogle', $cookie, 0, "$url/ccc?key=".$this->ID);
    }

    private function formatSelector($type = 1) {
        switch ($type) {
            case 1: $tName = 'Document';$formats = $this->dFormats;break;
            case 2: $tName = 'Presentation';$formats = $this->pFormats;break;
            case 3: $tName = 'Spreadsheets';$formats = $this->ssFormats;break;
            case 4: $tName = 'Spreadsheet';$formats = $this->sFormats;break;
            default: html_error('formatSelector: Unknown type.');
        }
        if (count($formats) == 1) return $_GET['T8'] = array('format' => reset($formats));
        echo "\n<br /><br /><h3 style='text-align: center;'>$tName format selector.</h4>";
        echo "\n<center><form name='GD_FS' action='{$GLOBALS['PHP_SELF']}' method='POST'>\n";
        echo "<select name='T8[format]' id='GD_ext'>\n";
        foreach ($formats as $ext) echo "<option value='$ext'>".(!empty($this->fNames[$ext]) ? $this->fNames[$ext]." (.$ext)" : ".$ext")."</option>\n";
        echo "</select>\n";
        $data = $this->DefaultParamArr('https://drive.google.com/open?id='.$this->ID);
        foreach ($data as $n => $v) echo("<input type='hidden' name='$n' id='FS_$n' value='$v' />\n");
        echo "<input type='submit' name='Th3-822' value='".lang(209)."' />\n";
        echo "</form></center>\n</body>\n</html>";
        exit;
    }

    // Add a Range header for get the filesize on chunked file downloads
    public function RedirectDownload($link, $FileName = 0, $cookie = 0, $post = 0, $referer = 0, $force_name = 0, $auth = 0, $addon = array()) {
        $referer .= "\r\nRange: bytes=0-";
        return parent::RedirectDownload($link, $FileName, $cookie, $post, $referer, $force_name, $auth, $addon);
    }

    public function CheckBack(&$headers) {
        $this->checkBug78902();
        if (substr($headers, 9, 3) == '416') html_error('[google_com.php] Plugin needs a fix, \'Range\' method is not working.');
        if (stripos($headers, "\nTransfer-Encoding: chunked") !== false) {
            global $fp, $sFilters;
            if (empty($fp) || !is_resource($fp)) html_error('Error: Your rapidleech copy is outdated and it doesn\'t support functions required by this plugin.');
            if (!in_array('dechunk', stream_get_filters())) html_error('Error: dechunk filter not available, cannot download chunked file.');
            if (!isset($sFilters) || !is_array($sFilters)) $sFilters = array();
            if (empty($sFilters['dechunk'])) $sFilters['dechunk'] = stream_filter_append($fp, 'dechunk', STREAM_FILTER_READ);
            if (!$sFilters['dechunk']) html_error('Error: Unknown error while initializing dechunk filter, cannot download chunked file.');
            // Little hack to get the filesize.
            $headers = preg_replace('@\nContent-Range\: bytes 0-\d+/@i', "\nContent-Length: ", $headers, 1);
        }
    }
}

// [11-2-2014]  Written by Th3-822.
// [23-12-2014]  Added support for new spreadsheets format/urls & Some workarounds to get filesize on chunked downloads... - Th3-822
// [30-4-2018]  Fixed Folders. - Th3-822