Current File : /home/tjamichg/cursos.tjamich.gob.mx/main/calendar/download.php
<?php
/* For licensing terms, see /license.txt */
/**
* This file is responsible for passing requested documents to the browser.
* Html files are parsed to fix a few problems with URLs,
* but this code will hopefully be replaced soon by an Apache URL
* rewrite mechanism.
*
* @package chamilo.calendar
*/
session_cache_limiter('public');
require_once __DIR__.'/../inc/global.inc.php';
$this_section = SECTION_COURSES;
// IMPORTANT to avoid caching of documents
header('Expires: Wed, 01 Jan 1990 00:00:00 GMT');
header('Cache-Control: public');
header('Pragma: no-cache');
$course_id = isset($_REQUEST['course_id']) ? (int) $_REQUEST['course_id'] : api_get_course_int_id();
$user_id = api_get_user_id();
$course_info = api_get_course_info_by_id($course_id);
$doc_url = $_REQUEST['file'];
if (empty($course_id) || empty($doc_url)) {
api_not_allowed();
}
$session_id = api_get_session_id();
$is_user_is_subscribed = CourseManager::is_user_subscribed_in_course(
$user_id,
$course_info['code'],
true,
$session_id
);
if (!api_is_allowed_to_edit() && !$is_user_is_subscribed) {
api_not_allowed();
}
//change the '&' that got rewritten to '///' by mod_rewrite back to '&'
$doc_url = str_replace('///', '&', $doc_url);
//still a space present? it must be a '+' (that got replaced by mod_rewrite)
$doc_url = str_replace(' ', '+', $doc_url);
$doc_url = str_replace('/..', '', $doc_url); //echo $doc_url;
$full_file_name = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/upload/calendar/'.$doc_url;
//if the rewrite rule asks for a directory, we redirect to the document explorer
if (is_dir($full_file_name)) {
while ($doc_url[$dul = strlen($doc_url) - 1] == '/') {
$doc_url = substr($doc_url, 0, $dul);
}
// create the path
$document_explorer = api_get_path(WEB_COURSE_PATH).$course_info['path']; // home course path
// redirect
header('Location: '.$document_explorer);
exit;
}
$tbl_agenda_attachment = Database::get_course_table(TABLE_AGENDA_ATTACHMENT);
// launch event
Event::event_download($doc_url);
$sql = 'SELECT filename FROM '.$tbl_agenda_attachment.'
WHERE
c_id = '.$course_id.' AND
path LIKE BINARY "'.Database::escape_string($doc_url).'"';
$result = Database::query($sql);
if (Database::num_rows($result)) {
$row = Database::fetch_array($result);
$title = str_replace(' ', '_', $row['filename']);
if (Security::check_abs_path(
$full_file_name,
api_get_path(SYS_COURSE_PATH).$course_info['path'].'/upload/calendar/'
)) {
$result = DocumentManager::file_send_for_download($full_file_name, true, $title);
if ($result === false) {
api_not_allowed(true);
}
}
}
api_not_allowed();
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