Current File : /home/tjamichg/cursos.tjamich.gob.mx/main/forum/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.document
*/
session_cache_limiter('public');
require_once __DIR__.'/../inc/global.inc.php';
api_protect_course_script(true);
$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');
$doc_url = $_GET['file'];
//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);
$tbl_forum_attachment = Database::get_course_table(TABLE_FORUM_ATTACHMENT);
$tbl_forum_post = Database::get_course_table(TABLE_FORUM_POST);
$course_id = api_get_course_int_id();
$courseInfo = api_get_course_info_by_id($course_id);
$sql = 'SELECT thread_id, forum_id,filename
FROM '.$tbl_forum_post.' f
INNER JOIN '.$tbl_forum_attachment.' a
ON a.post_id=f.post_id
WHERE
f.c_id = '.$course_id.' AND
a.c_id = '.$course_id.' AND
path LIKE BINARY "'.Database::escape_string($doc_url).'"';
$result = Database::query($sql);
$row = Database::fetch_array($result);
if (empty($row)) {
api_not_allowed();
}
$forum_thread_visibility = api_get_item_visibility(
$courseInfo,
TOOL_FORUM_THREAD,
$row['thread_id'],
api_get_session_id()
);
$forum_forum_visibility = api_get_item_visibility(
$courseInfo,
TOOL_FORUM,
$row['forum_id'],
api_get_session_id()
);
if ($forum_thread_visibility == 1 && $forum_forum_visibility == 1) {
$full_file_name = api_get_path(SYS_COURSE_PATH).api_get_course_path().'/upload/forum/'.$doc_url;
if (Security::check_abs_path(
$full_file_name,
api_get_path(SYS_COURSE_PATH).$courseInfo['path'].'/upload/forum/'
)) {
// launch event
Event::event_download($doc_url);
$result = DocumentManager::file_send_for_download(
$full_file_name,
true,
$row['filename']
);
if ($result === false) {
api_not_allowed(true);
}
}
}
api_not_allowed();
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