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88 lines
2.5 KiB
88 lines
2.5 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This file is responsible for passing requested documents to the browser.
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* Html files are parsed to fix a few problems with URLs,
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* but this code will hopefully be replaced soon by an Apache URL
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* rewrite mechanism.
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*
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* @package chamilo.document
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*/
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session_cache_limiter('public');
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require_once __DIR__.'/../inc/global.inc.php';
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api_protect_course_script(true);
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$this_section = SECTION_COURSES;
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// IMPORTANT to avoid caching of documents
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header('Expires: Wed, 01 Jan 1990 00:00:00 GMT');
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header('Cache-Control: public');
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header('Pragma: no-cache');
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$doc_url = $_GET['file'];
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//change the '&' that got rewritten to '///' by mod_rewrite back to '&'
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$doc_url = str_replace('///', '&', $doc_url);
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//still a space present? it must be a '+' (that got replaced by mod_rewrite)
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$doc_url = str_replace(' ', '+', $doc_url);
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$doc_url = str_replace('/..', '', $doc_url);
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$tbl_forum_attachment = Database::get_course_table(TABLE_FORUM_ATTACHMENT);
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$tbl_forum_post = Database::get_course_table(TABLE_FORUM_POST);
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$course_id = api_get_course_int_id();
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$courseInfo = api_get_course_info_by_id($course_id);
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$sql = 'SELECT thread_id, forum_id,filename
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FROM '.$tbl_forum_post.' f
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INNER JOIN '.$tbl_forum_attachment.' a
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ON a.post_id=f.post_id
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WHERE
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f.c_id = '.$course_id.' AND
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a.c_id = '.$course_id.' AND
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path LIKE BINARY "'.Database::escape_string($doc_url).'"';
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$result = Database::query($sql);
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$row = Database::fetch_array($result);
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if (empty($row)) {
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api_not_allowed();
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}
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$forum_thread_visibility = api_get_item_visibility(
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$courseInfo,
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TOOL_FORUM_THREAD,
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$row['thread_id'],
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api_get_session_id()
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);
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$forum_forum_visibility = api_get_item_visibility(
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$courseInfo,
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TOOL_FORUM,
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$row['forum_id'],
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api_get_session_id()
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);
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if ($forum_thread_visibility == 1 && $forum_forum_visibility == 1) {
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$full_file_name = api_get_path(SYS_COURSE_PATH).api_get_course_path().'/upload/forum/'.$doc_url;
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if (Security::check_abs_path(
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$full_file_name,
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api_get_path(SYS_COURSE_PATH).$courseInfo['path'].'/upload/forum/'
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)) {
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// launch event
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Event::event_download($doc_url);
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$result = DocumentManager::file_send_for_download(
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$full_file_name,
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true,
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$row['filename']
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);
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if ($result === false) {
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api_not_allowed(true);
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}
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}
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}
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api_not_allowed();
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