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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* @package moodlecore
* @subpackage backup-imscc
* @copyright 2009 Mauro Rondinelli (mauro.rondinelli [AT] uvcms.com)
* @copyright 2011 Darko Miletic (dmiletic@moodlerooms.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') or die('Direct access to this script is forbidden.');
class cc11_resource extends entities11 {
public function generate_node () {
cc112moodle::log_action('Creating Resource mods');
$response = '';
$sheet_mod_resource = cc112moodle::loadsheet(SHEET_COURSE_SECTIONS_SECTION_MODS_MOD_RESOURCE);
if (!empty(cc112moodle::$instances['instances'][MOODLE_TYPE_RESOURCE])) {
foreach (cc112moodle::$instances['instances'][MOODLE_TYPE_RESOURCE] as $instance) {
$response .= $this->create_node_course_modules_mod_resource($sheet_mod_resource, $instance);
}
}
return $response;
}
private function create_node_course_modules_mod_resource ($sheet_mod_resource, $instance) {
$link = '';
$mod_alltext = '';
$mod_summary = '';
$xpath = cc112moodle::newx_path(cc112moodle::$manifest, cc112moodle::$namespaces);
if ($instance['common_cartriedge_type'] == cc112moodle::CC_TYPE_WEBCONTENT || $instance['common_cartriedge_type'] == cc112moodle::CC_TYPE_ASSOCIATED_CONTENT) {
$resource = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $instance['resource_indentifier'] . '"]/@href');
if ($resource->length > 0) {
$resource = !empty($resource->item(0)->nodeValue) ? $resource->item(0)->nodeValue : '';
} else {
$resource = '';
}
if (empty($resource)) {
unset($resource);
$resource = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $instance['resource_indentifier'] . '"]/imscc:file/@href');
if ($resource->length > 0) {
$resource = !empty($resource->item(0)->nodeValue) ? $resource->item(0)->nodeValue : '';
} else {
$resource = '';
}
}
if (!empty($resource)) {
$link = $resource;
}
}
if ($instance['common_cartriedge_type'] == cc112moodle::CC_TYPE_WEBLINK) {
$external_resource = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $instance['resource_indentifier'] . '"]/imscc:file/@href')->item(0)->nodeValue;
if ($external_resource) {
$resource = $this->load_xml_resource(cc112moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $external_resource);
if (!empty($resource)) {
$xpath = cc112moodle::newx_path($resource, cc112moodle::$resourcens);
$resource = $xpath->query('/wl:webLink/wl:url/@href');
if ($resource->length > 0) {
$link = $resource->item(0)->nodeValue;
}
}
}
}
$find_tags = array('[#mod_instance#]',
'[#mod_name#]',
'[#mod_type#]',
'[#mod_reference#]',
'[#mod_summary#]',
'[#mod_alltext#]',
'[#mod_options#]',
'[#date_now#]');
$mod_type = 'file';
$mod_options = 'objectframe';
$mod_reference = $link;
//detected if we are dealing with html file
if (!empty($link) && ($instance['common_cartriedge_type'] == cc112moodle::CC_TYPE_WEBCONTENT)) {
$ext = strtolower(pathinfo($link, PATHINFO_EXTENSION));
if (in_array($ext, array('html', 'htm', 'xhtml'))) {
$mod_type = 'html';
//extract the content of the file
$rootpath = realpath(cc112moodle::$path_to_manifest_folder);
$htmlpath = realpath($rootpath . DIRECTORY_SEPARATOR . $link);
$dirpath = dirname($htmlpath);
if (file_exists($htmlpath)) {
$fcontent = file_get_contents($htmlpath);
$mod_alltext = clean_param($this->prepare_content($fcontent), PARAM_CLEANHTML);
$mod_reference = '';
$mod_options = '';
/**
* try to handle embedded resources
* images, linked static resources, applets, videos
*/
$doc = new DOMDocument();
$cdir = getcwd();
chdir($dirpath);
try {
$doc->loadHTML($mod_alltext);
$xpath = new DOMXPath($doc);
$attributes = array('href', 'src', 'background', 'archive', 'code');
$qtemplate = "//*[@##][not(contains(@##,'://'))]/@##";
$query = '';
foreach ($attributes as $attrname) {
if (!empty($query)) {
$query .= " | ";
}
$query .= str_replace('##', $attrname, $qtemplate);
}
$list = $xpath->query($query);
$searches = array();
$replaces = array();
foreach ($list as $resrc) {
$rpath = $resrc->nodeValue;
$rtp = realpath($rpath);
if (($rtp !== false) && is_file($rtp)) {
//file is there - we are in business
$strip = str_replace("\\", "/", str_ireplace($rootpath, '', $rtp));
$encoded_file = '$@FILEPHP@$'.str_replace('/', '$@SLASH@$', $strip);
$searches[] = $resrc->nodeValue;
$replaces[] = $encoded_file;
}
}
$mod_alltext = str_replace($searches, $replaces, $mod_alltext);
} catch (Exception $e) {
//silence the complaints
}
chdir($cdir);
$mod_alltext = self::safexml($mod_alltext);
}
}
}
$replace_values = array($instance['instance'],
self::safexml($instance['title']),
$mod_type,
$mod_reference,
'',
$mod_alltext,
$mod_options,
time());
return str_replace($find_tags, $replace_values, $sheet_mod_resource);
}
}
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