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✏️ Editing: entity11.resource.class.php

<?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) {
        global $CFG;

require_once($CFG->libdir.'/validateurlsyntax.php');

$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) {
                        $rawlink = $resource->item(0)->nodeValue;
                        if (!validateUrlSyntax($rawlink, 's+')) {
                            $changed = rawurldecode($rawlink);
                            if (validateUrlSyntax($changed, 's+')) {
                                $link = $changed;
                            } else {
                                $link = 'http://invalidurldetected/';
                            }
                        } else {
                            $link = htmlspecialchars(trim($rawlink), ENT_COMPAT, 'UTF-8', false);
                        }
                    }
                }
            }
        }

$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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