2 // This file is part of Moodle - http://moodle.org/
4 // Moodle is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // Moodle is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
18 * @subpackage backup-imscc
19 * @copyright 2009 Mauro Rondinelli (mauro.rondinelli [AT] uvcms.com)
20 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
22 defined('MOODLE_INTERNAL') or die('Direct access to this script is forbidden.');
24 require_once($CFG->dirroot
. '/backup/cc/includes/constants.php');
25 require_once($CFG->dirroot
. '/backup/cc/cc2moodle.php');
27 function cc_convert ($dir) {
30 $manifest_file = $dir . DIRECTORY_SEPARATOR
. 'imsmanifest.xml';
31 $moodle_file = $dir . DIRECTORY_SEPARATOR
. 'moodle.xml';
32 $schema_file = 'cc' . DIRECTORY_SEPARATOR
. '' . DIRECTORY_SEPARATOR
. 'schemas' . DIRECTORY_SEPARATOR
. 'cclibxml2validator.xsd';
34 if (is_readable($manifest_file) && !is_readable($moodle_file)) {
36 $is_cc = detect_cc_format($manifest_file);
40 $detected_requirements = detect_requirements();
42 if (!$detected_requirements["php5"]) {
43 echo $OUTPUT->notification(get_string('cc_import_req_php5', 'imscc'));
47 if (!$detected_requirements["dom"]) {
48 echo $OUTPUT->notification(get_string('cc_import_req_dom', 'imscc'));
52 if (!$detected_requirements["libxml"]) {
53 echo $OUTPUT->notification(get_string('cc_import_req_libxml', 'imscc'));
57 if (!$detected_requirements["libxmlminversion"]) {
58 echo $OUTPUT->notification(get_string('cc_import_req_libxmlminversion', 'imscc'));
61 if (!$detected_requirements["xsl"]) {
62 echo $OUTPUT->notification(get_string('cc_import_req_xsl', 'imscc'));
66 echo get_string('cc2moodle_checking_schema', 'imscc') . '<br />';
68 $cc_manifest = new DOMDocument();
70 if ($cc_manifest->load($manifest_file)) {
71 if ($cc_manifest->schemaValidate($schema_file)) {
73 echo get_string('cc2moodle_valid_schema', 'imscc') . '<br />';
75 $cc2moodle = new cc2moodle($manifest_file);
77 if (!$cc2moodle->is_auth()) {
78 return $cc2moodle->generate_moodle_xml();
80 echo $OUTPUT->notification(get_string('cc2moodle_req_auth', 'imscc'));
85 echo $OUTPUT->notification(get_string('cc2moodle_invalid_schema', 'imscc'));
90 echo $OUTPUT->notification(get_string('cc2moodle_manifest_dont_load', 'imscc'));
99 function detect_requirements () {
101 if (floor(phpversion()) >= 5) {
102 $detected["php5"] = true;
104 $detected["php5"] = false;
107 $detected["xsl"] = extension_loaded('xsl');
108 $detected['dom'] = extension_loaded('dom');
109 $detected['libxml'] = extension_loaded('libxml');
110 $detected['libxmlminversion'] = extension_loaded('libxml') && version_compare(LIBXML_DOTTED_VERSION
, '2.6.30', '>=');
116 function detect_cc_format ($xml_file) {
119 $xml_snippet = file_get_contents($xml_file, 0, NULL, 0, 500);
121 if (!empty($xml_snippet)) {
123 $xml_snippet = strtolower($xml_snippet);
124 $xml_snippet = preg_replace('/\s*/m', '', $xml_snippet);
125 $xml_snippet = str_replace("'", '', $xml_snippet);
126 $xml_snippet = str_replace('"', '', $xml_snippet);
128 $search_string = "xmlns=" . NS_COMMON_CARTRIDGE
;
130 $inpos = strpos($xml_snippet, $search_string);