mirror of
https://github.com/moodle/moodle.git
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133 lines
5.3 KiB
PHP
133 lines
5.3 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Provides support for the conversion of moodle1 backup to the moodle2 format
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*
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* @package mod
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* @subpackage imscp
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* @copyright 2011 Andrew Davis <andrew@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* imscp conversion handler. This resource handler is called by moodle1_mod_resource_handler
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*/
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class moodle1_mod_imscp_handler extends moodle1_resource_successor_handler {
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/** @var moodle1_file_manager the file manager instance */
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protected $fileman = null;
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/**
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* Converts /MOODLE_BACKUP/COURSE/MODULES/MOD/RESOURCE data
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* Called by moodle1_mod_resource_handler::process_resource()
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*/
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public function process_legacy_resource(array $data, array $raw = null) {
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$instanceid = $data['id'];
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$currentcminfo = $this->get_cminfo($instanceid);
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$moduleid = $currentcminfo['id'];
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$contextid = $this->converter->get_contextid(CONTEXT_MODULE, $moduleid);
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// prepare the new imscp instance record
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$imscp = array();
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$imscp['id'] = $data['id'];
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$imscp['name'] = $data['name'];
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$imscp['intro'] = $data['intro'];
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$imscp['introformat'] = $data['introformat'];
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$imscp['revision'] = 1;
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$imscp['keepold'] = 1;
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$imscp['structure'] = null;
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$imscp['timemodified'] = $data['timemodified'];
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// prepare a fresh new file manager for this instance
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$this->fileman = $this->converter->get_file_manager($contextid, 'mod_imscp');
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// convert course files embedded into the intro
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$this->fileman->filearea = 'intro';
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$this->fileman->itemid = 0;
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$imscp['intro'] = moodle1_converter::migrate_referenced_files($imscp['intro'], $this->fileman);
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// migrate package backup file
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if ($data['reference']) {
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$packagename = basename($data['reference']);
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$packagepath = $this->converter->get_tempdir_path().'/moddata/resource/'.$data['id'].'/'.$packagename;
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if (file_exists($packagepath)) {
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$this->fileman->filearea = 'backup';
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$this->fileman->itemid = 1;
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$this->fileman->migrate_file('moddata/resource/'.$data['id'].'/'.$packagename);
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} else {
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$this->log('missing imscp package', backup::LOG_WARNING, 'moddata/resource/'.$data['id'].'/'.$packagename);
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}
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}
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// migrate extracted package data
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$this->fileman->filearea = 'content';
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$this->fileman->itemid = 1;
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$this->fileman->migrate_directory('moddata/resource/'.$data['id']);
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// parse manifest
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$structure = $this->parse_structure($this->converter->get_tempdir_path().'/moddata/resource/'.$data['id'].'/imsmanifest.xml');
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$imscp['structure'] = is_array($structure) ? serialize($structure) : null;
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// write imscp.xml
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$this->open_xml_writer("activities/imscp_{$moduleid}/imscp.xml");
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$this->xmlwriter->begin_tag('activity', array('id' => $instanceid, 'moduleid' => $moduleid,
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'modulename' => 'imscp', 'contextid' => $contextid));
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$this->write_xml('imscp', $imscp, array('/imscp/id'));
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$this->xmlwriter->end_tag('activity');
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$this->close_xml_writer();
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// write inforef.xml
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$this->open_xml_writer("activities/imscp_{$moduleid}/inforef.xml");
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$this->xmlwriter->begin_tag('inforef');
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$this->xmlwriter->begin_tag('fileref');
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foreach ($this->fileman->get_fileids() as $fileid) {
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$this->write_xml('file', array('id' => $fileid));
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}
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$this->xmlwriter->end_tag('fileref');
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$this->xmlwriter->end_tag('inforef');
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$this->close_xml_writer();
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}
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/// internal implementation details follow /////////////////////////////////
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/**
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* Parse the IMS package structure for the $imscp->structure field
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*
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* @param string $manifestfilepath the full path to the manifest file to parse
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*/
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protected function parse_structure($manifestfilepath) {
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global $CFG;
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if (!file_exists($manifestfilepath)) {
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$this->log('missing imscp manifest file', backup::LOG_WARNING);
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return null;
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}
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$manifestfilecontents = file_get_contents($manifestfilepath);
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if (empty($manifestfilecontents)) {
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$this->log('empty imscp manifest file', backup::LOG_WARNING);
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return null;
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}
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require_once($CFG->dirroot.'/mod/imscp/locallib.php');
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return imscp_parse_manifestfile($manifestfilecontents);
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}
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}
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