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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 backup-convert
* @subpackage cc-library
* @copyright 2011 Darko Miletic <dmiletic@moodlerooms.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('cc_interfaces.php');
require_once('xmlbase.php');
require_once('gral_lib/pathutils.php');
require_once('gral_lib/ccdependencyparser.php');
require_once('cc_version_base.php');
require_once('cc_version1.php');
require_once('cc_manifest.php');
/**
* Common Cartridge Version
*
*/
class cc_version{
const v1 = 1;
const v11 = 11;
}
class cc1_resource_type {
const webcontent = 'webcontent';
const questionbank = 'imsqti_xmlv1p2/imscc_xmlv1p0/question-bank';
const assessment = 'imsqti_xmlv1p2/imscc_xmlv1p0/assessment';
const associatedcontent = 'associatedcontent/imscc_xmlv1p0/learning-application-resource';
const discussiontopic = 'imsdt_xmlv1p0';
const weblink = 'imswl_xmlv1p0';
public static $checker = array(self::webcontent,
self::assessment,
self::associatedcontent,
self::discussiontopic,
self::questionbank,
self::weblink);
}
class cc11_resource_type {
const webcontent = 'webcontent';
const questionbank = 'imsqti_xmlv1p2/imscc_xmlv1p1/question-bank';
const assessment = 'imsqti_xmlv1p2/imscc_xmlv1p1/assessment';
const associatedcontent = 'associatedcontent/imscc_xmlv1p1/learning-application-resource';
const discussiontopic = 'imsdt_xmlv1p1';
const weblink = 'imswl_xmlv1p1';
const basiclti = 'imsbasiclti_xmlv1p0';
public static $checker = array(self::webcontent,
self::assessment,
self::associatedcontent,
self::discussiontopic,
self::questionbank,
self::weblink,
self::basiclti);
}
/**
* Resource Class
*
*/
class cc_resource implements cc_i_resource {
public $identifier = null;
public $type = null;
public $dependency = array();
public $identifierref = null;
public $href = null;
public $base = null;
public $persiststate = null;
public $metadata = array();
public $filename = null;
public $files = array();
public $isempty = null;
public $manifestroot = null;
public $folder = null;
public $instructoronly = false;
private $throwonerror = true;
public function __construct($manifest, $file, $folder='', $throwonerror = true) {
$this->throwonerror = $throwonerror;
if (is_string($manifest)) {
$this->folder = $folder;
$this->process_resource($manifest, $file, $folder);
$this->manifestroot = $manifest;
} else if (is_object($manifest)) {
$this->import_resource($file, $manifest);
}
}
/**
* Add resource
*
* @param string $fname
* @param string $location
*/
public function add_resource ($fname, $location ='') {
$this->process_resource($fname, $location, null);
}
/**
* Import a resource
*
* @param DOMElement $node
* @param cc_i_manifest $doc
*/
public function import_resource(DOMElement &$node, cc_i_manifest &$doc) {
$searchstr = "//imscc:manifest[@identifier='".$doc->manifestID().
"']/imscc:resources/imscc:resource";
$this->identifier = $this->get_attr_value($node, "identifier");
$this->type = $this->get_attr_value($node, "type");
$this->href = $this->get_attr_value($node, "href");
$this->base = $this->get_attr_value($node, "base");
$this->persiststate = null;
$nodo = $doc->nodeList($searchstr."[@identifier='".
$this->identifier."']/metadata/@href");
$this->metadata = $nodo->nodeValue;
$this->filename = $this->href;
$nlist = $doc->nodeList($searchstr."[@identifier='".
$this->identifier."']/imscc:file/@href");
$this->files = array();
foreach ($nlist as $file) {
$this->files[] = $file->nodeValue;
}
$nlist = $doc->nodeList($searchstr."[@identifier='".
$this->identifier."']/imscc:dependency/@identifierref");
$this->dependency = array();
foreach ($nlist as $dependency) {
$this->dependency[] = $dependency->nodeValue;
}
$this->isempty = false;
}
/**
* Get a attribute value
*
* @param DOMElement $nod
* @param string $name
* @param string $ns
* @return string
*/
public function get_attr_value(&$nod, $name, $ns=null) {
if (is_null($ns)) {
return ($nod->hasAttribute($name) ? $nod->getAttribute($name) : null);
}
return ($nod->hasAttributeNS($ns, $name) ? $nod->getAttributeNS($ns, $name) : null);
}
/**
* Process a resource
*
* @param string $manifestroot
* @param string $fname
* @param string $folder
*/
public function process_resource($manifestroot, &$fname, $folder) {
$file = empty($folder) ? $manifestroot.'/'.$fname : $manifestroot.'/'.$folder.'/'.$fname;
if (!file_exists($file) && $this->throwonerror) {
throw new Exception('The file doesnt exist!');
}
GetDepFiles($manifestroot, $fname, $this->folder, $this->files);
array_unshift($this->files, $folder.$fname);
$this->init_empty_new();
$this->href = $folder.$fname;
$this->identifierref = $folder.$fname;
$this->filename = $fname;
$this->isempty = false;
$this->folder = $folder;
}
public function adjust_path($mroot, $fname) {
$result = null;
if (file_exists($fname->filename)) {
$result = pathDiff($fname->filename, $mroot);
} else if (file_exists($mroot.$fname->filename) || file_exists($mroot.DIRECTORY_SEPARATOR.$fname->filename)) {
$result = $fname->filename;
toUrlPath($result);
$result = trim($result, "/");
}
return $result;
}
public function init_clean() {
$this->identifier = null;
$this->type = null;
$this->href = null;
$this->base = null;
$this->metadata = array();
$this->dependency = array();
$this->identifierref = null;
$this->persiststate = null;
$this->filename = '';
$this->files = array();
$this->isempty = true;
}
public function init_empty_new() {
$this->identifier = cc_helpers::uuidgen('I_', '_R');
$this->type = null;
$this->href = null;
$this->persiststate = null;
$this->filename = null;
$this->isempty = false;
$this->identifierref = null;
}
public function get_manifestroot() {
return $this->manifestroot;
}
}