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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_utils.php');require_once('cc_version_base.php');require_once('cc_organization.php');/*** Version 1 class of Common Cartridge**/class cc_version1 extends cc_version_base {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';/** @var array CC URL profiles. */protected $ccnsnames = [];public static $checker = array(self::webcontent,self::assessment,self::associatedcontent,self::discussiontopic,self::questionbank,self::weblink);/*** Validate if the type are valid or not** @param string $type* @return bool*/public function valid($type) {return in_array($type, self::$checker);}public function __construct() {$this->ccnamespaces = array('imscc' => 'http://www.imsglobal.org/xsd/imscc/imscp_v1p1','lomimscc' => 'http://ltsc.ieee.org/xsd/imscc/LOM','lom' => 'http://ltsc.ieee.org/xsd/LOM','voc' => 'http://ltsc.ieee.org/xsd/LOM/vocab','xsi' => 'http://www.w3.org/2001/XMLSchema-instance');$this->ccnsnames = array('imscc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/imscp_v1p2_localised.xsd','lom' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_2/lomLoose_localised.xsd','lomimscc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_1/lomLoose_localised.xsd','voc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_2/vocab/loose.xsd');$this->ccversion = '1.0.0';$this->camversion = '1.0.0';$this->_generator = 'Moodle 2 Common Cartridge generator';}protected function on_create(DOMDocument &$doc, $rootmanifestnode = null, $nmanifestID = null) {$doc->formatOutput = true;$doc->preserveWhiteSpace = true;$this->manifestID = is_null($nmanifestID) ? cc_helpers::uuidgen('M_') : $nmanifestID;$mUUID = $doc->createAttribute('identifier');$mUUID->nodeValue = $this->manifestID;if (is_null($rootmanifestnode)) {if (!empty($this->_generator)) {$comment = $doc->createComment($this->_generator);$doc->appendChild($comment);}$rootel = $doc->createElementNS($this->ccnamespaces['imscc'], 'manifest');$rootel->appendChild($mUUID);$doc->appendChild($rootel);// Add all namespaces.foreach ($this->ccnamespaces as $key => $value) {$dummy_attr = $key.":dummy";$doc->createAttributeNS($value, $dummy_attr);}// Add location of schemas.$schemaLocation = '';foreach ($this->ccnsnames as $key => $value) {$vt = empty($schemaLocation) ? '' : ' ';$schemaLocation .= $vt.$this->ccnamespaces[$key].' '.$value;}$aSchemaLoc = $doc->createAttributeNS($this->ccnamespaces['xsi'], 'xsi:schemaLocation');$aSchemaLoc->nodeValue = $schemaLocation;$rootel->appendChild($aSchemaLoc);} else {$rootel = $doc->createElementNS($this->ccnamespaces['imscc'], 'imscc:manifest');$rootel->appendChild($mUUID);}$metadata = $doc->createElementNS($this->ccnamespaces['imscc'], 'metadata');$schema = $doc->createElementNS($this->ccnamespaces['imscc'], 'schema', 'IMS Common Cartridge');$schemaversion = $doc->createElementNS($this->ccnamespaces['imscc'], 'schemaversion', $this->ccversion);$metadata->appendChild($schema);$metadata->appendChild($schemaversion);$rootel->appendChild($metadata);if (!is_null($rootmanifestnode)) {$rootmanifestnode->appendChild($rootel);}$organizations = $doc->createElementNS($this->ccnamespaces['imscc'], 'organizations');$rootel->appendChild($organizations);$resources = $doc->createElementNS($this->ccnamespaces['imscc'], 'resources');$rootel->appendChild($resources);return true;}protected function update_attribute(DOMDocument &$doc, $attrname, $attrvalue, DOMElement &$node) {$busenew = (is_object($node) && $node->hasAttribute($attrname));$nResult = null;if (!$busenew && is_null($attrvalue)) {$node->removeAttribute($attrname);} else {$nResult = $busenew ? $node->getAttributeNode($attrname) : $doc->createAttribute($attrname);$nResult->nodeValue = $attrvalue;if (!$busenew) {$node->appendChild($nResult);}}return $nResult;}protected function update_attribute_ns(DOMDocument &$doc, $attrname, $attrnamespace,$attrvalue, DOMElement &$node) {$busenew = (is_object($node) && $node->hasAttributeNS($attrnamespace, $attrname));$nResult = null;if (!$busenew && is_null($attrvalue)) {$node->removeAttributeNS($attrnamespace, $attrname);} else {$nResult = $busenew ? $node->getAttributeNodeNS($attrnamespace, $attrname) :$doc->createAttributeNS($attrnamespace, $attrname);$nResult->nodeValue = $attrvalue;if (!$busenew) {$node->appendChild($nResult);}}return $nResult;}protected function get_child_node(DOMDocument &$doc, $itemname, DOMElement &$node) {$nlist = $node->getElementsByTagName($itemname);$item = is_object($nlist) && ($nlist->length > 0) ? $nlist->item(0) : null;return $item;}protected function update_child_item(DOMDocument &$doc, $itemname, $itemvalue, DOMElement &$node, $attrtostore=null) {$tnode = $this->get_child_node($doc, 'title', $node);$usenew = is_null($tnode);$tnode = $usenew ? $doc->createElementNS($this->ccnamespaces['imscc'], $itemname) : $tnode;if (!is_null($attrtostore)) {foreach ($attrtostore as $key => $value) {$this->update_attribute($doc, $key, $value, $tnode);}}$tnode->nodeValue = $itemvalue;if ($usenew) {$node->appendChild($tnode);}}protected function update_items($items, DOMDocument &$doc, DOMElement &$xmlnode) {foreach ($items as $key => $item) {$itemnode = $doc->createElementNS($this->ccnamespaces['imscc'], 'item');$this->update_attribute($doc, 'identifier' , $key , $itemnode);$this->update_attribute($doc, 'identifierref', $item->identifierref, $itemnode);$this->update_attribute($doc, 'parameters' , $item->parameters , $itemnode);if (!empty($item->title)) {$titlenode = $doc->createElementNS($this->ccnamespaces['imscc'],'title',$item->title);$itemnode->appendChild($titlenode);}if ($item->has_child_items()) {$this->update_items($item->childitems, $doc, $itemnode);}$xmlnode->appendChild($itemnode);}}/*** Create a Resource (How to)** @param cc_i_resource $res* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_resource(cc_i_resource &$res, DOMDocument &$doc, $xmlnode=null) {$usenew = is_object($xmlnode);$dnode = $usenew ? $xmlnode : $doc->createElementNS($this->ccnamespaces['imscc'], "resource");$this->update_attribute($doc, 'identifier', $res->identifier, $dnode);$this->update_attribute($doc, 'type', $res->type, $dnode);!is_null($res->href) ? $this->update_attribute($doc, 'href', $res->href, $dnode) : null;$this->update_attribute($doc, 'base', $res->base, $dnode);foreach ($res->files as $file) {$nd = $doc->createElementNS($this->ccnamespaces['imscc'], 'file');$ndatt = $doc->createAttribute('href');$ndatt->nodeValue = $file;$nd->appendChild($ndatt);$dnode->appendChild($nd);}$this->resources[$res->identifier] = $res;$this->resources_ind[$res->files[0]] = $res->identifier;foreach ($res->dependency as $dependency) {$nd = $doc->createElementNS($this->ccnamespaces['imscc'], 'dependency');$ndatt = $doc->createAttribute('identifierref');$ndatt->nodeValue = $dependency;$nd->appendChild($ndatt);$dnode->appendChild($nd);}return $dnode;}/*** Create an Item Folder (How To)** @param cc_i_organization $org* @param DOMDocument $doc* @param DOMElement $xmlnode*/protected function create_item_folder(cc_i_organization &$org, DOMDocument &$doc, DOMElement &$xmlnode = null) {$itemfoldernode = $doc->createElementNS($this->ccnamespaces['imscc'], 'item');$this->update_attribute($doc, 'identifier', "root", $itemfoldernode);if ($org->has_items()) {$this->update_items($org->itemlist, $doc, $itemfoldernode);}if (is_null($this->organizations)) {$this->organizations = array();}$this->organizations[$org->identifier] = $org;$xmlnode->appendChild($itemfoldernode);}/*** Create an Organization (How To)** @param cc_i_organization $org* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_organization(cc_i_organization &$org, DOMDocument &$doc, $xmlnode = null) {$usenew = is_object($xmlnode);$dnode = $usenew ? $xmlnode : $doc->createElementNS($this->ccnamespaces['imscc'], "organization");$this->update_attribute($doc, 'identifier', $org->identifier, $dnode);$this->update_attribute($doc, 'structure', $org->structure, $dnode);$this->create_item_folder($org, $doc, $dnode);return $dnode;}/*** Create Metadata For Manifest (How To)** @param cc_i_metadata_manifest $met* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_metadata_manifest(cc_i_metadata_manifest $met, DOMDocument &$doc, $xmlnode = null) {$dnode = $doc->createElementNS($this->ccnamespaces['lomimscc'], "lom");if (!empty($xmlnode)) {$xmlnode->appendChild($dnode);}$dnodegeneral = empty($met->arraygeneral) ? null : $this->create_metadata_general($met, $doc, $xmlnode);$dnodetechnical = empty($met->arraytech) ? null : $this->create_metadata_technical($met, $doc, $xmlnode);$dnoderights = empty($met->arrayrights) ? null : $this->create_metadata_rights($met, $doc, $xmlnode);$dnodelifecycle = empty($met->arraylifecycle) ? null : $this->create_metadata_lifecycle($met, $doc, $xmlnode);!is_null($dnodegeneral) ? $dnode->appendChild($dnodegeneral) : null;!is_null($dnodetechnical) ? $dnode->appendChild($dnodetechnical) : null;!is_null($dnoderights) ? $dnode->appendChild($dnoderights) : null;!is_null($dnodelifecycle) ? $dnode->appendChild($dnodelifecycle) : null;return $dnode;}/*** Create Metadata For Resource (How To)** @param cc_i_metadata_resource $met* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_metadata_resource(cc_i_metadata_resource $met, DOMDocument &$doc, $xmlnode = null) {$dnode = $doc->createElementNS($this->ccnamespaces['lom'], "lom");!empty($xmlnode) ? $xmlnode->appendChild($dnode) : null;!empty($met->arrayeducational) ? $this->create_metadata_educational($met, $doc, $dnode) : null;return $dnode;}/*** Create Metadata For File (How To)** @param cc_i_metadata_file $met* @param DOMDocument $doc* @param Object $xmlnode* @return DOMNode*/protected function create_metadata_file(cc_i_metadata_file $met, DOMDocument &$doc, $xmlnode = null) {$dnode = $doc->createElementNS($this->ccnamespaces['lom'], "lom");!empty($xmlnode) ? $xmlnode->appendChild($dnode) : null;!empty($met->arrayeducational) ? $this->create_metadata_educational($met, $doc, $dnode) : null;return $dnode;}/*** Create General Metadata (How To)** @param object $met* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_metadata_general($met, DOMDocument &$doc, $xmlnode) {$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'general');foreach ($met->arraygeneral as $name => $value) {!is_array($value) ? $value = array($value) : null;foreach ($value as $v) {if ($name != 'language' && $name != 'catalog' && $name != 'entry') {$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'string', $v[1]);$ndatt = $doc->createAttribute('language');$ndatt->nodeValue = $v[0];$nd3->appendChild($ndatt);$nd2->appendChild($nd3);$nd->appendChild($nd2);} else {if ($name == 'language') {$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]);$nd->appendChild($nd2);}}}}if (!empty($met->arraygeneral['catalog']) || !empty($met->arraygeneral['entry'])) {$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'identifier');$nd->appendChild($nd2);if (!empty($met->arraygeneral['catalog'])) {$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'catalog', $met->arraygeneral['catalog'][0][0]);$nd2->appendChild($nd3);}if (!empty($met->arraygeneral['entry'])) {$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'entry', $met->arraygeneral['entry'][0][0]);$nd2->appendChild($nd4);}}return $nd;}/*** Create Technical Metadata (How To)** @param object $met* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_metadata_technical($met, DOMDocument &$doc, $xmlnode) {$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'technical');$xmlnode->appendChild($nd);foreach ($met->arraytech as $name => $value) {!is_array($value) ? $value = array($value) : null;foreach ($value as $v) {$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]);$nd->appendChild($nd2);}}return $nd;}/*** Create Rights Metadata (How To)** @param object $met* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_metadata_rights($met, DOMDocument &$doc, $xmlnode) {$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'rights');foreach ($met->arrayrights as $name => $value) {!is_array($value) ? $value = array($value) : null;foreach ($value as $v) {if ($name == 'description') {$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'string', $v[1]);$ndatt = $doc->createAttribute('language');$ndatt->nodeValue = $v[0];$nd3->appendChild($ndatt);$nd2->appendChild($nd3);$nd->appendChild($nd2);} else if ($name == 'copyrightAndOtherRestrictions' || $name == 'cost') {$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'value', $v[0]);$nd2->appendChild($nd3);$nd->appendChild($nd2);}}}return $nd;}/*** Create Lifecycle Metadata (How To)** @param object $met* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/protected function create_metadata_lifecycle($met, DOMDocument &$doc, $xmlnode) {$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'lifeCycle');$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'contribute');$nd->appendChild($nd2);$xmlnode->appendChild($nd);foreach ($met->arraylifecycle as $name => $value) {!is_array($value) ? $value = array($value) : null;foreach ($value as $v) {if ($name == 'role') {$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);$nd2->appendChild($nd3);$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'value', $v[0]);$nd3->appendChild($nd4);} else {if ($name == 'date') {$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);$nd2->appendChild($nd3);$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'dateTime', $v[0]);$nd3->appendChild($nd4);} else {$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]);$nd2->appendChild($nd3);}}}}return $nd;}/*** Create Education Metadata (How To)** @param object $met* @param DOMDocument $doc* @param object $xmlnode* @return DOMNode*/public function create_metadata_educational($met, DOMDocument &$doc, $xmlnode) {$nd = $doc->createElementNS($this->ccnamespaces['lom'], 'educational');$nd2 = $doc->createElementNS($this->ccnamespaces['lom'], 'intendedEndUserRole');$nd3 = $doc->createElementNS($this->ccnamespaces['voc'], 'vocabulary');$xmlnode->appendChild($nd);$nd->appendChild($nd2);$nd2->appendChild($nd3);foreach ($met->arrayeducational as $name => $value) {!is_array($value) ? $value = array($value) : null;foreach ($value as $v) {$nd4 = $doc->createElementNS($this->ccnamespaces['voc'], $name, $v[0]);$nd3->appendChild($nd4);}}return $nd;}}