MDL-29956: Implement common cartridge export (r16882)
This commit is contained in:
Mark Nielsen
committed by
Eloy Lafuente (stronk7)
Eloy Lafuente (stronk7)
parent
3319af85a9
commit
42dffc6feb
@@ -0,0 +1,253 @@
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<?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 validation classes used by the imscc converters
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*
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* @package backup-convert
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* @copyright 2011 Darko Miletic <[email protected]>
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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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final class error_messages {
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/**
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*
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* @static error_messages
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*/
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private static $instance = null;
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private function __construct(){}
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private function __clone(){}
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/**
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* @return error_messages
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*/
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public static function instance() {
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if (empty(self::$instance)) {
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$c = __CLASS__;
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self::$instance = new $c();
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}
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return self::$instance;
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}
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/**
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* @var array
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*/
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private $items = array();
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/**
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* @param string $msg
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*/
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public function add($msg) {
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if (!empty($msg)) {
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$this->items[] = $msg;
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}
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}
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/**
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* @return array
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*/
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public function errors() {
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$this->items;
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}
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/**
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* Empties the error content
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*/
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public function reset() {
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$this->items = array();
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}
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/**
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* @param boolean $web
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* @return string
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*/
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public function to_string($web = false) {
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$result = '';
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if ($web) {
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$result .= '<ol>'.PHP_EOL;
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}
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foreach ($this->items as $error) {
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if ($web) {
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$result .= '<li>';
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}
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$result .= $error.PHP_EOL;
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if ($web) {
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$result .= '</li>'.PHP_EOL;
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}
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}
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if ($web) {
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$result .= '</ol>'.PHP_EOL;
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}
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return $result;
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}
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/**
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* Casting to string method
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* @return string
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*/
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public function __toString() {
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return $this->to_string(false);
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}
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}
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final class libxml_errors_mgr {
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/**
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* @var boolean
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*/
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private $previous = false;
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public function __construct(){
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$this->previous = libxml_use_internal_errors(true);
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libxml_clear_errors();
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}
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private function collect_errors ($filename=''){
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$errors = libxml_get_errors();
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static $error_types = array(
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LIBXML_ERR_ERROR => 'Error'
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,LIBXML_ERR_FATAL => 'Fatal Error'
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,LIBXML_ERR_WARNING => 'Warning'
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);
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$result = array();
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foreach($errors as $error){
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$add = '';
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if (!empty($filename)) {
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$add = " in {$filename}";
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} elseif (!empty($error->file)) {
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$add = " in {$error->file}";
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}
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$line = '';
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if (!empty($error->line)) {
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$line = " at line {$error->line}";
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}
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$err = "{$error_types[$error->level]}{$add}: {$error->message}{$line}";
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error_messages::instance()->add($err);
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}
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libxml_clear_errors();
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return $result;
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}
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public function __destruct(){
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$this->collect_errors();
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if (!$this->previous) {
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libxml_use_internal_errors($this->previous);
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}
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}
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}
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function validate_xml($xml, $schema){
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$result = false;
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$manifest_file = realpath($xml);
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$schema_file = realpath($schema);
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if (empty($manifest_file) || empty($schema_file)) {
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return false;
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}
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$xml_error = new libxml_errors_mgr();
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$manifest = new DOMDocument();
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$doc->validateOnParse = false;
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$result = $manifest->load($manifest_file, LIBXML_NONET) &&
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$manifest->schemaValidate($schema_file);
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return $result;
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}
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class cc_validate_type {
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const manifest_validator1 = 'cclibxml2validator.xsd' ;
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const assesment_validator1 = '/domainProfile_4/ims_qtiasiv1p2_localised.xsd';
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const discussion_validator1 = '/domainProfile_6/imsdt_v1p0_localised.xsd' ;
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const weblink_validator1 = '/domainProfile_5/imswl_v1p0_localised.xsd' ;
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const manifest_validator11 = 'cc11libxml2validator.xsd' ;
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const blti_validator11 = 'imslticc_v1p0p1.xsd' ;
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const assesment_validator11 = 'ccv1p1_qtiasiv1p2p1_v1p0.xsd';
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const discussion_validator11 = 'ccv1p1_imsdt_v1p1.xsd' ;
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const weblink_validator11 = 'ccv1p1_imswl_v1p1.xsd' ;
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/**
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* @var string
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*/
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protected $type = null;
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/**
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* @var string
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*/
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protected $location = null;
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public function __construct($type, $location){
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$this->type = $type;
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$this->location = $location;
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}
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/**
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* Validates the item
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* @param string $element - File path for the xml
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* @return boolean
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*/
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public function validate($element) {
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$this->last_error = null;
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$celement = realpath($element);
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$cvalidator = realpath($this->location.DIRECTORY_SEPARATOR.$this->type);
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$result = (empty($celement) || empty($cvalidator));
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if (!$result) {
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$xml_error = new libxml_errors_mgr();
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$doc = new DOMDocument();
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$doc->validateOnParse = false;
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$result = $doc->load($celement, LIBXML_NONET) &&
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$doc->schemaValidate($cvalidator);
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}
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return $result;
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}
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}
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class manifest_validator extends cc_validate_type {
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public function __construct($location){
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parent::__construct(self::manifest_validator11, $location);
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}
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}
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class manifest10_validator extends cc_validate_type {
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public function __construct($location){
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parent::__construct(self::manifest_validator1, $location);
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}
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}
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class blti_validator extends cc_validate_type {
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public function __construct($location){
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parent::__construct(self::blti_validator11, $location);
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}
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}
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class assesment_validator extends cc_validate_type {
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public function __construct($location){
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parent::__construct(self::assesment_validator11, $location);
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}
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}
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class discussion_validator extends cc_validate_type {
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public function __construct($location){
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parent::__construct(self::discussion_validator11, $location);
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}
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}
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class weblink_validator extends cc_validate_type {
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public function __construct($location){
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parent::__construct(self::weblink_validator11, $location);
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}
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}
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