Exemplo n.º 1
0
 private function create_node_course_modules_mod_resource($sheet_mod_resource, $instance)
 {
     global $CFG;
     require_once $CFG->libdir . '/validateurlsyntax.php';
     $link = '';
     $mod_alltext = '';
     $mod_summary = '';
     $xpath = cc2moodle::newx_path(cc2moodle::$manifest, cc2moodle::$namespaces);
     if ($instance['common_cartriedge_type'] == cc2moodle::CC_TYPE_WEBCONTENT || $instance['common_cartriedge_type'] == cc2moodle::CC_TYPE_ASSOCIATED_CONTENT) {
         $resource = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $instance['resource_indentifier'] . '"]/@href');
         $resource = !empty($resource->item(0)->nodeValue) ? $resource->item(0)->nodeValue : '';
         if (empty($resource)) {
             unset($resource);
             $resource = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $instance['resource_indentifier'] . '"]/imscc:file/@href');
             $resource = !empty($resource->item(0)->nodeValue) ? $resource->item(0)->nodeValue : '';
         }
         if (!empty($resource)) {
             $link = $resource;
         }
     }
     if ($instance['common_cartriedge_type'] == cc2moodle::CC_TYPE_WEBLINK) {
         $external_resource = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@identifier="' . $instance['resource_indentifier'] . '"]/imscc:file/@href')->item(0)->nodeValue;
         if ($external_resource) {
             $resource = $this->load_xml_resource(cc2moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $external_resource);
             if (!empty($resource)) {
                 $xpath = cc2moodle::newx_path($resource, cc2moodle::getresourcens());
                 $resource = $xpath->query('//url/@href');
                 if ($resource->length > 0) {
                     $rawlink = $resource->item(0)->nodeValue;
                     if (!validateUrlSyntax($rawlink, 's+')) {
                         $changed = rawurldecode($rawlink);
                         if (validateUrlSyntax($changed, 's+')) {
                             $link = $changed;
                         } else {
                             $link = 'http://invalidurldetected/';
                         }
                     } else {
                         $link = $rawlink;
                     }
                 }
             }
         }
     }
     $find_tags = array('[#mod_instance#]', '[#mod_name#]', '[#mod_type#]', '[#mod_reference#]', '[#mod_summary#]', '[#mod_alltext#]', '[#mod_options#]', '[#date_now#]');
     $mod_type = 'file';
     $mod_options = 'objectframe';
     $mod_reference = $link;
     //detected if we are dealing with html file
     if (!empty($link) && $instance['common_cartriedge_type'] == cc2moodle::CC_TYPE_WEBCONTENT) {
         $ext = strtolower(pathinfo($link, PATHINFO_EXTENSION));
         if (in_array($ext, array('html', 'htm', 'xhtml'))) {
             $mod_type = 'html';
             //extract the content of the file
             $rootpath = realpath(cc112moodle::$path_to_manifest_folder);
             $htmlpath = realpath($rootpath . DIRECTORY_SEPARATOR . $link);
             $dirpath = dirname($htmlpath);
             if (file_exists($htmlpath)) {
                 $fcontent = file_get_contents($htmlpath);
                 $mod_alltext = clean_param($this->prepare_content($fcontent), PARAM_CLEANHTML);
                 $mod_reference = '';
                 $mod_options = '';
                 //TODO: try to handle embedded resources
                 /**
                  * images, linked static resources, applets, videos
                  */
                 $doc = new DOMDocument();
                 $cdir = getcwd();
                 chdir($dirpath);
                 try {
                     if (!empty($mod_alltext) && $doc->loadHTML($mod_alltext)) {
                         $xpath = new DOMXPath($doc);
                         $attributes = array('href', 'src', 'background', 'archive', 'code');
                         $qtemplate = "//*[@##][not(contains(@##,'://'))]/@##";
                         $query = '';
                         foreach ($attributes as $attrname) {
                             if (!empty($query)) {
                                 $query .= " | ";
                             }
                             $query .= str_replace('##', $attrname, $qtemplate);
                         }
                         $list = $xpath->query($query);
                         $searches = array();
                         $replaces = array();
                         foreach ($list as $resrc) {
                             $rpath = $resrc->nodeValue;
                             $rtp = realpath($rpath);
                             if ($rtp !== false && is_file($rtp)) {
                                 //file is there - we are in business
                                 $strip = str_replace("\\", "/", str_ireplace($rootpath, '', $rtp));
                                 $encoded_file = '$@FILEPHP@$' . str_replace('/', '$@SLASH@$', $strip);
                                 $searches[] = $resrc->nodeValue;
                                 $replaces[] = $encoded_file;
                             }
                         }
                         $mod_alltext = str_replace($searches, $replaces, $mod_alltext);
                     }
                 } catch (Exception $e) {
                     //silence the complaints
                 }
                 chdir($cdir);
                 $mod_alltext = self::safexml($mod_alltext);
             }
         }
     }
     $replace_values = array($instance['instance'], self::safexml($instance['title']), $mod_type, $mod_reference, '', $mod_alltext, $mod_options, time());
     return str_replace($find_tags, $replace_values, $sheet_mod_resource);
 }