function cc_convert($dir)
{
global $OUTPUT;
$manifest_file = $dir . DIRECTORY_SEPARATOR . 'imsmanifest.xml';
$moodle_file = $dir . DIRECTORY_SEPARATOR . 'moodle.xml';
$schema_file = 'cc' . DIRECTORY_SEPARATOR . '' . DIRECTORY_SEPARATOR . 'schemas' . DIRECTORY_SEPARATOR . 'cclibxml2validator.xsd';
if (is_readable($manifest_file) && !is_readable($moodle_file)) {
$is_cc = detect_cc_format($manifest_file);
if ($is_cc) {
$detected_requirements = detect_requirements();
if (!$detected_requirements["php5"]) {
echo $OUTPUT->notification(get_string('cc_import_req_php5', 'imscc'));
return false;
}
if (!$detected_requirements["dom"]) {
echo $OUTPUT->notification(get_string('cc_import_req_dom', 'imscc'));
return false;
}
if (!$detected_requirements["libxml"]) {
echo $OUTPUT->notification(get_string('cc_import_req_libxml', 'imscc'));
return false;
}
if (!$detected_requirements["libxmlminversion"]) {
echo $OUTPUT->notification(get_string('cc_import_req_libxmlminversion', 'imscc'));
return false;
}
if (!$detected_requirements["xsl"]) {
echo $OUTPUT->notification(get_string('cc_import_req_xsl', 'imscc'));
return false;
}
echo get_string('cc2moodle_checking_schema', 'imscc') . '<br />';
$cc_manifest = new DOMDocument();
if ($cc_manifest->load($manifest_file)) {
if ($cc_manifest->schemaValidate($schema_file)) {
echo get_string('cc2moodle_valid_schema', 'imscc') . '<br />';
$cc2moodle = new cc2moodle($manifest_file);
if (!$cc2moodle->is_auth()) {
return $cc2moodle->generate_moodle_xml();
} else {
echo $OUTPUT->notification(get_string('cc2moodle_req_auth', 'imscc'));
return false;
}
} else {
echo $OUTPUT->notification(get_string('cc2moodle_invalid_schema', 'imscc'));
return false;
}
} else {
echo $OUTPUT->notification(get_string('cc2moodle_manifest_dont_load', 'imscc'));
return false;
}
}
}
return true;
}
private function create_node_course_modules_mod_resource($sheet_mod_resource, $instance)
{
$link = '';
$xpath = cc2moodle::newx_path(CC2Moodle::$manifest, CC2Moodle::$namespaces);
if ($instance['common_cartriedge_type'] == CC_TYPE_WEBCONTENT || $instance['common_cartriedge_type'] == 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'] == 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, $this->namespaces);
$resource = $xpath->query('/wl:webLink/url/@href');
$link = $resource->item(0)->nodeValue;
}
}
}
$find_tags = array('[#mod_instance#]', '[#mod_name#]', '[#mod_type#]', '[#mod_reference#]', '[#mod_summary#]', '[#mod_alltext#]', '[#date_now#]');
$replace_values = array($instance['instance'], $instance['title'], 'file', $link, '', '', time());
return str_replace($find_tags, $replace_values, $sheet_mod_resource);
}
public function get_topic_data($instance)
{
$topic_data = '';
$namespaces = array('dt' => 'http://www.imsglobal.org/xsd/imsdt_v1p0');
$topic_file = $this->get_external_xml($instance['resource_indentifier']);
if (!empty($topic_file)) {
$topic = $this->load_xml_resource(cc2moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $topic_file);
if (!empty($topic)) {
$xpath = cc2moodle::newx_path($topic, $namespaces);
$topic_title = $xpath->query('/dt:topic/title');
$topic_title = !empty($topic_title->item(0)->nodeValue) ? $topic_title->item(0)->nodeValue : '';
$topic_text = $xpath->query('/dt:topic/text');
$topic_text = !empty($topic_text->item(0)->nodeValue) ? $this->update_sources($topic_text->item(0)->nodeValue, dirname($topic_file)) : '';
$topic_text = !empty($topic_text) ? str_replace("%24", "\$", $this->include_titles($topic_text)) : '';
if (!empty($topic_title)) {
$topic_data['title'] = $topic_title;
$topic_data['description'] = $topic_text;
}
}
$topic_attachments = $xpath->query('/dt:topic/attachments/attachment/@href');
if ($topic_attachments->length > 0) {
$attachment_html = '';
foreach ($topic_attachments as $file) {
$attachment_html .= $this->generate_attachment_html($file->nodeValue);
}
$topic_data['description'] = !empty($attachment_html) ? $topic_text . '<p>Attachments:</p>' . $attachment_html : $topic_text;
}
}
return $topic_data;
}
public function get_basiclti_data($instance)
{
$topic_data = '';
$basiclti_file = $this->get_external_xml($instance['resource_indentifier']);
if (!empty($basiclti_file)) {
$basiclti_file_path = cc2moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $basiclti_file;
$basiclti_file_dir = dirname($basiclti_file_path);
$basiclti = $this->load_xml_resource($basiclti_file_path);
if (!empty($basiclti)) {
$xpath = cc2moodle::newx_path($basiclti, cc112moodle::$basicltins);
$topic_title = $this->getValue($xpath->query('/xmlns:cartridge_basiclti_link/blti:title'), 'Untitled');
$blti_description = $this->getValue($xpath->query('/xmlns:cartridge_basiclti_link/blti:description'));
$launch_url = $this->getValue($xpath->query('/xmlns:cartridge_basiclti_link/blti:launch_url'));
$tool_raw = $this->getValue($xpath->query('/xmlns:cartridge_basiclti_link/blti:vendor/lticp:code'), null);
$tool_url = $this->getValue($xpath->query('/xmlns:cartridge_basiclti_link/blti:vendor/lticp:url'), null);
$tool_desc = $this->getValue($xpath->query('/xmlns:cartridge_basiclti_link/blti:vendor/lticp:description'), null);
$topic_data['title'] = $topic_title;
$topic_data['description'] = $blti_description;
$topic_data['launchurl'] = $launch_url;
$topic_data['orgid'] = $tool_raw;
$topic_data['orgurl'] = $tool_url;
$topic_data['orgdesc'] = $tool_desc;
}
}
return $topic_data;
}
function __construct($path_to_manifest)
{
self::$manifest = new DOMDocument();
self::$path_to_manifest_folder = dirname($path_to_manifest);
self::log_action('Proccess start');
self::log_action('Load the manifest file: ' . $path_to_manifest);
if (!self::$manifest->load($path_to_manifest)) {
self::log_action('Cannot load the manifest file: ' . $path_to_manifest, true);
}
}
public function generate_node()
{
cc2moodle::log_action('Creating Labels mods');
$response = '';
$sheet_mod_label = cc2moodle::loadsheet(SHEET_COURSE_SECTIONS_SECTION_MODS_MOD_LABEL);
if (!empty(cc2moodle::$instances['instances'][MOODLE_TYPE_LABEL])) {
foreach (cc2moodle::$instances['instances'][MOODLE_TYPE_LABEL] as $instance) {
$response .= $this->create_node_course_modules_mod_label($sheet_mod_label, $instance);
}
}
return $response;
}
protected function execute()
{
global $CFG;
$manifest = cc2moodle::get_manifest($this->get_tempdir_path());
if (empty($manifest)) {
throw new imscc1_convert_exception('No Manifest detected!');
}
$this->log('validating manifest', backup::LOG_DEBUG, null, 1);
$validator = new manifest10_validator($CFG->dirroot . '/backup/cc/schemas');
if (!$validator->validate($manifest)) {
$this->log('validation error(s): ' . PHP_EOL . error_messages::instance(), backup::LOG_DEBUG, null, 2);
throw new imscc1_convert_exception(error_messages::instance()->to_string(true));
}
$manifestdir = dirname($manifest);
$cc2moodle = new cc2moodle($manifest);
if ($cc2moodle->is_auth()) {
throw new imscc1_convert_exception('Protected cartridge content - Skipping import!');
}
$status = $cc2moodle->generate_moodle_xml();
//Final cleanup
$xml_error = new libxml_errors_mgr(true);
$mdoc = new DOMDocument();
$mdoc->preserveWhiteSpace = false;
$mdoc->formatOutput = true;
$mdoc->validateOnParse = false;
$mdoc->strictErrorChecking = false;
if ($mdoc->load($manifestdir . '/moodle.xml', LIBXML_NONET)) {
$mdoc->save($this->get_workdir_path() . '/moodle.xml', LIBXML_NOEMPTYTAG);
} else {
$xml_error->collect();
$this->log('validation error(s): ' . PHP_EOL . error_messages::instance(), backup::LOG_DEBUG, null, 2);
throw new imscc1_convert_exception(error_messages::instance()->to_string(true));
}
//Move the files to the workdir
rename($manifestdir . '/course_files', $this->get_workdir_path() . '/course_files');
}
protected function get_all_files()
{
global $CFG;
$all_files = array();
$xpath = cc2moodle::newx_path(cc112moodle::$manifest, cc112moodle::$namespaces);
foreach (cc112moodle::$restypes as $type) {
$files = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@type="' . $type . '"]/imscc:file/@href');
if (empty($files) || $files->length == 0) {
continue;
}
foreach ($files as $file) {
//omit html files
//this is a bit too simplistic
$ext = strtolower(pathinfo($file->nodeValue, PATHINFO_EXTENSION));
if (in_array($ext, array('html', 'htm', 'xhtml'))) {
continue;
}
$all_files[] = $file;
}
unset($files);
}
//are there any labels?
$xquery = "//imscc:item/imscc:item/imscc:item[imscc:title][not(@identifierref)]";
$labels = $xpath->query($xquery);
if (!empty($labels) && $labels->length > 0) {
$tname = 'course_files';
$dpath = cc2moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $tname;
$fpath = $dpath . DIRECTORY_SEPARATOR . 'folder.gif';
$rfpath = $tname . '/folder.gif';
if (!file_exists($dpath)) {
mkdir($dpath);
}
//copy the folder.gif file
$folder_gif = "{$CFG->dirroot}/pix/f/folder.gif";
copy($folder_gif, $fpath);
$all_files[] = $rfpath;
}
$all_files = empty($all_files) ? '' : $all_files;
return $all_files;
}
public function get_topic_data($instance)
{
$topic_data = '';
$topic_file = $this->get_external_xml($instance['resource_indentifier']);
if (!empty($topic_file)) {
$topic_file_path = cc2moodle::$path_to_manifest_folder . DIRECTORY_SEPARATOR . $topic_file;
$topic_file_dir = dirname($topic_file_path);
$topic = $this->load_xml_resource($topic_file_path);
if (!empty($topic)) {
$xpath = cc2moodle::newx_path($topic, cc112moodle::$forumns);
$topic_title = $xpath->query('/dt:topic/dt:title');
if ($topic_title->length > 0 && !empty($topic_title->item(0)->nodeValue)) {
$topic_title = $topic_title->item(0)->nodeValue;
} else {
$topic_title = 'Untitled Topic';
}
$topic_text = $xpath->query('/dt:topic/dt:text');
$topic_text = !empty($topic_text->item(0)->nodeValue) ? $this->update_sources($topic_text->item(0)->nodeValue, dirname($topic_file)) : '';
$topic_text = !empty($topic_text) ? str_replace("%24", "\$", $this->include_titles($topic_text)) : '';
if (!empty($topic_title)) {
$topic_data['title'] = $topic_title;
$topic_data['description'] = $topic_text;
}
}
$topic_attachments = $xpath->query('/dt:topic/dt:attachments/dt:attachment/@href');
if ($topic_attachments->length > 0) {
$attachment_html = '';
foreach ($topic_attachments as $file) {
$attachment_html .= $this->generate_attachment_html($this->full_path($file->nodeValue, '/'));
}
$topic_data['description'] = !empty($attachment_html) ? $topic_text . '<p>Attachments:</p>' . $attachment_html : $topic_text;
}
}
return $topic_data;
}
private function get_all_files()
{
$all_files = array();
$xpath = cc2moodle::newx_path(cc2moodle::$manifest, cc2moodle::$namespaces);
$types = array('associatedcontent/imscc_xmlv1p0/learning-application-resource', 'webcontent');
foreach ($types as $type) {
$files = $xpath->query('/imscc:manifest/imscc:resources/imscc:resource[@type="' . $type . '"]/imscc:file/@href');
if (!empty($files)) {
foreach ($files as $file) {
$all_files[] = $file;
}
}
unset($files);
}
$all_files = empty($all_files) ? '' : $all_files;
return $all_files;
}
protected function create_code_info_details_mod()
{
$result = parent::create_code_info_details_mod();
$count_blti = $this->count_instances(MOODLE_TYPE_LTI);
$sheet_info_details_mod_instances_instance = static::loadsheet(SHEET_INFO_DETAILS_MOD_INSTANCE);
$blti_mod = '';
if ($count_blti > 0) {
$blti_instance = $this->create_mod_info_details_mod_instances_instance($sheet_info_details_mod_instances_instance, $count_blti, static::$instances['instances'][MOODLE_TYPE_LTI]);
$blti_mod = $blti_instance ? $this->create_mod_info_details_mod(MOODLE_TYPE_LTI, $blti_instance) : '';
}
return $result . $blti_mod;
}
private function get_question_type($identifier, $assessment)
{
$xpath = cc2moodle::newx_path($assessment, cc2moodle::getquizns());
$metadata = $xpath->query('//xmlns:item[@ident="' . $identifier . '"]/xmlns:itemmetadata/xmlns:qtimetadata/xmlns:qtimetadatafield');
foreach ($metadata as $field) {
$field_label = $xpath->query('xmlns:fieldlabel', $field);
$field_label = !empty($field_label->item(0)->nodeValue) ? $field_label->item(0)->nodeValue : '';
if ($field_label == 'cc_profile') {
$field_entry = $xpath->query('xmlns:fieldentry', $field);
$type = !empty($field_entry->item(0)->nodeValue) ? $field_entry->item(0)->nodeValue : '';
}
}
$return_type = array();
$return_type['moodle'] = '';
$return_type['cc'] = $type;
if ($type == CC_QUIZ_MULTIPLE_CHOICE) {
$return_type['moodle'] = MOODLE_QUIZ_MULTIPLE_CHOICE;
}
if ($type == CC_QUIZ_MULTIPLE_RESPONSE) {
$return_type['moodle'] = MOODLE_QUIZ_MULTIPLE_CHOICE;
}
if ($type == CC_QUIZ_TRUE_FALSE) {
$return_type['moodle'] = MOODLE_QUIZ_TRUE_FALSE;
}
if ($type == CC_QUIZ_ESSAY) {
$return_type['moodle'] = MOODLE_QUIZ_ESSAY;
}
if ($type == CC_QUIZ_FIB) {
$return_type['moodle'] = MOODLE_QUIZ_SHORTANSWER;
}
if ($type == CC_QUIZ_PATTERN_MACHT) {
$return_type['moodle'] = MOODLE_QUIZ_SHORTANSWER;
}
return $return_type;
}
private function create_node_course_modules_mod_resource($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, $sheet_mod_resource);
}
private function get_defaultgrade($assessment, $question_identifier)
{
$result = 1;
$xpath = cc2moodle::newx_path($assessment, cc2moodle::getquizns());
$query = '//xmlns:item[@ident="' . $question_identifier . '"]';
$query .= '//xmlns:qtimetadatafield[xmlns:fieldlabel="cc_weighting"]/xmlns:fieldentry';
$defgrade = $xpath->query($query);
if (!empty($defgrade) && $defgrade->length > 0) {
$resp = (int) $defgrade->item(0)->nodeValue;
if ($resp >= 0 && $resp <= 99) {
$result = $resp;
}
}
return $result;
}