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;
}
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');
}
