/**
* Read a course-object from a zip-file
* @return course The course
* @param boolean $delete Delete the file after reading the course?
* @todo Check if the archive is a correct Chamilo-export
*/
static function read_course($filename, $delete = false)
{
CourseArchiver::clean_backup_dir();
// Create a temp directory
$tmp_dir_name = 'CourseArchiver_' . uniqid('');
$unzip_dir = api_get_path(SYS_ARCHIVE_PATH) . $tmp_dir_name;
mkdir($unzip_dir, api_get_permissions_for_new_directories(), true);
copy(api_get_path(SYS_ARCHIVE_PATH) . $filename, $unzip_dir . '/backup.zip');
// unzip the archive
$zip = new PclZip($unzip_dir . '/backup.zip');
chdir($unzip_dir);
$list = $zip->extract(PCLZIP_OPT_TEMP_FILE_ON);
if ($list == 0) {
/*global $app;
$errorMessage = $zip->errorInfo(true);
$app['session']->getFlashBag()->add('warning', $errorMessage);*/
}
// remove the archive-file
if ($delete) {
if (file_exists(api_get_path(SYS_ARCHIVE_PATH) . $filename)) {
unlink(api_get_path(SYS_ARCHIVE_PATH) . $filename);
}
}
// Read the course
if (!is_file('course_info.dat')) {
return new Course();
}
$contents = file_get_contents('course_info.dat');
// CourseCopyLearnpath class appeared in Chamilo 1.8.7, it is the former Learnpath class in the "Copy course" tool.
// For backward comaptibility with archives created on Chamilo 1.8.6.2 or older systems, we have to do the following:
// Before unserialization, if class name "Learnpath" was found, it should be renamed as "CourseCopyLearnpath".
$course = unserialize(str_replace('O:9:"Learnpath":', 'O:19:"CourseCopyLearnpath":', base64_decode($contents)));
if (get_class($course) != 'Course') {
return new Course();
}
$course->backup_path = $unzip_dir;
return $course;
}
$course = CourseArchiver::read_course($filename, $delete_file);
if ($course->has_resources() && $filename !== false) {
$hiddenFields['same_file_name_option'] = $_POST['same_file_name_option'];
// Add token to Course select form
$hiddenFields['sec_token'] = Security::get_token();
CourseSelectForm::display_form($course, $hiddenFields);
} elseif ($filename === false) {
Display::display_error_message(get_lang('ArchivesDirectoryNotWriteableContactAdmin'));
echo '<a class="btn" href="import_backup.php?' . api_get_cidreq() . '">' . get_lang('TryAgain') . '</a>';
} else {
Display::display_warning_message(get_lang('NoResourcesInBackupFile'));
echo '<a class="btn" href="import_backup.php?' . api_get_cidreq() . '">' . get_lang('TryAgain') . '</a>';
}
} else {
$user = api_get_user_info();
$backups = CourseArchiver::get_available_backups($is_platformAdmin ? null : $user['user_id']);
$backups_available = count($backups) > 0;
$form = new FormValidator('import_backup_form', 'post', api_get_path(WEB_CODE_PATH) . 'coursecopy/import_backup.php?' . api_get_cidreq(), '', 'multipart/form-data');
$form->addElement('header', get_lang('SelectBackupFile'));
$renderer = $form->defaultRenderer();
$renderer->setElementTemplate('<div>{element}</div> ');
$form->addElement('hidden', 'action', 'restore_backup');
$form->addElement('radio', 'backup_type', '', get_lang('LocalFile'), 'local', 'id="bt_local" class="checkbox" onclick="javascript: document.import_backup_form.backup_server.disabled=true;document.import_backup_form.backup.disabled=false;"');
$form->addElement('file', 'backup', '', 'style="margin-left: 50px;"');
$form->addElement('html', '<br />');
if ($backups_available) {
$form->addElement('radio', 'backup_type', '', get_lang('ServerFile'), 'server', 'id="bt_server" class="checkbox" onclick="javascript: document.import_backup_form.backup_server.disabled=false;document.import_backup_form.backup.disabled=true;"');
$options['null'] = '-';
foreach ($backups as $index => $backup) {
$options[$backup['file']] = $backup['course_code'] . ' (' . $backup['date'] . ')';
}
require_once 'classes/CourseArchiver.class.php';
require_once 'classes/CourseRestorer.class.php';
require_once 'classes/CourseSelectForm.class.php';
// Display the tool title
echo Display::page_header($nameTools);
/* MAIN CODE */
if (Security::check_token('post') && (isset($_POST['action']) && $_POST['action'] == 'course_select_form' || isset($_POST['backup_option']) && $_POST['backup_option'] == 'full_backup')) {
// Clear token
Security::clear_token();
if (isset($_POST['action']) && $_POST['action'] == 'course_select_form') {
$course = CourseSelectForm::get_posted_course();
} else {
$cb = new CourseBuilder();
$course = $cb->build();
}
$zip_file = CourseArchiver::write_course($course);
Display::display_confirmation_message(get_lang('BackupCreated'));
echo '<br /><a class="btn btn-primary btn-large" href="' . api_get_path(WEB_CODE_PATH) . 'course_info/download.php?archive=' . $zip_file . '&' . api_get_cidreq() . '">
' . get_lang('Download') . '</a>';
} elseif (Security::check_token('post') && (isset($_POST['backup_option']) && $_POST['backup_option'] == 'select_items')) {
// Clear token
Security::clear_token();
$cb = new CourseBuilder('partial');
$course = $cb->build();
// Add token to Course select form
$hiddenFields['sec_token'] = Security::get_token();
CourseSelectForm::display_form($course, $hiddenFields);
} else {
$cb = new CourseBuilder();
$course = $cb->build();
if (!$course->has_resources()) {
$delete_file = true;
}
$course = CourseArchiver::read_course($filename, $delete_file);
if ($course->has_resources() && $filename !== false) {
CourseSelectForm::display_form($course, array('same_file_name_option' => $_POST['same_file_name_option']));
} elseif ($filename === false) {
Display::display_error_message(get_lang('ArchivesDirectoryNotWriteableContactAdmin'));
echo '<a class="btn" href="import_backup.php?' . api_get_cidreq() . '">' . get_lang('TryAgain') . '</a>';
} else {
Display::display_warning_message(get_lang('NoResourcesInBackupFile'));
echo '<a class="btn" href="import_backup.php?' . api_get_cidreq() . '">' . get_lang('TryAgain') . '</a>';
}
} else {
$user = api_get_user_info();
$user = $is_platformAdmin ? null : $user['user_id'];
$backups = CourseArchiver::get_available_backups($user);
$backups_available = count($backups) > 0;
$form = new FormValidator('import_backup_form', 'post', api_get_path(WEB_PUBLIC_PATH) . 'main/coursecopy/import_backup.php', '', 'multipart/form-data');
$form->addElement('header', get_lang('SelectBackupFile'));
$renderer = $form->defaultRenderer();
$renderer->setElementTemplate('<div>{element}</div> ');
$form->addElement('hidden', 'action', 'restore_backup');
$form->addElement('radio', 'backup_type', '', get_lang('LocalFile'), 'local', 'id="bt_local" class="checkbox" onclick="javascript: document.import_backup_form.backup_server.disabled=true;document.import_backup_form.backup.disabled=false;"');
$form->addElement('file', 'backup', '', 'style="margin-left: 50px;"');
$form->addElement('html', '<br />');
if ($backups_available) {
$form->addElement('radio', 'backup_type', '', get_lang('ServerFile'), 'server', 'id="bt_server" class="checkbox" onclick="javascript: document.import_backup_form.backup_server.disabled=false;document.import_backup_form.backup.disabled=true;"');
$options['null'] = '-';
foreach ($backups as $index => $backup) {
$options[$backup['file']] = $backup['course_code'] . ' (' . $backup['date'] . ')';
}
/**
* Read a course-object from a zip-file
* @param string $filename
* @param boolean $delete Delete the file after reading the course?
*
* @return course The course
* @todo Check if the archive is a correct Chamilo-export
*/
public static function read_course($filename, $delete = false)
{
CourseArchiver::clean_backup_dir();
// Create a temp directory
$tmp_dir_name = 'CourseArchiver_' . uniqid('');
$unzip_dir = api_get_path(SYS_ARCHIVE_PATH) . '' . $tmp_dir_name;
@mkdir($unzip_dir, api_get_permissions_for_new_directories(), true);
@copy(api_get_path(SYS_ARCHIVE_PATH) . '' . $filename, $unzip_dir . '/backup.zip');
// unzip the archive
$zip = new PclZip($unzip_dir . '/backup.zip');
@chdir($unzip_dir);
$zip->extract(PCLZIP_OPT_TEMP_FILE_ON);
// remove the archive-file
if ($delete) {
@unlink(api_get_path(SYS_ARCHIVE_PATH) . '' . $filename);
}
// read the course
if (!is_file('course_info.dat')) {
return new Course();
}
$fp = @fopen('course_info.dat', "r");
$contents = @fread($fp, filesize('course_info.dat'));
@fclose($fp);
// CourseCopyLearnpath class appeared in Chamilo 1.8.7, it is the former Learnpath class in the "Copy course" tool.
// For backward comaptibility with archives created on Chamilo 1.8.6.2 or older systems, we have to do the following:
// Before unserialization, if class name "Learnpath" was found, it should be renamed as "CourseCopyLearnpath".
$course = unserialize(str_replace('O:9:"Learnpath":', 'O:19:"CourseCopyLearnpath":', base64_decode($contents)));
if (get_class($course) != 'Course') {
return new Course();
}
$course->backup_path = $unzip_dir;
return $course;
}
