/**
* Delete this test or related object.
* If no parameters are set, this method deletes current test and all files associated with this test.
* @param DataMapper|string $object related object to delete from relation.
* @param string $related_field relation internal name.
*/
public function delete($object = '', $related_field = '')
{
if (empty($object) && !is_array($object) && !empty($this->id)) {
$path_to_test_files = 'private/uploads/unit_tests/test_' . $this->id;
if (file_exists($path_to_test_files)) {
unlink_recursive($path_to_test_files, TRUE);
}
}
parent::delete($object, $related_field);
}
function list_import_prepare()
{
$CI =& get_instance();
$periods = new Period();
$periods->truncate();
echo 'LIST periods table truncated ...' . "\n";
$courses = new Course();
$courses->truncate();
echo 'LIST courses table truncated ...' . "\n";
$groups = new Group();
$groups->truncate();
echo 'LIST groups table truncated ...' . "\n";
$rooms = new Room();
$rooms->truncate();
echo 'LIST rooms table truncated ...' . "\n";
$participants = new Participant();
$participants->truncate();
echo 'LIST participants table truncated ...' . "\n";
$CI->db->simple_query('TRUNCATE TABLE `course_task_set_type_rel`');
echo 'LIST course_task_set_type_rel table truncated ...' . "\n";
$categories = new Category();
$categories->truncate();
echo 'LIST categories table truncated ...' . "\n";
$tasks = new Task();
$tasks->truncate();
$CI->lang->delete_overlays('tasks');
unlink_recursive('private/uploads/task_files/', FALSE);
unlink_recursive('private/uploads/unit_tests/', FALSE);
echo 'LIST tasks table truncated ...' . "\n";
$CI->db->simple_query('TRUNCATE TABLE `task_category_rel`');
echo 'LIST task_category_rel table truncated ...' . "\n";
$task_set_types = new Task_set_type();
$task_set_types->truncate();
echo 'LIST task_set_types table truncated ...' . "\n";
$task_sets = new Task_set();
$task_sets->truncate();
$CI->lang->delete_overlays('task_sets');
echo 'LIST task_sets table truncated ...' . "\n";
$comments = new Comment();
$comments->truncate();
echo 'LIST comments table truncated ...' . "\n";
$solutions = new Solution();
$solutions->truncate();
unlink_recursive('private/uploads/solutions/', FALSE);
echo 'LIST solutions table truncated ...' . "\n";
$CI->db->simple_query('TRUNCATE TABLE `task_task_set_rel`');
echo 'LIST task_task_set_rel table truncated ...' . "\n";
}
/**
* Recursively delete a directory.
*
* @param string $dir directory name.
* @param boolean $delete_root_too delete specified top-level directory as well.
*/
function unlink_recursive($dir, $delete_root_too)
{
if (!($dh = @opendir($dir))) {
return;
}
while (FALSE !== ($obj = readdir($dh))) {
if ($obj == '.' || $obj == '..') {
continue;
}
if (!@unlink($dir . '/' . $obj)) {
unlink_recursive($dir . '/' . $obj, TRUE);
}
}
closedir($dh);
if ($delete_root_too) {
@rmdir($dir);
}
return;
}
function unlink_recursive($dir, $deleteRootToo = true)
{
if (!file_exists($dir) || !($dh = @opendir($dir))) {
return;
}
while (false !== ($obj = readdir($dh))) {
if ($obj == '.' || $obj == '..') {
continue;
}
if (!@unlink($dir . DIRECTORY_SEPARATOR . $obj)) {
unlink_recursive($dir . DIRECTORY_SEPARATOR . $obj, true);
}
}
closedir($dh);
if ($deleteRootToo) {
@rmdir($dir);
}
return;
}
/**
* Extracts one file from given student ZIP file and index and returns its content.
* @param string $real_filename solution file name.
* @param integer $index index in ZIP file.
* @return boolean|array returns array with file content, name and extension or FALSE on error.
*/
public function extract_student_file_by_index($real_filename, $index)
{
$file_info = $this->get_specific_file_info($real_filename);
if ($file_info !== FALSE) {
$path = 'private/uploads/solutions/task_set_' . intval($this->id) . '/';
$CI =& get_instance();
$CI->load->library('session');
$supported_extensions = $this->trim_explode(',', $CI->config->item('readable_file_extensions'));
$all_userdata = $CI->session->all_userdata();
$extract_path = 'private/extracted_solutions/task_set_' . intval($this->id) . '/' . $all_userdata['session_id'] . '/';
@mkdir('private/extracted_solutions/task_set_' . intval($this->id) . '/', DIR_READ_MODE);
@mkdir($extract_path, DIR_READ_MODE);
$zip_file = new ZipArchive();
$open = $zip_file->open($path . $real_filename);
$content = '';
$filename = '';
$extension = '';
$file_read = TRUE;
if ($open === TRUE && intval($index) >= 0 && intval($index) < $zip_file->numFiles) {
$extracted_file = $zip_file->getNameIndex(intval($index));
$extension = '';
$ext_pos = strrpos($extracted_file, '.');
if ($ext_pos !== FALSE) {
$extension = substr($extracted_file, $ext_pos + 1);
}
if (in_array(strtolower($extension), $supported_extensions)) {
$zip_file->extractTo($extract_path, $extracted_file);
$content = @file_get_contents($extract_path . $extracted_file);
$filename = basename($extract_path . $extracted_file);
} else {
$file_read = FALSE;
}
$zip_file->close();
} else {
$file_read = FALSE;
}
@unlink_recursive(rtrim($extract_path, '/'), TRUE);
return $file_read ? array('content' => $content, 'filename' => $filename, 'extension' => $extension) : FALSE;
}
return FALSE;
}
protected function delete_upload_folder($id)
{
$path = Questionnaire::PATH_TO_UPLOAD_FOLDER . $id;
@unlink_recursive($path, true);
}
public function delete_person($person_id = NULL)
{
if (is_null($person_id)) {
add_error_flash_message('Osoba sa nenašla.');
redirect(site_url('persons'));
}
$person = new Person();
$person->get_by_id((int) $person_id);
if (!$person->exists()) {
add_error_flash_message('Osoba sa nenašla.');
redirect(site_url('persons'));
}
if ($person->id == auth_get_id()) {
add_error_flash_message('Nemôžete vymazať vlastný účet.');
redirect(site_url('persons'));
}
$success_message = 'Osoba <strong>' . $person->name . ' ' . $person->surname . '</strong> s loginom <strong>' . $person->login . '</strong>, a s ID <strong>' . $person->id . '</strong> bola úspešne vymazaná.';
$error_message = 'Osobu <strong>' . $person->name . ' ' . $person->surname . '</strong> s loginom <strong>' . $person->login . '</strong>, a s ID <strong>' . $person->id . '</strong> sa nepodarilo vymazať.';
if ($person->delete()) {
unlink_recursive('user/photos/data/' . (int) $person_id . '/', TRUE);
add_success_flash_message($success_message);
} else {
add_error_flash_message($error_message);
}
redirect(site_url('persons'));
}
function delete_directory($dir)
{
unlink_recursive($dir);
}
public function clone_task($task_id)
{
$result = new stdClass();
$result->result = FALSE;
$this->_transaction_isolation();
$this->db->trans_begin();
$old_task = new Task();
$old_task->get_by_id((int) $task_id);
if ($old_task->exists()) {
$new_task = $old_task->get_copy();
if ($new_task->save()) {
$this->lang->clone_overlays('tasks', $old_task->id, $new_task->id);
$from = 'private/uploads/task_files/task_' . $old_task->id;
$continue = TRUE;
if (file_exists($from)) {
$to = 'private/uploads/task_files/task_' . $new_task->id;
if (!clone_directory($from, $to)) {
unlink_recursive($to, TRUE);
$this->db->trans_rollback();
$result->message = $this->lang->line('admin_tasks_error_message_files_not_cloned');
$continue = FALSE;
}
}
if ($continue) {
$old_categories = new Category();
$old_categories->where_related($old_task);
$old_categories->get();
if ($old_categories->result_count()) {
foreach ($old_categories->all as $old_category) {
$old_category->save($new_task);
}
}
$old_tests = new Test();
$old_tests->where_related($old_task);
$old_tests->get();
if ($old_tests->result_count()) {
foreach ($old_tests->all as $old_test) {
$new_test = $old_test->get_copy();
if ($new_test->save($new_task)) {
$this->lang->clone_overlays('tests', $old_test->id, $new_test->id);
$from = 'private/uploads/unit_tests/test_' . $old_test->id;
$to = 'private/uploads/unit_tests/test_' . $new_test->id;
clone_directory($from, $to);
}
}
}
$this->db->trans_commit();
$result->result = TRUE;
$result->message = $this->lang->line('admin_tasks_success_message_task_cloned');
}
} else {
$this->db->trans_rollback();
$result->message = $this->lang->line('admin_tasks_error_message_clone_dont_saved');
}
} else {
$this->db->trans_rollback();
$result->message = $this->lang->line('admin_tasks_error_message_task_not_found');
}
$this->output->set_content_type('application/json');
$this->output->set_output(json_encode($result));
}
/**
* Recursive delete current test work directory with everything inside.
*/
protected function delete_test_directory()
{
if (file_exists($this->current_test_directory)) {
unlink_recursive($this->current_test_directory, TRUE);
}
}
/**
* Deletes relations (if parameters are set) or this object from database.
* @param DataMapper|string $object related object to delete from relation.
* @param string $related_field relation internal name.
*/
public function delete($object = '', $related_field = '')
{
$this_id = $this->id;
parent::delete($object, $related_field);
if (empty($object) && !is_array($object) && !empty($this_id)) {
$tests = new Test();
$tests->where_related($this);
$tests->get();
if ($tests->result_count()) {
foreach ($tests->all as $test) {
$test->delete();
}
}
$path = 'private/uploads/task_files/task_' . intval($this_id) . '/';
if (file_exists($path)) {
unlink_recursive($path, TRUE);
}
}
}
public function garbage_collector()
{
echo 'Running garbage collector script ...' . "\n";
$this->load->helper('application');
$current_time = time();
$this->load->library('cli_progress_bar');
$this->cli_progress_bar->init(5);
// ----------- COMPARATOR WORKING DIRECTORIES --------------------------
$path_to_comparator_files = 'public/comparator/';
$time_for_comparator_folders_to_remain_untouched = 21600;
//echo ' Clearing old Java comparator working directories:' . "\n";
$this->cli_progress_bar->print_text(' Clearing old Java comparator working directories:');
$dirs = scandir($path_to_comparator_files);
$deleted = 0;
$total_dirs = 0;
if (is_array($dirs) && count($dirs) > 0) {
foreach ($dirs as $dir) {
if (is_dir($path_to_comparator_files . $dir) && $dir != '.' && $dir != '..') {
$total_dirs++;
$to_print = ' ' . $dir;
$dir_mod_time = filemtime($path_to_comparator_files . $dir);
if ($current_time - $dir_mod_time >= $time_for_comparator_folders_to_remain_untouched) {
$deleted++;
unlink_recursive($path_to_comparator_files . $dir, TRUE);
$to_print .= ': OLD - deleting' . "\n";
} else {
$to_print .= ': SAFE' . "\n";
}
$this->cli_progress_bar->print_text($to_print, TRUE);
} else {
$this->cli_progress_bar->tick();
}
}
}
if ($total_dirs == 0) {
//echo ' No directories ...' . "\n";
$this->cli_progress_bar->print_text(' No directories ...');
}
//echo ' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.' . "\n";
$this->cli_progress_bar->print_text(' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.');
$this->cli_progress_bar->increment();
// ----------- MOSS WORKING DIRECTORIES --------------------------------
$path_to_moss_files = 'private/moss/';
$time_for_moss_folders_to_remain_untouched = 21600;
//echo ' Clearing old MOSS comparator working directories:' . "\n";
$this->cli_progress_bar->print_text(' Clearing old MOSS comparator working directories:');
$dirs = scandir($path_to_moss_files);
$deleted = 0;
$total_dirs = 0;
if (is_array($dirs) && count($dirs) > 0) {
foreach ($dirs as $dir) {
if (is_dir($path_to_moss_files . $dir) && $dir != '.' && $dir != '..') {
$total_dirs++;
$to_print = ' ' . $dir;
$dir_mod_time = filemtime($path_to_moss_files . $dir);
if ($current_time - $dir_mod_time >= $time_for_moss_folders_to_remain_untouched) {
$deleted++;
unlink_recursive($path_to_moss_files . $dir, TRUE);
$to_print .= ': OLD - deleting' . "\n";
} else {
$to_print .= ': SAFE' . "\n";
}
$this->cli_progress_bar->print_text($to_print, TRUE);
} else {
$this->cli_progress_bar->tick();
}
}
}
if ($total_dirs == 0) {
//echo ' No directories ...' . "\n";
$this->cli_progress_bar->print_text(' No directories ...');
}
//echo ' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.' . "\n";
$this->cli_progress_bar->print_text(' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.');
$this->cli_progress_bar->increment();
// ----------- EXTRACTED SOLUTIONS DIRECTORIES -------------------------
$path_to_extracted_solutions = 'private/extracted_solutions/';
$time_for_extracted_solutions_to_remain_untouched = 1800;
//echo ' Clearing old extracted solutions working directories:' . "\n";
$this->cli_progress_bar->print_text(' Clearing old extracted solutions working directories:');
$dirs = scandir($path_to_extracted_solutions);
$deleted = 0;
$total_dirs = 0;
if (is_array($dirs) && count($dirs) > 0) {
foreach ($dirs as $dir) {
if (is_dir($path_to_extracted_solutions . $dir) && $dir != '.' && $dir != '..') {
$total_dirs++;
$to_print = ' ' . $dir;
$dir_mod_time = filemtime($path_to_extracted_solutions . $dir);
if ($current_time - $dir_mod_time >= $time_for_extracted_solutions_to_remain_untouched) {
$deleted++;
unlink_recursive($path_to_extracted_solutions . $dir, TRUE);
$to_print .= ': OLD - deleting' . "\n";
} else {
$to_print .= ': SAFE' . "\n";
}
$this->cli_progress_bar->print_text($to_print, TRUE);
} else {
$this->cli_progress_bar->tick();
}
}
}
if ($total_dirs == 0) {
//echo ' No directories ...' . "\n";
$this->cli_progress_bar->print_text(' No directories ...');
}
//echo ' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.' . "\n";
$this->cli_progress_bar->print_text(' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.');
$this->cli_progress_bar->increment();
// ----------- TEST TO EXECUTE DIRECTORIES -----------------------------
$path_to_test_to_execute = 'private/test_to_execute/';
$time_for_test_to_execute_to_remain_untouched = 3600;
//echo ' Clearing old test to execute working directories:' . "\n";
$this->cli_progress_bar->print_text(' Clearing old test to execute working directories:');
$dirs = scandir($path_to_test_to_execute);
$deleted = 0;
$total_dirs = 0;
if (is_array($dirs) && count($dirs) > 0) {
foreach ($dirs as $dir) {
if (is_dir($path_to_test_to_execute . $dir) && $dir != '.' && $dir != '..') {
$total_dirs++;
$to_print = ' ' . $dir;
$dir_mod_time = filemtime($path_to_test_to_execute . $dir);
if ($current_time - $dir_mod_time >= $time_for_test_to_execute_to_remain_untouched) {
$deleted++;
unlink_recursive($path_to_test_to_execute . $dir, TRUE);
$to_print .= ': OLD - deleting' . "\n";
} else {
$to_print .= ': SAFE' . "\n";
}
$this->cli_progress_bar->print_text($to_print, TRUE);
} else {
$this->cli_progress_bar->tick();
}
}
}
if ($total_dirs == 0) {
//echo ' No directories ...' . "\n";
$this->cli_progress_bar->print_text(' No directories ...');
}
//echo ' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.' . "\n";
$this->cli_progress_bar->print_text(' Done, ' . $deleted . ' from ' . $total_dirs . ' directories deleted.');
$this->cli_progress_bar->increment();
// ----------- TEST TO EXECUTE DIRECTORIES -----------------------------
$total_number = 0;
//echo ' Clearing unfinished uploads of task files:' . "\n";
$this->cli_progress_bar->print_text(' Clearing unfinished uploads of task files:');
$deleted = $this->find_and_delete_old_upload_part('private/uploads/task_files/', '', 172800, $current_time, $total_number);
if ($total_number == 0) {
//echo ' No files ...' . "\n";
$this->cli_progress_bar->print_text(' No files ...');
}
//echo ' Done, ' . $deleted . ' from ' . $total_number . ' files deleted.' . "\n";
$this->cli_progress_bar->print_text(' Done, ' . $deleted . ' from ' . $total_number . ' files deleted.');
$this->cli_progress_bar->increment();
$this->cli_progress_bar->finish();
echo 'Done ...' . "\n";
}
private function clear_old_directories()
{
$path = self::MOSS_WORKING_DIRECTORY;
$path = ltrim($path, '\\/') . '/';
$directories = scandir($path);
$current_time = time();
if (is_array($directories) && count($directories) > 0) {
foreach ($directories as $directory) {
if (is_dir($path . $directory) && $directory != '.' && $directory != '..') {
$last_mod_time = filemtime($path . $directory);
if ($current_time - $last_mod_time >= self::SECONDS_TO_BE_CONSIDERED_OLD) {
unlink_recursive($path . $directory, TRUE);
}
}
}
}
}