public function delete_hidden_file($task_id, $file)
{
$filename = decode_from_url($file);
$filepath = 'private/uploads/task_files/task_' . intval($task_id) . '/hidden/' . $filename;
$this->output->set_content_type('application/json');
if (file_exists($filepath)) {
@unlink($filepath);
$this->output->set_output(json_encode(TRUE));
} else {
$this->output->set_output(json_encode(FALSE));
}
}
public function do_change_password($token, $encoded_email)
{
if ($this->usermanager->is_student_session_valid()) {
$this->messages->add_message('lang:students_change_password_student_loged_in', Messages::MESSAGE_TYPE_ERROR);
redirect('/');
}
$this->load->library('form_validation');
$email = decode_from_url($encoded_email);
if ($this->form_validation->valid_email($email) && preg_match('/^[0-9a-f]{40}$/', $token)) {
$this->_transaction_isolation();
$this->db->trans_begin();
$student = new Student();
$student->where('password_token', $token);
$student->where('email', $email);
$student->get();
if ($student->exists()) {
$this->_init_language_for_student($student);
} else {
$this->db->trans_rollback();
$this->messages->add_message('lang:students_change_password_invalid_token_email', Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('students/login'));
}
$this->form_validation->set_rules('student[password]', 'lang:students_change_password_form_field_password', 'required|min_length[6]|max_length[20]');
$this->form_validation->set_rules('student[verify]', 'lang:students_change_password_form_field_verify', 'required|matches[student[password]]');
if ($this->form_validation->run()) {
$student_post = $this->input->post('student');
$student->password = sha1($student_post['password']);
$student->password_token = NULL;
if ($student->save()) {
$this->db->trans_commit();
$this->messages->add_message('lang:students_change_password_success', Messages::MESSAGE_TYPE_SUCCESS);
redirect(create_internal_url('students/login'));
} else {
$this->db->trans_rollback();
$this->messages->add_message('lang:students_change_password_failed', Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('students/login'));
}
} else {
$this->db->trans_rollback();
$this->change_password($token, $encoded_email);
}
} else {
$this->messages->add_message('lang:students_change_password_invalid_token_email', Messages::MESSAGE_TYPE_ERROR);
redirect(create_internal_url('students/login'));
}
}
public function quick_course_change($course_id, $current_url)
{
$this->activate_course($course_id);
$output = $this->output->get_output();
$output_object = json_decode($output);
$this->messages->add_message($output_object->message, $output_object->status ? Messages::MESSAGE_TYPE_SUCCESS : Messages::MESSAGE_TYPE_ERROR);
$decoded_current_url = decode_from_url($current_url);
redirect($decoded_current_url);
}
public function show_file_content($task_set_id, $solution_id, $solution_file, $zip_index)
{
$this->output->set_content_type('text/plain');
$task_set = new Task_set();
$task_set->where_related('solution', 'id', $solution_id);
$task_set->include_related('solution/student', 'id');
$task_set->get_by_id($task_set_id);
if ($task_set->exists()) {
$file_name = decode_from_url($solution_file);
$output = $task_set->extract_student_file_by_index($file_name, $zip_index);
if ($output !== FALSE) {
$this->output->set_output('<div class="codepreview_container"><pre class="codepreview prettyprint linenums lang-' . strtolower($output['extension']) . '">' . htmlspecialchars($output['content']) . '</pre></div>');
} else {
$this->output->set_output($this->lang->line('admin_solutions_valuation_file_content_error_cant_read_file'));
}
} else {
$this->output->set_output($this->lang->line('admin_solutions_valuation_file_content_error_task_set_not_found'));
}
}
public function delete_csv_file($config)
{
$csv_data = unserialize(decode_from_url($config));
$file_path = './private/uploads/csv_imports/' . $csv_data['f'];
@unlink($file_path);
}
public function switch_prefered_course($course_id, $current_url)
{
$this->usermanager->teacher_login_protected_redirect();
$this->_transaction_isolation();
$this->db->trans_begin();
$teacher = new Teacher();
$teacher->get_by_id($this->usermanager->get_teacher_id());
if ($teacher->exists()) {
$course = new Course();
$course->get_by_id($course_id);
if ($teacher->save(array('prefered_course' => $course))) {
$this->db->trans_commit();
$this->usermanager->refresh_teacher_userdata();
$this->messages->add_message('lang:admin_teachers_prefered_course_quickchange_success', Messages::MESSAGE_TYPE_DEFAULT);
$this->load->library('filter');
$this->filter->set_all_filters_course($teacher->prefered_course_id);
} else {
$this->db->trans_rollback();
$this->messages->add_message('lang:admin_teachers_prefered_course_quickchange_failed', Messages::MESSAGE_TYPE_ERROR);
}
} else {
$this->db->trans_rollback();
$this->messages->add_message('lang:admin_teachers_prefered_course_quickchange_failed', Messages::MESSAGE_TYPE_ERROR);
}
redirect(decode_from_url($current_url));
}
public function download_hidden_file($task_id, $file)
{
$filename = decode_from_url($file);
$filepath = 'private/uploads/task_files/task_' . intval($task_id) . '/hidden/' . $filename;
if (file_exists($filepath)) {
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mime_type = finfo_file($finfo, $filepath);
finfo_close($finfo);
header('Content-Description: File Transfer');
header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; filename=' . basename($filepath));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize($filepath));
ob_clean();
flush();
$f = fopen($filepath, 'r');
while (!feof($f)) {
echo fread($f, 1024);
}
fclose($f);
exit;
} else {
$this->output->set_status_header(404, 'Not found');
}
}
