function validation($data, $files)
{
global $CFG, $USER, $DB;
$errors = parent::validation($data, $files);
if (empty($data['id']) and empty($data['example'])) {
// make sure there is no submission saved meanwhile from another browser window
$sql = "SELECT COUNT(s.id)\n FROM {workshop_submissions} s\n JOIN {workshop} w ON (s.workshopid = w.id)\n JOIN {course_modules} cm ON (w.id = cm.instance)\n JOIN {modules} m ON (m.name = 'workshop' AND m.id = cm.module)\n WHERE cm.id = ? AND s.authorid = ? AND s.example = 0";
if ($DB->count_records_sql($sql, array($data['cmid'], $USER->id))) {
$errors['title'] = get_string('err_multiplesubmissions', 'mod_workshop');
}
}
if (isset($data['attachment_filemanager']) and isset($this->_customdata['workshop']->submissionfiletypes)) {
$whitelist = workshop::normalize_file_extensions($this->_customdata['workshop']->submissionfiletypes);
if ($whitelist) {
$draftfiles = file_get_drafarea_files($data['attachment_filemanager']);
if ($draftfiles) {
$wrongfiles = array();
foreach ($draftfiles->list as $file) {
if (!workshop::is_allowed_file_type($file->filename, $whitelist)) {
$wrongfiles[] = $file->filename;
}
}
if ($wrongfiles) {
$a = array('whitelist' => workshop::clean_file_extensions($whitelist), 'wrongfiles' => implode(', ', $wrongfiles));
$errors['attachment_filemanager'] = get_string('err_wrongfileextension', 'mod_workshop', $a);
}
}
}
}
return $errors;
}
/**
* Test checking file name against the list of allowed extensions.
*/
public function test_is_allowed_file_type()
{
$this->resetAfterTest(true);
$this->assertTrue(workshop::is_allowed_file_type('README.txt', ''));
$this->assertTrue(workshop::is_allowed_file_type('README.txt', ['']));
$this->assertFalse(workshop::is_allowed_file_type('README.txt', '0'));
$this->assertFalse(workshop::is_allowed_file_type('README.txt', 'xt'));
$this->assertFalse(workshop::is_allowed_file_type('README.txt', 'old.txt'));
$this->assertTrue(workshop::is_allowed_file_type('README.txt', 'txt'));
$this->assertTrue(workshop::is_allowed_file_type('README.txt', '.TXT'));
$this->assertTrue(workshop::is_allowed_file_type('README.TXT', 'txt'));
$this->assertTrue(workshop::is_allowed_file_type('README.txt', '.txt .md'));
$this->assertTrue(workshop::is_allowed_file_type('README.txt', 'HTML TXT DOC RTF'));
$this->assertTrue(workshop::is_allowed_file_type('README.txt', ['HTML', '...TXT', 'DOC', 'RTF']));
$this->assertTrue(workshop::is_allowed_file_type('C:\\Moodle\\course-data.tar.gz', 'gzip zip 7z tar.gz'));
$this->assertFalse(workshop::is_allowed_file_type('C:\\Moodle\\course-data.tar.gz', 'gzip zip 7z tar'));
$this->assertTrue(workshop::is_allowed_file_type('~/course-data.tar.gz', 'gzip zip 7z gz'));
$this->assertFalse(workshop::is_allowed_file_type('~/course-data.tar.gz', 'gzip zip 7z'));
$this->assertFalse(workshop::is_allowed_file_type('Alice on the beach.jpg.exe', 'png gif jpg bmp'));
$this->assertFalse(workshop::is_allowed_file_type('xfiles.exe.jpg', 'exe com bat sh'));
$this->assertFalse(workshop::is_allowed_file_type('solution.odt~', 'odt, xls'));
$this->assertTrue(workshop::is_allowed_file_type('solution.odt~', 'odt, odt~'));
}
/**
* Validate assessment form data.
*
* @param array $data
* @param array $files
* @return array
*/
public function validation($data, $files)
{
$errors = parent::validation($data, $files);
if (isset($data['feedbackauthorattachment_filemanager']) and isset($this->workshop->overallfeedbackfiletypes)) {
$whitelist = workshop::normalize_file_extensions($this->workshop->overallfeedbackfiletypes);
if ($whitelist) {
$draftfiles = file_get_drafarea_files($data['feedbackauthorattachment_filemanager']);
if ($draftfiles) {
$wrongfiles = array();
foreach ($draftfiles->list as $file) {
if (!workshop::is_allowed_file_type($file->filename, $whitelist)) {
$wrongfiles[] = $file->filename;
}
}
if ($wrongfiles) {
$a = array('whitelist' => workshop::clean_file_extensions($whitelist), 'wrongfiles' => implode(', ', $wrongfiles));
$errors['feedbackauthorattachment_filemanager'] = get_string('err_wrongfileextension', 'mod_workshop', $a);
}
}
}
}
return $errors;
}
