protected function _getGroupMimeTypes($group)
{
$mime_types = new YArray(YFile::getMimeMapping());
$mime_types = $mime_types->flattenRecursive();
$mime_types = array_filter($mime_types, create_function('$a', 'return preg_match("/^' . $group . '\\//i", $a);'));
return array_map('strtolower', $mime_types);
}
public function validateSubmission($value, $params)
{
// init vars
$trusted_mode = $params->get('trusted_mode');
// get old file value
$element = new ElementDownload();
$element->identifier = $this->identifier;
$old_file = $element->setData($this->_item->elements)->getElementData()->get('file');
$file = '';
// get file from select list
if ($trusted_mode && ($file = $value->get('upload'))) {
if (!$this->_inUploadPath($file) && $file != $old_file) {
throw new YValidatorException(sprintf('This file is not located in the upload directory.'));
}
if (!JFile::exists($file)) {
throw new YValidatorException(sprintf('This file does not exist.'));
}
// get file from upload
} else {
try {
// get the uploaded file information
$userfile = JRequest::getVar('elements_' . $this->identifier, array(), 'files', 'array');
// get legal extensions
$extensions = explode(',', $this->_config->get('upload_extensions', 'png,jpg,doc,mp3,mov,avi,mpg,zip,rar,gz'));
$extensions = array_map(create_function('$ext', 'return strtolower(trim($ext));'), $extensions);
//get legal mime types
$legal_mime_types = new YArray(array_intersect_key(YFile::getMimeMapping(), array_flip($extensions)));
$legal_mime_types = $legal_mime_types->flattenRecursive();
// get max upload size
$max_upload_size = $this->_config->get('max_upload_size', '512') * 1024;
$max_upload_size = empty($max_upload_size) ? null : $max_upload_size;
// validate
$validator = new YValidatorFile(array('mime_types' => $legal_mime_types, 'max_size' => $max_upload_size));
$file = $validator->addMessage('mime_types', 'Uploaded file is not of a permitted type.')->clean($userfile);
} catch (YValidatorException $e) {
if ($e->getCode() != UPLOAD_ERR_NO_FILE) {
throw $e;
}
if (!$trusted_mode && $old_file && $value->get('upload')) {
$file = $old_file;
}
}
}
if ($params->get('required') && empty($file)) {
throw new YValidatorException('Please select a file to upload.');
}
$validator = new YValidatorInteger(array('required' => false), array('number' => 'The Download Limit needs to be a number.'));
$download_limit = $validator->clean($value->get('download_limit'));
$download_limit = empty($download_limit) ? '' : $download_limit;
return array('file' => $file, 'download_limit' => $download_limit);
}