/**
* Gets information about a specific file, whether it was uploaded in the POST
* body of the current request or in the asynchronous upload session identified
* by the given ID.
*
* If no such file was received, if an empty file was received, or if there was
* an error in receiving or storing the file or if it was rejected by PHP,
* <code>null</code> will be returned.
*
* If an asynchronous upload session ID is given, but no session with that ID
* actually exists, a notice is triggered.
*
* @param string $name the form field name under which the file was submitted
* @param string $async_session_id the ID for the asynchronous upload session
* @param boolean $clear if true, and the uploaded file is found in the
* asynchronous session, the file's record will be removed from the
* session
* @return UploadedFile information about the uploaded file, or
* <code>null</code> if no such file was uploaded or if there was an
* error in uploading it
*/
function reason_get_uploaded_file($name, $async_session_id = null, $clear = false)
{
if ($async_session_id) {
$async_session = _get_async_upload_session($async_session_id);
if ($async_session) {
if (isset($async_session['files'][$name])) {
$records = $async_session['files'][$name];
if (is_array($records) && count($records) > 0) {
$keys = array_keys($records);
$key = $keys[count($keys) - 1];
$async_file = $records[$key];
$file = _uploaded_file_from_async($async_file);
if (!$file || $clear) {
unset($async_session['files'][$name][$key]);
$session =& get_reason_session();
$id = $async_session_id;
$session->set(_async_upload_session_key($id), $async_session);
}
if ($file) {
return $file;
}
}
}
} else {
trigger_warning("tried to get the file {$name} from asynchronous " . 'upload session ' . var_export($async_session_id, true) . ', but ' . 'no such session exists');
}
}
return isset($_FILES[$name]) ? _uploaded_file_from_php($_FILES[$name]) : null;
}
'size' => $filesize
);
if ($img_info) {
$response[$name]['dimensions'] = array(
'width' => $width,
'height' => $height
);
$response[$name]['orig_dimensions'] = array(
'width' => $orig_width,
'height' => $orig_height
);
}
}
$reason_session->set(_async_upload_session_key($upload_sid), $session);
final_response(200, $response);
function check_constraints($constraints, $file) {
$path = $file->get_temporary_path();
if (!empty($constraints['mime_types'])) {
if (!$file->mime_type_matches($constraints['mime_types'])) {
final_response(415, "File is not of an allowed type.");
}
}
if (!empty($constraints['extensions'])) {
$filename_parts = explode('.', $file->get_filename());
$extension = strtolower(end($filename_parts));
if (!in_array($extension, $constraints['extensions'])) {
