include_once 'classes.php';
/*
* Proceeding request data
*/
if (isset($_POST['data'])) {
// Clearing string to avoid javascript from external requests
$json = trim(strip_tags($_POST['data']));
$request = json_decode($json);
// Preparing response array
$response = array();
if (isset($request->action) && isset($request->data) && isset($request->rot)) {
if ($request->action === 'encode') {
// Receiving encoded text
$response['data'] = Encoder::encode($request->data, (int) $request->rot);
// Receiving input frequency
$response['frequency'] = Encoder::getFrequency($request->data);
// Setting success status
$response['status'] = 'success';
// Setting solution attempt
$response['solution'] = Solver::tryGuess($request->data);
} else {
if ($request->action === 'decode') {
// Receiving decoded text
$response['data'] = Decoder::decode($request->data, (int) $request->rot);
// Setting success status
$response['frequency'] = Decoder::getFrequency($request->data);
// Setting success status
$response['status'] = 'success';
// Setting solution attempt
$response['solution'] = Solver::tryGuess($request->data);
} else {
