+require_once('init.php');
+require_once('ParameterParser.php');
+require_once(CONST_Debug ? 'DebugHtml.php' : 'DebugNone.php');
+
+/***************************************************************************
+ *
+ * Error handling functions
+ *
+ */
+
+function userError($sMsg)
+{
+ throw new Exception($sMsg, 400);
+}
+
+
+function exception_handler_html($exception)
+{
+ http_response_code($exception->getCode());
+ header('Content-type: text/html; charset=UTF-8');
+ include(CONST_BasePath.'/lib/template/error-html.php');
+ exit();
+}
+
+function exception_handler_json($exception)
+{
+ http_response_code($exception->getCode());
+ header('Content-type: application/json; charset=utf-8');
+ include(CONST_BasePath.'/lib/template/error-json.php');
+ exit();
+}
+
+function exception_handler_xml($exception)
+{
+ http_response_code($exception->getCode());
+ header('Content-type: text/xml; charset=utf-8');
+ echo '<?xml version="1.0" encoding="UTF-8" ?>'."\n";
+ include(CONST_BasePath.'/lib/template/error-xml.php');
+ exit();
+}
+
+function shutdown_exception_handler_html()
+{
+ $error = error_get_last();
+ if ($error !== null && $error['type'] === E_ERROR) {
+ exception_handler_html(new Exception($error['message'], 500));
+ }
+}
+
+function shutdown_exception_handler_xml()
+{
+ $error = error_get_last();
+ if ($error !== null && $error['type'] === E_ERROR) {
+ exception_handler_xml(new Exception($error['message'], 500));
+ }
+}
+
+function shutdown_exception_handler_json()
+{
+ $error = error_get_last();
+ if ($error !== null && $error['type'] === E_ERROR) {
+ exception_handler_json(new Exception($error['message'], 500));
+ }
+}
+
+
+function set_exception_handler_by_format($sFormat = null)
+{
+ // Multiple calls to register_shutdown_function will cause multiple callbacks
+ // to be executed, we only want the last executed. Thus we don't want to register
+ // one by default without an explicit $sFormat set.
+
+ if (!isset($sFormat)) {
+ set_exception_handler('exception_handler_html');
+ } elseif ($sFormat == 'html') {
+ set_exception_handler('exception_handler_html');
+ register_shutdown_function('shutdown_exception_handler_html');
+ } elseif ($sFormat == 'xml') {
+ set_exception_handler('exception_handler_xml');
+ register_shutdown_function('shutdown_exception_handler_xml');
+ } else {
+ set_exception_handler('exception_handler_json');
+ register_shutdown_function('shutdown_exception_handler_json');
+ }
+}
+// set a default
+set_exception_handler_by_format();
+
+
+/***************************************************************************
+ * HTTP Reply header setup
+ */
+
+if (CONST_NoAccessControl) {
+ header('Access-Control-Allow-Origin: *');
+ header('Access-Control-Allow-Methods: OPTIONS,GET');
+ if (!empty($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS'])) {
+ header('Access-Control-Allow-Headers: '.$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']);
+ }
+}
+if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == 'OPTIONS') exit;
+
+if (CONST_Debug) header('Content-type: text/html; charset=utf-8');