<?php
/**
* Kunena Component
* @package Kunena.Framework
*
* @copyright (C) 2008 - 2014 Kunena Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* @link http://www.kunena.org
**/
defined ( '_JEXEC' ) or die ();
/**
* Class KunenaError
*/
abstract class KunenaError {
static $enabled = 0;
static $handler = false;
static $debug = false;
static $admin = false;
public static function initialize() {
if (!self::$enabled) {
self::$debug = JDEBUG || KunenaFactory::getConfig ()->debug;
self::$admin = JFactory::getApplication()->isAdmin() || KunenaUserHelper::getMyself()->isAdmin();
register_shutdown_function(array('KunenaError', 'shutdownHandler'), self::$debug || self::$admin || KUNENA_PROFILER);
if (!self::$debug) return;
@ini_set('display_errors', 1);
self::$handler = true;
@error_reporting(E_ALL | E_STRICT);
JFactory::getDbo()->setDebug(true);
set_error_handler(array('KunenaError', 'errorHandler'));
self::$enabled++;
}
}
public static function cleanup() {
if (self::$enabled && (--self::$enabled) == 0) {
if (self::$handler) {
restore_error_handler ();
self::$handler = false;
}
}
}
public static function error($msg, $where='default') {
if (self::$debug) {
$app = JFactory::getApplication();
$app->enqueueMessage(JText::sprintf('COM_KUNENA_ERROR_'.strtoupper($where), $msg), 'error');
}
}
public static function warning($msg, $where='default') {
if (self::$debug) {
$app = JFactory::getApplication();
$app->enqueueMessage(JText::sprintf('COM_KUNENA_WARNING_'.strtoupper($where), $msg), 'notice');
}
}
public static function checkDatabaseError() {
$db = JFactory::getDBO();
if ($db->getErrorNum ()) {
$app = JFactory::getApplication();
if (JFactory::getApplication()->isAdmin()) {
$app->enqueueMessage ($db->getErrorMsg(), 'error' );
} elseif (self::$debug || self::$admin) {
$app->enqueueMessage ( 'Kunena '.JText::sprintf ( 'COM_KUNENA_INTERNAL_ERROR_ADMIN', '<a href="http:://www.kunena.org/">www.kunena.org</a>' ), 'error' );
} else {
$app->enqueueMessage ( 'Kunena '.JText::_ ( 'COM_KUNENA_INTERNAL_ERROR' ), 'error' );
}
return true;
}
return false;
}
public static function getDatabaseError() {
$db = JFactory::getDBO();
if ($db->getErrorNum ()) {
if (self::$debug || self::$admin) {
return $db->getErrorMsg();
} else {
return 'Kunena '.JText::_ ( 'COM_KUNENA_INTERNAL_ERROR' );
}
}
}
public static function errorHandler($errno, $errstr, $errfile, $errline) {
if (error_reporting () == 0 || !strstr($errfile, 'kunena')) {
return false;
}
switch ($errno) {
case E_NOTICE :
case E_USER_NOTICE :
$error = "Notice";
break;
case E_WARNING :
case E_USER_WARNING :
case E_CORE_WARNING :
case E_COMPILE_WARNING :
$error = "Warning";
break;
case E_ERROR :
case E_USER_ERROR :
case E_PARSE :
case E_CORE_ERROR :
case E_COMPILE_ERROR :
case E_RECOVERABLE_ERROR :
$error = "Fatal Error";
break;
case E_STRICT :
return false;
default :
$error = "Unknown Error $errno";
break;
}
// Clean up file path (take also care of some symbolic links)
$errfile_short = strtr($errfile, '\\', '/');
$errfile_short = preg_replace('%'.strtr(JPATH_ROOT, '\\', '/').'/%', '\\1', $errfile_short);
$errfile_short = preg_replace('%^.*?/((administrator/)?(components|modules|plugins|templates)/)%', '\\1', $errfile_short);
if (self::$debug || self::$admin) {
printf ( "<br />\n<b>%s</b>: %s in <b>%s</b> on line <b>%d</b><br /><br />\n", $error, $errstr, $errfile_short, $errline );
}
if (ini_get ( 'log_errors' )) {
error_log ( sprintf ( "PHP %s: %s in %s on line %d", $error, $errstr, $errfile, $errline ) );
}
return true;
}
public static function shutdownHandler($debug) {
static $types = array (E_ERROR, E_USER_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR, E_RECOVERABLE_ERROR);
$error = error_get_last ();
if ($error && in_array ( $error ['type'], $types )) {
header('HTTP/1.1 500 Internal Server Error');
while(@ob_end_clean());
ob_start();
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-gb" lang="en-gb">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>500 Internal Server Error</title>
</head>
<body>
';
echo '<div style="width:760px;margin:0 auto;text-align:center;background:#d9e2ea top left repeat-x;-webkit-box-shadow: 3px 3px 5px #777;-moz-box-shadow: 3px 3px 5px #777;box-shadow: 3px 3px 5px #777;-webkit-border-radius:20px; -moz-border-radius:20px;border-radius:20px;">';
echo '<h1 style="background-color:#5388b4;color:white;text-shadow: 1px 1px 1px #000000;filter: dropshadow(color=#000000, offx=1, offy=1);padding-left:20px;-webkit-box-shadow: 1px 1px 2px #444;-moz-box-shadow: 1px 1px 2px #444;box-shadow: 1px 1px 2px #444;-webkit-border-radius: 20px; -moz-border-radius:20px;border-radius:20px;">500 Internal Server Error</h1>';
echo '<h2>Fatal Error was detected!</h2>';
if ($debug) {
// Clean up file path (take also care of some symbolic links)
$errfile_short = strtr($error ['file'], '\\', '/');
$errfile_short = preg_replace('%'.strtr(JPATH_ROOT, '\\', '/').'/%', '\\1', $errfile_short);
$errfile_short = preg_replace('%^.*?/((administrator/)?(components|modules|plugins|templates)/)%', '\\1', $errfile_short);
printf ("<p><b>Fatal Error</b>: %s in <b>%s</b> on line <b>%d</b></p>", $error ['message'], $errfile_short, $error ['line'] );
$parts = explode('/', $errfile_short);
$dir = (string) array_shift($parts);
if ($dir == 'administrator') $dir = (string) array_shift($parts);
$extension = strtr((string) array_shift($parts), '_', ' ');
switch ($dir) {
case 'components';
$extension = ucwords(substr($extension,4)).' Component';
break;
case 'modules';
$extension = ucwords(substr($extension,4)).' Module';
break;
case 'plugins';
$plugin = preg_replace('/\.php/', '', strtr((string) array_shift($parts), '_', ' '));
$extension = ucwords($extension).' - '.ucwords($plugin).' Plugin';
break;
case 'templates';
$extension = ucwords($extension).' Template';
break;
default:
$extension = ucwords($dir);
}
echo "<p>The error was detected in the <b>{$extension}</b>.</p>";
if (strpos($errfile_short, 'kunena') !== false) {
echo '<p>For support click here: <a href="http://www.kunena.org/forum">Kunena Support</a></p>';
}
} else {
echo '<p>Please contact the site owner.</p>';
}
echo '<hr /><p><a href="javascript:history.go(-1)">Go back</a></p><br />';
echo '</div>';
echo '
</body>
</html>';
}
}
}