gnu-social/lib/action/servererroraction.php

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* Server error action.
*
* @category Action
* @package GNUsocial
* @author Evan Prodromou <evan@status.net>
* @author Zach Copley <zach@status.net>
* @copyright 2008, 2009 StatusNet, Inc.
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
defined('GNUSOCIAL') || die();
/**
* Class for displaying HTTP server errors
*
* Note: The older util.php class simply printed a string, but the spec
* says that 500 errors should be treated similarly to 400 errors, and
* it's easier to give an HTML response. Maybe we can customize these
* to display some funny animal cartoons. If not, we can probably role
* these classes up into a single class.
*
* See: http://tools.ietf.org/html/rfc2616#section-10
*
* @category Action
* @package GNUsocial
* @author Zach Copley <zach@status.net>
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class ServerErrorAction extends ErrorAction
{
public static $status = [
500 => 'Internal Server Error',
501 => 'Not Implemented',
502 => 'Bad Gateway',
503 => 'Service Unavailable',
504 => 'Gateway Timeout',
505 => 'HTTP Version Not Supported'
];
public function __construct($message = 'Error', $code = 500, $ex = null)
{
parent::__construct($message, $code);
$this->default = 500;
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if (!$this->code || $this->code < 500 || $this->code > 599) {
$this->code = $this->default;
}
if (!$this->message) {
$this->message = "Server Error $this->code";
}
// Server errors must be logged.
$log = "ServerErrorAction: $code $message";
if ($ex) {
$log .= "\n" . $ex->getTraceAsString();
}
common_log(LOG_ERR, $log);
$this->showPage();
}
/**
* To specify additional HTTP headers for the action
*
* @return void
*/
public function extraHeaders()
{
http_response_code($this->code);
}
/**
* Page title.
*
* @return string page title
*/
public function title()
{
return self::$status[$this->code];
}
}