<?php
/**
* Display something vaguely comprehensible in the event of a totally unrecoverable error.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Display something vaguely comprehensible in the event of a totally unrecoverable error.
* Does not assume access to *anything*; no globals, no autoloader, no database, no localisation.
* Safe for PHP4 (and putting this here means that WebStart.php and GlobalSettings.php
* no longer need to be).
*
* Calling this function kills execution immediately.
*
* @param string $type Which entry point we are protecting. One of:
* - index.php
* - load.php
* - api.php
* - cli
*
* @note Since we can't rely on anything, the minimum PHP versions and MW current
* version are hardcoded here
*/
function wfPHPVersionError( $type ) {
$mwVersion = '1.21';
$minimumVersionPHP = '5.3.2';
$phpVersion = phpversion();
$protocol = isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0';
$message = "MediaWiki $mwVersion requires at least PHP version $minimumVersionPHP, you are using PHP $phpVersion.";
if ( $type == 'cli' ) {
$finalOutput = "You are using PHP version $phpVersion but MediaWiki $mwVersion needs PHP $minimumVersionPHP or higher. ABORTING.\n" .
"Check if you have a newer php executable with a different name, such as php5.\n";
} elseif ( $type == 'index.php' ) {
$pathinfo = pathinfo( $_SERVER['SCRIPT_NAME'] );
$encLogo = htmlspecialchars(
str_replace( '//', '/', $pathinfo['dirname'] . '/' ) .
'skins/common/images/mediawiki.png'
);
header( "$protocol 500 MediaWiki configuration Error" );
header( 'Content-type: text/html; charset=UTF-8' );
// Don't cache error pages! They cause no end of trouble...
header( 'Cache-control: none' );
header( 'Pragma: no-cache' );
$finalOutput = <<<HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns='http://www.w3.org/1999/xhtml' lang='en'>
<head>
<title>MediaWiki {$mwVersion}</title>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
<style type='text/css' media='screen'>
body {
color: #000;
background-color: #fff;
font-family: sans-serif;
padding: 2em;
text-align: center;
}
p, img, h1 {
text-align: left;
margin: 0.5em 0;
}
h1 {
font-size: 120%;
}
</style>
</head>
<body>
<img src="{$encLogo}" alt='The MediaWiki logo' />
<h1>MediaWiki {$mwVersion} internal error</h1>
<div class='error'>
<p>
{$message}
</p>
<p>
Please consider <a href="http://www.php.net/downloads.php">upgrading your copy of PHP</a>.
PHP versions less than 5.3.0 are no longer supported by the PHP Group and will not receive
security or bugfix updates.
</p>
<p>
If for some reason you are unable to upgrade your PHP version, you will need to
<a href="http://www.mediawiki.org/wiki/Download">download</a> an older version
of MediaWiki from our website. See our
<a href="http://www.mediawiki.org/wiki/Compatibility#PHP">compatibility page</a>
for details of which versions are compatible with prior versions of PHP.
</p>
</div>
</body>
</html>
HTML;
// Handle everything that's not index.php
} else {
// So nothing thinks this is JS or CSS
$finalOutput = ( $type == 'load.php' ) ? "/* $message */" : $message;
header( "$protocol 500 MediaWiki configuration Error" );
}
echo( "$finalOutput\n" );
die( 1 );
}