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<?php
/**
* The set up for all MediaWiki web requests.
*
* It does:
* - web-related security checks,
* - decide how and from where to load site configuration (LocalSettings.php),
* - load Setup.php.
*
* 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
*/
/**
* @defgroup entrypoint Entry points
*
* These primary scripts live in the root directory. They are the ones used by
* web requests to interact with the wiki. Other PHP files in the repository
* do not need to be accessed directly by the web.
*/
# T17461: Make IE8 turn off content sniffing. Everybody else should ignore this
# We're adding it here so that it's *always* set, even for alternate entry
# points and when $wgOut gets disabled or overridden.
header( 'X-Content-Type-Options: nosniff' );
# Valid web server entry point, enable includes.
# Please don't move this line to includes/Defines.php. This line essentially
# defines a valid entry point. If you put it in includes/Defines.php, then
# any script that includes it becomes an entry point, thereby defeating
# its purpose.
define( 'MEDIAWIKI', true );
# Full path to the installation directory.
$IP = getenv( 'MW_INSTALL_PATH' );
if ( $IP === false ) {
$IP = dirname( __DIR__ );
}
// If no LocalSettings file exists, try to display an error page
// (use a callback because it depends on TemplateParser)
if ( !defined( 'MW_CONFIG_CALLBACK' ) ) {
if ( !defined( 'MW_CONFIG_FILE' ) ) {
define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
}
if ( !is_readable( MW_CONFIG_FILE ) ) {
function wfWebStartNoLocalSettings() {
# LocalSettings.php is the per-site customization file. If it does not exist
# the wiki installer needs to be launched or the generated file uploaded to
# the root wiki directory. Give a hint, if it is not readable by the server.
global $IP;
require_once "$IP/includes/NoLocalSettings.php";
die();
}
define( 'MW_CONFIG_CALLBACK', 'wfWebStartNoLocalSettings' );
}
}
// Custom setup for WebStart entry point
if ( !defined( 'MW_SETUP_CALLBACK' ) ) {
function wfWebStartSetup() {
// Initialise output buffering
// Check for previously set up buffers, to avoid a mix of gzip and non-gzip output.
if ( ob_get_level() == 0 ) {
ob_start( 'MediaWiki\\OutputHandler::handle' );
}
}
define( 'MW_SETUP_CALLBACK', 'wfWebStartSetup' );
}
require_once "$IP/includes/Setup.php";
# Multiple DBs or commits might be used; keep the request as transactional as possible
if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) {
ignore_user_abort( true );
}
if ( !defined( 'MW_API' ) &&
RequestContext::getMain()->getRequest()->getHeader( 'Promise-Non-Write-API-Action' )
) {
header( 'Cache-Control: no-cache' );
header( 'Content-Type: text/html; charset=utf-8' );
HttpStatus::header( 400 );
$errorHtml = wfMessage( 'nonwrite-api-promise-error' )
->useDatabase( false )
->inContentLanguage()
->escaped();
$content = <<<HTML
<!DOCTYPE html>
<html>
<head><meta charset="UTF-8" /></head>
<body>
$errorHtml
</body>
</html>
HTML;
header( 'Content-Length: ' . strlen( $content ) );
echo $content;
die();
}
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