wiki.techinc.nl/includes/WebStart.php
Timo Tijhof bc1f601382 docs: Improve "Entry points" documentation page
Turn this into a doc group, and let the descriptions come
directly from the files in question. This makes the list easier
to maintain, and alsom means that the overview page becomes
discoverable whenever one is looking at the entry point file
as well. Previously the doc page pointed to the entry points,
but not the other way around. This is also fixed.

Bug: T244294
Change-Id: I891c5a37e17592edc1136d7367949927121c8bc8
2020-02-04 21:44:38 +00:00

119 lines
3.9 KiB
PHP

<?php
/**
* This does the initial set up for a web request.
*
* It does some security checks, loads autoloaders, constants, and
* global functions, starts the profiler, loads the configuration,
* and loads Setup.php, which loads extensions using the extension
* registration system and initializes the application's global state.
*
* 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();
}