3 * This does the initial set up for a web request.
5 * It does some security checks, loads autoloaders, constants, and
6 * global functions, starts the profiler, loads the configuration,
7 * and loads Setup.php, which loads extensions using the extension
8 * registration system and initializes the application's global state.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23 * http://www.gnu.org/copyleft/gpl.html
28 if ( ini_get( 'mbstring.func_overload' ) ) {
29 die( 'MediaWiki does not support installations where mbstring.func_overload is non-zero.' );
32 # T17461: Make IE8 turn off content sniffing. Everybody else should ignore this
33 # We're adding it here so that it's *always* set, even for alternate entry
34 # points and when $wgOut gets disabled or overridden.
35 header( 'X-Content-Type-Options: nosniff' );
38 * @var float Request start time as fractional seconds since epoch
39 * @deprecated since 1.25; use $_SERVER['REQUEST_TIME_FLOAT'] or
40 * WebRequest::getElapsedTime() instead.
42 $wgRequestTime = $_SERVER['REQUEST_TIME_FLOAT'];
46 # Valid web server entry point, enable includes.
47 # Please don't move this line to includes/Defines.php. This line essentially
48 # defines a valid entry point. If you put it in includes/Defines.php, then
49 # any script that includes it becomes an entry point, thereby defeating
51 define( 'MEDIAWIKI', true );
53 # Full path to the installation directory.
54 $IP = getenv( 'MW_INSTALL_PATH' );
55 if ( $IP === false ) {
56 $IP = dirname( __DIR__
);
59 // If no LocalSettings file exists, try to display an error page
60 // (use a callback because it depends on TemplateParser)
61 if ( !defined( 'MW_CONFIG_CALLBACK' ) ) {
62 if ( !defined( 'MW_CONFIG_FILE' ) ) {
63 define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
65 if ( !is_readable( MW_CONFIG_FILE
) ) {
66 function wfWebStartNoLocalSettings() {
67 # LocalSettings.php is the per-site customization file. If it does not exist
68 # the wiki installer needs to be launched or the generated file uploaded to
69 # the root wiki directory. Give a hint, if it is not readable by the server.
71 require_once "$IP/includes/NoLocalSettings.php";
74 define( 'MW_CONFIG_CALLBACK', 'wfWebStartNoLocalSettings' );
78 // Custom setup for WebStart entry point
79 if ( !defined( 'MW_SETUP_CALLBACK' ) ) {
80 function wfWebStartSetup() {
81 # Initialise output buffering
82 # Check that there is no previous output or previously set up buffers, because
83 # that would cause us to potentially mix gzip and non-gzip output, creating a
86 if ( ob_get_level() == 0 ) {
87 require_once "$IP/includes/OutputHandler.php";
88 ob_start( 'wfOutputHandler' );
91 define( 'MW_SETUP_CALLBACK', 'wfWebStartSetup' );
94 require_once "$IP/includes/Setup.php";
96 # Multiple DBs or commits might be used; keep the request as transactional as possible
97 if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) {
98 ignore_user_abort( true );
101 if ( !defined( 'MW_API' ) &&
102 RequestContext
::getMain()->getRequest()->getHeader( 'Promise-Non-Write-API-Action' )
104 header( 'Cache-Control: no-cache' );
105 header( 'Content-Type: text/html; charset=utf-8' );
106 HttpStatus
::header( 400 );
107 $error = wfMessage( 'nonwrite-api-promise-error' )->escaped();
111 <head><meta charset="UTF-8" /></head>
118 header( 'Content-Length: ' . strlen( $content ) );