MediaWiki 1.41.2
WebStart.php
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1<?php
36# T17461: Make IE8 turn off content sniffing. Everybody else should ignore this
37# We're adding it here so that it's *always* set, even for alternate entry
38# points and when $wgOut gets disabled or overridden.
39use MediaWiki\Settings\SettingsBuilder;
40
41header( 'X-Content-Type-Options: nosniff' );
42
43# Valid web server entry point, enable includes.
44# Please don't move this line to includes/Defines.php. This line essentially
45# defines a valid entry point. If you put it in includes/Defines.php, then
46# any script that includes it becomes an entry point, thereby defeating
47# its purpose.
48define( 'MEDIAWIKI', true );
49
54function wfWebStartNoLocalSettings( SettingsBuilder $settings ) {
55 # LocalSettings.php is the per-site customization file. If it does not exist
56 # the wiki installer needs to be launched or the generated file uploaded to
57 # the root wiki directory. Give a hint, if it is not readable by the server.
58 require_once __DIR__ . '/Output/NoLocalSettings.php';
59 die();
60}
61
62require_once __DIR__ . '/BootstrapHelperFunctions.php';
63
64// If no LocalSettings file exists, try to display an error page
65// (use a callback because it depends on TemplateParser)
66if ( !defined( 'MW_CONFIG_CALLBACK' ) ) {
67 wfDetectLocalSettingsFile();
68 if ( !is_readable( MW_CONFIG_FILE ) ) {
69 define( 'MW_CONFIG_CALLBACK', 'wfWebStartNoLocalSettings' );
70 }
71}
72
73function wfWebStartSetup( SettingsBuilder $settings ) {
74 // Initialize the default MediaWiki output buffering if no buffer is already active.
75 // This avoids clashes with existing buffers in order to avoid problems,
76 // like mixing gzip and non-gzip output.
77 if ( ob_get_level() == 0 ) {
78 // During HTTP requests, MediaWiki normally buffers the response body in a string
79 // within OutputPage and prints it when ready. PHP buffers provide protection against
80 // premature sending of HTTP headers due to output from PHP warnings and notices.
81 // They also can be used to implement gzip support in PHP without the webserver knowing
82 // which requests yield HTML and which yield large files that can be streamed.
83 ob_start( [ MediaWiki\Output\OutputHandler::class, 'handle' ] );
84 }
85}
86
87// Custom setup for WebStart entry point
88if ( !defined( 'MW_SETUP_CALLBACK' ) ) {
89 define( 'MW_SETUP_CALLBACK', 'wfWebStartSetup' );
90}
91
92require_once __DIR__ . '/Setup.php';
93
94# Multiple DBs or commits might be used; keep the request as transactional as possible
95if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) {
96 ignore_user_abort( true );
97}
98
99if ( !defined( 'MW_API' ) && !defined( 'MW_REST_API' ) &&
100 RequestContext::getMain()->getRequest()->getHeader( 'Promise-Non-Write-API-Action' )
101) {
102 header( 'Cache-Control: no-cache' );
103 header( 'Content-Type: text/html; charset=utf-8' );
104 HttpStatus::header( 400 );
105 $errorHtml = wfMessage( 'nonwrite-api-promise-error' )
106 ->useDatabase( false )
107 ->inContentLanguage()
108 ->escaped();
109 $content = <<<HTML
110<!DOCTYPE html>
111<html>
112<head><meta charset="UTF-8" /></head>
113<body>
114$errorHtml
115</body>
116</html>
117
118HTML;
119 header( 'Content-Length: ' . strlen( $content ) );
120 echo $content;
121 die();
122}
wfDetectLocalSettingsFile
wfDetectLocalSettingsFile(?string $installationPath=null)
Decide and remember where to load LocalSettings from.
Definition BootstrapHelperFunctions.php:30
wfMessage
wfMessage( $key,... $params)
This is the function for getting translated interface messages.
Definition GlobalFunctions.php:903
wfWebStartSetup
if(!defined('MW_CONFIG_CALLBACK')) wfWebStartSetup(SettingsBuilder $settings)
Definition WebStart.php:73
wfWebStartNoLocalSettings
wfWebStartNoLocalSettings(SettingsBuilder $settings)
Definition WebStart.php:54
HttpStatus\header
static header( $code)
Output an HTTP status code header.
Definition HttpStatus.php:96
MediaWiki\Settings\SettingsBuilder
Builder class for constructing a Config object from a set of sources during bootstrap.
Definition SettingsBuilder.php:55
MediaWiki
A helper class for throttling authentication attempts.
$content
$content
Definition router.php:76