MediaWiki  master
WebStart.php
Go to the documentation of this file.
1 <?php
28 # T17461: Make IE8 turn off content sniffing. Everybody else should ignore this
29 # We're adding it here so that it's *always* set, even for alternate entry
30 # points and when $wgOut gets disabled or overridden.
31 header( 'X-Content-Type-Options: nosniff' );
32 
33 # Valid web server entry point, enable includes.
34 # Please don't move this line to includes/Defines.php. This line essentially
35 # defines a valid entry point. If you put it in includes/Defines.php, then
36 # any script that includes it becomes an entry point, thereby defeating
37 # its purpose.
38 define( 'MEDIAWIKI', true );
39 
40 # Full path to the installation directory.
41 $IP = getenv( 'MW_INSTALL_PATH' );
42 if ( $IP === false ) {
43  $IP = dirname( __DIR__ );
44 }
45 
46 // If no LocalSettings file exists, try to display an error page
47 // (use a callback because it depends on TemplateParser)
48 if ( !defined( 'MW_CONFIG_CALLBACK' ) ) {
49  if ( !defined( 'MW_CONFIG_FILE' ) ) {
50  define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
51  }
52  if ( !is_readable( MW_CONFIG_FILE ) ) {
53 
54  function wfWebStartNoLocalSettings() {
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  global $IP;
59  require_once "$IP/includes/NoLocalSettings.php";
60  die();
61  }
62 
63  define( 'MW_CONFIG_CALLBACK', 'wfWebStartNoLocalSettings' );
64  }
65 }
66 
67 // Custom setup for WebStart entry point
68 if ( !defined( 'MW_SETUP_CALLBACK' ) ) {
69 
70  function wfWebStartSetup() {
71  // Initialise output buffering
72  // Check for previously set up buffers, to avoid a mix of gzip and non-gzip output.
73  if ( ob_get_level() == 0 ) {
74  ob_start( 'MediaWiki\\OutputHandler::handle' );
75  }
76  }
77 
78  define( 'MW_SETUP_CALLBACK', 'wfWebStartSetup' );
79 }
80 
81 require_once "$IP/includes/Setup.php";
82 
83 # Multiple DBs or commits might be used; keep the request as transactional as possible
84 if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) {
85  ignore_user_abort( true );
86 }
87 
88 if ( !defined( 'MW_API' ) &&
89  RequestContext::getMain()->getRequest()->getHeader( 'Promise-Non-Write-API-Action' )
90 ) {
91  header( 'Cache-Control: no-cache' );
92  header( 'Content-Type: text/html; charset=utf-8' );
93  HttpStatus::header( 400 );
94  $errorHtml = wfMessage( 'nonwrite-api-promise-error' )
95  ->useDatabase( false )
96  ->inContentLanguage()
97  ->escaped();
98  $content = <<<HTML
99 <!DOCTYPE html>
100 <html>
101 <head><meta charset="UTF-8" /></head>
102 <body>
103 $errorHtml
104 </body>
105 </html>
106 
107 HTML;
108  header( 'Content-Length: ' . strlen( $content ) );
109  echo $content;
110  die();
111 }
$IP
Definition: WebStart.php:41
static getMain()
Get the RequestContext object associated with the main request.
static header( $code)
Output an HTTP status code header.
Definition: HttpStatus.php:96
$content
Definition: router.php:78
wfMessage( $key,... $params)
This is the function for getting translated interface messages.