MediaWiki  1.27.2
WebStart.php
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1 <?php
29 if ( ini_get( 'mbstring.func_overload' ) ) {
30  die( 'MediaWiki does not support installations where mbstring.func_overload is non-zero.' );
31 }
32 
33 # bug 15461: Make IE8 turn off content sniffing. Everybody else should ignore this
34 # We're adding it here so that it's *always* set, even for alternate entry
35 # points and when $wgOut gets disabled or overridden.
36 header( 'X-Content-Type-Options: nosniff' );
37 
43 $wgRequestTime = $_SERVER['REQUEST_TIME_FLOAT'];
44 
45 unset( $IP );
46 
47 # Valid web server entry point, enable includes.
48 # Please don't move this line to includes/Defines.php. This line essentially
49 # defines a valid entry point. If you put it in includes/Defines.php, then
50 # any script that includes it becomes an entry point, thereby defeating
51 # its purpose.
52 define( 'MEDIAWIKI', true );
53 
54 # Full path to working directory.
55 # Makes it possible to for example to have effective exclude path in apc.
56 # __DIR__ breaks symlinked includes, but realpath() returns false
57 # if we don't have permissions on parent directories.
58 $IP = getenv( 'MW_INSTALL_PATH' );
59 if ( $IP === false ) {
60  $IP = realpath( '.' ) ?: dirname( __DIR__ );
61 }
62 
63 # Grab profiling functions
64 require_once "$IP/includes/profiler/ProfilerFunctions.php";
65 
66 # Start the autoloader, so that extensions can derive classes from core files
67 require_once "$IP/includes/AutoLoader.php";
68 
69 # Load up some global defines.
70 require_once "$IP/includes/Defines.php";
71 
72 # Start the profiler
74 if ( file_exists( "$IP/StartProfiler.php" ) ) {
75  require "$IP/StartProfiler.php";
76 }
77 
78 # Load default settings
79 require_once "$IP/includes/DefaultSettings.php";
80 
81 # Load global functions
82 require_once "$IP/includes/GlobalFunctions.php";
83 
84 # Load composer's autoloader if present
85 if ( is_readable( "$IP/vendor/autoload.php" ) ) {
86  require_once "$IP/vendor/autoload.php";
87 }
88 
89 # Assert that composer dependencies were successfully loaded
90 # Purposely no leading \ due to it breaking HHVM RepoAuthorative mode
91 # PHP works fine with both versions
92 # See https://github.com/facebook/hhvm/issues/5833
93 if ( !interface_exists( 'Psr\Log\LoggerInterface' ) ) {
94  $message = (
95  'MediaWiki requires the <a href="https://github.com/php-fig/log">PSR-3 logging ' .
96  "library</a> to be present. This library is not embedded directly in MediaWiki's " .
97  "git repository and must be installed separately by the end user.\n\n" .
98  'Please see <a href="https://www.mediawiki.org/wiki/Download_from_Git' .
99  '#Fetch_external_libraries">mediawiki.org</a> for help on installing ' .
100  'the required components.'
101  );
102  echo $message;
103  trigger_error( $message, E_USER_ERROR );
104  die( 1 );
105 }
106 
107 if ( defined( 'MW_CONFIG_CALLBACK' ) ) {
108  # Use a callback function to configure MediaWiki
109  call_user_func( MW_CONFIG_CALLBACK );
110 } else {
111  if ( !defined( 'MW_CONFIG_FILE' ) ) {
112  define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
113  }
114 
115  # LocalSettings.php is the per site customization file. If it does not exist
116  # the wiki installer needs to be launched or the generated file uploaded to
117  # the root wiki directory. Give a hint, if it is not readable by the server.
118  if ( !is_readable( MW_CONFIG_FILE ) ) {
119  require_once "$IP/includes/NoLocalSettings.php";
120  die();
121  }
122 
123  # Include site settings. $IP may be changed (hopefully before the AutoLoader is invoked)
124  require_once MW_CONFIG_FILE;
125 }
126 
127 # Initialise output buffering
128 # Check that there is no previous output or previously set up buffers, because
129 # that would cause us to potentially mix gzip and non-gzip output, creating a
130 # big mess.
131 if ( ob_get_level() == 0 ) {
132  require_once "$IP/includes/OutputHandler.php";
133  ob_start( 'wfOutputHandler' );
134 }
135 
136 if ( !defined( 'MW_NO_SETUP' ) ) {
137  require_once "$IP/includes/Setup.php";
138 }
139 
140 # Multiple DBs or commits might be used; keep the request as transactional as possible
141 if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) {
142  ignore_user_abort( true );
143 }
144 
145 if ( !defined( 'MW_API' ) &&
146  RequestContext::getMain()->getRequest()->getHeader( 'Promise-Non-Write-API-Action' )
147 ) {
148  header( 'Cache-Control: no-cache' );
149  header( 'Content-Type: text/html; charset=utf-8' );
150  HttpStatus::header( 400 );
151  $error = wfMessage( 'nonwrite-api-promise-error' )->escaped();
152  $content = <<<EOT
153 <!DOCTYPE html>
154 <html>
155 <head><meta charset="UTF-8" /></head>
156 <body>
157 $error
158 </body>
159 </html>
160 
161 EOT;
162  header( 'Content-Length: ' . strlen( $content ) );
163  echo $content;
164  die();
165 }
$IP
Definition: WebStart.php:58
static header($code)
Output an HTTP status code header.
Definition: HttpStatus.php:96
$wgProfiler
Definition: WebStart.php:73
static getMain()
Static methods.
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const MW_CONFIG_CALLBACK
Definition: install.php:30
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
this hook is for auditing only RecentChangesLinked and Watchlist RecentChangesLinked and Watchlist e g Watchlist removed from all revisions and log entries to which it was applied This gives extensions a chance to take it off their books as the deletion has already been partly carried out by this point or something similar the user will be unable to create the tag set and then return false from the hook function Ensure you consume the ChangeTagAfterDelete hook to carry out custom deletion actions as context called by AbstractContent::getParserOutput May be used to override the normal model specific rendering of page content $content
Definition: hooks.txt:1004