MediaWiki  1.29.1
WebStart.php
Go to the documentation of this file.
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 # T17461: 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( $message, E_USER_ERROR );
104  die( 1 );
105 }
106 
107 # Install a header callback
109 
110 if ( defined( 'MW_CONFIG_CALLBACK' ) ) {
111  # Use a callback function to configure MediaWiki
112  call_user_func( MW_CONFIG_CALLBACK );
113 } else {
114  if ( !defined( 'MW_CONFIG_FILE' ) ) {
115  define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
116  }
117 
118  # LocalSettings.php is the per site customization file. If it does not exist
119  # the wiki installer needs to be launched or the generated file uploaded to
120  # the root wiki directory. Give a hint, if it is not readable by the server.
121  if ( !is_readable( MW_CONFIG_FILE ) ) {
122  require_once "$IP/includes/NoLocalSettings.php";
123  die();
124  }
125 
126  # Include site settings. $IP may be changed (hopefully before the AutoLoader is invoked)
127  require_once MW_CONFIG_FILE;
128 }
129 
130 # Initialise output buffering
131 # Check that there is no previous output or previously set up buffers, because
132 # that would cause us to potentially mix gzip and non-gzip output, creating a
133 # big mess.
134 if ( ob_get_level() == 0 ) {
135  require_once "$IP/includes/OutputHandler.php";
136  ob_start( 'wfOutputHandler' );
137 }
138 
139 require_once "$IP/includes/Setup.php";
140 
141 # Multiple DBs or commits might be used; keep the request as transactional as possible
142 if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) {
143  ignore_user_abort( true );
144 }
145 
146 if ( !defined( 'MW_API' ) &&
147  RequestContext::getMain()->getRequest()->getHeader( 'Promise-Non-Write-API-Action' )
148 ) {
149  header( 'Cache-Control: no-cache' );
150  header( 'Content-Type: text/html; charset=utf-8' );
151  HttpStatus::header( 400 );
152  $error = wfMessage( 'nonwrite-api-promise-error' )->escaped();
153  $content = <<<EOT
154 <!DOCTYPE html>
155 <html>
156 <head><meta charset="UTF-8" /></head>
157 <body>
158 $error
159 </body>
160 </html>
161 
162 EOT;
163  header( 'Content-Length: ' . strlen( $content ) );
164  echo $content;
165  die();
166 }
MediaWiki\HeaderCallback\register
static register()
Register a callback to be called when headers are sent.
Definition: HeaderCallback.php:14
php
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
$content
this hook is for auditing only RecentChangesLinked and Watchlist RecentChangesLinked and Watchlist Do not use this to implement individual filters if they are compatible with the ChangesListFilter and ChangesListFilterGroup structure use sub classes of those in conjunction with the ChangesListSpecialPageStructuredFilters hook This hook can be used to implement filters that do not implement that or custom behavior that is not an individual filter e g Watchlist and Watchlist you will want to construct new ChangesListBooleanFilter or ChangesListStringOptionsFilter objects When constructing you specify which group they belong to You can reuse existing or create your you must register them with $special registerFilterGroup 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:1049
MW_CONFIG_CALLBACK
const MW_CONFIG_CALLBACK
Definition: install.php:26
RequestContext\getMain
static getMain()
Static methods.
Definition: RequestContext.php:468
HttpStatus\header
static header( $code)
Output an HTTP status code header.
Definition: HttpStatus.php:96
$wgRequestTime
float $wgRequestTime
Request start time as fractional seconds since epoch.
Definition: WebStart.php:43
$wgProfiler
$wgProfiler
Definition: WebStart.php:73
wfMessage
either a unescaped string or a HtmlArmor object after in associative array form externallinks including delete and has completed for all link tables whether this was an auto creation default is conds Array Extra conditions for the No matching items in log is displayed if loglist is empty msgKey Array If you want a nice box with a set this to the key of the message First element is the message additional optional elements are parameters for the key that are processed with wfMessage() -> params() ->parseAsBlock() - offset Set to overwrite offset parameter in $wgRequest set to '' to unset offset - wrap String Wrap the message in html(usually something like "&lt
$IP
$IP
Definition: WebStart.php:58