29 if ( ini_get(
'mbstring.func_overload' ) ) {
30 die(
'MediaWiki does not support installations where mbstring.func_overload is non-zero.' );
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' );
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
52 define(
'MEDIAWIKI',
true );
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 $IP = realpath(
'.' ) ?: dirname( __DIR__ );
63 # Grab profiling functions
64 require_once
"$IP/includes/profiler/ProfilerFunctions.php";
66 # Start the autoloader, so that extensions can derive classes from core files
67 require_once
"$IP/includes/AutoLoader.php";
69 # Load up some global defines.
70 require_once
"$IP/includes/Defines.php";
74 if ( file_exists(
"$IP/StartProfiler.php" ) ) {
75 require
"$IP/StartProfiler.php";
78 # Load default settings
79 require_once
"$IP/includes/DefaultSettings.php";
81 # Load global functions
82 require_once
"$IP/includes/GlobalFunctions.php";
84 # Load composer's autoloader if present
85 if ( is_readable(
"$IP/vendor/autoload.php" ) ) {
86 require_once
"$IP/vendor/autoload.php";
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' ) ) {
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.'
103 trigger_error( $message, E_USER_ERROR );
107 # Install a header callback
110 if ( defined(
'MW_CONFIG_CALLBACK' ) ) {
111 # Use a callback function to configure MediaWiki
114 if ( !defined(
'MW_CONFIG_FILE' ) ) {
115 define(
'MW_CONFIG_FILE',
"$IP/LocalSettings.php" );
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";
126 # Include site settings. $IP may be changed (hopefully before the AutoLoader is invoked)
127 require_once MW_CONFIG_FILE;
130 # Initialise output buffering
131 # Check that there is no previous output or previously set up buffers, because
132 # that would cause us to potentially mix gzip and non-gzip output, creating a
134 if ( ob_get_level() == 0 ) {
135 require_once
"$IP/includes/OutputHandler.php";
136 ob_start(
'wfOutputHandler' );
139 require_once
"$IP/includes/Setup.php";
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 );
146 if ( !defined(
'MW_API' ) &&
149 header(
'Cache-Control: no-cache' );
150 header(
'Content-Type: text/html; charset=utf-8' );
152 $error =
wfMessage(
'nonwrite-api-promise-error' )->escaped();
156 <head><meta charset=
"UTF-8" /></head>
163 header(
'Content-Length: ' . strlen(
$content ) );