MediaWiki 1.16.0

[autoinstallsdev/mediawiki.git] / includes / WebStart.php

diff --git a/includes/WebStart.php b/includes/WebStart.php
index a9a6ad5fe90eab3390bc8d725749e8daa7dc14e3..d62b4a628cc6052e644340baf61c49039441a831 100644 (file)
--- a/includes/WebStart.php
+++ b/includes/WebStart.php
@@ -1,19 +1,9 @@
 <?php
 
-# This does the initial setup for a web request. It does some security checks, 
-# starts the profiler and loads the configuration, and optionally loads 
+# This does the initial setup for a web request. It does some security checks,
+# starts the profiler and loads the configuration, and optionally loads
 # Setup.php depending on whether MW_NO_SETUP is defined.
 
-# Test for PHP bug which breaks PHP 5.0.x on 64-bit...
-# As of 1.8 this breaks lots of common operations instead
-# of just some rare ones like export.
-$borked = str_replace( 'a', 'b', array( -1 => -1 ) );
-if( !isset( $borked[-1] ) ) {
-       echo "PHP 5.0.x is buggy on your 64-bit system; you must upgrade to PHP 5.1.x\n" .
-            "or higher. ABORTING. (http://bugs.php.net/bug.php?id=34879 for details)\n";
-       die( -1 );
-}
-
 # Protect against register_globals
 # This must be done before any globals are set by the code
 if ( ini_get( 'register_globals' ) ) {
@@ -56,7 +46,6 @@ if ( function_exists ( 'getrusage' ) ) {
        $wgRUstart = array();
 }
 unset( $IP );
-@ini_set( 'allow_url_fopen', 0 ); # For security
 
 # Valid web server entry point, enable includes.
 # Please don't move this line to includes/Defines.php. This line essentially
@@ -65,40 +54,80 @@ unset( $IP );
 # its purpose.
 define( 'MEDIAWIKI', true );
 
+# Full path to working directory.
+# Makes it possible to for example to have effective exclude path in apc.
+# Also doesn't break installations using symlinked includes, like
+# dirname( __FILE__ ) would do.
+$IP = getenv( 'MW_INSTALL_PATH' );
+if ( $IP === false ) {
+       $IP = realpath( '.' );
+}
+
+
 # Start profiler
-require_once( './StartProfiler.php' );
+if( file_exists("$IP/StartProfiler.php") ) {
+       require_once( "$IP/StartProfiler.php" );
+} else {
+       require_once( "$IP/includes/ProfilerStub.php" );
+}
 wfProfileIn( 'WebStart.php-conf' );
 
 # Load up some global defines.
-require_once( './includes/Defines.php' );
+require_once( "$IP/includes/Defines.php" );
+
+# Check for PHP 5
+if ( !function_exists( 'version_compare' ) 
+       || version_compare( phpversion(), '5.0.0' ) < 0
+) {
+       define( 'MW_PHP4', '1' );
+       require( "$IP/includes/DefaultSettings.php" );
+       require( "$IP/includes/templates/PHP4.php" );
+       exit;
+}
 
-# LocalSettings.php is the per site customization file. If it does not exit
-# the wiki installer need to be launched or the generated file moved from
-# ./config/ to ./
-if( !file_exists( './LocalSettings.php' ) ) {
-       $IP = '.';
-       require_once( './includes/DefaultSettings.php' ); # used for printing the version
-       require_once( './includes/templates/NoLocalSettings.php' );
-       die();
+# Test for PHP bug which breaks PHP 5.0.x on 64-bit...
+# As of 1.8 this breaks lots of common operations instead
+# of just some rare ones like export.
+$borked = str_replace( 'a', 'b', array( -1 => -1 ) );
+if( !isset( $borked[-1] ) ) {
+       echo "PHP 5.0.x is buggy on your 64-bit system; you must upgrade to PHP 5.1.x\n" .
+            "or higher. ABORTING. (http://bugs.php.net/bug.php?id=34879 for details)\n";
+       exit;
 }
 
-# Include this site setttings
-require_once( './LocalSettings.php' );
+# Start the autoloader, so that extensions can derive classes from core files
+require_once( "$IP/includes/AutoLoader.php" );
+
+if ( defined( 'MW_CONFIG_CALLBACK' ) ) {
+       # Use a callback function to configure MediaWiki
+       require_once( "$IP/includes/DefaultSettings.php" );
+       call_user_func( MW_CONFIG_CALLBACK );
+} else {
+       # LocalSettings.php is the per site customization file. If it does not exit
+       # the wiki installer need to be launched or the generated file moved from
+       # ./config/ to ./
+       if( !file_exists( "$IP/LocalSettings.php" ) ) {
+               require_once( "$IP/includes/DefaultSettings.php" ); # used for printing the version
+               require_once( "$IP/includes/templates/NoLocalSettings.php" );
+               die();
+       }
+
+       # Include site settings. $IP may be changed (hopefully before the AutoLoader is invoked)
+       require_once( "$IP/LocalSettings.php" );
+}
 wfProfileOut( 'WebStart.php-conf' );
-wfProfileIn( 'WebStart.php-ob_start' );
 
+wfProfileIn( 'WebStart.php-ob_start' );
 # Initialise output buffering
 if ( ob_get_level() ) {
        # Someone's been mixing configuration data with code!
        # How annoying.
 } elseif ( !defined( 'MW_NO_OUTPUT_BUFFER' ) ) {
-       require_once( './includes/OutputHandler.php' );
+       require_once( "$IP/includes/OutputHandler.php" );
        ob_start( 'wfOutputHandler' );
 }
-
 wfProfileOut( 'WebStart.php-ob_start' );
 
 if ( !defined( 'MW_NO_SETUP' ) ) {
-       require_once( './includes/Setup.php' );
+       require_once( "$IP/includes/Setup.php" );
 }
-