--- /dev/null
+<?php
+
+# MediaWiki web-based config/installation
+# Copyright (C) 2004 Brion Vibber <brion@pobox.com>
+# http://www.mediawiki.org/
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# http://www.gnu.org/copyleft/gpl.html
+
+
+/**
+ * This is to be the fancy new installer package for MediaWiki,
+ * which will work with table prefixes, both MySQL and PostgreSQL, and
+ * ideally such wacky things as text-based install as well as web.
+ *
+ * It's not done yet.
+ *
+ * @todo finish...
+ * @package MediaWiki
+ * @subpackage Installer
+ */
+
+$IP = ".."; # Just to suppress notices, not for anything useful
+define( "MEDIAWIKI", true );
+define( "MEDIAWIKI_INSTALL", true );
+require_once( "../includes/Defines.php" );
+require_once( "../includes/DefaultSettings.php" );
+require_once( "../includes/MagicWord.php" );
+require_once( "../includes/Namespace.php" );
+require_once( "../install-utils.inc" );
+require_once( "../maintenance/updaters.inc" );
+require_once( "../maintenance/convertLinks.inc" );
+require_once( "../maintenance/archives/moveCustomMessages.inc" );
+
+class InstallInterface {
+ function message( $text ) {
+ echo $text . "\n";
+ }
+
+ function warning( $text ) {
+ echo "** $text **\n";
+ }
+
+ function formatLink( $url, $text = '' ) {
+ if( $text ) {
+ return "$text ($url)";
+ } else {
+ return $url;
+ }
+ }
+
+ function showHeader() {
+ global $wgVersion;
+ echo "MediaWiki $wgVersion installation\n\n";
+ }
+}
+
+class Installer {
+ var $settings = array();
+
+ function Installer( &$interface ) {
+ $this->ui =& $interface;
+ }
+
+ function runInstall() {
+ $this->ui->showHeader();
+ $this->preInstallChecks();
+ }
+
+ function override( $var, $value ) {
+ $this->settings[$var] = $value;
+ }
+
+ function preInstallChecks() {
+ $checks = array(
+ 'checkConfigured',
+ 'checkInstalled',
+ 'checkWritable',
+ 'checkPHP',
+ 'checkGlobals',
+ 'checkSafeMode',
+ 'checkSAPI',
+ 'checkMemory',
+ 'checkZlib',
+ 'checkImageMagick',
+ 'checkGD'
+ );
+ foreach( $checks as $check ) {
+ if( !$this->$check() ) {
+ $this->ui->warning( "Installation aborted." );
+ return false;
+ }
+ }
+ }
+
+ function checkConfigured() {
+ if( file_exists( "../LocalSettings.php" ) || file_exists( "../AdminSettings.php" ) ) {
+ $this->ui->warning( "Already configured." );
+ return false;
+ }
+ return true;
+ }
+
+ function checkInstalled() {
+ if( file_exists( "./LocalSettings.php" ) || file_exists( "./AdminSettings.php" ) ) {
+ $this->ui->warning( "Already configured; move LocalSettings.php from this directory to the parent dir and take the wiki for a spin." );
+ return false;
+ }
+ return true;
+ }
+
+ function checkWritable() {
+ if( !is_writable( "." ) ) {
+ $this->ui->warning( "<h2>Can't write config file, aborting</h2>
+
+ <p>In order to configure the wiki you have to make the <tt>config</tt> subdirectory
+ writable by the web server. Once configuration is done you'll move the created
+ <tt>LocalSettings.php</tt> to the parent directory, and for added safety you can
+ then remove the <tt>config</tt> subdirectory entirely.</p>
+
+ <p>To make the directory writable on a Unix/Linux system:</p>
+
+ <pre>
+ cd <i>/path/to/wiki</i>
+ chmod a+w config
+ </pre>" );
+
+ return false;
+ }
+ return true;
+ }
+
+ function checkPHP() {
+ $ver = phpversion();
+ if( version_compare( $ver, "4.1.2", "lt" ) ) {
+ $this->ui->warning( "Your version of PHP ($ver) is too old and will probably not work. We try to support 4.1.2 and above, but a current 4.3 or 5.0 release is preferred." );
+ return false;
+ }
+ $this->ui->message( "PHP version $ver, ok" );
+ if( version_compare( $ver, "gte", "5.0" ) ) {
+ $this->ui->warning( "A PHP5-compatible version of the PHPTAL template system is not yet bundled. To get the regular default page layout, you will need to manually install a development snapshot. (The wiki will function normally using an older layout if you do not.)" );
+ }
+ return true;
+ }
+
+ function checkGlobals() {
+ if( ini_get( 'register_globals' ) ) {
+ $this->ui->warning( "PHP's " .
+ $this->ui->formatLink( "http://php.net/register_globals", "register_globals" ) .
+ "option is enabled." .
+ "MediaWiki will work correctly, but this setting
+ increases your exposure to potential security vulnerabilities in PHP-based
+ software running on your server. <b>You should disable it if you are able.</b>" );
+ }
+ return true;
+ }
+
+ function checkSafeMode() {
+ if( ini_get( 'safe_mode' ) ) {
+ $this->ui->warning( "PHP's
+ <a href='http://www.php.net/features.safe-mode'>safe mode</a> is active!</b>
+ You will likely have problems caused by this. You may need to make the
+ 'images' subdirectory writable or specify a TMP environment variable pointing to
+ a writable temporary directory owned by you, since safe mode breaks the system
+ temporary directory." );
+ $this->ui->message( "...due to safe mode restrictions, uploads will use flat directory mode if enabled." );
+ $this->override( 'wgHashedUploadDirectory', true );
+ } else {
+ $this->ui->message( "PHP is not running in safe mode (this is good!)" );
+ $this->ui->message( "...uploads will use hashed directory tree mode if enabled." );
+ }
+ return true;
+ }
+
+ function checkSAPI() {
+ $sapi = php_sapi_name();
+ $this->ui->message( "PHP server API is $sapi..." );
+ switch( $sapi ) {
+ case "apache":
+ case "apache2handler":
+ $this->ui->message( "...ok, using pretty URLs (<tt>index.php/Page_Title</tt>)" );
+ break;
+ case "cgi":
+ case "cgi-fcgi":
+ case "apache2filter":
+ $this->ui->message( "using ugly URLs (<tt>index.php?title=Page_Title</tt>)" );
+ $this->override( 'prettyURLs', false );
+ # FIXME
+ break;
+ default:
+ $this->ui->message( "unknown; using pretty URLs (<tt>index.php/Page_Title</tt>), if you have trouble change this in <tt>LocalSettings.php</tt>" );
+ }
+ return true;
+ }
+
+ function checkMemory() {
+ $memlimit = ini_get( "memory_limit" );
+ if( empty( $memlimit ) ) {
+ $this->ui->message( "PHP is configured with no <tt>memory_limit</tt>." );
+ return true;
+ } else {
+ $this->ui->message( "PHP's <tt>memory_limit</tt> is $memlimit... " );
+ $n = IntVal( $memlimit );
+ if( preg_match( '/^([0-9]+)[Mm]$/', trim( $memlimit ), $m ) ) {
+ $n = IntVal( $m[1] * (1024*1024) );
+ }
+ if( $n < 20*1024*1024 ) {
+ if( false === ini_set( "memory_limit", "20M" ) ) {
+ $this->ui->warning( "...failed to raise the limit to 20M; you may have problems" );
+ } else {
+ $this->ui->message( "...raising limit to 20M" );
+ $this->override( 'raiseMemory', true );
+ }
+ }
+ return true;
+ }
+ }
+
+ function checkZlib() {
+ $zlib = function_exists( "gzencode" );
+ if( $zlib ) {
+ $this->ui->message( "Have zlib support; enabling output compression." );
+ # This is a runtime thing, we're just letting the user know about it?
+ } else {
+ $this->ui->message( "No zlib support." );
+ }
+ return true;
+ }
+
+ function checkImageMagick() {
+ $imcheck = array( "/usr/bin", "/usr/local/bin", "/sw/bin", "/opt/local/bin" );
+ foreach( $imcheck as $dir ) {
+ $im = "$dir/convert";
+ if( file_exists( $im ) ) {
+ $this->ui->message( "Found ImageMagick: <tt>$im</tt>; image thumbnailing will be enabled if you enable uploads." );
+ $this->override( "wgImageMagick", $im );
+ $this->override( "wgUseImageResize", true );
+ break;
+ }
+ }
+ return true;
+ }
+
+ function checkGD() {
+ $gd = function_exists( "imagejpeg" );
+ if( $gd ) {
+ $this->ui->message( "Found GD graphics library built-in, image thumbnailing will be enabled if you enable uploads" );
+ $this->override( "wgUseImageResize", true );
+ } else {
+ if( !isset( $this->settings['wgUseImageResize'] ) ) {
+ $this->warning( "Couldn't find GD library or ImageMagick; image thumbnailing disabled." );
+ }
+ }
+ return true;
+ }
+
+
+}
+
+$ui =& new InstallInterface();
+$i =& new Installer( $ui );
+$i->runInstall();
+
+?>
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