From 17af3bff2e6c78b92bdc108cf46fd958857ebf7d Mon Sep 17 00:00:00 2001 From: Brion Vibber Date: Thu, 28 Oct 2004 08:12:48 +0000 Subject: [PATCH] Start on refactoring the installer to better support new features (table prefixes, PostgreSQL) and optional text-mode/scripted install. Not yet functional. --- config/installer.php | 276 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 config/installer.php diff --git a/config/installer.php b/config/installer.php new file mode 100644 index 0000000000..237c7a3f21 --- /dev/null +++ b/config/installer.php @@ -0,0 +1,276 @@ + +# 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( "

Can't write config file, aborting

+ +

In order to configure the wiki you have to make the config subdirectory + writable by the web server. Once configuration is done you'll move the created + LocalSettings.php to the parent directory, and for added safety you can + then remove the config subdirectory entirely.

+ +

To make the directory writable on a Unix/Linux system:

+ + 
+	cd /path/to/wiki
+	chmod a+w config
+
" ); + + 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. You should disable it if you are able." ); + } + return true; + } + + function checkSafeMode() { + if( ini_get( 'safe_mode' ) ) { + $this->ui->warning( "PHP's + safe mode is active! + 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 (index.php/Page_Title)" ); + break; + case "cgi": + case "cgi-fcgi": + case "apache2filter": + $this->ui->message( "using ugly URLs (index.php?title=Page_Title)" ); + $this->override( 'prettyURLs', false ); + # FIXME + break; + default: + $this->ui->message( "unknown; using pretty URLs (index.php/Page_Title), if you have trouble change this in LocalSettings.php" ); + } + return true; + } + + function checkMemory() { + $memlimit = ini_get( "memory_limit" ); + if( empty( $memlimit ) ) { + $this->ui->message( "PHP is configured with no memory_limit." ); + return true; + } else { + $this->ui->message( "PHP's memory_limit 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: $im; 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(); + +?> \ No newline at end of file -- 2.20.1