--- /dev/null
+<?php
+/**
+ * Base code for MediaWiki installer.
+ *
+ * @file
+ * @ingroup Deployment
+ */
+
+/**
+ * This documentation group collects source code files with deployment functionality.
+ *
+ * @defgroup Deployment Deployment
+ */
+
+/**
+ * Base installer class.
+ *
+ * This class provides the base for installation and update functionality
+ * for both MediaWiki core and extensions.
+ *
+ * @ingroup Deployment
+ * @since 1.17
+ */
+abstract class Installer {
+
+ // This is the absolute minimum PHP version we can support
+ const MINIMUM_PHP_VERSION = '5.2.3';
+
+ /**
+ * @var array
+ */
+ protected $settings;
+
+ /**
+ * Cached DB installer instances, access using getDBInstaller().
+ *
+ * @var array
+ */
+ protected $dbInstallers = array();
+
+ /**
+ * Minimum memory size in MB.
+ *
+ * @var integer
+ */
+ protected $minMemorySize = 50;
+
+ /**
+ * Cached Title, used by parse().
+ *
+ * @var Title
+ */
+ protected $parserTitle;
+
+ /**
+ * Cached ParserOptions, used by parse().
+ *
+ * @var ParserOptions
+ */
+ protected $parserOptions;
+
+ /**
+ * Known database types. These correspond to the class names <type>Installer,
+ * and are also MediaWiki database types valid for $wgDBtype.
+ *
+ * To add a new type, create a <type>Installer class and a Database<type>
+ * class, and add a config-type-<type> message to MessagesEn.php.
+ *
+ * @var array
+ */
+ protected static $dbTypes = array(
+ 'mysql',
+ 'postgres',
+ 'oracle',
+ 'sqlite',
+ );
+
+ /**
+ * A list of environment check methods called by doEnvironmentChecks().
+ * These may output warnings using showMessage(), and/or abort the
+ * installation process by returning false.
+ *
+ * @var array
+ */
+ protected $envChecks = array(
+ 'envCheckDB',
+ 'envCheckRegisterGlobals',
+ 'envCheckBrokenXML',
+ 'envCheckPHP531',
+ 'envCheckMagicQuotes',
+ 'envCheckMagicSybase',
+ 'envCheckMbstring',
+ 'envCheckZE1',
+ 'envCheckSafeMode',
+ 'envCheckXML',
+ 'envCheckPCRE',
+ 'envCheckMemory',
+ 'envCheckCache',
+ 'envCheckDiff3',
+ 'envCheckGraphics',
+ 'envCheckPath',
+ 'envCheckExtension',
+ 'envCheckShellLocale',
+ 'envCheckUploadsDirectory',
+ 'envCheckLibicu',
+ 'envCheckSuhosinMaxValueLength',
+ );
+
+ /**
+ * MediaWiki configuration globals that will eventually be passed through
+ * to LocalSettings.php. The names only are given here, the defaults
+ * typically come from DefaultSettings.php.
+ *
+ * @var array
+ */
+ protected $defaultVarNames = array(
+ 'wgSitename',
+ 'wgPasswordSender',
+ 'wgLanguageCode',
+ 'wgRightsIcon',
+ 'wgRightsText',
+ 'wgRightsUrl',
+ 'wgMainCacheType',
+ 'wgEnableEmail',
+ 'wgEnableUserEmail',
+ 'wgEnotifUserTalk',
+ 'wgEnotifWatchlist',
+ 'wgEmailAuthentication',
+ 'wgDBtype',
+ 'wgDiff3',
+ 'wgImageMagickConvertCommand',
+ 'IP',
+ 'wgScriptPath',
+ 'wgScriptExtension',
+ 'wgMetaNamespace',
+ 'wgDeletedDirectory',
+ 'wgEnableUploads',
+ 'wgLogo',
+ 'wgShellLocale',
+ 'wgSecretKey',
+ 'wgUseInstantCommons',
+ 'wgUpgradeKey',
+ 'wgDefaultSkin',
+ 'wgResourceLoaderMaxQueryLength',
+ );
+
+ /**
+ * Variables that are stored alongside globals, and are used for any
+ * configuration of the installation process aside from the MediaWiki
+ * configuration. Map of names to defaults.
+ *
+ * @var array
+ */
+ protected $internalDefaults = array(
+ '_UserLang' => 'en',
+ '_Environment' => false,
+ '_CompiledDBs' => array(),
+ '_SafeMode' => false,
+ '_RaiseMemory' => false,
+ '_UpgradeDone' => false,
+ '_InstallDone' => false,
+ '_Caches' => array(),
+ '_InstallPassword' => '',
+ '_SameAccount' => true,
+ '_CreateDBAccount' => false,
+ '_NamespaceType' => 'site-name',
+ '_AdminName' => '', // will be set later, when the user selects language
+ '_AdminPassword' => '',
+ '_AdminPassword2' => '',
+ '_AdminEmail' => '',
+ '_Subscribe' => false,
+ '_SkipOptional' => 'continue',
+ '_RightsProfile' => 'wiki',
+ '_LicenseCode' => 'none',
+ '_CCDone' => false,
+ '_Extensions' => array(),
+ '_MemCachedServers' => '',
+ '_UpgradeKeySupplied' => false,
+ '_ExistingDBSettings' => false,
+ );
+
+ /**
+ * The actual list of installation steps. This will be initialized by getInstallSteps()
+ *
+ * @var array
+ */
+ private $installSteps = array();
+
+ /**
+ * Extra steps for installation, for things like DatabaseInstallers to modify
+ *
+ * @var array
+ */
+ protected $extraInstallSteps = array();
+
+ /**
+ * Known object cache types and the functions used to test for their existence.
+ *
+ * @var array
+ */
+ protected $objectCaches = array(
+ 'xcache' => 'xcache_get',
+ 'apc' => 'apc_fetch',
+ 'eaccel' => 'eaccelerator_get',
+ 'wincache' => 'wincache_ucache_get'
+ );
+
+ /**
+ * User rights profiles.
+ *
+ * @var array
+ */
+ public $rightsProfiles = array(
+ 'wiki' => array(),
+ 'no-anon' => array(
+ '*' => array( 'edit' => false )
+ ),
+ 'fishbowl' => array(
+ '*' => array(
+ 'createaccount' => false,
+ 'edit' => false,
+ ),
+ ),
+ 'private' => array(
+ '*' => array(
+ 'createaccount' => false,
+ 'edit' => false,
+ 'read' => false,
+ ),
+ ),
+ );
+
+ /**
+ * License types.
+ *
+ * @var array
+ */
+ public $licenses = array(
+ 'cc-by-sa' => array(
+ 'url' => 'http://creativecommons.org/licenses/by-sa/3.0/',
+ 'icon' => '{$wgStylePath}/common/images/cc-by-sa.png',
+ ),
+ 'cc-by-nc-sa' => array(
+ 'url' => 'http://creativecommons.org/licenses/by-nc-sa/3.0/',
+ 'icon' => '{$wgStylePath}/common/images/cc-by-nc-sa.png',
+ ),
+ 'cc-0' => array(
+ 'url' => 'https://creativecommons.org/publicdomain/zero/1.0/',
+ 'icon' => '{$wgStylePath}/common/images/cc-0.png',
+ ),
+ 'pd' => array(
+ 'url' => 'http://creativecommons.org/licenses/publicdomain/',
+ 'icon' => '{$wgStylePath}/common/images/public-domain.png',
+ ),
+ 'gfdl-old' => array(
+ 'url' => 'http://www.gnu.org/licenses/old-licenses/fdl-1.2.html',
+ 'icon' => '{$wgStylePath}/common/images/gnu-fdl.png',
+ ),
+ 'gfdl-current' => array(
+ 'url' => 'http://www.gnu.org/copyleft/fdl.html',
+ 'icon' => '{$wgStylePath}/common/images/gnu-fdl.png',
+ ),
+ 'none' => array(
+ 'url' => '',
+ 'icon' => '',
+ 'text' => ''
+ ),
+ 'cc-choose' => array(
+ // Details will be filled in by the selector.
+ 'url' => '',
+ 'icon' => '',
+ 'text' => '',
+ ),
+ );
+
+ /**
+ * URL to mediawiki-announce subscription
+ */
+ protected $mediaWikiAnnounceUrl = 'https://lists.wikimedia.org/mailman/subscribe/mediawiki-announce';
+
+ /**
+ * Supported language codes for Mailman
+ */
+ protected $mediaWikiAnnounceLanguages = array(
+ 'ca', 'cs', 'da', 'de', 'en', 'es', 'et', 'eu', 'fi', 'fr', 'hr', 'hu',
+ 'it', 'ja', 'ko', 'lt', 'nl', 'no', 'pl', 'pt', 'pt-br', 'ro', 'ru',
+ 'sl', 'sr', 'sv', 'tr', 'uk'
+ );
+
+ /**
+ * UI interface for displaying a short message
+ * The parameters are like parameters to wfMsg().
+ * The messages will be in wikitext format, which will be converted to an
+ * output format such as HTML or text before being sent to the user.
+ */
+ public abstract function showMessage( $msg /*, ... */ );
+
+ /**
+ * Same as showMessage(), but for displaying errors
+ */
+ public abstract function showError( $msg /*, ... */ );
+
+ /**
+ * Show a message to the installing user by using a Status object
+ * @param $status Status
+ */
+ public abstract function showStatusMessage( Status $status );
+
+ /**
+ * Constructor, always call this from child classes.
+ */
+ public function __construct() {
+ global $wgExtensionMessagesFiles, $wgUser, $wgHooks;
+
+ // Disable the i18n cache and LoadBalancer
+ Language::getLocalisationCache()->disableBackend();
+ LBFactory::disableBackend();
+
+ // Load the installer's i18n file.
+ $wgExtensionMessagesFiles['MediawikiInstaller'] =
+ dirname( __FILE__ ) . '/Installer.i18n.php';
+
+ // Having a user with id = 0 safeguards us from DB access via User::loadOptions().
+ $wgUser = User::newFromId( 0 );
+
+ $this->settings = $this->internalDefaults;
+
+ foreach ( $this->defaultVarNames as $var ) {
+ $this->settings[$var] = $GLOBALS[$var];
+ }
+
+ foreach ( self::getDBTypes() as $type ) {
+ $installer = $this->getDBInstaller( $type );
+
+ if ( !$installer->isCompiled() ) {
+ continue;
+ }
+
+ $defaults = $installer->getGlobalDefaults();
+
+ foreach ( $installer->getGlobalNames() as $var ) {
+ if ( isset( $defaults[$var] ) ) {
+ $this->settings[$var] = $defaults[$var];
+ } else {
+ $this->settings[$var] = $GLOBALS[$var];
+ }
+ }
+ }
+
+ $this->parserTitle = Title::newFromText( 'Installer' );
+ $this->parserOptions = new ParserOptions; // language will be wrong :(
+ $this->parserOptions->setEditSection( false );
+ }
+
+ /**
+ * Get a list of known DB types.
+ */
+ public static function getDBTypes() {
+ return self::$dbTypes;
+ }
+
+ /**
+ * Do initial checks of the PHP environment. Set variables according to
+ * the observed environment.
+ *
+ * It's possible that this may be called under the CLI SAPI, not the SAPI
+ * that the wiki will primarily run under. In that case, the subclass should
+ * initialise variables such as wgScriptPath, before calling this function.
+ *
+ * Under the web subclass, it can already be assumed that PHP 5+ is in use
+ * and that sessions are working.
+ *
+ * @return Status
+ */
+ public function doEnvironmentChecks() {
+ $phpVersion = phpversion();
+ if( version_compare( $phpVersion, self::MINIMUM_PHP_VERSION, '>=' ) ) {
+ $this->showMessage( 'config-env-php', $phpVersion );
+ $good = true;
+ } else {
+ $this->showMessage( 'config-env-php-toolow', $phpVersion, self::MINIMUM_PHP_VERSION );
+ $good = false;
+ }
+
+ if( $good ) {
+ foreach ( $this->envChecks as $check ) {
+ $status = $this->$check();
+ if ( $status === false ) {
+ $good = false;
+ }
+ }
+ }
+
+ $this->setVar( '_Environment', $good );
+
+ return $good ? Status::newGood() : Status::newFatal( 'config-env-bad' );
+ }
+
+ /**
+ * Set a MW configuration variable, or internal installer configuration variable.
+ *
+ * @param $name String
+ * @param $value Mixed
+ */
+ public function setVar( $name, $value ) {
+ $this->settings[$name] = $value;
+ }
+
+ /**
+ * Get an MW configuration variable, or internal installer configuration variable.
+ * The defaults come from $GLOBALS (ultimately DefaultSettings.php).
+ * Installer variables are typically prefixed by an underscore.
+ *
+ * @param $name String
+ * @param $default Mixed
+ *
+ * @return mixed
+ */
+ public function getVar( $name, $default = null ) {
+ if ( !isset( $this->settings[$name] ) ) {
+ return $default;
+ } else {
+ return $this->settings[$name];
+ }
+ }
+
+ /**
+ * Get an instance of DatabaseInstaller for the specified DB type.
+ *
+ * @param $type Mixed: DB installer for which is needed, false to use default.
+ *
+ * @return DatabaseInstaller
+ */
+ public function getDBInstaller( $type = false ) {
+ if ( !$type ) {
+ $type = $this->getVar( 'wgDBtype' );
+ }
+
+ $type = strtolower( $type );
+
+ if ( !isset( $this->dbInstallers[$type] ) ) {
+ $class = ucfirst( $type ). 'Installer';
+ $this->dbInstallers[$type] = new $class( $this );
+ }
+
+ return $this->dbInstallers[$type];
+ }
+
+ /**
+ * Determine if LocalSettings.php exists. If it does, return its variables,
+ * merged with those from AdminSettings.php, as an array.
+ *
+ * @return Array
+ */
+ public static function getExistingLocalSettings() {
+ global $IP;
+
+ wfSuppressWarnings();
+ $_lsExists = file_exists( "$IP/LocalSettings.php" );
+ wfRestoreWarnings();
+
+ if( !$_lsExists ) {
+ return false;
+ }
+ unset($_lsExists);
+
+ require( "$IP/includes/DefaultSettings.php" );
+ require( "$IP/LocalSettings.php" );
+ if ( file_exists( "$IP/AdminSettings.php" ) ) {
+ require( "$IP/AdminSettings.php" );
+ }
+ return get_defined_vars();
+ }
+
+ /**
+ * Get a fake password for sending back to the user in HTML.
+ * This is a security mechanism to avoid compromise of the password in the
+ * event of session ID compromise.
+ *
+ * @param $realPassword String
+ *
+ * @return string
+ */
+ public function getFakePassword( $realPassword ) {
+ return str_repeat( '*', strlen( $realPassword ) );
+ }
+
+ /**
+ * Set a variable which stores a password, except if the new value is a
+ * fake password in which case leave it as it is.
+ *
+ * @param $name String
+ * @param $value Mixed
+ */
+ public function setPassword( $name, $value ) {
+ if ( !preg_match( '/^\*+$/', $value ) ) {
+ $this->setVar( $name, $value );
+ }
+ }
+
+ /**
+ * On POSIX systems return the primary group of the webserver we're running under.
+ * On other systems just returns null.
+ *
+ * This is used to advice the user that he should chgrp his mw-config/data/images directory as the
+ * webserver user before he can install.
+ *
+ * Public because SqliteInstaller needs it, and doesn't subclass Installer.
+ *
+ * @return mixed
+ */
+ public static function maybeGetWebserverPrimaryGroup() {
+ if ( !function_exists( 'posix_getegid' ) || !function_exists( 'posix_getpwuid' ) ) {
+ # I don't know this, this isn't UNIX.
+ return null;
+ }
+
+ # posix_getegid() *not* getmygid() because we want the group of the webserver,
+ # not whoever owns the current script.
+ $gid = posix_getegid();
+ $getpwuid = posix_getpwuid( $gid );
+ $group = $getpwuid['name'];
+
+ return $group;
+ }
+
+ /**
+ * Convert wikitext $text to HTML.
+ *
+ * This is potentially error prone since many parser features require a complete
+ * installed MW database. The solution is to just not use those features when you
+ * write your messages. This appears to work well enough. Basic formatting and
+ * external links work just fine.
+ *
+ * But in case a translator decides to throw in a #ifexist or internal link or
+ * whatever, this function is guarded to catch the attempted DB access and to present
+ * some fallback text.
+ *
+ * @param $text String
+ * @param $lineStart Boolean
+ * @return String
+ */
+ public function parse( $text, $lineStart = false ) {
+ global $wgParser;
+
+ try {
+ $out = $wgParser->parse( $text, $this->parserTitle, $this->parserOptions, $lineStart );
+ $html = $out->getText();
+ } catch ( DBAccessError $e ) {
+ $html = '<!--DB access attempted during parse--> ' . htmlspecialchars( $text );
+
+ if ( !empty( $this->debug ) ) {
+ $html .= "<!--\n" . $e->getTraceAsString() . "\n-->";
+ }
+ }
+
+ return $html;
+ }
+
+ public function getParserOptions() {
+ return $this->parserOptions;
+ }
+
+ public function disableLinkPopups() {
+ $this->parserOptions->setExternalLinkTarget( false );
+ }
+
+ public function restoreLinkPopups() {
+ global $wgExternalLinkTarget;
+ $this->parserOptions->setExternalLinkTarget( $wgExternalLinkTarget );
+ }
+
+ /**
+ * Install step which adds a row to the site_stats table with appropriate
+ * initial values.
+ */
+ public function populateSiteStats( DatabaseInstaller $installer ) {
+ $status = $installer->getConnection();
+ if ( !$status->isOK() ) {
+ return $status;
+ }
+ $status->value->insert( 'site_stats', array(
+ 'ss_row_id' => 1,
+ 'ss_total_views' => 0,
+ 'ss_total_edits' => 0,
+ 'ss_good_articles' => 0,
+ 'ss_total_pages' => 0,
+ 'ss_users' => 0,
+ 'ss_admins' => 0,
+ 'ss_images' => 0 ),
+ __METHOD__, 'IGNORE' );
+ return Status::newGood();
+ }
+
+ /**
+ * Exports all wg* variables stored by the installer into global scope.
+ */
+ public function exportVars() {
+ foreach ( $this->settings as $name => $value ) {
+ if ( substr( $name, 0, 2 ) == 'wg' ) {
+ $GLOBALS[$name] = $value;
+ }
+ }
+ }
+
+ /**
+ * Environment check for DB types.
+ */
+ protected function envCheckDB() {
+ global $wgLang;
+
+ $compiledDBs = array();
+ $allNames = array();
+
+ foreach ( self::getDBTypes() as $name ) {
+ $db = $this->getDBInstaller( $name );
+ $readableName = wfMsg( 'config-type-' . $name );
+
+ if ( $db->isCompiled() ) {
+ $compiledDBs[] = $name;
+ }
+ $allNames[] = $readableName;
+ }
+
+ $this->setVar( '_CompiledDBs', $compiledDBs );
+
+ if ( !$compiledDBs ) {
+ $this->showError( 'config-no-db', $wgLang->commaList( $allNames ) );
+ // FIXME: this only works for the web installer!
+ return false;
+ }
+
+ // Check for FTS3 full-text search module
+ $sqlite = $this->getDBInstaller( 'sqlite' );
+ if ( $sqlite->isCompiled() ) {
+ if( DatabaseSqlite::getFulltextSearchModule() != 'FTS3' ) {
+ $this->showMessage( 'config-no-fts3' );
+ }
+ }
+ }
+
+ /**
+ * Environment check for register_globals.
+ */
+ protected function envCheckRegisterGlobals() {
+ if( wfIniGetBool( "magic_quotes_runtime" ) ) {
+ $this->showMessage( 'config-register-globals' );
+ }
+ }
+
+ /**
+ * Some versions of libxml+PHP break < and > encoding horribly
+ */
+ protected function envCheckBrokenXML() {
+ $test = new PhpXmlBugTester();
+ if ( !$test->ok ) {
+ $this->showError( 'config-brokenlibxml' );
+ return false;
+ }
+ }
+
+ /**
+ * Test PHP (probably 5.3.1, but it could regress again) to make sure that
+ * reference parameters to __call() are not converted to null
+ */
+ protected function envCheckPHP531() {
+ $test = new PhpRefCallBugTester;
+ $test->execute();
+ if ( !$test->ok ) {
+ $this->showError( 'config-using531', phpversion() );
+ return false;
+ }
+ }
+
+ /**
+ * Environment check for magic_quotes_runtime.
+ */
+ protected function envCheckMagicQuotes() {
+ if( wfIniGetBool( "magic_quotes_runtime" ) ) {
+ $this->showError( 'config-magic-quotes-runtime' );
+ return false;
+ }
+ }
+
+ /**
+ * Environment check for magic_quotes_sybase.
+ */
+ protected function envCheckMagicSybase() {
+ if ( wfIniGetBool( 'magic_quotes_sybase' ) ) {
+ $this->showError( 'config-magic-quotes-sybase' );
+ return false;
+ }
+ }
+
+ /**
+ * Environment check for mbstring.func_overload.
+ */
+ protected function envCheckMbstring() {
+ if ( wfIniGetBool( 'mbstring.func_overload' ) ) {
+ $this->showError( 'config-mbstring' );
+ return false;
+ }
+ }
+
+ /**
+ * Environment check for zend.ze1_compatibility_mode.
+ */
+ protected function envCheckZE1() {
+ if ( wfIniGetBool( 'zend.ze1_compatibility_mode' ) ) {
+ $this->showError( 'config-ze1' );
+ return false;
+ }
+ }
+
+ /**
+ * Environment check for safe_mode.
+ */
+ protected function envCheckSafeMode() {
+ if ( wfIniGetBool( 'safe_mode' ) ) {
+ $this->setVar( '_SafeMode', true );
+ $this->showMessage( 'config-safe-mode' );
+ }
+ }
+
+ /**
+ * Environment check for the XML module.
+ */
+ protected function envCheckXML() {
+ if ( !function_exists( "utf8_encode" ) ) {
+ $this->showError( 'config-xml-bad' );
+ return false;
+ }
+ }
+
+ /**
+ * Environment check for the PCRE module.
+ */
+ protected function envCheckPCRE() {
+ if ( !function_exists( 'preg_match' ) ) {
+ $this->showError( 'config-pcre' );
+ return false;
+ }
+ wfSuppressWarnings();
+ $regexd = preg_replace( '/[\x{0430}-\x{04FF}]/iu', '', '-АБВГД-' );
+ wfRestoreWarnings();
+ if ( $regexd != '--' ) {
+ $this->showError( 'config-pcre-no-utf8' );
+ return false;
+ }
+ }
+
+ /**
+ * Environment check for available memory.
+ */
+ protected function envCheckMemory() {
+ $limit = ini_get( 'memory_limit' );
+
+ if ( !$limit || $limit == -1 ) {
+ return true;
+ }
+
+ $n = wfShorthandToInteger( $limit );
+
+ if( $n < $this->minMemorySize * 1024 * 1024 ) {
+ $newLimit = "{$this->minMemorySize}M";
+
+ if( ini_set( "memory_limit", $newLimit ) === false ) {
+ $this->showMessage( 'config-memory-bad', $limit );
+ } else {
+ $this->showMessage( 'config-memory-raised', $limit, $newLimit );
+ $this->setVar( '_RaiseMemory', true );
+ }
+ } else {
+ return true;
+ }
+ }
+
+ /**
+ * Environment check for compiled object cache types.
+ */
+ protected function envCheckCache() {
+ $caches = array();
+ foreach ( $this->objectCaches as $name => $function ) {
+ if ( function_exists( $function ) ) {
+ $caches[$name] = true;
+ }
+ }
+
+ if ( !$caches ) {
+ $this->showMessage( 'config-no-cache' );
+ }
+
+ $this->setVar( '_Caches', $caches );
+ }
+
+ /**
+ * Search for GNU diff3.
+ */
+ protected function envCheckDiff3() {
+ $names = array( "gdiff3", "diff3", "diff3.exe" );
+ $versionInfo = array( '$1 --version 2>&1', 'GNU diffutils' );
+
+ $diff3 = self::locateExecutableInDefaultPaths( $names, $versionInfo );
+
+ if ( $diff3 ) {
+ $this->setVar( 'wgDiff3', $diff3 );
+ } else {
+ $this->setVar( 'wgDiff3', false );
+ $this->showMessage( 'config-diff3-bad' );
+ }
+ }
+
+ /**
+ * Environment check for ImageMagick and GD.
+ */
+ protected function envCheckGraphics() {
+ $names = array( wfIsWindows() ? 'convert.exe' : 'convert' );
+ $convert = self::locateExecutableInDefaultPaths( $names, array( '$1 -version', 'ImageMagick' ) );
+
+ $this->setVar( 'wgImageMagickConvertCommand', '' );
+ if ( $convert ) {
+ $this->setVar( 'wgImageMagickConvertCommand', $convert );
+ $this->showMessage( 'config-imagemagick', $convert );
+ return true;
+ } elseif ( function_exists( 'imagejpeg' ) ) {
+ $this->showMessage( 'config-gd' );
+ return true;
+ } else {
+ $this->showMessage( 'config-no-scaling' );
+ }
+ }
+
+ /**
+ * Environment check for setting $IP and $wgScriptPath.
+ */
+ protected function envCheckPath() {
+ global $IP;
+ $IP = dirname( dirname( dirname( __FILE__ ) ) );
+
+ $this->setVar( 'IP', $IP );
+
+ // PHP_SELF isn't available sometimes, such as when PHP is CGI but
+ // cgi.fix_pathinfo is disabled. In that case, fall back to SCRIPT_NAME
+ // to get the path to the current script... hopefully it's reliable. SIGH
+ if ( !empty( $_SERVER['PHP_SELF'] ) ) {
+ $path = $_SERVER['PHP_SELF'];
+ } elseif ( !empty( $_SERVER['SCRIPT_NAME'] ) ) {
+ $path = $_SERVER['SCRIPT_NAME'];
+ } elseif ( $this->getVar( 'wgScriptPath' ) ) {
+ // Some kind soul has set it for us already (e.g. debconf)
+ return true;
+ } else {
+ $this->showError( 'config-no-uri' );
+ return false;
+ }
+
+ $uri = preg_replace( '{^(.*)/(mw-)?config.*$}', '$1', $path );
+ $this->setVar( 'wgScriptPath', $uri );
+ }
+
+ /**
+ * Environment check for setting the preferred PHP file extension.
+ */
+ protected function envCheckExtension() {
+ // FIXME: detect this properly
+ if ( defined( 'MW_INSTALL_PHP5_EXT' ) ) {
+ $ext = 'php5';
+ } else {
+ $ext = 'php';
+ }
+ $this->setVar( 'wgScriptExtension', ".$ext" );
+ }
+
+ /**
+ * TODO: document
+ */
+ protected function envCheckShellLocale() {
+ $os = php_uname( 's' );
+ $supported = array( 'Linux', 'SunOS', 'HP-UX', 'Darwin' ); # Tested these
+
+ if ( !in_array( $os, $supported ) ) {
+ return true;
+ }
+
+ # Get a list of available locales.
+ $ret = false;
+ $lines = wfShellExec( '/usr/bin/locale -a', $ret );
+
+ if ( $ret ) {
+ return true;
+ }
+
+ $lines = wfArrayMap( 'trim', explode( "\n", $lines ) );
+ $candidatesByLocale = array();
+ $candidatesByLang = array();
+
+ foreach ( $lines as $line ) {
+ if ( $line === '' ) {
+ continue;
+ }
+
+ if ( !preg_match( '/^([a-zA-Z]+)(_[a-zA-Z]+|)\.(utf8|UTF-8)(@[a-zA-Z_]*|)$/i', $line, $m ) ) {
+ continue;
+ }
+
+ list( $all, $lang, $territory, $charset, $modifier ) = $m;
+
+ $candidatesByLocale[$m[0]] = $m;
+ $candidatesByLang[$lang][] = $m;
+ }
+
+ # Try the current value of LANG.
+ if ( isset( $candidatesByLocale[ getenv( 'LANG' ) ] ) ) {
+ $this->setVar( 'wgShellLocale', getenv( 'LANG' ) );
+ return true;
+ }
+
+ # Try the most common ones.
+ $commonLocales = array( 'en_US.UTF-8', 'en_US.utf8', 'de_DE.UTF-8', 'de_DE.utf8' );
+ foreach ( $commonLocales as $commonLocale ) {
+ if ( isset( $candidatesByLocale[$commonLocale] ) ) {
+ $this->setVar( 'wgShellLocale', $commonLocale );
+ return true;
+ }
+ }
+
+ # Is there an available locale in the Wiki's language?
+ $wikiLang = $this->getVar( 'wgLanguageCode' );
+
+ if ( isset( $candidatesByLang[$wikiLang] ) ) {
+ $m = reset( $candidatesByLang[$wikiLang] );
+ $this->setVar( 'wgShellLocale', $m[0] );
+ return true;
+ }
+
+ # Are there any at all?
+ if ( count( $candidatesByLocale ) ) {
+ $m = reset( $candidatesByLocale );
+ $this->setVar( 'wgShellLocale', $m[0] );
+ return true;
+ }
+
+ # Give up.
+ return true;
+ }
+
+ /**
+ * TODO: document
+ */
+ protected function envCheckUploadsDirectory() {
+ global $IP, $wgServer;
+
+ $dir = $IP . '/images/';
+ $url = $wgServer . $this->getVar( 'wgScriptPath' ) . '/images/';
+ $safe = !$this->dirIsExecutable( $dir, $url );
+
+ if ( $safe ) {
+ return true;
+ } else {
+ $this->showMessage( 'config-uploads-not-safe', $dir );
+ }
+ }
+
+ /**
+ * Checks if suhosin.get.max_value_length is set, and if so, sets
+ * $wgResourceLoaderMaxQueryLength to that value in the generated
+ * LocalSettings file
+ */
+ protected function envCheckSuhosinMaxValueLength() {
+ $maxValueLength = ini_get( 'suhosin.get.max_value_length' );
+ if ( $maxValueLength > 0 ) {
+ $this->showMessage( 'config-suhosin-max-value-length', $maxValueLength );
+ } else {
+ $maxValueLength = -1;
+ }
+ $this->setVar( 'wgResourceLoaderMaxQueryLength', $maxValueLength );
+ }
+
+ /**
+ * Convert a hex string representing a Unicode code point to that code point.
+ * @param $c String
+ * @return string
+ */
+ protected function unicodeChar( $c ) {
+ $c = hexdec($c);
+ if ($c <= 0x7F) {
+ return chr($c);
+ } else if ($c <= 0x7FF) {
+ return chr(0xC0 | $c >> 6) . chr(0x80 | $c & 0x3F);
+ } else if ($c <= 0xFFFF) {
+ return chr(0xE0 | $c >> 12) . chr(0x80 | $c >> 6 & 0x3F)
+ . chr(0x80 | $c & 0x3F);
+ } else if ($c <= 0x10FFFF) {
+ return chr(0xF0 | $c >> 18) . chr(0x80 | $c >> 12 & 0x3F)
+ . chr(0x80 | $c >> 6 & 0x3F)
+ . chr(0x80 | $c & 0x3F);
+ } else {
+ return false;
+ }
+ }
+
+
+ /**
+ * Check the libicu version
+ */
+ protected function envCheckLibicu() {
+ $utf8 = function_exists( 'utf8_normalize' );
+ $intl = function_exists( 'normalizer_normalize' );
+
+ /**
+ * This needs to be updated something that the latest libicu
+ * will properly normalize. This normalization was found at
+ * http://www.unicode.org/versions/Unicode5.2.0/#Character_Additions
+ * Note that we use the hex representation to create the code
+ * points in order to avoid any Unicode-destroying during transit.
+ */
+ $not_normal_c = $this->unicodeChar("FA6C");
+ $normal_c = $this->unicodeChar("242EE");
+
+ $useNormalizer = 'php';
+ $needsUpdate = false;
+
+ /**
+ * We're going to prefer the pecl extension here unless
+ * utf8_normalize is more up to date.
+ */
+ if( $utf8 ) {
+ $useNormalizer = 'utf8';
+ $utf8 = utf8_normalize( $not_normal_c, UNORM_NFC );
+ if ( $utf8 !== $normal_c ) $needsUpdate = true;
+ }
+ if( $intl ) {
+ $useNormalizer = 'intl';
+ $intl = normalizer_normalize( $not_normal_c, Normalizer::FORM_C );
+ if ( $intl !== $normal_c ) $needsUpdate = true;
+ }
+
+ // Uses messages 'config-unicode-using-php', 'config-unicode-using-utf8', 'config-unicode-using-intl'
+ if( $useNormalizer === 'php' ) {
+ $this->showMessage( 'config-unicode-pure-php-warning' );
+ } else {
+ $this->showMessage( 'config-unicode-using-' . $useNormalizer );
+ if( $needsUpdate ) {
+ $this->showMessage( 'config-unicode-update-warning' );
+ }
+ }
+ }
+
+ /**
+ * Get an array of likely places we can find executables. Check a bunch
+ * of known Unix-like defaults, as well as the PATH environment variable
+ * (which should maybe make it work for Windows?)
+ *
+ * @return Array
+ */
+ protected static function getPossibleBinPaths() {
+ return array_merge(
+ array( '/usr/bin', '/usr/local/bin', '/opt/csw/bin',
+ '/usr/gnu/bin', '/usr/sfw/bin', '/sw/bin', '/opt/local/bin' ),
+ explode( PATH_SEPARATOR, getenv( 'PATH' ) )
+ );
+ }
+
+ /**
+ * Search a path for any of the given executable names. Returns the
+ * executable name if found. Also checks the version string returned
+ * by each executable.
+ *
+ * Used only by environment checks.
+ *
+ * @param $path String: path to search
+ * @param $names Array of executable names
+ * @param $versionInfo Boolean false or array with two members:
+ * 0 => Command to run for version check, with $1 for the full executable name
+ * 1 => String to compare the output with
+ *
+ * If $versionInfo is not false, only executables with a version
+ * matching $versionInfo[1] will be returned.
+ */
+ public static function locateExecutable( $path, $names, $versionInfo = false ) {
+ if ( !is_array( $names ) ) {
+ $names = array( $names );
+ }
+
+ foreach ( $names as $name ) {
+ $command = $path . DIRECTORY_SEPARATOR . $name;
+
+ wfSuppressWarnings();
+ $file_exists = file_exists( $command );
+ wfRestoreWarnings();
+
+ if ( $file_exists ) {
+ if ( !$versionInfo ) {
+ return $command;
+ }
+
+ $file = str_replace( '$1', wfEscapeShellArg( $command ), $versionInfo[0] );
+ if ( strstr( wfShellExec( $file ), $versionInfo[1] ) !== false ) {
+ return $command;
+ }
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Same as locateExecutable(), but checks in getPossibleBinPaths() by default
+ * @see locateExecutable()
+ */
+ public static function locateExecutableInDefaultPaths( $names, $versionInfo = false ) {
+ foreach( self::getPossibleBinPaths() as $path ) {
+ $exe = self::locateExecutable( $path, $names, $versionInfo );
+ if( $exe !== false ) {
+ return $exe;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Checks if scripts located in the given directory can be executed via the given URL.
+ *
+ * Used only by environment checks.
+ */
+ public function dirIsExecutable( $dir, $url ) {
+ $scriptTypes = array(
+ 'php' => array(
+ "<?php echo 'ex' . 'ec';",
+ "#!/var/env php5\n<?php echo 'ex' . 'ec';",
+ ),
+ );
+
+ // it would be good to check other popular languages here, but it'll be slow.
+
+ wfSuppressWarnings();
+
+ foreach ( $scriptTypes as $ext => $contents ) {
+ foreach ( $contents as $source ) {
+ $file = 'exectest.' . $ext;
+
+ if ( !file_put_contents( $dir . $file, $source ) ) {
+ break;
+ }
+
+ try {
+ $text = Http::get( $url . $file, array( 'timeout' => 3 ) );
+ }
+ catch( MWException $e ) {
+ // Http::get throws with allow_url_fopen = false and no curl extension.
+ $text = null;
+ }
+ unlink( $dir . $file );
+
+ if ( $text == 'exec' ) {
+ wfRestoreWarnings();
+ return $ext;
+ }
+ }
+ }
+
+ wfRestoreWarnings();
+
+ return false;
+ }
+
+ /**
+ * ParserOptions are constructed before we determined the language, so fix it
+ */
+ public function setParserLanguage( $lang ) {
+ $this->parserOptions->setTargetLanguage( $lang );
+ $this->parserOptions->setUserLang( $lang->getCode() );
+ }
+
+ /**
+ * Overridden by WebInstaller to provide lastPage parameters.
+ */
+ protected function getDocUrl( $page ) {
+ return "{$_SERVER['PHP_SELF']}?page=" . urlencode( $page );
+ }
+
+ /**
+ * Finds extensions that follow the format /extensions/Name/Name.php,
+ * and returns an array containing the value for 'Name' for each found extension.
+ *
+ * @return array
+ */
+ public function findExtensions() {
+ if( $this->getVar( 'IP' ) === null ) {
+ return false;
+ }
+
+ $exts = array();
+ $dir = $this->getVar( 'IP' ) . '/extensions';
+ $dh = opendir( $dir );
+
+ while ( ( $file = readdir( $dh ) ) !== false ) {
+ if( file_exists( "$dir/$file/$file.php" ) ) {
+ $exts[] = $file;
+ }
+ }
+
+ return $exts;
+ }
+
+ /**
+ * Installs the auto-detected extensions.
+ *
+ * @return Status
+ */
+ protected function includeExtensions() {
+ global $IP;
+ $exts = $this->getVar( '_Extensions' );
+ $IP = $this->getVar( 'IP' );
+
+ /**
+ * We need to include DefaultSettings before including extensions to avoid
+ * warnings about unset variables. However, the only thing we really
+ * want here is $wgHooks['LoadExtensionSchemaUpdates']. This won't work
+ * if the extension has hidden hook registration in $wgExtensionFunctions,
+ * but we're not opening that can of worms
+ * @see https://bugzilla.wikimedia.org/show_bug.cgi?id=26857
+ */
+ global $wgAutoloadClasses;
+ require( "$IP/includes/DefaultSettings.php" );
+
+ foreach( $exts as $e ) {
+ require_once( $IP . '/extensions' . "/$e/$e.php" );
+ }
+
+ $hooksWeWant = isset( $wgHooks['LoadExtensionSchemaUpdates'] ) ?
+ $wgHooks['LoadExtensionSchemaUpdates'] : array();
+
+ // Unset everyone else's hooks. Lord knows what someone might be doing
+ // in ParserFirstCallInit (see bug 27171)
+ $GLOBALS['wgHooks'] = array( 'LoadExtensionSchemaUpdates' => $hooksWeWant );
+
+ return Status::newGood();
+ }
+
+ /**
+ * Get an array of install steps. Should always be in the format of
+ * array(
+ * 'name' => 'someuniquename',
+ * 'callback' => array( $obj, 'method' ),
+ * )
+ * There must be a config-install-$name message defined per step, which will
+ * be shown on install.
+ *
+ * @param $installer DatabaseInstaller so we can make callbacks
+ * @return array
+ */
+ protected function getInstallSteps( DatabaseInstaller $installer ) {
+ $coreInstallSteps = array(
+ array( 'name' => 'database', 'callback' => array( $installer, 'setupDatabase' ) ),
+ array( 'name' => 'tables', 'callback' => array( $installer, 'createTables' ) ),
+ array( 'name' => 'interwiki', 'callback' => array( $installer, 'populateInterwikiTable' ) ),
+ array( 'name' => 'stats', 'callback' => array( $this, 'populateSiteStats' ) ),
+ array( 'name' => 'keys', 'callback' => array( $this, 'generateKeys' ) ),
+ array( 'name' => 'sysop', 'callback' => array( $this, 'createSysop' ) ),
+ array( 'name' => 'mainpage', 'callback' => array( $this, 'createMainpage' ) ),
+ );
+
+ // Build the array of install steps starting from the core install list,
+ // then adding any callbacks that wanted to attach after a given step
+ foreach( $coreInstallSteps as $step ) {
+ $this->installSteps[] = $step;
+ if( isset( $this->extraInstallSteps[ $step['name'] ] ) ) {
+ $this->installSteps = array_merge(
+ $this->installSteps,
+ $this->extraInstallSteps[ $step['name'] ]
+ );
+ }
+ }
+
+ // Prepend any steps that want to be at the beginning
+ if( isset( $this->extraInstallSteps['BEGINNING'] ) ) {
+ $this->installSteps = array_merge(
+ $this->extraInstallSteps['BEGINNING'],
+ $this->installSteps
+ );
+ }
+
+ // Extensions should always go first, chance to tie into hooks and such
+ if( count( $this->getVar( '_Extensions' ) ) ) {
+ array_unshift( $this->installSteps,
+ array( 'name' => 'extensions', 'callback' => array( $this, 'includeExtensions' ) )
+ );
+ $this->installSteps[] = array(
+ 'name' => 'extension-tables',
+ 'callback' => array( $installer, 'createExtensionTables' )
+ );
+ }
+ return $this->installSteps;
+ }
+
+ /**
+ * Actually perform the installation.
+ *
+ * @param $startCB Array A callback array for the beginning of each step
+ * @param $endCB Array A callback array for the end of each step
+ *
+ * @return Array of Status objects
+ */
+ public function performInstallation( $startCB, $endCB ) {
+ $installResults = array();
+ $installer = $this->getDBInstaller();
+ $installer->preInstall();
+ $steps = $this->getInstallSteps( $installer );
+ foreach( $steps as $stepObj ) {
+ $name = $stepObj['name'];
+ call_user_func_array( $startCB, array( $name ) );
+
+ // Perform the callback step
+ $status = call_user_func( $stepObj['callback'], $installer );
+
+ // Output and save the results
+ call_user_func( $endCB, $name, $status );
+ $installResults[$name] = $status;
+
+ // If we've hit some sort of fatal, we need to bail.
+ // Callback already had a chance to do output above.
+ if( !$status->isOk() ) {
+ break;
+ }
+ }
+ if( $status->isOk() ) {
+ $this->setVar( '_InstallDone', true );
+ }
+ return $installResults;
+ }
+
+ /**
+ * Generate $wgSecretKey. Will warn if we had to use mt_rand() instead of
+ * /dev/urandom
+ *
+ * @return Status
+ */
+ public function generateKeys() {
+ $keys = array( 'wgSecretKey' => 64 );
+ if ( strval( $this->getVar( 'wgUpgradeKey' ) ) === '' ) {
+ $keys['wgUpgradeKey'] = 16;
+ }
+ return $this->doGenerateKeys( $keys );
+ }
+
+ /**
+ * Generate a secret value for variables using either
+ * /dev/urandom or mt_rand(). Produce a warning in the later case.
+ *
+ * @param $keys Array
+ * @return Status
+ */
+ protected function doGenerateKeys( $keys ) {
+ $status = Status::newGood();
+
+ wfSuppressWarnings();
+ $file = fopen( "/dev/urandom", "r" );
+ wfRestoreWarnings();
+
+ foreach ( $keys as $name => $length ) {
+ if ( $file ) {
+ $secretKey = bin2hex( fread( $file, $length / 2 ) );
+ } else {
+ $secretKey = '';
+
+ for ( $i = 0; $i < $length / 8; $i++ ) {
+ $secretKey .= dechex( mt_rand( 0, 0x7fffffff ) );
+ }
+ }
+
+ $this->setVar( $name, $secretKey );
+ }
+
+ if ( $file ) {
+ fclose( $file );
+ } else {
+ $names = array_keys ( $keys );
+ $names = preg_replace( '/^(.*)$/', '\$$1', $names );
+ global $wgLang;
+ $status->warning( 'config-insecure-keys', $wgLang->listToText( $names ), count( $names ) );
+ }
+
+ return $status;
+ }
+
+ /**
+ * Create the first user account, grant it sysop and bureaucrat rights
+ *
+ * @return Status
+ */
+ protected function createSysop() {
+ $name = $this->getVar( '_AdminName' );
+ $user = User::newFromName( $name );
+
+ if ( !$user ) {
+ // We should've validated this earlier anyway!
+ return Status::newFatal( 'config-admin-error-user', $name );
+ }
+
+ if ( $user->idForName() == 0 ) {
+ $user->addToDatabase();
+
+ try {
+ $user->setPassword( $this->getVar( '_AdminPassword' ) );
+ } catch( PasswordError $pwe ) {
+ return Status::newFatal( 'config-admin-error-password', $name, $pwe->getMessage() );
+ }
+
+ $user->addGroup( 'sysop' );
+ $user->addGroup( 'bureaucrat' );
+ if( $this->getVar( '_AdminEmail' ) ) {
+ $user->setEmail( $this->getVar( '_AdminEmail' ) );
+ }
+ $user->saveSettings();
+
+ // Update user count
+ $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
+ $ssUpdate->doUpdate();
+ }
+ $status = Status::newGood();
+
+ if( $this->getVar( '_Subscribe' ) && $this->getVar( '_AdminEmail' ) ) {
+ $this->subscribeToMediaWikiAnnounce( $status );
+ }
+
+ return $status;
+ }
+
+ private function subscribeToMediaWikiAnnounce( Status $s ) {
+ $params = array(
+ 'email' => $this->getVar( '_AdminEmail' ),
+ 'language' => 'en',
+ 'digest' => 0
+ );
+
+ // Mailman doesn't support as many languages as we do, so check to make
+ // sure their selected language is available
+ $myLang = $this->getVar( '_UserLang' );
+ if( in_array( $myLang, $this->mediaWikiAnnounceLanguages ) ) {
+ $myLang = $myLang == 'pt-br' ? 'pt_BR' : $myLang; // rewrite to Mailman's pt_BR
+ $params['language'] = $myLang;
+ }
+
+ $res = MWHttpRequest::factory( $this->mediaWikiAnnounceUrl,
+ array( 'method' => 'POST', 'postData' => $params ) )->execute();
+ if( !$res->isOK() ) {
+ $s->warning( 'config-install-subscribe-fail', $res->getMessage() );
+ }
+ }
+
+ /**
+ * Insert Main Page with default content.
+ *
+ * @return Status
+ */
+ protected function createMainpage( DatabaseInstaller $installer ) {
+ $status = Status::newGood();
+ try {
+ $article = new Article( Title::newMainPage() );
+ $article->doEdit( wfMsgForContent( 'mainpagetext' ) . "\n\n" .
+ wfMsgForContent( 'mainpagedocfooter' ),
+ '',
+ EDIT_NEW,
+ false,
+ User::newFromName( 'MediaWiki default' ) );
+ } catch (MWException $e) {
+ //using raw, because $wgShowExceptionDetails can not be set yet
+ $status->fatal( 'config-install-mainpage-failed', $e->getMessage() );
+ }
+
+ return $status;
+ }
+
+ /**
+ * Override the necessary bits of the config to run an installation.
+ */
+ public static function overrideConfig() {
+ define( 'MW_NO_SESSION', 1 );
+
+ // Don't access the database
+ $GLOBALS['wgUseDatabaseMessages'] = false;
+ // Debug-friendly
+ $GLOBALS['wgShowExceptionDetails'] = true;
+ // Don't break forms
+ $GLOBALS['wgExternalLinkTarget'] = '_blank';
+
+ // Extended debugging
+ $GLOBALS['wgShowSQLErrors'] = true;
+ $GLOBALS['wgShowDBErrorBacktrace'] = true;
+
+ // Allow multiple ob_flush() calls
+ $GLOBALS['wgDisableOutputCompression'] = true;
+
+ // Use a sensible cookie prefix (not my_wiki)
+ $GLOBALS['wgCookiePrefix'] = 'mw_installer';
+
+ // Some of the environment checks make shell requests, remove limits
+ $GLOBALS['wgMaxShellMemory'] = 0;
+ }
+
+ /**
+ * Add an installation step following the given step.
+ *
+ * @param $callback Array A valid installation callback array, in this form:
+ * array( 'name' => 'some-unique-name', 'callback' => array( $obj, 'function' ) );
+ * @param $findStep String the step to find. Omit to put the step at the beginning
+ */
+ public function addInstallStep( $callback, $findStep = 'BEGINNING' ) {
+ $this->extraInstallSteps[$findStep][] = $callback;
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff