3 * Base code for MediaWiki installer.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
25 * This documentation group collects source code files with deployment functionality.
27 * @defgroup Deployment Deployment
31 * Base installer class.
33 * This class provides the base for installation and update functionality
34 * for both MediaWiki core and extensions.
39 abstract class Installer
{
41 // This is the absolute minimum PHP version we can support
42 const MINIMUM_PHP_VERSION
= '5.3.2';
50 * Cached DB installer instances, access using getDBInstaller().
54 protected $dbInstallers = array();
57 * Minimum memory size in MB.
61 protected $minMemorySize = 50;
64 * Cached Title, used by parse().
68 protected $parserTitle;
71 * Cached ParserOptions, used by parse().
75 protected $parserOptions;
78 * Known database types. These correspond to the class names <type>Installer,
79 * and are also MediaWiki database types valid for $wgDBtype.
81 * To add a new type, create a <type>Installer class and a Database<type>
82 * class, and add a config-type-<type> message to MessagesEn.php.
86 protected static $dbTypes = array(
95 * A list of environment check methods called by doEnvironmentChecks().
96 * These may output warnings using showMessage(), and/or abort the
97 * installation process by returning false.
101 protected $envChecks = array(
103 'envCheckRegisterGlobals',
106 'envCheckMagicQuotes',
107 'envCheckMagicSybase',
115 'envCheckModSecurity',
121 'envCheckShellLocale',
122 'envCheckUploadsDirectory',
124 'envCheckSuhosinMaxValueLength',
129 * MediaWiki configuration globals that will eventually be passed through
130 * to LocalSettings.php. The names only are given here, the defaults
131 * typically come from DefaultSettings.php.
135 protected $defaultVarNames = array(
147 'wgEmailAuthentication',
150 'wgImageMagickConvertCommand',
156 'wgDeletedDirectory',
161 'wgUseInstantCommons',
164 'wgResourceLoaderMaxQueryLength',
168 * Variables that are stored alongside globals, and are used for any
169 * configuration of the installation process aside from the MediaWiki
170 * configuration. Map of names to defaults.
174 protected $internalDefaults = array(
176 '_Environment' => false,
177 '_CompiledDBs' => array(),
178 '_SafeMode' => false,
179 '_RaiseMemory' => false,
180 '_UpgradeDone' => false,
181 '_InstallDone' => false,
182 '_Caches' => array(),
183 '_InstallPassword' => '',
184 '_SameAccount' => true,
185 '_CreateDBAccount' => false,
186 '_NamespaceType' => 'site-name',
187 '_AdminName' => '', // will be set later, when the user selects language
188 '_AdminPassword' => '',
189 '_AdminPassword2' => '',
191 '_Subscribe' => false,
192 '_SkipOptional' => 'continue',
193 '_RightsProfile' => 'wiki',
194 '_LicenseCode' => 'none',
196 '_Extensions' => array(),
197 '_MemCachedServers' => '',
198 '_UpgradeKeySupplied' => false,
199 '_ExistingDBSettings' => false,
203 * The actual list of installation steps. This will be initialized by getInstallSteps()
207 private $installSteps = array();
210 * Extra steps for installation, for things like DatabaseInstallers to modify
214 protected $extraInstallSteps = array();
217 * Known object cache types and the functions used to test for their existence.
221 protected $objectCaches = array(
222 'xcache' => 'xcache_get',
223 'apc' => 'apc_fetch',
224 'wincache' => 'wincache_ucache_get'
228 * User rights profiles.
232 public $rightsProfiles = array(
235 '*' => array( 'edit' => false )
239 'createaccount' => false,
245 'createaccount' => false,
257 public $licenses = array(
259 'url' => 'http://creativecommons.org/licenses/by/3.0/',
260 'icon' => '{$wgStylePath}/common/images/cc-by.png',
263 'url' => 'http://creativecommons.org/licenses/by-sa/3.0/',
264 'icon' => '{$wgStylePath}/common/images/cc-by-sa.png',
266 'cc-by-nc-sa' => array(
267 'url' => 'http://creativecommons.org/licenses/by-nc-sa/3.0/',
268 'icon' => '{$wgStylePath}/common/images/cc-by-nc-sa.png',
271 'url' => 'https://creativecommons.org/publicdomain/zero/1.0/',
272 'icon' => '{$wgStylePath}/common/images/cc-0.png',
276 'icon' => '{$wgStylePath}/common/images/public-domain.png',
279 'url' => 'http://www.gnu.org/copyleft/fdl.html',
280 'icon' => '{$wgStylePath}/common/images/gnu-fdl.png',
287 'cc-choose' => array(
288 // Details will be filled in by the selector.
296 * URL to mediawiki-announce subscription
298 protected $mediaWikiAnnounceUrl = 'https://lists.wikimedia.org/mailman/subscribe/mediawiki-announce';
301 * Supported language codes for Mailman
303 protected $mediaWikiAnnounceLanguages = array(
304 'ca', 'cs', 'da', 'de', 'en', 'es', 'et', 'eu', 'fi', 'fr', 'hr', 'hu',
305 'it', 'ja', 'ko', 'lt', 'nl', 'no', 'pl', 'pt', 'pt-br', 'ro', 'ru',
306 'sl', 'sr', 'sv', 'tr', 'uk'
310 * UI interface for displaying a short message
311 * The parameters are like parameters to wfMsg().
312 * The messages will be in wikitext format, which will be converted to an
313 * output format such as HTML or text before being sent to the user.
316 public abstract function showMessage( $msg /*, ... */ );
319 * Same as showMessage(), but for displaying errors
322 public abstract function showError( $msg /*, ... */ );
325 * Show a message to the installing user by using a Status object
326 * @param $status Status
328 public abstract function showStatusMessage( Status
$status );
331 * Constructor, always call this from child classes.
333 public function __construct() {
334 global $wgExtensionMessagesFiles, $wgUser;
336 // Disable the i18n cache and LoadBalancer
337 Language
::getLocalisationCache()->disableBackend();
338 LBFactory
::disableBackend();
340 // Load the installer's i18n file.
341 $wgExtensionMessagesFiles['MediawikiInstaller'] =
342 dirname( __FILE__
) . '/Installer.i18n.php';
344 // Having a user with id = 0 safeguards us from DB access via User::loadOptions().
345 $wgUser = User
::newFromId( 0 );
347 $this->settings
= $this->internalDefaults
;
349 foreach ( $this->defaultVarNames
as $var ) {
350 $this->settings
[$var] = $GLOBALS[$var];
353 $compiledDBs = array();
354 foreach ( self
::getDBTypes() as $type ) {
355 $installer = $this->getDBInstaller( $type );
357 if ( !$installer->isCompiled() ) {
360 $compiledDBs[] = $type;
362 $defaults = $installer->getGlobalDefaults();
364 foreach ( $installer->getGlobalNames() as $var ) {
365 if ( isset( $defaults[$var] ) ) {
366 $this->settings
[$var] = $defaults[$var];
368 $this->settings
[$var] = $GLOBALS[$var];
372 $this->setVar( '_CompiledDBs', $compiledDBs );
374 $this->parserTitle
= Title
::newFromText( 'Installer' );
375 $this->parserOptions
= new ParserOptions
; // language will be wrong :(
376 $this->parserOptions
->setEditSection( false );
380 * Get a list of known DB types.
384 public static function getDBTypes() {
385 return self
::$dbTypes;
389 * Do initial checks of the PHP environment. Set variables according to
390 * the observed environment.
392 * It's possible that this may be called under the CLI SAPI, not the SAPI
393 * that the wiki will primarily run under. In that case, the subclass should
394 * initialise variables such as wgScriptPath, before calling this function.
396 * Under the web subclass, it can already be assumed that PHP 5+ is in use
397 * and that sessions are working.
401 public function doEnvironmentChecks() {
402 $phpVersion = phpversion();
403 if( version_compare( $phpVersion, self
::MINIMUM_PHP_VERSION
, '>=' ) ) {
404 $this->showMessage( 'config-env-php', $phpVersion );
407 $this->showMessage( 'config-env-php-toolow', $phpVersion, self
::MINIMUM_PHP_VERSION
);
412 foreach ( $this->envChecks
as $check ) {
413 $status = $this->$check();
414 if ( $status === false ) {
420 $this->setVar( '_Environment', $good );
422 return $good ? Status
::newGood() : Status
::newFatal( 'config-env-bad' );
426 * Set a MW configuration variable, or internal installer configuration variable.
428 * @param $name String
429 * @param $value Mixed
431 public function setVar( $name, $value ) {
432 $this->settings
[$name] = $value;
436 * Get an MW configuration variable, or internal installer configuration variable.
437 * The defaults come from $GLOBALS (ultimately DefaultSettings.php).
438 * Installer variables are typically prefixed by an underscore.
440 * @param $name String
441 * @param $default Mixed
445 public function getVar( $name, $default = null ) {
446 if ( !isset( $this->settings
[$name] ) ) {
449 return $this->settings
[$name];
454 * Get an instance of DatabaseInstaller for the specified DB type.
456 * @param $type Mixed: DB installer for which is needed, false to use default.
458 * @return DatabaseInstaller
460 public function getDBInstaller( $type = false ) {
462 $type = $this->getVar( 'wgDBtype' );
465 $type = strtolower( $type );
467 if ( !isset( $this->dbInstallers
[$type] ) ) {
468 $class = ucfirst( $type ). 'Installer';
469 $this->dbInstallers
[$type] = new $class( $this );
472 return $this->dbInstallers
[$type];
476 * Determine if LocalSettings.php exists. If it does, return its variables,
477 * merged with those from AdminSettings.php, as an array.
481 public static function getExistingLocalSettings() {
484 wfSuppressWarnings();
485 $_lsExists = file_exists( "$IP/LocalSettings.php" );
493 require( "$IP/includes/DefaultSettings.php" );
494 require( "$IP/LocalSettings.php" );
495 if ( file_exists( "$IP/AdminSettings.php" ) ) {
496 require( "$IP/AdminSettings.php" );
498 return get_defined_vars();
502 * Get a fake password for sending back to the user in HTML.
503 * This is a security mechanism to avoid compromise of the password in the
504 * event of session ID compromise.
506 * @param $realPassword String
510 public function getFakePassword( $realPassword ) {
511 return str_repeat( '*', strlen( $realPassword ) );
515 * Set a variable which stores a password, except if the new value is a
516 * fake password in which case leave it as it is.
518 * @param $name String
519 * @param $value Mixed
521 public function setPassword( $name, $value ) {
522 if ( !preg_match( '/^\*+$/', $value ) ) {
523 $this->setVar( $name, $value );
528 * On POSIX systems return the primary group of the webserver we're running under.
529 * On other systems just returns null.
531 * This is used to advice the user that he should chgrp his mw-config/data/images directory as the
532 * webserver user before he can install.
534 * Public because SqliteInstaller needs it, and doesn't subclass Installer.
538 public static function maybeGetWebserverPrimaryGroup() {
539 if ( !function_exists( 'posix_getegid' ) ||
!function_exists( 'posix_getpwuid' ) ) {
540 # I don't know this, this isn't UNIX.
544 # posix_getegid() *not* getmygid() because we want the group of the webserver,
545 # not whoever owns the current script.
546 $gid = posix_getegid();
547 $getpwuid = posix_getpwuid( $gid );
548 $group = $getpwuid['name'];
554 * Convert wikitext $text to HTML.
556 * This is potentially error prone since many parser features require a complete
557 * installed MW database. The solution is to just not use those features when you
558 * write your messages. This appears to work well enough. Basic formatting and
559 * external links work just fine.
561 * But in case a translator decides to throw in a #ifexist or internal link or
562 * whatever, this function is guarded to catch the attempted DB access and to present
563 * some fallback text.
565 * @param $text String
566 * @param $lineStart Boolean
569 public function parse( $text, $lineStart = false ) {
573 $out = $wgParser->parse( $text, $this->parserTitle
, $this->parserOptions
, $lineStart );
574 $html = $out->getText();
575 } catch ( DBAccessError
$e ) {
576 $html = '<!--DB access attempted during parse--> ' . htmlspecialchars( $text );
578 if ( !empty( $this->debug
) ) {
579 $html .= "<!--\n" . $e->getTraceAsString() . "\n-->";
587 * @return ParserOptions
589 public function getParserOptions() {
590 return $this->parserOptions
;
593 public function disableLinkPopups() {
594 $this->parserOptions
->setExternalLinkTarget( false );
597 public function restoreLinkPopups() {
598 global $wgExternalLinkTarget;
599 $this->parserOptions
->setExternalLinkTarget( $wgExternalLinkTarget );
603 * Install step which adds a row to the site_stats table with appropriate
606 * @param $installer DatabaseInstaller
610 public function populateSiteStats( DatabaseInstaller
$installer ) {
611 $status = $installer->getConnection();
612 if ( !$status->isOK() ) {
615 $status->value
->insert( 'site_stats', array(
617 'ss_total_views' => 0,
618 'ss_total_edits' => 0,
619 'ss_good_articles' => 0,
620 'ss_total_pages' => 0,
623 __METHOD__
, 'IGNORE' );
624 return Status
::newGood();
628 * Exports all wg* variables stored by the installer into global scope.
630 public function exportVars() {
631 foreach ( $this->settings
as $name => $value ) {
632 if ( substr( $name, 0, 2 ) == 'wg' ) {
633 $GLOBALS[$name] = $value;
639 * Environment check for DB types.
642 protected function envCheckDB() {
647 foreach ( self
::getDBTypes() as $name ) {
648 $allNames[] = wfMsg( "config-type-$name" );
651 // cache initially available databases to make sure that everything will be displayed correctly
652 // after a refresh on env checks page
653 $databases = $this->getVar( '_CompiledDBs-preFilter' );
655 $databases = $this->getVar( '_CompiledDBs' );
656 $this->setVar( '_CompiledDBs-preFilter', $databases );
659 $databases = array_flip ( $databases );
660 foreach ( array_keys( $databases ) as $db ) {
661 $installer = $this->getDBInstaller( $db );
662 $status = $installer->checkPrerequisites();
663 if ( !$status->isGood() ) {
664 $this->showStatusMessage( $status );
666 if ( !$status->isOK() ) {
667 unset( $databases[$db] );
670 $databases = array_flip( $databases );
672 $this->showError( 'config-no-db', $wgLang->commaList( $allNames ) );
673 // @todo FIXME: This only works for the web installer!
676 $this->setVar( '_CompiledDBs', $databases );
681 * Environment check for register_globals.
683 protected function envCheckRegisterGlobals() {
684 if( wfIniGetBool( 'register_globals' ) ) {
685 $this->showMessage( 'config-register-globals' );
690 * Some versions of libxml+PHP break < and > encoding horribly
693 protected function envCheckBrokenXML() {
694 $test = new PhpXmlBugTester();
696 $this->showError( 'config-brokenlibxml' );
703 * Test PHP (probably 5.3.1, but it could regress again) to make sure that
704 * reference parameters to __call() are not converted to null
707 protected function envCheckPHP531() {
708 $test = new PhpRefCallBugTester
;
711 $this->showError( 'config-using531', phpversion() );
718 * Environment check for magic_quotes_runtime.
721 protected function envCheckMagicQuotes() {
722 if( wfIniGetBool( "magic_quotes_runtime" ) ) {
723 $this->showError( 'config-magic-quotes-runtime' );
730 * Environment check for magic_quotes_sybase.
733 protected function envCheckMagicSybase() {
734 if ( wfIniGetBool( 'magic_quotes_sybase' ) ) {
735 $this->showError( 'config-magic-quotes-sybase' );
742 * Environment check for mbstring.func_overload.
745 protected function envCheckMbstring() {
746 if ( wfIniGetBool( 'mbstring.func_overload' ) ) {
747 $this->showError( 'config-mbstring' );
754 * Environment check for zend.ze1_compatibility_mode.
757 protected function envCheckZE1() {
758 if ( wfIniGetBool( 'zend.ze1_compatibility_mode' ) ) {
759 $this->showError( 'config-ze1' );
766 * Environment check for safe_mode.
769 protected function envCheckSafeMode() {
770 if ( wfIniGetBool( 'safe_mode' ) ) {
771 $this->setVar( '_SafeMode', true );
772 $this->showMessage( 'config-safe-mode' );
778 * Environment check for the XML module.
781 protected function envCheckXML() {
782 if ( !function_exists( "utf8_encode" ) ) {
783 $this->showError( 'config-xml-bad' );
790 * Environment check for the PCRE module.
793 protected function envCheckPCRE() {
794 if ( !function_exists( 'preg_match' ) ) {
795 $this->showError( 'config-pcre' );
798 wfSuppressWarnings();
799 $regexd = preg_replace( '/[\x{0430}-\x{04FF}]/iu', '', '-АБВГД-' );
801 if ( $regexd != '--' ) {
802 $this->showError( 'config-pcre-no-utf8' );
809 * Environment check for available memory.
812 protected function envCheckMemory() {
813 $limit = ini_get( 'memory_limit' );
815 if ( !$limit ||
$limit == -1 ) {
819 $n = wfShorthandToInteger( $limit );
821 if( $n < $this->minMemorySize
* 1024 * 1024 ) {
822 $newLimit = "{$this->minMemorySize}M";
824 if( ini_set( "memory_limit", $newLimit ) === false ) {
825 $this->showMessage( 'config-memory-bad', $limit );
827 $this->showMessage( 'config-memory-raised', $limit, $newLimit );
828 $this->setVar( '_RaiseMemory', true );
835 * Environment check for compiled object cache types.
837 protected function envCheckCache() {
839 foreach ( $this->objectCaches
as $name => $function ) {
840 if ( function_exists( $function ) ) {
841 if ( $name == 'xcache' && !wfIniGetBool( 'xcache.var_size' ) ) {
844 $caches[$name] = true;
849 $this->showMessage( 'config-no-cache' );
852 $this->setVar( '_Caches', $caches );
856 * Scare user to death if they have mod_security
859 protected function envCheckModSecurity() {
860 if ( self
::apacheModulePresent( 'mod_security' ) ) {
861 $this->showMessage( 'config-mod-security' );
867 * Search for GNU diff3.
870 protected function envCheckDiff3() {
871 $names = array( "gdiff3", "diff3", "diff3.exe" );
872 $versionInfo = array( '$1 --version 2>&1', 'GNU diffutils' );
874 $diff3 = self
::locateExecutableInDefaultPaths( $names, $versionInfo );
877 $this->setVar( 'wgDiff3', $diff3 );
879 $this->setVar( 'wgDiff3', false );
880 $this->showMessage( 'config-diff3-bad' );
886 * Environment check for ImageMagick and GD.
889 protected function envCheckGraphics() {
890 $names = array( wfIsWindows() ?
'convert.exe' : 'convert' );
891 $convert = self
::locateExecutableInDefaultPaths( $names, array( '$1 -version', 'ImageMagick' ) );
893 $this->setVar( 'wgImageMagickConvertCommand', '' );
895 $this->setVar( 'wgImageMagickConvertCommand', $convert );
896 $this->showMessage( 'config-imagemagick', $convert );
898 } elseif ( function_exists( 'imagejpeg' ) ) {
899 $this->showMessage( 'config-gd' );
902 $this->showMessage( 'config-no-scaling' );
908 * Environment check for the server hostname.
910 protected function envCheckServer() {
911 $server = $this->envGetDefaultServer();
912 $this->showMessage( 'config-using-server', $server );
913 $this->setVar( 'wgServer', $server );
918 * Helper function to be called from envCheckServer()
921 protected abstract function envGetDefaultServer();
924 * Environment check for setting $IP and $wgScriptPath.
927 protected function envCheckPath() {
929 $IP = dirname( dirname( dirname( __FILE__
) ) );
930 $this->setVar( 'IP', $IP );
932 $this->showMessage( 'config-using-uri', $this->getVar( 'wgServer' ), $this->getVar( 'wgScriptPath' ) );
937 * Environment check for setting the preferred PHP file extension.
939 protected function envCheckExtension() {
940 // @todo FIXME: Detect this properly
941 if ( defined( 'MW_INSTALL_PHP5_EXT' ) ) {
946 $this->setVar( 'wgScriptExtension', ".$ext" );
954 protected function envCheckShellLocale() {
955 $os = php_uname( 's' );
956 $supported = array( 'Linux', 'SunOS', 'HP-UX', 'Darwin' ); # Tested these
958 if ( !in_array( $os, $supported ) ) {
962 # Get a list of available locales.
964 $lines = wfShellExec( '/usr/bin/locale -a', $ret );
970 $lines = wfArrayMap( 'trim', explode( "\n", $lines ) );
971 $candidatesByLocale = array();
972 $candidatesByLang = array();
974 foreach ( $lines as $line ) {
975 if ( $line === '' ) {
979 if ( !preg_match( '/^([a-zA-Z]+)(_[a-zA-Z]+|)\.(utf8|UTF-8)(@[a-zA-Z_]*|)$/i', $line, $m ) ) {
983 list( $all, $lang, $territory, $charset, $modifier ) = $m;
985 $candidatesByLocale[$m[0]] = $m;
986 $candidatesByLang[$lang][] = $m;
989 # Try the current value of LANG.
990 if ( isset( $candidatesByLocale[ getenv( 'LANG' ) ] ) ) {
991 $this->setVar( 'wgShellLocale', getenv( 'LANG' ) );
995 # Try the most common ones.
996 $commonLocales = array( 'en_US.UTF-8', 'en_US.utf8', 'de_DE.UTF-8', 'de_DE.utf8' );
997 foreach ( $commonLocales as $commonLocale ) {
998 if ( isset( $candidatesByLocale[$commonLocale] ) ) {
999 $this->setVar( 'wgShellLocale', $commonLocale );
1004 # Is there an available locale in the Wiki's language?
1005 $wikiLang = $this->getVar( 'wgLanguageCode' );
1007 if ( isset( $candidatesByLang[$wikiLang] ) ) {
1008 $m = reset( $candidatesByLang[$wikiLang] );
1009 $this->setVar( 'wgShellLocale', $m[0] );
1013 # Are there any at all?
1014 if ( count( $candidatesByLocale ) ) {
1015 $m = reset( $candidatesByLocale );
1016 $this->setVar( 'wgShellLocale', $m[0] );
1028 protected function envCheckUploadsDirectory() {
1031 $dir = $IP . '/images/';
1032 $url = $this->getVar( 'wgServer' ) . $this->getVar( 'wgScriptPath' ) . '/images/';
1033 $safe = !$this->dirIsExecutable( $dir, $url );
1036 $this->showMessage( 'config-uploads-not-safe', $dir );
1042 * Checks if suhosin.get.max_value_length is set, and if so, sets
1043 * $wgResourceLoaderMaxQueryLength to that value in the generated
1044 * LocalSettings file
1047 protected function envCheckSuhosinMaxValueLength() {
1048 $maxValueLength = ini_get( 'suhosin.get.max_value_length' );
1049 if ( $maxValueLength > 0 ) {
1050 if( $maxValueLength < 1024 ) {
1051 # Only warn if the value is below the sane 1024
1052 $this->showMessage( 'config-suhosin-max-value-length', $maxValueLength );
1055 $maxValueLength = -1;
1057 $this->setVar( 'wgResourceLoaderMaxQueryLength', $maxValueLength );
1062 * Convert a hex string representing a Unicode code point to that code point.
1066 protected function unicodeChar( $c ) {
1070 } elseif ($c <= 0x7FF) {
1071 return chr(0xC0 |
$c >> 6) . chr(0x80 |
$c & 0x3F);
1072 } elseif ($c <= 0xFFFF) {
1073 return chr(0xE0 |
$c >> 12) . chr(0x80 |
$c >> 6 & 0x3F)
1074 . chr(0x80 |
$c & 0x3F);
1075 } elseif ($c <= 0x10FFFF) {
1076 return chr(0xF0 |
$c >> 18) . chr(0x80 |
$c >> 12 & 0x3F)
1077 . chr(0x80 |
$c >> 6 & 0x3F)
1078 . chr(0x80 |
$c & 0x3F);
1086 * Check the libicu version
1088 protected function envCheckLibicu() {
1089 $utf8 = function_exists( 'utf8_normalize' );
1090 $intl = function_exists( 'normalizer_normalize' );
1093 * This needs to be updated something that the latest libicu
1094 * will properly normalize. This normalization was found at
1095 * http://www.unicode.org/versions/Unicode5.2.0/#Character_Additions
1096 * Note that we use the hex representation to create the code
1097 * points in order to avoid any Unicode-destroying during transit.
1099 $not_normal_c = $this->unicodeChar("FA6C");
1100 $normal_c = $this->unicodeChar("242EE");
1102 $useNormalizer = 'php';
1103 $needsUpdate = false;
1106 * We're going to prefer the pecl extension here unless
1107 * utf8_normalize is more up to date.
1110 $useNormalizer = 'utf8';
1111 $utf8 = utf8_normalize( $not_normal_c, UtfNormal
::UNORM_NFC
);
1112 if ( $utf8 !== $normal_c ) {
1113 $needsUpdate = true;
1117 $useNormalizer = 'intl';
1118 $intl = normalizer_normalize( $not_normal_c, Normalizer
::FORM_C
);
1119 if ( $intl !== $normal_c ) {
1120 $needsUpdate = true;
1124 // Uses messages 'config-unicode-using-php', 'config-unicode-using-utf8', 'config-unicode-using-intl'
1125 if( $useNormalizer === 'php' ) {
1126 $this->showMessage( 'config-unicode-pure-php-warning' );
1128 $this->showMessage( 'config-unicode-using-' . $useNormalizer );
1129 if( $needsUpdate ) {
1130 $this->showMessage( 'config-unicode-update-warning' );
1138 protected function envCheckCtype() {
1139 if ( !function_exists( 'ctype_digit' ) ) {
1140 $this->showError( 'config-ctype' );
1147 * Get an array of likely places we can find executables. Check a bunch
1148 * of known Unix-like defaults, as well as the PATH environment variable
1149 * (which should maybe make it work for Windows?)
1153 protected static function getPossibleBinPaths() {
1155 array( '/usr/bin', '/usr/local/bin', '/opt/csw/bin',
1156 '/usr/gnu/bin', '/usr/sfw/bin', '/sw/bin', '/opt/local/bin' ),
1157 explode( PATH_SEPARATOR
, getenv( 'PATH' ) )
1162 * Search a path for any of the given executable names. Returns the
1163 * executable name if found. Also checks the version string returned
1164 * by each executable.
1166 * Used only by environment checks.
1168 * @param $path String: path to search
1169 * @param $names Array of executable names
1170 * @param $versionInfo Boolean false or array with two members:
1171 * 0 => Command to run for version check, with $1 for the full executable name
1172 * 1 => String to compare the output with
1174 * If $versionInfo is not false, only executables with a version
1175 * matching $versionInfo[1] will be returned.
1176 * @return bool|string
1178 public static function locateExecutable( $path, $names, $versionInfo = false ) {
1179 if ( !is_array( $names ) ) {
1180 $names = array( $names );
1183 foreach ( $names as $name ) {
1184 $command = $path . DIRECTORY_SEPARATOR
. $name;
1186 wfSuppressWarnings();
1187 $file_exists = file_exists( $command );
1188 wfRestoreWarnings();
1190 if ( $file_exists ) {
1191 if ( !$versionInfo ) {
1195 $file = str_replace( '$1', wfEscapeShellArg( $command ), $versionInfo[0] );
1196 if ( strstr( wfShellExec( $file ), $versionInfo[1] ) !== false ) {
1205 * Same as locateExecutable(), but checks in getPossibleBinPaths() by default
1206 * @see locateExecutable()
1208 * @param $versionInfo bool
1209 * @return bool|string
1211 public static function locateExecutableInDefaultPaths( $names, $versionInfo = false ) {
1212 foreach( self
::getPossibleBinPaths() as $path ) {
1213 $exe = self
::locateExecutable( $path, $names, $versionInfo );
1214 if( $exe !== false ) {
1222 * Checks if scripts located in the given directory can be executed via the given URL.
1224 * Used only by environment checks.
1225 * @param $dir string
1226 * @param $url string
1227 * @return bool|int|string
1229 public function dirIsExecutable( $dir, $url ) {
1230 $scriptTypes = array(
1232 "<?php echo 'ex' . 'ec';",
1233 "#!/var/env php5\n<?php echo 'ex' . 'ec';",
1237 // it would be good to check other popular languages here, but it'll be slow.
1239 wfSuppressWarnings();
1241 foreach ( $scriptTypes as $ext => $contents ) {
1242 foreach ( $contents as $source ) {
1243 $file = 'exectest.' . $ext;
1245 if ( !file_put_contents( $dir . $file, $source ) ) {
1250 $text = Http
::get( $url . $file, array( 'timeout' => 3 ) );
1252 catch( MWException
$e ) {
1253 // Http::get throws with allow_url_fopen = false and no curl extension.
1256 unlink( $dir . $file );
1258 if ( $text == 'exec' ) {
1259 wfRestoreWarnings();
1265 wfRestoreWarnings();
1271 * Checks for presence of an Apache module. Works only if PHP is running as an Apache module, too.
1273 * @param $moduleName String: Name of module to check.
1276 public static function apacheModulePresent( $moduleName ) {
1277 if ( function_exists( 'apache_get_modules' ) && in_array( $moduleName, apache_get_modules() ) ) {
1280 // try it the hard way
1282 phpinfo( INFO_MODULES
);
1283 $info = ob_get_clean();
1284 return strpos( $info, $moduleName ) !== false;
1288 * ParserOptions are constructed before we determined the language, so fix it
1290 * @param $lang Language
1292 public function setParserLanguage( $lang ) {
1293 $this->parserOptions
->setTargetLanguage( $lang );
1294 $this->parserOptions
->setUserLang( $lang );
1298 * Overridden by WebInstaller to provide lastPage parameters.
1299 * @param $page string
1302 protected function getDocUrl( $page ) {
1303 return "{$_SERVER['PHP_SELF']}?page=" . urlencode( $page );
1307 * Finds extensions that follow the format /extensions/Name/Name.php,
1308 * and returns an array containing the value for 'Name' for each found extension.
1312 public function findExtensions() {
1313 if( $this->getVar( 'IP' ) === null ) {
1318 $extDir = $this->getVar( 'IP' ) . '/extensions';
1319 $dh = opendir( $extDir );
1321 while ( ( $file = readdir( $dh ) ) !== false ) {
1322 if( !is_dir( "$extDir/$file" ) ) {
1325 if( file_exists( "$extDir/$file/$file.php" ) ) {
1329 natcasesort( $exts );
1335 * Installs the auto-detected extensions.
1339 protected function includeExtensions() {
1341 $exts = $this->getVar( '_Extensions' );
1342 $IP = $this->getVar( 'IP' );
1345 * We need to include DefaultSettings before including extensions to avoid
1346 * warnings about unset variables. However, the only thing we really
1347 * want here is $wgHooks['LoadExtensionSchemaUpdates']. This won't work
1348 * if the extension has hidden hook registration in $wgExtensionFunctions,
1349 * but we're not opening that can of worms
1350 * @see https://bugzilla.wikimedia.org/show_bug.cgi?id=26857
1352 global $wgAutoloadClasses;
1353 $wgAutoloadClasses = array();
1355 require( "$IP/includes/DefaultSettings.php" );
1357 foreach( $exts as $e ) {
1358 require_once( "$IP/extensions/$e/$e.php" );
1361 $hooksWeWant = isset( $wgHooks['LoadExtensionSchemaUpdates'] ) ?
1362 $wgHooks['LoadExtensionSchemaUpdates'] : array();
1364 // Unset everyone else's hooks. Lord knows what someone might be doing
1365 // in ParserFirstCallInit (see bug 27171)
1366 $GLOBALS['wgHooks'] = array( 'LoadExtensionSchemaUpdates' => $hooksWeWant );
1368 return Status
::newGood();
1372 * Get an array of install steps. Should always be in the format of
1374 * 'name' => 'someuniquename',
1375 * 'callback' => array( $obj, 'method' ),
1377 * There must be a config-install-$name message defined per step, which will
1378 * be shown on install.
1380 * @param $installer DatabaseInstaller so we can make callbacks
1383 protected function getInstallSteps( DatabaseInstaller
$installer ) {
1384 $coreInstallSteps = array(
1385 array( 'name' => 'database', 'callback' => array( $installer, 'setupDatabase' ) ),
1386 array( 'name' => 'tables', 'callback' => array( $installer, 'createTables' ) ),
1387 array( 'name' => 'interwiki', 'callback' => array( $installer, 'populateInterwikiTable' ) ),
1388 array( 'name' => 'stats', 'callback' => array( $this, 'populateSiteStats' ) ),
1389 array( 'name' => 'keys', 'callback' => array( $this, 'generateKeys' ) ),
1390 array( 'name' => 'sysop', 'callback' => array( $this, 'createSysop' ) ),
1391 array( 'name' => 'mainpage', 'callback' => array( $this, 'createMainpage' ) ),
1394 // Build the array of install steps starting from the core install list,
1395 // then adding any callbacks that wanted to attach after a given step
1396 foreach( $coreInstallSteps as $step ) {
1397 $this->installSteps
[] = $step;
1398 if( isset( $this->extraInstallSteps
[ $step['name'] ] ) ) {
1399 $this->installSteps
= array_merge(
1400 $this->installSteps
,
1401 $this->extraInstallSteps
[ $step['name'] ]
1406 // Prepend any steps that want to be at the beginning
1407 if( isset( $this->extraInstallSteps
['BEGINNING'] ) ) {
1408 $this->installSteps
= array_merge(
1409 $this->extraInstallSteps
['BEGINNING'],
1414 // Extensions should always go first, chance to tie into hooks and such
1415 if( count( $this->getVar( '_Extensions' ) ) ) {
1416 array_unshift( $this->installSteps
,
1417 array( 'name' => 'extensions', 'callback' => array( $this, 'includeExtensions' ) )
1419 $this->installSteps
[] = array(
1420 'name' => 'extension-tables',
1421 'callback' => array( $installer, 'createExtensionTables' )
1424 return $this->installSteps
;
1428 * Actually perform the installation.
1430 * @param $startCB Array A callback array for the beginning of each step
1431 * @param $endCB Array A callback array for the end of each step
1433 * @return Array of Status objects
1435 public function performInstallation( $startCB, $endCB ) {
1436 $installResults = array();
1437 $installer = $this->getDBInstaller();
1438 $installer->preInstall();
1439 $steps = $this->getInstallSteps( $installer );
1440 foreach( $steps as $stepObj ) {
1441 $name = $stepObj['name'];
1442 call_user_func_array( $startCB, array( $name ) );
1444 // Perform the callback step
1445 $status = call_user_func( $stepObj['callback'], $installer );
1447 // Output and save the results
1448 call_user_func( $endCB, $name, $status );
1449 $installResults[$name] = $status;
1451 // If we've hit some sort of fatal, we need to bail.
1452 // Callback already had a chance to do output above.
1453 if( !$status->isOk() ) {
1457 if( $status->isOk() ) {
1458 $this->setVar( '_InstallDone', true );
1460 return $installResults;
1464 * Generate $wgSecretKey. Will warn if we had to use an insecure random source.
1468 public function generateKeys() {
1469 $keys = array( 'wgSecretKey' => 64 );
1470 if ( strval( $this->getVar( 'wgUpgradeKey' ) ) === '' ) {
1471 $keys['wgUpgradeKey'] = 16;
1473 return $this->doGenerateKeys( $keys );
1477 * Generate a secret value for variables using our CryptRand generator.
1478 * Produce a warning if the random source was insecure.
1480 * @param $keys Array
1483 protected function doGenerateKeys( $keys ) {
1484 $status = Status
::newGood();
1487 foreach ( $keys as $name => $length ) {
1488 $secretKey = MWCryptRand
::generateHex( $length, true );
1489 if ( !MWCryptRand
::wasStrong() ) {
1493 $this->setVar( $name, $secretKey );
1497 $names = array_keys( $keys );
1498 $names = preg_replace( '/^(.*)$/', '\$$1', $names );
1500 $status->warning( 'config-insecure-keys', $wgLang->listToText( $names ), count( $names ) );
1507 * Create the first user account, grant it sysop and bureaucrat rights
1511 protected function createSysop() {
1512 $name = $this->getVar( '_AdminName' );
1513 $user = User
::newFromName( $name );
1516 // We should've validated this earlier anyway!
1517 return Status
::newFatal( 'config-admin-error-user', $name );
1520 if ( $user->idForName() == 0 ) {
1521 $user->addToDatabase();
1524 $user->setPassword( $this->getVar( '_AdminPassword' ) );
1525 } catch( PasswordError
$pwe ) {
1526 return Status
::newFatal( 'config-admin-error-password', $name, $pwe->getMessage() );
1529 $user->addGroup( 'sysop' );
1530 $user->addGroup( 'bureaucrat' );
1531 if( $this->getVar( '_AdminEmail' ) ) {
1532 $user->setEmail( $this->getVar( '_AdminEmail' ) );
1534 $user->saveSettings();
1536 // Update user count
1537 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
1538 $ssUpdate->doUpdate();
1540 $status = Status
::newGood();
1542 if( $this->getVar( '_Subscribe' ) && $this->getVar( '_AdminEmail' ) ) {
1543 $this->subscribeToMediaWikiAnnounce( $status );
1552 private function subscribeToMediaWikiAnnounce( Status
$s ) {
1554 'email' => $this->getVar( '_AdminEmail' ),
1559 // Mailman doesn't support as many languages as we do, so check to make
1560 // sure their selected language is available
1561 $myLang = $this->getVar( '_UserLang' );
1562 if( in_array( $myLang, $this->mediaWikiAnnounceLanguages
) ) {
1563 $myLang = $myLang == 'pt-br' ?
'pt_BR' : $myLang; // rewrite to Mailman's pt_BR
1564 $params['language'] = $myLang;
1567 if( MWHttpRequest
::canMakeRequests() ) {
1568 $res = MWHttpRequest
::factory( $this->mediaWikiAnnounceUrl
,
1569 array( 'method' => 'POST', 'postData' => $params ) )->execute();
1570 if( !$res->isOK() ) {
1571 $s->warning( 'config-install-subscribe-fail', $res->getMessage() );
1574 $s->warning( 'config-install-subscribe-notpossible' );
1579 * Insert Main Page with default content.
1581 * @param $installer DatabaseInstaller
1584 protected function createMainpage( DatabaseInstaller
$installer ) {
1585 $status = Status
::newGood();
1587 $page = WikiPage
::factory( Title
::newMainPage() );
1588 $page->doEdit( wfMsgForContent( 'mainpagetext' ) . "\n\n" .
1589 wfMsgForContent( 'mainpagedocfooter' ),
1593 User
::newFromName( 'MediaWiki default' ) );
1594 } catch (MWException
$e) {
1595 //using raw, because $wgShowExceptionDetails can not be set yet
1596 $status->fatal( 'config-install-mainpage-failed', $e->getMessage() );
1603 * Override the necessary bits of the config to run an installation.
1605 public static function overrideConfig() {
1606 define( 'MW_NO_SESSION', 1 );
1608 // Don't access the database
1609 $GLOBALS['wgUseDatabaseMessages'] = false;
1610 // Don't cache langconv tables
1611 $GLOBALS['wgLanguageConverterCacheType'] = CACHE_NONE
;
1613 $GLOBALS['wgShowExceptionDetails'] = true;
1614 // Don't break forms
1615 $GLOBALS['wgExternalLinkTarget'] = '_blank';
1617 // Extended debugging
1618 $GLOBALS['wgShowSQLErrors'] = true;
1619 $GLOBALS['wgShowDBErrorBacktrace'] = true;
1621 // Allow multiple ob_flush() calls
1622 $GLOBALS['wgDisableOutputCompression'] = true;
1624 // Use a sensible cookie prefix (not my_wiki)
1625 $GLOBALS['wgCookiePrefix'] = 'mw_installer';
1627 // Some of the environment checks make shell requests, remove limits
1628 $GLOBALS['wgMaxShellMemory'] = 0;
1632 * Add an installation step following the given step.
1634 * @param $callback Array A valid installation callback array, in this form:
1635 * array( 'name' => 'some-unique-name', 'callback' => array( $obj, 'function' ) );
1636 * @param $findStep String the step to find. Omit to put the step at the beginning
1638 public function addInstallStep( $callback, $findStep = 'BEGINNING' ) {
1639 $this->extraInstallSteps
[$findStep][] = $callback;
1643 * Disable the time limit for execution.
1644 * Some long-running pages (Install, Upgrade) will want to do this
1646 protected function disableTimeLimit() {
1647 wfSuppressWarnings();
1648 set_time_limit( 0 );
1649 wfRestoreWarnings();