<?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 {
-
+
/**
* TODO: make protected?
- *
+ *
* @var array
*/
- public $settings;
-
+ public $settings;
+
/**
* Cached DB installer instances, access using getDBInstaller().
- *
+ *
* @var array
*/
protected $dbInstallers = array();
/**
* Minimum memory size in MB.
- *
+ *
* @var integer
*/
- protected $minMemorySize = 50;
-
+ protected $minMemorySize = 50;
+
/**
* Cached Title, used by parse().
- *
+ *
* @var Title
*/
protected $parserTitle;
-
+
/**
* Cached ParserOptions, used by parse().
- *
+ *
* @var ParserOptions
- */
- protected $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 $dbTypes = array(
+ protected static $dbTypes = array(
'mysql',
'postgres',
+ 'oracle',
'sqlite',
- 'oracle'
);
-
+
/**
* 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(
- 'envLatestVersion',
'envCheckDB',
'envCheckRegisterGlobals',
+ 'envCheckBrokenXML',
+ 'envCheckPHP531',
'envCheckMagicQuotes',
'envCheckMagicSybase',
'envCheckMbstring',
'envCheckDiff3',
'envCheckGraphics',
'envCheckPath',
- 'envCheckWriteableDir',
'envCheckExtension',
'envCheckShellLocale',
'envCheckUploadsDirectory',
- );
-
+ 'envCheckLibicu'
+ );
+
/**
* UI interface for displaying a short message
* The parameters are like parameters to wfMsg().
*/
public abstract function showMessage( $msg /*, ... */ );
- /**
- * TODO: doucment
- *
- * @param $status
- */
- public abstract function showStatusMessage( $status );
-
/**
* Constructor, always call this from child classes.
*/
- public function __construct() {
+ public function __construct() {
// Disable the i18n cache and LoadBalancer
Language::getLocalisationCache()->disableBackend();
LBFactory::disableBackend();
}
-
+
/**
* Get a list of known DB types.
*/
- public function getDBTypes() {
- return $this->dbTypes;
- }
-
+ public static function getDBTypes() {
+ return self::$dbTypes;
+ }
+
/**
* Do initial checks of the PHP environment. Set variables according to
* the observed environment.
*
* Under the web subclass, it can already be assumed that PHP 5+ is in use
* and that sessions are working.
- *
+ *
* @return boolean
*/
public function doEnvironmentChecks() {
- $this->showMessage( 'config-env-php', phpversion() );
-
$good = true;
-
+
foreach ( $this->envChecks as $check ) {
$status = $this->$check();
if ( $status === false ) {
$good = false;
}
}
-
+
$this->setVar( '_Environment', $good );
-
+
if ( $good ) {
$this->showMessage( 'config-env-good' );
} else {
$this->showMessage( 'config-env-bad' );
}
-
+
return $good;
}
/**
* Set a MW configuration variable, or internal installer configuration variable.
- *
+ *
* @param $name String
* @param $value Mixed
*/
* 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 ) {
} 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 exists. If it does, return an appropriate
- * status for whether we should can upgrade or not.
- *
- * @return Status
+ * Determine if LocalSettings.php exists. If it does, return its variables,
+ * merged with those from AdminSettings.php, as an array.
+ *
+ * @return Array
*/
- public function getLocalSettingsStatus() {
+ public function getExistingLocalSettings() {
global $IP;
- $status = Status::newGood();
-
wfSuppressWarnings();
- $ls = file_exists( "$IP/LocalSettings.php" );
+ $_lsExists = file_exists( "$IP/LocalSettings.php" );
wfRestoreWarnings();
- if( $ls ) {
- if( $this->getDBInstaller()->needsUpgrade() ) {
- $status->warning( 'config-localsettings-upgrade' );
- }
- else {
- $status->fatal( 'config-localsettings-noupgrade' );
- }
+ if( !$_lsExists ) {
+ return false;
}
-
- return $status;
- }
-
+ unset($_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 ) {
/**
* 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 $value Mixed
*/
if ( !preg_match( '/^\*+$/', $value ) ) {
$this->setVar( $name, $value );
}
- }
+ }
/**
* On POSIX systems return the primary group of the webserver we're running under.
$group = $getpwuid['name'];
return $group;
- }
-
+ }
+
/**
* Convert wikitext $text to HTML.
*
* 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 attempted DB access and to present
+ * whatever, this function is guarded to catch the attempted DB access and to present
* some fallback text.
*
* @param $text 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;
- }
-
- /**
- * TODO: document
- *
- * @param DatabaseInstaller $installer
- *
- * @return Status
- */
- public function installDatabase( DatabaseInstaller &$installer ) {
- if( !$installer ) {
- $type = $this->getVar( 'wgDBtype' );
- $status = Status::newFatal( "config-no-db", $type );
- } else {
- $status = $installer->setupDatabase();
- }
-
- return $status;
}
+ public function getParserOptions() {
+ return $this->parserOptions;
+ }
+
+ public function disableLinkPopups() {
+ $this->parserOptions->setExternalLinkTarget( false );
+ }
+
+ public function restoreLinkPopups() {
+ global $wgExternalLinkTarget;
+ $this->parserOptions->setExternalLinkTarget( $wgExternalLinkTarget );
+ }
+
/**
* TODO: document
- *
- * @param DatabaseInstaller $installer
- *
+ *
+ * @param $installer DatabaseInstaller
+ *
* @return Status
*/
public function installTables( DatabaseInstaller &$installer ) {
$status = $installer->createTables();
-
+
if( $status->isOK() ) {
LBFactory::enableBackend();
}
return $status;
}
- /**
- * TODO: document
- *
- * @param DatabaseInstaller $installer
- *
- * @return Status
- */
- public function installInterwiki( DatabaseInstaller &$installer ) {
- return $installer->populateInterwikiTable();
- }
-
/**
* Exports all wg* variables stored by the installer into global scope.
*/
$GLOBALS[$name] = $value;
}
}
- }
-
- /**
- * Check if we're installing the latest version.
- */
- public function envLatestVersion() {
- global $wgVersion;
-
- $latestInfoUrl = 'http://www.mediawiki.org/w/api.php?action=mwreleases&format=json';
- $latestInfo = Http::get( $latestInfoUrl );
-
- if( !$latestInfo ) {
- $this->showMessage( 'config-env-latest-can-not-check', $latestInfoUrl );
- return;
- }
-
- $this->setVar( '_ExternalHTTP', true );
- $latestInfo = FormatJson::decode($latestInfo);
-
- if ($latestInfo === false || !isset( $latestInfo->mwreleases ) ) {
- # For when the request is successful but there's e.g. some silly man in
- # the middle firewall blocking us, e.g. one of those annoying airport ones
- $this->showMessage( 'config-env-latest-data-invalid', $latestInfoUrl );
- return;
- }
-
- foreach( $latestInfo->mwreleases as $rel ) {
- if( isset( $rel->current ) ) {
- $currentVersion = $rel->version;
- }
- }
-
- if( version_compare( $wgVersion, $currentVersion, '<' ) ) {
- $this->showMessage( 'config-env-latest-old' );
- $this->showHelpBox( 'config-env-latest-help', $wgVersion, $currentVersion );
- } elseif( version_compare( $wgVersion, $currentVersion, '>' ) ) {
- $this->showMessage( 'config-env-latest-new' );
- }
-
- $this->showMessage( 'config-env-latest-ok' );
}
/**
* Environment check for DB types.
*/
- public function envCheckDB() {
+ protected function envCheckDB() {
global $wgLang;
-
+
$compiledDBs = array();
$goodNames = array();
$allNames = array();
-
- foreach ( $this->dbTypes as $name ) {
+
+ foreach ( self::getDBTypes() as $name ) {
$db = $this->getDBInstaller( $name );
$readableName = wfMsg( 'config-type-' . $name );
-
+
if ( $db->isCompiled() ) {
$compiledDBs[] = $name;
$goodNames[] = $readableName;
}
-
+
$allNames[] = $readableName;
}
-
+
$this->setVar( '_CompiledDBs', $compiledDBs );
-
+
if ( !$compiledDBs ) {
$this->showMessage( 'config-no-db' );
+ // FIXME: this only works for the web installer!
$this->showHelpBox( 'config-no-db-help', $wgLang->commaList( $allNames ) );
return false;
}
-
- $this->showMessage( 'config-have-db', $wgLang->commaList( $goodNames ) );
+
+ // Check for FTS3 full-text search module
+ $sqlite = $this->getDBInstaller( 'sqlite' );
+ if ( $sqlite->isCompiled() ) {
+ $db = new DatabaseSqliteStandalone( ':memory:' );
+ if( $db->getFulltextSearchModule() != 'FTS3' ) {
+ $this->showMessage( 'config-no-fts3' );
+ }
+ }
}
/**
* Environment check for register_globals.
*/
- public function envCheckRegisterGlobals() {
+ 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->showMessage( '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->showMessage( 'config-using531' );
+ return false;
+ }
+ }
+
/**
* Environment check for magic_quotes_runtime.
*/
- public function envCheckMagicQuotes() {
+ protected function envCheckMagicQuotes() {
if( wfIniGetBool( "magic_quotes_runtime" ) ) {
$this->showMessage( 'config-magic-quotes-runtime' );
return false;
/**
* Environment check for magic_quotes_sybase.
*/
- public function envCheckMagicSybase() {
+ protected function envCheckMagicSybase() {
if ( wfIniGetBool( 'magic_quotes_sybase' ) ) {
$this->showMessage( 'config-magic-quotes-sybase' );
return false;
/**
* Environment check for mbstring.func_overload.
*/
- public function envCheckMbstring() {
+ protected function envCheckMbstring() {
if ( wfIniGetBool( 'mbstring.func_overload' ) ) {
$this->showMessage( 'config-mbstring' );
return false;
/**
* Environment check for zend.ze1_compatibility_mode.
*/
- public function envCheckZE1() {
+ protected function envCheckZE1() {
if ( wfIniGetBool( 'zend.ze1_compatibility_mode' ) ) {
$this->showMessage( 'config-ze1' );
return false;
/**
* Environment check for safe_mode.
*/
- public function envCheckSafeMode() {
+ protected function envCheckSafeMode() {
if ( wfIniGetBool( 'safe_mode' ) ) {
$this->setVar( '_SafeMode', true );
$this->showMessage( 'config-safe-mode' );
/**
* Environment check for the XML module.
*/
- public function envCheckXML() {
+ protected function envCheckXML() {
if ( !function_exists( "utf8_encode" ) ) {
$this->showMessage( 'config-xml-bad' );
return false;
}
- $this->showMessage( 'config-xml-good' );
}
/**
* Environment check for the PCRE module.
*/
- public function envCheckPCRE() {
+ protected function envCheckPCRE() {
if ( !function_exists( 'preg_match' ) ) {
$this->showMessage( 'config-pcre' );
return false;
}
+ wfSuppressWarnings();
+ $regexd = preg_replace( '/[\x{0400}-\x{04FF}]/u', '', '-АБВГД-' );
+ wfRestoreWarnings();
+ if ( $regexd != '--' ) {
+ $this->showMessage( 'config-pcre-no-utf8' );
+ return false;
+ }
}
/**
* Environment check for available memory.
*/
- public function envCheckMemory() {
+ protected function envCheckMemory() {
$limit = ini_get( 'memory_limit' );
-
+
if ( !$limit || $limit == -1 ) {
- $this->showMessage( 'config-memory-none' );
return true;
}
-
+
$n = intval( $limit );
-
+
if( preg_match( '/^([0-9]+)[Mm]$/', trim( $limit ), $m ) ) {
$n = intval( $m[1] * ( 1024 * 1024 ) );
}
-
+
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->setVar( '_RaiseMemory', true );
}
} else {
- $this->showMessage( 'config-memory-ok', $limit );
+ return true;
}
}
/**
* Environment check for compiled object cache types.
*/
- public function envCheckCache() {
+ protected function envCheckCache() {
$caches = array();
-
foreach ( $this->objectCaches as $name => $function ) {
if ( function_exists( $function ) ) {
$caches[$name] = true;
- $this->showMessage( 'config-' . $name );
}
}
-
+
if ( !$caches ) {
$this->showMessage( 'config-no-cache' );
}
-
+
$this->setVar( '_Caches', $caches );
}
/**
* Search for GNU diff3.
*/
- public function envCheckDiff3() {
- $paths = array_merge(
- array(
- "/usr/bin",
- "/usr/local/bin",
- "/opt/csw/bin",
- "/usr/gnu/bin",
- "/usr/sfw/bin"
- ),
- explode( PATH_SEPARATOR, getenv( "PATH" ) )
- );
-
+ protected function envCheckDiff3() {
$names = array( "gdiff3", "diff3", "diff3.exe" );
- $versionInfo = array( '$1 --version 2>&1', 'diff3 (GNU diffutils)' );
-
- $haveDiff3 = false;
-
- foreach ( $paths as $path ) {
- $exe = $this->locateExecutable( $path, $names, $versionInfo );
-
- if ($exe !== false) {
- $this->setVar( 'wgDiff3', $exe );
- $haveDiff3 = true;
- break;
- }
- }
-
- if ( $haveDiff3 ) {
- $this->showMessage( 'config-diff3-good', $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.
*/
- public function envCheckGraphics() {
- $imcheck = array( "/usr/bin", "/opt/csw/bin", "/usr/local/bin", "/sw/bin", "/opt/local/bin" );
-
- foreach( $imcheck as $dir ) {
- $im = "$dir/convert";
-
- wfSuppressWarnings();
- $file_exists = file_exists( $im );
- wfRestoreWarnings();
-
- if( $file_exists ) {
- $this->showMessage( 'config-imagemagick', $im );
- $this->setVar( 'wgImageMagickConvertCommand', $im );
- return true;
- }
- }
-
- if ( function_exists( 'imagejpeg' ) ) {
+ protected function envCheckGraphics() {
+ $names = array( wfIsWindows() ? 'convert.exe' : 'convert' );
+ $convert = self::locateExecutableInDefaultPaths( $names, array( '$1 -version', 'ImageMagick' ) );
+
+ 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( 'no-scaling' );
}
-
- $this->showMessage( 'no-scaling' );
}
/**
* Environment check for setting $IP and $wgScriptPath.
*/
- public function envCheckPath() {
+ protected function envCheckPath() {
+ global $IP;
$IP = dirname( dirname( dirname( __FILE__ ) ) );
-
+
$this->setVar( 'IP', $IP );
- $this->showMessage( 'config-dir', $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
$this->showMessage( 'config-no-uri' );
return false;
}
-
+
$uri = preg_replace( '{^(.*)/config.*$}', '$1', $path );
$this->setVar( 'wgScriptPath', $uri );
- $this->showMessage( 'config-uri', $uri );
- }
-
- /**
- * Environment check for writable config/ directory.
- */
- public function envCheckWriteableDir() {
- $ipDir = $this->getVar( 'IP' );
- $configDir = $ipDir . '/config';
-
- if( !is_writeable( $configDir ) ) {
- $webserverGroup = self::maybeGetWebserverPrimaryGroup();
-
- if ( $webserverGroup !== null ) {
- $this->showMessage( 'config-dir-not-writable-group', $ipDir, $webserverGroup );
- } else {
- $this->showMessage( 'config-dir-not-writable-nogroup', $ipDir, $webserverGroup );
- }
-
- return false;
- }
}
/**
* Environment check for setting the preferred PHP file extension.
*/
- public function envCheckExtension() {
+ protected function envCheckExtension() {
// FIXME: detect this properly
if ( defined( 'MW_INSTALL_PHP5_EXT' ) ) {
$ext = 'php5';
} else {
$ext = 'php';
}
-
$this->setVar( 'wgScriptExtension', ".$ext" );
- $this->showMessage( 'config-file-extension', $ext );
}
/**
* TODO: document
*/
- public function envCheckShellLocale() {
- # Give up now if we're in safe mode or open_basedir.
- # It's theoretically possible but tricky to work with.
- if ( wfIniGetBool( "safe_mode" ) || ini_get( 'open_basedir' ) || !function_exists( 'exec' ) ) {
- return true;
- }
-
+ protected function envCheckShellLocale() {
$os = php_uname( 's' );
- $supported = array( 'Linux', 'SunOS', 'HP-UX' ); # Tested these
-
+ $supported = array( 'Linux', 'SunOS', 'HP-UX', 'Darwin' ); # Tested these
+
if ( !in_array( $os, $supported ) ) {
return true;
}
# Get a list of available locales.
- $lines = $ret = false;
- exec( '/usr/bin/locale -a', $lines, $ret );
-
+ $ret = false;
+ $lines = wfShellExec( '/usr/bin/locale -a', $ret );
+
if ( $ret ) {
return true;
}
- $lines = wfArrayMap( 'trim', $lines );
+ $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' ) );
- $this->showMessage( 'config-shell-locale', getenv( 'LANG' ) );
return true;
}
foreach ( $commonLocales as $commonLocale ) {
if ( isset( $candidatesByLocale[$commonLocale] ) ) {
$this->setVar( 'wgShellLocale', $commonLocale );
- $this->showMessage( 'config-shell-locale', $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] );
- $this->showMessage( 'config-shell-locale', $m[0] );
return true;
}
if ( count( $candidatesByLocale ) ) {
$m = reset( $candidatesByLocale );
$this->setVar( 'wgShellLocale', $m[0] );
- $this->showMessage( 'config-shell-locale', $m[0] );
return true;
}
/**
* TODO: document
*/
- public function envCheckUploadsDirectory() {
+ protected function envCheckUploadsDirectory() {
global $IP, $wgServer;
-
+
$dir = $IP . '/images/';
$url = $wgServer . $this->getVar( 'wgScriptPath' ) . '/images/';
$safe = !$this->dirIsExecutable( $dir, $url );
-
+
if ( $safe ) {
- $this->showMessage( 'config-uploads-safe' );
+ return true;
} else {
$this->showMessage( 'config-uploads-not-safe', $dir );
}
- }
-
+ }
+
+ /**
+ * 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 path
+ * 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.
*/
- protected function locateExecutable( $path, $names, $versionInfo = false ) {
+ public static function locateExecutable( $path, $names, $versionInfo = false ) {
if ( !is_array( $names ) ) {
$names = array( $names );
}
foreach ( $names as $name ) {
- $command = "$path/$name";
-
+ $command = $path . DIRECTORY_SEPARATOR . $name;
+
wfSuppressWarnings();
$file_exists = file_exists( $command );
wfRestoreWarnings();
-
+
if ( $file_exists ) {
if ( !$versionInfo ) {
return $command;
}
-
- $file = str_replace( '$1', $command, $versionInfo[0] );
-
- # Should maybe be wfShellExec( $file), but runs into a ulimit, see
- # http://www.mediawiki.org/w/index.php?title=New-installer_issues&diff=prev&oldid=335456
- if ( strstr( `$file`, $versionInfo[1]) !== false ) {
+
+ $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 ) {
"#!/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;
}
-
+
$text = Http::get( $url . $file );
unlink( $dir . $file );
-
+
if ( $text == 'exec' ) {
wfRestoreWarnings();
return $ext;
}
}
}
-
+
wfRestoreWarnings();
-
+
return false;
- }
-
-}
\ No newline at end of file
+ }
+
+}
dépôts / lhc / web / wiklou.git / blobdiff