/**
* @param bool|string $wiki Wiki ID
* @return JobQueueGroup
*/
public static function singleton($wiki = false)
{
$wiki = $wiki === false ? wfWikiID() : $wiki;
if (!isset(self::$instances[$wiki])) {
self::$instances[$wiki] = new self($wiki, wfConfiguredReadOnlyReason());
}
return self::$instances[$wiki];
}
/**
* @param array $lbConf Config for LBFactory::__construct()
* @param Config $mainConfig Main config object from MediaWikiServices
* @return array
*/
public static function applyDefaultConfig(array $lbConf, Config $mainConfig)
{
global $wgCommandLineMode;
$lbConf += ['localDomain' => new DatabaseDomain($mainConfig->get('DBname'), null, $mainConfig->get('DBprefix')), 'profiler' => Profiler::instance(), 'trxProfiler' => Profiler::instance()->getTransactionProfiler(), 'replLogger' => LoggerFactory::getInstance('DBReplication'), 'queryLogger' => LoggerFactory::getInstance('DBQuery'), 'connLogger' => LoggerFactory::getInstance('DBConnection'), 'perfLogger' => LoggerFactory::getInstance('DBPerformance'), 'errorLogger' => [MWExceptionHandler::class, 'logException'], 'cliMode' => $wgCommandLineMode, 'hostname' => wfHostname(), 'readOnlyReason' => wfConfiguredReadOnlyReason()];
if ($lbConf['class'] === 'LBFactorySimple') {
if (isset($lbConf['servers'])) {
// Server array is already explicitly configured; leave alone
} elseif (is_array($mainConfig->get('DBservers'))) {
foreach ($mainConfig->get('DBservers') as $i => $server) {
if ($server['type'] === 'sqlite') {
$server += ['dbDirectory' => $mainConfig->get('SQLiteDataDir')];
} elseif ($server['type'] === 'postgres') {
$server += ['port' => $mainConfig->get('DBport')];
}
$lbConf['servers'][$i] = $server + ['schema' => $mainConfig->get('DBmwschema'), 'tablePrefix' => $mainConfig->get('DBprefix'), 'flags' => DBO_DEFAULT, 'sqlMode' => $mainConfig->get('SQLMode'), 'utf8Mode' => $mainConfig->get('DBmysql5')];
}
} else {
$flags = DBO_DEFAULT;
$flags |= $mainConfig->get('DebugDumpSql') ? DBO_DEBUG : 0;
$flags |= $mainConfig->get('DBssl') ? DBO_SSL : 0;
$flags |= $mainConfig->get('DBcompress') ? DBO_COMPRESS : 0;
$server = ['host' => $mainConfig->get('DBserver'), 'user' => $mainConfig->get('DBuser'), 'password' => $mainConfig->get('DBpassword'), 'dbname' => $mainConfig->get('DBname'), 'schema' => $mainConfig->get('DBmwschema'), 'tablePrefix' => $mainConfig->get('DBprefix'), 'type' => $mainConfig->get('DBtype'), 'load' => 1, 'flags' => $flags, 'sqlMode' => $mainConfig->get('SQLMode'), 'utf8Mode' => $mainConfig->get('DBmysql5')];
if ($server['type'] === 'sqlite') {
$server['dbDirectory'] = $mainConfig->get('SQLiteDataDir');
} elseif ($server['type'] === 'postgres') {
$server['port'] = $mainConfig->get('DBport');
}
$lbConf['servers'] = [$server];
}
if (!isset($lbConf['externalClusters'])) {
$lbConf['externalClusters'] = $mainConfig->get('ExternalServers');
}
} elseif ($lbConf['class'] === 'LBFactoryMulti') {
if (isset($lbConf['serverTemplate'])) {
$lbConf['serverTemplate']['schema'] = $mainConfig->get('DBmwschema');
$lbConf['serverTemplate']['sqlMode'] = $mainConfig->get('SQLMode');
$lbConf['serverTemplate']['utf8Mode'] = $mainConfig->get('DBmysql5');
}
}
// Use APC/memcached style caching, but avoids loops with CACHE_DB (T141804)
$sCache = MediaWikiServices::getInstance()->getLocalServerObjectCache();
if ($sCache->getQoS($sCache::ATTR_EMULATION) > $sCache::QOS_EMULATION_SQL) {
$lbConf['srvCache'] = $sCache;
}
$cCache = ObjectCache::getLocalClusterInstance();
if ($cCache->getQoS($cCache::ATTR_EMULATION) > $cCache::QOS_EMULATION_SQL) {
$lbConf['memCache'] = $cCache;
}
$wCache = MediaWikiServices::getInstance()->getMainWANObjectCache();
if ($wCache->getQoS($wCache::ATTR_EMULATION) > $wCache::QOS_EMULATION_SQL) {
$lbConf['wanCache'] = $wCache;
}
return $lbConf;
}
/**
* Get an LBFactory instance
*
* @return LBFactory
*/
public static function singleton()
{
global $wgLBFactoryConf;
if (is_null(self::$instance)) {
$class = self::getLBFactoryClass($wgLBFactoryConf);
$config = $wgLBFactoryConf;
if (!isset($config['readOnlyReason'])) {
$config['readOnlyReason'] = wfConfiguredReadOnlyReason();
}
self::$instance = new $class($config);
}
return self::$instance;
}
/**
* Check if the site is in read-only mode and return the message if so
*
* This checks wfConfiguredReadOnlyReason() and the main load balancer
* for slave lag. This may result in DB_SLAVE connection being made.
*
* @return string|bool String when in read-only mode; false otherwise
*/
function wfReadOnlyReason()
{
$readOnly = wfConfiguredReadOnlyReason();
if ($readOnly !== false) {
return $readOnly;
}
static $autoReadOnly = null;
if ($autoReadOnly === null) {
// Callers use this method to be aware that data presented to a user
// may be very stale and thus allowing submissions can be problematic.
try {
if (wfGetLB()->getLaggedSlaveMode()) {
$autoReadOnly = 'The database has been automatically locked ' . 'while the slave database servers catch up to the master';
} else {
$autoReadOnly = false;
}
} catch (DBConnectionError $e) {
$autoReadOnly = 'The database has been automatically locked ' . 'until the slave database servers become available';
}
}
return $autoReadOnly;
}
/**
* Check if the site is in read-only mode and return the message if so
*
* This checks wfConfiguredReadOnlyReason() and the main load balancer
* for slave lag. This may result in DB_SLAVE connection being made.
*
* @return string|bool String when in read-only mode; false otherwise
*/
function wfReadOnlyReason()
{
$readOnly = wfConfiguredReadOnlyReason();
if ($readOnly !== false) {
return $readOnly;
}
static $lbReadOnly = null;
if ($lbReadOnly === null) {
// Callers use this method to be aware that data presented to a user
// may be very stale and thus allowing submissions can be problematic.
$lbReadOnly = wfGetLB()->getReadOnlyReason();
}
return $lbReadOnly;
}
/**
* Register file backends from the global variables
*/
protected function initFromGlobals()
{
global $wgLocalFileRepo, $wgForeignFileRepos, $wgFileBackends;
// Register explicitly defined backends
$this->register($wgFileBackends, wfConfiguredReadOnlyReason());
$autoBackends = array();
// Automatically create b/c backends for file repos...
$repos = array_merge($wgForeignFileRepos, array($wgLocalFileRepo));
foreach ($repos as $info) {
$backendName = $info['backend'];
if (is_object($backendName) || isset($this->backends[$backendName])) {
continue;
// already defined (or set to the object for some reason)
}
$repoName = $info['name'];
// Local vars that used to be FSRepo members...
$directory = $info['directory'];
$deletedDir = isset($info['deletedDir']) ? $info['deletedDir'] : false;
// deletion disabled
$thumbDir = isset($info['thumbDir']) ? $info['thumbDir'] : "{$directory}/thumb";
$transcodedDir = isset($info['transcodedDir']) ? $info['transcodedDir'] : "{$directory}/transcoded";
$fileMode = isset($info['fileMode']) ? $info['fileMode'] : 0644;
// Get the FS backend configuration
$autoBackends[] = array('name' => $backendName, 'class' => 'FSFileBackend', 'lockManager' => 'fsLockManager', 'containerPaths' => array("{$repoName}-public" => "{$directory}", "{$repoName}-thumb" => $thumbDir, "{$repoName}-transcoded" => $transcodedDir, "{$repoName}-deleted" => $deletedDir, "{$repoName}-temp" => "{$directory}/temp"), 'fileMode' => $fileMode);
}
// Register implicitly defined backends
$this->register($autoBackends, wfConfiguredReadOnlyReason());
}
* much of the code still relies on global state for this accessing services.
*
* @since 1.27
*
* @see docs/injection.txt for an overview of using dependency injection in the
* MediaWiki code base.
*/
use MediaWiki\Interwiki\ClassicInterwikiLookup;
use MediaWiki\Linker\LinkRendererFactory;
use MediaWiki\MediaWikiServices;
return ['DBLoadBalancerFactory' => function (MediaWikiServices $services) {
$config = $services->getMainConfig()->get('LBFactoryConf');
$class = LBFactory::getLBFactoryClass($config);
if (!isset($config['readOnlyReason'])) {
// TODO: replace the global wfConfiguredReadOnlyReason() with a service.
$config['readOnlyReason'] = wfConfiguredReadOnlyReason();
}
return new $class($config);
}, 'DBLoadBalancer' => function (MediaWikiServices $services) {
// just return the default LB from the DBLoadBalancerFactory service
return $services->getDBLoadBalancerFactory()->getMainLB();
}, 'SiteStore' => function (MediaWikiServices $services) {
$rawSiteStore = new DBSiteStore($services->getDBLoadBalancer());
// TODO: replace wfGetCache with a CacheFactory service.
// TODO: replace wfIsHHVM with a capabilities service.
$cache = wfGetCache(wfIsHHVM() ? CACHE_ACCEL : CACHE_ANYTHING);
return new CachingSiteStore($rawSiteStore, $cache);
}, 'SiteLookup' => function (MediaWikiServices $services) {
// Use the default SiteStore as the SiteLookup implementation for now
return $services->getSiteStore();
}, 'ConfigFactory' => function (MediaWikiServices $services) {
