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PK ! �P�� � GlobalDependency.phpnu �Iw�� <?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ /** * Depend on a PHP global variable. * * @deprecated since 1.42 * @ingroup Language */ class GlobalDependency extends CacheDependency { /** @var string */ private $name; /** @var mixed */ private $value; public function __construct( $name ) { $this->name = $name; $this->value = $GLOBALS[$name]; } public function isExpired() { if ( !isset( $GLOBALS[$this->name] ) ) { return true; } return $GLOBALS[$this->name] != $this->value; } } PK ! ��)�� � CacheDependency.phpnu �Iw�� <?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ /** * Base class to represent dependencies for LocalisationCache entries. * * @stable to extend * @ingroup Language */ abstract class CacheDependency { /** * Returns true if the dependency is expired, false otherwise * * @return bool */ abstract public function isExpired(); /** * Hook to perform any expensive pre-serialize loading of dependency values. * @stable to override */ public function loadDependencyValues() { } } PK ! �7�/ / FileDependency.phpnu �Iw�� <?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ use Wikimedia\AtEase\AtEase; /** * Depend on a file. * * @newable * @ingroup Language */ class FileDependency extends CacheDependency { /** @var string */ private $filename; /** @var null|false|int */ private $timestamp; /** * Create a file dependency * * @stable to call * * @param string $filename The name of the file, preferably fully qualified * @param null|false|int $timestamp The unix last modified timestamp, or false if the * file does not exist. If omitted, the timestamp will be loaded from * the file. * * A dependency on a nonexistent file will be triggered when the file is * created. A dependency on an existing file will be triggered when the * file is changed. */ public function __construct( $filename, $timestamp = null ) { $this->filename = $filename; $this->timestamp = $timestamp; } /** * @return array */ public function __sleep() { $this->loadDependencyValues(); return [ 'filename', 'timestamp' ]; } public function loadDependencyValues() { if ( $this->timestamp === null ) { AtEase::suppressWarnings(); # Dependency on a non-existent file stores "false" # This is a valid concept! $this->timestamp = filemtime( $this->filename ); AtEase::restoreWarnings(); } } public function isExpired() { AtEase::suppressWarnings(); $lastmod = filemtime( $this->filename ); AtEase::restoreWarnings(); if ( $lastmod === false ) { if ( $this->timestamp === false ) { # Still nonexistent return false; } # Deleted wfDebug( "Dependency triggered: {$this->filename} deleted." ); return true; } if ( $lastmod > $this->timestamp ) { # Modified or created wfDebug( "Dependency triggered: {$this->filename} changed." ); return true; } # Not modified return false; } } PK ! }�k� � MainConfigDependency.phpnu �Iw�� <?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ use MediaWiki\MediaWikiServices; /** * Depend on a MediaWiki configuration variable from the global config. * * @ingroup Language */ class MainConfigDependency extends CacheDependency { /** @var string */ private $name; /** @var mixed */ private $value; public function __construct( $name ) { $this->name = $name; $this->value = $this->getConfig()->get( $this->name ); } private function getConfig() { return MediaWikiServices::getInstance()->getMainConfig(); } public function isExpired() { if ( !$this->getConfig()->has( $this->name ) ) { return true; } return $this->getConfig()->get( $this->name ) != $this->value; } } PK ! ��4� � ConstantDependency.phpnu �Iw�� <?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ /** * Depend on a PHP constant. * * @ingroup Language */ class ConstantDependency extends CacheDependency { /** @var string */ private $name; /** @var mixed */ private $value; public function __construct( $name ) { $this->name = $name; $this->value = constant( $name ); } /** * @return bool */ public function isExpired() { return constant( $this->name ) != $this->value; } } PK ! ��sԺ � DependencyWrapper.phpnu �Iw�� <?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ use Wikimedia\ObjectCache\BagOStuff; /** * Store an arbitrary value whilst representing several CacheDependency objects as one. * * You should typically only use DependencyWrapper::getValueFromCache(), * rather than instantiating one of these objects directly. * * @ingroup Language */ class DependencyWrapper { /** @var mixed */ private $value; /** @var CacheDependency[] */ private $deps; /** * @param mixed $value The user-supplied value * @param CacheDependency|CacheDependency[] $deps A dependency or dependency * array. All dependencies must be objects implementing CacheDependency. */ public function __construct( $value = false, $deps = [] ) { $this->value = $value; if ( !is_array( $deps ) ) { $deps = [ $deps ]; } $this->deps = $deps; } /** * Returns true if any of the dependencies have expired * * @return bool */ public function isExpired() { foreach ( $this->deps as $dep ) { if ( $dep->isExpired() ) { return true; } } return false; } /** * Initialise dependency values in preparation for storing. This must be * called before serialization. */ public function initialiseDeps() { foreach ( $this->deps as $dep ) { $dep->loadDependencyValues(); } } /** * Get the user-defined value * @return bool|mixed */ public function getValue() { return $this->value; } /** * Store the wrapper to a cache * * @param BagOStuff $cache * @param string $key * @param int $expiry */ public function storeToCache( $cache, $key, $expiry = 0 ) { $this->initialiseDeps(); $cache->set( $key, $this, $expiry ); } /** * Attempt to get a value from the cache. If the value is expired or missing, * it will be generated with the callback function (if present), and the newly * calculated value will be stored to the cache in a wrapper. * * @param BagOStuff $cache * @param string $key The cache key * @param int $expiry The expiry timestamp or interval in seconds * @param callable|false $callback The callback for generating the value, or false * @param array $callbackParams The function parameters for the callback * @param array $deps The dependencies to store on a cache miss. Note: these * are not the dependencies used on a cache hit! Cache hits use the stored * dependency array. * * @return mixed The value, or null if it was not present in the cache and no * callback was defined. */ public static function getValueFromCache( $cache, $key, $expiry = 0, $callback = false, $callbackParams = [], $deps = [] ) { $obj = $cache->get( $key ); if ( is_object( $obj ) && $obj instanceof DependencyWrapper && !$obj->isExpired() ) { $value = $obj->value; } elseif ( $callback ) { $value = $callback( ...$callbackParams ); # Cache the newly-generated value $wrapper = new DependencyWrapper( $value, $deps ); $wrapper->storeToCache( $cache, $key, $expiry ); } else { $value = null; } return $value; } } PK ! �P�� � GlobalDependency.phpnu �Iw�� PK ! ��)�� � % CacheDependency.phpnu �Iw�� PK ! �7�/ / : FileDependency.phpnu �Iw�� PK ! }�k� � � MainConfigDependency.phpnu �Iw�� PK ! ��4� � � ConstantDependency.phpnu �Iw�� PK ! ��sԺ � z DependencyWrapper.phpnu �Iw�� PK � y.
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