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<?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
*/
namespace MediaWiki\Context;
use MediaWiki\Config\Config;
use MediaWiki\Language\Language;
use MediaWiki\Message\Message;
use MediaWiki\Output\OutputPage;
use MediaWiki\Page\WikiPage;
use MediaWiki\Permissions\Authority;
use MediaWiki\Request\WebRequest;
use MediaWiki\Session\CsrfTokenSet;
use MediaWiki\Skin\Skin;
use MediaWiki\Title\Title;
use MediaWiki\User\User;
use Wikimedia\Bcp47Code\Bcp47Code;
use Wikimedia\Message\MessageParam;
use Wikimedia\Message\MessageSpecifier;
use Wikimedia\NonSerializable\NonSerializableTrait;
use Wikimedia\Timing\Timing;
/**
* The simplest way of implementing IContextSource is to hold a RequestContext as a
* member variable and provide accessors to it.
*
* @stable to extend
* @since 1.18
* @author Happy-melon
*/
abstract class ContextSource implements IContextSource {
use NonSerializableTrait;
/**
* @var IContextSource
*/
private $context;
/**
* Get the base IContextSource object
* @since 1.18
* @stable to override
* @return IContextSource
*/
public function getContext() {
if ( $this->context === null ) {
$class = static::class;
wfDebug( __METHOD__ . " ($class): called and \$context is null. " .
"Using RequestContext::getMain()" );
$this->context = RequestContext::getMain();
}
return $this->context;
}
/**
* @since 1.18
* @stable to override
* @param IContextSource $context
*/
public function setContext( IContextSource $context ) {
$this->context = $context;
}
/**
* @since 1.23
* @stable to override
* @return Config
*/
public function getConfig() {
return $this->getContext()->getConfig();
}
/**
* @since 1.18
* @stable to override
* @return WebRequest
*/
public function getRequest() {
return $this->getContext()->getRequest();
}
/**
* @since 1.18
* @stable to override
* @return Title|null
*/
public function getTitle() {
return $this->getContext()->getTitle();
}
/**
* Check whether a WikiPage object can be get with getWikiPage().
* Callers should expect that an exception is thrown from getWikiPage()
* if this method returns false.
*
* @since 1.19
* @stable to override
* @return bool
*/
public function canUseWikiPage() {
return $this->getContext()->canUseWikiPage();
}
/**
* Get the WikiPage object.
* May throw an exception if there's no Title object set or the Title object
* belongs to a special namespace that doesn't have WikiPage, so use first
* canUseWikiPage() to check whether this method can be called safely.
*
* @since 1.19
* @stable to override
* @return WikiPage
*/
public function getWikiPage() {
return $this->getContext()->getWikiPage();
}
/**
* Get the action name for the current web request.
*
* @since 1.38
* @stable to override
* @return string
*/
public function getActionName(): string {
return $this->getContext()->getActionName();
}
/**
* @since 1.18
* @stable to override
* @return OutputPage
*/
public function getOutput() {
return $this->getContext()->getOutput();
}
/**
* @stable to override
* @since 1.18
* @stable to override
* @return User
*/
public function getUser() {
return $this->getContext()->getUser();
}
/**
* @since 1.36
* @return Authority
*/
public function getAuthority(): Authority {
return $this->getContext()->getAuthority();
}
/**
* @since 1.19
* @stable to override
* @return Language
*/
public function getLanguage() {
return $this->getContext()->getLanguage();
}
/**
* @since 1.42
* @stable to override
* @note When overriding, keep consistent with getLanguage()!
* @return Bcp47Code
*/
public function getLanguageCode(): Bcp47Code {
return $this->getLanguage();
}
/**
* @since 1.18
* @stable to override
* @return Skin
*/
public function getSkin() {
return $this->getContext()->getSkin();
}
/**
* @since 1.27
* @stable to override
* @return Timing
*/
public function getTiming() {
return $this->getContext()->getTiming();
}
/**
* Get a Message object with context set
* Parameters are the same as wfMessage()
*
* @since 1.18
* @stable to override
* @param string|string[]|MessageSpecifier $key Message key, or array of keys,
* or a MessageSpecifier.
* @phpcs:ignore Generic.Files.LineLength
* @param MessageParam|MessageSpecifier|string|int|float|list<MessageParam|MessageSpecifier|string|int|float> ...$params
* See Message::params()
* @return Message
*/
public function msg( $key, ...$params ) {
return $this->getContext()->msg( $key, ...$params );
}
/**
* Export the resolved user IP, HTTP headers, user ID, and session ID.
* The result will be reasonably sized to allow for serialization.
*
* @since 1.21
* @stable to override
* @return array
*/
public function exportSession() {
return $this->getContext()->exportSession();
}
/**
* Get a repository to obtain and match CSRF tokens.
*
* @return CsrfTokenSet
* @since 1.37
*/
public function getCsrfTokenSet(): CsrfTokenSet {
return $this->getContext()->getCsrfTokenSet();
}
}
/** @deprecated class alias since 1.42 */
class_alias( ContextSource::class, 'ContextSource' );