From d9022f63880ce039446fba8364f68e656b7bf4cb Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Thu, 3 May 2012 13:01:35 +0200
Subject: Update to MediaWiki 1.19.0

---
 includes/context/ContextSource.php     | 170 ++++++++++++++
 includes/context/DerivativeContext.php | 286 +++++++++++++++++++++++
 includes/context/IContextSource.php    | 110 +++++++++
 includes/context/RequestContext.php    | 398 +++++++++++++++++++++++++++++++++
 4 files changed, 964 insertions(+)
 create mode 100644 includes/context/ContextSource.php
 create mode 100644 includes/context/DerivativeContext.php
 create mode 100644 includes/context/IContextSource.php
 create mode 100644 includes/context/RequestContext.php

(limited to 'includes/context')

diff --git a/includes/context/ContextSource.php b/includes/context/ContextSource.php
new file mode 100644
index 00000000..45bd6fff
--- /dev/null
+++ b/includes/context/ContextSource.php
@@ -0,0 +1,170 @@
+<?php
+/**
+ * Request-dependant objects containers.
+ *
+ * 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
+ *
+ * @since 1.18
+ *
+ * @author Happy-melon
+ * @file
+ */
+
+/**
+ * The simplest way of implementing IContextSource is to hold a RequestContext as a
+ * member variable and provide accessors to it.
+ */
+abstract class ContextSource implements IContextSource {
+
+	/**
+	 * @var IContextSource
+	 */
+	private $context;
+
+	/**
+	 * Get the RequestContext object
+	 * @since 1.18
+	 * @return RequestContext
+	 */
+	public function getContext() {
+		if ( $this->context === null ) {
+			$class = get_class( $this );
+			wfDebug( __METHOD__  . " ($class): called and \$context is null. Using RequestContext::getMain() for sanity\n" );
+			$this->context = RequestContext::getMain();
+		}
+		return $this->context;
+	}
+
+	/**
+	 * Set the IContextSource object
+	 *
+	 * @since 1.18
+	 * @param $context IContextSource
+	 */
+	public function setContext( IContextSource $context ) {
+		$this->context = $context;
+	}
+
+	/**
+	 * Get the WebRequest object
+	 *
+	 * @since 1.18
+	 * @return WebRequest
+	 */
+	public function getRequest() {
+		return $this->getContext()->getRequest();
+	}
+
+	/**
+	 * Get the Title object
+	 *
+	 * @since 1.18
+	 * @return Title
+	 */
+	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
+	 * @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
+	 * @return WikiPage
+	 */
+	public function getWikiPage() {
+		return $this->getContext()->getWikiPage();
+	}
+
+	/**
+	 * Get the OutputPage object
+	 *
+	 * @since 1.18
+	 * @return OutputPage object
+	 */
+	public function getOutput() {
+		return $this->getContext()->getOutput();
+	}
+
+	/**
+	 * Get the User object
+	 *
+	 * @since 1.18
+	 * @return User
+	 */
+	public function getUser() {
+		return $this->getContext()->getUser();
+	}
+
+	/**
+	 * Get the Language object
+	 *
+	 * @deprecated 1.19 Use getLanguage instead
+	 * @return Language
+	 */
+	public function getLang() {
+		wfDeprecated( __METHOD__, '1.19' );
+		return $this->getLanguage();
+	}
+
+	/**
+	 * Get the Language object
+	 *
+	 * @since 1.19
+	 * @return Language
+	 */
+	public function getLanguage() {
+		return $this->getContext()->getLanguage();
+	}
+
+	/**
+	 * Get the Skin object
+	 *
+	 * @since 1.18
+	 * @return Skin
+	 */
+	public function getSkin() {
+		return $this->getContext()->getSkin();
+	}
+
+	/**
+	 * Get a Message object with context set
+	 * Parameters are the same as wfMessage()
+	 *
+	 * @since 1.18
+	 * @return Message object
+	 */
+	public function msg( /* $args */ ) {
+		$args = func_get_args();
+		return call_user_func_array( array( $this->getContext(), 'msg' ), $args );
+	}
+	
+}
+
diff --git a/includes/context/DerivativeContext.php b/includes/context/DerivativeContext.php
new file mode 100644
index 00000000..5adf3621
--- /dev/null
+++ b/includes/context/DerivativeContext.php
@@ -0,0 +1,286 @@
+<?php
+/**
+ * Request-dependant objects containers.
+ *
+ * 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
+ *
+ * @since 1.19
+ *
+ * @author Daniel Friesen
+ * @file
+ */
+
+/**
+ * An IContextSource implementation which will inherit context from another source
+ * but allow individual pieces of context to be changed locally
+ * eg: A ContextSource that can inherit from the main RequestContext but have
+ *     a different Title instance set on it.
+ */
+class DerivativeContext extends ContextSource {
+
+	/**
+	 * @var WebRequest
+	 */
+	private $request;
+
+	/**
+	 * @var Title
+	 */
+	private $title;
+
+	/**
+	 * @var WikiPage
+	 */
+	private $wikipage;
+
+	/**
+	 * @var OutputPage
+	 */
+	private $output;
+
+	/**
+	 * @var User
+	 */
+	private $user;
+
+	/**
+	 * @var Language
+	 */
+	private $lang;
+
+	/**
+	 * @var Skin
+	 */
+	private $skin;
+
+	/**
+	 * Constructor
+	 * @param $context IContextSource Context to inherit from
+	 */
+	public function __construct( IContextSource $context ) {
+		$this->setContext( $context );
+	}
+
+	/**
+	 * Set the WebRequest object
+	 *
+	 * @param $r WebRequest object
+	 */
+	public function setRequest( WebRequest $r ) {
+		$this->request = $r;
+	}
+
+	/**
+	 * Get the WebRequest object
+	 *
+	 * @return WebRequest
+	 */
+	public function getRequest() {
+		if ( !is_null( $this->request ) ) {
+			return $this->request;
+		} else {
+			return $this->getContext()->getRequest();
+		}
+	}
+
+	/**
+	 * Set the Title object
+	 *
+	 * @param $t Title object
+	 */
+	public function setTitle( Title $t ) {
+		$this->title = $t;
+	}
+
+	/**
+	 * Get the Title object
+	 *
+	 * @return Title
+	 */
+	public function getTitle() {
+		if ( !is_null( $this->title ) ) {
+			return $this->title;
+		} else {
+			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
+	 * @return bool
+	 */
+	public function canUseWikiPage() {
+		if ( $this->wikipage !== null ) {
+			return true;
+		} elseif ( $this->title !== null ) {
+			return $this->title->canExist();
+		} else {
+			return $this->getContext()->canUseWikiPage();
+		}
+	}
+
+	/**
+	 * Set the WikiPage object
+	 *
+	 * @since 1.19
+	 * @param $p WikiPage object
+	 */
+	public function setWikiPage( WikiPage $p ) {
+		$this->wikipage = $p;
+	}
+
+	/**
+	 * 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
+	 * @return WikiPage
+	 */
+	public function getWikiPage() {
+		if ( !is_null( $this->wikipage ) ) {
+			return $this->wikipage;
+		} else {
+			return $this->getContext()->getWikiPage();
+		}
+	}
+
+	/**
+	 * Set the OutputPage object
+	 *
+	 * @param $o OutputPage
+	 */
+	public function setOutput( OutputPage $o ) {
+		$this->output = $o;
+	}
+
+	/**
+	 * Get the OutputPage object
+	 *
+	 * @return OutputPage object
+	 */
+	public function getOutput() {
+		if ( !is_null( $this->output ) ) {
+			return $this->output;
+		} else {
+			return $this->getContext()->getOutput();
+		}
+	}
+
+	/**
+	 * Set the User object
+	 *
+	 * @param $u User
+	 */
+	public function setUser( User $u ) {
+		$this->user = $u;
+	}
+
+	/**
+	 * Get the User object
+	 *
+	 * @return User
+	 */
+	public function getUser() {
+		if ( !is_null( $this->user ) ) {
+			return $this->user;
+		} else {
+			return $this->getContext()->getUser();
+		}
+	}
+
+	/**
+	 * Set the Language object
+	 *
+	 * @deprecated 1.19 Use setLanguage instead
+	 * @param $l Mixed Language instance or language code
+	 */
+	public function setLang( $l ) {
+		wfDeprecated( __METHOD__, '1.19' );
+		$this->setLanguage( $l );
+	}
+
+	/**
+	 * Set the Language object
+	 *
+	 * @param $l Mixed Language instance or language code
+	 * @since 1.19
+	 */
+	public function setLanguage( $l ) {
+		if ( $l instanceof Language ) {
+			$this->lang = $l;
+		} elseif ( is_string( $l ) ) {
+			$l = RequestContext::sanitizeLangCode( $l );
+			$obj = Language::factory( $l );
+			$this->lang = $obj;
+		} else {
+			throw new MWException( __METHOD__ . " was passed an invalid type of data." );
+		}
+	}
+
+	/**
+	 * @deprecated 1.19 Use getLanguage instead
+	 * @return Language
+	 */
+	public function getLang() {
+		wfDeprecated( __METHOD__, '1.19' );
+		$this->getLanguage();
+	}
+
+	/**
+	 * Get the Language object
+	 *
+	 * @return Language
+	 * @since 1.19
+	 */
+	public function getLanguage() {
+		if ( !is_null( $this->lang ) ) {
+			return $this->lang;
+		} else {
+			return $this->getContext()->getLanguage();
+		}
+	}
+
+	/**
+	 * Set the Skin object
+	 *
+	 * @param $s Skin
+	 */
+	public function setSkin( Skin $s ) {
+		$this->skin = clone $s;
+		$this->skin->setContext( $this );
+	}
+
+	/**
+	 * Get the Skin object
+	 *
+	 * @return Skin
+	 */
+	public function getSkin() {
+		if ( !is_null( $this->skin ) ) {
+			return $this->skin;
+		} else {
+			return $this->getContext()->getSkin();
+		}
+	}
+
+}
+
diff --git a/includes/context/IContextSource.php b/includes/context/IContextSource.php
new file mode 100644
index 00000000..476035b5
--- /dev/null
+++ b/includes/context/IContextSource.php
@@ -0,0 +1,110 @@
+<?php
+/**
+ * Request-dependant objects containers.
+ *
+ * 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
+ *
+ * @since 1.18
+ *
+ * @author Happy-melon
+ * @file
+ */
+
+/**
+ * Interface for objects which can provide a context on request.
+ */
+interface IContextSource {
+
+	/**
+	 * Get the WebRequest object
+	 *
+	 * @return WebRequest
+	 */
+	public function getRequest();
+
+	/**
+	 * Get the Title object
+	 *
+	 * @return Title
+	 */
+	public function 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
+	 * @return bool
+	 */
+	public function 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
+	 * @return WikiPage
+	 */
+	public function getWikiPage();
+
+	/**
+	 * Get the OutputPage object
+	 *
+	 * @return OutputPage object
+	 */
+	public function getOutput();
+
+	/**
+	 * Get the User object
+	 *
+	 * @return User
+	 */
+	public function getUser();
+
+	/**
+	 * Get the Language object
+	 *
+	 * @deprecated 1.19 Use getLanguage instead
+	 * @return Language
+	 */
+	public function getLang();
+
+	/**
+	 * Get the Language object
+	 *
+	 * @return Language
+	 * @since 1.19
+	 */
+	public function getLanguage();
+
+	/**
+	 * Get the Skin object
+	 *
+	 * @return Skin
+	 */
+	public function getSkin();
+
+	/**
+	 * Get a Message object with context set
+	 *
+	 * @return Message object
+	 */
+	public function msg();
+}
+
diff --git a/includes/context/RequestContext.php b/includes/context/RequestContext.php
new file mode 100644
index 00000000..1ffbc08c
--- /dev/null
+++ b/includes/context/RequestContext.php
@@ -0,0 +1,398 @@
+<?php
+/**
+ * Request-dependant objects containers.
+ *
+ * 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
+ *
+ * @since 1.18
+ *
+ * @author Alexandre Emsenhuber
+ * @author Daniel Friesen
+ * @file
+ */
+
+/**
+ * Group all the pieces relevant to the context of a request into one instance
+ */
+class RequestContext implements IContextSource {
+
+	/**
+	 * @var WebRequest
+	 */
+	private $request;
+
+	/**
+	 * @var Title
+	 */
+	private $title;
+
+	/**
+	 * @var WikiPage
+	 */
+	private $wikipage;
+
+	/**
+	 * @var OutputPage
+	 */
+	private $output;
+
+	/**
+	 * @var User
+	 */
+	private $user;
+
+	/**
+	 * @var Language
+	 */
+	private $lang;
+
+	/**
+	 * @var Skin
+	 */
+	private $skin;
+
+	/**
+	 * Set the WebRequest object
+	 *
+	 * @param $r WebRequest object
+	 */
+	public function setRequest( WebRequest $r ) {
+		$this->request = $r;
+	}
+
+	/**
+	 * Get the WebRequest object
+	 *
+	 * @return WebRequest
+	 */
+	public function getRequest() {
+		if ( $this->request === null ) {
+			global $wgRequest; # fallback to $wg till we can improve this
+			$this->request = $wgRequest;
+		}
+		return $this->request;
+	}
+
+	/**
+	 * Set the Title object
+	 *
+	 * @param $t Title object
+	 */
+	public function setTitle( Title $t ) {
+		$this->title = $t;
+	}
+
+	/**
+	 * Get the Title object
+	 *
+	 * @return Title
+	 */
+	public function getTitle() {
+		if ( $this->title === null ) {
+			global $wgTitle; # fallback to $wg till we can improve this
+			$this->title = $wgTitle;
+		}
+		return $this->title;
+	}
+
+	/**
+	 * 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
+	 * @return bool
+	 */
+	public function canUseWikiPage() {
+		if ( $this->wikipage !== null ) {
+			# If there's a WikiPage object set, we can for sure get it
+			return true;
+		}
+		$title = $this->getTitle();
+		if ( $title === null ) {
+			# No Title, no WikiPage
+			return false;
+		} else {
+			# Only namespaces whose pages are stored in the database can have WikiPage
+			return $title->canExist();
+		}
+	}
+
+	/**
+	 * Set the WikiPage object
+	 *
+	 * @since 1.19
+	 * @param $p WikiPage object
+	 */
+	public function setWikiPage( WikiPage $p ) {
+		$this->wikipage = $p;
+	}
+
+	/**
+	 * 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
+	 * @return WikiPage
+	 */
+	public function getWikiPage() {
+		if ( $this->wikipage === null ) {
+			$title = $this->getTitle();
+			if ( $title === null ) {
+				throw new MWException( __METHOD__ . ' called without Title object set' );
+			}
+			$this->wikipage = WikiPage::factory( $title );
+		}
+		return $this->wikipage;
+	}
+
+	/**
+	 * @param $o OutputPage
+	 */
+	public function setOutput( OutputPage $o ) {
+		$this->output = $o;
+	}
+
+	/**
+	 * Get the OutputPage object
+	 *
+	 * @return OutputPage object
+	 */
+	public function getOutput() {
+		if ( $this->output === null ) {
+			$this->output = new OutputPage( $this );
+		}
+		return $this->output;
+	}
+
+	/**
+	 * Set the User object
+	 *
+	 * @param $u User
+	 */
+	public function setUser( User $u ) {
+		$this->user = $u;
+	}
+
+	/**
+	 * Get the User object
+	 *
+	 * @return User
+	 */
+	public function getUser() {
+		if ( $this->user === null ) {
+			$this->user = User::newFromSession( $this->getRequest() );
+		}
+		return $this->user;
+	}
+
+	/**
+	 * Accepts a language code and ensures it's sane. Outputs a cleaned up language
+	 * code and replaces with $wgLanguageCode if not sane.
+	 * @param $code string
+	 * @return string
+	 */
+	public static function sanitizeLangCode( $code ) {
+		global $wgLanguageCode;
+
+		// BCP 47 - letter case MUST NOT carry meaning
+		$code = strtolower( $code );
+
+		# Validate $code
+		if( empty( $code ) || !Language::isValidCode( $code ) || ( $code === 'qqq' ) ) {
+			wfDebug( "Invalid user language code\n" );
+			$code = $wgLanguageCode;
+		}
+
+		return $code;
+	}
+
+	/**
+	 * Set the Language object
+	 *
+	 * @deprecated 1.19 Use setLanguage instead
+	 * @param $l Mixed Language instance or language code
+	 */
+	public function setLang( $l ) {
+		wfDeprecated( __METHOD__, '1.19' );
+		$this->setLanguage( $l );
+	}
+
+	/**
+	 * Set the Language object
+	 *
+	 * @param $l Mixed Language instance or language code
+	 * @since 1.19
+	 */
+	public function setLanguage( $l ) {
+		if ( $l instanceof Language ) {
+			$this->lang = $l;
+		} elseif ( is_string( $l ) ) {
+			$l = self::sanitizeLangCode( $l );
+			$obj = Language::factory( $l );
+			$this->lang = $obj;
+		} else {
+			throw new MWException( __METHOD__ . " was passed an invalid type of data." );
+		}
+	}
+
+	/**
+	 * @deprecated 1.19 Use getLanguage instead
+	 * @return Language
+	 */
+	public function getLang() {
+		wfDeprecated( __METHOD__, '1.19' );
+		return $this->getLanguage();
+	}
+
+	/**
+	 * Get the Language object
+	 *
+	 * @return Language
+	 * @since 1.19
+	 */
+	public function getLanguage() {
+		if ( $this->lang === null ) {
+			global $wgLanguageCode, $wgContLang;
+			$code = $this->getRequest()->getVal(
+				'uselang',
+				$this->getUser()->getOption( 'language' )
+			);
+			$code = self::sanitizeLangCode( $code );
+
+			wfRunHooks( 'UserGetLanguageObject', array( $this->getUser(), &$code ) );
+
+			if( $code === $wgLanguageCode ) {
+				$this->lang = $wgContLang;
+			} else {
+				$obj = Language::factory( $code );
+				$this->lang = $obj;
+			}
+		}
+		return $this->lang;
+	}
+
+	/**
+	 * Set the Skin object
+	 *
+	 * @param $s Skin
+	 */
+	public function setSkin( Skin $s ) {
+		$this->skin = clone $s;
+		$this->skin->setContext( $this );
+	}
+
+	/**
+	 * Get the Skin object
+	 *
+	 * @return Skin
+	 */
+	public function getSkin() {
+		if ( $this->skin === null ) {
+			wfProfileIn( __METHOD__ . '-createskin' );
+			
+			$skin = null;
+			wfRunHooks( 'RequestContextCreateSkin', array( $this, &$skin ) );
+
+			// If the hook worked try to set a skin from it
+			if ( $skin instanceof Skin ) {
+				$this->skin = $skin;
+			} elseif ( is_string($skin) ) {
+				$this->skin = Skin::newFromKey( $skin );
+			}
+
+			// If this is still null (the hook didn't run or didn't work)
+			// then go through the normal processing to load a skin
+			if ( $this->skin === null ) {
+				global $wgHiddenPrefs;
+				if( !in_array( 'skin', $wgHiddenPrefs ) ) {
+					# get the user skin
+					$userSkin = $this->getUser()->getOption( 'skin' );
+					$userSkin = $this->getRequest()->getVal( 'useskin', $userSkin );
+				} else {
+					# if we're not allowing users to override, then use the default
+					global $wgDefaultSkin;
+					$userSkin = $wgDefaultSkin;
+				}
+
+				$this->skin = Skin::newFromKey( $userSkin );
+			}
+
+			// After all that set a context on whatever skin got created
+			$this->skin->setContext( $this );
+			wfProfileOut( __METHOD__ . '-createskin' );
+		}
+		return $this->skin;
+	}
+
+	/** Helpful methods **/
+
+	/**
+	 * Get a Message object with context set
+	 * Parameters are the same as wfMessage()
+	 *
+	 * @return Message object
+	 */
+	public function msg() {
+		$args = func_get_args();
+		return call_user_func_array( 'wfMessage', $args )->setContext( $this );
+	}
+
+	/** Static methods **/
+
+	/**
+	 * Get the RequestContext object associated with the main request
+	 *
+	 * @return RequestContext object
+	 */
+	public static function getMain() {
+		static $instance = null;
+		if ( $instance === null ) {
+			$instance = new self;
+		}
+		return $instance;
+	}
+
+	/**
+	 * Create a new extraneous context. The context is filled with information
+	 * external to the current session.
+	 * - Title is specified by argument
+	 * - Request is a FauxRequest, or a FauxRequest can be specified by argument
+	 * - User is an anonymous user, for separation IPv4 localhost is used
+	 * - Language will be based on the anonymous user and request, may be content
+	 *   language or a uselang param in the fauxrequest data may change the lang
+	 * - Skin will be based on the anonymous user, should be the wiki's default skin
+	 *
+	 * @param $title Title Title to use for the extraneous request
+	 * @param $request Mixed A WebRequest or data to use for a FauxRequest
+	 * @return RequestContext
+	 */
+	public static function newExtraneousContext( Title $title, $request=array() ) {
+		$context = new self;
+		$context->setTitle( $title );
+		if ( $request instanceof WebRequest ) {
+			$context->setRequest( $request );
+		} else {
+			$context->setRequest( new FauxRequest( $request ) );
+		}
+		$context->user = User::newFromName( '127.0.0.1', false );
+		return $context;
+	}
+
+}
+
-- 
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