first commit

118 files changed, 3441 insertions, 0 deletions

diff --git a/www/wiki/extensions/LocalisationUpdate/Autoload.php b/www/wiki/extensions/LocalisationUpdate/Autoload.php
new file mode 100644
index 00000000..8be7124a
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/Autoload.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+$dir = __DIR__;
+
+$GLOBALS['wgAutoloadClasses']['LocalisationUpdate'] = "$dir/LocalisationUpdate.class.php";
+$GLOBALS['wgAutoloadClasses']['LU_Updater'] = "$dir/Updater.php";
+$GLOBALS['wgAutoloadClasses']['QuickArrayReader'] = "$dir/QuickArrayReader.php";
+
+# fetcher
+$GLOBALS['wgAutoloadClasses']['LU_Fetcher'] = "$dir/fetcher/Fetcher.php";
+$GLOBALS['wgAutoloadClasses']['LU_FetcherFactory'] = "$dir/fetcher/FetcherFactory.php";
+$GLOBALS['wgAutoloadClasses']['LU_FileSystemFetcher'] = "$dir/fetcher/FileSystemFetcher.php";
+$GLOBALS['wgAutoloadClasses']['LU_GitHubFetcher'] = "$dir/fetcher/GitHubFetcher.php";
+$GLOBALS['wgAutoloadClasses']['LU_HttpFetcher'] = "$dir/fetcher/HttpFetcher.php";
+
+# finder
+$GLOBALS['wgAutoloadClasses']['LU_Finder'] = "$dir/finder/Finder.php";
+
+# reader
+$GLOBALS['wgAutoloadClasses']['LU_JSONReader'] = "$dir/reader/JSONReader.php";
+$GLOBALS['wgAutoloadClasses']['LU_PHPReader'] = "$dir/reader/PHPReader.php";
+$GLOBALS['wgAutoloadClasses']['LU_Reader'] = "$dir/reader/Reader.php";
+$GLOBALS['wgAutoloadClasses']['LU_ReaderFactory'] = "$dir/reader/ReaderFactory.php";
diff --git a/www/wiki/extensions/LocalisationUpdate/CODE_OF_CONDUCT.md b/www/wiki/extensions/LocalisationUpdate/CODE_OF_CONDUCT.md
new file mode 100644
index 00000000..d8e5d087
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/CODE_OF_CONDUCT.md
@@ -0,0 +1 @@
+The development of this software is covered by a [Code of Conduct](https://www.mediawiki.org/wiki/Code_of_Conduct).
diff --git a/www/wiki/extensions/LocalisationUpdate/COPYING b/www/wiki/extensions/LocalisationUpdate/COPYING
new file mode 100644
index 00000000..d159169d
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/COPYING
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
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+
+  Finally, any free program is threatened constantly by software
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+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
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+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
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+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
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+These requirements apply to the modified work as a whole.  If
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+Thus, it is not the intent of this section to claim rights or contest
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+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
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+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
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+    a) Accompany it with the complete corresponding machine-readable
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+  6. Each time you redistribute the Program (or any work based on the
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+infringement or for any other reason (not limited to patent issues),
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+If any portion of this section is held invalid or unenforceable under
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+to distribute software through any other system and a licensee cannot
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+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
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+countries not thus excluded.  In such case, this License incorporates
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+
+  9. The Free Software Foundation may publish revised and/or new versions
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+be similar in spirit to the present version, but may differ in detail to
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+
+Each version is given a distinguishing version number.  If the Program
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+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+make exceptions for this.  Our decision will be guided by the two goals
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+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
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+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/www/wiki/extensions/LocalisationUpdate/Gruntfile.js b/www/wiki/extensions/LocalisationUpdate/Gruntfile.js
new file mode 100644
index 00000000..26ca0c16
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/Gruntfile.js
@@ -0,0 +1,28 @@
+/*jshint node:true */
+module.exports = function ( grunt ) {
+	grunt.loadNpmTasks( 'grunt-banana-checker' );
+	grunt.loadNpmTasks( 'grunt-jsonlint' );
+	grunt.loadNpmTasks( 'grunt-contrib-jshint' );
+
+	var conf = grunt.file.readJSON( 'extension.json' );
+	grunt.initConfig( {
+		banana: conf.MessagesDirs,
+		jshint: {
+			all: [
+				'**/*.js',
+				'!node_modules/**',
+				'!vendor/**'
+			]
+		},
+		jsonlint: {
+			all: [
+				'**/*.json',
+				'!node_modules/**',
+				'!vendor/**'
+			]
+		}
+	} );
+
+	grunt.registerTask( 'test', [ 'jsonlint', 'banana', 'jshint' ] );
+	grunt.registerTask( 'default', 'test' );
+};
diff --git a/www/wiki/extensions/LocalisationUpdate/LocalisationUpdate.class.php b/www/wiki/extensions/LocalisationUpdate/LocalisationUpdate.class.php
new file mode 100644
index 00000000..af020db0
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/LocalisationUpdate.class.php
@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * Class for localization update hooks and static methods.
+ */
+class LocalisationUpdate {
+	/**
+	 * Hook: LocalisationCacheRecacheFallback
+	 */
+	public static function onRecacheFallback( LocalisationCache $lc, $code, array &$cache ) {
+		$dir = self::getDirectory();
+		if ( !$dir ) {
+			return true;
+		}
+
+		$fileName = "$dir/" . self::getFilename( $code );
+		if ( is_readable( $fileName ) ) {
+			$data = FormatJson::decode( file_get_contents( $fileName ), true );
+			$cache['messages'] = array_merge( $cache['messages'], $data );
+		}
+
+		return true;
+	}
+
+	/**
+	 * Hook: LocalisationCacheRecache
+	 */
+	public static function onRecache( LocalisationCache $lc, $code, array &$cache ) {
+		$dir = self::getDirectory();
+		if ( !$dir ) {
+			return true;
+		}
+
+		$codeSequence = array_merge( [ $code ], $cache['fallbackSequence'] );
+		foreach ( $codeSequence as $csCode ) {
+			$fileName = "$dir/" . self::getFilename( $csCode );
+			$cache['deps'][] = new FileDependency( $fileName );
+		}
+
+		return true;
+	}
+
+	/**
+	 * Returns a directory where updated translations are stored.
+	 *
+	 * @return string|false False if not configured.
+	 * @since 1.1
+	 */
+	public static function getDirectory() {
+		global $wgLocalisationUpdateDirectory, $wgCacheDirectory;
+
+		return $wgLocalisationUpdateDirectory ?: $wgCacheDirectory;
+	}
+
+	/**
+	 * Returns a filename where updated translations are stored.
+	 *
+	 * @param string $language Language tag
+	 * @return string
+	 * @since 1.1
+	 */
+	public static function getFilename( $language ) {
+		return "l10nupdate-$language.json";
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/LocalisationUpdate.php b/www/wiki/extensions/LocalisationUpdate/LocalisationUpdate.php
new file mode 100644
index 00000000..45899688
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/LocalisationUpdate.php
@@ -0,0 +1,15 @@
+<?php
+
+if ( function_exists( 'wfLoadExtension' ) ) {
+	wfLoadExtension( 'LocalisationUpdate' );
+	// Keep i18n globals so mergeMessageFileList.php doesn't break
+	$GLOBALS['wgMessagesDirs']['LocalisationUpdate'] = __DIR__ . '/i18n';
+	wfWarn(
+		'Deprecated PHP entry point used for LocalisationUpdate extension. ' .
+		'Please use wfLoadExtension instead, ' .
+		'see https://www.mediawiki.org/wiki/Extension_registration for more details.'
+	);
+	return;
+} else {
+	die( 'This version of the LocalisationUpdate extension requires MediaWiki 1.25+' );
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/QuickArrayReader.php b/www/wiki/extensions/LocalisationUpdate/QuickArrayReader.php
new file mode 100644
index 00000000..d8b7972b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/QuickArrayReader.php
@@ -0,0 +1,214 @@
+<?php
+
+/**
+ * Quickie parser class that can happily read the subset of PHP we need
+ * for our localization arrays safely.
+ *
+ * Still an order of magnitude slower than eval().
+ */
+class QuickArrayReader {
+	private $vars = [];
+
+	/**
+	 * @param $string string
+	 */
+	function __construct( $string ) {
+		$scalarTypes = [
+			T_LNUMBER => true,
+			T_DNUMBER => true,
+			T_STRING => true,
+			T_CONSTANT_ENCAPSED_STRING => true,
+		];
+		$skipTypes = [
+			T_WHITESPACE => true,
+			T_COMMENT => true,
+			T_DOC_COMMENT => true,
+		];
+		$tokens = token_get_all( $string );
+		$count = count( $tokens );
+		for ( $i = 0; $i < $count; ) {
+			while ( isset( $skipTypes[$tokens[$i][0]] ) ) {
+				$i++;
+			}
+			switch ( $tokens[$i][0] ) {
+				case T_OPEN_TAG:
+					$i++;
+					continue;
+				case T_VARIABLE:
+					// '$messages' -> 'messages'
+					$varname = trim( substr( $tokens[$i][1], 1 ) );
+					$varindex = null;
+
+					while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+					}
+
+					if ( $tokens[$i] === '[' ) {
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+
+						if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+							$varindex = $this->parseScalar( $tokens[$i] );
+						} else {
+							throw $this->except( $tokens[$i], 'scalar index' );
+						}
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+
+						if ( $tokens[$i] !== ']' ) {
+							throw $this->except( $tokens[$i], ']' );
+						}
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+					}
+
+					if ( $tokens[$i] !== '=' ) {
+						throw $this->except( $tokens[$i], '=' );
+					}
+					while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+					}
+
+					if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+						$buildval = $this->parseScalar( $tokens[$i] );
+					} elseif ( $tokens[$i][0] === T_ARRAY ) {
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+						if ( $tokens[$i] !== '(' ) {
+							throw $this->except( $tokens[$i], '(' );
+						}
+						$buildval = [];
+						do {
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( $tokens[$i] === ')' ) {
+								break;
+							}
+							if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+								$key = $this->parseScalar( $tokens[$i] );
+							}
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( $tokens[$i][0] !== T_DOUBLE_ARROW ) {
+								throw $this->except( $tokens[$i], '=>' );
+							}
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+								$val = $this->parseScalar( $tokens[$i] );
+							}
+							wfSuppressWarnings();
+							$buildval[$key] = $val;
+							wfRestoreWarnings();
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( $tokens[$i] === ',' ) {
+								continue;
+							} elseif ( $tokens[$i] === ')' ) {
+								break;
+							} else {
+								throw $this->except( $tokens[$i], ', or )' );
+							}
+						} while ( true );
+					} else {
+						throw $this->except( $tokens[$i], 'scalar or array' );
+					}
+					if ( is_null( $varindex ) ) {
+						$this->vars[$varname] = $buildval;
+					} else {
+						wfSuppressWarnings();
+						$this->vars[$varname][$varindex] = $buildval;
+						wfRestoreWarnings();
+					}
+					while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+					}
+					if ( $tokens[$i] !== ';' ) {
+						throw $this->except( $tokens[$i], ';' );
+					}
+					$i++;
+					break;
+				default:
+					throw $this->except( $tokens[$i], 'open tag, whitespace, or variable.' );
+			}
+		}
+	}
+
+	/**
+	 * @param $got string
+	 * @param $expected string
+	 * @return Exception
+	 */
+	private function except( $got, $expected ) {
+		if ( is_array( $got ) ) {
+			$got = token_name( $got[0] ) . " ('" . $got[1] . "')";
+		} else {
+			$got = "'" . $got . "'";
+		}
+
+		return new Exception( "Expected $expected, got $got" );
+	}
+
+	/**
+	 * Parse a scalar value in PHP
+	 *
+	 * @param $token string
+	 *
+	 * @return mixed Parsed value
+	 */
+	function parseScalar( $token ) {
+		if ( is_array( $token ) ) {
+			$str = $token[1];
+		} else {
+			$str = $token;
+		}
+		if ( $str !== '' && $str[0] == '\'' ) {
+			// Single-quoted string
+			// @fixme trim() call is due to mystery bug where whitespace gets
+			// appended to the token; without it we ended up reading in the
+			// extra quote on the end!
+			return strtr( substr( trim( $str ), 1, -1 ),
+				[ '\\\'' => '\'', '\\\\' => '\\' ] );
+		}
+
+		wfSuppressWarnings();
+		if ( $str !== '' && $str[0] == '"' ) {
+			// Double-quoted string
+			// @fixme trim() call is due to mystery bug where whitespace gets
+			// appended to the token; without it we ended up reading in the
+			// extra quote on the end!
+			wfRestoreWarnings();
+			return stripcslashes( substr( trim( $str ), 1, -1 ) );
+		}
+		wfRestoreWarnings();
+
+		if ( substr( $str, 0, 4 ) === 'true' ) {
+			return true;
+		}
+
+		if ( substr( $str, 0, 5 ) === 'false' ) {
+			return false;
+		}
+
+		if ( substr( $str, 0, 4 ) === 'null' ) {
+			return null;
+		}
+
+		// Must be some kind of numeric value, so let PHP's weak typing
+		// be useful for a change
+		return $str;
+	}
+
+	/**
+	 * @param $varname string
+	 * @return null|string
+	 */
+	function getVar( $varname ) {
+		if ( isset( $this->vars[$varname] ) ) {
+			return $this->vars[$varname];
+		} else {
+			return null;
+		}
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/README b/www/wiki/extensions/LocalisationUpdate/README
new file mode 100644
index 00000000..c5e2f72e
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/README
@@ -0,0 +1,34 @@
+== Localisation Update ==
+Localisation Update extension can update the MediaWiki messages at any time,
+without needing to upgrade the MediaWiki software.
+
+For more information see:
+ https://www.mediawiki.org/wiki/Extension:LocalisationUpdate
+
+== Installation ==
+1. Add the following to LocalSettings.php of your MediaWiki setup:
+
+ wfLoadExtension( 'LocalisationUpdate' );
+ $wgLocalisationUpdateDirectory = "$IP/cache";
+
+2. Create a cache folder in the installation directory, and be sure the server
+has permissions to write on it.
+
+If localization updates don't seem to come through, you may need to run,
+
+ php maintenance/rebuildLocalisationCache.php --force.
+
+3. Whenever you want to run an update, run,
+
+ php extensions/LocalisationUpdate/update.php
+
+For detailed help, see:
+
+ php extensions/LocalisationUpdate/update.php --help
+
+4. If you are on Unix like system, you should add LocalisationUpdate to
+crontab:
+
+ crontab -e
+ # Add the following line
+ @daily php /path/to/your/wiki/extensions/LocalisationUpdate/update.php --quiet
diff --git a/www/wiki/extensions/LocalisationUpdate/Updater.php b/www/wiki/extensions/LocalisationUpdate/Updater.php
new file mode 100644
index 00000000..7f0c21f7
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/Updater.php
@@ -0,0 +1,195 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Executes the localisation update.
+ */
+class Updater {
+	/**
+	 * Whether the path is a pattern and thus we need to use appropriate
+	 * code for fetching directories.
+	 *
+	 * @param string $path Url
+	 * @return bool
+	 */
+	public function isDirectory( $path ) {
+		$filename = basename( $path );
+		return strpos( $filename, '*' ) !== false;
+	}
+
+	/**
+	 * Expands repository relative path to full url with the given repository
+	 * patterns. Extra variables in $info are used as variables and will be
+	 * replaced the pattern.
+	 *
+	 * @param array $info Component information.
+	 * @param array $repos Repository information.
+	 * @return string
+	 */
+	public function expandRemotePath( $info, $repos ) {
+		$pattern = $repos[$info['repo']];
+		unset( $info['repo'], $info['orig'] );
+
+		// This assumes all other keys are used as variables
+		// in the pattern. For example name -> %NAME%.
+		$keys = [];
+		foreach ( array_keys( $info ) as $key ) {
+			$keys[] = '%' . strtoupper( $key ) . '%';
+		}
+
+		$values = array_values( $info );
+		return str_replace( $keys, $values, $pattern );
+	}
+
+	/**
+	 * Parses translations from given list of files.
+	 *
+	 * @param ReaderFactory $readerFactory Factory to construct parsers.
+	 * @param array $files List of files with their contents as array values.
+	 * @return array List of translations indexed by language code.
+	 */
+	public function readMessages( ReaderFactory $readerFactory, array $files ) {
+		$messages = [];
+
+		foreach ( $files as $filename => $contents ) {
+			$reader = $readerFactory->getReader( $filename );
+			try {
+				$parsed = $reader->parse( $contents );
+			} catch ( \Exception $e ) {
+				trigger_error( __METHOD__ . ": Unable to parse messages from $filename", E_USER_WARNING );
+				continue;
+			}
+
+			foreach ( $parsed as $code => $langMessages ) {
+				if ( !isset( $messages[$code] ) ) {
+					$messages[$code] = [];
+				}
+				$messages[$code] = array_merge( $messages[$code], $langMessages );
+			}
+
+			$c = array_sum( array_map( 'count', $parsed ) );
+			// Useful for debugging, maybe create interface to pass this to the script?
+			# echo "$filename with " . get_class( $reader ) . " and $c\n";
+		}
+
+		return $messages;
+	}
+
+	/**
+	 * Find new and changed translations in $remote and returns them.
+	 *
+	 * @param array $origin
+	 * @param array $remote
+	 * @param array $blacklist Array of message keys to ignore, keys as as array keys.
+	 * @return array
+	 */
+	public function findChangedTranslations( $origin, $remote, $blacklist = [] ) {
+		$changed = [];
+		foreach ( $remote as $key => $value ) {
+			if ( isset( $blacklist[$key] ) ) {
+				continue;
+			}
+
+			if ( !isset( $origin[$key] ) || $value !== $origin[$key] ) {
+				$changed[$key] = $value;
+			}
+		}
+		return $changed;
+	}
+
+	/**
+	 * Fetches files from given Url pattern.
+	 *
+	 * @param FetcherFactory $factory Factory to construct fetchers.
+	 * @param string $path Url to the file or pattern of files.
+	 * @return array List of Urls with file contents as path.
+	 */
+	public function fetchFiles( FetcherFactory $factory, $path ) {
+		$fetcher = $factory->getFetcher( $path );
+
+		if ( $this->isDirectory( $path ) ) {
+			$files = $fetcher->fetchDirectory( $path );
+		} else {
+			$files = [ $path => $fetcher->fetchFile( $path ) ];
+		}
+
+		// Remove files which were not found
+		return array_filter( $files );
+	}
+
+	public function execute(
+		Finder $finder,
+		ReaderFactory $readerFactory,
+		FetcherFactory $fetcherFactory,
+		array $repos
+	) {
+		$components = $finder->getComponents();
+
+		$updatedMessages = [];
+
+		foreach ( $components as $key => $info ) {
+			$originFiles = $this->fetchFiles( $fetcherFactory, $info['orig'] );
+			$remoteFiles = $this->fetchFiles( $fetcherFactory, $this->expandRemotePath( $info, $repos ) );
+
+			if ( $remoteFiles === [] ) {
+				// Small optimization: if nothing to compare with, skip
+				continue;
+			}
+
+			$originMessages = $this->readMessages( $readerFactory, $originFiles );
+			$remoteMessages = $this->readMessages( $readerFactory, $remoteFiles );
+
+			if ( !isset( $remoteMessages['en'] ) ) {
+				// Could not find remote messages
+				continue;
+			}
+
+			// If remote translation in English is not present or differs, we do not want
+			// translations for other languages for those messages, as they are either not
+			// used in this version of code or can be incompatible.
+			$forbiddenKeys = $this->findChangedTranslations(
+				$originMessages['en'],
+				$remoteMessages['en']
+			);
+
+			// We never accept updates for English strings
+			unset( $originMessages['en'], $remoteMessages['en'] );
+
+			// message: string in all languages; translation: string in one language.
+			foreach ( $remoteMessages as $language => $remoteTranslations ) {
+				// Check for completely new languages
+				$originTranslations = [];
+				if ( isset( $originMessages[$language] ) ) {
+					$originTranslations = $originMessages[$language];
+				}
+
+				$updatedTranslations = $this->findChangedTranslations(
+					$originTranslations,
+					$remoteTranslations,
+					$forbiddenKeys
+				);
+
+				// Avoid empty arrays
+				if ( $updatedTranslations === [] ) {
+					continue;
+				}
+
+				if ( !isset( $updatedMessages[$language] ) ) {
+					$updatedMessages[$language] = [];
+				}
+
+				// In case of conflicts, which should not exist, this prefers the
+				// first translation seen.
+				$updatedMessages[$language] += $updatedTranslations;
+			}
+		}
+
+		return $updatedMessages;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/composer.json b/www/wiki/extensions/LocalisationUpdate/composer.json
new file mode 100644
index 00000000..e49e334b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/composer.json
@@ -0,0 +1,55 @@
+{
+	"name": "mediawiki/localisation-update",
+	"type": "mediawiki-extension",
+	"description": "MediaWiki extension to keep the localised messages as up to date as possible.",
+	"keywords": [
+		"MediaWiki",
+		"l10n",
+		"localization"
+	],
+	"homepage": "https://www.mediawiki.org/wiki/Extension:LocalisationUpdate",
+	"license": "GPL-2.0-or-later",
+	"authors": [
+		{
+			"name": "Roan Kattouw",
+			"email": "roan.kattouw@gmail.com",
+			"role": "Developer"
+		},
+		{
+			"name": "Niklas Laxström",
+			"email": "niklas.laxstrom@gmail.com",
+			"role": "Developer"
+		},
+		{
+			"name": "Tom Maaswinkel",
+			"role": "Original author"
+		}
+	],
+	"support": {
+		"issues": "https://phabricator.wikimedia.org/",
+		"irc": "irc://irc.freenode.net/mediawiki",
+		"forum": "https://www.mediawiki.org/wiki/Extension_talk:LocalisationUpdate",
+		"wiki": "https://www.mediawiki.org/wiki/Extension:LocalisationUpdate"
+	},
+	"require-dev": {
+		"jakub-onderka/php-parallel-lint": "1.0.0",
+		"mediawiki/mediawiki-codesniffer": "18.0.0",
+		"jakub-onderka/php-console-highlighter": "0.3.2",
+		"mediawiki/minus-x": "0.3.1",
+		"mediawiki/mediawiki-phan-config": "0.2.0"
+	},
+	"scripts": {
+		"fix": [
+			"phpcbf",
+			"minus-x fix ."
+		],
+		"test": [
+			"parallel-lint . --exclude vendor --exclude node_modules",
+			"phpcs -p -s",
+			"minus-x check ."
+		]
+	},
+	"extra": {
+		"phan-taint-check-plugin": "1.2.0"
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/extension.json b/www/wiki/extensions/LocalisationUpdate/extension.json
new file mode 100644
index 00000000..901f66fc
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/extension.json
@@ -0,0 +1,55 @@
+{
+	"@note": "This file must be kept in sync with LocalisationUpdate.php",
+	"name": "LocalisationUpdate",
+	"namemsg": "localisationupdate-extensionname",
+	"version": "1.4.0",
+	"author": [
+		"Tom Maaswinkel",
+		"Niklas Laxström",
+		"Roan Kattouw"
+	],
+	"url": "https://www.mediawiki.org/wiki/Extension:LocalisationUpdate",
+	"descriptionmsg": "localisationupdate-desc",
+	"license-name": "GPL-2.0-or-later",
+	"type": "other",
+	"MessagesDirs": {
+		"LocalisationUpdate": [
+			"i18n"
+		]
+	},
+	"AutoloadClasses": {
+		"LocalisationUpdate": "includes/LocalisationUpdate.php",
+		"LocalisationUpdate\\Updater": "includes/Updater.php",
+		"QuickArrayReader": "includes/QuickArrayReader.php",
+		"LocalisationUpdate\\Fetcher": "includes/fetcher/Fetcher.php",
+		"LocalisationUpdate\\FetcherFactory": "includes/fetcher/FetcherFactory.php",
+		"LocalisationUpdate\\FileSystemFetcher": "includes/fetcher/FileSystemFetcher.php",
+		"LocalisationUpdate\\GitHubFetcher": "includes/fetcher/GitHubFetcher.php",
+		"LocalisationUpdate\\HttpFetcher": "includes/fetcher/HttpFetcher.php",
+		"LocalisationUpdate\\Finder": "includes/finder/Finder.php",
+		"LocalisationUpdate\\JSONReader": "includes/reader/JSONReader.php",
+		"LocalisationUpdate\\PHPReader": "includes/reader/PHPReader.php",
+		"LocalisationUpdate\\Reader": "includes/reader/Reader.php",
+		"LocalisationUpdate\\ReaderFactory": "includes/reader/ReaderFactory.php"
+	},
+	"Hooks": {
+		"LocalisationCacheRecache": [
+			"LocalisationUpdate::onRecache"
+		],
+		"LocalisationCacheRecacheFallback": [
+			"LocalisationUpdate::onRecacheFallback"
+		]
+	},
+	"config": {
+		"LocalisationUpdateDirectory": false,
+		"LocalisationUpdateRepository": "github",
+		"LocalisationUpdateRepositories": {
+			"github": {
+				"mediawiki": "https://raw.github.com/wikimedia/mediawiki/master/%PATH%",
+				"extension": "https://raw.github.com/wikimedia/mediawiki-extensions-%NAME%/master/%PATH%",
+				"skin": "https://raw.github.com/wikimedia/mediawiki-skins-%NAME%/master/%PATH%"
+			}
+		}
+	},
+	"manifest_version": 1
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/fetcher/Fetcher.php b/www/wiki/extensions/LocalisationUpdate/fetcher/Fetcher.php
new file mode 100644
index 00000000..9ff79584
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/fetcher/Fetcher.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Interface for classes which fetch files over different protocols and ways.
+ */
+interface Fetcher {
+	/**
+	 * Fetches a single resource.
+	 *
+	 * @return bool|string False on failure.
+	 */
+	public function fetchFile( $url );
+
+	/**
+	 * Fetch a list of resources. This has the benefit of being able to pick up
+	 * new languages as they appear if languages are stored in separate files.
+	 *
+	 * @return array
+	 */
+	public function fetchDirectory( $pattern );
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/fetcher/FetcherFactory.php b/www/wiki/extensions/LocalisationUpdate/fetcher/FetcherFactory.php
new file mode 100644
index 00000000..570dc7e0
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/fetcher/FetcherFactory.php
@@ -0,0 +1,25 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Constructs fetchers based on the repository urls.
+ */
+class FetcherFactory {
+	public function getFetcher( $path ) {
+		if ( strpos( $path, 'https://raw.github.com/' ) === 0 ) {
+			return new GitHubFetcher();
+		} elseif ( strpos( $path, 'http://' ) === 0 ) {
+			return new HttpFetcher();
+		} elseif ( strpos( $path, 'https://' ) === 0 ) {
+			return new HttpFetcher();
+		} else {
+			return new FileSystemFetcher();
+		}
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/fetcher/FileSystemFetcher.php b/www/wiki/extensions/LocalisationUpdate/fetcher/FileSystemFetcher.php
new file mode 100644
index 00000000..6d215867
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/fetcher/FileSystemFetcher.php
@@ -0,0 +1,37 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Accesses file system directly.
+ */
+class FileSystemFetcher implements Fetcher {
+	public function fetchFile( $url ) {
+		// Remove the protocol prefix
+		$url = preg_replace( '~^file://~', '', $url );
+
+		if ( !is_readable( $url ) ) {
+			return false;
+		}
+
+		return file_get_contents( $url );
+	}
+
+	public function fetchDirectory( $pattern ) {
+		// Remove the protocol prefix
+		$pattern = preg_replace( '~^file://~', '', $pattern );
+
+		$data = [];
+		foreach ( glob( $pattern ) as $file ) {
+			if ( is_readable( $file ) ) {
+				$data["file://$file"] = file_get_contents( $file );
+			}
+		}
+		return $data;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/fetcher/GitHubFetcher.php b/www/wiki/extensions/LocalisationUpdate/fetcher/GitHubFetcher.php
new file mode 100644
index 00000000..5bc7d4f2
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/fetcher/GitHubFetcher.php
@@ -0,0 +1,41 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * This class uses GitHub api to obtain a list of files present in a directory
+ * to avoid fetching files that don't exist.
+ *
+ * @todo Could use file hashes to 1) avoid fetching files with same hash as
+ * the source. 2) avoid fetching files which haven't changed since last check
+ * if we store them.
+ */
+class GitHubFetcher extends HttpFetcher {
+	public function fetchDirectory( $pattern ) {
+		$domain = preg_quote( 'https://raw.github.com/', '~' );
+		$p = "~^$domain(?P<org>[^/]+)/(?P<repo>[^/]+)/(?P<branch>[^/]+)/(?P<path>.+)/.+$~";
+		preg_match( $p, $pattern, $m );
+
+		$apiURL = "https://api.github.com/repos/{$m['org']}/{$m['repo']}/contents/{$m['path']}";
+		$json = \Http::get( $apiURL );
+		if ( !$json ) {
+			throw new \Exception( "Unable to get directory listing for {$m['org']}/{$m['repo']}" );
+		}
+
+		$files = [];
+		$json = \FormatJson::decode( $json, true );
+		foreach ( $json as $fileinfo ) {
+			$fileurl = dirname( $pattern ) . '/' . $fileinfo['name'];
+			$file = $this->fetchFile( $fileurl );
+			if ( $file ) {
+				$files[$fileurl] = $file;
+			}
+		}
+		return $files;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/fetcher/HttpFetcher.php b/www/wiki/extensions/LocalisationUpdate/fetcher/HttpFetcher.php
new file mode 100644
index 00000000..42b0f032
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/fetcher/HttpFetcher.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Fetches files over HTTP(s).
+ */
+class HttpFetcher implements Fetcher {
+	public function fetchFile( $url ) {
+		return \Http::get( $url );
+	}
+
+	/**
+	 * This is horribly inefficient. Subclasses have more efficient
+	 * implementation of this.
+	 */
+	public function fetchDirectory( $pattern ) {
+		$files = [];
+
+		$languages = \Language::fetchLanguageNames( null, 'mwfile' );
+
+		foreach ( array_keys( $languages ) as $code ) {
+			// Hack for core
+			if ( strpos( $pattern, 'Messages*.php' ) !== false ) {
+				$code = ucfirst( strtr( $code, '-', '_' ) );
+			}
+
+			$url = str_replace( '*', $code, $pattern );
+			$file = $this->fetchFile( $url );
+			if ( $file ) {
+				$files[$url] = $file;
+			}
+		}
+
+		return $files;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/finder/Finder.php b/www/wiki/extensions/LocalisationUpdate/finder/Finder.php
new file mode 100644
index 00000000..20ba9377
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/finder/Finder.php
@@ -0,0 +1,109 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Interface for classes which provide list of components, which should be
+ * included for l10n updates.
+ */
+class Finder {
+	/**
+	 * @param array $php See $wgExtensionMessagesFiles
+	 * @param array $json See $wgMessagesDirs
+	 * @param string $core Absolute path to MediaWiki core
+	 */
+	public function __construct( $php, $json, $core ) {
+		$this->php = $php;
+		$this->json = $json;
+		$this->core = $core;
+	}
+
+	/**
+	 * @return array
+	 */
+	public function getComponents() {
+		$components = [];
+
+		// For older versions of Mediawiki, pull json updates even though its still using php
+		if ( !isset( $this->json['core'] ) ) {
+			$components['core'] = [
+				'repo' => 'mediawiki',
+				'orig' => "file://{$this->core}/languages/messages/Messages*.php",
+				'path' => 'languages/messages/i18n/*.json',
+			];
+		}
+
+		foreach ( $this->json as $key => $value ) {
+			// Json should take priority if both exist
+			unset( $this->php[$key] );
+
+			foreach ( (array)$value as $subkey => $subvalue ) {
+				// Mediawiki core files
+				$matches = [];
+				if ( preg_match( '~/(?P<path>(?:includes|languages|resources)/.*)$~', $subvalue, $matches ) ) {
+					$components["$key-$subkey"] = [
+						'repo' => 'mediawiki',
+						'orig' => "file://$value/*.json",
+						'path' => "{$matches['path']}/*.json",
+					];
+					continue;
+				}
+
+				$item = $this->getItem( 'extensions', $subvalue );
+				if ( $item !== null ) {
+					$item['repo'] = 'extension';
+					$components["$key-$subkey"] = $item;
+					continue;
+				}
+
+				$item = $this->getItem( 'skins', $subvalue );
+				if ( $item !== null ) {
+					$item['repo'] = 'skin';
+					$components["$key-$subkey"] = $item;
+					continue;
+				}
+			}
+		}
+
+		foreach ( $this->php as $key => $value ) {
+			$matches = [];
+			$ok = preg_match( '~/extensions/(?P<name>[^/]+)/(?P<path>.*\.i18n\.php)$~', $value, $matches );
+			if ( !$ok ) {
+				continue;
+			}
+
+			$components[$key] = [
+				'repo' => 'extension',
+				'name' => $matches['name'],
+				'orig' => "file://$value",
+				'path' => $matches['path'],
+			];
+		}
+
+		return $components;
+	}
+
+	/**
+	 * @param string $dir extensions or skins
+	 * @param string $subvalue
+	 * @return array|null
+	 */
+	private function getItem( $dir, $subvalue ) {
+		// This ignores magic, alias etc. non message files
+		$matches = [];
+		if ( !preg_match( "~/$dir/(?P<name>[^/]+)/(?P<path>.*)$~", $subvalue, $matches ) ) {
+			return null;
+		}
+
+		return [
+			'name' => $matches['name'],
+			'orig' => "file://$subvalue/*.json",
+			'path' => "{$matches['path']}/*.json",
+		];
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/af.json b/www/wiki/extensions/LocalisationUpdate/i18n/af.json
new file mode 100644
index 00000000..3739dc26
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/af.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Naudefj"
+		]
+	},
+	"localisationupdate-desc": "Hou die gelokaliseerde boodskappe so op datum as moontlik"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ar.json b/www/wiki/extensions/LocalisationUpdate/i18n/ar.json
new file mode 100644
index 00000000..101e54ee
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ar.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Meno25"
+		]
+	},
+	"localisationupdate-desc": "يبقي الرسائل المترجمة محدثة كأفضل ما يكون"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ast.json b/www/wiki/extensions/LocalisationUpdate/i18n/ast.json
new file mode 100644
index 00000000..13fcd456
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ast.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Xuacu"
+		]
+	},
+	"localisationupdate-desc": "Caltién los mensaxes llocalizaos tan anovaos como se pueda"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ba.json b/www/wiki/extensions/LocalisationUpdate/i18n/ba.json
new file mode 100644
index 00000000..e96ee2b4
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ba.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Assele"
+		]
+	},
+	"localisationupdate-desc": "Локалләштерелгән хәбәрҙәрҙең мөмкин тиклем яңы булыуын тәьмин итә"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/bar.json b/www/wiki/extensions/LocalisationUpdate/i18n/bar.json
new file mode 100644
index 00000000..0c4c56f7
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/bar.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Man77"
+		]
+	},
+	"localisationupdate-desc": "Lokalisiade Texte und Nåchrichtn so aktuell håidn wia's gråd gehd"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/be-tarask.json b/www/wiki/extensions/LocalisationUpdate/i18n/be-tarask.json
new file mode 100644
index 00000000..01f487be
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/be-tarask.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"EugeneZelenko",
+			"Wizardist"
+		]
+	},
+	"localisationupdate-desc": "Сочыць за актуальнасьцю лякалізаваных паведамленьняў, наколькі гэта магчыма"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/bg.json b/www/wiki/extensions/LocalisationUpdate/i18n/bg.json
new file mode 100644
index 00000000..59a6edbd
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/bg.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"DCLXVI"
+		]
+	},
+	"localisationupdate-desc": "Поддържа локализираните съобщения възможно най-актуални"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/bn.json b/www/wiki/extensions/LocalisationUpdate/i18n/bn.json
new file mode 100644
index 00000000..6936be62
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/bn.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Bellayet"
+		]
+	},
+	"localisationupdate-desc": "স্থানীয়করণকৃত বার্তাসমূহ যথাসম্ভব হালনাগাদ রাখে"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/br.json b/www/wiki/extensions/LocalisationUpdate/i18n/br.json
new file mode 100644
index 00000000..89db4778
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/br.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Fulup"
+		]
+	},
+	"localisationupdate-desc": "Derc'hel da hizivaat ar c'hemennoù troet ken fonnus ha ma'z eus tu"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/bs.json b/www/wiki/extensions/LocalisationUpdate/i18n/bs.json
new file mode 100644
index 00000000..339dae1d
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/bs.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"CERminator"
+		]
+	},
+	"localisationupdate-desc": "Zadržavanje lokaliziranih poruka ažurnim koliko je god moguće"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ca.json b/www/wiki/extensions/LocalisationUpdate/i18n/ca.json
new file mode 100644
index 00000000..4b4ac0af
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ca.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Paucabot",
+			"Fitoschido"
+		]
+	},
+	"localisationupdate-desc": "Manté els missatges traduïts tan actualitzats com sigui possible"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ce.json b/www/wiki/extensions/LocalisationUpdate/i18n/ce.json
new file mode 100644
index 00000000..579d7dbb
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ce.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Умар"
+		]
+	},
+	"localisationupdate-desc": "Таро ма хуьйла хаамашан болх бан гӀо до"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/cs.json b/www/wiki/extensions/LocalisationUpdate/i18n/cs.json
new file mode 100644
index 00000000..d72e9110
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/cs.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Mormegil"
+		]
+	},
+	"localisationupdate-desc": "Udržuje lokalizovaná hlášení co možná nejaktuálnější"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/cy.json b/www/wiki/extensions/LocalisationUpdate/i18n/cy.json
new file mode 100644
index 00000000..9ab89a53
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/cy.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Lloffiwr"
+		]
+	},
+	"localisationupdate-desc": "Yn diweddaru'r cyfieithiadau o negeseuon mor aml â phosib"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/da.json b/www/wiki/extensions/LocalisationUpdate/i18n/da.json
new file mode 100644
index 00000000..645d0842
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/da.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Peter Alberti"
+		]
+	},
+	"localisationupdate-desc": "Holder de lokaliserede meddelelser så opdaterede som muligt"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/de.json b/www/wiki/extensions/LocalisationUpdate/i18n/de.json
new file mode 100644
index 00000000..98f9dc14
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/de.json
@@ -0,0 +1,11 @@
+{
+	"@metadata": {
+		"authors": [
+			"Kghbln",
+			"Purodha",
+			"Metalhead64"
+		]
+	},
+	"localisationupdate-extensionname": "LocalisationUpdate",
+	"localisationupdate-desc": "Ermöglicht es lokalisierte Texte und Nachrichten so aktuell wie möglich zu halten"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/dsb.json b/www/wiki/extensions/LocalisationUpdate/i18n/dsb.json
new file mode 100644
index 00000000..11cbf5d9
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/dsb.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Michawiki"
+		]
+	},
+	"localisationupdate-desc": "Źaržy lokalizěrowane powěźeńki tak aktualne ako móžno"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/el.json b/www/wiki/extensions/LocalisationUpdate/i18n/el.json
new file mode 100644
index 00000000..7b4db44c
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/el.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Omnipaedista"
+		]
+	},
+	"localisationupdate-desc": "Διατηρεί τις μεταφράσεις μηνυμάτων όσο πιο ενημερωμένες γίνεται"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/en.json b/www/wiki/extensions/LocalisationUpdate/i18n/en.json
new file mode 100644
index 00000000..a15cef56
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/en.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Tom Maaswinkel"
+		]
+	},
+	"localisationupdate-extensionname": "LocalisationUpdate",
+	"localisationupdate-desc": "Keeps the localised messages as up to date as possible"
+}
\ No newline at end of file
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/eo.json b/www/wiki/extensions/LocalisationUpdate/i18n/eo.json
new file mode 100644
index 00000000..c1251faa
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/eo.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Yekrats"
+		]
+	},
+	"localisationupdate-desc": "Ĝisdatigas la asimilitajn mesaĝojn tiom eble"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/es.json b/www/wiki/extensions/LocalisationUpdate/i18n/es.json
new file mode 100644
index 00000000..aea82b47
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/es.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Crazymadlover",
+			"Fitoschido"
+		]
+	},
+	"localisationupdate-desc": "Mantiene los mensajes traducidos tan actualizados como sea posible"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/et.json b/www/wiki/extensions/LocalisationUpdate/i18n/et.json
new file mode 100644
index 00000000..9cf22620
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/et.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Pikne"
+		]
+	},
+	"localisationupdate-desc": "Hoiab lokaliseeritud sõnumid nii ajakohased kui võimalik."
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/eu.json b/www/wiki/extensions/LocalisationUpdate/i18n/eu.json
new file mode 100644
index 00000000..3f55906c
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/eu.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Kobazulo"
+		]
+	},
+	"localisationupdate-desc": "Itzulitako mezuak ahalik eta eguneratuen mantentzen ditu"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/fa.json b/www/wiki/extensions/LocalisationUpdate/i18n/fa.json
new file mode 100644
index 00000000..ae1a2a27
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/fa.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"ZxxZxxZ"
+		]
+	},
+	"localisationupdate-desc": "پیغام‌های محلی‌سازی‌شده را تا جای ممکن به‌روز نگه می‌دارد"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/fi.json b/www/wiki/extensions/LocalisationUpdate/i18n/fi.json
new file mode 100644
index 00000000..253c2de7
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/fi.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Crt",
+			"Nike"
+		]
+	},
+	"localisationupdate-desc": "Pitää ohjelmiston käännöksen ajantasaisena."
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/fr.json b/www/wiki/extensions/LocalisationUpdate/i18n/fr.json
new file mode 100644
index 00000000..b62e2b6b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/fr.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Crochet.david"
+		]
+	},
+	"localisationupdate-desc": "Maintenir la traduction des messages à jour autant que possible"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/gl.json b/www/wiki/extensions/LocalisationUpdate/i18n/gl.json
new file mode 100644
index 00000000..f80215b3
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/gl.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Toliño"
+		]
+	},
+	"localisationupdate-desc": "Mantén as mensaxes localizadas tan actualizadas como é posible"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/gsw.json b/www/wiki/extensions/LocalisationUpdate/i18n/gsw.json
new file mode 100644
index 00000000..9ce091c0
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/gsw.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Als-Holder"
+		]
+	},
+	"localisationupdate-desc": "Halt d Syschtemnochrichte so aktuälle wie megli"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/gu.json b/www/wiki/extensions/LocalisationUpdate/i18n/gu.json
new file mode 100644
index 00000000..d0fb3fdb
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/gu.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"KartikMistry"
+		]
+	},
+	"localisationupdate-desc": "ભાષાંતરોને શક્ય હોય ત્યાં સુધી છેલ્લામાં છેલ્લાં રાખે છે"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/he.json b/www/wiki/extensions/LocalisationUpdate/i18n/he.json
new file mode 100644
index 00000000..9a1b8c64
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/he.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"YaronSh"
+		]
+	},
+	"localisationupdate-desc": "שמירת ההודעות המתורגמות מעודכנות ככל הניתן"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/hil.json b/www/wiki/extensions/LocalisationUpdate/i18n/hil.json
new file mode 100644
index 00000000..cff1ac40
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/hil.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Tagimata"
+		]
+	},
+	"localisationupdate-desc": "Gatugo sang mga mensahe nga lokal para mapahibalo sang madali"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/hr.json b/www/wiki/extensions/LocalisationUpdate/i18n/hr.json
new file mode 100644
index 00000000..8d196c34
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/hr.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"SpeedyGonsales"
+		]
+	},
+	"localisationupdate-desc": "Dogradnja za osvježavanje lokalizacije poruka MediaWikija"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/hsb.json b/www/wiki/extensions/LocalisationUpdate/i18n/hsb.json
new file mode 100644
index 00000000..04adee04
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/hsb.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Michawiki"
+		]
+	},
+	"localisationupdate-desc": "Dźerži lokalizowane zdźělenki tak aktualne kaž móžno"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/hu.json b/www/wiki/extensions/LocalisationUpdate/i18n/hu.json
new file mode 100644
index 00000000..f8bd039b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/hu.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Glanthor Reviol"
+		]
+	},
+	"localisationupdate-desc": "Frissíti a lefordított üzeneteket"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ia.json b/www/wiki/extensions/LocalisationUpdate/i18n/ia.json
new file mode 100644
index 00000000..7ab58ab9
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ia.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"McDutchie"
+		]
+	},
+	"localisationupdate-desc": "Mantene le messages localisate tanto actual como possibile"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/id.json b/www/wiki/extensions/LocalisationUpdate/i18n/id.json
new file mode 100644
index 00000000..6f46173a
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/id.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Bennylin"
+		]
+	},
+	"localisationupdate-desc": "Mengusahakan agar pesan-pesan yang telah diterjemahkan tetap semutakhir mungkin"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ilo.json b/www/wiki/extensions/LocalisationUpdate/i18n/ilo.json
new file mode 100644
index 00000000..56428785
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ilo.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Lam-ang"
+		]
+	},
+	"localisationupdate-desc": "Taginayonenna a mapabaro dagiti naipatarus a mensahe"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/it.json b/www/wiki/extensions/LocalisationUpdate/i18n/it.json
new file mode 100644
index 00000000..b1ee5aa3
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/it.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Darth Kule"
+		]
+	},
+	"localisationupdate-desc": "Mantiene i messaggi localizzati quanto più aggiornati è possibile"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ja.json b/www/wiki/extensions/LocalisationUpdate/i18n/ja.json
new file mode 100644
index 00000000..8eba705e
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ja.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Fryed-peach",
+			"Shirayuki"
+		]
+	},
+	"localisationupdate-desc": "メッセージの翻訳をできるだけ最新に保つ"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/km.json b/www/wiki/extensions/LocalisationUpdate/i18n/km.json
new file mode 100644
index 00000000..c3f78d86
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/km.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"វ័ណថារិទ្ធ"
+		]
+	},
+	"localisationupdate-desc": "រក្សា​សារ​ដែលបាន​ប្រែសម្រួល​ទាំងឡាយ អោយនៅ​ទាន់សម័យ​តាមដែលអាចធ្វើទៅបាន​"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ko.json b/www/wiki/extensions/LocalisationUpdate/i18n/ko.json
new file mode 100644
index 00000000..0f906a59
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ko.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Kwj2772",
+			"아라"
+		]
+	},
+	"localisationupdate-desc": "번역된 메시지를 가능한 한 최신으로 유지합니다"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ksh.json b/www/wiki/extensions/LocalisationUpdate/i18n/ksh.json
new file mode 100644
index 00000000..ecb69cd7
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ksh.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Purodha"
+		]
+	},
+	"localisationupdate-desc": "Texte un Nohreeschte vum Wiki esu joot wi müjjelich om neueste Shtand halde"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/lb.json b/www/wiki/extensions/LocalisationUpdate/i18n/lb.json
new file mode 100644
index 00000000..f2eed733
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/lb.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Robby",
+			"Soued031"
+		]
+	},
+	"localisationupdate-desc": "hält déi lokaliséiert Messagen sou aktuell wéi méiglech."
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/lij.json b/www/wiki/extensions/LocalisationUpdate/i18n/lij.json
new file mode 100644
index 00000000..8e699bbc
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/lij.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Giromin Cangiaxo"
+		]
+	},
+	"localisationupdate-desc": "O manten i messaggi localizæ ciù agiornæ che se poeu"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/mk.json b/www/wiki/extensions/LocalisationUpdate/i18n/mk.json
new file mode 100644
index 00000000..3ac7e4df
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/mk.json
@@ -0,0 +1,9 @@
+{
+	"@metadata": {
+		"authors": [
+			"Bjankuloski06"
+		]
+	},
+	"localisationupdate-extensionname": "Поднова на локализацијата",
+	"localisationupdate-desc": "Ги одржува локализираните пораки колку што е можно пообновени и повеќе во тек со настаните"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ml.json b/www/wiki/extensions/LocalisationUpdate/i18n/ml.json
new file mode 100644
index 00000000..5e7dfd76
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ml.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Praveenp"
+		]
+	},
+	"localisationupdate-desc": "പ്രാദേശികഭാഷയിലാക്കിയ സന്ദേശങ്ങൾ കഴിയുന്നത്ര വേഗം ചേർക്കാൻ ഉപയോഗിക്കുന്നു"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ms.json b/www/wiki/extensions/LocalisationUpdate/i18n/ms.json
new file mode 100644
index 00000000..5081ed8e
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ms.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Anakmalaysia"
+		]
+	},
+	"localisationupdate-desc": "Memastikan kekemaskinian mesej-mesej yang disetempatkan"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/nb.json b/www/wiki/extensions/LocalisationUpdate/i18n/nb.json
new file mode 100644
index 00000000..e9db5be1
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/nb.json
@@ -0,0 +1,10 @@
+{
+	"@metadata": {
+		"authors": [
+			"Nghtwlkr",
+			"Jon Harald Søby"
+		]
+	},
+	"localisationupdate-extensionname": "LocalisationUpdate",
+	"localisationupdate-desc": "Holder de lokaliserte meldingene så oppdaterte som mulig"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/nl.json b/www/wiki/extensions/LocalisationUpdate/i18n/nl.json
new file mode 100644
index 00000000..a05698e6
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/nl.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Siebrand"
+		]
+	},
+	"localisationupdate-desc": "Houdt de gelokaliseerde berichten zo actueel mogelijk"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/nn.json b/www/wiki/extensions/LocalisationUpdate/i18n/nn.json
new file mode 100644
index 00000000..b9730f27
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/nn.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Gunnernett"
+		]
+	},
+	"localisationupdate-desc": "Held dei lokaliserte meldingane så oppdaterte som mogleg"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/oc.json b/www/wiki/extensions/LocalisationUpdate/i18n/oc.json
new file mode 100644
index 00000000..541dd0b9
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/oc.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Cedric31"
+		]
+	},
+	"localisationupdate-desc": "Manténer la traduccion dels messatges a jorn autant que possible"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/pl.json b/www/wiki/extensions/LocalisationUpdate/i18n/pl.json
new file mode 100644
index 00000000..2ed878ea
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/pl.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Sp5uhe"
+		]
+	},
+	"localisationupdate-desc": "Uaktualnia lokalne komunikaty w miarę możliwości na bieżąco"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/pms.json b/www/wiki/extensions/LocalisationUpdate/i18n/pms.json
new file mode 100644
index 00000000..bebbbd8a
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/pms.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Dragonòt"
+		]
+	},
+	"localisationupdate-desc": "A manten i messagi localisà ël pì agiornà possìbil"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/pt-br.json b/www/wiki/extensions/LocalisationUpdate/i18n/pt-br.json
new file mode 100644
index 00000000..2684cfa9
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/pt-br.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Eduardo.mps"
+		]
+	},
+	"localisationupdate-desc": "Mantém as mensagens localizadas tão atualizadas quanto possível"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/pt.json b/www/wiki/extensions/LocalisationUpdate/i18n/pt.json
new file mode 100644
index 00000000..bbda7981
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/pt.json
@@ -0,0 +1,10 @@
+{
+	"@metadata": {
+		"authors": [
+			"Hamilton Abreu",
+			"Luckas",
+			"Malafaya"
+		]
+	},
+	"localisationupdate-desc": "Mantém as mensagens traduzidas tão atualizadas quanto possível"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/qqq.json b/www/wiki/extensions/LocalisationUpdate/i18n/qqq.json
new file mode 100644
index 00000000..99da1a04
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/qqq.json
@@ -0,0 +1,12 @@
+{
+	"@metadata": {
+		"authors": [
+			"Fryed-peach",
+			"Purodha",
+			"Shirayuki",
+			"Umherirrender"
+		]
+	},
+	"localisationupdate-extensionname": "{{name}}",
+	"localisationupdate-desc": "{{desc|name=Localisation Update|url=https://www.mediawiki.org/wiki/Extension:LocalisationUpdate}}"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ro.json b/www/wiki/extensions/LocalisationUpdate/i18n/ro.json
new file mode 100644
index 00000000..b609969c
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ro.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"KlaudiuMihaila"
+		]
+	},
+	"localisationupdate-desc": "Menține mesajele localizate cât mai actualizate"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/roa-tara.json b/www/wiki/extensions/LocalisationUpdate/i18n/roa-tara.json
new file mode 100644
index 00000000..47d5c72c
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/roa-tara.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Joetaras"
+		]
+	},
+	"localisationupdate-desc": "Mandine le messagge localizzate 'u cchiù aggiornate possibbile"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ru.json b/www/wiki/extensions/LocalisationUpdate/i18n/ru.json
new file mode 100644
index 00000000..a0e4739e
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ru.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Александр Сигачёв"
+		]
+	},
+	"localisationupdate-desc": "Поддерживает актуальность локализованных сообщений, насколько это возможно"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/sk.json b/www/wiki/extensions/LocalisationUpdate/i18n/sk.json
new file mode 100644
index 00000000..396998ad
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/sk.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Helix84"
+		]
+	},
+	"localisationupdate-desc": "Udržiava lokalizované správy čo najaktuálnejšie"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/sr-ec.json b/www/wiki/extensions/LocalisationUpdate/i18n/sr-ec.json
new file mode 100644
index 00000000..dfd900a4
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/sr-ec.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Михајло Анђелковић"
+		]
+	},
+	"localisationupdate-desc": "Ажурира локализоване поруке колико је то могуће"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/sr-el.json b/www/wiki/extensions/LocalisationUpdate/i18n/sr-el.json
new file mode 100644
index 00000000..f303273b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/sr-el.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Liangent"
+		]
+	},
+	"localisationupdate-desc": "Ažurira lokalizovane poruke koliko je to moguće"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/su.json b/www/wiki/extensions/LocalisationUpdate/i18n/su.json
new file mode 100644
index 00000000..2c9d2f13
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/su.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Kandar"
+		]
+	},
+	"localisationupdate-desc": "Ngajaga sangkan talatah-talatah nu geus dialihbasakeun salawasnya mutahir"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/sv.json b/www/wiki/extensions/LocalisationUpdate/i18n/sv.json
new file mode 100644
index 00000000..a68f4521
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/sv.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Boivie"
+		]
+	},
+	"localisationupdate-desc": "Håller de lokaliserade meddelandena så uppdaterade som möjligt"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/ta.json b/www/wiki/extensions/LocalisationUpdate/i18n/ta.json
new file mode 100644
index 00000000..153519e6
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/ta.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"செல்வா"
+		]
+	},
+	"localisationupdate-desc": "உட்சூழலுக்கான செய்திகளை கூடியமட்டிலும் இன்றையநிலையில் வைக்கப்பட்டுள்ளன"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/te.json b/www/wiki/extensions/LocalisationUpdate/i18n/te.json
new file mode 100644
index 00000000..4bc8cd36
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/te.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Veeven"
+		]
+	},
+	"localisationupdate-desc": "స్ధానికీకరించిన సందేశాలను సాధ్యమైనంత తాజాగా ఉంచుతుంది"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/tl.json b/www/wiki/extensions/LocalisationUpdate/i18n/tl.json
new file mode 100644
index 00000000..e493bc7b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/tl.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"AnakngAraw"
+		]
+	},
+	"localisationupdate-desc": "Pinananatili ang mga mensaheng lokalisado bilang pinaka nasasapanahon"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/tr.json b/www/wiki/extensions/LocalisationUpdate/i18n/tr.json
new file mode 100644
index 00000000..63191719
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/tr.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Joseph"
+		]
+	},
+	"localisationupdate-desc": "Yerelleştirilen mesajları mümkün olabildiğince güncel tutar"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/uk.json b/www/wiki/extensions/LocalisationUpdate/i18n/uk.json
new file mode 100644
index 00000000..e2c2446e
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/uk.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Prima klasy4na"
+		]
+	},
+	"localisationupdate-desc": "Забезпечує оновлення локалізованих повідомлень у міру можливості"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/vep.json b/www/wiki/extensions/LocalisationUpdate/i18n/vep.json
new file mode 100644
index 00000000..8f3916d5
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/vep.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Игорь Бродский"
+		]
+	},
+	"localisationupdate-desc": "Pidab lokaliziruidud tedotused veresin, ku voib"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/vi.json b/www/wiki/extensions/LocalisationUpdate/i18n/vi.json
new file mode 100644
index 00000000..9c0e7091
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/vi.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Vinhtantran"
+		]
+	},
+	"localisationupdate-desc": "Giữ các thông điệp bản địa hóa được cập nhật nhất có thể"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/wa.json b/www/wiki/extensions/LocalisationUpdate/i18n/wa.json
new file mode 100644
index 00000000..cba6cba1
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/wa.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Srtxg"
+		]
+	},
+	"localisationupdate-desc": "Po wårder  les ratournaedjes di l' eterface li pus a djoû possibe"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/yi.json b/www/wiki/extensions/LocalisationUpdate/i18n/yi.json
new file mode 100644
index 00000000..eab1afc4
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/yi.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"פוילישער"
+		]
+	},
+	"localisationupdate-desc": "האלטן די לאקאליזירטע מעלדונגען אקטועל ווי נאר מעגלעך"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/yue.json b/www/wiki/extensions/LocalisationUpdate/i18n/yue.json
new file mode 100644
index 00000000..1376dc0e
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/yue.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Tom Maaswinkel"
+		]
+	},
+	"localisationupdate-desc": "將本地化嘅信息保持最新"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/zh-hans.json b/www/wiki/extensions/LocalisationUpdate/i18n/zh-hans.json
new file mode 100644
index 00000000..8141f127
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/zh-hans.json
@@ -0,0 +1,8 @@
+{
+	"@metadata": {
+		"authors": [
+			"Tom Maaswinkel"
+		]
+	},
+	"localisationupdate-desc": "将本地化的信息保持最新"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/i18n/zh-hant.json b/www/wiki/extensions/LocalisationUpdate/i18n/zh-hant.json
new file mode 100644
index 00000000..511b9790
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/i18n/zh-hant.json
@@ -0,0 +1,10 @@
+{
+	"@metadata": {
+		"authors": [
+			"Mark85296341",
+			"Tom Maaswinkel",
+			"LNDDYL"
+		]
+	},
+	"localisationupdate-desc": "將在地化的資訊盡可能保持最新"
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/LocalisationUpdate.php b/www/wiki/extensions/LocalisationUpdate/includes/LocalisationUpdate.php
new file mode 100644
index 00000000..a0b5f044
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/LocalisationUpdate.php
@@ -0,0 +1,73 @@
+<?php
+
+/**
+ * Class for localization update hooks and static methods.
+ */
+class LocalisationUpdate {
+	/**
+	 * Hook: LocalisationCacheRecacheFallback
+	 * @param LocalisationCache $lc
+	 * @param string $code
+	 * @param array &$cache
+	 * @return true
+	 */
+	public static function onRecacheFallback( LocalisationCache $lc, $code, array &$cache ) {
+		$dir = self::getDirectory();
+		if ( !$dir ) {
+			return true;
+		}
+
+		$fileName = "$dir/" . self::getFilename( $code );
+		if ( is_readable( $fileName ) ) {
+			$data = FormatJson::decode( file_get_contents( $fileName ), true );
+			$cache['messages'] = array_merge( $cache['messages'], $data );
+		}
+
+		return true;
+	}
+
+	/**
+	 * Hook: LocalisationCacheRecache
+	 * @param LocalisationCache $lc
+	 * @param string $code
+	 * @param array &$cache
+	 * @return true
+	 */
+	public static function onRecache( LocalisationCache $lc, $code, array &$cache ) {
+		$dir = self::getDirectory();
+		if ( !$dir ) {
+			return true;
+		}
+
+		$codeSequence = array_merge( [ $code ], $cache['fallbackSequence'] );
+		foreach ( $codeSequence as $csCode ) {
+			$fileName = "$dir/" . self::getFilename( $csCode );
+			$cache['deps'][] = new FileDependency( $fileName );
+		}
+
+		return true;
+	}
+
+	/**
+	 * Returns a directory where updated translations are stored.
+	 *
+	 * @return string|false False if not configured.
+	 * @since 1.1
+	 */
+	public static function getDirectory() {
+		global $wgLocalisationUpdateDirectory, $wgCacheDirectory;
+
+		return $wgLocalisationUpdateDirectory ?: $wgCacheDirectory;
+	}
+
+	/**
+	 * Returns a filename where updated translations are stored.
+	 *
+	 * @param string $language Language tag
+	 * @return string
+	 * @since 1.1
+	 */
+	public static function getFilename( $language ) {
+		return "l10nupdate-$language.json";
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/QuickArrayReader.php b/www/wiki/extensions/LocalisationUpdate/includes/QuickArrayReader.php
new file mode 100644
index 00000000..0314ee68
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/QuickArrayReader.php
@@ -0,0 +1,214 @@
+<?php
+
+/**
+ * Quickie parser class that can happily read the subset of PHP we need
+ * for our localization arrays safely.
+ *
+ * Still an order of magnitude slower than eval().
+ */
+class QuickArrayReader {
+	private $vars = [];
+
+	/**
+	 * @param string $string
+	 */
+	function __construct( $string ) {
+		$scalarTypes = [
+			T_LNUMBER => true,
+			T_DNUMBER => true,
+			T_STRING => true,
+			T_CONSTANT_ENCAPSED_STRING => true,
+		];
+		$skipTypes = [
+			T_WHITESPACE => true,
+			T_COMMENT => true,
+			T_DOC_COMMENT => true,
+		];
+		$tokens = token_get_all( $string );
+		$count = count( $tokens );
+		for ( $i = 0; $i < $count; ) {
+			while ( isset( $skipTypes[$tokens[$i][0]] ) ) {
+				$i++;
+			}
+			switch ( $tokens[$i][0] ) {
+				case T_OPEN_TAG:
+					$i++;
+					break;
+				case T_VARIABLE:
+					// '$messages' -> 'messages'
+					$varname = trim( substr( $tokens[$i][1], 1 ) );
+					$varindex = null;
+
+					while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+					}
+
+					if ( $tokens[$i] === '[' ) {
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+
+						if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+							$varindex = $this->parseScalar( $tokens[$i] );
+						} else {
+							throw $this->except( $tokens[$i], 'scalar index' );
+						}
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+
+						if ( $tokens[$i] !== ']' ) {
+							throw $this->except( $tokens[$i], ']' );
+						}
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+					}
+
+					if ( $tokens[$i] !== '=' ) {
+						throw $this->except( $tokens[$i], '=' );
+					}
+					while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+					}
+
+					if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+						$buildval = $this->parseScalar( $tokens[$i] );
+					} elseif ( $tokens[$i][0] === T_ARRAY ) {
+						while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+						}
+						if ( $tokens[$i] !== '(' ) {
+							throw $this->except( $tokens[$i], '(' );
+						}
+						$buildval = [];
+						do {
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( $tokens[$i] === ')' ) {
+								break;
+							}
+							if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+								$key = $this->parseScalar( $tokens[$i] );
+							}
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( $tokens[$i][0] !== T_DOUBLE_ARROW ) {
+								throw $this->except( $tokens[$i], '=>' );
+							}
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( isset( $scalarTypes[$tokens[$i][0]] ) ) {
+								$val = $this->parseScalar( $tokens[$i] );
+							}
+							wfSuppressWarnings();
+							$buildval[$key] = $val;
+							wfRestoreWarnings();
+							while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+							}
+
+							if ( $tokens[$i] === ',' ) {
+								continue;
+							} elseif ( $tokens[$i] === ')' ) {
+								break;
+							} else {
+								throw $this->except( $tokens[$i], ', or )' );
+							}
+						} while ( true );
+					} else {
+						throw $this->except( $tokens[$i], 'scalar or array' );
+					}
+					if ( is_null( $varindex ) ) {
+						$this->vars[$varname] = $buildval;
+					} else {
+						wfSuppressWarnings();
+						$this->vars[$varname][$varindex] = $buildval;
+						wfRestoreWarnings();
+					}
+					while ( isset( $skipTypes[$tokens[++$i][0]] ) ) {
+					}
+					if ( $tokens[$i] !== ';' ) {
+						throw $this->except( $tokens[$i], ';' );
+					}
+					$i++;
+					break;
+				default:
+					throw $this->except( $tokens[$i], 'open tag, whitespace, or variable.' );
+			}
+		}
+	}
+
+	/**
+	 * @param string $got
+	 * @param string $expected
+	 * @return Exception
+	 */
+	private function except( $got, $expected ) {
+		if ( is_array( $got ) ) {
+			$got = token_name( $got[0] ) . " ('" . $got[1] . "')";
+		} else {
+			$got = "'" . $got . "'";
+		}
+
+		return new Exception( "Expected $expected, got $got" );
+	}
+
+	/**
+	 * Parse a scalar value in PHP
+	 *
+	 * @param string $token
+	 *
+	 * @return mixed Parsed value
+	 */
+	function parseScalar( $token ) {
+		if ( is_array( $token ) ) {
+			$str = $token[1];
+		} else {
+			$str = $token;
+		}
+		if ( $str !== '' && $str[0] == '\'' ) {
+			// Single-quoted string
+			// @fixme trim() call is due to mystery bug where whitespace gets
+			// appended to the token; without it we ended up reading in the
+			// extra quote on the end!
+			return strtr( substr( trim( $str ), 1, -1 ),
+				[ '\\\'' => '\'', '\\\\' => '\\' ] );
+		}
+
+		wfSuppressWarnings();
+		if ( $str !== '' && $str[0] == '"' ) {
+			// Double-quoted string
+			// @fixme trim() call is due to mystery bug where whitespace gets
+			// appended to the token; without it we ended up reading in the
+			// extra quote on the end!
+			wfRestoreWarnings();
+			return stripcslashes( substr( trim( $str ), 1, -1 ) );
+		}
+		wfRestoreWarnings();
+
+		if ( substr( $str, 0, 4 ) === 'true' ) {
+			return true;
+		}
+
+		if ( substr( $str, 0, 5 ) === 'false' ) {
+			return false;
+		}
+
+		if ( substr( $str, 0, 4 ) === 'null' ) {
+			return null;
+		}
+
+		// Must be some kind of numeric value, so let PHP's weak typing
+		// be useful for a change
+		return $str;
+	}
+
+	/**
+	 * @param string $varname
+	 * @return null|string|array
+	 */
+	function getVar( $varname ) {
+		if ( isset( $this->vars[$varname] ) ) {
+			return $this->vars[$varname];
+		} else {
+			return null;
+		}
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/Updater.php b/www/wiki/extensions/LocalisationUpdate/includes/Updater.php
new file mode 100644
index 00000000..863dc04a
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/Updater.php
@@ -0,0 +1,204 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Executes the localisation update.
+ */
+class Updater {
+	/**
+	 * Whether the path is a pattern and thus we need to use appropriate
+	 * code for fetching directories.
+	 *
+	 * @param string $path Url
+	 * @return bool
+	 */
+	public function isDirectory( $path ) {
+		$filename = basename( $path );
+		return strpos( $filename, '*' ) !== false;
+	}
+
+	/**
+	 * Expands repository relative path to full url with the given repository
+	 * patterns. Extra variables in $info are used as variables and will be
+	 * replaced the pattern.
+	 *
+	 * @param array $info Component information.
+	 * @param array $repos Repository information.
+	 * @return string
+	 */
+	public function expandRemotePath( $info, $repos ) {
+		$pattern = $repos[$info['repo']];
+		unset( $info['repo'], $info['orig'] );
+
+		// This assumes all other keys are used as variables
+		// in the pattern. For example name -> %NAME%.
+		$keys = [];
+		foreach ( array_keys( $info ) as $key ) {
+			$keys[] = '%' . strtoupper( $key ) . '%';
+		}
+
+		$values = array_values( $info );
+		return str_replace( $keys, $values, $pattern );
+	}
+
+	/**
+	 * Parses translations from given list of files.
+	 *
+	 * @param ReaderFactory $readerFactory Factory to construct parsers.
+	 * @param array $files List of files with their contents as array values.
+	 * @return array List of translations indexed by language code.
+	 */
+	public function readMessages( ReaderFactory $readerFactory, array $files ) {
+		$messages = [];
+
+		foreach ( $files as $filename => $contents ) {
+			$reader = $readerFactory->getReader( $filename );
+			try {
+				$parsed = $reader->parse( $contents );
+			} catch ( \Exception $e ) {
+				trigger_error( __METHOD__ . ": Unable to parse messages from $filename", E_USER_WARNING );
+				continue;
+			}
+
+			foreach ( $parsed as $code => $langMessages ) {
+				if ( !isset( $messages[$code] ) ) {
+					$messages[$code] = [];
+				}
+				$messages[$code] = array_merge( $messages[$code], $langMessages );
+			}
+
+			$c = array_sum( array_map( 'count', $parsed ) );
+			// Useful for debugging, maybe create interface to pass this to the script?
+			# echo "$filename with " . get_class( $reader ) . " and $c\n";
+		}
+
+		return $messages;
+	}
+
+	/**
+	 * Find new and changed translations in $remote and returns them.
+	 *
+	 * @param array $origin
+	 * @param array $remote
+	 * @param array $blacklist Array of message keys to ignore, keys as as array keys.
+	 * @return array
+	 */
+	public function findChangedTranslations( $origin, $remote, $blacklist = [] ) {
+		$changed = [];
+		foreach ( $remote as $key => $value ) {
+			if ( isset( $blacklist[$key] ) ) {
+				continue;
+			}
+
+			if ( !isset( $origin[$key] ) || $value !== $origin[$key] ) {
+				$changed[$key] = $value;
+			}
+		}
+		return $changed;
+	}
+
+	/**
+	 * Fetches files from given Url pattern.
+	 *
+	 * @param FetcherFactory $factory Factory to construct fetchers.
+	 * @param string $path Url to the file or pattern of files.
+	 * @return array List of Urls with file contents as path.
+	 */
+	public function fetchFiles( FetcherFactory $factory, $path ) {
+		$fetcher = $factory->getFetcher( $path );
+
+		if ( $this->isDirectory( $path ) ) {
+			$files = $fetcher->fetchDirectory( $path );
+		} else {
+			$files = [ $path => $fetcher->fetchFile( $path ) ];
+		}
+
+		// Remove files which were not found
+		return array_filter( $files );
+	}
+
+	public function execute(
+		Finder $finder,
+		ReaderFactory $readerFactory,
+		FetcherFactory $fetcherFactory,
+		array $repos,
+		$logger
+	) {
+		$components = $finder->getComponents();
+
+		$updatedMessages = [];
+
+		foreach ( $components as $key => $info ) {
+			$logger->logInfo( "Updating component $key" );
+
+			$originFiles = $this->fetchFiles( $fetcherFactory, $info['orig'] );
+			$remotePath = $this->expandRemotePath( $info, $repos );
+			try {
+				$remoteFiles = $this->fetchFiles( $fetcherFactory, $remotePath );
+			} catch ( \Exception $e ) {
+				$logger->logError( __METHOD__ . ": Unable to fetch messages from $remotePath" );
+				continue;
+			}
+
+			if ( $remoteFiles === [] ) {
+				// Small optimization: if nothing to compare with, skip
+				continue;
+			}
+
+			$originMessages = $this->readMessages( $readerFactory, $originFiles );
+			$remoteMessages = $this->readMessages( $readerFactory, $remoteFiles );
+
+			if ( !isset( $remoteMessages['en'] ) ) {
+				// Could not find remote messages
+				continue;
+			}
+
+			// If remote translation in English is not present or differs, we do not want
+			// translations for other languages for those messages, as they are either not
+			// used in this version of code or can be incompatible.
+			$forbiddenKeys = $this->findChangedTranslations(
+				$originMessages['en'],
+				$remoteMessages['en']
+			);
+
+			// We never accept updates for English strings
+			unset( $originMessages['en'], $remoteMessages['en'] );
+
+			// message: string in all languages; translation: string in one language.
+			foreach ( $remoteMessages as $language => $remoteTranslations ) {
+				// Check for completely new languages
+				$originTranslations = [];
+				if ( isset( $originMessages[$language] ) ) {
+					$originTranslations = $originMessages[$language];
+				}
+
+				$updatedTranslations = $this->findChangedTranslations(
+					$originTranslations,
+					$remoteTranslations,
+					$forbiddenKeys
+				);
+
+				// Avoid empty arrays
+				if ( $updatedTranslations === [] ) {
+					continue;
+				}
+
+				if ( !isset( $updatedMessages[$language] ) ) {
+					$updatedMessages[$language] = [];
+				}
+
+				// In case of conflicts, which should not exist, this prefers the
+				// first translation seen.
+				$updatedMessages[$language] += $updatedTranslations;
+			}
+		}
+
+		return $updatedMessages;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/fetcher/Fetcher.php b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/Fetcher.php
new file mode 100644
index 00000000..62febac8
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/Fetcher.php
@@ -0,0 +1,30 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Interface for classes which fetch files over different protocols and ways.
+ */
+interface Fetcher {
+	/**
+	 * Fetches a single resource.
+	 *
+	 * @param string $url
+	 * @return bool|string False on failure.
+	 */
+	public function fetchFile( $url );
+
+	/**
+	 * Fetch a list of resources. This has the benefit of being able to pick up
+	 * new languages as they appear if languages are stored in separate files.
+	 *
+	 * @param string $pattern
+	 * @return array
+	 */
+	public function fetchDirectory( $pattern );
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/fetcher/FetcherFactory.php b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/FetcherFactory.php
new file mode 100644
index 00000000..9273c935
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/FetcherFactory.php
@@ -0,0 +1,25 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Constructs fetchers based on the repository urls.
+ */
+class FetcherFactory {
+	public function getFetcher( $path ) {
+		if ( strpos( $path, 'https://raw.github.com/' ) === 0 ) {
+			return new GitHubFetcher();
+		} elseif ( strpos( $path, 'http://' ) === 0 ) {
+			return new HttpFetcher();
+		} elseif ( strpos( $path, 'https://' ) === 0 ) {
+			return new HttpFetcher();
+		} else {
+			return new FileSystemFetcher();
+		}
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/fetcher/FileSystemFetcher.php b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/FileSystemFetcher.php
new file mode 100644
index 00000000..43daa65d
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/FileSystemFetcher.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Accesses file system directly.
+ */
+class FileSystemFetcher implements Fetcher {
+	/**
+	 * @param string $url
+	 *
+	 * @return bool|string
+	 */
+	public function fetchFile( $url ) {
+		// Remove the protocol prefix
+		$url = preg_replace( '~^file://~', '', $url );
+
+		if ( !is_readable( $url ) ) {
+			return false;
+		}
+
+		return file_get_contents( $url );
+	}
+
+	/**
+	 * @param string $pattern
+	 *
+	 * @return array
+	 */
+	public function fetchDirectory( $pattern ) {
+		// Remove the protocol prefix
+		$pattern = preg_replace( '~^file://~', '', $pattern );
+
+		$data = [];
+		foreach ( glob( $pattern ) as $file ) {
+			if ( is_readable( $file ) ) {
+				$data["file://$file"] = file_get_contents( $file );
+			}
+		}
+		return $data;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/fetcher/GitHubFetcher.php b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/GitHubFetcher.php
new file mode 100644
index 00000000..f8bea9c1
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/GitHubFetcher.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * This class uses GitHub api to obtain a list of files present in a directory
+ * to avoid fetching files that don't exist.
+ *
+ * @todo Could use file hashes to 1) avoid fetching files with same hash as
+ * the source. 2) avoid fetching files which haven't changed since last check
+ * if we store them.
+ */
+class GitHubFetcher extends HttpFetcher {
+	/**
+	 * @param string $pattern
+	 *
+	 * @return array
+	 * @throws \Exception
+	 */
+	public function fetchDirectory( $pattern ) {
+		$domain = preg_quote( 'https://raw.github.com/', '~' );
+		$p = "~^$domain(?P<org>[^/]+)/(?P<repo>[^/]+)/(?P<branch>[^/]+)/(?P<path>.+)/.+$~";
+		preg_match( $p, $pattern, $m );
+
+		$apiURL = "https://api.github.com/repos/{$m['org']}/{$m['repo']}/contents/{$m['path']}";
+		$json = \Http::get( $apiURL );
+		if ( !$json ) {
+			throw new \Exception( "Unable to get directory listing for {$m['org']}/{$m['repo']}" );
+		}
+
+		$files = [];
+		$json = \FormatJson::decode( $json, true );
+		foreach ( $json as $fileinfo ) {
+			$fileurl = dirname( $pattern ) . '/' . $fileinfo['name'];
+			$file = $this->fetchFile( $fileurl );
+			if ( $file ) {
+				$files[$fileurl] = $file;
+			}
+		}
+		return $files;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/fetcher/HttpFetcher.php b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/HttpFetcher.php
new file mode 100644
index 00000000..72988e98
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/fetcher/HttpFetcher.php
@@ -0,0 +1,49 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Fetches files over HTTP(s).
+ */
+class HttpFetcher implements Fetcher {
+	/**
+	 * @param string $url
+	 *
+	 * @return bool|string
+	 */
+	public function fetchFile( $url ) {
+		return \Http::get( $url );
+	}
+
+	/**
+	 * This is horribly inefficient. Subclasses have more efficient
+	 * implementation of this.
+	 * @param string $pattern
+	 * @return array
+	 */
+	public function fetchDirectory( $pattern ) {
+		$files = [];
+
+		$languages = \Language::fetchLanguageNames( null, 'mwfile' );
+
+		foreach ( array_keys( $languages ) as $code ) {
+			// Hack for core
+			if ( strpos( $pattern, 'Messages*.php' ) !== false ) {
+				$code = ucfirst( strtr( $code, '-', '_' ) );
+			}
+
+			$url = str_replace( '*', $code, $pattern );
+			$file = $this->fetchFile( $url );
+			if ( $file ) {
+				$files[$url] = $file;
+			}
+		}
+
+		return $files;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/finder/Finder.php b/www/wiki/extensions/LocalisationUpdate/includes/finder/Finder.php
new file mode 100644
index 00000000..acebc42a
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/finder/Finder.php
@@ -0,0 +1,124 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Interface for classes which provide list of components, which should be
+ * included for l10n updates.
+ */
+class Finder {
+
+	/**
+	 * @var array
+	 */
+	private $php;
+
+	/**
+	 * @var array
+	 */
+	private $json;
+
+	/**
+	 * @var string
+	 */
+	private $core;
+	/**
+	 * @param array $php See $wgExtensionMessagesFiles
+	 * @param array $json See $wgMessagesDirs
+	 * @param string $core Absolute path to MediaWiki core
+	 */
+	public function __construct( $php, $json, $core ) {
+		$this->php = $php;
+		$this->json = $json;
+		$this->core = $core;
+	}
+
+	/**
+	 * @return array
+	 */
+	public function getComponents() {
+		$components = [];
+
+		// For older versions of Mediawiki, pull json updates even though its still using php
+		if ( !isset( $this->json['core'] ) ) {
+			$components['core'] = [
+				'repo' => 'mediawiki',
+				'orig' => "file://{$this->core}/languages/messages/Messages*.php",
+				'path' => 'languages/messages/i18n/*.json',
+			];
+		}
+
+		foreach ( $this->json as $key => $value ) {
+			// Json should take priority if both exist
+			unset( $this->php[$key] );
+
+			foreach ( (array)$value as $subkey => $subvalue ) {
+				// Mediawiki core files
+				$matches = [];
+				if ( preg_match( '~/(?P<path>(?:includes|languages|resources)/.*)$~', $subvalue, $matches ) ) {
+					$components["$key-$subkey"] = [
+						'repo' => 'mediawiki',
+						'orig' => "file://$value/*.json",
+						'path' => "{$matches['path']}/*.json",
+					];
+					continue;
+				}
+
+				$item = $this->getItem( 'extensions', $subvalue );
+				if ( $item !== null ) {
+					$item['repo'] = 'extension';
+					$components["$key-$subkey"] = $item;
+					continue;
+				}
+
+				$item = $this->getItem( 'skins', $subvalue );
+				if ( $item !== null ) {
+					$item['repo'] = 'skin';
+					$components["$key-$subkey"] = $item;
+					continue;
+				}
+			}
+		}
+
+		foreach ( $this->php as $key => $value ) {
+			$matches = [];
+			$ok = preg_match( '~/extensions/(?P<name>[^/]+)/(?P<path>.*\.i18n\.php)$~', $value, $matches );
+			if ( !$ok ) {
+				continue;
+			}
+
+			$components[$key] = [
+				'repo' => 'extension',
+				'name' => $matches['name'],
+				'orig' => "file://$value",
+				'path' => $matches['path'],
+			];
+		}
+
+		return $components;
+	}
+
+	/**
+	 * @param string $dir extensions or skins
+	 * @param string $subvalue
+	 * @return array|null
+	 */
+	private function getItem( $dir, $subvalue ) {
+		// This ignores magic, alias etc. non message files
+		$matches = [];
+		if ( !preg_match( "~/$dir/(?P<name>[^/]+)/(?P<path>.*)$~", $subvalue, $matches ) ) {
+			return null;
+		}
+
+		return [
+			'name' => $matches['name'],
+			'orig' => "file://$subvalue/*.json",
+			'path' => "{$matches['path']}/*.json",
+		];
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/reader/JSONReader.php b/www/wiki/extensions/LocalisationUpdate/includes/reader/JSONReader.php
new file mode 100644
index 00000000..e8613660
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/reader/JSONReader.php
@@ -0,0 +1,37 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Reads MediaWiki JSON i18n files.
+ */
+class JSONReader implements Reader {
+	/// @var string Language tag
+	protected $code;
+
+	public function __construct( $code = null ) {
+		$this->code = $code;
+	}
+
+	/**
+	 * @param string $contents
+	 *
+	 * @return array
+	 */
+	public function parse( $contents ) {
+		$messages = \FormatJson::decode( $contents, true );
+		unset( $messages['@metadata'] );
+
+		if ( $this->code ) {
+			return [ $this->code => $messages ];
+		}
+
+		// Assuming that the array is keyed by language codes
+		return $messages;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/reader/PHPReader.php b/www/wiki/extensions/LocalisationUpdate/includes/reader/PHPReader.php
new file mode 100644
index 00000000..43e4db25
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/reader/PHPReader.php
@@ -0,0 +1,61 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Reads MediaWiki PHP i18n files.
+ */
+class PHPReader implements Reader {
+	/// @var string Language tag
+	protected $code;
+
+	public function __construct( $code = null ) {
+		$this->code = $code;
+	}
+
+	/**
+	 * @param string $contents
+	 *
+	 * @return array
+	 */
+	public function parse( $contents ) {
+		if ( strpos( $contents, '$messages' ) === false ) {
+			// This happens for some core languages that only have a fallback.
+			return [];
+		}
+
+		$php = $this->cleanupFile( $contents );
+		$reader = new \QuickArrayReader( "<?php $php" );
+		$messages = $reader->getVar( 'messages' );
+
+		if ( $this->code ) {
+			return [ $this->code => $messages ];
+		}
+
+		// Assuming that the array is keyed by language codes
+		return $messages;
+	}
+
+	/**
+	 * Removes all unneeded content from a file and returns it.
+	 *
+	 * @param string $contents String
+	 * @return string PHP code without PHP tags
+	 */
+	protected function cleanupFile( $contents ) {
+		// We hate the windows vs linux linebreaks.
+		$contents = preg_replace( '/\r\n?/', "\n", $contents );
+
+		// We only want message arrays.
+		$results = [];
+		preg_match_all( '/\$messages(?:.*\s)*?\);/', $contents, $results );
+
+		// But we want them all in one string.
+		return implode( "\n\n", $results[0] );
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/reader/Reader.php b/www/wiki/extensions/LocalisationUpdate/includes/reader/Reader.php
new file mode 100644
index 00000000..fd37322e
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/reader/Reader.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Interface for file readers.
+ */
+interface Reader {
+	/**
+	 * Returns a list of messages indexed by language code. Example
+	 *  array( 'en' => array( 'key' => 'value' ) );
+	 * @param string $contents File contents as a string.
+	 * @return array
+	 */
+	public function parse( $contents );
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/includes/reader/ReaderFactory.php b/www/wiki/extensions/LocalisationUpdate/includes/reader/ReaderFactory.php
new file mode 100644
index 00000000..44bc5e40
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/includes/reader/ReaderFactory.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Constructs readers for files based on the names.
+ */
+class ReaderFactory {
+	/**
+	 * Constructs a suitable reader for a given path.
+	 * @param string $filename Usually a relative path to the file name.
+	 * @return Reader
+	 * @throws Exception
+	 */
+	public function getReader( $filename ) {
+		if ( preg_match( '/i18n\.php$/', $filename ) ) {
+			return new PHPReader();
+		}
+
+		// Ugly hack for core i18n files
+		if ( preg_match( '/Messages(.*)\.php$/', $filename ) ) {
+			$code = \Language::getCodeFromFileName( basename( $filename ), 'Messages' );
+			return new PHPReader( $code );
+		}
+
+		if ( preg_match( '/\.json/', $filename ) ) {
+			$code = basename( $filename, '.json' );
+			return new JSONReader( $code );
+		}
+
+		throw new \Exception( "Unknown file format: " . $filename );
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/phpcs.xml b/www/wiki/extensions/LocalisationUpdate/phpcs.xml
new file mode 100644
index 00000000..32816b38
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/phpcs.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<ruleset>
+	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki">
+		<exclude name="MediaWiki.Commenting.FunctionComment.MissingParamComment" />
+		<exclude name="MediaWiki.Commenting.FunctionComment.MissingParamName" />
+		<exclude name="MediaWiki.Commenting.FunctionComment.MissingParamTag" />
+		<exclude name="MediaWiki.Commenting.FunctionComment.MissingReturn" />
+		<exclude name="MediaWiki.Commenting.FunctionComment.MissingDocumentationPublic" />
+		<exclude name="MediaWiki.Files.ClassMatchesFilename.NotMatch" />
+		<exclude name="MediaWiki.WhiteSpace.SpaceBeforeSingleLineComment.NewLineComment" />
+	</rule>
+	<file>.</file>
+	<arg name="extensions" value="php,php5,inc" />
+	<arg name="encoding" value="UTF-8" />
+</ruleset>
diff --git a/www/wiki/extensions/LocalisationUpdate/reader/JSONReader.php b/www/wiki/extensions/LocalisationUpdate/reader/JSONReader.php
new file mode 100644
index 00000000..fdc4e1d6
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/reader/JSONReader.php
@@ -0,0 +1,32 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Reads MediaWiki JSON i18n files.
+ */
+class JSONReader implements Reader {
+	/// @var string Language tag
+	protected $code;
+
+	public function __construct( $code = null ) {
+		$this->code = $code;
+	}
+
+	public function parse( $contents ) {
+		$messages = \FormatJson::decode( $contents, true );
+		unset( $messages['@metadata'] );
+
+		if ( $this->code ) {
+			return [ $this->code => $messages ];
+		}
+
+		// Assuming that the array is keyed by language codes
+		return $messages;
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/reader/PHPReader.php b/www/wiki/extensions/LocalisationUpdate/reader/PHPReader.php
new file mode 100644
index 00000000..f314744b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/reader/PHPReader.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Reads MediaWiki PHP i18n files.
+ */
+class PHPReader implements Reader {
+	/// @var string Language tag
+	protected $code;
+
+	public function __construct( $code = null ) {
+		$this->code = $code;
+	}
+
+	public function parse( $contents ) {
+		if ( strpos( $contents, '$messages' ) === false ) {
+			// This happens for some core languages that only have a fallback.
+			return [];
+		}
+
+		$php = $this->cleanupFile( $contents );
+		$reader = new \QuickArrayReader( "<?php $php" );
+		$messages = $reader->getVar( 'messages' );
+
+		if ( $this->code ) {
+			return [ $this->code => $messages ];
+		}
+
+		// Assuming that the array is keyed by language codes
+		return $messages;
+	}
+
+	/**
+	 * Removes all unneeded content from a file and returns it.
+	 *
+	 * @param string $contents String
+	 * @return string PHP code without PHP tags
+	 */
+	protected function cleanupFile( $contents ) {
+		// We hate the windows vs linux linebreaks.
+		$contents = preg_replace( '/\r\n?/', "\n", $contents );
+
+		// We only want message arrays.
+		$results = [];
+		preg_match_all( '/\$messages(?:.*\s)*?\);/', $contents, $results );
+
+		// But we want them all in one string.
+		return implode( "\n\n", $results[0] );
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/reader/Reader.php b/www/wiki/extensions/LocalisationUpdate/reader/Reader.php
new file mode 100644
index 00000000..8c263ff0
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/reader/Reader.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Interface for file readers.
+ */
+interface Reader {
+	/**
+	 * Returns a list of messages indexed by language code. Example
+	 *  array( 'en' => array( 'key' => 'value' ) );
+	 * @param string $contents File contents as a string.
+	 * @return array
+	 */
+	public function parse( $contents );
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/reader/ReaderFactory.php b/www/wiki/extensions/LocalisationUpdate/reader/ReaderFactory.php
new file mode 100644
index 00000000..ab5cdf1b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/reader/ReaderFactory.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0+
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * Constructs readers for files based on the names.
+ */
+class ReaderFactory {
+	/**
+	 * Constructs a suitable reader for a given path.
+	 * @param string $filename Usually a relative path to the file name.
+	 * @return Reader
+	 * @throw Exception
+	 */
+	public function getReader( $filename ) {
+		if ( preg_match( '/i18n\.php$/', $filename ) ) {
+			return new PHPReader();
+		}
+
+		// Ugly hack for core i18n files
+		if ( preg_match( '/Messages(.*)\.php$/', $filename ) ) {
+			$code = \Language::getCodeFromFileName( basename( $filename ), 'Messages' );
+			return new PHPReader( $code );
+		}
+
+		if ( preg_match( '/\.json/', $filename ) ) {
+			$code = basename( $filename, '.json' );
+			return new JSONReader( $code );
+		}
+
+		throw new \Exception( "Unknown file format: " . $filename );
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/tests/phan/config.php b/www/wiki/extensions/LocalisationUpdate/tests/phan/config.php
new file mode 100644
index 00000000..f2660b8a
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/tests/phan/config.php
@@ -0,0 +1,3 @@
+<?php
+
+return require __DIR__ . '/../../vendor/mediawiki/mediawiki-phan-config/src/config.php';
diff --git a/www/wiki/extensions/LocalisationUpdate/tests/phpunit/Makefile b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/Makefile
new file mode 100644
index 00000000..e98c12ca
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/Makefile
@@ -0,0 +1,12 @@
+ifndef MW_INSTALL_PATH
+	MW_INSTALL_PATH=../../../..
+endif
+
+DIRS=reader
+
+default:
+	php ${MW_INSTALL_PATH}/tests/phpunit/phpunit.php .
+
+.PHONY: *Test.php $(DIRS)
+*Test.php $(DIRS):
+	php ${MW_INSTALL_PATH}/tests/phpunit/phpunit.php $@
diff --git a/www/wiki/extensions/LocalisationUpdate/tests/phpunit/UpdaterTest.php b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/UpdaterTest.php
new file mode 100644
index 00000000..00c45e12
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/UpdaterTest.php
@@ -0,0 +1,89 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+use PHPUnit4And6Compat;
+
+/**
+ * @covers \LocalisationUpdate\Updater
+ */
+class UpdaterTest extends \PHPUnit\Framework\TestCase {
+	use PHPUnit4And6Compat;
+
+	public function testIsDirectory() {
+		$updater = new Updater();
+
+		$this->assertTrue(
+			$updater->isDirectory( '/IP/extensions/Translate/i18n/*.json' ),
+			'Extension json files are a file pattern'
+		);
+
+		$this->assertFalse(
+			$updater->isDirectory( '/IP/extensions/Translate/Translate.i18n.php' ),
+			'Extension php file is not a pattern'
+		);
+	}
+
+	public function testExpandRemotePath() {
+		$updater = new Updater();
+		$repos = [ 'main' => 'file:///repos/%NAME%/%SOME-VAR%' ];
+
+		$info = [
+			'repo' => 'main',
+			'name' => 'product',
+			'some-var' => 'file',
+		];
+		$this->assertEquals(
+			'file:///repos/product/file',
+			$updater->expandRemotePath( $info, $repos ),
+			'Variables are expanded correctly'
+		);
+	}
+
+	public function testReadMessages() {
+		$updater = $updater = new Updater();
+
+		$input = [ 'file' => 'Hello World!' ];
+		$output = [ 'en' => [ 'key' => $input['file'] ] ];
+
+		$reader = $this->getMock( 'LocalisationUpdate\Reader' );
+		$reader
+			->expects( $this->once() )
+			->method( 'parse' )
+			->will( $this->returnValue( $output ) );
+
+		$factory = $this->getMock( 'LocalisationUpdate\ReaderFactory' );
+		$factory
+			->expects( $this->once() )
+			->method( 'getReader' )
+			->will( $this->returnValue( $reader ) );
+
+		$observed = $updater->readMessages( $factory, $input );
+		$this->assertEquals( $output, $observed, 'Tries to parse given file' );
+	}
+
+	public function testFindChangedTranslations() {
+		$updater = $updater = new Updater();
+
+		$origin = [
+			'A' => '1',
+			'C' => '3',
+			'D' => '4',
+		];
+		$remote = [
+			'A' => '1', // No change key
+			'B' => '2', // New key
+			'C' => '33', // Changed key
+			'D' => '44', // Blacklisted key
+		];
+		$blacklist = [ 'D' => 0 ];
+		$expected = [ 'B' => '2', 'C' => '33' ];
+		$observed = $updater->findChangedTranslations( $origin, $remote, $blacklist );
+		$this->assertEquals( $expected, $observed, 'Changed and new keys returned' );
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/tests/phpunit/finder/FinderTest.php b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/finder/FinderTest.php
new file mode 100644
index 00000000..1b4db0f4
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/finder/FinderTest.php
@@ -0,0 +1,86 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * @covers \LocalisationUpdate\Finder
+ */
+class FinderTest extends \PHPUnit\Framework\TestCase {
+	public function testGetComponents() {
+		$finder = new Finder(
+			[
+				'TranslateSearch' => '/IP/extensions/Translate/TranslateSearch.i18n.php',
+				'Babel' => '/IP/extensions/Babel/Babel.i18n.php',
+			],
+			[
+				'Babel' => '/IP/extensions/Babel/i18n',
+				'Door' => [
+					'core' => '/IP/extensions/Door/i18n/core',
+					'extra' => '/IP/extensions/Door/i18n/extra',
+				],
+				'Vector' => '/IP/skins/Vector/i18n',
+			],
+			'/IP'
+		);
+		$observed = $finder->getComponents();
+
+		$expected = [
+			'repo' => 'mediawiki',
+			'orig' => "file:///IP/languages/messages/Messages*.php",
+			'path' => 'languages/messages/i18n/*.json',
+		];
+
+		$this->assertArrayHasKey( 'core', $observed );
+		$this->assertEquals( $expected, $observed['core'], 'Core php file' );
+
+		$expected = [
+			'repo' => 'extension',
+			'name' => 'Translate',
+			'orig' => 'file:///IP/extensions/Translate/TranslateSearch.i18n.php',
+			'path' => 'TranslateSearch.i18n.php'
+		];
+		$this->assertArrayHasKey( 'TranslateSearch', $observed );
+		$this->assertEquals( $expected, $observed['TranslateSearch'], 'PHP only extension' );
+
+		$expected = [
+			'repo' => 'extension',
+			'name' => 'Babel',
+			'orig' => 'file:///IP/extensions/Babel/i18n/*.json',
+			'path' => 'i18n/*.json'
+		];
+		$this->assertArrayHasKey( 'Babel-0', $observed );
+		$this->assertEquals( $expected, $observed['Babel-0'], 'PHP&JSON extension' );
+
+		$expected = [
+			'repo' => 'extension',
+			'name' => 'Door',
+			'orig' => 'file:///IP/extensions/Door/i18n/core/*.json',
+			'path' => 'i18n/core/*.json'
+		];
+		$this->assertArrayHasKey( 'Door-core', $observed );
+		$this->assertEquals( $expected, $observed['Door-core'], 'Multidir json extension' );
+
+		$expected = [
+			'repo' => 'extension',
+			'name' => 'Door',
+			'orig' => 'file:///IP/extensions/Door/i18n/extra/*.json',
+			'path' => 'i18n/extra/*.json'
+		];
+		$this->assertArrayHasKey( 'Door-extra', $observed );
+		$this->assertEquals( $expected, $observed['Door-extra'], 'Multidir json extension' );
+
+		$expected = [
+			'repo' => 'skin',
+			'name' => 'Vector',
+			'orig' => 'file:///IP/skins/Vector/i18n/*.json',
+			'path' => 'i18n/*.json'
+		];
+		$this->assertArrayHasKey( 'Vector-0', $observed );
+		$this->assertEquals( $expected, $observed['Vector-0'], 'Json skin' );
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/tests/phpunit/reader/JSONReaderTest.php b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/reader/JSONReaderTest.php
new file mode 100644
index 00000000..11f0a03b
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/reader/JSONReaderTest.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * @covers \LocalisationUpdate\JSONReader
+ */
+class JSONReaderTest extends \PHPUnit\Framework\TestCase {
+	/**
+	 * @dataProvider parseProvider
+	 */
+	public function testParse( $input, $expected, $comment ) {
+		$reader = new JSONReader( 'xx' );
+		$observed = $reader->parse( $input );
+		$this->assertEquals( $expected, $observed['xx'], $comment );
+	}
+
+	public function parseProvider() {
+		return [
+			[
+				'{}',
+				[],
+				'empty file',
+			],
+			[
+				'{"key":"value"}',
+				[ 'key' => 'value' ],
+				'file with one string',
+			],
+			[
+				'{"@metadata":{"authors":["Nike"]},"key":"value2"}',
+				[ 'key' => 'value2' ],
+				'@metadata is ignored',
+			]
+		];
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/tests/phpunit/reader/ReaderFactoryTest.php b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/reader/ReaderFactoryTest.php
new file mode 100644
index 00000000..86776395
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/tests/phpunit/reader/ReaderFactoryTest.php
@@ -0,0 +1,43 @@
+<?php
+/**
+ * @file
+ * @author Niklas Laxström
+ * @license GPL-2.0-or-later
+ */
+
+namespace LocalisationUpdate;
+
+/**
+ * @covers \LocalisationUpdate\ReaderFactory
+ */
+class ReaderFactoryTest extends \PHPUnit\Framework\TestCase {
+	/**
+	 * @dataProvider getReaderProvider
+	 */
+	public function testGetReader( $input, $expected, $comment ) {
+		$factory = new ReaderFactory();
+		$reader = $factory->getReader( $input );
+		$observed = get_class( $reader );
+		$this->assertEquals( $expected, $observed, $comment );
+	}
+
+	public function getReaderProvider() {
+		return [
+			[
+				'languages/messages/MessagesFi.php',
+				'LocalisationUpdate\PHPReader',
+				'core php file',
+			],
+			[
+				'extensions/Translate/Translate.i18n.php',
+				'LocalisationUpdate\PHPReader',
+				'extension php file',
+			],
+			[
+				'extension/Translate/i18n/core/de.json',
+				'LocalisationUpdate\JSONReader',
+				'extension json file',
+			],
+		];
+	}
+}
diff --git a/www/wiki/extensions/LocalisationUpdate/update.php b/www/wiki/extensions/LocalisationUpdate/update.php
new file mode 100644
index 00000000..a8ed7ead
--- /dev/null
+++ b/www/wiki/extensions/LocalisationUpdate/update.php
@@ -0,0 +1,93 @@
+<?php
+
+$IP = strval( getenv( 'MW_INSTALL_PATH' ) ) !== ''
+	? getenv( 'MW_INSTALL_PATH' )
+	: realpath( __DIR__ . '/../../' );
+
+require "$IP/maintenance/Maintenance.php";
+
+class Update extends Maintenance {
+	public function __construct() {
+		parent::__construct();
+		$this->mDescription = 'Fetches translation updates to MediaWiki core, skins and extensions.';
+		$this->addOption(
+			'repoid',
+			'Fetch translations from repositories identified by this',
+			false, /*required*/
+			true /*has arg*/
+		);
+
+		$this->requireExtension( 'LocalisationUpdate' );
+	}
+
+	public function execute() {
+		// Prevent the script from timing out
+		set_time_limit( 0 );
+		ini_set( "max_execution_time", 0 );
+		ini_set( 'memory_limit', -1 );
+
+		global $IP;
+		global $wgExtensionMessagesFiles;
+		global $wgLocalisationUpdateRepositories;
+		global $wgLocalisationUpdateRepository;
+
+		$dir = LocalisationUpdate::getDirectory();
+		if ( !$dir ) {
+			$this->error( "No cache directory configured", true );
+			return;
+		}
+
+		$lc = Language::getLocalisationCache();
+		$messagesDirs = $lc->getMessagesDirs();
+
+		$finder = new LocalisationUpdate\Finder( $wgExtensionMessagesFiles, $messagesDirs, $IP );
+		$readerFactory = new LocalisationUpdate\ReaderFactory();
+		$fetcherFactory = new LocalisationUpdate\FetcherFactory();
+
+		$repoid = $this->getOption( 'repoid', $wgLocalisationUpdateRepository );
+		if ( !isset( $wgLocalisationUpdateRepositories[$repoid] ) ) {
+			$known = implode( ', ', array_keys( $wgLocalisationUpdateRepositories ) );
+			$this->error( "Unknown repoid $repoid; known: $known", true );
+			return;
+		}
+		$repos = $wgLocalisationUpdateRepositories[$repoid];
+
+		// output and error methods are protected, hence we add logInfo and logError
+		// public methods, that hopefully won't conflict in the future with the base class.
+		$logger = $this;
+
+		// Do it ;)
+		$updater = new LocalisationUpdate\Updater();
+		$updatedMessages = $updater->execute(
+			$finder,
+			$readerFactory,
+			$fetcherFactory,
+			$repos,
+			$logger
+		);
+
+		// Store it ;)
+		$count = array_sum( array_map( 'count', $updatedMessages ) );
+		if ( !$count ) {
+			$this->output( "Found no new translations\n" );
+			return;
+		}
+
+		foreach ( $updatedMessages as $language => $messages ) {
+			$filename = "$dir/" . LocalisationUpdate::getFilename( $language );
+			file_put_contents( $filename, FormatJson::encode( $messages, true ) );
+		}
+		$this->output( "Saved $count new translations\n" );
+	}
+
+	public function logInfo( $msg ) {
+		$this->output( $msg . "\n" );
+	}
+
+	public function logError( $msg ) {
+		$this->error( $msg );
+	}
+}
+
+$maintClass = Update::class;
+require_once RUN_MAINTENANCE_IF_MAIN;