SECURITY: rate-limit and prevent blocked users from changing email

[lhc/web/wiklou.git] / includes / DefaultSettings.php

<?php
/**
 * Default values for MediaWiki configuration settings.
 *
 *
 *                 NEVER EDIT THIS FILE
 *
 *
 * To customize your installation, edit "LocalSettings.php". If you make
 * changes here, they will be lost on next upgrade of MediaWiki!
 *
 * In this file, variables whose default values depend on other
 * variables are set to false. The actual default value of these variables
 * will only be set in Setup.php, taking into account any custom settings
 * performed in LocalSettings.php.
 *
 * Documentation is in the source and on:
 * https://www.mediawiki.org/wiki/Manual:Configuration_settings
 *
 * @warning  Note: this (and other things) will break if the autoloader is not
 * enabled. Please include includes/AutoLoader.php before including this file.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 */
use MediaWiki\MediaWikiServices;

/**
 * @cond file_level_code
 * This is not a valid entry point, perform no further processing unless
 * MEDIAWIKI is defined
 */
if ( !defined( 'MEDIAWIKI' ) ) {
        echo "This file is part of MediaWiki and is not a valid entry point\n";
        die( 1 );
}

/** @endcond */

/**
 * wgConf hold the site configuration.
 * Not used for much in a default install.
 * @since 1.5
 */
$wgConf = new SiteConfiguration;

/**
 * Registry of factory functions to create config objects:
 * The 'main' key must be set, and the value should be a valid
 * callable.
 * @since 1.23
 */
$wgConfigRegistry = [
        'main' => 'GlobalVarConfig::newInstance'
];

/**
 * MediaWiki version number
 * @since 1.2
 */
$wgVersion = '1.34.0-alpha';

/**
 * Name of the site. It must be changed in LocalSettings.php
 */
$wgSitename = 'MediaWiki';

/**
 * When the wiki is running behind a proxy and this is set to true, assumes that the proxy exposes
 * the wiki on the standard ports (443 for https and 80 for http).
 * @var bool
 * @since 1.26
 */
$wgAssumeProxiesUseDefaultProtocolPorts = true;

/**
 * URL of the server.
 *
 * @par Example:
 * @code
 * $wgServer = 'http://example.com';
 * @endcode
 *
 * This is usually detected correctly by MediaWiki. If MediaWiki detects the
 * wrong server, it will redirect incorrectly after you save a page. In that
 * case, set this variable to fix it.
 *
 * If you want to use protocol-relative URLs on your wiki, set this to a
 * protocol-relative URL like '//example.com' and set $wgCanonicalServer
 * to a fully qualified URL.
 */
$wgServer = WebRequest::detectServer();

/**
 * Canonical URL of the server, to use in IRC feeds and notification e-mails.
 * Must be fully qualified, even if $wgServer is protocol-relative.
 *
 * Defaults to $wgServer, expanded to a fully qualified http:// URL if needed.
 * @since 1.18
 */
$wgCanonicalServer = false;

/**
 * Server name. This is automatically computed by parsing the bare
 * hostname out of $wgCanonicalServer. It should not be customized.
 * @since 1.24
 */
$wgServerName = false;

/************************************************************************//**
 * @name   Script path settings
 * @{
 */

/**
 * The path we should point to.
 * It might be a virtual path in case with use apache mod_rewrite for example.
 *
 * This *needs* to be set correctly.
 *
 * Other paths will be set to defaults based on it unless they are directly
 * set in LocalSettings.php
 */
$wgScriptPath = '/wiki';

/**
 * Whether to support URLs like index.php/Page_title These often break when PHP
 * is set up in CGI mode. PATH_INFO *may* be correct if cgi.fix_pathinfo is set,
 * but then again it may not; lighttpd converts incoming path data to lowercase
 * on systems with case-insensitive filesystems, and there have been reports of
 * problems on Apache as well.
 *
 * To be safe we'll continue to keep it off by default.
 *
 * Override this to false if $_SERVER['PATH_INFO'] contains unexpectedly
 * incorrect garbage, or to true if it is really correct.
 *
 * The default $wgArticlePath will be set based on this value at runtime, but if
 * you have customized it, having this incorrectly set to true can cause
 * redirect loops when "pretty URLs" are used.
 * @since 1.2.1
 */
$wgUsePathInfo = ( strpos( PHP_SAPI, 'cgi' ) === false ) &&
        ( strpos( PHP_SAPI, 'apache2filter' ) === false ) &&
        ( strpos( PHP_SAPI, 'isapi' ) === false );

/**@}*/

/************************************************************************//**
 * @name   URLs and file paths
 *
 * These various web and file path variables are set to their defaults
 * in Setup.php if they are not explicitly set from LocalSettings.php.
 *
 * These will relatively rarely need to be set manually, unless you are
 * splitting style sheets or images outside the main document root.
 *
 * In this section, a "path" is usually a host-relative URL, i.e. a URL without
 * the host part, that starts with a slash. In most cases a full URL is also
 * acceptable. A "directory" is a local file path.
 *
 * In both paths and directories, trailing slashes should not be included.
 *
 * @{
 */

/**
 * The URL path to index.php.
 *
 * Defaults to "{$wgScriptPath}/index.php".
 */
$wgScript = false;

/**
 * The URL path to load.php.
 *
 * Defaults to "{$wgScriptPath}/load.php".
 * @since 1.17
 */
$wgLoadScript = false;

/**
 * The URL path of the skins directory.
 * Defaults to "{$wgResourceBasePath}/skins".
 * @since 1.3
 */
$wgStylePath = false;
$wgStyleSheetPath = &$wgStylePath;

/**
 * The URL path of the skins directory. Should not point to an external domain.
 * Defaults to "{$wgScriptPath}/skins".
 * @since 1.17
 */
$wgLocalStylePath = false;

/**
 * The URL path of the extensions directory.
 * Defaults to "{$wgResourceBasePath}/extensions".
 * @since 1.16
 */
$wgExtensionAssetsPath = false;

/**
 * Filesystem extensions directory.
 * Defaults to "{$IP}/extensions".
 * @since 1.25
 */
$wgExtensionDirectory = "{$IP}/extensions";

/**
 * Filesystem stylesheets directory.
 * Defaults to "{$IP}/skins".
 * @since 1.3
 */
$wgStyleDirectory = "{$IP}/skins";

/**
 * The URL path for primary article page views. This path should contain $1,
 * which is replaced by the article title.
 *
 * Defaults to "{$wgScript}/$1" or "{$wgScript}?title=$1",
 * depending on $wgUsePathInfo.
 */
$wgArticlePath = false;

/**
 * The URL path for the images directory.
 * Defaults to "{$wgScriptPath}/images".
 */
$wgUploadPath = false;

/**
 * The filesystem path of the images directory. Defaults to "{$IP}/images".
 */
$wgUploadDirectory = false;

/**
 * Directory where the cached page will be saved.
 * Defaults to "{$wgUploadDirectory}/cache".
 */
$wgFileCacheDirectory = false;

/**
 * The URL path of the wiki logo. The logo size should be 135x135 pixels.
 * Defaults to "$wgResourceBasePath/resources/assets/wiki.png".
 */
$wgLogo = false;

/**
 * Array with URL paths to HD versions of the wiki logo. The scaled logo size
 * should be under 135x155 pixels.
 * Only 1.5x and 2x versions are supported.
 *
 * @par Example:
 * @code
 * $wgLogoHD = [
 *      "1.5x" => "path/to/1.5x_version.png",
 *      "2x" => "path/to/2x_version.png"
 * ];
 * @endcode
 *
 * SVG is also supported but when enabled, it
 * disables 1.5x and 2x as svg will already
 * be optimised for screen resolution.
 *
 * @par Example:
 * @code
 * $wgLogoHD = [
 *      "svg" => "path/to/svg_version.svg",
 * ];
 * @endcode
 *
 * @since 1.25
 */
$wgLogoHD = false;

/**
 * The URL path of the shortcut icon.
 * @since 1.6
 */
$wgFavicon = '/favicon.ico';

/**
 * The URL path of the icon for iPhone and iPod Touch web app bookmarks.
 * Defaults to no icon.
 * @since 1.12
 */
$wgAppleTouchIcon = false;

/**
 * Value for the referrer policy meta tag.
 * One or more of the values defined in the Referrer Policy specification:
 * https://w3c.github.io/webappsec-referrer-policy/
 * ('no-referrer', 'no-referrer-when-downgrade', 'same-origin',
 * 'origin', 'strict-origin', 'origin-when-cross-origin',
 * 'strict-origin-when-cross-origin', or 'unsafe-url')
 * Setting it to false prevents the meta tag from being output
 * (which results in falling back to the Referrer-Policy header,
 * or 'no-referrer-when-downgrade' if that's not set either.)
 * Setting it to an array (supported since 1.31) will create a meta tag for
 * each value, in the reverse of the order (meaning that the first array element
 * will be the default and the others used as fallbacks for browsers which do not
 * understand it).
 *
 * @var array|string|bool
 * @since 1.25
 */
$wgReferrerPolicy = false;

/**
 * The local filesystem path to a temporary directory. This is not required to
 * be web accessible.
 *
 * When this setting is set to false, its value will be set through a call
 * to wfTempDir(). See that methods implementation for the actual detection
 * logic.
 *
 * Developers should use the global function wfTempDir() instead of this
 * variable.
 *
 * @see wfTempDir()
 * @note Default changed to false in MediaWiki 1.20.
 */
$wgTmpDirectory = false;

/**
 * If set, this URL is added to the start of $wgUploadPath to form a complete
 * upload URL.
 * @since 1.4
 */
$wgUploadBaseUrl = '';

/**
 * To enable remote on-demand scaling, set this to the thumbnail base URL.
 * Full thumbnail URL will be like $wgUploadStashScalerBaseUrl/e/e6/Foo.jpg/123px-Foo.jpg
 * where 'e6' are the first two characters of the MD5 hash of the file name.
 * If $wgUploadStashScalerBaseUrl is set to false, thumbs are rendered locally as needed.
 * @since 1.17
 */
$wgUploadStashScalerBaseUrl = false;

/**
 * To set 'pretty' URL paths for actions other than
 * plain page views, add to this array.
 *
 * @par Example:
 * Set pretty URL for the edit action:
 * @code
 *   'edit' => "$wgScriptPath/edit/$1"
 * @endcode
 *
 * There must be an appropriate script or rewrite rule in place to handle these
 * URLs.
 * @since 1.5
 */
$wgActionPaths = [];

/**@}*/

/************************************************************************//**
 * @name   Files and file uploads
 * @{
 */

/**
 * Allow users to upload files.
 *
 * Use $wgLocalFileRepo to control how and where uploads are stored.
 * Disabled by default as for security reasons.
 * See <https://www.mediawiki.org/wiki/Manual:Configuring_file_uploads>.
 *
 * @since 1.5
 */
$wgEnableUploads = false;

/**
 * The maximum age of temporary (incomplete) uploaded files
 */
$wgUploadStashMaxAge = 6 * 3600; // 6 hours

/**
 * Allows to move images and other media files
 */
$wgAllowImageMoving = true;

/**
 * Enable deferred upload tasks that use the job queue.
 * Only enable this if job runners are set up for both the
 * 'AssembleUploadChunks' and 'PublishStashedFile' job types.
 *
 * @note If you use suhosin, this setting is incompatible with
 *   suhosin.session.encrypt.
 */
$wgEnableAsyncUploads = false;

/**
 * Additional characters that are not allowed in filenames. They are replaced with '-' when
 * uploading. Like $wgLegalTitleChars, this is a regexp character class.
 *
 * Slashes and backslashes are disallowed regardless of this setting, but included here for
 * completeness.
 */
$wgIllegalFileChars = ":\\/\\\\";

/**
 * What directory to place deleted uploads in.
 * Defaults to "{$wgUploadDirectory}/deleted".
 */
$wgDeletedDirectory = false;

/**
 * Set this to true if you use img_auth and want the user to see details on why access failed.
 */
$wgImgAuthDetails = false;

/**
 * Map of relative URL directories to match to internal mwstore:// base storage paths.
 * For img_auth.php requests, everything after "img_auth.php/" is checked to see
 * if starts with any of the prefixes defined here. The prefixes should not overlap.
 * The prefix that matches has a corresponding storage path, which the rest of the URL
 * is assumed to be relative to. The file at that path (or a 404) is send to the client.
 *
 * Example:
 * $wgImgAuthUrlPathMap['/timeline/'] = 'mwstore://local-fs/timeline-render/';
 * The above maps ".../img_auth.php/timeline/X" to "mwstore://local-fs/timeline-render/".
 * The name "local-fs" should correspond by name to an entry in $wgFileBackends.
 *
 * @see $wgFileBackends
 */
$wgImgAuthUrlPathMap = [];

/**
 * File repository structures
 *
 * $wgLocalFileRepo is a single repository structure, and $wgForeignFileRepos is
 * an array of such structures. Each repository structure is an associative
 * array of properties configuring the repository.
 *
 * Properties required for all repos:
 *   - class            The class name for the repository. May come from the core or an extension.
 *                      The core repository classes are FileRepo, LocalRepo, ForeignDBRepo.
 *
 *   - name             A unique name for the repository (but $wgLocalFileRepo should be 'local').
 *                      The name should consist of alpha-numeric characters.
 *   - backend          A file backend name (see $wgFileBackends).
 *
 * For most core repos:
 *   - zones            Associative array of zone names that each map to an array with:
 *                          container  : backend container name the zone is in
 *                          directory  : root path within container for the zone
 *                          url        : base URL to the root of the zone
 *                          urlsByExt  : map of file extension types to base URLs
 *                                       (useful for using a different cache for videos)
 *                      Zones default to using "<repo name>-<zone name>" as the container name
 *                      and default to using the container root as the zone's root directory.
 *                      Nesting of zone locations within other zones should be avoided.
 *   - url              Public zone URL. The 'zones' settings take precedence.
 *   - hashLevels       The number of directory levels for hash-based division of files
 *   - thumbScriptUrl   The URL for thumb.php (optional, not recommended)
 *   - transformVia404  Whether to skip media file transformation on parse and rely on a 404
 *                      handler instead.
 *   - initialCapital   Equivalent to $wgCapitalLinks (or $wgCapitalLinkOverrides[NS_FILE],
 *                      determines whether filenames implicitly start with a capital letter.
 *                      The current implementation may give incorrect description page links
 *                      when the local $wgCapitalLinks and initialCapital are mismatched.
 *   - pathDisclosureProtection
 *                      May be 'paranoid' to remove all parameters from error messages, 'none' to
 *                      leave the paths in unchanged, or 'simple' to replace paths with
 *                      placeholders. Default for LocalRepo is 'simple'.
 *   - fileMode         This allows wikis to set the file mode when uploading/moving files. Default
 *                      is 0644.
 *   - directory        The local filesystem directory where public files are stored. Not used for
 *                      some remote repos.
 *   - thumbDir         The base thumbnail directory. Defaults to "<directory>/thumb".
 *   - thumbUrl         The base thumbnail URL. Defaults to "<url>/thumb".
 *   - isPrivate        Set this if measures should always be taken to keep the files private.
 *                      One should not trust this to assure that the files are not web readable;
 *                      the server configuration should be done manually depending on the backend.
 *
 * These settings describe a foreign MediaWiki installation. They are optional, and will be ignored
 * for local repositories:
 *   - descBaseUrl       URL of image description pages, e.g. https://en.wikipedia.org/wiki/File:
 *   - scriptDirUrl      URL of the MediaWiki installation, equivalent to $wgScriptPath, e.g.
 *                       https://en.wikipedia.org/w
 *   - articleUrl        Equivalent to $wgArticlePath, e.g. https://en.wikipedia.org/wiki/$1
 *   - fetchDescription  Fetch the text of the remote file description page and display them
 *                       on the local wiki.
 *   - abbrvThreshold    File names over this size will use the short form of thumbnail names.
 *                       Short thumbnail names only have the width, parameters, and the extension.
 *
 * ForeignDBRepo:
 *   - dbType, dbServer, dbUser, dbPassword, dbName, dbFlags
 *                       equivalent to the corresponding member of $wgDBservers
 *   - tablePrefix       Table prefix, the foreign wiki's $wgDBprefix
 *   - hasSharedCache    Set to true if the foreign wiki's $wgMainCacheType is identical to,
 *                       and accessible from, this wiki.
 *
 * ForeignAPIRepo:
 *   - apibase              Use for the foreign API's URL
 *   - apiThumbCacheExpiry  How long to locally cache thumbs for
 *
 * If you leave $wgLocalFileRepo set to false, Setup will fill in appropriate values.
 * Otherwise, set $wgLocalFileRepo to a repository structure as described above.
 * If you set $wgUseInstantCommons to true, it will add an entry for Commons.
 * If you set $wgForeignFileRepos to an array of repository structures, those will
 * be searched after the local file repo.
 * Otherwise, you will only have access to local media files.
 *
 * @see Setup.php for an example usage and default initialization.
 */
$wgLocalFileRepo = false;

/**
 * Enable the use of files from one or more other wikis.
 *
 * If you operate multiple wikis, you can declare a shared upload path here.
 * Uploads to the local wiki will NOT be stored here - See $wgLocalFileRepo
 * and $wgUploadDirectory for that.
 *
 * The wiki will only consider the foreign repository if no file of the given name
 * is found in the local repository (e.g. via `[[File:..]]` syntax).
 *
 * @since 1.11
 * @see $wgLocalFileRepo
 */
$wgForeignFileRepos = [];

/**
 * Use Wikimedia Commons as a foreign file repository.
 *
 * This is a shortcut for adding an entry to to $wgForeignFileRepos
 * for https://commons.wikimedia.org, using ForeignAPIRepo with the
 * default settings.
 *
 * @since 1.16
 */
$wgUseInstantCommons = false;

/**
 * Shortcut for adding an entry to $wgForeignFileRepos.
 *
 * Uses the following variables:
 *
 * - directory: $wgSharedUploadDirectory.
 * - url: $wgSharedUploadPath.
 * - hashLevels: Based on $wgHashedSharedUploadDirectory.
 * - thumbScriptUrl: $wgSharedThumbnailScriptPath.
 * - transformVia404: Based on $wgGenerateThumbnailOnParse.
 * - descBaseUrl: $wgRepositoryBaseUrl.
 * - fetchDescription: $wgFetchCommonsDescriptions.
 *
 * If $wgSharedUploadDBname is set, it uses the ForeignDBRepo
 * class, with also the following variables:
 *
 * - dbName: $wgSharedUploadDBname.
 * - dbType: $wgDBtype.
 * - dbServer: $wgDBserver.
 * - dbUser: $wgDBuser.
 * - dbPassword: $wgDBpassword.
 * - dbFlags: Based on $wgDebugDumpSql.
 * - tablePrefix: $wgSharedUploadDBprefix,
 * - hasSharedCache: $wgCacheSharedUploads.
 *
 * @var bool
 * @since 1.3
 */
$wgUseSharedUploads = false;

/**
 * Shortcut for the 'directory' setting of $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var string
 * @since 1.3
 */
$wgSharedUploadDirectory = null;

/**
 * Shortcut for the 'url' setting of $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var string
 * @since 1.3
 */
$wgSharedUploadPath = null;

/**
 * Shortcut for the 'hashLevels' setting of $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var bool
 * @since 1.3
 */
$wgHashedSharedUploadDirectory = true;

/**
 * Shortcut for the 'descBaseUrl' setting of $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @since 1.5
 */
$wgRepositoryBaseUrl = 'https://commons.wikimedia.org/wiki/File:';

/**
 * Shortcut for the 'fetchDescription' setting of $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var bool
 * @since 1.5
 */
$wgFetchCommonsDescriptions = false;

/**
 * Shortcut for the ForeignDBRepo 'dbName' setting in $wgForeignFileRepos.
 * Set this to false if the uploads do not come from a wiki.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var bool|string
 * @since 1.4
 */
$wgSharedUploadDBname = false;

/**
 * Shortcut for the ForeignDBRepo 'tablePrefix' setting in $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var string
 * @since 1.5
 */
$wgSharedUploadDBprefix = '';

/**
 * Shortcut for the ForeignDBRepo 'hasSharedCache' setting in $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var bool
 * @since 1.5
 */
$wgCacheSharedUploads = true;

/**
 * Array of foreign file repo names (set in $wgForeignFileRepos above) that
 * are allowable upload targets. These wikis must have some method of
 * authentication (i.e. CentralAuth), and be CORS-enabled for this wiki.
 * The string 'local' signifies the default local file repository.
 *
 * Example:
 * $wgForeignUploadTargets = [ 'shared' ];
 */
$wgForeignUploadTargets = [ 'local' ];

/**
 * Configuration for file uploads using the embeddable upload dialog
 * (https://www.mediawiki.org/wiki/Upload_dialog).
 *
 * This applies also to foreign uploads to this wiki (the configuration is loaded by remote wikis
 * using the action=query&meta=siteinfo API).
 *
 * See below for documentation of each property. None of the properties may be omitted.
 */
$wgUploadDialog = [
        // Fields to make available in the dialog. `true` means that this field is visible, `false` means
        // that it is hidden. The "Name" field can't be hidden. Note that you also have to add the
        // matching replacement to the 'filepage' format key below to make use of these.
        'fields' => [
                'description' => true,
                'date' => false,
                'categories' => false,
        ],
        // Suffix of localisation messages used to describe the license under which the uploaded file will
        // be released. The same value may be set for both 'local' and 'foreign' uploads.
        'licensemessages' => [
                // The 'local' messages are used for local uploads on this wiki:
                // * upload-form-label-own-work-message-generic-local
                // * upload-form-label-not-own-work-message-generic-local
                // * upload-form-label-not-own-work-local-generic-local
                'local' => 'generic-local',
                // The 'foreign' messages are used for cross-wiki uploads from other wikis to this wiki:
                // * upload-form-label-own-work-message-generic-foreign
                // * upload-form-label-not-own-work-message-generic-foreign
                // * upload-form-label-not-own-work-local-generic-foreign
                'foreign' => 'generic-foreign',
        ],
        // Upload comments to use for 'local' and 'foreign' uploads. This can also be set to a single
        // string value, in which case it is used for both kinds of uploads. Available replacements:
        // * $HOST - domain name from which a cross-wiki upload originates
        // * $PAGENAME - wiki page name from which an upload originates
        'comment' => [
                'local' => '',
                'foreign' => '',
        ],
        // Format of the file page wikitext to be generated from the fields input by the user.
        'format' => [
                // Wrapper for the whole page. Available replacements:
                // * $DESCRIPTION - file description, as input by the user (only if the 'description' field is
                //   enabled), wrapped as defined below in the 'description' key
                // * $DATE - file creation date, as input by the user (only if the 'date' field is enabled)
                // * $SOURCE - as defined below in the 'ownwork' key, may be extended in the future
                // * $AUTHOR - linked user name, may be extended in the future
                // * $LICENSE - as defined below in the 'license' key, may be extended in the future
                // * $CATEGORIES - file categories wikitext, as input by the user (only if the 'categories'
                //   field is enabled), or if no input, as defined below in the 'uncategorized' key
                'filepage' => '$DESCRIPTION',
                // Wrapped for file description. Available replacements:
                // * $LANGUAGE - source wiki's content language
                // * $TEXT - input by the user
                'description' => '$TEXT',
                'ownwork' => '',
                'license' => '',
                'uncategorized' => '',
        ],
];

/**
 * File backend structure configuration.
 *
 * This is an array of file backend configuration arrays.
 * Each backend configuration has the following parameters:
 *  - 'name'         : A unique name for the backend
 *  - 'class'        : The file backend class to use
 *  - 'wikiId'       : A unique string that identifies the wiki (container prefix)
 *  - 'lockManager'  : The name of a lock manager (see $wgLockManagers)
 *
 * See FileBackend::__construct() for more details.
 * Additional parameters are specific to the file backend class used.
 * These settings should be global to all wikis when possible.
 *
 * FileBackendMultiWrite::__construct() is augmented with a 'template' option that
 * can be used in any of the values of the 'backends' array. Its value is the name of
 * another backend in $wgFileBackends. When set, it pre-fills the array with all of the
 * configuration of the named backend. Explicitly set values in the array take precedence.
 *
 * There are two particularly important aspects about each backend:
 *   - a) Whether it is fully qualified or wiki-relative.
 *        By default, the paths of files are relative to the current wiki,
 *        which works via prefixing them with the current wiki ID when accessed.
 *        Setting 'domainId' forces the backend to be fully qualified by prefixing
 *        all paths with the specified value instead. This can be useful if
 *        multiple wikis need to share the same data. Note that 'name' is *not*
 *        part of any prefix and thus should not be relied upon for namespacing.
 *   - b) Whether it is only defined for some wikis or is defined on all
 *        wikis in the wiki farm. Defining a backend globally is useful
 *        if multiple wikis need to share the same data.
 * One should be aware of these aspects when configuring a backend for use with
 * any basic feature or plugin. For example, suppose an extension stores data for
 * different wikis in different directories and sometimes needs to access data from
 * a foreign wiki's directory in order to render a page on given wiki. The extension
 * would need a fully qualified backend that is defined on all wikis in the wiki farm.
 */
$wgFileBackends = [];

/**
 * Array of configuration arrays for each lock manager.
 * Each backend configuration has the following parameters:
 *  - 'name'        : A unique name for the lock manager
 *  - 'class'       : The lock manger class to use
 *
 * See LockManager::__construct() for more details.
 * Additional parameters are specific to the lock manager class used.
 * These settings should be global to all wikis.
 *
 * When using DBLockManager, the 'dbsByBucket' map can reference 'localDBMaster' as
 * a peer database in each bucket. This will result in an extra connection to the domain
 * that the LockManager services, which must also be a valid wiki ID.
 */
$wgLockManagers = [];

/**
 * Show Exif data, on by default if available.
 * Requires PHP's Exif extension: https://www.php.net/manual/en/ref.exif.php
 *
 * @note FOR WINDOWS USERS:
 * To enable Exif functions, add the following line to the "Windows
 * extensions" section of php.ini:
 * @code{.ini}
 * extension=extensions/php_exif.dll
 * @endcode
 */
$wgShowEXIF = function_exists( 'exif_read_data' );

/**
 * If to automatically update the img_metadata field
 * if the metadata field is outdated but compatible with the current version.
 * Defaults to false.
 */
$wgUpdateCompatibleMetadata = false;

/**
 * Allow for upload to be copied from an URL.
 * The timeout for copy uploads is set by $wgCopyUploadTimeout.
 * You have to assign the user right 'upload_by_url' to a user group, to use this.
 */
$wgAllowCopyUploads = false;

/**
 * A list of domains copy uploads can come from
 *
 * @since 1.20
 */
$wgCopyUploadsDomains = [];

/**
 * Enable copy uploads from Special:Upload. $wgAllowCopyUploads must also be
 * true. If $wgAllowCopyUploads is true, but this is false, you will only be
 * able to perform copy uploads from the API or extensions (e.g. UploadWizard).
 */
$wgCopyUploadsFromSpecialUpload = false;

/**
 * Proxy to use for copy upload requests.
 * @since 1.20
 */
$wgCopyUploadProxy = false;

/**
 * Different timeout for upload by url
 * This could be useful since when fetching large files, you may want a
 * timeout longer than the default $wgHTTPTimeout. False means fallback
 * to default.
 *
 * @var int|bool
 *
 * @since 1.22
 */
$wgCopyUploadTimeout = false;

/**
 * Max size for uploads, in bytes. If not set to an array, applies to all
 * uploads. If set to an array, per upload type maximums can be set, using the
 * file and url keys. If the * key is set this value will be used as maximum
 * for non-specified types.
 *
 * @par Example:
 * @code
 * $wgMaxUploadSize = [
 *     '*' => 250 * 1024,
 *     'url' => 500 * 1024,
 * ];
 * @endcode
 * Sets the maximum for all uploads to 250 kB except for upload-by-url, which
 * will have a maximum of 500 kB.
 */
$wgMaxUploadSize = 1024 * 1024 * 100; # 100MB

/**
 * Minimum upload chunk size, in bytes. When using chunked upload, non-final
 * chunks smaller than this will be rejected. May be reduced based on the
 * 'upload_max_filesize' or 'post_max_size' PHP settings.
 * @since 1.26
 */
$wgMinUploadChunkSize = 1024; # 1KB

/**
 * Point the upload navigation link to an external URL
 * Useful if you want to use a shared repository by default
 * without disabling local uploads (use $wgEnableUploads = false for that).
 *
 * @par Example:
 * @code
 * $wgUploadNavigationUrl = 'https://commons.wikimedia.org/wiki/Special:Upload';
 * @endcode
 */
$wgUploadNavigationUrl = false;

/**
 * Point the upload link for missing files to an external URL, as with
 * $wgUploadNavigationUrl. The URL will get "(?|&)wpDestFile=<filename>"
 * appended to it as appropriate.
 */
$wgUploadMissingFileUrl = false;

/**
 * Give a path here to use thumb.php for thumbnail generation on client
 * request, instead of generating them on render and outputting a static URL.
 * This is necessary if some of your apache servers don't have read/write
 * access to the thumbnail path.
 *
 * @par Example:
 * @code
 *   $wgThumbnailScriptPath = "{$wgScriptPath}/thumb.php";
 * @endcode
 */
$wgThumbnailScriptPath = false;

/**
 * Shortcut for the 'thumbScriptUrl' setting of $wgForeignFileRepos.
 * Only used if $wgUseSharedUploads is enabled.
 *
 * @var string
 * @since 1.3
 */
$wgSharedThumbnailScriptPath = false;

/**
 * Set this to false if you do not want MediaWiki to divide your images
 * directory into many subdirectories, for improved performance.
 *
 * It's almost always good to leave this enabled. In previous versions of
 * MediaWiki, some users set this to false to allow images to be added to the
 * wiki by simply copying them into $wgUploadDirectory and then running
 * maintenance/rebuildImages.php to register them in the database. This is no
 * longer recommended, use maintenance/importImages.php instead.
 *
 * @note That this variable may be ignored if $wgLocalFileRepo is set.
 * @todo Deprecate the setting and ultimately remove it from Core.
 */
$wgHashedUploadDirectory = true;

/**
 * This is the list of preferred extensions for uploading files. Uploading files
 * with extensions not in this list will trigger a warning.
 *
 * @warning If you add any OpenOffice or Microsoft Office file formats here,
 * such as odt or doc, and untrusted users are allowed to upload files, then
 * your wiki will be vulnerable to cross-site request forgery (CSRF).
 */
$wgFileExtensions = [ 'png', 'gif', 'jpg', 'jpeg', 'webp' ];

/**
 * Files with these extensions will never be allowed as uploads.
 * An array of file extensions to blacklist. You should append to this array
 * if you want to blacklist additional files.
 */
$wgFileBlacklist = [
        # HTML may contain cookie-stealing JavaScript and web bugs
        'html', 'htm', 'js', 'jsb', 'mhtml', 'mht', 'xhtml', 'xht',
        # PHP scripts may execute arbitrary code on the server
        'php', 'phtml', 'php3', 'php4', 'php5', 'phps', 'phar',
        # Other types that may be interpreted by some servers
        'shtml', 'jhtml', 'pl', 'py', 'cgi',
        # May contain harmful executables for Windows victims
        'exe', 'scr', 'dll', 'msi', 'vbs', 'bat', 'com', 'pif', 'cmd', 'vxd', 'cpl' ];

/**
 * Files with these MIME types will never be allowed as uploads
 * if $wgVerifyMimeType is enabled.
 */
$wgMimeTypeBlacklist = [
        # HTML may contain cookie-stealing JavaScript and web bugs
        'text/html', 'text/javascript', 'text/x-javascript', 'application/x-shellscript',
        # PHP scripts may execute arbitrary code on the server
        'application/x-php', 'text/x-php',
        # Other types that may be interpreted by some servers
        'text/x-python', 'text/x-perl', 'text/x-bash', 'text/x-sh', 'text/x-csh',
        # Client-side hazards on Internet Explorer
        'text/scriptlet', 'application/x-msdownload',
        # Windows metafile, client-side vulnerability on some systems
        'application/x-msmetafile',
];

/**
 * Allow Java archive uploads.
 * This is not recommended for public wikis since a maliciously-constructed
 * applet running on the same domain as the wiki can steal the user's cookies.
 */
$wgAllowJavaUploads = false;

/**
 * This is a flag to determine whether or not to check file extensions on upload.
 *
 * @warning Setting this to false is insecure for public wikis.
 */
$wgCheckFileExtensions = true;

/**
 * If this is turned off, users may override the warning for files not covered
 * by $wgFileExtensions.
 *
 * @warning Setting this to false is insecure for public wikis.
 */
$wgStrictFileExtensions = true;

/**
 * Setting this to true will disable the upload system's checks for HTML/JavaScript.
 *
 * @warning THIS IS VERY DANGEROUS on a publicly editable site, so USE
 * $wgGroupPermissions TO RESTRICT UPLOADING to only those that you trust
 */
$wgDisableUploadScriptChecks = false;

/**
 * Warn if uploaded files are larger than this (in bytes), or false to disable
 */
$wgUploadSizeWarning = false;

/**
 * list of trusted media-types and MIME types.
 * Use the MEDIATYPE_xxx constants to represent media types.
 * This list is used by File::isSafeFile
 *
 * Types not listed here will have a warning about unsafe content
 * displayed on the images description page. It would also be possible
 * to use this for further restrictions, like disabling direct
 * [[media:...]] links for non-trusted formats.
 */
$wgTrustedMediaFormats = [
        MEDIATYPE_BITMAP, // all bitmap formats
        MEDIATYPE_AUDIO, // all audio formats
        MEDIATYPE_VIDEO, // all plain video formats
        "image/svg+xml", // svg (only needed if inline rendering of svg is not supported)
        "application/pdf", // PDF files
        # "application/x-shockwave-flash", //flash/shockwave movie
];

/**
 * Plugins for media file type handling.
 * Each entry in the array maps a MIME type to a class name
 *
 * Core media handlers are listed in MediaHandlerFactory,
 * and extensions should use extension.json.
 */
$wgMediaHandlers = [];

/**
 * Media handler overrides for parser tests (they don't need to generate actual
 * thumbnails, so a mock will do)
 */
$wgParserTestMediaHandlers = [
        'image/jpeg' => 'MockBitmapHandler',
        'image/png' => 'MockBitmapHandler',
        'image/gif' => 'MockBitmapHandler',
        'image/tiff' => 'MockBitmapHandler',
        'image/webp' => 'MockBitmapHandler',
        'image/x-ms-bmp' => 'MockBitmapHandler',
        'image/x-bmp' => 'MockBitmapHandler',
        'image/x-xcf' => 'MockBitmapHandler',
        'image/svg+xml' => 'MockSvgHandler',
        'image/vnd.djvu' => 'MockDjVuHandler',
];

/**
 * Plugins for page content model handling.
 * Each entry in the array maps a model id to a class name or callback
 * that creates an instance of the appropriate ContentHandler subclass.
 *
 * @since 1.21
 */
$wgContentHandlers = [
        // the usual case
        CONTENT_MODEL_WIKITEXT => WikitextContentHandler::class,
        // dumb version, no syntax highlighting
        CONTENT_MODEL_JAVASCRIPT => JavaScriptContentHandler::class,
        // simple implementation, for use by extensions, etc.
        CONTENT_MODEL_JSON => JsonContentHandler::class,
        // dumb version, no syntax highlighting
        CONTENT_MODEL_CSS => CssContentHandler::class,
        // plain text, for use by extensions, etc.
        CONTENT_MODEL_TEXT => TextContentHandler::class,
];

/**
 * Whether to enable server-side image thumbnailing. If false, images will
 * always be sent to the client in full resolution, with appropriate width= and
 * height= attributes on the <img> tag for the client to do its own scaling.
 */
$wgUseImageResize = true;

/**
 * Resizing can be done using PHP's internal image libraries or using
 * ImageMagick or another third-party converter, e.g. GraphicMagick.
 * These support more file formats than PHP, which only supports PNG,
 * GIF, JPG, XBM and WBMP.
 *
 * Use Image Magick instead of PHP builtin functions.
 */
$wgUseImageMagick = false;

/**
 * The convert command shipped with ImageMagick
 */
$wgImageMagickConvertCommand = '/usr/bin/convert';

/**
 * Array of max pixel areas for interlacing per MIME type
 * @since 1.27
 */
$wgMaxInterlacingAreas = [];

/**
 * Sharpening parameter to ImageMagick
 */
$wgSharpenParameter = '0x0.4';

/**
 * Reduction in linear dimensions below which sharpening will be enabled
 */
$wgSharpenReductionThreshold = 0.85;

/**
 * Temporary directory used for ImageMagick. The directory must exist. Leave
 * this set to false to let ImageMagick decide for itself.
 */
$wgImageMagickTempDir = false;

/**
 * Use another resizing converter, e.g. GraphicMagick
 * %s will be replaced with the source path, %d with the destination
 * %w and %h will be replaced with the width and height.
 *
 * @par Example for GraphicMagick:
 * @code
 * $wgCustomConvertCommand = "gm convert %s -resize %wx%h %d"
 * @endcode
 *
 * Leave as false to skip this.
 */
$wgCustomConvertCommand = false;

/**
 * used for lossless jpeg rotation
 *
 * @since 1.21
 */
$wgJpegTran = '/usr/bin/jpegtran';

/**
 * At default setting of 'yuv420', JPEG thumbnails will use 4:2:0 chroma
 * subsampling to reduce file size, at the cost of possible color fringing
 * at sharp edges.
 *
 * See https://en.wikipedia.org/wiki/Chroma_subsampling
 *
 * Supported values:
 *   false - use scaling system's default (same as pre-1.27 behavior)
 *   'yuv444' - luma and chroma at same resolution
 *   'yuv422' - chroma at 1/2 resolution horizontally, full vertically
 *   'yuv420' - chroma at 1/2 resolution in both dimensions
 *
 * This setting is currently supported only for the ImageMagick backend;
 * others may default to 4:2:0 or 4:4:4 or maintaining the source file's
 * sampling in the thumbnail.
 *
 * @since 1.27
 */
$wgJpegPixelFormat = 'yuv420';

/**
 * When scaling a JPEG thumbnail, this is the quality we request
 * from the backend. It should be an int between 1 and 100,
 * with 100 indicating 100% quality.
 *
 * @since 1.32
 */
$wgJpegQuality = 80;

/**
 * Some tests and extensions use exiv2 to manipulate the Exif metadata in some
 * image formats.
 */
$wgExiv2Command = '/usr/bin/exiv2';

/**
 * Path to exiftool binary. Used for lossless ICC profile swapping.
 *
 * @since 1.26
 */
$wgExiftool = '/usr/bin/exiftool';

/**
 * Scalable Vector Graphics (SVG) may be uploaded as images.
 * Since SVG support is not yet standard in browsers, it is
 * necessary to rasterize SVGs to PNG as a fallback format.
 *
 * An external program is required to perform this conversion.
 * If set to an array, the first item is a PHP callable and any further items
 * are passed as parameters after $srcPath, $dstPath, $width, $height
 */
$wgSVGConverters = [
        'ImageMagick' =>
                '$path/convert -background "#ffffff00" -thumbnail $widthx$height\! $input PNG:$output',
        'sodipodi' => '$path/sodipodi -z -w $width -f $input -e $output',
        'inkscape' => '$path/inkscape -z -w $width -f $input -e $output',
        'batik' => 'java -Djava.awt.headless=true -jar $path/batik-rasterizer.jar -w $width -d '
                . '$output $input',
        'rsvg' => '$path/rsvg-convert -w $width -h $height -o $output $input',
        'imgserv' => '$path/imgserv-wrapper -i svg -o png -w$width $input $output',
        'ImagickExt' => [ 'SvgHandler::rasterizeImagickExt' ],
];

/**
 * Pick a converter defined in $wgSVGConverters
 */
$wgSVGConverter = 'ImageMagick';

/**
 * If not in the executable PATH, specify the SVG converter path.
 */
$wgSVGConverterPath = '';

/**
 * Don't scale a SVG larger than this
 */
$wgSVGMaxSize = 5120;

/**
 * Don't read SVG metadata beyond this point.
 * Default is 1024*256 bytes
 */
$wgSVGMetadataCutoff = 262144;

/**
 * Disallow <title> element in SVG files.
 *
 * MediaWiki will reject HTMLesque tags in uploaded files due to idiotic
 * browsers which can not perform basic stuff like MIME detection and which are
 * vulnerable to further idiots uploading crap files as images.
 *
 * When this directive is on, "<title>" will be allowed in files with an
 * "image/svg+xml" MIME type. You should leave this disabled if your web server
 * is misconfigured and doesn't send appropriate MIME types for SVG images.
 */
$wgAllowTitlesInSVG = false;

/**
 * Whether thumbnails should be generated in target language (usually, same as
 * page language), if available.
 * Currently, applies only to SVG images that use the systemLanguage attribute
 * to specify text language.
 *
 * @since 1.33
 */
$wgMediaInTargetLanguage = true;

/**
 * The maximum number of pixels a source image can have if it is to be scaled
 * down by a scaler that requires the full source image to be decompressed
 * and stored in decompressed form, before the thumbnail is generated.
 *
 * This provides a limit on memory usage for the decompression side of the
 * image scaler. The limit is used when scaling PNGs with any of the
 * built-in image scalers, such as ImageMagick or GD. It is ignored for
 * JPEGs with ImageMagick, and when using the VipsScaler extension.
 *
 * The default is 50 MB if decompressed to RGBA form, which corresponds to
 * 12.5 million pixels or 3500x3500.
 */
$wgMaxImageArea = 1.25e7;

/**
 * Force thumbnailing of animated GIFs above this size to a single
 * frame instead of an animated thumbnail.  As of MW 1.17 this limit
 * is checked against the total size of all frames in the animation.
 * It probably makes sense to keep this equal to $wgMaxImageArea.
 */
$wgMaxAnimatedGifArea = 1.25e7;

/**
 * Browsers don't support TIFF inline generally...
 * For inline display, we need to convert to PNG or JPEG.
 * Note scaling should work with ImageMagick, but may not with GD scaling.
 *
 * @par Example:
 * @code
 *  // PNG is lossless, but inefficient for photos
 *  $wgTiffThumbnailType = [ 'png', 'image/png' ];
 *  // JPEG is good for photos, but has no transparency support. Bad for diagrams.
 *  $wgTiffThumbnailType = [ 'jpg', 'image/jpeg' ];
 * @endcode
 */
$wgTiffThumbnailType = false;

/**
 * If rendered thumbnail files are older than this timestamp, they
 * will be rerendered on demand as if the file didn't already exist.
 * Update if there is some need to force thumbs and SVG rasterizations
 * to rerender, such as fixes to rendering bugs.
 */
$wgThumbnailEpoch = '20030516000000';

/**
 * Certain operations are avoided if there were too many recent failures,
 * for example, thumbnail generation. Bump this value to invalidate all
 * memory of failed operations and thus allow further attempts to resume.
 * This is useful when a cause for the failures has been found and fixed.
 */
$wgAttemptFailureEpoch = 1;

/**
 * If set, inline scaled images will still produce "<img>" tags ready for
 * output instead of showing an error message.
 *
 * This may be useful if errors are transitory, especially if the site
 * is configured to automatically render thumbnails on request.
 *
 * On the other hand, it may obscure error conditions from debugging.
 * Enable the debug log or the 'thumbnail' log group to make sure errors
 * are logged to a file for review.
 */
$wgIgnoreImageErrors = false;

/**
 * Allow thumbnail rendering on page view. If this is false, a valid
 * thumbnail URL is still output, but no file will be created at
 * the target location. This may save some time if you have a
 * thumb.php or 404 handler set up which is faster than the regular
 * webserver(s).
 */
$wgGenerateThumbnailOnParse = true;

/**
 * Show thumbnails for old images on the image description page
 */
$wgShowArchiveThumbnails = true;

/**
 * If set to true, images that contain certain the exif orientation tag will
 * be rotated accordingly. If set to null, try to auto-detect whether a scaler
 * is available that can rotate.
 */
$wgEnableAutoRotation = null;

/**
 * Internal name of virus scanner. This serves as a key to the
 * $wgAntivirusSetup array. Set this to NULL to disable virus scanning. If not
 * null, every file uploaded will be scanned for viruses.
 */
$wgAntivirus = null;

/**
 * Configuration for different virus scanners. This an associative array of
 * associative arrays. It contains one setup array per known scanner type.
 * The entry is selected by $wgAntivirus, i.e.
 * valid values for $wgAntivirus are the keys defined in this array.
 *
 * The configuration array for each scanner contains the following keys:
 * "command", "codemap", "messagepattern":
 *
 * "command" is the full command to call the virus scanner - %f will be
 * replaced with the name of the file to scan. If not present, the filename
 * will be appended to the command. Note that this must be overwritten if the
 * scanner is not in the system path; in that case, please set
 * $wgAntivirusSetup[$wgAntivirus]['command'] to the desired command with full
 * path.
 *
 * "codemap" is a mapping of exit code to return codes of the detectVirus
 * function in SpecialUpload.
 *   - An exit code mapped to AV_SCAN_FAILED causes the function to consider
 *     the scan to be failed. This will pass the file if $wgAntivirusRequired
 *     is not set.
 *   - An exit code mapped to AV_SCAN_ABORTED causes the function to consider
 *     the file to have an unsupported format, which is probably immune to
 *     viruses. This causes the file to pass.
 *   - An exit code mapped to AV_NO_VIRUS will cause the file to pass, meaning
 *     no virus was found.
 *   - All other codes (like AV_VIRUS_FOUND) will cause the function to report
 *     a virus.
 *   - You may use "*" as a key in the array to catch all exit codes not mapped otherwise.
 *
 * "messagepattern" is a perl regular expression to extract the meaningful part of the scanners
 * output. The relevant part should be matched as group one (\1).
 * If not defined or the pattern does not match, the full message is shown to the user.
 */
$wgAntivirusSetup = [

        # setup for clamav
        'clamav' => [
                'command' => 'clamscan --no-summary ',
                'codemap' => [
                        "0" => AV_NO_VIRUS, # no virus
                        "1" => AV_VIRUS_FOUND, # virus found
                        "52" => AV_SCAN_ABORTED, # unsupported file format (probably immune)
                        "*" => AV_SCAN_FAILED, # else scan failed
                ],
                'messagepattern' => '/.*?:(.*)/sim',
        ],
];

/**
 * Determines if a failed virus scan (AV_SCAN_FAILED) will cause the file to be rejected.
 */
$wgAntivirusRequired = true;

/**
 * Determines if the MIME type of uploaded files should be checked
 */
$wgVerifyMimeType = true;

/**
 * Sets the MIME type definition file to use by includes/libs/mime/MimeAnalyzer.php.
 * Set to null, to use built-in defaults only.
 * example: $wgMimeTypeFile = '/etc/mime.types';
 */
$wgMimeTypeFile = 'includes/mime.types';

/**
 * Sets the MIME type info file to use by includes/libs/mime/MimeAnalyzer.php.
 * Set to null, to use built-in defaults only.
 */
$wgMimeInfoFile = 'includes/mime.info';

/**
 * Sets an external MIME detector program. The command must print only
 * the MIME type to standard output.
 * The name of the file to process will be appended to the command given here.
 * If not set or NULL, PHP's mime_content_type function will be used.
 *
 * @par Example:
 * @code
 * #$wgMimeDetectorCommand = "file -bi"; # use external MIME detector (Linux)
 * @endcode
 */
$wgMimeDetectorCommand = null;

/**
 * Switch for trivial MIME detection. Used by thumb.php to disable all fancy
 * things, because only a few types of images are needed and file extensions
 * can be trusted.
 */
$wgTrivialMimeDetection = false;

/**
 * Additional XML types we can allow via MIME-detection.
 * array = [ 'rootElement' => 'associatedMimeType' ]
 */
$wgXMLMimeTypes = [
        'http://www.w3.org/2000/svg:svg' => 'image/svg+xml',
        'svg' => 'image/svg+xml',
        'http://www.lysator.liu.se/~alla/dia/:diagram' => 'application/x-dia-diagram',
        'http://www.w3.org/1999/xhtml:html' => 'text/html', // application/xhtml+xml?
        'html' => 'text/html', // application/xhtml+xml?
];

/**
 * Limit images on image description pages to a user-selectable limit. In order
 * to reduce disk usage, limits can only be selected from a list.
 * The user preference is saved as an array offset in the database, by default
 * the offset is set with $wgDefaultUserOptions['imagesize']. Make sure you
 * change it if you alter the array (see T10858).
 * This is the list of settings the user can choose from:
 */
$wgImageLimits = [
        [ 320, 240 ],
        [ 640, 480 ],
        [ 800, 600 ],
        [ 1024, 768 ],
        [ 1280, 1024 ]
];

/**
 * Adjust thumbnails on image pages according to a user setting. In order to
 * reduce disk usage, the values can only be selected from a list. This is the
 * list of settings the user can choose from:
 */
$wgThumbLimits = [
        120,
        150,
        180,
        200,
        250,
        300
];

/**
 * When defined, is an array of image widths used as buckets for thumbnail generation.
 * The goal is to save resources by generating thumbnails based on reference buckets instead of
 * always using the original. This will incur a speed gain but cause a quality loss.
 *
 * The buckets generation is chained, with each bucket generated based on the above bucket
 * when possible. File handlers have to opt into using that feature. For now only BitmapHandler
 * supports it.
 */
$wgThumbnailBuckets = null;

/**
 * When using thumbnail buckets as defined above, this sets the minimum distance to the bucket
 * above the requested size. The distance represents how many extra pixels of width the bucket
 * needs in order to be used as the reference for a given thumbnail. For example, with the
 * following buckets:
 *
 * $wgThumbnailBuckets = [ 128, 256, 512 ];
 *
 * and a distance of 50:
 *
 * $wgThumbnailMinimumBucketDistance = 50;
 *
 * If we want to render a thumbnail of width 220px, the 512px bucket will be used,
 * because 220 + 50 = 270 and the closest bucket bigger than 270px is 512.
 */
$wgThumbnailMinimumBucketDistance = 50;

/**
 * When defined, is an array of thumbnail widths to be rendered at upload time. The idea is to
 * prerender common thumbnail sizes, in order to avoid the necessity to render them on demand, which
 * has a performance impact for the first client to view a certain size.
 *
 * This obviously means that more disk space is needed per upload upfront.
 *
 * @since 1.25
 */

$wgUploadThumbnailRenderMap = [];

/**
 * The method through which the thumbnails will be prerendered for the entries in
 * $wgUploadThumbnailRenderMap
 *
 * The method can be either "http" or "jobqueue". The former uses an http request to hit the
 * thumbnail's URL.
 * This method only works if thumbnails are configured to be rendered by a 404 handler. The latter
 * option uses the job queue to render the thumbnail.
 *
 * @since 1.25
 */
$wgUploadThumbnailRenderMethod = 'jobqueue';

/**
 * When using the "http" wgUploadThumbnailRenderMethod, lets one specify a custom Host HTTP header.
 *
 * @since 1.25
 */
$wgUploadThumbnailRenderHttpCustomHost = false;

/**
 * When using the "http" wgUploadThumbnailRenderMethod, lets one specify a custom domain to send the
 * HTTP request to.
 *
 * @since 1.25
 */
$wgUploadThumbnailRenderHttpCustomDomain = false;

/**
 * When this variable is true and JPGs use the sRGB ICC profile, swaps it for the more lightweight
 * (and free) TinyRGB profile when generating thumbnails.
 *
 * @since 1.26
 */
$wgUseTinyRGBForJPGThumbnails = false;

/**
 * Parameters for the "<gallery>" tag.
 * Fields are:
 *   - imagesPerRow:   Default number of images per-row in the gallery. 0 -> Adapt to screensize
 *   - imageWidth:     Width of the cells containing images in galleries (in "px")
 *   - imageHeight:    Height of the cells containing images in galleries (in "px")
 *   - captionLength:  Length to truncate filename to in caption when using "showfilename".
 *                     A value of 'true' will truncate the filename to one line using CSS
 *                     and will be the behaviour after deprecation.
 *                     @deprecated since 1.28
 *   - showBytes:      Show the filesize in bytes in categories
 *   - showDimensions: Show the dimensions (width x height) in categories
 *   - mode:           Gallery mode
 */
$wgGalleryOptions = [];

/**
 * Adjust width of upright images when parameter 'upright' is used
 * This allows a nicer look for upright images without the need to fix the width
 * by hardcoded px in wiki sourcecode.
 */
$wgThumbUpright = 0.75;

/**
 * Default value for chmoding of new directories.
 */
$wgDirectoryMode = 0777;

/**
 * Generate and use thumbnails suitable for screens with 1.5 and 2.0 pixel densities.
 *
 * This means a 320x240 use of an image on the wiki will also generate 480x360 and 640x480
 * thumbnails, output via the srcset attribute.
 */
$wgResponsiveImages = true;

/**
 * @name DJVU settings
 * @{
 */

/**
 * Path of the djvudump executable
 * Enable this and $wgDjvuRenderer to enable djvu rendering
 * example: $wgDjvuDump = 'djvudump';
 */
$wgDjvuDump = null;

/**
 * Path of the ddjvu DJVU renderer
 * Enable this and $wgDjvuDump to enable djvu rendering
 * example: $wgDjvuRenderer = 'ddjvu';
 */
$wgDjvuRenderer = null;

/**
 * Path of the djvutxt DJVU text extraction utility
 * Enable this and $wgDjvuDump to enable text layer extraction from djvu files
 * example: $wgDjvuTxt = 'djvutxt';
 */
$wgDjvuTxt = null;

/**
 * Path of the djvutoxml executable
 * This works like djvudump except much, much slower as of version 3.5.
 *
 * For now we recommend you use djvudump instead. The djvuxml output is
 * probably more stable, so we'll switch back to it as soon as they fix
 * the efficiency problem.
 * https://sourceforge.net/tracker/index.php?func=detail&aid=1704049&group_id=32953&atid=406583
 *
 * @par Example:
 * @code
 * $wgDjvuToXML = 'djvutoxml';
 * @endcode
 */
$wgDjvuToXML = null;

/**
 * Shell command for the DJVU post processor
 * Default: pnmtojpeg, since ddjvu generates ppm output
 * Set this to false to output the ppm file directly.
 */
$wgDjvuPostProcessor = 'pnmtojpeg';

/**
 * File extension for the DJVU post processor output
 */
$wgDjvuOutputExtension = 'jpg';

/** @} */ # end of DJvu }

/** @} */ # end of file uploads }

/************************************************************************//**
 * @name   Email settings
 * @{
 */

/**
 * Site admin email address.
 *
 * Defaults to "wikiadmin@$wgServerName" (in Setup.php).
 */
$wgEmergencyContact = false;

/**
 * Sender email address for e-mail notifications.
 *
 * The address we use as sender when a user requests a password reminder,
 * as well as other e-mail notifications.
 *
 * Defaults to "apache@$wgServerName" (in Setup.php).
 */
$wgPasswordSender = false;

/**
 * Reply-To address for e-mail notifications.
 *
 * Defaults to $wgPasswordSender (in Setup.php).
 */
$wgNoReplyAddress = false;

/**
 * Set to true to enable the e-mail basic features:
 * Password reminders, etc. If sending e-mail on your
 * server doesn't work, you might want to disable this.
 */
$wgEnableEmail = true;

/**
 * Set to true to enable user-to-user e-mail.
 * This can potentially be abused, as it's hard to track.
 */
$wgEnableUserEmail = true;

/**
 * Set to true to enable user-to-user e-mail blacklist.
 *
 * @since 1.30
 */
$wgEnableUserEmailBlacklist = false;

/**
 * If true put the sending user's email in a Reply-To header
 * instead of From (false). ($wgPasswordSender will be used as From.)
 *
 * Some mailers (eg SMTP) set the SMTP envelope sender to the From value,
 * which can cause problems with SPF validation and leak recipient addresses
 * when bounces are sent to the sender. In addition, DMARC restrictions
 * can cause emails to fail to be received when false.
 */
$wgUserEmailUseReplyTo = true;

/**
 * Minimum time, in hours, which must elapse between password reminder
 * emails for a given account. This is to prevent abuse by mail flooding.
 */
$wgPasswordReminderResendTime = 24;

/**
 * The time, in seconds, when an emailed temporary password expires.
 */
$wgNewPasswordExpiry = 3600 * 24 * 7;

/**
 * The time, in seconds, when an email confirmation email expires
 */
$wgUserEmailConfirmationTokenExpiry = 7 * 24 * 60 * 60;

/**
 * The number of days that a user's password is good for. After this number of days, the
 * user will be asked to reset their password. Set to false to disable password expiration.
 */
$wgPasswordExpirationDays = false;

/**
 * If a user's password is expired, the number of seconds when they can still login,
 * and cancel their password change, but are sent to the password change form on each login.
 */
$wgPasswordExpireGrace = 3600 * 24 * 7; // 7 days

/**
 * SMTP Mode.
 *
 * For using a direct (authenticated) SMTP server connection.
 * Default to false or fill an array :
 *
 * @code
 * $wgSMTP = [
 *     'host'     => 'SMTP domain',
 *     'IDHost'   => 'domain for MessageID',
 *     'port'     => '25',
 *     'auth'     => [true|false],
 *     'username' => [SMTP username],
 *     'password' => [SMTP password],
 * ];
 * @endcode
 */
$wgSMTP = false;

/**
 * Additional email parameters, will be passed as the last argument to mail() call.
 */
$wgAdditionalMailParams = null;

/**
 * For parts of the system that have been updated to provide HTML email content, send
 * both text and HTML parts as the body of the email
 */
$wgAllowHTMLEmail = false;

/**
 * Allow sending of e-mail notifications with the editor's address as sender.
 *
 * This setting depends on $wgEnotifRevealEditorAddress also being enabled.
 * If both are enabled, notifications for actions from users that have opted-in,
 * will be sent to other users with their address as "From" instead of "Reply-To".
 *
 * If disabled, or not opted-in, notifications come from $wgPasswordSender.
 *
 * @var bool
 */
$wgEnotifFromEditor = false;

// TODO move UPO to preferences probably ?
# If set to true, users get a corresponding option in their preferences and can choose to
# enable or disable at their discretion
# If set to false, the corresponding input form on the user preference page is suppressed
# It call this to be a "user-preferences-option (UPO)"

/**
 * Require email authentication before sending mail to an email address.
 * This is highly recommended. It prevents MediaWiki from being used as an open
 * spam relay.
 */
$wgEmailAuthentication = true;

/**
 * Allow users to enable email notification ("enotif") on watchlist changes.
 */
$wgEnotifWatchlist = false;

/**
 * Allow users to enable email notification ("enotif") when someone edits their
 * user talk page.
 *
 * The owner of the user talk page must also have the 'enotifusertalkpages' user
 * preference set to true.
 */
$wgEnotifUserTalk = false;

/**
 * Allow sending of e-mail notifications with the editor's address in "Reply-To".
 *
 * Note, enabling this only actually uses it in notification e-mails if the user
 * opted-in to this feature. This feature flag also controls visibility of the
 * 'enotifrevealaddr' preference, which, if users opt into, will make e-mail
 * notifications about their actions use their address as "Reply-To".
 *
 * To set the address as "From" instead of "Reply-To", also enable $wgEnotifFromEditor.
 *
 * If disabled, or not opted-in, notifications come from $wgPasswordSender.
 *
 * @var bool
 */
$wgEnotifRevealEditorAddress = false;

/**
 * Potentially send notification mails on minor edits to pages. This is enabled
 * by default.  If this is false, users will never be notified on minor edits.
 *
 * If it is true, editors with the 'nominornewtalk' right (typically bots) will still not
 * trigger notifications for minor edits they make (to any page, not just user talk).
 *
 * Finally, if the watcher/recipient has the 'enotifminoredits' user preference set to
 * false, they will not receive notifications for minor edits.
 *
 * User talk notifications are also affected by $wgEnotifMinorEdits, the above settings,
 * $wgEnotifUserTalk, and the preference described there.
 */
$wgEnotifMinorEdits = true;

/**
 * Send a generic mail instead of a personalised mail for each user.  This
 * always uses UTC as the time zone, and doesn't include the username.
 *
 * For pages with many users watching, this can significantly reduce mail load.
 * Has no effect when using sendmail rather than SMTP.
 */
$wgEnotifImpersonal = false;

/**
 * Maximum number of users to mail at once when using impersonal mail. Should
 * match the limit on your mail server.
 */
$wgEnotifMaxRecips = 500;

/**
 * Use real name instead of username in e-mail "from" field.
 */
$wgEnotifUseRealName = false;

/**
 * Array of usernames who will be sent a notification email for every change
 * which occurs on a wiki. Users will not be notified of their own changes.
 */
$wgUsersNotifiedOnAllChanges = [];

/** @} */ # end of email settings

/************************************************************************//**
 * @name   Database settings
 * @{
 */

/**
 * Database host name or IP address
 */
$wgDBserver = 'localhost';

/**
 * Database port number (for PostgreSQL and Microsoft SQL Server).
 */
$wgDBport = 5432;

/**
 * Name of the database; this should be alphanumeric and not contain spaces nor hyphens
 */
$wgDBname = 'my_wiki';

/**
 * Database username
 */
$wgDBuser = 'wikiuser';

/**
 * Database user's password
 */
$wgDBpassword = '';

/**
 * Database type
 */
$wgDBtype = 'mysql';

/**
 * Whether to use SSL in DB connection.
 *
 * This setting is only used if $wgLBFactoryConf['class'] is set to
 * '\Wikimedia\Rdbms\LBFactorySimple' and $wgDBservers is an empty array; otherwise
 * the DBO_SSL flag must be set in the 'flags' option of the database
 * connection to achieve the same functionality.
 */
$wgDBssl = false;

/**
 * Whether to use compression in DB connection.
 *
 * This setting is only used $wgLBFactoryConf['class'] is set to
 * '\Wikimedia\Rdbms\LBFactorySimple' and $wgDBservers is an empty array; otherwise
 * the DBO_COMPRESS flag must be set in the 'flags' option of the database
 * connection to achieve the same functionality.
 */
$wgDBcompress = false;

/**
 * Separate username for maintenance tasks. Leave as null to use the default.
 */
$wgDBadminuser = null;

/**
 * Separate password for maintenance tasks. Leave as null to use the default.
 */
$wgDBadminpassword = null;

/**
 * Search type.
 * Leave as null to select the default search engine for the
 * selected database type (eg SearchMySQL), or set to a class
 * name to override to a custom search engine.
 */
$wgSearchType = null;

/**
 * Alternative search types
 * Sometimes you want to support multiple search engines for testing. This
 * allows users to select their search engine of choice via url parameters
 * to Special:Search and the action=search API. If using this, there's no
 * need to add $wgSearchType to it, that is handled automatically.
 */
$wgSearchTypeAlternatives = null;

/**
 * Table name prefix.
 * This should be alphanumeric, contain neither spaces nor hyphens, and end in "_"
 */
$wgDBprefix = '';

/**
 * MySQL table options to use during installation or update
 */
$wgDBTableOptions = 'ENGINE=InnoDB, DEFAULT CHARSET=binary';

/**
 * SQL Mode - default is turning off all modes, including strict, if set.
 * null can be used to skip the setting for performance reasons and assume
 * DBA has done his best job.
 * String override can be used for some additional fun :-)
 */
$wgSQLMode = '';

/**
 * Mediawiki schema; this should be alphanumeric and not contain spaces nor hyphens
 */
$wgDBmwschema = null;

/**
 * Default group to use when getting database connections.
 * Will be used as default query group in ILoadBalancer::getConnection.
 * @since 1.32
 */
$wgDBDefaultGroup = null;

/**
 * To override default SQLite data directory ($docroot/../data)
 */
$wgSQLiteDataDir = '';

/**
 * Shared database for multiple wikis. Commonly used for storing a user table
 * for single sign-on. The server for this database must be the same as for the
 * main database.
 *
 * For backwards compatibility the shared prefix is set to the same as the local
 * prefix, and the user table is listed in the default list of shared tables.
 * The user_properties table is also added so that users will continue to have their
 * preferences shared (preferences were stored in the user table prior to 1.16)
 *
 * $wgSharedTables may be customized with a list of tables to share in the shared
 * database. However it is advised to limit what tables you do share as many of
 * MediaWiki's tables may have side effects if you try to share them.
 *
 * $wgSharedPrefix is the table prefix for the shared database. It defaults to
 * $wgDBprefix.
 *
 * $wgSharedSchema is the table schema for the shared database. It defaults to
 * $wgDBmwschema.
 *
 * @deprecated since 1.21 In new code, use the $wiki parameter to LBFactory::getMainLB() to
 *   access remote databases. Using LBFactory::getMainLB() allows the shared database to
 *   reside on separate servers to the wiki's own database, with suitable
 *   configuration of $wgLBFactoryConf.
 */
$wgSharedDB = null;

/**
 * @see $wgSharedDB
 */
$wgSharedPrefix = false;

/**
 * @see $wgSharedDB
 */
$wgSharedTables = [ 'user', 'user_properties' ];

/**
 * @see $wgSharedDB
 * @since 1.23
 */
$wgSharedSchema = false;

/**
 * Database load balancer
 * This is a two-dimensional array, an array of server info structures
 * Fields are:
 *   - host:        Host name
 *   - dbname:      Default database name
 *   - user:        DB user
 *   - password:    DB password
 *   - type:        DB type
 *   - driver:      DB driver (when there are multiple drivers)
 *
 *   - load:        Ratio of DB_REPLICA load, must be >=0, the sum of all loads must be >0.
 *                  If this is zero for any given server, no normal query traffic will be
 *                  sent to it. It will be excluded from lag checks in maintenance scripts.
 *                  The only way it can receive traffic is if groupLoads is used.
 *
 *   - groupLoads:  array of load ratios, the key is the query group name. A query may belong
 *                  to several groups, the most specific group defined here is used.
 *
 *   - flags:       bit field
 *                  - DBO_DEFAULT -- turns on DBO_TRX only if "cliMode" is off (recommended)
 *                  - DBO_DEBUG -- equivalent of $wgDebugDumpSql
 *                  - DBO_TRX -- wrap entire request in a transaction
 *                  - DBO_NOBUFFER -- turn off buffering (not useful in LocalSettings.php)
 *                  - DBO_PERSISTENT -- enables persistent database connections
 *                  - DBO_SSL -- uses SSL/TLS encryption in database connections, if available
 *                  - DBO_COMPRESS -- uses internal compression in database connections,
 *                                    if available
 *
 *   - max lag:     (optional) Maximum replication lag before a replica DB goes out of rotation
 *   - is static:   (optional) Set to true if the dataset is static and no replication is used.
 *   - cliMode:     (optional) Connection handles will not assume that requests are short-lived
 *                  nor that INSERT..SELECT can be rewritten into a buffered SELECT and INSERT.
 *                  [Default: uses value of $wgCommandLineMode]
 *
 *   These and any other user-defined properties will be assigned to the mLBInfo member
 *   variable of the Database object.
 *
 * Leave at false to use the single-server variables above. If you set this
 * variable, the single-server variables will generally be ignored (except
 * perhaps in some command-line scripts).
 *
 * The first server listed in this array (with key 0) will be the master. The
 * rest of the servers will be replica DBs. To prevent writes to your replica DBs due to
 * accidental misconfiguration or MediaWiki bugs, set read_only=1 on all your
 * replica DBs in my.cnf. You can set read_only mode at runtime using:
 *
 * @code
 *     SET @@read_only=1;
 * @endcode
 *
 * Since the effect of writing to a replica DB is so damaging and difficult to clean
 * up, we at Wikimedia set read_only=1 in my.cnf on all our DB servers, even
 * our masters, and then set read_only=0 on masters at runtime.
 */
$wgDBservers = false;

/**
 * Load balancer factory configuration
 * To set up a multi-master wiki farm, set the class here to something that
 * can return a LoadBalancer with an appropriate master on a call to getMainLB().
 * The class identified here is responsible for reading $wgDBservers,
 * $wgDBserver, etc., so overriding it may cause those globals to be ignored.
 *
 * The LBFactoryMulti class is provided for this purpose, please see
 * includes/db/LBFactoryMulti.php for configuration information.
 */
$wgLBFactoryConf = [ 'class' => \Wikimedia\Rdbms\LBFactorySimple::class ];

/**
 * After a state-changing request is done by a client, this determines
 * how many seconds that client should keep using the master datacenter.
 * This avoids unexpected stale or 404 responses due to replication lag.
 * @since 1.27
 */
$wgDataCenterUpdateStickTTL = 10;

/**
 * File to log database errors to
 */
$wgDBerrorLog = false;

/**
 * Timezone to use in the error log.
 * Defaults to the wiki timezone ($wgLocaltimezone).
 *
 * A list of usable timezones can found at:
 * https://www.php.net/manual/en/timezones.php
 *
 * @par Examples:
 * @code
 * $wgDBerrorLogTZ = 'UTC';
 * $wgDBerrorLogTZ = 'GMT';
 * $wgDBerrorLogTZ = 'PST8PDT';
 * $wgDBerrorLogTZ = 'Europe/Sweden';
 * $wgDBerrorLogTZ = 'CET';
 * @endcode
 *
 * @since 1.20
 */
$wgDBerrorLogTZ = false;

/**
 * Set true to enable Oracle DCRP (supported from 11gR1 onward)
 *
 * To use this feature set to true and use a datasource defined as
 * POOLED (i.e. in tnsnames definition set server=pooled in connect_data
 * block).
 *
 * Starting from 11gR1 you can use DCRP (Database Resident Connection
 * Pool) that maintains established sessions and reuses them on new
 * connections.
 *
 * Not completely tested, but it should fall back on normal connection
 * in case the pool is full or the datasource is not configured as
 * pooled.
 * And the other way around; using oci_pconnect on a non pooled
 * datasource should produce a normal connection.
 *
 * When it comes to frequent shortlived DB connections like with MW
 * Oracle tends to s***. The problem is the driver connects to the
 * database reasonably fast, but establishing a session takes time and
 * resources. MW does not rely on session state (as it does not use
 * features such as package variables) so establishing a valid session
 * is in this case an unwanted overhead that just slows things down.
 *
 * @warning EXPERIMENTAL!
 */
$wgDBOracleDRCP = false;

/**
 * Other wikis on this site, can be administered from a single developer account.
 *
 * @var string[] List of wiki DB domain IDs; the format of each ID consist of 1-3 hyphen
 *   delimited alphanumeric components (each with no hyphens nor spaces) of any of the forms:
 *   - "<DB NAME>-<DB SCHEMA>-<TABLE PREFIX>"
 *   - "<DB NAME>-<TABLE PREFIX>"
 *   - "<DB NAME>"
 * If hyphens appear in any of the components, then the domain ID parsing may not work
 * in all cases and site functionality might be affected. If the schema ($wgDBmwschema)
 * is left to the default "mediawiki" for all wikis, then the schema should be omitted
 * from these IDs.
 */
$wgLocalDatabases = [];

/**
 * If lag is higher than $wgSlaveLagWarning, show a warning in some special
 * pages (like watchlist).  If the lag is higher than $wgSlaveLagCritical,
 * show a more obvious warning.
 */
$wgSlaveLagWarning = 10;

/**
 * @see $wgSlaveLagWarning
 */
$wgSlaveLagCritical = 30;

/**
 * Use Windows Authentication instead of $wgDBuser / $wgDBpassword for MS SQL Server
 */
$wgDBWindowsAuthentication = false;

/**@}*/ # End of DB settings }

/************************************************************************//**
 * @name   Text storage
 * @{
 */

/**
 * We can also compress text stored in the 'text' table. If this is set on, new
 * revisions will be compressed on page save if zlib support is available. Any
 * compressed revisions will be decompressed on load regardless of this setting,
 * but will not be readable at all* if zlib support is not available.
 */
$wgCompressRevisions = false;

/**
 * External stores allow including content
 * from non database sources following URL links.
 *
 * Short names of ExternalStore classes may be specified in an array here:
 * @code
 * $wgExternalStores = [ "http","file","custom" ]...
 * @endcode
 *
 * CAUTION: Access to database might lead to code execution
 */
$wgExternalStores = [];

/**
 * An array of external MySQL servers.
 *
 * @par Example:
 * Create a cluster named 'cluster1' containing three servers:
 * @code
 * $wgExternalServers = [
 *     'cluster1' => <array in the same format as $wgDBservers>
 * ];
 * @endcode
 *
 * Used by \Wikimedia\Rdbms\LBFactorySimple, may be ignored if $wgLBFactoryConf is set to
 * another class.
 */
$wgExternalServers = [];

/**
 * The place to put new revisions, false to put them in the local text table.
 * Part of a URL, e.g. DB://cluster1
 *
 * Can be an array instead of a single string, to enable data distribution. Keys
 * must be consecutive integers, starting at zero.
 *
 * @par Example:
 * @code
 * $wgDefaultExternalStore = [ 'DB://cluster1', 'DB://cluster2' ];
 * @endcode
 *
 * @var array
 */
$wgDefaultExternalStore = false;

/**
 * Revision text may be cached in $wgMemc to reduce load on external storage
 * servers and object extraction overhead for frequently-loaded revisions.
 *
 * Set to 0 to disable, or number of seconds before cache expiry.
 */
$wgRevisionCacheExpiry = 86400 * 7;

/** @} */ # end text storage }

/************************************************************************//**
 * @name   Performance hacks and limits
 * @{
 */

/**
 * Disable database-intensive features
 */
$wgMiserMode = false;

/**
 * Disable all query pages if miser mode is on, not just some
 */
$wgDisableQueryPages = false;

/**
 * Number of rows to cache in 'querycache' table when miser mode is on
 */
$wgQueryCacheLimit = 1000;

/**
 * Number of links to a page required before it is deemed "wanted"
 */
$wgWantedPagesThreshold = 1;

/**
 * Enable slow parser functions
 */
$wgAllowSlowParserFunctions = false;

/**
 * Allow schema updates
 */
$wgAllowSchemaUpdates = true;

/**
 * Maximum article size in kilobytes
 */
$wgMaxArticleSize = 2048;

/**
 * The minimum amount of memory that MediaWiki "needs"; MediaWiki will try to
 * raise PHP's memory limit if it's below this amount.
 */
$wgMemoryLimit = "50M";

/**
 * The minimum amount of time that MediaWiki needs for "slow" write request,
 * particularly ones with multiple non-atomic writes that *should* be as
 * transactional as possible; MediaWiki will call set_time_limit() if needed.
 * @since 1.26
 */
$wgTransactionalTimeLimit = 120;

/** @} */ # end performance hacks }

/************************************************************************//**
 * @name   Cache settings
 * @{
 */

/**
 * Directory for caching data in the local filesystem. Should not be accessible
 * from the web.
 *
 * Note: if multiple wikis share the same localisation cache directory, they
 * must all have the same set of extensions. You can set a directory just for
 * the localisation cache using $wgLocalisationCacheConf['storeDirectory'].
 */
$wgCacheDirectory = false;

/**
 * Main cache type. This should be a cache with fast access, but it may have
 * limited space. By default, it is disabled, since the stock database cache
 * is not fast enough to make it worthwhile.
 *
 * The options are:
 *
 *   - CACHE_ANYTHING:   Use anything, as long as it works
 *   - CACHE_NONE:       Do not cache
 *   - CACHE_DB:         Store cache objects in the DB
 *   - CACHE_MEMCACHED:  MemCached, must specify servers in $wgMemCachedServers
 *   - CACHE_ACCEL:      APC, APCU or WinCache
 *   - (other):          A string may be used which identifies a cache
 *                       configuration in $wgObjectCaches.
 *
 * @see $wgMessageCacheType, $wgParserCacheType
 */
$wgMainCacheType = CACHE_NONE;

/**
 * The cache type for storing the contents of the MediaWiki namespace. This
 * cache is used for a small amount of data which is expensive to regenerate.
 *
 * For available types see $wgMainCacheType.
 */
$wgMessageCacheType = CACHE_ANYTHING;

/**
 * The cache type for storing article HTML. This is used to store data which
 * is expensive to regenerate, and benefits from having plenty of storage space.
 *
 * For available types see $wgMainCacheType.
 */
$wgParserCacheType = CACHE_ANYTHING;

/**
 * The cache type for storing session data.
 *
 * For available types see $wgMainCacheType.
 */
$wgSessionCacheType = CACHE_ANYTHING;

/**
 * The cache type for storing language conversion tables,
 * which are used when parsing certain text and interface messages.
 *
 * For available types see $wgMainCacheType.
 *
 * @since 1.20
 */
$wgLanguageConverterCacheType = CACHE_ANYTHING;

/**
 * Advanced object cache configuration.
 *
 * Use this to define the class names and constructor parameters which are used
 * for the various cache types. Custom cache types may be defined here and
 * referenced from $wgMainCacheType, $wgMessageCacheType, $wgParserCacheType,
 * or $wgLanguageConverterCacheType.
 *
 * The format is an associative array where the key is a cache identifier, and
 * the value is an associative array of parameters. The "class" parameter is the
 * class name which will be used. Alternatively, a "factory" parameter may be
 * given, giving a callable function which will generate a suitable cache object.
 */
$wgObjectCaches = [
        CACHE_NONE => [ 'class' => EmptyBagOStuff::class, 'reportDupes' => false ],
        CACHE_DB => [ 'class' => SqlBagOStuff::class, 'loggroup' => 'SQLBagOStuff' ],

        CACHE_ANYTHING => [ 'factory' => 'ObjectCache::newAnything' ],
        CACHE_ACCEL => [ 'factory' => 'ObjectCache::getLocalServerInstance' ],
        CACHE_MEMCACHED => [ 'class' => MemcachedPhpBagOStuff::class, 'loggroup' => 'memcached' ],

        'db-replicated' => [
                'class'       => ReplicatedBagOStuff::class,
                'readFactory' => [
                        'class' => SqlBagOStuff::class,
                        'args'  => [ [ 'slaveOnly' => true ] ]
                ],
                'writeFactory' => [
                        'class' => SqlBagOStuff::class,
                        'args'  => [ [ 'slaveOnly' => false ] ]
                ],
                'loggroup'  => 'SQLBagOStuff',
                'reportDupes' => false
        ],

        'apc' => [ 'class' => APCBagOStuff::class, 'reportDupes' => false ],
        'apcu' => [ 'class' => APCUBagOStuff::class, 'reportDupes' => false ],
        'wincache' => [ 'class' => WinCacheBagOStuff::class, 'reportDupes' => false ],
        'memcached-php' => [ 'class' => MemcachedPhpBagOStuff::class, 'loggroup' => 'memcached' ],
        'memcached-pecl' => [ 'class' => MemcachedPeclBagOStuff::class, 'loggroup' => 'memcached' ],
        'hash' => [ 'class' => HashBagOStuff::class, 'reportDupes' => false ],
];

/**
 * Main Wide-Area-Network cache type. This should be a cache with fast access,
 * but it may have limited space. By default, it is disabled, since the basic stock
 * cache is not fast enough to make it worthwhile. For single data-center setups, this can
 * simply be pointed to a cache in $wgWANObjectCaches that uses a local $wgObjectCaches
 * cache with a relayer of type EventRelayerNull.
 *
 * The options are:
 *   - false:            Configure the cache using $wgMainCacheType, without using
 *                       a relayer (only matters if there are multiple data-centers)
 *   - CACHE_NONE:       Do not cache
 *   - (other):          A string may be used which identifies a cache
 *                       configuration in $wgWANObjectCaches
 * @since 1.26
 */
$wgMainWANCache = false;

/**
 * Advanced WAN object cache configuration.
 *
 * Each WAN cache wraps a registered object cache (for the local cluster)
 * and it must also be configured to point to a PubSub instance. Subscribers
 * must be configured to relay purges to the actual cache servers.
 *
 * The format is an associative array where the key is a cache identifier, and
 * the value is an associative array of parameters. The "cacheId" parameter is
 * a cache identifier from $wgObjectCaches. The "loggroup" parameter controls
 * where log events are sent.
 *
 * @since 1.26
 */
$wgWANObjectCaches = [
        CACHE_NONE => [
                'class'    => WANObjectCache::class,
                'cacheId'  => CACHE_NONE
        ]
        /* Example of a simple single data-center cache:
        'memcached-php' => [
                'class'    => WANObjectCache::class,
                'cacheId'  => 'memcached-php'
        ]
        */
];

/**
 * Verify and enforce WAN cache purges using reliable DB sources as streams.
 *
 * These secondary cache purges are de-duplicated via simple cache mutexes.
 * This improves consistency when cache purges are lost, which becomes more likely
 * as more cache servers are added or if there are multiple datacenters. Only keys
 * related to important mutable content will be checked.
 *
 * @var bool
 * @since 1.29
 */
$wgEnableWANCacheReaper = false;

/**
 * Main object stash type. This should be a fast storage system for storing
 * lightweight data like hit counters and user activity. Sites with multiple
 * data-centers should have this use a store that replicates all writes. The
 * store should have enough consistency for CAS operations to be usable.
 * Reads outside of those needed for merge() may be eventually consistent.
 *
 * The options are:
 *   - db:      Store cache objects in the DB
 *   - (other): A string may be used which identifies a cache
 *              configuration in $wgObjectCaches
 *
 * @since 1.26
 */
$wgMainStash = 'db-replicated';

/**
 * The expiry time for the parser cache, in seconds.
 * The default is 86400 (one day).
 */
$wgParserCacheExpireTime = 86400;

/**
 * The expiry time to use for session storage, in seconds.
 */
$wgObjectCacheSessionExpiry = 3600;

/**
 * Whether to use PHP session handling ($_SESSION and session_*() functions)
 *
 * If the constant MW_NO_SESSION is defined, this is forced to 'disable'.
 *
 * If the constant MW_NO_SESSION_HANDLER is defined, this is ignored and PHP
 * session handling will function independently of SessionHandler.
 * SessionHandler and PHP's session handling may attempt to override each
 * others' cookies.
 *
 * @since 1.27
 * @var string
 *  - 'enable': Integrate with PHP's session handling as much as possible.
 *  - 'warn': Integrate but log warnings if anything changes $_SESSION.
 *  - 'disable': Throw exceptions if PHP session handling is used.
 */
$wgPHPSessionHandling = 'enable';

/**
 * Number of internal PBKDF2 iterations to use when deriving session secrets.
 *
 * @since 1.28
 */
$wgSessionPbkdf2Iterations = 10001;

/**
 * If enabled, will send MemCached debugging information to $wgDebugLogFile
 */
$wgMemCachedDebug = false;

/**
 * The list of MemCached servers and port numbers
 */
$wgMemCachedServers = [ '127.0.0.1:11211' ];

/**
 * Use persistent connections to MemCached, which are shared across multiple
 * requests.
 */
$wgMemCachedPersistent = false;

/**
 * Read/write timeout for MemCached server communication, in microseconds.
 */
$wgMemCachedTimeout = 500000;

/**
 * Set this to true to maintain a copy of the message cache on the local server.
 *
 * This layer of message cache is in addition to the one configured by $wgMessageCacheType.
 *
 * The local copy is put in APC. If APC is not installed, this setting does nothing.
 *
 * Note that this is about the message cache, which stores interface messages
 * maintained as wiki pages. This is separate from the localisation cache for interface
 * messages provided by the software, which is configured by $wgLocalisationCacheConf.
 */
$wgUseLocalMessageCache = false;

/**
 * Instead of caching everything, only cache those messages which have
 * been customised in the site content language. This means that
 * MediaWiki:Foo/ja is ignored if MediaWiki:Foo doesn't exist.
 * This option is probably only useful for translatewiki.net.
 */
$wgAdaptiveMessageCache = false;

/**
 * Localisation cache configuration.
 *
 * Used by Language::getLocalisationCache() to decide how to construct the
 * LocalisationCache instance. Associative array with keys:
 *
 * class:       The class to use for constructing the LocalisationCache object.
 *              This may be overridden by extensions to a subclass of LocalisationCache.
 *              Sub classes are expected to still honor the 'storeClass', 'storeDirectory'
 *              and 'manualRecache' options where applicable.
 *
 * storeClass:  Which LCStore class implementation to use. This is optional.
 *              The default LocalisationCache class offers the 'store' option
 *              as abstraction for this.
 *
 * store:       How and where to store localisation cache data.
 *              This option is ignored if 'storeClass' is explicitly set to a class name.
 *              Must be one of:
 *              - 'detect' (default): Automatically select 'files' if 'storeDirectory'
 *                 or $wgCacheDirectory is set, and fall back to 'db' otherwise.
 *              - 'files': Store in $wgCacheDirectory as CDB files.
 *              - 'array': Store in $wgCacheDirectory as PHP static array files.
 *              - 'db': Store in the l10n_cache database table.
 *
 * storeDirectory: If the selected LCStore class puts its data in files, then it
 *                 will use this directory. If set to false (default), then
 *                 $wgCacheDirectory is used instead.
 *
 * manualRecache: Set this to true to disable cache updates on web requests.
 *                Use maintenance/rebuildLocalisationCache.php instead.
 */
$wgLocalisationCacheConf = [
        'class' => LocalisationCache::class,
        'store' => 'detect',
        'storeClass' => false,
        'storeDirectory' => false,
        'manualRecache' => false,
];

/**
 * Allow client-side caching of pages
 */
$wgCachePages = true;

/**
 * Set this to current time to invalidate all prior cached pages. Affects both
 * client-side and server-side caching.
 * You can get the current date on your server by using the command:
 * @verbatim
 *   date +%Y%m%d%H%M%S
 * @endverbatim
 */
$wgCacheEpoch = '20030516000000';

/**
 * Directory where GitInfo will look for pre-computed cache files. If false,
 * $wgCacheDirectory/gitinfo will be used.
 */
$wgGitInfoCacheDirectory = false;

/**
 * This will cache static pages for non-logged-in users to reduce
 * database traffic on public sites. ResourceLoader requests to default
 * language and skins are cached as well as single module requests.
 */
$wgUseFileCache = false;

/**
 * Depth of the subdirectory hierarchy to be created under
 * $wgFileCacheDirectory.  The subdirectories will be named based on
 * the MD5 hash of the title.  A value of 0 means all cache files will
 * be put directly into the main file cache directory.
 */
$wgFileCacheDepth = 2;

/**
 * Append a configured value to the parser cache and the sitenotice key so
 * that they can be kept separate for some class of activity.
 */
$wgRenderHashAppend = '';

/**
 * If on, the sidebar navigation links are cached for users with the
 * current language set. This can save a touch of load on a busy site
 * by shaving off extra message lookups.
 *
 * However it is also fragile: changing the site configuration, or
 * having a variable $wgArticlePath, can produce broken links that
 * don't update as expected.
 */
$wgEnableSidebarCache = false;

/**
 * Expiry time for the sidebar cache, in seconds
 */
$wgSidebarCacheExpiry = 86400;

/**
 * When using the file cache, we can store the cached HTML gzipped to save disk
 * space. Pages will then also be served compressed to clients that support it.
 *
 * Requires zlib support enabled in PHP.
 */
$wgUseGzip = false;

/**
 * Invalidate various caches when LocalSettings.php changes. This is equivalent
 * to setting $wgCacheEpoch to the modification time of LocalSettings.php, as
 * was previously done in the default LocalSettings.php file.
 *
 * On high-traffic wikis, this should be set to false, to avoid the need to
 * check the file modification time, and to avoid the performance impact of
 * unnecessary cache invalidations.
 */
$wgInvalidateCacheOnLocalSettingsChange = true;

/**
 * When loading extensions through the extension registration system, this
 * can be used to invalidate the cache. A good idea would be to set this to
 * one file, you can just `touch` that one to invalidate the cache
 *
 * @par Example:
 * @code
 * $wgExtensionInfoMtime = filemtime( "$IP/LocalSettings.php" );
 * @endcode
 *
 * If set to false, the mtime for each individual JSON file will be checked,
 * which can be slow if a large number of extensions are being loaded.
 *
 * @var int|bool
 */
$wgExtensionInfoMTime = false;

/** @} */ # end of cache settings

/************************************************************************//**
 * @name   HTTP proxy (CDN) settings
 *
 * Many of these settings apply to any HTTP proxy used in front of MediaWiki,
 * although they are sometimes still referred to as Squid settings for
 * historical reasons.
 *
 * Achieving a high hit ratio with an HTTP proxy requires special
 * configuration. See https://www.mediawiki.org/wiki/Manual:Squid_caching for
 * more details.
 *
 * @{
 */

/**
 * Enable/disable CDN.
 * See https://www.mediawiki.org/wiki/Manual:Squid_caching
 *
 * @since 1.34 Renamed from $wgUseSquid.
 */
$wgUseCdn = false;

/**
 * If you run Squid3 with ESI support, enable this (default:false):
 * @deprecated in 1.33. This was a now-defunct experimental feature.
 */
$wgUseESI = false;

/**
 * Send the Key HTTP header for better caching.
 * See https://datatracker.ietf.org/doc/draft-ietf-httpbis-key/ for details.
 * @since 1.27
 * @deprecated in 1.32, the IETF spec expired without becoming a standard.
 */
$wgUseKeyHeader = false;

/**
 * Add X-Forwarded-Proto to the Vary and Key headers for API requests and
 * RSS/Atom feeds. Use this if you have an SSL termination setup
 * and need to split the cache between HTTP and HTTPS for API requests,
 * feed requests and HTTP redirect responses in order to prevent cache
 * pollution. This does not affect 'normal' requests to index.php other than
 * HTTP redirects.
 */
$wgVaryOnXFP = false;

/**
 * Internal server name as known to CDN, if different.
 *
 * @par Example:
 * @code
 * $wgInternalServer = 'http://yourinternal.tld:8000';
 * @endcode
 */
$wgInternalServer = false;

/**
 * Cache TTL for the CDN sent as s-maxage (without ESI) or
 * Surrogate-Control (with ESI). Without ESI, you should strip
 * out s-maxage in the CDN config.
 *
 * 18000 seconds = 5 hours, more cache hits with 2678400 = 31 days.
 *
 * @since 1.34 Renamed from $wgSquidMaxage
 */
$wgCdnMaxAge = 18000;

/**
 * Cache timeout for the CDN when DB replica DB lag is high
 * @see $wgCdnMaxAge
 *
 * @since 1.27
 */
$wgCdnMaxageLagged = 30;

/**
 * If set, any SquidPurge call on a URL or URLs will send a second purge no less than
 * this many seconds later via the job queue. This requires delayed job support.
 * This should be safely higher than the 'max lag' value in $wgLBFactoryConf, so that
 * replica DB lag does not cause page to be stuck in stales states in CDN.
 *
 * This also fixes race conditions in two-tiered CDN setups (e.g. cdn2 => cdn1 => MediaWiki).
 * If a purge for a URL reaches cdn2 before cdn1 and a request reaches cdn2 for that URL,
 * it will populate the response from the stale cdn1 value. When cdn1 gets the purge, cdn2
 * will still be stale. If the rebound purge delay is safely higher than the time to relay
 * a purge to all nodes, then the rebound purge will clear cdn2 after cdn1 was cleared.
 *
 * @since 1.27
 */
$wgCdnReboundPurgeDelay = 0;

/**
 * Cache timeout for the CDN when a response is known to be wrong or incomplete (due to load)
 * @see $wgCdnMaxAge
 * @since 1.27
 */
$wgCdnMaxageSubstitute = 60;

/**
 * Default maximum age for raw CSS/JS accesses
 *
 * 300 seconds = 5 minutes.
 */
$wgForcedRawSMaxage = 300;

/**
 * List of proxy servers to purge on changes; default port is 80. Use IP addresses.
 *
 * When MediaWiki is running behind a proxy, it will trust X-Forwarded-For
 * headers sent/modified from these proxies when obtaining the remote IP address
 *
 * For a list of trusted servers which *aren't* purged, see $wgSquidServersNoPurge.
 *
 * @since 1.34 Renamed from $wgSquidServers.
 */
$wgCdnServers = [];

/**
 * As with $wgCdnServers, except these servers aren't purged on page changes;
 * use to set a list of trusted proxies, etc. Supports both individual IP
 * addresses and CIDR blocks.
 *
 * @since 1.23 Supports CIDR ranges
 * @since 1.34 Renamed from $wgSquidServersNoPurge
 */
$wgCdnServersNoPurge = [];

/**
 * Whether to use a Host header in purge requests sent to the proxy servers
 * configured in $wgCdnServers. Set this to false to support a CDN
 * configured in forward-proxy mode.
 *
 * If this is set to true, a Host header will be sent, and only the path
 * component of the URL will appear on the request line, as if the request
 * were a non-proxy HTTP 1.1 request. Varnish only supports this style of
 * request. Squid supports this style of request only if reverse-proxy mode
 * (http_port ... accel) is enabled.
 *
 * If this is set to false, no Host header will be sent, and the absolute URL
 * will be sent in the request line, as is the standard for an HTTP proxy
 * request in both HTTP 1.0 and 1.1. This style of request is not supported
 * by Varnish, but is supported by Squid in either configuration (forward or
 * reverse).
 *
 * @since 1.21
 * @deprecated since 1.33, will always be true in a future release.
 */
$wgSquidPurgeUseHostHeader = true;

/**
 * Routing configuration for HTCP multicast purging. Add elements here to
 * enable HTCP and determine which purges are sent where. If set to an empty
 * array, HTCP is disabled.
 *
 * Each key in this array is a regular expression to match against the purged
 * URL, or an empty string to match all URLs. The purged URL is matched against
 * the regexes in the order specified, and the first rule whose regex matches
 * is used, all remaining rules will thus be ignored.
 *
 * @par Example configuration to send purges for upload.wikimedia.org to one
 * multicast group and all other purges to another:
 * @code
 * $wgHTCPRouting = [
 *         '|^https?://upload\.wikimedia\.org|' => [
 *                 'host' => '239.128.0.113',
 *                 'port' => 4827,
 *         ],
 *         '' => [
 *                 'host' => '239.128.0.112',
 *                 'port' => 4827,
 *         ],
 * ];
 * @endcode
 *
 * You can also pass an array of hosts to send purges too. This is useful when
 * you have several multicast groups or unicast address that should receive a
 * given purge.  Multiple hosts support was introduced in MediaWiki 1.22.
 *
 * @par Example of sending purges to multiple hosts:
 * @code
 * $wgHTCPRouting = [
 *     '' => [
 *         // Purges to text caches using multicast
 *         [ 'host' => '239.128.0.114', 'port' => '4827' ],
 *         // Purges to a hardcoded list of caches
 *         [ 'host' => '10.88.66.1', 'port' => '4827' ],
 *         [ 'host' => '10.88.66.2', 'port' => '4827' ],
 *         [ 'host' => '10.88.66.3', 'port' => '4827' ],
 *     ],
 * ];
 * @endcode
 *
 * @since 1.22
 * @see $wgHTCPMulticastTTL
 */
$wgHTCPRouting = [];

/**
 * HTCP multicast TTL.
 * @see $wgHTCPRouting
 */
$wgHTCPMulticastTTL = 1;

/**
 * Should forwarded Private IPs be accepted?
 */
$wgUsePrivateIPs = false;

/** @} */ # end of HTTP proxy settings

/************************************************************************//**
 * @name   Language, regional and character encoding settings
 * @{
 */

/**
 * Site language code. See languages/data/Names.php for languages supported by
 * MediaWiki out of the box. Not all languages listed there have translations,
 * see languages/messages/ for the list of languages with some localisation.
 *
 * Warning: Don't use any of MediaWiki's deprecated language codes listed in
 * LanguageCode::getDeprecatedCodeMapping or $wgDummyLanguageCodes, like "no"
 * for Norwegian (use "nb" instead). If you do, things will break unexpectedly.
 *
 * This defines the default interface language for all users, but users can
 * change it in their preferences.
 *
 * This also defines the language of pages in the wiki. The content is wrapped
 * in a html element with lang=XX attribute. This behavior can be overridden
 * via hooks, see Title::getPageLanguage.
 */
$wgLanguageCode = 'en';

/**
 * Language cache size, or really how many languages can we handle
 * simultaneously without degrading to crawl speed.
 */
$wgLangObjCacheSize = 10;

/**
 * Some languages need different word forms, usually for different cases.
 * Used in Language::convertGrammar().
 *
 * @par Example:
 * @code
 * $wgGrammarForms['en']['genitive']['car'] = 'car\'s';
 * @endcode
 */
$wgGrammarForms = [];

/**
 * Treat language links as magic connectors, not inline links
 */
$wgInterwikiMagic = true;

/**
 * Hide interlanguage links from the sidebar
 */
$wgHideInterlanguageLinks = false;

/**
 * List of additional interwiki prefixes that should be treated as
 * interlanguage links (i.e. placed in the sidebar).
 * Notes:
 * - This will not do anything unless the prefixes are defined in the interwiki
 *   map.
 * - The display text for these custom interlanguage links will be fetched from
 *   the system message "interlanguage-link-xyz" where xyz is the prefix in
 *   this array.
 * - A friendly name for each site, used for tooltip text, may optionally be
 *   placed in the system message "interlanguage-link-sitename-xyz" where xyz is
 *   the prefix in this array.
 */
$wgExtraInterlanguageLinkPrefixes = [];

/**
 * List of language names or overrides for default names in Names.php
 */
$wgExtraLanguageNames = [];

/**
 * List of mappings from one language code to another.
 * This array makes the codes not appear as a selectable language on the
 * installer, and excludes them when running the transstat.php script.
 *
 * In Setup.php, the variable $wgDummyLanguageCodes is created by combining
 * these codes with a list of "deprecated" codes, which are mostly leftovers
 * from renames or other legacy things, and the internal codes 'qqq' and 'qqx'.
 * If a mapping in $wgExtraLanguageCodes collide with a built-in mapping, the
 * value in $wgExtraLanguageCodes will be used.
 *
 * @since 1.29
 */
$wgExtraLanguageCodes = [
        // Language codes of macro languages, which get mapped to the main language
        'bh' => 'bho', // Bihari language family
        'no' => 'nb', // Norwegian language family

        // Language variants which get mapped to the main language
        'simple' => 'en', // Simple English
];

/**
 * Functionally the same as $wgExtraLanguageCodes, but deprecated. Instead of
 * appending values to this array, append them to $wgExtraLanguageCodes.
 *
 * @deprecated since 1.29
 */
$wgDummyLanguageCodes = [];

/**
 * Set this to true to replace Arabic presentation forms with their standard
 * forms in the U+0600-U+06FF block. This only works if $wgLanguageCode is
 * set to "ar".
 *
 * Note that pages with titles containing presentation forms will become
 * inaccessible, run maintenance/cleanupTitles.php to fix this.
 *
 * @deprecated since 1.33: in the future will always be true.
 */
$wgFixArabicUnicode = true;

/**
 * Set this to true to replace ZWJ-based chillu sequences in Malayalam text
 * with their Unicode 5.1 equivalents. This only works if $wgLanguageCode is
 * set to "ml". Note that some clients (even new clients as of 2010) do not
 * support these characters.
 *
 * If you enable this on an existing wiki, run maintenance/cleanupTitles.php to
 * fix any ZWJ sequences in existing page titles.
 *
 * @deprecated since 1.33: in the future will always be true.
 */
$wgFixMalayalamUnicode = true;

/**
 * Set this to always convert certain Unicode sequences to modern ones
 * regardless of the content language. This has a small performance
 * impact.
 *
 * See $wgFixArabicUnicode and $wgFixMalayalamUnicode for conversion
 * details.
 *
 * @since 1.17
 */
$wgAllUnicodeFixes = false;

/**
 * Set this to eg 'ISO-8859-1' to perform character set conversion when
 * loading old revisions not marked with "utf-8" flag. Use this when
 * converting a wiki from MediaWiki 1.4 or earlier to UTF-8 without the
 * burdensome mass conversion of old text data.
 *
 * @note This DOES NOT touch any fields other than old_text. Titles, comments,
 * user names, etc still must be converted en masse in the database before
 * continuing as a UTF-8 wiki.
 */
$wgLegacyEncoding = false;

/**
 * If set to true, the MediaWiki 1.4 to 1.5 schema conversion will
 * create stub reference rows in the text table instead of copying
 * the full text of all current entries from 'cur' to 'text'.
 *
 * This will speed up the conversion step for large sites, but
 * requires that the cur table be kept around for those revisions
 * to remain viewable.
 *
 * This option affects the updaters *only*. Any present cur stub
 * revisions will be readable at runtime regardless of this setting.
 */
$wgLegacySchemaConversion = false;

/**
 * Enable dates like 'May 12' instead of '12 May', if the default date format
 * is 'dmy or mdy'.
 */
$wgAmericanDates = false;

/**
 * For Hindi and Arabic use local numerals instead of Western style (0-9)
 * numerals in interface.
 */
$wgTranslateNumerals = true;

/**
 * Translation using MediaWiki: namespace.
 * Interface messages will be loaded from the database.
 */
$wgUseDatabaseMessages = true;

/**
 * Expiry time for the message cache key
 */
$wgMsgCacheExpiry = 86400;

/**
 * Maximum entry size in the message cache, in bytes
 */
$wgMaxMsgCacheEntrySize = 10000;

/**
 * Whether to enable language variant conversion.
 */
$wgDisableLangConversion = false;

/**
 * Whether to enable language variant conversion for links.
 */
$wgDisableTitleConversion = false;

/**
 * Default variant code, if false, the default will be the language code
 */
$wgDefaultLanguageVariant = false;

/**
 * Whether to enable the pig Latin variant of English (en-x-piglatin),
 * used to ease variant development work.
 */
$wgUsePigLatinVariant = false;

/**
 * Disabled variants array of language variant conversion.
 *
 * @par Example:
 * @code
 *  $wgDisabledVariants[] = 'zh-mo';
 *  $wgDisabledVariants[] = 'zh-my';
 * @endcode
 */
$wgDisabledVariants = [];

/**
 * Like $wgArticlePath, but on multi-variant wikis, this provides a
 * path format that describes which parts of the URL contain the
 * language variant.
 *
 * @par Example:
 * @code
 *     $wgLanguageCode = 'sr';
 *     $wgVariantArticlePath = '/$2/$1';
 *     $wgArticlePath = '/wiki/$1';
 * @endcode
 *
 * A link to /wiki/ would be redirected to /sr/Главна_страна
 *
 * It is important that $wgArticlePath not overlap with possible values
 * of $wgVariantArticlePath.
 */
$wgVariantArticlePath = false;

/**
 * Show a bar of language selection links in the user login and user
 * registration forms; edit the "loginlanguagelinks" message to
 * customise these.
 */
$wgLoginLanguageSelector = false;

/**
 * When translating messages with wfMessage(), it is not always clear what
 * should be considered UI messages and what should be content messages.
 *
 * For example, for the English Wikipedia, there should be only one 'mainpage',
 * so when getting the link for 'mainpage', we should treat it as site content
 * and call ->inContentLanguage()->text(), but for rendering the text of the
 * link, we call ->text(). The code behaves this way by default. However,
 * sites like the Wikimedia Commons do offer different versions of 'mainpage'
 * and the like for different languages. This array provides a way to override
 * the default behavior.
 *
 * @par Example:
 * To allow language-specific main page and community
 * portal:
 * @code
 *     $wgForceUIMsgAsContentMsg = [ 'mainpage', 'portal-url' ];
 * @endcode
 */
$wgForceUIMsgAsContentMsg = [];

/**
 * Fake out the timezone that the server thinks it's in. This will be used for
 * date display and not for what's stored in the DB. Leave to null to retain
 * your server's OS-based timezone value.
 *
 * This variable is currently used only for signature formatting and for local
 * time/date parser variables ({{LOCALTIME}} etc.)
 *
 * Timezones can be translated by editing MediaWiki messages of type
 * timezone-nameinlowercase like timezone-utc.
 *
 * A list of usable timezones can found at:
 * https://www.php.net/manual/en/timezones.php
 *
 * @par Examples:
 * @code
 * $wgLocaltimezone = 'UTC';
 * $wgLocaltimezone = 'GMT';
 * $wgLocaltimezone = 'PST8PDT';
 * $wgLocaltimezone = 'Europe/Sweden';
 * $wgLocaltimezone = 'CET';
 * @endcode
 */
$wgLocaltimezone = null;

/**
 * Set an offset from UTC in minutes to use for the default timezone setting
 * for anonymous users and new user accounts.
 *
 * This setting is used for most date/time displays in the software, and is
 * overridable in user preferences. It is *not* used for signature timestamps.
 *
 * By default, this will be set to match $wgLocaltimezone.
 */
$wgLocalTZoffset = null;

/**
 * List of Unicode characters for which capitalization is overridden in
 * Language::ucfirst. The characters should be
 * represented as char_to_convert => conversion_override. See T219279 for details
 * on why this is useful during php version transitions.
 *
 * @warning: EXPERIMENTAL!
 *
 * @since 1.34
 * @var array
 */
$wgOverrideUcfirstCharacters = [];

/** @} */ # End of language/charset settings

/*************************************************************************//**
 * @name   Output format and skin settings
 * @{
 */

/**
 * The default Content-Type header.
 */
$wgMimeType = 'text/html';

/**
 * Previously used as content type in HTML script tags. This is now ignored since
 * HTML5 doesn't require a MIME type for script tags (javascript is the default).
 * It was also previously used by RawAction to determine the ctype query parameter
 * value that will result in a javascript response.
 * @deprecated since 1.22
 */
$wgJsMimeType = null;

/**
 * The default xmlns attribute. The option to define this has been removed.
 * The value of this variable is no longer used by core and is set to a fixed
 * value in Setup.php for compatibility with extensions that depend on the value
 * of this variable being set. Such a dependency however is deprecated.
 * @deprecated since 1.22
 */
$wgXhtmlDefaultNamespace = null;

/**
 * Previously used to determine if we should output an HTML5 doctype.
 * This is no longer used as we always output HTML5 now. For compatibility with
 * extensions that still check the value of this config it's value is now forced
 * to true by Setup.php.
 * @deprecated since 1.22
 */
$wgHtml5 = true;

/**
 * Defines the value of the version attribute in the &lt;html&gt; tag, if any.
 *
 * If your wiki uses RDFa, set it to the correct value for RDFa+HTML5.
 * Correct current values are 'HTML+RDFa 1.0' or 'XHTML+RDFa 1.0'.
 * See also https://www.w3.org/TR/rdfa-in-html/#document-conformance
 * @since 1.16
 */
$wgHtml5Version = null;

/**
 * Temporary variable that allows HTMLForms to be rendered as tables.
 * Table based layouts cause various issues when designing for mobile.
 * This global allows skins or extensions a means to force non-table based rendering.
 * Setting to false forces form components to always render as div elements.
 * @since 1.24
 */
$wgHTMLFormAllowTableFormat = true;

/**
 * Temporary variable that applies MediaWiki UI wherever it can be supported.
 * Temporary variable that should be removed when mediawiki ui is more
 * stable and change has been communicated.
 * @since 1.24
 */
$wgUseMediaWikiUIEverywhere = false;

/**
 * Whether to label the store-to-database-and-show-to-others button in the editor
 * as "Save page"/"Save changes" if false (the default) or, if true, instead as
 * "Publish page"/"Publish changes".
 *
 * @since 1.28
 */
$wgEditSubmitButtonLabelPublish = false;

/**
 * Permit other namespaces in addition to the w3.org default.
 *
 * Use the prefix for the key and the namespace for the value.
 *
 * @par Example:
 * @code
 * $wgXhtmlNamespaces['svg'] = 'http://www.w3.org/2000/svg';
 * @endcode
 * Normally we wouldn't have to define this in the root "<html>"
 * element, but IE needs it there in some circumstances.
 *
 * This is ignored if $wgMimeType is set to a non-XML MIME type.
 */
$wgXhtmlNamespaces = [];

/**
 * Site notice shown at the top of each page
 *
 * MediaWiki:Sitenotice page, which will override this. You can also
 * provide a separate message for logged-out users using the
 * MediaWiki:Anonnotice page.
 */
$wgSiteNotice = '';

/**
 * Default skin, for new users and anonymous visitors. Registered users may
 * change this to any one of the other available skins in their preferences.
 */
$wgDefaultSkin = 'vector';

/**
 * Fallback skin used when the skin defined by $wgDefaultSkin can't be found.
 *
 * @since 1.24
 */
$wgFallbackSkin = 'fallback';

/**
 * Specify the names of skins that should not be presented in the list of
 * available skins in user preferences. If you want to remove a skin entirely,
 * remove it from the skins/ directory and its entry from LocalSettings.php.
 */
$wgSkipSkins = [];

/**
 * @deprecated since 1.23; use $wgSkipSkins instead
 */
$wgSkipSkin = '';

/**
 * Allow user Javascript page?
 * This enables a lot of neat customizations, but may
 * increase security risk to users and server load.
 */
$wgAllowUserJs = false;

/**
 * Allow user Cascading Style Sheets (CSS)?
 * This enables a lot of neat customizations, but may
 * increase security risk to users and server load.
 */
$wgAllowUserCss = false;

/**
 * Allow style-related user-preferences?
 *
 * This controls whether the `editfont` and `underline` preferences
 * are available to users.
 */
$wgAllowUserCssPrefs = true;

/**
 * Use the site's Javascript page?
 */
$wgUseSiteJs = true;

/**
 * Use the site's Cascading Style Sheets (CSS)?
 */
$wgUseSiteCss = true;

/**
 * Break out of framesets. This can be used to prevent clickjacking attacks,
 * or to prevent external sites from framing your site with ads.
 */
$wgBreakFrames = false;

/**
 * The X-Frame-Options header to send on pages sensitive to clickjacking
 * attacks, such as edit pages. This prevents those pages from being displayed
 * in a frame or iframe. The options are:
 *
 *   - 'DENY': Do not allow framing. This is recommended for most wikis.
 *
 *   - 'SAMEORIGIN': Allow framing by pages on the same domain. This can be used
 *         to allow framing within a trusted domain. This is insecure if there
 *         is a page on the same domain which allows framing of arbitrary URLs.
 *
 *   - false: Allow all framing. This opens up the wiki to XSS attacks and thus
 *         full compromise of local user accounts. Private wikis behind a
 *         corporate firewall are especially vulnerable. This is not
 *         recommended.
 *
 * For extra safety, set $wgBreakFrames = true, to prevent framing on all pages,
 * not just edit pages.
 */
$wgEditPageFrameOptions = 'DENY';

/**
 * Disallow framing of API pages directly, by setting the X-Frame-Options
 * header. Since the API returns CSRF tokens, allowing the results to be
 * framed can compromise your user's account security.
 * Options are:
 *   - 'DENY': Do not allow framing. This is recommended for most wikis.
 *   - 'SAMEORIGIN': Allow framing by pages on the same domain.
 *   - false: Allow all framing.
 * Note: $wgBreakFrames will override this for human formatted API output.
 */
$wgApiFrameOptions = 'DENY';

/**
 * Disable output compression (enabled by default if zlib is available)
 */
$wgDisableOutputCompression = false;

/**
 * How should section IDs be encoded?
 * This array can contain 1 or 2 elements, each of them can be one of:
 * - 'html5'  is modern HTML5 style encoding with minimal escaping. Displays Unicode
 *            characters in most browsers' address bars.
 * - 'legacy' is old MediaWiki-style encoding, e.g. 啤酒 turns into .E5.95.A4.E9.85.92
 *
 * The first element of this array specifies the primary mode of escaping IDs. This
 * is what users will see when they e.g. follow an [[#internal link]] to a section of
 * a page.
 *
 * The optional second element defines a fallback mode, useful for migrations.
 * If present, it will direct MediaWiki to add empty <span>s to every section with its
 * id attribute set to fallback encoded title so that links using the previous encoding
 * would still work.
 *
 * Example: you want to migrate your wiki from 'legacy' to 'html5'
 *
 * On the first step, set this variable to [ 'legacy', 'html5' ]. After a while, when
 * all caches (parser, HTTP, etc.) contain only pages generated with this setting,
 * flip the value to [ 'html5', 'legacy' ]. This will result in all internal links being
 * generated in the new encoding while old links (both external and cached internal) will
 * still work. After a long time, you might want to ditch backwards compatibility and
 * set it to [ 'html5' ]. After all, pages get edited, breaking incoming links no matter which
 * fragment mode is used.
 *
 * @since 1.30
 */
$wgFragmentMode = [ 'legacy', 'html5' ];

/**
 * Which ID escaping mode should be used for external interwiki links? See documentation
 * for $wgFragmentMode above for details of each mode. Because you can't control external sites,
 * this setting should probably always be 'legacy', unless every wiki you link to has converted
 * to 'html5'.
 *
 * @since 1.30
 */
$wgExternalInterwikiFragmentMode = 'legacy';

/**
 * Abstract list of footer icons for skins in place of old copyrightico and poweredbyico code
 * You can add new icons to the built in copyright or poweredby, or you can create
 * a new block. Though note that you may need to add some custom css to get good styling
 * of new blocks in monobook. vector and modern should work without any special css.
 *
 * $wgFooterIcons itself is a key/value array.
 * The key is the name of a block that the icons will be wrapped in. The final id varies
 * by skin; Monobook and Vector will turn poweredby into f-poweredbyico while Modern
 * turns it into mw_poweredby.
 * The value is either key/value array of icons or a string.
 * In the key/value array the key may or may not be used by the skin but it can
 * be used to find the icon and unset it or change the icon if needed.
 * This is useful for disabling icons that are set by extensions.
 * The value should be either a string or an array. If it is a string it will be output
 * directly as html, however some skins may choose to ignore it. An array is the preferred format
 * for the icon, the following keys are used:
 * - src: An absolute url to the image to use for the icon, this is recommended
 *        but not required, however some skins will ignore icons without an image
 * - srcset: optional additional-resolution images; see HTML5 specs
 * - url: The url to use in the a element around the text or icon, if not set an a element will
 *        not be outputted
 * - alt: This is the text form of the icon, it will be displayed without an image in
 *        skins like Modern or if src is not set, and will otherwise be used as
 *        the alt="" for the image. This key is required.
 * - width and height: If the icon specified by src is not of the standard size
 *                     you can specify the size of image to use with these keys.
 *                     Otherwise they will default to the standard 88x31.
 * @todo Reformat documentation.
 */
$wgFooterIcons = [
        "copyright" => [
                "copyright" => [], // placeholder for the built in copyright icon
        ],
        "poweredby" => [
                "mediawiki" => [
                        // Defaults to point at
                        // "$wgResourceBasePath/resources/assets/poweredby_mediawiki_88x31.png"
                        // plus srcset for 1.5x, 2x resolution variants.
                        "src" => null,
                        "url" => "https://www.mediawiki.org/",
                        "alt" => "Powered by MediaWiki",
                ]
        ],
];

/**
 * Login / create account link behavior when it's possible for anonymous users
 * to create an account.
 *  - true = use a combined login / create account link
 *  - false = split login and create account into two separate links
 */
$wgUseCombinedLoginLink = false;

/**
 * Display user edit counts in various prominent places.
 */
$wgEdititis = false;

/**
 * Some web hosts attempt to rewrite all responses with a 404 (not found)
 * status code, mangling or hiding MediaWiki's output. If you are using such a
 * host, you should start looking for a better one. While you're doing that,
 * set this to false to convert some of MediaWiki's 404 responses to 200 so
 * that the generated error pages can be seen.
 *
 * In cases where for technical reasons it is more important for MediaWiki to
 * send the correct status code than for the body to be transmitted intact,
 * this configuration variable is ignored.
 */
$wgSend404Code = true;

/**
 * The $wgShowRollbackEditCount variable is used to show how many edits can be rolled back.
 * The numeric value of the variable controls how many edits MediaWiki will look back to
 * determine whether a rollback is allowed (by checking that they are all from the same author).
 * If the value is false or 0, the edits are not counted. Disabling this will prevent MediaWiki
 * from hiding some useless rollback links.
 *
 * @since 1.20
 */
$wgShowRollbackEditCount = 10;

/**
 * Output a <link rel="canonical"> tag on every page indicating the canonical
 * server which should be used, i.e. $wgServer or $wgCanonicalServer. Since
 * detection of the current server is unreliable, the link is sent
 * unconditionally.
 */
$wgEnableCanonicalServerLink = false;

/**