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+<?php
+/**
+ * A few constants that might be needed during LocalSettings.php.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+require_once __DIR__ . '/libs/mime/defines.php';
+require_once __DIR__ . '/libs/rdbms/defines.php';
+require_once __DIR__ . '/compat/normal/UtfNormalDefines.php';
+
+use Wikimedia\Rdbms\IDatabase;
+
+/**
+ * @defgroup Constants MediaWiki constants
+ */
+
+# Obsolete aliases
+/**
+ * @deprecated since 1.28
+ */
+define( 'DB_SLAVE', -1 );
+
+/**@{
+ * Obsolete IDatabase::makeList() constants
+ * These are also available as Database class constants
+ */
+define( 'LIST_COMMA', IDatabase::LIST_COMMA );
+define( 'LIST_AND', IDatabase::LIST_AND );
+define( 'LIST_SET', IDatabase::LIST_SET );
+define( 'LIST_NAMES', IDatabase::LIST_NAMES );
+define( 'LIST_OR', IDatabase::LIST_OR );
+/**@}*/
+
+/**@{
+ * Virtual namespaces; don't appear in the page database
+ */
+define( 'NS_MEDIA', -2 );
+define( 'NS_SPECIAL', -1 );
+/**@}*/
+
+/**@{
+ * Real namespaces
+ *
+ * Number 100 and beyond are reserved for custom namespaces;
+ * DO NOT assign standard namespaces at 100 or beyond.
+ * DO NOT Change integer values as they are most probably hardcoded everywhere
+ * see bug #696 which talked about that.
+ */
+define( 'NS_MAIN', 0 );
+define( 'NS_TALK', 1 );
+define( 'NS_USER', 2 );
+define( 'NS_USER_TALK', 3 );
+define( 'NS_PROJECT', 4 );
+define( 'NS_PROJECT_TALK', 5 );
+define( 'NS_FILE', 6 );
+define( 'NS_FILE_TALK', 7 );
+define( 'NS_MEDIAWIKI', 8 );
+define( 'NS_MEDIAWIKI_TALK', 9 );
+define( 'NS_TEMPLATE', 10 );
+define( 'NS_TEMPLATE_TALK', 11 );
+define( 'NS_HELP', 12 );
+define( 'NS_HELP_TALK', 13 );
+define( 'NS_CATEGORY', 14 );
+define( 'NS_CATEGORY_TALK', 15 );
+
+/**
+ * NS_IMAGE and NS_IMAGE_TALK are the pre-v1.14 names for NS_FILE and
+ * NS_FILE_TALK respectively, and are kept for compatibility.
+ *
+ * When writing code that should be compatible with older MediaWiki
+ * versions, either stick to the old names or define the new constants
+ * yourself, if they're not defined already.
+ *
+ * @deprecated since 1.14
+ */
+define( 'NS_IMAGE', NS_FILE );
+/**
+ * @deprecated since 1.14
+ */
+define( 'NS_IMAGE_TALK', NS_FILE_TALK );
+/**@}*/
+
+/**@{
+ * Cache type
+ */
+define( 'CACHE_ANYTHING', -1 );  // Use anything, as long as it works
+define( 'CACHE_NONE', 0 );       // Do not cache
+define( 'CACHE_DB', 1 );         // Store cache objects in the DB
+define( 'CACHE_MEMCACHED', 2 );  // MemCached, must specify servers in $wgMemCacheServers
+define( 'CACHE_ACCEL', 3 );      // APC or WinCache
+/**@}*/
+
+/**@{
+ * Antivirus result codes, for use in $wgAntivirusSetup.
+ */
+define( 'AV_NO_VIRUS', 0 );  # scan ok, no virus found
+define( 'AV_VIRUS_FOUND', 1 );  # virus found!
+define( 'AV_SCAN_ABORTED', -1 );  # scan aborted, the file is probably immune
+define( 'AV_SCAN_FAILED', false );  # scan failed (scanner not found or error in scanner)
+/**@}*/
+
+/**@{
+ * Anti-lock flags
+ * Was used by $wgAntiLockFlags, which was removed with 1.25
+ * Constants kept to not have warnings when used in LocalSettings
+ */
+define( 'ALF_PRELOAD_LINKS', 1 ); // unused
+define( 'ALF_PRELOAD_EXISTENCE', 2 ); // unused
+define( 'ALF_NO_LINK_LOCK', 4 ); // unused
+define( 'ALF_NO_BLOCK_LOCK', 8 ); // unused
+/**@}*/
+
+/**@{
+ * Date format selectors; used in user preference storage and by
+ * Language::date() and co.
+ */
+define( 'MW_DATE_DEFAULT', 'default' );
+define( 'MW_DATE_MDY', 'mdy' );
+define( 'MW_DATE_DMY', 'dmy' );
+define( 'MW_DATE_YMD', 'ymd' );
+define( 'MW_DATE_ISO', 'ISO 8601' );
+/**@}*/
+
+/**@{
+ * RecentChange type identifiers
+ */
+define( 'RC_EDIT', 0 );
+define( 'RC_NEW', 1 );
+define( 'RC_LOG', 3 );
+define( 'RC_EXTERNAL', 5 );
+define( 'RC_CATEGORIZE', 6 );
+/**@}*/
+
+/**@{
+ * Article edit flags
+ */
+define( 'EDIT_NEW', 1 );
+define( 'EDIT_UPDATE', 2 );
+define( 'EDIT_MINOR', 4 );
+define( 'EDIT_SUPPRESS_RC', 8 );
+define( 'EDIT_FORCE_BOT', 16 );
+define( 'EDIT_DEFER_UPDATES', 32 ); // Unused since 1.27
+define( 'EDIT_AUTOSUMMARY', 64 );
+define( 'EDIT_INTERNAL', 128 );
+/**@}*/
+
+/**@{
+ * Hook support constants
+ */
+define( 'MW_SUPPORTS_PARSERFIRSTCALLINIT', 1 );
+define( 'MW_SUPPORTS_LOCALISATIONCACHE', 1 );
+define( 'MW_SUPPORTS_CONTENTHANDLER', 1 );
+define( 'MW_EDITFILTERMERGED_SUPPORTS_API', 1 );
+/**@}*/
+
+/** Support for $wgResourceModules */
+define( 'MW_SUPPORTS_RESOURCE_MODULES', 1 );
+
+/**@{
+ * Allowed values for Parser::$mOutputType
+ * Parameter to Parser::startExternalParse().
+ * Use of Parser consts is preferred:
+ * - Parser::OT_HTML
+ * - Parser::OT_WIKI
+ * - Parser::OT_PREPROCESS
+ * - Parser::OT_MSG
+ * - Parser::OT_PLAIN
+ */
+define( 'OT_HTML', 1 );
+define( 'OT_WIKI', 2 );
+define( 'OT_PREPROCESS', 3 );
+define( 'OT_MSG', 3 );  // b/c alias for OT_PREPROCESS
+define( 'OT_PLAIN', 4 );
+/**@}*/
+
+/**@{
+ * Flags for Parser::setFunctionHook
+ * Use of Parser consts is preferred:
+ * - Parser::SFH_NO_HASH
+ * - Parser::SFH_OBJECT_ARGS
+ */
+define( 'SFH_NO_HASH', 1 );
+define( 'SFH_OBJECT_ARGS', 2 );
+/**@}*/
+
+/**@{
+ * Autopromote conditions (must be here and not in Autopromote.php, so that
+ * they're loaded for DefaultSettings.php before AutoLoader.php)
+ */
+define( 'APCOND_EDITCOUNT', 1 );
+define( 'APCOND_AGE', 2 );
+define( 'APCOND_EMAILCONFIRMED', 3 );
+define( 'APCOND_INGROUPS', 4 );
+define( 'APCOND_ISIP', 5 );
+define( 'APCOND_IPINRANGE', 6 );
+define( 'APCOND_AGE_FROM_EDIT', 7 );
+define( 'APCOND_BLOCKED', 8 );
+define( 'APCOND_ISBOT', 9 );
+/**@}*/
+
+/** @{
+ * Protocol constants for wfExpandUrl()
+ */
+define( 'PROTO_HTTP', 'http://' );
+define( 'PROTO_HTTPS', 'https://' );
+define( 'PROTO_RELATIVE', '//' );
+define( 'PROTO_CURRENT', null );
+define( 'PROTO_CANONICAL', 1 );
+define( 'PROTO_INTERNAL', 2 );
+/**@}*/
+
+/**@{
+ * Content model ids, used by Content and ContentHandler.
+ * These IDs will be exposed in the API and XML dumps.
+ *
+ * Extensions that define their own content model IDs should take
+ * care to avoid conflicts. Using the extension name as a prefix is recommended,
+ * for example 'myextension-somecontent'.
+ */
+define( 'CONTENT_MODEL_WIKITEXT', 'wikitext' );
+define( 'CONTENT_MODEL_JAVASCRIPT', 'javascript' );
+define( 'CONTENT_MODEL_CSS', 'css' );
+define( 'CONTENT_MODEL_TEXT', 'text' );
+define( 'CONTENT_MODEL_JSON', 'json' );
+/**@}*/
+
+/**@{
+ * Content formats, used by Content and ContentHandler.
+ * These should be MIME types, and will be exposed in the API and XML dumps.
+ *
+ * Extensions are free to use the below formats, or define their own.
+ * It is recommended to stick with the conventions for MIME types.
+ */
+// wikitext
+define( 'CONTENT_FORMAT_WIKITEXT', 'text/x-wiki' );
+// for js pages
+define( 'CONTENT_FORMAT_JAVASCRIPT', 'text/javascript' );
+// for css pages
+define( 'CONTENT_FORMAT_CSS', 'text/css' );
+// for future use, e.g. with some plain-html messages.
+define( 'CONTENT_FORMAT_TEXT', 'text/plain' );
+// for future use, e.g. with some plain-html messages.
+define( 'CONTENT_FORMAT_HTML', 'text/html' );
+// for future use with the api and for extensions
+define( 'CONTENT_FORMAT_SERIALIZED', 'application/vnd.php.serialized' );
+// for future use with the api, and for use by extensions
+define( 'CONTENT_FORMAT_JSON', 'application/json' );
+// for future use with the api, and for use by extensions
+define( 'CONTENT_FORMAT_XML', 'application/xml' );
+/**@}*/
+
+/**@{
+ * Max string length for shell invocations; based on binfmts.h
+ */
+define( 'SHELL_MAX_ARG_STRLEN', '100000' );
+/**@}*/
+
+/**@{
+ * Schema change migration flags.
+ *
+ * Used as values of a feature flag for an orderly transition from an old
+ * schema to a new schema.
+ *
+ * - MIGRATION_OLD: Only read and write the old schema. The new schema need not
+ *   even exist. This is used from when the patch is merged until the schema
+ *   change is actually applied to the database.
+ * - MIGRATION_WRITE_BOTH: Write both the old and new schema. Read the new
+ *   schema preferentially, falling back to the old. This is used while the
+ *   change is being tested, allowing easy roll-back to the old schema.
+ * - MIGRATION_WRITE_NEW: Write only the new schema. Read the new schema
+ *   preferentially, falling back to the old. This is used while running the
+ *   maintenance script to migrate existing entries in the old schema to the
+ *   new schema.
+ * - MIGRATION_NEW: Only read and write the new schema. The old schema (and the
+ *   feature flag) may now be removed.
+ */
+define( 'MIGRATION_OLD', 0 );
+define( 'MIGRATION_WRITE_BOTH', 1 );
+define( 'MIGRATION_WRITE_NEW', 2 );
+define( 'MIGRATION_NEW', 3 );
+/**@}*/