-<?php
-/**
- * Fetching and processing of interface messages.
- *
- * 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
- * @author Niklas Laxström
- */
-use MediaWiki\MediaWikiServices;
-
-/**
- * The Message class provides methods which fulfil two basic services:
- * - fetching interface messages
- * - processing messages into a variety of formats
- *
- * First implemented with MediaWiki 1.17, the Message class is intended to
- * replace the old wfMsg* functions that over time grew unusable.
- * @see https://www.mediawiki.org/wiki/Manual:Messages_API for equivalences
- * between old and new functions.
- *
- * You should use the wfMessage() global function which acts as a wrapper for
- * the Message class. The wrapper let you pass parameters as arguments.
- *
- * The most basic usage cases would be:
- *
- * @code
- * // Initialize a Message object using the 'some_key' message key
- * $message = wfMessage( 'some_key' );
- *
- * // Using two parameters those values are strings 'value1' and 'value2':
- * $message = wfMessage( 'some_key',
- * 'value1', 'value2'
- * );
- * @endcode
- *
- * @section message_global_fn Global function wrapper:
- *
- * Since wfMessage() returns a Message instance, you can chain its call with
- * a method. Some of them return a Message instance too so you can chain them.
- * You will find below several examples of wfMessage() usage.
- *
- * Fetching a message text for interface message:
- *
- * @code
- * $button = Xml::button(
- * wfMessage( 'submit' )->text()
- * );
- * @endcode
- *
- * A Message instance can be passed parameters after it has been constructed,
- * use the params() method to do so:
- *
- * @code
- * wfMessage( 'welcome-to' )
- * ->params( $wgSitename )
- * ->text();
- * @endcode
- *
- * {{GRAMMAR}} and friends work correctly:
- *
- * @code
- * wfMessage( 'are-friends',
- * $user, $friend
- * );
- * wfMessage( 'bad-message' )
- * ->rawParams( '<script>...</script>' )
- * ->escaped();
- * @endcode
- *
- * @section message_language Changing language:
- *
- * Messages can be requested in a different language or in whatever current
- * content language is being used. The methods are:
- * - Message->inContentLanguage()
- * - Message->inLanguage()
- *
- * Sometimes the message text ends up in the database, so content language is
- * needed:
- *
- * @code
- * wfMessage( 'file-log',
- * $user, $filename
- * )->inContentLanguage()->text();
- * @endcode
- *
- * Checking whether a message exists:
- *
- * @code
- * wfMessage( 'mysterious-message' )->exists()
- * // returns a boolean whether the 'mysterious-message' key exist.
- * @endcode
- *
- * If you want to use a different language:
- *
- * @code
- * $userLanguage = $user->getOption( 'language' );
- * wfMessage( 'email-header' )
- * ->inLanguage( $userLanguage )
- * ->plain();
- * @endcode
- *
- * @note You can parse the text only in the content or interface languages
- *
- * @section message_compare_old Comparison with old wfMsg* functions:
- *
- * Use full parsing:
- *
- * @code
- * // old style:
- * wfMsgExt( 'key', [ 'parseinline' ], 'apple' );
- * // new style:
- * wfMessage( 'key', 'apple' )->parse();
- * @endcode
- *
- * Parseinline is used because it is more useful when pre-building HTML.
- * In normal use it is better to use OutputPage::(add|wrap)WikiMsg.
- *
- * Places where HTML cannot be used. {{-transformation is done.
- * @code
- * // old style:
- * wfMsgExt( 'key', [ 'parsemag' ], 'apple', 'pear' );
- * // new style:
- * wfMessage( 'key', 'apple', 'pear' )->text();
- * @endcode
- *
- * Shortcut for escaping the message too, similar to wfMsgHTML(), but
- * parameters are not replaced after escaping by default.
- * @code
- * $escaped = wfMessage( 'key' )
- * ->rawParams( 'apple' )
- * ->escaped();
- * @endcode
- *
- * @section message_appendix Appendix:
- *
- * @todo
- * - test, can we have tests?
- * - this documentation needs to be extended
- *
- * @see https://www.mediawiki.org/wiki/WfMessage()
- * @see https://www.mediawiki.org/wiki/New_messages_API
- * @see https://www.mediawiki.org/wiki/Localisation
- *
- * @since 1.17
- */
-class Message implements MessageSpecifier, Serializable {
- /** Use message text as-is */
- const FORMAT_PLAIN = 'plain';
- /** Use normal wikitext -> HTML parsing (the result will be wrapped in a block-level HTML tag) */
- const FORMAT_BLOCK_PARSE = 'block-parse';
- /** Use normal wikitext -> HTML parsing but strip the block-level wrapper */
- const FORMAT_PARSE = 'parse';
- /** Transform {{..}} constructs but don't transform to HTML */
- const FORMAT_TEXT = 'text';
- /** Transform {{..}} constructs, HTML-escape the result */
- const FORMAT_ESCAPED = 'escaped';
-
- /**
- * Mapping from Message::listParam() types to Language methods.
- * @var array
- */
- protected static $listTypeMap = [
- 'comma' => 'commaList',
- 'semicolon' => 'semicolonList',
- 'pipe' => 'pipeList',
- 'text' => 'listToText',
- ];
-
- /**
- * In which language to get this message. True, which is the default,
- * means the current user language, false content language.
- *
- * @var bool
- */
- protected $interface = true;
-
- /**
- * In which language to get this message. Overrides the $interface setting.
- *
- * @var Language|bool Explicit language object, or false for user language
- */
- protected $language = false;
-
- /**
- * @var string The message key. If $keysToTry has more than one element,
- * this may change to one of the keys to try when fetching the message text.
- */
- protected $key;
-
- /**
- * @var string[] List of keys to try when fetching the message.
- */
- protected $keysToTry;
-
- /**
- * @var array List of parameters which will be substituted into the message.
- */
- protected $parameters = [];
-
- /**
- * @var string
- * @deprecated
- */
- protected $format = 'parse';
-
- /**
- * @var bool Whether database can be used.
- */
- protected $useDatabase = true;
-
- /**
- * @var Title Title object to use as context.
- */
- protected $title = null;
-
- /**
- * @var Content Content object representing the message.
- */
- protected $content = null;
-
- /**
- * @var string
- */
- protected $message;
-
- /**
- * @since 1.17
- * @param string|string[]|MessageSpecifier $key Message key, or array of
- * message keys to try and use the first non-empty message for, or a
- * MessageSpecifier to copy from.
- * @param array $params Message parameters.
- * @param Language|null $language [optional] Language to use (defaults to current user language).
- * @throws InvalidArgumentException
- */
- public function __construct( $key, $params = [], Language $language = null ) {
- if ( $key instanceof MessageSpecifier ) {
- if ( $params ) {
- throw new InvalidArgumentException(
- '$params must be empty if $key is a MessageSpecifier'
- );
- }
- $params = $key->getParams();
- $key = $key->getKey();
- }
-
- if ( !is_string( $key ) && !is_array( $key ) ) {
- throw new InvalidArgumentException( '$key must be a string or an array' );
- }
-
- $this->keysToTry = (array)$key;
-
- if ( empty( $this->keysToTry ) ) {
- throw new InvalidArgumentException( '$key must not be an empty list' );
- }
-
- $this->key = reset( $this->keysToTry );
-
- $this->parameters = array_values( $params );
- // User language is only resolved in getLanguage(). This helps preserve the
- // semantic intent of "user language" across serialize() and unserialize().
- $this->language = $language ?: false;
- }
-
- /**
- * @see Serializable::serialize()
- * @since 1.26
- * @return string
- */
- public function serialize() {
- return serialize( [
- 'interface' => $this->interface,
- 'language' => $this->language ? $this->language->getCode() : false,
- 'key' => $this->key,
- 'keysToTry' => $this->keysToTry,
- 'parameters' => $this->parameters,
- 'format' => $this->format,
- 'useDatabase' => $this->useDatabase,
- 'titlestr' => $this->title ? $this->title->getFullText() : null,
- ] );
- }
-
- /**
- * @see Serializable::unserialize()
- * @since 1.26
- * @param string $serialized
- */
- public function unserialize( $serialized ) {
- $data = unserialize( $serialized );
- if ( !is_array( $data ) ) {
- throw new InvalidArgumentException( __METHOD__ . ': Invalid serialized data' );
- }
-
- $this->interface = $data['interface'];
- $this->key = $data['key'];
- $this->keysToTry = $data['keysToTry'];
- $this->parameters = $data['parameters'];
- $this->format = $data['format'];
- $this->useDatabase = $data['useDatabase'];
- $this->language = $data['language'] ? Language::factory( $data['language'] ) : false;
-
- if ( isset( $data['titlestr'] ) ) {
- $this->title = Title::newFromText( $data['titlestr'] );
- } elseif ( isset( $data['title'] ) && $data['title'] instanceof Title ) {
- // Old serializations from before December 2018
- $this->title = $data['title'];
- } else {
- $this->title = null; // Explicit for sanity
- }
- }
-
- /**
- * @since 1.24
- *
- * @return bool True if this is a multi-key message, that is, if the key provided to the
- * constructor was a fallback list of keys to try.
- */
- public function isMultiKey() {
- return count( $this->keysToTry ) > 1;
- }
-
- /**
- * @since 1.24
- *
- * @return string[] The list of keys to try when fetching the message text,
- * in order of preference.
- */
- public function getKeysToTry() {
- return $this->keysToTry;
- }
-
- /**
- * Returns the message key.
- *
- * If a list of multiple possible keys was supplied to the constructor, this method may
- * return any of these keys. After the message has been fetched, this method will return
- * the key that was actually used to fetch the message.
- *
- * @since 1.21
- *
- * @return string
- */
- public function getKey() {
- return $this->key;
- }
-
- /**
- * Returns the message parameters.
- *
- * @since 1.21
- *
- * @return array
- */
- public function getParams() {
- return $this->parameters;
- }
-
- /**
- * Returns the message format.
- *
- * @since 1.21
- *
- * @return string
- * @deprecated since 1.29 formatting is not stateful
- */
- public function getFormat() {
- wfDeprecated( __METHOD__, '1.29' );
- return $this->format;
- }
-
- /**
- * Returns the Language of the Message.
- *
- * @since 1.23
- *
- * @return Language
- */
- public function getLanguage() {
- // Defaults to false which means current user language
- return $this->language ?: RequestContext::getMain()->getLanguage();
- }
-
- /**
- * Factory function that is just wrapper for the real constructor. It is
- * intended to be used instead of the real constructor, because it allows
- * chaining method calls, while new objects don't.
- *
- * @since 1.17
- *
- * @param string|string[]|MessageSpecifier $key
- * @param mixed $param,... Parameters as strings.
- *
- * @return Message
- */
- public static function newFromKey( $key /*...*/ ) {
- $params = func_get_args();
- array_shift( $params );
- return new self( $key, $params );
- }
-
- /**
- * Transform a MessageSpecifier or a primitive value used interchangeably with
- * specifiers (a message key string, or a key + params array) into a proper Message.
- *
- * Also accepts a MessageSpecifier inside an array: that's not considered a valid format
- * but is an easy error to make due to how StatusValue stores messages internally.
- * Further array elements are ignored in that case.
- *
- * @param string|array|MessageSpecifier $value
- * @return Message
- * @throws InvalidArgumentException
- * @since 1.27
- */
- public static function newFromSpecifier( $value ) {
- $params = [];
- if ( is_array( $value ) ) {
- $params = $value;
- $value = array_shift( $params );
- }
-
- if ( $value instanceof Message ) { // Message, RawMessage, ApiMessage, etc
- $message = clone $value;
- } elseif ( $value instanceof MessageSpecifier ) {
- $message = new Message( $value );
- } elseif ( is_string( $value ) ) {
- $message = new Message( $value, $params );
- } else {
- throw new InvalidArgumentException( __METHOD__ . ': invalid argument type '
- . gettype( $value ) );
- }
-
- return $message;
- }
-
- /**
- * Factory function accepting multiple message keys and returning a message instance
- * for the first message which is non-empty. If all messages are empty then an
- * instance of the first message key is returned.
- *
- * @since 1.18
- *
- * @param string|string[] $keys,... Message keys, or first argument as an array of all the
- * message keys.
- *
- * @return Message
- */
- public static function newFallbackSequence( /*...*/ ) {
- $keys = func_get_args();
- if ( func_num_args() == 1 ) {
- if ( is_array( $keys[0] ) ) {
- // Allow an array to be passed as the first argument instead
- $keys = array_values( $keys[0] );
- } else {
- // Optimize a single string to not need special fallback handling
- $keys = $keys[0];
- }
- }
- return new self( $keys );
- }
-
- /**
- * Get a title object for a mediawiki message, where it can be found in the mediawiki namespace.
- * The title will be for the current language, if the message key is in
- * $wgForceUIMsgAsContentMsg it will be append with the language code (except content
- * language), because Message::inContentLanguage will also return in user language.
- *
- * @see $wgForceUIMsgAsContentMsg
- * @return Title
- * @since 1.26
- */
- public function getTitle() {
- global $wgForceUIMsgAsContentMsg;
-
- $contLang = MediaWikiServices::getInstance()->getContentLanguage();
- $lang = $this->getLanguage();
- $title = $this->key;
- if (
- !$lang->equals( $contLang )
- && in_array( $this->key, (array)$wgForceUIMsgAsContentMsg )
- ) {
- $title .= '/' . $lang->getCode();
- }
-
- return Title::makeTitle(
- NS_MEDIAWIKI, $contLang->ucfirst( strtr( $title, ' ', '_' ) ) );
- }
-
- /**
- * Adds parameters to the parameter list of this message.
- *
- * @since 1.17
- *
- * @param mixed $args,... Parameters as strings or arrays from
- * Message::numParam() and the like, or a single array of parameters.
- *
- * @return Message $this
- */
- public function params( /*...*/ ) {
- $args = func_get_args();
-
- // If $args has only one entry and it's an array, then it's either a
- // non-varargs call or it happens to be a call with just a single
- // "special" parameter. Since the "special" parameters don't have any
- // numeric keys, we'll test that to differentiate the cases.
- if ( count( $args ) === 1 && isset( $args[0] ) && is_array( $args[0] ) ) {
- if ( $args[0] === [] ) {
- $args = [];
- } else {
- foreach ( $args[0] as $key => $value ) {
- if ( is_int( $key ) ) {
- $args = $args[0];
- break;
- }
- }
- }
- }
-
- $this->parameters = array_merge( $this->parameters, array_values( $args ) );
- return $this;
- }
-
- /**
- * Add parameters that are substituted after parsing or escaping.
- * In other words the parsing process cannot access the contents
- * of this type of parameter, and you need to make sure it is
- * sanitized beforehand. The parser will see "$n", instead.
- *
- * @since 1.17
- *
- * @param mixed $params,... Raw parameters as strings, or a single argument that is
- * an array of raw parameters.
- *
- * @return Message $this
- */
- public function rawParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::rawParam( $param );
- }
- return $this;
- }
-
- /**
- * Add parameters that are numeric and will be passed through
- * Language::formatNum before substitution
- *
- * @since 1.18
- *
- * @param mixed $param,... Numeric parameters, or a single argument that is
- * an array of numeric parameters.
- *
- * @return Message $this
- */
- public function numParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::numParam( $param );
- }
- return $this;
- }
-
- /**
- * Add parameters that are durations of time and will be passed through
- * Language::formatDuration before substitution
- *
- * @since 1.22
- *
- * @param int|int[] $param,... Duration parameters, or a single argument that is
- * an array of duration parameters.
- *
- * @return Message $this
- */
- public function durationParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::durationParam( $param );
- }
- return $this;
- }
-
- /**
- * Add parameters that are expiration times and will be passed through
- * Language::formatExpiry before substitution
- *
- * @since 1.22
- *
- * @param string|string[] $param,... Expiry parameters, or a single argument that is
- * an array of expiry parameters.
- *
- * @return Message $this
- */
- public function expiryParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::expiryParam( $param );
- }
- return $this;
- }
-
- /**
- * Add parameters that are time periods and will be passed through
- * Language::formatTimePeriod before substitution
- *
- * @since 1.22
- *
- * @param int|int[] $param,... Time period parameters, or a single argument that is
- * an array of time period parameters.
- *
- * @return Message $this
- */
- public function timeperiodParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::timeperiodParam( $param );
- }
- return $this;
- }
-
- /**
- * Add parameters that are file sizes and will be passed through
- * Language::formatSize before substitution
- *
- * @since 1.22
- *
- * @param int|int[] $param,... Size parameters, or a single argument that is
- * an array of size parameters.
- *
- * @return Message $this
- */
- public function sizeParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::sizeParam( $param );
- }
- return $this;
- }
-
- /**
- * Add parameters that are bitrates and will be passed through
- * Language::formatBitrate before substitution
- *
- * @since 1.22
- *
- * @param int|int[] $param,... Bit rate parameters, or a single argument that is
- * an array of bit rate parameters.
- *
- * @return Message $this
- */
- public function bitrateParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::bitrateParam( $param );
- }
- return $this;
- }
-
- /**
- * Add parameters that are plaintext and will be passed through without
- * the content being evaluated. Plaintext parameters are not valid as
- * arguments to parser functions. This differs from self::rawParams in
- * that the Message class handles escaping to match the output format.
- *
- * @since 1.25
- *
- * @param string|string[] $param,... plaintext parameters, or a single argument that is
- * an array of plaintext parameters.
- *
- * @return Message $this
- */
- public function plaintextParams( /*...*/ ) {
- $params = func_get_args();
- if ( isset( $params[0] ) && is_array( $params[0] ) ) {
- $params = $params[0];
- }
- foreach ( $params as $param ) {
- $this->parameters[] = self::plaintextParam( $param );
- }
- return $this;
- }
-
- /**
- * Set the language and the title from a context object
- *
- * @since 1.19
- *
- * @param IContextSource $context
- *
- * @return Message $this
- */
- public function setContext( IContextSource $context ) {
- $this->inLanguage( $context->getLanguage() );
- $this->title( $context->getTitle() );
- $this->interface = true;
-
- return $this;
- }
-
- /**
- * Request the message in any language that is supported.
- *
- * As a side effect interface message status is unconditionally
- * turned off.
- *
- * @since 1.17
- * @param Language|string $lang Language code or Language object.
- * @return Message $this
- * @throws MWException
- */
- public function inLanguage( $lang ) {
- $previousLanguage = $this->language;
-
- if ( $lang instanceof Language ) {
- $this->language = $lang;
- } elseif ( is_string( $lang ) ) {
- if ( !$this->language instanceof Language || $this->language->getCode() != $lang ) {
- $this->language = Language::factory( $lang );
- }
- } elseif ( $lang instanceof StubUserLang ) {
- $this->language = false;
- } else {
- $type = gettype( $lang );
- throw new MWException( __METHOD__ . " must be "
- . "passed a String or Language object; $type given"
- );
- }
-
- if ( $this->language !== $previousLanguage ) {
- // The language has changed. Clear the message cache.
- $this->message = null;
- }
- $this->interface = false;
- return $this;
- }
-
- /**
- * Request the message in the wiki's content language,
- * unless it is disabled for this message.
- *
- * @since 1.17
- * @see $wgForceUIMsgAsContentMsg
- *
- * @return Message $this
- */
- public function inContentLanguage() {
- global $wgForceUIMsgAsContentMsg;
- if ( in_array( $this->key, (array)$wgForceUIMsgAsContentMsg ) ) {
- return $this;
- }
-
- $this->inLanguage( MediaWikiServices::getInstance()->getContentLanguage() );
- return $this;
- }
-
- /**
- * Allows manipulating the interface message flag directly.
- * Can be used to restore the flag after setting a language.
- *
- * @since 1.20
- *
- * @param bool $interface
- *
- * @return Message $this
- */
- public function setInterfaceMessageFlag( $interface ) {
- $this->interface = (bool)$interface;
- return $this;
- }
-
- /**
- * Enable or disable database use.
- *
- * @since 1.17
- *
- * @param bool $useDatabase
- *
- * @return Message $this
- */
- public function useDatabase( $useDatabase ) {
- $this->useDatabase = (bool)$useDatabase;
- $this->message = null;
- return $this;
- }
-
- /**
- * Set the Title object to use as context when transforming the message
- *
- * @since 1.18
- *
- * @param Title $title
- *
- * @return Message $this
- */
- public function title( $title ) {
- $this->title = $title;
- return $this;
- }
-
- /**
- * Returns the message as a Content object.
- *
- * @return Content
- */
- public function content() {
- if ( !$this->content ) {
- $this->content = new MessageContent( $this );
- }
-
- return $this->content;
- }
-
- /**
- * Returns the message parsed from wikitext to HTML.
- *
- * @since 1.17
- *
- * @param string|null $format One of the FORMAT_* constants. Null means use whatever was used
- * the last time (this is for B/C and should be avoided).
- *
- * @return string HTML
- * @suppress SecurityCheck-DoubleEscaped phan false positive
- */
- public function toString( $format = null ) {
- if ( $format === null ) {
- $ex = new LogicException( __METHOD__ . ' using implicit format: ' . $this->format );
- \MediaWiki\Logger\LoggerFactory::getInstance( 'message-format' )->warning(
- $ex->getMessage(), [ 'exception' => $ex, 'format' => $this->format, 'key' => $this->key ] );
- $format = $this->format;
- }
- $string = $this->fetchMessage();
-
- if ( $string === false ) {
- // Err on the side of safety, ensure that the output
- // is always html safe in the event the message key is
- // missing, since in that case its highly likely the
- // message key is user-controlled.
- // '⧼' is used instead of '<' to side-step any
- // double-escaping issues.
- // (Keep synchronised with mw.Message#toString in JS.)
- return '⧼' . htmlspecialchars( $this->key ) . '⧽';
- }
-
- # Replace $* with a list of parameters for &uselang=qqx.
- if ( strpos( $string, '$*' ) !== false ) {
- $paramlist = '';
- if ( $this->parameters !== [] ) {
- $paramlist = ': $' . implode( ', $', range( 1, count( $this->parameters ) ) );
- }
- $string = str_replace( '$*', $paramlist, $string );
- }
-
- # Replace parameters before text parsing
- $string = $this->replaceParameters( $string, 'before', $format );
-
- # Maybe transform using the full parser
- if ( $format === self::FORMAT_PARSE ) {
- $string = $this->parseText( $string );
- $string = Parser::stripOuterParagraph( $string );
- } elseif ( $format === self::FORMAT_BLOCK_PARSE ) {
- $string = $this->parseText( $string );
- } elseif ( $format === self::FORMAT_TEXT ) {
- $string = $this->transformText( $string );
- } elseif ( $format === self::FORMAT_ESCAPED ) {
- $string = $this->transformText( $string );
- $string = htmlspecialchars( $string, ENT_QUOTES, 'UTF-8', false );
- }
-
- # Raw parameter replacement
- $string = $this->replaceParameters( $string, 'after', $format );
-
- return $string;
- }
-
- /**
- * Magic method implementation of the above (for PHP >= 5.2.0), so we can do, eg:
- * $foo = new Message( $key );
- * $string = "<abbr>$foo</abbr>";
- *
- * @since 1.18
- *
- * @return string
- */
- public function __toString() {
- // PHP doesn't allow __toString to throw exceptions and will
- // trigger a fatal error if it does. So, catch any exceptions.
-
- try {
- return $this->toString( self::FORMAT_PARSE );
- } catch ( Exception $ex ) {
- try {
- trigger_error( "Exception caught in " . __METHOD__ . " (message " . $this->key . "): "
- . $ex, E_USER_WARNING );
- } catch ( Exception $ex ) {
- // Doh! Cause a fatal error after all?
- }
-
- return '⧼' . htmlspecialchars( $this->key ) . '⧽';
- }
- }
-
- /**
- * Fully parse the text from wikitext to HTML.
- *
- * @since 1.17
- *
- * @return string Parsed HTML.
- */
- public function parse() {
- $this->format = self::FORMAT_PARSE;
- return $this->toString( self::FORMAT_PARSE );
- }
-
- /**
- * Returns the message text. {{-transformation is done.
- *
- * @since 1.17
- *
- * @return string Unescaped message text.
- */
- public function text() {
- $this->format = self::FORMAT_TEXT;
- return $this->toString( self::FORMAT_TEXT );
- }
-
- /**
- * Returns the message text as-is, only parameters are substituted.
- *
- * @since 1.17
- *
- * @return string Unescaped untransformed message text.
- */
- public function plain() {
- $this->format = self::FORMAT_PLAIN;
- return $this->toString( self::FORMAT_PLAIN );
- }
-
- /**
- * Returns the parsed message text which is always surrounded by a block element.
- *
- * @since 1.17
- *
- * @return string HTML
- */
- public function parseAsBlock() {
- $this->format = self::FORMAT_BLOCK_PARSE;
- return $this->toString( self::FORMAT_BLOCK_PARSE );
- }
-
- /**
- * Returns the message text. {{-transformation is done and the result
- * is escaped excluding any raw parameters.
- *
- * @since 1.17
- *
- * @return string Escaped message text.
- */
- public function escaped() {
- $this->format = self::FORMAT_ESCAPED;
- return $this->toString( self::FORMAT_ESCAPED );
- }
-
- /**
- * Check whether a message key has been defined currently.
- *
- * @since 1.17
- *
- * @return bool
- */
- public function exists() {
- return $this->fetchMessage() !== false;
- }
-
- /**
- * Check whether a message does not exist, or is an empty string
- *
- * @since 1.18
- * @todo FIXME: Merge with isDisabled()?
- *
- * @return bool
- */
- public function isBlank() {
- $message = $this->fetchMessage();
- return $message === false || $message === '';
- }
-
- /**
- * Check whether a message does not exist, is an empty string, or is "-".
- *
- * @since 1.18
- *
- * @return bool
- */
- public function isDisabled() {
- $message = $this->fetchMessage();
- return $message === false || $message === '' || $message === '-';
- }
-
- /**
- * @since 1.17
- *
- * @param mixed $raw
- *
- * @return array Array with a single "raw" key.
- */
- public static function rawParam( $raw ) {
- return [ 'raw' => $raw ];
- }
-
- /**
- * @since 1.18
- *
- * @param mixed $num
- *
- * @return array Array with a single "num" key.
- */
- public static function numParam( $num ) {
- return [ 'num' => $num ];
- }
-
- /**
- * @since 1.22
- *
- * @param int $duration
- *
- * @return int[] Array with a single "duration" key.
- */
- public static function durationParam( $duration ) {
- return [ 'duration' => $duration ];
- }
-
- /**
- * @since 1.22
- *
- * @param string $expiry
- *
- * @return string[] Array with a single "expiry" key.
- */
- public static function expiryParam( $expiry ) {
- return [ 'expiry' => $expiry ];
- }
-
- /**
- * @since 1.22
- *
- * @param int $period
- *
- * @return int[] Array with a single "period" key.
- */
- public static function timeperiodParam( $period ) {
- return [ 'period' => $period ];
- }
-
- /**
- * @since 1.22
- *
- * @param int $size
- *
- * @return int[] Array with a single "size" key.
- */
- public static function sizeParam( $size ) {
- return [ 'size' => $size ];
- }
-
- /**
- * @since 1.22
- *
- * @param int $bitrate
- *
- * @return int[] Array with a single "bitrate" key.
- */
- public static function bitrateParam( $bitrate ) {
- return [ 'bitrate' => $bitrate ];
- }
-
- /**
- * @since 1.25
- *
- * @param string $plaintext
- *
- * @return string[] Array with a single "plaintext" key.
- */
- public static function plaintextParam( $plaintext ) {
- return [ 'plaintext' => $plaintext ];
- }
-
- /**
- * @since 1.29
- *
- * @param array $list
- * @param string $type 'comma', 'semicolon', 'pipe', 'text'
- * @return array Array with "list" and "type" keys.
- */
- public static function listParam( array $list, $type = 'text' ) {
- if ( !isset( self::$listTypeMap[$type] ) ) {
- throw new InvalidArgumentException(
- "Invalid type '$type'. Known types are: " . implode( ', ', array_keys( self::$listTypeMap ) )
- );
- }
- return [ 'list' => $list, 'type' => $type ];
- }
-
- /**
- * Substitutes any parameters into the message text.
- *
- * @since 1.17
- *
- * @param string $message The message text.
- * @param string $type Either "before" or "after".
- * @param string $format One of the FORMAT_* constants.
- *
- * @return string
- */
- protected function replaceParameters( $message, $type, $format ) {
- // A temporary marker for $1 parameters that is only valid
- // in non-attribute contexts. However if the entire message is escaped
- // then we don't want to use it because it will be mangled in all contexts
- // and its unnessary as ->escaped() messages aren't html.
- $marker = $format === self::FORMAT_ESCAPED ? '$' : '$\'"';
- $replacementKeys = [];
- foreach ( $this->parameters as $n => $param ) {
- list( $paramType, $value ) = $this->extractParam( $param, $format );
- if ( $type === 'before' ) {
- if ( $paramType === 'before' ) {
- $replacementKeys['$' . ( $n + 1 )] = $value;
- } else /* $paramType === 'after' */ {
- // To protect against XSS from replacing parameters
- // inside html attributes, we convert $1 to $'"1.
- // In the event that one of the parameters ends up
- // in an attribute, either the ' or the " will be
- // escaped, breaking the replacement and avoiding XSS.
- $replacementKeys['$' . ( $n + 1 )] = $marker . ( $n + 1 );
- }
- } elseif ( $paramType === 'after' ) {
- $replacementKeys[$marker . ( $n + 1 )] = $value;
- }
- }
- return strtr( $message, $replacementKeys );
- }
-
- /**
- * Extracts the parameter type and preprocessed the value if needed.
- *
- * @since 1.18
- *
- * @param mixed $param Parameter as defined in this class.
- * @param string $format One of the FORMAT_* constants.
- *
- * @return array Array with the parameter type (either "before" or "after") and the value.
- */
- protected function extractParam( $param, $format ) {
- if ( is_array( $param ) ) {
- if ( isset( $param['raw'] ) ) {
- return [ 'after', $param['raw'] ];
- } elseif ( isset( $param['num'] ) ) {
- // Replace number params always in before step for now.
- // No support for combined raw and num params
- return [ 'before', $this->getLanguage()->formatNum( $param['num'] ) ];
- } elseif ( isset( $param['duration'] ) ) {
- return [ 'before', $this->getLanguage()->formatDuration( $param['duration'] ) ];
- } elseif ( isset( $param['expiry'] ) ) {
- return [ 'before', $this->getLanguage()->formatExpiry( $param['expiry'] ) ];
- } elseif ( isset( $param['period'] ) ) {
- return [ 'before', $this->getLanguage()->formatTimePeriod( $param['period'] ) ];
- } elseif ( isset( $param['size'] ) ) {
- return [ 'before', $this->getLanguage()->formatSize( $param['size'] ) ];
- } elseif ( isset( $param['bitrate'] ) ) {
- return [ 'before', $this->getLanguage()->formatBitrate( $param['bitrate'] ) ];
- } elseif ( isset( $param['plaintext'] ) ) {
- return [ 'after', $this->formatPlaintext( $param['plaintext'], $format ) ];
- } elseif ( isset( $param['list'] ) ) {
- return $this->formatListParam( $param['list'], $param['type'], $format );
- } else {
- if ( !is_scalar( $param ) ) {
- $param = serialize( $param );
- }
- \MediaWiki\Logger\LoggerFactory::getInstance( 'Bug58676' )->warning(
- 'Invalid parameter for message "{msgkey}": {param}',
- [
- 'exception' => new Exception,
- 'msgkey' => $this->getKey(),
- 'param' => htmlspecialchars( $param ),
- ]
- );
-
- return [ 'before', '[INVALID]' ];
- }
- } elseif ( $param instanceof Message ) {
- // Match language, flags, etc. to the current message.
- $msg = clone $param;
- if ( $msg->language !== $this->language || $msg->useDatabase !== $this->useDatabase ) {
- // Cache depends on these parameters
- $msg->message = null;
- }
- $msg->interface = $this->interface;
- $msg->language = $this->language;
- $msg->useDatabase = $this->useDatabase;
- $msg->title = $this->title;
-
- // DWIM
- if ( $format === 'block-parse' ) {
- $format = 'parse';
- }
- $msg->format = $format;
-
- // Message objects should not be before parameters because
- // then they'll get double escaped. If the message needs to be
- // escaped, it'll happen right here when we call toString().
- return [ 'after', $msg->toString( $format ) ];
- } else {
- return [ 'before', $param ];
- }
- }
-
- /**
- * Wrapper for what ever method we use to parse wikitext.
- *
- * @since 1.17
- *
- * @param string $string Wikitext message contents.
- *
- * @return string Wikitext parsed into HTML.
- */
- protected function parseText( $string ) {
- $out = MessageCache::singleton()->parse(
- $string,
- $this->title,
- /*linestart*/true,
- $this->interface,
- $this->getLanguage()
- );
-
- return $out instanceof ParserOutput
- ? $out->getText( [
- 'enableSectionEditLinks' => false,
- // Wrapping messages in an extra <div> is probably not expected. If
- // they're outside the content area they probably shouldn't be
- // targeted by CSS that's targeting the parser output, and if
- // they're inside they already are from the outer div.
- 'unwrap' => true,
- ] )
- : $out;
- }
-
- /**
- * Wrapper for what ever method we use to {{-transform wikitext.
- *
- * @since 1.17
- *
- * @param string $string Wikitext message contents.
- *
- * @return string Wikitext with {{-constructs replaced with their values.
- */
- protected function transformText( $string ) {
- return MessageCache::singleton()->transform(
- $string,
- $this->interface,
- $this->getLanguage(),
- $this->title
- );
- }
-
- /**
- * Wrapper for what ever method we use to get message contents.
- *
- * @since 1.17
- *
- * @return string
- * @throws MWException If message key array is empty.
- */
- protected function fetchMessage() {
- if ( $this->message === null ) {
- $cache = MessageCache::singleton();
-
- foreach ( $this->keysToTry as $key ) {
- $message = $cache->get( $key, $this->useDatabase, $this->getLanguage() );
- if ( $message !== false && $message !== '' ) {
- break;
- }
- }
-
- // NOTE: The constructor makes sure keysToTry isn't empty,
- // so we know that $key and $message are initialized.
- $this->key = $key;
- $this->message = $message;
- }
- return $this->message;
- }
-
- /**
- * Formats a message parameter wrapped with 'plaintext'. Ensures that
- * the entire string is displayed unchanged when displayed in the output
- * format.
- *
- * @since 1.25
- *
- * @param string $plaintext String to ensure plaintext output of
- * @param string $format One of the FORMAT_* constants.
- *
- * @return string Input plaintext encoded for output to $format
- */
- protected function formatPlaintext( $plaintext, $format ) {
- switch ( $format ) {
- case self::FORMAT_TEXT:
- case self::FORMAT_PLAIN:
- return $plaintext;
-
- case self::FORMAT_PARSE:
- case self::FORMAT_BLOCK_PARSE:
- case self::FORMAT_ESCAPED:
- default:
- return htmlspecialchars( $plaintext, ENT_QUOTES );
- }
- }
-
- /**
- * Formats a list of parameters as a concatenated string.
- * @since 1.29
- * @param array $params
- * @param string $listType
- * @param string $format One of the FORMAT_* constants.
- * @return array Array with the parameter type (either "before" or "after") and the value.
- */
- protected function formatListParam( array $params, $listType, $format ) {
- if ( !isset( self::$listTypeMap[$listType] ) ) {
- $warning = 'Invalid list type for message "' . $this->getKey() . '": '
- . htmlspecialchars( $listType )
- . ' (params are ' . htmlspecialchars( serialize( $params ) ) . ')';
- trigger_error( $warning, E_USER_WARNING );
- $e = new Exception;
- wfDebugLog( 'Bug58676', $warning . "\n" . $e->getTraceAsString() );
- return [ 'before', '[INVALID]' ];
- }
- $func = self::$listTypeMap[$listType];
-
- // Handle an empty list sensibly
- if ( !$params ) {
- return [ 'before', $this->getLanguage()->$func( [] ) ];
- }
-
- // First, determine what kinds of list items we have
- $types = [];
- $vars = [];
- $list = [];
- foreach ( $params as $n => $p ) {
- list( $type, $value ) = $this->extractParam( $p, $format );
- $types[$type] = true;
- $list[] = $value;
- $vars[] = '$' . ( $n + 1 );
- }
-
- // Easy case: all are 'before' or 'after', so just join the
- // values and use the same type.
- if ( count( $types ) === 1 ) {
- return [ key( $types ), $this->getLanguage()->$func( $list ) ];
- }
-
- // Hard case: We need to process each value per its type, then
- // return the concatenated values as 'after'. We handle this by turning
- // the list into a RawMessage and processing that as a parameter.
- $vars = $this->getLanguage()->$func( $vars );
- return $this->extractParam( new RawMessage( $vars, $params ), $format );
- }
-}