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<?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
*/
namespace MediaWiki\Api;
use MediaWiki\Language\LanguageCode;
use MediaWiki\Languages\LanguageConverterFactory;
use MediaWiki\Languages\LanguageFactory;
use MediaWiki\Languages\LanguageFallback;
use MediaWiki\Languages\LanguageNameUtils;
use MediaWiki\Message\Message;
use Wikimedia\ParamValidator\ParamValidator;
use Wikimedia\Timestamp\ConvertibleTimestamp;
/**
* API module to enumerate language information.
*
* @ingroup API
*/
class ApiQueryLanguageinfo extends ApiQueryBase {
/**
* The maximum time for {@link execute()};
* if execution takes longer than this, apply continuation.
*
* If the localization cache is used, this time is not expected to ever be
* exceeded; on the other hand, if it is not used, a typical request will
* not yield more than a handful of languages before the time is exceeded
* and continuation is applied, if one of the expensive props is requested.
*/
private const MAX_EXECUTE_SECONDS = 3;
private LanguageFactory $languageFactory;
private LanguageNameUtils $languageNameUtils;
private LanguageFallback $languageFallback;
private LanguageConverterFactory $languageConverterFactory;
public function __construct(
ApiQuery $queryModule,
string $moduleName,
LanguageFactory $languageFactory,
LanguageNameUtils $languageNameUtils,
LanguageFallback $languageFallback,
LanguageConverterFactory $languageConverterFactory
) {
parent::__construct( $queryModule, $moduleName, 'li' );
$this->languageFactory = $languageFactory;
$this->languageNameUtils = $languageNameUtils;
$this->languageFallback = $languageFallback;
$this->languageConverterFactory = $languageConverterFactory;
}
public function execute() {
// ConvertibleTimestamp::time() used so we can fake the current time in tests
$endTime = ConvertibleTimestamp::time() + self::MAX_EXECUTE_SECONDS;
$props = array_fill_keys( $this->getParameter( 'prop' ), true );
$includeCode = isset( $props['code'] );
$includeBcp47 = isset( $props['bcp47'] );
$includeDir = isset( $props['dir'] );
$includeAutonym = isset( $props['autonym'] );
$includeName = isset( $props['name'] );
$includeVariantnames = isset( $props['variantnames'] );
$includeFallbacks = isset( $props['fallbacks'] );
$includeVariants = isset( $props['variants'] );
$targetLanguageCode = $this->getLanguage()->getCode();
$include = LanguageNameUtils::ALL;
$availableLanguageCodes = array_keys( $this->languageNameUtils->getLanguageNames(
// MediaWiki and extensions may return different sets of language codes
// when asked for language names in different languages;
// asking for English language names is most likely to give us the full set,
// even though we may not need those at all
'en',
$include
) );
$selectedLanguageCodes = $this->getParameter( 'code' );
if ( $selectedLanguageCodes === [ '*' ] ) {
$languageCodes = $availableLanguageCodes;
} else {
$languageCodes = array_values( array_intersect(
$availableLanguageCodes,
$selectedLanguageCodes
) );
$unrecognizedCodes = array_values( array_diff(
$selectedLanguageCodes,
$availableLanguageCodes
) );
if ( $unrecognizedCodes !== [] ) {
$this->addWarning( [
'apiwarn-unrecognizedvalues',
$this->encodeParamName( 'code' ),
Message::listParam( $unrecognizedCodes, 'comma' ),
count( $unrecognizedCodes ),
] );
}
}
// order of $languageCodes is guaranteed by LanguageNameUtils::getLanguageNames()
// and preserved by array_values() + array_intersect()
$continue = $this->getParameter( 'continue' ) ?? reset( $languageCodes );
$result = $this->getResult();
$rootPath = [
$this->getQuery()->getModuleName(),
$this->getModuleName(),
];
$result->addArrayType( $rootPath, 'assoc' );
foreach ( $languageCodes as $languageCode ) {
if ( $languageCode < $continue ) {
continue;
}
$now = ConvertibleTimestamp::time();
if ( $now >= $endTime ) {
$this->setContinueEnumParameter( 'continue', $languageCode );
break;
}
$info = [];
ApiResult::setArrayType( $info, 'assoc' );
if ( $includeCode ) {
$info['code'] = $languageCode;
}
if ( $includeBcp47 ) {
$bcp47 = LanguageCode::bcp47( $languageCode );
$info['bcp47'] = $bcp47;
}
if ( $includeDir ) {
$dir = $this->languageFactory->getLanguage( $languageCode )->getDir();
$info['dir'] = $dir;
}
if ( $includeAutonym ) {
$autonym = $this->languageNameUtils->getLanguageName(
$languageCode,
LanguageNameUtils::AUTONYMS,
$include
);
$info['autonym'] = $autonym;
}
if ( $includeName ) {
$name = $this->languageNameUtils->getLanguageName(
$languageCode,
$targetLanguageCode,
$include
);
$info['name'] = $name;
}
if ( $includeFallbacks ) {
$fallbacks = $this->languageFallback->getAll(
$languageCode,
// allow users to distinguish between implicit and explicit 'en' fallbacks
LanguageFallback::STRICT
);
ApiResult::setIndexedTagName( $fallbacks, 'fb' );
$info['fallbacks'] = $fallbacks;
}
if ( $includeVariants || $includeVariantnames ) {
$language = $this->languageFactory->getLanguage( $languageCode );
$converter = $this->languageConverterFactory->getLanguageConverter( $language );
$variants = $converter->getVariants();
if ( $includeVariants ) {
$info['variants'] = $variants;
ApiResult::setIndexedTagName( $info['variants'], 'var' );
}
if ( $includeVariantnames ) {
$info['variantnames'] = [];
foreach ( $variants as $variantCode ) {
$info['variantnames'][$variantCode] = $language->getVariantname( $variantCode );
}
}
}
$fit = $result->addValue( $rootPath, $languageCode, $info );
if ( !$fit ) {
$this->setContinueEnumParameter( 'continue', $languageCode );
break;
}
}
}
public function getCacheMode( $params ) {
return 'public';
}
public function getAllowedParams() {
return [
'prop' => [
ParamValidator::PARAM_DEFAULT => 'code',
ParamValidator::PARAM_ISMULTI => true,
ParamValidator::PARAM_TYPE => [
'code',
'bcp47',
'dir',
'autonym',
'name',
'variantnames',
'fallbacks',
'variants',
],
self::PARAM_HELP_MSG_PER_VALUE => [],
],
'code' => [
ParamValidator::PARAM_DEFAULT => '*',
ParamValidator::PARAM_ISMULTI => true,
],
'continue' => [
self::PARAM_HELP_MSG => 'api-help-param-continue',
],
];
}
protected function getExamplesMessages() {
$pathUrl = 'action=' . $this->getQuery()->getModuleName() .
'&meta=' . $this->getModuleName();
$pathMsg = $this->getModulePath();
$prefix = $this->getModulePrefix();
return [
"$pathUrl"
=> "apihelp-$pathMsg-example-simple",
"$pathUrl&{$prefix}prop=autonym|name&uselang=de"
=> "apihelp-$pathMsg-example-autonym-name-de",
"$pathUrl&{$prefix}prop=fallbacks|variants&{$prefix}code=oc"
=> "apihelp-$pathMsg-example-fallbacks-variants-oc",
"$pathUrl&{$prefix}prop=bcp47|dir"
=> "apihelp-$pathMsg-example-bcp47-dir",
];
}
}
/** @deprecated class alias since 1.43 */
class_alias( ApiQueryLanguageinfo::class, 'ApiQueryLanguageinfo' );