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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | use MediaWiki\Languages\LanguageConverterFactory; |
| 22 | use MediaWiki\Languages\LanguageFactory; |
| 23 | use MediaWiki\Languages\LanguageFallback; |
| 24 | use MediaWiki\Languages\LanguageNameUtils; |
| 25 | use Wikimedia\ParamValidator\ParamValidator; |
| 26 | use Wikimedia\Timestamp\ConvertibleTimestamp; |
| 27 | |
| 28 | /** |
| 29 | * API module to enumerate language information. |
| 30 | * |
| 31 | * @ingroup API |
| 32 | */ |
| 33 | class ApiQueryLanguageinfo extends ApiQueryBase { |
| 34 | |
| 35 | /** |
| 36 | * The maximum time for {@link execute()}; |
| 37 | * if execution takes longer than this, apply continuation. |
| 38 | * |
| 39 | * If the localization cache is used, this time is not expected to ever be |
| 40 | * exceeded; on the other hand, if it is not used, a typical request will |
| 41 | * not yield more than a handful of languages before the time is exceeded |
| 42 | * and continuation is applied, if one of the expensive props is requested. |
| 43 | */ |
| 44 | private const MAX_EXECUTE_SECONDS = 3; |
| 45 | |
| 46 | private LanguageFactory $languageFactory; |
| 47 | private LanguageNameUtils $languageNameUtils; |
| 48 | private LanguageFallback $languageFallback; |
| 49 | private LanguageConverterFactory $languageConverterFactory; |
| 50 | |
| 51 | /** |
| 52 | * @param ApiQuery $queryModule |
| 53 | * @param string $moduleName |
| 54 | * @param LanguageFactory $languageFactory |
| 55 | * @param LanguageNameUtils $languageNameUtils |
| 56 | * @param LanguageFallback $languageFallback |
| 57 | * @param LanguageConverterFactory $languageConverterFactory |
| 58 | */ |
| 59 | public function __construct( |
| 60 | ApiQuery $queryModule, |
| 61 | $moduleName, |
| 62 | LanguageFactory $languageFactory, |
| 63 | LanguageNameUtils $languageNameUtils, |
| 64 | LanguageFallback $languageFallback, |
| 65 | LanguageConverterFactory $languageConverterFactory |
| 66 | ) { |
| 67 | parent::__construct( $queryModule, $moduleName, 'li' ); |
| 68 | $this->languageFactory = $languageFactory; |
| 69 | $this->languageNameUtils = $languageNameUtils; |
| 70 | $this->languageFallback = $languageFallback; |
| 71 | $this->languageConverterFactory = $languageConverterFactory; |
| 72 | } |
| 73 | |
| 74 | public function execute() { |
| 75 | // ConvertibleTimestamp::time() used so we can fake the current time in tests |
| 76 | $endTime = ConvertibleTimestamp::time() + self::MAX_EXECUTE_SECONDS; |
| 77 | |
| 78 | $props = array_fill_keys( $this->getParameter( 'prop' ), true ); |
| 79 | $includeCode = isset( $props['code'] ); |
| 80 | $includeBcp47 = isset( $props['bcp47'] ); |
| 81 | $includeDir = isset( $props['dir'] ); |
| 82 | $includeAutonym = isset( $props['autonym'] ); |
| 83 | $includeName = isset( $props['name'] ); |
| 84 | $includeVariantnames = isset( $props['variantnames'] ); |
| 85 | $includeFallbacks = isset( $props['fallbacks'] ); |
| 86 | $includeVariants = isset( $props['variants'] ); |
| 87 | |
| 88 | $targetLanguageCode = $this->getLanguage()->getCode(); |
| 89 | $include = LanguageNameUtils::ALL; |
| 90 | |
| 91 | $availableLanguageCodes = array_keys( $this->languageNameUtils->getLanguageNames( |
| 92 | // MediaWiki and extensions may return different sets of language codes |
| 93 | // when asked for language names in different languages; |
| 94 | // asking for English language names is most likely to give us the full set, |
| 95 | // even though we may not need those at all |
| 96 | 'en', |
| 97 | $include |
| 98 | ) ); |
| 99 | $selectedLanguageCodes = $this->getParameter( 'code' ); |
| 100 | if ( $selectedLanguageCodes === [ '*' ] ) { |
| 101 | $languageCodes = $availableLanguageCodes; |
| 102 | } else { |
| 103 | $languageCodes = array_values( array_intersect( |
| 104 | $availableLanguageCodes, |
| 105 | $selectedLanguageCodes |
| 106 | ) ); |
| 107 | $unrecognizedCodes = array_values( array_diff( |
| 108 | $selectedLanguageCodes, |
| 109 | $availableLanguageCodes |
| 110 | ) ); |
| 111 | if ( $unrecognizedCodes !== [] ) { |
| 112 | $this->addWarning( [ |
| 113 | 'apiwarn-unrecognizedvalues', |
| 114 | $this->encodeParamName( 'code' ), |
| 115 | Message::listParam( $unrecognizedCodes, 'comma' ), |
| 116 | count( $unrecognizedCodes ), |
| 117 | ] ); |
| 118 | } |
| 119 | } |
| 120 | // order of $languageCodes is guaranteed by LanguageNameUtils::getLanguageNames() |
| 121 | // and preserved by array_values() + array_intersect() |
| 122 | |
| 123 | $continue = $this->getParameter( 'continue' ) ?? reset( $languageCodes ); |
| 124 | |
| 125 | $result = $this->getResult(); |
| 126 | $rootPath = [ |
| 127 | $this->getQuery()->getModuleName(), |
| 128 | $this->getModuleName(), |
| 129 | ]; |
| 130 | $result->addArrayType( $rootPath, 'assoc' ); |
| 131 | |
| 132 | foreach ( $languageCodes as $languageCode ) { |
| 133 | if ( $languageCode < $continue ) { |
| 134 | continue; |
| 135 | } |
| 136 | |
| 137 | $now = ConvertibleTimestamp::time(); |
| 138 | if ( $now >= $endTime ) { |
| 139 | $this->setContinueEnumParameter( 'continue', $languageCode ); |
| 140 | break; |
| 141 | } |
| 142 | |
| 143 | $info = []; |
| 144 | ApiResult::setArrayType( $info, 'assoc' ); |
| 145 | |
| 146 | if ( $includeCode ) { |
| 147 | $info['code'] = $languageCode; |
| 148 | } |
| 149 | |
| 150 | if ( $includeBcp47 ) { |
| 151 | $bcp47 = LanguageCode::bcp47( $languageCode ); |
| 152 | $info['bcp47'] = $bcp47; |
| 153 | } |
| 154 | |
| 155 | if ( $includeDir ) { |
| 156 | $dir = $this->languageFactory->getLanguage( $languageCode )->getDir(); |
| 157 | $info['dir'] = $dir; |
| 158 | } |
| 159 | |
| 160 | if ( $includeAutonym ) { |
| 161 | $autonym = $this->languageNameUtils->getLanguageName( |
| 162 | $languageCode, |
| 163 | LanguageNameUtils::AUTONYMS, |
| 164 | $include |
| 165 | ); |
| 166 | $info['autonym'] = $autonym; |
| 167 | } |
| 168 | |
| 169 | if ( $includeName ) { |
| 170 | $name = $this->languageNameUtils->getLanguageName( |
| 171 | $languageCode, |
| 172 | $targetLanguageCode, |
| 173 | $include |
| 174 | ); |
| 175 | $info['name'] = $name; |
| 176 | } |
| 177 | |
| 178 | if ( $includeFallbacks ) { |
| 179 | $fallbacks = $this->languageFallback->getAll( |
| 180 | $languageCode, |
| 181 | // allow users to distinguish between implicit and explicit 'en' fallbacks |
| 182 | LanguageFallback::STRICT |
| 183 | ); |
| 184 | ApiResult::setIndexedTagName( $fallbacks, 'fb' ); |
| 185 | $info['fallbacks'] = $fallbacks; |
| 186 | } |
| 187 | |
| 188 | if ( $includeVariants || $includeVariantnames ) { |
| 189 | $language = $this->languageFactory->getLanguage( $languageCode ); |
| 190 | $converter = $this->languageConverterFactory->getLanguageConverter( $language ); |
| 191 | $variants = $converter->getVariants(); |
| 192 | |
| 193 | if ( $includeVariants ) { |
| 194 | $info['variants'] = $variants; |
| 195 | ApiResult::setIndexedTagName( $info['variants'], 'var' ); |
| 196 | } |
| 197 | if ( $includeVariantnames ) { |
| 198 | $info['variantnames'] = []; |
| 199 | foreach ( $variants as $variantCode ) { |
| 200 | $info['variantnames'][$variantCode] = $language->getVariantname( $variantCode ); |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | $fit = $result->addValue( $rootPath, $languageCode, $info ); |
| 206 | if ( !$fit ) { |
| 207 | $this->setContinueEnumParameter( 'continue', $languageCode ); |
| 208 | break; |
| 209 | } |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | public function getCacheMode( $params ) { |
| 214 | return 'public'; |
| 215 | } |
| 216 | |
| 217 | public function getAllowedParams() { |
| 218 | return [ |
| 219 | 'prop' => [ |
| 220 | ParamValidator::PARAM_DEFAULT => 'code', |
| 221 | ParamValidator::PARAM_ISMULTI => true, |
| 222 | ParamValidator::PARAM_TYPE => [ |
| 223 | 'code', |
| 224 | 'bcp47', |
| 225 | 'dir', |
| 226 | 'autonym', |
| 227 | 'name', |
| 228 | 'variantnames', |
| 229 | 'fallbacks', |
| 230 | 'variants', |
| 231 | ], |
| 232 | self::PARAM_HELP_MSG_PER_VALUE => [], |
| 233 | ], |
| 234 | 'code' => [ |
| 235 | ParamValidator::PARAM_DEFAULT => '*', |
| 236 | ParamValidator::PARAM_ISMULTI => true, |
| 237 | ], |
| 238 | 'continue' => [ |
| 239 | self::PARAM_HELP_MSG => 'api-help-param-continue', |
| 240 | ], |
| 241 | ]; |
| 242 | } |
| 243 | |
| 244 | protected function getExamplesMessages() { |
| 245 | $pathUrl = 'action=' . $this->getQuery()->getModuleName() . |
| 246 | '&meta=' . $this->getModuleName(); |
| 247 | $pathMsg = $this->getModulePath(); |
| 248 | $prefix = $this->getModulePrefix(); |
| 249 | |
| 250 | return [ |
| 251 | "$pathUrl" |
| 252 | => "apihelp-$pathMsg-example-simple", |
| 253 | "$pathUrl&{$prefix}prop=autonym|name&uselang=de" |
| 254 | => "apihelp-$pathMsg-example-autonym-name-de", |
| 255 | "$pathUrl&{$prefix}prop=fallbacks|variants&{$prefix}code=oc" |
| 256 | => "apihelp-$pathMsg-example-fallbacks-variants-oc", |
| 257 | "$pathUrl&{$prefix}prop=bcp47|dir" |
| 258 | => "apihelp-$pathMsg-example-bcp47-dir", |
| 259 | ]; |
| 260 | } |
| 261 | |
| 262 | } |