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| 1 | <?php |
| 2 | /** |
| 3 | * API for MediaWiki 1.17+ |
| 4 | * |
| 5 | * Copyright © 2010 Sam Reed |
| 6 | * Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com" |
| 7 | * |
| 8 | * @license GPL-2.0-or-later |
| 9 | * @file |
| 10 | */ |
| 11 | |
| 12 | namespace MediaWiki\Api; |
| 13 | |
| 14 | use MediaWiki\Deferred\LinksUpdate\InterwikiLinksTable; |
| 15 | use MediaWiki\Title\Title; |
| 16 | use Wikimedia\ParamValidator\ParamValidator; |
| 17 | use Wikimedia\ParamValidator\TypeDef\IntegerDef; |
| 18 | |
| 19 | /** |
| 20 | * This gives links pointing to the given interwiki |
| 21 | * @ingroup API |
| 22 | */ |
| 23 | class ApiQueryIWBacklinks extends ApiQueryGeneratorBase { |
| 24 | |
| 25 | public function __construct( ApiQuery $query, string $moduleName ) { |
| 26 | parent::__construct( $query, $moduleName, 'iwbl' ); |
| 27 | } |
| 28 | |
| 29 | public function execute() { |
| 30 | $this->run(); |
| 31 | } |
| 32 | |
| 33 | /** @inheritDoc */ |
| 34 | public function executeGenerator( $resultPageSet ) { |
| 35 | $this->run( $resultPageSet ); |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * @param ApiPageSet|null $resultPageSet |
| 40 | * @return void |
| 41 | */ |
| 42 | public function run( $resultPageSet = null ) { |
| 43 | $params = $this->extractRequestParams(); |
| 44 | |
| 45 | if ( isset( $params['title'] ) && !isset( $params['prefix'] ) ) { |
| 46 | $this->dieWithError( |
| 47 | [ |
| 48 | 'apierror-invalidparammix-mustusewith', |
| 49 | $this->encodeParamName( 'title' ), |
| 50 | $this->encodeParamName( 'prefix' ), |
| 51 | ], |
| 52 | 'invalidparammix' |
| 53 | ); |
| 54 | } |
| 55 | |
| 56 | $this->setVirtualDomain( InterwikiLinksTable::VIRTUAL_DOMAIN ); |
| 57 | $db = $this->getDB(); |
| 58 | |
| 59 | if ( $params['continue'] !== null ) { |
| 60 | $cont = $this->parseContinueParamOrDie( $params['continue'], [ 'string', 'string', 'int' ] ); |
| 61 | $op = $params['dir'] == 'descending' ? '<=' : '>='; |
| 62 | $this->addWhere( $db->buildComparison( $op, [ |
| 63 | 'iwl_prefix' => $cont[0], |
| 64 | 'iwl_title' => $cont[1], |
| 65 | 'iwl_from' => $cont[2], |
| 66 | ] ) ); |
| 67 | } |
| 68 | |
| 69 | $prop = array_fill_keys( $params['prop'], true ); |
| 70 | $iwprefix = isset( $prop['iwprefix'] ); |
| 71 | $iwtitle = isset( $prop['iwtitle'] ); |
| 72 | |
| 73 | $this->addTables( [ 'iwlinks', 'page' ] ); |
| 74 | $this->addWhere( 'iwl_from = page_id' ); |
| 75 | |
| 76 | $this->addFields( [ 'page_id', 'page_title', 'page_namespace', 'page_is_redirect', |
| 77 | 'iwl_from', 'iwl_prefix', 'iwl_title' ] ); |
| 78 | |
| 79 | $sort = ( $params['dir'] == 'descending' ? ' DESC' : '' ); |
| 80 | if ( isset( $params['prefix'] ) ) { |
| 81 | $this->addWhereFld( 'iwl_prefix', $params['prefix'] ); |
| 82 | if ( isset( $params['title'] ) ) { |
| 83 | $this->addWhereFld( 'iwl_title', $params['title'] ); |
| 84 | $this->addOption( 'ORDER BY', 'iwl_from' . $sort ); |
| 85 | } else { |
| 86 | $this->addOption( 'ORDER BY', [ |
| 87 | 'iwl_title' . $sort, |
| 88 | 'iwl_from' . $sort |
| 89 | ] ); |
| 90 | } |
| 91 | } else { |
| 92 | $this->addOption( 'ORDER BY', [ |
| 93 | 'iwl_prefix' . $sort, |
| 94 | 'iwl_title' . $sort, |
| 95 | 'iwl_from' . $sort |
| 96 | ] ); |
| 97 | } |
| 98 | |
| 99 | $this->addOption( 'LIMIT', $params['limit'] + 1 ); |
| 100 | |
| 101 | $res = $this->select( __METHOD__ ); |
| 102 | |
| 103 | $pages = []; |
| 104 | |
| 105 | $count = 0; |
| 106 | $result = $this->getResult(); |
| 107 | |
| 108 | if ( $resultPageSet === null ) { |
| 109 | $this->executeGenderCacheFromResultWrapper( $res, __METHOD__ ); |
| 110 | } |
| 111 | |
| 112 | foreach ( $res as $row ) { |
| 113 | if ( ++$count > $params['limit'] ) { |
| 114 | // We've reached the one extra which shows that there are |
| 115 | // additional pages to be had. Stop here... |
| 116 | // Continue string preserved in case the redirect query doesn't |
| 117 | // pass the limit |
| 118 | $this->setContinueEnumParameter( |
| 119 | 'continue', |
| 120 | "{$row->iwl_prefix}|{$row->iwl_title}|{$row->iwl_from}" |
| 121 | ); |
| 122 | break; |
| 123 | } |
| 124 | |
| 125 | if ( $resultPageSet !== null ) { |
| 126 | $pages[] = Title::newFromRow( $row ); |
| 127 | } else { |
| 128 | $entry = [ 'pageid' => (int)$row->page_id ]; |
| 129 | |
| 130 | $title = Title::makeTitle( $row->page_namespace, $row->page_title ); |
| 131 | ApiQueryBase::addTitleInfo( $entry, $title ); |
| 132 | |
| 133 | if ( $row->page_is_redirect ) { |
| 134 | $entry['redirect'] = true; |
| 135 | } |
| 136 | |
| 137 | if ( $iwprefix ) { |
| 138 | $entry['iwprefix'] = $row->iwl_prefix; |
| 139 | } |
| 140 | |
| 141 | if ( $iwtitle ) { |
| 142 | $entry['iwtitle'] = $row->iwl_title; |
| 143 | } |
| 144 | |
| 145 | $fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $entry ); |
| 146 | if ( !$fit ) { |
| 147 | $this->setContinueEnumParameter( |
| 148 | 'continue', |
| 149 | "{$row->iwl_prefix}|{$row->iwl_title}|{$row->iwl_from}" |
| 150 | ); |
| 151 | break; |
| 152 | } |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | if ( $resultPageSet === null ) { |
| 157 | $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'iw' ); |
| 158 | } else { |
| 159 | $resultPageSet->populateFromTitles( $pages ); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | /** @inheritDoc */ |
| 164 | public function getCacheMode( $params ) { |
| 165 | return 'public'; |
| 166 | } |
| 167 | |
| 168 | /** @inheritDoc */ |
| 169 | public function getAllowedParams() { |
| 170 | return [ |
| 171 | 'prefix' => null, |
| 172 | 'title' => null, |
| 173 | 'continue' => [ |
| 174 | ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', |
| 175 | ], |
| 176 | 'limit' => [ |
| 177 | ParamValidator::PARAM_DEFAULT => 10, |
| 178 | ParamValidator::PARAM_TYPE => 'limit', |
| 179 | IntegerDef::PARAM_MIN => 1, |
| 180 | IntegerDef::PARAM_MAX => ApiBase::LIMIT_BIG1, |
| 181 | IntegerDef::PARAM_MAX2 => ApiBase::LIMIT_BIG2 |
| 182 | ], |
| 183 | 'prop' => [ |
| 184 | ParamValidator::PARAM_ISMULTI => true, |
| 185 | ParamValidator::PARAM_DEFAULT => '', |
| 186 | ParamValidator::PARAM_TYPE => [ |
| 187 | 'iwprefix', |
| 188 | 'iwtitle', |
| 189 | ], |
| 190 | ApiBase::PARAM_HELP_MSG_PER_VALUE => [], |
| 191 | ], |
| 192 | 'dir' => [ |
| 193 | ParamValidator::PARAM_DEFAULT => 'ascending', |
| 194 | ParamValidator::PARAM_TYPE => [ |
| 195 | 'ascending', |
| 196 | 'descending' |
| 197 | ] |
| 198 | ], |
| 199 | ]; |
| 200 | } |
| 201 | |
| 202 | /** @inheritDoc */ |
| 203 | protected function getExamplesMessages() { |
| 204 | return [ |
| 205 | 'action=query&list=iwbacklinks&iwbltitle=Test&iwblprefix=wikibooks' |
| 206 | => 'apihelp-query+iwbacklinks-example-simple', |
| 207 | 'action=query&generator=iwbacklinks&giwbltitle=Test&giwblprefix=wikibooks&prop=info' |
| 208 | => 'apihelp-query+iwbacklinks-example-generator', |
| 209 | ]; |
| 210 | } |
| 211 | |
| 212 | /** @inheritDoc */ |
| 213 | public function getHelpUrls() { |
| 214 | return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Iwbacklinks'; |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | /** @deprecated class alias since 1.43 */ |
| 219 | class_alias( ApiQueryIWBacklinks::class, 'ApiQueryIWBacklinks' ); |