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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\CiteThisPage; |
| 4 | |
| 5 | use MediaWiki\Html\Html; |
| 6 | use MediaWiki\HTMLForm\HTMLForm; |
| 7 | use MediaWiki\Parser\Parser; |
| 8 | use MediaWiki\Parser\ParserFactory; |
| 9 | use MediaWiki\Parser\ParserOptions; |
| 10 | use MediaWiki\Revision\RevisionLookup; |
| 11 | use MediaWiki\SpecialPage\FormSpecialPage; |
| 12 | use MediaWiki\Title\Title; |
| 13 | use SearchEngineFactory; |
| 14 | |
| 15 | class SpecialCiteThisPage extends FormSpecialPage { |
| 16 | |
| 17 | /** |
| 18 | * @var Parser |
| 19 | */ |
| 20 | private $citationParser; |
| 21 | |
| 22 | /** |
| 23 | * @var Title|bool |
| 24 | */ |
| 25 | protected $title = false; |
| 26 | |
| 27 | /** @var SearchEngineFactory */ |
| 28 | private $searchEngineFactory; |
| 29 | |
| 30 | /** @var RevisionLookup */ |
| 31 | private $revisionLookup; |
| 32 | |
| 33 | /** @var ParserFactory */ |
| 34 | private $parserFactory; |
| 35 | |
| 36 | /** |
| 37 | * @param SearchEngineFactory $searchEngineFactory |
| 38 | * @param RevisionLookup $revisionLookup |
| 39 | * @param ParserFactory $parserFactory |
| 40 | */ |
| 41 | public function __construct( |
| 42 | SearchEngineFactory $searchEngineFactory, |
| 43 | RevisionLookup $revisionLookup, |
| 44 | ParserFactory $parserFactory |
| 45 | ) { |
| 46 | parent::__construct( 'CiteThisPage' ); |
| 47 | $this->searchEngineFactory = $searchEngineFactory; |
| 48 | $this->revisionLookup = $revisionLookup; |
| 49 | $this->parserFactory = $parserFactory; |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * @param string $par |
| 54 | */ |
| 55 | public function execute( $par ) { |
| 56 | $this->setHeaders(); |
| 57 | $this->addHelpLink( 'Extension:CiteThisPage' ); |
| 58 | parent::execute( $par ); |
| 59 | if ( $this->title instanceof Title ) { |
| 60 | $id = $this->getRequest()->getInt( 'id' ); |
| 61 | $this->showCitations( $this->title, $id ); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * @param HTMLForm $form |
| 67 | */ |
| 68 | protected function alterForm( HTMLForm $form ) { |
| 69 | $form->setMethod( 'get' ); |
| 70 | $form->setFormIdentifier( 'titleform' ); |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * @return array |
| 75 | */ |
| 76 | protected function getFormFields() { |
| 77 | return [ |
| 78 | 'page' => [ |
| 79 | 'name' => 'page', |
| 80 | 'type' => 'title', |
| 81 | 'exists' => true, |
| 82 | 'default' => $this->par ?? '', |
| 83 | 'label-message' => 'citethispage-change-target' |
| 84 | ] |
| 85 | ]; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * @param array $data |
| 90 | * @return bool |
| 91 | */ |
| 92 | public function onSubmit( array $data ) { |
| 93 | // GET forms are "submitted" on every view, so check |
| 94 | // that some data was put in for page |
| 95 | if ( strlen( $data['page'] ) ) { |
| 96 | $this->title = Title::newFromText( $data['page'] ); |
| 97 | } |
| 98 | return true; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Return an array of subpages beginning with $search that this special page will accept. |
| 103 | * |
| 104 | * @param string $search Prefix to search for |
| 105 | * @param int $limit Maximum number of results to return (usually 10) |
| 106 | * @param int $offset Number of results to skip (usually 0) |
| 107 | * @return string[] Matching subpages |
| 108 | */ |
| 109 | public function prefixSearchSubpages( $search, $limit, $offset ) { |
| 110 | return $this->prefixSearchString( $search, $limit, $offset, $this->searchEngineFactory ); |
| 111 | } |
| 112 | |
| 113 | /** @inheritDoc */ |
| 114 | protected function getGroupName() { |
| 115 | return 'pagetools'; |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * @param Title $title |
| 120 | * @param int $revId |
| 121 | */ |
| 122 | private function showCitations( Title $title, $revId ) { |
| 123 | if ( !$revId ) { |
| 124 | $revId = $title->getLatestRevID(); |
| 125 | } |
| 126 | |
| 127 | $out = $this->getOutput(); |
| 128 | |
| 129 | $revTimestamp = $this->revisionLookup->getTimestampFromId( $revId ); |
| 130 | |
| 131 | if ( !$revTimestamp ) { |
| 132 | $out->addHTML( |
| 133 | Html::errorBox( |
| 134 | $out->msg( 'citethispage-badrevision', $title->getPrefixedText(), $revId )->parse() |
| 135 | ) |
| 136 | ); |
| 137 | return; |
| 138 | } |
| 139 | |
| 140 | $parserOptions = $this->getParserOptions(); |
| 141 | // Set the overall timestamp to the revision's timestamp |
| 142 | $parserOptions->setTimestamp( $revTimestamp ); |
| 143 | |
| 144 | $parser = $this->parserFactory->create(); |
| 145 | // Register our <citation> tag which just parses using a different |
| 146 | // context |
| 147 | $parser->setHook( 'citation', [ $this, 'citationTag' ] ); |
| 148 | |
| 149 | // Also hold on to a separate Parser instance for <citation> tag parsing |
| 150 | // since we can't parse in a parse using the same Parser |
| 151 | $this->citationParser = $this->parserFactory->create(); |
| 152 | |
| 153 | $ret = $parser->parse( |
| 154 | $this->getContentText(), |
| 155 | $title, |
| 156 | $parserOptions, |
| 157 | /* $linestart = */ false, |
| 158 | /* $clearstate = */ true, |
| 159 | $revId |
| 160 | ); |
| 161 | |
| 162 | $this->getOutput()->addModuleStyles( 'ext.citeThisPage' ); |
| 163 | $this->getOutput()->addParserOutputContent( $ret, [ |
| 164 | 'enableSectionEditLinks' => false, |
| 165 | ] ); |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Get the content to parse |
| 170 | * |
| 171 | * @return string |
| 172 | */ |
| 173 | private function getContentText() { |
| 174 | $msg = $this->msg( 'citethispage-content' )->inContentLanguage()->plain(); |
| 175 | if ( $msg == '' ) { |
| 176 | # With MediaWiki 1.20 the plain text files were deleted |
| 177 | # and the text moved into SpecialCite.i18n.php |
| 178 | # This code is kept for b/c in case an installation has its own file "citethispage-content-xx" |
| 179 | # for a previously not supported language. |
| 180 | $dir = __DIR__ . '/../'; |
| 181 | $contentLang = $this->getContentLanguage(); |
| 182 | $code = $contentLang->lc( $contentLang->getCode() ); |
| 183 | if ( file_exists( "{$dir}citethispage-content-$code" ) ) { |
| 184 | $msg = file_get_contents( "{$dir}citethispage-content-$code" ); |
| 185 | } elseif ( file_exists( "{$dir}citethispage-content" ) ) { |
| 186 | $msg = file_get_contents( "{$dir}citethispage-content" ); |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | return $msg; |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Get the common ParserOptions for both parses |
| 195 | * |
| 196 | * @return ParserOptions |
| 197 | */ |
| 198 | private function getParserOptions() { |
| 199 | $parserOptions = ParserOptions::newFromContext( $this->getContext() ); |
| 200 | $parserOptions->setDateFormat( 'default' ); |
| 201 | $parserOptions->setInterfaceMessage( true ); |
| 202 | return $parserOptions; |
| 203 | } |
| 204 | |
| 205 | /** |
| 206 | * Implements the <citation> tag. |
| 207 | * |
| 208 | * This is a hack to allow content that is typically parsed |
| 209 | * using the page's timestamp/pagetitle to use the current |
| 210 | * request's time and title |
| 211 | * |
| 212 | * @param string $text |
| 213 | * @param array $params |
| 214 | * @param Parser $parser |
| 215 | * @return string |
| 216 | */ |
| 217 | public function citationTag( $text, $params, Parser $parser ) { |
| 218 | $parserOptions = $this->getParserOptions(); |
| 219 | |
| 220 | $ret = $this->citationParser->parse( |
| 221 | $text, |
| 222 | $this->getPageTitle(), |
| 223 | $parserOptions, |
| 224 | /* $linestart = */ false |
| 225 | ); |
| 226 | |
| 227 | return Parser::stripOuterParagraph( $ret->getRawText() ); |
| 228 | } |
| 229 | |
| 230 | /** @inheritDoc */ |
| 231 | protected function getDisplayFormat() { |
| 232 | return 'ooui'; |
| 233 | } |
| 234 | |
| 235 | /** @inheritDoc */ |
| 236 | public function requiresUnblock() { |
| 237 | return false; |
| 238 | } |
| 239 | |
| 240 | /** @inheritDoc */ |
| 241 | public function requiresWrite() { |
| 242 | return false; |
| 243 | } |
| 244 | } |