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| 1 | <?php |
| 2 | /** |
| 3 | * @license GPL-2.0-or-later |
| 4 | * @file |
| 5 | */ |
| 6 | |
| 7 | namespace MediaWiki\Specials; |
| 8 | |
| 9 | use MediaWiki\Html\Html; |
| 10 | use MediaWiki\HTMLForm\Field\HTMLCheckField; |
| 11 | use MediaWiki\HTMLForm\HTMLForm; |
| 12 | use MediaWiki\Page\LinkCache; |
| 13 | use MediaWiki\Title\Title; |
| 14 | use Wikimedia\Rdbms\IConnectionProvider; |
| 15 | use Wikimedia\Rdbms\IExpression; |
| 16 | use Wikimedia\Rdbms\LikeValue; |
| 17 | |
| 18 | /** |
| 19 | * Implements Special:Prefixindex |
| 20 | * |
| 21 | * @ingroup SpecialPage |
| 22 | * @ingroup Search |
| 23 | */ |
| 24 | class SpecialPrefixIndex extends SpecialAllPages { |
| 25 | |
| 26 | /** |
| 27 | * Whether to remove the searched prefix from the displayed link. Useful |
| 28 | * for inclusion of a set of subpages in a root page. |
| 29 | * @var bool |
| 30 | */ |
| 31 | protected $stripPrefix = false; |
| 32 | |
| 33 | /** @var bool */ |
| 34 | protected $hideRedirects = false; |
| 35 | |
| 36 | // Inherit $maxPerPage |
| 37 | |
| 38 | // phpcs:ignore MediaWiki.Commenting.PropertyDocumentation.WrongStyle |
| 39 | |
| 40 | public function __construct( |
| 41 | private readonly IConnectionProvider $dbProvider, |
| 42 | private readonly LinkCache $linkCache, |
| 43 | ) { |
| 44 | parent::__construct( $dbProvider ); |
| 45 | $this->mName = 'Prefixindex'; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Entry point: initialise variables and call subfunctions. |
| 50 | * @param string|null $par Becomes "FOO" when called like Special:Prefixindex/FOO |
| 51 | */ |
| 52 | public function execute( $par ) { |
| 53 | $this->setHeaders(); |
| 54 | $this->outputHeader(); |
| 55 | |
| 56 | $out = $this->getOutput(); |
| 57 | $out->addModuleStyles( 'mediawiki.special' ); |
| 58 | |
| 59 | # GET values |
| 60 | $request = $this->getRequest(); |
| 61 | $from = $request->getVal( 'from', '' ); |
| 62 | $prefix = $request->getVal( 'prefix', '' ); |
| 63 | $ns = $request->getIntOrNull( 'namespace' ); |
| 64 | $namespace = (int)$ns; // if no namespace given, use 0 (NS_MAIN). |
| 65 | $this->hideRedirects = $request->getBool( 'hideredirects', $this->hideRedirects ); |
| 66 | $this->stripPrefix = $request->getBool( 'stripprefix', $this->stripPrefix ); |
| 67 | |
| 68 | $namespaces = $this->getContentLanguage()->getNamespaces(); |
| 69 | $out->setPageTitleMsg( |
| 70 | ( $namespace > 0 && array_key_exists( $namespace, $namespaces ) ) |
| 71 | ? $this->msg( 'prefixindex-namespace' )->plaintextParams( |
| 72 | str_replace( '_', ' ', $namespaces[$namespace] ) |
| 73 | ) |
| 74 | : $this->msg( 'prefixindex' ) |
| 75 | ); |
| 76 | |
| 77 | $showme = ''; |
| 78 | if ( $par !== null ) { |
| 79 | $showme = $par; |
| 80 | } elseif ( $prefix != '' ) { |
| 81 | $showme = $prefix; |
| 82 | } elseif ( $from != '' && $ns === null ) { |
| 83 | // For back-compat with Special:Allpages |
| 84 | // Don't do this if namespace is passed, so paging works when doing NS views. |
| 85 | $showme = $from; |
| 86 | } |
| 87 | |
| 88 | // T29864: if transcluded, show all pages instead of the form. |
| 89 | if ( $this->including() || $showme != '' || $ns !== null ) { |
| 90 | $this->showPrefixChunk( $namespace, $showme, $from ); |
| 91 | } else { |
| 92 | $out->addHTML( $this->namespacePrefixForm( $namespace, '' )->getHTML( false ) ); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Prepared HTMLForm object for the top form |
| 98 | * @param int $namespace A namespace constant (default NS_MAIN). |
| 99 | * @param string $from DbKey we are starting listing at. |
| 100 | * @return HTMLForm |
| 101 | */ |
| 102 | protected function namespacePrefixForm( $namespace = NS_MAIN, $from = '' ): HTMLForm { |
| 103 | $formDescriptor = [ |
| 104 | 'prefix' => [ |
| 105 | 'label-message' => 'allpagesprefix', |
| 106 | 'name' => 'prefix', |
| 107 | 'id' => 'nsfrom', |
| 108 | 'type' => 'text', |
| 109 | 'size' => '30', |
| 110 | 'default' => str_replace( '_', ' ', $from ), |
| 111 | ], |
| 112 | 'namespace' => [ |
| 113 | 'type' => 'namespaceselect', |
| 114 | 'name' => 'namespace', |
| 115 | 'id' => 'namespace', |
| 116 | 'label-message' => 'namespace', |
| 117 | 'all' => null, |
| 118 | 'default' => $namespace, |
| 119 | ], |
| 120 | 'hidedirects' => [ |
| 121 | 'class' => HTMLCheckField::class, |
| 122 | 'name' => 'hideredirects', |
| 123 | 'label-message' => 'allpages-hide-redirects', |
| 124 | ], |
| 125 | 'stripprefix' => [ |
| 126 | 'class' => HTMLCheckField::class, |
| 127 | 'name' => 'stripprefix', |
| 128 | 'label-message' => 'prefixindex-strip', |
| 129 | ], |
| 130 | ]; |
| 131 | |
| 132 | $this->getHookRunner()->onSpecialPrefixIndexGetFormFilters( $this->getContext(), $formDescriptor ); |
| 133 | |
| 134 | $htmlForm = HTMLForm::factory( 'ooui', $formDescriptor, $this->getContext() ) |
| 135 | ->setMethod( 'get' ) |
| 136 | ->setTitle( $this->getPageTitle() ) // Remove subpage |
| 137 | ->setWrapperLegendMsg( 'prefixindex' ) |
| 138 | ->setSubmitTextMsg( 'prefixindex-submit' ); |
| 139 | |
| 140 | return $htmlForm->prepareForm(); |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * @param int $namespace |
| 145 | * @param string $prefix |
| 146 | * @param string|null $from List all pages from this name (default false) |
| 147 | */ |
| 148 | protected function showPrefixChunk( $namespace, $prefix, $from = null ) { |
| 149 | $from ??= $prefix; |
| 150 | |
| 151 | $fromList = $this->getNamespaceKeyAndText( $namespace, $from ); |
| 152 | $prefixList = $this->getNamespaceKeyAndText( $namespace, $prefix ); |
| 153 | $namespaces = $this->getContentLanguage()->getNamespaces(); |
| 154 | $res = null; |
| 155 | $n = 0; |
| 156 | $nextRow = null; |
| 157 | $preparedHtmlForm = $this->namespacePrefixForm( $namespace, $prefix ); |
| 158 | |
| 159 | if ( !$prefixList || !$fromList ) { |
| 160 | $out = $this->msg( 'allpagesbadtitle' )->parseAsBlock(); |
| 161 | } elseif ( !array_key_exists( $namespace, $namespaces ) ) { |
| 162 | // Show errormessage and reset to NS_MAIN |
| 163 | $out = $this->msg( 'allpages-bad-ns', $namespace )->parse(); |
| 164 | $namespace = NS_MAIN; |
| 165 | } else { |
| 166 | [ $namespace, $prefixKey, $prefix ] = $prefixList; |
| 167 | [ /* $fromNS */, $fromKey, ] = $fromList; |
| 168 | |
| 169 | # ## @todo FIXME: Should complain if $fromNs != $namespace |
| 170 | |
| 171 | $dbr = $this->dbProvider->getReplicaDatabase(); |
| 172 | $queryBuilder = $dbr->newSelectQueryBuilder() |
| 173 | ->select( LinkCache::getSelectFields() ) |
| 174 | ->from( 'page' ) |
| 175 | ->where( [ |
| 176 | 'page_namespace' => $namespace, |
| 177 | $dbr->expr( |
| 178 | 'page_title', |
| 179 | IExpression::LIKE, |
| 180 | new LikeValue( $prefixKey, $dbr->anyString() ) |
| 181 | ), |
| 182 | $dbr->expr( 'page_title', '>=', $fromKey ), |
| 183 | ] ) |
| 184 | ->orderBy( 'page_title' ) |
| 185 | ->limit( $this->maxPerPage + 1 ) |
| 186 | ->useIndex( 'page_name_title' ); |
| 187 | |
| 188 | if ( $this->hideRedirects ) { |
| 189 | $queryBuilder->andWhere( [ 'page_is_redirect' => 0 ] ); |
| 190 | } |
| 191 | |
| 192 | $this->getHookRunner()->onSpecialPrefixIndexQuery( $preparedHtmlForm->mFieldData, $queryBuilder ); |
| 193 | |
| 194 | $res = $queryBuilder->caller( __METHOD__ )->fetchResultSet(); |
| 195 | |
| 196 | // @todo FIXME: Side link to previous |
| 197 | |
| 198 | if ( $res->numRows() > 0 ) { |
| 199 | $out = Html::openElement( 'ul', [ 'class' => 'mw-prefixindex-list' ] ); |
| 200 | |
| 201 | $prefixLength = strlen( $prefix ); |
| 202 | foreach ( $res as $row ) { |
| 203 | if ( $n >= $this->maxPerPage ) { |
| 204 | $nextRow = $row; |
| 205 | break; |
| 206 | } |
| 207 | $title = Title::newFromRow( $row ); |
| 208 | // Make sure it gets into LinkCache |
| 209 | $this->linkCache->addGoodLinkObjFromRow( $title, $row ); |
| 210 | $displayed = $title->getText(); |
| 211 | // Try not to generate unclickable links |
| 212 | if ( $this->stripPrefix && $prefixLength !== strlen( $displayed ) ) { |
| 213 | $displayed = substr( $displayed, $prefixLength ); |
| 214 | } |
| 215 | $link = ( $title->isRedirect() ? '<div class="allpagesredirect">' : '' ) . |
| 216 | $this->getLinkRenderer()->makeKnownLink( |
| 217 | $title, |
| 218 | $displayed |
| 219 | ) . |
| 220 | ( $title->isRedirect() ? '</div>' : '' ); |
| 221 | |
| 222 | $out .= "<li>$link</li>\n"; |
| 223 | $n++; |
| 224 | |
| 225 | } |
| 226 | $out .= Html::closeElement( 'ul' ); |
| 227 | |
| 228 | if ( $res->numRows() > 2 ) { |
| 229 | // Only apply CSS column styles if there are more than 2 entries. |
| 230 | // Otherwise, rendering is broken as "mw-prefixindex-body"'s CSS column count is 3. |
| 231 | $out = Html::rawElement( 'div', [ 'class' => 'mw-prefixindex-body' ], $out ); |
| 232 | } |
| 233 | } else { |
| 234 | $out = ''; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | $output = $this->getOutput(); |
| 239 | |
| 240 | if ( $this->including() ) { |
| 241 | // We don't show the nav-links and the form when included in other |
| 242 | // pages, so let's just finish here. |
| 243 | $output->addHTML( $out ); |
| 244 | return; |
| 245 | } |
| 246 | |
| 247 | $topOut = $preparedHtmlForm->getHTML( false ); |
| 248 | |
| 249 | if ( $res && ( $n == $this->maxPerPage ) && $nextRow ) { |
| 250 | $query = [ |
| 251 | 'from' => $nextRow->page_title, |
| 252 | 'prefix' => $prefix, |
| 253 | 'hideredirects' => $this->hideRedirects, |
| 254 | 'stripprefix' => $this->stripPrefix, |
| 255 | ]; |
| 256 | |
| 257 | if ( $namespace || $prefix == '' ) { |
| 258 | // Keep the namespace even if it's 0 for empty prefixes. |
| 259 | // This tells us we're not just a holdover from old links. |
| 260 | $query['namespace'] = $namespace; |
| 261 | } |
| 262 | |
| 263 | $nextLink = $this->getLinkRenderer()->makeKnownLink( |
| 264 | $this->getPageTitle(), |
| 265 | $this->msg( 'nextpage', str_replace( '_', ' ', $nextRow->page_title ) )->text(), |
| 266 | [], |
| 267 | $query |
| 268 | ); |
| 269 | |
| 270 | // Link shown at the top of the page below the form |
| 271 | $topOut .= Html::rawElement( 'div', |
| 272 | [ 'class' => 'mw-prefixindex-nav' ], |
| 273 | $nextLink |
| 274 | ); |
| 275 | |
| 276 | // Link shown at the footer |
| 277 | $out .= "\n" . Html::element( 'hr' ) . |
| 278 | Html::rawElement( |
| 279 | 'div', |
| 280 | [ 'class' => 'mw-prefixindex-nav' ], |
| 281 | $nextLink |
| 282 | ); |
| 283 | |
| 284 | } |
| 285 | |
| 286 | $output->addHTML( $topOut . $out ); |
| 287 | } |
| 288 | |
| 289 | /** @inheritDoc */ |
| 290 | protected function getGroupName() { |
| 291 | return 'pages'; |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | // @codeCoverageIgnoreStart |
| 296 | /** |
| 297 | * Retain the old class name for backwards compatibility. |
| 298 | * @deprecated since 1.41 |
| 299 | */ |
| 300 | class_alias( SpecialPrefixIndex::class, 'SpecialPrefixindex' ); |
| 301 | // @codeCoverageIgnoreEnd |