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| 1 | <?php |
| 2 | /** |
| 3 | * Content object for wiki text pages. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * @since 1.21 |
| 21 | * |
| 22 | * @file |
| 23 | * @ingroup Content |
| 24 | * |
| 25 | * @author Daniel Kinzler |
| 26 | */ |
| 27 | |
| 28 | use MediaWiki\Context\RequestContext; |
| 29 | use MediaWiki\HookContainer\HookRunner; |
| 30 | use MediaWiki\MainConfigNames; |
| 31 | use MediaWiki\MediaWikiServices; |
| 32 | use MediaWiki\Parser\MagicWord; |
| 33 | use MediaWiki\Title\Title; |
| 34 | |
| 35 | /** |
| 36 | * Content object for wiki text pages. |
| 37 | * |
| 38 | * @newable |
| 39 | * @ingroup Content |
| 40 | */ |
| 41 | class WikitextContent extends TextContent { |
| 42 | |
| 43 | /** |
| 44 | * @var string[] flags set by PST |
| 45 | */ |
| 46 | private $preSaveTransformFlags = []; |
| 47 | |
| 48 | /** |
| 49 | * @stable to call |
| 50 | * |
| 51 | * @param string $text |
| 52 | */ |
| 53 | public function __construct( $text ) { |
| 54 | parent::__construct( $text, CONTENT_MODEL_WIKITEXT ); |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * @param string|int $sectionId |
| 59 | * |
| 60 | * @return Content|false|null |
| 61 | * |
| 62 | * @see Content::getSection() |
| 63 | */ |
| 64 | public function getSection( $sectionId ) { |
| 65 | $text = $this->getText(); |
| 66 | $sect = MediaWikiServices::getInstance()->getParserFactory()->getInstance() |
| 67 | ->getSection( $text, $sectionId, false ); |
| 68 | |
| 69 | if ( $sect === false ) { |
| 70 | return false; |
| 71 | } else { |
| 72 | return new static( $sect ); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * @param string|int|null|false $sectionId |
| 78 | * @param Content $with New section content, must have the same content model as $this. |
| 79 | * @param string $sectionTitle |
| 80 | * @return Content |
| 81 | * |
| 82 | * @see Content::replaceSection() |
| 83 | */ |
| 84 | public function replaceSection( $sectionId, Content $with, $sectionTitle = '' ) { |
| 85 | // @phan-suppress-previous-line PhanParamSignatureMismatch False positive |
| 86 | $myModelId = $this->getModel(); |
| 87 | $sectionModelId = $with->getModel(); |
| 88 | |
| 89 | if ( $sectionModelId != $myModelId ) { |
| 90 | throw new InvalidArgumentException( "Incompatible content model for section: " . |
| 91 | "document uses $myModelId but " . |
| 92 | "section uses $sectionModelId." ); |
| 93 | } |
| 94 | /** @var self $with $oldtext */ |
| 95 | '@phan-var self $with'; |
| 96 | |
| 97 | $oldtext = $this->getText(); |
| 98 | $text = $with->getText(); |
| 99 | |
| 100 | if ( strval( $sectionId ) === '' ) { |
| 101 | return $with; # XXX: copy first? |
| 102 | } |
| 103 | |
| 104 | if ( $sectionId === 'new' ) { |
| 105 | # Inserting a new section |
| 106 | $subject = strval( $sectionTitle ) !== '' ? wfMessage( 'newsectionheaderdefaultlevel' ) |
| 107 | ->plaintextParams( $sectionTitle )->inContentLanguage()->text() . "\n\n" : ''; |
| 108 | $hookRunner = ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) ); |
| 109 | if ( $hookRunner->onPlaceNewSection( $this, $oldtext, $subject, $text ) ) { |
| 110 | $text = strlen( trim( $oldtext ) ) > 0 |
| 111 | ? "{$oldtext}\n\n{$subject}{$text}" |
| 112 | : "{$subject}{$text}"; |
| 113 | } |
| 114 | } else { |
| 115 | # Replacing an existing section; roll out the big guns |
| 116 | $text = MediaWikiServices::getInstance()->getParserFactory()->getInstance() |
| 117 | ->replaceSection( $oldtext, $sectionId, $text ); |
| 118 | } |
| 119 | |
| 120 | $newContent = new static( $text ); |
| 121 | |
| 122 | return $newContent; |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Returns a new WikitextContent object with the given section heading |
| 127 | * prepended. |
| 128 | * |
| 129 | * @param string $header |
| 130 | * |
| 131 | * @return Content |
| 132 | */ |
| 133 | public function addSectionHeader( $header ) { |
| 134 | $text = strval( $header ) !== '' ? wfMessage( 'newsectionheaderdefaultlevel' ) |
| 135 | ->plaintextParams( $header )->inContentLanguage()->text() . "\n\n" : ''; |
| 136 | $text .= $this->getText(); |
| 137 | |
| 138 | return new static( $text ); |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Extract the redirect target and the remaining text on the page. |
| 143 | * |
| 144 | * @since 1.23 |
| 145 | * @deprecated since 1.41, use WikitextContentHandler::getRedirectTargetAndText |
| 146 | * |
| 147 | * @return array List of two elements: Title|null and string. |
| 148 | */ |
| 149 | public function getRedirectTargetAndText() { |
| 150 | wfDeprecated( __METHOD__, '1.41' ); |
| 151 | |
| 152 | $handler = $this->getContentHandler(); |
| 153 | [ $target, $content ] = $handler->extractRedirectTargetAndText( $this ); |
| 154 | |
| 155 | return [ Title::castFromLinkTarget( $target ), $content->getText() ]; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Implement redirect extraction for wikitext. |
| 160 | * |
| 161 | * @return Title|null |
| 162 | * |
| 163 | * @see Content::getRedirectTarget |
| 164 | */ |
| 165 | public function getRedirectTarget() { |
| 166 | // TODO: The redirect target should be injected on construction. |
| 167 | // But that only works if the object is created by WikitextContentHandler. |
| 168 | |
| 169 | $handler = $this->getContentHandler(); |
| 170 | [ $target, ] = $handler->extractRedirectTargetAndText( $this ); |
| 171 | |
| 172 | return Title::castFromLinkTarget( $target ); |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * This implementation replaces the first link on the page with the given new target |
| 177 | * if this Content object is a redirect. Otherwise, this method returns $this. |
| 178 | * |
| 179 | * @since 1.21 |
| 180 | * |
| 181 | * @param Title $target |
| 182 | * |
| 183 | * @return Content |
| 184 | * |
| 185 | * @see Content::updateRedirect() |
| 186 | */ |
| 187 | public function updateRedirect( Title $target ) { |
| 188 | if ( !$this->isRedirect() ) { |
| 189 | return $this; |
| 190 | } |
| 191 | |
| 192 | # Fix the text |
| 193 | # Remember that redirect pages can have categories, templates, etc., |
| 194 | # so the regex has to be fairly general |
| 195 | $newText = preg_replace( '/ \[ \[ [^\]]* \] \] /x', |
| 196 | '[[' . $target->getFullText() . ']]', |
| 197 | $this->getText(), 1 ); |
| 198 | |
| 199 | return new static( $newText ); |
| 200 | } |
| 201 | |
| 202 | /** |
| 203 | * Returns true if this content is not a redirect, and this content's text |
| 204 | * is countable according to the criteria defined by $wgArticleCountMethod. |
| 205 | * |
| 206 | * @param bool|null $hasLinks If it is known whether this content contains |
| 207 | * links, provide this information here, to avoid redundant parsing to |
| 208 | * find out (default: null). |
| 209 | * @param Title|null $title Optional title, defaults to the title from the current main request. |
| 210 | * |
| 211 | * @return bool |
| 212 | */ |
| 213 | public function isCountable( $hasLinks = null, Title $title = null ) { |
| 214 | $articleCountMethod = MediaWikiServices::getInstance()->getMainConfig() |
| 215 | ->get( MainConfigNames::ArticleCountMethod ); |
| 216 | |
| 217 | if ( $this->isRedirect() ) { |
| 218 | return false; |
| 219 | } |
| 220 | |
| 221 | if ( $articleCountMethod === 'link' ) { |
| 222 | if ( $hasLinks === null ) { # not known, find out |
| 223 | // @TODO: require an injected title |
| 224 | if ( !$title ) { |
| 225 | $context = RequestContext::getMain(); |
| 226 | $title = $context->getTitle(); |
| 227 | } |
| 228 | $contentRenderer = MediaWikiServices::getInstance()->getContentRenderer(); |
| 229 | // @phan-suppress-next-line PhanTypeMismatchArgumentNullable getTitle does not return null here |
| 230 | $po = $contentRenderer->getParserOutput( $this, $title, null, null, false ); |
| 231 | $links = $po->getLinks(); |
| 232 | $hasLinks = $links !== []; |
| 233 | } |
| 234 | |
| 235 | return $hasLinks; |
| 236 | } |
| 237 | |
| 238 | return true; |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * @param int $maxlength |
| 243 | * @return string |
| 244 | */ |
| 245 | public function getTextForSummary( $maxlength = 250 ) { |
| 246 | $truncatedtext = parent::getTextForSummary( $maxlength ); |
| 247 | |
| 248 | # clean up unfinished links |
| 249 | # XXX: make this optional? wasn't there in autosummary, but required for |
| 250 | # deletion summary. |
| 251 | $truncatedtext = preg_replace( '/\[\[([^\]]*)\]?$/', '$1', $truncatedtext ); |
| 252 | |
| 253 | return $truncatedtext; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * This implementation calls $word->match() on the this TextContent object's text. |
| 258 | * |
| 259 | * @param MagicWord $word |
| 260 | * |
| 261 | * @return bool |
| 262 | * |
| 263 | * @see Content::matchMagicWord() |
| 264 | */ |
| 265 | public function matchMagicWord( MagicWord $word ) { |
| 266 | return $word->match( $this->getText() ); |
| 267 | } |
| 268 | |
| 269 | /** |
| 270 | * Records flags set by preSaveTransform |
| 271 | * @internal for use by WikitextContentHandler |
| 272 | * @param string[] $flags |
| 273 | */ |
| 274 | public function setPreSaveTransformFlags( array $flags ) { |
| 275 | $this->preSaveTransformFlags = $flags; |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * Records flags set by preSaveTransform |
| 280 | * @internal for use by WikitextContentHandler |
| 281 | * @return string[] |
| 282 | */ |
| 283 | public function getPreSaveTransformFlags() { |
| 284 | return $this->preSaveTransformFlags; |
| 285 | } |
| 286 | |
| 287 | public function getContentHandler(): WikitextContentHandler { |
| 288 | $handler = parent::getContentHandler(); |
| 289 | '@phan-var WikitextContentHandler $handler'; |
| 290 | return $handler; |
| 291 | } |
| 292 | } |