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| 1 | <?php |
| 2 | |
| 3 | namespace Flow; |
| 4 | |
| 5 | use Closure; |
| 6 | use Flow\Exception\FlowException; |
| 7 | use Flow\Model\UUID; |
| 8 | use LightnCandy\LightnCandy; |
| 9 | use LightnCandy\SafeString; |
| 10 | use MediaWiki\Html\Html; |
| 11 | use MediaWiki\MediaWikiServices; |
| 12 | use MediaWiki\Title\Title; |
| 13 | use MediaWiki\Utils\MWTimestamp; |
| 14 | use OOUI\IconWidget; |
| 15 | use RequestContext; |
| 16 | |
| 17 | class TemplateHelper { |
| 18 | |
| 19 | /** |
| 20 | * @var string |
| 21 | */ |
| 22 | protected $templateDir; |
| 23 | |
| 24 | /** |
| 25 | * @var callable[] |
| 26 | */ |
| 27 | protected $renderers; |
| 28 | |
| 29 | /** |
| 30 | * @var bool Always compile template files |
| 31 | */ |
| 32 | protected $forceRecompile = false; |
| 33 | |
| 34 | /** |
| 35 | * @param string $templateDir |
| 36 | * @param bool $forceRecompile |
| 37 | */ |
| 38 | public function __construct( $templateDir, $forceRecompile = false ) { |
| 39 | $this->templateDir = $templateDir; |
| 40 | $this->forceRecompile = $forceRecompile; |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * Constructs the location of the source handlebars template |
| 45 | * and the compiled php code that goes with it. |
| 46 | * |
| 47 | * @param string $templateName |
| 48 | * |
| 49 | * @return string[] |
| 50 | * @throws FlowException Disallows upwards directory traversal via $templateName |
| 51 | */ |
| 52 | public function getTemplateFilenames( $templateName ) { |
| 53 | // Prevent upwards directory traversal using same methods as Title::secureAndSplit, |
| 54 | // which is implemented in MediaWikiTitleCodec::splitTitleString. |
| 55 | if ( |
| 56 | strpos( $templateName, '.' ) !== false && |
| 57 | ( |
| 58 | $templateName === '.' || $templateName === '..' || |
| 59 | strpos( $templateName, './' ) === 0 || |
| 60 | strpos( $templateName, '../' ) === 0 || |
| 61 | strpos( $templateName, '/./' ) !== false || |
| 62 | strpos( $templateName, '/../' ) !== false || |
| 63 | substr( $templateName, -2 ) === '/.' || |
| 64 | substr( $templateName, -3 ) === '/..' |
| 65 | ) |
| 66 | ) { |
| 67 | throw new FlowException( "Malformed \$templateName: $templateName" ); |
| 68 | } |
| 69 | |
| 70 | return [ |
| 71 | 'template' => "{$this->templateDir}/{$templateName}.handlebars", |
| 72 | 'compiled' => "{$this->templateDir}/compiled/{$templateName}.handlebars.php", |
| 73 | ]; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Returns a given template function if found, otherwise throws an exception. |
| 78 | * |
| 79 | * @param string $templateName |
| 80 | * |
| 81 | * @return callable |
| 82 | * @throws FlowException |
| 83 | * @throws \Exception |
| 84 | */ |
| 85 | public function getTemplate( $templateName ) { |
| 86 | if ( isset( $this->renderers[$templateName] ) ) { |
| 87 | return $this->renderers[$templateName]; |
| 88 | } |
| 89 | |
| 90 | $filenames = $this->getTemplateFilenames( $templateName ); |
| 91 | |
| 92 | if ( $this->forceRecompile ) { |
| 93 | if ( !file_exists( $filenames['template'] ) ) { |
| 94 | throw new FlowException( "Could not locate template: {$filenames['template']}" ); |
| 95 | } |
| 96 | |
| 97 | $code = self::compile( file_get_contents( $filenames['template'] ), $this->templateDir ); |
| 98 | |
| 99 | if ( !$code ) { |
| 100 | throw new FlowException( "Failed to compile template '$templateName'." ); |
| 101 | } |
| 102 | $success = file_put_contents( $filenames['compiled'], '<?php ' . $code ); |
| 103 | |
| 104 | // failed to recompile template (OS permissions?); unless the |
| 105 | // content hasn't changes, throw an exception! |
| 106 | if ( !$success && file_get_contents( $filenames['compiled'] ) !== $code ) { |
| 107 | throw new FlowException( "Failed to save updated compiled template '$templateName'" ); |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | /** @var callable $renderer */ |
| 112 | $renderer = require $filenames['compiled']; |
| 113 | $this->renderers[$templateName] = static function ( $args, array $scopes = [] ) use ( $templateName, $renderer ) { |
| 114 | return $renderer( $args, $scopes ); |
| 115 | }; |
| 116 | return $this->renderers[$templateName]; |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * @param string $code Handlebars code |
| 121 | * @param string $templateDir Directory templates are stored in |
| 122 | * |
| 123 | * @return string PHP code |
| 124 | * @suppress PhanTypeMismatchArgument |
| 125 | */ |
| 126 | public static function compile( $code, $templateDir ) { |
| 127 | return LightnCandy::compile( |
| 128 | $code, |
| 129 | [ |
| 130 | 'flags' => LightnCandy::FLAG_ERROR_EXCEPTION |
| 131 | | LightnCandy::FLAG_EXTHELPER |
| 132 | | LightnCandy::FLAG_SPVARS |
| 133 | | LightnCandy::FLAG_HANDLEBARS |
| 134 | | LightnCandy::FLAG_RUNTIMEPARTIAL, |
| 135 | 'partialresolver' => static function ( $context, $name ) use ( $templateDir ) { |
| 136 | $filename = "$templateDir/$name.partial.handlebars"; |
| 137 | if ( file_exists( $filename ) ) { |
| 138 | return file_get_contents( $filename ); |
| 139 | } |
| 140 | return null; |
| 141 | }, |
| 142 | 'helpers' => [ |
| 143 | 'l10n' => 'Flow\TemplateHelper::l10n', |
| 144 | 'uuidTimestamp' => 'Flow\TemplateHelper::uuidTimestamp', |
| 145 | 'timestamp' => 'Flow\TemplateHelper::timestampHelper', |
| 146 | 'html' => 'Flow\TemplateHelper::htmlHelper', |
| 147 | 'block' => 'Flow\TemplateHelper::block', |
| 148 | 'post' => 'Flow\TemplateHelper::post', |
| 149 | 'historyTimestamp' => 'Flow\TemplateHelper::historyTimestamp', |
| 150 | 'historyDescription' => 'Flow\TemplateHelper::historyDescription', |
| 151 | 'showCharacterDifference' => 'Flow\TemplateHelper::showCharacterDifference', |
| 152 | 'l10nParse' => 'Flow\TemplateHelper::l10nParse', |
| 153 | 'l10nParseFlowTermsOfUse' => 'Flow\TemplateHelper::l10nParseFlowTermsOfUse', |
| 154 | 'diffRevision' => 'Flow\TemplateHelper::diffRevision', |
| 155 | 'diffUndo' => 'Flow\TemplateHelper::diffUndo', |
| 156 | 'moderationAction' => 'Flow\TemplateHelper::moderationAction', |
| 157 | 'concat' => 'Flow\TemplateHelper::concat', |
| 158 | 'linkWithReturnTo' => 'Flow\TemplateHelper::linkWithReturnTo', |
| 159 | 'escapeContent' => 'Flow\TemplateHelper::escapeContent', |
| 160 | 'enablePatrollingLink' => 'Flow\TemplateHelper::enablePatrollingLink', |
| 161 | 'oouify' => 'Flow\TemplateHelper::oouify', |
| 162 | 'getSaveOrPublishMessage' => 'Flow\TemplateHelper::getSaveOrPublishMessage', |
| 163 | 'eachPost' => 'Flow\TemplateHelper::eachPost', |
| 164 | 'ifAnonymous' => 'Flow\TemplateHelper::ifAnonymous', |
| 165 | 'ifCond' => 'Flow\TemplateHelper::ifCond', |
| 166 | 'tooltip' => 'Flow\TemplateHelper::tooltip', |
| 167 | 'progressiveEnhancement' => 'Flow\TemplateHelper::progressiveEnhancement', |
| 168 | ], |
| 169 | ] |
| 170 | ); |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Returns HTML for a given template by calling the template function with the given args. |
| 175 | * |
| 176 | * @param string $templateName |
| 177 | * @param array $args |
| 178 | * @param array $scopes |
| 179 | * |
| 180 | * @return string |
| 181 | */ |
| 182 | public static function processTemplate( $templateName, array $args, array $scopes = [] ) { |
| 183 | // Undesirable, but lightncandy helpers have to be static methods |
| 184 | /** @var TemplateHelper $lightncandy */ |
| 185 | $lightncandy = Container::get( 'lightncandy' ); |
| 186 | $template = $lightncandy->getTemplate( $templateName ); |
| 187 | // @todo ugly hack...remove someday. Requires switching to newest version |
| 188 | // of lightncandy which supports recursive partial templates. |
| 189 | if ( !array_key_exists( 'rootBlock', $args ) ) { |
| 190 | $args['rootBlock'] = $args; |
| 191 | } |
| 192 | return $template( $args, $scopes ); |
| 193 | } |
| 194 | |
| 195 | // Helpers |
| 196 | |
| 197 | /** |
| 198 | * Generates a timestamp using the UUID, then calls the timestamp helper with it. |
| 199 | * |
| 200 | * @param string $uuid |
| 201 | * |
| 202 | * @return SafeString|null |
| 203 | */ |
| 204 | public static function uuidTimestamp( $uuid ) { |
| 205 | $obj = UUID::create( $uuid ); |
| 206 | if ( !$obj ) { |
| 207 | return null; |
| 208 | } |
| 209 | |
| 210 | // timestamp helper expects ms timestamp |
| 211 | $timestamp = (int)$obj->getTimestampObj()->getTimestamp() * 1000; |
| 212 | return self::timestamp( $timestamp ); |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * @param string $timestamp |
| 217 | * |
| 218 | * @return SafeString|null |
| 219 | */ |
| 220 | public static function timestampHelper( $timestamp ) { |
| 221 | return self::timestamp( (int)$timestamp ); |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * @param int $timestamp milliseconds since the unix epoch |
| 226 | * |
| 227 | * @return SafeString|null |
| 228 | */ |
| 229 | protected static function timestamp( $timestamp ) { |
| 230 | global $wgLang; |
| 231 | |
| 232 | if ( !$timestamp ) { |
| 233 | return null; |
| 234 | } |
| 235 | |
| 236 | // source timestamps are in ms |
| 237 | $timestamp /= 1000; |
| 238 | $ts = new MWTimestamp( $timestamp ); |
| 239 | |
| 240 | return new SafeString( self::processTemplate( |
| 241 | 'timestamp', |
| 242 | [ |
| 243 | 'time_iso' => $timestamp, |
| 244 | 'time_ago' => $wgLang->getHumanTimestamp( $ts ), |
| 245 | 'time_readable' => $wgLang->userTimeAndDate( |
| 246 | $timestamp, |
| 247 | RequestContext::getMain()->getUser() |
| 248 | ), |
| 249 | 'guid' => null, // generated client-side |
| 250 | ] |
| 251 | ) ); |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * @param string $html |
| 256 | * |
| 257 | * @return SafeString |
| 258 | */ |
| 259 | public static function htmlHelper( $html ) { |
| 260 | return new SafeString( $html ?? 'undefined' ); |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * @param array $block |
| 265 | * |
| 266 | * @return SafeString |
| 267 | */ |
| 268 | public static function block( $block ) { |
| 269 | $template = "flow_block_" . $block['type']; |
| 270 | if ( $block['block-action-template'] ) { |
| 271 | $template .= '_' . $block['block-action-template']; |
| 272 | } |
| 273 | return new SafeString( self::processTemplate( |
| 274 | $template, |
| 275 | $block |
| 276 | ) ); |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * @param array $context The 'this' value of the calling context |
| 281 | * @param mixed $postIds List of ids (roots) |
| 282 | * @param array $options blockhelper specific invocation options |
| 283 | * |
| 284 | * @return null|string HTML |
| 285 | * @throws FlowException When callbacks are not Closure instances |
| 286 | */ |
| 287 | public static function eachPost( array $context, $postIds, array $options ) { |
| 288 | /** @var callable $inverse */ |
| 289 | $inverse = $options['inverse'] ?? null; |
| 290 | /** @var callable $fn */ |
| 291 | $fn = $options['fn']; |
| 292 | |
| 293 | if ( $postIds && !is_array( $postIds ) ) { |
| 294 | $postIds = [ $postIds ]; |
| 295 | } elseif ( $postIds === [] ) { |
| 296 | // Failure callback, if any |
| 297 | if ( !$inverse ) { |
| 298 | return null; |
| 299 | } |
| 300 | if ( !$inverse instanceof Closure ) { |
| 301 | throw new FlowException( 'Invalid inverse callback, expected Closure' ); |
| 302 | } |
| 303 | return $inverse( $options['cx'], [] ); |
| 304 | } else { |
| 305 | return null; |
| 306 | } |
| 307 | |
| 308 | if ( !$fn instanceof Closure ) { |
| 309 | throw new FlowException( 'Invalid callback, expected Closure' ); |
| 310 | } |
| 311 | $html = []; |
| 312 | foreach ( $postIds as $id ) { |
| 313 | $revId = $context['posts'][$id][0] ?? ''; |
| 314 | |
| 315 | if ( !$revId || !isset( $context['revisions'][$revId] ) ) { |
| 316 | throw new FlowException( "Revision not available: $revId. Post ID: $id" ); |
| 317 | } |
| 318 | |
| 319 | // $fn is always safe return value, it's the inner template content. |
| 320 | $html[] = $fn( $context['revisions'][$revId] ); |
| 321 | } |
| 322 | |
| 323 | // Return the resulting HTML |
| 324 | return implode( '', $html ); |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * Required to prevent recursion loop rendering nested posts |
| 329 | * |
| 330 | * @param array $rootBlock |
| 331 | * @param array $revision |
| 332 | * |
| 333 | * @return SafeString |
| 334 | */ |
| 335 | public static function post( $rootBlock, $revision ) { |
| 336 | return new SafeString( self::processTemplate( 'flow_post', [ |
| 337 | 'revision' => $revision, |
| 338 | 'rootBlock' => $rootBlock, |
| 339 | ] ) ); |
| 340 | } |
| 341 | |
| 342 | /** |
| 343 | * @param array $revision |
| 344 | * |
| 345 | * @return SafeString |
| 346 | */ |
| 347 | public static function historyTimestamp( $revision ) { |
| 348 | $raw = false; |
| 349 | $formattedTime = $revision['dateFormats']['timeAndDate']; |
| 350 | $formattedTimeOutput = ''; |
| 351 | $linkKeys = [ 'header-revision', 'topic-revision', 'post-revision', 'summary-revision' ]; |
| 352 | foreach ( $linkKeys as $linkKey ) { |
| 353 | if ( isset( $revision['links'][$linkKey] ) ) { |
| 354 | $link = $revision['links'][$linkKey]; |
| 355 | $formattedTimeOutput = Html::element( |
| 356 | 'a', |
| 357 | [ |
| 358 | 'href' => $link['url'], |
| 359 | 'title' => $link['title'], |
| 360 | ], |
| 361 | $formattedTime |
| 362 | ); |
| 363 | $raw = true; |
| 364 | break; |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | if ( !$raw ) { |
| 369 | $formattedTimeOutput = htmlspecialchars( $formattedTime ); |
| 370 | } |
| 371 | |
| 372 | $class = [ 'mw-changeslist-date' ]; |
| 373 | if ( $revision['isModeratedNotLocked'] ) { |
| 374 | $class[] = 'history-deleted'; |
| 375 | } |
| 376 | |
| 377 | return new SafeString( |
| 378 | '<span class="plainlinks">' |
| 379 | . Html::rawElement( 'span', [ 'class' => $class ], $formattedTimeOutput ) |
| 380 | . '</span>' |
| 381 | ); |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * @param array $revision |
| 386 | * |
| 387 | * @return SafeString|null |
| 388 | */ |
| 389 | public static function historyDescription( $revision ) { |
| 390 | if ( !isset( $revision['properties']['_key'] ) ) { |
| 391 | return null; |
| 392 | } |
| 393 | |
| 394 | $i18nKey = $revision['properties']['_key']; |
| 395 | unset( $revision['properties']['_key'] ); |
| 396 | |
| 397 | // $revision['properties'] contains the params for the i18n message, which are named, |
| 398 | // so we need array_values() to strip the names. They are in the correct order because |
| 399 | // RevisionFormatter::getDescriptionParams() uses a foreach loop to build this array |
| 400 | // from the i18n-params definition in FlowActions.php. |
| 401 | // A variety of the i18n history messages contain wikitext and require ->parse(). |
| 402 | return new SafeString( wfMessage( $i18nKey, array_values( $revision['properties'] ) )->parse() ); |
| 403 | } |
| 404 | |
| 405 | /** |
| 406 | * @param string $old |
| 407 | * @param string $new |
| 408 | * |
| 409 | * @return SafeString |
| 410 | */ |
| 411 | public static function showCharacterDifference( $old, $new ) { |
| 412 | return new SafeString( \ChangesList::showCharacterDifference( (int)$old, (int)$new ) ); |
| 413 | } |
| 414 | |
| 415 | /** |
| 416 | * Creates a special script tag to be processed client-side. This contains extra template HTML, which allows |
| 417 | * the front-end to "progressively enhance" the page with more content which isn't needed in a non-JS state. |
| 418 | * |
| 419 | * @see FlowHandlebars.prototype.progressiveEnhancement in flow-handlebars.js for more details. |
| 420 | * |
| 421 | * @param array $options |
| 422 | * |
| 423 | * @return SafeString |
| 424 | */ |
| 425 | public static function progressiveEnhancement( array $options ) { |
| 426 | $fn = $options['fn']; |
| 427 | $input = $options['hash']; |
| 428 | $insertionType = empty( $input['type'] ) ? 'insert' : htmlspecialchars( $input['type'] ); |
| 429 | $target = empty( $input['target'] ) ? '' : 'data-target="' . htmlspecialchars( $input['target'] ) . '"'; |
| 430 | $sectionId = empty( $input['id'] ) ? '' : 'id="' . htmlspecialchars( $input['id'] ) . '"'; |
| 431 | |
| 432 | return new SafeString( |
| 433 | '<script name="handlebars-template-progressive-enhancement"' . |
| 434 | ' type="text/x-handlebars-template-progressive-enhancement"' . |
| 435 | ' data-type="' . $insertionType . '"' . |
| 436 | ' ' . $target . |
| 437 | ' ' . $sectionId . |
| 438 | '>' . |
| 439 | // Replace the nested script tag with a placeholder tag for recursive progressiveEnhancement |
| 440 | str_replace( '</script>', '</flowprogressivescript>', $fn() ) . |
| 441 | '</script>' |
| 442 | ); |
| 443 | } |
| 444 | |
| 445 | /** |
| 446 | * A helper to output OOUI widgets. |
| 447 | * |
| 448 | * @param array ...$args one or more arguments, i18n key and parameters |
| 449 | * @return \OOUI\Widget|null |
| 450 | */ |
| 451 | public static function oouify( ...$args ) { |
| 452 | $options = array_pop( $args ); |
| 453 | // @phan-suppress-next-line PhanTypeArraySuspiciousNullable Only when $args is empty |
| 454 | $named = $options['hash']; |
| 455 | |
| 456 | $widgetType = $named[ 'type' ]; |
| 457 | $data = []; |
| 458 | |
| 459 | $classes = []; |
| 460 | if ( isset( $named['classes'] ) ) { |
| 461 | $classes = explode( ' ', $named[ 'classes' ] ); |
| 462 | } |
| 463 | |
| 464 | // Push raw arguments |
| 465 | $data['args'] = $args; |
| 466 | $baseConfig = [ |
| 467 | // 'infusable' => true, |
| 468 | 'id' => $named[ 'name' ] ?? null, |
| 469 | 'classes' => $classes, |
| 470 | 'data' => $data |
| 471 | ]; |
| 472 | $widget = null; |
| 473 | switch ( $widgetType ) { |
| 474 | case 'BoardDescriptionWidget': |
| 475 | $dataArgs = [ |
| 476 | 'infusable' => false, |
| 477 | 'description' => $args[0], |
| 478 | 'editLink' => $args[1] |
| 479 | ]; |
| 480 | $widget = new OOUI\BoardDescriptionWidget( $baseConfig + $dataArgs ); |
| 481 | break; |
| 482 | case 'IconWidget': |
| 483 | $dataArgs = [ |
| 484 | 'icon' => $args[0], |
| 485 | ]; |
| 486 | $widget = new IconWidget( $baseConfig + $dataArgs ); |
| 487 | break; |
| 488 | } |
| 489 | |
| 490 | return $widget; |
| 491 | } |
| 492 | |
| 493 | /** |
| 494 | * @param array ...$args one or more arguments, i18n key and parameters |
| 495 | * |
| 496 | * @return string Message output, using the 'text' format |
| 497 | */ |
| 498 | public static function l10n( ...$args ) { |
| 499 | $options = array_pop( $args ); |
| 500 | $str = array_shift( $args ); |
| 501 | |
| 502 | return wfMessage( $str )->params( $args )->text(); |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * @param array ...$args one or more arguments, i18n key and parameters |
| 507 | * |
| 508 | * @return SafeString HTML |
| 509 | */ |
| 510 | public static function l10nParse( ...$args ) { |
| 511 | $options = array_pop( $args ); |
| 512 | $str = array_shift( $args ); |
| 513 | return new SafeString( wfMessage( $str, $args )->parse() ); |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * @param string $key |
| 518 | * |
| 519 | * @return SafeString HTML |
| 520 | */ |
| 521 | public static function l10nParseFlowTermsOfUse( $key ) { |
| 522 | $context = RequestContext::getMain(); |
| 523 | $config = MediaWikiServices::getInstance()->getMainConfig(); |
| 524 | $messages = Hooks::getTermsOfUseMessagesParsed( $context, $config ); |
| 525 | return new SafeString( $messages[ $key ] ); |
| 526 | } |
| 527 | |
| 528 | /** |
| 529 | * A helper to output whether a wiki is publish wiki or not |
| 530 | * |
| 531 | * @param array $options |
| 532 | * @return string Translated message string for either 'save' or 'publish' |
| 533 | * version |
| 534 | */ |
| 535 | public static function getSaveOrPublishMessage( array $options ) { |
| 536 | global $wgEditSubmitButtonLabelPublish; |
| 537 | $named = $options['hash']; |
| 538 | |
| 539 | if ( !$named['save'] || !$named['publish'] ) { |
| 540 | throw new FlowException( "Missing an argument. Expected two message keys for 'save' and 'post'" ); |
| 541 | } |
| 542 | |
| 543 | $msg = $wgEditSubmitButtonLabelPublish ? $named['publish'] : $named['save']; |
| 544 | |
| 545 | return wfMessage( $msg )->text(); |
| 546 | } |
| 547 | |
| 548 | /** |
| 549 | * @param array $data RevisionDiffViewFormatter::formatApi return value |
| 550 | * |
| 551 | * @return SafeString |
| 552 | */ |
| 553 | public static function diffRevision( $data ) { |
| 554 | $differenceEngine = new \DifferenceEngine(); |
| 555 | $notice = ''; |
| 556 | if ( $data['diff_content'] === '' ) { |
| 557 | $notice .= '<div class="mw-diff-empty">' . |
| 558 | wfMessage( 'diff-empty' )->parse() . |
| 559 | "</div>\n"; |
| 560 | } |
| 561 | // Work around exception in DifferenceEngine::showDiffStyle() (T202454) |
| 562 | $out = RequestContext::getMain()->getOutput(); |
| 563 | $out->addModules( 'mediawiki.diff' ); |
| 564 | $out->addModuleStyles( 'mediawiki.diff.styles' ); |
| 565 | |
| 566 | $renderer = Container::get( 'lightncandy' )->getTemplate( 'flow_revision_diff_header' ); |
| 567 | |
| 568 | return new SafeString( $differenceEngine->addHeader( |
| 569 | $data['diff_content'], |
| 570 | $renderer( [ |
| 571 | 'old' => true, |
| 572 | 'revision' => $data['old'], |
| 573 | 'links' => $data['links'], |
| 574 | ] ), |
| 575 | $renderer( [ |
| 576 | 'new' => true, |
| 577 | 'revision' => $data['new'], |
| 578 | 'links' => $data['links'], |
| 579 | ] ), |
| 580 | // FIXME we should be passing in a multinotice for multi-rev diffs here |
| 581 | '', |
| 582 | $notice |
| 583 | ) ); |
| 584 | } |
| 585 | |
| 586 | public static function diffUndo( $diffContent ) { |
| 587 | $differenceEngine = new \DifferenceEngine(); |
| 588 | $notice = ''; |
| 589 | if ( $diffContent === '' ) { |
| 590 | $notice = '<div class="mw-diff-empty">' . |
| 591 | wfMessage( 'diff-empty' )->parse() . |
| 592 | "</div>\n"; |
| 593 | } |
| 594 | // Work around exception in DifferenceEngine::showDiffStyle() (T202454) |
| 595 | $out = RequestContext::getMain()->getOutput(); |
| 596 | $out->addModules( 'mediawiki.diff' ); |
| 597 | $out->addModuleStyles( 'mediawiki.diff.styles' ); |
| 598 | |
| 599 | return new SafeString( $differenceEngine->addHeader( |
| 600 | $diffContent, |
| 601 | wfMessage( 'flow-undo-latest-revision' )->parse(), |
| 602 | wfMessage( 'flow-undo-your-text' )->parse(), |
| 603 | // FIXME we should be passing in a multinotice for multi-rev diffs here |
| 604 | '', |
| 605 | $notice |
| 606 | ) ); |
| 607 | } |
| 608 | |
| 609 | /** |
| 610 | * @param array $actions |
| 611 | * @param string $moderationState |
| 612 | * |
| 613 | * @return string |
| 614 | */ |
| 615 | public static function moderationAction( $actions, $moderationState ) { |
| 616 | return isset( $actions[$moderationState] ) ? $actions[$moderationState]['url'] : ''; |
| 617 | } |
| 618 | |
| 619 | /** |
| 620 | * @param string ...$args Expects one or more strings to join |
| 621 | * |
| 622 | * @return string all unnamed arguments joined together |
| 623 | */ |
| 624 | public static function concat( ...$args ) { |
| 625 | $options = array_pop( $args ); |
| 626 | return implode( '', $args ); |
| 627 | } |
| 628 | |
| 629 | /** |
| 630 | * Runs a callback when user is anonymous |
| 631 | * |
| 632 | * @param array $options which must contain fn and inverse key mapping to functions. |
| 633 | * |
| 634 | * @return mixed result of callback |
| 635 | * @throws FlowException Fails when callbacks are not Closure instances |
| 636 | */ |
| 637 | public static function ifAnonymous( $options ) { |
| 638 | if ( !RequestContext::getMain()->getUser()->isRegistered() ) { |
| 639 | $fn = $options['fn']; |
| 640 | if ( !$fn instanceof Closure ) { |
| 641 | throw new FlowException( 'Expected callback to be Closuire instance' ); |
| 642 | } |
| 643 | } elseif ( isset( $options['inverse'] ) ) { |
| 644 | $fn = $options['inverse']; |
| 645 | if ( !$fn instanceof Closure ) { |
| 646 | throw new FlowException( 'Expected inverse callback to be Closuire instance' ); |
| 647 | } |
| 648 | } else { |
| 649 | return ''; |
| 650 | } |
| 651 | |
| 652 | return $fn(); |
| 653 | } |
| 654 | |
| 655 | /** |
| 656 | * Adds returnto parameter pointing to current page to existing URL |
| 657 | * |
| 658 | * @param string $url to modify |
| 659 | * |
| 660 | * @return string modified url |
| 661 | */ |
| 662 | protected static function addReturnTo( $url ) { |
| 663 | $ctx = RequestContext::getMain(); |
| 664 | $returnTo = $ctx->getTitle(); |
| 665 | if ( !$returnTo ) { |
| 666 | return $url; |
| 667 | } |
| 668 | // We can't get only the query parameters from |
| 669 | $returnToQuery = $ctx->getRequest()->getQueryValues(); |
| 670 | |
| 671 | unset( $returnToQuery['title'] ); |
| 672 | |
| 673 | $args = [ |
| 674 | 'returnto' => $returnTo->getPrefixedURL(), |
| 675 | ]; |
| 676 | if ( $returnToQuery ) { |
| 677 | $args['returntoquery'] = wfArrayToCgi( $returnToQuery ); |
| 678 | } |
| 679 | return wfAppendQuery( $url, wfArrayToCgi( $args ) ); |
| 680 | } |
| 681 | |
| 682 | /** |
| 683 | * Adds returnto parameter pointing to given Title to an existing URL |
| 684 | * |
| 685 | * @param string $title |
| 686 | * |
| 687 | * @return string modified url |
| 688 | */ |
| 689 | public static function linkWithReturnTo( $title ) { |
| 690 | $title = Title::newFromText( $title ); |
| 691 | if ( !$title ) { |
| 692 | return ''; |
| 693 | } |
| 694 | // FIXME: This should use local url to avoid redirects on mobile. See bug 66746. |
| 695 | $url = $title->getFullURL(); |
| 696 | |
| 697 | return self::addReturnTo( $url ); |
| 698 | } |
| 699 | |
| 700 | /** |
| 701 | * Accepts the contentType and content properties returned from the api |
| 702 | * for individual revisions and ensures that content is included in the |
| 703 | * final html page in an xss safe maner. |
| 704 | * |
| 705 | * It is expected that all content with contentType of html has been |
| 706 | * processed by parsoid and is safe for direct output into the document. |
| 707 | * |
| 708 | * @param string $contentType |
| 709 | * @param string $content |
| 710 | * |
| 711 | * @return string|SafeString |
| 712 | */ |
| 713 | public static function escapeContent( $contentType, $content ) { |
| 714 | return in_array( $contentType, [ 'html', 'fixed-html', 'topic-title-html' ] ) ? |
| 715 | new SafeString( $content ) : |
| 716 | $content; |
| 717 | } |
| 718 | |
| 719 | /** |
| 720 | * Only perform action when conditions match |
| 721 | * |
| 722 | * @param string $value |
| 723 | * @param string $operator e.g. 'or' |
| 724 | * @param string $value2 to compare with |
| 725 | * @param array $options lightncandy hbhelper options |
| 726 | * |
| 727 | * @return mixed result of callback |
| 728 | * @throws FlowException Fails when callbacks are not Closure instances |
| 729 | */ |
| 730 | public static function ifCond( $value, $operator, $value2, array $options ) { |
| 731 | $doCallback = false; |
| 732 | |
| 733 | // Perform operator |
| 734 | // FIXME: Rename to || to be consistent with other operators |
| 735 | if ( $operator === 'or' ) { |
| 736 | if ( $value || $value2 ) { |
| 737 | $doCallback = true; |
| 738 | } |
| 739 | } elseif ( $operator === '===' ) { |
| 740 | if ( $value === $value2 ) { |
| 741 | $doCallback = true; |
| 742 | } |
| 743 | } elseif ( $operator === '!==' ) { |
| 744 | if ( $value !== $value2 ) { |
| 745 | $doCallback = true; |
| 746 | } |
| 747 | } else { |
| 748 | return ''; |
| 749 | } |
| 750 | |
| 751 | if ( $doCallback ) { |
| 752 | $fn = $options['fn']; |
| 753 | if ( !$fn instanceof Closure ) { |
| 754 | throw new FlowException( 'Expected callback to be Closure instance' ); |
| 755 | } |
| 756 | return $fn(); |
| 757 | } elseif ( isset( $options['inverse'] ) ) { |
| 758 | $inverse = $options['inverse']; |
| 759 | if ( !$inverse instanceof Closure ) { |
| 760 | throw new FlowException( 'Expected inverse callback to be Closure instance' ); |
| 761 | } |
| 762 | return $inverse(); |
| 763 | } else { |
| 764 | return ''; |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | /** |
| 769 | * @param array $options |
| 770 | * |
| 771 | * @return string tooltip |
| 772 | */ |
| 773 | public static function tooltip( $options ) { |
| 774 | $fn = $options['fn']; |
| 775 | $params = $options['hash']; |
| 776 | |
| 777 | return ( |
| 778 | self::processTemplate( 'flow_tooltip', [ |
| 779 | 'positionClass' => $params['positionClass'] ? 'flow-ui-tooltip-' . $params['positionClass'] : null, |
| 780 | 'contextClass' => $params['contextClass'] ? 'mw-ui-' . $params['contextClass'] : null, |
| 781 | 'extraClass' => $params['extraClass'] ?: '', |
| 782 | 'blockClass' => $params['isBlock'] ? 'flow-ui-tooltip-block' : null, |
| 783 | 'content' => $fn(), |
| 784 | ] ) |
| 785 | ); |
| 786 | } |
| 787 | |
| 788 | /** |
| 789 | * Enhance the patrolling link and protect it. |
| 790 | */ |
| 791 | public static function enablePatrollingLink() { |
| 792 | $outputPage = RequestContext::getMain()->getOutput(); |
| 793 | |
| 794 | // Enhance the patrol link with ajax |
| 795 | // FIXME: This duplicates DifferenceEngine::markPatrolledLink. |
| 796 | $outputPage->setPreventClickjacking( true ); |
| 797 | $outputPage->addModules( 'mediawiki.misc-authed-curate' ); |
| 798 | } |
| 799 | } |