MediaWiki  master
Html.php
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1 <?php
28 
51 class Html {
53  private static $voidElements = [
54  'area' => true,
55  'base' => true,
56  'br' => true,
57  'col' => true,
58  'embed' => true,
59  'hr' => true,
60  'img' => true,
61  'input' => true,
62  'keygen' => true,
63  'link' => true,
64  'meta' => true,
65  'param' => true,
66  'source' => true,
67  'track' => true,
68  'wbr' => true,
69  ];
70 
76  private static $boolAttribs = [
77  'async' => true,
78  'autofocus' => true,
79  'autoplay' => true,
80  'checked' => true,
81  'controls' => true,
82  'default' => true,
83  'defer' => true,
84  'disabled' => true,
85  'formnovalidate' => true,
86  'hidden' => true,
87  'ismap' => true,
88  'itemscope' => true,
89  'loop' => true,
90  'multiple' => true,
91  'muted' => true,
92  'novalidate' => true,
93  'open' => true,
94  'pubdate' => true,
95  'readonly' => true,
96  'required' => true,
97  'reversed' => true,
98  'scoped' => true,
99  'seamless' => true,
100  'selected' => true,
101  'truespeed' => true,
102  'typemustmatch' => true,
103  ];
104 
113  public static function buttonAttributes( array $attrs, array $modifiers = [] ) {
114  $useMediaWikiUIEverywhere = MediaWikiServices::getInstance()
115  ->getMainConfig()->get( MainConfigNames::UseMediaWikiUIEverywhere );
116  if ( $useMediaWikiUIEverywhere ) {
117  if ( isset( $attrs['class'] ) ) {
118  if ( is_array( $attrs['class'] ) ) {
119  $attrs['class'][] = 'mw-ui-button';
120  $attrs['class'] = array_merge( $attrs['class'], $modifiers );
121  // ensure compatibility with Xml
122  $attrs['class'] = implode( ' ', $attrs['class'] );
123  } else {
124  $attrs['class'] .= ' mw-ui-button ' . implode( ' ', $modifiers );
125  }
126  } else {
127  // ensure compatibility with Xml
128  $attrs['class'] = 'mw-ui-button ' . implode( ' ', $modifiers );
129  }
130  }
131  return $attrs;
132  }
133 
141  public static function getTextInputAttributes( array $attrs ) {
142  $useMediaWikiUIEverywhere = MediaWikiServices::getInstance()
143  ->getMainConfig()->get( MainConfigNames::UseMediaWikiUIEverywhere );
144  if ( $useMediaWikiUIEverywhere ) {
145  if ( isset( $attrs['class'] ) ) {
146  if ( is_array( $attrs['class'] ) ) {
147  $attrs['class'][] = 'mw-ui-input';
148  } else {
149  $attrs['class'] .= ' mw-ui-input';
150  }
151  } else {
152  $attrs['class'] = 'mw-ui-input';
153  }
154  }
155  return $attrs;
156  }
157 
170  public static function linkButton( $text, array $attrs, array $modifiers = [] ) {
171  return self::element( 'a',
172  self::buttonAttributes( $attrs, $modifiers ),
173  $text
174  );
175  }
176 
190  public static function submitButton( $contents, array $attrs, array $modifiers = [] ) {
191  $attrs['type'] = 'submit';
192  $attrs['value'] = $contents;
193  return self::element( 'input', self::buttonAttributes( $attrs, $modifiers ) );
194  }
195 
214  public static function rawElement( $element, $attribs = [], $contents = '' ) {
215  $start = self::openElement( $element, $attribs );
216  if ( isset( self::$voidElements[$element] ) ) {
217  // Silly XML.
218  return substr( $start, 0, -1 ) . '/>';
219  } else {
220  return $start . $contents . self::closeElement( $element );
221  }
222  }
223 
236  public static function element( $element, $attribs = [], $contents = '' ) {
237  return self::rawElement( $element, $attribs, strtr( $contents ?? '', [
238  // There's no point in escaping quotes, >, etc. in the contents of
239  // elements.
240  '&' => '&amp;',
241  '<' => '&lt;'
242  ] ) );
243  }
244 
256  public static function openElement( $element, $attribs = [] ) {
257  $attribs = (array)$attribs;
258  // This is not required in HTML5, but let's do it anyway, for
259  // consistency and better compression.
260  $element = strtolower( $element );
261 
262  // Some people were abusing this by passing things like
263  // 'h1 id="foo" to $element, which we don't want.
264  if ( strpos( $element, ' ' ) !== false ) {
265  wfWarn( __METHOD__ . " given element name with space '$element'" );
266  }
267 
268  // Remove invalid input types
269  if ( $element == 'input' ) {
270  $validTypes = [
271  'hidden' => true,
272  'text' => true,
273  'password' => true,
274  'checkbox' => true,
275  'radio' => true,
276  'file' => true,
277  'submit' => true,
278  'image' => true,
279  'reset' => true,
280  'button' => true,
281 
282  // HTML input types
283  'datetime' => true,
284  'datetime-local' => true,
285  'date' => true,
286  'month' => true,
287  'time' => true,
288  'week' => true,
289  'number' => true,
290  'range' => true,
291  'email' => true,
292  'url' => true,
293  'search' => true,
294  'tel' => true,
295  'color' => true,
296  ];
297  if ( isset( $attribs['type'] ) && !isset( $validTypes[$attribs['type']] ) ) {
298  unset( $attribs['type'] );
299  }
300  }
301 
302  // According to standard the default type for <button> elements is "submit".
303  // Depending on compatibility mode IE might use "button", instead.
304  // We enforce the standard "submit".
305  if ( $element == 'button' && !isset( $attribs['type'] ) ) {
306  $attribs['type'] = 'submit';
307  }
308 
309  return "<$element" . self::expandAttributes(
310  self::dropDefaults( $element, $attribs ) ) . '>';
311  }
312 
320  public static function closeElement( $element ) {
321  $element = strtolower( $element );
322 
323  return "</$element>";
324  }
325 
343  private static function dropDefaults( $element, array $attribs ) {
344  // Whenever altering this array, please provide a covering test case
345  // in HtmlTest::provideElementsWithAttributesHavingDefaultValues
346  static $attribDefaults = [
347  'area' => [ 'shape' => 'rect' ],
348  'button' => [
349  'formaction' => 'GET',
350  'formenctype' => 'application/x-www-form-urlencoded',
351  ],
352  'canvas' => [
353  'height' => '150',
354  'width' => '300',
355  ],
356  'form' => [
357  'action' => 'GET',
358  'autocomplete' => 'on',
359  'enctype' => 'application/x-www-form-urlencoded',
360  ],
361  'input' => [
362  'formaction' => 'GET',
363  'type' => 'text',
364  ],
365  'keygen' => [ 'keytype' => 'rsa' ],
366  'link' => [ 'media' => 'all' ],
367  'menu' => [ 'type' => 'list' ],
368  'script' => [ 'type' => 'text/javascript' ],
369  'style' => [
370  'media' => 'all',
371  'type' => 'text/css',
372  ],
373  'textarea' => [ 'wrap' => 'soft' ],
374  ];
375 
376  foreach ( $attribs as $attrib => $value ) {
377  if ( $attrib === 'class' ) {
378  if ( $value === '' || $value === [] || $value === [ '' ] ) {
379  unset( $attribs[$attrib] );
380  }
381  } elseif ( isset( $attribDefaults[$element][$attrib] ) ) {
382  if ( is_array( $value ) ) {
383  $value = implode( ' ', $value );
384  } else {
385  $value = strval( $value );
386  }
387  if ( $attribDefaults[$element][$attrib] == $value ) {
388  unset( $attribs[$attrib] );
389  }
390  }
391  }
392 
393  // More subtle checks
394  if ( $element === 'link'
395  && isset( $attribs['type'] ) && strval( $attribs['type'] ) == 'text/css'
396  ) {
397  unset( $attribs['type'] );
398  }
399  if ( $element === 'input' ) {
400  $type = $attribs['type'] ?? null;
401  $value = $attribs['value'] ?? null;
402  if ( $type === 'checkbox' || $type === 'radio' ) {
403  // The default value for checkboxes and radio buttons is 'on'
404  // not ''. By stripping value="" we break radio boxes that
405  // actually wants empty values.
406  if ( $value === 'on' ) {
407  unset( $attribs['value'] );
408  }
409  } elseif ( $type === 'submit' ) {
410  // The default value for submit appears to be "Submit" but
411  // let's not bother stripping out localized text that matches
412  // that.
413  } else {
414  // The default value for nearly every other field type is ''
415  // The 'range' and 'color' types use different defaults but
416  // stripping a value="" does not hurt them.
417  if ( $value === '' ) {
418  unset( $attribs['value'] );
419  }
420  }
421  }
422  if ( $element === 'select' && isset( $attribs['size'] ) ) {
423  if ( in_array( 'multiple', $attribs )
424  || ( isset( $attribs['multiple'] ) && $attribs['multiple'] !== false )
425  ) {
426  // A multi-select
427  if ( strval( $attribs['size'] ) == '4' ) {
428  unset( $attribs['size'] );
429  }
430  } else {
431  // Single select
432  if ( strval( $attribs['size'] ) == '1' ) {
433  unset( $attribs['size'] );
434  }
435  }
436  }
437 
438  return $attribs;
439  }
440 
480  public static function expandAttributes( array $attribs ) {
481  $ret = '';
482  foreach ( $attribs as $key => $value ) {
483  // Support intuitive [ 'checked' => true/false ] form
484  if ( $value === false || $value === null ) {
485  continue;
486  }
487 
488  // For boolean attributes, support [ 'foo' ] instead of
489  // requiring [ 'foo' => 'meaningless' ].
490  if ( is_int( $key ) && isset( self::$boolAttribs[strtolower( $value )] ) ) {
491  $key = $value;
492  }
493 
494  // Not technically required in HTML5 but we'd like consistency
495  // and better compression anyway.
496  $key = strtolower( $key );
497 
498  // https://www.w3.org/TR/html401/index/attributes.html ("space-separated")
499  // https://www.w3.org/TR/html5/index.html#attributes-1 ("space-separated")
500  $spaceSeparatedListAttributes = [
501  'class' => true, // html4, html5
502  'accesskey' => true, // as of html5, multiple space-separated values allowed
503  // html4-spec doesn't document rel= as space-separated
504  // but has been used like that and is now documented as such
505  // in the html5-spec.
506  'rel' => true,
507  ];
508 
509  // Specific features for attributes that allow a list of space-separated values
510  if ( isset( $spaceSeparatedListAttributes[$key] ) ) {
511  // Apply some normalization and remove duplicates
512 
513  // Convert into correct array. Array can contain space-separated
514  // values. Implode/explode to get those into the main array as well.
515  if ( is_array( $value ) ) {
516  // If input wasn't an array, we can skip this step
517  $arrayValue = [];
518  foreach ( $value as $k => $v ) {
519  if ( is_string( $v ) ) {
520  // String values should be normal `[ 'foo' ]`
521  // Just append them
522  if ( !isset( $value[$v] ) ) {
523  // As a special case don't set 'foo' if a
524  // separate 'foo' => true/false exists in the array
525  // keys should be authoritative
526  foreach ( explode( ' ', $v ) as $part ) {
527  // Normalize spacing by fixing up cases where people used
528  // more than 1 space and/or a trailing/leading space
529  if ( $part !== '' && $part !== ' ' ) {
530  $arrayValue[] = $part;
531  }
532  }
533  }
534  } elseif ( $v ) {
535  // If the value is truthy but not a string this is likely
536  // an [ 'foo' => true ], falsy values don't add strings
537  $arrayValue[] = $k;
538  }
539  }
540  } else {
541  $arrayValue = explode( ' ', $value );
542  // Normalize spacing by fixing up cases where people used
543  // more than 1 space and/or a trailing/leading space
544  $arrayValue = array_diff( $arrayValue, [ '', ' ' ] );
545  }
546 
547  // Remove duplicates and create the string
548  $value = implode( ' ', array_unique( $arrayValue ) );
549 
550  // Optimization: Skip below boolAttribs check and jump straight
551  // to its `else` block. The current $spaceSeparatedListAttributes
552  // block is mutually exclusive with $boolAttribs.
553  // phpcs:ignore Generic.PHP.DiscourageGoto
554  goto not_bool; // NOSONAR
555  } elseif ( is_array( $value ) ) {
556  throw new MWException( "HTML attribute $key can not contain a list of values" );
557  }
558 
559  if ( isset( self::$boolAttribs[$key] ) ) {
560  $ret .= " $key=\"\"";
561  } else {
562  // phpcs:ignore Generic.PHP.DiscourageGoto
563  not_bool:
564  // Inlined from Sanitizer::encodeAttribute() for improved performance
565  $encValue = htmlspecialchars( $value, ENT_QUOTES );
566  // Whitespace is normalized during attribute decoding,
567  // so if we've been passed non-spaces we must encode them
568  // ahead of time or they won't be preserved.
569  $encValue = strtr( $encValue, [
570  "\n" => '&#10;',
571  "\r" => '&#13;',
572  "\t" => '&#9;',
573  ] );
574  $ret .= " $key=\"$encValue\"";
575  }
576  }
577  return $ret;
578  }
579 
593  public static function inlineScript( $contents, $nonce = null ) {
594  $attrs = [];
595  if ( $nonce !== null ) {
596  $attrs['nonce'] = $nonce;
597  } elseif ( ContentSecurityPolicy::isNonceRequired( MediaWikiServices::getInstance()->getMainConfig() ) ) {
598  wfWarn( "no nonce set on script. CSP will break it" );
599  }
600 
601  if ( preg_match( '/<\/?script/i', $contents ) ) {
602  wfLogWarning( __METHOD__ . ': Illegal character sequence found in inline script.' );
603  $contents = '/* ERROR: Invalid script */';
604  }
605 
606  return self::rawElement( 'script', $attrs, $contents );
607  }
608 
617  public static function linkedScript( $url, $nonce = null ) {
618  $attrs = [ 'src' => $url ];
619  if ( $nonce !== null ) {
620  $attrs['nonce'] = $nonce;
621  } elseif ( ContentSecurityPolicy::isNonceRequired( MediaWikiServices::getInstance()->getMainConfig() ) ) {
622  wfWarn( "no nonce set on script. CSP will break it" );
623  }
624 
625  return self::element( 'script', $attrs );
626  }
627 
640  public static function inlineStyle( $contents, $media = 'all', $attribs = [] ) {
641  // Don't escape '>' since that is used
642  // as direct child selector.
643  // Remember, in css, there is no "x" for hexadecimal escapes, and
644  // the space immediately after an escape sequence is swallowed.
645  $contents = strtr( $contents, [
646  '<' => '\3C ',
647  // CDATA end tag for good measure, but the main security
648  // is from escaping the '<'.
649  ']]>' => '\5D\5D\3E '
650  ] );
651 
652  if ( preg_match( '/[<&]/', $contents ) ) {
653  $contents = "/*<![CDATA[*/$contents/*]]>*/";
654  }
655 
656  return self::rawElement( 'style', [
657  'media' => $media,
658  ] + $attribs, $contents );
659  }
660 
669  public static function linkedStyle( $url, $media = 'all' ) {
670  return self::element( 'link', [
671  'rel' => 'stylesheet',
672  'href' => $url,
673  'media' => $media,
674  ] );
675  }
676 
688  public static function input( $name, $value = '', $type = 'text', array $attribs = [] ) {
689  $attribs['type'] = $type;
690  $attribs['value'] = $value;
691  $attribs['name'] = $name;
692  $textInputAttributes = [
693  'text' => true,
694  'search' => true,
695  'email' => true,
696  'password' => true,
697  'number' => true
698  ];
699  if ( isset( $textInputAttributes[$type] ) ) {
700  $attribs = self::getTextInputAttributes( $attribs );
701  }
702  $buttonAttributes = [
703  'button' => true,
704  'reset' => true,
705  'submit' => true
706  ];
707  if ( isset( $buttonAttributes[$type] ) ) {
708  $attribs = self::buttonAttributes( $attribs );
709  }
710  return self::element( 'input', $attribs );
711  }
712 
721  public static function check( $name, $checked = false, array $attribs = [] ) {
722  if ( isset( $attribs['value'] ) ) {
723  $value = $attribs['value'];
724  unset( $attribs['value'] );
725  } else {
726  $value = 1;
727  }
728 
729  if ( $checked ) {
730  $attribs[] = 'checked';
731  }
732 
733  return self::input( $name, $value, 'checkbox', $attribs );
734  }
735 
744  private static function messageBox( $html, $className, $heading = '' ) {
745  if ( $heading !== '' ) {
746  $html = self::element( 'h2', [], $heading ) . $html;
747  }
748  if ( is_array( $className ) ) {
749  $className[] = 'mw-message-box';
750  } else {
751  $className .= ' mw-message-box';
752  }
753  return self::rawElement( 'div', [ 'class' => $className ], $html );
754  }
755 
763  public static function noticeBox( $html, $className ) {
764  return self::messageBox( $html, [ 'mw-message-box-notice', $className ] );
765  }
766 
775  public static function warningBox( $html, $className = '' ) {
776  return self::messageBox( $html, [ 'mw-message-box-warning', $className ] );
777  }
778 
788  public static function errorBox( $html, $heading = '', $className = '' ) {
789  return self::messageBox( $html, [ 'mw-message-box-error', $className ], $heading );
790  }
791 
800  public static function successBox( $html, $className = '' ) {
801  return self::messageBox( $html, [ 'mw-message-box-success', $className ] );
802  }
803 
812  public static function radio( $name, $checked = false, array $attribs = [] ) {
813  if ( isset( $attribs['value'] ) ) {
814  $value = $attribs['value'];
815  unset( $attribs['value'] );
816  } else {
817  $value = 1;
818  }
819 
820  if ( $checked ) {
821  $attribs[] = 'checked';
822  }
823 
824  return self::input( $name, $value, 'radio', $attribs );
825  }
826 
835  public static function label( $label, $id, array $attribs = [] ) {
836  $attribs += [
837  'for' => $id
838  ];
839  return self::element( 'label', $attribs, $label );
840  }
841 
851  public static function hidden( $name, $value, array $attribs = [] ) {
852  return self::input( $name, $value, 'hidden', $attribs );
853  }
854 
867  public static function textarea( $name, $value = '', array $attribs = [] ) {
868  $attribs['name'] = $name;
869 
870  if ( substr( $value, 0, 1 ) == "\n" ) {
871  // Workaround for T14130: browsers eat the initial newline
872  // assuming that it's just for show, but they do keep the later
873  // newlines, which we may want to preserve during editing.
874  // Prepending a single newline
875  $spacedValue = "\n" . $value;
876  } else {
877  $spacedValue = $value;
878  }
879  return self::element( 'textarea', self::getTextInputAttributes( $attribs ), $spacedValue );
880  }
881 
887  public static function namespaceSelectorOptions( array $params = [] ) {
888  if ( !isset( $params['exclude'] ) || !is_array( $params['exclude'] ) ) {
889  $params['exclude'] = [];
890  }
891 
892  if ( $params['in-user-lang'] ?? false ) {
893  global $wgLang;
894  $lang = $wgLang;
895  } else {
896  $lang = MediaWikiServices::getInstance()->getContentLanguage();
897  }
898 
899  $optionsOut = [];
900  if ( isset( $params['all'] ) ) {
901  // add an option that would let the user select all namespaces.
902  // Value is provided by user, the name shown is localized for the user.
903  $optionsOut[$params['all']] = wfMessage( 'namespacesall' )->text();
904  }
905  // Add all namespaces as options
906  $options = $lang->getFormattedNamespaces();
907  // Filter out namespaces below 0 and massage labels
908  foreach ( $options as $nsId => $nsName ) {
909  if ( $nsId < NS_MAIN || in_array( $nsId, $params['exclude'] ) ) {
910  continue;
911  }
912  if ( $nsId === NS_MAIN ) {
913  // For other namespaces use the namespace prefix as label, but for
914  // main we don't use "" but the user message describing it (e.g. "(Main)" or "(Article)")
915  $nsName = wfMessage( 'blanknamespace' )->text();
916  } elseif ( is_int( $nsId ) ) {
917  $converter = MediaWikiServices::getInstance()->getLanguageConverterFactory()
918  ->getLanguageConverter( $lang );
919  $nsName = $converter->convertNamespace( $nsId );
920  }
921  $optionsOut[$nsId] = $nsName;
922  }
923 
924  return $optionsOut;
925  }
926 
943  public static function namespaceSelector( array $params = [],
944  array $selectAttribs = []
945  ) {
946  ksort( $selectAttribs );
947 
948  // Is a namespace selected?
949  if ( isset( $params['selected'] ) ) {
950  // If string only contains digits, convert to clean int. Selected could also
951  // be "all" or "" etc. which needs to be left untouched.
952  if ( !is_int( $params['selected'] ) && ctype_digit( (string)$params['selected'] ) ) {
953  $params['selected'] = (int)$params['selected'];
954  }
955  // else: leaves it untouched for later processing
956  } else {
957  $params['selected'] = '';
958  }
959 
960  if ( !isset( $params['disable'] ) || !is_array( $params['disable'] ) ) {
961  $params['disable'] = [];
962  }
963 
964  // Associative array between option-values and option-labels
965  $options = self::namespaceSelectorOptions( $params );
966 
967  // Convert $options to HTML
968  $optionsHtml = [];
969  foreach ( $options as $nsId => $nsName ) {
970  $optionsHtml[] = self::element(
971  'option', [
972  'disabled' => in_array( $nsId, $params['disable'] ),
973  'value' => $nsId,
974  'selected' => $nsId === $params['selected'],
975  ], $nsName
976  );
977  }
978 
979  if ( !array_key_exists( 'id', $selectAttribs ) ) {
980  $selectAttribs['id'] = 'namespace';
981  }
982 
983  if ( !array_key_exists( 'name', $selectAttribs ) ) {
984  $selectAttribs['name'] = 'namespace';
985  }
986 
987  $ret = '';
988  if ( isset( $params['label'] ) ) {
989  $ret .= self::element(
990  'label', [
991  'for' => $selectAttribs['id'] ?? null,
992  ], $params['label']
993  ) . "\u{00A0}";
994  }
995 
996  // Wrap options in a <select>
997  $ret .= self::openElement( 'select', $selectAttribs )
998  . "\n"
999  . implode( "\n", $optionsHtml )
1000  . "\n"
1001  . self::closeElement( 'select' );
1002 
1003  return $ret;
1004  }
1005 
1014  public static function htmlHeader( array $attribs = [] ) {
1015  $ret = '';
1016  $mainConfig = MediaWikiServices::getInstance()->getMainConfig();
1017  $html5Version = $mainConfig->get( MainConfigNames::Html5Version );
1018  $mimeType = $mainConfig->get( MainConfigNames::MimeType );
1019  $xhtmlNamespaces = $mainConfig->get( MainConfigNames::XhtmlNamespaces );
1020 
1021  $isXHTML = self::isXmlMimeType( $mimeType );
1022 
1023  if ( $isXHTML ) { // XHTML5
1024  // XML MIME-typed markup should have an xml header.
1025  // However a DOCTYPE is not needed.
1026  $ret .= "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n";
1027 
1028  // Add the standard xmlns
1029  $attribs['xmlns'] = 'http://www.w3.org/1999/xhtml';
1030 
1031  // And support custom namespaces
1032  foreach ( $xhtmlNamespaces as $tag => $ns ) {
1033  $attribs["xmlns:$tag"] = $ns;
1034  }
1035  } else { // HTML5
1036  $ret .= "<!DOCTYPE html>\n";
1037  }
1038 
1039  if ( $html5Version ) {
1040  $attribs['version'] = $html5Version;
1041  }
1042 
1043  $ret .= self::openElement( 'html', $attribs );
1044 
1045  return $ret;
1046  }
1047 
1054  public static function isXmlMimeType( $mimetype ) {
1055  # https://html.spec.whatwg.org/multipage/infrastructure.html#xml-mime-type
1056  # * text/xml
1057  # * application/xml
1058  # * Any MIME type with a subtype ending in +xml (this implicitly includes application/xhtml+xml)
1059  return (bool)preg_match( '!^(text|application)/xml$|^.+/.+\+xml$!', $mimetype );
1060  }
1061 
1085  public static function srcSet( array $urls ) {
1086  $candidates = [];
1087  foreach ( $urls as $density => $url ) {
1088  // Cast density to float to strip 'x', then back to string to serve
1089  // as array index.
1090  $density = (string)(float)$density;
1091  $candidates[$density] = $url;
1092  }
1093 
1094  // Remove duplicates that are the same as a smaller value
1095  ksort( $candidates, SORT_NUMERIC );
1096  $candidates = array_unique( $candidates );
1097 
1098  // Append density info to the url
1099  foreach ( $candidates as $density => $url ) {
1100  $candidates[$density] = $url . ' ' . $density . 'x';
1101  }
1102 
1103  return implode( ", ", $candidates );
1104  }
1105 }
const NS_MAIN
Definition: Defines.php:64
wfWarn( $msg, $callerOffset=1, $level=E_USER_NOTICE)
Send a warning either to the debug log or in a PHP error depending on $wgDevelopmentWarnings.
wfLogWarning( $msg, $callerOffset=1, $level=E_USER_WARNING)
Send a warning as a PHP error and the debug log.
wfMessage( $key,... $params)
This is the function for getting translated interface messages.
if(!defined( 'MW_NO_SESSION') &&! $wgCommandLineMode) $wgLang
Definition: Setup.php:497
static isNonceRequired(Config $config)
Should we set nonce attribute.
This class is a collection of static functions that serve two purposes:
Definition: Html.php:51
static inlineScript( $contents, $nonce=null)
Output an HTML script tag with the given contents.
Definition: Html.php:593
static label( $label, $id, array $attribs=[])
Convenience function for generating a label for inputs.
Definition: Html.php:835
static textarea( $name, $value='', array $attribs=[])
Convenience function to produce a <textarea> element.
Definition: Html.php:867
static namespaceSelectorOptions(array $params=[])
Helper for Html::namespaceSelector().
Definition: Html.php:887
static linkedScript( $url, $nonce=null)
Output a "<script>" tag linking to the given URL, e.g., "<script src=foo.js></script>".
Definition: Html.php:617
static buttonAttributes(array $attrs, array $modifiers=[])
Modifies a set of attributes meant for button elements and apply a set of default attributes when $wg...
Definition: Html.php:113
static linkedStyle( $url, $media='all')
Output a "<link rel=stylesheet>" linking to the given URL for the given media type (if any).
Definition: Html.php:669
static element( $element, $attribs=[], $contents='')
Identical to rawElement(), but HTML-escapes $contents (like Xml::element()).
Definition: Html.php:236
static isXmlMimeType( $mimetype)
Determines if the given MIME type is xml.
Definition: Html.php:1054
static htmlHeader(array $attribs=[])
Constructs the opening html-tag with necessary doctypes depending on global variables.
Definition: Html.php:1014
static input( $name, $value='', $type='text', array $attribs=[])
Convenience function to produce an "<input>" element.
Definition: Html.php:688
static submitButton( $contents, array $attrs, array $modifiers=[])
Returns an HTML link element in a string styled as a button (when $wgUseMediaWikiUIEverywhere is enab...
Definition: Html.php:190
static getTextInputAttributes(array $attrs)
Modifies a set of attributes meant for text input elements and apply a set of default attributes.
Definition: Html.php:141
static radio( $name, $checked=false, array $attribs=[])
Convenience function to produce a radio button (input element with type=radio)
Definition: Html.php:812
static expandAttributes(array $attribs)
Given an associative array of element attributes, generate a string to stick after the element name i...
Definition: Html.php:480
static rawElement( $element, $attribs=[], $contents='')
Returns an HTML element in a string.
Definition: Html.php:214
static warningBox( $html, $className='')
Return a warning box.
Definition: Html.php:775
static namespaceSelector(array $params=[], array $selectAttribs=[])
Build a drop-down box for selecting a namespace.
Definition: Html.php:943
static noticeBox( $html, $className)
Return the HTML for a notice message box.
Definition: Html.php:763
static openElement( $element, $attribs=[])
Identical to rawElement(), but has no third parameter and omits the end tag (and the self-closing '/'...
Definition: Html.php:256
static linkButton( $text, array $attrs, array $modifiers=[])
Returns an HTML link element in a string styled as a button (when $wgUseMediaWikiUIEverywhere is enab...
Definition: Html.php:170
static check( $name, $checked=false, array $attribs=[])
Convenience function to produce a checkbox (input element with type=checkbox)
Definition: Html.php:721
static srcSet(array $urls)
Generate a srcset attribute value.
Definition: Html.php:1085
static successBox( $html, $className='')
Return a success box.
Definition: Html.php:800
static errorBox( $html, $heading='', $className='')
Return an error box.
Definition: Html.php:788
static closeElement( $element)
Returns "</$element>".
Definition: Html.php:320
static hidden( $name, $value, array $attribs=[])
Convenience function to produce an input element with type=hidden.
Definition: Html.php:851
static inlineStyle( $contents, $media='all', $attribs=[])
Output a "<style>" tag with the given contents for the given media type (if any).
Definition: Html.php:640
MediaWiki exception.
Definition: MWException.php:29
A class containing constants representing the names of configuration variables.
Service locator for MediaWiki core services.
return true
Definition: router.php:90
if(!isset( $args[0])) $lang