includes/Linker.php

   1 <?php
   2 /**
   3  * Split off some of the internal bits from Skin.php. These functions are used
   4  * for primarily page content: links, embedded images, table of contents. Links
   5  * are also used in the skin. For the moment, Skin is a descendent class of
   6  * Linker.  In the future, it should probably be further split so that every
   7  * other bit of the wiki doesn't have to go loading up Skin to get at it.
   8  *
   9  * @ingroup Skins
  10  */
  11 class Linker {
  12
  13         /**
  14          * Flags for userToolLinks()
  15          */
  16         const TOOL_LINKS_NOBLOCK = 1;
  17
  18         function __construct() {}
  19
  20         /**
  21          * Get the appropriate HTML attributes to add to the "a" element of an ex-
  22          * ternal link, as created by [wikisyntax].
  23          *
  24          * @param $class String: the contents of the class attribute; if an empty
  25          *   string is passed, which is the default value, defaults to 'external'.
  26          */
  27         function getExternalLinkAttributes( $class = 'external' ) {
  28                 return $this->getLinkAttributesInternal( '', $class );
  29         }
  30
  31         /**
  32          * Get the appropriate HTML attributes to add to the "a" element of an in-
  33          * terwiki link.
  34          *
  35          * @param $title String: the title text for the link, URL-encoded (???) but
  36          *   not HTML-escaped
  37          * @param $unused String: unused
  38          * @param $class String: the contents of the class attribute; if an empty
  39          *   string is passed, which is the default value, defaults to 'external'.
  40          */
  41         function getInterwikiLinkAttributes( $title, $unused = null, $class = 'external' ) {
  42                 global $wgContLang;
  43
  44                 # FIXME: We have a whole bunch of handling here that doesn't happen in
  45                 # getExternalLinkAttributes, why?
  46                 $title = urldecode( $title );
  47                 $title = $wgContLang->checkTitleEncoding( $title );
  48                 $title = preg_replace( '/[\\x00-\\x1f]/', ' ', $title );
  49
  50                 return $this->getLinkAttributesInternal( $title, $class );
  51         }
  52
  53         /**
  54          * Get the appropriate HTML attributes to add to the "a" element of an in-
  55          * ternal link.
  56          *
  57          * @param $title String: the title text for the link, URL-encoded (???) but
  58          *   not HTML-escaped
  59          * @param $unused String: unused
  60          * @param $class String: the contents of the class attribute, default none
  61          */
  62         function getInternalLinkAttributes( $title, $unused = null, $class='' ) {
  63                 $title = urldecode( $title );
  64                 $title = str_replace( '_', ' ', $title );
  65                 return $this->getLinkAttributesInternal( $title, $class );
  66         }
  67
  68         /**
  69          * Get the appropriate HTML attributes to add to the "a" element of an in-
  70          * ternal link, given the Title object for the page we want to link to.
  71          *
  72          * @param $nt The Title object
  73          * @param $unused String: unused
  74          * @param $class String: the contents of the class attribute, default none
  75          * @param $title Mixed: optional (unescaped) string to use in the title
  76          *   attribute; if false, default to the name of the page we're linking to
  77          */
  78         function getInternalLinkAttributesObj( $nt, $unused = null, $class = '', $title = false ) {
  79                 if( $title === false ) {
  80                         $title = $nt->getPrefixedText();
  81                 }
  82                 return $this->getLinkAttributesInternal( $title, $class );
  83         }
  84
  85         /**
  86          * Common code for getLinkAttributesX functions
  87          */
  88         private function getLinkAttributesInternal( $title, $class ) {
  89                 $title = htmlspecialchars( $title );
  90                 $class = htmlspecialchars( $class );
  91                 $r = '';
  92                 if ( $class != '' ) {
  93                         $r .= " class=\"$class\"";
  94                 }
  95                 if ( $title != '') {
  96                         $r .= " title=\"$title\"";
  97                 }
  98                 return $r;
  99         }
 100
 101         /**
 102          * Return the CSS colour of a known link
 103          *
 104          * @param $t Title object
 105          * @param $threshold Integer: user defined threshold
 106          * @return String: CSS class
 107          */
 108         function getLinkColour( $t, $threshold ) {
 109                 $colour = '';
 110                 if ( $t->isRedirect() ) {
 111                         # Page is a redirect
 112                         $colour = 'mw-redirect';
 113                 } elseif ( $threshold > 0 &&
 114                            $t->exists() && $t->getLength() < $threshold &&
 115                            $t->isContentPage() ) {
 116                         # Page is a stub
 117                         $colour = 'stub';
 118                 }
 119                 return $colour;
 120         }
 121
 122         /**
 123          * This function returns an HTML link to the given target.  It serves a few
 124          * purposes:
 125          *   1) If $target is a Title, the correct URL to link to will be figured
 126          *      out automatically.
 127          *   2) It automatically adds the usual classes for various types of link
 128          *      targets: "new" for red links, "stub" for short articles, etc.
 129          *   3) It escapes all attribute values safely so there's no risk of XSS.
 130          *   4) It provides a default tooltip if the target is a Title (the page
 131          *      name of the target).
 132          * link() replaces the old functions in the makeLink() family.
 133          *
 134          * @param $target        Title  Can currently only be a Title, but this may
 135          *   change to support Images, literal URLs, etc.
 136          * @param $text          string The HTML contents of the <a> element, i.e.,
 137          *   the link text.  This is raw HTML and will not be escaped.  If null,
 138          *   defaults to the prefixed text of the Title; or if the Title is just a
 139          *   fragment, the contents of the fragment.
 140          * @param $customAttribs array  A key => value array of extra HTML attri-
 141          *   butes, such as title and class.  (href is ignored.)  Classes will be
 142          *   merged with the default classes, while other attributes will replace
 143          *   default attributes.  All passed attribute values will be HTML-escaped.
 144          *   A false attribute value means to suppress that attribute.
 145          * @param $query         array  The query string to append to the URL
 146          *   you're linking to, in key => value array form.  Query keys and values
 147          *   will be URL-encoded.
 148          * @param $options       mixed  String or array of strings:
 149          *     'known': Page is known to exist, so don't check if it does.
 150          *     'broken': Page is known not to exist, so don't check if it does.
 151          *     'noclasses': Don't add any classes automatically (includes "new",
 152          *       "stub", "mw-redirect", "extiw").  Only use the class attribute
 153          *       provided, if any, so you get a simple blue link with no funny i-
 154          *       cons.
 155          *     'forcearticlepath': Use the article path always, even with a querystring.
 156          *       Has compatibility issues on some setups, so avoid wherever possible.
 157          * @return string HTML <a> attribute
 158          */
 159         public function link( $target, $text = null, $customAttribs = array(), $query = array(), $options = array() ) {
 160                 wfProfileIn( __METHOD__ );
 161                 if( !$target instanceof Title ) {
 162                         return "<!-- ERROR -->$text";
 163                 }
 164                 $options = (array)$options;
 165
 166                 $ret = null;
 167                 if( !wfRunHooks( 'LinkBegin', array( $this, $target, &$text,
 168                 &$customAttribs, &$query, &$options, &$ret ) ) ) {
 169                         wfProfileOut( __METHOD__ );
 170                         return $ret;
 171                 }
 172
 173                 # Normalize the Title if it's a special page
 174                 $target = $this->normaliseSpecialPage( $target );
 175
 176                 # If we don't know whether the page exists, let's find out.
 177                 wfProfileIn( __METHOD__ . '-checkPageExistence' );
 178                 if( !in_array( 'known', $options ) and !in_array( 'broken', $options ) ) {
 179                         if( $target->isKnown() ) {
 180                                 $options []= 'known';
 181                         } else {
 182                                 $options []= 'broken';
 183                         }
 184                 }
 185                 wfProfileOut( __METHOD__ . '-checkPageExistence' );
 186
 187                 $oldquery = array();
 188                 if( in_array( "forcearticlepath", $options ) && $query ){
 189                         $oldquery = $query;
 190                         $query = array();
 191                 }
 192
 193                 # Note: we want the href attribute first, for prettiness.
 194                 $attribs = array( 'href' => $this->linkUrl( $target, $query, $options ) );
 195                 if( in_array( 'forcearticlepath', $options ) && $oldquery ){
 196                         $attribs['href'] = wfAppendQuery( $attribs['href'], wfArrayToCgi( $oldquery ) );
 197                 }
 198
 199                 $attribs = array_merge(
 200                         $attribs,
 201                         $this->linkAttribs( $target, $customAttribs, $options )
 202                 );
 203                 if( is_null( $text ) ) {
 204                         $text = $this->linkText( $target );
 205                 }
 206
 207                 $ret = null;
 208                 if( wfRunHooks( 'LinkEnd', array( $this, $target, $options, &$text, &$attribs, &$ret ) ) ) {
 209                         $ret = Html::rawElement( 'a', $attribs, $text );
 210                 }
 211
 212                 wfProfileOut( __METHOD__ );
 213                 return $ret;
 214         }
 215
 216         /**
 217          * Identical to link(), except $options defaults to 'known'.
 218          */
 219         public function linkKnown( $target, $text = null, $customAttribs = array(), $query = array(), $options = array('known','noclasses') ) {
 220                 return $this->link( $target, $text, $customAttribs, $query, $options );
 221         }
 222
 223         /**
 224          * Returns the Url used to link to a Title
 225          */
 226         private function linkUrl( $target, $query, $options ) {
 227                 wfProfileIn( __METHOD__ );
 228                 # We don't want to include fragments for broken links, because they
 229                 # generally make no sense.
 230                 if( in_array( 'broken', $options ) and $target->mFragment !== '' ) {
 231                         $target = clone $target;
 232                         $target->mFragment = '';
 233                 }
 234
 235                 # If it's a broken link, add the appropriate query pieces, unless
 236                 # there's already an action specified, or unless 'edit' makes no sense
 237                 # (i.e., for a nonexistent special page).
 238                 if( in_array( 'broken', $options ) and empty( $query['action'] )
 239                 and $target->getNamespace() != NS_SPECIAL ) {
 240                         $query['action'] = 'edit';
 241                         $query['redlink'] = '1';
 242                 }
 243                 $ret = $target->getLinkUrl( $query );
 244                 wfProfileOut( __METHOD__ );
 245                 return $ret;
 246         }
 247
 248         /**
 249          * Returns the array of attributes used when linking to the Title $target
 250          */
 251         private function linkAttribs( $target, $attribs, $options ) {
 252                 wfProfileIn( __METHOD__ );
 253                 global $wgUser;
 254                 $defaults = array();
 255
 256                 if( !in_array( 'noclasses', $options ) ) {
 257                         wfProfileIn( __METHOD__ . '-getClasses' );
 258                         # Now build the classes.
 259                         $classes = array();
 260
 261                         if( in_array( 'broken', $options ) ) {
 262                                 $classes[] = 'new';
 263                         }
 264
 265                         if( $target->isExternal() ) {
 266                                 $classes[] = 'extiw';
 267                         }
 268
 269                         if ( !in_array( 'broken', $options ) ) { # Avoid useless calls to LinkCache (see r50387)
 270                                 $colour = $this->getLinkColour( $target, $wgUser->getStubThreshold() );
 271                                 if ( $colour !== '' ) {
 272                                         $classes[] = $colour; # mw-redirect or stub
 273                                 }
 274                         }
 275                         if( $classes != array() ) {
 276                                 $defaults['class'] = implode( ' ', $classes );
 277                         }
 278                         wfProfileOut( __METHOD__ . '-getClasses' );
 279                 }
 280
 281                 # Get a default title attribute.
 282                 if( $target->getPrefixedText() == '' ) {
 283                         # A link like [[#Foo]].  This used to mean an empty title
 284                         # attribute, but that's silly.  Just don't output a title.
 285                 } elseif( in_array( 'known', $options ) ) {
 286                         $defaults['title'] = $target->getPrefixedText();
 287                 } else {
 288                         $defaults['title'] = wfMsg( 'red-link-title', $target->getPrefixedText() );
 289                 }
 290
 291                 # Finally, merge the custom attribs with the default ones, and iterate
 292                 # over that, deleting all "false" attributes.
 293                 $ret = array();
 294                 $merged = Sanitizer::mergeAttributes( $defaults, $attribs );
 295                 foreach( $merged as $key => $val ) {
 296                         # A false value suppresses the attribute, and we don't want the
 297                         # href attribute to be overridden.
 298                         if( $key != 'href' and $val !== false ) {
 299                                 $ret[$key] = $val;
 300                         }
 301                 }
 302                 wfProfileOut( __METHOD__ );
 303                 return $ret;
 304         }
 305
 306         /**
 307          * Default text of the links to the Title $target
 308          */
 309         private function linkText( $target ) {
 310                 # We might be passed a non-Title by make*LinkObj().  Fail gracefully.
 311                 if( !$target instanceof Title ) {
 312                         return '';
 313                 }
 314
 315                 # If the target is just a fragment, with no title, we return the frag-
 316                 # ment text.  Otherwise, we return the title text itself.
 317                 if( $target->getPrefixedText() === '' and $target->getFragment() !== '' ) {
 318                         return htmlspecialchars( $target->getFragment() );
 319                 }
 320                 return htmlspecialchars( $target->getPrefixedText() );
 321         }
 322
 323         /**
 324          * Generate either a normal exists-style link or a stub link, depending
 325          * on the given page size.
 326          *
 327          * @param $size Integer
 328          * @param $nt Title object.
 329          * @param $text String
 330          * @param $query String
 331          * @param $trail String
 332          * @param $prefix String
 333          * @return string HTML of link
 334          * @deprecated
 335          */
 336         function makeSizeLinkObj( $size, $nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
 337                 global $wgUser;
 338                 wfDeprecated( __METHOD__ );
 339
 340                 $threshold = $wgUser->getStubThreshold();
 341                 $colour = ( $size < $threshold ) ? 'stub' : '';
 342                 // FIXME: replace deprecated makeColouredLinkObj by link()
 343                 return $this->makeColouredLinkObj( $nt, $colour, $text, $query, $trail, $prefix );
 344         }
 345
 346         /**
 347          * Make appropriate markup for a link to the current article. This is currently rendered
 348          * as the bold link text. The calling sequence is the same as the other make*LinkObj functions,
 349          * despite $query not being used.
 350          */
 351         function makeSelfLinkObj( $nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
 352                 if ( $text == '' ) {
 353                         $text = htmlspecialchars( $nt->getPrefixedText() );
 354                 }
 355                 list( $inside, $trail ) = Linker::splitTrail( $trail );
 356                 return "<strong class=\"selflink\">{$prefix}{$text}{$inside}</strong>{$trail}";
 357         }
 358
 359         function normaliseSpecialPage( Title $title ) {
 360                 if ( $title->getNamespace() == NS_SPECIAL ) {
 361                         list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $title->getDBkey() );
 362                         if ( !$name ) return $title;
 363                         $ret = SpecialPage::getTitleFor( $name, $subpage );
 364                         $ret->mFragment = $title->getFragment();
 365                         return $ret;
 366                 } else {
 367                         return $title;
 368                 }
 369         }
 370
 371         /**
 372          * Returns the filename part of an url.
 373          * Used as alternative text for external images.
 374          */
 375         function fnamePart( $url ) {
 376                 $basename = strrchr( $url, '/' );
 377                 if ( false === $basename ) {
 378                         $basename = $url;
 379                 } else {
 380                         $basename = substr( $basename, 1 );
 381                 }
 382                 return $basename;
 383         }
 384
 385         /**
 386          * Return the code for images which were added via external links,
 387          * via Parser::maybeMakeExternalImage().
 388          */
 389         function makeExternalImage( $url, $alt = '' ) {
 390                 if ( $alt == '' ) {
 391                         $alt = $this->fnamePart( $url );
 392                 }
 393                 $img = '';
 394                 $success = wfRunHooks('LinkerMakeExternalImage', array( &$url, &$alt, &$img ) );
 395                 if(!$success) {
 396                         wfDebug("Hook LinkerMakeExternalImage changed the output of external image with url {$url} and alt text {$alt} to {$img}\n", true);
 397                         return $img;
 398                 }
 399                 return Html::element( 'img',
 400                         array(
 401                                 'src' => $url,
 402                                 'alt' => $alt ) );
 403         }
 404
 405         /**
 406          * Given parameters derived from [[Image:Foo|options...]], generate the
 407          * HTML that that syntax inserts in the page.
 408          *
 409          * @param $title Title object
 410          * @param $file File object, or false if it doesn't exist
 411          * @param $frameParams Array: associative array of parameters external to the media handler.
 412          *     Boolean parameters are indicated by presence or absence, the value is arbitrary and
 413          *     will often be false.
 414          *          thumbnail       If present, downscale and frame
 415          *          manualthumb     Image name to use as a thumbnail, instead of automatic scaling
 416          *          framed          Shows image in original size in a frame
 417          *          frameless       Downscale but don't frame
 418          *          upright         If present, tweak default sizes for portrait orientation
 419          *          upright_factor  Fudge factor for "upright" tweak (default 0.75)
 420          *          border          If present, show a border around the image
 421          *          align           Horizontal alignment (left, right, center, none)
 422          *          valign          Vertical alignment (baseline, sub, super, top, text-top, middle,
 423          *                          bottom, text-bottom)
 424          *          alt             Alternate text for image (i.e. alt attribute). Plain text.
 425          *          caption         HTML for image caption.
 426          *          link-url        URL to link to
 427          *          link-title      Title object to link to
 428          *          no-link         Boolean, suppress description link
 429          *
 430          * @param $handlerParams Array: associative array of media handler parameters, to be passed
 431          *       to transform(). Typical keys are "width" and "page".
 432          * @param $time String: timestamp of the file, set as false for current
 433          * @param $query String: query params for desc url
 434          * @return String: HTML for an image, with links, wrappers, etc.
 435          */
 436         function makeImageLink2( Title $title, $file, $frameParams = array(), $handlerParams = array(), $time = false, $query = "" ) {
 437                 $res = null;
 438                 if( !wfRunHooks( 'ImageBeforeProduceHTML', array( &$this, &$title,
 439                 &$file, &$frameParams, &$handlerParams, &$time, &$res ) ) ) {
 440                         return $res;
 441                 }
 442
 443                 global $wgContLang, $wgUser, $wgThumbLimits, $wgThumbUpright;
 444                 if ( $file && !$file->allowInlineDisplay() ) {
 445                         wfDebug( __METHOD__.': '.$title->getPrefixedDBkey()." does not allow inline display\n" );
 446                         return $this->link( $title );
 447                 }
 448
 449                 // Shortcuts
 450                 $fp =& $frameParams;
 451                 $hp =& $handlerParams;
 452
 453                 // Clean up parameters
 454                 $page = isset( $hp['page'] ) ? $hp['page'] : false;
 455                 if ( !isset( $fp['align'] ) ) $fp['align'] = '';
 456                 if ( !isset( $fp['alt'] ) ) $fp['alt'] = '';
 457                 if ( !isset( $fp['title'] ) ) $fp['title'] = '';
 458
 459                 $prefix = $postfix = '';
 460
 461                 if ( 'center' == $fp['align'] ) {
 462                         $prefix  = '<div class="center">';
 463                         $postfix = '</div>';
 464                         $fp['align']   = 'none';
 465                 }
 466                 if ( $file && !isset( $hp['width'] ) ) {
 467                         $hp['width'] = $file->getWidth( $page );
 468
 469                         if( isset( $fp['thumbnail'] ) || isset( $fp['framed'] ) || isset( $fp['frameless'] ) || !$hp['width'] ) {
 470                                 $wopt = $wgUser->getOption( 'thumbsize' );
 471
 472                                 if( !isset( $wgThumbLimits[$wopt] ) ) {
 473                                          $wopt = User::getDefaultOption( 'thumbsize' );
 474                                 }
 475
 476                                 // Reduce width for upright images when parameter 'upright' is used
 477                                 if ( isset( $fp['upright'] ) && $fp['upright'] == 0 ) {
 478                                         $fp['upright'] = $wgThumbUpright;
 479                                 }
 480                                 // Use width which is smaller: real image width or user preference width
 481                                 // For caching health: If width scaled down due to upright parameter, round to full __0 pixel to avoid the creation of a lot of odd thumbs
 482                                 $prefWidth = isset( $fp['upright'] ) ?
 483                                         round( $wgThumbLimits[$wopt] * $fp['upright'], -1 ) :
 484                                         $wgThumbLimits[$wopt];
 485                                 if ( $hp['width'] <= 0 || $prefWidth < $hp['width'] ) {
 486                                         if( !isset( $hp['height'] ) ) {
 487                                                 $hp['width'] = $prefWidth;
 488                                         }
 489                                 }
 490                         }
 491                 }
 492
 493                 if ( isset( $fp['thumbnail'] ) || isset( $fp['manualthumb'] ) || isset( $fp['framed'] ) ) {
 494                         # Create a thumbnail. Alignment depends on language
 495                         # writing direction, # right aligned for left-to-right-
 496                         # languages ("Western languages"), left-aligned
 497                         # for right-to-left-languages ("Semitic languages")
 498                         #
 499                         # If  thumbnail width has not been provided, it is set
 500                         # to the default user option as specified in Language*.php
 501                         if ( $fp['align'] == '' ) {
 502                                 $fp['align'] = $wgContLang->alignEnd();
 503                         }
 504                         return $prefix.$this->makeThumbLink2( $title, $file, $fp, $hp, $time, $query ).$postfix;
 505                 }
 506
 507                 if ( $file && isset( $fp['frameless'] ) ) {
 508                         $srcWidth = $file->getWidth( $page );
 509                         # For "frameless" option: do not present an image bigger than the source (for bitmap-style images)
 510                         # This is the same behaviour as the "thumb" option does it already.
 511                         if ( $srcWidth && !$file->mustRender() && $hp['width'] > $srcWidth ) {
 512                                 $hp['width'] = $srcWidth;
 513                         }
 514                 }
 515
 516                 if ( $file && $hp['width'] ) {
 517                         # Create a resized image, without the additional thumbnail features
 518                         $thumb = $file->transform( $hp );
 519                 } else {
 520                         $thumb = false;
 521                 }
 522
 523                 if ( !$thumb ) {
 524                         $s = $this->makeBrokenImageLinkObj( $title, $fp['title'], '', '', '', $time==true );
 525                 } else {
 526                         $params = array(
 527                                 'alt' => $fp['alt'],
 528                                 'title' => $fp['title'],
 529                                 'valign' => isset( $fp['valign'] ) ? $fp['valign'] : false ,
 530                                 'img-class' => isset( $fp['border'] ) ? 'thumbborder' : false );
 531                         $params = $this->getImageLinkMTOParams( $fp, $query ) + $params;
 532
 533                         $s = $thumb->toHtml( $params );
 534                 }
 535                 if ( $fp['align'] != '' ) {
 536                         $s = "<div class=\"float{$fp['align']}\">{$s}</div>";
 537                 }
 538                 return str_replace("\n", ' ',$prefix.$s.$postfix);
 539         }
 540
 541         /**
 542          * Get the link parameters for MediaTransformOutput::toHtml() from given
 543          * frame parameters supplied by the Parser.
 544          * @param $frameParams The frame parameters
 545          * @param $query An optional query string to add to description page links
 546          */
 547         function getImageLinkMTOParams( $frameParams, $query = '' ) {
 548                 $mtoParams = array();
 549                 if ( isset( $frameParams['link-url'] ) && $frameParams['link-url'] !== '' ) {
 550                         $mtoParams['custom-url-link'] = $frameParams['link-url'];
 551                 } elseif ( isset( $frameParams['link-title'] ) && $frameParams['link-title'] !== '' ) {
 552                         $mtoParams['custom-title-link'] = $frameParams['link-title'];
 553                 } elseif ( !empty( $frameParams['no-link'] ) ) {
 554                         // No link
 555                 } else {
 556                         $mtoParams['desc-link'] = true;
 557                         $mtoParams['desc-query'] = $query;
 558                 }
 559                 return $mtoParams;
 560         }
 561
 562         /**
 563          * Make HTML for a thumbnail including image, border and caption
 564          * @param $title Title object
 565          * @param $file File object or false if it doesn't exist
 566          * @param $label String
 567          * @param $alt String
 568          * @param $align String
 569          * @param $params Array
 570          * @param $framed Boolean
 571          * @param $manualthumb String
 572          */
 573         function makeThumbLinkObj( Title $title, $file, $label = '', $alt, $align = 'right', $params = array(), $framed=false , $manualthumb = "" ) {
 574                 $frameParams = array(
 575                         'alt' => $alt,
 576                         'caption' => $label,
 577                         'align' => $align
 578                 );
 579                 if ( $framed ) $frameParams['framed'] = true;
 580                 if ( $manualthumb ) $frameParams['manualthumb'] = $manualthumb;
 581                 return $this->makeThumbLink2( $title, $file, $frameParams, $params );
 582         }
 583
 584         function makeThumbLink2( Title $title, $file, $frameParams = array(), $handlerParams = array(), $time = false, $query = "" ) {
 585                 global $wgStylePath;
 586                 $exists = $file && $file->exists();
 587
 588                 # Shortcuts
 589                 $fp =& $frameParams;
 590                 $hp =& $handlerParams;
 591
 592                 $page = isset( $hp['page'] ) ? $hp['page'] : false;
 593                 if ( !isset( $fp['align'] ) ) $fp['align'] = 'right';
 594                 if ( !isset( $fp['alt'] ) ) $fp['alt'] = '';
 595                 if ( !isset( $fp['title'] ) ) $fp['title'] = '';
 596                 if ( !isset( $fp['caption'] ) ) $fp['caption'] = '';
 597
 598                 if ( empty( $hp['width'] ) ) {
 599                         // Reduce width for upright images when parameter 'upright' is used
 600                         $hp['width'] = isset( $fp['upright'] ) ? 130 : 180;
 601                 }
 602                 $thumb = false;
 603
 604                 if ( !$exists ) {
 605                         $outerWidth = $hp['width'] + 2;
 606                 } else {
 607                         if ( isset( $fp['manualthumb'] ) ) {
 608                                 # Use manually specified thumbnail
 609                                 $manual_title = Title::makeTitleSafe( NS_FILE, $fp['manualthumb'] );
 610                                 if( $manual_title ) {
 611                                         $manual_img = wfFindFile( $manual_title );
 612                                         if ( $manual_img ) {
 613                                                 $thumb = $manual_img->getUnscaledThumb( $hp );
 614                                         } else {
 615                                                 $exists = false;
 616                                         }
 617                                 }
 618                         } elseif ( isset( $fp['framed'] ) ) {
 619                                 // Use image dimensions, don't scale
 620                                 $thumb = $file->getUnscaledThumb( $hp );
 621                         } else {
 622                                 # Do not present an image bigger than the source, for bitmap-style images
 623                                 # This is a hack to maintain compatibility with arbitrary pre-1.10 behaviour
 624                                 $srcWidth = $file->getWidth( $page );
 625                                 if ( $srcWidth && !$file->mustRender() && $hp['width'] > $srcWidth ) {
 626                                         $hp['width'] = $srcWidth;
 627                                 }
 628                                 $thumb = $file->transform( $hp );
 629                         }
 630
 631                         if ( $thumb ) {
 632                                 $outerWidth = $thumb->getWidth() + 2;
 633                         } else {
 634                                 $outerWidth = $hp['width'] + 2;
 635                         }
 636                 }
 637
 638                 # ThumbnailImage::toHtml() already adds page= onto the end of DjVu URLs
 639                 # So we don't need to pass it here in $query. However, the URL for the
 640                 # zoom icon still needs it, so we make a unique query for it. See bug 14771
 641                 $url = $title->getLocalURL( $query );
 642                 if( $page ) {
 643                         $url = wfAppendQuery( $url, 'page=' . urlencode( $page ) );
 644                 }
 645
 646                 $s = "<div class=\"thumb t{$fp['align']}\"><div class=\"thumbinner\" style=\"width:{$outerWidth}px;\">";
 647                 if( !$exists ) {
 648                         $s .= $this->makeBrokenImageLinkObj( $title, $fp['title'], '', '', '', $time==true );
 649                         $zoomIcon = '';
 650                 } elseif ( !$thumb ) {
 651                         $s .= htmlspecialchars( wfMsg( 'thumbnail_error', '' ) );
 652                         $zoomIcon = '';
 653                 } else {
 654                         $params = array(
 655                                 'alt' => $fp['alt'],
 656                                 'title' => $fp['title'],
 657                                 'img-class' => 'thumbimage' );
 658                         $params = $this->getImageLinkMTOParams( $fp, $query ) + $params;
 659                         $s .= $thumb->toHtml( $params );
 660                         if ( isset( $fp['framed'] ) ) {
 661                                 $zoomIcon = "";
 662                         } else {
 663                                 $zoomIcon =  '<div class="magnify">'.
 664                                         '<a href="' . htmlspecialchars( $url ) . '" class="internal" ' .
 665                                                 'title="' . htmlspecialchars( wfMsg( 'thumbnail-more' ) ) . '">'.
 666                                         '<img src="' . htmlspecialchars( $wgStylePath ) . '/common/images/magnify-clip.png" ' .
 667                                                 'width="15" height="11" alt="" /></a></div>';
 668                         }
 669                 }
 670                 $s .= '  <div class="thumbcaption">' . $zoomIcon . $fp['caption'] . "</div></div></div>";
 671                 return str_replace("\n", ' ', $s);
 672         }
 673
 674         /**
 675          * Make a "broken" link to an image
 676          *
 677          * @param $title Title object
 678          * @param $text String: link label
 679          * @param $query String: query string
 680          * @param $trail String: link trail
 681          * @param $prefix String: link prefix
 682          * @param $time Boolean: a file of a certain timestamp was requested
 683          * @return String
 684          */
 685         public function makeBrokenImageLinkObj( $title, $text = '', $query = '', $trail = '', $prefix = '', $time = false ) {
 686                 global $wgEnableUploads, $wgUploadMissingFileUrl;
 687                 if( $title instanceof Title ) {
 688                         wfProfileIn( __METHOD__ );
 689                         $currentExists = $time ? ( wfFindFile( $title ) != false ) : false;
 690                         if( ( $wgUploadMissingFileUrl || $wgEnableUploads ) && !$currentExists ) {
 691                                 if( $text == '' )
 692                                         $text = htmlspecialchars( $title->getPrefixedText() );
 693
 694                                 $redir = RepoGroup::singleton()->getLocalRepo()->checkRedirect( $title );
 695                                 if( $redir ) {
 696                                         wfProfileOut( __METHOD__ );
 697                                         return $this->makeKnownLinkObj( $title, $text, $query, $trail, $prefix );
 698                                 }
 699
 700                                 $href = $this->getUploadUrl( $title, $query );
 701
 702
 703                                 list( $inside, $trail ) = self::splitTrail( $trail );
 704
 705                                 wfProfileOut( __METHOD__ );
 706                                 return '<a href="' . htmlspecialchars( $href ) . '" class="new" title="' .
 707                                                                 htmlspecialchars( $title->getPrefixedText(), ENT_QUOTES ) . '">' .
 708                                                                 htmlspecialchars( $prefix . $text . $inside, ENT_NOQUOTES ) . '</a>' . $trail;
 709                         } else {
 710                                 wfProfileOut( __METHOD__ );
 711                                 return $this->makeKnownLinkObj( $title, $text, $query, $trail, $prefix );
 712                         }
 713                 } else {
 714                         return "<!-- ERROR -->{$prefix}{$text}{$trail}";
 715                 }
 716         }
 717
 718         /**
 719          * Get the URL to upload a certain file
 720          *
 721          * @param $destFile Title object of the file to upload
 722          * @param $query String: urlencoded query string to prepend
 723          * @return String: urlencoded URL
 724          */
 725         protected function getUploadUrl( $destFile, $query = '' ) {
 726                 global $wgUploadMissingFileUrl;
 727                 $q = 'wpDestFile=' . $destFile->getPartialUrl();
 728                 if( $query != '' )
 729                         $q .= '&' . $query;
 730
 731                 if( $wgUploadMissingFileUrl ) {
 732                         return wfAppendQuery( $wgUploadMissingFileUrl, $q );
 733                 } else {
 734                         $upload = SpecialPage::getTitleFor( 'Upload' );
 735                         return $upload->getLocalUrl( $q );
 736                 }
 737         }
 738
 739         /**
 740          * Create a direct link to a given uploaded file.
 741          *
 742          * @param $title Title object.
 743          * @param $text String: pre-sanitized HTML
 744          * @param $time string: time image was created
 745          * @return String: HTML
 746          *
 747          * @todo Handle invalid or missing images better.
 748          */
 749         public function makeMediaLinkObj( $title, $text = '', $time = false ) {
 750                 if( is_null( $title ) ) {
 751                         ### HOTFIX. Instead of breaking, return empty string.
 752                         return $text;
 753                 } else {
 754                         $img  = wfFindFile( $title, array( 'time' => $time ) );
 755                         if( $img ) {
 756                                 $url  = $img->getURL();
 757                                 $class = 'internal';
 758                         } else {
 759                                 $url = $this->getUploadUrl( $title );
 760                                 $class = 'new';
 761                         }
 762                         $alt = htmlspecialchars( $title->getText(),  ENT_QUOTES );
 763                         if( $text == '' ) {
 764                                 $text = $alt;
 765                         }
 766                         $u = htmlspecialchars( $url );
 767                         return "<a href=\"{$u}\" class=\"$class\" title=\"{$alt}\">{$text}</a>";
 768                 }
 769         }
 770
 771         /**
 772          *  Make a link to a special page given its name and, optionally,
 773          * a message key from the link text.
 774          * Usage example: $skin->specialLink( 'recentchanges' )
 775          */
 776         function specialLink( $name, $key = '' ) {
 777                 global $wgContLang;
 778
 779                 if ( $key == '' ) { $key = strtolower( $name ); }
 780                 $pn = $wgContLang->ucfirst( $name );
 781                 return $this->makeKnownLink( $wgContLang->specialPage( $pn ),
 782                   wfMsg( $key ) );
 783         }
 784
 785         /**
 786          * Make an external link
 787          * @param $url String: URL to link to
 788          * @param $text String: text of link
 789          * @param $escape Boolean: do we escape the link text?
 790          * @param $linktype String: type of external link. Gets added to the classes
 791          * @param $attribs Array of extra attributes to <a>
 792          *
 793          * @todo FIXME: This is a really crappy implementation. $linktype and
 794          * 'external' are mashed into the class attrib for the link (which is made
 795          * into a string). Then, if we've got additional params in $attribs, we
 796          * add to it. People using this might want to change the classes (or other
 797          * default link attributes), but passing $attribsText is just messy. Would
 798          * make a lot more sense to make put the classes into $attribs, let the
 799          * hook play with them, *then* expand it all at once.
 800          */
 801         function makeExternalLink( $url, $text, $escape = true, $linktype = '', $attribs = array() ) {
 802                 if ( isset( $attribs[ 'class' ] ) ) $class = $attribs[ 'class' ]; # yet another hack :(
 803                 else $class =  'external ' . $linktype;
 804
 805                 $attribsText = $this->getExternalLinkAttributes( $class );
 806                 $url = htmlspecialchars( $url );
 807                 if( $escape ) {
 808                         $text = htmlspecialchars( $text );
 809                 }
 810                 $link = '';
 811                 $success = wfRunHooks('LinkerMakeExternalLink', array( &$url, &$text, &$link, &$attribs, $linktype ) );
 812                 if(!$success) {
 813                         wfDebug("Hook LinkerMakeExternalLink changed the output of link with url {$url} and text {$text} to {$link}\n", true);
 814                         return $link;
 815                 }
 816                 if ( $attribs ) {
 817                         $attribsText .= Html::expandAttributes( $attribs );
 818                 }
 819                 return '<a href="'.$url.'"'.$attribsText.'>'.$text.'</a>';
 820         }
 821
 822         /**
 823          * Make user link (or user contributions for unregistered users)
 824          * @param $userId   Integer: user id in database.
 825          * @param $userText String: user name in database
 826          * @return String: HTML fragment
 827          * @private
 828          */
 829         function userLink( $userId, $userText ) {
 830                 if( $userId == 0 ) {
 831                         $page = SpecialPage::getTitleFor( 'Contributions', $userText );
 832                 } else {
 833                         $page = Title::makeTitle( NS_USER, $userText );
 834                 }
 835                 return $this->link( $page, htmlspecialchars( $userText ), array( 'class' => 'mw-userlink' ) );
 836         }
 837
 838         /**
 839          * Generate standard user tool links (talk, contributions, block link, etc.)
 840          *
 841          * @param $userId Integer: user identifier
 842          * @param $userText String: user name or IP address
 843          * @param $redContribsWhenNoEdits Boolean: should the contributions link be
 844          *        red if the user has no edits?
 845          * @param $flags Integer: customisation flags (e.g. self::TOOL_LINKS_NOBLOCK)
 846          * @param $edits Integer: user edit count (optional, for performance)
 847          * @return String: HTML fragment
 848          */
 849         public function userToolLinks( $userId, $userText, $redContribsWhenNoEdits = false, $flags = 0, $edits=null ) {
 850                 global $wgUser, $wgDisableAnonTalk, $wgSysopUserBans, $wgLang;
 851                 $talkable = !( $wgDisableAnonTalk && 0 == $userId );
 852                 $blockable = ( $wgSysopUserBans || 0 == $userId ) && !$flags & self::TOOL_LINKS_NOBLOCK;
 853
 854                 $items = array();
 855                 if( $talkable ) {
 856                         $items[] = $this->userTalkLink( $userId, $userText );
 857                 }
 858                 if( $userId ) {
 859                         // check if the user has an edit
 860                         $attribs = array();
 861                         if( $redContribsWhenNoEdits ) {
 862                                 $count = !is_null($edits) ? $edits : User::edits( $userId );
 863                                 if( $count == 0 ) {
 864                                         $attribs['class'] = 'new';
 865                                 }
 866                         }
 867                         $contribsPage = SpecialPage::getTitleFor( 'Contributions', $userText );
 868
 869                         $items[] = $this->link( $contribsPage, wfMsgHtml( 'contribslink' ), $attribs );
 870                 }
 871                 if( $blockable && $wgUser->isAllowed( 'block' ) ) {
 872                         $items[] = $this->blockLink( $userId, $userText );
 873                 }
 874
 875                 if( $items ) {
 876                         return ' <span class="mw-usertoollinks">(' . $wgLang->pipeList( $items ) . ')</span>';
 877                 } else {
 878                         return '';
 879                 }
 880         }
 881
 882         /**
 883          * Alias for userToolLinks( $userId, $userText, true );
 884          * @param $userId Integer: user identifier
 885          * @param $userText String: user name or IP address
 886          * @param $edits Integer: user edit count (optional, for performance)
 887          */
 888         public function userToolLinksRedContribs( $userId, $userText, $edits=null ) {
 889                 return $this->userToolLinks( $userId, $userText, true, 0, $edits );
 890         }
 891
 892
 893         /**
 894          * @param $userId Integer: user id in database.
 895          * @param $userText String: user name in database.
 896          * @return String: HTML fragment with user talk link
 897          * @private
 898          */
 899         function userTalkLink( $userId, $userText ) {
 900                 $userTalkPage = Title::makeTitle( NS_USER_TALK, $userText );
 901                 $userTalkLink = $this->link( $userTalkPage, wfMsgHtml( 'talkpagelinktext' ) );
 902                 return $userTalkLink;
 903         }
 904
 905         /**
 906          * @param $userId Integer: userid
 907          * @param $userText String: user name in database.
 908          * @return String: HTML fragment with block link
 909          * @private
 910          */
 911         function blockLink( $userId, $userText ) {
 912                 $blockPage = SpecialPage::getTitleFor( 'Blockip', $userText );
 913                 $blockLink = $this->link( $blockPage, wfMsgHtml( 'blocklink' ) );
 914                 return $blockLink;
 915         }
 916
 917         /**
 918          * Generate a user link if the current user is allowed to view it
 919          * @param $rev Revision object.
 920          * @param $isPublic Boolean: show only if all users can see it
 921          * @return String: HTML fragment
 922          */
 923         function revUserLink( $rev, $isPublic = false ) {
 924                 if( $rev->isDeleted( Revision::DELETED_USER ) && $isPublic ) {
 925                         $link = wfMsgHtml( 'rev-deleted-user' );
 926                 } else if( $rev->userCan( Revision::DELETED_USER ) ) {
 927                         $link = $this->userLink( $rev->getUser( Revision::FOR_THIS_USER ),
 928                                 $rev->getUserText( Revision::FOR_THIS_USER ) );
 929                 } else {
 930                         $link = wfMsgHtml( 'rev-deleted-user' );
 931                 }
 932                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 933                         return '<span class="history-deleted">' . $link . '</span>';
 934                 }
 935                 return $link;
 936         }
 937
 938         /**
 939          * Generate a user tool link cluster if the current user is allowed to view it
 940          * @param $rev Revision object.
 941          * @param $isPublic Boolean: show only if all users can see it
 942          * @return string HTML
 943          */
 944         function revUserTools( $rev, $isPublic = false ) {
 945                 if( $rev->isDeleted( Revision::DELETED_USER ) && $isPublic ) {
 946                         $link = wfMsgHtml( 'rev-deleted-user' );
 947                 } else if( $rev->userCan( Revision::DELETED_USER ) ) {
 948                         $userId = $rev->getUser( Revision::FOR_THIS_USER );
 949                         $userText = $rev->getUserText( Revision::FOR_THIS_USER );
 950                         $link = $this->userLink( $userId, $userText ) .
 951                                 ' ' . $this->userToolLinks( $userId, $userText );
 952                 } else {
 953                         $link = wfMsgHtml( 'rev-deleted-user' );
 954                 }
 955                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 956                         return ' <span class="history-deleted">' . $link . '</span>';
 957                 }
 958                 return $link;
 959         }
 960
 961         /**
 962          * This function is called by all recent changes variants, by the page history,
 963          * and by the user contributions list. It is responsible for formatting edit
 964          * comments. It escapes any HTML in the comment, but adds some CSS to format
 965          * auto-generated comments (from section editing) and formats [[wikilinks]].
 966          *
 967          * @author Erik Moeller <moeller@scireview.de>
 968          *
 969          * Note: there's not always a title to pass to this function.
 970          * Since you can't set a default parameter for a reference, I've turned it
 971          * temporarily to a value pass. Should be adjusted further. --brion
 972          *
 973          * @param $comment String
 974          * @param $title Mixed: Title object (to generate link to the section in autocomment) or null
 975          * @param $local Boolean: whether section links should refer to local page
 976          */
 977         function formatComment($comment, $title = null, $local = false) {
 978                 wfProfileIn( __METHOD__ );
 979
 980                 # Sanitize text a bit:
 981                 $comment = str_replace( "\n", " ", $comment );
 982                 # Allow HTML entities (for bug 13815)
 983                 $comment = Sanitizer::escapeHtmlAllowEntities( $comment );
 984
 985                 # Render autocomments and make links:
 986                 $comment = $this->formatAutocomments( $comment, $title, $local );
 987                 $comment = $this->formatLinksInComment( $comment, $title, $local );
 988
 989                 wfProfileOut( __METHOD__ );
 990                 return $comment;
 991         }
 992
 993         /**
 994          * The pattern for autogen comments is / * foo * /, which makes for
 995          * some nasty regex.
 996          * We look for all comments, match any text before and after the comment,
 997          * add a separator where needed and format the comment itself with CSS
 998          * Called by Linker::formatComment.
 999          *
1000          * @param $comment String: comment text
1001          * @param $title An optional title object used to links to sections
1002          * @param $local Boolean: whether section links should refer to local page
1003          * @return String: formatted comment
1004          */
1005         private function formatAutocomments( $comment, $title = null, $local = false ) {
1006                 // Bah!
1007                 $this->autocommentTitle = $title;
1008                 $this->autocommentLocal = $local;
1009                 $comment = preg_replace_callback(
1010                         '!(.*)/\*\s*(.*?)\s*\*/(.*)!',
1011                         array( $this, 'formatAutocommentsCallback' ),
1012                         $comment );
1013                 unset( $this->autocommentTitle );
1014                 unset( $this->autocommentLocal );
1015                 return $comment;
1016         }
1017
1018         private function formatAutocommentsCallback( $match ) {
1019                 $title = $this->autocommentTitle;
1020                 $local = $this->autocommentLocal;
1021
1022                 $pre = $match[1];
1023                 $auto = $match[2];
1024                 $post = $match[3];
1025                 $link = '';
1026                 if ( $title ) {
1027                         $section = $auto;
1028
1029                         # Remove links that a user may have manually put in the autosummary
1030                         # This could be improved by copying as much of Parser::stripSectionName as desired.
1031                         $section = str_replace( '[[:', '', $section );
1032                         $section = str_replace( '[[', '', $section );
1033                         $section = str_replace( ']]', '', $section );
1034
1035                         $section = Sanitizer::normalizeSectionNameWhitespace( $section ); # bug 22784
1036                         if ( $local ) {
1037                                 $sectionTitle = Title::newFromText( '#' . $section );
1038                         } else {
1039                                 $sectionTitle = Title::makeTitleSafe( $title->getNamespace(),
1040                                         $title->getDBkey(), $section );
1041                         }
1042                         if ( $sectionTitle ) {
1043                                 $link = $this->link( $sectionTitle,
1044                                         htmlspecialchars( wfMsgForContent( 'sectionlink' ) ), array(), array(),
1045                                         'noclasses' );
1046                         } else {
1047                                 $link = '';
1048                         }
1049                 }
1050                 $auto = "$link$auto";
1051                 if( $pre ) {
1052                         # written summary $presep autocomment (summary /* section */)
1053                         $auto = wfMsgExt( 'autocomment-prefix', array( 'escapenoentities', 'content' ) ) . $auto;
1054                 }
1055                 if( $post ) {
1056                         # autocomment $postsep written summary (/* section */ summary)
1057                         $auto .= wfMsgExt( 'colon-separator', array( 'escapenoentities', 'content' ) );
1058                 }
1059                 $auto = '<span class="autocomment">' . $auto . '</span>';
1060                 $comment = $pre . $auto . $post;
1061                 return $comment;
1062         }
1063
1064         /**
1065          * Formats wiki links and media links in text; all other wiki formatting
1066          * is ignored
1067          *
1068          * @todo Fixme: doesn't handle sub-links as in image thumb texts like the main parser
1069          * @param $comment String: text to format links in
1070          * @param $title An optional title object used to links to sections
1071          * @param $local Boolean: whether section links should refer to local page
1072          * @return String
1073          */
1074         public function formatLinksInComment( $comment, $title = null, $local = false ) {
1075                 $this->commentContextTitle = $title;
1076                 $this->commentLocal = $local;
1077                 $html = preg_replace_callback(
1078                         '/\[\[:?(.*?)(\|(.*?))*\]\]([^[]*)/',
1079                         array( $this, 'formatLinksInCommentCallback' ),
1080                         $comment );
1081                 unset( $this->commentContextTitle );
1082                 unset( $this->commentLocal );
1083                 return $html;
1084         }
1085
1086         protected function formatLinksInCommentCallback( $match ) {
1087                 global $wgContLang;
1088
1089                 $medians = '(?:' . preg_quote( MWNamespace::getCanonicalName( NS_MEDIA ), '/' ) . '|';
1090                 $medians .= preg_quote( $wgContLang->getNsText( NS_MEDIA ), '/' ) . '):';
1091
1092                 $comment = $match[0];
1093
1094                 # fix up urlencoded title texts (copied from Parser::replaceInternalLinks)
1095                 if( strpos( $match[1], '%' ) !== false ) {
1096                         $match[1] = str_replace( array('<', '>'), array('&lt;', '&gt;'), urldecode($match[1]) );
1097                 }
1098
1099                 # Handle link renaming [[foo|text]] will show link as "text"
1100                 if( $match[3] != "" ) {
1101                         $text = $match[3];
1102                 } else {
1103                         $text = $match[1];
1104                 }
1105                 $submatch = array();
1106                 $thelink = null;
1107                 if( preg_match( '/^' . $medians . '(.*)$/i', $match[1], $submatch ) ) {
1108                         # Media link; trail not supported.
1109                         $linkRegexp = '/\[\[(.*?)\]\]/';
1110                         $title = Title::makeTitleSafe( NS_FILE, $submatch[1] );
1111                         $thelink = $this->makeMediaLinkObj( $title, $text );
1112                 } else {
1113                         # Other kind of link
1114                         if( preg_match( $wgContLang->linkTrail(), $match[4], $submatch ) ) {
1115                                 $trail = $submatch[1];
1116                         } else {
1117                                 $trail = "";
1118                         }
1119                         $linkRegexp = '/\[\[(.*?)\]\]' . preg_quote( $trail, '/' ) . '/';
1120                         if (isset($match[1][0]) && $match[1][0] == ':')
1121                                 $match[1] = substr($match[1], 1);
1122                         list( $inside, $trail ) = Linker::splitTrail( $trail );
1123
1124                         $linkText = $text;
1125                         $linkTarget = Linker::normalizeSubpageLink( $this->commentContextTitle,
1126                                 $match[1], $linkText );
1127
1128                         $target = Title::newFromText( $linkTarget );
1129                         if( $target ) {
1130                                 if( $target->getText() == '' && $target->getInterwiki() === ''
1131                                         && !$this->commentLocal && $this->commentContextTitle )
1132                                 {
1133                                         $newTarget = clone( $this->commentContextTitle );
1134                                         $newTarget->setFragment( '#' . $target->getFragment() );
1135                                         $target = $newTarget;
1136                                 }
1137                                 $thelink = $this->link(
1138                                         $target,
1139                                         $linkText . $inside
1140                                 ) . $trail;
1141                         }
1142                 }
1143                 if( $thelink ) {
1144                         // If the link is still valid, go ahead and replace it in!
1145                         $comment = preg_replace( $linkRegexp, StringUtils::escapeRegexReplacement( $thelink ), $comment, 1 );
1146                 }
1147
1148                 return $comment;
1149         }
1150
1151         static function normalizeSubpageLink( $contextTitle, $target, &$text ) {
1152                 # Valid link forms:
1153                 # Foobar -- normal
1154                 # :Foobar -- override special treatment of prefix (images, language links)
1155                 # /Foobar -- convert to CurrentPage/Foobar
1156                 # /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text
1157                 # ../ -- convert to CurrentPage, from CurrentPage/CurrentSubPage
1158                 # ../Foobar -- convert to CurrentPage/Foobar, from CurrentPage/CurrentSubPage
1159
1160                 wfProfileIn( __METHOD__ );
1161                 $ret = $target; # default return value is no change
1162
1163                 # Some namespaces don't allow subpages,
1164                 # so only perform processing if subpages are allowed
1165                 if( $contextTitle && MWNamespace::hasSubpages( $contextTitle->getNamespace() ) ) {
1166                         $hash = strpos( $target, '#' );
1167                         if( $hash !== false ) {
1168                                 $suffix = substr( $target, $hash );
1169                                 $target = substr( $target, 0, $hash );
1170                         } else {
1171                                 $suffix = '';
1172                         }
1173                         # bug 7425
1174                         $target = trim( $target );
1175                         # Look at the first character
1176                         if( $target != '' && $target{0} === '/' ) {
1177                                 # / at end means we don't want the slash to be shown
1178                                 $m = array();
1179                                 $trailingSlashes = preg_match_all( '%(/+)$%', $target, $m );
1180                                 if( $trailingSlashes ) {
1181                                         $noslash = $target = substr( $target, 1, -strlen($m[0][0]) );
1182                                 } else {
1183                                         $noslash = substr( $target, 1 );
1184                                 }
1185
1186                                 $ret = $contextTitle->getPrefixedText(). '/' . trim($noslash) . $suffix;
1187                                 if( $text === '' ) {
1188                                         $text = $target . $suffix;
1189                                 } # this might be changed for ugliness reasons
1190                         } else {
1191                                 # check for .. subpage backlinks
1192                                 $dotdotcount = 0;
1193                                 $nodotdot = $target;
1194                                 while( strncmp( $nodotdot, "../", 3 ) == 0 ) {
1195                                         ++$dotdotcount;
1196                                         $nodotdot = substr( $nodotdot, 3 );
1197                                 }
1198                                 if($dotdotcount > 0) {
1199                                         $exploded = explode( '/', $contextTitle->GetPrefixedText() );
1200                                         if( count( $exploded ) > $dotdotcount ) { # not allowed to go below top level page
1201                                                 $ret = implode( '/', array_slice( $exploded, 0, -$dotdotcount ) );
1202                                                 # / at the end means don't show full path
1203                                                 if( substr( $nodotdot, -1, 1 ) === '/' ) {
1204                                                         $nodotdot = substr( $nodotdot, 0, -1 );
1205                                                         if( $text === '' ) {
1206                                                                 $text = $nodotdot . $suffix;
1207                                                         }
1208                                                 }
1209                                                 $nodotdot = trim( $nodotdot );
1210                                                 if( $nodotdot != '' ) {
1211                                                         $ret .= '/' . $nodotdot;
1212                                                 }
1213                                                 $ret .= $suffix;
1214                                         }
1215                                 }
1216                         }
1217                 }
1218
1219                 wfProfileOut( __METHOD__ );
1220                 return $ret;
1221         }
1222
1223         /**
1224          * Wrap a comment in standard punctuation and formatting if
1225          * it's non-empty, otherwise return empty string.
1226          *
1227          * @param $comment String
1228          * @param $title Mixed: Title object (to generate link to section in autocomment) or null
1229          * @param $local Boolean: whether section links should refer to local page
1230          *
1231          * @return string
1232          */
1233         function commentBlock( $comment, $title = null, $local = false ) {
1234                 // '*' used to be the comment inserted by the software way back
1235                 // in antiquity in case none was provided, here for backwards
1236                 // compatability, acc. to brion -ævar
1237                 if( $comment == '' || $comment == '*' ) {
1238                         return '';
1239                 } else {
1240                         $formatted = $this->formatComment( $comment, $title, $local );
1241                         return " <span class=\"comment\">($formatted)</span>";
1242                 }
1243         }
1244
1245         /**
1246          * Wrap and format the given revision's comment block, if the current
1247          * user is allowed to view it.
1248          *
1249          * @param $rev Revision object
1250          * @param $local Boolean: whether section links should refer to local page
1251          * @param $isPublic Boolean: show only if all users can see it
1252          * @return String: HTML fragment
1253          */
1254         function revComment( Revision $rev, $local = false, $isPublic = false ) {
1255                 if( $rev->getRawComment() == "" ) return "";
1256                 if( $rev->isDeleted( Revision::DELETED_COMMENT ) && $isPublic ) {
1257                         $block = " <span class=\"comment\">" . wfMsgHtml( 'rev-deleted-comment' ) . "</span>";
1258                 } else if( $rev->userCan( Revision::DELETED_COMMENT ) ) {
1259                         $block = $this->commentBlock( $rev->getComment( Revision::FOR_THIS_USER ),
1260                                 $rev->getTitle(), $local );
1261                 } else {
1262                         $block = " <span class=\"comment\">" . wfMsgHtml( 'rev-deleted-comment' ) . "</span>";
1263                 }
1264                 if( $rev->isDeleted( Revision::DELETED_COMMENT ) ) {
1265                         return " <span class=\"history-deleted\">$block</span>";
1266                 }
1267                 return $block;
1268         }
1269
1270         public function formatRevisionSize( $size ) {
1271                 if ( $size == 0 ) {
1272                         $stxt = wfMsgExt( 'historyempty', 'parsemag' );
1273                 } else {
1274                         global $wgLang;
1275                         $stxt = wfMsgExt( 'nbytes', 'parsemag', $wgLang->formatNum( $size ) );
1276                         $stxt = "($stxt)";
1277                 }
1278                 $stxt = htmlspecialchars( $stxt );
1279                 return "<span class=\"history-size\">$stxt</span>";
1280         }
1281
1282         /**
1283          * Add another level to the Table of Contents
1284          */
1285         function tocIndent() {
1286                 return "\n<ul>";
1287         }
1288
1289         /**
1290          * Finish one or more sublevels on the Table of Contents
1291          */
1292         function tocUnindent($level) {
1293                 return "</li>\n" . str_repeat( "</ul>\n</li>\n", $level>0 ? $level : 0 );
1294         }
1295
1296         /**
1297          * parameter level defines if we are on an indentation level
1298          */
1299         function tocLine( $anchor, $tocline, $tocnumber, $level, $sectionIndex = false ) {
1300                 $classes = "toclevel-$level";
1301                 if ( $sectionIndex !== false )
1302                         $classes .= " tocsection-$sectionIndex";
1303                 return "\n<li class=\"$classes\"><a href=\"#" .
1304                         $anchor . '"><span class="tocnumber">' .
1305                         $tocnumber . '</span> <span class="toctext">' .
1306                         $tocline . '</span></a>';
1307         }
1308
1309         /**
1310          * End a Table Of Contents line.
1311          * tocUnindent() will be used instead if we're ending a line below
1312          * the new level.
1313          */
1314         function tocLineEnd() {
1315                 return "</li>\n";
1316         }
1317
1318         /**
1319          * Wraps the TOC in a table and provides the hide/collapse javascript.
1320          *
1321          * @param $toc String: html of the Table Of Contents
1322          * @return String: full html of the TOC
1323          */
1324         function tocList($toc) {
1325                 $title = wfMsgHtml('toc') ;
1326                 return
1327                    '<table id="toc" class="toc"><tr><td>'
1328                  . '<div id="toctitle"><h2>' . $title . "</h2></div>\n"
1329                  . $toc
1330                  # no trailing newline, script should not be wrapped in a
1331                  # paragraph
1332                  . "</ul>\n</td></tr></table>"
1333                  . Html::inlineScript(
1334                         'if (window.showTocToggle) {'
1335                         . ' var tocShowText = "' . Xml::escapeJsString( wfMsg('showtoc') ) . '";'
1336                         . ' var tocHideText = "' . Xml::escapeJsString( wfMsg('hidetoc') ) . '";'
1337                         . ' showTocToggle();'
1338                         . ' } ' )
1339                 . "\n";
1340         }
1341
1342         /**
1343          * Generate a table of contents from a section tree
1344          * Currently unused.
1345          *
1346          * @param $tree Return value of ParserOutput::getSections()
1347          * @return String: HTML fragment
1348          */
1349         public function generateTOC( $tree ) {
1350                 $toc = '';
1351                 $lastLevel = 0;
1352                 foreach ( $tree as $section ) {
1353                         if ( $section['toclevel'] > $lastLevel )
1354                                 $toc .= $this->tocIndent();
1355                         else if ( $section['toclevel'] < $lastLevel )
1356                                 $toc .= $this->tocUnindent(
1357                                         $lastLevel - $section['toclevel'] );
1358                         else
1359                                 $toc .= $this->tocLineEnd();
1360
1361                         $toc .= $this->tocLine( $section['anchor'],
1362                                 $section['line'], $section['number'],
1363                                 $section['toclevel'], $section['index'] );
1364                         $lastLevel = $section['toclevel'];
1365                 }
1366                 $toc .= $this->tocLineEnd();
1367                 return $this->tocList( $toc );
1368         }
1369
1370         /**
1371          * Create a section edit link.  This supersedes editSectionLink() and
1372          * editSectionLinkForOther().
1373          *
1374          * @param $nt      Title  The title being linked to (may not be the same as
1375          *   $wgTitle, if the section is included from a template)
1376          * @param $section string The designation of the section being pointed to,
1377          *   to be included in the link, like "&section=$section"
1378          * @param $tooltip string The tooltip to use for the link: will be escaped
1379          *   and wrapped in the 'editsectionhint' message
1380          * @return         string HTML to use for edit link
1381          */
1382         public function doEditSectionLink( Title $nt, $section, $tooltip = null ) {
1383                 // HTML generated here should probably have userlangattributes
1384                 // added to it for LTR text on RTL pages
1385                 $attribs = array();
1386                 if( !is_null( $tooltip ) ) {
1387                         $attribs['title'] = wfMsg( 'editsectionhint', $tooltip );
1388                 }
1389                 $link = $this->link( $nt, wfMsg('editsection'),
1390                         $attribs,
1391                         array( 'action' => 'edit', 'section' => $section ),
1392                         array( 'noclasses', 'known' )
1393                 );
1394
1395                 # Run the old hook.  This takes up half of the function . . . hopefully
1396                 # we can rid of it someday.
1397                 $attribs = '';
1398                 if( $tooltip ) {
1399                         $attribs = wfMsgHtml( 'editsectionhint', htmlspecialchars( $tooltip ) );
1400                         $attribs = " title=\"$attribs\"";
1401                 }
1402                 $result = null;
1403                 wfRunHooks( 'EditSectionLink', array( &$this, $nt, $section, $attribs, $link, &$result ) );
1404                 if( !is_null( $result ) ) {
1405                         # For reverse compatibility, add the brackets *after* the hook is
1406                         # run, and even add them to hook-provided text.  (This is the main
1407                         # reason that the EditSectionLink hook is deprecated in favor of
1408                         # DoEditSectionLink: it can't change the brackets or the span.)
1409                         $result = wfMsgHtml( 'editsection-brackets', $result );
1410                         return "<span class=\"editsection\">$result</span>";
1411                 }
1412
1413                 # Add the brackets and the span, and *then* run the nice new hook, with
1414                 # clean and non-redundant arguments.
1415                 $result = wfMsgHtml( 'editsection-brackets', $link );
1416                 $result = "<span class=\"editsection\">$result</span>";
1417
1418                 wfRunHooks( 'DoEditSectionLink', array( $this, $nt, $section, $tooltip, &$result ) );
1419                 return $result;
1420         }
1421
1422         /**
1423          * Create a headline for content
1424          *
1425          * @param $level Integer: the level of the headline (1-6)
1426          * @param $attribs String: any attributes for the headline, starting with
1427          *                 a space and ending with '>'
1428          *                 This *must* be at least '>' for no attribs
1429          * @param $anchor String: the anchor to give the headline (the bit after the #)
1430          * @param $text String: the text of the header
1431          * @param $link String: HTML to add for the section edit link
1432          * @param $legacyAnchor Mixed: a second, optional anchor to give for
1433          *   backward compatibility (false to omit)
1434          *
1435          * @return String: HTML headline
1436          */
1437         public function makeHeadline( $level, $attribs, $anchor, $text, $link, $legacyAnchor = false ) {
1438                 $ret = "<h$level$attribs"
1439                         . $link
1440                         . " <span class=\"mw-headline\" id=\"$anchor\">$text</span>"
1441                         . "</h$level>";
1442                 if ( $legacyAnchor !== false ) {
1443                         $ret = "<a id=\"$legacyAnchor\"></a>$ret";
1444                 }
1445                 return $ret;
1446         }
1447
1448         /**
1449          * Split a link trail, return the "inside" portion and the remainder of the trail
1450          * as a two-element array
1451          */
1452         static function splitTrail( $trail ) {
1453                 static $regex = false;
1454                 if ( $regex === false ) {
1455                         global $wgContLang;
1456                         $regex = $wgContLang->linkTrail();
1457                 }
1458                 $inside = '';
1459                 if ( $trail !== '' ) {
1460                         $m = array();
1461                         if ( preg_match( $regex, $trail, $m ) ) {
1462                                 $inside = $m[1];
1463                                 $trail = $m[2];
1464                         }
1465                 }
1466                 return array( $inside, $trail );
1467         }
1468
1469         /**
1470          * Generate a rollback link for a given revision.  Currently it's the
1471          * caller's responsibility to ensure that the revision is the top one. If
1472          * it's not, of course, the user will get an error message.
1473          *
1474          * If the calling page is called with the parameter &bot=1, all rollback
1475          * links also get that parameter. It causes the edit itself and the rollback
1476          * to be marked as "bot" edits. Bot edits are hidden by default from recent
1477          * changes, so this allows sysops to combat a busy vandal without bothering
1478          * other users.
1479          *
1480          * @param $rev Revision object
1481          */
1482         function generateRollback( $rev ) {
1483                 return '<span class="mw-rollback-link">['
1484                         . $this->buildRollbackLink( $rev )
1485                         . ']</span>';
1486         }
1487
1488         /**
1489          * Build a raw rollback link, useful for collections of "tool" links
1490          *
1491          * @param $rev Revision object
1492          * @return String: HTML fragment
1493          */
1494         public function buildRollbackLink( $rev ) {
1495                 global $wgRequest, $wgUser;
1496                 $title = $rev->getTitle();
1497                 $query = array(
1498                         'action' => 'rollback',
1499                         'from' => $rev->getUserText()
1500                 );
1501                 if( $wgRequest->getBool( 'bot' ) ) {
1502                         $query['bot'] = '1';
1503                         $query['hidediff'] = '1'; // bug 15999
1504                 }
1505                 $query['token'] = $wgUser->editToken( array( $title->getPrefixedText(),
1506                         $rev->getUserText() ) );
1507                 return $this->link( $title, wfMsgHtml( 'rollbacklink' ),
1508                         array( 'title' => wfMsg( 'tooltip-rollback' ) ),
1509                         $query, array( 'known', 'noclasses' ) );
1510         }
1511
1512         /**
1513          * Returns HTML for the "templates used on this page" list.
1514          *
1515          * @param $templates Array of templates from Article::getUsedTemplate
1516          * or similar
1517          * @param $preview Boolean: whether this is for a preview
1518          * @param $section Boolean: whether this is for a section edit
1519          * @return String: HTML output
1520          */
1521         public function formatTemplates( $templates, $preview = false, $section = false ) {
1522                 wfProfileIn( __METHOD__ );
1523
1524                 $outText = '';
1525                 if ( count( $templates ) > 0 ) {
1526                         # Do a batch existence check
1527                         $batch = new LinkBatch;
1528                         foreach( $templates as $title ) {
1529                                 $batch->addObj( $title );
1530                         }
1531                         $batch->execute();
1532
1533                         # Construct the HTML
1534                         $outText = '<div class="mw-templatesUsedExplanation">';
1535                         if ( $preview ) {
1536                                 $outText .= wfMsgExt( 'templatesusedpreview', array( 'parse' ), count( $templates ) );
1537                         } elseif ( $section ) {
1538                                 $outText .= wfMsgExt( 'templatesusedsection', array( 'parse' ), count( $templates ) );
1539                         } else {
1540                                 $outText .= wfMsgExt( 'templatesused', array( 'parse' ), count( $templates ) );
1541                         }
1542                         $outText .= "</div><ul>\n";
1543
1544                         usort( $templates, array( 'Title', 'compare' ) );
1545                         foreach ( $templates as $titleObj ) {
1546                                 $r = $titleObj->getRestrictions( 'edit' );
1547                                 if ( in_array( 'sysop', $r ) ) {
1548                                         $protected = wfMsgExt( 'template-protected', array( 'parseinline' ) );
1549                                 } elseif ( in_array( 'autoconfirmed', $r ) ) {
1550                                         $protected = wfMsgExt( 'template-semiprotected', array( 'parseinline' ) );
1551                                 } else {
1552                                         $protected = '';
1553                                 }
1554                                 if( $titleObj->quickUserCan( 'edit' ) ) {
1555                                         $editLink = $this->link(
1556                                                 $titleObj,
1557                                                 wfMsg( 'editlink' ),
1558                                                 array(),
1559                                                 array( 'action' => 'edit' )
1560                                         );
1561                                 } else {
1562                                         $editLink = $this->link(
1563                                                 $titleObj,
1564                                                 wfMsg( 'viewsourcelink' ),
1565                                                 array(),
1566                                                 array( 'action' => 'edit' )
1567                                         );
1568                                 }
1569                                 $outText .= '<li>' . $this->link( $titleObj ) . ' (' . $editLink . ') ' . $protected . '</li>';
1570                         }
1571                         $outText .= '</ul>';
1572                 }
1573                 wfProfileOut( __METHOD__  );
1574                 return $outText;
1575         }
1576
1577         /**
1578          * Returns HTML for the "hidden categories on this page" list.
1579          *
1580          * @param $hiddencats Array of hidden categories from Article::getHiddenCategories
1581          * or similar
1582          * @return String: HTML output
1583          */
1584         public function formatHiddenCategories( $hiddencats ) {
1585                 global $wgLang;
1586                 wfProfileIn( __METHOD__ );
1587
1588                 $outText = '';
1589                 if ( count( $hiddencats ) > 0 ) {
1590                         # Construct the HTML
1591                         $outText = '<div class="mw-hiddenCategoriesExplanation">';
1592                         $outText .= wfMsgExt( 'hiddencategories', array( 'parse' ), $wgLang->formatnum( count( $hiddencats ) ) );
1593                         $outText .= "</div><ul>\n";
1594
1595                         foreach ( $hiddencats as $titleObj ) {
1596                                 $outText .= '<li>' . $this->link( $titleObj, null, array(), array(), 'known' ) . "</li>\n"; # If it's hidden, it must exist - no need to check with a LinkBatch
1597                         }
1598                         $outText .= '</ul>';
1599                 }
1600                 wfProfileOut( __METHOD__  );
1601                 return $outText;
1602         }
1603
1604         /**
1605          * Format a size in bytes for output, using an appropriate
1606          * unit (B, KB, MB or GB) according to the magnitude in question
1607          *
1608          * @param $size Size to format
1609          * @return String
1610          */
1611         public function formatSize( $size ) {
1612                 global $wgLang;
1613                 return htmlspecialchars( $wgLang->formatSize( $size ) );
1614         }
1615
1616         /**
1617          * Given the id of an interface element, constructs the appropriate title
1618          * attribute from the system messages.  (Note, this is usually the id but
1619          * isn't always, because sometimes the accesskey needs to go on a different
1620          * element than the id, for reverse-compatibility, etc.)
1621          *
1622          * @param $name String: id of the element, minus prefixes.
1623          * @param $options Mixed: null or the string 'withaccess' to add an access-
1624          *   key hint
1625          * @return String: contents of the title attribute (which you must HTML-
1626          *   escape), or false for no title attribute
1627          */
1628         public function titleAttrib( $name, $options = null ) {
1629                 wfProfileIn( __METHOD__ );
1630
1631                 $tooltip = wfMsg( "tooltip-$name" );
1632                 # Compatibility: formerly some tooltips had [alt-.] hardcoded
1633                 $tooltip = preg_replace( "/ ?\[alt-.\]$/", '', $tooltip );
1634
1635                 # Message equal to '-' means suppress it.
1636                 if ( wfEmptyMsg( "tooltip-$name", $tooltip ) || $tooltip == '-' ) {
1637                         $tooltip = false;
1638                 }
1639
1640                 if ( $options == 'withaccess' ) {
1641                         $accesskey = $this->accesskey( $name );
1642                         if( $accesskey !== false ) {
1643                                 if ( $tooltip === false || $tooltip === '' ) {
1644                                         $tooltip = "[$accesskey]";
1645                                 } else {
1646                                         $tooltip .= " [$accesskey]";
1647                                 }
1648                         }
1649                 }
1650
1651                 wfProfileOut( __METHOD__ );
1652                 return $tooltip;
1653         }
1654
1655         /**
1656          * Given the id of an interface element, constructs the appropriate
1657          * accesskey attribute from the system messages.  (Note, this is usually
1658          * the id but isn't always, because sometimes the accesskey needs to go on
1659          * a different element than the id, for reverse-compatibility, etc.)
1660          *
1661          * @param $name String: id of the element, minus prefixes.
1662          * @return String: contents of the accesskey attribute (which you must HTML-
1663          *   escape), or false for no accesskey attribute
1664          */
1665         public function accesskey( $name ) {
1666                 wfProfileIn( __METHOD__ );
1667
1668                 $accesskey = wfMsg( "accesskey-$name" );
1669
1670                 # FIXME: Per standard MW behavior, a value of '-' means to suppress the
1671                 # attribute, but this is broken for accesskey: that might be a useful
1672                 # value.
1673                 if( $accesskey != '' && $accesskey != '-' && !wfEmptyMsg( "accesskey-$name", $accesskey ) ) {
1674                         wfProfileOut( __METHOD__ );
1675                         return $accesskey;
1676                 }
1677
1678                 wfProfileOut( __METHOD__ );
1679                 return false;
1680         }
1681
1682         /**
1683          * Creates a (show/hide) link for deleting revisions/log entries
1684          *
1685          * @param $query Array: query parameters to be passed to link()
1686          * @param $restricted Boolean: set to true to use a <strong> instead of a <span>
1687          * @param $delete Boolean: set to true to use (show/hide) rather than (show)
1688          *
1689          * @return String: HTML <a> link to Special:Revisiondelete, wrapped in a
1690          * span to allow for customization of appearance with CSS
1691          */
1692         public function revDeleteLink( $query = array(), $restricted = false, $delete = true ) {
1693                 $sp = SpecialPage::getTitleFor( 'Revisiondelete' );
1694                 $text = $delete ? wfMsgHtml( 'rev-delundel' ) : wfMsgHtml( 'rev-showdeleted' );
1695                 $tag = $restricted ? 'strong' : 'span';
1696                 $link = $this->link( $sp, $text, array(), $query, array( 'known', 'noclasses' ) );
1697                 return Xml::tags( $tag, array( 'class' => 'mw-revdelundel-link' ), "($link)" );
1698         }
1699
1700         /**
1701          * Creates a dead (show/hide) link for deleting revisions/log entries
1702          *
1703          * @param $delete Boolean: set to true to use (show/hide) rather than (show)
1704          *
1705          * @return string HTML text wrapped in a span to allow for customization
1706          * of appearance with CSS
1707          */
1708         public function revDeleteLinkDisabled( $delete = true ) {
1709                 $text = $delete ? wfMsgHtml( 'rev-delundel' ) : wfMsgHtml( 'rev-showdeleted' );
1710                 return Xml::tags( 'span', array( 'class' => 'mw-revdelundel-link' ), "($text)" );
1711         }
1712
1713         /* Deprecated methods */
1714
1715         /**
1716          * @deprecated
1717          */
1718         function postParseLinkColour( $s = null ) {
1719                 wfDeprecated( __METHOD__ );
1720                 return null;
1721         }
1722
1723
1724         /**
1725          * @deprecated Use link()
1726          *
1727          * This function is a shortcut to makeLinkObj(Title::newFromText($title),...). Do not call
1728          * it if you already have a title object handy. See makeLinkObj for further documentation.
1729          *
1730          * @param $title String: the text of the title
1731          * @param $text  String: link text
1732          * @param $query String: optional query part
1733          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
1734          *                      be included in the link text. Other characters will be appended after
1735          *                      the end of the link.
1736          */
1737         function makeLink( $title, $text = '', $query = '', $trail = '' ) {
1738                 wfProfileIn( __METHOD__ );
1739                 $nt = Title::newFromText( $title );
1740                 if ( $nt instanceof Title ) {
1741                         $result = $this->makeLinkObj( $nt, $text, $query, $trail );
1742                 } else {
1743                         wfDebug( 'Invalid title passed to Linker::makeLink(): "'.$title."\"\n" );
1744                         $result = $text == "" ? $title : $text;
1745                 }
1746
1747                 wfProfileOut( __METHOD__ );
1748                 return $result;
1749         }
1750
1751         /**
1752          * @deprecated Use link()
1753          *
1754          * This function is a shortcut to makeKnownLinkObj(Title::newFromText($title),...). Do not call
1755          * it if you already have a title object handy. See makeKnownLinkObj for further documentation.
1756          *
1757          * @param $title String: the text of the title
1758          * @param $text  String: link text
1759          * @param $query String: optional query part
1760          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
1761          *                      be included in the link text. Other characters will be appended after
1762          *                      the end of the link.
1763          * @param $prefix String: Optional prefix
1764          * @param $aprops String: extra attributes to the a-element
1765          */
1766         function makeKnownLink( $title, $text = '', $query = '', $trail = '', $prefix = '',$aprops = '') {
1767                 $nt = Title::newFromText( $title );
1768                 if ( $nt instanceof Title ) {
1769                         return $this->makeKnownLinkObj( $nt, $text, $query, $trail, $prefix , $aprops );
1770                 } else {
1771                         wfDebug( 'Invalid title passed to Linker::makeKnownLink(): "'.$title."\"\n" );
1772                         return $text == '' ? $title : $text;
1773                 }
1774         }
1775
1776         /**
1777          * @deprecated Use link()
1778          *
1779          * This function is a shortcut to makeBrokenLinkObj(Title::newFromText($title),...). Do not call
1780          * it if you already have a title object handy. See makeBrokenLinkObj for further documentation.
1781          *
1782          * @param $title String: The text of the title
1783          * @param $text String: Link text
1784          * @param $query String: Optional query part
1785          * @param $trail String: Optional trail. Alphabetic characters at the start of this string will
1786          *               be included in the link text. Other characters will be appended after
1787          *               the end of the link.
1788          */
1789         function makeBrokenLink( $title, $text = '', $query = '', $trail = '' ) {
1790                 $nt = Title::newFromText( $title );
1791                 if ( $nt instanceof Title ) {
1792                         return $this->makeBrokenLinkObj( $nt, $text, $query, $trail );
1793                 } else {
1794                         wfDebug( 'Invalid title passed to Linker::makeBrokenLink(): "'.$title."\"\n" );
1795                         return $text == '' ? $title : $text;
1796                 }
1797         }
1798
1799         /**
1800          * @deprecated Use link()
1801          *
1802          * This function is a shortcut to makeStubLinkObj(Title::newFromText($title),...). Do not call
1803          * it if you already have a title object handy. See makeStubLinkObj for further documentation.
1804          *
1805          * @param $title String: the text of the title
1806          * @param $text  String: link text
1807          * @param $query String: optional query part
1808          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
1809          *                      be included in the link text. Other characters will be appended after
1810          *                      the end of the link.
1811          */
1812         function makeStubLink( $title, $text = '', $query = '', $trail = '' ) {
1813                 wfDeprecated( __METHOD__ );
1814                 $nt = Title::newFromText( $title );
1815                 if ( $nt instanceof Title ) {
1816                         return $this->makeStubLinkObj( $nt, $text, $query, $trail );
1817                 } else {
1818                         wfDebug( 'Invalid title passed to Linker::makeStubLink(): "'.$title."\"\n" );
1819                         return $text == '' ? $title : $text;
1820                 }
1821         }
1822
1823         /**
1824          * @deprecated Use link()
1825          *
1826          * Make a link for a title which may or may not be in the database. If you need to
1827          * call this lots of times, pre-fill the link cache with a LinkBatch, otherwise each
1828          * call to this will result in a DB query.
1829          *
1830          * @param $nt     Title: the title object to make the link from, e.g. from
1831          *                      Title::newFromText.
1832          * @param $text  String: link text
1833          * @param $query String: optional query part
1834          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
1835          *                      be included in the link text. Other characters will be appended after
1836          *                      the end of the link.
1837          * @param $prefix String: optional prefix. As trail, only before instead of after.
1838          */
1839         function makeLinkObj( $nt, $text= '', $query = '', $trail = '', $prefix = '' ) {
1840                 wfProfileIn( __METHOD__ );
1841
1842                 $query = wfCgiToArray( $query );
1843                 list( $inside, $trail ) = Linker::splitTrail( $trail );
1844                 if( $text === '' ) {
1845                         $text = $this->linkText( $nt );
1846                 }
1847
1848                 $ret = $this->link( $nt, "$prefix$text$inside", array(), $query ) . $trail;
1849
1850                 wfProfileOut( __METHOD__ );
1851                 return $ret;
1852         }
1853
1854         /**
1855          * @deprecated Use link()
1856          *
1857          * Make a link for a title which definitely exists. This is faster than makeLinkObj because
1858          * it doesn't have to do a database query. It's also valid for interwiki titles and special
1859          * pages.
1860          *
1861          * @param $title  Title object of target page
1862          * @param $text   String: text to replace the title
1863          * @param $query  String: link target
1864          * @param $trail  String: text after link
1865          * @param $prefix String: text before link text
1866          * @param $aprops String: extra attributes to the a-element
1867          * @param $style  String: style to apply - if empty, use getInternalLinkAttributesObj instead
1868          * @return the a-element
1869          */
1870         function makeKnownLinkObj( $title, $text = '', $query = '', $trail = '', $prefix = '' , $aprops = '', $style = '' ) {
1871                 wfProfileIn( __METHOD__ );
1872
1873                 if ( $text == '' ) {
1874                         $text = $this->linkText( $title );
1875                 }
1876                 $attribs = Sanitizer::mergeAttributes(
1877                         Sanitizer::decodeTagAttributes( $aprops ),
1878                         Sanitizer::decodeTagAttributes( $style )
1879                 );
1880                 $query = wfCgiToArray( $query );
1881                 list( $inside, $trail ) = Linker::splitTrail( $trail );
1882
1883                 $ret = $this->link( $title, "$prefix$text$inside", $attribs, $query,
1884                         array( 'known', 'noclasses' ) ) . $trail;
1885
1886                 wfProfileOut( __METHOD__ );
1887                 return $ret;
1888         }
1889
1890         /**
1891          * @deprecated Use link()
1892          *
1893          * Make a red link to the edit page of a given title.
1894          *
1895          * @param $title Title object of the target page
1896          * @param $text  String: Link text
1897          * @param $query String: Optional query part
1898          * @param $trail String: Optional trail. Alphabetic characters at the start of this string will
1899          *                      be included in the link text. Other characters will be appended after
1900          *                      the end of the link.
1901          * @param $prefix String: Optional prefix
1902          */
1903         function makeBrokenLinkObj( $title, $text = '', $query = '', $trail = '', $prefix = '' ) {
1904                 wfProfileIn( __METHOD__ );
1905
1906                 list( $inside, $trail ) = Linker::splitTrail( $trail );
1907                 if( $text === '' ) {
1908                         $text = $this->linkText( $title );
1909                 }
1910                 $nt = $this->normaliseSpecialPage( $title );
1911
1912                 $ret = $this->link( $title, "$prefix$text$inside", array(),
1913                         wfCgiToArray( $query ), 'broken' ) . $trail;
1914
1915                 wfProfileOut( __METHOD__ );
1916                 return $ret;
1917         }
1918
1919         /**
1920          * @deprecated Use link()
1921          *
1922          * Make a brown link to a short article.
1923          *
1924          * @param $nt Title object of the target page
1925          * @param $text  String: link text
1926          * @param $query String: optional query part
1927          * @param $trail String: optional trail. Alphabetic characters at the start of this string will
1928          *                      be included in the link text. Other characters will be appended after
1929          *                      the end of the link.
1930          * @param $prefix String: Optional prefix
1931          */
1932         function makeStubLinkObj( $nt, $text = '', $query = '', $trail = '', $prefix = '' ) {
1933                 //wfDeprecated( __METHOD__ );
1934                 return $this->makeColouredLinkObj( $nt, 'stub', $text, $query, $trail, $prefix );
1935         }
1936
1937         /**
1938          * @deprecated Use link()
1939          *
1940          * Make a coloured link.
1941          *
1942          * @param $nt Title object of the target page
1943          * @param $colour Integer: colour of the link
1944          * @param $text   String:  link text
1945          * @param $query  String:  optional query part
1946          * @param $trail  String:  optional trail. Alphabetic characters at the start of this string will
1947          *                      be included in the link text. Other characters will be appended after
1948          *                      the end of the link.
1949          * @param $prefix String: Optional prefix
1950          */
1951         function makeColouredLinkObj( $nt, $colour, $text = '', $query = '', $trail = '', $prefix = '' ) {
1952                 //wfDeprecated( __METHOD__ );
1953                 if($colour != ''){
1954                         $style = $this->getInternalLinkAttributesObj( $nt, $text, $colour );
1955                 } else $style = '';
1956                 return $this->makeKnownLinkObj( $nt, $text, $query, $trail, $prefix, '', $style );
1957         }
1958
1959         /** Obsolete alias */
1960         function makeImage( $url, $alt = '' ) {
1961                 wfDeprecated( __METHOD__ );
1962                 return $this->makeExternalImage( $url, $alt );
1963         }
1964
1965         /**
1966          * Creates the HTML source for images
1967          * @deprecated use makeImageLink2
1968          *
1969          * @param $title Title object
1970          * @param $label String: label text
1971          * @param $alt String: alt text
1972          * @param $align String: horizontal alignment: none, left, center, right)
1973          * @param $handlerParams Array: parameters to be passed to the media handler
1974          * @param $framed Boolean: shows image in original size in a frame
1975          * @param $thumb Boolean: shows image as thumbnail in a frame
1976          * @param $manualthumb String: image name for the manual thumbnail
1977          * @param $valign String: vertical alignment: baseline, sub, super, top, text-top, middle, bottom, text-bottom
1978          * @param $time String: timestamp of the file, set as false for current
1979          * @return String
1980          */
1981         function makeImageLinkObj( $title, $label, $alt, $align = '', $handlerParams = array(), $framed = false,
1982           $thumb = false, $manualthumb = '', $valign = '', $time = false )
1983         {
1984                 $frameParams = array( 'alt' => $alt, 'caption' => $label );
1985                 if ( $align ) {
1986                         $frameParams['align'] = $align;
1987                 }
1988                 if ( $framed ) {
1989                         $frameParams['framed'] = true;
1990                 }
1991                 if ( $thumb ) {
1992                         $frameParams['thumbnail'] = true;
1993                 }
1994                 if ( $manualthumb ) {
1995                         $frameParams['manualthumb'] = $manualthumb;
1996                 }
1997                 if ( $valign ) {
1998                         $frameParams['valign'] = $valign;
1999                 }
2000                 $file = wfFindFile( $title, array( 'time' => $time ) );
2001                 return $this->makeImageLink2( $title, $file, $frameParams, $handlerParams, $time );
2002         }
2003
2004         /** @deprecated use Linker::makeMediaLinkObj() */
2005         function makeMediaLink( $name, $unused = '', $text = '', $time = false ) {
2006                 $nt = Title::makeTitleSafe( NS_FILE, $name );
2007                 return $this->makeMediaLinkObj( $nt, $text, $time );
2008         }
2009
2010         /**
2011          * Used to generate section edit links that point to "other" pages
2012          * (sections that are really part of included pages).
2013          *
2014          * @deprecated use Linker::doEditSectionLink()
2015          * @param $title Title string.
2016          * @param $section Integer: section number.
2017          */
2018         public function editSectionLinkForOther( $title, $section ) {
2019                 wfDeprecated( __METHOD__ );
2020                 $title = Title::newFromText( $title );
2021                 return $this->doEditSectionLink( $title, $section );
2022         }
2023
2024         /**
2025          * @deprecated use Linker::doEditSectionLink()
2026          * @param $nt Title object.
2027          * @param $section Integer: section number.
2028          * @param $hint Link String: title, or default if omitted or empty
2029          */
2030         public function editSectionLink( Title $nt, $section, $hint = '' ) {
2031                 wfDeprecated( __METHOD__ );
2032                 if( $hint === '' ) {
2033                         # No way to pass an actual empty $hint here!  The new interface al-
2034                         # lows this, so we have to do this for compatibility.
2035                         $hint = null;
2036                 }
2037                 return $this->doEditSectionLink( $nt, $section, $hint );
2038         }
2039
2040         /**
2041          * Returns the attributes for the tooltip and access key
2042          */
2043         public function tooltipAndAccesskeyAttribs( $name ) {
2044                 global $wgEnableTooltipsAndAccesskeys;
2045                 if ( !$wgEnableTooltipsAndAccesskeys )
2046                         return array();
2047                 # FIXME: If Sanitizer::expandAttributes() treated "false" as "output
2048                 # no attribute" instead of "output '' as value for attribute", this
2049                 # would be three lines.
2050                 $attribs = array(
2051                         'title' => $this->titleAttrib( $name, 'withaccess' ),
2052                         'accesskey' => $this->accesskey( $name )
2053                 );
2054                 if ( $attribs['title'] === false ) {
2055                         unset( $attribs['title'] );
2056                 }
2057                 if ( $attribs['accesskey'] === false ) {
2058                         unset( $attribs['accesskey'] );
2059                 }
2060                 return $attribs;
2061         }
2062         /**
2063          * @deprecated Returns raw bits of HTML, use titleAttrib() and accesskey()
2064          */
2065         public function tooltipAndAccesskey( $name ) {
2066                 return Xml::expandAttributes( $this->tooltipAndAccesskeyAttribs( $name ) );
2067         }
2068
2069
2070         /** @deprecated Returns raw bits of HTML, use titleAttrib() */
2071         public function tooltip( $name, $options = null ) {
2072                 global $wgEnableTooltipsAndAccesskeys;
2073                 if ( !$wgEnableTooltipsAndAccesskeys )
2074                         return '';
2075                 # FIXME: If Sanitizer::expandAttributes() treated "false" as "output
2076                 # no attribute" instead of "output '' as value for attribute", this
2077                 # would be two lines.
2078                 $tooltip = $this->titleAttrib( $name, $options );
2079                 if ( $tooltip === false ) {
2080                         return '';
2081                 }
2082                 return Xml::expandAttributes( array(
2083                         'title' => $this->titleAttrib( $name, $options )
2084                 ) );
2085         }
2086 }