includes/specials/SpecialAllmessages.php

   1 <?php
   2 /**
   3  * Use this special page to get a list of the MediaWiki system messages.
   4  * @file
   5  * @ingroup SpecialPage
   6  */
   7 class SpecialAllmessages extends SpecialPage {
   8
   9         /**
  10          * Constructor
  11          */
  12         public function __construct() {
  13                 parent::__construct( 'Allmessages' );
  14         }
  15
  16         /**
  17          * Execute
  18          */
  19         function execute( $par ) {
  20                 global $wgOut, $wgRequest;
  21
  22                 $this->setHeaders();
  23
  24                 global $wgUseDatabaseMessages;
  25                 if( !$wgUseDatabaseMessages ) {
  26                         $wgOut->addWikiMsg( 'allmessagesnotsupportedDB' );
  27                         return;
  28                 } else {
  29                         $this->outputHeader( 'allmessagestext' );
  30                 }
  31
  32                 $this->filter = $wgRequest->getVal( 'filter', 'all' );
  33                 $this->prefix = $wgRequest->getVal( 'prefix', '' );
  34
  35                 $this->table = new AllmessagesTablePager( $this,
  36                                                                                         $conds=array(),
  37                                                                                         wfGetLangObj( $wgRequest->getVal( 'lang', false ) ) );
  38
  39                 $this->langCode = $this->table->lang->getCode();
  40
  41                 $wgOut->addHTML( $this->buildForm() .
  42                         $this->table->getNavigationBar() .
  43                         $this->table->getLimitForm() .
  44                         $this->table->getBody() .
  45                         $this->table->getNavigationBar() );
  46
  47         }
  48
  49         function buildForm() {
  50                 global $wgScript;
  51
  52                 $languages = Language::getLanguageNames( false );
  53                 ksort( $languages );
  54
  55                 $out  = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript, 'id' => 'mw-allmessages-form' ) ) .
  56                         Xml::fieldset( wfMsg( 'allmessages-filter-legend' ) ) .
  57                         Xml::hidden( 'title', $this->getTitle() ) .
  58                         Xml::openElement( 'table', array( 'class' => 'mw-allmessages-table' ) ) . "\n" .
  59                         '<tr>
  60                                 <td class="mw-label">' .
  61                                         Xml::label( wfMsg( 'allmessages-prefix' ), 'mw-allmessages-form-prefix' ) .
  62                                 "</td>\n
  63                                 <td class=\"mw-input\">" .
  64                                         Xml::input( 'prefix', 20, str_replace( '_', ' ', $this->prefix ), array( 'id' => 'mw-allmessages-form-prefix' ) ) .
  65                                 "</td>\n
  66                         </tr>
  67                         <tr>\n
  68                                 <td class='mw-label'>" .
  69                                         Xml::label( wfMsg( 'allmessages-filter' ), 'mw-allmessages-form-filter' ) .
  70                                 "</td>\n
  71                                 <td class='mw-input'>" .
  72                                         Xml::radioLabel( wfMsg( 'allmessages-filter-unmodified' ),
  73                                                 'filter',
  74                                                 'unmodified',
  75                                                 'mw-allmessages-form-filter-unmodified',
  76                                                 ( $this->filter == 'unmodified' ? true : false )
  77                                         ) .
  78                                         Xml::radioLabel( wfMsg( 'allmessages-filter-all' ),
  79                                                 'filter',
  80                                                 'all',
  81                                                 'mw-allmessages-form-filter-all',
  82                                                 ( $this->filter == 'all' ? true : false )
  83                                         ) .
  84                                         Xml::radioLabel( wfMsg( 'allmessages-filter-modified' ),
  85                                                 'filter',
  86                                                 'modified',
  87                                                 'mw-allmessages-form-filter-modified',
  88                                         ( $this->filter == 'modified' ? true : false )
  89                                 ) .
  90                                 "</td>\n
  91                         </tr>
  92                         <tr>\n
  93                                 <td class=\"mw-label\">" .
  94                                         Xml::label( wfMsg( 'allmessages-language' ), 'mw-allmessages-form-lang' ) .
  95                                 "</td>\n
  96                                 <td class=\"mw-input\">" .
  97                                         Xml::openElement( 'select', array( 'id' => 'mw-allmessages-form-lang', 'name' => 'lang' ) );
  98
  99                 foreach( $languages as $lang => $name ) {
 100                         $selected = $lang == $this->langCode ? true : false;
 101                         $out .= Xml::option( $lang . ' - ' . $name, $lang, $selected ) . "\n";
 102                 }
 103                 $out .= Xml::closeElement( 'select' ) .
 104                                 "</td>\n
 105                         </tr>
 106                         <tr>\n
 107                                 <td></td>
 108                                 <td>" .
 109                                         Xml::submitButton( wfMsg( 'allmessages-filter-submit' ) ) .
 110                                 "</td>\n
 111                         </tr>" .
 112                         Xml::closeElement( 'table' ) .
 113                         $this->table->getHiddenFields( array( 'title', 'prefix', 'filter', 'lang' ) ) .
 114                         Xml::closeElement( 'fieldset' ) .
 115                         Xml::closeElement( 'form' );
 116                 return $out;
 117         }
 118 }
 119
 120 /* use TablePager for prettified output. We have to pretend that we're
 121  * getting data from a table when in fact not all of it comes from the database.
 122  */
 123 class AllmessagesTablePager extends TablePager {
 124
 125         var $messages  = NULL;
 126         var $talkPages = NULL;
 127
 128         function __construct( $page, $conds, $langObj = NULL ) {
 129                 parent::__construct();
 130                 $this->mIndexField = 'am_title';
 131                 $this->mPage = $page;
 132                 $this->mConds = $conds;
 133                 $this->mDefaultDirection = true;        //always sort ascending
 134
 135                 global $wgLang, $wgContLang, $wgRequest;
 136
 137                 $this->talk = $wgLang->lc( htmlspecialchars( wfMsg( 'talkpagelinktext' ) ) );
 138
 139                 $this->lang = ( $langObj ? $langObj : $wgContLang );
 140                 $this->langcode = $this->lang->getCode();
 141                 $this->foreign  = $this->langcode != $wgContLang->getCode();
 142
 143                 if( $wgRequest->getVal( 'filter', 'all' ) === 'all' ){
 144                         $this->custom = NULL;   //So won't match in either case
 145                 } else {
 146                         $this->custom = $wgRequest->getVal( 'filter' ) == 'unmodified' ? 1 : 0;
 147                 }
 148
 149                 $prefix = $wgLang->ucfirst( $wgRequest->getVal( 'prefix', '' ) );
 150                 $prefix = $prefix != '' ? Title::makeTitleSafe( NS_MEDIAWIKI, $wgRequest->getVal( 'prefix', NULL ) ) : NULL;
 151                 if( $prefix !== NULL ){
 152                         $this->prefix = '/^' . preg_quote( $prefix->getDBkey() ) . '/i';
 153                 } else {
 154                         $this->prefix = false;
 155                 }
 156                 $this->getSkin();
 157
 158                 //The suffix that may be needed for message names if we're in a
 159                 //different language (eg [[MediaWiki:Foo/fr]]: $suffix = '/fr'
 160                 if( $this->foreign ) {
 161                         $this->suffix = '/' . $this->langcode;
 162                 } else {
 163                         $this->suffix = '';
 164                 }
 165         }
 166
 167         function getAllMessages( $desc ){
 168
 169                 wfProfileIn( __METHOD__ . '-cache' );
 170
 171                 # Make sure all extension messages are available
 172                 global $wgMessageCache;
 173                 $wgMessageCache->loadAllMessages( 'en' );
 174                 $sortedArray = Language::getMessagesFor( 'en' );
 175                 if( $desc ){
 176                         krsort( $sortedArray );
 177                 } else {
 178                         ksort( $sortedArray );
 179                 }
 180
 181                 $this->messages = array();
 182                 foreach( $sortedArray as $key => $value ) {
 183                         // All messages start with lowercase, but wikis might have both
 184                         // upper and lowercase MediaWiki: pages if $wgCapitalLinks=false.
 185                         $ukey = $this->lang->ucfirst( $key );
 186
 187                         // The value without any overrides from the MediaWiki: namespace
 188                         $this->messages[$ukey]['default'] = wfMsgGetKey( $key, /*useDB*/false, $this->langcode, false );
 189
 190                         // The message that's actually used by the site
 191                         $this->messages[$ukey]['actual'] = wfMsgGetKey( $key, /*useDB*/true, $this->langcode, false );
 192
 193                         $this->messages[$ukey]['customised'] = 0; //for now
 194
 195                         $sortedArray[$key] = NULL; // trade bytes from $sortedArray to this
 196                 }
 197
 198                 wfProfileOut( __METHOD__ . '-cache' );
 199
 200                 return true;
 201         }
 202
 203         # We only need a list of which messages have *been* customised;
 204         # their content is already in the message cache.
 205         function markCustomisedMessages(){
 206                 $this->talkPages = array();
 207
 208                 wfProfileIn( __METHOD__ . "-db" );
 209
 210                 $dbr = wfGetDB( DB_SLAVE );
 211                 $res = $dbr->select( 'page',
 212                         array( 'page_namespace', 'page_title' ),
 213                         array( 'page_namespace' => array(NS_MEDIAWIKI,NS_MEDIAWIKI_TALK) ),
 214                         __METHOD__,
 215                         array( 'USE INDEX' => 'name_title' )
 216                 );
 217
 218                 while( $s = $dbr->fetchObject( $res ) ) {
 219                         if( $s->page_namespace == NS_MEDIAWIKI ){
 220                                 if( $this->foreign ){
 221                                         $title = explode( '/', $s->page_title );
 222                                         if( count($title) === 2 && $this->langcode == $title[1] && array_key_exists( $title[0], $this->messages ) ){
 223                                                 $this->messages["{$title[0]}"]['customised'] = 1;
 224                                         }
 225                                 } else if( array_key_exists( $s->page_title , $this->messages ) ){
 226                                         $this->messages[$s->page_title]['customised'] = 1;
 227                                 }
 228                         } else if( $s->page_namespace == NS_MEDIAWIKI_TALK ){
 229                                 $this->talkPages[$s->page_title] = 1;
 230                         }
 231                 }
 232                 $dbr->freeResult( $res );
 233
 234                 wfProfileOut( __METHOD__ . "-db" );
 235
 236                 return true;
 237         }
 238
 239         /* This function normally does a database query to get the results; we need
 240          * to make a pretend result using a FakeResultWrapper.
 241          */
 242         function reallyDoQuery( $offset , $limit , $descending ){
 243                 $mResult = new FakeResultWrapper( array() );
 244
 245                 if( !$this->messages ) $this->getAllMessages( $descending );
 246                 if( $this->talkPages === NULL ) $this->markCustomisedMessages();
 247
 248                 $count = 0;
 249                 foreach( $this->messages as $key => $value ){
 250                         if( $value['customised'] !== $this->custom &&
 251                                 ( $descending && ( $key < $offset || !$offset ) || !$descending && $key > $offset ) &&
 252                                 (( $this->prefix && preg_match( $this->prefix, $key ) ) || $this->prefix === false )
 253                         ){
 254                                 $mResult->result[] = array(
 255                                         'am_title'      => $key,
 256                                         'am_actual'     => $value['actual'],
 257                                         'am_default'    => $value['default'],
 258                                         'am_customised' => $value['customised'],
 259                                 );
 260                                 unset( $this->messages[$key] ); // save a few bytes
 261                                 $count++;
 262                         }
 263                         if( $count == $limit ) break;
 264                 }
 265                 unset( $this->messages ); //no longer needed, free up some memory
 266                 return $mResult;
 267         }
 268
 269         function getStartBody() {
 270                 return "<table border=\"1\" class=\"TablePager\" style=\"width:100%;\" id=\"allmessagestable\"><thead>\n<tr>" .
 271                         "<th rowspan=\"2\">" . wfMsg('allmessagesname') . "</th><th>" . wfMsg('allmessagesdefault') .
 272                         "</tr>\n<tr><th>" . wfMsg('allmessagescurrent') . "</th></tr>\n";
 273         }
 274
 275         function formatValue( $field , $value ){
 276                 global $wgLang;
 277                 switch( $field ){
 278
 279                         case 'am_title' :
 280
 281                                 $title = Title::makeTitle( NS_MEDIAWIKI, $value . $this->suffix );
 282                                 $talk  = Title::makeTitle( NS_MEDIAWIKI_TALK, $value . $this->suffix );
 283
 284                                 if( $this->mCurrentRow->am_customised ){
 285                                         $title = $this->mSkin->linkKnown( $title, $wgLang->lcfirst( $value ) );
 286                                 } else {
 287                                         $title = $this->mSkin->link( $title,
 288                                                                                                 $wgLang->lcfirst( $value ),
 289                                                                                                 array(),
 290                                                                                                 array(),
 291                                                                                                 array( 'broken' ) );
 292                                 }
 293                                 if( array_key_exists( $talk->getDBkey() , $this->talkPages ) ) {
 294                                         $talk = $this->mSkin->linkKnown( $talk , $this->talk );
 295                                 } else {
 296                                         $talk = $this->mSkin->link( $talk,
 297                                                                                                 $this->talk,
 298                                                                                                 array(),
 299                                                                                                 array(),
 300                                                                                                 array( 'broken' ) );
 301                                 }
 302                                 return $title . ' (' . $talk . ')';
 303
 304                         case 'am_default' :
 305                                 return Sanitizer::escapeHtmlAllowEntities( $value, ENT_QUOTES );
 306                         case 'am_actual' :
 307                                 return Sanitizer::escapeHtmlAllowEntities( $value, ENT_QUOTES );
 308                 }
 309                 return '';
 310         }
 311
 312         function formatRow( $row ){
 313                 //Do all the normal stuff
 314                 $s = parent::formatRow( $row );
 315
 316                 //But if there's a customised message, add that too.
 317                 if( $row->am_customised ){
 318                         $s .= Xml::openElement( 'tr', $this->getRowAttrs( $row, true ) );
 319                         $formatted = strval( $this->formatValue( 'am_actual', $row->am_actual ) );
 320                         if ( $formatted == '' ) {
 321                                 $formatted = '&nbsp;';
 322                         }
 323                         $s .= Xml::tags( 'td', $this->getCellAttrs( 'am_actual', $row->am_actual ), $formatted )
 324                                 . "</tr>\n";
 325                 }
 326                 return $s;
 327         }
 328
 329         function getRowAttrs( $row, $isSecond=false ){
 330                 $arr = array();
 331                 global $wgLang;
 332                 if( $row->am_customised ){
 333                         $arr['class'] =  'allmessages-customised';
 334                 }
 335                 if( !$isSecond ){
 336                         $arr['id'] = Sanitizer::escapeId( 'msg_' . $wgLang->lcfirst( $row->am_title ) );
 337                 }
 338                 return $arr;
 339         }
 340
 341         function getCellAttrs( $field, $value ){
 342                 if( $this->mCurrentRow->am_customised && $field == 'am_title' ){
 343                         return array( 'rowspan' => '2', 'class' => $field );
 344                 } else {
 345                         return array( 'class' => $field );
 346                 }
 347         }
 348
 349         // This is not actually used, as getStartBody is overridden above
 350         function getFieldNames() {
 351                 return array( 'am_title' => wfMsg('allmessagesname'),
 352                         'am_default' => wfMsg('allmessagesdefault') );
 353         }
 354         function getTitle() {
 355                 return SpecialPage::getTitleFor( 'Allmessages', false );
 356         }
 357         function isFieldSortable( $x ){
 358                 return false;
 359         }
 360         function getDefaultSort(){
 361                 return '';
 362         }
 363         function getQueryInfo(){
 364                 return '';
 365         }
 366 }
 367 /* Overloads the relevant methods of the real ResultsWrapper so it
 368  * doesn't go anywhere near an actual database.
 369  */
 370 class FakeResultWrapper extends ResultWrapper {
 371
 372         var $result     = array();
 373         var $db         = NULL;         //And it's going to stay that way :D
 374         var $pos        = 0;
 375         var $currentRow = NULL;
 376
 377         function __construct( $array ){
 378                 $this->result = $array;
 379         }
 380
 381         function numRows() {
 382                 return count( $this->result );
 383         }
 384
 385         function fetchRow() {
 386                 $this->currentRow = $this->result[$this->pos++];
 387                 return $this->currentRow;
 388         }
 389
 390         function seek( $row ) {
 391                 $this->pos = $row;
 392         }
 393
 394         function free() {}
 395
 396         // Callers want to be able to access fields with $this->fieldName
 397         function fetchObject(){
 398                 $this->currentRow = $this->result[$this->pos++];
 399                 return (object)$this->currentRow;
 400         }
 401
 402         function rewind() {
 403                 $this->pos = 0;
 404                 $this->currentRow = NULL;
 405         }
 406 }