includes/SpecialContributions.php

   1 <?php
   2 /**
   3  * @package MediaWiki
   4  * @subpackage SpecialPage
   5  */
   6
   7 /** @package MediaWiki */
   8 class ContribsFinder {
   9         var $username, $offset, $limit, $namespace;
  10         var $dbr;
  11
  12         function ContribsFinder( $username ) {
  13                 $this->username = $username;
  14                 $this->namespace = false;
  15                 $this->dbr =& wfGetDB( DB_SLAVE );
  16         }
  17
  18         function setNamespace( $ns ) {
  19                 $this->namespace = $ns;
  20         }
  21
  22         function setLimit( $limit ) {
  23                 $this->limit = $limit;
  24         }
  25
  26         function setOffset( $offset ) {
  27                 $this->offset = $offset;
  28         }
  29
  30         function getEditLimit( $dir ) {
  31                 list( $index, $usercond ) = $this->getUserCond();
  32                 $nscond = $this->getNamespaceCond();
  33                 $use_index = $this->dbr->useIndexClause( $index );
  34                 list( $revision, $page) = $this->dbr->tableNamesN( 'revision', 'page' );
  35                 $sql =  "SELECT rev_timestamp " .
  36                         " FROM $page,$revision $use_index " .
  37                         " WHERE rev_page=page_id AND $usercond $nscond" .
  38                         " ORDER BY rev_timestamp $dir LIMIT 1";
  39
  40                 $res = $this->dbr->query( $sql, __METHOD__ );
  41                 $row = $this->dbr->fetchObject( $res );
  42                 if ( $row ) {
  43                         return $row->rev_timestamp;
  44                 } else {
  45                         return false;
  46                 }
  47         }
  48
  49         function getEditLimits() {
  50                 return array(
  51                         $this->getEditLimit( "ASC" ),
  52                         $this->getEditLimit( "DESC" )
  53                 );
  54         }
  55
  56         function getUserCond() {
  57                 $condition = '';
  58
  59                 if ( $this->username == 'newbies' ) {
  60                         $max = $this->dbr->selectField( 'user', 'max(user_id)', false, 'make_sql' );
  61                         $condition = '>' . (int)($max - $max / 100);
  62                 }
  63
  64                 if ( $condition == '' ) {
  65                         $condition = ' rev_user_text=' . $this->dbr->addQuotes( $this->username );
  66                         $index = 'usertext_timestamp';
  67                 } else {
  68                         $condition = ' rev_user '.$condition ;
  69                         $index = 'user_timestamp';
  70                 }
  71                 return array( $index, $condition );
  72         }
  73
  74         function getNamespaceCond() {
  75                 if ( $this->namespace !== false )
  76                         return ' AND page_namespace = ' . (int)$this->namespace;
  77                 return '';
  78         }
  79
  80         function getPreviousOffsetForPaging() {
  81                 list( $index, $usercond ) = $this->getUserCond();
  82                 $nscond = $this->getNamespaceCond();
  83
  84                 $use_index = $this->dbr->useIndexClause( $index );
  85                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
  86
  87                 $sql =  "SELECT rev_timestamp FROM $page, $revision $use_index " .
  88                         "WHERE page_id = rev_page AND rev_timestamp > '" . $this->offset . "' AND " .
  89                         $usercond . $nscond;
  90                 $sql .= " ORDER BY rev_timestamp ASC";
  91                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
  92                 $res = $this->dbr->query( $sql );
  93
  94                 $numRows = $this->dbr->numRows( $res );
  95                 if ( $numRows ) {
  96                         $this->dbr->dataSeek( $res, $numRows - 1 );
  97                         $row = $this->dbr->fetchObject( $res );
  98                         $offset = $row->rev_timestamp;
  99                 } else {
 100                         $offset = false;
 101                 }
 102                 $this->dbr->freeResult( $res );
 103                 return $offset;
 104         }
 105
 106         function getFirstOffsetForPaging() {
 107                 list( $index, $usercond ) = $this->getUserCond();
 108                 $use_index = $this->dbr->useIndexClause( $index );
 109                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 110                 $nscond = $this->getNamespaceCond();
 111                 $sql =  "SELECT rev_timestamp FROM $page, $revision $use_index " .
 112                         "WHERE page_id = rev_page AND " .
 113                         $usercond . $nscond;
 114                 $sql .= " ORDER BY rev_timestamp ASC";
 115                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 116                 $res = $this->dbr->query( $sql );
 117
 118                 $numRows = $this->dbr->numRows( $res );
 119                 if ( $numRows ) {
 120                         $this->dbr->dataSeek( $res, $numRows - 1 );
 121                         $row = $this->dbr->fetchObject( $res );
 122                         $offset = $row->rev_timestamp;
 123                 } else {
 124                         $offset = false;
 125                 }
 126                 $this->dbr->freeResult( $res );
 127                 return $offset;
 128         }
 129
 130         /* private */ function makeSql() {
 131                 $offsetQuery = '';
 132
 133                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 134                 list( $index, $userCond ) = $this->getUserCond();
 135
 136                 if ( $this->offset )
 137                         $offsetQuery = "AND rev_timestamp <= '{$this->offset}'";
 138
 139                 $nscond = $this->getNamespaceCond();
 140                 $use_index = $this->dbr->useIndexClause( $index );
 141                 $sql = "SELECT
 142                         page_namespace,page_title,page_is_new,page_latest,
 143                         rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_minor_edit,rev_user,rev_user_text,
 144                         rev_deleted
 145                         FROM $page,$revision $use_index
 146                         WHERE page_id=rev_page AND $userCond $nscond $offsetQuery
 147                         ORDER BY rev_timestamp DESC";
 148                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 149                 return $sql;
 150         }
 151
 152         function find() {
 153                 $contribs = array();
 154                 $res = $this->dbr->query( $this->makeSql(), __METHOD__ );
 155                 while ( $c = $this->dbr->fetchObject( $res ) )
 156                         $contribs[] = $c;
 157                 $this->dbr->freeResult( $res );
 158                 return $contribs;
 159         }
 160 };
 161
 162 /**
 163  * Special page "user contributions".
 164  * Shows a list of the contributions of a user.
 165  *
 166  * @return      none
 167  * @param       $par    String: (optional) user name of the user for which to show the contributions
 168  */
 169 function wfSpecialContributions( $par = null ) {
 170         global $wgUser, $wgOut, $wgLang, $wgRequest;
 171
 172         $target = isset( $par ) ? $par : $wgRequest->getVal( 'target' );
 173         if ( !strlen( $target ) ) {
 174                 $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
 175                 return;
 176         }
 177
 178         $nt = Title::newFromURL( $target );
 179         if ( !$nt ) {
 180                 $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
 181                 return;
 182         }
 183
 184         $options = array();
 185
 186         list( $options['limit'], $options['offset']) = wfCheckLimits();
 187         $options['offset'] = $wgRequest->getVal( 'offset' );
 188         /* Check that the offset is valid (e.g. integer or timestamp) */
 189         if ( !strlen( $options['offset'] ) )
 190                 $options['offset'] = '';
 191         else {
 192                 $dbr =& wfGetDB( DB_SLAVE );
 193                 if ( !$dbr->realTimestamps() ) {
 194                         if (!preg_match( '/^[0-9]+$/', $options['offset'] ) )
 195                                 $options['offset'] = '';
 196                 }
 197                 else if ( !preg_match( '/^[0-9\-\+: ]+$/', $options['offset'] ) )
 198                         $options['offset'] = '';
 199         }
 200
 201         $title = SpecialPage::getTitleFor( 'Contributions' );
 202         $options['target'] = $target;
 203
 204         $nt =& Title::makeTitle( NS_USER, $nt->getDBkey() );
 205         $finder = new ContribsFinder( ( $target == 'newbies' ) ? 'newbies' : $nt->getText() );
 206         $finder->setLimit( $options['limit'] );
 207         $finder->setOffset( $options['offset'] );
 208
 209         if ( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 210                 $options['namespace'] = intval( $ns );
 211                 $finder->setNamespace( $options['namespace'] );
 212         } else {
 213                 $options['namespace'] = '';
 214         }
 215
 216         if ( $wgUser->isAllowed( 'rollback' ) && $wgRequest->getBool( 'bot' ) ) {
 217                 $options['bot'] = '1';
 218         }
 219
 220         if ( $wgRequest->getText( 'go' ) == 'prev' ) {
 221                 $offset = $finder->getPreviousOffsetForPaging();
 222                 if ( $offset !== false ) {
 223                         $options['offset'] = $offset;
 224                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 225                         $wgOut->redirect( $prevurl );
 226                         return;
 227                 }
 228         }
 229
 230         if ( $wgRequest->getText( 'go' ) == 'first' && $target != 'newbies') {
 231                 $offset = $finder->getFirstOffsetForPaging();
 232                 if ( $offset !== false ) {
 233                         $options['offset'] = $offset;
 234                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 235                         $wgOut->redirect( $prevurl );
 236                         return;
 237                 }
 238         }
 239
 240         if ( $target == 'newbies' ) {
 241                 $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
 242         } else {
 243                 $wgOut->setSubtitle( wfMsgHtml( 'contribsub', contributionsSub( $nt ) ) );
 244         }
 245
 246         $id = User::idFromName( $nt->getText() );
 247         wfRunHooks( 'SpecialContributionsBeforeMainOutput', $id );
 248
 249         $wgOut->addHTML( contributionsForm( $options) );
 250
 251         $contribs = $finder->find();
 252
 253         if ( count( $contribs ) == 0) {
 254                 $wgOut->addWikiText( wfMsg( 'nocontribs' ) );
 255                 return;
 256         }
 257
 258         list( $early, $late ) = $finder->getEditLimits();
 259         $lastts = count( $contribs ) ? $contribs[count( $contribs ) - 1]->rev_timestamp : 0;
 260         $atstart = ( !count( $contribs ) || $late == $contribs[0]->rev_timestamp );
 261         $atend = ( !count( $contribs ) || $early == $lastts );
 262
 263         // These four are defaults
 264         $newestlink = wfMsgHtml( 'sp-contributions-newest' );
 265         $oldestlink = wfMsgHtml( 'sp-contributions-oldest' );
 266         $newerlink  = wfMsgHtml( 'sp-contributions-newer', $options['limit'] );
 267         $olderlink  = wfMsgHtml( 'sp-contributions-older', $options['limit'] );
 268
 269         if ( !$atstart ) {
 270                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => '' ), $options ) );
 271                 $newestlink = "<a href=\"$stuff\">$newestlink</a>";
 272                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'prev' ), $options ) );
 273                 $newerlink = "<a href=\"$stuff\">$newerlink</a>";
 274         }
 275
 276         if ( !$atend ) {
 277                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'first' ), $options ) );
 278                 $oldestlink = "<a href=\"$stuff\">$oldestlink</a>";
 279                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => $lastts ), $options ) );
 280                 $olderlink = "<a href=\"$stuff\">$olderlink</a>";
 281         }
 282
 283         if ( $target == 'newbies' ) {
 284                 $firstlast ="($newestlink)";
 285         } else {
 286                 $firstlast = "($newestlink | $oldestlink)";
 287         }
 288
 289         $urls = array();
 290         foreach ( array( 20, 50, 100, 250, 500 ) as $num ) {
 291                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'limit' => $num ), $options ) );
 292                 $urls[] = "<a href=\"$stuff\">".$wgLang->formatNum( $num )."</a>";
 293         }
 294         $bits = implode( $urls, ' | ' );
 295
 296         $prevnextbits = $firstlast .' '. wfMsgHtml( 'viewprevnext', $newerlink, $olderlink, $bits );
 297
 298         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 299
 300         $wgOut->addHTML( "<ul>\n" );
 301
 302         $sk = $wgUser->getSkin();
 303         foreach ( $contribs as $contrib )
 304                 $wgOut->addHTML( ucListEdit( $sk, $contrib ) );
 305
 306         $wgOut->addHTML( "</ul>\n" );
 307         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 308 }
 309
 310 /**
 311  * Generates the subheading with links
 312  * @param $nt @see Title object for the target
 313  */
 314 function contributionsSub( $nt ) {
 315         global $wgSysopUserBans, $wgLang, $wgUser;
 316
 317         $sk = $wgUser->getSkin();
 318         $id = User::idFromName( $nt->getText() );
 319
 320         if ( 0 == $id ) {
 321                 $ul = $nt->getText();
 322         } else {
 323                 $ul = $sk->makeLinkObj( $nt, htmlspecialchars( $nt->getText() ) );
 324         }
 325         $talk = $nt->getTalkPage();
 326         if( $talk ) {
 327                 # Talk page link
 328                 $tools[] = $sk->makeLinkObj( $talk, $wgLang->getNsText( NS_TALK ) );
 329                 if( ( $id != 0 && $wgSysopUserBans ) || ( $id == 0 && User::isIP( $nt->getText() ) ) ) {
 330                         # Block link
 331                         if( $wgUser->isAllowed( 'block' ) )
 332                                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ), wfMsgHtml( 'blocklink' ) );
 333                         # Block log link
 334                         $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), htmlspecialchars( LogPage::logName( 'block' ) ), 'type=block&page=' . $nt->getPrefixedUrl() );
 335                 }
 336                 # Other logs link
 337                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), wfMsgHtml( 'log' ), 'user=' . $nt->getPartialUrl() );
 338                 $ul .= ' (' . implode( ' | ', $tools ) . ')';
 339         }
 340         return $ul;
 341 }
 342
 343 /**
 344  * Generates the namespace selector form with hidden attributes.
 345  * @param $options Array: the options to be included.
 346  */
 347 function contributionsForm( $options ) {
 348         global $wgScript, $wgTitle;
 349
 350         $options['title'] = $wgTitle->getPrefixedText();
 351
 352         $f = "<form method='get' action=\"$wgScript\">\n";
 353         foreach ( $options as $name => $value ) {
 354                 if( $name === 'namespace') continue;
 355                 $f .= "\t" . wfElement( 'input', array(
 356                         'name' => $name,
 357                         'type' => 'hidden',
 358                         'value' => $value ) ) . "\n";
 359         }
 360
 361         $f .= '<p>' . wfMsgHtml( 'namespace' ) . ' ' .
 362         HTMLnamespaceselector( $options['namespace'], '' ) .
 363         wfElement( 'input', array(
 364                         'type' => 'submit',
 365                         'value' => wfMsg( 'allpagessubmit' ) )
 366         ) .
 367         "</p></form>\n";
 368
 369         return $f;
 370 }
 371
 372 /**
 373  * Generates each row in the contributions list.
 374  *
 375  * Contributions which are marked "top" are currently on top of the history.
 376  * For these contributions, a [rollback] link is shown for users with sysop
 377  * privileges. The rollback link restores the most recent version that was not
 378  * written by the target user.
 379  *
 380  * @todo This would probably look a lot nicer in a table.
 381  */
 382 function ucListEdit( $sk, $row ) {
 383         $fname = 'ucListEdit';
 384         wfProfileIn( $fname );
 385
 386         global $wgLang, $wgUser, $wgRequest;
 387         static $messages;
 388         if( !isset( $messages ) ) {
 389                 foreach( explode( ' ', 'uctop diff newarticle rollbacklink diff hist minoreditletter' ) as $msg ) {
 390                         $messages[$msg] = wfMsgExt( $msg, array( 'escape') );
 391                 }
 392         }
 393
 394         $rev = new Revision( $row );
 395
 396         $page = Title::makeTitle( $row->page_namespace, $row->page_title );
 397         $link = $sk->makeKnownLinkObj( $page );
 398         $difftext = $topmarktext = '';
 399         if( $row->rev_id == $row->page_latest ) {
 400                 $topmarktext .= '<strong>' . $messages['uctop'] . '</strong>';
 401                 if( !$row->page_is_new ) {
 402                         $difftext .= '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=0' ) . ')';
 403                 } else {
 404                         $difftext .= $messages['newarticle'];
 405                 }
 406
 407                 if( $wgUser->isAllowed( 'rollback' ) ) {
 408                         $topmarktext .= ' '.$sk->generateRollback( $rev );
 409                 }
 410
 411         }
 412         if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 413                 $difftext = '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=prev&oldid='.$row->rev_id ) . ')';
 414         } else {
 415                 $difftext = '(' . $messages['diff'] . ')';
 416         }
 417         $histlink='('.$sk->makeKnownLinkObj( $page, $messages['hist'], 'action=history' ) . ')';
 418
 419         $comment = $sk->revComment( $rev );
 420         $d = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 421
 422         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 423                 $d = '<span class="history-deleted">' . $d . '</span>';
 424         }
 425
 426         if( $row->rev_minor_edit ) {
 427                 $mflag = '<span class="minor">' . $messages['minoreditletter'] . '</span> ';
 428         } else {
 429                 $mflag = '';
 430         }
 431
 432         $ret = "{$d} {$histlink} {$difftext} {$mflag} {$link} {$comment} {$topmarktext}";
 433         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 434                 $ret .= ' ' . wfMsgHtml( 'deletedrev' );
 435         }
 436         $ret = "<li>$ret</li>\n";
 437         wfProfileOut( $fname );
 438         return $ret;
 439 }
 440
 441 ?>