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         /* Offset must be an integral, unless the db is using timestamps */
 189         $dbr =& wfGetDB( DB_SLAVE );
 190         if ( !strlen( $options['offset'] ) ||
 191                 ( !$dbr->realTimestamps() && !preg_match( '/^[0-9]+$/', $options['offset'] ) ) )
 192         $options['offset'] = '';
 193
 194         $title = SpecialPage::getTitleFor( 'Contributions' );
 195         $options['target'] = $target;
 196
 197         $nt =& Title::makeTitle( NS_USER, $nt->getDBkey() );
 198         $finder = new ContribsFinder( ( $target == 'newbies' ) ? 'newbies' : $nt->getText() );
 199         $finder->setLimit( $options['limit'] );
 200         $finder->setOffset( $options['offset'] );
 201
 202         if ( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 203                 $options['namespace'] = intval( $ns );
 204                 $finder->setNamespace( $options['namespace'] );
 205         } else {
 206                 $options['namespace'] = '';
 207         }
 208
 209         if ( $wgUser->isAllowed( 'rollback' ) && $wgRequest->getBool( 'bot' ) ) {
 210                 $options['bot'] = '1';
 211         }
 212
 213         if ( $wgRequest->getText( 'go' ) == 'prev' ) {
 214                 $offset = $finder->getPreviousOffsetForPaging();
 215                 if ( $offset !== false ) {
 216                         $options['offset'] = $offset;
 217                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 218                         $wgOut->redirect( $prevurl );
 219                         return;
 220                 }
 221         }
 222
 223         if ( $wgRequest->getText( 'go' ) == 'first' && $target != 'newbies') {
 224                 $offset = $finder->getFirstOffsetForPaging();
 225                 if ( $offset !== false ) {
 226                         $options['offset'] = $offset;
 227                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 228                         $wgOut->redirect( $prevurl );
 229                         return;
 230                 }
 231         }
 232
 233         if ( $target == 'newbies' ) {
 234                 $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
 235         } else {
 236                 $wgOut->setSubtitle( wfMsgHtml( 'contribsub', contributionsSub( $nt ) ) );
 237         }
 238
 239         $id = User::idFromName( $nt->getText() );
 240         wfRunHooks( 'SpecialContributionsBeforeMainOutput', $id );
 241
 242         $wgOut->addHTML( contributionsForm( $options) );
 243
 244         $contribs = $finder->find();
 245
 246         if ( count( $contribs ) == 0) {
 247                 $wgOut->addWikiText( wfMsg( 'nocontribs' ) );
 248                 return;
 249         }
 250
 251         list( $early, $late ) = $finder->getEditLimits();
 252         $lastts = count( $contribs ) ? $contribs[count( $contribs ) - 1]->rev_timestamp : 0;
 253         $atstart = ( !count( $contribs ) || $late == $contribs[0]->rev_timestamp );
 254         $atend = ( !count( $contribs ) || $early == $lastts );
 255
 256         // These four are defaults
 257         $newestlink = wfMsgHtml( 'sp-contributions-newest' );
 258         $oldestlink = wfMsgHtml( 'sp-contributions-oldest' );
 259         $newerlink  = wfMsgHtml( 'sp-contributions-newer', $options['limit'] );
 260         $olderlink  = wfMsgHtml( 'sp-contributions-older', $options['limit'] );
 261
 262         if ( !$atstart ) {
 263                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => '' ), $options ) );
 264                 $newestlink = "<a href=\"$stuff\">$newestlink</a>";
 265                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'prev' ), $options ) );
 266                 $newerlink = "<a href=\"$stuff\">$newerlink</a>";
 267         }
 268
 269         if ( !$atend ) {
 270                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'first' ), $options ) );
 271                 $oldestlink = "<a href=\"$stuff\">$oldestlink</a>";
 272                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => $lastts ), $options ) );
 273                 $olderlink = "<a href=\"$stuff\">$olderlink</a>";
 274         }
 275
 276         if ( $target == 'newbies' ) {
 277                 $firstlast ="($newestlink)";
 278         } else {
 279                 $firstlast = "($newestlink | $oldestlink)";
 280         }
 281
 282         $urls = array();
 283         foreach ( array( 20, 50, 100, 250, 500 ) as $num ) {
 284                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'limit' => $num ), $options ) );
 285                 $urls[] = "<a href=\"$stuff\">".$wgLang->formatNum( $num )."</a>";
 286         }
 287         $bits = implode( $urls, ' | ' );
 288
 289         $prevnextbits = $firstlast .' '. wfMsgHtml( 'viewprevnext', $newerlink, $olderlink, $bits );
 290
 291         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 292
 293         $wgOut->addHTML( "<ul>\n" );
 294
 295         $sk = $wgUser->getSkin();
 296         foreach ( $contribs as $contrib )
 297                 $wgOut->addHTML( ucListEdit( $sk, $contrib ) );
 298
 299         $wgOut->addHTML( "</ul>\n" );
 300         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 301 }
 302
 303 /**
 304  * Generates the subheading with links
 305  * @param $nt @see Title object for the target
 306  */
 307 function contributionsSub( $nt ) {
 308         global $wgSysopUserBans, $wgLang, $wgUser;
 309
 310         $sk = $wgUser->getSkin();
 311         $id = User::idFromName( $nt->getText() );
 312
 313         if ( 0 == $id ) {
 314                 $ul = $nt->getText();
 315         } else {
 316                 $ul = $sk->makeLinkObj( $nt, htmlspecialchars( $nt->getText() ) );
 317         }
 318         $talk = $nt->getTalkPage();
 319         if( $talk ) {
 320                 # Talk page link
 321                 $tools[] = $sk->makeLinkObj( $talk, $wgLang->getNsText( NS_TALK ) );
 322                 if( ( $id != 0 && $wgSysopUserBans ) || ( $id == 0 && User::isIP( $nt->getText() ) ) ) {
 323                         # Block link
 324                         if( $wgUser->isAllowed( 'block' ) )
 325                                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ), wfMsgHtml( 'blocklink' ) );
 326                         # Block log link
 327                         $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), htmlspecialchars( LogPage::logName( 'block' ) ), 'type=block&page=' . $nt->getPrefixedUrl() );
 328                 }
 329                 # Other logs link
 330                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), wfMsgHtml( 'log' ), 'user=' . $nt->getPartialUrl() );
 331                 $ul .= ' (' . implode( ' | ', $tools ) . ')';
 332         }
 333         return $ul;
 334 }
 335
 336 /**
 337  * Generates the namespace selector form with hidden attributes.
 338  * @param $options Array: the options to be included.
 339  */
 340 function contributionsForm( $options ) {
 341         global $wgScript, $wgTitle;
 342
 343         $options['title'] = $wgTitle->getPrefixedText();
 344
 345         $f = "<form method='get' action=\"$wgScript\">\n";
 346         foreach ( $options as $name => $value ) {
 347                 if( $name === 'namespace') continue;
 348                 $f .= "\t" . wfElement( 'input', array(
 349                         'name' => $name,
 350                         'type' => 'hidden',
 351                         'value' => $value ) ) . "\n";
 352         }
 353
 354         $f .= '<p>' . wfMsgHtml( 'namespace' ) . ' ' .
 355         HTMLnamespaceselector( $options['namespace'], '' ) .
 356         wfElement( 'input', array(
 357                         'type' => 'submit',
 358                         'value' => wfMsg( 'allpagessubmit' ) )
 359         ) .
 360         "</p></form>\n";
 361
 362         return $f;
 363 }
 364
 365 /**
 366  * Generates each row in the contributions list.
 367  *
 368  * Contributions which are marked "top" are currently on top of the history.
 369  * For these contributions, a [rollback] link is shown for users with sysop
 370  * privileges. The rollback link restores the most recent version that was not
 371  * written by the target user.
 372  *
 373  * @todo This would probably look a lot nicer in a table.
 374  */
 375 function ucListEdit( $sk, $row ) {
 376         $fname = 'ucListEdit';
 377         wfProfileIn( $fname );
 378
 379         global $wgLang, $wgUser, $wgRequest;
 380         static $messages;
 381         if( !isset( $messages ) ) {
 382                 foreach( explode( ' ', 'uctop diff newarticle rollbacklink diff hist minoreditletter' ) as $msg ) {
 383                         $messages[$msg] = wfMsgExt( $msg, array( 'escape') );
 384                 }
 385         }
 386
 387         $rev = new Revision( $row );
 388
 389         $page = Title::makeTitle( $row->page_namespace, $row->page_title );
 390         $link = $sk->makeKnownLinkObj( $page );
 391         $difftext = $topmarktext = '';
 392         if( $row->rev_id == $row->page_latest ) {
 393                 $topmarktext .= '<strong>' . $messages['uctop'] . '</strong>';
 394                 if( !$row->page_is_new ) {
 395                         $difftext .= '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=0' ) . ')';
 396                 } else {
 397                         $difftext .= $messages['newarticle'];
 398                 }
 399
 400                 if( $wgUser->isAllowed( 'rollback' ) ) {
 401                         $topmarktext .= ' '.$sk->generateRollback( $rev );
 402                 }
 403
 404         }
 405         if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 406                 $difftext = '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=prev&oldid='.$row->rev_id ) . ')';
 407         } else {
 408                 $difftext = '(' . $messages['diff'] . ')';
 409         }
 410         $histlink='('.$sk->makeKnownLinkObj( $page, $messages['hist'], 'action=history' ) . ')';
 411
 412         $comment = $sk->revComment( $rev );
 413         $d = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 414
 415         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 416                 $d = '<span class="history-deleted">' . $d . '</span>';
 417         }
 418
 419         if( $row->rev_minor_edit ) {
 420                 $mflag = '<span class="minor">' . $messages['minoreditletter'] . '</span> ';
 421         } else {
 422                 $mflag = '';
 423         }
 424
 425         $ret = "{$d} {$histlink} {$difftext} {$mflag} {$link} {$comment} {$topmarktext}";
 426         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 427                 $ret .= ' ' . wfMsgHtml( 'deletedrev' );
 428         }
 429         $ret = "<li>$ret</li>\n";
 430         wfProfileOut( $fname );
 431         return $ret;
 432 }
 433
 434 ?>