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