includes/SpecialContributions.php

   1 <?php
   2 /**
   3  * @addtogroup SpecialPage
   4  */
   5
   6 class ContribsFinder {
   7         var $username, $offset, $limit, $namespace;
   8         var $dbr;
   9
  10         /**
  11          * Constructor
  12          * @param $username Username as a string
  13         */
  14         function ContribsFinder( $username ) {
  15                 $this->username = $username;
  16                 $this->namespace = false;
  17                 $this->dbr = wfGetDB( DB_SLAVE, 'contributions' );
  18         }
  19
  20         function setNamespace( $ns ) {
  21                 $this->namespace = $ns;
  22         }
  23
  24         function setLimit( $limit ) {
  25                 $this->limit = $limit;
  26         }
  27
  28         function setOffset( $offset ) {
  29                 $this->offset = $offset;
  30         }
  31
  32         /**
  33          * Get timestamp of either first or last contribution made by the user.
  34          * @todo Maybe it should be private ?
  35          * @param $dir string 'ASC' or 'DESC'.
  36          * @return Revision timestamp (rev_timestamp).
  37         */
  38         function getEditLimit( $dir ) {
  39                 list( $index, $usercond ) = $this->getUserCond();
  40                 $nscond = $this->getNamespaceCond();
  41                 $use_index = $this->dbr->useIndexClause( $index );
  42                 list( $revision, $page) = $this->dbr->tableNamesN( 'revision', 'page' );
  43                 $sql =  "SELECT rev_timestamp " .
  44                         " FROM $page,$revision $use_index " .
  45                         " WHERE rev_page=page_id AND $usercond $nscond" .
  46                         " ORDER BY rev_timestamp $dir LIMIT 1";
  47
  48                 $res = $this->dbr->query( $sql, __METHOD__ );
  49                 $row = $this->dbr->fetchObject( $res );
  50                 if ( $row ) {
  51                         return $row->rev_timestamp;
  52                 } else {
  53                         return false;
  54                 }
  55         }
  56
  57         /**
  58          * Get timestamps of first and last contributions made by the user.
  59          * @return Array containing first rev_timestamp and last rev_timestamp.
  60         */
  61         function getEditLimits() {
  62                 return array(
  63                         $this->getEditLimit( "ASC" ),
  64                         $this->getEditLimit( "DESC" )
  65                 );
  66         }
  67
  68         function getUserCond() {
  69                 $condition = '';
  70
  71                 if ( $this->username == 'newbies' ) {
  72                         $max = $this->dbr->selectField( 'user', 'max(user_id)', false, 'make_sql' );
  73                         $condition = '>' . (int)($max - $max / 100);
  74                 }
  75
  76                 if ( $condition == '' ) {
  77                         $condition = ' rev_user_text=' . $this->dbr->addQuotes( $this->username );
  78                         $index = 'usertext_timestamp';
  79                 } else {
  80                         $condition = ' rev_user '.$condition ;
  81                         $index = 'user_timestamp';
  82                 }
  83                 return array( $index, $condition );
  84         }
  85
  86         function getNamespaceCond() {
  87                 if ( $this->namespace !== false )
  88                         return ' AND page_namespace = ' . (int)$this->namespace;
  89                 return '';
  90         }
  91
  92         /**
  93          * @return Timestamp of first entry in previous page.
  94         */
  95         function getPreviousOffsetForPaging() {
  96                 list( $index, $usercond ) = $this->getUserCond();
  97                 $nscond = $this->getNamespaceCond();
  98
  99                 $use_index = $this->dbr->useIndexClause( $index );
 100                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 101
 102                 $sql =  "SELECT rev_timestamp FROM $page, $revision $use_index " .
 103                         "WHERE page_id = rev_page AND rev_timestamp > '" . $this->offset . "' AND " .
 104                         $usercond . $nscond;
 105                 $sql .= " ORDER BY rev_timestamp ASC";
 106                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 107                 $res = $this->dbr->query( $sql );
 108
 109                 $numRows = $this->dbr->numRows( $res );
 110                 if ( $numRows ) {
 111                         $this->dbr->dataSeek( $res, $numRows - 1 );
 112                         $row = $this->dbr->fetchObject( $res );
 113                         $offset = $row->rev_timestamp;
 114                 } else {
 115                         $offset = false;
 116                 }
 117                 $this->dbr->freeResult( $res );
 118                 return $offset;
 119         }
 120
 121         /**
 122          * @return Timestamp of first entry in next page.
 123         */
 124         function getFirstOffsetForPaging() {
 125                 list( $index, $usercond ) = $this->getUserCond();
 126                 $use_index = $this->dbr->useIndexClause( $index );
 127                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 128                 $nscond = $this->getNamespaceCond();
 129                 $sql =  "SELECT rev_timestamp FROM $page, $revision $use_index " .
 130                         "WHERE page_id = rev_page AND " .
 131                         $usercond . $nscond;
 132                 $sql .= " ORDER BY rev_timestamp ASC";
 133                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 134                 $res = $this->dbr->query( $sql );
 135
 136                 $numRows = $this->dbr->numRows( $res );
 137                 if ( $numRows ) {
 138                         $this->dbr->dataSeek( $res, $numRows - 1 );
 139                         $row = $this->dbr->fetchObject( $res );
 140                         $offset = $row->rev_timestamp;
 141                 } else {
 142                         $offset = false;
 143                 }
 144                 $this->dbr->freeResult( $res );
 145                 return $offset;
 146         }
 147
 148         /* private */ function makeSql() {
 149                 $offsetQuery = '';
 150
 151                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 152                 list( $index, $userCond ) = $this->getUserCond();
 153
 154                 if ( $this->offset )
 155                         $offsetQuery = "AND rev_timestamp < '{$this->offset}'";
 156
 157                 $nscond = $this->getNamespaceCond();
 158                 $use_index = $this->dbr->useIndexClause( $index );
 159                 $sql = 'SELECT ' .
 160                         'page_namespace,page_title,page_is_new,page_latest,'.
 161                         'rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_minor_edit,rev_user,rev_user_text,'.
 162                         'rev_deleted ' .
 163                         "FROM $page,$revision $use_index " .
 164                         "WHERE page_id=rev_page AND $userCond $nscond $offsetQuery " .
 165                         'ORDER BY rev_timestamp DESC';
 166                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 167                 return $sql;
 168         }
 169
 170         /**
 171          * This do the search for the user given when creating the object.
 172          * It should probably be the only public function in this class.
 173          * @return Array of contributions.
 174         */
 175         function find() {
 176                 $contribs = array();
 177                 $res = $this->dbr->query( $this->makeSql(), __METHOD__ );
 178                 while ( $c = $this->dbr->fetchObject( $res ) )
 179                         $contribs[] = $c;
 180                 $this->dbr->freeResult( $res );
 181                 return $contribs;
 182         }
 183 };
 184
 185 /**
 186  * Special page "user contributions".
 187  * Shows a list of the contributions of a user.
 188  *
 189  * @return      none
 190  * @param       $par    String: (optional) user name of the user for which to show the contributions
 191  */
 192 function wfSpecialContributions( $par = null ) {
 193         global $wgUser, $wgOut, $wgLang, $wgRequest;
 194
 195         $target = isset( $par ) ? $par : $wgRequest->getVal( 'target' );
 196         if ( !strlen( $target ) ) {
 197                 $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
 198                 return;
 199         }
 200
 201         $nt = Title::newFromURL( $target );
 202         if ( !$nt ) {
 203                 $wgOut->showErrorPage( 'notargettitle', 'notargettext' );
 204                 return;
 205         }
 206
 207         $options = array();
 208
 209         list( $options['limit'], $options['offset']) = wfCheckLimits();
 210         $options['offset'] = $wgRequest->getVal( 'offset' );
 211
 212         /* Offset must either be numeric, or a "standard" timestamp */
 213     $dbr = wfGetDB( DB_SLAVE );
 214     if ( !strlen( $options['offset'] )
 215         || ($dbr->realTimestamps()
 216             && !preg_match ( '/^\d\d\d\d\-\d\d\-\d\d \d\d:\d\d:\d\d(?:[+-]\d\d)?$/', $options['offset'] )
 217            )
 218         || (!$dbr->realTimestamps()
 219             && !preg_match( '/^[0-9]+$/', $options['offset'] )
 220            )
 221        )
 222        $options['offset'] = '';
 223
 224         $title = SpecialPage::getTitleFor( 'Contributions' );
 225         $options['target'] = $target;
 226
 227         $nt =& Title::makeTitle( NS_USER, $nt->getDBkey() );
 228         $finder = new ContribsFinder( ( $target == 'newbies' ) ? 'newbies' : $nt->getText() );
 229         $finder->setLimit( $options['limit'] );
 230         $finder->setOffset( $options['offset'] );
 231
 232         if ( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 233                 $options['namespace'] = intval( $ns );
 234                 $finder->setNamespace( $options['namespace'] );
 235         } else {
 236                 $options['namespace'] = '';
 237         }
 238
 239         if ( $wgUser->isAllowed( 'rollback' ) && $wgRequest->getBool( 'bot' ) ) {
 240                 $options['bot'] = '1';
 241         }
 242
 243         if ( $wgRequest->getText( 'go' ) == 'prev' ) {
 244                 $offset = $finder->getPreviousOffsetForPaging();
 245                 if ( $offset !== false ) {
 246                         $options['offset'] = $offset;
 247                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 248                         $wgOut->redirect( $prevurl );
 249                         return;
 250                 }
 251         }
 252
 253         if ( $wgRequest->getText( 'go' ) == 'first' && $target != 'newbies') {
 254                 $offset = $finder->getFirstOffsetForPaging();
 255                 if ( $offset !== false ) {
 256                         $options['offset'] = $offset;
 257                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 258                         $wgOut->redirect( $prevurl );
 259                         return;
 260                 }
 261         }
 262
 263         if ( $target == 'newbies' ) {
 264                 $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
 265         } else {
 266                 $wgOut->setSubtitle( wfMsgHtml( 'contribsub', contributionsSub( $nt ) ) );
 267         }
 268
 269         $id = User::idFromName( $nt->getText() );
 270         wfRunHooks( 'SpecialContributionsBeforeMainOutput', $id );
 271
 272         $wgOut->addHTML( contributionsForm( $options) );
 273
 274         $contribs = $finder->find();
 275
 276         if ( count( $contribs ) == 0) {
 277                 $wgOut->addWikiText( wfMsg( 'nocontribs' ) );
 278                 return;
 279         }
 280
 281         list( $early, $late ) = $finder->getEditLimits();
 282         $lastts = count( $contribs ) ? $contribs[count( $contribs ) - 1]->rev_timestamp : 0;
 283         $atstart = ( !count( $contribs ) || $late == $contribs[0]->rev_timestamp );
 284         $atend = ( !count( $contribs ) || $early == $lastts );
 285
 286         // These four are defaults
 287         $newestlink = wfMsgHtml( 'sp-contributions-newest' );
 288         $oldestlink = wfMsgHtml( 'sp-contributions-oldest' );
 289         $newerlink  = wfMsgHtml( 'sp-contributions-newer', $options['limit'] );
 290         $olderlink  = wfMsgHtml( 'sp-contributions-older', $options['limit'] );
 291
 292         if ( !$atstart ) {
 293                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => '' ), $options ) );
 294                 $newestlink = "<a href=\"$stuff\">$newestlink</a>";
 295                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'prev' ), $options ) );
 296                 $newerlink = "<a href=\"$stuff\">$newerlink</a>";
 297         }
 298
 299         if ( !$atend ) {
 300                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'first' ), $options ) );
 301                 $oldestlink = "<a href=\"$stuff\">$oldestlink</a>";
 302                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => $lastts ), $options ) );
 303                 $olderlink = "<a href=\"$stuff\">$olderlink</a>";
 304         }
 305
 306         if ( $target == 'newbies' ) {
 307                 $firstlast ="($newestlink)";
 308         } else {
 309                 $firstlast = "($newestlink | $oldestlink)";
 310         }
 311
 312         $urls = array();
 313         foreach ( array( 20, 50, 100, 250, 500 ) as $num ) {
 314                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'limit' => $num ), $options ) );
 315                 $urls[] = "<a href=\"$stuff\">".$wgLang->formatNum( $num )."</a>";
 316         }
 317         $bits = implode( $urls, ' | ' );
 318
 319         $prevnextbits = $firstlast .' '. wfMsgHtml( 'viewprevnext', $newerlink, $olderlink, $bits );
 320
 321         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 322
 323         $wgOut->addHTML( "<ul>\n" );
 324
 325         $sk = $wgUser->getSkin();
 326         foreach ( $contribs as $contrib )
 327                 $wgOut->addHTML( ucListEdit( $sk, $contrib ) );
 328
 329         $wgOut->addHTML( "</ul>\n" );
 330         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 331 }
 332
 333 /**
 334  * Generates the subheading with links
 335  * @param $nt @see Title object for the target
 336  */
 337 function contributionsSub( $nt ) {
 338         global $wgSysopUserBans, $wgLang, $wgUser;
 339
 340         $sk = $wgUser->getSkin();
 341         $id = User::idFromName( $nt->getText() );
 342
 343         if ( 0 == $id ) {
 344                 $ul = $nt->getText();
 345         } else {
 346                 $ul = $sk->makeLinkObj( $nt, htmlspecialchars( $nt->getText() ) );
 347         }
 348         $talk = $nt->getTalkPage();
 349         if( $talk ) {
 350                 # Talk page link
 351                 $tools[] = $sk->makeLinkObj( $talk, $wgLang->getNsText( NS_TALK ) );
 352                 if( ( $id != 0 && $wgSysopUserBans ) || ( $id == 0 && User::isIP( $nt->getText() ) ) ) {
 353                         # Block link
 354                         if( $wgUser->isAllowed( 'block' ) )
 355                                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ), wfMsgHtml( 'blocklink' ) );
 356                         # Block log link
 357                         $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), wfMsgHtml( 'sp-contributions-blocklog' ), 'type=block&page=' . $nt->getPrefixedUrl() );
 358                 }
 359                 # Other logs link
 360                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), wfMsgHtml( 'log' ), 'user=' . $nt->getPartialUrl() );
 361                 $ul .= ' (' . implode( ' | ', $tools ) . ')';
 362         }
 363         return $ul;
 364 }
 365
 366 /**
 367  * Generates the namespace selector form with hidden attributes.
 368  * @param $options Array: the options to be included.
 369  */
 370 function contributionsForm( $options ) {
 371         global $wgScript, $wgTitle;
 372
 373         $options['title'] = $wgTitle->getPrefixedText();
 374
 375         $f = "<form method='get' action=\"$wgScript\">\n";
 376         foreach ( $options as $name => $value ) {
 377                 if( $name === 'namespace') continue;
 378                 $f .= "\t" . wfElement( 'input', array(
 379                         'name' => $name,
 380                         'type' => 'hidden',
 381                         'value' => $value ) ) . "\n";
 382         }
 383
 384         $f .= '<p>' . wfMsgHtml( 'namespace' ) . ' ' .
 385         HTMLnamespaceselector( $options['namespace'], '' ) .
 386         wfElement( 'input', array(
 387                         'type' => 'submit',
 388                         'value' => wfMsg( 'allpagessubmit' ) )
 389         ) .
 390         "</p></form>\n";
 391
 392         return $f;
 393 }
 394
 395 /**
 396  * Generates each row in the contributions list.
 397  *
 398  * Contributions which are marked "top" are currently on top of the history.
 399  * For these contributions, a [rollback] link is shown for users with sysop
 400  * privileges. The rollback link restores the most recent version that was not
 401  * written by the target user.
 402  *
 403  * @todo This would probably look a lot nicer in a table.
 404  */
 405 function ucListEdit( $sk, $row ) {
 406         $fname = 'ucListEdit';
 407         wfProfileIn( $fname );
 408
 409         global $wgLang, $wgUser, $wgRequest;
 410         static $messages;
 411         if( !isset( $messages ) ) {
 412                 foreach( explode( ' ', 'uctop diff newarticle rollbacklink diff hist minoreditletter' ) as $msg ) {
 413                         $messages[$msg] = wfMsgExt( $msg, array( 'escape') );
 414                 }
 415         }
 416
 417         $rev = new Revision( $row );
 418
 419         $page = Title::makeTitle( $row->page_namespace, $row->page_title );
 420         $link = $sk->makeKnownLinkObj( $page );
 421         $difftext = $topmarktext = '';
 422         if( $row->rev_id == $row->page_latest ) {
 423                 $topmarktext .= '<strong>' . $messages['uctop'] . '</strong>';
 424                 if( !$row->page_is_new ) {
 425                         $difftext .= '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=0' ) . ')';
 426                 } else {
 427                         $difftext .= $messages['newarticle'];
 428                 }
 429
 430                 if( $wgUser->isAllowed( 'rollback' ) ) {
 431                         $topmarktext .= ' '.$sk->generateRollback( $rev );
 432                 }
 433
 434         }
 435         if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 436                 $difftext = '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=prev&oldid='.$row->rev_id ) . ')';
 437         } else {
 438                 $difftext = '(' . $messages['diff'] . ')';
 439         }
 440         $histlink='('.$sk->makeKnownLinkObj( $page, $messages['hist'], 'action=history' ) . ')';
 441
 442         $comment = $sk->revComment( $rev );
 443         $d = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 444
 445         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 446                 $d = '<span class="history-deleted">' . $d . '</span>';
 447         }
 448
 449         if( $row->rev_minor_edit ) {
 450                 $mflag = '<span class="minor">' . $messages['minoreditletter'] . '</span> ';
 451         } else {
 452                 $mflag = '';
 453         }
 454
 455         $ret = "{$d} {$histlink} {$difftext} {$mflag} {$link} {$comment} {$topmarktext}";
 456         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 457                 $ret .= ' ' . wfMsgHtml( 'deletedrev' );
 458         }
 459         $ret = "<li>$ret</li>\n";
 460         wfProfileOut( $fname );
 461         return $ret;
 462 }
 463
 464 ?>