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                         $condition = 'rev_user >' . (int)($max - $max / 100);
  74                 } else if ( preg_match("/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\/(24|16)/", $this->username) ) {
  75                         $abcd = explode( ".", $this->username );
  76                         if( substr( $this->username, -2 ) == 24 ) $ipmask = $abcd[0] . '.' . $abcd[1] . '.' . $abcd[2] . '.%';
  77                         else $ipmask=$abcd[0] . '.' . $abcd[1] . '.%';
  78                         $condition = 'rev_user_text LIKE ' . $this->dbr->addQuotes($ipmask);
  79                 }
  80
  81                 if ( $condition == '' ) {
  82                         $condition = ' rev_user_text=' . $this->dbr->addQuotes( $this->username );
  83                         $index = 'usertext_timestamp';
  84                 } else {
  85                         #$condition = ' rev_user '.$condition ;
  86                         $index = 'user_timestamp';
  87                 }
  88                 return array( $index, $condition );
  89         }
  90
  91         function getNamespaceCond() {
  92                 if ( $this->namespace !== false )
  93                         return ' AND page_namespace = ' . (int)$this->namespace;
  94                 return '';
  95         }
  96
  97         /**
  98          * @return Timestamp of first entry in previous page.
  99         */
 100         function getPreviousOffsetForPaging() {
 101                 list( $index, $usercond ) = $this->getUserCond();
 102                 $nscond = $this->getNamespaceCond();
 103
 104                 $use_index = $this->dbr->useIndexClause( $index );
 105                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 106
 107                 $sql =  "SELECT rev_timestamp FROM $page, $revision $use_index " .
 108                         "WHERE page_id = rev_page AND rev_timestamp > '" . $this->offset . "' AND " .
 109                         $usercond . $nscond;
 110                 $sql .= " ORDER BY rev_timestamp ASC";
 111                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 112                 $res = $this->dbr->query( $sql );
 113
 114                 $numRows = $this->dbr->numRows( $res );
 115                 if ( $numRows ) {
 116                         $this->dbr->dataSeek( $res, $numRows - 1 );
 117                         $row = $this->dbr->fetchObject( $res );
 118                         $offset = $row->rev_timestamp;
 119                 } else {
 120                         $offset = false;
 121                 }
 122                 $this->dbr->freeResult( $res );
 123                 return $offset;
 124         }
 125
 126         /**
 127          * @return Timestamp of first entry in next page.
 128         */
 129         function getFirstOffsetForPaging() {
 130                 list( $index, $usercond ) = $this->getUserCond();
 131                 $use_index = $this->dbr->useIndexClause( $index );
 132                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 133                 $nscond = $this->getNamespaceCond();
 134                 $sql =  "SELECT rev_timestamp FROM $page, $revision $use_index " .
 135                         "WHERE page_id = rev_page AND " .
 136                         $usercond . $nscond;
 137                 $sql .= " ORDER BY rev_timestamp ASC";
 138                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 139                 $res = $this->dbr->query( $sql );
 140
 141                 $numRows = $this->dbr->numRows( $res );
 142                 if ( $numRows ) {
 143                         $this->dbr->dataSeek( $res, $numRows - 1 );
 144                         $row = $this->dbr->fetchObject( $res );
 145                         $offset = $row->rev_timestamp;
 146                 } else {
 147                         $offset = false;
 148                 }
 149                 $this->dbr->freeResult( $res );
 150                 return $offset;
 151         }
 152
 153         /* private */ function makeSql() {
 154                 $offsetQuery = '';
 155
 156                 list( $page, $revision ) = $this->dbr->tableNamesN( 'page', 'revision' );
 157                 list( $index, $userCond ) = $this->getUserCond();
 158
 159                 if ( $this->offset )
 160                         $offsetQuery = "AND rev_timestamp < '{$this->offset}'";
 161
 162                 $nscond = $this->getNamespaceCond();
 163                 $use_index = $this->dbr->useIndexClause( $index );
 164                 $sql = 'SELECT ' .
 165                         'page_namespace,page_title,page_is_new,page_latest,'.
 166                         'rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_minor_edit,rev_user,rev_user_text,'.
 167                         'rev_deleted ' .
 168                         "FROM $page,$revision $use_index " .
 169                         "WHERE page_id=rev_page AND $userCond $nscond $offsetQuery " .
 170                         'ORDER BY rev_timestamp DESC';
 171                 $sql = $this->dbr->limitResult( $sql, $this->limit, 0 );
 172                 return $sql;
 173         }
 174
 175         /**
 176          * This do the search for the user given when creating the object.
 177          * It should probably be the only public function in this class.
 178          * @return Array of contributions.
 179         */
 180         function find() {
 181                 $contribs = array();
 182                 $res = $this->dbr->query( $this->makeSql(), __METHOD__ );
 183                 while ( $c = $this->dbr->fetchObject( $res ) )
 184                         $contribs[] = $c;
 185                 $this->dbr->freeResult( $res );
 186                 return $contribs;
 187         }
 188 };
 189
 190 /**
 191  * Special page "user contributions".
 192  * Shows a list of the contributions of a user.
 193  *
 194  * @return      none
 195  * @param       $par    String: (optional) user name of the user for which to show the contributions
 196  */
 197 function wfSpecialContributions( $par = null ) {
 198         global $wgUser, $wgOut, $wgLang, $wgRequest;
 199
 200         $target = isset( $par ) ? $par : $wgRequest->getVal( 'target' );
 201         if ( !strlen( $target ) ) {
 202                 $wgOut->addHTML( contributionsForm( '' ) );
 203                 return;
 204         }
 205
 206         $nt = Title::newFromURL( $target );
 207         if ( !$nt ) {
 208                 $wgOut->addHTML( contributionsForm( '' ) );
 209                 return;
 210         }
 211
 212         $options = array();
 213
 214         list( $options['limit'], $options['offset']) = wfCheckLimits();
 215         $options['offset'] = $wgRequest->getVal( 'offset' );
 216
 217         /* Offset must either be numeric, or a "standard" timestamp */
 218     $dbr = wfGetDB( DB_SLAVE );
 219     if ( !strlen( $options['offset'] )
 220         || ($dbr->realTimestamps()
 221             && !preg_match ( '/^\d\d\d\d\-\d\d\-\d\d \d\d:\d\d:\d\d(?:[+-]\d\d)?$/', $options['offset'] )
 222            )
 223         || (!$dbr->realTimestamps()
 224             && !preg_match( '/^[0-9]+$/', $options['offset'] )
 225            )
 226        )
 227        $options['offset'] = '';
 228
 229         $title = SpecialPage::getTitleFor( 'Contributions' );
 230         $options['target'] = $target;
 231
 232         $nt =& Title::makeTitle( NS_USER, $nt->getDBkey() );
 233         $finder = new ContribsFinder( ( $target == 'newbies' ) ? 'newbies' : $nt->getText() );
 234         $finder->setLimit( $options['limit'] );
 235         $finder->setOffset( $options['offset'] );
 236
 237         if ( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 238                 $options['namespace'] = intval( $ns );
 239                 $finder->setNamespace( $options['namespace'] );
 240         } else {
 241                 $options['namespace'] = '';
 242         }
 243
 244         if ( $wgUser->isAllowed( 'rollback' ) && $wgRequest->getBool( 'bot' ) ) {
 245                 $options['bot'] = '1';
 246         }
 247
 248         if ( $wgRequest->getText( 'go' ) == 'prev' ) {
 249                 $offset = $finder->getPreviousOffsetForPaging();
 250                 if ( $offset !== false ) {
 251                         $options['offset'] = $offset;
 252                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 253                         $wgOut->redirect( $prevurl );
 254                         return;
 255                 }
 256         }
 257
 258         if ( $wgRequest->getText( 'go' ) == 'first' && $target != 'newbies') {
 259                 $offset = $finder->getFirstOffsetForPaging();
 260                 if ( $offset !== false ) {
 261                         $options['offset'] = $offset;
 262                         $prevurl = $title->getLocalURL( wfArrayToCGI( $options ) );
 263                         $wgOut->redirect( $prevurl );
 264                         return;
 265                 }
 266         }
 267
 268         if ( $target == 'newbies' ) {
 269                 $wgOut->setSubtitle( wfMsgHtml( 'sp-contributions-newbies-sub') );
 270         } else if ( preg_match( "/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\/(24|16)/", $target ) ) {
 271             $wgOut->setSubtitle( wfMsgHtml( 'contribsub', $target ) );
 272         } else {
 273                 $wgOut->setSubtitle( wfMsgHtml( 'contribsub', contributionsSub( $nt ) ) );
 274         }
 275
 276         $id = User::idFromName( $nt->getText() );
 277         wfRunHooks( 'SpecialContributionsBeforeMainOutput', $id );
 278
 279         $wgOut->addHTML( contributionsForm( $options) );
 280
 281         $contribs = $finder->find();
 282
 283         if ( count( $contribs ) == 0) {
 284                 $wgOut->addWikiText( wfMsg( 'nocontribs' ) );
 285                 return;
 286         }
 287
 288         list( $early, $late ) = $finder->getEditLimits();
 289         $lastts = count( $contribs ) ? $contribs[count( $contribs ) - 1]->rev_timestamp : 0;
 290         $atstart = ( !count( $contribs ) || $late == $contribs[0]->rev_timestamp );
 291         $atend = ( !count( $contribs ) || $early == $lastts );
 292
 293         // These four are defaults
 294         $newestlink = wfMsgHtml( 'sp-contributions-newest' );
 295         $oldestlink = wfMsgHtml( 'sp-contributions-oldest' );
 296         $newerlink  = wfMsgHtml( 'sp-contributions-newer', $options['limit'] );
 297         $olderlink  = wfMsgHtml( 'sp-contributions-older', $options['limit'] );
 298
 299         if ( !$atstart ) {
 300                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => '' ), $options ) );
 301                 $newestlink = "<a href=\"$stuff\">$newestlink</a>";
 302                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'prev' ), $options ) );
 303                 $newerlink = "<a href=\"$stuff\">$newerlink</a>";
 304         }
 305
 306         if ( !$atend ) {
 307                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'go' => 'first' ), $options ) );
 308                 $oldestlink = "<a href=\"$stuff\">$oldestlink</a>";
 309                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'offset' => $lastts ), $options ) );
 310                 $olderlink = "<a href=\"$stuff\">$olderlink</a>";
 311         }
 312
 313         if ( $target == 'newbies' ) {
 314                 $firstlast ="($newestlink)";
 315         } else {
 316                 $firstlast = "($newestlink | $oldestlink)";
 317         }
 318
 319         $urls = array();
 320         foreach ( array( 20, 50, 100, 250, 500 ) as $num ) {
 321                 $stuff = $title->escapeLocalURL( wfArrayToCGI( array( 'limit' => $num ), $options ) );
 322                 $urls[] = "<a href=\"$stuff\">".$wgLang->formatNum( $num )."</a>";
 323         }
 324         $bits = implode( $urls, ' | ' );
 325
 326         $prevnextbits = $firstlast .' '. wfMsgHtml( 'viewprevnext', $newerlink, $olderlink, $bits );
 327
 328         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 329
 330         $wgOut->addHTML( "<ul>\n" );
 331
 332         $sk = $wgUser->getSkin();
 333         foreach ( $contribs as $contrib )
 334                 $wgOut->addHTML( ucListEdit( $sk, $contrib ) );
 335
 336         $wgOut->addHTML( "</ul>\n" );
 337         $wgOut->addHTML( "<p>{$prevnextbits}</p>\n" );
 338 }
 339
 340 /**
 341  * Generates the subheading with links
 342  * @param $nt @see Title object for the target
 343  */
 344 function contributionsSub( $nt ) {
 345         global $wgSysopUserBans, $wgLang, $wgUser;
 346
 347         $sk = $wgUser->getSkin();
 348         $id = User::idFromName( $nt->getText() );
 349
 350         if ( 0 == $id ) {
 351                 $ul = $nt->getText();
 352         } else {
 353                 $ul = $sk->makeLinkObj( $nt, htmlspecialchars( $nt->getText() ) );
 354         }
 355         $talk = $nt->getTalkPage();
 356         if( $talk ) {
 357                 # Talk page link
 358                 $tools[] = $sk->makeLinkObj( $talk, $wgLang->getNsText( NS_TALK ) );
 359                 if( ( $id != 0 && $wgSysopUserBans ) || ( $id == 0 && User::isIP( $nt->getText() ) ) ) {
 360                         # Block link
 361                         if( $wgUser->isAllowed( 'block' ) )
 362                                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ), wfMsgHtml( 'blocklink' ) );
 363                         # Block log link
 364                         $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), wfMsgHtml( 'sp-contributions-blocklog' ), 'type=block&page=' . $nt->getPrefixedUrl() );
 365                 }
 366                 # Other logs link
 367                 $tools[] = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'Log' ), wfMsgHtml( 'log' ), 'user=' . $nt->getPartialUrl() );
 368                 $ul .= ' (' . implode( ' | ', $tools ) . ')';
 369         }
 370         return $ul;
 371 }
 372
 373 /**
 374  * Generates the namespace selector form with hidden attributes.
 375  * @param $options Array: the options to be included.
 376  */
 377 function contributionsForm( $options ) {
 378         global $wgScript, $wgTitle;
 379
 380         $options['title'] = $wgTitle->getPrefixedText();
 381
 382         $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );
 383
 384         foreach ( $options as $name => $value ) {
 385                 if( $name === 'namespace') continue;
 386                 $f .= "\t" . Xml::hidden( $name, $value ) . "\n";
 387         }
 388
 389         $f .= '<fieldset>' .
 390                 Xml::element( 'legend', array(), wfMsg( 'sp-contributions-search' ) ) .
 391                 Xml::inputLabel( wfMsg( 'sp-contributions-username' ), 'target', 'target', 20 , $options['target']) . ' ' .
 392                 wfMsgHtml( 'namespace' ) . ' ' .
 393                 Xml::namespaceSelector( $options['namespace'], '' ) .
 394                 Xml::submitButton( wfMsg( 'sp-contributions-submit' ) ) .
 395                 "</fieldset></form>\n";
 396         return $f;
 397 }
 398
 399 /**
 400  * Generates each row in the contributions list.
 401  *
 402  * Contributions which are marked "top" are currently on top of the history.
 403  * For these contributions, a [rollback] link is shown for users with sysop
 404  * privileges. The rollback link restores the most recent version that was not
 405  * written by the target user.
 406  *
 407  * @todo This would probably look a lot nicer in a table.
 408  */
 409 function ucListEdit( $sk, $row ) {
 410         $fname = 'ucListEdit';
 411         wfProfileIn( $fname );
 412
 413         global $wgLang, $wgUser, $wgRequest;
 414         static $messages;
 415         if( !isset( $messages ) ) {
 416                 foreach( explode( ' ', 'uctop diff newarticle rollbacklink diff hist minoreditletter' ) as $msg ) {
 417                         $messages[$msg] = wfMsgExt( $msg, array( 'escape') );
 418                 }
 419         }
 420
 421         $rev = new Revision( $row );
 422
 423         $page = Title::makeTitle( $row->page_namespace, $row->page_title );
 424         $link = $sk->makeKnownLinkObj( $page );
 425         $difftext = $topmarktext = '';
 426         if( $row->rev_id == $row->page_latest ) {
 427                 $topmarktext .= '<strong>' . $messages['uctop'] . '</strong>';
 428                 if( !$row->page_is_new ) {
 429                         $difftext .= '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=0' ) . ')';
 430                 } else {
 431                         $difftext .= $messages['newarticle'];
 432                 }
 433
 434                 if( $wgUser->isAllowed( 'rollback' ) ) {
 435                         $topmarktext .= ' '.$sk->generateRollback( $rev );
 436                 }
 437
 438         }
 439         if( $rev->userCan( Revision::DELETED_TEXT ) ) {
 440                 $difftext = '(' . $sk->makeKnownLinkObj( $page, $messages['diff'], 'diff=prev&oldid='.$row->rev_id ) . ')';
 441         } else {
 442                 $difftext = '(' . $messages['diff'] . ')';
 443         }
 444         $histlink='('.$sk->makeKnownLinkObj( $page, $messages['hist'], 'action=history' ) . ')';
 445
 446         $comment = $sk->revComment( $rev );
 447         $d = $wgLang->timeanddate( wfTimestamp( TS_MW, $row->rev_timestamp ), true );
 448
 449         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 450                 $d = '<span class="history-deleted">' . $d . '</span>';
 451         }
 452
 453         if( $row->rev_minor_edit ) {
 454                 $mflag = '<span class="minor">' . $messages['minoreditletter'] . '</span> ';
 455         } else {
 456                 $mflag = '';
 457         }
 458
 459         $ret = "{$d} {$histlink} {$difftext} {$mflag} {$link} {$comment} {$topmarktext}";
 460         if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 461                 $ret .= ' ' . wfMsgHtml( 'deletedrev' );
 462         }
 463         $ret = "<li>$ret</li>\n";
 464         wfProfileOut( $fname );
 465         return $ret;
 466 }
 467
 468 ?>