includes/specials/SpecialDeletedContributions.php

   1 <?php
   2 /**
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  * http://www.gnu.org/copyleft/gpl.html
  18  */
  19
  20 /**
  21  * Implements Special:DeletedContributions to display archived revisions
  22  * @ingroup SpecialPage
  23  */
  24
  25 class DeletedContribsPager extends IndexPager {
  26         public $mDefaultDirection = true;
  27         var $messages, $target;
  28         var $namespace = '', $mDb;
  29
  30         function __construct( $target, $namespace = false ) {
  31                 parent::__construct();
  32                 $msgs = array( 'deletionlog', 'undeleteviewlink', 'diff' );
  33                 foreach( $msgs as $msg ) {
  34                         $this->messages[$msg] = wfMsgExt( $msg, array( 'escapenoentities') );
  35                 }
  36                 $this->target = $target;
  37                 $this->namespace = $namespace;
  38                 $this->mDb = wfGetDB( DB_SLAVE, 'contributions' );
  39         }
  40
  41         function getDefaultQuery() {
  42                 $query = parent::getDefaultQuery();
  43                 $query['target'] = $this->target;
  44                 return $query;
  45         }
  46
  47         function getQueryInfo() {
  48                 global $wgUser;
  49                 list( $index, $userCond ) = $this->getUserCond();
  50                 $conds = array_merge( $userCond, $this->getNamespaceCond() );
  51                 // Paranoia: avoid brute force searches (bug 17792)
  52                 if( !$wgUser->isAllowed( 'deletedhistory' ) ) {
  53                         $conds[] = $this->mDb->bitAnd('ar_deleted',Revision::DELETED_USER) . ' = 0';
  54                 } else if( !$wgUser->isAllowed( 'suppressrevision' ) ) {
  55                         $conds[] = $this->mDb->bitAnd('ar_deleted',Revision::SUPPRESSED_USER) .
  56                                 ' != ' . Revision::SUPPRESSED_USER;
  57                 }
  58                 return array(
  59                         'tables' => array( 'archive' ),
  60                         'fields' => array(
  61                                 'ar_rev_id', 'ar_namespace', 'ar_title', 'ar_timestamp', 'ar_comment', 'ar_minor_edit',
  62                                 'ar_user', 'ar_user_text', 'ar_deleted'
  63                         ),
  64                         'conds' => $conds,
  65                         'options' => array( 'USE INDEX' => $index )
  66                 );
  67         }
  68
  69         function getUserCond() {
  70                 $condition = array();
  71
  72                 $condition['ar_user_text'] = $this->target;
  73                 $index = 'usertext_timestamp';
  74
  75                 return array( $index, $condition );
  76         }
  77
  78         function getIndexField() {
  79                 return 'ar_timestamp';
  80         }
  81
  82         function getStartBody() {
  83                 return "<ul>\n";
  84         }
  85
  86         function getEndBody() {
  87                 return "</ul>\n";
  88         }
  89
  90         function getNavigationBar() {
  91                 global $wgLang;
  92
  93                 if ( isset( $this->mNavigationBar ) ) {
  94                         return $this->mNavigationBar;
  95                 }
  96                 $fmtLimit = $wgLang->formatNum( $this->mLimit );
  97                 $linkTexts = array(
  98                         'prev' => wfMsgExt( 'pager-newer-n', array( 'escape', 'parsemag' ), $fmtLimit ),
  99                         'next' => wfMsgExt( 'pager-older-n', array( 'escape', 'parsemag' ), $fmtLimit ),
 100                         'first' => wfMsgHtml( 'histlast' ),
 101                         'last' => wfMsgHtml( 'histfirst' )
 102                 );
 103
 104                 $pagingLinks = $this->getPagingLinks( $linkTexts );
 105                 $limitLinks = $this->getLimitLinks();
 106                 $limits = $wgLang->pipeList( $limitLinks );
 107
 108                 $this->mNavigationBar = "(" . $wgLang->pipeList( array( $pagingLinks['first'], $pagingLinks['last'] ) ) . ") " .
 109                         wfMsgExt( 'viewprevnext', array( 'parsemag', 'escape', 'replaceafter' ), $pagingLinks['prev'], $pagingLinks['next'], $limits );
 110                 return $this->mNavigationBar;
 111         }
 112
 113         function getNamespaceCond() {
 114                 if ( $this->namespace !== '' ) {
 115                         return array( 'ar_namespace' => (int)$this->namespace );
 116                 } else {
 117                         return array();
 118                 }
 119         }
 120
 121         /**
 122          * Generates each row in the contributions list.
 123          *
 124          * Contributions which are marked "top" are currently on top of the history.
 125          * For these contributions, a [rollback] link is shown for users with sysop
 126          * privileges. The rollback link restores the most recent version that was not
 127          * written by the target user.
 128          *
 129          * @todo This would probably look a lot nicer in a table.
 130          */
 131         function formatRow( $row ) {
 132                 global $wgUser, $wgLang;
 133                 wfProfileIn( __METHOD__ );
 134
 135                 $sk = $this->getSkin();
 136
 137                 $rev = new Revision( array(
 138                                 'id'         => $row->ar_rev_id,
 139                                 'comment'    => $row->ar_comment,
 140                                 'user'       => $row->ar_user,
 141                                 'user_text'  => $row->ar_user_text,
 142                                 'timestamp'  => $row->ar_timestamp,
 143                                 'minor_edit' => $row->ar_minor_edit,
 144                                 'deleted'    => $row->ar_deleted,
 145                                 ) );
 146
 147                 $page = Title::makeTitle( $row->ar_namespace, $row->ar_title );
 148
 149                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 150
 151                 $logs = SpecialPage::getTitleFor( 'Log' );
 152                 $dellog = $sk->linkKnown(
 153                         $logs,
 154                         $this->messages['deletionlog'],
 155                         array(),
 156                         array(
 157                                 'type' => 'delete',
 158                                 'page' => $page->getPrefixedText()
 159                         )
 160                 );
 161
 162                 $reviewlink = $sk->linkKnown(
 163                         SpecialPage::getTitleFor( 'Undelete', $page->getPrefixedDBkey() ),
 164                         $this->messages['undeleteviewlink']
 165                 );
 166
 167                 if( $wgUser->isAllowed('deletedtext') ) {
 168                         $last = $sk->linkKnown(
 169                                 $undelete,
 170                                 $this->messages['diff'],
 171                                 array(),
 172                                 array(
 173                                         'target' => $page->getPrefixedText(),
 174                                         'timestamp' => $rev->getTimestamp(),
 175                                         'diff' => 'prev'
 176                                 )
 177                         );
 178                 } else {
 179                         $last = $this->messages['diff'];
 180                 }
 181
 182                 $comment = $sk->revComment( $rev );
 183                 $date = htmlspecialchars( $wgLang->timeanddate( $rev->getTimestamp(), true ) );
 184
 185                 if( !$wgUser->isAllowed('undelete') || !$rev->userCan(Revision::DELETED_TEXT) ) {
 186                         $link = $date; // unusable link
 187                 } else {
 188                         $link = $sk->linkKnown(
 189                                 $undelete,
 190                                 $date,
 191                                 array(),
 192                                 array(
 193                                         'target' => $page->getPrefixedText(),
 194                                         'timestamp' => $rev->getTimestamp()
 195                                 )
 196                         );
 197                 }
 198                 // Style deleted items
 199                 if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
 200                         $link = '<span class="history-deleted">' . $link . '</span>';
 201                 }
 202
 203                 $pagelink = $sk->link( $page );
 204
 205                 if( $rev->isMinor() ) {
 206                         $mflag = ChangesList::flag( 'minor' );
 207                 } else {
 208                         $mflag = '';
 209                 }
 210
 211                 // Revision delete link
 212                 $canHide = $wgUser->isAllowed( 'deleterevision' );
 213                 if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) {
 214                         if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
 215                                 $del = $this->mSkin->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops
 216                         } else {
 217                                 $query = array(
 218                                         'type' => 'archive',
 219                                         'target' => $page->getPrefixedDbkey(),
 220                                         'ids' => $rev->getTimestamp() );
 221                                 $del = $this->mSkin->revDeleteLink( $query,
 222                                         $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide ) . ' ';
 223                         }
 224                 } else {
 225                         $del = '';
 226                 }
 227
 228                 $tools = Html::rawElement(
 229                         'span',
 230                         array( 'class' => 'mw-deletedcontribs-tools' ),
 231                         wfMsg( 'parentheses', $wgLang->pipeList( array( $last, $dellog, $reviewlink ) ) )
 232                 );
 233
 234                 $ret = "{$del}{$link} {$tools} . . {$mflag} {$pagelink} {$comment}";
 235
 236                 # Denote if username is redacted for this edit
 237                 if( $rev->isDeleted( Revision::DELETED_USER ) ) {
 238                         $ret .= " <strong>" . wfMsgHtml('rev-deleted-user-contribs') . "</strong>";
 239                 }
 240
 241                 $ret = Html::rawElement( 'li', array(), $ret ) . "\n";
 242
 243                 wfProfileOut( __METHOD__ );
 244                 return $ret;
 245         }
 246
 247         /**
 248          * Get the Database object in use
 249          *
 250          * @return Database
 251          */
 252         public function getDatabase() {
 253                 return $this->mDb;
 254         }
 255 }
 256
 257 class DeletedContributionsPage extends SpecialPage {
 258         function __construct() {
 259                 parent::__construct( 'DeletedContributions', 'deletedhistory',
 260                 /*listed*/ true, /*function*/ false, /*file*/ false );
 261         }
 262
 263         /**
 264          * Special page "deleted user contributions".
 265          * Shows a list of the deleted contributions of a user.
 266          *
 267          * @return      none
 268          * @param       $par    String: (optional) user name of the user for which to show the contributions
 269          */
 270         function execute( $par ) {
 271                 global $wgUser;
 272                 $this->setHeaders();
 273
 274                 if ( !$this->userCanExecute( $wgUser ) ) {
 275                         $this->displayRestrictionError();
 276                         return;
 277                 }
 278
 279                 global $wgOut, $wgLang, $wgRequest;
 280
 281                 $wgOut->setPageTitle( wfMsgExt( 'deletedcontributions-title', array( 'parsemag' ) ) );
 282
 283                 $options = array();
 284
 285                 if ( isset( $par ) ) {
 286                         $target = $par;
 287                 } else {
 288                         $target = $wgRequest->getVal( 'target' );
 289                 }
 290
 291                 if ( !strlen( $target ) ) {
 292                         $wgOut->addHTML( $this->getForm( '' ) );
 293                         return;
 294                 }
 295
 296                 $options['limit'] = $wgRequest->getInt( 'limit', 50 );
 297                 $options['target'] = $target;
 298
 299                 $nt = Title::makeTitleSafe( NS_USER, $target );
 300                 if ( !$nt ) {
 301                         $wgOut->addHTML( $this->getForm( '' ) );
 302                         return;
 303                 }
 304                 $id = User::idFromName( $nt->getText() );
 305
 306                 $target = $nt->getText();
 307                 $wgOut->setSubtitle( $this->getSubTitle( $nt, $id ) );
 308
 309                 if ( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 310                         $options['namespace'] = intval( $ns );
 311                 } else {
 312                         $options['namespace'] = '';
 313                 }
 314
 315                 $wgOut->addHTML( $this->getForm( $options ) );
 316
 317                 $pager = new DeletedContribsPager( $target, $options['namespace'] );
 318                 if ( !$pager->getNumRows() ) {
 319                         $wgOut->addWikiMsg( 'nocontribs' );
 320                         return;
 321                 }
 322
 323                 # Show a message about slave lag, if applicable
 324                 if( ( $lag = $pager->getDatabase()->getLag() ) > 0 )
 325                         $wgOut->showLagWarning( $lag );
 326
 327                 $wgOut->addHTML(
 328                         '<p>' . $pager->getNavigationBar() . '</p>' .
 329                         $pager->getBody() .
 330                         '<p>' . $pager->getNavigationBar() . '</p>' );
 331
 332                 # If there were contributions, and it was a valid user or IP, show
 333                 # the appropriate "footer" message - WHOIS tools, etc.
 334                 if( $target != 'newbies' ) {
 335                         $message = IP::isIPAddress( $target )
 336                                 ? 'sp-contributions-footer-anon'
 337                                 : 'sp-contributions-footer';
 338
 339
 340                         $text = wfMsgNoTrans( $message, $target );
 341                         if( !wfEmptyMsg( $message, $text ) && $text != '-' ) {
 342                                 $wgOut->wrapWikiMsg( "<div class='mw-contributions-footer'>\n$1\n</div>", array( $message, $target ) );
 343                         }
 344                 }
 345         }
 346
 347         /**
 348          * Generates the subheading with links
 349          * @param $nt Title object for the target
 350          * @param $id Integer: User ID for the target
 351          * @return String: appropriately-escaped HTML to be output literally
 352          * @todo Fixme: almost the same as contributionsSub in SpecialContributions.php. Could be combined.
 353          */
 354         function getSubTitle( $nt, $id ) {
 355                 global $wgSysopUserBans, $wgLang, $wgUser, $wgOut;
 356
 357                 $sk = $wgUser->getSkin();
 358
 359                 if ( $id === null ) {
 360                         $user = htmlspecialchars( $nt->getText() );
 361                 } else {
 362                         $user = $sk->link( $nt, htmlspecialchars( $nt->getText() ) );
 363                 }
 364                 $userObj = User::newFromName( $nt->getText(), /* check for username validity not needed */ false );
 365                 $talk = $nt->getTalkPage();
 366                 if( $talk ) {
 367                         # Talk page link
 368                         $tools[] = $sk->link( $talk, wfMsgHtml( 'sp-contributions-talk' ) );
 369                         if( ( $id !== null && $wgSysopUserBans ) || ( $id === null && IP::isIPAddress( $nt->getText() ) ) ) {
 370                                 if( $wgUser->isAllowed( 'block' ) ) { # Block / Change block / Unblock links
 371                                         if ( $userObj->isBlocked() ) {
 372                                                 $tools[] = $sk->linkKnown( # Change block link
 373                                                         SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ),
 374                                                         wfMsgHtml( 'change-blocklink' )
 375                                                 );
 376                                                 $tools[] = $sk->linkKnown( # Unblock link
 377                                                         SpecialPage::getTitleFor( 'BlockList' ),
 378                                                         wfMsgHtml( 'unblocklink' ),
 379                                                         array(),
 380                                                         array(
 381                                                                 'action' => 'unblock',
 382                                                                 'ip' => $nt->getDBkey()
 383                                                         )
 384                                                 );
 385                                         }
 386                                         else { # User is not blocked
 387                                                 $tools[] = $sk->linkKnown( # Block link
 388                                                         SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ),
 389                                                         wfMsgHtml( 'blocklink' )
 390                                                 );
 391                                         }
 392                                 }
 393                                 # Block log link
 394                                 $tools[] = $sk->linkKnown(
 395                                         SpecialPage::getTitleFor( 'Log' ),
 396                                         wfMsgHtml( 'sp-contributions-blocklog' ),
 397                                         array(),
 398                                         array(
 399                                                 'type' => 'block',
 400                                                 'page' => $nt->getPrefixedText()
 401                                         )
 402                                 );
 403                         }
 404                         # Other logs link
 405                         $tools[] = $sk->linkKnown(
 406                                 SpecialPage::getTitleFor( 'Log' ),
 407                                 wfMsgHtml( 'sp-contributions-logs' ),
 408                                 array(),
 409                                 array( 'user' => $nt->getText() )
 410                         );
 411                         # Link to contributions
 412                         $tools[] = $sk->linkKnown(
 413                                 SpecialPage::getTitleFor( 'Contributions', $nt->getDBkey() ),
 414                                 wfMsgHtml( 'sp-deletedcontributions-contribs' )
 415                         );
 416
 417                         # Add a link to change user rights for privileged users
 418                         $userrightsPage = new UserrightsPage();
 419                         if( $id !== null && $userrightsPage->userCanChangeRights( User::newFromId( $id ) ) ) {
 420                                 $tools[] = $sk->linkKnown(
 421                                         SpecialPage::getTitleFor( 'Userrights', $nt->getDBkey() ),
 422                                         wfMsgHtml( 'sp-contributions-userrights' )
 423                                 );
 424                         }
 425
 426                         wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 427
 428                         $links = $wgLang->pipeList( $tools );
 429
 430                         // Show a note if the user is blocked and display the last block log entry.
 431                         if ( $userObj->isBlocked() ) {
 432                                 LogEventsList::showLogExtract(
 433                                         $wgOut,
 434                                         'block',
 435                                         $nt->getPrefixedText(),
 436                                         '',
 437                                         array(
 438                                                 'lim' => 1,
 439                                                 'showIfEmpty' => false,
 440                                                 'msgKey' => array(
 441                                                         'sp-contributions-blocked-notice',
 442                                                         $nt->getText() # Support GENDER in 'sp-contributions-blocked-notice'
 443                                                 ),
 444                                                 'offset' => '' # don't use $wgRequest parameter offset
 445                                         )
 446                                 );
 447                         }
 448                 }
 449
 450                 // Old message 'contribsub' had one parameter, but that doesn't work for
 451                 // languages that want to put the "for" bit right after $user but before
 452                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 453                 // otherwise use 'contribsub2'.
 454                 if( wfEmptyMsg( 'contribsub', wfMsg( 'contribsub' ) ) ) {
 455                         return wfMsgHtml( 'contribsub2', $user, $links );
 456                 } else {
 457                         return wfMsgHtml( 'contribsub', "$user ($links)" );
 458                 }
 459         }
 460
 461         /**
 462          * Generates the namespace selector form with hidden attributes.
 463          * @param $options Array: the options to be included.
 464          */
 465         function getForm( $options ) {
 466                 global $wgScript, $wgRequest;
 467
 468                 $options['title'] = SpecialPage::getTitleFor( 'DeletedContributions' )->getPrefixedText();
 469                 if ( !isset( $options['target'] ) ) {
 470                         $options['target'] = '';
 471                 } else {
 472                         $options['target'] = str_replace( '_' , ' ' , $options['target'] );
 473                 }
 474
 475                 if ( !isset( $options['namespace'] ) ) {
 476                         $options['namespace'] = '';
 477                 }
 478
 479                 if ( !isset( $options['contribs'] ) ) {
 480                         $options['contribs'] = 'user';
 481                 }
 482
 483                 if ( $options['contribs'] == 'newbie' ) {
 484                         $options['target'] = '';
 485                 }
 486
 487                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );
 488
 489                 foreach ( $options as $name => $value ) {
 490                         if ( in_array( $name, array( 'namespace', 'target', 'contribs' ) ) ) {
 491                                 continue;
 492                         }
 493                         $f .= "\t" . Xml::hidden( $name, $value ) . "\n";
 494                 }
 495
 496                 $f .=  Xml::openElement( 'fieldset' ) .
 497                         Xml::element( 'legend', array(), wfMsg( 'sp-contributions-search' ) ) .
 498                         Xml::tags( 'label', array( 'for' => 'target' ), wfMsgExt( 'sp-contributions-username', 'parseinline' ) ) . ' ' .
 499                         Html::input( 'target', $options['target'], 'text', array(
 500                                 'size' => '20',
 501                                 'required' => ''
 502                         ) + ( $options['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
 503                         Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
 504                         Xml::namespaceSelector( $options['namespace'], '' ) . ' ' .
 505                         Xml::submitButton( wfMsg( 'sp-contributions-submit' ) ) .
 506                         Xml::closeElement( 'fieldset' ) .
 507                         Xml::closeElement( 'form' );
 508                 return $f;
 509         }
 510 }