includes/specials/SpecialDeletedContributions.php

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