includes/specials/SpecialDeletedContributions.php

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