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                 $ret = Html::rawElement(
 217                         'li',
 218                         array(),
 219                         "{$del}{$link} {$tools} . . {$mflag} {$pagelink} {$comment}"
 220                 ) . "\n";
 221
 222                 wfProfileOut( __METHOD__ );
 223                 return $ret;
 224         }
 225
 226         /**
 227          * Get the Database object in use
 228          *
 229          * @return Database
 230          */
 231         public function getDatabase() {
 232                 return $this->mDb;
 233         }
 234 }
 235
 236 class DeletedContributionsPage extends SpecialPage {
 237         function __construct() {
 238                 parent::__construct( 'DeletedContributions', 'deletedhistory',
 239                 /*listed*/ true, /*function*/ false, /*file*/ false );
 240         }
 241
 242         /**
 243          * Special page "deleted user contributions".
 244          * Shows a list of the deleted contributions of a user.
 245          *
 246          * @return      none
 247          * @param       $par    String: (optional) user name of the user for which to show the contributions
 248          */
 249         function execute( $par ) {
 250                 global $wgUser;
 251                 $this->setHeaders();
 252
 253                 if ( !$this->userCanExecute( $wgUser ) ) {
 254                         $this->displayRestrictionError();
 255                         return;
 256                 }
 257
 258                 global $wgUser, $wgOut, $wgLang, $wgRequest;
 259
 260                 $wgOut->setPageTitle( wfMsgExt( 'deletedcontributions-title', array( 'parsemag' ) ) );
 261
 262                 $options = array();
 263
 264                 if ( isset( $par ) ) {
 265                         $target = $par;
 266                 } else {
 267                         $target = $wgRequest->getVal( 'target' );
 268                 }
 269
 270                 if ( !strlen( $target ) ) {
 271                         $wgOut->addHTML( $this->getForm( '' ) );
 272                         return;
 273                 }
 274
 275                 $options['limit'] = $wgRequest->getInt( 'limit', 50 );
 276                 $options['target'] = $target;
 277
 278                 $nt = Title::makeTitleSafe( NS_USER, $target );
 279                 if ( !$nt ) {
 280                         $wgOut->addHTML( $this->getForm( '' ) );
 281                         return;
 282                 }
 283                 $id = User::idFromName( $nt->getText() );
 284
 285                 $target = $nt->getText();
 286                 $wgOut->setSubtitle( $this->getSubTitle( $nt, $id ) );
 287
 288                 if ( ( $ns = $wgRequest->getVal( 'namespace', null ) ) !== null && $ns !== '' ) {
 289                         $options['namespace'] = intval( $ns );
 290                 } else {
 291                         $options['namespace'] = '';
 292                 }
 293
 294                 $wgOut->addHTML( $this->getForm( $options ) );
 295
 296                 $pager = new DeletedContribsPager( $target, $options['namespace'] );
 297                 if ( !$pager->getNumRows() ) {
 298                         $wgOut->addWikiMsg( 'nocontribs' );
 299                         return;
 300                 }
 301
 302                 # Show a message about slave lag, if applicable
 303                 if( ( $lag = $pager->getDatabase()->getLag() ) > 0 )
 304                         $wgOut->showLagWarning( $lag );
 305
 306                 $wgOut->addHTML(
 307                         '<p>' . $pager->getNavigationBar() . '</p>' .
 308                         $pager->getBody() .
 309                         '<p>' . $pager->getNavigationBar() . '</p>' );
 310
 311                 # If there were contributions, and it was a valid user or IP, show
 312                 # the appropriate "footer" message - WHOIS tools, etc.
 313                 if( $target != 'newbies' ) {
 314                         $message = IP::isIPAddress( $target )
 315                                 ? 'sp-contributions-footer-anon'
 316                                 : 'sp-contributions-footer';
 317
 318
 319                         $text = wfMsgNoTrans( $message, $target );
 320                         if( !wfEmptyMsg( $message, $text ) && $text != '-' ) {
 321                                 $wgOut->wrapWikiMsg( "<div class='mw-contributions-footer'>\n$1\n</div>", array( $message, $target ) );
 322                         }
 323                 }
 324         }
 325
 326         /**
 327          * Generates the subheading with links
 328          * @param $nt @see Title object for the target
 329          */
 330         function getSubTitle( $nt, $id ) {
 331                 global $wgSysopUserBans, $wgLang, $wgUser;
 332
 333                 $sk = $wgUser->getSkin();
 334
 335                 if ( 0 == $id ) {
 336                         $user = htmlspecialchars( $nt->getText() );
 337                 } else {
 338                         $user = $sk->link( $nt, htmlspecialchars( $nt->getText() ) );
 339                 }
 340                 $talk = $nt->getTalkPage();
 341                 if( $talk ) {
 342                         # Talk page link
 343                         $tools[] = $sk->link( $talk, wfMsgHtml( 'talkpagelinktext' ) );
 344                         if( ( $id != 0 && $wgSysopUserBans ) || ( $id == 0 && User::isIP( $nt->getText() ) ) ) {
 345                                 # Block link
 346                                 if( $wgUser->isAllowed( 'block' ) )
 347                                         $tools[] = $sk->linkKnown(
 348                                                 SpecialPage::getTitleFor( 'Blockip', $nt->getDBkey() ),
 349                                                 wfMsgHtml( 'blocklink' )
 350                                         );
 351                                 # Block log link
 352                                 $tools[] = $sk->linkKnown(
 353                                         SpecialPage::getTitleFor( 'Log' ),
 354                                         wfMsgHtml( 'sp-contributions-blocklog' ),
 355                                         array(),
 356                                         array(
 357                                                 'type' => 'block',
 358                                                 'page' => $nt->getPrefixedText()
 359                                         )
 360                                 );
 361                         }
 362                         # Other logs link
 363                         $tools[] = $sk->linkKnown(
 364                                 SpecialPage::getTitleFor( 'Log' ),
 365                                 wfMsgHtml( 'sp-contributions-logs' ),
 366                                 array(),
 367                                 array( 'user' => $nt->getText() )
 368                         );
 369                         # Link to undeleted contributions
 370                         $tools[] = $sk->linkKnown(
 371                                 SpecialPage::getTitleFor( 'Contributions', $nt->getDBkey() ),
 372                                 wfMsgHtml( 'sp-deletedcontributions-contribs' )
 373                         );
 374
 375                         wfRunHooks( 'ContributionsToolLinks', array( $id, $nt, &$tools ) );
 376
 377                         $links = $wgLang->pipeList( $tools );
 378                 }
 379
 380                 // Old message 'contribsub' had one parameter, but that doesn't work for
 381                 // languages that want to put the "for" bit right after $user but before
 382                 // $links.  If 'contribsub' is around, use it for reverse compatibility,
 383                 // otherwise use 'contribsub2'.
 384                 if( wfEmptyMsg( 'contribsub', wfMsg( 'contribsub' ) ) ) {
 385                         return wfMsgHtml( 'contribsub2', $user, $links );
 386                 } else {
 387                         return wfMsgHtml( 'contribsub', "$user ($links)" );
 388                 }
 389         }
 390
 391         /**
 392          * Generates the namespace selector form with hidden attributes.
 393          * @param $options Array: the options to be included.
 394          */
 395         function getForm( $options ) {
 396                 global $wgScript, $wgRequest;
 397
 398                 $options['title'] = SpecialPage::getTitleFor( 'DeletedContributions' )->getPrefixedText();
 399                 if ( !isset( $options['target'] ) ) {
 400                         $options['target'] = '';
 401                 } else {
 402                         $options['target'] = str_replace( '_' , ' ' , $options['target'] );
 403                 }
 404
 405                 if ( !isset( $options['namespace'] ) ) {
 406                         $options['namespace'] = '';
 407                 }
 408
 409                 if ( !isset( $options['contribs'] ) ) {
 410                         $options['contribs'] = 'user';
 411                 }
 412
 413                 if ( $options['contribs'] == 'newbie' ) {
 414                         $options['target'] = '';
 415                 }
 416
 417                 $f = Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) );
 418
 419                 foreach ( $options as $name => $value ) {
 420                         if ( in_array( $name, array( 'namespace', 'target', 'contribs' ) ) ) {
 421                                 continue;
 422                         }
 423                         $f .= "\t" . Xml::hidden( $name, $value ) . "\n";
 424                 }
 425
 426                 $f .=  Xml::openElement( 'fieldset' ) .
 427                         Xml::element( 'legend', array(), wfMsg( 'sp-contributions-search' ) ) .
 428                         Xml::tags( 'label', array( 'for' => 'target' ), wfMsgExt( 'sp-contributions-username', 'parseinline' ) ) . ' ' .
 429                         Html::input( 'target', $options['target'], 'text', array(
 430                                 'size' => '20',
 431                                 'required' => ''
 432                         ) + ( $options['target'] ? array() : array( 'autofocus' ) ) ) . ' '.
 433                         Xml::label( wfMsg( 'namespace' ), 'namespace' ) . ' ' .
 434                         Xml::namespaceSelector( $options['namespace'], '' ) . ' ' .
 435                         Xml::submitButton( wfMsg( 'sp-contributions-submit' ) ) .
 436                         Xml::closeElement( 'fieldset' ) .
 437                         Xml::closeElement( 'form' );
 438                 return $f;
 439         }
 440 }