title = $title; } /** * List all deleted pages recorded in the archive table. Returns result * wrapper with (ar_namespace, ar_title, count) fields, ordered by page * namespace/title. * * @return ResultWrapper */ public static function listAllPages() { $dbr = wfGetDB( DB_SLAVE ); return self::listPages( $dbr, '' ); } /** * List deleted pages recorded in the archive table matching the * given title prefix. * Returns result wrapper with (ar_namespace, ar_title, count) fields. * * @param $prefix String: title prefix * @return ResultWrapper */ public static function listPagesByPrefix( $prefix ) { $dbr = wfGetDB( DB_SLAVE ); $title = Title::newFromText( $prefix ); if( $title ) { $ns = $title->getNamespace(); $prefix = $title->getDBkey(); } else { // Prolly won't work too good // @todo handle bare namespace names cleanly? $ns = 0; } $conds = array( 'ar_namespace' => $ns, 'ar_title' . $dbr->buildLike( $prefix, $dbr->anyString() ), ); return self::listPages( $dbr, $conds ); } protected static function listPages( $dbr, $condition ) { return $dbr->resultObject( $dbr->select( array( 'archive' ), array( 'ar_namespace', 'ar_title', 'COUNT(*) AS count' ), $condition, __METHOD__, array( 'GROUP BY' => 'ar_namespace,ar_title', 'ORDER BY' => 'ar_namespace,ar_title', 'LIMIT' => 100, ) ) ); } /** * List the revisions of the given page. Returns result wrapper with * (ar_minor_edit, ar_timestamp, ar_user, ar_user_text, ar_comment) fields. * * @return ResultWrapper */ function listRevisions() { $dbr = wfGetDB( DB_SLAVE ); $res = $dbr->select( 'archive', array( 'ar_minor_edit', 'ar_timestamp', 'ar_user', 'ar_user_text', 'ar_comment', 'ar_len', 'ar_deleted' ), array( 'ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey() ), 'PageArchive::listRevisions', array( 'ORDER BY' => 'ar_timestamp DESC' ) ); $ret = $dbr->resultObject( $res ); return $ret; } /** * List the deleted file revisions for this page, if it's a file page. * Returns a result wrapper with various filearchive fields, or null * if not a file page. * * @return ResultWrapper * @todo Does this belong in Image for fuller encapsulation? */ function listFiles() { if( $this->title->getNamespace() == NS_FILE ) { $dbr = wfGetDB( DB_SLAVE ); $res = $dbr->select( 'filearchive', array( 'fa_id', 'fa_name', 'fa_archive_name', 'fa_storage_key', 'fa_storage_group', 'fa_size', 'fa_width', 'fa_height', 'fa_bits', 'fa_metadata', 'fa_media_type', 'fa_major_mime', 'fa_minor_mime', 'fa_description', 'fa_user', 'fa_user_text', 'fa_timestamp', 'fa_deleted' ), array( 'fa_name' => $this->title->getDBkey() ), __METHOD__, array( 'ORDER BY' => 'fa_timestamp DESC' ) ); $ret = $dbr->resultObject( $res ); return $ret; } return null; } /** * Fetch (and decompress if necessary) the stored text for the deleted * revision of the page with the given timestamp. * * @param $timestamp String * @return String * @deprecated Use getRevision() for more flexible information */ function getRevisionText( $timestamp ) { $rev = $this->getRevision( $timestamp ); return $rev ? $rev->getText() : null; } /** * Return a Revision object containing data for the deleted revision. * Note that the result *may* or *may not* have a null page ID. * * @param $timestamp String * @return Revision */ function getRevision( $timestamp ) { $dbr = wfGetDB( DB_SLAVE ); $row = $dbr->selectRow( 'archive', array( 'ar_rev_id', 'ar_text', 'ar_comment', 'ar_user', 'ar_user_text', 'ar_timestamp', 'ar_minor_edit', 'ar_flags', 'ar_text_id', 'ar_deleted', 'ar_len' ), array( 'ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), 'ar_timestamp' => $dbr->timestamp( $timestamp ) ), __METHOD__ ); if( $row ) { return Revision::newFromArchiveRow( $row, array( 'page' => $this->title->getArticleId() ) ); } else { return null; } } /** * Return the most-previous revision, either live or deleted, against * the deleted revision given by timestamp. * * May produce unexpected results in case of history merges or other * unusual time issues. * * @param $timestamp String * @return Revision or null */ function getPreviousRevision( $timestamp ) { $dbr = wfGetDB( DB_SLAVE ); // Check the previous deleted revision... $row = $dbr->selectRow( 'archive', 'ar_timestamp', array( 'ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), 'ar_timestamp < ' . $dbr->addQuotes( $dbr->timestamp( $timestamp ) ) ), __METHOD__, array( 'ORDER BY' => 'ar_timestamp DESC', 'LIMIT' => 1 ) ); $prevDeleted = $row ? wfTimestamp( TS_MW, $row->ar_timestamp ) : false; $row = $dbr->selectRow( array( 'page', 'revision' ), array( 'rev_id', 'rev_timestamp' ), array( 'page_namespace' => $this->title->getNamespace(), 'page_title' => $this->title->getDBkey(), 'page_id = rev_page', 'rev_timestamp < ' . $dbr->addQuotes( $dbr->timestamp( $timestamp ) ) ), __METHOD__, array( 'ORDER BY' => 'rev_timestamp DESC', 'LIMIT' => 1 ) ); $prevLive = $row ? wfTimestamp( TS_MW, $row->rev_timestamp ) : false; $prevLiveId = $row ? intval( $row->rev_id ) : null; if( $prevLive && $prevLive > $prevDeleted ) { // Most prior revision was live return Revision::newFromId( $prevLiveId ); } elseif( $prevDeleted ) { // Most prior revision was deleted return $this->getRevision( $prevDeleted ); } else { // No prior revision on this page. return null; } } /** * Get the text from an archive row containing ar_text, ar_flags and ar_text_id * * @param $row Object: database row * @return Revision */ function getTextFromRow( $row ) { if( is_null( $row->ar_text_id ) ) { // An old row from MediaWiki 1.4 or previous. // Text is embedded in this row in classic compression format. return Revision::getRevisionText( $row, "ar_" ); } else { // New-style: keyed to the text storage backend. $dbr = wfGetDB( DB_SLAVE ); $text = $dbr->selectRow( 'text', array( 'old_text', 'old_flags' ), array( 'old_id' => $row->ar_text_id ), __METHOD__ ); return Revision::getRevisionText( $text ); } } /** * Fetch (and decompress if necessary) the stored text of the most * recently edited deleted revision of the page. * * If there are no archived revisions for the page, returns NULL. * * @return String */ function getLastRevisionText() { $dbr = wfGetDB( DB_SLAVE ); $row = $dbr->selectRow( 'archive', array( 'ar_text', 'ar_flags', 'ar_text_id' ), array( 'ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey() ), __METHOD__, array( 'ORDER BY' => 'ar_timestamp DESC' ) ); if( $row ) { return $this->getTextFromRow( $row ); } else { return null; } } /** * Quick check if any archived revisions are present for the page. * * @return Boolean */ function isDeleted() { $dbr = wfGetDB( DB_SLAVE ); $n = $dbr->selectField( 'archive', 'COUNT(ar_title)', array( 'ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey() ) ); return ($n > 0); } /** * Restore the given (or all) text and file revisions for the page. * Once restored, the items will be removed from the archive tables. * The deletion log will be updated with an undeletion notice. * * @param $timestamps Array: pass an empty array to restore all revisions, otherwise list the ones to undelete. * @param $comment String * @param $fileVersions Array * @param $unsuppress Boolean * * @return array(number of file revisions restored, number of image revisions restored, log message) * on success, false on failure */ function undelete( $timestamps, $comment = '', $fileVersions = array(), $unsuppress = false ) { // If both the set of text revisions and file revisions are empty, // restore everything. Otherwise, just restore the requested items. $restoreAll = empty( $timestamps ) && empty( $fileVersions ); $restoreText = $restoreAll || !empty( $timestamps ); $restoreFiles = $restoreAll || !empty( $fileVersions ); if( $restoreFiles && $this->title->getNamespace() == NS_FILE ) { $img = wfLocalFile( $this->title ); $this->fileStatus = $img->restore( $fileVersions, $unsuppress ); $filesRestored = $this->fileStatus->successCount; } else { $filesRestored = 0; } if( $restoreText ) { $textRestored = $this->undeleteRevisions( $timestamps, $unsuppress, $comment ); if($textRestored === false) // It must be one of UNDELETE_* return false; } else { $textRestored = 0; } // Touch the log! global $wgContLang; $log = new LogPage( 'delete' ); if( $textRestored && $filesRestored ) { $reason = wfMsgExt( 'undeletedrevisions-files', array( 'content', 'parsemag' ), $wgContLang->formatNum( $textRestored ), $wgContLang->formatNum( $filesRestored ) ); } elseif( $textRestored ) { $reason = wfMsgExt( 'undeletedrevisions', array( 'content', 'parsemag' ), $wgContLang->formatNum( $textRestored ) ); } elseif( $filesRestored ) { $reason = wfMsgExt( 'undeletedfiles', array( 'content', 'parsemag' ), $wgContLang->formatNum( $filesRestored ) ); } else { wfDebug( "Undelete: nothing undeleted...\n" ); return false; } if( trim( $comment ) != '' ) $reason .= wfMsgForContent( 'colon-separator' ) . $comment; $log->addEntry( 'restore', $this->title, $reason ); return array($textRestored, $filesRestored, $reason); } /** * This is the meaty bit -- restores archived revisions of the given page * to the cur/old tables. If the page currently exists, all revisions will * be stuffed into old, otherwise the most recent will go into cur. * * @param $timestamps Array: pass an empty array to restore all revisions, otherwise list the ones to undelete. * @param $comment String * @param $unsuppress Boolean: remove all ar_deleted/fa_deleted restrictions of seletected revs * * @return Mixed: number of revisions restored or false on failure */ private function undeleteRevisions( $timestamps, $unsuppress = false, $comment = '' ) { if ( wfReadOnly() ) return false; $restoreAll = empty( $timestamps ); $dbw = wfGetDB( DB_MASTER ); # Does this page already exist? We'll have to update it... $article = new Article( $this->title ); $options = 'FOR UPDATE'; // lock page $page = $dbw->selectRow( 'page', array( 'page_id', 'page_latest' ), array( 'page_namespace' => $this->title->getNamespace(), 'page_title' => $this->title->getDBkey() ), __METHOD__, $options ); if( $page ) { $makepage = false; # Page already exists. Import the history, and if necessary # we'll update the latest revision field in the record. $newid = 0; $pageId = $page->page_id; $previousRevId = $page->page_latest; # Get the time span of this page $previousTimestamp = $dbw->selectField( 'revision', 'rev_timestamp', array( 'rev_id' => $previousRevId ), __METHOD__ ); if( $previousTimestamp === false ) { wfDebug( __METHOD__.": existing page refers to a page_latest that does not exist\n" ); return 0; } } else { # Have to create a new article... $makepage = true; $previousRevId = 0; $previousTimestamp = 0; } if( $restoreAll ) { $oldones = '1 = 1'; # All revisions... } else { $oldts = implode( ',', array_map( array( &$dbw, 'addQuotes' ), array_map( array( &$dbw, 'timestamp' ), $timestamps ) ) ); $oldones = "ar_timestamp IN ( {$oldts} )"; } /** * Select each archived revision... */ $result = $dbw->select( 'archive', /* fields */ array( 'ar_rev_id', 'ar_text', 'ar_comment', 'ar_user', 'ar_user_text', 'ar_timestamp', 'ar_minor_edit', 'ar_flags', 'ar_text_id', 'ar_deleted', 'ar_page_id', 'ar_len' ), /* WHERE */ array( 'ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones ), __METHOD__, /* options */ array( 'ORDER BY' => 'ar_timestamp' ) ); $ret = $dbw->resultObject( $result ); $rev_count = $dbw->numRows( $result ); if( !$rev_count ) { wfDebug( __METHOD__.": no revisions to restore\n" ); return false; // ??? } $ret->seek( $rev_count - 1 ); // move to last $row = $ret->fetchObject(); // get newest archived rev $ret->seek( 0 ); // move back if( $makepage ) { // Check the state of the newest to-be version... if( !$unsuppress && ($row->ar_deleted & Revision::DELETED_TEXT) ) { return false; // we can't leave the current revision like this! } // Safe to insert now... $newid = $article->insertOn( $dbw ); $pageId = $newid; } else { // Check if a deleted revision will become the current revision... if( $row->ar_timestamp > $previousTimestamp ) { // Check the state of the newest to-be version... if( !$unsuppress && ($row->ar_deleted & Revision::DELETED_TEXT) ) { return false; // we can't leave the current revision like this! } } } $revision = null; $restored = 0; foreach ( $ret as $row ) { // Check for key dupes due to shitty archive integrity. if( $row->ar_rev_id ) { $exists = $dbw->selectField( 'revision', '1', array('rev_id' => $row->ar_rev_id), __METHOD__ ); if( $exists ) continue; // don't throw DB errors } // Insert one revision at a time...maintaining deletion status // unless we are specifically removing all restrictions... $revision = Revision::newFromArchiveRow( $row, array( 'page' => $pageId, 'deleted' => $unsuppress ? 0 : $row->ar_deleted ) ); $revision->insertOn( $dbw ); $restored++; wfRunHooks( 'ArticleRevisionUndeleted', array( &$this->title, $revision, $row->ar_page_id ) ); } # Now that it's safely stored, take it out of the archive $dbw->delete( 'archive', /* WHERE */ array( 'ar_namespace' => $this->title->getNamespace(), 'ar_title' => $this->title->getDBkey(), $oldones ), __METHOD__ ); // Was anything restored at all? if( $restored == 0 ) return 0; if( $revision ) { // Attach the latest revision to the page... $wasnew = $article->updateIfNewerOn( $dbw, $revision, $previousRevId ); if( $newid || $wasnew ) { // Update site stats, link tables, etc $article->createUpdates( $revision ); } if( $newid ) { wfRunHooks( 'ArticleUndelete', array( &$this->title, true, $comment ) ); Article::onArticleCreate( $this->title ); } else { wfRunHooks( 'ArticleUndelete', array( &$this->title, false, $comment ) ); Article::onArticleEdit( $this->title ); } if( $this->title->getNamespace() == NS_FILE ) { $update = new HTMLCacheUpdate( $this->title, 'imagelinks' ); $update->doUpdate(); } } else { // Revision couldn't be created. This is very weird wfDebug( "Undelete: unknown error...\n" ); return false; } return $restored; } function getFileStatus() { return $this->fileStatus; } } /** * Special page allowing users with the appropriate permissions to view * and restore deleted content. * * @ingroup SpecialPage */ class UndeleteForm extends SpecialPage { var $mAction, $mTarget, $mTimestamp, $mRestore, $mInvert, $mTargetObj; var $mTargetTimestamp, $mAllowed, $mCanView, $mComment, $mToken, $mRequest; function __construct( $request = null ) { parent::__construct( 'Undelete', 'deletedhistory' ); if ( $request === null ) { global $wgRequest; $this->mRequest = $wgRequest; } else { $this->mRequest = $request; } } function loadRequest() { global $wgUser; $this->mAction = $this->mRequest->getVal( 'action' ); $this->mTarget = $this->mRequest->getVal( 'target' ); $this->mSearchPrefix = $this->mRequest->getText( 'prefix' ); $time = $this->mRequest->getVal( 'timestamp' ); $this->mTimestamp = $time ? wfTimestamp( TS_MW, $time ) : ''; $this->mFile = $this->mRequest->getVal( 'file' ); $posted = $this->mRequest->wasPosted() && $wgUser->matchEditToken( $this->mRequest->getVal( 'wpEditToken' ) ); $this->mRestore = $this->mRequest->getCheck( 'restore' ) && $posted; $this->mInvert = $this->mRequest->getCheck( 'invert' ) && $posted; $this->mPreview = $this->mRequest->getCheck( 'preview' ) && $posted; $this->mDiff = $this->mRequest->getCheck( 'diff' ); $this->mComment = $this->mRequest->getText( 'wpComment' ); $this->mUnsuppress = $this->mRequest->getVal( 'wpUnsuppress' ) && $wgUser->isAllowed( 'suppressrevision' ); $this->mToken = $this->mRequest->getVal( 'token' ); if ( $wgUser->isAllowed( 'undelete' ) && !$wgUser->isBlocked() ) { $this->mAllowed = true; // user can restore $this->mCanView = true; // user can view content } elseif ( $wgUser->isAllowed( 'deletedtext' ) ) { $this->mAllowed = false; // user cannot restore $this->mCanView = true; // user can view content } else { // user can only view the list of revisions $this->mAllowed = false; $this->mCanView = false; $this->mTimestamp = ''; $this->mRestore = false; } if( $this->mRestore || $this->mInvert ) { $timestamps = array(); $this->mFileVersions = array(); foreach( $_REQUEST as $key => $val ) { $matches = array(); if( preg_match( '/^ts(\d{14})$/', $key, $matches ) ) { array_push( $timestamps, $matches[1] ); } if( preg_match( '/^fileid(\d+)$/', $key, $matches ) ) { $this->mFileVersions[] = intval( $matches[1] ); } } rsort( $timestamps ); $this->mTargetTimestamp = $timestamps; } } function execute( $par ) { global $wgOut, $wgUser; $this->setHeaders(); if ( !$this->userCanExecute( $wgUser ) ) { $this->displayRestrictionError(); return; } $this->outputHeader(); $this->loadRequest(); if ( $this->mAllowed ) { $wgOut->setPagetitle( wfMsg( "undeletepage" ) ); } else { $wgOut->setPagetitle( wfMsg( "viewdeletedpage" ) ); } if( $par != '' ) { $this->mTarget = $par; } if ( $this->mTarget !== '' ) { $this->mTargetObj = Title::newFromURL( $this->mTarget ); } else { $this->mTargetObj = null; } if( is_null( $this->mTargetObj ) ) { # Not all users can just browse every deleted page from the list if( $wgUser->isAllowed( 'browsearchive' ) ) { $this->showSearchForm(); # List undeletable articles if( $this->mSearchPrefix ) { $result = PageArchive::listPagesByPrefix( $this->mSearchPrefix ); $this->showList( $result ); } } else { $wgOut->addWikiMsg( 'undelete-header' ); } return; } if( $this->mTimestamp !== '' ) { return $this->showRevision( $this->mTimestamp ); } if( $this->mFile !== null ) { $file = new ArchivedFile( $this->mTargetObj, '', $this->mFile ); // Check if user is allowed to see this file if ( !$file->exists() ) { $wgOut->addWikiMsg( 'filedelete-nofile', $this->mFile ); return; } else if( !$file->userCan( File::DELETED_FILE ) ) { if( $file->isDeleted( File::DELETED_RESTRICTED ) ) { $wgOut->permissionRequired( 'suppressrevision' ); } else { $wgOut->permissionRequired( 'deletedtext' ); } return false; } elseif ( !$wgUser->matchEditToken( $this->mToken, $this->mFile ) ) { $this->showFileConfirmationForm( $this->mFile ); return false; } else { return $this->showFile( $this->mFile ); } } if( $this->mRestore && $this->mAction == "submit" ) { global $wgUploadMaintenance; if( $wgUploadMaintenance && $this->mTargetObj && $this->mTargetObj->getNamespace() == NS_FILE ) { $wgOut->wrapWikiMsg( "
\n$1\n
\n", array( 'filedelete-maintenance' ) ); return; } return $this->undelete(); } if( $this->mInvert && $this->mAction == "submit" ) { return $this->showHistory( ); } return $this->showHistory(); } function showSearchForm() { global $wgOut, $wgScript; $wgOut->addWikiMsg( 'undelete-header' ); $wgOut->addHTML( Xml::openElement( 'form', array( 'method' => 'get', 'action' => $wgScript ) ) . Xml::fieldset( wfMsg( 'undelete-search-box' ) ) . Html::hidden( 'title', $this->getTitle()->getPrefixedDbKey() ) . Xml::inputLabel( wfMsg( 'undelete-search-prefix' ), 'prefix', 'prefix', 20, $this->mSearchPrefix ) . ' ' . Xml::submitButton( wfMsg( 'undelete-search-submit' ) ) . Xml::closeElement( 'fieldset' ) . Xml::closeElement( 'form' ) ); } // Generic list of deleted pages private function showList( $result ) { global $wgLang, $wgUser, $wgOut; if( $result->numRows() == 0 ) { $wgOut->addWikiMsg( 'undelete-no-results' ); return; } $wgOut->addWikiMsg( 'undeletepagetext', $wgLang->formatNum( $result->numRows() ) ); $sk = $wgUser->getSkin(); $undelete = $this->getTitle(); $wgOut->addHTML( "\n" ); return true; } private function showRevision( $timestamp ) { global $wgLang, $wgUser, $wgOut; $skin = $wgUser->getSkin(); if(!preg_match("/[0-9]{14}/",$timestamp)) return 0; $archive = new PageArchive( $this->mTargetObj ); $rev = $archive->getRevision( $timestamp ); if( !$rev ) { $wgOut->addWikiMsg( 'undeleterevision-missing' ); return; } if( $rev->isDeleted(Revision::DELETED_TEXT) ) { if( !$rev->userCan(Revision::DELETED_TEXT) ) { $wgOut->wrapWikiMsg( "\n", 'rev-deleted-text-permission' ); return; } else { $wgOut->wrapWikiMsg( "\n", 'rev-deleted-text-view' ); $wgOut->addHTML( '
' ); // and we are allowed to see... } } $wgOut->setPageTitle( wfMsg( 'undeletepage' ) ); $link = $skin->linkKnown( $this->getTitle( $this->mTargetObj->getPrefixedDBkey() ), htmlspecialchars( $this->mTargetObj->getPrefixedText() ) ); if( $this->mDiff ) { $previousRev = $archive->getPreviousRevision( $timestamp ); if( $previousRev ) { $this->showDiff( $previousRev, $rev ); if( $wgUser->getOption( 'diffonly' ) ) { return; } else { $wgOut->addHTML( '
' ); } } else { $wgOut->addWikiMsg( 'undelete-nodiff' ); } } // date and time are separate parameters to facilitate localisation. // $time is kept for backward compat reasons. $time = htmlspecialchars( $wgLang->timeAndDate( $timestamp, true ) ); $d = htmlspecialchars( $wgLang->date( $timestamp, true ) ); $t = htmlspecialchars( $wgLang->time( $timestamp, true ) ); $user = $skin->revUserTools( $rev ); if( $this->mPreview ) { $openDiv = '
'; } else { $openDiv = '
'; } // Revision delete links $canHide = $wgUser->isAllowed( 'deleterevision' ); if( $this->mDiff ) { $revdlink = ''; // diffs already have revision delete links } else if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) { if( !$rev->userCan(Revision::DELETED_RESTRICTED ) ) { $revdlink = $skin->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops } else { $query = array( 'type' => 'archive', 'target' => $this->mTargetObj->getPrefixedDBkey(), 'ids' => $rev->getTimestamp() ); $revdlink = $skin->revDeleteLink( $query, $rev->isDeleted( File::DELETED_RESTRICTED ), $canHide ); } } else { $revdlink = ''; } $wgOut->addHTML( $openDiv . $revdlink . wfMsgWikiHtml( 'undelete-revision', $link, $time, $user, $d, $t ) . '
' ); wfRunHooks( 'UndeleteShowRevision', array( $this->mTargetObj, $rev ) ); if( $this->mPreview ) { //Hide [edit]s $popts = $wgOut->parserOptions(); $popts->setEditSection( false ); $wgOut->parserOptions( $popts ); $wgOut->addWikiTextTitleTidy( $rev->getText( Revision::FOR_THIS_USER ), $this->mTargetObj, true ); } $wgOut->addHTML( Xml::element( 'textarea', array( 'readonly' => 'readonly', 'cols' => intval( $wgUser->getOption( 'cols' ) ), 'rows' => intval( $wgUser->getOption( 'rows' ) ) ), $rev->getText( Revision::FOR_THIS_USER ) . "\n" ) . Xml::openElement( 'div' ) . Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getTitle()->getLocalURL( array( 'action' => 'submit' ) ) ) ) . Xml::element( 'input', array( 'type' => 'hidden', 'name' => 'target', 'value' => $this->mTargetObj->getPrefixedDbKey() ) ) . Xml::element( 'input', array( 'type' => 'hidden', 'name' => 'timestamp', 'value' => $timestamp ) ) . Xml::element( 'input', array( 'type' => 'hidden', 'name' => 'wpEditToken', 'value' => $wgUser->editToken() ) ) . Xml::element( 'input', array( 'type' => 'submit', 'name' => 'preview', 'value' => wfMsg( 'showpreview' ) ) ) . Xml::element( 'input', array( 'name' => 'diff', 'type' => 'submit', 'value' => wfMsg( 'showdiff' ) ) ) . Xml::closeElement( 'form' ) . Xml::closeElement( 'div' ) ); } /** * Build a diff display between this and the previous either deleted * or non-deleted edit. * * @param $previousRev Revision * @param $currentRev Revision * @return String: HTML */ function showDiff( $previousRev, $currentRev ) { global $wgOut; $diffEngine = new DifferenceEngine( $previousRev->getTitle() ); $diffEngine->showDiffStyle(); $wgOut->addHTML( "
" . "" . "" . "" . "" . "" . "" . "\n" . "\n" . "" . $diffEngine->generateDiffBody( $previousRev->getText(), $currentRev->getText() ) . "
" . $this->diffHeader( $previousRev, 'o' ) . "" . $this->diffHeader( $currentRev, 'n' ) . "
" . "
\n" ); } private function diffHeader( $rev, $prefix ) { global $wgUser, $wgLang; $sk = $wgUser->getSkin(); $isDeleted = !( $rev->getId() && $rev->getTitle() ); if( $isDeleted ) { /// @todo Fixme: $rev->getTitle() is null for deleted revs...? $targetPage = $this->getTitle(); $targetQuery = array( 'target' => $this->mTargetObj->getPrefixedText(), 'timestamp' => wfTimestamp( TS_MW, $rev->getTimestamp() ) ); } else { /// @todo Fixme getId() may return non-zero for deleted revs... $targetPage = $rev->getTitle(); $targetQuery = array( 'oldid' => $rev->getId() ); } // Add show/hide deletion links if available $canHide = $wgUser->isAllowed( 'deleterevision' ); if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) { $del = ' '; if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) { $del .= $sk->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops } else { $query = array( 'type' => 'archive', 'target' => $this->mTargetObj->getPrefixedDbkey(), 'ids' => $rev->getTimestamp() ); $del .= $sk->revDeleteLink( $query, $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide ); } } else { $del = ''; } return '
' . $sk->link( $targetPage, wfMsgHtml( 'revisionasof', htmlspecialchars( $wgLang->timeanddate( $rev->getTimestamp(), true ) ), htmlspecialchars( $wgLang->date( $rev->getTimestamp(), true ) ), htmlspecialchars( $wgLang->time( $rev->getTimestamp(), true ) ) ), array(), $targetQuery ) . '
' . '
' . $sk->revUserTools( $rev ) . '
' . '
' . '
' . $sk->revComment( $rev ) . $del . '
' . '
'; } /** * Show a form confirming whether a tokenless user really wants to see a file */ private function showFileConfirmationForm( $key ) { global $wgOut, $wgUser, $wgLang; $file = new ArchivedFile( $this->mTargetObj, '', $this->mFile ); $wgOut->addWikiMsg( 'undelete-show-file-confirm', $this->mTargetObj->getText(), $wgLang->date( $file->getTimestamp() ), $wgLang->time( $file->getTimestamp() ) ); $wgOut->addHTML( Xml::openElement( 'form', array( 'method' => 'POST', 'action' => $this->getTitle()->getLocalUrl( 'target=' . urlencode( $this->mTarget ) . '&file=' . urlencode( $key ) . '&token=' . urlencode( $wgUser->editToken( $key ) ) ) ) ) . Xml::submitButton( wfMsg( 'undelete-show-file-submit' ) ) . '' ); } /** * Show a deleted file version requested by the visitor. */ private function showFile( $key ) { global $wgOut, $wgRequest; $wgOut->disable(); # We mustn't allow the output to be Squid cached, otherwise # if an admin previews a deleted image, and it's cached, then # a user without appropriate permissions can toddle off and # nab the image, and Squid will serve it $wgRequest->response()->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' ); $wgRequest->response()->header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' ); $wgRequest->response()->header( 'Pragma: no-cache' ); global $IP; require_once( "$IP/includes/StreamFile.php" ); $repo = RepoGroup::singleton()->getLocalRepo(); $path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key; wfStreamFile( $path ); } private function showHistory( ) { global $wgUser, $wgOut; $sk = $wgUser->getSkin(); if( $this->mAllowed ) { $wgOut->setPagetitle( wfMsg( "undeletepage" ) ); } else { $wgOut->setPagetitle( wfMsg( 'viewdeletedpage' ) ); } $wgOut->wrapWikiMsg( "
\n$1\n
\n", array ( 'undeletepagetitle', $this->mTargetObj->getPrefixedText() ) ); $archive = new PageArchive( $this->mTargetObj ); /* $text = $archive->getLastRevisionText(); if( is_null( $text ) ) { $wgOut->addWikiMsg( "nohistory" ); return; } */ $wgOut->addHTML( '
' ); if ( $this->mAllowed ) { $wgOut->addWikiMsg( "undeletehistory" ); $wgOut->addWikiMsg( "undeleterevdel" ); } else { $wgOut->addWikiMsg( "undeletehistorynoadmin" ); } $wgOut->addHTML( '
' ); # List all stored revisions $revisions = $archive->listRevisions(); $files = $archive->listFiles(); $haveRevisions = $revisions && $revisions->numRows() > 0; $haveFiles = $files && $files->numRows() > 0; # Batch existence check on user and talk pages if( $haveRevisions ) { $batch = new LinkBatch(); foreach ( $revisions as $row ) { $batch->addObj( Title::makeTitleSafe( NS_USER, $row->ar_user_text ) ); $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->ar_user_text ) ); } $batch->execute(); $revisions->seek( 0 ); } if( $haveFiles ) { $batch = new LinkBatch(); foreach ( $files as $row ) { $batch->addObj( Title::makeTitleSafe( NS_USER, $row->fa_user_text ) ); $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->fa_user_text ) ); } $batch->execute(); $files->seek( 0 ); } if ( $this->mAllowed ) { $action = $this->getTitle()->getLocalURL( array( 'action' => 'submit' ) ); # Start the form here $top = Xml::openElement( 'form', array( 'method' => 'post', 'action' => $action, 'id' => 'undelete' ) ); $wgOut->addHTML( $top ); } # Show relevant lines from the deletion log: $wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'delete' ) ) . "\n" ); LogEventsList::showLogExtract( $wgOut, 'delete', $this->mTargetObj->getPrefixedText() ); # Show relevant lines from the suppression log: if( $wgUser->isAllowed( 'suppressionlog' ) ) { $wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'suppress' ) ) . "\n" ); LogEventsList::showLogExtract( $wgOut, 'suppress', $this->mTargetObj->getPrefixedText() ); } if( $this->mAllowed && ( $haveRevisions || $haveFiles ) ) { # Format the user-visible controls (comment field, submission button) # in a nice little table if( $wgUser->isAllowed( 'suppressrevision' ) ) { $unsuppressBox = "   " . Xml::checkLabel( wfMsg('revdelete-unsuppress'), 'wpUnsuppress', 'mw-undelete-unsuppress', $this->mUnsuppress ). " "; } else { $unsuppressBox = ""; } $table = Xml::fieldset( wfMsg( 'undelete-fieldset-title' ) ) . Xml::openElement( 'table', array( 'id' => 'mw-undelete-table' ) ) . " " . wfMsgWikiHtml( 'undeleteextrahelp' ) . " " . Xml::label( wfMsg( 'undeletecomment' ), 'wpComment' ) . " " . Xml::input( 'wpComment', 50, $this->mComment, array( 'id' => 'wpComment' ) ) . "   " . Xml::submitButton( wfMsg( 'undeletebtn' ), array( 'name' => 'restore', 'id' => 'mw-undelete-submit' ) ) . ' ' . Xml::element( 'input', array( 'type' => 'reset', 'value' => wfMsg( 'undeletereset' ), 'id' => 'mw-undelete-reset' ) ) . ' ' . Xml::submitButton( wfMsg( 'undeleteinvert' ), array( 'name' => 'invert', 'id' => 'mw-undelete-invert' ) ) . " " . $unsuppressBox . Xml::closeElement( 'table' ) . Xml::closeElement( 'fieldset' ); $wgOut->addHTML( $table ); } $wgOut->addHTML( Xml::element( 'h2', null, wfMsg( 'history' ) ) . "\n" ); if( $haveRevisions ) { # The page's stored (deleted) history: $wgOut->addHTML(""); } else { $wgOut->addWikiMsg( "nohistory" ); } if( $haveFiles ) { $wgOut->addHTML( Xml::element( 'h2', null, wfMsg( 'filehist' ) ) . "\n" ); $wgOut->addHTML( "" ); } if ( $this->mAllowed ) { # Slip in the hidden controls here $misc = Html::hidden( 'target', $this->mTarget ); $misc .= Html::hidden( 'wpEditToken', $wgUser->editToken() ); $misc .= Xml::closeElement( 'form' ); $wgOut->addHTML( $misc ); } return true; } private function formatRevisionRow( $row, $earliestLiveTime, $remaining, $sk ) { global $wgUser, $wgLang; $rev = Revision::newFromArchiveRow( $row, array( 'page' => $this->mTargetObj->getArticleId() ) ); $stxt = ''; $ts = wfTimestamp( TS_MW, $row->ar_timestamp ); // Build checkboxen... if( $this->mAllowed ) { if( $this->mInvert ) { if( in_array( $ts, $this->mTargetTimestamp ) ) { $checkBox = Xml::check( "ts$ts"); } else { $checkBox = Xml::check( "ts$ts", true ); } } else { $checkBox = Xml::check( "ts$ts" ); } } else { $checkBox = ''; } // Build page & diff links... if( $this->mCanView ) { $titleObj = $this->getTitle(); # Last link if( !$rev->userCan( Revision::DELETED_TEXT ) ) { $pageLink = htmlspecialchars( $wgLang->timeanddate( $ts, true ) ); $last = wfMsgHtml('diff'); } else if( $remaining > 0 || ($earliestLiveTime && $ts > $earliestLiveTime) ) { $pageLink = $this->getPageLink( $rev, $titleObj, $ts, $sk ); $last = $sk->linkKnown( $titleObj, wfMsgHtml('diff'), array(), array( 'target' => $this->mTargetObj->getPrefixedText(), 'timestamp' => $ts, 'diff' => 'prev' ) ); } else { $pageLink = $this->getPageLink( $rev, $titleObj, $ts, $sk ); $last = wfMsgHtml('diff'); } } else { $pageLink = htmlspecialchars( $wgLang->timeanddate( $ts, true ) ); $last = wfMsgHtml('diff'); } // User links $userLink = $sk->revUserTools( $rev ); // Revision text size if( !is_null($size = $row->ar_len) ) { $stxt = $sk->formatRevisionSize( $size ); } // Edit summary $comment = $sk->revComment( $rev ); // Revision delete links $canHide = $wgUser->isAllowed( 'deleterevision' ); if( $canHide || ($rev->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) { if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) { $revdlink = $sk->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops } else { $query = array( 'type' => 'archive', 'target' => $this->mTargetObj->getPrefixedDBkey(), 'ids' => $ts ); $revdlink = $sk->revDeleteLink( $query, $rev->isDeleted( Revision::DELETED_RESTRICTED ), $canHide ); } } else { $revdlink = ''; } return "
  • $checkBox $revdlink ($last) $pageLink . . $userLink $stxt $comment
  • "; } private function formatFileRow( $row, $sk ) { global $wgUser, $wgLang; $file = ArchivedFile::newFromRow( $row ); $ts = wfTimestamp( TS_MW, $row->fa_timestamp ); if( $this->mAllowed && $row->fa_storage_key ) { $checkBox = Xml::check( "fileid" . $row->fa_id ); $key = urlencode( $row->fa_storage_key ); $pageLink = $this->getFileLink( $file, $this->getTitle(), $ts, $key, $sk ); } else { $checkBox = ''; $pageLink = $wgLang->timeanddate( $ts, true ); } $userLink = $this->getFileUser( $file, $sk ); $data = wfMsg( 'widthheight', $wgLang->formatNum( $row->fa_width ), $wgLang->formatNum( $row->fa_height ) ) . ' (' . wfMsg( 'nbytes', $wgLang->formatNum( $row->fa_size ) ) . ')'; $data = htmlspecialchars( $data ); $comment = $this->getFileComment( $file, $sk ); // Add show/hide deletion links if available $canHide = $wgUser->isAllowed( 'deleterevision' ); if( $canHide || ($file->getVisibility() && $wgUser->isAllowed('deletedhistory')) ) { if( !$file->userCan(File::DELETED_RESTRICTED ) ) { $revdlink = $sk->revDeleteLinkDisabled( $canHide ); // revision was hidden from sysops } else { $query = array( 'type' => 'filearchive', 'target' => $this->mTargetObj->getPrefixedDBkey(), 'ids' => $row->fa_id ); $revdlink = $sk->revDeleteLink( $query, $file->isDeleted( File::DELETED_RESTRICTED ), $canHide ); } } else { $revdlink = ''; } return "
  • $checkBox $revdlink $pageLink . . $userLink $data $comment
  • \n"; } /** * Fetch revision text link if it's available to all users * @return string */ function getPageLink( $rev, $titleObj, $ts, $sk ) { global $wgLang; $time = htmlspecialchars( $wgLang->timeanddate( $ts, true ) ); if( !$rev->userCan(Revision::DELETED_TEXT) ) { return '' . $time . ''; } else { $link = $sk->linkKnown( $titleObj, $time, array(), array( 'target' => $this->mTargetObj->getPrefixedText(), 'timestamp' => $ts ) ); if( $rev->isDeleted(Revision::DELETED_TEXT) ) $link = '' . $link . ''; return $link; } } /** * Fetch image view link if it's available to all users * * @return String: HTML fragment */ function getFileLink( $file, $titleObj, $ts, $key, $sk ) { global $wgLang, $wgUser; if( !$file->userCan(File::DELETED_FILE) ) { return '' . $wgLang->timeanddate( $ts, true ) . ''; } else { $link = $sk->linkKnown( $titleObj, $wgLang->timeanddate( $ts, true ), array(), array( 'target' => $this->mTargetObj->getPrefixedText(), 'file' => $key, 'token' => $wgUser->editToken( $key ) ) ); if( $file->isDeleted(File::DELETED_FILE) ) $link = '' . $link . ''; return $link; } } /** * Fetch file's user id if it's available to this user * * @return String: HTML fragment */ function getFileUser( $file, $sk ) { if( !$file->userCan(File::DELETED_USER) ) { return '' . wfMsgHtml( 'rev-deleted-user' ) . ''; } else { $link = $sk->userLink( $file->getRawUser(), $file->getRawUserText() ) . $sk->userToolLinks( $file->getRawUser(), $file->getRawUserText() ); if( $file->isDeleted(File::DELETED_USER) ) $link = '' . $link . ''; return $link; } } /** * Fetch file upload comment if it's available to this user * * @return String: HTML fragment */ function getFileComment( $file, $sk ) { if( !$file->userCan(File::DELETED_COMMENT) ) { return '' . wfMsgHtml( 'rev-deleted-comment' ) . ''; } else { $link = $sk->commentBlock( $file->getRawDescription() ); if( $file->isDeleted(File::DELETED_COMMENT) ) $link = '' . $link . ''; return $link; } } function undelete() { global $wgOut, $wgUser; if ( wfReadOnly() ) { $wgOut->readOnlyPage(); return; } if( !is_null( $this->mTargetObj ) ) { $archive = new PageArchive( $this->mTargetObj ); $ok = $archive->undelete( $this->mTargetTimestamp, $this->mComment, $this->mFileVersions, $this->mUnsuppress ); if( is_array($ok) ) { if ( $ok[1] ) // Undeleted file count wfRunHooks( 'FileUndeleteComplete', array( $this->mTargetObj, $this->mFileVersions, $wgUser, $this->mComment) ); $skin = $wgUser->getSkin(); $link = $skin->linkKnown( $this->mTargetObj ); $wgOut->addHTML( wfMsgWikiHtml( 'undeletedpage', $link ) ); } else { $wgOut->showFatalError( wfMsg( "cannotundelete" ) ); $wgOut->addHTML( '

    ' . wfMsgHtml( "undeleterevdel" ) . '

    ' ); } // Show file deletion warnings and errors $status = $archive->getFileStatus(); if( $status && !$status->isGood() ) { $wgOut->addWikiText( $status->getWikiText( 'undelete-error-short', 'undelete-error-long' ) ); } } else { $wgOut->showFatalError( wfMsg( "cannotundelete" ) ); } return false; } }