329 lines
9.4 KiB
PHP
329 lines
9.4 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup RevisionDelete
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*/
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/**
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* Abstract base class for a list of deletable items. The list class
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* needs to be able to make a query from a set of identifiers to pull
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* relevant rows, to return RevDelItem subclasses wrapping them, and
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* to wrap bulk update operations.
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*/
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abstract class RevDelList extends RevisionListBase {
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function __construct( IContextSource $context, Title $title, array $ids ) {
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parent::__construct( $context, $title );
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$this->ids = $ids;
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}
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/**
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* Get the DB field name associated with the ID list.
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* This used to populate the log_search table for finding log entries.
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* Override this function.
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* @return string|null
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*/
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public static function getRelationType() {
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return null;
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}
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/**
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* Get the user right required for this list type
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* Override this function.
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* @since 1.22
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* @return string|null
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*/
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public static function getRestriction() {
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return null;
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}
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/**
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* Get the revision deletion constant for this list type
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* Override this function.
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* @since 1.22
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* @return int|null
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*/
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public static function getRevdelConstant() {
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return null;
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}
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/**
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* Suggest a target for the revision deletion
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* Optionally override this function.
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* @since 1.22
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* @param Title|null $target User-supplied target
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* @param array $ids
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* @return Title|null
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*/
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public static function suggestTarget( $target, array $ids ) {
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return $target;
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}
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/**
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* Set the visibility for the revisions in this list. Logging and
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* transactions are done here.
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*
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* @param array $params Associative array of parameters. Members are:
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* value: ExtractBitParams() bitfield array
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* comment: The log comment.
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* perItemStatus: Set if you want per-item status reports
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* @return Status
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* @since 1.23 Added 'perItemStatus' param
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*/
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public function setVisibility( $params ) {
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$bitPars = $params['value'];
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$comment = $params['comment'];
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$perItemStatus = isset( $params['perItemStatus'] ) ? $params['perItemStatus'] : false;
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// CAS-style checks are done on the _deleted fields so the select
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// does not need to use FOR UPDATE nor be in the atomic section
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$dbw = wfGetDB( DB_MASTER );
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$this->res = $this->doQuery( $dbw );
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$dbw->startAtomic( __METHOD__ );
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$status = Status::newGood();
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$missing = array_flip( $this->ids );
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$this->clearFileOps();
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$idsForLog = array();
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$authorIds = $authorIPs = array();
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if ( $perItemStatus ) {
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$status->itemStatuses = array();
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}
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// @codingStandardsIgnoreStart Generic.CodeAnalysis.ForLoopWithTestFunctionCall.NotAllowed
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for ( $this->reset(); $this->current(); $this->next() ) {
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// @codingStandardsIgnoreEnd
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/** @var $item RevDelItem */
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$item = $this->current();
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unset( $missing[$item->getId()] );
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if ( $perItemStatus ) {
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$itemStatus = Status::newGood();
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$status->itemStatuses[$item->getId()] = $itemStatus;
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} else {
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$itemStatus = $status;
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}
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$oldBits = $item->getBits();
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// Build the actual new rev_deleted bitfield
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$newBits = RevisionDeleter::extractBitfield( $bitPars, $oldBits );
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if ( $oldBits == $newBits ) {
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$itemStatus->warning( 'revdelete-no-change', $item->formatDate(), $item->formatTime() );
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$status->failCount++;
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continue;
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} elseif ( $oldBits == 0 && $newBits != 0 ) {
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$opType = 'hide';
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} elseif ( $oldBits != 0 && $newBits == 0 ) {
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$opType = 'show';
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} else {
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$opType = 'modify';
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}
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if ( $item->isHideCurrentOp( $newBits ) ) {
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// Cannot hide current version text
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$itemStatus->error( 'revdelete-hide-current', $item->formatDate(), $item->formatTime() );
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$status->failCount++;
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continue;
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}
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if ( !$item->canView() ) {
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// Cannot access this revision
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$msg = ( $opType == 'show' ) ?
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'revdelete-show-no-access' : 'revdelete-modify-no-access';
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$itemStatus->error( $msg, $item->formatDate(), $item->formatTime() );
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$status->failCount++;
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continue;
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}
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// Cannot just "hide from Sysops" without hiding any fields
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if ( $newBits == Revision::DELETED_RESTRICTED ) {
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$itemStatus->warning( 'revdelete-only-restricted', $item->formatDate(), $item->formatTime() );
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$status->failCount++;
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continue;
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}
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// Update the revision
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$ok = $item->setBits( $newBits );
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if ( $ok ) {
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$idsForLog[] = $item->getId();
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$status->successCount++;
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if ( $item->getAuthorId() > 0 ) {
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$authorIds[] = $item->getAuthorId();
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} elseif ( IP::isIPAddress( $item->getAuthorName() ) ) {
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$authorIPs[] = $item->getAuthorName();
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}
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} else {
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$itemStatus->error( 'revdelete-concurrent-change', $item->formatDate(), $item->formatTime() );
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$status->failCount++;
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}
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}
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// Handle missing revisions
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foreach ( $missing as $id => $unused ) {
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if ( $perItemStatus ) {
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$status->itemStatuses[$id] = Status::newFatal( 'revdelete-modify-missing', $id );
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} else {
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$status->error( 'revdelete-modify-missing', $id );
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}
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$status->failCount++;
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}
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if ( $status->successCount == 0 ) {
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$dbw->rollback( __METHOD__ );
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return $status;
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}
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// Save success count
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$successCount = $status->successCount;
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// Move files, if there are any
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$status->merge( $this->doPreCommitUpdates() );
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if ( !$status->isOK() ) {
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// Fatal error, such as no configured archive directory
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$dbw->rollback( __METHOD__ );
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return $status;
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}
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// Log it
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// @FIXME: $newBits/$oldBits set in for loop, makes IDE warnings too
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$this->updateLog( array(
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'title' => $this->title,
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'count' => $successCount,
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'newBits' => $newBits,
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'oldBits' => $oldBits,
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'comment' => $comment,
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'ids' => $idsForLog,
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'authorIds' => $authorIds,
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'authorIPs' => $authorIPs
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) );
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// Clear caches
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$that = $this;
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$dbw->onTransactionIdle( function() use ( $that ) {
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$that->doPostCommitUpdates();
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} );
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$dbw->endAtomic( __METHOD__ );
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return $status;
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}
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/**
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* Reload the list data from the master DB. This can be done after setVisibility()
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* to allow $item->getHTML() to show the new data.
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*/
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function reloadFromMaster() {
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$dbw = wfGetDB( DB_MASTER );
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$this->res = $this->doQuery( $dbw );
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}
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/**
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* Record a log entry on the action
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* @param array $params Associative array of parameters:
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* newBits: The new value of the *_deleted bitfield
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* oldBits: The old value of the *_deleted bitfield.
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* title: The target title
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* ids: The ID list
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* comment: The log comment
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* authorsIds: The array of the user IDs of the offenders
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* authorsIPs: The array of the IP/anon user offenders
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* @throws MWException
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*/
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protected function updateLog( $params ) {
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// Get the URL param's corresponding DB field
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$field = RevisionDeleter::getRelationType( $this->getType() );
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if ( !$field ) {
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throw new MWException( "Bad log URL param type!" );
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}
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// Put things hidden from sysops in the oversight log
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if ( ( $params['newBits'] | $params['oldBits'] ) & $this->getSuppressBit() ) {
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$logType = 'suppress';
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} else {
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$logType = 'delete';
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}
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// Add params for affected page and ids
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$logParams = $this->getLogParams( $params );
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// Actually add the deletion log entry
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$logEntry = new ManualLogEntry( $logType, $this->getLogAction() );
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$logEntry->setTarget( $params['title'] );
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$logEntry->setComment( $params['comment'] );
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$logEntry->setParameters( $logParams );
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$logEntry->setPerformer( $this->getUser() );
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// Allow for easy searching of deletion log items for revision/log items
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$logEntry->setRelations( array(
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$field => $params['ids'],
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'target_author_id' => $params['authorIds'],
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'target_author_ip' => $params['authorIPs'],
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) );
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$logId = $logEntry->insert();
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$logEntry->publish( $logId );
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}
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/**
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* Get the log action for this list type
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* @return string
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*/
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public function getLogAction() {
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return 'revision';
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}
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/**
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* Get log parameter array.
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* @param array $params Associative array of log parameters, same as updateLog()
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* @return array
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*/
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public function getLogParams( $params ) {
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return array(
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'4::type' => $this->getType(),
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'5::ids' => $params['ids'],
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'6::ofield' => $params['oldBits'],
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'7::nfield' => $params['newBits'],
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);
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}
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/**
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* Clear any data structures needed for doPreCommitUpdates() and doPostCommitUpdates()
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* STUB
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*/
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public function clearFileOps() {
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}
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/**
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* A hook for setVisibility(): do batch updates pre-commit.
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* STUB
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* @return Status
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*/
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public function doPreCommitUpdates() {
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return Status::newGood();
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}
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/**
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* A hook for setVisibility(): do any necessary updates post-commit.
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* STUB
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* @return Status
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*/
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public function doPostCommitUpdates() {
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return Status::newGood();
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}
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/**
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* Get the integer value of the flag used for suppression
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*/
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abstract public function getSuppressBit();
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}
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