+++ /dev/null
-<?php
-/**
- * Implements Special:RevisionMove
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @file
- * @ingroup SpecialPage
- */
-
-/**
- * Special page allowing users with the appropriate permissions to
- * move revisions of a page to a new target (either an existing page or not)
- *
- * The user selects revisions in the page history (HistoryPage.php),
- * clicks on the submit button and gets this special page.
- * A form is shown (showForm()) where the user has to enter a target page
- * name and confirm the action with a post request & edit token.
- * Then submit() is called, which does some checks and calls moveRevisions().
- * If the target doesn't exist, a new page gets created. rev_page of the
- * selected revisions is updated, after that it is determined whether page_latest
- * of the target page and the source page require an update.
- *
- * **** NOTE: This feature is EXPERIMENTAL. ****
- * **** Do not use on any productive system. ****
- *
- * @ingroup SpecialPage
- * @todo In case page_deleted gets introduced some day, use it.
- * Currently it is possible with RevisionMove to make the latest revision
- * of a page a RevisionDeleted one. When that happens, the user is presented
- * an empty page with no error message whatsoever (in case he is not permitted
- * to view deleted edits).
-*/
-class SpecialRevisionMove extends UnlistedSpecialPage {
- # common objects
- var $mOldTitle; # Title object.
- var $mNewTitle; # Title object. Desired new title
- var $request; # WebRequest object, $wgRequest by default
- var $skin; # Skin object
- var $user; # User object
-
- # variables
- var $mIds; # Array of Ids to look at
- var $mRevlist; # RevDel_RevisionList object - borrowed from RevisionDelete
- var $mReason; # User-supplied reason for performing the move operation
- var $mSubmit; # Boolean: Is this a submitted request?
- var $mIsAllowedRevisionMove = false;
-
- public function __construct( $name = 'RevisionMove' ) {
- parent::__construct( $name );
- }
-
- /**
- * @param $par subpage part, standard special page parameter, is ignored here
- *
- * Mostly initializes variables and calls either showForm() or submit()
- */
- public function execute( $par ) {
- global $wgUser, $wgOut;
-
- $this->setHeaders();
- $this->outputHeader();
-
- $this->mIsAllowedRevisionMove = $wgUser->isAllowed( 'revisionmove' );
- $this->user = $wgUser;
- $this->skin = $wgUser->getSkin();
-
- if ( !$this->request instanceof WebRequest ) {
- $this->request = $GLOBALS['wgRequest'];
- }
-
- # Get correct title
- if ( $this->request->getVal( 'action' ) == 'historysubmit' ) {
- $this->mOldTitle = Title::newFromText( $this->request->getVal( 'title' ) );
- } else {
- $this->mOldTitle = Title::newFromText( $this->request->getVal( 'oldTitle' ) );
- }
-
- if ( !$this->mOldTitle instanceof Title ) {
- $wgOut->showErrorPage( 'revmove-badparam-title', 'revmove-badparam' );
- return;
- }
-
- $wgOut->setPagetitle( wfMsg( 'revisionmove', $this->mOldTitle->getPrefixedText() ) );
- $oldTitleLink = $this->skin->link( $this->mOldTitle );
- $wgOut->setSubtitle( wfMsg( 'revisionmove-backlink', $oldTitleLink ) );
-
- $this->mReason = $this->request->getText( 'wpReason' );
-
- # TODO maybe not needed here? Copied from SpecialRevisiondelete.php.
- # Keep for now, allow different inputs
- # Handle our many different possible input types for ids
- $ids = $this->request->getVal( 'ids' );
- if ( !is_null( $ids ) ) {
- # Allow CSV, for backwards compatibility, or a single ID for show/hide links
- $this->mIds = explode( ',', $ids );
- } else {
- # Array input
- $this->mIds = array_keys( $this->request->getArray( 'ids', array() ) );
- }
- $this->mIds = array_unique( array_filter( $this->mIds ) );
-
- if ( is_null ( $this->mIds ) ) {
- $wgOut->showErrorPage( 'revmove-badparam-title', 'revmove-badparam' );
- return;
- }
- $this->mRevlist = new RevDel_RevisionList( $this, $this->mOldTitle, $this->mIds );
-
- # Decide what to do: Show the form, or submit the changes
- if ( $this->request->wasPosted() ) {
- $this->submit();
- } else {
- $this->showForm();
- }
- }
-
- /**
- * Show a list of items that we will operate on and a field for the target name
- */
- public function showForm() {
- global $wgOut, $wgUser;
-
- if ( !$this->mIsAllowedRevisionMove ) {
- $permErrors = $this->mOldTitle->getUserPermissionsErrors( 'revisionmove', $this->user );
- $wgOut->showPermissionsErrorPage( $permErrors, 'revisionmove' );
- return false;
- }
-
- $wgOut->addWikiMsg( 'revmove-explain', $this->mOldTitle->getPrefixedText() );
- $listNotEmpty = $this->listItems();
- if ( !$listNotEmpty ) {
- return; # we're done, we already displayed an error earlier
- }
-
- $out = Xml::openElement( 'form', array( 'method' => 'post',
- 'action' => $this->getTitle()->getLocalUrl( array( 'action' => 'submit' ) ),
- 'id' => 'mw-revmove-form' ) ) .
- Xml::fieldset( wfMsg( 'revmove-legend' ) ) .
- Html::hidden( 'wpEditToken', $wgUser->editToken() ) .
- Html::hidden( 'oldTitle', $this->mOldTitle->getPrefixedText() ) .
- '<div>' . Xml::inputLabel( wfMsg( 'revmove-reasonfield' ), 'wpReason',
- 'revmove-reasonfield', 60 ) . '</div>' .
- Xml::inputLabel( wfMsg( 'revmove-titlefield' ), 'newTitle', 'revmove-titlefield', 20,
- $this->mOldTitle->getPrefixedText() ) .
- Html::hidden( 'ids', implode( ',', $this->mIds ) ) .
- Xml::submitButton( wfMsg( 'revmove-submit' ),
- array( 'name' => 'wpSubmit' ) ) .
- Xml::closeElement( 'fieldset' ) . "\n" .
- Xml::closeElement( 'form' ) . "\n";
- $wgOut->addHTML( $out );
- }
-
- /**
- * Show a list of selected revisions and check the input
- */
- protected function listItems() {
- global $wgOut;
-
- $wgOut->addHTML( "<ul>" );
-
- $numRevisions = 0;
-
- # No revisions specified at all
- if ( $this->mIds == array() ) {
- $wgOut->showErrorPage( 'revmove-norevisions-title', 'revmove-norevisions' );
- return false;
- }
-
- for ( $this->mRevlist->reset(); $this->mRevlist->current(); $this->mRevlist->next() ) {
- $item = $this->mRevlist->current();
- $numRevisions++;
- $wgOut->addHTML( $item->getHTML() );
- }
-
- # No valid revisions specified (e.g. only revs belonging to another page)
- if ( $numRevisions == 0 ) {
- $wgOut->showErrorPage( 'revmove-norevisions-title', 'revmove-norevisions' );
- return false;
- }
-
- $wgOut->addHTML( "</ul>" );
-
- return true;
- }
-
- /**
- * Submit the posted changes (in $this->request).
- *
- * This function does some checks and then calls moveRevisions(), which does the real work
- */
- public function submit() {
- global $wgUser, $wgOut;
-
- # Confirm permissions
- if ( !$this->mIsAllowedRevisionMove ) {
- $permErrors = $this->mOldTitle->getUserPermissionsErrors( 'revisionmove', $this->user );
- $wgOut->showPermissionsErrorPage( $permErrors, 'revisionmove' );
- return false;
- }
-
- # Confirm Token
- if ( !$wgUser->matchEditToken( $this->request->getVal( 'wpEditToken' ) ) ) {
- $wgOut->showErrorPage( 'sessionfailure-title', 'sessionfailure' );
- return false;
- }
-
- $this->mNewTitle = Title::newFromText( $this->request->getVal( 'newTitle' ) );
- if ( !$this->mNewTitle instanceof Title ) {
- $wgOut->showErrorPage( 'badtitle', 'badtitletext' );
- return false;
- }
-
- if ( $this->mNewTitle->getPrefixedText() == $this->mOldTitle->getPrefixedText() ) {
- $pagename = array( $this->mOldTitle->getPrefixedText() );
- $wgOut->showErrorPage( 'revmove-nullmove-title', 'revmove-nullmove', $pagename );
- return;
- }
-
- $this->moveRevisions();
- }
-
- /**
- * This function actually move the revision. NEVER call this function, call submit()
- */
- protected function moveRevisions() {
- $oldArticle = new Article( $this->mOldTitle );
- $newArticle = new Article( $this->mNewTitle );
-
- # Get DB connection and begin transaction
- $dbw = wfGetDB( DB_MASTER );
- $dbw->begin();
-
- # Check if the target exists. If not, try creating it
- if ( !$this->mNewTitle->exists() ) {
- $newArticle->insertOn( $dbw );
- $this->createArticle = true;
- } else {
- $this->createArticle = false;
- }
-
- # This is where the magic happens:
- # Update revision table
- $dbw->update( 'revision',
- array( 'rev_page' => $this->mNewTitle->getArticleID() ),
- array(
- 'rev_id' => $this->mIds,
- 'rev_page' => $this->mOldTitle->getArticleID(),
- ),
- __METHOD__
- );
- $modifiedRevsNum = $dbw->affectedRows();
-
- # Check if we need to update page_latest
- # Get the latest version of the revisions we are moving
- $timestampNewPage = $this->queryLatestTimestamp(
- $this->mNewTitle->getArticleID(),
- array( 'rev_id' => $this->mIds )
- );
-
- # Compare the new page's page_latest against db query.
- # If we create a new page, we have to update anyway
-
- $currentNewPageRev = Revision::newFromId( $this->mNewTitle->getLatestRevID() );
- if ( $this->createArticle || $timestampNewPage > $currentNewPageRev->getTimestamp() ) {
- # we have to set page_latest to $timestampNewPage's revid
- $this->updatePageLatest(
- $this->mNewTitle,
- $newArticle,
- $timestampNewPage,
- array( 'rev_id' => $this->mIds )
- );
- }
-
- # Update the old page's page_latest field
- $timestampOldPage = $this->queryLatestTimestamp(
- $this->mOldTitle->getArticleID()
- );
-
- # If the timestamp is null that means the page doesn't have
- # any revisions associated and should be deleted. In other words,
- # someone misused revisionmove for the normal move function.
- if ( is_null( $timestampOldPage ) ) {
- $dbw->delete(
- 'page',
- array( 'page_id' => $this->mOldTitle->getArticleID() ),
- __METHOD__
- );
- } else {
- # page_latest has to be updated
- $currentOldPageRev = Revision::newFromId( $this->mOldTitle->getLatestRevID() );
- if ( $timestampOldPage < $currentOldPageRev->getTimestamp() ) {
- $this->updatePageLatest(
- $this->mOldTitle,
- $oldArticle,
- $timestampOldPage
- );
- }
- # Purge the old one only if it hasn't been deleted
- $oldArticle->doPurge();
- }
-
- # All done, commit
- $dbw->commit();
-
- $this->logMove( $modifiedRevsNum );
-
- # Purge new article
- $newArticle->doPurge();
-
- # If noting went wrong (i.e. returned), we are successful
- $this->showSuccess( $modifiedRevsNum );
- }
-
- /**
- * Query for the latest timestamp in order to update page_latest and
- * page_timestamp.
- * @param $articleId Integer page_id
- * @param $conds array database conditions
- *
- * @return String timestamp
- */
- protected function queryLatestTimestamp( $articleId, $conds = array() ) {
- $dbw = wfGetDB( DB_MASTER );
- $timestampNewRow = $dbw->selectRow(
- 'revision',
- 'max(rev_timestamp) AS maxtime',
- array_merge( array( 'rev_page' => $articleId ), $conds ),
- __METHOD__
- );
- return $timestampNewRow->maxtime;
- }
-
- /**
- * Updates page_latest and similar database fields (see Article::updateRevisionOn).
- * Called two times, for the new and the old page
- *
- * @param $articleTitle Title object of the page
- * @param $articleObj Article object of the page
- * @param $timestamp to search for (use queryLatestTimestamp to get the latest)
- * @param $conds array database conditions
- *
- * @return boolean indicating success
- */
- protected function updatePageLatest( $articleTitle, $articleObj, $timestamp, $conds = array() ) {
- $dbw = wfGetDB( DB_MASTER );
- # Query to find out the rev_id
- $revisionRow = $dbw->selectRow(
- 'revision',
- 'rev_id',
- array_merge( array(
- 'rev_timestamp' => $timestamp,
- 'rev_page' => $articleTitle->getArticleID(),
- ), $conds ),
- __METHOD__
- );
-
- # Update page_latest
- $latestRev = Revision::newFromId( $revisionRow->rev_id );
- return $articleObj->updateRevisionOn( $dbw, $latestRev, $articleTitle->getLatestRevID(), null,
- /* set new page flag */ true );
- }
-
- /**
- * Add a log entry for the revision move
- */
- protected function logMove( $modifiedRevsNum ) {
- $paramArray = array(
- $this->mNewTitle->getPrefixedText(),
- $modifiedRevsNum
- );
-
- $log = new LogPage( 'move' );
- $log->addEntry( 'move_rev', $this->mOldTitle, $this->mReason, $paramArray, $this->user );
- }
-
- protected function showSuccess( $modifiedRevsNum ) {
- global $wgOut;
-
- if ( $this->createArticle ) {
- $wgOut->addWikiMsg( 'revmove-success-created', $modifiedRevsNum,
- $this->mOldTitle->getPrefixedText(), $this->mNewTitle->getPrefixedText() );
- } else {
- $wgOut->addWikiMsg( 'revmove-success-existing', $modifiedRevsNum,
- $this->mOldTitle->getPrefixedText(), $this->mNewTitle->getPrefixedText() );
- }
- }
-}
dépôts / lhc / web / wiklou.git / commitdiff