getRequest();
$this->mAction = $request->getVal( 'action' );
$this->mTarget = $request->getVal( 'target' );
$this->mDest = $request->getVal( 'dest' );
$this->mSubmitted = $request->getBool( 'submitted' );
$this->mTargetID = intval( $request->getVal( 'targetID' ) );
$this->mDestID = intval( $request->getVal( 'destID' ) );
$this->mTimestamp = $request->getVal( 'mergepoint' );
if ( !preg_match( '/[0-9]{14}/', $this->mTimestamp ) ) {
$this->mTimestamp = '';
}
$this->mComment = $request->getText( 'wpComment' );
$this->mMerge = $request->wasPosted()
&& $this->getUser()->matchEditToken( $request->getVal( 'wpEditToken' ) );
// target page
if ( $this->mSubmitted ) {
$this->mTargetObj = Title::newFromURL( $this->mTarget );
$this->mDestObj = Title::newFromURL( $this->mDest );
} else {
$this->mTargetObj = null;
$this->mDestObj = null;
}
$this->preCacheMessages();
}
/**
* As we use the same small set of messages in various methods and that
* they are called often, we call them once and save them in $this->message
*/
function preCacheMessages() {
// Precache various messages
if ( !isset( $this->message ) ) {
$this->message['last'] = $this->msg( 'last' )->escaped();
}
}
public function execute( $par ) {
$this->checkPermissions();
$this->checkReadOnly();
$this->loadRequestParams();
$this->setHeaders();
$this->outputHeader();
if ( $this->mTargetID && $this->mDestID && $this->mAction == 'submit' && $this->mMerge ) {
$this->merge();
return;
}
if ( !$this->mSubmitted ) {
$this->showMergeForm();
return;
}
$errors = array();
if ( !$this->mTargetObj instanceof Title ) {
$errors[] = $this->msg( 'mergehistory-invalid-source' )->parseAsBlock();
} elseif ( !$this->mTargetObj->exists() ) {
$errors[] = $this->msg( 'mergehistory-no-source',
wfEscapeWikiText( $this->mTargetObj->getPrefixedText() )
)->parseAsBlock();
}
if ( !$this->mDestObj instanceof Title ) {
$errors[] = $this->msg( 'mergehistory-invalid-destination' )->parseAsBlock();
} elseif ( !$this->mDestObj->exists() ) {
$errors[] = $this->msg( 'mergehistory-no-destination',
wfEscapeWikiText( $this->mDestObj->getPrefixedText() )
)->parseAsBlock();
}
if ( $this->mTargetObj && $this->mDestObj && $this->mTargetObj->equals( $this->mDestObj ) ) {
$errors[] = $this->msg( 'mergehistory-same-destination' )->parseAsBlock();
}
if ( count( $errors ) ) {
$this->showMergeForm();
$this->getOutput()->addHTML( implode( "\n", $errors ) );
} else {
$this->showHistory();
}
}
function showMergeForm() {
$out = $this->getOutput();
$out->addWikiMsg( 'mergehistory-header' );
$out->addHTML(
Xml::openElement( 'form', array(
'method' => 'get',
'action' => wfScript() ) ) .
'' .
''
);
$this->addHelpLink( 'Help:Merge history' );
}
private function showHistory() {
$this->showMergeForm();
# List all stored revisions
$revisions = new MergeHistoryPager(
$this, array(), $this->mTargetObj, $this->mDestObj
);
$haveRevisions = $revisions && $revisions->getNumRows() > 0;
$out = $this->getOutput();
$titleObj = $this->getPageTitle();
$action = $titleObj->getLocalURL( array( 'action' => 'submit' ) );
# Start the form here
$top = Xml::openElement(
'form',
array(
'method' => 'post',
'action' => $action,
'id' => 'merge'
)
);
$out->addHTML( $top );
if ( $haveRevisions ) {
# Format the user-visible controls (comment field, submission button)
# in a nice little table
$table =
Xml::openElement( 'fieldset' ) .
$this->msg( 'mergehistory-merge', $this->mTargetObj->getPrefixedText(),
$this->mDestObj->getPrefixedText() )->parse() .
Xml::openElement( 'table', array( 'id' => 'mw-mergehistory-table' ) ) .
'
| ' .
Xml::label( $this->msg( 'mergehistory-reason' )->text(), 'wpComment' ) .
' |
' .
Xml::input( 'wpComment', 50, $this->mComment, array( 'id' => 'wpComment' ) ) .
' |
| |
' .
Xml::submitButton(
$this->msg( 'mergehistory-submit' )->text(),
array( 'name' => 'merge', 'id' => 'mw-merge-submit' )
) .
' |
' .
Xml::closeElement( 'table' ) .
Xml::closeElement( 'fieldset' );
$out->addHTML( $table );
}
$out->addHTML(
'' .
$this->msg( 'mergehistory-list' )->escaped() . "
\n"
);
if ( $haveRevisions ) {
$out->addHTML( $revisions->getNavigationBar() );
$out->addHTML( '' );
$out->addHTML( $revisions->getBody() );
$out->addHTML( '
' );
$out->addHTML( $revisions->getNavigationBar() );
} else {
$out->addWikiMsg( 'mergehistory-empty' );
}
# Show relevant lines from the merge log:
$mergeLogPage = new LogPage( 'merge' );
$out->addHTML( '' . $mergeLogPage->getName()->escaped() . "
\n" );
LogEventsList::showLogExtract( $out, 'merge', $this->mTargetObj );
# When we submit, go by page ID to avoid some nasty but unlikely collisions.
# Such would happen if a page was renamed after the form loaded, but before submit
$misc = Html::hidden( 'targetID', $this->mTargetObj->getArticleID() );
$misc .= Html::hidden( 'destID', $this->mDestObj->getArticleID() );
$misc .= Html::hidden( 'target', $this->mTarget );
$misc .= Html::hidden( 'dest', $this->mDest );
$misc .= Html::hidden( 'wpEditToken', $this->getUser()->getEditToken() );
$misc .= Xml::closeElement( 'form' );
$out->addHTML( $misc );
return true;
}
function formatRevisionRow( $row ) {
$rev = new Revision( $row );
$stxt = '';
$last = $this->message['last'];
$ts = wfTimestamp( TS_MW, $row->rev_timestamp );
$checkBox = Xml::radio( 'mergepoint', $ts, ( $this->mTimestamp === $ts ) );
$user = $this->getUser();
$pageLink = Linker::linkKnown(
$rev->getTitle(),
htmlspecialchars( $this->getLanguage()->userTimeAndDate( $ts, $user ) ),
array(),
array( 'oldid' => $rev->getId() )
);
if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
$pageLink = '' . $pageLink . '';
}
# Last link
if ( !$rev->userCan( Revision::DELETED_TEXT, $user ) ) {
$last = $this->message['last'];
} elseif ( isset( $this->prevId[$row->rev_id] ) ) {
$last = Linker::linkKnown(
$rev->getTitle(),
$this->message['last'],
array(),
array(
'diff' => $row->rev_id,
'oldid' => $this->prevId[$row->rev_id]
)
);
}
$userLink = Linker::revUserTools( $rev );
$size = $row->rev_len;
if ( !is_null( $size ) ) {
$stxt = Linker::formatRevisionSize( $size );
}
$comment = Linker::revComment( $rev );
return Html::rawElement( 'li', array(),
$this->msg( 'mergehistory-revisionrow' )
->rawParams( $checkBox, $last, $pageLink, $userLink, $stxt, $comment )->escaped() );
}
/**
* Actually attempt the history move
*
* @todo if all versions of page A are moved to B and then a user
* tries to do a reverse-merge via the "unmerge" log link, then page
* A will still be a redirect (as it was after the original merge),
* though it will have the old revisions back from before (as expected).
* The user may have to "undo" the redirect manually to finish the "unmerge".
* Maybe this should delete redirects at the target page of merges?
*
* @return bool Success
*/
function merge() {
# Get the titles directly from the IDs, in case the target page params
# were spoofed. The queries are done based on the IDs, so it's best to
# keep it consistent...
$targetTitle = Title::newFromID( $this->mTargetID );
$destTitle = Title::newFromID( $this->mDestID );
if ( is_null( $targetTitle ) || is_null( $destTitle ) ) {
return false; // validate these
}
if ( $targetTitle->getArticleID() == $destTitle->getArticleID() ) {
return false;
}
# Verify that this timestamp is valid
# Must be older than the destination page
$dbw = wfGetDB( DB_MASTER );
# Get timestamp into DB format
$this->mTimestamp = $this->mTimestamp ? $dbw->timestamp( $this->mTimestamp ) : '';
# Max timestamp should be min of destination page
$maxtimestamp = $dbw->selectField(
'revision',
'MIN(rev_timestamp)',
array( 'rev_page' => $this->mDestID ),
__METHOD__
);
# Destination page must exist with revisions
if ( !$maxtimestamp ) {
$this->getOutput()->addWikiMsg( 'mergehistory-fail' );
return false;
}
# Get the latest timestamp of the source
$lasttimestamp = $dbw->selectField(
array( 'page', 'revision' ),
'rev_timestamp',
array( 'page_id' => $this->mTargetID, 'page_latest = rev_id' ),
__METHOD__
);
# $this->mTimestamp must be older than $maxtimestamp
if ( $this->mTimestamp >= $maxtimestamp ) {
$this->getOutput()->addWikiMsg( 'mergehistory-fail' );
return false;
}
# Get the timestamp pivot condition
if ( $this->mTimestamp ) {
$timewhere = "rev_timestamp <= {$this->mTimestamp}";
$timestampLimit = wfTimestamp( TS_MW, $this->mTimestamp );
} else {
$timewhere = "rev_timestamp <= {$maxtimestamp}";
$timestampLimit = wfTimestamp( TS_MW, $lasttimestamp );
}
# Check that there are not too many revisions to move
$limit = 5000; // avoid too much slave lag
$count = $dbw->selectRowCount( 'revision', '1',
array( 'rev_page' => $this->mTargetID, $timewhere ),
__METHOD__,
array( 'LIMIT' => $limit + 1 )
);
if ( $count > $limit ) {
$this->getOutput()->addWikiMsg( 'mergehistory-fail-toobig' );
return false;
}
# Do the moving...
$dbw->update(
'revision',
array( 'rev_page' => $this->mDestID ),
array( 'rev_page' => $this->mTargetID, $timewhere ),
__METHOD__
);
$count = $dbw->affectedRows();
# Make the source page a redirect if no revisions are left
$haveRevisions = $dbw->selectField(
'revision',
'rev_timestamp',
array( 'rev_page' => $this->mTargetID ),
__METHOD__,
array( 'FOR UPDATE' )
);
if ( !$haveRevisions ) {
if ( $this->mComment ) {
$comment = $this->msg(
'mergehistory-comment',
$targetTitle->getPrefixedText(),
$destTitle->getPrefixedText(),
$this->mComment
)->inContentLanguage()->text();
} else {
$comment = $this->msg(
'mergehistory-autocomment',
$targetTitle->getPrefixedText(),
$destTitle->getPrefixedText()
)->inContentLanguage()->text();
}
$contentHandler = ContentHandler::getForTitle( $targetTitle );
$redirectContent = $contentHandler->makeRedirectContent( $destTitle );
if ( $redirectContent ) {
$redirectPage = WikiPage::factory( $targetTitle );
$redirectRevision = new Revision( array(
'title' => $targetTitle,
'page' => $this->mTargetID,
'comment' => $comment,
'content' => $redirectContent ) );
$redirectRevision->insertOn( $dbw );
$redirectPage->updateRevisionOn( $dbw, $redirectRevision );
# Now, we record the link from the redirect to the new title.
# It should have no other outgoing links...
$dbw->delete( 'pagelinks', array( 'pl_from' => $this->mDestID ), __METHOD__ );
$dbw->insert( 'pagelinks',
array(
'pl_from' => $this->mDestID,
'pl_from_namespace' => $destTitle->getNamespace(),
'pl_namespace' => $destTitle->getNamespace(),
'pl_title' => $destTitle->getDBkey() ),
__METHOD__
);
} else {
// would be nice to show a warning if we couldn't create a redirect
}
} else {
$targetTitle->invalidateCache(); // update histories
}
$destTitle->invalidateCache(); // update histories
# Check if this did anything
if ( !$count ) {
$this->getOutput()->addWikiMsg( 'mergehistory-fail' );
return false;
}
# Update our logs
$logEntry = new ManualLogEntry( 'merge', 'merge' );
$logEntry->setPerformer( $this->getUser() );
$logEntry->setComment( $this->mComment );
$logEntry->setTarget( $targetTitle );
$logEntry->setParameters( array(
'4::dest' => $destTitle->getPrefixedText(),
'5::mergepoint' => $timestampLimit
) );
$logId = $logEntry->insert();
$logEntry->publish( $logId );
# @todo message should use redirect=no
$this->getOutput()->addWikiText( $this->msg( 'mergehistory-success',
$targetTitle->getPrefixedText(), $destTitle->getPrefixedText() )->numParams(
$count )->text() );
Hooks::run( 'ArticleMergeComplete', array( $targetTitle, $destTitle ) );
return true;
}
protected function getGroupName() {
return 'pagetools';
}
}
class MergeHistoryPager extends ReverseChronologicalPager {
/** @var IContextSource */
public $mForm;
/** @var array */
public $mConds;
function __construct( $form, $conds, $source, $dest ) {
$this->mForm = $form;
$this->mConds = $conds;
$this->title = $source;
$this->articleID = $source->getArticleID();
$dbr = wfGetDB( DB_SLAVE );
$maxtimestamp = $dbr->selectField(
'revision',
'MIN(rev_timestamp)',
array( 'rev_page' => $dest->getArticleID() ),
__METHOD__
);
$this->maxTimestamp = $maxtimestamp;
parent::__construct( $form->getContext() );
}
function getStartBody() {
# Do a link batch query
$this->mResult->seek( 0 );
$batch = new LinkBatch();
# Give some pointers to make (last) links
$this->mForm->prevId = array();
foreach ( $this->mResult as $row ) {
$batch->addObj( Title::makeTitleSafe( NS_USER, $row->user_name ) );
$batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->user_name ) );
$rev_id = isset( $rev_id ) ? $rev_id : $row->rev_id;
if ( $rev_id > $row->rev_id ) {
$this->mForm->prevId[$rev_id] = $row->rev_id;
} elseif ( $rev_id < $row->rev_id ) {
$this->mForm->prevId[$row->rev_id] = $rev_id;
}
$rev_id = $row->rev_id;
}
$batch->execute();
$this->mResult->seek( 0 );
return '';
}
function formatRow( $row ) {
return $this->mForm->formatRevisionRow( $row );
}
function getQueryInfo() {
$conds = $this->mConds;
$conds['rev_page'] = $this->articleID;
$conds[] = "rev_timestamp < " . $this->mDb->addQuotes( $this->maxTimestamp );
return array(
'tables' => array( 'revision', 'page', 'user' ),
'fields' => array_merge( Revision::selectFields(), Revision::selectUserFields() ),
'conds' => $conds,
'join_conds' => array(
'page' => Revision::pageJoinCond(),
'user' => Revision::userJoinCond() )
);
}
function getIndexField() {
return 'rev_timestamp';
}
}