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() && $wgUser->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'] = wfMsgExt( 'last', array( 'escape' ) );
}
}
public function execute( $par ) {
global $wgOut, $wgRequest, $wgUser;
if ( wfReadOnly() ) {
$wgOut->readOnlyPage();
return;
}
if( !$this->userCanExecute( $wgUser ) ) {
$this->displayRestrictionError();
return;
}
$this->loadRequestParams( $wgRequest );
$this->setHeaders();
$this->outputHeader();
if( $this->mTargetID && $this->mDestID && $this->mAction == 'submit' && $this->mMerge ) {
return $this->merge();
}
if ( !$this->mSubmitted ) {
$this->showMergeForm();
return;
}
$errors = array();
if ( !$this->mTargetObj instanceof Title ) {
$errors[] = wfMsgExt( 'mergehistory-invalid-source', array( 'parse' ) );
} elseif( !$this->mTargetObj->exists() ) {
$errors[] = wfMsgExt( 'mergehistory-no-source', array( 'parse' ),
wfEscapeWikiText( $this->mTargetObj->getPrefixedText() )
);
}
if ( !$this->mDestObj instanceof Title ) {
$errors[] = wfMsgExt( 'mergehistory-invalid-destination', array( 'parse' ) );
} elseif( !$this->mDestObj->exists() ) {
$errors[] = wfMsgExt( 'mergehistory-no-destination', array( 'parse' ),
wfEscapeWikiText( $this->mDestObj->getPrefixedText() )
);
}
if ( $this->mTargetObj && $this->mDestObj && $this->mTargetObj->equals( $this->mDestObj ) ) {
$errors[] = wfMsgExt( 'mergehistory-same-destination', array( 'parse' ) );
}
if ( count( $errors ) ) {
$this->showMergeForm();
$wgOut->addHTML( implode( "\n", $errors ) );
} else {
$this->showHistory();
}
}
function showMergeForm() {
global $wgOut, $wgScript;
$wgOut->addWikiMsg( 'mergehistory-header' );
$wgOut->addHTML(
Xml::openElement( 'form', array(
'method' => 'get',
'action' => $wgScript ) ) .
'' .
''
);
}
private function showHistory() {
global $wgUser, $wgOut;
$this->sk = $this->getSkin();
$wgOut->setPageTitle( wfMsg( 'mergehistory' ) );
$this->showMergeForm();
# List all stored revisions
$revisions = new MergeHistoryPager(
$this, array(), $this->mTargetObj, $this->mDestObj
);
$haveRevisions = $revisions && $revisions->getNumRows() > 0;
$titleObj = $this->getTitle();
$action = $titleObj->getLocalURL( array( 'action' => 'submit' ) );
# Start the form here
$top = Xml::openElement(
'form',
array(
'method' => 'post',
'action' => $action,
'id' => 'merge'
)
);
$wgOut->addHTML( $top );
if( $haveRevisions ) {
# Format the user-visible controls (comment field, submission button)
# in a nice little table
$table =
Xml::openElement( 'fieldset' ) .
wfMsgExt( 'mergehistory-merge', array( 'parseinline' ),
$this->mTargetObj->getPrefixedText(), $this->mDestObj->getPrefixedText() ) .
Xml::openElement( 'table', array( 'id' => 'mw-mergehistory-table' ) ) .
'
| ' .
Xml::label( wfMsg( 'mergehistory-reason' ), 'wpComment' ) .
' |
' .
Xml::input( 'wpComment', 50, $this->mComment, array( 'id' => 'wpComment' ) ) .
' |
| |
' .
Xml::submitButton( wfMsg( 'mergehistory-submit' ), array( 'name' => 'merge', 'id' => 'mw-merge-submit' ) ) .
' |
' .
Xml::closeElement( 'table' ) .
Xml::closeElement( 'fieldset' );
$wgOut->addHTML( $table );
}
$wgOut->addHTML(
'' .
wfMsgHtml( 'mergehistory-list' ) . "
\n"
);
if( $haveRevisions ) {
$wgOut->addHTML( $revisions->getNavigationBar() );
$wgOut->addHTML( '' );
$wgOut->addHTML( $revisions->getBody() );
$wgOut->addHTML( '
' );
$wgOut->addHTML( $revisions->getNavigationBar() );
} else {
$wgOut->addWikiMsg( 'mergehistory-empty' );
}
# Show relevant lines from the deletion log:
$wgOut->addHTML( '' . htmlspecialchars( LogPage::logName( 'merge' ) ) . "
\n" );
LogEventsList::showLogExtract( $wgOut, 'merge', $this->mTargetObj->getPrefixedText() );
# 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', $wgUser->editToken() );
$misc .= Xml::closeElement( 'form' );
$wgOut->addHTML( $misc );
return true;
}
function formatRevisionRow( $row ) {
global $wgLang;
$rev = new Revision( $row );
$stxt = '';
$last = $this->message['last'];
$ts = wfTimestamp( TS_MW, $row->rev_timestamp );
$checkBox = Xml::radio( 'mergepoint', $ts, false );
$pageLink = $this->sk->linkKnown(
$rev->getTitle(),
htmlspecialchars( $wgLang->timeanddate( $ts ) ),
array(),
array( 'oldid' => $rev->getId() )
);
if( $rev->isDeleted( Revision::DELETED_TEXT ) ) {
$pageLink = '' . $pageLink . '';
}
# Last link
if( !$rev->userCan( Revision::DELETED_TEXT ) ) {
$last = $this->message['last'];
} elseif( isset( $this->prevId[$row->rev_id] ) ) {
$last = $this->sk->linkKnown(
$rev->getTitle(),
$this->message['last'],
array(),
array(
'diff' => $row->rev_id,
'oldid' => $this->prevId[$row->rev_id]
)
);
}
$userLink = $this->sk->revUserTools( $rev );
$size = $row->rev_len;
if( !is_null( $size ) ) {
$stxt = $this->sk->formatRevisionSize( $size );
}
$comment = $this->sk->revComment( $rev );
return "$checkBox ($last) $pageLink . . $userLink $stxt $comment";
}
/**
* Fetch revision text link if it's available to all users
* @return string
*/
function getPageLink( $row, $titleObj, $ts, $target ) {
global $wgLang;
if( !$this->userCan( $row, Revision::DELETED_TEXT ) ) {
return '' .
$wgLang->timeanddate( $ts, true ) . '';
} else {
$link = $this->sk->linkKnown(
$titleObj,
$wgLang->timeanddate( $ts, true ),
array(),
array(
'target' => $target,
'timestamp' => $ts
)
);
if( $this->isDeleted( $row, Revision::DELETED_TEXT ) ) {
$link = '' . $link . '';
}
return $link;
}
}
function merge() {
global $wgOut;
# 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 ) {
$wgOut->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 ) {
$wgOut->addWikiMsg( 'mergehistory-fail' );
return false;
}
# Update the revisions
if( $this->mTimestamp ) {
$timewhere = "rev_timestamp <= {$this->mTimestamp}";
$timestampLimit = wfTimestamp( TS_MW, $this->mTimestamp );
} else {
$timewhere = "rev_timestamp <= {$maxtimestamp}";
$timestampLimit = wfTimestamp( TS_MW, $lasttimestamp );
}
# 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 = wfMsgForContent(
'mergehistory-comment',
$targetTitle->getPrefixedText(),
$destTitle->getPrefixedText(),
$this->mComment
);
} else {
$comment = wfMsgForContent(
'mergehistory-autocomment',
$targetTitle->getPrefixedText(),
$destTitle->getPrefixedText()
);
}
$mwRedir = MagicWord::get( 'redirect' );
$redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $destTitle->getPrefixedText() . "]]\n";
$redirectArticle = new Article( $targetTitle );
$redirectRevision = new Revision( array(
'page' => $this->mTargetID,
'comment' => $comment,
'text' => $redirectText ) );
$redirectRevision->insertOn( $dbw );
$redirectArticle->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_namespace' => $destTitle->getNamespace(),
'pl_title' => $destTitle->getDBkey() ),
__METHOD__
);
} else {
$targetTitle->invalidateCache(); // update histories
}
$destTitle->invalidateCache(); // update histories
# Check if this did anything
if( !$count ) {
$wgOut->addWikiMsg( 'mergehistory-fail' );
return false;
}
# Update our logs
$log = new LogPage( 'merge' );
$log->addEntry(
'merge', $targetTitle, $this->mComment,
array( $destTitle->getPrefixedText(), $timestampLimit )
);
$wgOut->addHTML(
wfMsgExt( 'mergehistory-success', array('parseinline'),
$targetTitle->getPrefixedText(), $destTitle->getPrefixedText(), $count ) );
wfRunHooks( 'ArticleMergeComplete', array( $targetTitle, $destTitle ) );
return true;
}
}
class MergeHistoryPager extends ReverseChronologicalPager {
public $mForm, $mConds;
function __construct( $form, $conds = array(), $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();
}
function getTitle() {
return SpecialPage::getTitleFor( 'Contributions' );
}
function getStartBody() {
wfProfileIn( __METHOD__ );
# 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->rev_user_text ) );
$batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->rev_user_text ) );
$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 );
wfProfileOut( __METHOD__ );
return '';
}
function formatRow( $row ) {
return $this->mForm->formatRevisionRow( $row );
}
function getQueryInfo() {
$conds = $this->mConds;
$conds['rev_page'] = $this->articleID;
$conds[] = 'page_id = rev_page';
$conds[] = "rev_timestamp < {$this->maxTimestamp}";
return array(
'tables' => array( 'revision', 'page' ),
'fields' => array(
'rev_minor_edit', 'rev_timestamp', 'rev_user', 'rev_user_text',
'rev_comment', 'rev_id', 'rev_page', 'rev_parent_id',
'rev_text_id', 'rev_len', 'rev_deleted'
),
'conds' => $conds
);
}
function getIndexField() {
return 'rev_timestamp';
}
}