extractRequestParams();
$title = Title::newFromText( $params['page'] );
$prop = array_fill_keys( $params['prop'], true );
if ( !$title ) {
$this->dieWithError( [ 'apierror-invalidtitle', wfEscapeWikiText( $params['page'] ) ] );
}
$revision = $this->getValidRevision( $title, $params['oldid'] ?? null );
$threadItemSet = $this->parseRevision( $revision );
$result = [];
if ( isset( $prop['transcludedfrom'] ) ) {
$result['transcludedfrom'] = static::getTranscludedFrom( $threadItemSet );
}
if ( isset( $prop['threaditemshtml'] ) ) {
$result['threaditemshtml'] = static::getThreadItemsHtml( $threadItemSet );
}
$this->getResult()->addValue( null, $this->getModuleName(), $result );
}
/**
* Get transcluded=from data for a ContentThreadItemSet
*
* @param ContentThreadItemSet $threadItemSet
* @return array
*/
private static function getTranscludedFrom( ContentThreadItemSet $threadItemSet ): array {
$threadItems = $threadItemSet->getThreadItems();
$transcludedFrom = [];
foreach ( $threadItems as $threadItem ) {
$from = $threadItem->getTranscludedFrom();
// Key by IDs, legacy IDs, and names. This assumes that they can never conflict.
$transcludedFrom[ $threadItem->getId() ] = $from;
$legacyId = $threadItem->getLegacyId();
if ( $legacyId ) {
$transcludedFrom[ $legacyId ] = $from;
}
$name = $threadItem->getName();
if ( isset( $transcludedFrom[ $name ] ) && $transcludedFrom[ $name ] !== $from ) {
// Two or more items with the same name, transcluded from different pages.
// Consider them both to be transcluded from unknown source.
$transcludedFrom[ $name ] = true;
} else {
$transcludedFrom[ $name ] = $from;
}
}
return $transcludedFrom;
}
/**
* Get thread items HTML for a ContentThreadItemSet
*
* @param ContentThreadItemSet $threadItemSet
* @return array
*/
private static function getThreadItemsHtml( ContentThreadItemSet $threadItemSet ): array {
// This function assumes that the start of the ranges associated with
// HeadingItems are going to be at the start of their associated
// heading node (`^heading
`), i.e. in the position generated
// by getHeadlineNodeAndOffset.
$threads = $threadItemSet->getThreads();
if ( count( $threads ) > 0 && !$threads[0]->isPlaceholderHeading() ) {
$firstHeading = $threads[0];
$firstRange = $firstHeading->getRange();
$rootNode = $firstHeading->getRootNode();
// We need a placeholder if there's content between the beginning
// of rootnode and the start of firstHeading. An ancestor of the
// first heading with a previousSibling is evidence that there's
// probably content. If this is giving false positives we could
// perhaps use linearWalkBackwards and DomUtils::isContentNode.
$closest = CommentUtils::closestElementWithSibling( $firstRange->startContainer, 'previous' );
if ( $closest && !$rootNode->isSameNode( $closest ) ) {
$range = new ImmutableRange( $rootNode, 0, $rootNode, 0 );
$fakeHeading = new ContentHeadingItem( $range, null );
$fakeHeading->setRootNode( $rootNode );
$fakeHeading->setName( 'h-' );
$fakeHeading->setId( 'h-' );
array_unshift( $threads, $fakeHeading );
}
}
$output = array_map( static function ( ContentThreadItem $item ) {
return $item->jsonSerialize( true, static function ( array &$array, ContentThreadItem $item ) {
$array['html'] = $item->getHtml();
} );
}, $threads );
foreach ( $threads as $index => $item ) {
// need to loop over this to fix up empty sections, because we
// need context that's not available inside the array map
if ( $item instanceof ContentHeadingItem && count( $item->getReplies() ) === 0 ) {
// If there are no replies we want to include whatever's
// inside this section as "othercontent". We create a range
// that's between the end of this section's heading and the
// start of next section's heading. The main difficulty here
// is avoiding catching any of the heading's tags within the
// range.
$nextItem = $threads[ $index + 1 ] ?? false;
$startRange = $item->getRange();
if ( $item->isPlaceholderHeading() ) {
// Placeholders don't have any heading to avoid
$startNode = $startRange->startContainer;
$startOffset = $startRange->startOffset;
} else {
$startNode = CommentUtils::closestElementWithSibling( $startRange->endContainer, 'next' );
$startNode = $startNode->nextSibling;
$startOffset = 0;
}
if ( !$startNode ) {
$startNode = $startRange->endContainer;
$startOffset = $startRange->endOffset;
}
if ( $nextItem ) {
$nextStart = $nextItem->getRange()->startContainer;
$endContainer = CommentUtils::closestElementWithSibling( $nextStart, 'previous' );
$endContainer = $endContainer && $endContainer->previousSibling ?
$endContainer->previousSibling : $nextStart;
$endOffset = CommentUtils::childIndexOf( $endContainer );
if ( $endContainer instanceof Text ) {
// This probably means that there's a wrapping node
// e.g. foo\n==heading==\nbar
$endOffset += $endContainer->length;
} elseif ( $endContainer instanceof Element && $endContainer->tagName === 'section' ) {
// if we're in sections, make sure we're selecting the
// end of the previous section
$endOffset = $endContainer->childNodes->length;
} elseif ( $endContainer->parentNode ) {
$endContainer = $endContainer->parentNode;
}
$betweenRange = new ImmutableRange(
$startNode, $startOffset,
$endContainer ?: $nextStart, $endOffset
);
} else {
// This is the last section, so we want to go to the end of the rootnode
$betweenRange = new ImmutableRange(
$startNode, $startOffset,
$item->getRootNode(), $item->getRootNode()->childNodes->length
);
}
$fragment = $betweenRange->cloneContents();
CommentModifier::unwrapFragment( $fragment );
$output[$index]['othercontent'] = trim( DOMUtils::getFragmentInnerHTML( $fragment ) );
}
}
return $output;
}
/**
* @inheritDoc
*/
public function getAllowedParams() {
return [
'page' => [
ParamValidator::PARAM_REQUIRED => true,
ApiBase::PARAM_HELP_MSG => 'apihelp-visualeditoredit-param-page',
],
'oldid' => null,
'prop' => [
ParamValidator::PARAM_DEFAULT => 'transcludedfrom',
ParamValidator::PARAM_ISMULTI => true,
ParamValidator::PARAM_TYPE => [
'transcludedfrom',
'threaditemshtml'
],
ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
],
];
}
/**
* @inheritDoc
*/
public function needsToken() {
return false;
}
/**
* @inheritDoc
*/
public function isInternal() {
return true;
}
/**
* @inheritDoc
*/
public function isWriteMode() {
return false;
}
}