wikimedia/mediawiki-extensions-Cite
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Don't keep pointers to nodes from embedded content

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Since the fragment they're subtrees of goes out of scope.

Follow up to 2f09cdb

Previous to that patch this wasn't an issue because we were creating a
whole document which is retained by the environment.

Fixes the warnings from,
"PHP Warning: DOMElement::getAttribute(): Couldn't fetch DOMElement"
https://logstash.wikimedia.org/app/kibana#/doc/logstash-*/logstash-2020.10.02/parsoid-tests?id=AXTqaLL12lgCwKx7fVYz&_g=h@a06543d

Tested on scandium with,
node bin/roundtrip-test.js --proxyURL http://scandium.eqiad.wmnet:80 --parsoidURL http://DOMAIN/w/rest.php --domain vi.wikipedia.org "Vua_Việt_Nam"

Change-Id: I74bc7de79b18054e19b77af25e978d3ab3a505e4
This commit is contained in:
Arlo Breault 2020-10-02 15:18:59 -04:00
parent f00325d6cc
commit 6bd0594f28
2 changed files with 25 additions and 2 deletions
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13
src/Parsoid/References.php
View file

@ -473,6 +473,16 @@ class References extends ExtensionTagHandler {
}
/**
* The fragment generated is scoped to the function so we can't keep
* pointers to subtrees of it when collecting references data.
* See https://bugs.php.net/bug.php?id=39593
*
* Removing the nodes would keep them alive but updating them in
* insertReferencesIntoDOM isn't helpful because we've already serialized
* the fragment.
*
* There's already a FIXME there to say this isn't supported.
*
* @param ParsoidExtensionAPI $extApi
* @param ReferencesData $refsData
* @param string $str
@ -482,7 +492,10 @@ class References extends ExtensionTagHandler {
ParsoidExtensionAPI $extApi, ReferencesData $refsData, string $str
): string {
$domFragment = $extApi->htmlToDom( $str );
$inEmbeddedContent = $refsData->inEmbeddedContent;
$refsData->inEmbeddedContent = true;
self::processRefs( $extApi, $refsData, $domFragment );
$refsData->inEmbeddedContent = $inEmbeddedContent;
return $extApi->domToHtml( $domFragment, true, true );
}

10
src/Parsoid/ReferencesData.php
View file

@ -19,12 +19,18 @@ class ReferencesData {
*/
private $refGroups;
/**
* @var bool
*/
public $inEmbeddedContent;
/**
* ReferencesData constructor.
*/
public function __construct() {
$this->index = 0;
$this->refGroups = [];
$this->inEmbeddedContent = false;
}
/**
@ -72,7 +78,9 @@ class ReferencesData {
$c = $extApi->getContentDOM( $ref->contentId )->firstChild;
$ref->cachedHtml = $extApi->domToHtml( $c, true, false );
}
if ( !$this->inEmbeddedContent ) {
$ref->nodes[] = $linkBack;
}
} else {
// The ids produced Cite.php have some particulars:
// Simple refs get 'cite_ref-' + index
@ -107,9 +115,11 @@ class ReferencesData {
$group->refs[] = $ref;
if ( $hasRefName ) {
$group->indexByName[$refName] = $ref;
if ( !$this->inEmbeddedContent ) {
$ref->nodes[] = $linkBack;
}
}
}
if ( !$skipLinkback ) {
$ref->linkbacks[] = $ref->key . '-' . count( $ref->linkbacks );