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BookStack/app/References/ReferenceUpdater.php

130 lines
4.3 KiB
PHP

<?php
namespace BookStack\References;
use BookStack\Entities\Models\Book;
use BookStack\Entities\Models\Entity;
use BookStack\Entities\Models\HasHtmlDescription;
use BookStack\Entities\Models\Page;
use BookStack\Entities\Repos\RevisionRepo;
use BookStack\Util\HtmlDocument;
class ReferenceUpdater
{
public function __construct(
protected ReferenceFetcher $referenceFetcher,
protected RevisionRepo $revisionRepo,
) {
}
public function updateEntityReferences(Entity $entity, string $oldLink): void
{
$references = $this->getReferencesToUpdate($entity);
$newLink = $entity->getUrl();
foreach ($references as $reference) {
/** @var Entity $entity */
$entity = $reference->from;
$this->updateReferencesWithinEntity($entity, $oldLink, $newLink);
}
}
/**
* @return Reference[]
*/
protected function getReferencesToUpdate(Entity $entity): array
{
/** @var Reference[] $references */
$references = $this->referenceFetcher->getReferencesToEntity($entity)->values()->all();
if ($entity instanceof Book) {
$pages = $entity->pages()->get(['id']);
$chapters = $entity->chapters()->get(['id']);
$children = $pages->concat($chapters);
foreach ($children as $bookChild) {
/** @var Reference[] $childRefs */
$childRefs = $this->referenceFetcher->getReferencesToEntity($bookChild)->values()->all();
array_push($references, ...$childRefs);
}
}
$deduped = [];
foreach ($references as $reference) {
$key = $reference->from_id . ':' . $reference->from_type;
$deduped[$key] = $reference;
}
return array_values($deduped);
}
protected function updateReferencesWithinEntity(Entity $entity, string $oldLink, string $newLink): void
{
if ($entity instanceof Page) {
$this->updateReferencesWithinPage($entity, $oldLink, $newLink);
return;
}
if (in_array(HasHtmlDescription::class, class_uses($entity))) {
$this->updateReferencesWithinDescription($entity, $oldLink, $newLink);
}
}
protected function updateReferencesWithinDescription(Entity $entity, string $oldLink, string $newLink): void
{
/** @var HasHtmlDescription&Entity $entity */
$entity = (clone $entity)->refresh();
$html = $this->updateLinksInHtml($entity->description_html ?: '', $oldLink, $newLink);
$entity->description_html = $html;
$entity->save();
}
protected function updateReferencesWithinPage(Page $page, string $oldLink, string $newLink): void
{
$page = (clone $page)->refresh();
$html = $this->updateLinksInHtml($page->html, $oldLink, $newLink);
$markdown = $this->updateLinksInMarkdown($page->markdown, $oldLink, $newLink);
$page->html = $html;
$page->markdown = $markdown;
$page->revision_count++;
$page->save();
$summary = trans('entities.pages_references_update_revision');
$this->revisionRepo->storeNewForPage($page, $summary);
}
protected function updateLinksInMarkdown(string $markdown, string $oldLink, string $newLink): string
{
if (empty($markdown)) {
return $markdown;
}
$commonLinkRegex = '/(\[.*?\]\()' . preg_quote($oldLink, '/') . '(.*?\))/i';
$markdown = preg_replace($commonLinkRegex, '$1' . $newLink . '$2', $markdown);
$referenceLinkRegex = '/(\[.*?\]:\s?)' . preg_quote($oldLink, '/') . '(.*?)($|\s)/i';
$markdown = preg_replace($referenceLinkRegex, '$1' . $newLink . '$2$3', $markdown);
return $markdown;
}
protected function updateLinksInHtml(string $html, string $oldLink, string $newLink): string
{
if (empty($html)) {
return $html;
}
$doc = new HtmlDocument($html);
$anchors = $doc->queryXPath('//a[@href]');
/** @var \DOMElement $anchor */
foreach ($anchors as $anchor) {
$link = $anchor->getAttribute('href');
$updated = str_ireplace($oldLink, $newLink, $link);
$anchor->setAttribute('href', $updated);
}
return $doc->getBodyInnerHtml();
}
}