referenceFetcher = $referenceFetcher; $this->revisionRepo = $revisionRepo; } public function updateEntityPageReferences(Entity $entity, string $oldLink) { $references = $this->referenceFetcher->getPageReferencesToEntity($entity); $newLink = $entity->getUrl(); /** @var Reference $reference */ foreach ($references as $reference) { /** @var Page $page */ $page = $reference->from; $this->updateReferencesWithinPage($page, $oldLink, $newLink); } } protected function updateReferencesWithinPage(Page $page, string $oldLink, string $newLink) { $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; } $html = '' . $html . ''; libxml_use_internal_errors(true); $doc = new DOMDocument(); $doc->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8')); $xPath = new DOMXPath($doc); $anchors = $xPath->query('//a[@href]'); /** @var \DOMElement $anchor */ foreach ($anchors as $anchor) { $link = $anchor->getAttribute('href'); $updated = str_ireplace($oldLink, $newLink, $link); $anchor->setAttribute('href', $updated); } $html = ''; $topElems = $doc->documentElement->childNodes->item(0)->childNodes; foreach ($topElems as $child) { $html .= $doc->saveHTML($child); } return $html; } }