+
+ 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 = '<body>' . $html . '</body>';
+ 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;
+ }
projects / bookstack / commitdiff