feature: Allow import Netscape HTML format (#163)

* [Feature request] Netscape HTML format import/export #96
added the possibility to add exported bookmarks via the webUI for ease of use

* [Feature request] Netscape HTML format import/export #96
updated the documentation

* Extract the parser into its own file and reuse the existing bookmark upload logic

---------

Co-authored-by: kamtschatka <simon.schatka@gmx.at>
Co-authored-by: MohamedBassem <me@mbassem.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/apps/web/lib/netscapeBookmarkParser.ts b/apps/web/lib/netscapeBookmarkParser.ts
new file mode 100644
index 00000000..ac5f3ec2
--- /dev/null
+++ b/apps/web/lib/netscapeBookmarkParser.ts
@@ -0,0 +1,20 @@
+function extractUrls(html: string): string[] {
+  const regex = /<a\s+(?:[^>]*?\s+)?href="(http[^"]*)"/gi;
+  let match;
+  const urls = [];
+
+  while ((match = regex.exec(html)) !== null) {
+    urls.push(match[1]);
+  }
+
+  return urls;
+}
+
+export async function parseNetscapeBookmarkFile(file: File) {
+  const textContent = await file.text();
+  if (!textContent.startsWith("<!DOCTYPE NETSCAPE-Bookmark-file-1>")) {
+    throw Error("The uploaded html file does not seem to be a bookmark file");
+  }
+
+  return extractUrls(textContent).map((url) => new URL(url));
+}