From 3a36a211af55b7832a56321e08ed8e6d62597e6a Mon Sep 17 00:00:00 2001
From: ekzyis <ramdip.singhgill@gmail.com>
Date: Wed, 16 Nov 2022 00:51:00 +0100
Subject: [PATCH] Remove tracking from twitter URLs

---
 api/resolvers/item.js |  3 ++-
 lib/url.js            | 11 +++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/api/resolvers/item.js b/api/resolvers/item.js
index 302f1441..e33a9bb3 100644
--- a/api/resolvers/item.js
+++ b/api/resolvers/item.js
@@ -1,5 +1,5 @@
 import { UserInputError, AuthenticationError } from 'apollo-server-micro'
-import { ensureProtocol } from '../../lib/url'
+import { ensureProtocol, removeTracking } from '../../lib/url'
 import serialize from './serial'
 import { decodeCursor, LIMIT, nextCursorEncoded } from '../../lib/cursor'
 import { getMetadata, metadataRuleSets } from 'page-metadata-parser'
@@ -518,6 +518,7 @@ export default {
     upsertLink: async (parent, args, { me, models }) => {
       const { id, ...data } = args
       data.url = ensureProtocol(data.url)
+      data.url = removeTracking(data.url)
 
       if (id) {
         return await updateItem(parent, { id, data }, { me, models })
diff --git a/lib/url.js b/lib/url.js
index 434ac50d..f889f88f 100644
--- a/lib/url.js
+++ b/lib/url.js
@@ -4,3 +4,14 @@ export function ensureProtocol (value) {
   }
   return value
 }
+
+export function removeTracking (value) {
+  const exprs = [
+    // twitter URLs
+    /^(?<url>https?:\/\/twitter\.com\/(?:#!\/)?(?<user>\w+)\/status(?:es)?\/(?<id>\d+))/,
+  ]
+  for (const expr of exprs) {
+    value = expr.exec(value)?.groups.url ?? value;
+  }
+  return value
+}