From 54db92a082da7b5ceaffd4cad97d5f9a5bc91be4 Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Sun, 31 Oct 2021 19:13:22 -0700
Subject: [PATCH] Add unroll worker

---
 README.md                    |  8 ++++++++
 package.json                 |  3 ++-
 unroll/index.js              | 11 +++++++++++
 unroll/package.json          | 20 ++++++++++++++++++++
 unroll/wrangler.toml.example |  5 +++++
 5 files changed, 46 insertions(+), 1 deletion(-)
 create mode 100644 unroll/index.js
 create mode 100644 unroll/package.json
 create mode 100644 unroll/wrangler.toml.example

diff --git a/README.md b/README.md
index 475cc0b..a912d54 100644
--- a/README.md
+++ b/README.md
@@ -191,3 +191,11 @@ Reverse proxy which injects a basic CSS style sheet.
 ### Usage
 
 Same as `proxy`.
+
+## unroll
+
+Redirects a tweet thread to the corresponding Threadreader thread.
+
+### Usage
+
+Same as `proxy`, but only works on tweet URLs.
diff --git a/package.json b/package.json
index 117ae00..b19e028 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,7 @@
     "qr",
     "ip",
     "uuid",
-    "style"
+    "style",
+    "unroll"
   ]
 }
diff --git a/unroll/index.js b/unroll/index.js
new file mode 100644
index 0000000..e1a9a7f
--- /dev/null
+++ b/unroll/index.js
@@ -0,0 +1,11 @@
+async function handleRequest(request) {
+  const url = new URL(request.url);
+  const queryString = decodeURIComponent(url.search.substring(1));
+  const tweet = queryString.split('/').pop();
+
+  return Response.redirect(`https://threadreaderapp.com/thread/${tweet}`);
+}
+
+addEventListener('fetch', event => {
+  event.respondWith(handleRequest(event.request));
+})
diff --git a/unroll/package.json b/unroll/package.json
new file mode 100644
index 0000000..a4d07bb
--- /dev/null
+++ b/unroll/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "unroll",
+  "version": "0.1.0",
+  "description": "Redirects a tweet thread to the corresponding Threadreader thread.",
+  "private": true,
+  "main": "index.js",
+  "scripts": {
+    "login": "wrangler login",
+    "dev": "wrangler dev",
+    "preview": "wrangler preview",
+    "build": "wrangler build",
+    "publish": "wrangler publish"
+  },
+  "author": "Ardis Lu",
+  "license": "ISC",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/ardislu/cloudflare-workers.git"
+  }
+}
diff --git a/unroll/wrangler.toml.example b/unroll/wrangler.toml.example
new file mode 100644
index 0000000..46e5246
--- /dev/null
+++ b/unroll/wrangler.toml.example
@@ -0,0 +1,5 @@
+name = 'unroll'
+type = 'javascript'
+account_id = ''
+workers_dev = true
+route = 'example.com/*'
-- 
2.47.3