From 9dfd7a003436593de3418b659b915ef0d5078c0b Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Mon, 30 Dec 2024 23:20:22 -0800
Subject: nostr registration

---
 lib/register.ts | 15 +++++++++------
 routes/users.ts | 22 +++++++++++++++++++---
 2 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/lib/register.ts b/lib/register.ts
index 36b9d443..91c140b0 100644
--- a/lib/register.ts
+++ b/lib/register.ts
@@ -12,7 +12,7 @@ import { v4 } from "uuid";
 
 const valid = /^[\p{L}\p{N}]{2,24}$/u;
 export default async (user, ip) => {
-  let { password, username } = user;
+  let { password, pubkey, username } = user;
   l("registering", username);
 
   if (!username) fail("Username required");
@@ -48,17 +48,20 @@ export default async (user, ip) => {
     }
   }
 
-  const sk = randomBytes(32);
-  const pubkey = getPublicKey(sk);
-  user.pubkey = pubkey;
-  user.nsec = nip49encrypt(sk, password);
   user.currencies = [...new Set([user.currency, "CAD", "USD"])];
   user.fiat = false;
   user.otpsecret = authenticator.generateSecret();
   user.migrated = true;
   user.locktime = 300;
 
-  user.npub = nip19.npubEncode(user.pubkey);
+  if (!pubkey) {
+    const sk = randomBytes(32);
+    const pubkey = getPublicKey(sk);
+    user.pubkey = pubkey;
+    user.nsec = nip49encrypt(sk, password);
+  }
+
+  user.npub = nip19.npubEncode(pubkey);
   user.nwc = bytesToHex(randomBytes(32));
 
   const account = JSON.stringify({
diff --git a/routes/users.ts b/routes/users.ts
index 151bd534..3b35a35c 100644
--- a/routes/users.ts
+++ b/routes/users.ts
@@ -367,17 +367,32 @@ export default {
   async nostrLogin(req, res) {
     try {
       const { event, id, twofa } = req.body;
+      const ip = req.headers["cf-connecting-ip"];
       const challenge = await g(`challenge:${id}`);
+      const { pubkey: key } = event;
       if (!challenge) fail("Invalid or expired login challenge");
 
       if (!verifyEvent(event) || event.content !== id)
         fail("Invalid signature or challenge mismatch.");
 
-      let user = await getUser(event.pubkey);
-      if (!user) fail("Pubkey not found");
+      let user = await getUser(key);
+      if (!user) {
+        const k0 = await getProfile(key);
+        let username = k0?.name;
+        const exists = await getUser(username);
+        if (exists) username = key.substr(0, 24);
+
+        user = {
+          username,
+          password: v4(),
+          pubkey: key,
+        };
+
+        user = await register(user, ip);
+      }
 
       const { username } = user;
-      l("logging in", username, req.headers["cf-connecting-ip"]);
+      l("logging in", username, ip);
 
       if (
         user.twofa &&
@@ -393,6 +408,7 @@ export default {
       user = pick(user, whitelist);
       res.send({ user, token });
     } catch (e) {
+      console.log(e);
       err("login error", e.message, req.socket.remoteAddress);
       res.code(401).send({});
     }
-- 
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