Remove username from user events

docs/events.md

@@ -2,29 +2,6 @@
 
 Instead of using database tables, the Ditto server publishes Nostr events that describe its state. It then reads these events using Nostr filters.
 
-## Ditto Registration Request (kind 3036)
-
-Clients wishing to join a Ditto server should publish a kind `3036` event to the Ditto relay, mentioning the Ditto admin pubkey.
-
-The event should have the following tags:
-
-- `nip05` - desired NIP-05 username, including the domain (eg `alex@soapbox.pub`).
-- `p` - pubkey of the Ditto admin.
-
-Example:
-
-```json
-{
-  "kind": 3036,
-  "pubkey": "79c2cae114ea28a981e7559b4fe7854a473521a8d22a66bbab9fa248eb820ff6",
-  "content": "I want to be a part of this community.",
-  "tags": [
-    ["nip05", "alex@soapbox.pub"],
-    ["p", "4cfc6ceb07bbe2f5e75f746f3e6f0eda53973e0374cd6bdbce7a930e10437e06"]
-  ]
-}
-```
-
 ## Ditto User (kind 30361)
 
 The Ditto server publishes kind `30361` events to represent users. These events are parameterized replaceable events of kind `30361` where the `d` tag is a pubkey. These events are published by Ditto's internal admin keypair.
@@ -47,10 +24,9 @@ Example:
   "created_at": 1691568245,
   "tags": [
     ["d", "79c2cae114ea28a981e7559b4fe7854a473521a8d22a66bbab9fa248eb820ff6"],
-    ["name", "alex"],
     ["role", "user"],
     ["origin", "https://ditto.ngrok.app"],
-    ["alt", "@alex@ditto.ngrok.app's account was updated by the admins of ditto.ngrok.app"]
+    ["alt", "User's account was updated by the admins of ditto.ngrok.app"]
   ],
   "sig": "fc12db77b1c8f8aa86c73b617f0cd4af1e6ba244239eaf3164a292de6d39363f32d6b817ffff796ace7a103d75e1d8e6a0fb7f618819b32d81a953b4a75d7507"
 }

src/controllers/api/accounts.ts

@@ -39,23 +39,18 @@ const createAccountController: AppController = async (c) => {
     return c.json({ error: 'Bad request', schema: result.error }, 400);
   }
 
-  try {
-    await insertUser({
-      pubkey,
-      username: result.data.username,
-      inserted_at: new Date(),
-      admin: false,
-    });
+  await insertUser({
+    pubkey,
+    inserted_at: new Date(),
+    admin: false,
+  });
 
-    return c.json({
-      access_token: nip19.npubEncode(pubkey),
-      token_type: 'Bearer',
-      scope: 'read write follow push',
-      created_at: nostrNow(),
-    });
-  } catch (_e) {
-    return c.json({ error: 'Username already taken.' }, 422);
-  }
+  return c.json({
+    access_token: nip19.npubEncode(pubkey),
+    token_type: 'Bearer',
+    scope: 'read write follow push',
+    created_at: nostrNow(),
+  });
 };
 
 const verifyCredentialsController: AppController = async (c) => {

src/db/users.ts

@@ -8,7 +8,6 @@ const debug = Debug('ditto:users');
 
 interface User {
   pubkey: string;
-  username: string;
   inserted_at: Date;
   admin: boolean;
 }
@@ -21,11 +20,10 @@ function buildUserEvent(user: User) {
     kind: 30361,
     tags: [
       ['d', user.pubkey],
-      ['name', user.username],
       ['role', user.admin ? 'admin' : 'user'],
       ['origin', origin],
       // NIP-31: https://github.com/nostr-protocol/nips/blob/master/31.md
-      ['alt', `@${user.username}@${host}'s account was updated by the admins of ${host}`],
+      ['alt', `User's account was updated by the admins of ${host}`],
     ],
     content: '',
     created_at: Math.floor(user.inserted_at.getTime() / 1000),
@@ -35,9 +33,6 @@ function buildUserEvent(user: User) {
 /** Adds a user to the database. */
 async function insertUser(user: User) {
   debug('insertUser', JSON.stringify(user));
-  if (await findUser({ username: user.username })) {
-    throw new Error('User already exists');
-  }
   const event = await buildUserEvent(user);
   return pipeline.handleEvent(event, AbortSignal.timeout(1000));
 }
@@ -57,9 +52,6 @@ async function findUser(user: Partial<User>, signal?: AbortSignal): Promise<User
       case 'pubkey':
         filter['#d'] = [String(value)];
         break;
-      case 'username':
-        filter['#name'] = [String(value)];
-        break;
       case 'admin':
         filter['#role'] = [value ? 'admin' : 'user'];
         break;
@@ -71,7 +63,6 @@ async function findUser(user: Partial<User>, signal?: AbortSignal): Promise<User
   if (event) {
     return {
       pubkey: event.tags.find(([name]) => name === 'd')?.[1]!,
-      username: event.tags.find(([name]) => name === 'name')?.[1]!,
       inserted_at: new Date(event.created_at * 1000),
       admin: event.tags.find(([name]) => name === 'role')?.[1] === 'admin',
     };