Add profile attachments (and a way of updating followers with new profile info)

account.json.example

@@ -2,5 +2,12 @@
   "username": "bookmarks",
   "avatar": "https://cdn.glitch.global/8eaf209c-2fa9-4353-9b99-e8d8f3a5f8d4/postmarks-logo-white-small.png?v=1693610556689",
   "displayName": "Postmarks",
-  "description": "An ActivityPub bookmarking and sharing site built with Postmarks"
+  "description": "An ActivityPub bookmarking and sharing site built with Postmarks",
+  "attachment": [
+    {
+      "type": "PropertyValue",
+      "name": "Source Code",
+      "value": "<a href='https://github.com/ckolderup/postmarks' target='_blank' rel='nofollow noopener noreferrer me'>https://github.com/ckolderup/postmarks</a>"
+    }
+  ]
 }

server.js

@@ -10,6 +10,7 @@ import * as bookmarksDb from './src/bookmarks-db.js';
 import * as apDb from './src/activity-pub-db.js';
 
 import routes from './src/routes/index.js';
+import { updateProfile } from './src/activitypub.js';
 
 dotenv.config();
 
@@ -132,3 +133,6 @@ app.use('/nodeinfo/2.1', routes.nodeinfo);
 app.use('/opensearch.xml', routes.opensearch);
 
 app.listen(PORT, () => console.log(`App listening on port ${PORT}`));
+app.on('listening', function () {
+  // updateProfile(apDb, account, domain);
+});

src/activity-pub-db.js

@@ -15,7 +15,7 @@ import { account, domain, actorInfo } from './util.js';
 const dbFile = './.data/activitypub.db';
 let db;
 
-function actorJson(pubkey) {
+export function actorJson(pubkey) {
   return {
     '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'],
 
@@ -33,6 +33,7 @@ function actorJson(pubkey) {
     outbox: `https://${domain}/u/${account}/outbox`,
     followers: `https://${domain}/u/${account}/followers`,
     following: `https://${domain}/u/${account}/following`,
+    attachment: actorInfo.attachment,
 
     publicKey: {
       id: `https://${domain}/u/${account}#main-key`,

src/activitypub.js

@@ -267,6 +267,35 @@ export async function broadcastMessage(bookmark, action, db, account, domain) {
   }
 }
 
+export async function updateProfile(db, account, domain) {
+  if (actorInfo.disabled) {
+    return; // no fediverse setup
+  }
+  const publicKey = await db.getPublicKey();
+  const actorRecord = db.actorJson(publicKey);
+
+  const guidUpdate = crypto.randomBytes(16).toString('hex');
+  const updateMessage = {
+    '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'],
+    type: 'Update',
+    id: `https://${domain}/m/${guidUpdate}`,
+    actor: `https://${domain}/u/${account}`,
+    to: ['https://www.w3.org/ns/activitystreams#Public'],
+    object: actorRecord,
+  };
+
+  db.insertMessage(guidUpdate, null, JSON.stringify(updateMessage));
+  const result = await db.getFollowers();
+  const followers = JSON.parse(result);
+  // eslint-disable-next-line no-restricted-syntax
+  for (const follower of followers) {
+    const myURL = new URL(follower);
+    const targetDomain = myURL.host;
+    const inbox = `https://${targetDomain}/inbox`;
+    signAndSend(updateMessage, account, domain, db, targetDomain, inbox);
+  }
+}
+
 export function synthesizeActivity(note) {
   return {
     // Fake activity URI adds a "a-" prefix to the Note/message guid

src/pages/about.hbs

@@ -11,9 +11,21 @@
 {{else}}
   <div class="bio">
     <img class="avatar" src="{{actorInfo.avatar}}" />
-    <p>
-      {{actorInfo.description}}
-    </p>
+    <div>
+	    <p>
+	      {{{actorInfo.description}}}
+	    </p>
+	    <table class="attachments">
+	      <tbody>
+	        {{#each actorInfo.attachment}}
+	        <tr>
+	          <td>{{name}}: </td>
+              <td>{{{value}}}</td>
+            </tr>
+            {{/each}}
+          </tbody>
+        </table>
+    </div>
   </div>
   <h2>
     Follow on the Fediverse