Nostr: sign events with NIP-46

app/soapbox/api/hooks/index.ts

@@ -53,4 +53,3 @@ export { useHashtagStream } from './streaming/useHashtagStream';
 export { useListStream } from './streaming/useListStream';
 export { useGroupStream } from './streaming/useGroupStream';
 export { useRemoteStream } from './streaming/useRemoteStream';
-export { useNostrStream } from './streaming/useNostrStream';

app/soapbox/api/hooks/nostr/useSignerStream.ts

@@ -0,0 +1,57 @@
+import { relayInit, type Relay } from 'nostr-tools';
+import { useEffect } from 'react';
+
+import { useInstance } from 'soapbox/hooks';
+import { connectRequestSchema } from 'soapbox/schemas/nostr';
+import { jsonSchema } from 'soapbox/schemas/utils';
+
+function useSignerStream() {
+  const { nostr } = useInstance();
+
+  const relayUrl = nostr.get('relay') as string | undefined;
+  const pubkey = nostr.get('pubkey') as string | undefined;
+
+  useEffect(() => {
+    let relay: Relay | undefined;
+
+    if (relayUrl && pubkey && window.nostr?.nip04) {
+      relay = relayInit(relayUrl);
+      relay.connect();
+
+      relay
+        .sub([{ kinds: [24133], authors: [pubkey], limit: 0 }])
+        .on('event', async (event) => {
+          if (!relay || !window.nostr?.nip04) return;
+
+          const decrypted = await window.nostr.nip04.decrypt(pubkey, event.content);
+          const reqMsg = jsonSchema.pipe(connectRequestSchema).safeParse(decrypted);
+
+          if (!reqMsg.success) {
+            console.warn(decrypted);
+            console.warn(reqMsg.error);
+            return;
+          }
+
+          const signed = await window.nostr.signEvent(reqMsg.data.params[0]);
+          const respMsg = {
+            id: reqMsg.data.id,
+            result: signed,
+          };
+
+          const respEvent = await window.nostr.signEvent({
+            kind: 24133,
+            content: await window.nostr.nip04.encrypt(pubkey, JSON.stringify(respMsg)),
+            tags: [['p', pubkey]],
+            created_at: Math.floor(Date.now() / 1000),
+          });
+
+          relay.publish(respEvent);
+        });
+    }
+    return () => {
+      relay?.close();
+    };
+  }, [relayUrl, pubkey]);
+}
+
+export { useSignerStream };

app/soapbox/api/hooks/streaming/useNostrStream.ts

@@ -1,20 +0,0 @@
-import { useFeatures, useLoggedIn } from 'soapbox/hooks';
-
-import { useTimelineStream } from './useTimelineStream';
-
-function useNostrStream() {
-  const features = useFeatures();
-  const { isLoggedIn } = useLoggedIn();
-
-  return useTimelineStream(
-    'nostr',
-    'nostr',
-    null,
-    null,
-    {
-      enabled: isLoggedIn && features.nostrSign && Boolean(window.nostr),
-    },
-  );
-}
-
-export { useNostrStream };

app/soapbox/api/index.ts

@@ -66,6 +66,7 @@ export const baseClient = (accessToken?: string | null, baseURL: string = ''): A
     baseURL: isURL(BuildConfig.BACKEND_URL) ? BuildConfig.BACKEND_URL : baseURL,
     headers: Object.assign(accessToken ? {
       'Authorization': `Bearer ${accessToken}`,
+      'X-Nostr-Sign': 'true',
     } : {}),
     transformResponse: [maybeParseJSON],
   });