signing of events using web NIP-07 extension

TODO.md

@@ -40,8 +40,7 @@
 - ~~login with npub~~
 - ~~login with extension on web~~
 - ~~text color on light theme login screen YANA + input is dark~~
-
-- signEvent
+- ~~signEvent~~
 
 - STOP followers/zaps events from blocking the relay, when navigate away from that profile
 - get notifications in background for all accounts

lib/js/js_helper_mobile.dart

@@ -7,3 +7,7 @@ Future<String> getPublicKeyAsync() {
 Future<Event> signEventAsync(Event event) {
   return Future.value(null);
 }
+
+Future<String> signSchnorrAsync(String msg) {
+  return Future.value(null);
+}

lib/js/js_helper_web.dart

@@ -14,10 +14,19 @@ external dynamic getPublicKey();
 @JS()
 external dynamic signEvent(Event event);
 
+
+// This function will open new popup window for given URL.
+@JS()
+external dynamic signSchnorr(String msg);
+
 Future<String> getPublicKeyAsync() async {
   return await promiseToFuture(await getPublicKey());
 }
 
 Future<Event> signEventAsync(Event event) async {
   return await promiseToFuture(await signEvent(event));
+}
+
+Future<String> signSchnorrAsync(String msg) async {
+  return await promiseToFuture(await signSchnorr(msg));
 }

lib/nostr/nostr.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:bot_toast/bot_toast.dart';
 import 'package:flutter/foundation.dart';
 import 'package:yana/nostr/relay_pool.dart';
@@ -100,28 +102,33 @@ class Nostr {
   }
 
   Event? sendEvent(Event event) {
-    if (StringUtil.isBlank(_privateKey)) {
-      // TODO to show Notice
-      throw StateError("Private key is missing. Message can't be signed.");
-    }
-    signEvent(event);
-    var result = _pool.send(["EVENT", event.toJson()]);
-    if (result) {
-      return event;
-    }
+    // if (StringUtil.isBlank(_privateKey)) {
+    //   // TODO to show Notice
+    //   throw StateError("Private key is missing. Message can't be signed.");
+    // }
+    signEvent(event).then((signedEvent) {
+      var result = _pool.send(["EVENT", signedEvent.toJson()]);
+      if (result) {
+        return signedEvent;
+      }
+    });
     return null;
   }
 
-  void signEvent(Event event) async {
+  Future<Event> signEvent(Event event) async {
     if (StringUtil.isNotBlank(_privateKey)) {
       event.sign(_privateKey!);
+      return event;
     } else {
-      var signedEvent = await js.signEventAsync(event);
-      BotToast.showText(text: signedEvent.toString());
+      // Event signedEvent = await js.signEventAsync(event);
+      String sig = await js.signSchnorrAsync(event.id);
+      event.sig = sig;
+      Event signedEvent = event;
       if (kDebugMode) {
         BotToast.showText(text: signedEvent.toString());
         print("SIGNED EVENT: " + signedEvent.toString());
       }
+      return signedEvent;
     }
   }
 

web/script.js

@@ -6,8 +6,17 @@ async function getPublicKey() {
 }
 
 async function signEvent(event) {
+    console.log("SIGNING EVENT:"+event);
     if (window.nostr) {
         return await window.nostr.signEvent(event);
     }
     return "";
 }
+
+async function signSchnorr(msg) {
+    console.log("SIGNING MSG: "+msg);
+    if (window.nostr) {
+        return await window.nostr.signSchnorr(msg);
+    }
+    return "";
+}