From d88761907a5bc82bea4d381b6b63d8ab3fba8e3d Mon Sep 17 00:00:00 2001
From: Alex Gleason <alex@alexgleason.me>
Date: Sat, 2 Sep 2023 18:08:09 -0500
Subject: [PATCH] verifySignature: set verifiedSymbol to false on failure, DRY
 return values

---
 event.test.ts | 7 ++++---
 event.ts      | 7 +++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/event.test.ts b/event.test.ts
index ca19e8c..8e937e0 100644
--- a/event.test.ts
+++ b/event.test.ts
@@ -7,6 +7,7 @@ import {
   verifySignature,
   getSignature,
   Kind,
+  verifiedSymbol,
 } from './event.ts'
 import { getPublicKey } from './keys.ts'
 
@@ -236,7 +237,7 @@ describe('Event', () => {
     it('should return false for an invalid event signature', () => {
       const privateKey = 'd217c1ff2f8a65c3e3a1740db3b9f58b8c848bb45e26d00ed4714e4a0f4ceecf'
 
-      const event = finishEvent(
+      const { [verifiedSymbol]: _, ...event } = finishEvent(
         {
           kind: Kind.Text,
           tags: [],
@@ -260,7 +261,7 @@ describe('Event', () => {
       const privateKey2 = '5b4a34f4e4b23c63ad55a35e3f84a3b53d96dbf266edf521a8358f71d19cbf67'
       const publicKey2 = getPublicKey(privateKey2)
 
-      const event = finishEvent(
+      const { [verifiedSymbol]: _, ...event } = finishEvent(
         {
           kind: Kind.Text,
           tags: [],
@@ -282,7 +283,7 @@ describe('Event', () => {
     it('should return false for an invalid event id', () => {
       const privateKey = 'd217c1ff2f8a65c3e3a1740db3b9f58b8c848bb45e26d00ed4714e4a0f4ceecf'
 
-      const event = finishEvent(
+      const { [verifiedSymbol]: _, ...event } = finishEvent(
         {
           kind: 1,
           tags: [],
diff --git a/event.ts b/event.ts
index 3fe6c62..6ddaf11 100644
--- a/event.ts
+++ b/event.ts
@@ -119,14 +119,13 @@ export function verifySignature<K extends number>(event: Event<K>): event is Ver
 
   const hash = getEventHash(event)
   if (hash !== event.id) {
-    return false
+    return (event[verifiedSymbol] = false)
   }
 
   try {
-    event[verifiedSymbol] = schnorr.verify(event.sig, hash, event.pubkey)
-    return event[verifiedSymbol]
+    return (event[verifiedSymbol] = schnorr.verify(event.sig, hash, event.pubkey))
   } catch (err) {
-    return false
+    return (event[verifiedSymbol] = false)
   }
 }