From 17bbd40ee1d410eb5590587127c82c96cb30ae9c Mon Sep 17 00:00:00 2001
From: Luk Lu <luk.lu@faronear.org>
Date: Thu, 13 May 2021 13:03:24 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9B=EF=BC=8C=E4=BD=BF=E5=BE=97?=
 =?UTF-8?q?=E4=BC=A0=E5=85=A5=E5=8F=82=E6=95=B0=20key=20=E5=8F=AF=E4=BB=A5?=
 =?UTF-8?q?=20undefined?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 index.js | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index d4c9e35..b820906 100644
--- a/index.js
+++ b/index.js
@@ -5,15 +5,28 @@ const crypto = require('crypto')
 module.exports = {
   createToken: function (content, key) {
     // content 可以是数字，非空字符串或非空对象，不可以是数组。
+    // key 可以未定义，则默认设为空字符串，再转化为哈希。(jsonwebtoken 要求 key 必须有值)
     try {
-      return JsonWebToken.sign(content, crypto.createHash('sha256').update(key, 'utf8').digest('hex'))
+      return JsonWebToken.sign(
+        content,
+        crypto
+          .createHash('sha256')
+          .update(key || '', 'utf8')
+          .digest('hex')
+      )
     } catch (exp) {
       return null
     }
   },
   verifyToken: function (token, key) {
     try {
-      return JsonWebToken.verify(token, crypto.createHash('sha256').update(key, 'utf8').digest('hex'))
+      return JsonWebToken.verify(
+        token,
+        crypto
+          .createHash('sha256')
+          .update(key || '', 'utf8')
+          .digest('hex')
+      )
     } catch (exp) {
       return null
     }