✨ ding: send by webhook

close: #189

Feature: 钉钉添加 `send_by_webhook` 方法 #189

packages/nonebot-adapter-ding/nonebot/adapters/ding/utils.py

@@ -1,3 +1,15 @@
+import hmac
 from nonebot.utils import logger_wrapper
-
+import hashlib
+import base64
 log = logger_wrapper("DING")
+
+
+def calc_hmac_base64(timestamp: str, secret: str):
+    secret_enc = secret.encode('utf-8')
+    string_to_sign = '{}\n{}'.format(timestamp, secret)
+    string_to_sign_enc = string_to_sign.encode('utf-8')
+    hmac_code = hmac.new(secret_enc,
+                         string_to_sign_enc,
+                         digestmod=hashlib.sha256).digest()
+    return base64.b64encode(hmac_code)