decouple header

app.py

@@ -9,6 +9,9 @@ from tzlocal import get_localzone
 
 TIMEOUT = None
 API = os.getenv("api_bili")
+HEADER = {
+    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36"
+}
 
 
 def timestamp(naive_time: datetime = None, target_tz=ZoneInfo("Asia/Shanghai")):
@@ -53,9 +56,7 @@ def extract_fst_url(text):
 def get_real_url(short_url):
     return requests.get(
         short_url,
-        headers={
-            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36"
-        },
+        headers=HEADER,
         allow_redirects=True,
         timeout=TIMEOUT,
     ).url.split("/?")[0]