fix proxy

stream.py

@@ -85,8 +85,7 @@ def get_proxy_url(proxy, current, path):
     presp = requests.post(proxy_server, json=data)
     return presp.text
 
-def rewrite(current, provider):
-    proxy = proxies.get(provider)
+def rewrite(current, provider, proxy):
     resp = requests.head(current, proxies=proxy.req)
     ctype = resp.headers.get("Content-Type")
     if ctype is None:
@@ -168,7 +167,6 @@ class MainHandler(tornado.web.RequestHandler):
             if provider == "youtube":
                 path = path.strip("/")
             src = providers[provider] + self.request.path
-            proxy = None
             proxy_list = None
             proxy_list_orig = proxies.get(provider)
             if isinstance(proxy_list_orig, list):
@@ -200,7 +198,7 @@ class MainHandler(tornado.web.RequestHandler):
             if write:
                 self.write("Stream not found.")
         else:
-            data = rewrite(upstream, provider)
+            data = rewrite(upstream, provider, proxy)
             if data is None:
                 self.redirect(upstream, status=303)
             else: