From 23a4b19505a0232612ddf431e63ed20d04082d9e Mon Sep 17 00:00:00 2001
From: Tom Christie <tom@tomchristie.com>
Date: Fri, 13 Jul 2018 14:19:42 +0100
Subject: [PATCH] Raise ClientDisconnect if disconnected while reading request
 body

---
 starlette/request.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/starlette/request.py b/starlette/request.py
index 49d19510..4d7ae6aa 100644
--- a/starlette/request.py
+++ b/starlette/request.py
@@ -5,6 +5,10 @@ import json
 import typing
 
 
+class ClientDisconnect(Exception):
+    pass
+
+
 class Request(Mapping):
     def __init__(self, scope, receive=None):
         self._scope = scope
@@ -86,6 +90,8 @@ class Request(Mapping):
                 yield message.get("body", b"")
                 if not message.get("more_body", False):
                     break
+            elif message["type"] == "http.disconnect":
+                raise ClientDisconnect()
 
     async def body(self):
         if not hasattr(self, "_body"):