From fdbb3b76cf8cd7caaa644dc31e48521096ed5349 Mon Sep 17 00:00:00 2001
From: Thomas Kriechbaumer <thomas@kriechbaumer.name>
Date: Mon, 8 Jun 2015 16:54:19 +0200
Subject: http2: add warning if raw data looks like HTTP/1

---
 netlib/http2/frame.py | 4 ++++
 netlib/tcp.py         | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'netlib')

diff --git a/netlib/http2/frame.py b/netlib/http2/frame.py
index ac9b8d50..4a305d82 100644
--- a/netlib/http2/frame.py
+++ b/netlib/http2/frame.py
@@ -1,3 +1,4 @@
+import sys
 import struct
 from functools import reduce
 from hpack.hpack import Encoder, Decoder
@@ -79,6 +80,9 @@ class Frame(object):
         flags = fields[3]
         stream_id = fields[4]
 
+        if raw_header[:4] == b'HTTP':  # pragma no cover
+            print >> sys.stderr, "WARNING: This looks like an HTTP/1 connection!"
+
         self._check_frame_size(length, state)
 
         payload = fp.safe_read(length)
diff --git a/netlib/tcp.py b/netlib/tcp.py
index 09c43ffc..62545244 100644
--- a/netlib/tcp.py
+++ b/netlib/tcp.py
@@ -501,7 +501,7 @@ class TCPClient(_Connection):
     def get_alpn_proto_negotiated(self):
         if OpenSSL._util.lib.Cryptography_HAS_ALPN:
             return self.connection.get_alpn_proto_negotiated()
-        else:
+        else: # pragma no cover
             return None
 
 
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