diff options
| -rw-r--r-- | libmproxy/protocol/http.py | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/libmproxy/protocol/http.py b/libmproxy/protocol/http.py index f0f4ac24..7f57d17c 100644 --- a/libmproxy/protocol/http.py +++ b/libmproxy/protocol/http.py @@ -7,6 +7,7 @@ from netlib import odict from netlib.tcp import NetLibError, Address from netlib.http.http1 import HTTP1Protocol from netlib.http.http2 import HTTP2Protocol +from netlib.http.http2.frame import WindowUpdateFrame from .. import utils from ..exceptions import InvalidCredentials, HttpException, ProtocolException @@ -187,8 +188,15 @@ class Http2Layer(_HttpLayer): layer = HttpLayer(self, self.mode) layer() - def handle_unexpected_frame(self, frm): - self.log("Unexpected HTTP2 Frame: %s" % frm.human_readable(), "info") + def handle_unexpected_frame(self, frame): + if isinstance(frame, WindowUpdateFrame): + # Clients are sending WindowUpdate frames depending on their flow control algorithm. + # Since we cannot predict these frames, and we do not need to respond to them, + # simply accept them, and hide them from the log. + # Ideally we should keep track of our own flow control window and + # stall transmission if the outgoing flow control buffer is full. + return + self.log("Unexpected HTTP2 Frame: %s" % frame.human_readable(), "info") class ConnectServerConnection(object): |