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disable h2c upgrades

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This commit is contained in:
Thomas Kriechbaumer 2016-12-16 11:28:59 +01:00
parent e769b1fa9a
commit 39a8d4dc22
2 changed files with 23 additions and 0 deletions
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2
mitmproxy/addons/__init__.py
View File

@ -12,6 +12,7 @@ from mitmproxy.addons import stickyauth
from mitmproxy.addons import stickycookie
from mitmproxy.addons import streambodies
from mitmproxy.addons import upstream_auth
from mitmproxy.addons import disable_h2c_upgrade
def default_addons():
@ -30,4 +31,5 @@ def default_addons():
serverplayback.ServerPlayback(),
clientplayback.ClientPlayback(),
upstream_auth.UpstreamAuth(),
disable_h2c_upgrade.DisableH2CleartextUpgrade(),
]

21
mitmproxy/addons/disable_h2c_upgrade.py Normal file
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@ -0,0 +1,21 @@
class DisableH2CleartextUpgrade:
"""
We currently only support HTTP/2 over a TLS connection. Some clients try
to upgrade a connection from HTTP/1.1 to h2c, so we need to remove those
headers to avoid protocol errors if one endpoints suddenly starts sending
HTTP/2 frames.
"""
def process_flow(self, f):
if f.request.headers.get('upgrade', '') == 'h2c':
del f.request.headers['upgrade']
if 'connection' in f.request.headers:
del f.request.headers['connection']
if 'http2-settings' in f.request.headers:
del f.request.headers['http2-settings']
# Handlers
def request(self, f):
self.process_flow(f)