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[KOB-52864] Fix proxy framing: strip hop-by-hop headers, recompute Content-Length #62

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Merged
chuong777 merged 1 commit into from
May 18, 2026
Merged

[KOB-52864] Fix proxy framing: strip hop-by-hop headers, recompute Content-Length #62

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15 changes: 9 additions & 6 deletions src/templates/python/proxy_server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,11 @@
# 15-minute timeout (matching Java)
SOCKET_TIMEOUT_SECONDS = 15 * 60

HOP_BY_HOP_HEADERS = frozenset({
'content-length', 'transfer-encoding', 'connection', 'keep-alive',
'proxy-connection', 'te', 'trailers', 'upgrade',
})


class ProxyHandler(BaseHTTPRequestHandler):
server_instance = None
Expand Down Expand Up @@ -174,16 +179,14 @@ def do_request(self, method, body=None):
response_body = response.content

try:
# Send response back with status code, headers and body
self.send_response(response.status_code)

# Strip Content-Length header since response_body may have been modified
# The HTTP server will calculate the correct length
response_headers = {key: val for key, val in response.headers.items()
if key.lower() != 'content-length'}
if key.lower() not in HOP_BY_HOP_HEADERS}
Comment on lines 182 to +183

self.send_response(response.status_code)
for key, val in response_headers.items():
self.send_header(key, val)
self.send_header('Content-Length', str(len(response_body)))
self.send_header('Connection', 'close')
self.end_headers()
self.wfile.write(response_body)
except Exception as send_error:
Expand Down
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