mitmproxy/examples/addons/websocket-simple.py

22 lines
651 B
Python

"""Process individual messages from a WebSocket connection."""
import re
from mitmproxy import ctx
def websocket_message(flow):
# get the latest message
message = flow.messages[-1]
# was the message sent from the client or server?
if message.from_client:
ctx.log.info(f"Client sent a message: {message.content}")
else:
ctx.log.info(f"Server sent a message: {message.content}")
# manipulate the message content
message.content = re.sub(r'^Hello', 'HAPPY', message.content)
if 'FOOBAR' in message.content:
# kill the message and not send it to the other endpoint
message.content = ""