PyProxy - Very Simple TCP/UDP Proxy
About
PyProxy is a very simple TCP/UDP pure Python proxy. It can be easily extended for custom data handling logic.
Usage
>pyproxy.py -h
usage: pyproxy.py [-h] (--tcp | --udp) -s SRC -d DST [-q | -v]
TCP/UPD proxy.
optional arguments:
-h, --help show this help message and exit
--tcp TCP proxy
--udp UDP proxy
-s SRC, --src SRC Source IP and port, i.e.: 127.0.0.1:8000
-d DST, --dst DST Destination IP and port, i.e.: 127.0.0.1:8888
-q, --quiet Be quiet
-v, --verbose Be loud
Custom data handlers
Proxy uses two data handlers for incoming and outgoing data. By default both are set to identity function.
LOCAL_DATA_HANDLER = lambda x:x
REMOTE_DATA_HANDLER = lambda x:x
One can easily implement own rules. It might be very useful while testing network applications.
def custom_data_handler(data):
# code goes here
pass
LOCAL_DATA_HANDLER = custom_data_handler
REMOTE_DATA_HANDLER = lambda x:'constant_value'
License
Code is released under MIT license © Radoslaw '[rsc]' Matusiak.