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from mitmproxy import ctx
from mitmproxy import tcp
from hexdump import hexdump
from mqtt import read_packets
import traceback
def log_hexdump(buf: bytes):
for line in hexdump(buf, result='return').split("\n"):
ctx.log.debug(line.strip())
def tcp_message(flow: tcp.TCPFlow):
message = flow.messages[-1]
ports = (flow.client_conn.address[1], flow.server_conn.address[1])
if 8883 not in ports:
return
try:
packets = read_packets(message.content)
except:
ctx.log.error(f'Failed to parse message.content')
ctx.log.error(traceback.format_exc().strip())
log_hexdump(message.content)
return
for packet in packets:
try:
packet.parse()
# This should be info(), but I use warn() to make it yellow
ctx.log.warn(packet.pprint())
except:
ctx.log.error(f'Failed to parse {packet.packet_type_human}')
ctx.log.error(traceback.format_exc().strip())
log_hexdump(packet.buf)
# This way we can save topics
# if mqtt_packet.packet_type == mqtt_packet.PUBLISH:
# with open("topics.txt", "a") as f:
# f.write(f"{mqtt_packet.topic_name}\n")
# elif mqtt_packet.packet_type == mqtt_packet.SUBSCRIBE:
# with open("topics.txt", "a") as f:
# f.write(f"{mqtt_packet.topic_filters}\n")
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