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from __future__ import absolute_import, print_function, division
import traceback
import netlib.exceptions
from mitmproxy import controller
from mitmproxy import exceptions
from mitmproxy import models
from netlib.http import http1
from netlib import basethread
# TODO: Doesn't really belong into mitmproxy.protocol...
class RequestReplayThread(basethread.BaseThread):
name = "RequestReplayThread"
def __init__(self, config, flow, event_queue, should_exit):
"""
event_queue can be a queue or None, if no scripthooks should be
processed.
"""
self.config, self.flow = config, flow
if event_queue:
self.channel = controller.Channel(event_queue, should_exit)
else:
self.channel = None
super(RequestReplayThread, self).__init__(
"RequestReplay (%s)" % flow.request.url
)
def run(self):
r = self.flow.request
first_line_format_backup = r.first_line_format
try:
self.flow.response = None
# If we have a channel, run script hooks.
if self.channel:
request_reply = self.channel.ask("request", self.flow)
if isinstance(request_reply, models.HTTPResponse):
self.flow.response = request_reply
if not self.flow.response:
# In all modes, we directly connect to the server displayed
if self.config.mode == "upstream":
server_address = self.config.upstream_server.address
server = models.ServerConnection(server_address, (self.config.host, 0))
server.connect()
if r.scheme == "https":
connect_request = models.make_connect_request((r.host, r.port))
server.wfile.write(http1.assemble_request(connect_request))
server.wfile.flush()
resp = http1.read_response(
server.rfile,
connect_request,
body_size_limit=self.config.body_size_limit
)
if resp.status_code != 200:
raise exceptions.ReplayException("Upstream server refuses CONNECT request")
server.establish_ssl(
self.config.clientcerts,
sni=self.flow.server_conn.sni
)
r.first_line_format = "relative"
else:
r.first_line_format = "absolute"
else:
server_address = (r.host, r.port)
server = models.ServerConnection(server_address, (self.config.host, 0))
server.connect()
if r.scheme == "https":
server.establish_ssl(
self.config.clientcerts,
sni=self.flow.server_conn.sni
)
r.first_line_format = "relative"
server.wfile.write(http1.assemble_request(r))
server.wfile.flush()
self.flow.server_conn = server
self.flow.response = models.HTTPResponse.wrap(http1.read_response(
server.rfile,
r,
body_size_limit=self.config.body_size_limit
))
if self.channel:
response_reply = self.channel.ask("response", self.flow)
if response_reply == exceptions.Kill:
raise exceptions.Kill()
except (exceptions.ReplayException, netlib.exceptions.NetlibException) as e:
self.flow.error = models.Error(str(e))
if self.channel:
self.channel.ask("error", self.flow)
except exceptions.Kill:
# Kill should only be raised if there's a channel in the
# first place.
from ..proxy.root_context import Log
self.channel.tell("log", Log("Connection killed", "info"))
except Exception:
from ..proxy.root_context import Log
self.channel.tell("log", Log(traceback.format_exc(), "error"))
finally:
r.first_line_format = first_line_format_backup
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