mitmproxy/mitmproxy/io_compat.py
2016-10-27 20:33:30 -07:00

142 lines
3.9 KiB
Python

"""
This module handles the import of mitmproxy flows generated by old versions.
"""
from typing import Any
from mitmproxy import version
from mitmproxy.utils import strutils
def convert_011_012(data):
data[b"version"] = (0, 12)
return data
def convert_012_013(data):
data[b"version"] = (0, 13)
return data
def convert_013_014(data):
data[b"request"][b"first_line_format"] = data[b"request"].pop(b"form_in")
data[b"request"][b"http_version"] = b"HTTP/" + ".".join(
str(x) for x in data[b"request"].pop(b"httpversion")).encode()
data[b"response"][b"http_version"] = b"HTTP/" + ".".join(
str(x) for x in data[b"response"].pop(b"httpversion")).encode()
data[b"response"][b"status_code"] = data[b"response"].pop(b"code")
data[b"response"][b"body"] = data[b"response"].pop(b"content")
data[b"server_conn"].pop(b"state")
data[b"server_conn"][b"via"] = None
data[b"version"] = (0, 14)
return data
def convert_014_015(data):
data[b"version"] = (0, 15)
return data
def convert_015_016(data):
for m in (b"request", b"response"):
if b"body" in data[m]:
data[m][b"content"] = data[m].pop(b"body")
if b"msg" in data[b"response"]:
data[b"response"][b"reason"] = data[b"response"].pop(b"msg")
data[b"request"].pop(b"form_out", None)
data[b"version"] = (0, 16)
return data
def convert_016_017(data):
data[b"server_conn"][b"peer_address"] = None
data[b"version"] = (0, 17)
return data
def convert_017_018(data):
# convert_unicode needs to be called for every dual release and the first py3-only release
data = convert_unicode(data)
data["server_conn"]["ip_address"] = data["server_conn"].pop("peer_address")
data["marked"] = False
data["version"] = (0, 18)
return data
def convert_018_019(data):
data["version"] = (0, 19)
data["client_conn"]["sni"] = None
data["client_conn"]["cipher_name"] = None
data["client_conn"]["tls_version"] = None
data["metadata"] = dict()
return data
def _convert_dict_keys(o: Any) -> Any:
if isinstance(o, dict):
return {strutils.native(k): _convert_dict_keys(v) for k, v in o.items()}
else:
return o
def _convert_dict_vals(o: dict, values_to_convert: dict) -> dict:
for k, v in values_to_convert.items():
if not o or k not in o:
continue
if v is True:
o[k] = strutils.native(o[k])
else:
_convert_dict_vals(o[k], v)
return o
def convert_unicode(data: dict) -> dict:
"""
This method converts between Python 3 and Python 2 dumpfiles.
"""
data = _convert_dict_keys(data)
data = _convert_dict_vals(
data, {
"type": True,
"id": True,
"request": {
"first_line_format": True
},
"error": {
"msg": True
}
}
)
return data
converters = {
(0, 11): convert_011_012,
(0, 12): convert_012_013,
(0, 13): convert_013_014,
(0, 14): convert_014_015,
(0, 15): convert_015_016,
(0, 16): convert_016_017,
(0, 17): convert_017_018,
(0, 18): convert_018_019,
}
def migrate_flow(flow_data):
while True:
flow_version = tuple(flow_data.get(b"version", flow_data.get("version")))
if flow_version[:2] == version.IVERSION[:2]:
break
elif flow_version[:2] in converters:
flow_data = converters[flow_version[:2]](flow_data)
else:
v = ".".join(str(i) for i in flow_version)
raise ValueError(
"{} cannot read files serialized with version {}.".format(version.MITMPROXY, v)
)
# TODO: This should finally be moved in the converter for the first py3-only release.
# It's here so that a py2 0.18 dump can be read by py3 0.18 and vice versa.
flow_data = convert_unicode(flow_data)
return flow_data