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from __future__ import (absolute_import, print_function, division)
import collections
import os
import re
from OpenSSL import SSL
from netlib import certutils, tcp
from netlib.http import authentication
from netlib.tcp import Address, sslversion_choices
from .. import utils, platform
CONF_BASENAME = "mitmproxy"
CA_DIR = "~/.mitmproxy"
# We manually need to specify this, otherwise OpenSSL may select a non-HTTP2 cipher by default.
# https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=apache-2.2.15&openssl=1.0.2&hsts=yes&profile=old
DEFAULT_CLIENT_CIPHERS = "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA"
class HostMatcher(object):
def __init__(self, patterns=tuple()):
self.patterns = list(patterns)
self.regexes = [re.compile(p, re.IGNORECASE) for p in self.patterns]
def __call__(self, address):
if not address:
return False
address = tcp.Address.wrap(address)
host = "%s:%s" % (address.host, address.port)
if any(rex.search(host) for rex in self.regexes):
return True
else:
return False
def __nonzero__(self):
return bool(self.patterns)
ServerSpec = collections.namedtuple("ServerSpec", "scheme address")
class ProxyConfig:
def __init__(
self,
host='',
port=8080,
cadir=CA_DIR,
clientcerts=None,
no_upstream_cert=False,
body_size_limit=None,
mode="regular",
upstream_server=None,
authenticator=None,
ignore_hosts=tuple(),
tcp_hosts=tuple(),
http2=False,
rawtcp=False,
ciphers_client=DEFAULT_CLIENT_CIPHERS,
ciphers_server=None,
certs=tuple(),
ssl_version_client="secure",
ssl_version_server="secure",
ssl_verify_upstream_cert=False,
ssl_verify_upstream_trusted_cadir=None,
ssl_verify_upstream_trusted_ca=None,
):
self.host = host
self.port = port
self.ciphers_client = ciphers_client
self.ciphers_server = ciphers_server
self.clientcerts = clientcerts
self.no_upstream_cert = no_upstream_cert
self.body_size_limit = body_size_limit
self.mode = mode
if upstream_server:
self.upstream_server = ServerSpec(upstream_server[0], Address.wrap(upstream_server[1]))
else:
self.upstream_server = None
self.check_ignore = HostMatcher(ignore_hosts)
self.check_tcp = HostMatcher(tcp_hosts)
self.http2 = http2
self.rawtcp = rawtcp
self.authenticator = authenticator
self.cadir = os.path.expanduser(cadir)
self.certstore = certutils.CertStore.from_store(
self.cadir,
CONF_BASENAME
)
for spec, cert in certs:
self.certstore.add_cert_file(spec, cert)
self.openssl_method_client, self.openssl_options_client = \
sslversion_choices[ssl_version_client]
self.openssl_method_server, self.openssl_options_server = \
sslversion_choices[ssl_version_server]
if ssl_verify_upstream_cert:
self.openssl_verification_mode_server = SSL.VERIFY_PEER
else:
self.openssl_verification_mode_server = SSL.VERIFY_NONE
self.openssl_trusted_cadir_server = ssl_verify_upstream_trusted_cadir
self.openssl_trusted_ca_server = ssl_verify_upstream_trusted_ca
def process_proxy_options(parser, options):
body_size_limit = utils.parse_size(options.body_size_limit)
c = 0
mode, upstream_server = "regular", None
if options.transparent_proxy:
c += 1
if not platform.resolver:
return parser.error("Transparent mode not supported on this platform.")
mode = "transparent"
if options.socks_proxy:
c += 1
mode = "socks5"
if options.reverse_proxy:
c += 1
mode = "reverse"
upstream_server = options.reverse_proxy
if options.upstream_proxy:
c += 1
mode = "upstream"
upstream_server = options.upstream_proxy
if c > 1:
return parser.error(
"Transparent, SOCKS5, reverse and upstream proxy mode "
"are mutually exclusive. Read the docs on proxy modes to understand why."
)
if options.clientcerts:
options.clientcerts = os.path.expanduser(options.clientcerts)
if not os.path.exists(options.clientcerts):
return parser.error(
"Client certificate path does not exist: %s" % options.clientcerts
)
if options.auth_nonanonymous or options.auth_singleuser or options.auth_htpasswd:
if options.transparent_proxy:
return parser.error("Proxy Authentication not supported in transparent mode.")
if options.socks_proxy:
return parser.error(
"Proxy Authentication not supported in SOCKS mode. "
"https://github.com/mitmproxy/mitmproxy/issues/738"
)
if options.auth_singleuser:
if len(options.auth_singleuser.split(':')) != 2:
return parser.error(
"Invalid single-user specification. Please use the format username:password"
)
username, password = options.auth_singleuser.split(':')
password_manager = authentication.PassManSingleUser(username, password)
elif options.auth_nonanonymous:
password_manager = authentication.PassManNonAnon()
elif options.auth_htpasswd:
try:
password_manager = authentication.PassManHtpasswd(
options.auth_htpasswd)
except ValueError as v:
return parser.error(v.message)
authenticator = authentication.BasicProxyAuth(password_manager, "mitmproxy")
else:
authenticator = authentication.NullProxyAuth(None)
certs = []
for i in options.certs:
parts = i.split("=", 1)
if len(parts) == 1:
parts = ["*", parts[0]]
parts[1] = os.path.expanduser(parts[1])
if not os.path.exists(parts[1]):
parser.error("Certificate file does not exist: %s" % parts[1])
certs.append(parts)
if options.http2 and not tcp.HAS_ALPN:
raise RuntimeError("HTTP2 support requires OpenSSL 1.0.2 or above.")
return ProxyConfig(
host=options.addr,
port=options.port,
cadir=options.cadir,
clientcerts=options.clientcerts,
no_upstream_cert=options.no_upstream_cert,
body_size_limit=body_size_limit,
mode=mode,
upstream_server=upstream_server,
ignore_hosts=options.ignore_hosts,
tcp_hosts=options.tcp_hosts,
http2=options.http2,
rawtcp=options.rawtcp,
authenticator=authenticator,
ciphers_client=options.ciphers_client,
ciphers_server=options.ciphers_server,
certs=tuple(certs),
ssl_version_client=options.ssl_version_client,
ssl_version_server=options.ssl_version_server,
ssl_verify_upstream_cert=options.ssl_verify_upstream_cert,
ssl_verify_upstream_trusted_cadir=options.ssl_verify_upstream_trusted_cadir,
ssl_verify_upstream_trusted_ca=options.ssl_verify_upstream_trusted_ca
)
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