mirror of
https://github.com/Grasscutters/mitmproxy.git
synced 2024-11-23 16:17:49 +00:00
0b7b0ac33d
added support for specifying cipher suites on both sides of the proxy instead of just the one.
258 lines
9.7 KiB
Python
258 lines
9.7 KiB
Python
from __future__ import absolute_import
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import os
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import re
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from OpenSSL import SSL
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from netlib import http_auth, certutils, tcp
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from .. import utils, platform, version
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from .primitives import RegularProxyMode, TransparentProxyMode, UpstreamProxyMode, ReverseProxyMode, Socks5ProxyMode
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TRANSPARENT_SSL_PORTS = [443, 8443]
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CONF_BASENAME = "mitmproxy"
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CA_DIR = "~/.mitmproxy"
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class HostMatcher(object):
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def __init__(self, patterns=[]):
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self.patterns = list(patterns)
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self.regexes = [re.compile(p, re.IGNORECASE) for p in self.patterns]
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def __call__(self, address):
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address = tcp.Address.wrap(address)
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host = "%s:%s" % (address.host, address.port)
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if any(rex.search(host) for rex in self.regexes):
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return True
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else:
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return False
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def __nonzero__(self):
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return bool(self.patterns)
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class ProxyConfig:
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def __init__(
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self,
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host='',
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port=8080,
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server_version=version.NAMEVERSION,
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cadir=CA_DIR,
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clientcerts=None,
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no_upstream_cert=False,
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body_size_limit=None,
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mode=None,
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upstream_server=None,
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http_form_in=None,
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http_form_out=None,
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authenticator=None,
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ignore_hosts=[],
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tcp_hosts=[],
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ciphers=None,
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certs=[],
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certforward=False,
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ssl_version_client="secure",
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ssl_version_server="secure",
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ssl_ports=TRANSPARENT_SSL_PORTS
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):
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self.host = host
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self.port = port
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self.server_version = server_version
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self.client_ciphers = client_ciphers
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self.server_ciphers = server_ciphers
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self.clientcerts = clientcerts
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self.no_upstream_cert = no_upstream_cert
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self.body_size_limit = body_size_limit
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if mode == "transparent":
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self.mode = TransparentProxyMode(platform.resolver(), ssl_ports)
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elif mode == "socks5":
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self.mode = Socks5ProxyMode(ssl_ports)
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elif mode == "reverse":
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self.mode = ReverseProxyMode(upstream_server)
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elif mode == "upstream":
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self.mode = UpstreamProxyMode(upstream_server)
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else:
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self.mode = RegularProxyMode()
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# Handle manual overrides of the http forms
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self.mode.http_form_in = http_form_in or self.mode.http_form_in
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self.mode.http_form_out = http_form_out or self.mode.http_form_out
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self.check_ignore = HostMatcher(ignore_hosts)
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self.check_tcp = HostMatcher(tcp_hosts)
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self.authenticator = authenticator
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self.cadir = os.path.expanduser(cadir)
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self.certstore = certutils.CertStore.from_store(self.cadir, CONF_BASENAME)
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for spec, cert in certs:
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self.certstore.add_cert_file(spec, cert)
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self.certforward = certforward
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self.openssl_client_method, self.openssl_client_options = version_to_openssl(ssl_version_client)
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self.openssl_server_method, self.openssl_server_options = version_to_openssl(ssl_version_server)
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self.ssl_ports = ssl_ports
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sslversion_choices = ("all", "secure", "SSLv2", "SSLv3", "TLSv1", "TLSv1_1", "TLSv1_2")
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def version_to_openssl(version):
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"""
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Convert a reasonable SSL version specification into the format OpenSSL expects.
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Don't ask...
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https://bugs.launchpad.net/pyopenssl/+bug/1020632/comments/3
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"""
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if version == "all":
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return SSL.SSLv23_METHOD, None
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elif version == "secure":
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# SSLv23_METHOD + NO_SSLv2 + NO_SSLv3 == TLS 1.0+
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# TLSv1_METHOD would be TLS 1.0 only
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return SSL.SSLv23_METHOD, (SSL.OP_NO_SSLv2 | SSL.OP_NO_SSLv3)
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elif version in sslversion_choices:
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return getattr(SSL, "%s_METHOD" % version), None
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else:
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raise ValueError("Invalid SSL version: %s" % version)
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def process_proxy_options(parser, options):
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body_size_limit = utils.parse_size(options.body_size_limit)
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c = 0
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mode, upstream_server = None, None
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if options.transparent_proxy:
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c += 1
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if not platform.resolver:
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return parser.error("Transparent mode not supported on this platform.")
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mode = "transparent"
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if options.socks_proxy:
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c += 1
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mode = "socks5"
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if options.reverse_proxy:
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c += 1
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mode = "reverse"
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upstream_server = options.reverse_proxy
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if options.upstream_proxy:
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c += 1
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mode = "upstream"
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upstream_server = options.upstream_proxy
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if c > 1:
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return parser.error("Transparent, SOCKS5, reverse and upstream proxy mode "
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"are mutually exclusive.")
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if options.clientcerts:
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options.clientcerts = os.path.expanduser(options.clientcerts)
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if not os.path.exists(options.clientcerts) or not os.path.isdir(options.clientcerts):
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return parser.error(
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"Client certificate directory does not exist or is not a directory: %s" % options.clientcerts
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)
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if (options.auth_nonanonymous or options.auth_singleuser or options.auth_htpasswd):
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if options.auth_singleuser:
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if len(options.auth_singleuser.split(':')) != 2:
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return parser.error("Invalid single-user specification. Please use the format username:password")
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username, password = options.auth_singleuser.split(':')
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password_manager = http_auth.PassManSingleUser(username, password)
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elif options.auth_nonanonymous:
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password_manager = http_auth.PassManNonAnon()
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elif options.auth_htpasswd:
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try:
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password_manager = http_auth.PassManHtpasswd(options.auth_htpasswd)
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except ValueError, v:
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return parser.error(v.message)
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authenticator = http_auth.BasicProxyAuth(password_manager, "mitmproxy")
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else:
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authenticator = http_auth.NullProxyAuth(None)
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certs = []
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for i in options.certs:
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parts = i.split("=", 1)
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if len(parts) == 1:
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parts = ["*", parts[0]]
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parts[1] = os.path.expanduser(parts[1])
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if not os.path.exists(parts[1]):
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parser.error("Certificate file does not exist: %s" % parts[1])
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certs.append(parts)
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ssl_ports = options.ssl_ports
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if options.ssl_ports != TRANSPARENT_SSL_PORTS:
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# arparse appends to default value by default, strip that off.
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# see http://bugs.python.org/issue16399
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ssl_ports = ssl_ports[len(TRANSPARENT_SSL_PORTS):]
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return ProxyConfig(
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host=options.addr,
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port=options.port,
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cadir=options.cadir,
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clientcerts=options.clientcerts,
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no_upstream_cert=options.no_upstream_cert,
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body_size_limit=body_size_limit,
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mode=mode,
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upstream_server=upstream_server,
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http_form_in=options.http_form_in,
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http_form_out=options.http_form_out,
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ignore_hosts=options.ignore_hosts,
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tcp_hosts=options.tcp_hosts,
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authenticator=authenticator,
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ciphers=options.ciphers,
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certs=certs,
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certforward=options.certforward,
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ssl_version_client=options.ssl_version_client,
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ssl_version_server=options.ssl_version_server,
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ssl_ports=ssl_ports
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)
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def ssl_option_group(parser):
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group = parser.add_argument_group("SSL")
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group.add_argument(
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"--cert", dest='certs', default=[], type=str,
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metavar="SPEC", action="append",
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help='Add an SSL certificate. SPEC is of the form "[domain=]path". '
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'The domain may include a wildcard, and is equal to "*" if not specified. '
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'The file at path is a certificate in PEM format. If a private key is included in the PEM, '
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'it is used, else the default key in the conf dir is used. '
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'The PEM file should contain the full certificate chain, with the leaf certificate as the first entry. '
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'Can be passed multiple times.'
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)
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group.add_argument(
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"--client-certs", action="store",
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type=str, dest="clientcerts", default=None,
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help="Client certificate directory."
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)
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group.add_argument(
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"--client-ciphers", action="store",
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type=str, dest="client_ciphers", default=None,
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help="Proxy client SSL cipher specification."
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)
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group.add_argument(
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"--server-ciphers", action="store",
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type=str, dest="server_ciphers", default=None,
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help="Proxy server SSL cipher specification."
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)
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group.add_argument(
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"--cert-forward", action="store_true",
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dest="certforward", default=False,
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help="Simply forward SSL certificates from upstream."
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)
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group.add_argument(
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"--ssl-version-client", dest="ssl_version_client",
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default="secure", action="store",
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choices=sslversion_choices,
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help="Set supported SSL/TLS version for client connections. "
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"SSLv2, SSLv3 and 'all' are INSECURE. Defaults to secure."
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)
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group.add_argument(
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"--ssl-version-server", dest="ssl_version_server",
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default="secure", action="store",
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choices=sslversion_choices,
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help="Set supported SSL/TLS version for server connections. "
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"SSLv2, SSLv3 and 'all' are INSECURE. Defaults to secure."
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)
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group.add_argument(
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"--no-upstream-cert", default=False,
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action="store_true", dest="no_upstream_cert",
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help="Don't connect to upstream server to look up certificate details."
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)
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group.add_argument(
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"--ssl-port", action="append", type=int, dest="ssl_ports", default=list(TRANSPARENT_SSL_PORTS),
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metavar="PORT",
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help="Can be passed multiple times. Specify destination ports which are assumed to be SSL. "
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"Defaults to %s." % str(TRANSPARENT_SSL_PORTS)
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)
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