from __future__ import absolute_import import os import re from OpenSSL import SSL import netlib from netlib import http, certutils, tcp from netlib.http import authentication from .. import utils, platform, version from .primitives import RegularProxyMode, SpoofMode, SSLSpoofMode, TransparentProxyMode, UpstreamProxyMode, ReverseProxyMode, Socks5ProxyMode TRANSPARENT_SSL_PORTS = [443, 8443] 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=[]): self.patterns = list(patterns) self.regexes = [re.compile(p, re.IGNORECASE) for p in self.patterns] def __call__(self, address): 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) class ProxyConfig: def __init__( self, host='', port=8080, server_version=version.NAMEVERSION, cadir=CA_DIR, clientcerts=None, no_upstream_cert=False, body_size_limit=None, mode=None, upstream_server=None, http_form_in=None, http_form_out=None, authenticator=None, ignore_hosts=[], tcp_hosts=[], ciphers_client=None, ciphers_server=None, certs=[], ssl_version_client=tcp.SSL_DEFAULT_METHOD, ssl_version_server=tcp.SSL_DEFAULT_METHOD, ssl_ports=TRANSPARENT_SSL_PORTS, spoofed_ssl_port=None, ssl_verify_upstream_cert=False, ssl_upstream_trusted_cadir=None, ssl_upstream_trusted_ca=None ): self.host = host self.port = port self.server_version = server_version 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 if mode == "transparent": self.mode = TransparentProxyMode(platform.resolver(), ssl_ports) elif mode == "socks5": self.mode = Socks5ProxyMode(ssl_ports) elif mode == "reverse": self.mode = ReverseProxyMode(upstream_server) elif mode == "upstream": self.mode = UpstreamProxyMode(upstream_server) elif mode == "spoof": self.mode = SpoofMode() elif mode == "sslspoof": self.mode = SSLSpoofMode(spoofed_ssl_port) else: self.mode = RegularProxyMode() # Handle manual overrides of the http forms self.mode.http_form_in = http_form_in or self.mode.http_form_in self.mode.http_form_out = http_form_out or self.mode.http_form_out self.check_ignore = HostMatcher(ignore_hosts) self.check_tcp = HostMatcher(tcp_hosts) 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.ssl_ports = ssl_ports if isinstance(ssl_version_client, int): self.openssl_method_client = ssl_version_client else: self.openssl_method_client = tcp.SSL_VERSIONS[ssl_version_client] if isinstance(ssl_version_server, int): self.openssl_method_server = ssl_version_server else: self.openssl_method_server = tcp.SSL_VERSIONS[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_upstream_trusted_cadir self.openssl_trusted_ca_server = ssl_upstream_trusted_ca self.openssl_options_client = tcp.SSL_DEFAULT_OPTIONS self.openssl_options_server = tcp.SSL_DEFAULT_OPTIONS def process_proxy_options(parser, options): body_size_limit = utils.parse_size(options.body_size_limit) c = 0 mode, upstream_server, spoofed_ssl_port = None, None, 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 options.spoof_mode: c += 1 mode = "spoof" if options.ssl_spoof_mode: c += 1 mode = "sslspoof" spoofed_ssl_port = options.spoofed_ssl_port if c > 1: return parser.error( "Transparent, SOCKS5, reverse and upstream proxy mode " "are mutually exclusive.") if options.clientcerts: options.clientcerts = os.path.expanduser(options.clientcerts) if not os.path.exists( options.clientcerts) or not os.path.isdir( options.clientcerts): return parser.error( "Client certificate directory does not exist or is not a directory: %s" % options.clientcerts) if (options.auth_nonanonymous or options.auth_singleuser or options.auth_htpasswd): 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) ssl_ports = options.ssl_ports if options.ssl_ports != TRANSPARENT_SSL_PORTS: # arparse appends to default value by default, strip that off. # see http://bugs.python.org/issue16399 ssl_ports = ssl_ports[len(TRANSPARENT_SSL_PORTS):] 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, http_form_in=options.http_form_in, http_form_out=options.http_form_out, ignore_hosts=options.ignore_hosts, tcp_hosts=options.tcp_hosts, authenticator=authenticator, ciphers_client=options.ciphers_client, ciphers_server=options.ciphers_server, certs=certs, ssl_version_client=options.ssl_version_client, ssl_version_server=options.ssl_version_server, ssl_ports=ssl_ports, spoofed_ssl_port=spoofed_ssl_port, ssl_verify_upstream_cert=options.ssl_verify_upstream_cert, ssl_upstream_trusted_cadir=options.ssl_upstream_trusted_cadir, ssl_upstream_trusted_ca=options.ssl_upstream_trusted_ca ) def ssl_option_group(parser): group = parser.add_argument_group("SSL") group.add_argument( "--cert", dest='certs', default=[], type=str, metavar="SPEC", action="append", help='Add an SSL certificate. SPEC is of the form "[domain=]path". ' 'The domain may include a wildcard, and is equal to "*" if not specified. ' 'The file at path is a certificate in PEM format. If a private key is included in the PEM, ' 'it is used, else the default key in the conf dir is used. ' 'The PEM file should contain the full certificate chain, with the leaf certificate as the first entry. ' 'Can be passed multiple times.') group.add_argument( "--ciphers-client", action="store", type=str, dest="ciphers_client", default=DEFAULT_CLIENT_CIPHERS, help="Set supported ciphers for client connections. (OpenSSL Syntax)" ) group.add_argument( "--ciphers-server", action="store", type=str, dest="ciphers_server", default=None, help="Set supported ciphers for server connections. (OpenSSL Syntax)" ) group.add_argument( "--client-certs", action="store", type=str, dest="clientcerts", default=None, help="Client certificate directory." ) group.add_argument( "--no-upstream-cert", default=False, action="store_true", dest="no_upstream_cert", help="Don't connect to upstream server to look up certificate details." ) group.add_argument( "--verify-upstream-cert", default=False, action="store_true", dest="ssl_verify_upstream_cert", help="Verify upstream server SSL/TLS certificates and fail if invalid " "or not present." ) group.add_argument( "--upstream-trusted-cadir", default=None, action="store", dest="ssl_upstream_trusted_cadir", help="Path to a directory of trusted CA certificates for upstream " "server verification prepared using the c_rehash tool." ) group.add_argument( "--upstream-trusted-ca", default=None, action="store", dest="ssl_upstream_trusted_ca", help="Path to a PEM formatted trusted CA certificate." ) group.add_argument( "--ssl-port", action="append", type=int, dest="ssl_ports", default=list(TRANSPARENT_SSL_PORTS), metavar="PORT", help="Can be passed multiple times. Specify destination ports which are assumed to be SSL. " "Defaults to %s." % str(TRANSPARENT_SSL_PORTS)) group.add_argument( "--ssl-version-client", dest="ssl_version_client", type=str, default=tcp.SSL_DEFAULT_VERSION, choices=tcp.SSL_VERSIONS.keys(), help="""" Use a specified protocol for client connections: TLSv1.2, TLSv1.1, TLSv1, SSLv3, SSLv2, SSLv23. Default to SSLv23.""" ) group.add_argument( "--ssl-version-server", dest="ssl_version_server", type=str, default=tcp.SSL_DEFAULT_VERSION, choices=tcp.SSL_VERSIONS.keys(), help="""" Use a specified protocol for server connections: TLSv1.2, TLSv1.1, TLSv1, SSLv3, SSLv2, SSLv23. Default to SSLv23.""" )