from __future__ import absolute_import import os import re from netlib import http_auth, certutils from .. import utils, platform, version from .primitives import RegularProxyMode, TransparentProxyMode, UpstreamProxyMode, ReverseProxyMode TRANSPARENT_SSL_PORTS = [443, 8443] CONF_BASENAME = "mitmproxy" CONF_DIR = "~/.mitmproxy" def parse_host_pattern(patterns): return [re.compile(p, re.IGNORECASE) for p in patterns] class ProxyConfig: def __init__(self, host='', port=8080, server_version=version.NAMEVERSION, confdir=CONF_DIR, default_ca=None, 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=[], ciphers=None, certs=[], certforward=False, ssl_ports=TRANSPARENT_SSL_PORTS): self.host = host self.port = port self.server_version = server_version self.ciphers = ciphers 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(), TRANSPARENT_SSL_PORTS) elif mode == "reverse": self.mode = ReverseProxyMode(upstream_server) elif mode == "upstream": self.mode = UpstreamProxyMode(upstream_server) 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.ignore = parse_host_pattern(ignore) self.authenticator = authenticator self.confdir = os.path.expanduser(confdir) self.default_ca = default_ca or os.path.join(self.confdir, CONF_BASENAME + "-ca.pem") self.certstore = certutils.CertStore.from_store(self.confdir, CONF_BASENAME) for spec, cert in certs: self.certstore.add_cert_file(spec, cert) self.certforward = certforward self.ssl_ports = ssl_ports def process_proxy_options(parser, options): body_size_limit = utils.parse_size(options.body_size_limit) c = 0 mode, upstream_server = 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.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 mode, reverse mode 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 = http_auth.PassManSingleUser(username, password) elif options.auth_nonanonymous: password_manager = http_auth.PassManNonAnon() elif options.auth_htpasswd: try: password_manager = http_auth.PassManHtpasswd(options.auth_htpasswd) except ValueError, v: return parser.error(v.message) authenticator = http_auth.BasicProxyAuth(password_manager, "mitmproxy") else: authenticator = http_auth.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) return ProxyConfig( host=options.addr, port=options.port, confdir=options.confdir, 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=options.ignore, authenticator=authenticator, ciphers=options.ciphers, certs=certs, certforward=options.certforward, ) 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( "--client-certs", action="store", type=str, dest="clientcerts", default=None, help="Client certificate directory." ) group.add_argument( "--ciphers", action="store", type=str, dest="ciphers", default=None, help="SSL cipher specification." ) group.add_argument( "--cert-forward", action="store_true", dest="certforward", default=False, help="Simply forward SSL certificates from upstream." ) 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( "--ssl-port", action="append", type=int, dest="ssl_ports", default=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) )