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import os
import re
import typing
from OpenSSL import crypto
from mitmproxy import exceptions
from mitmproxy import options as moptions
from mitmproxy import certs
from mitmproxy.net import server_spec
CONF_BASENAME = "mitmproxy"
class HostMatcher:
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
host = "%s:%s" % address
if any(rex.search(host) for rex in self.regexes):
return True
else:
return False
def __bool__(self):
return bool(self.patterns)
class ProxyConfig:
def __init__(self, options: moptions.Options) -> None:
self.options = options
self.check_ignore: HostMatcher = None
self.check_tcp: HostMatcher = None
self.certstore: certs.CertStore = None
self.upstream_server: typing.Optional[server_spec.ServerSpec] = None
self.configure(options, set(options.keys()))
options.changed.connect(self.configure)
def configure(self, options: moptions.Options, updated: typing.Any) -> None:
if "ignore_hosts" in updated:
self.check_ignore = HostMatcher(options.ignore_hosts)
if "tcp_hosts" in updated:
self.check_tcp = HostMatcher(options.tcp_hosts)
certstore_path = os.path.expanduser(options.cadir)
if not os.path.exists(os.path.dirname(certstore_path)):
raise exceptions.OptionsError(
"Certificate Authority parent directory does not exist: %s" %
os.path.dirname(certstore_path)
)
self.certstore = certs.CertStore.from_store(
certstore_path,
CONF_BASENAME
)
for c in options.certs:
parts = c.split("=", 1)
if len(parts) == 1:
parts = ["*", parts[0]]
cert = os.path.expanduser(parts[1])
if not os.path.exists(cert):
raise exceptions.OptionsError(
"Certificate file does not exist: %s" % cert
)
try:
self.certstore.add_cert_file(parts[0], cert)
except crypto.Error:
raise exceptions.OptionsError(
"Invalid certificate format: %s" % cert
)
m = options.mode
if m.startswith("upstream:") or m.startswith("reverse:"):
_, spec = server_spec.parse_with_mode(options.mode)
self.upstream_server = spec
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