def cacheContext(self):
# Unfortunate code duplication.
ctx = SSLContext(self.sslmethod)
# Always disable SSLv2/SSLv3/Compression
ctx.set_options(OP_NO_SSLv2)
ctx.set_options(OP_NO_SSLv3)
ctx.set_options(_OP_NO_COMPRESSION)
if self.ciphers is not None:
ctx.set_cipher_list(self.ciphers)
ctx.set_options(OP_CIPHER_SERVER_PREFERENCE)
if self.passwdCallback is not None:
ctx.set_passwd_cb(self.passwdCallback)
if self.keychainIdentity and hasattr(ctx, "use_keychain_identity"):
ctx.use_keychain_identity(self.keychainIdentity)
else:
if self.certificateFileName:
ctx.use_certificate_file(self.certificateFileName)
if self.privateKeyFileName:
ctx.use_privatekey_file(self.privateKeyFileName)
if self.certificateChainFile:
ctx.use_certificate_chain_file(self.certificateChainFile)
verifyFlags = VERIFY_NONE
if self.verifyClient:
verifyFlags = VERIFY_PEER
if self.requireClientCertificate:
verifyFlags |= VERIFY_FAIL_IF_NO_PEER_CERT
if self.verifyClientOnce:
verifyFlags |= VERIFY_CLIENT_ONCE
if self.clientCACertFileNames:
store = ctx.get_cert_store()
for cert in self.clientCACertFileNames:
with open(cert) as f:
certpem = f.read()
cert = Certificate.loadPEM(certpem)
store.add_cert(cert.original)
if self.sendCAsToClient:
ctx.add_client_ca(cert.original)
# When a client certificate is used we also need to set a session context id
# to avoid openssl SSL_F_SSL_GET_PREV_SESSION,SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED
# errors
ctx.set_session_id(str(uuid.uuid4()).replace("-", ""))
# It'd be nice if pyOpenSSL let us pass None here for this behavior (as
# the underlying OpenSSL API call allows NULL to be passed). It
# doesn't, so we'll supply a function which does the same thing.
def _verifyCallback(conn, cert, errno, depth, preverify_ok):
return preverify_ok
ctx.set_verify(verifyFlags, _verifyCallback)
if self.verifyClientDepth is not None:
ctx.set_verify_depth(self.verifyClientDepth)
self._context = ctx
def creatorForNetloc(self, hostname, port):
"""
Create a L{client connection creator
<twisted.internet.interfaces.IOpenSSLClientConnectionCreator>} for a
given network location.
@param tls: The TLS protocol to create a connection for.
@type tls: L{twisted.protocols.tls.TLSMemoryBIOProtocol}
@param hostname: The hostname part of the URI.
@type hostname: L{bytes}
@param port: The port part of the URI.
@type port: L{int}
@return: a connection creator with appropriate verification
restrictions set
@rtype: L{client connection creator
<twisted.internet.interfaces.IOpenSSLClientConnectionCreator>}
"""
key_pair = KeyPair.load(self.key, format=FILETYPE_PEM)
cert = PrivateCertificate.fromCertificateAndKeyPair(Certificate.loadPEM(self.crt), key_pair)
authority = ssl.Certificate.loadPEM(self.ca)
options = optionsForClientTLS(hostname.decode("ascii"), authority, clientCertificate=cert)
# bypass hostname verification
# options._identityVerifyingInfoCallback = self._identityVerifyingInfoCallback
options._ctx.set_info_callback(
_tolerateErrors(self._identityVerifyingInfoCallback)
)
return options
def processPeerCertificate(self):
# Look for SSL client cert
if self._secure:
try:
self.peerCredentials = TLSCredentials(Certificate.peerFromTransport(self.transport))
except CertificateError:
pass
self.peerCertificateCheck = True
def processPeerCertificate(self):
# Look for SSL client cert
if self._secure:
try:
self.peerCredentials = TLSCredentials(
Certificate.peerFromTransport(self.transport))
except CertificateError:
pass
self.peerCertificateCheck = True
def read_config(self, config: dict, config_dir_path: str, **kwargs):
acme_config = config.get("acme", None)
if acme_config is None:
acme_config = {}
self.acme_enabled = acme_config.get("enabled", False)
if self.acme_enabled:
logger.warning(ACME_SUPPORT_ENABLED_WARN)
# hyperlink complains on py2 if this is not a Unicode
self.acme_url = str(
acme_config.get("url",
"https://acme-v01.api.letsencrypt.org/directory"))
self.acme_port = acme_config.get("port", 80)
self.acme_bind_addresses = acme_config.get("bind_addresses",
["::", "0.0.0.0"])
self.acme_reprovision_threshold = acme_config.get(
"reprovision_threshold", 30)
self.acme_domain = acme_config.get("domain", config.get("server_name"))
self.acme_account_key_file = self.abspath(
acme_config.get("account_key_file",
config_dir_path + "/client.key"))
self.tls_certificate_file = self.abspath(
config.get("tls_certificate_path"))
self.tls_private_key_file = self.abspath(
config.get("tls_private_key_path"))
if self.root.server.has_tls_listener():
if not self.tls_certificate_file:
raise ConfigError(
"tls_certificate_path must be specified if TLS-enabled listeners are "
"configured.")
if not self.tls_private_key_file:
raise ConfigError(
"tls_private_key_path must be specified if TLS-enabled listeners are "
"configured.")
self._original_tls_fingerprints = config.get("tls_fingerprints", [])
if self._original_tls_fingerprints is None:
self._original_tls_fingerprints = []
self.tls_fingerprints = list(self._original_tls_fingerprints)
# Whether to verify certificates on outbound federation traffic
self.federation_verify_certificates = config.get(
"federation_verify_certificates", True)
# Minimum TLS version to use for outbound federation traffic
self.federation_client_minimum_tls_version = str(
config.get("federation_client_minimum_tls_version", 1))
if self.federation_client_minimum_tls_version not in [
"1", "1.1", "1.2", "1.3"
]:
raise ConfigError(
"federation_client_minimum_tls_version must be one of: 1, 1.1, 1.2, 1.3"
)
# Prevent people shooting themselves in the foot here by setting it to
# the biggest number blindly
if self.federation_client_minimum_tls_version == "1.3":
if getattr(SSL, "OP_NO_TLSv1_3", None) is None:
raise ConfigError(
("federation_client_minimum_tls_version cannot be 1.3, "
"your OpenSSL does not support it"))
# Whitelist of domains to not verify certificates for
fed_whitelist_entries = config.get(
"federation_certificate_verification_whitelist", [])
if fed_whitelist_entries is None:
fed_whitelist_entries = []
# Support globs (*) in whitelist values
self.federation_certificate_verification_whitelist = [
] # type: List[str]
for entry in fed_whitelist_entries:
try:
entry_regex = glob_to_regex(
entry.encode("ascii").decode("ascii"))
except UnicodeEncodeError:
raise ConfigError(
"IDNA domain names are not allowed in the "
"federation_certificate_verification_whitelist: %s" %
(entry, ))
# Convert globs to regex
self.federation_certificate_verification_whitelist.append(
entry_regex)
# List of custom certificate authorities for federation traffic validation
custom_ca_list = config.get("federation_custom_ca_list", None)
# Read in and parse custom CA certificates
self.federation_ca_trust_root = None
if custom_ca_list is not None:
if len(custom_ca_list) == 0:
# A trustroot cannot be generated without any CA certificates.
# Raise an error if this option has been specified without any
# corresponding certificates.
raise ConfigError(
"federation_custom_ca_list specified without "
"any certificate files")
certs = []
for ca_file in custom_ca_list:
logger.debug("Reading custom CA certificate file: %s", ca_file)
content = self.read_file(ca_file, "federation_custom_ca_list")
# Parse the CA certificates
try:
cert_base = Certificate.loadPEM(content)
certs.append(cert_base)
except Exception as e:
raise ConfigError(
"Error parsing custom CA certificate file %s: %s" %
(ca_file, e))
self.federation_ca_trust_root = trustRootFromCertificates(certs)
# This config option applies to non-federation HTTP clients
# (e.g. for talking to recaptcha, identity servers, and such)
# It should never be used in production, and is intended for
# use only when running tests.
self.use_insecure_ssl_client_just_for_testing_do_not_use = config.get(
"use_insecure_ssl_client_just_for_testing_do_not_use")
self.tls_certificate = None
self.tls_private_key = None
def read_config(self, config):
acme_config = config.get("acme", None)
if acme_config is None:
acme_config = {}
self.acme_enabled = acme_config.get("enabled", False)
# hyperlink complains on py2 if this is not a Unicode
self.acme_url = six.text_type(acme_config.get(
"url", u"https://acme-v01.api.letsencrypt.org/directory"
))
self.acme_port = acme_config.get("port", 80)
self.acme_bind_addresses = acme_config.get("bind_addresses", ['::', '0.0.0.0'])
self.acme_reprovision_threshold = acme_config.get("reprovision_threshold", 30)
self.acme_domain = acme_config.get("domain", config.get("server_name"))
self.tls_certificate_file = self.abspath(config.get("tls_certificate_path"))
self.tls_private_key_file = self.abspath(config.get("tls_private_key_path"))
if self.has_tls_listener():
if not self.tls_certificate_file:
raise ConfigError(
"tls_certificate_path must be specified if TLS-enabled listeners are "
"configured."
)
if not self.tls_private_key_file:
raise ConfigError(
"tls_private_key_path must be specified if TLS-enabled listeners are "
"configured."
)
self._original_tls_fingerprints = config.get("tls_fingerprints", [])
if self._original_tls_fingerprints is None:
self._original_tls_fingerprints = []
self.tls_fingerprints = list(self._original_tls_fingerprints)
# Whether to verify certificates on outbound federation traffic
self.federation_verify_certificates = config.get(
"federation_verify_certificates", True,
)
# Whitelist of domains to not verify certificates for
fed_whitelist_entries = config.get(
"federation_certificate_verification_whitelist", [],
)
# Support globs (*) in whitelist values
self.federation_certificate_verification_whitelist = []
for entry in fed_whitelist_entries:
# Convert globs to regex
entry_regex = glob_to_regex(entry)
self.federation_certificate_verification_whitelist.append(entry_regex)
# List of custom certificate authorities for federation traffic validation
custom_ca_list = config.get(
"federation_custom_ca_list", None,
)
# Read in and parse custom CA certificates
self.federation_ca_trust_root = None
if custom_ca_list is not None:
if len(custom_ca_list) == 0:
# A trustroot cannot be generated without any CA certificates.
# Raise an error if this option has been specified without any
# corresponding certificates.
raise ConfigError("federation_custom_ca_list specified without "
"any certificate files")
certs = []
for ca_file in custom_ca_list:
logger.debug("Reading custom CA certificate file: %s", ca_file)
content = self.read_file(ca_file, "federation_custom_ca_list")
# Parse the CA certificates
try:
cert_base = Certificate.loadPEM(content)
certs.append(cert_base)
except Exception as e:
raise ConfigError("Error parsing custom CA certificate file %s: %s"
% (ca_file, e))
self.federation_ca_trust_root = trustRootFromCertificates(certs)
# This config option applies to non-federation HTTP clients
# (e.g. for talking to recaptcha, identity servers, and such)
# It should never be used in production, and is intended for
# use only when running tests.
self.use_insecure_ssl_client_just_for_testing_do_not_use = config.get(
"use_insecure_ssl_client_just_for_testing_do_not_use"
)
self.tls_certificate = None
self.tls_private_key = None
def read_config(self, config: JsonDict, **kwargs: Any) -> None:
self.tls_certificate_file = self.abspath(config.get("tls_certificate_path"))
self.tls_private_key_file = self.abspath(config.get("tls_private_key_path"))
if self.root.server.has_tls_listener():
if not self.tls_certificate_file:
raise ConfigError(
"tls_certificate_path must be specified if TLS-enabled listeners are "
"configured."
)
if not self.tls_private_key_file:
raise ConfigError(
"tls_private_key_path must be specified if TLS-enabled listeners are "
"configured."
)
# Whether to verify certificates on outbound federation traffic
self.federation_verify_certificates = config.get(
"federation_verify_certificates", True
)
# Minimum TLS version to use for outbound federation traffic
self.federation_client_minimum_tls_version = str(
config.get("federation_client_minimum_tls_version", 1)
)
if self.federation_client_minimum_tls_version not in ["1", "1.1", "1.2", "1.3"]:
raise ConfigError(
"federation_client_minimum_tls_version must be one of: 1, 1.1, 1.2, 1.3"
)
# Prevent people shooting themselves in the foot here by setting it to
# the biggest number blindly
if self.federation_client_minimum_tls_version == "1.3":
if getattr(SSL, "OP_NO_TLSv1_3", None) is None:
raise ConfigError(
"federation_client_minimum_tls_version cannot be 1.3, "
"your OpenSSL does not support it"
)
# Whitelist of domains to not verify certificates for
fed_whitelist_entries = config.get(
"federation_certificate_verification_whitelist", []
)
if fed_whitelist_entries is None:
fed_whitelist_entries = []
# Support globs (*) in whitelist values
self.federation_certificate_verification_whitelist: List[Pattern] = []
for entry in fed_whitelist_entries:
try:
entry_regex = glob_to_regex(entry.encode("ascii").decode("ascii"))
except UnicodeEncodeError:
raise ConfigError(
"IDNA domain names are not allowed in the "
"federation_certificate_verification_whitelist: %s" % (entry,)
)
# Convert globs to regex
self.federation_certificate_verification_whitelist.append(entry_regex)
# List of custom certificate authorities for federation traffic validation
custom_ca_list = config.get("federation_custom_ca_list", None)
# Read in and parse custom CA certificates
self.federation_ca_trust_root = None
if custom_ca_list is not None:
if len(custom_ca_list) == 0:
# A trustroot cannot be generated without any CA certificates.
# Raise an error if this option has been specified without any
# corresponding certificates.
raise ConfigError(
"federation_custom_ca_list specified without "
"any certificate files"
)
certs = []
for ca_file in custom_ca_list:
logger.debug("Reading custom CA certificate file: %s", ca_file)
content = self.read_file(ca_file, "federation_custom_ca_list")
# Parse the CA certificates
try:
cert_base = Certificate.loadPEM(content)
certs.append(cert_base)
except Exception as e:
raise ConfigError(
"Error parsing custom CA certificate file %s: %s" % (ca_file, e)
)
self.federation_ca_trust_root = trustRootFromCertificates(certs)
# This config option applies to non-federation HTTP clients
# (e.g. for talking to recaptcha, identity servers, and such)
# It should never be used in production, and is intended for
# use only when running tests.
self.use_insecure_ssl_client_just_for_testing_do_not_use = config.get(
"use_insecure_ssl_client_just_for_testing_do_not_use"
)
self.tls_certificate: Optional[crypto.X509] = None
self.tls_private_key: Optional[crypto.PKey] = None
def read_config(self, config):
acme_config = config.get("acme", None)
if acme_config is None:
acme_config = {}
self.acme_enabled = acme_config.get("enabled", False)
# hyperlink complains on py2 if this is not a Unicode
self.acme_url = six.text_type(acme_config.get(
"url", u"https://acme-v01.api.letsencrypt.org/directory"
))
self.acme_port = acme_config.get("port", 80)
self.acme_bind_addresses = acme_config.get("bind_addresses", ['::', '0.0.0.0'])
self.acme_reprovision_threshold = acme_config.get("reprovision_threshold", 30)
self.acme_domain = acme_config.get("domain", config.get("server_name"))
self.tls_certificate_file = self.abspath(config.get("tls_certificate_path"))
self.tls_private_key_file = self.abspath(config.get("tls_private_key_path"))
if self.has_tls_listener():
if not self.tls_certificate_file:
raise ConfigError(
"tls_certificate_path must be specified if TLS-enabled listeners are "
"configured."
)
if not self.tls_private_key_file:
raise ConfigError(
"tls_private_key_path must be specified if TLS-enabled listeners are "
"configured."
)
self._original_tls_fingerprints = config.get("tls_fingerprints", [])
if self._original_tls_fingerprints is None:
self._original_tls_fingerprints = []
self.tls_fingerprints = list(self._original_tls_fingerprints)
# Whether to verify certificates on outbound federation traffic
self.federation_verify_certificates = config.get(
"federation_verify_certificates", False,
)
# Whitelist of domains to not verify certificates for
fed_whitelist_entries = config.get(
"federation_certificate_verification_whitelist", [],
)
# Support globs (*) in whitelist values
self.federation_certificate_verification_whitelist = []
for entry in fed_whitelist_entries:
# Convert globs to regex
entry_regex = glob_to_regex(entry)
self.federation_certificate_verification_whitelist.append(entry_regex)
# List of custom certificate authorities for federation traffic validation
custom_ca_list = config.get(
"federation_custom_ca_list", None,
)
# Read in and parse custom CA certificates
self.federation_ca_trust_root = None
if custom_ca_list is not None:
if len(custom_ca_list) == 0:
# A trustroot cannot be generated without any CA certificates.
# Raise an error if this option has been specified without any
# corresponding certificates.
raise ConfigError("federation_custom_ca_list specified without "
"any certificate files")
certs = []
for ca_file in custom_ca_list:
logger.debug("Reading custom CA certificate file: %s", ca_file)
content = self.read_file(ca_file)
# Parse the CA certificates
try:
cert_base = Certificate.loadPEM(content)
certs.append(cert_base)
except Exception as e:
raise ConfigError("Error parsing custom CA certificate file %s: %s"
% (ca_file, e))
self.federation_ca_trust_root = trustRootFromCertificates(certs)
# This config option applies to non-federation HTTP clients
# (e.g. for talking to recaptcha, identity servers, and such)
# It should never be used in production, and is intended for
# use only when running tests.
self.use_insecure_ssl_client_just_for_testing_do_not_use = config.get(
"use_insecure_ssl_client_just_for_testing_do_not_use"
)
self.tls_certificate = None
self.tls_private_key = None
