def test_via_http_proxy(self):
# Given an HTTP proxy
proxy_port = 8123
proxy_server = ThreadingHTTPServer(("", proxy_port), ProxyHandler)
proxy_server_thread = threading.Thread(target=proxy_server.serve_forever)
proxy_server_thread.start()
# And a server location
server_location = ServerNetworkLocationViaHttpProxy(
hostname="www.google.com",
port=443,
# Configured with this proxy
http_proxy_settings=HttpProxySettings("localhost", proxy_port),
)
# When testing connectivity
try:
server_info = ServerConnectivityTester().perform(server_location)
finally:
proxy_server.shutdown()
# It succeeds
assert server_info.tls_probing_result.cipher_suite_supported
assert server_info.tls_probing_result.highest_tls_version_supported
assert server_info.tls_probing_result.client_auth_requirement
assert server_info.get_preconfigured_tls_connection()
def create() -> ServerNetworkLocationViaHttpProxy:
return ServerNetworkLocationViaHttpProxy(
hostname="ûnicôdé." + fake.hostname(),
port=123,
http_proxy_settings=HttpProxySettings(hostname="prôxy." +
fake.hostname(),
port=456),
)
def test_via_http_proxy_but_proxy_rejected_http_connect(self):
# Given a server location
server_location = ServerNetworkLocationViaHttpProxy(
hostname="www.google.com",
port=443,
# Configured with a proxy that is going to reject the HTTP CONNECT request
http_proxy_settings=HttpProxySettings("www.hotmail.com", 443),
)
# When testing connectivity, it fails with the right error
with pytest.raises(ConnectionToHttpProxyTimedOut):
ServerConnectivityTester().perform(server_location)
def test_via_http_proxy_but_proxy_rejected_connection(self):
# Given a server location
server_location = ServerNetworkLocationViaHttpProxy(
hostname="www.google.com",
port=443,
# Configured with a proxy that's offline
http_proxy_settings=HttpProxySettings("localhost", 1234),
)
# When testing connectivity, it fails with the right error
with pytest.raises(HttpProxyRejectedConnection):
ServerConnectivityTester().perform(server_location)
def test_via_http_proxy_but_proxy_timed_out(self):
# Given a server location
server_location = ServerNetworkLocationViaHttpProxy(
hostname="www.google.com",
port=443,
# Configured with a proxy that will time out
http_proxy_settings=HttpProxySettings("www.hotmail.com", 1234),
)
# When testing connectivity, it fails with the right error
with pytest.raises(ConnectionToHttpProxyTimedOut):
ServerConnectivityTester().perform(server_location)
def test_via_http_proxy_but_proxy_dns_error(self):
# Given a server location
server_location = ServerNetworkLocationViaHttpProxy(
hostname="www.google.com",
port=443,
# Configured with a proxy that cannot be looked up via DNS
http_proxy_settings=HttpProxySettings("notarealdomain.not.real.notreal.not", 443),
)
# When testing connectivity, it fails with the right error
with pytest.raises(ConnectionToHttpProxyFailed):
ServerConnectivityTester().perform(server_location)
def parse_command_line(self) -> ParsedCommandLine:
"""Parses the command line used to launch SSLyze.
"""
(args_command_list, args_target_list) = self._parser.parse_args()
if args_command_list.update_trust_stores:
# Just update the trust stores and do nothing
TrustStoresRepository.update_default()
raise TrustStoresUpdateCompleted()
# Handle the --targets_in command line and fill args_target_list
if args_command_list.targets_in:
if args_target_list:
raise CommandLineParsingError(
"Cannot use --targets_list and specify targets within the command line."
)
try: # Read targets from a file
with open(args_command_list.targets_in) as f:
for target in f.readlines():
if target.strip(): # Ignore empty lines
if not target.startswith(
"#"): # Ignore comment lines
args_target_list.append(target.strip())
except IOError:
raise CommandLineParsingError(
"Can't read targets from input file '{}.".format(
args_command_list.targets_in))
if not args_target_list:
raise CommandLineParsingError("No targets to scan.")
# Handle the --regular command line parameter as a shortcut
if self._parser.has_option("--regular"):
if getattr(args_command_list, "regular"):
setattr(args_command_list, "regular", False)
for cmd in self.REGULAR_CMD:
setattr(args_command_list, cmd, True)
# Handle JSON settings
should_print_json_to_console = False
json_path_out: Optional[Path] = None
if args_command_list.json_file:
if args_command_list.json_file == "-":
if args_command_list.quiet:
raise CommandLineParsingError(
"Cannot use --quiet with --json_out -.")
should_print_json_to_console = True
else:
json_path_out = Path(args_command_list.json_file).absolute()
# Sanity checks on the client cert options
client_auth_creds = None
if bool(args_command_list.cert) ^ bool(args_command_list.key):
raise CommandLineParsingError(
"No private key or certificate file were given. See --cert and --key."
)
elif args_command_list.cert:
# Private key formats
if args_command_list.keyform == "DER":
key_type = OpenSslFileTypeEnum.ASN1
elif args_command_list.keyform == "PEM":
key_type = OpenSslFileTypeEnum.PEM
else:
raise CommandLineParsingError(
"--keyform should be DER or PEM.")
# Let's try to open the cert and key files
try:
client_auth_creds = ClientAuthenticationCredentials(
certificate_chain_path=Path(args_command_list.cert),
key_path=Path(args_command_list.key),
key_password=args_command_list.keypass,
key_type=key_type,
)
except ValueError as e:
raise CommandLineParsingError(
"Invalid client authentication settings: {}.".format(
e.args[0]))
# HTTP CONNECT proxy
http_proxy_settings = None
if args_command_list.https_tunnel:
try:
http_proxy_settings = HttpProxySettings.from_url(
args_command_list.https_tunnel)
except ValueError as e:
raise CommandLineParsingError(
"Invalid proxy URL for --https_tunnel: {}.".format(
e.args[0]))
# Create the server location objects for each specified servers
good_servers: List[Tuple[ServerNetworkLocation,
ServerNetworkConfiguration]] = []
invalid_server_strings: List[InvalidServerStringError] = []
for server_string in args_target_list:
try:
# Parse the string supplied via the CLI for this server
hostname, ip_address, port = CommandLineServerStringParser.parse_server_string(
server_string)
except InvalidServerStringError as e:
# The server string is malformed
invalid_server_strings.append(e)
continue
# If not port number was supplied, assume 443
final_port = port if port else 443
# Figure out how we're going to connect to the server
server_location: ServerNetworkLocation
if http_proxy_settings:
# Connect to the server via an HTTP proxy
# A limitation when using the CLI is that only one http_proxy_settings can be specified for all servers
server_location = ServerNetworkLocationViaHttpProxy(
hostname=hostname,
port=final_port,
http_proxy_settings=http_proxy_settings)
else:
# Connect to the server directly
if ip_address:
server_location = ServerNetworkLocationViaDirectConnection(
hostname=hostname,
port=final_port,
ip_address=ip_address)
else:
# No IP address supplied - do a DNS lookup
try:
server_location = ServerNetworkLocationViaDirectConnection.with_ip_address_lookup(
hostname=hostname, port=final_port)
except ServerHostnameCouldNotBeResolved:
invalid_server_strings.append(
InvalidServerStringError(
server_string=f"{hostname}:{final_port}",
error_message=
f"Could not resolve hostname {hostname}",
))
continue
# Figure out extra network config for this server
# Opportunistic TLS
opportunistic_tls: Optional[
ProtocolWithOpportunisticTlsEnum] = None
if args_command_list.starttls:
if args_command_list.starttls == "auto":
# Special value to auto-derive the protocol from the port number
opportunistic_tls = ProtocolWithOpportunisticTlsEnum.from_default_port(
final_port)
elif args_command_list.starttls in _STARTTLS_PROTOCOL_DICT:
opportunistic_tls = _STARTTLS_PROTOCOL_DICT[
args_command_list.starttls]
else:
raise CommandLineParsingError(self.START_TLS_USAGE)
try:
sni_hostname = args_command_list.sni if args_command_list.sni else hostname
network_config = ServerNetworkConfiguration(
tls_opportunistic_encryption=opportunistic_tls,
tls_server_name_indication=sni_hostname,
tls_client_auth_credentials=client_auth_creds,
xmpp_to_hostname=args_command_list.xmpp_to,
)
good_servers.append((server_location, network_config))
except InvalidServerNetworkConfigurationError as e:
raise CommandLineParsingError(e.args[0])
# Figure out global network settings
concurrent_server_scans_limit = None
per_server_concurrent_connections_limit = None
if args_command_list.https_tunnel:
# All the connections will go through a single proxy; only scan one server at a time to not DOS the proxy
concurrent_server_scans_limit = 1
if args_command_list.slow_connection:
# Go easy on the servers; only open 2 concurrent connections against each server
per_server_concurrent_connections_limit = 2
# Figure out the scan commands that are enabled
scan_commands: Set[ScanCommandType] = set()
scan_commands_extra_arguments: ScanCommandExtraArgumentsDict = {}
for scan_command in ScanCommandsRepository.get_all_scan_commands():
cli_connector_cls = ScanCommandsRepository.get_implementation_cls(
scan_command).cli_connector_cls
is_scan_cmd_enabled, extra_args = cli_connector_cls.find_cli_options_in_command_line(
args_command_list.__dict__)
if is_scan_cmd_enabled:
scan_commands.add(scan_command)
if extra_args:
scan_commands_extra_arguments[
scan_command] = extra_args # type: ignore
return ParsedCommandLine(
invalid_servers=invalid_server_strings,
servers_to_scans=good_servers,
scan_commands=scan_commands,
scan_commands_extra_arguments=scan_commands_extra_arguments,
should_print_json_to_console=should_print_json_to_console,
json_path_out=json_path_out,
should_disable_console_output=args_command_list.quiet
or args_command_list.json_file == "-",
concurrent_server_scans_limit=concurrent_server_scans_limit,
per_server_concurrent_connections_limit=
per_server_concurrent_connections_limit,
)