# Author: Hubert Kario, (c) 2018
# Released under Gnu GPL v2.0, see LICENSE file for details

from __future__ import print_function
import traceback
import sys
import getopt
from itertools import chain
from random import sample

from tlsfuzzer.runner import Runner
from tlsfuzzer.messages import Connect, ClientHelloGenerator, \
        ClientKeyExchangeGenerator, ChangeCipherSpecGenerator, \
        FinishedGenerator, ApplicationDataGenerator, AlertGenerator, \
        ResetHandshakeHashes
from tlsfuzzer.expect import ExpectServerHello, ExpectCertificate, \
        ExpectServerHelloDone, ExpectChangeCipherSpec, ExpectFinished, \
        ExpectAlert, ExpectApplicationData, ExpectClose, \
        ExpectServerKeyExchange

from tlslite.constants import CipherSuite, AlertLevel, AlertDescription, \
        ExtensionType, GroupName
from tlslite.extensions import ALPNExtension, TLSExtension, \
        SupportedGroupsExtension, SignatureAlgorithmsExtension, \
        SignatureAlgorithmsCertExtension, RenegotiationInfoExtension
from tlsfuzzer.helpers import RSA_SIG_ALL


from tlsfuzzer.utils.lists import natural_sort_keys


version = 7


def help_msg():
    print("Usage: <script-name> [-h hostname] [-p port] [[probe-name] ...]")
    print(" -h hostname    name of the host to run the test against")
    print("                localhost by default")
    print(" -p port        port number to use for connection, 4433 by default")
    print(" -d             negotiate (EC)DHE instead of RSA key exchange")
    print(" probe-name     if present, will run only the probes with given")
    print("                names and not all of them, e.g \"sanity\"")
    print(" -e probe-name  exclude the probe from the list of the ones run")
    print("                may be specified multiple times")
    print(" -x probe-name  expect the probe to fail. When such probe passes despite being marked like this")
    print("                it will be reported in the test summary and the whole script will fail.")
    print("                May be specified multiple times.")
    print(" -X message     expect the `message` substring in exception raised during")
    print("                execution of preceding expected failure probe")
    print("                usage: [-x probe-name] [-X exception], order is compulsory!")
    print(" -n num         run 'num' or all(if 0) tests instead of default(all)")
    print("                (excluding \"sanity\" tests)")
    print(" --help         this message")


def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = str()
    dhe = False

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:d", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-d':
            dhe = True
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    # renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["secure renegotiation with GET after 2nd handshake"] = conversation

    # renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send incomplete GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info:None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # finish the GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["secure renegotiation with incomplete GET"] = conversation

    # insecure renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["insecure (legacy) renegotiation with GET after 2nd handshake"] = conversation

    # insecure renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send incomplete GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # finish the GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["insecure (legacy) renegotiation with incomplete GET"] = conversation

    # sending both SCSV and renegotiation_info: cold, then renegotiated
    conversation = Connect(host, port)
    node = conversation

    # Sending both is NOT RECOMMENDED, though valid, for the first handshake...
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # ... but not for the second handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["sending both SCSV and renegotiation_info in renegotiated handshake"] = conversation

    # sending both SCSV and renegotiation_info: cold, then renegotiated+resumed
    conversation = Connect(host, port)
    node = conversation

    # Sending both is NOT RECOMMENDED, though valid, for the first handshake...
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # ... but not for the second handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["sending both SCSV and renegotiation_info in renegotiation+resumption"] = conversation

    # non-empty initial renegotiation_info extension (with SCSV)
    conversation = Connect(host, port)
    node = conversation

    ext = {ExtensionType.renegotiation_info :
           RenegotiationInfoExtension().create(bytearray(b'abc'))}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["non-empty initial renegotiation_info extension (with SCSV)"] = conversation

    # non-empty initial renegotiation_info extension (without SCSV)
    conversation = Connect(host, port)
    node = conversation

    ext = {ExtensionType.renegotiation_info :
           RenegotiationInfoExtension().create(bytearray(b'abc'))}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["non-empty initial renegotiation_info extension (without SCSV)"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items() if
                          k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items() if
                         (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None

        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                        bad += 1
                        failed.append(c_name)
                        print("Expected error message: {0}\n"
                            .format(expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Check if the server supports insecure (legacy) renegotiation")

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
    print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed ,key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad or xpass:
        sys.exit(1)

if __name__ == "__main__":
    main()