def generate(self, state):
if self.version is None:
self.version = state.client_version
if self.random:
state.client_random = self.random
if self.session_id is None:
self.session_id = state.session_id
if not state.client_random:
state.client_random = bytearray(32)
extensions = None
if self.extensions is not None:
extensions = self._generate_extensions(state)
clnt_hello = ClientHello(self.ssl2).create(self.version,
state.client_random,
self.session_id,
self.ciphers,
extensions=extensions)
clnt_hello.compression_methods = self.compression
state.client_version = self.version
self.msg = clnt_hello
return clnt_hello
def generate(self, state):
if self.version is None:
self.version = state.client_version
if self.random:
state.client_random = self.random
if self.session_id is None:
self.session_id = state.session_id
if not state.client_random:
state.client_random = bytearray(32)
extensions = None
if self.extensions is not None:
extensions = self._generate_extensions(state)
clnt_hello = ClientHello().create(self.version,
state.client_random,
self.session_id,
self.ciphers,
extensions=extensions)
clnt_hello.compression_methods = self.compression
state.client_version = self.version
self.msg = clnt_hello
return clnt_hello
def __call__(self, hostname):
"""Generate a client hello object, use hostname in SNI extension."""
# SNI is special in that we don't want to send it if it is empty
if self.extensions:
sni = next((x for x in self.extensions
if isinstance(x, SNIExtension)),
None)
if sni:
if hostname is not None:
if sni.serverNames is None:
sni.serverNames = []
sni.hostNames = [hostname]
else:
# but if we were not provided with a host name, we want
# to remove empty extension
if sni.serverNames is None:
self.extensions = [x for x in self.extensions
if not isinstance(x, SNIExtension)]
if self.random:
rand = self.random
else:
# we're not doing any crypto with it, just need "something"
# TODO: place unix time at the beginning
rand = numberToByteArray(random.getrandbits(256), 32)
ch = ClientHello(self.ssl2).create(self.version, rand, self.session_id,
self.ciphers,
extensions=self.extensions)
ch.compression_methods = self.compression_methods
for cb in self.callbacks:
ch = cb(ch)
return ch
def __call__(self, hostname):
"""Generate a client hello object, use hostname in SNI extension."""
# SNI is special in that we don't want to send it if it is empty
if self.extensions:
sni = next(
(x for x in self.extensions if isinstance(x, SNIExtension)),
None)
if sni:
if hostname is not None:
if sni.serverNames is None:
sni.serverNames = []
sni.hostNames = [hostname]
else:
# but if we were not provided with a host name, we want
# to remove empty extension
if sni.serverNames is None:
self.extensions = [
x for x in self.extensions
if not isinstance(x, SNIExtension)
]
if self.random:
rand = self.random
else:
# we're not doing any crypto with it, just need "something"
# TODO: place unix time at the beginning
rand = numberToByteArray(random.getrandbits(256), 32)
ch = ClientHello(self.ssl2).create(self.version,
rand,
self.session_id,
self.ciphers,
extensions=self.extensions)
ch.compression_methods = self.compression_methods
for cb in self.callbacks:
ch = cb(ch)
return ch
