def parse(cls, detail_string):
"""Parse a string represention of Credentials."""
split = detail_string.split(':')
if len(split) != 4:
raise exceptions.InvalidCredentialsError('invalid credentials')
ltpk = binascii.unhexlify(split[0])
ltsk = binascii.unhexlify(split[1])
atv_id = binascii.unhexlify(split[2])
client_id = binascii.unhexlify(split[3])
return Credentials(ltpk, ltsk, atv_id, client_id)
def _get_auth_type(self) -> AuthenticationType:
if (self.ltpk == b"" and self.ltsk == b"" and self.atv_id == b""
and self.client_id == b""):
return AuthenticationType.Null
if self.ltpk == b"transient":
return AuthenticationType.Transient
if (self.ltpk == b"" and self.ltsk != b"" and self.atv_id == b""
and self.client_id != b""):
return AuthenticationType.Legacy
if self.ltpk and self.ltsk and self.atv_id and self.client_id:
return AuthenticationType.HAP
raise exceptions.InvalidCredentialsError("invalid credentials type")
def _get_credentials(self):
if not self.service or self.service.credentials is None:
_LOGGER.debug("No AirPlay credentials loaded")
return None
if not re.match(r"[0-9A-Fa-f]{16}:[0-9A-Fa-f]{64}", self.service.credentials):
raise exceptions.InvalidCredentialsError(
f"invalid credentials: {self.service.credentials}"
)
split = self.service.credentials.split(":")
_LOGGER.debug("Loaded AirPlay credentials: %s", self.service.credentials)
return split[1]
def _mkurl(self, cmd, *args, session=True, login_id=False):
url = "{}".format(cmd.format(*args))
parameters = []
if login_id:
if re.match(r"0x[0-9A-Fa-f]{16}", self._login_id):
parameters.append("pairing-guid={}".format(self._login_id))
elif re.match(
r"[0-9A-Fa-f]{8}-([0-9A-Fa-f]{4}-){3}[0-9A-Fa-f]{12}",
self._login_id):
parameters.append("hsgid={}".format(self._login_id))
else:
raise exceptions.InvalidCredentialsError(
"invalid credentials: " + self._login_id)
if session:
parameters.insert(0, "session-id={}".format(self._session_id))
return url.replace("[AUTH]", "&".join(parameters))
def parse_credentials(detail_string: Optional[str]) -> HapCredentials:
"""Parse a string represention of HapCredentials."""
if detail_string is None:
return NO_CREDENTIALS
split = detail_string.split(":")
# Compatibility with "legacy credentials" used by AirPlay where seed is stored
# as LTSK and identifier as client_id (others are empty).
if len(split) == 2:
client_id = binascii.unhexlify(split[0])
ltsk = binascii.unhexlify(split[1])
return HapCredentials(b"", ltsk, b"", client_id)
if len(split) == 4:
ltpk = binascii.unhexlify(split[0])
ltsk = binascii.unhexlify(split[1])
atv_id = binascii.unhexlify(split[2])
client_id = binascii.unhexlify(split[3])
return HapCredentials(ltpk, ltsk, atv_id, client_id)
raise exceptions.InvalidCredentialsError("invalid credentials: " +
detail_string)