def decode_config_envelope(config_envelope_bytes):
"""Decodes configuration envelope
Args:
config_envelope_bytes: byte of config envelope
Returns: deserialized config envelope
"""
config_envelope = {}
proto_config_envelope = configtx_pb2.ConfigEnvelope()
proto_config_envelope.ParseFromString(config_envelope_bytes)
config_envelope['config'] = decode_config(proto_config_envelope.config)
config_envelope['last_update'] = {}
proto_last_update = proto_config_envelope.last_update
if proto_last_update:
config_envelope['last_update']['payload'] = {}
proto_payload = common_pb2.Payload()
proto_payload.ParseFromString(proto_last_update.payload)
config_envelope['last_update']['payload']['header'] = \
decode_header(proto_payload.header)
config_envelope['last_update']['payload']['data'] = \
decode_config_update_envelope(proto_payload.data)
config_envelope['last_update']['signature'] = \
proto_last_update.signature
return config_envelope
def get_channel_config(self,
requestor,
channel_name,
peer_names,
decode=True):
"""
Get configuration block for the channel
:param requestor: User role who issue the request
:param channel_name: name of channel to query
:param peer_names: Names of the peers to query
:param deocode: Decode the response payload
:return: A `ChaincodeQueryResponse` or `ProposalResponse`
"""
peers = []
for peer_name in peer_names:
peer = self.get_peer(peer_name)
peers.append(peer)
channel = self.get_channel(channel_name)
tx_context = create_tx_context(requestor, ecies(), TXProposalRequest())
responses = channel.get_channel_config(tx_context, peers)
try:
if responses[0][0].response and decode:
_logger.debug('response status {}'.format(
responses[0][0].response.status))
block = common_pb2.Block()
block.ParseFromString(responses[0][0].response.payload)
envelope = common_pb2.Envelope()
envelope.ParseFromString(block.data.data[0])
payload = common_pb2.Payload()
payload.ParseFromString(envelope.payload)
config_envelope = configtx_pb2.ConfigEnvelope()
config_envelope.ParseFromString(payload.data)
return config_envelope
return responses[0][0]
except Exception:
_logger.error("Failed to get channel config block: {}",
sys.exc_info()[0])
raise
