def _build_channel_header(type,
tx_id,
channel_id,
timestamp,
epoch=0,
extension=None):
"""Build channel.
Args:
extension: extension
timestamp: timestamp
channel_id: channel id
tx_id: transaction id
type: type
epoch: epoch
Returns: common_proto.Header instance
"""
channel_header = common_pb2.ChannelHeader()
channel_header.type = type
channel_header.version = 1
channel_header.channel_id = proto_str(channel_id)
channel_header.tx_id = proto_str(tx_id)
channel_header.epoch = epoch
channel_header.timestamp = timestamp
if extension:
channel_header.extension = extension
return channel_header
def build_channel_header(type, tx_id, channel_id,
timestamp, epoch=0, extension=None):
"""Build channel header.
Args:
type (common_pb2.HeaderType): type
tx_id (str): transaction id
channel_id (str): channel id
timestamp (grpc.timestamp): timestamp
epoch (int): epoch
extension: extension
Returns:
common_proto.Header instance
"""
channel_header = common_pb2.ChannelHeader()
channel_header.type = type
channel_header.version = 1
channel_header.channel_id = proto_str(channel_id)
channel_header.tx_id = proto_str(tx_id)
channel_header.epoch = epoch
channel_header.timestamp.CopyFrom(timestamp)
if extension:
channel_header.extension = extension
return channel_header
def _build_channel_header(type,
tx_id,
channel_id,
timestamp,
epoch=0,
extension=None):
"""Build channel.
:param extension: extension (Default value = None)
:param timestamp: timestamp
:param channel_id: channel id
:param tx_id: transaction id
:param type: type
:param epoch: epoch
:return: common_proto.Header instance (Default value = 0)
"""
channel_header = common_pb2.ChannelHeader()
channel_header.type = type
channel_header.version = 1
channel_header.channel_id = proto_str(channel_id)
channel_header.tx_id = proto_str(tx_id)
channel_header.epoch = epoch
channel_header.timestamp = timestamp
if extension:
channel_header.extension = extension
return channel_header
def decode_channel_header(header_bytes):
"""Decodes channel header for Payload channel header
:param header_bytes: Bytes channel header
:return: deserialized payload channel_header
:type header_bytes: str
"""
channel_header = {}
proto_channel_header = common_pb2.ChannelHeader()
proto_channel_header.ParseFromString(header_bytes)
channel_header['type'] = proto_channel_header.type
channel_header['version'] = decode_version(proto_channel_header.version)
channel_header['timestamp'] = \
timestamp_to_date(proto_channel_header.timestamp)
channel_header['channel_id'] = proto_channel_header.channel_id
channel_header['tx_id'] = proto_channel_header.tx_id
channel_header['epoch'] = proto_channel_header.epoch
channel_header['extension'] = proto_channel_header.extension
return channel_header
def build_header(creator,
nonce,
tran_prop_type,
chain,
prop_type,
epoch=0,
chaincode_id=None):
"""Build a header for transaction proposal.
Args:
prop_type: prop type
creator: user
nonce: nonce
tran_prop_type: transaction proposal type
chain: chain instance
epoch: epoch
chaincode_id: chaincode id
Returns: common_proto.Header instance
"""
header = common_pb2.Header()
signature_header = common_pb2.SignatureHeader()
signature_header.creator = creator.serialize()
signature_header.nonce = nonce
header.signature_header = signature_header.SerializeToString()
channel_header = common_pb2.ChannelHeader()
channel_header.type = tran_prop_type
channel_header.version = 1
if prop_type != CC_INSTALL:
channel_header.channel_id = proto_str(chain.name)
channel_header.tx_id = proto_str(chain.generate_tx_id(nonce, creator))
channel_header.epoch = epoch
if chaincode_id:
header_ext = proposal_pb2.ChaincodeHeaderExtension()
header_ext.chaincode_id.name = proto_str(chaincode_id)
channel_header.extension = header_ext.SerializeToString()
header.channel_header = channel_header.SerializeToString()
return header
def build_channel_header(type,
tx_id,
channel_id,
timestamp,
epoch=0,
extension=None,
tls_cert_hash=None):
"""Build channel header.
:param type: type
:type type: common_pb2.HeaderType
:param tx_id: transaction id
:type tx_id: str
:param channel_id: channel id
:type channel_id: str
:param timestamp: timestamp
:type timestamp: grpc.timestamp
:param epoch: epoch (Default value = 0)
:type epoch: int
:param extension: extension (Default value = None)
:param tls_cert_hash: (Default value = None)
:return: common_proto.Header instance
"""
channel_header = common_pb2.ChannelHeader()
channel_header.type = type
channel_header.version = 1
channel_header.channel_id = proto_str(channel_id)
channel_header.tx_id = proto_str(tx_id)
channel_header.epoch = epoch
channel_header.timestamp.CopyFrom(timestamp)
if tls_cert_hash:
channel_header.tls_cert_hash = tls_cert_hash
if extension:
channel_header.extension = extension
return channel_header
