def send_install_proposal(tx_context, peers):
"""Send install chaincode proposal
Args:
tx_context: transaction context
peers: peers to install chaincode
Returns: a set of proposal response
"""
if not tx_context:
raise ValueError("InstallProposalRequest is empty.")
if not peers:
raise ValueError("Please specify the peer.")
cc_deployment_spec = chaincode_pb2.ChaincodeDeploymentSpec()
cc_deployment_spec.chaincode_spec.type = \
chaincode_pb2.ChaincodeSpec.Type.Value(
proto_str(tx_context.tx_prop_req.cc_type))
cc_deployment_spec.chaincode_spec.chaincode_id.name = \
proto_str(tx_context.tx_prop_req.cc_name)
cc_deployment_spec.chaincode_spec.chaincode_id.path = \
proto_str(tx_context.tx_prop_req.cc_path)
cc_deployment_spec.chaincode_spec.chaincode_id.version = \
proto_str(tx_context.tx_prop_req.cc_version)
if not tx_context.tx_prop_req.packaged_cc:
cc_deployment_spec.code_package = \
package_chaincode(
tx_context.tx_prop_req.cc_path,
tx_context.tx_prop_req.cc_type)
else:
cc_deployment_spec.code_package = \
tx_context.tx_prop_req.packaged_cc
channel_header_extension = proposal_pb2.ChaincodeHeaderExtension()
channel_header_extension.chaincode_id.name = \
proto_str("lscc")
channel_header = build_channel_header(
common_pb2.ENDORSER_TRANSACTION, tx_context.tx_id, '',
current_timestamp(), tx_context.epoch,
channel_header_extension.SerializeToString())
header = build_header(tx_context.identity, channel_header,
tx_context.nonce)
cci_spec = chaincode_pb2.ChaincodeInvocationSpec()
cci_spec.chaincode_spec.type = \
chaincode_pb2.ChaincodeSpec.Type.Value(CC_TYPE_GOLANG)
cci_spec.chaincode_spec.chaincode_id.name = proto_str("lscc")
cci_spec.chaincode_spec.input.args.extend(
[proto_b(CC_INSTALL),
cc_deployment_spec.SerializeToString()])
proposal = build_cc_proposal(cci_spec, header,
tx_context.tx_prop_req.transient_map)
signed_proposal = sign_proposal(tx_context, proposal)
responses = [peer.send_proposal(signed_proposal) for peer in peers]
return responses, proposal, header
def join_channel(self, request):
"""
To join the peer to a channel.
Args:
request: the request to join a channel
Return:
True in sucess or False in failure
"""
_logger.debug('channel_join - start')
for key in ['targets', 'block', 'tx_context']:
if key not in request:
err_msg = "Missing parameter {}".format(key)
_logger.error('channel_join error: {}'.format(err_msg))
raise ValueError(err_msg)
chaincode_input = chaincode_pb2.ChaincodeInput()
chaincode_input.args.extend([proto_b("JoinChain"), request['block']])
chaincode_id = chaincode_pb2.ChaincodeID()
chaincode_id.name = proto_str("cscc")
cc_spec = create_cc_spec(chaincode_input, chaincode_id, 'GOLANG')
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(cc_spec)
tx_context = request['tx_context']
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = proto_str('cscc')
channel_header = build_channel_header(
common_pb2.HeaderType.Value('ENDORSER_TRANSACTION'),
tx_context.tx_id,
'',
current_timestamp(),
tx_context.epoch,
extension=extension.SerializeToString())
header = build_header(tx_context.identity, channel_header,
tx_context.nonce)
proposal = build_cc_proposal(cc_invoke_spec, header,
request['transient_map'])
try:
responses = send_transaction_proposal(proposal, tx_context,
request['targets'])
except Exception as e:
raise IOError("fail to send transanction proposal", e)
q = Queue(1)
result = True
for r in responses:
r.subscribe(on_next=lambda x: q.put(x),
on_error=lambda x: q.put(x))
res = q.get(timeout=5)
proposal_res = res[0]
result = result and (proposal_res.response.status == 200)
if result:
_logger.info("successfully join the peers")
return result
def _send_tx_proposal(channel_id,
tx_context,
peers,
cc_type=CC_TYPE_GOLANG):
request = tx_context.tx_prop_req
args = []
if request.fcn:
args.append(proto_b(request.fcn))
else:
args.append(proto_b(CC_INVOKE))
for arg in request.args:
if isinstance(arg, bytes):
args.append(arg)
else:
args.append(proto_b(arg))
cc_id = chaincode_pb2.ChaincodeID()
cc_id.name = request.cc_name
if request.prop_type not in (CC_QUERY, CC_INVOKE):
cc_id.version = request.cc_version
cc_input = chaincode_pb2.ChaincodeInput()
cc_input.args.extend(args)
cc_spec = chaincode_pb2.ChaincodeSpec()
cc_spec.type = chaincode_pb2.ChaincodeSpec.Type.Value(cc_type)
cc_spec.chaincode_id.CopyFrom(cc_id)
cc_spec.input.CopyFrom(cc_input)
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = request.cc_name
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(cc_spec)
channel_header = build_channel_header(
common_pb2.ENDORSER_TRANSACTION,
tx_context.tx_id,
channel_id,
current_timestamp(),
tx_context.epoch,
extension=extension.SerializeToString())
header = build_header(tx_context.identity, channel_header,
tx_context.nonce)
# chaincode real proposal
proposal = build_cc_proposal(cc_invoke_spec, header,
request.transient_map)
signed_proposal = utils.sign_proposal(tx_context, proposal)
responses = [peer.send_proposal(signed_proposal) for peer in peers]
# chaincode proposal without transient map
# https://jira.hyperledger.org/browse/FAB-12536?focusedCommentId=52438&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-52438 # noqa
proposal = build_cc_proposal(cc_invoke_spec, header, None)
return responses, proposal, header
def _send_tx_proposal(channel_id, tx_context, peers):
request = tx_context.tx_prop_req
args = []
if request.fcn:
args.append(proto_b(request.fcn))
else:
args.append(proto_b(CC_INVOKE))
for arg in request.args:
if isinstance(arg, bytes):
args.append(arg)
else:
args.append(proto_b(arg))
cc_id = chaincode_pb2.ChaincodeID()
cc_id.name = request.cc_name
if request.prop_type != CC_QUERY:
cc_id.version = request.cc_version
cc_input = chaincode_pb2.ChaincodeInput()
cc_input.args.extend(args)
cc_spec = chaincode_pb2.ChaincodeSpec()
cc_spec.type = chaincode_pb2.ChaincodeSpec.Type.Value(CC_TYPE_GOLANG)
cc_spec.chaincode_id.CopyFrom(cc_id)
cc_spec.input.CopyFrom(cc_input)
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = request.cc_name
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(cc_spec)
channel_header = build_channel_header(
common_pb2.ENDORSER_TRANSACTION,
tx_context.tx_id,
channel_id,
current_timestamp(),
tx_context.epoch,
extension=extension.SerializeToString())
header = build_header(tx_context.identity, channel_header,
tx_context.nonce)
proposal = build_cc_proposal(cc_invoke_spec, header,
request.transient_map)
signed_proposal = utils.sign_proposal(tx_context, proposal)
send_executions = [
peer.send_proposal(signed_proposal) for peer in peers
]
return rx.Observable.merge(send_executions).to_iterable() \
.map(lambda responses: (responses, proposal, header))
def join_channel(self, request):
"""
To join the peer to a channel.
Args:
request: the request to join a channel
Return:
A coroutine to handle thanks to asyncio with
await asyncio.gather(*responses)
"""
_logger.debug('channel_join - start')
for key in ['targets', 'block', 'tx_context']:
if key not in request:
err_msg = "Missing parameter {}".format(key)
_logger.error('channel_join error: {}'.format(err_msg))
raise ValueError(err_msg)
chaincode_input = chaincode_pb2.ChaincodeInput()
chaincode_input.args.extend([proto_b("JoinChain"), request['block']])
chaincode_id = chaincode_pb2.ChaincodeID()
chaincode_id.name = proto_str("cscc")
cc_spec = create_cc_spec(chaincode_input, chaincode_id, 'GOLANG')
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(cc_spec)
tx_context = request['tx_context']
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = proto_str('cscc')
channel_header = build_channel_header(
common_pb2.HeaderType.Value('ENDORSER_TRANSACTION'),
tx_context.tx_id,
'',
current_timestamp(),
tx_context.epoch,
extension=extension.SerializeToString())
header = build_header(tx_context.identity,
channel_header,
tx_context.nonce)
proposal = build_cc_proposal(cc_invoke_spec,
header,
request['transient_map'])
return send_transaction_proposal(proposal,
tx_context,
request['targets'])
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 _send_cc_proposal(self, tx_context, command, peers):
args = []
request = tx_context.tx_prop_req
args.append(proto_b(request.fcn))
for arg in request.args:
args.append(proto_b(arg))
# construct the deployment spec
cc_id = chaincode_pb2.ChaincodeID()
cc_id.name = request.cc_name
cc_id.version = request.cc_version
cc_input = chaincode_pb2.ChaincodeInput()
cc_input.args.extend(args)
cc_spec = create_cc_spec(cc_input, cc_id, CC_TYPE_GOLANG)
cc_dep_spec = chaincode_pb2.ChaincodeDeploymentSpec()
cc_dep_spec.chaincode_spec.CopyFrom(cc_spec)
cc_dep_spec.effective_date.seconds = \
tx_context.tx_prop_req.effective_date.seconds
cc_dep_spec.effective_date.nanos = \
tx_context.tx_prop_req.effective_date.nanos
# construct the invoke spec
# TODO: if the policy not provided, new one should be built.
if request.cc_endorsement_policy:
policy = request.cc_endorsement_policy
else:
policy = ''
invoke_input = chaincode_pb2.ChaincodeInput()
invoke_input.args.extend([
proto_b(command),
proto_b(self.name),
cc_dep_spec.SerializeToString(),
proto_b(policy),
proto_b('escc'),
proto_b('vscc')
])
invoke_cc_id = chaincode_pb2.ChaincodeID()
invoke_cc_id.name = proto_str('lscc')
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(
create_cc_spec(invoke_input, invoke_cc_id, CC_TYPE_GOLANG))
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = proto_str('lscc')
channel_header = build_channel_header(
common_pb2.ENDORSER_TRANSACTION,
tx_context.tx_id,
self.name,
current_timestamp(),
epoch=0,
extension=extension.SerializeToString())
header = build_header(tx_context.identity, channel_header,
tx_context.nonce)
proposal = build_cc_proposal(cc_invoke_spec, header,
request.transient_map)
signed_proposal = utils.sign_proposal(tx_context, proposal)
send_executions = [
peer.send_proposal(signed_proposal) for peer in peers
]
return rx.Observable.merge(send_executions).to_iterable() \
.map(lambda responses: (responses, proposal, header))
def send_install_proposal(self, tx_context, peers=None, scheduler=None):
""" Send install chaincode proposal
Args:
schedule: Rx schedule
install_proposal_req: install proposal request
targets: a set of peer to send
Returns: a set of proposal response
"""
if peers is None:
targets = self._peers.values()
else:
targets = peers
# self._validate_state() # TODO: enable this later
# self._validate_peers(targets) # TODO: enable this later
if not tx_context:
raise ValueError("InstallProposalRequest is null.")
cc_deployment_spec = chaincode_pb2.ChaincodeDeploymentSpec()
cc_deployment_spec.chaincode_spec.type = \
chaincode_pb2.ChaincodeSpec.Type.Value(
proto_str(tx_context.tx_prop_req.cc_type))
cc_deployment_spec.chaincode_spec.chaincode_id.name = \
proto_str(tx_context.tx_prop_req.cc_name)
cc_deployment_spec.chaincode_spec.chaincode_id.path = \
proto_str(tx_context.tx_prop_req.cc_path)
cc_deployment_spec.chaincode_spec.chaincode_id.version = \
proto_str(tx_context.tx_prop_req.cc_version)
if not self._is_dev_mode:
if not tx_context.tx_prop_req.packaged_cc:
cc_deployment_spec.code_package = \
self._package_chaincode(
tx_context.tx_prop_req.cc_path,
tx_context.tx_prop_req.cc_type)
else:
cc_deployment_spec.code_package = \
tx_context.tx_prop_req.packaged_cc
cc_deployment_spec.effective_date.seconds = \
tx_context.tx_prop_req.effective_date.seconds
cc_deployment_spec.effective_date.nanos = \
tx_context.tx_prop_req.effective_date.nanos
channel_header_extension = proposal_pb2.ChaincodeHeaderExtension()
channel_header_extension.chaincode_id.name = \
proto_str("lscc")
channel_header = utils.build_channel_header(
common_pb2.ENDORSER_TRANSACTION, tx_context.tx_id, '',
utils.current_timestamp(), tx_context.epoch,
channel_header_extension.SerializeToString())
header = utils.build_header(tx_context.identity, channel_header,
tx_context.nonce)
cci_spec = chaincode_pb2.ChaincodeInvocationSpec()
cci_spec.chaincode_spec.type = \
chaincode_pb2.ChaincodeSpec.Type.Value(CC_TYPE_GOLANG)
cci_spec.chaincode_spec.chaincode_id.name = proto_str("lscc")
cci_spec.chaincode_spec.input.args.extend(
[proto_b(CC_INSTALL),
cc_deployment_spec.SerializeToString()])
proposal = utils.build_cc_proposal(
cci_spec, header, tx_context.tx_prop_req.transient_map)
signed_proposal = utils.sign_proposal(tx_context, proposal)
send_executions = [
peer.send_proposal(signed_proposal, scheduler) for peer in targets
]
return rx.Observable.merge(send_executions).to_iterable() \
.map(lambda responses: (responses, proposal, header))
def _send_cc_proposal(self, tx_context, command, peers):
args = []
request = tx_context.tx_prop_req
args.append(proto_b(request.fcn))
for arg in request.args:
args.append(proto_b(arg))
# construct the deployment spec
cc_id = chaincode_pb2.ChaincodeID()
cc_id.name = request.cc_name
cc_id.version = request.cc_version
cc_input = chaincode_pb2.ChaincodeInput()
cc_input.args.extend(args)
cc_spec = create_cc_spec(cc_input, cc_id, CC_TYPE_GOLANG)
cc_dep_spec = chaincode_pb2.ChaincodeDeploymentSpec()
cc_dep_spec.chaincode_spec.CopyFrom(cc_spec)
# Pass msps, TODO create an MSPManager as done in fabric-sdk-node
policy = self._build_policy(request.cc_endorsement_policy)
args = [
proto_b(command),
proto_b(self.name),
cc_dep_spec.SerializeToString(),
policy,
proto_b('escc'),
proto_b('vscc'),
]
# collections_configs need V1_2 or later capability enabled,
# otherwise private channel collections and data are not available
collections_configs = []
if request.collections_config:
for config in request.collections_config:
static_config = collection_pb2.StaticCollectionConfig()
static_config.name = config['name']
static_config.member_orgs_policy.signature_policy. \
CopyFrom(self._build_policy(config['policy'],
returnProto=True))
static_config.maximum_peer_count = config['maxPeerCount']
static_config. \
required_peer_count = config.get('requiredPeerCount', 0)
static_config.block_to_live = config.get('blockToLive', 0)
static_config.member_only_read = config.get(
'memberOnlyRead', False)
collections_config = collection_pb2.CollectionConfig()
collections_config.static_collection_config.CopyFrom(
static_config)
collections_configs.append(collections_config)
cc_coll_cfg = collection_pb2.CollectionConfigPackage()
cc_coll_cfg.config.extend(collections_configs)
args.append(cc_coll_cfg.SerializeToString())
# construct the invoke spec
invoke_input = chaincode_pb2.ChaincodeInput()
invoke_input.args.extend(args)
invoke_cc_id = chaincode_pb2.ChaincodeID()
invoke_cc_id.name = proto_str('lscc')
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(
create_cc_spec(invoke_input, invoke_cc_id, CC_TYPE_GOLANG))
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = proto_str('lscc')
channel_header = build_channel_header(
common_pb2.ENDORSER_TRANSACTION,
tx_context.tx_id,
self.name,
current_timestamp(),
epoch=0,
extension=extension.SerializeToString())
header = build_header(tx_context.identity, channel_header,
tx_context.nonce)
proposal = build_cc_proposal(cc_invoke_spec, header,
request.transient_map)
signed_proposal = utils.sign_proposal(tx_context, proposal)
response = [peer.send_proposal(signed_proposal) for peer in peers]
return response, proposal, header
def send_install_proposal(self, tx_context, peers=None):
"""Send install chaincode proposal
:param install_proposal_req: install proposal request
:param targets: a set of peer to send
:param tx_context: a tx_context instance
:param peers: peers (Default value = None)
:return: a set of proposal response
"""
if peers is None:
targets = self._peers.values()
else:
targets = peers
# self._validate_state() # TODO: enable this later
# self._validate_peers(targets) # TODO: enable this later
if not tx_context:
raise ValueError("InstallProposalRequest is null.")
cc_deployment_spec = chaincode_pb2.ChaincodeDeploymentSpec()
cc_deployment_spec.chaincode_spec.type = \
chaincode_pb2.ChaincodeSpec.Type.Value(
utils.proto_str(tx_context.tx_prop_req.cc_type))
cc_deployment_spec.chaincode_spec.chaincode_id.name = \
proto_str(tx_context.tx_prop_req.cc_name)
cc_deployment_spec.chaincode_spec.chaincode_id.path = \
proto_str(tx_context.tx_prop_req.cc_path)
cc_deployment_spec.chaincode_spec.chaincode_id.version = \
proto_str(tx_context.tx_prop_req.cc_version)
if not self._is_dev_mode:
if not tx_context.tx_prop_req.packaged_cc:
cc_deployment_spec.code_package = \
package_chaincode(
tx_context.tx_prop_req.cc_path,
tx_context.tx_prop_req.cc_type)
else:
cc_deployment_spec.code_package = \
tx_context.tx_prop_req.packaged_cc
channel_header_extension = proposal_pb2.ChaincodeHeaderExtension()
channel_header_extension.chaincode_id.name = \
proto_str("lscc")
channel_header = utils.build_channel_header(
common_pb2.ENDORSER_TRANSACTION,
tx_context.tx_id,
'',
utils.current_timestamp(),
tx_context.epoch,
channel_header_extension.SerializeToString()
)
header = utils.build_header(tx_context.identity,
channel_header,
tx_context.nonce)
cci_spec = chaincode_pb2.ChaincodeInvocationSpec()
cci_spec.chaincode_spec.type = \
chaincode_pb2.ChaincodeSpec.Type.Value(CC_TYPE_GOLANG)
cci_spec.chaincode_spec.chaincode_id.name = proto_str("lscc")
cci_spec.chaincode_spec.input.args.extend(
[proto_b(CC_INSTALL), cc_deployment_spec.SerializeToString()])
proposal = utils.build_cc_proposal(
cci_spec, header,
tx_context.tx_prop_req.transient_map)
signed_proposal = utils.sign_proposal(tx_context, proposal)
responses = [peer.send_proposal(signed_proposal)
for peer in targets]
return responses, proposal, header
def _send_cc_proposal(self, tx_context, command, peers):
args = []
request = tx_context.tx_prop_req
args.append(proto_b(request.fcn))
for arg in request.args:
args.append(proto_b(arg))
# construct the deployment spec
cc_id = chaincode_pb2.ChaincodeID()
cc_id.name = request.cc_name
cc_id.version = request.cc_version
cc_input = chaincode_pb2.ChaincodeInput()
cc_input.args.extend(args)
cc_spec = create_cc_spec(cc_input, cc_id, CC_TYPE_GOLANG)
cc_dep_spec = chaincode_pb2.ChaincodeDeploymentSpec()
cc_dep_spec.chaincode_spec.CopyFrom(cc_spec)
# Pass msps, TODO create an MSPManager as done in fabric-sdk-node
policy = self._build_policy(request.cc_endorsement_policy)
# construct the invoke spec
invoke_input = chaincode_pb2.ChaincodeInput()
invoke_input.args.extend(
[proto_b(command),
proto_b(self.name),
cc_dep_spec.SerializeToString(),
policy,
proto_b('escc'),
proto_b('vscc')])
invoke_cc_id = chaincode_pb2.ChaincodeID()
invoke_cc_id.name = proto_str('lscc')
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(create_cc_spec(invoke_input,
invoke_cc_id,
CC_TYPE_GOLANG)
)
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = proto_str('lscc')
channel_header = build_channel_header(
common_pb2.ENDORSER_TRANSACTION,
tx_context.tx_id,
self.name,
current_timestamp(),
epoch=0,
extension=extension.SerializeToString()
)
header = build_header(tx_context.identity,
channel_header,
tx_context.nonce)
proposal = build_cc_proposal(
cc_invoke_spec,
header,
request.transient_map)
signed_proposal = utils.sign_proposal(tx_context, proposal)
response = [peer.send_proposal(signed_proposal)
for peer in peers]
return response, proposal, header
def _send_cc_proposal(self, tx_context, command, peers):
args = []
request = tx_context.tx_prop_req
args.append(proto_b(request.fcn))
for arg in request.args:
args.append(proto_b(arg))
# construct the deployment spec
cc_id = chaincode_pb2.ChaincodeID()
cc_id.name = request.cc_name
cc_id.version = request.cc_version
cc_input = chaincode_pb2.ChaincodeInput()
cc_input.args.extend(args)
cc_spec = create_cc_spec(cc_input, cc_id, CC_TYPE_GOLANG)
cc_dep_spec = chaincode_pb2.ChaincodeDeploymentSpec()
cc_dep_spec.chaincode_spec.CopyFrom(cc_spec)
cc_dep_spec.effective_date.seconds = \
tx_context.tx_prop_req.effective_date.seconds
cc_dep_spec.effective_date.nanos = \
tx_context.tx_prop_req.effective_date.nanos
# construct the invoke spec
# TODO: if the policy not provided, new one should be built.
if request.cc_endorsement_policy:
policy = request.cc_endorsement_policy
else:
policy = ''
invoke_input = chaincode_pb2.ChaincodeInput()
invoke_input.args.extend([
proto_b(command),
proto_b(self.name),
cc_dep_spec.SerializeToString(),
proto_b(policy),
proto_b('escc'),
proto_b('vscc')
])
invoke_cc_id = chaincode_pb2.ChaincodeID()
invoke_cc_id.name = proto_str('lscc')
cc_invoke_spec = chaincode_pb2.ChaincodeInvocationSpec()
cc_invoke_spec.chaincode_spec.CopyFrom(
create_cc_spec(invoke_input, invoke_cc_id, CC_TYPE_GOLANG))
extension = proposal_pb2.ChaincodeHeaderExtension()
extension.chaincode_id.name = proto_str('lscc')
channel_header = build_channel_header(
common_pb2.ENDORSER_TRANSACTION,
tx_context.tx_id,
self.name,
current_timestamp(),
epoch=0,
extension=extension.SerializeToString())
header = build_header(tx_context.identity, channel_header,
tx_context.nonce)
proposal = build_cc_proposal(cc_invoke_spec, header,
request.transient_map)
try:
responses = send_transaction_proposal(proposal, header, tx_context,
peers)
except Exception as e:
raise IOError("fail to send transanction proposal", e)
q = Queue(1)
result = True
for r in responses:
r.subscribe(on_next=lambda x: q.put(x),
on_error=lambda x: q.put(x))
res, _ = q.get()
result = result and (res.response.status == 200)
return result
