def createInvokeProposalForBDD(context, ccSpec, chainID, signersCert, Mspid, type):
import binascii
"Returns a deployment proposal of chaincode type"
lc_chaincode_invocation_spec = chaincode_pb2.ChaincodeInvocationSpec(chaincode_spec = ccSpec)
# Create
ccHdrExt = proposal_pb2.ChaincodeHeaderExtension(chaincode_id=ccSpec.chaincode_id)
ccProposalPayload = proposal_pb2.ChaincodeProposalPayload(input=lc_chaincode_invocation_spec.SerializeToString())
serializedIdentity = identities_pb2.SerializedIdentity(mspid=Mspid, id_bytes=crypto.dump_certificate(crypto.FILETYPE_PEM, signersCert))
nonce = bootstrap_util.BootstrapHelper.getNonce()
sigHdr = bootstrap_util.make_signature_header(serializedIdentity.SerializeToString(), nonce)
# Calculate the transaction ID
tx_id = binascii.hexlify(bootstrap_util.computeCryptoHash(nonce + serializedIdentity.SerializeToString()))
chainHdr = bootstrap_util.make_chain_header(type=common_dot_common_pb2.HeaderType.Value(type), channel_id=chainID,
txID=tx_id,
extension=ccHdrExt.SerializeToString())
header = common_dot_common_pb2.Header(channel_header=chainHdr.SerializeToString(), signature_header=sigHdr.SerializeToString())
# make proposal
proposal = proposal_pb2.Proposal(header=header.SerializeToString(), payload=ccProposalPayload.SerializeToString())
return proposal
def createSignedTx(user, signed_proposal, proposal_responses):
assert len(proposal_responses) > 0, "Expected at least 1 ProposalResponse"
#Unpack signed proposal
proposal = proposal_pb2.Proposal()
proposal.ParseFromString(signed_proposal.proposal_bytes)
header = common_dot_common_pb2.Header()
header.ParseFromString(proposal.header)
ccProposalPayload = proposal_pb2.ChaincodeProposalPayload()
ccProposalPayload.ParseFromString(proposal.payload)
# Be sure to clear the TransientMap
ccProposalPayload.TransientMap.clear()
endorsements = [p.endorsement for p in proposal_responses]
ccEndorsedAction = transaction_pb2.ChaincodeEndorsedAction(
proposal_response_payload=proposal_responses[0].payload,
endorsements=endorsements)
ccActionPayload = transaction_pb2.ChaincodeActionPayload(
chaincode_proposal_payload=ccProposalPayload.SerializeToString(),
action=ccEndorsedAction)
transaction = transaction_pb2.Transaction()
action = transaction.actions.add()
action.header = header.signature_header
action.payload = ccActionPayload.SerializeToString()
payload = common_dot_common_pb2.Payload(
header=header, data=transaction.SerializeToString())
payloadBytes = payload.SerializeToString()
signature = user.sign(payloadBytes)
envelope = common_dot_common_pb2.Envelope(payload=payloadBytes,
signature=signature)
return envelope
def createInvokeProposalForBDD(ccSpec, chainID, signersCert, Mspid, type): "Returns a deployment proposal of chaincode type" lc_chaincode_invocation_spec = chaincode_pb2.ChaincodeInvocationSpec(chaincodeSpec = ccSpec) # Create ccHdrExt = chaincode_proposal_pb2.ChaincodeHeaderExtension(chaincodeID=ccSpec.chaincodeID) ccProposalPayload = chaincode_proposal_pb2.ChaincodeProposalPayload(Input=lc_chaincode_invocation_spec.SerializeToString()) bootstrapHelper = bootstrap_util.BootstrapHelper(chainId=chainID) chainHdr = bootstrapHelper.makeChainHeader(type=common_dot_common_pb2.HeaderType.Value(type), txID=bootstrap_util.GetUUID(), extension=ccHdrExt.SerializeToString()) serializedIdentity = identities_pb2.SerializedIdentity(Mspid=Mspid, IdBytes=crypto.dump_certificate(crypto.FILETYPE_PEM, signersCert)) sigHdr = bootstrapHelper.makeSignatureHeader(serializedIdentity.SerializeToString(), bootstrap_util.BootstrapHelper.getNonce()) header = common_dot_common_pb2.Header(chainHeader=chainHdr, signatureHeader=sigHdr) # make proposal proposal = proposal_pb2.Proposal(header=header.SerializeToString(), payload=ccProposalPayload.SerializeToString()) return proposal