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(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 createGenesisBlock(context, chainId, networkConfigPolicy, consensusType):
'Generates the genesis block for starting the oderers and for use in the chain config transaction by peers'
#assert not "bootstrapGenesisBlock" in context,"Genesis block already created:\n{0}".format(context.bootstrapGenesisBlock)
directory = getDirectory(context)
assert len(
directory.ordererAdminTuples) > 0, "No orderer admin tuples defined!!!"
bootstrapHelper = BootstrapHelper(chainId=chainId,
consensusType=consensusType)
configItems = []
configItems.append(bootstrapHelper.encodeBatchSize())
configItems.append(bootstrapHelper.encodeConsensusType())
configItems.append(bootstrapHelper.encodeChainCreators())
configItems.append(bootstrapHelper.encodeAcceptAllPolicy())
configItems.append(bootstrapHelper.lockDefaultModificationPolicy())
configEnvelope = common_dot_configuration_pb2.ConfigurationEnvelope(
Items=configItems)
payloadChainHeader = bootstrapHelper.makeChainHeader(
type=common_dot_common_pb2.HeaderType.Value(
"CONFIGURATION_TRANSACTION"))
#Now the SignatureHeader
serializedCreatorCertChain = None
nonce = None
payloadSignatureHeader = common_dot_common_pb2.SignatureHeader(
creator=serializedCreatorCertChain,
nonce=bootstrapHelper.getNonce(),
)
payloadHeader = common_dot_common_pb2.Header(
chainHeader=payloadChainHeader,
signatureHeader=payloadSignatureHeader,
)
payload = common_dot_common_pb2.Payload(
header=payloadHeader, data=configEnvelope.SerializeToString())
envelope = common_dot_common_pb2.Envelope(
payload=payload.SerializeToString(), signature=None)
blockData = common_dot_common_pb2.BlockData(
Data=[envelope.SerializeToString()])
block = common_dot_common_pb2.Block(
Header=common_dot_common_pb2.BlockHeader(
Number=0,
PreviousHash=None,
DataHash=bootstrapHelper.computeBlockDataHash(blockData),
),
Data=blockData,
Metadata=None,
)
# Add this back once crypto certs are required
for nodeAdminTuple in directory.ordererAdminTuples:
userCert = directory.ordererAdminTuples[nodeAdminTuple]
certAsPEM = crypto.dump_certificate(crypto.FILETYPE_PEM, userCert)
# print("UserCert for orderer genesis:\n{0}\n".format(certAsPEM))
# print("")
return block
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
def _testAccessPBMethods():
channel_header = common_pb2.ChannelHeader(channel_id=TEST_CHAIN_ID,
type=common_pb2.ENDORSER_TRANSACTION)
header = common_pb2.Header(channel_header=channel_header.SerializeToString(),
signature_header=common_pb2.SignatureHeader().SerializeToString())
payload = common_pb2.Payload(header=header,
data="Functional test: {0}".format(datetime.datetime.utcnow()))
envelope = common_pb2.Envelope(payload=payload.SerializeToString())
return envelope
def generateMessageEnvelope():
channel_header = common_pb2.ChannelHeader(channel_id=endorser_util.TEST_CHANNEL_ID,
type=common_pb2.ENDORSER_TRANSACTION)
header = common_pb2.Header(channel_header=channel_header.SerializeToString(),
signature_header=common_pb2.SignatureHeader().SerializeToString())
payload = common_pb2.Payload(header=header,
data=str.encode("Functional test: {0}".format(datetime.datetime.utcnow())) )
envelope = common_pb2.Envelope(payload=payload.SerializeToString())
return envelope
def generateBroadcastMessages(numToGenerate = 1, timeToHoldOpen = 1):
messages = []
for i in range(0, numToGenerate):
envelope = common_pb2.Envelope()
payload = common_pb2.Payload(header = common_pb2.Header(chainHeader = common_pb2.ChainHeader()))
# TODO, appropriately set the header type
payload.data = str("BDD test: {0}".format(datetime.datetime.utcnow()))
envelope.payload = payload.SerializeToString()
messages.append(envelope)
for msg in messages:
yield msg
time.sleep(timeToHoldOpen)
def _defaultDataFunction(index):
payload = common_pb2.Payload(
header=common_pb2.Header(
chainHeader=common_pb2.ChainHeader(
chainID=TEST_CHAIN_ID,
type=common_pb2.ENDORSER_TRANSACTION,
),
signatureHeader=common_pb2.SignatureHeader(),
),
data=str("BDD test: {0}".format(datetime.datetime.utcnow())),
)
envelope = common_pb2.Envelope(payload=payload.SerializeToString())
return envelope
def createSeekInfo(chainID = TEST_CHAIN_ID, start = 'Oldest', end = 'Newest', behavior = 'FAIL_IF_NOT_READY'):
return common_pb2.Envelope(
payload = common_pb2.Payload(
header = common_pb2.Header(
channel_header = common_pb2.ChannelHeader( channel_id = chainID ).SerializeToString(),
signature_header = common_pb2.SignatureHeader().SerializeToString(),
),
data = ab_pb2.SeekInfo(
start = seekPosition(start),
stop = seekPosition(end),
behavior = ab_pb2.SeekInfo.SeekBehavior.Value(behavior),
).SerializeToString(),
).SerializeToString(),
)
def generateBroadcastMessages(numToGenerate=1, timeToHoldOpen=1):
messages = []
for i in range(0, numToGenerate):
envelope = common_pb2.Envelope()
payload = common_pb2.Payload(header=common_pb2.Header(
chainHeader=common_pb2.ChainHeader()))
payload.header.chainHeader.chainID = TEST_CHAIN_ID
payload.header.chainHeader.type = common_pb2.ENDORSER_TRANSACTION
payload.data = str("BDD test: {0}".format(datetime.datetime.utcnow()))
envelope.payload = payload.SerializeToString()
messages.append(envelope)
for msg in messages:
yield msg
time.sleep(timeToHoldOpen)
def createConfigTxEnvelope(chainId, signedConfigEnvelope):
bootstrapHelper = BootstrapHelper(chainId=chainId)
payloadChainHeader = bootstrapHelper.makeChainHeader(
type=common_dot_common_pb2.HeaderType.Value(
"CONFIGURATION_TRANSACTION"))
#Now the SignatureHeader
serializedCreatorCertChain = None
nonce = None
payloadSignatureHeader = common_dot_common_pb2.SignatureHeader(
creator=serializedCreatorCertChain,
nonce=bootstrapHelper.getNonce(),
)
payloadHeader = common_dot_common_pb2.Header(
chainHeader=payloadChainHeader,
signatureHeader=payloadSignatureHeader,
)
payload = common_dot_common_pb2.Payload(
header=payloadHeader, data=signedConfigEnvelope.SerializeToString())
envelope = common_dot_common_pb2.Envelope(
payload=payload.SerializeToString(), signature=None)
return envelope
