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
class BootstrapHelper:
KEY_CONSENSUS_TYPE = "ConsensusType"
KEY_CHAIN_CREATION_POLICY_NAMES = "ChainCreationPolicyNames"
KEY_ACCEPT_ALL_POLICY = "AcceptAllPolicy"
KEY_INGRESS_POLICY = "IngressPolicyNames"
KEY_EGRESS_POLICY = "EgressPolicyNames"
KEY_HASHING_ALGORITHM = "HashingAlgorithm"
KEY_BATCH_SIZE = "BatchSize"
KEY_BATCH_TIMEOUT = "BatchTimeout"
KEY_CREATIONPOLICY = "CreationPolicy"
KEY_MSP_INFO = "MSP"
KEY_ANCHOR_PEERS = "AnchorPeers"
KEY_NEW_CONFIGURATION_ITEM_POLICY = "NewConfigurationItemPolicy"
DEFAULT_CHAIN_CREATORS = [KEY_ACCEPT_ALL_POLICY]
DEFAULT_NONCE_SIZE = 24
def __init__(self,
chainId="TestChain",
lastModified=0,
msgVersion=1,
epoch=0,
consensusType="solo",
batchSize=10,
batchTimeout="10s",
absoluteMaxBytes=100000000,
preferredMaxBytes=512 * 1024,
signers=[]):
self.chainId = str(chainId)
self.lastModified = lastModified
self.msgVersion = msgVersion
self.epoch = epoch
self.consensusType = consensusType
self.batchSize = batchSize
self.batchTimeout = batchTimeout
self.absoluteMaxBytes = absoluteMaxBytes
self.preferredMaxBytes = preferredMaxBytes
self.signers = signers
@classmethod
def getNonce(cls):
return rand.bytes(BootstrapHelper.DEFAULT_NONCE_SIZE)
@classmethod
def addSignatureToSignedConfigItem(cls, signedConfigItem, (entity, cert)):
sigHeader = common_dot_common_pb2.SignatureHeader(
creator=crypto.dump_certificate(crypto.FILETYPE_ASN1, cert),
nonce=BootstrapHelper.getNonce())
sigHeaderBytes = sigHeader.SerializeToString()
# Signature over the concatenation of configurationItem bytes and signatureHeader bytes
signature = entity.sign(signedConfigItem.ConfigurationItem +
sigHeaderBytes)
# Now add new signature to Signatures repeated field
newConfigSig = signedConfigItem.Signatures.add()
newConfigSig.signatureHeader = sigHeaderBytes
newConfigSig.signature = signature
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 _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(),
)
class BootstrapHelper:
KEY_CONSENSUS_TYPE = "ConsensusType"
KEY_CHAIN_CREATORS = "ChainCreators"
KEY_ACCEPT_ALL_POLICY = "AcceptAllPolicy"
KEY_INGRESS_POLICY = "IngressPolicy"
KEY_EGRESS_POLICY = "EgressPolicy"
KEY_BATCH_SIZE = "BatchSize"
KEY_CREATIONPOLICY = "CreationPolicy"
DEFAULT_MODIFICATION_POLICY_ID = "DefaultModificationPolicy"
DEFAULT_CHAIN_CREATORS = [KEY_ACCEPT_ALL_POLICY]
DEFAULT_NONCE_SIZE = 24
def __init__(self,
chainId="TestChain",
lastModified=0,
msgVersion=1,
epoch=0,
consensusType="solo",
batchSize=10,
absoluteMaxBytes=100000000,
signers=[]):
self.chainId = str(chainId)
self.lastModified = lastModified
self.msgVersion = msgVersion
self.epoch = epoch
self.consensusType = consensusType
self.batchSize = batchSize
self.absoluteMaxBytes = absoluteMaxBytes
self.signers = signers
@classmethod
def getNonce(cls):
return rand.bytes(BootstrapHelper.DEFAULT_NONCE_SIZE)
@classmethod
def addSignatureToSignedConfigItem(cls, signedConfigItem, (signingKey,
cert)):
sigHeader = common_dot_common_pb2.SignatureHeader(
creator=crypto.dump_certificate(crypto.FILETYPE_ASN1, cert),
nonce=BootstrapHelper.getNonce())
sigHeaderBytes = sigHeader.SerializeToString()
# Signature over the concatenation of configurationItem bytes and signatureHeader bytes
signature = signingKey.sign(signedConfigItem.ConfigurationItem +
sigHeaderBytes)
# Now add new signature to Signatures repeated field
newConfigSig = signedConfigItem.Signatures.add()
newConfigSig.signatureHeader = sigHeaderBytes
newConfigSig.signature = signature
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
def makeSignatureHeader(self, serializeCertChain, nonce):
return common_dot_common_pb2.SignatureHeader(
creator=serializeCertChain, nonce=nonce)
