def HandleGetHeadersMessageReceived(self, payload):
if not self.leader.ServiceEnabled:
return
inventory = IOHelper.AsSerializableWithType(payload, 'neo.Network.Payloads.GetBlocksPayload.GetBlocksPayload')
if not inventory:
return
blockchain = BC.Default()
hash = inventory.HashStart[0]
if hash is None or hash == inventory.HashStop:
self.Log("getheaders: Hash {} not found or hashstop reached".format(inventory.HashStart))
return
headers = []
header_count = 0
while hash != inventory.HashStop and header_count < 2000:
hash = blockchain.GetNextBlockHash(hash)
if not hash:
break
headers.append(blockchain.GetHeader(hash))
header_count += 1
if header_count > 0:
self.SendSerializedMessage(Message('headers', HeadersPayload(headers=headers)))
def test_block_deserialize(self):
block = Helper.AsSerializableWithType(self.rawblock_hex,
'neo.Core.Block.Block')
self.assertEqual(self.rb_prev, block.PrevHash.ToBytes())
self.assertEqual(self.rb_merlke, block.MerkleRoot.ToBytes())
self.assertEqual(self.rb_ts, block.Timestamp)
self.assertEqual(self.rb_h, block.Index)
self.assertEqual(self.rb_nonce, block.ConsensusData)
self.assertEqual(self.rconsenusdata, block.ConsensusData)
# self.assertEqual(self.rb_hash, block.HashToString())
tx = block.Transactions[0]
self.assertEqual(tx.Nonce, self.rblock_tx_nonce)
self.assertEqual(len(tx.inputs), 0)
self.assertEqual(len(tx.outputs), 0)
self.assertEqual(len(tx.Attributes), 0)
self.assertEqual(type(tx.scripts), list)
rawdata = block.RawData()
compair_data = self.rawblock[:len(rawdata)]
self.assertEqual(rawdata, compair_data)
out = block.Hash.ToBytes()
self.assertEqual(out, self.rb_hash)
root = MerkleTree.ComputeRoot([tx.Hash for tx in block.Transactions])
self.assertEqual(root, block.MerkleRoot)
def test_testnet797966(self):
path = '%s/fixtures/797966.txt' % os.getcwd()
with open(path, 'rb') as f:
blockraw = f.read().strip()
hex = binascii.unhexlify(blockraw)
block = Helper.AsSerializableWithType(hex, 'neo.Core.Block.Block')
trimmed = block.Trim()
trimmed_unhex = binascii.unhexlify(trimmed)
blockfrom_trimmed = Block.FromTrimmedData(trimmed_unhex)
self.assertEqual(blockfrom_trimmed.Version, block.Version)
self.assertEqual(blockfrom_trimmed.Index, block.Index)
self.assertEqual(blockfrom_trimmed.PrevHash, block.PrevHash)
self.assertEqual(blockfrom_trimmed.MerkleRoot, block.MerkleRoot)
self.assertEqual(blockfrom_trimmed.Timestamp, block.Timestamp)
self.assertEqual(blockfrom_trimmed.Index, block.Index)
self.assertEqual(blockfrom_trimmed.ConsensusData,
block.ConsensusData)
self.assertEqual(blockfrom_trimmed.NextConsensus,
block.NextConsensus)
self.assertEqual(len(block.Transactions),
len(blockfrom_trimmed.Transactions))
def test_add_header(self):
hexdata = binascii.unhexlify(self.block_one_raw)
block_one = Helper.AsSerializableWithType(hexdata,
'neo.Core.Block.Block')
header = block_one.Header()
hHash = header.HashToByteString()
self.assertEqual(
self._blockchain.CurrentHeaderHash(),
b'b3181718ef6167105b70920e4a8fbbd0a0a56aacf460d70e10ba6fa1668f1fef'
)
self.assertEqual(self._blockchain.HeaderHeight(), 0)
#add it to leveldb
self._blockchain.AddHeader(header)
self.assertEqual(self._blockchain.HeaderHeight(), 1)
#now retrieve it
block_one_again = self._blockchain.GetHeader(hHash)
self.assertEqual(type(block_one_again), Header)
self.assertEqual(block_one_again.HashToByteString(),
self.block_one_hash)
def test_invocation_assetcreate_block(self):
hexdata = binascii.unhexlify(self.asset_create_block)
block = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
self.assertEqual(block.Index, self.asset_create_index)
snapshot = Blockchain.Default()._db.createSnapshot()
snapshot.PersistingBlock = block
snapshot.UnspentCoins.Add(b'aa2051096e7be45ed991279a1a4c2678eb886690829a2729f4caa82192ff7f34', UnspentCoinState.FromTXOutputsConfirmed([0]))
result = False
with BlockchainFixtureTestCase.MPPersist():
result = Blockchain.Default().Persist(block, snapshot)
self.assertTrue(result)
# now the asset that was created should be there
newasset = snapshot.Assets.TryGet(self.asset_create_id)
self.assertIsNotNone(newasset)
self.assertEqual(newasset.AssetType, 1)
self.assertEqual(newasset.Precision, 8)
self.assertEqual(Crypto.ToAddress(newasset.Admin), self.asset_admin)
self.assertEqual(Crypto.ToAddress(newasset.Issuer), self.asset_admin)
self.assertIsInstance(newasset.AssetId, UInt256)
self.assertEqual(newasset.AssetId.ToBytes(), self.asset_create_id)
def HandleGetBlocksMessageReceived(self, payload):
"""
Process a GetBlocksPayload payload.
Args:
payload (neo.Network.Payloads.GetBlocksPayload):
"""
if not self.leader.ServiceEnabled:
return
inventory = IOHelper.AsSerializableWithType(
payload, 'neo.Network.Payloads.GetBlocksPayload.GetBlocksPayload')
if not inventory:
return
blockchain = BC.Default()
hash = inventory.HashStart[0]
if not blockchain.GetHeader(hash):
return
hashes = []
hcount = 0
while hash != inventory.HashStop and hcount < 500:
hash = blockchain.GetNextBlockHash(hash)
if hash is None:
break
hashes.append(hash)
hcount += 1
if hcount > 0:
self.SendSerializedMessage(
Message('inv',
InvPayload(type=InventoryType.Block, hashes=hashes)))
def HandleBlockReceived(self, inventory):
"""
Process a Block inventory payload.
Args:
inventory (neo.Network.Inventory):
"""
block = IOHelper.AsSerializableWithType(inventory,
'neo.Core.Block.Block')
blockhash = block.Hash.ToBytes()
if blockhash in BC.Default().BlockRequests:
BC.Default().BlockRequests.remove(blockhash)
if blockhash in self.myblockrequests:
self.myblockrequests.remove(blockhash)
error = self.leader.InventoryReceived(block)
if error == "FALSE_BLOCK":
rating = self.getRating()
if (rating <= 80):
rating += 20
elif rating < 100:
rating = 100
self.changeRating(rating)
if len(self.myblockrequests) < self.leader.NREQMAX:
self.DoAskForMoreBlocks()
def HandlePeerInfoReceived(self, payload):
addrs = IOHelper.AsSerializableWithType(
payload, 'neo.Network.Payloads.AddrPayload.AddrPayload')
for nawt in addrs.NetworkAddressesWithTime:
self.leader.RemoteNodePeerReceived(nawt.Address, nawt.Port)
def HandlePeerInfoReceived(self, payload):
"""Process response of `self.RequestPeerInfo`."""
addrs = IOHelper.AsSerializableWithType(
payload, 'neo.Network.Payloads.AddrPayload.AddrPayload')
for index, nawt in enumerate(addrs.NetworkAddressesWithTime):
self.leader.RemoteNodePeerReceived(nawt.Address, nawt.Port, index)
def test_invocation_assetcreate_block(self):
hexdata = binascii.unhexlify(self.asset_create_block)
block = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
self.assertEqual(block.Index, self.asset_create_index)
result = Blockchain.Default().Persist(block)
self.assertTrue(result)
# now the asset that was created should be there
assets = DBCollection(Blockchain.Default()._db, DBPrefix.ST_Asset, AssetState)
newasset = assets.TryGet(self.asset_create_id)
self.assertIsNotNone(newasset)
self.assertEqual(newasset.AssetType, 1)
self.assertEqual(newasset.Precision, 8)
self.assertEqual(Crypto.ToAddress(newasset.Admin), self.asset_admin)
self.assertEqual(Crypto.ToAddress(newasset.Issuer), self.asset_admin)
self.assertIsInstance(newasset.AssetId, UInt256)
self.assertEqual(newasset.AssetId.ToBytes(), self.asset_create_id)
def HandleGetDataMessageReceived(self, payload):
"""
Process a InvPayload payload.
Args:
payload (neo.Network.Inventory):
"""
inventory = IOHelper.AsSerializableWithType(payload, 'neo.Network.Payloads.InvPayload.InvPayload')
for hash in inventory.Hashes:
hash = hash.encode('utf-8')
item = None
# try to get the inventory to send from relay cache
if hash in self.leader.RelayCache.keys():
item = self.leader.RelayCache[hash]
if item:
if inventory.Type == int.from_bytes(InventoryType.TX, 'little'):
message = Message(command='tx', payload=item, print_payload=True)
self.SendSerializedMessage(message)
elif inventory.Type == int.from_bytes(InventoryType.Block, 'little'):
logger.info("handle block!")
elif inventory.Type == int.from_bytes(InventoryType.Consensus, 'little'):
logger.info("handle consensus")
def HandleVersion(self, payload):
"""Process the response of `self.RequestVersion`."""
self.Version = IOHelper.AsSerializableWithType(
payload, "neo.Network.Payloads.VersionPayload.VersionPayload")
self.nodeid = self.Version.Nonce
# self.Log("Remote version %s " % vars(self.Version))
self.SendVersion()
def test_contract_create_block(self):
hexdata = binascii.unhexlify(self.contract_create_block)
block = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
self.assertEqual(block.Index, self.contract_block_index)
result = Blockchain.Default().Persist(block)
self.assertTrue(result)
contracts = DBCollection(Blockchain.Default()._db, DBPrefix.ST_Contract, ContractState)
contract_added = contracts.TryGet(self.contract_hash)
self.assertIsNotNone(contract_added)
self.assertEqual(contract_added.HasStorage, False)
self.assertEqual(contract_added.Name, b'test')
self.assertEqual(contract_added.Email, b'test')
self.assertEqual(len(Blockchain.Default().SearchContracts("test NEX Template V3")), 1)
self.assertEqual(len(Blockchain.Default().SearchContracts("TEST nex TEMPLATE v3")), 1)
self.assertEqual(len(Blockchain.Default().SearchContracts("TEST!")), 0)
code = contract_added.Code
self.assertIsNotNone(code)
self.assertEqual(code.ReturnType, 2)
self.assertEqual(code.ScriptHash().ToBytes(), self.contract_hash)
self.assertEqual(code.Script.hex().encode('utf-8'), self.contract_block_script)
def HandleGetBlocksMessageReceived(self, payload):
"""
Process a GetBlocksPayload payload.
Args:
payload (neo.Network.Payloads.GetBlocksPayload):
"""
if not self.leader.ServiceEnabled:
return
inventory = IOHelper.AsSerializableWithType(
payload, 'neo.Network.Payloads.GetBlocksPayload.GetBlocksPayload')
if not BC.Default().GetHeader(inventory.HashStart):
self.Log("Hash %s not found %s " % inventory.HashStart)
return
hashes = []
hcount = 0
hash = inventory.HashStart
while hash != inventory.HashStop and hcount < 500:
hash = BC.Default().GetNextBlockHash(hash)
if hash is None:
break
hashes.append(hash)
hcount += 1
if hcount > 0:
self.Log("sending inv hashes! %s " % hashes)
self.SendSerializedMessage(
Message('inv',
InvPayload(type=InventoryType.Block, hashes=hashes)))
def HandleBlockReceived(self, inventory):
"""
Process a Block inventory payload.
Args:
inventory (neo.Network.Inventory):
"""
block = IOHelper.AsSerializableWithType(inventory, 'neo.Core.Block.Block')
if not block:
return
blockhash = block.Hash.ToBytes()
try:
if blockhash in BC.Default().BlockRequests:
BC.Default().BlockRequests.remove(blockhash)
except KeyError:
pass
try:
if blockhash in self.myblockrequests:
# logger.debug(f"{self.prefix} received block: {block.Index}")
self.heart_beat(HEARTBEAT_BLOCKS)
self.myblockrequests.remove(blockhash)
except KeyError:
pass
self.leader.InventoryReceived(block)
def HandleInvMessage(self, payload):
"""
Process a block header inventory payload.
Args:
inventory (neo.Network.Payloads.InvPayload):
"""
if self.sync_mode != MODE_MAINTAIN:
return
inventory = IOHelper.AsSerializableWithType(
payload, 'neo.Network.Payloads.InvPayload.InvPayload')
if inventory.Type == InventoryType.BlockInt:
ok_hashes = []
for hash in inventory.Hashes:
hash = hash.encode('utf-8')
if hash not in self.myblockrequests and hash not in BC.Default(
).BlockRequests:
ok_hashes.append(hash)
BC.Default().BlockRequests.add(hash)
self.myblockrequests.add(hash)
if len(ok_hashes):
# logger.info("OK HASHES, get data %s " % ok_hashes)
message = Message("getdata",
InvPayload(InventoryType.Block, ok_hashes))
self.SendSerializedMessage(message)
elif inventory.Type == InventoryType.TXInt:
pass
elif inventory.Type == InventoryType.ConsensusInt:
pass
def test_block_publish_tx(self):
hexdata = binascii.unhexlify(self.pb_raw)
block = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
self.assertEqual(block.Hash.ToBytes(), self.pb_hash)
def test_1050514(self):
path = '%s/fixtures/1050514.txt' % os.getcwd()
with open(path, 'rb') as f:
#
blockraw = f.read().strip()
hex = binascii.unhexlify(blockraw)
block = Helper.AsSerializableWithType(hex, 'neo.Core.Block.Block')
self.assertEqual(self.big_tx_hash, block.Hash.ToBytes())
json = block.ToJson()
self.assertEqual(json['index'], 1050514)
self.assertEqual(json['hash'],
'0x%s' % self.big_tx_hash.decode('utf-8'))
self.assertEqual(json['nonce'], 'a62f207d4f00af81')
self.assertEqual(json['nextconsensus'],
'APyEx5f4Zm4oCHwFWiSTaph1fPBxZacYVR')
self.assertEqual(len(json['tx']), 65)
for tx in json['tx']:
if tx['txid'] == '1dc3543a5b54fcfce3fefba6c772f3a59740b2b1784690b3c66e2f7052f002bb':
bigclaim = tx
self.assertEqual(len(bigclaim['claims']), 1756)
vout = bigclaim['vout'][0]
self.assertEqual(vout['ScriptHash'],
'AFnRHRQceaUgFQxPTttAQzAZvsjGSNtHCH')
self.assertEqual(vout['Value'], 5786800133972)
def test_block_seventyfour(self):
hexdata = binascii.unhexlify(self.sf_raw)
block = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
self.assertEqual(block.MerkleRoot.ToBytes(), self.sf_merk)
self.assertEqual(block.Hash.ToBytes(), self.sf_hash)
def test_a_run_sc(self):
hexdata = binascii.unhexlify(self.invb)
block = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
result = self._blockchain.Persist(block)
self.assertTrue(result)
def HandleBlockHeadersReceived(self, inventory):
inventory = IOHelper.AsSerializableWithType(
inventory, 'neo.Network.Payloads.HeadersPayload.HeadersPayload')
BC.Default().AddHeaders(inventory.Headers)
if BC.Default().HeaderHeight < self.Version.StartHeight:
self.AskForMoreHeaders()
def LoadContracts(self):
ctr = {}
for ct in Contract.select():
data = binascii.unhexlify(ct.RawData)
contract = Helper.AsSerializableWithType(data, 'neo.SmartContract.Contract.Contract')
ctr[contract.ScriptHash.ToBytes()] = contract
return ctr
def HandlePeerInfoReceived(self, payload):
"""Process response of `self.RequestPeerInfo`."""
addrs = IOHelper.AsSerializableWithType(payload, 'neo.Network.Payloads.AddrPayload.AddrPayload')
if not addrs:
return
for nawt in addrs.NetworkAddressesWithTime:
self.leader.RemoteNodePeerReceived(nawt.Address, nawt.Port, self.prefix)
def test_invocation_txn_size(self):
""" For more information about the following test read here
https://github.com/neo-project/neo/issues/652
"""
raw_tx = b"d1015904802b530b14d5a682e81b8a840cc44b3b360cbd0f1ee6f50efd14235a717ed7ed18a43de47499c3d05b8d4a4bcf3a53c1087472616e7366657267fb1c540417067c270dee32f21023aa8b9b71abcef166fc47646b02d3f92300000000000000000120235a717ed7ed18a43de47499c3d05b8d4a4bcf3a0000014140b9234cad658c4d512bca453908a0df1c2beda49c544ec735bb492b81b4d0974ac8d66046061b3d0ce823e27c71fef1ee6a8f2fa369198ac74acedd045901d7222321030ab39b99d8675cd9bd90aaec37cba964297cc817078d33e508ab11f1d245c068ac"
tx = IOHelper.DeserializeTX(binascii.unhexlify(raw_tx))
txjson = tx.ToJson()
self.assertEqual(227, txjson['size'])
def test_block_non_verbose(self):
req = self._gen_rpc_req("getblock", params=[2003, 0])
mock_req = mock_request(json.dumps(req).encode("utf-8"))
res = json.loads(self.app.home(mock_req))
self.assertIsNotNone(res['result'])
# we should be able to instantiate a matching block with the result
output = binascii.unhexlify(res['result'])
block = Helper.AsSerializableWithType(output, 'neo.Core.Block.Block')
self.assertEqual(block.Index, 2003)
self.assertEqual(len(block.Transactions), 1)
def HandleVersion(self, payload):
"""Process the response of `self.RequestVersion`."""
self.Version = IOHelper.AsSerializableWithType(payload, "neo.Network.Payloads.VersionPayload.VersionPayload")
if self.incoming_client:
if self.Version.Nonce == self.nodeid:
self.Disconnect()
self.SendVerack()
else:
self.nodeid = self.Version.Nonce
self.SendVersion()
def test_testnet10412011(self):
block = Helper.AsSerializableWithType(self.block_bytes, 'neo.Core.Block.Block')
self.assertEqual(len(block.Transactions), 2)
state_tx = block.Transactions[1]
self.assertIsInstance(state_tx, StateTransaction)
self.assertEqual(len(state_tx.Descriptors), 1)
descriptor = state_tx.Descriptors[0]
self.assertIsInstance(descriptor, StateDescriptor)
self.assertEqual(descriptor.Type, StateType.Validator)
self.assertEqual(descriptor.SystemFee, Fixed8.FromDecimal(1000))
self.assertEqual(descriptor.Key, binascii.unhexlify(b'03c089d7122b840a4935234e82e26ae5efd0c2acb627239dc9f207311337b6f2c1'))
def test_add_header(self):
print("add header")
hexdata = binascii.unhexlify(self.block_one_raw)
block_one = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
if settings.MAGIC == 1953787457:
self.assertEqual(self._blockchain.CurrentHeaderHash, b'b3181718ef6167105b70920e4a8fbbd0a0a56aacf460d70e10ba6fa1668f1fef')
else:
self.assertEqual(self._blockchain.CurrentHeaderHash, b'd42561e3d30e15be6400b6df2f328e02d2bf6354c41dce433bc57687c82144bf')
self.assertEqual(self._blockchain.HeaderHeight, 0)
def test_b_invocation(self):
hexdata = binascii.unhexlify(self.tbblock)
block = Helper.AsSerializableWithType(hexdata, 'neo.Core.Block.Block')
json = block.ToJson()
self.assertIsNotNone(json)
result = self._blockchain.Persist(block)
self.assertTrue(result)
def test_add_header(self):
hexdata = binascii.unhexlify(self.block_one_raw)
block_one = Helper.AsSerializableWithType(hexdata,
'neo.Core.Block.Block')
header = block_one.Header
if Settings.MAGIC == 1953787457:
self.assertEqual(
self._blockchain.CurrentHeaderHash,
b'b3181718ef6167105b70920e4a8fbbd0a0a56aacf460d70e10ba6fa1668f1fef'
)
else:
self.assertEqual(
self._blockchain.CurrentHeaderHash,
b'd42561e3d30e15be6400b6df2f328e02d2bf6354c41dce433bc57687c82144bf'
)
self.assertEqual(self._blockchain.HeaderHeight, 0)
#add it to leveldb
# self._blockchain.AddHeader( header )
# self.assertEqual(self._blockchain.HeaderHeight, 1)
#now retrieve it
# block_one_again = self._blockchain.GetHeader(header.Hash)
# self.assertEqual(type(block_one_again), Header)
# self.assertEqual(block_one_again.Hash.ToBytes(), self.block_one_hash)
#check to see if the header hash in correct
# self.assertEqual(block_one_again.Hash.ToBytes(), self._blockchain.CurrentHeaderHash.ToBytes())
#now try adding the same block again and see if the height changes
# self._blockchain.AddHeader(header)
# self.assertEqual(self._blockchain.HeaderHeight, 1)
#current block height should still be zero
# self.assertEqual(self._blockchain.Height, 0)
#now test adding the second block
# self._blockchain.Persist(block_one)
#now the block height should be 1
# self.assertEqual(self._blockchain.Height, 1)
#test contains block functions
# self.assertTrue( self._blockchain.ContainsBlock(block_one_again.Index))