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import CellFrame
from CellFrame.Network import Net
from CellFrame.Common import DatumEmission
from DAP import Crypto
from DAP.Crypto import Cert, Sign
from CellFrame.Chain import Mempool
from CellFrame.Consensus import DAG,Block
from CellFrame.Common import Datum, DatumTx, TxOut, TxIn, TxToken, TxSig, TxOutCondSubtypeSrvStakeLock, TxInCond
from DAP.Crypto import HashFast
from DAP.Core import logIt
from datetime import datetime
import hashlib
import json
from cfhelpers.helpers import json_dump, find_tx_out
class TSD:
TYPE_UNKNOWN = 0x0000
TYPE_TIMESTAMP = 0x0001
TYPE_ADDRESS = 0x0002
TYPE_VALUE = 0x0003
TYPE_CONTRACT = 0x0004
TYPE_NET_ID = 0x0005
TYPE_BLOCK_NUM = 0x0006
TYPE_TOKEN_SYM = 0x0007
TYPE_OUTER_TX_HASH = 0x0008
TYPE_SOURCE = 0x0009
TYPE_SOURCE_SUBTYPE = 0x000A
TYPE_DATA = 0x000B
TYPE_SENDER = 0x000C
TYPE_TOKEN_ADDRESS = 0x000D
TYPE_SIGNATURS = 0x000E
TYPE_UNIQUE_ID = 0x000F
TYPE_BASE_TX_HASH = 0x0010
TYPE_EMISSION_CENTER_UID = 0x0011
TYPE_EMISSION_CENTER_VER = 0x0012
class CellframeEmission:
def __init__(self, datum):
self.datum = datum
self.hash = str(self.datum.hash)
m = hashlib.sha256()
addr = datum.getTSD(TSD.TYPE_ADDRESS)
btx = datum.getTSD(TSD.TYPE_BASE_TX_HASH)
otx = datum.getTSD(TSD.TYPE_OUTER_TX_HASH)
src = datum.getTSD(TSD.TYPE_SOURCE)
stp = datum.getTSD(TSD.TYPE_SOURCE_SUBTYPE)
ts = datum.getTSD(TSD.TYPE_TIMESTAMP)
data = datum.getTSD(TSD.TYPE_DATA)
uid = datum.getTSD(TSD.TYPE_UNIQUE_ID)
m.update(str(addr).encode("utf-8"))
m.update(str(btx).encode("utf-8"))
m.update(str(otx).encode("utf-8"))
m.update(str(src).encode("utf-8"))
m.update(str(stp).encode("utf-8"))
m.update(str(data).encode("utf-8"))
m.update(str(ts).encode("utf-8"))
m.update(str(uid).encode("utf-8"))
m.update(str(data).encode("utf-8"))
self.uid = m.hexdigest()
def getTSD(self, type):
tsd = self.datum.getTSD(type)
if tsd:
try:
return tsd.decode("utf-8")
except:
pass
return None
def setTSD(self, type, data):
self.datum.addTSD(type, data)
#if datum not base-tx - exception
class CellframeBaseTransactionDatum:
def __init__(self, datum, net, block=None):
self.block = block
self.datum = datum
self.hash = str(datum.hash)
self.created = datum.dateCreated
self.net = net
#base tx : has txToken item
if not self.tx_token():
raise RuntimeError("Datum {} not base tx".format(self.datum))
self.to_address = str(self.tx_out().addr)
self.amount = self.tx_out().value
self.emission_hash = str(self.tx_token().tokenEmissionHash)
self.emission_ = None
def tx_out(self):
try:
return next(filter(lambda x: isinstance(x, TxOut), self.datum.getItems()))
except:
return None
def tx_in(self):
try:
return next(filter(lambda x: isinstance(x, TxIn), self.datum.getItems()))
except:
return None
def tx_token(self):
try:
return next(filter(lambda x: isinstance(x, TxToken), self.datum.getItems()))
except:
return None
def tx_sig(self):
try:
return next(filter(lambda x: isinstance(x, TxSig), self.datum.getItems()))
except:
return None
def emission(self):
if not self.emission_:
tiker = str(self.tx_token().ticker)
hf = HashFast.fromString(str(self.tx_token().tokenEmissionHash))
ledger = self.net.getLedger()
ems = ledger.tokenEmissionFind(tiker, hf)
if not ems:
return None
self.emission_ = CellframeEmission(ems)
return self.emission_
class CellframeNetwork:
def __init__(self, name, chains, group_alias = None):
self.name = name
self.net = Net.byName(name)
self.group_alias = group_alias or name
if not self.net:
raise RuntimeError("No such net: {}".format(name))
for chain in chains:
setattr(self, chain, self.net.getChainByName(chain))
def set_mempool_notification_callback(self, chain, callback):
callback_name = "{}".format(self.name)
logIt.notice("New mempool notifier for {}".format(callback_name))
def callback_wraper(op_code, group, key, value, net_name):
callback(op_code, group, key, value, net_name, self, chain)
chain.addMempoolNotify(callback_wraper, callback_name)
def set_gdbsync_notification_callback(self, callback):
callback_name = "{}".format(self.name)
logIt.notice("New gdb notifier for {}".format(callback_name))
def callback_wraper(op_code, group, key, value, net_name):
callback(self, op_code, group, key, value, net_name)
self.net.addNotify(callback_wraper, self.name)
def set_atom_notification_callback(self, chain, callback):
callback_name = "{}".format(self.name)
logIt.notice("New atom notifier for {}".format(callback_name))
def callback_wraper(atom, size, callback_name):
callback(atom, size, callback_name, self, chain)
chain.addAtomNotify(callback_wraper, callback_name)
def set_ledger_tx_notification_callback(self, callback):
ledger = self.net.getLedger()
def callback_wrapper(ledger, tx, argv):
callback(ledger, tx, argv, self)
ledger.txAddNotify(callback_wrapper, self.net)
def load_cert(certname):
return Crypto.Cert.load(certname)
def extract_emission_from_mempool_nofitication(self, chain, value):
ems = Mempool.emissionExtract(chain, value)
if ems:
return CellframeEmission(ems)
else:
return None
def create_base_transaction(self, emission, certs):
return Mempool.baseTxCreate(self.main, emission.datum.hash, self.zerochain, emission.datum.value, emission.datum.ticker,
emission.datum.addr, certs)
def get_emission_by_tsd(self, tsd_dict):
atom_count = self.zerochain.countAtom()
atoms = self.zerochain.getAtoms(atom_count, 1, True)
emissions = {}
for atom in atoms:
event = DAG.fromAtom(atom[0], atom[1])
if not event.datum.isDatumTokenEmission():
continue
token_emission = event.datum.getDatumTokenEmission()
if not token_emission:
continue
results = []
for key,value in tsd_dict.items():
tsd = token_emission.getTSD(key)
if not tsd and value == None:
results.append(True)
continue
try:
if tsd and tsd.decode("utf-8") == value:
results.append(True)
continue
except:
pass
results.append(False)
if all(results):
emissions[str(event.datum.hash)] = CellframeEmission(token_emission)
return emissions
def get_emission_from_mempool_by_tsd(self, tsd_dict):
datums = Mempool.list(self.net, self.zerochain).values()
emissions = {}
for datum in datums:
if not datum.isDatumTokenEmission():
continue
token_emission = datum.getDatumTokenEmission()
if not token_emission:
continue
results = []
for key,value in tsd_dict.items():
tsd = token_emission.getTSD(key)
if not tsd and value == None:
results.append(True)
continue
try:
if tsd and tsd.decode("utf-8") == value:
results.append(True)
continue
except:
pass
results.append(False)
if all(results):
emissions[str(datum.hash)] = CellframeEmission(token_emission)
return emissions
def base_transactions_from_blocks(self, emission_hash=None):
iterator = self.main.createAtomItem(False)
ptr = self.main.atomIterGetFirst(iterator)
if not ptr:
logIt.error("Can't iterate over blocks in {}!".format(self.name))
return []
aptr, size = ptr
#iterate over blocks: atom-pointer should not be none, and size shoud be >0
while aptr:
if size <= 0: #skip such blocks
aptr, size = self.main.atomIterGetNext(iter)
continue
block = Block.fromAtom(aptr, size)
if not block.datums:
aptr, size = self.main.atomIterGetNext(iterator)
continue
for datum in block.datums:
if datum.isDatumTX():
try:
#if emshash provided - filter items
basedatum = CellframeBaseTransactionDatum( datum.getDatumTX(), block)
if emission_hash:
if basedatum.emission_hash == emission_hash:
yield basedatum
else:
continue
else:
yield basedatum
except:
continue
aptr, size = self.main.atomIterGetNext(iterator)
def get_transactions_to_wallet_from_blocks(self, address):
def nextBlockDatums():
iterator = self.createAtomItem(False)
aptr, size = self.main.atomIterGetFirst(iterator)
#iterate over blocks: atom-pointer should not be none, and size shoud be >0
while aptr:
if size <= 0: #skip such blocks
aptr, size = self.main.atomIterGetNext(iter)
continue
block = Block.fromAtom(aptr, size)
if block.datums:
yield block, block.datums
aptr, size = self.main.atomIterGetNext(iterator)
def isDatumToAddress(datum_with_block):
try:
txn_out = next(filter(lambda x: isinstance(x, TxOut), datum_with_block.datum.getItems()))
return str(txn_out.addr) == address
except Exception as e:
return False
transactions_to_wallet = []
class DatumWithBlock:
def __init__(self, datum, block):
self.datum = datum
self.block = block
for block, datums in nextBlockDatums():
tx_datums = [DatumWithBlock(datum.getDatumTX(), block) for datum in filter(lambda datum: datum.isDatumTX(), datums)]
transactions_to_wallet.extend(list(filter(isDatumToAddress, tx_datums)))
return transactions_to_wallet
def create_emission(self, wallet, token_symbol, value, tsd):
addr = CellFrame.Chain.ChainAddr.fromStr(wallet)
ems = DatumEmission(str(value), token_symbol, addr)
for key,value in tsd.items():
if isinstance(value, dict):
ems.addTSD(key, json_dump(value).encode("utf-8"))
elif isinstance(value, list):
ems.addTSD(key, json_dump(value).encode("utf-8"))
else:
ems.addTSD(key, str(value).encode("utf-8"))
return CellframeEmission(ems)
def place_emission(self, ems, chain):
return Mempool.emissionPlace(chain, ems.datum)
def place_datum(self, datum, chain):
return Mempool.addDatum(chain, datum)
def remove_key_from_mempool(self, key, chain):
Mempool.remove(chain, key)
def mempool_list(self, chain):
return Mempool.list(self.net, chain)
def mempool_get_emission(self, key):
return Mempool.emissionGet(self.zerochain, key)
def mempool_proc(self, hash, chain):
Mempool.proc(hash, chain)
def all_tx_from_ledger(self):
res = []
legder = self.net.getLedger()
count = legder.count()
txs = legder.getTransactions(count,1,False)
if not txs:
return [], legder
return txs, legder
def all_tx_from_blocks(self):
iterator = self.main.createAtomItem(False)
ptr = self.main.atomIterGetFirst(iterator)
if not ptr:
logIt.error("Can't iterate over blocks in {}!".format(self.name))
return []
aptr, size = ptr
#iterate over blocks: atom-pointer should not be none, and size shoud be >0
while aptr:
if size <= 0: #skip such blocks
aptr, size = self.main.atomIterGetNext(iter)
continue
block = Block.fromAtom(aptr, size)
if not block.datums:
aptr, size = self.main.atomIterGetNext(iterator)
continue
for datum in block.datums:
if datum.isDatumTX():
yield datum.getDatumTX()
else:
continue
aptr, size = self.main.atomIterGetNext(iterator)