flo-token-tracking/util_rollback.py

476 lines
26 KiB
Python

import argparse
from sqlalchemy import create_engine, func
from sqlalchemy.orm import sessionmaker
from models import SystemData, TokenBase, ActiveTable, ConsumedTable, TransferLogs, TransactionHistory, TokenContractAssociation, RejectedTransactionHistory, ContractBase, ContractStructure, ContractParticipants, ContractTransactionHistory, ContractDeposits, ConsumedInfo, ContractWinners, ContinuosContractBase, ContractStructure2, ContractParticipants2, ContractDeposits2, ContractTransactionHistory2, SystemBase, ActiveContracts, SystemData, ContractAddressMapping, TokenAddressMapping, DatabaseTypeMapping, TimeActions, RejectedContractTransactionHistory, RejectedTransactionHistory, LatestCacheBase, LatestTransactions, LatestBlocks
from ast import literal_eval
import os
import json
import logging
import sys
from parsing import perform_decimal_operation
apppath = os.path.dirname(os.path.realpath(__file__))
# helper functions
def check_database_existence(type, parameters):
if type == 'token':
return os.path.isfile(f"./tokens/{parameters['token_name']}.db")
if type == 'smart_contract':
return os.path.isfile(f"./smartContracts/{parameters['contract_name']}-{parameters['contract_address']}.db")
def create_database_connection(type, parameters):
if type == 'token':
engine = create_engine(f"sqlite:///tokens/{parameters['token_name']}.db", echo=True)
elif type == 'smart_contract':
engine = create_engine(f"sqlite:///smartContracts/{parameters['contract_name']}-{parameters['contract_address']}.db", echo=True)
elif type == 'system_dbs':
engine = create_engine(f"sqlite:///{parameters['db_name']}.db", echo=False)
connection = engine.connect()
return connection
def create_database_session_orm(type, parameters, base):
if type == 'token':
engine = create_engine(f"sqlite:///tokens/{parameters['token_name']}.db", echo=True)
base.metadata.create_all(bind=engine)
session = sessionmaker(bind=engine)()
elif type == 'smart_contract':
engine = create_engine(f"sqlite:///smartContracts/{parameters['contract_name']}-{parameters['contract_address']}.db", echo=True)
base.metadata.create_all(bind=engine)
session = sessionmaker(bind=engine)()
elif type == 'system_dbs':
engine = create_engine(f"sqlite:///{parameters['db_name']}.db", echo=False)
base.metadata.create_all(bind=engine)
session = sessionmaker(bind=engine)()
else:
pdb.set_trace()
return session
def inspect_parsed_flodata(parsed_flodata, inputAddress, outputAddress):
if parsed_flodata['type'] == 'transfer':
if parsed_flodata['transferType'] == 'token':
return {'type':'tokentransfer', 'token_db':f"{parsed_flodata['tokenIdentification']}", 'token_amount':f"{parsed_flodata['tokenAmount']}"}
if parsed_flodata['transferType'] == 'smartContract':
return {'type':'smartContract', 'contract_db': f"{parsed_flodata['contractName']}-{outputAddress}" ,'accepting_token_db':f"{parsed_flodata['']}", 'receiving_token_db':f"{parsed_flodata['tokenIdentification']}" ,'token_amount':f"{parsed_flodata['tokenAmount']}"}
if parsed_flodata['transferType'] == 'swapParticipation':
return {'type':'swapParticipation', 'contract_db': f"{parsed_flodata['contractName']}-{outputAddress}" ,'accepting_token_db':f"{parsed_flodata['']}", 'receiving_token_db':f"{parsed_flodata['tokenIdentification']}" ,'token_amount':f"{parsed_flodata['tokenAmount']}"}
if parsed_flodata['transferType'] == 'nft':
return {'type':'nfttransfer', 'nft_db':f"{parsed_flodata['tokenIdentification']}", 'token_amount':f"{parsed_flodata['tokenAmount']}"}
if parsed_flodata['type'] == 'tokenIncorporation':
return {'type':'tokenIncorporation', 'token_db':f"{parsed_flodata['tokenIdentification']}", 'token_amount':f"{parsed_flodata['tokenAmount']}"}
if parsed_flodata['type'] == 'smartContractPays':
# contract address, token | both of them come from
sc_session = create_database_session_orm('smart_contract', {'contract_name':f"{parsed_flodata['contractName']}", 'contract_address':f"{outputAddress}"}, ContractBase)
token_db = sc_session.query(ContractStructure.value).filter(ContractStructure.attribute=='tokenIdentification').first()[0]
return {'type':'smartContractPays', 'token_db':f"{token_db}" , 'contract_db':f"{parsed_flodata['contractName']}-{outputAddress}", 'triggerCondition':f"{parsed_flodata['triggerCondition']}"}
if parsed_flodata['type'] == 'smartContractIncorporation':
return {'type':'smartContractIncorporation', 'contract_db':f"{parsed_flodata['contractName']}-{outputAddress}", 'triggerCondition':f"{parsed_flodata['triggerCondition']}"}
def getDatabase_from_parsedFloData(parsed_flodata, inputAddress, outputAddress):
tokenlist = []
contractlist = []
if parsed_flodata['type'] == 'transfer':
if parsed_flodata['transferType'] == 'token':
#return {'type':'token_db', 'token_db':f"{parsed_flodata['tokenIdentification']}"}
tokenlist.append(parsed_flodata['tokenIdentification'])
elif parsed_flodata['transferType'] == 'smartContract':
#return {'type':'smartcontract_db', 'contract_db': f"{parsed_flodata['contractName']}-{outputAddress}" ,'token_db':f"{parsed_flodata['tokenIdentification']}"}
tokenlist.append(parsed_flodata['tokenIdentification'])
contractlist.append(f"{parsed_flodata['contractName']}-{outputAddress}")
elif parsed_flodata['transferType'] == 'swapParticipation':
#return {'type':'swapcontract_db', 'contract_db': f"{parsed_flodata['contractName']}-{outputAddress}" ,'accepting_token_db':f"{parsed_flodata['contract-conditions']['accepting_token']}", 'selling_token_db':f"{parsed_flodata['contract-conditions']['selling_token']}"}
tokenlist.append(parsed_flodata['contract-conditions']['accepting_token'])
tokenlist.append(parsed_flodata['contract-conditions']['selling_token'])
contractlist.append(f"{parsed_flodata['contractName']}-{outputAddress}")
elif parsed_flodata['transferType'] == 'nft':
#return {'type':'nft_db', 'token_db':f"{parsed_flodata['tokenIdentification']}"}
tokenlist.append(parsed_flodata['tokenIdentification'])
elif parsed_flodata['type'] == 'smartContractPays':
# contract address, token | both of them come from
sc_session = create_database_session_orm('smart_contract', {'contract_name':f"{parsed_flodata['contractName']}", 'contract_address':f"{outputAddress}"}, ContractBase)
token_db = sc_session.query(ContractStructure.value).filter(ContractStructure.attribute=='tokenIdentification').first()[0]
#return {'type':'smartcontract_db', 'contract_db':f"{parsed_flodata['contractName']}-{outputAddress}", 'token_db':f"{token_db}"}
tokenlist.append(token_db)
contractlist.append(f"{parsed_flodata['contractName']}-{outputAddress}")
elif parsed_flodata['type'] == 'smartContractIncorporation':
#return {'type':'smartcontract_db', 'contract_db':f"{parsed_flodata['contractName']}-{outputAddress}"}
contractlist.append(f"{parsed_flodata['contractName']}-{outputAddress}")
elif parsed_flodata['type'] == 'tokenIncorporation':
#return {'type':'token_db', 'token_db':f"{parsed_flodata['tokenIdentification']}"}
tokenlist.append(parsed_flodata['tokenIdentification'])
return tokenlist, contractlist
def calc_pid_amount(transferBalance, consumedpid):
consumedpid_sum = 0
for key in list(consumedpid.keys()):
consumedpid_sum = perform_decimal_operation('addition', consumedpid_sum, float(consumedpid[key]))
return transferBalance - consumedpid_sum
def find_addressBalance_from_floAddress(database_session, floAddress):
query_output = database_session.query(ActiveTable).filter(ActiveTable.address==floAddress, ActiveTable.addressBalance!=None).first()
if query_output is None:
return 0
else:
return query_output.addressBalance
def rollback_address_balance_processing(db_session, senderAddress, receiverAddress, transferBalance):
# Find out total sum of address
# Find out the last entry where address balance is not null, if exists make it null
# Calculation phase
current_receiverBalance = find_addressBalance_from_floAddress(db_session, receiverAddress)
current_senderBalance = find_addressBalance_from_floAddress(db_session ,senderAddress)
new_receiverBalance = perform_decimal_operation('subtraction', current_receiverBalance, transferBalance)
new_senderBalance = perform_decimal_operation('addition', current_senderBalance, transferBalance)
# Insertion phase
# if new receiver balance is 0, then only insert sender address balance
# if receiver balance is not 0, then update previous occurence of the receiver address and sender balance
# for sender, find out weather
# either query out will not come or the last occurence will have address
# for sender, in all cases we will update the addressBalance of last occurences of senderfloaddress
# for receiver, if the currentaddressbalance is 0 then do nothing .. and if the currentaddressbalance is not 0 then update the last occurence of receiver address
sender_query = db_session.query(ActiveTable).filter(ActiveTable.address==senderAddress).order_by(ActiveTable.id.desc()).first()
sender_query.addressBalance = new_senderBalance
if new_receiverBalance != 0 and new_receiverBalance > 0:
receiver_query = db_session.query(ActiveTable).filter(ActiveTable.address==receiverAddress).order_by(ActiveTable.id.desc()).limit(2).all()
if len(receiver_query) == 2:
receiver_query[1].addressBalance = new_receiverBalance
def find_input_output_addresses(transaction_data):
# Create vinlist and outputlist
vinlist = []
querylist = []
for vin in transaction_data["vin"]:
vinlist.append([vin["addresses"][0], float(vin["value"])])
totalinputval = float(transaction_data["valueIn"])
# todo Rule 41 - Check if all the addresses in a transaction on the input side are the same
for idx, item in enumerate(vinlist):
if idx == 0:
temp = item[0]
continue
if item[0] != temp:
print(f"System has found more than one address as part of vin. Transaction {transaction_data['txid']} is rejected")
return 0
inputlist = [vinlist[0][0], totalinputval]
inputadd = vinlist[0][0]
# todo Rule 42 - If the number of vout is more than 2, reject the transaction
if len(transaction_data["vout"]) > 2:
print(f"System has found more than 2 address as part of vout. Transaction {transaction_data['txid']} is rejected")
return 0
# todo Rule 43 - A transaction accepted by the system has two vouts, 1. The FLO address of the receiver
# 2. Flo address of the sender as change address. If the vout address is change address, then the other adddress
# is the recevier address
outputlist = []
addresscounter = 0
inputcounter = 0
for obj in transaction_data["vout"]:
if obj["scriptPubKey"]["type"] == "pubkeyhash":
addresscounter = addresscounter + 1
if inputlist[0] == obj["scriptPubKey"]["addresses"][0]:
inputcounter = inputcounter + 1
continue
outputlist.append([obj["scriptPubKey"]["addresses"][0], obj["value"]])
if addresscounter == inputcounter:
outputlist = [inputlist[0]]
elif len(outputlist) != 1:
print(f"Transaction's change is not coming back to the input address. Transaction {transaction_data['txid']} is rejected")
return 0
else:
outputlist = outputlist[0]
return inputlist[0], outputlist[0]
def rollback_database(blockNumber, dbtype, dbname):
if dbtype == 'token':
# Connect to database
db_session = create_database_session_orm('token', {'token_name':dbname}, TokenBase)
while(True):
subqry = db_session.query(func.max(ActiveTable.id))
activeTable_entry = db_session.query(ActiveTable).filter(ActiveTable.id == subqry).first()
if activeTable_entry.blockNumber <= blockNumber:
break
outputAddress = activeTable_entry.address
transferAmount = activeTable_entry.transferBalance
inputAddress = None
# Find out consumedpid and partially consumed pids
parentid = None
orphaned_parentid = None
consumedpid = None
if activeTable_entry.parentid is not None:
parentid = activeTable_entry.parentid
if activeTable_entry.orphaned_parentid is not None:
orphaned_parentid = activeTable_entry.orphaned_parentid
if activeTable_entry.consumedpid is not None:
consumedpid = literal_eval(activeTable_entry.consumedpid)
# filter out based on consumped pid and partially consumed pids
if parentid is not None:
# find query in activeTable with the parentid
activeTable_pid_entry = db_session.query(ActiveTable).filter(ActiveTable.id == parentid).all()[0]
# calculate the amount taken from parentid
activeTable_pid_entry.transferBalance = activeTable_pid_entry.transferBalance + calc_pid_amount(activeTable_entry.transferBalance, consumedpid)
inputAddress = activeTable_pid_entry.address
if orphaned_parentid is not None:
try:
orphaned_parentid_entry = db_session.query(ConsumedTable).filter(ConsumedTable.id == orphaned_parentid).all()[0]
inputAddress = orphaned_parentid_entry.address
except:
pdb.set_trace()
if consumedpid != {}:
# each key of the pid is totally consumed and with its corresponding value written in the end
# how can we maintain the order of pid consumption? The bigger pid number will be towards the end
# 1. pull the pid number and its details from the consumedpid table
for key in list(consumedpid.keys()):
consumedpid_entry = db_session.query(ConsumedTable).filter(ConsumedTable.id == key).all()[0]
newTransferBalance = consumedpid_entry.transferBalance + consumedpid[key]
db_session.add(ActiveTable(id=consumedpid_entry.id, address=consumedpid_entry.address, parentid=consumedpid_entry.parentid ,consumedpid=consumedpid_entry.consumedpid, transferBalance=newTransferBalance, addressBalance = None, orphaned_parentid=consumedpid_entry.orphaned_parentid ,blockNumber=consumedpid_entry.blockNumber))
inputAddress = consumedpid_entry.address
db_session.delete(consumedpid_entry)
orphaned_parentid_entries = db_session.query(ActiveTable).filter(ActiveTable.orphaned_parentid == key).all()
if len(orphaned_parentid_entries) != 0:
for orphan_entry in orphaned_parentid_entries:
orphan_entry.parentid = orphan_entry.orphaned_parentid
orphan_entry.orphaned_parentid = None
orphaned_parentid_entries = db_session.query(ConsumedTable).filter(ConsumedTable.orphaned_parentid == key).all()
if len(orphaned_parentid_entries) != 0:
for orphan_entry in orphaned_parentid_entries:
orphan_entry.parentid = orphan_entry.orphaned_parentid
orphan_entry.orphaned_parentid = None
# update addressBalance
rollback_address_balance_processing(db_session, inputAddress, outputAddress, transferAmount)
# delete operations
# delete the last row in activeTable and transactionTable
db_session.delete(activeTable_entry)
db_session.query(TransactionHistory).filter(TransactionHistory.blockNumber > blockNumber).delete()
db_session.query(TransferLogs).filter(TransferLogs.blockNumber > blockNumber).delete()
db_session.commit()
elif dbtype == 'smartcontract':
db_session = create_database_session_orm('smart_contract', {'contract_name':f"{dbname['contract_name']}", 'contract_address':f"{dbname['contract_address']}"}, ContractBase)
db_session.query(ContractTransactionHistory).filter(ContractTransactionHistory.blockNumber > blockNumber).delete()
db_session.query(ContractParticipants).filter(ContractParticipants.blockNumber > blockNumber).delete()
db_session.query(ContractDeposits).filter(ContractDeposits.blockNumber > blockNumber).delete()
db_session.query(ConsumedInfo).filter(ConsumedInfo.blockNumber > blockNumber).delete()
db_session.query(ContractWinners).filter(ContractWinners.blockNumber > blockNumber).delete()
db_session.commit()
def delete_database_old(blockNumber, dbname):
db_session = create_database_session_orm('system_dbs', {'db_name':'system'}, SystemBase)
databases_to_delete = db_session.query(DatabaseTypeMapping.db_name, DatabaseTypeMapping.db_type).filter(DatabaseTypeMapping.blockNumber>blockNumber).all()
db_names, db_type = zip(*databases_to_delete)
for database in databases_to_delete:
if database[1] in ['token','infinite-token']:
dirpath = os.path.join(apppath, 'tokens', f"{dbname}.db")
if os.path.exists(dirpath):
os.remove(dirpath)
elif database[1] in ['smartcontract']:
dirpath = os.path.join(apppath, 'smartcontracts', f"{dbname}.db")
if os.path.exists(dirpath):
os.remove(dirpath)
return db_names
def delete_database(blockNumber, dbname):
db_session = create_database_session_orm('system_dbs', {'db_name':'system'}, SystemBase)
databases_to_delete = db_session.query(DatabaseTypeMapping.db_name, DatabaseTypeMapping.db_type).filter(DatabaseTypeMapping.db_name == dbname).all()
db_names, db_type = zip(*databases_to_delete)
for database in databases_to_delete:
if database[1] in ['token','infinite-token','nft']:
dirpath = os.path.join(apppath, 'tokens', f"{dbname}.db")
if os.path.exists(dirpath):
os.remove(dirpath)
elif database[1] in ['smartcontract']:
dirpath = os.path.join(apppath, 'smartContracts', f"{dbname}.db")
if os.path.exists(dirpath):
os.remove(dirpath)
return db_names
def system_database_deletions(blockNumber):
latestcache_session = create_database_session_orm('system_dbs', {'db_name': 'latestCache'}, LatestCacheBase)
# delete latestBlocks & latestTransactions entry
latestcache_session.query(LatestBlocks).filter(LatestBlocks.blockNumber > blockNumber).delete()
latestcache_session.query(LatestTransactions).filter(LatestTransactions.blockNumber > blockNumber).delete()
# delete activeContracts, contractAddressMapping, DatabaseAddressMapping, rejectedContractTransactionHistory, rejectedTransactionHistory, tokenAddressMapping
systemdb_session = create_database_session_orm('system_dbs', {'db_name': 'system'}, SystemBase)
activeContracts_session = systemdb_session.query(ActiveContracts).filter(ActiveContracts.blockNumber > blockNumber).delete()
contractAddressMapping_queries = systemdb_session.query(ContractAddressMapping).filter(ContractAddressMapping.blockNumber > blockNumber).delete()
databaseTypeMapping_queries = systemdb_session.query(DatabaseTypeMapping).filter(DatabaseTypeMapping.blockNumber > blockNumber).delete()
rejectedContractTransactionHistory_queries = systemdb_session.query(RejectedContractTransactionHistory).filter(RejectedContractTransactionHistory.blockNumber > blockNumber).delete()
rejectedTransactionHistory_queries = systemdb_session.query(RejectedTransactionHistory).filter(RejectedTransactionHistory.blockNumber > blockNumber).delete()
tokenAddressMapping_queries = systemdb_session.query(TokenAddressMapping).filter(TokenAddressMapping.blockNumber > blockNumber).delete()
timeAction_queries = systemdb_session.query(TimeActions).filter(TimeActions.blockNumber > blockNumber).delete()
systemdb_session.query(SystemData).filter(SystemData.attribute=='lastblockscanned').update({SystemData.value:str(blockNumber)})
latestcache_session.commit()
systemdb_session.commit()
latestcache_session.close()
systemdb_session.close()
# Take input from user reg how many blocks to go back in the blockchain
parser = argparse.ArgumentParser(description='Script tracks RMT using FLO data on the FLO blockchain - https://flo.cash')
parser.add_argument('-rb', '--toblocknumer', nargs='?', type=int, help='Rollback the script to the specified block number')
parser.add_argument('-r', '--blockcount', nargs='?', type=int, help='Rollback the script to the number of blocks specified')
args = parser.parse_args()
# Get all the transaction and blockdetails from latestCache reg the transactions in the block
systemdb_session = create_database_session_orm('system_dbs', {'db_name': 'system'}, SystemBase)
lastscannedblock = systemdb_session.query(SystemData.value).filter(SystemData.attribute=='lastblockscanned').first()
systemdb_session.close()
lastscannedblock = int(lastscannedblock.value)
if (args.blockcount and args.toblocknumber):
print("You can only specify one of the options -b or -c")
sys.exit(0)
elif args.blockcount:
rollback_block = lastscannedblock - args.blockcount
elif args.toblocknumer:
rollback_block = args.toblocknumer
else:
print("Please specify the number of blocks to rollback")
sys.exit(0)
def return_token_contract_set(rollback_block):
latestcache_session = create_database_session_orm('system_dbs', {'db_name': 'latestCache'}, LatestCacheBase)
latestBlocks = latestcache_session.query(LatestBlocks).filter(LatestBlocks.blockNumber > rollback_block).all()
lblocks_dict = {}
blocknumber_list = []
for block in latestBlocks:
block_dict = block.__dict__
lblocks_dict[block_dict['blockNumber']] = {'blockHash':f"{block_dict['blockHash']}", 'jsonData':f"{block_dict['jsonData']}"}
blocknumber_list.insert(0,block_dict['blockNumber'])
tokendb_set = set()
smartcontractdb_set = set()
for blockindex in blocknumber_list:
# Find the all the transactions that happened in this block
try:
block_tx_hashes = json.loads(lblocks_dict[str(blockindex)]['jsonData'])['tx']
except:
print(f"Block {blockindex} is not found in latestCache. Skipping this block")
continue
for txhash in block_tx_hashes:
# Get the transaction details
transaction = latestcache_session.query(LatestTransactions).filter(LatestTransactions.transactionHash == txhash).first()
transaction_data = json.loads(transaction.jsonData)
inputAddress, outputAddress = find_input_output_addresses(transaction_data)
parsed_flodata = literal_eval(transaction.parsedFloData)
tokenlist, contractlist = getDatabase_from_parsedFloData(parsed_flodata, inputAddress, outputAddress)
for token in tokenlist:
tokendb_set.add(token)
for contract in contractlist:
smartcontractdb_set.add(contract)
return tokendb_set, smartcontractdb_set
def initiate_rollback_process():
'''
tokendb_set, smartcontractdb_set = return_token_contract_set(rollback_block)
'''
# Connect to system.db
systemdb_session = create_database_session_orm('system_dbs', {'db_name': 'system'}, SystemBase)
db_names = systemdb_session.query(DatabaseTypeMapping).all()
for db in db_names:
if db.db_type in ['token', 'nft', 'infinite-token']:
if db.blockNumber > rollback_block:
delete_database(rollback_block, f"{db.db_name}")
else:
rollback_database(rollback_block, 'token', f"{db.db_name}")
elif db.db_type in ['smartcontract']:
if db.blockNumber > rollback_block:
delete_database(rollback_block, f"{db.db_name}")
else:
db_split = db.db_name.rsplit('-',1)
db_name = {'contract_name':db_split[0], 'contract_address':db_split[1]}
rollback_database(rollback_block, 'smartcontract', db_name)
'''
for token_db in tokendb_set:
token_session = create_database_session_orm('token', {'token_name': token_db}, TokenBase)
if token_session.query(TransactionHistory.blockNumber).first()[0] > rollback_block:
delete_database(rollback_block, token_db)
token_session.commit()
else:
rollback_database(rollback_block, 'token', token_db)
token_session.close()
for contract_db in smartcontractdb_set:
contract_session = create_database_session_orm('smartcontract', {'db_name': contract_db}, ContractBase)
if contract_session.query(TransactionHistory.blockNumber).first()[0] > rollback_block:
delete_database(rollback_block, contract_db)
contract_session.commit()
else:
rollback_database(rollback_block, 'smartcontract', contract_db)
contract_session.close()
'''
system_database_deletions(rollback_block)
# update lastblockscanned in system_dbs
latestCache_session = create_database_session_orm('system_dbs', {'db_name': 'latestCache'}, LatestCacheBase)
lastblockscanned = latestCache_session.query(LatestBlocks.blockNumber).order_by(LatestBlocks.id.desc()).first()[0]
latestCache_session.close()
systemdb_session = create_database_session_orm('system_dbs', {'db_name': 'system'}, SystemBase)
lastblockscanned_query = systemdb_session.query(SystemData).filter(SystemData.attribute=='lastblockscanned').first()
lastblockscanned_query.value = rollback_block
systemdb_session.commit()
systemdb_session.close()
if __name__ == "__main__":
systemdb_session = create_database_session_orm('system_dbs', {'db_name': 'system'}, SystemBase)
lastblockscanned_query = systemdb_session.query(SystemData).filter(SystemData.attribute=='lastblockscanned').first()
if(rollback_block > int(lastblockscanned_query.value)):
print('Rollback block is greater than the last scanned block\n Exiting ....')
sys.exit(0)
else:
initiate_rollback_process()