def regular_node_callback(data, peer_id=None): global kill_threads if kill_threads: return do_block_resend = False do_transaction_resend = True do_contract_resend = True sync_transaction = False sync_block = False sync_contract = False signed_contract_flag = False contract_transaction_flag = False pos_transaction_flag = False json_dic = json.loads(data) new_msg = message.Message.from_dict(json_dic) # sync block is the same as block, but they don't # need to be resend if new_msg.action == 'block_sync': new_msg.action = 'block' do_block_resend = False sync_block = True elif new_msg.action == 'transaction_sync' or new_msg.action == 'transaction_pos_sync' or new_msg.action == 'transaction_contract_sync': if new_msg.action == 'transaction_sync': new_msg.action = 'transaction' elif new_msg.action == 'transaction_pos_sync': new_msg.action = 'transaction_pos' elif new_msg.action == 'transaction_contract_sync': new_msg.action = 'transaction_contract' do_transaction_resend = False sync_transaction = True elif new_msg.action == 'contract_sync' or new_msg.action == 'contract_signed_sync': if new_msg.action == 'contract_sync': new_msg.action = 'contract' elif new_msg.action == 'contract_signed_sync': new_msg.action = 'contract_signed' do_contract_resend = False sync_contract = True # case to set flags for special types of transactions and contracts if new_msg.action == 'contract_signed': new_msg.action = 'contract' signed_contract_flag = True elif new_msg.action == 'transaction_contract': new_msg.action = 'transaction' contract_transaction_flag = True elif new_msg.action == 'transaction_pos': new_msg.action = 'transaction' pos_transaction_flag = True if new_msg.action == 'transaction': if contract_transaction_flag: print('\nContract Transaction') new_msg.data = ContractTransaction.from_dict(new_msg.data) object_to_check = ContractTransaction transaction_action = 'transaction_contract' elif pos_transaction_flag: print('\nPOS Transaction') new_msg.data = PosTransaction.from_dict(new_msg.data) object_to_check = PosTransaction transaction_action = 'transaction_pos' else: print('\nNormal Transaction') new_msg.data = Transaction.from_dict(new_msg.data) object_to_check = Transaction transaction_action = 'transaction' new_transaction = new_msg.data need_to_send = False transaction_lock.acquire() print('\nTransaction : {}'.format(new_transaction._hash)) if not check_if_object_exist(new_transaction._hash, object_to_check): if a_node.doing_transaction_sync and not sync_transaction: a_node.transaction_queue.append(new_transaction) print('Added transaction to the queue') else: rs = redis_service.RedisService() rs.store_object(new_transaction) need_to_send = True print('All good') else: print('Duplicate transaction') transaction_lock.release() if need_to_send and do_transaction_resend: send_a_transaction(new_transaction, action=transaction_action) elif new_msg.action == 'contract': if signed_contract_flag: print('\nSigned Contract') new_msg.data = SignedContract.from_dict(new_msg.data) object_to_check = SignedContract method_to_call = SignedContractService.store_signed_contract contract_action = 'contract_signed' else: print('\nNormal Contract') new_msg.data = Contract.from_dict(new_msg.data) object_to_check = Contract method_to_call = ContractService.store_contract contract_action = 'contract' new_contract = new_msg.data need_to_send = False contract_lock.acquire() print('Contract : {}'.format(new_contract._hash)) if not check_if_object_exist(new_contract._hash, object_to_check): if a_node.doing_contract_sync and not sync_contract: a_node.contract_queue.append([new_contract, method_to_call]) print('Added contract to the queue') else: method_to_call(new_contract) need_to_send = True print('All good') else: print('Duplicate contract') contract_lock.release() if need_to_send and do_contract_resend: send_a_contract(new_contract, action=contract_action) elif new_msg.action == 'transaction_sync_end': print('\n\nFinished transaction sync') a_node.doing_transaction_sync = False a_node.add_transactions_from_queue() elif new_msg.action == 'block_sync_end': print('\n\nFinished block sync') a_node.doing_blockchain_sync = False # after we have added all sync blocks # we need to add normal blocks # that were send while we where doing sync a_node.add_blocks_from_queue() elif new_msg.action == 'contract_sync_end': print('\n\nFinished contract sync') a_node.doing_contract_sync = False a_node.add_contracts_from_queue() elif new_msg.action == 'init_sync_contract': print('Contract sync request') mem_contracts = BaseObjectService.get_all_mempool_objects(Contract) print('I have {} contracts'.format(len(mem_contracts))) mem_signed_contracts = BaseObjectService.get_all_mempool_objects( SignedContract) print('I have {} signed contracts'.format(len(mem_signed_contracts))) contract_lock.acquire() for a_contract in mem_contracts: send_a_contract(a_contract, action='contract_sync', contract_target_peer_id=peer_id) for a_signed_contract in mem_signed_contracts: send_a_contract(a_signed_contract, action='contract_signed_sync', contract_target_peer_id=peer_id) ending_msg = message.Message(action='contract_sync_end', data='') json_dic = ending_msg.to_json(is_object=False) json_str = json.dumps(json_dic, sort_keys=True, separators=(',', ':')) a_node.connection_manager.send_msg(msg=json_str, target_peer_id=peer_id) contract_lock.release() elif new_msg.action == 'init_sync_trans': print('Transaction sync request') mem_transactions = TransactionService.get_all_mempool_transactions() print('I have {} mem transactions'.format(len(mem_transactions))) mem_pos_transactions = BaseObjectService.get_all_mempool_objects( PosTransaction) print('I have {} mem pos transactions'.format( len(mem_pos_transactions))) mem_contract_transactions = BaseObjectService.get_all_mempool_objects( ContractTransaction) print('I have {} mem contract transactions'.format( len(mem_contract_transactions))) transaction_lock.acquire() for a_transaction in mem_transactions: send_a_transaction(a_transaction, action='transaction_sync', transaction_target_peer_id=peer_id) for a_pos_transaction in mem_pos_transactions: send_a_transaction(a_pos_transaction, action='transaction_pos_sync', transaction_target_peer_id=peer_id) for a_contract_transaction in mem_contract_transactions: send_a_transaction(a_contract_transaction, action='transaction_contract_sync', transaction_target_peer_id=peer_id) ending_msg = message.Message(action='transaction_sync_end', data='') json_dic = ending_msg.to_json(is_object=False) json_str = json.dumps(json_dic, sort_keys=True, separators=(',', ':')) a_node.connection_manager.send_msg(msg=json_str, target_peer_id=peer_id) transaction_lock.release() elif new_msg.action == 'init_sync': print('\nGot init sync, height is {}'.format(new_msg.data)) peer_height = new_msg.data my_height = BlockService.get_max_height() # only do sync if we need to send blocks to a peer if peer_height < my_height: print('My height is higher, {}'.format(my_height)) bs = dal_service_block_service.BlockService() list_of_blocks = bs.get_blocks_after_height(peer_height) block_lock.acquire() for a_block in list_of_blocks: send_a_block(a_block, action='block_sync', block_target_peer_id=peer_id) ending_msg = message.Message(action='block_sync_end', data='') json_dic = ending_msg.to_json(is_object=False) json_str = json.dumps(json_dic, sort_keys=True, separators=(',', ':')) a_node.connection_manager.send_msg(msg=json_str, target_peer_id=peer_id) block_lock.release() else: print('Same height') ending_msg = message.Message(action='block_sync_end', data='') json_dic = ending_msg.to_json(is_object=False) json_str = json.dumps(json_dic, sort_keys=True, separators=(',', ':')) a_node.connection_manager.send_msg(msg=json_str, target_peer_id=peer_id) elif new_msg.action == 'block': block_service = BlockService() new_block = Block.from_dict(new_msg.data) bs = dal_service_block_service.BlockService() need_to_send = False need_to_mine_new = False block_lock.acquire() print('\nBlock : {}'.format(new_block._hash)) # if the node is doing blockchain sync # and this block is not sync block # we need to add it to the queue if a_node.doing_blockchain_sync and not sync_block: a_node.block_queue.append(new_block) result_list = [] else: if Miner.validate_incoming_block(new_block): result_list = block_service.add_block_to_chain(new_block) if result_list: need_to_mine_new = True else: result_list = [] if result_list: need_to_send = True print('All good') else: if a_node.doing_blockchain_sync and not sync_block: print('Added block to a queue') else: print('Duplicate block') block_lock.release() if need_to_send and do_block_resend: send_a_block(new_block) need_to_mine_new = False if need_to_mine_new: for new_block_callback in new_block_callbacks: new_block_callback(new_block)
def wallet_callback(wallet_sock): while True: data = a_node.connection_manager.server.recv_msg( client_socket=wallet_sock) json_dic = json.loads(data) new_msg = message.Message.from_dict(json_dic) print(new_msg.action) if new_msg.action == 'get_user_info': pending = [] transaction = [] user_trans_history, transaction_balance = TransactionService.get_transactions_by_public_key( new_msg.data, True) balances = BlockService.get_all_balances() user_balance = balances.get(new_msg.data, 0) for trans in user_trans_history: if (trans.is_mempool == 1): pending.append(trans.get_sendable()) else: transaction.append(trans.get_sendable()) string_user_info_json = build_return_json([ ("pending", pending), ("transaction", transaction), ("amount", user_balance) ]) #print(string_user_info_json) a_node.connection_manager.server.send_msg( data=string_user_info_json, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == 'send_tx': t = Transaction.from_dict(new_msg.data) trans_signable = t.get_signable() trans_signable_json = json.dumps(trans_signable, sort_keys=True, separators=(',', ':')) status = EcdsaHashing.verify_signature_hex(t.from_addr, t.signature, trans_signable_json) if status == True: rs = redis_service.RedisService() transaction_lock.acquire() rs.store_object(t) transaction_lock.release() send_a_transaction(t) a_node.connection_manager.server.send_msg( data="Transaction Successful", client_socket=wallet_sock) else: a_node.connection_manager.server.send_msg( data="Transaction Failed", client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == 'send_ctx': ctx = ContractTransaction.from_dict(new_msg.data) trans_signable = ctx.get_signable() trans_signable_json = json.dumps(trans_signable, sort_keys=True, separators=(',', ':')) status = EcdsaHashing.verify_signature_hex(ctx.from_addr, ctx.signature, trans_signable_json) if status == True: rs = redis_service.RedisService() transaction_lock.acquire() rs.store_object(ctx) transaction_lock.release() send_a_transaction(ctx, action='transaction_contract') a_node.connection_manager.server.send_msg( data="Contract Transaction Successful", client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) else: a_node.connection_manager.server.send_msg( data="Contract Transaction Failed", client_socket=wallet_sock) elif new_msg.action == "get_all_ip": node_obj_list = a_node.connection_manager.peer_list ip_list = [node.get_ip_address() for node in node_obj_list] json_ip_list_str_return = build_return_json([("ipaddress_list", ip_list)]) print(json_ip_list_str_return) a_node.connection_manager.server.send_msg( data=json_ip_list_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == "get_contracts": contracts_filter = get_contracts_list(new_msg.data) contracts = ContractService.get_contracts_by_filter( contracts_filter, False) new_contracts = [contract.get_sendable() for contract in contracts] json_str_return = build_return_json([("available_contracts", new_contracts)]) a_node.connection_manager.server.send_msg( data=json_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == "get_signed_contracts": signed_contracts_filter = get_contracts_list(new_msg.data, contract_type=2) signed_contracts = SignedContractService.get_signed_contracts_by_filter( signed_contracts_filter, False) new_signed_contracts = [ contract.get_sendable() for contract in signed_contracts ] json_str_return = build_return_json([("signed_contracts", new_signed_contracts)]) a_node.connection_manager.server.send_msg( data=json_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == "publish_contract": c = Contract.from_dict(new_msg.data) contract_signable_json = c.get_signable() contract_signable_json_str = json.dumps(contract_signable_json, sort_keys=True, separators=(',', ':')) status = EcdsaHashing.verify_signature_hex( c.owner, c.signature, contract_signable_json_str) if status == True: contract_lock.acquire() ContractService.store_contract(c) contract_lock.release() send_a_contract(c) a_node.connection_manager.server.send_msg( data="Contract Successfully Created", client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) else: a_node.connection_manager.server.send_msg( data="Contract Cannot be created", client_socket=wallet_sock) elif new_msg.action == "subscribe_to_contract": sc = SignedContract.from_dict(new_msg.data) signed_contract_signable_json = sc.get_signable() signed_contract_signable_json_str = json.dumps( signed_contract_signable_json, sort_keys=True, separators=(',', ':')) status = EcdsaHashing.verify_signature_hex( sc.from_addr, sc.signature, signed_contract_signable_json_str) if status == True: contract_lock.acquire() SignedContractService.store_signed_contract(sc) contract_lock.release() send_a_contract(sc, action='contract_signed') a_node.connection_manager.server.send_msg( data="Successfully Subscribed", client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) else: a_node.connection_manager.server.send_msg( data="Cannot Subscribed", client_socket=wallet_sock) #the a list of user inside your contracts elif new_msg.action == "get_all_user_partipation_contract": user_contracts_sub = SignedContractService.get_all_signed_contracts_by_owner( new_msg.data["userPartipication"]) new_user_contracts_sub = [ contract.get_sendable() for contract in user_contracts_sub ] json_str_return = build_return_json([("contract_subscription", new_user_contracts_sub)]) a_node.connection_manager.server.send_msg( data=json_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) pass #The user contract that they created elif new_msg.action == "get_user_contracts": all_contract = ContractService.get_all_contracts_by_owner( new_msg.data["userPublicKey"]) new_contracts = [ contract.get_sendable() for contract in all_contract ] json_str_return = build_return_json([("contract_owned", new_contracts)]) a_node.connection_manager.server.send_msg( data=json_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == "get_bitcoin_price": rs = redis_service.RedisService() r = rs._connect() price_time = r.zrange('price_stamps', -1, -1, withscores=True) price = float(price_time[0][0]) height = BlockService.get_max_height() json_str_return = build_return_json([("bitcoinPrice", str(price)), ("height", str(height))]) a_node.connection_manager.server.send_msg( data=json_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == "get_contract_subscription": scs = SignedContractService.get_all_signed_contracts_by_from_addr( new_msg.data["userPublicKey"]) new_contracts = [contract.get_sendable() for contract in scs] json_str_return = build_return_json([("user_contract_subscription", new_contracts)]) a_node.connection_manager.server.send_msg( data=json_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == "get_contracts_and_signed_contract_info": balances = BlockService.get_all_balances() #all contract owned all_contract = ContractService.get_all_contracts_by_owner( new_msg.data["userPublicKey"]) all_contracts_str = [ contract.get_sendable() for contract in all_contract ] #signed contract signed_contracts_sub = SignedContractService.get_all_signed_contracts_by_owner( new_msg.data["userPublicKey"]) signed_contracts_sub_str = [ contract.get_sendable() for contract in signed_contracts_sub ] # balances new_dict = {} for signed_contract in signed_contracts_sub: b = balances.get(signed_contract._hash, (0, 0)) new_dict[signed_contract._hash] = b #history contract_transaction_history = ContractTransactionService.get_contract_transactions_from_public_key( new_msg.data["userPublicKey"], False) contract_transaction_history_str = [ contract.get_sendable() for contract in contract_transaction_history ] json_str_return = build_return_json([ ("contract_owned", all_contracts_str), ("contract_subscription", signed_contracts_sub_str), ("transaction_history", contract_transaction_history_str), ('balances', new_dict) ]) a_node.connection_manager.server.send_msg( data=json_str_return, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == "get_signed_by_contract_hash": # signed contracts signed_contracts = SignedContractService.get_all_signed_contracts_by_contract_hash( new_msg.data['_hash']) signed_contracts_str = [ sc.get_sendable() for sc in signed_contracts ] # contract contract = ContractService.get_contract_by_hash( new_msg.data['_hash']) contract_str = contract.get_sendable() json_str = build_return_json([('contract', contract_str), ('signed_contracts', signed_contracts_str)]) a_node.connection_manager.server.send_msg( data=json_str, client_socket=wallet_sock) a_node.connection_manager.server.send_msg( data="end", client_socket=wallet_sock) elif new_msg.action == 'exit': break else: a_node.connection_manager.server.send_msg( data="Bad Data", client_socket=wallet_sock) a_node.connection_manager.server.close_client(client_socket=wallet_sock)