Beispiel #1
0
def test_deploy_and_invoke(deploy_script,
                           invoke_args,
                           wallet,
                           from_addr=None,
                           min_fee=DEFAULT_MIN_FEE,
                           invocation_test_mode=True,
                           debug_map=None,
                           invoke_attrs=None,
                           owners=None):
    bc = GetBlockchain()

    sn = bc._db.snapshot()

    accounts = DBCollection(bc._db, sn, DBPrefix.ST_Account, AccountState)
    assets = DBCollection(bc._db, sn, DBPrefix.ST_Asset, AssetState)
    validators = DBCollection(bc._db, sn, DBPrefix.ST_Validator,
                              ValidatorState)
    contracts = DBCollection(bc._db, sn, DBPrefix.ST_Contract, ContractState)
    storages = DBCollection(bc._db, sn, DBPrefix.ST_Storage, StorageItem)

    if settings.USE_DEBUG_STORAGE:
        debug_storage = DebugStorage.instance()
        debug_sn = debug_storage.db.snapshot()
        storages = DBCollection(debug_storage.db, debug_sn,
                                DBPrefix.ST_Storage, StorageItem)
        storages.DebugStorage = True

    dtx = InvocationTransaction()
    dtx.Version = 1
    dtx.outputs = []
    dtx.inputs = []
    dtx.scripts = []
    dtx.Script = binascii.unhexlify(deploy_script)

    if from_addr is not None:
        from_addr = lookup_addr_str(wallet, from_addr)

    dtx = wallet.MakeTransaction(tx=dtx, from_addr=from_addr)
    context = ContractParametersContext(dtx)
    wallet.Sign(context)
    dtx.scripts = context.GetScripts()

    script_table = CachedScriptTable(contracts)
    service = StateMachine(accounts, validators, assets, contracts, storages,
                           None)

    contract = wallet.GetDefaultContract()
    dtx.Attributes = [
        TransactionAttribute(usage=TransactionAttributeUsage.Script,
                             data=Crypto.ToScriptHash(contract.Script,
                                                      unhex=False))
    ]
    dtx.Attributes = make_unique_script_attr(dtx.Attributes)

    to_dispatch = []

    engine = ApplicationEngine(trigger_type=TriggerType.Application,
                               container=dtx,
                               table=script_table,
                               service=service,
                               gas=dtx.Gas,
                               testMode=True)

    engine.LoadScript(dtx.Script, False)

    # first we will execute the test deploy
    # then right after, we execute the test invoke

    d_success = engine.Execute()

    if d_success:

        items = engine.EvaluationStack.Items

        contract_state = None
        for i in items:
            if type(i) is ContractState:
                contract_state = i
                break
            elif type(i) is InteropInterface:
                item = i.GetInterface()
                if type(item) is ContractState:
                    contract_state = item
                    break

        shash = contract_state.Code.ScriptHash()

        invoke_args, neo_to_attach, gas_to_attach = get_asset_attachments(
            invoke_args)
        invoke_args, no_parse_addresses = get_parse_addresses(invoke_args)

        invoke_args.reverse()

        if '--i' in invoke_args:
            invoke_args = []
            for index, iarg in enumerate(contract_state.Code.ParameterList):
                param, abort = gather_param(index, iarg)
                if abort:
                    return None, [], 0, None
                else:
                    invoke_args.append(param)
            invoke_args.reverse()

        sb = ScriptBuilder()

        for p in invoke_args:
            item = parse_param(p, wallet, parse_addr=no_parse_addresses)
            if type(item) is list:
                item.reverse()
                listlength = len(item)
                for listitem in item:
                    subitem = parse_param(listitem,
                                          wallet,
                                          parse_addr=no_parse_addresses)
                    if type(subitem) is list:
                        subitem.reverse()
                        for listitem2 in subitem:
                            subsub = parse_param(listitem2,
                                                 wallet,
                                                 parse_addr=no_parse_addresses)
                            sb.push(subsub)
                        sb.push(len(subitem))
                        sb.Emit(PACK)
                    else:
                        sb.push(subitem)

                sb.push(listlength)
                sb.Emit(PACK)
            else:
                sb.push(item)

        sb.EmitAppCall(shash.Data)
        out = sb.ToArray()

        outputs = []

        if neo_to_attach:
            output = TransactionOutput(
                AssetId=Blockchain.SystemShare().Hash,
                Value=neo_to_attach,
                script_hash=contract_state.Code.ScriptHash(),
            )
            outputs.append(output)

        if gas_to_attach:
            output = TransactionOutput(
                AssetId=Blockchain.SystemCoin().Hash,
                Value=gas_to_attach,
                script_hash=contract_state.Code.ScriptHash())

            outputs.append(output)

        itx = InvocationTransaction()
        itx.Version = 1
        itx.outputs = outputs
        itx.inputs = []
        itx.scripts = []
        itx.Attributes = deepcopy(invoke_attrs) if invoke_attrs else []
        itx.Script = binascii.unhexlify(out)

        if len(outputs) < 1 and not owners:
            contract = wallet.GetDefaultContract()
            itx.Attributes.append(
                TransactionAttribute(usage=TransactionAttributeUsage.Script,
                                     data=contract.ScriptHash))
            itx.Attributes = make_unique_script_attr(itx.Attributes)

        itx = wallet.MakeTransaction(tx=itx, from_addr=from_addr)

        context = ContractParametersContext(itx)
        wallet.Sign(context)

        if owners:
            owners = list(owners)
            for owner in owners:
                itx.Attributes.append(
                    TransactionAttribute(
                        usage=TransactionAttributeUsage.Script, data=owner))
                itx.Attributes = make_unique_script_attr(itx.Attributes)
            context = ContractParametersContext(itx, isMultiSig=True)

        if context.Completed:
            itx.scripts = context.GetScripts()
        else:
            logger.warn(
                "Not gathering signatures for test build.  For a non-test invoke that would occur here."
            )
        #            if not gather_signatures(context, itx, owners):
        #                return None, [], 0, None

        #        print("gathered signatures %s " % itx.scripts)

        engine = ApplicationEngine(trigger_type=TriggerType.Application,
                                   container=itx,
                                   table=script_table,
                                   service=service,
                                   gas=itx.Gas,
                                   testMode=invocation_test_mode)

        engine.invocation_args = invoke_args
        engine.LoadScript(itx.Script, False)
        engine.LoadDebugInfoForScriptHash(debug_map, shash.Data)

        i_success = engine.Execute()

        service.ExecutionCompleted(engine, i_success)
        to_dispatch = to_dispatch + service.events_to_dispatch

        for event in to_dispatch:
            events.emit(event.event_type, event)

        if i_success:
            service.TestCommit()
            if len(service.notifications) > 0:

                for n in service.notifications:
                    Blockchain.Default().OnNotify(n)

            logger.info("Used %s Gas " % engine.GasConsumed().ToString())

            consumed = engine.GasConsumed() - Fixed8.FromDecimal(10)
            consumed = consumed.Ceil()

            if consumed <= Fixed8.Zero():
                consumed = min_fee

            total_ops = engine.ops_processed

            # set the amount of gas the tx will need
            itx.Gas = consumed
            itx.Attributes = []
            result = engine.EvaluationStack.Items
            return itx, result, total_ops, engine
        else:
            print("error executing invoke contract...")

    else:
        print("error executing deploy contract.....")

    service.ExecutionCompleted(engine, False, 'error')

    return None, [], 0, None
Beispiel #2
0
def TestInvokeContract(wallet,
                       args,
                       withdrawal_tx=None,
                       parse_params=True,
                       from_addr=None,
                       min_fee=DEFAULT_MIN_FEE,
                       invoke_attrs=None,
                       owners=None):

    BC = GetBlockchain()

    contract = BC.GetContract(args[0])

    if contract:
        #
        params = args[1:] if len(args) > 1 else []

        params, neo_to_attach, gas_to_attach = get_asset_attachments(params)
        params, parse_addresses = get_parse_addresses(params)
        params.reverse()

        if '--i' in params:
            params = []
            for index, iarg in enumerate(contract.Code.ParameterList):
                param, abort = gather_param(index, iarg)
                if abort:
                    return None, None, None, None
                params.append(param)
            params.reverse()

        sb = ScriptBuilder()

        for p in params:

            if parse_params:
                item = parse_param(p, wallet, parse_addr=parse_addresses)
            else:
                item = p
            if type(item) is list:
                item.reverse()
                listlength = len(item)
                for listitem in item:
                    subitem = parse_param(listitem,
                                          wallet,
                                          parse_addr=parse_addresses)
                    if type(subitem) is list:
                        subitem.reverse()
                        for listitem2 in subitem:
                            subsub = parse_param(listitem2,
                                                 wallet,
                                                 parse_addr=parse_addresses)
                            sb.push(subsub)
                        sb.push(len(subitem))
                        sb.Emit(PACK)
                    else:
                        sb.push(subitem)

                sb.push(listlength)
                sb.Emit(PACK)
            else:
                sb.push(item)

        sb.EmitAppCall(contract.Code.ScriptHash().Data)

        out = sb.ToArray()

        outputs = []

        if neo_to_attach:

            output = TransactionOutput(
                AssetId=Blockchain.SystemShare().Hash,
                Value=neo_to_attach,
                script_hash=contract.Code.ScriptHash(),
            )
            outputs.append(output)

        if gas_to_attach:

            output = TransactionOutput(AssetId=Blockchain.SystemCoin().Hash,
                                       Value=gas_to_attach,
                                       script_hash=contract.Code.ScriptHash())

            outputs.append(output)

        return test_invoke(out,
                           wallet,
                           outputs,
                           withdrawal_tx,
                           from_addr,
                           min_fee,
                           invoke_attrs=invoke_attrs,
                           owners=owners)

    else:

        print("Contract %s not found" % args[0])

    return None, None, None, None