package core import ( "fmt" "github.com/tendermint/tendermint/account" . "github.com/tendermint/tendermint/common" ctypes "github.com/tendermint/tendermint/rpc/core/types" "github.com/tendermint/tendermint/state" "github.com/tendermint/tendermint/types" "github.com/tendermint/tendermint/vm" ) func toVMAccount(acc *account.Account) *vm.Account { return &vm.Account{ Address: LeftPadWord256(acc.Address), Balance: acc.Balance, Code: acc.Code, // This is crazy. Nonce: int64(acc.Sequence), StorageRoot: LeftPadWord256(acc.StorageRoot), Other: acc.PubKey, } } //----------------------------------------------------------------------------- // Run a contract's code on an isolated and unpersisted state // Cannot be used to create new contracts func Call(address, data []byte) (*ctypes.ResponseCall, error) { st := consensusState.GetState() // performs a copy cache := state.NewBlockCache(st) outAcc := cache.GetAccount(address) if outAcc == nil { return nil, fmt.Errorf("Account %x does not exist", address) } callee := toVMAccount(outAcc) caller := &vm.Account{Address: Zero256} txCache := state.NewTxCache(cache) params := vm.Params{ BlockHeight: int64(st.LastBlockHeight), BlockHash: LeftPadWord256(st.LastBlockHash), BlockTime: st.LastBlockTime.Unix(), GasLimit: 10000000, } vmach := vm.NewVM(txCache, params, caller.Address, nil) gas := int64(1000000000) ret, err := vmach.Call(caller, callee, callee.Code, data, 0, &gas) if err != nil { return nil, err } return &ctypes.ResponseCall{Return: ret}, nil } // Run the given code on an isolated and unpersisted state // Cannot be used to create new contracts func CallCode(code, data []byte) (*ctypes.ResponseCall, error) { st := consensusState.GetState() // performs a copy cache := mempoolReactor.Mempool.GetCache() callee := &vm.Account{Address: Zero256} caller := &vm.Account{Address: Zero256} txCache := state.NewTxCache(cache) params := vm.Params{ BlockHeight: int64(st.LastBlockHeight), BlockHash: LeftPadWord256(st.LastBlockHash), BlockTime: st.LastBlockTime.Unix(), GasLimit: 10000000, } vmach := vm.NewVM(txCache, params, caller.Address, nil) gas := int64(1000000000) ret, err := vmach.Call(caller, callee, code, data, 0, &gas) if err != nil { return nil, err } return &ctypes.ResponseCall{Return: ret}, nil } //----------------------------------------------------------------------------- func SignTx(tx types.Tx, privAccounts []*account.PrivAccount) (types.Tx, error) { // more checks? for i, privAccount := range privAccounts { if privAccount == nil || privAccount.PrivKey == nil { return nil, fmt.Errorf("Invalid (empty) privAccount @%v", i) } } switch tx.(type) { case *types.SendTx: sendTx := tx.(*types.SendTx) for i, input := range sendTx.Inputs { input.PubKey = privAccounts[i].PubKey input.Signature = privAccounts[i].Sign(config.GetString("chain_id"), sendTx) } case *types.CallTx: callTx := tx.(*types.CallTx) callTx.Input.PubKey = privAccounts[0].PubKey callTx.Input.Signature = privAccounts[0].Sign(config.GetString("chain_id"), callTx) case *types.BondTx: bondTx := tx.(*types.BondTx) // the first privaccount corresponds to the BondTx pub key. // the rest to the inputs bondTx.Signature = privAccounts[0].Sign(config.GetString("chain_id"), bondTx).(account.SignatureEd25519) for i, input := range bondTx.Inputs { input.PubKey = privAccounts[i+1].PubKey input.Signature = privAccounts[i+1].Sign(config.GetString("chain_id"), bondTx) } case *types.UnbondTx: unbondTx := tx.(*types.UnbondTx) unbondTx.Signature = privAccounts[0].Sign(config.GetString("chain_id"), unbondTx).(account.SignatureEd25519) case *types.RebondTx: rebondTx := tx.(*types.RebondTx) rebondTx.Signature = privAccounts[0].Sign(config.GetString("chain_id"), rebondTx).(account.SignatureEd25519) } return tx, nil }