neoneo-go/internal/testchain/transaction.go
Roman Khimov 054ca27e9c state: use checksums and names to calculate contract hashes
It allows to deploy the same NEF using one sender and get different contract
hashes. See neo-project/neo#2240.
2021-01-22 12:22:48 +03:00

117 lines
3.6 KiB
Go

package testchain
import (
"encoding/json"
gio "io"
"github.com/nspcc-dev/neo-go/pkg/compiler"
"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
"github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
"github.com/nspcc-dev/neo-go/pkg/core/fee"
"github.com/nspcc-dev/neo-go/pkg/core/native"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
)
var (
ownerHash = MultisigScriptHash()
ownerScript = MultisigVerificationScript()
)
// NewTransferFromOwner returns transaction transferring funds from NEO and GAS owner.
func NewTransferFromOwner(bc blockchainer.Blockchainer, contractHash, to util.Uint160, amount int64,
nonce, validUntil uint32) (*transaction.Transaction, error) {
w := io.NewBufBinWriter()
emit.AppCall(w.BinWriter, contractHash, "transfer", callflag.All, ownerHash, to, amount, nil)
emit.Opcodes(w.BinWriter, opcode.ASSERT)
if w.Err != nil {
return nil, w.Err
}
script := w.Bytes()
tx := transaction.New(netmode.UnitTestNet, script, 11000000)
tx.ValidUntilBlock = validUntil
tx.Nonce = nonce
tx.Signers = []transaction.Signer{{
Account: ownerHash,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
}}
return tx, SignTx(bc, tx)
}
// NewDeployTx returns new deployment tx for contract with name with Go code read from r.
func NewDeployTx(bc blockchainer.Blockchainer, name string, sender util.Uint160, r gio.Reader) (*transaction.Transaction, util.Uint160, error) {
// nef.NewFile() cares about version a lot.
config.Version = "0.90.0-test"
avm, di, err := compiler.CompileWithDebugInfo(name, r)
if err != nil {
return nil, util.Uint160{}, err
}
ne, err := nef.NewFile(avm)
if err != nil {
return nil, util.Uint160{}, err
}
m, err := di.ConvertToManifest(&compiler.Options{Name: name})
if err != nil {
return nil, util.Uint160{}, err
}
rawManifest, err := json.Marshal(m)
if err != nil {
return nil, util.Uint160{}, err
}
neb, err := ne.Bytes()
if err != nil {
return nil, util.Uint160{}, err
}
buf := io.NewBufBinWriter()
emit.AppCall(buf.BinWriter, bc.ManagementContractHash(), "deploy", callflag.All, neb, rawManifest)
if buf.Err != nil {
return nil, util.Uint160{}, buf.Err
}
tx := transaction.New(Network(), buf.Bytes(), 100*native.GASFactor)
tx.Signers = []transaction.Signer{{Account: sender}}
h := state.CreateContractHash(tx.Sender(), ne.Checksum, name)
return tx, h, nil
}
// SignTx signs provided transactions with validator keys.
func SignTx(bc blockchainer.Blockchainer, txs ...*transaction.Transaction) error {
signTxGeneric(bc, Sign, ownerScript, txs...)
return nil
}
// SignTxCommittee signs transactions by committee.
func SignTxCommittee(bc blockchainer.Blockchainer, txs ...*transaction.Transaction) error {
signTxGeneric(bc, SignCommittee, CommitteeVerificationScript(), txs...)
return nil
}
func signTxGeneric(bc blockchainer.Blockchainer, sign func([]byte) []byte, verif []byte, txs ...*transaction.Transaction) {
for _, tx := range txs {
size := io.GetVarSize(tx)
netFee, sizeDelta := fee.Calculate(bc.GetPolicer().GetBaseExecFee(), verif)
tx.NetworkFee += netFee
size += sizeDelta
tx.NetworkFee += int64(size) * bc.FeePerByte()
data := tx.GetSignedPart()
tx.Scripts = []transaction.Witness{{
InvocationScript: sign(data),
VerificationScript: verif,
}}
}
}