neo-go/internal/testchain/transaction.go
Roman Khimov c942402957 blockchainer: drop Policer interface
We never use it as a proper interface, so it makes no sense keeping it this
way.
2022-01-12 00:58:03 +03:00

132 lines
4.2 KiB
Go

package testchain
import (
"encoding/json"
"fmt"
gio "io"
"github.com/nspcc-dev/neo-go/cli/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/compiler"
"github.com/nspcc-dev/neo-go/pkg/config"
"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/crypto/hash"
"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/manifest"
"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(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, confFile *string) (*transaction.Transaction, util.Uint160, []byte, error) {
// nef.NewFile() cares about version a lot.
config.Version = "0.90.0-test"
ne, di, err := compiler.CompileWithDebugInfo(name, r)
if err != nil {
return nil, util.Uint160{}, nil, err
}
o := &compiler.Options{
Name: name,
NoStandardCheck: true,
NoEventsCheck: true,
}
if confFile != nil {
conf, err := smartcontract.ParseContractConfig(*confFile)
if err != nil {
return nil, util.Uint160{}, nil, fmt.Errorf("failed to parse configuration: %w", err)
}
o.Name = conf.Name
o.ContractEvents = conf.Events
o.ContractSupportedStandards = conf.SupportedStandards
o.Permissions = make([]manifest.Permission, len(conf.Permissions))
for i := range conf.Permissions {
o.Permissions[i] = manifest.Permission(conf.Permissions[i])
}
o.SafeMethods = conf.SafeMethods
}
m, err := compiler.CreateManifest(di, o)
if err != nil {
return nil, util.Uint160{}, nil, fmt.Errorf("failed to create manifest: %w", err)
}
rawManifest, err := json.Marshal(m)
if err != nil {
return nil, util.Uint160{}, nil, err
}
neb, err := ne.Bytes()
if err != nil {
return nil, util.Uint160{}, nil, err
}
buf := io.NewBufBinWriter()
emit.AppCall(buf.BinWriter, bc.ManagementContractHash(), "deploy", callflag.All, neb, rawManifest)
if buf.Err != nil {
return nil, util.Uint160{}, nil, buf.Err
}
tx := transaction.New(buf.Bytes(), 100*native.GASFactor)
tx.Signers = []transaction.Signer{{Account: sender}}
h := state.CreateContractHash(tx.Sender(), ne.Checksum, name)
return tx, h, ne.Script, 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(hash.Hashable) []byte, verif []byte, txs ...*transaction.Transaction) {
for _, tx := range txs {
size := io.GetVarSize(tx)
netFee, sizeDelta := fee.Calculate(bc.GetBaseExecFee(), verif)
tx.NetworkFee += netFee
size += sizeDelta
tx.NetworkFee += int64(size) * bc.FeePerByte()
tx.Scripts = []transaction.Witness{{
InvocationScript: sign(tx),
VerificationScript: verif,
}}
}
}