244 lines
7.2 KiB
Go
244 lines
7.2 KiB
Go
package morph
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import (
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"encoding/hex"
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"errors"
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"fmt"
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"strconv"
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"strings"
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nns "github.com/nspcc-dev/neo-go/examples/nft-nd-nns"
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"github.com/nspcc-dev/neo-go/pkg/core/native"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/rpc/client"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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)
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const defaultNameServiceDomainPrice = 10_0000_0000
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const defaultRegisterSysfee = 10_0000_0000 + defaultNameServiceDomainPrice
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func (c *initializeContext) setNNS() error {
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nnsCs, err := c.Client.GetContractStateByID(1)
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if err != nil {
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return err
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}
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ok, err := c.nnsRootRegistered(nnsCs.Hash)
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if err != nil {
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return err
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} else if !ok {
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bw := io.NewBufBinWriter()
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emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
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"neofs", c.CommitteeAcc.Contract.ScriptHash(),
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"ops@nspcc.ru", int64(3600), int64(600), int64(604800), int64(3600))
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emit.Opcodes(bw.BinWriter, opcode.ASSERT)
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if err := c.sendCommitteeTx(bw.Bytes(), -1); err != nil {
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return fmt.Errorf("can't add domain root to NNS: %w", err)
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}
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if err := c.awaitTx(); err != nil {
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return err
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}
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}
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alphaCs := c.getContract(alphabetContract)
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for i, acc := range c.Accounts {
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alphaCs.Hash = state.CreateContractHash(acc.Contract.ScriptHash(), alphaCs.NEF.Checksum, alphaCs.Manifest.Name)
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domain := getAlphabetNNSDomain(i)
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if err := c.nnsRegisterDomain(nnsCs.Hash, alphaCs.Hash, domain); err != nil {
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return err
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}
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c.Command.Printf("NNS: Set %s -> %s\n", domain, alphaCs.Hash.StringLE())
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}
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for _, ctrName := range contractList {
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cs := c.getContract(ctrName)
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domain := ctrName + ".neofs"
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if err := c.nnsRegisterDomain(nnsCs.Hash, cs.Hash, domain); err != nil {
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return err
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}
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c.Command.Printf("NNS: Set %s -> %s\n", domain, cs.Hash.StringLE())
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}
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groupKey := c.ContractWallet.Accounts[0].PrivateKey().PublicKey()
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err = c.updateNNSGroup(nnsCs.Hash, groupKey)
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if err != nil {
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return err
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}
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c.Command.Printf("NNS: Set %s -> %s\n", groupKeyDomain, hex.EncodeToString(groupKey.Bytes()))
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return c.awaitTx()
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}
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func (c *initializeContext) updateNNSGroup(nnsHash util.Uint160, pub *keys.PublicKey) error {
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bw := io.NewBufBinWriter()
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sysFee, err := c.emitUpdateNNSGroupScript(bw, nnsHash, pub)
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if err != nil {
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return err
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}
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return c.sendCommitteeTx(bw.Bytes(), sysFee)
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}
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func (c *initializeContext) emitUpdateNNSGroupScript(bw *io.BufBinWriter, nnsHash util.Uint160, pub *keys.PublicKey) (int64, error) {
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isAvail, err := c.Client.NNSIsAvailable(nnsHash, groupKeyDomain)
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if err != nil {
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return 0, err
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}
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if !isAvail {
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currentPub, err := nnsResolveKey(c.Client, nnsHash, groupKeyDomain)
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if err != nil {
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return 0, err
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}
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if pub.Equal(currentPub) {
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return 0, nil
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}
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}
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sysFee := int64(native.GASFactor)
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if isAvail {
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emit.AppCall(bw.BinWriter, nnsHash, "register", callflag.All,
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groupKeyDomain, c.CommitteeAcc.Contract.ScriptHash(),
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"ops@nspcc.ru", int64(3600), int64(600), int64(604800), int64(3600))
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emit.Opcodes(bw.BinWriter, opcode.ASSERT)
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sysFee += defaultRegisterSysfee
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}
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emit.AppCall(bw.BinWriter, nnsHash, "addRecord", callflag.All,
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"group.neofs", int64(nns.TXT), hex.EncodeToString(pub.Bytes()))
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return sysFee, bw.Err
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}
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func getAlphabetNNSDomain(i int) string {
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return alphabetContract + strconv.FormatUint(uint64(i), 10) + ".neofs"
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}
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func (c *initializeContext) nnsRegisterDomainScript(nnsHash, expectedHash util.Uint160, domain string) ([]byte, error) {
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ok, err := c.Client.NNSIsAvailable(nnsHash, domain)
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if err != nil {
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return nil, err
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}
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bw := io.NewBufBinWriter()
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if ok {
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emit.AppCall(bw.BinWriter, nnsHash, "register", callflag.All,
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domain, c.CommitteeAcc.Contract.ScriptHash(),
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"ops@nspcc.ru", int64(3600), int64(600), int64(604800), int64(3600))
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emit.Opcodes(bw.BinWriter, opcode.ASSERT)
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} else {
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s, err := nnsResolveHash(c.Client, nnsHash, domain)
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if err != nil {
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return nil, err
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}
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if s == expectedHash {
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return nil, nil
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}
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}
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emit.AppCall(bw.BinWriter, nnsHash, "addRecord", callflag.All,
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domain, int64(nns.TXT), expectedHash.StringLE())
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if bw.Err != nil {
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panic(bw.Err)
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}
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return bw.Bytes(), nil
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}
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func (c *initializeContext) nnsRegisterDomain(nnsHash, expectedHash util.Uint160, domain string) error {
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script, err := c.nnsRegisterDomainScript(nnsHash, expectedHash, domain)
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if script == nil {
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return err
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}
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sysFee := int64(defaultRegisterSysfee + native.GASFactor)
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return c.sendCommitteeTx(script, sysFee)
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}
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func (c *initializeContext) nnsRootRegistered(nnsHash util.Uint160) (bool, error) {
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params := []smartcontract.Parameter{{Type: smartcontract.StringType, Value: "name.neofs"}}
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res, err := c.Client.InvokeFunction(nnsHash, "isAvailable", params, nil)
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if err != nil {
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return false, err
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}
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return res.State == vm.HaltState.String(), nil
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}
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var errMissingNNSRecord = errors.New("missing NNS record")
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// Returns errMissingNNSRecord if invocation fault exception contains "token not found".
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func nnsResolveHash(c *client.Client, nnsHash util.Uint160, domain string) (util.Uint160, error) {
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item, err := nnsResolve(c, nnsHash, domain)
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if err != nil {
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return util.Uint160{}, err
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}
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return parseNNSResolveResult(item)
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}
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func nnsResolve(c *client.Client, nnsHash util.Uint160, domain string) (stackitem.Item, error) {
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result, err := c.InvokeFunction(nnsHash, "resolve", []smartcontract.Parameter{
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{
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Type: smartcontract.StringType,
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Value: domain,
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},
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{
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Type: smartcontract.IntegerType,
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Value: int64(nns.TXT),
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},
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}, nil)
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if err != nil {
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return nil, fmt.Errorf("`resolve`: %w", err)
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}
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if result.State != vm.HaltState.String() {
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if strings.Contains(result.FaultException, "token not found") {
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return nil, errMissingNNSRecord
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}
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return nil, fmt.Errorf("invocation failed: %s", result.FaultException)
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}
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if len(result.Stack) == 0 {
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return nil, errors.New("result stack is empty")
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}
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return result.Stack[len(result.Stack)-1], nil
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}
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func nnsResolveKey(c *client.Client, nnsHash util.Uint160, domain string) (*keys.PublicKey, error) {
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item, err := nnsResolve(c, nnsHash, domain)
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if err != nil {
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return nil, err
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}
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arr, ok := item.Value().([]stackitem.Item)
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if !ok || len(arr) == 0 {
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return nil, errors.New("NNS record is missing")
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}
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bs, err := arr[0].TryBytes()
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if err != nil {
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return nil, errors.New("malformed response")
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}
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return keys.NewPublicKeyFromString(string(bs))
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}
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// parseNNSResolveResult parses the result of resolving NNS record.
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// It works with multiple formats (corresponding to multiple NNS versions).
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// If array of hashes is provided, it returns only the first one.
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func parseNNSResolveResult(res stackitem.Item) (util.Uint160, error) {
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if arr, ok := res.Value().([]stackitem.Item); ok {
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if len(arr) == 0 {
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return util.Uint160{}, errors.New("NNS record is missing")
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}
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res = arr[0]
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}
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bs, err := res.TryBytes()
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if err != nil {
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return util.Uint160{}, errors.New("malformed response")
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}
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return util.Uint160DecodeStringLE(string(bs))
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}
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