frostfs-node/cmd/neofs-adm/internal/modules/morph/initialize_nns.go

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package morph
import (
"errors"
"fmt"
"strconv"
nns "github.com/nspcc-dev/neo-go/examples/nft-nd-nns"
"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/io"
"github.com/nspcc-dev/neo-go/pkg/rpc/client"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
)
const defaultNameServiceDomainPrice = 10_0000_0000
const defaultNameServiceSysfee = 4000_0000
const defaultRegisterSysfee = 10_0000_0000 + defaultNameServiceDomainPrice
func (c *initializeContext) setNNS() error {
nnsCs := c.getContract(nnsContract)
ok, err := c.nnsRootRegistered(nnsCs.Hash)
if err != nil {
return err
} else if !ok {
bw := io.NewBufBinWriter()
emit.AppCall(bw.BinWriter, nnsCs.Hash, "addRoot", callflag.All, "neofs")
if err := c.sendCommitteeTx(bw.Bytes(), -1); err != nil {
return fmt.Errorf("can't add domain root to NNS: %w", err)
}
if err := c.awaitTx(); err != nil {
return err
}
}
alphaCs := c.getContract(alphabetContract)
for i, acc := range c.Accounts {
alphaCs.Hash = state.CreateContractHash(acc.Contract.ScriptHash(), alphaCs.NEF.Checksum, alphaCs.Manifest.Name)
domain := getAlphabetNNSDomain(i)
if err := c.nnsRegisterDomain(nnsCs.Hash, alphaCs.Hash, domain); err != nil {
return err
}
c.Command.Printf("NNS: Set %s -> %s\n", domain, alphaCs.Hash.StringLE())
}
for _, ctrName := range contractList {
cs := c.getContract(ctrName)
domain := ctrName + ".neofs"
if err := c.nnsRegisterDomain(nnsCs.Hash, cs.Hash, domain); err != nil {
return err
}
c.Command.Printf("NNS: Set %s -> %s\n", domain, cs.Hash.StringLE())
}
return c.awaitTx()
}
func getAlphabetNNSDomain(i int) string {
return alphabetContract + strconv.FormatUint(uint64(i), 10) + ".neofs"
}
func (c *initializeContext) nnsRegisterDomain(nnsHash, expectedHash util.Uint160, domain string) error {
ok, err := c.Client.NNSIsAvailable(nnsHash, domain)
if err != nil {
return err
}
bw := io.NewBufBinWriter()
if ok {
emit.AppCall(bw.BinWriter, nnsHash, "register", callflag.All,
domain, c.CommitteeAcc.Contract.ScriptHash(),
"ops@nspcc.ru", int64(3600), int64(600), int64(604800), int64(3600))
emit.Opcodes(bw.BinWriter, opcode.ASSERT)
} else {
s, err := nnsResolveHash(c.Client, nnsHash, domain)
if err != nil {
return err
}
if s != expectedHash {
return nil
}
}
emit.AppCall(bw.BinWriter, nnsHash, "addRecord", callflag.All,
domain, int64(nns.TXT), expectedHash.StringLE())
if bw.Err != nil {
panic(bw.Err)
}
sysFee := int64(defaultRegisterSysfee + native.GASFactor)
return c.sendCommitteeTx(bw.Bytes(), sysFee)
}
func (c *initializeContext) nnsRootRegistered(nnsHash util.Uint160) (bool, error) {
params := []smartcontract.Parameter{{Type: smartcontract.StringType, Value: "name.neofs"}}
res, err := c.Client.InvokeFunction(nnsHash, "isAvailable", params, nil)
if err != nil {
return false, err
}
return res.State == vm.HaltState.String(), nil
}
func nnsResolveHash(c *client.Client, nnsHash util.Uint160, domain string) (util.Uint160, error) {
result, err := c.InvokeFunction(nnsHash, "resolve", []smartcontract.Parameter{
{
Type: smartcontract.StringType,
Value: domain,
},
{
Type: smartcontract.IntegerType,
Value: int64(nns.TXT),
},
}, nil)
if err != nil {
return util.Uint160{}, fmt.Errorf("`resolve`: %w", err)
}
if result.State != vm.HaltState.String() {
return util.Uint160{}, fmt.Errorf("invocation failed: %s", result.FaultException)
}
if len(result.Stack) == 0 {
return util.Uint160{}, errors.New("result stack is empty")
}
return parseNNSResolveResult(result.Stack[len(result.Stack)-1])
}
// parseNNSResolveResult parses the result of resolving NNS record.
// It works with multiple formats (corresponding to multiple NNS versions).
// If array of hashes is provided, it returns only the first one.
func parseNNSResolveResult(res stackitem.Item) (util.Uint160, error) {
if arr, ok := res.Value().([]stackitem.Item); ok {
if len(arr) == 0 {
return util.Uint160{}, errors.New("NNS record is missing")
}
res = arr[0]
}
bs, err := res.TryBytes()
if err != nil {
return util.Uint160{}, errors.New("malformed response")
}
return util.Uint160DecodeStringLE(string(bs))
}