package morph import ( "fmt" 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/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" ) const defaultNameServiceDomainPrice = 10_0000_0000 const defaultNameServiceSysfee = 4000_0000 const defaultRegisterSysfee = 10_0000_0000 + defaultNameServiceDomainPrice func (c *initializeContext) setNNS() error { ctrPath, err := c.Command.Flags().GetString(contractsInitFlag) if err != nil { return fmt.Errorf("missing contracts path: %w", err) } cs, err := c.readContract(ctrPath, nnsContract) if err != nil { return err } h := state.CreateContractHash(c.CommitteeAcc.Contract.ScriptHash(), cs.NEF.Checksum, cs.Manifest.Name) ok, err := c.nnsRootRegistered(h) if err != nil { return err } else if !ok { bw := io.NewBufBinWriter() emit.AppCall(bw.BinWriter, h, "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 } } for _, ctrName := range contractList { cs, err := c.readContract(ctrPath, ctrName) if err != nil { return err } cs.Hash = state.CreateContractHash(c.CommitteeAcc.Contract.ScriptHash(), cs.NEF.Checksum, cs.Manifest.Name) domain := ctrName + ".neofs" if ok, err := c.nnsDomainAvailable(h, domain); err != nil { return err } else if !ok { continue } bw := io.NewBufBinWriter() emit.AppCall(bw.BinWriter, h, "register", callflag.All, domain, c.CommitteeAcc.Contract.ScriptHash()) emit.Opcodes(bw.BinWriter, opcode.ASSERT) emit.AppCall(bw.BinWriter, h, "setRecord", callflag.All, domain, int64(nns.TXT), cs.Hash.StringLE()) sysFee := int64(defaultRegisterSysfee + native.GASFactor) if err := c.sendCommitteeTx(bw.Bytes(), sysFee); err != nil { return err } } return c.awaitTx() } 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 (c *initializeContext) nnsDomainAvailable(nnsHash util.Uint160, domain string) (bool, error) { params := []smartcontract.Parameter{{Type: smartcontract.StringType, Value: domain}} res, err := c.Client.InvokeFunction(nnsHash, "isAvailable", params, nil) if err != nil { return false, err } if len(res.Stack) == 0 { return true, nil } if ok, err := res.Stack[0].TryBool(); err == nil { return ok, nil } return true, nil }