frostfs-node/cmd/frostfs-adm/internal/modules/morph/dump_hashes.go

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package morph
import (
"bytes"
"errors"
"fmt"
"strings"
"text/tabwriter"
"git.frostfs.info/TrueCloudLab/frostfs-contract/nns"
morphUtil "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/util"
morphClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/management"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
"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/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neo-go/pkg/vm/vmstate"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
const lastGlagoliticLetter = 41
type contractDumpInfo struct {
hash util.Uint160
name string
version string
}
func dumpContractHashes(cmd *cobra.Command, _ []string) error {
c, err := morphUtil.GetN3Client(viper.GetViper())
if err != nil {
return fmt.Errorf("can't create N3 client: %w", err)
}
r := management.NewReader(invoker.New(c, nil))
cs, err := r.GetContractByID(1)
if err != nil {
return err
}
zone, _ := cmd.Flags().GetString(customZoneFlag)
if zone != "" {
return dumpCustomZoneHashes(cmd, cs.Hash, zone, c)
}
infos := []contractDumpInfo{{name: nnsContract, hash: cs.Hash}}
irSize := 0
for ; irSize < lastGlagoliticLetter; irSize++ {
ok, err := nnsIsAvailable(c, cs.Hash, getAlphabetNNSDomain(irSize))
if err != nil {
return err
} else if ok {
break
}
}
bw := io.NewBufBinWriter()
if irSize != 0 {
bw.Reset()
for i := 0; i < irSize; i++ {
emit.AppCall(bw.BinWriter, cs.Hash, "resolve", callflag.ReadOnly,
getAlphabetNNSDomain(i),
int64(nns.TXT))
}
alphaRes, err := c.InvokeScript(bw.Bytes(), nil)
if err != nil {
return fmt.Errorf("can't fetch info from NNS: %w", err)
}
for i := 0; i < irSize; i++ {
info := contractDumpInfo{name: fmt.Sprintf("alphabet %d", i)}
if h, err := morphUtil.ParseNNSResolveResult(alphaRes.Stack[i]); err == nil {
info.hash = h
}
infos = append(infos, info)
}
}
for _, ctrName := range contractList {
bw.Reset()
emit.AppCall(bw.BinWriter, cs.Hash, "resolve", callflag.ReadOnly,
domainOf(ctrName), int64(nns.TXT))
res, err := c.InvokeScript(bw.Bytes(), nil)
if err != nil {
return fmt.Errorf("can't fetch info from NNS: %w", err)
}
info := contractDumpInfo{name: ctrName}
if len(res.Stack) != 0 {
if h, err := morphUtil.ParseNNSResolveResult(res.Stack[0]); err == nil {
info.hash = h
}
}
infos = append(infos, info)
}
fillContractVersion(cmd, c, infos)
printContractInfo(cmd, infos)
return nil
}
func dumpCustomZoneHashes(cmd *cobra.Command, nnsHash util.Uint160, zone string, c morphUtil.Client) error {
const nnsMaxTokens = 100
inv := invoker.New(c, nil)
if !strings.HasPrefix(zone, ".") {
zone = "." + zone
}
var infos []contractDumpInfo
processItem := func(item stackitem.Item) {
bs, err := item.TryBytes()
if err != nil {
cmd.PrintErrf("Invalid NNS record: %v\n", err)
return
}
if !bytes.HasSuffix(bs, []byte(zone)) || bytes.HasPrefix(bs, []byte(morphClient.NNSGroupKeyName)) {
// Related https://github.com/nspcc-dev/neofs-contract/issues/316.
return
}
h, err := morphUtil.NNSResolveHash(inv, nnsHash, string(bs))
if err != nil {
cmd.PrintErrf("Could not resolve name %s: %v\n", string(bs), err)
return
}
infos = append(infos, contractDumpInfo{
hash: h,
name: strings.TrimSuffix(string(bs), zone),
})
}
script, err := smartcontract.CreateCallAndPrefetchIteratorScript(nnsHash, "tokens", nnsMaxTokens)
if err != nil {
return fmt.Errorf("create prefetch script: %w", err)
}
arr, sessionID, iter, err := unwrap.ArrayAndSessionIterator(inv.Run(script))
if err != nil {
if errors.Is(err, unwrap.ErrNoSessionID) {
items, err := unwrap.Array(inv.CallAndExpandIterator(nnsHash, "tokens", nnsMaxTokens))
if err != nil {
return fmt.Errorf("can't get a list of NNS domains: %w", err)
}
if len(items) == nnsMaxTokens {
cmd.PrintErrln("Provided RPC endpoint doesn't support sessions, some hashes might be lost.")
}
for i := range items {
processItem(items[i])
}
} else {
return err
}
} else {
for i := range arr {
processItem(arr[i])
}
defer func() {
_ = inv.TerminateSession(sessionID)
}()
items, err := inv.TraverseIterator(sessionID, &iter, nnsMaxTokens)
for err == nil && len(items) != 0 {
for i := range items {
processItem(items[i])
}
items, err = inv.TraverseIterator(sessionID, &iter, nnsMaxTokens)
}
if err != nil {
return fmt.Errorf("error during NNS domains iteration: %w", err)
}
}
fillContractVersion(cmd, c, infos)
printContractInfo(cmd, infos)
return nil
}
func parseContractVersion(item stackitem.Item) string {
bi, err := item.TryInteger()
if err != nil || bi.Sign() == 0 || !bi.IsInt64() {
return "unknown"
}
v := bi.Int64()
major := v / 1_000_000
minor := (v % 1_000_000) / 1000
patch := v % 1_000
return fmt.Sprintf("v%d.%d.%d", major, minor, patch)
}
func printContractInfo(cmd *cobra.Command, infos []contractDumpInfo) {
if len(infos) == 0 {
return
}
buf := bytes.NewBuffer(nil)
tw := tabwriter.NewWriter(buf, 0, 2, 2, ' ', 0)
for _, info := range infos {
if info.version == "" {
info.version = "unknown"
}
_, _ = tw.Write([]byte(fmt.Sprintf("%s\t(%s):\t%s\n",
info.name, info.version, info.hash.StringLE())))
}
_ = tw.Flush()
cmd.Print(buf.String())
}
func fillContractVersion(cmd *cobra.Command, c morphUtil.Client, infos []contractDumpInfo) {
bw := io.NewBufBinWriter()
sub := io.NewBufBinWriter()
for i := range infos {
if infos[i].hash.Equals(util.Uint160{}) {
emit.Int(bw.BinWriter, 0)
} else {
sub.Reset()
emit.AppCall(sub.BinWriter, infos[i].hash, "version", callflag.NoneFlag)
if sub.Err != nil {
panic(fmt.Errorf("BUG: can't create version script: %w", bw.Err))
}
script := sub.Bytes()
emit.Instruction(bw.BinWriter, opcode.TRY, []byte{byte(3 + len(script) + 2), 0})
bw.BinWriter.WriteBytes(script)
emit.Instruction(bw.BinWriter, opcode.ENDTRY, []byte{2 + 1})
emit.Opcodes(bw.BinWriter, opcode.PUSH0)
}
}
emit.Opcodes(bw.BinWriter, opcode.NOP) // for the last ENDTRY target
if bw.Err != nil {
panic(fmt.Errorf("BUG: can't create version script: %w", bw.Err))
}
res, err := c.InvokeScript(bw.Bytes(), nil)
if err != nil {
cmd.Printf("Can't fetch version from NNS: %v\n", err)
return
}
if res.State == vmstate.Halt.String() {
for i := range res.Stack {
infos[i].version = parseContractVersion(res.Stack[i])
}
}
}