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

336 lines
8.1 KiB
Go
Raw Normal View History

package morph
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"sort"
"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"
"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/stackitem"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var errInvalidContainerResponse = errors.New("invalid response from container contract")
func dumpContainers(cmd *cobra.Command, _ []string) error {
filename, err := cmd.Flags().GetString(containerDumpFlag)
if err != nil {
return fmt.Errorf("invalid filename: %w", err)
}
c, err := getN3Client(viper.GetViper())
if err != nil {
return fmt.Errorf("can't create N3 client: %w", err)
}
nnsCs, err := c.GetContractStateByID(1)
if err != nil {
return fmt.Errorf("can't get NNS contract state: %w", err)
}
var ch util.Uint160
s, err := cmd.Flags().GetString(containerContractFlag)
if err == nil {
ch, err = util.Uint160DecodeStringLE(s)
}
if err != nil {
ch, err = nnsResolveHash(c, nnsCs.Hash, containerContract+".neofs")
if err != nil {
return err
}
}
res, err := c.InvokeFunction(ch, "list",
[]smartcontract.Parameter{{Type: smartcontract.StringType, Value: ""}}, nil)
if err != nil {
return fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
}
var cids [][]byte
arr, ok := res.Stack[0].Value().([]stackitem.Item)
if !ok {
return fmt.Errorf("%w: not a struct", errInvalidContainerResponse)
}
for _, item := range arr {
id, err := item.TryBytes()
if err != nil {
return fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
}
cids = append(cids, id)
}
isOK, err := getCIDFilterFunc(cmd)
if err != nil {
return err
}
var containers []*Container
bw := io.NewBufBinWriter()
for _, id := range cids {
if !isOK(id) {
continue
}
bw.Reset()
emit.AppCall(bw.BinWriter, ch, "get", callflag.All, id)
emit.AppCall(bw.BinWriter, ch, "eACL", callflag.All, id)
res, err := c.InvokeScript(bw.Bytes(), nil)
if err != nil {
return fmt.Errorf("can't get container info: %w", err)
}
if len(res.Stack) != 2 {
return fmt.Errorf("%w: expected 2 items on stack", errInvalidContainerResponse)
}
cnt := new(Container)
err = cnt.FromStackItem(res.Stack[0])
if err != nil {
return fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
}
ea := new(EACL)
err = ea.FromStackItem(res.Stack[1])
if err != nil {
return fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
}
if len(ea.Value) != 0 {
cnt.EACL = ea
}
containers = append(containers, cnt)
}
out, err := json.Marshal(containers)
if err != nil {
return err
}
return ioutil.WriteFile(filename, out, 0o660)
}
func restoreContainers(cmd *cobra.Command, _ []string) error {
filename, err := cmd.Flags().GetString(containerDumpFlag)
if err != nil {
return fmt.Errorf("invalid filename: %w", err)
}
wCtx, err := newInitializeContext(cmd, viper.GetViper())
if err != nil {
return err
}
nnsCs, err := wCtx.Client.GetContractStateByID(1)
if err != nil {
return fmt.Errorf("can't get NNS contract state: %w", err)
}
ch, err := nnsResolveHash(wCtx.Client, nnsCs.Hash, containerContract+".neofs")
if err != nil {
return fmt.Errorf("can't fetch container contract hash: %w", err)
}
data, err := ioutil.ReadFile(filename)
if err != nil {
return fmt.Errorf("can't read dump file: %w", err)
}
var containers []Container
err = json.Unmarshal(data, &containers)
if err != nil {
return fmt.Errorf("can't parse dump file: %w", err)
}
isOK, err := getCIDFilterFunc(cmd)
if err != nil {
return err
}
bw := io.NewBufBinWriter()
for _, cnt := range containers {
hv := hash.Sha256(cnt.Value)
if !isOK(hv[:]) {
continue
}
bw.Reset()
emit.AppCall(bw.BinWriter, ch, "get", callflag.All, hv.BytesBE())
res, err := wCtx.Client.InvokeScript(bw.Bytes(), nil)
if err != nil {
return fmt.Errorf("can't check if container is already restored: %w", err)
}
if len(res.Stack) == 0 {
return errors.New("empty stack")
}
old := new(Container)
if err := old.FromStackItem(res.Stack[0]); err != nil {
return fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
}
if len(old.Value) != 0 {
id := cid.New()
id.SetSHA256(hv)
cmd.Printf("Container %s is already deployed.\n", id)
continue
}
bw.Reset()
emit.AppCall(bw.BinWriter, ch, "put", callflag.All,
cnt.Value, cnt.Signature, cnt.PublicKey, cnt.Token)
if ea := cnt.EACL; ea != nil {
emit.AppCall(bw.BinWriter, ch, "setEACL", callflag.All,
ea.Value, ea.Signature, ea.PublicKey, ea.Token)
}
if bw.Err != nil {
panic(bw.Err)
}
if err := wCtx.sendCommitteeTx(bw.Bytes(), -1); err != nil {
return err
}
}
return wCtx.awaitTx()
}
// Container represents container struct in contract storage.
type Container struct {
Value []byte `json:"value"`
Signature []byte `json:"signature"`
PublicKey []byte `json:"public_key"`
Token []byte `json:"token"`
EACL *EACL `json:"eacl"`
}
// EACL represents extended ACL struct in contract storage.
type EACL struct {
Value []byte `json:"value"`
Signature []byte `json:"signature"`
PublicKey []byte `json:"public_key"`
Token []byte `json:"token"`
}
// ToStackItem implements stackitem.Convertible.
func (c *Container) ToStackItem() (stackitem.Item, error) {
return stackitem.NewStruct([]stackitem.Item{
stackitem.NewByteArray(c.Value),
stackitem.NewByteArray(c.Signature),
stackitem.NewByteArray(c.PublicKey),
stackitem.NewByteArray(c.Token),
}), nil
}
// FromStackItem implements stackitem.Convertible.
func (c *Container) FromStackItem(item stackitem.Item) error {
arr, ok := item.Value().([]stackitem.Item)
if !ok || len(arr) != 4 {
return errors.New("invalid stack item type")
}
value, err := arr[0].TryBytes()
if err != nil {
return errors.New("invalid container value")
}
sig, err := arr[1].TryBytes()
if err != nil {
return errors.New("invalid container signature")
}
pub, err := arr[2].TryBytes()
if err != nil {
return errors.New("invalid container public key")
}
tok, err := arr[3].TryBytes()
if err != nil {
return errors.New("invalid container token")
}
c.Value = value
c.Signature = sig
c.PublicKey = pub
c.Token = tok
return nil
}
// ToStackItem implements stackitem.Convertible.
func (c *EACL) ToStackItem() (stackitem.Item, error) {
return stackitem.NewStruct([]stackitem.Item{
stackitem.NewByteArray(c.Value),
stackitem.NewByteArray(c.Signature),
stackitem.NewByteArray(c.PublicKey),
stackitem.NewByteArray(c.Token),
}), nil
}
// FromStackItem implements stackitem.Convertible.
func (c *EACL) FromStackItem(item stackitem.Item) error {
arr, ok := item.Value().([]stackitem.Item)
if !ok || len(arr) != 4 {
return errors.New("invalid stack item type")
}
value, err := arr[0].TryBytes()
if err != nil {
return errors.New("invalid eACL value")
}
sig, err := arr[1].TryBytes()
if err != nil {
return errors.New("invalid eACL signature")
}
pub, err := arr[2].TryBytes()
if err != nil {
return errors.New("invalid eACL public key")
}
tok, err := arr[3].TryBytes()
if err != nil {
return errors.New("invalid eACL token")
}
c.Value = value
c.Signature = sig
c.PublicKey = pub
c.Token = tok
return nil
}
// getCIDFilterFunc returns filtering function for container IDs.
// Raw byte slices are used because it works with structures returned
// from contract.
func getCIDFilterFunc(cmd *cobra.Command) (func([]byte) bool, error) {
rawIDs, err := cmd.Flags().GetStringSlice(containerIDsFlag)
if err != nil {
return nil, err
}
if len(rawIDs) == 0 {
return func([]byte) bool { return true }, nil
}
for i := range rawIDs {
err := cid.New().Parse(rawIDs[i])
if err != nil {
return nil, fmt.Errorf("can't parse CID %s: %w", rawIDs[i], err)
}
}
sort.Strings(rawIDs)
return func(rawID []byte) bool {
var v [32]byte
copy(v[:], rawID)
id := cid.New()
id.SetSHA256(v)
idStr := id.String()
n := sort.Search(len(rawIDs), func(i int) bool { return rawIDs[i] >= idStr })
return n < len(rawIDs) && rawIDs[n] == idStr
}, nil
}