forked from TrueCloudLab/frostfs-node
450 lines
11 KiB
Go
450 lines
11 KiB
Go
package morph
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import (
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"encoding/json"
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"errors"
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"fmt"
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"os"
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"sort"
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cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
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"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient/management"
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"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
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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/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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var errInvalidContainerResponse = errors.New("invalid response from container contract")
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func getContainerContractHash(cmd *cobra.Command, inv *invoker.Invoker) (util.Uint160, error) {
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s, err := cmd.Flags().GetString(containerContractFlag)
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var ch util.Uint160
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if err == nil {
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ch, err = util.Uint160DecodeStringLE(s)
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}
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if err != nil {
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r := management.NewReader(inv)
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nnsCs, err := r.GetContractByID(1)
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if err != nil {
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return util.Uint160{}, fmt.Errorf("can't get NNS contract state: %w", err)
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}
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ch, err = nnsResolveHash(inv, nnsCs.Hash, domainOf(containerContract))
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if err != nil {
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return util.Uint160{}, err
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}
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}
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return ch, nil
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}
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func iterateContainerList(inv *invoker.Invoker, ch util.Uint160, f func([]byte) error) error {
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sid, r, err := unwrap.SessionIterator(inv.Call(ch, "containersOf", ""))
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if err != nil {
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return fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
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}
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// Nothing bad, except live session on the server, do not report to the user.
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defer func() { _ = inv.TerminateSession(sid) }()
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items, err := inv.TraverseIterator(sid, &r, 0)
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for err == nil && len(items) != 0 {
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for j := range items {
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b, err := items[j].TryBytes()
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if err != nil {
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return fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
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}
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if err := f(b); err != nil {
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return err
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}
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}
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items, err = inv.TraverseIterator(sid, &r, 0)
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}
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return err
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}
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func dumpContainers(cmd *cobra.Command, _ []string) error {
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filename, err := cmd.Flags().GetString(containerDumpFlag)
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if err != nil {
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return fmt.Errorf("invalid filename: %w", err)
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}
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c, err := getN3Client(viper.GetViper())
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if err != nil {
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return fmt.Errorf("can't create N3 client: %w", err)
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}
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inv := invoker.New(c, nil)
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ch, err := getContainerContractHash(cmd, inv)
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if err != nil {
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return fmt.Errorf("unable to get contaract hash: %w", err)
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}
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isOK, err := getCIDFilterFunc(cmd)
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if err != nil {
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return err
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}
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f, err := os.OpenFile(filename, os.O_RDWR|os.O_TRUNC|os.O_CREATE, 0o660)
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if err != nil {
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return err
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}
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defer f.Close()
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_, err = f.Write([]byte{'['})
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if err != nil {
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return err
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}
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written := 0
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enc := json.NewEncoder(f)
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bw := io.NewBufBinWriter()
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iterErr := iterateContainerList(inv, ch, func(id []byte) error {
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if !isOK(id) {
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return nil
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}
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cnt, err := dumpSingleContainer(bw, ch, inv, id)
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if err != nil {
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return err
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}
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// Writing directly to the file is ok, because json.Encoder does no internal buffering.
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if written != 0 {
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_, err = f.Write([]byte{','})
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if err != nil {
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return err
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}
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}
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written++
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return enc.Encode(cnt)
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})
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if iterErr != nil {
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return iterErr
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}
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_, err = f.Write([]byte{']'})
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return err
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}
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func dumpSingleContainer(bw *io.BufBinWriter, ch util.Uint160, inv *invoker.Invoker, id []byte) (*Container, error) {
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bw.Reset()
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emit.AppCall(bw.BinWriter, ch, "get", callflag.All, id)
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emit.AppCall(bw.BinWriter, ch, "eACL", callflag.All, id)
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res, err := inv.Run(bw.Bytes())
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if err != nil {
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return nil, fmt.Errorf("can't get container info: %w", err)
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}
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if len(res.Stack) != 2 {
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return nil, fmt.Errorf("%w: expected 2 items on stack", errInvalidContainerResponse)
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}
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cnt := new(Container)
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err = cnt.FromStackItem(res.Stack[0])
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if err != nil {
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return nil, fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
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}
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ea := new(EACL)
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err = ea.FromStackItem(res.Stack[1])
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if err != nil {
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return nil, fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
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}
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if len(ea.Value) != 0 {
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cnt.EACL = ea
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}
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return cnt, nil
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}
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func listContainers(cmd *cobra.Command, _ []string) error {
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c, err := getN3Client(viper.GetViper())
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if err != nil {
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return fmt.Errorf("can't create N3 client: %w", err)
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}
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inv := invoker.New(c, nil)
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ch, err := getContainerContractHash(cmd, inv)
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if err != nil {
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return fmt.Errorf("unable to get contaract hash: %w", err)
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}
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return iterateContainerList(inv, ch, func(id []byte) error {
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var idCnr cid.ID
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err = idCnr.Decode(id)
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if err != nil {
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return fmt.Errorf("unable to decode container id: %w", err)
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}
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cmd.Println(idCnr)
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return nil
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})
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}
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func restoreContainers(cmd *cobra.Command, _ []string) error {
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filename, err := cmd.Flags().GetString(containerDumpFlag)
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if err != nil {
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return fmt.Errorf("invalid filename: %w", err)
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}
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wCtx, err := newInitializeContext(cmd, viper.GetViper())
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if err != nil {
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return err
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}
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defer wCtx.close()
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containers, err := parseContainers(filename)
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if err != nil {
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return err
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}
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ch, err := fetchContainerContractHash(wCtx)
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if err != nil {
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return err
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}
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isOK, err := getCIDFilterFunc(cmd)
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if err != nil {
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return err
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}
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err = restoreOrPutContainers(containers, isOK, cmd, wCtx, ch)
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if err != nil {
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return err
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}
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return wCtx.awaitTx()
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}
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func restoreOrPutContainers(containers []Container, isOK func([]byte) bool, cmd *cobra.Command, wCtx *initializeContext, ch util.Uint160) error {
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bw := io.NewBufBinWriter()
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for _, cnt := range containers {
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hv := hash.Sha256(cnt.Value)
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if !isOK(hv[:]) {
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continue
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}
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bw.Reset()
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restored, err := isContainerRestored(cmd, wCtx, ch, bw, hv)
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if err != nil {
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return err
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}
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if restored {
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continue
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}
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bw.Reset()
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putContainer(bw, ch, cnt)
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if bw.Err != nil {
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panic(bw.Err)
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}
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if err := wCtx.sendConsensusTx(bw.Bytes()); err != nil {
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return err
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}
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}
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return nil
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}
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func putContainer(bw *io.BufBinWriter, ch util.Uint160, cnt Container) {
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emit.AppCall(bw.BinWriter, ch, "put", callflag.All,
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cnt.Value, cnt.Signature, cnt.PublicKey, cnt.Token)
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if ea := cnt.EACL; ea != nil {
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emit.AppCall(bw.BinWriter, ch, "setEACL", callflag.All,
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ea.Value, ea.Signature, ea.PublicKey, ea.Token)
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}
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}
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func isContainerRestored(cmd *cobra.Command, wCtx *initializeContext, containerHash util.Uint160, bw *io.BufBinWriter, hashValue util.Uint256) (bool, error) {
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emit.AppCall(bw.BinWriter, containerHash, "get", callflag.All, hashValue.BytesBE())
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res, err := wCtx.Client.InvokeScript(bw.Bytes(), nil)
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if err != nil {
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return false, fmt.Errorf("can't check if container is already restored: %w", err)
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}
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if len(res.Stack) == 0 {
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return false, errors.New("empty stack")
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}
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old := new(Container)
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if err := old.FromStackItem(res.Stack[0]); err != nil {
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return false, fmt.Errorf("%w: %v", errInvalidContainerResponse, err)
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}
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if len(old.Value) != 0 {
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var id cid.ID
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id.SetSHA256(hashValue)
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cmd.Printf("Container %s is already deployed.\n", id)
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return true, nil
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}
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return false, nil
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}
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func parseContainers(filename string) ([]Container, error) {
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data, err := os.ReadFile(filename)
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if err != nil {
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return nil, fmt.Errorf("can't read dump file: %w", err)
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}
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var containers []Container
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err = json.Unmarshal(data, &containers)
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if err != nil {
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return nil, fmt.Errorf("can't parse dump file: %w", err)
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}
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return containers, nil
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}
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func fetchContainerContractHash(wCtx *initializeContext) (util.Uint160, error) {
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r := management.NewReader(wCtx.ReadOnlyInvoker)
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nnsCs, err := r.GetContractByID(1)
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if err != nil {
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return util.Uint160{}, fmt.Errorf("can't get NNS contract state: %w", err)
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}
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ch, err := nnsResolveHash(wCtx.ReadOnlyInvoker, nnsCs.Hash, domainOf(containerContract))
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if err != nil {
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return util.Uint160{}, fmt.Errorf("can't fetch container contract hash: %w", err)
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}
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return ch, nil
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}
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// Container represents container struct in contract storage.
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type Container struct {
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Value []byte `json:"value"`
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Signature []byte `json:"signature"`
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PublicKey []byte `json:"public_key"`
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Token []byte `json:"token"`
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EACL *EACL `json:"eacl"`
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}
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// EACL represents extended ACL struct in contract storage.
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type EACL struct {
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Value []byte `json:"value"`
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Signature []byte `json:"signature"`
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PublicKey []byte `json:"public_key"`
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Token []byte `json:"token"`
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}
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// ToStackItem implements stackitem.Convertible.
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func (c *Container) ToStackItem() (stackitem.Item, error) {
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return stackitem.NewStruct([]stackitem.Item{
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stackitem.NewByteArray(c.Value),
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stackitem.NewByteArray(c.Signature),
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stackitem.NewByteArray(c.PublicKey),
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stackitem.NewByteArray(c.Token),
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}), nil
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}
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// FromStackItem implements stackitem.Convertible.
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func (c *Container) FromStackItem(item stackitem.Item) error {
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arr, ok := item.Value().([]stackitem.Item)
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if !ok || len(arr) != 4 {
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return errors.New("invalid stack item type")
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}
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value, err := arr[0].TryBytes()
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if err != nil {
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return errors.New("invalid container value")
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}
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sig, err := arr[1].TryBytes()
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if err != nil {
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return errors.New("invalid container signature")
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}
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pub, err := arr[2].TryBytes()
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if err != nil {
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return errors.New("invalid container public key")
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}
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tok, err := arr[3].TryBytes()
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if err != nil {
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return errors.New("invalid container token")
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}
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c.Value = value
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c.Signature = sig
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c.PublicKey = pub
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c.Token = tok
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return nil
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}
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// ToStackItem implements stackitem.Convertible.
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func (c *EACL) ToStackItem() (stackitem.Item, error) {
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return stackitem.NewStruct([]stackitem.Item{
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stackitem.NewByteArray(c.Value),
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stackitem.NewByteArray(c.Signature),
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stackitem.NewByteArray(c.PublicKey),
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stackitem.NewByteArray(c.Token),
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}), nil
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}
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// FromStackItem implements stackitem.Convertible.
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func (c *EACL) FromStackItem(item stackitem.Item) error {
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arr, ok := item.Value().([]stackitem.Item)
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if !ok || len(arr) != 4 {
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return errors.New("invalid stack item type")
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}
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value, err := arr[0].TryBytes()
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if err != nil {
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return errors.New("invalid eACL value")
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}
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sig, err := arr[1].TryBytes()
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if err != nil {
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return errors.New("invalid eACL signature")
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}
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pub, err := arr[2].TryBytes()
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if err != nil {
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return errors.New("invalid eACL public key")
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}
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tok, err := arr[3].TryBytes()
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if err != nil {
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return errors.New("invalid eACL token")
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}
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c.Value = value
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c.Signature = sig
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c.PublicKey = pub
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c.Token = tok
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return nil
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}
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// getCIDFilterFunc returns filtering function for container IDs.
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// Raw byte slices are used because it works with structures returned
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// from contract.
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func getCIDFilterFunc(cmd *cobra.Command) (func([]byte) bool, error) {
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rawIDs, err := cmd.Flags().GetStringSlice(containerIDsFlag)
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if err != nil {
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return nil, err
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}
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if len(rawIDs) == 0 {
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return func([]byte) bool { return true }, nil
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}
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for i := range rawIDs {
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err := new(cid.ID).DecodeString(rawIDs[i])
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if err != nil {
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return nil, fmt.Errorf("can't parse CID %s: %w", rawIDs[i], err)
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}
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}
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sort.Strings(rawIDs)
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return func(rawID []byte) bool {
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var v [32]byte
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copy(v[:], rawID)
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var id cid.ID
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id.SetSHA256(v)
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idStr := id.EncodeToString()
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n := sort.Search(len(rawIDs), func(i int) bool { return rawIDs[i] >= idStr })
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return n < len(rawIDs) && rawIDs[n] == idStr
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}, nil
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}
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