mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-29 23:33:37 +00:00
116 lines
2.8 KiB
Go
116 lines
2.8 KiB
Go
package smartcontract
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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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"github.com/nspcc-dev/neo-go/cli/cmdargs"
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"github.com/nspcc-dev/neo-go/cli/flags"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/urfave/cli"
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)
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func manifestAddGroup(ctx *cli.Context) error {
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if err := cmdargs.EnsureNone(ctx); err != nil {
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return err
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}
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sender, err := flags.ParseAddress(ctx.String("sender"))
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if err != nil {
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return cli.NewExitError(fmt.Errorf("invalid sender: %w", err), 1)
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}
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nf, _, err := readNEFFile(ctx.String("nef"))
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if err != nil {
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return cli.NewExitError(fmt.Errorf("can't read NEF file: %w", err), 1)
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}
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mPath := ctx.String("manifest")
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m, _, err := readManifest(mPath, util.Uint160{})
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if err != nil {
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return cli.NewExitError(fmt.Errorf("can't read contract manifest: %w", err), 1)
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}
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h := state.CreateContractHash(sender, nf.Checksum, m.Name)
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gAcc, w, err := getAccFromContext(ctx)
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if err != nil {
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return cli.NewExitError(fmt.Errorf("can't get account to sign group with: %w", err), 1)
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}
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defer w.Close()
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var found bool
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sig := gAcc.PrivateKey().Sign(h.BytesBE())
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pub := gAcc.PublicKey()
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for i := range m.Groups {
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if m.Groups[i].PublicKey.Equal(pub) {
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m.Groups[i].Signature = sig
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found = true
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break
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}
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}
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if !found {
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m.Groups = append(m.Groups, manifest.Group{
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PublicKey: pub,
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Signature: sig,
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})
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}
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rawM, err := json.Marshal(m)
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if err != nil {
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return cli.NewExitError(fmt.Errorf("can't marshal manifest: %w", err), 1)
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}
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err = os.WriteFile(mPath, rawM, os.ModePerm)
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if err != nil {
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return cli.NewExitError(fmt.Errorf("can't write manifest file: %w", err), 1)
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}
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return nil
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}
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func readNEFFile(filename string) (*nef.File, []byte, error) {
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if len(filename) == 0 {
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return nil, nil, errors.New("no nef file was provided")
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}
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f, err := os.ReadFile(filename)
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if err != nil {
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return nil, nil, err
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}
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nefFile, err := nef.FileFromBytes(f)
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if err != nil {
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return nil, nil, fmt.Errorf("can't parse NEF file: %w", err)
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}
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return &nefFile, f, nil
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}
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// readManifest unmarshalls manifest got from the provided filename and checks
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// it for validness against the provided contract hash. If empty hash is specified
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// then no hash-related manifest groups check is performed.
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func readManifest(filename string, hash util.Uint160) (*manifest.Manifest, []byte, error) {
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if len(filename) == 0 {
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return nil, nil, errNoManifestFile
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}
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manifestBytes, err := os.ReadFile(filename)
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if err != nil {
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return nil, nil, err
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}
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m := new(manifest.Manifest)
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err = json.Unmarshal(manifestBytes, m)
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if err != nil {
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return nil, nil, err
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}
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if err := m.IsValid(hash); err != nil {
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return nil, nil, fmt.Errorf("manifest is invalid: %w", err)
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}
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return m, manifestBytes, nil
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}
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