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core,cli: disallow verify methods with non-bool returns

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This commit is contained in:
Evgeniy Stratonikov 2021-01-26 18:00:08 +03:00
parent 73f888f02e
commit dd1e2cefe4
2 changed files with 5 additions and 3 deletions
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5
cli/wallet/wallet.go
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@ -13,6 +13,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/wallet"
@ -420,8 +421,8 @@ func importDeployed(ctx *cli.Context) error {
return cli.NewExitError(fmt.Errorf("can't fetch contract info: %w", err), 1)
}
md := cs.Manifest.ABI.GetMethod(manifest.MethodVerify, -1)
if md == nil {
return cli.NewExitError("contract has no `verify` method", 1)
if md == nil || md.ReturnType != smartcontract.BoolType {
return cli.NewExitError("contract has no `verify` method with boolean return", 1)
}
acc.Address = address.Uint160ToString(cs.Hash)
acc.Contract.Script = cs.NEF.Script

3
pkg/core/blockchain.go
View file

@ -28,6 +28,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
"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/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
@ -1668,7 +1669,7 @@ func (bc *Blockchain) initVerificationVM(ic *interop.Context, hash util.Uint160,
return ErrUnknownVerificationContract
}
md := cs.Manifest.ABI.GetMethod(manifest.MethodVerify, -1)
if md == nil {
if md == nil || md.ReturnType != smartcontract.BoolType {
return ErrInvalidVerificationContract
}
initMD := cs.Manifest.ABI.GetMethod(manifest.MethodInit, 0)