package validation import ( "context" "github.com/ipfs/go-cid" "golang.org/x/xerrors" vchain "github.com/filecoin-project/chain-validation/pkg/chain" vactors "github.com/filecoin-project/chain-validation/pkg/state/actors" vaddress "github.com/filecoin-project/chain-validation/pkg/state/address" vtypes "github.com/filecoin-project/chain-validation/pkg/state/types" "github.com/filecoin-project/go-address" "github.com/filecoin-project/lotus/chain/actors" "github.com/filecoin-project/lotus/chain/types" ) type Signer interface { Sign(ctx context.Context, addr vaddress.Address, msg []byte) (*types.Signature, error) } type MessageFactory struct { signer Signer } var _ vchain.MessageFactory = &MessageFactory{} func NewMessageFactory(signer Signer) *MessageFactory { return &MessageFactory{signer} } func (mf *MessageFactory) MakeMessage(from, to vaddress.Address, method vchain.MethodID, nonce uint64, value, gasPrice vtypes.BigInt, gasLimit vtypes.GasUnit, params []byte) (interface{}, error) { fromDec, err := address.NewFromBytes(from.Bytes()) if err != nil { return nil, err } toDec, err := address.NewFromBytes(to.Bytes()) if err != nil { return nil, err } valueDec := types.BigInt{value.Int} if int(method) >= len(methods) { return nil, xerrors.Errorf("No method name for method %v", method) } methodId := methods[method] msg := &types.Message{ toDec, fromDec, nonce, valueDec, types.BigInt{gasPrice.Int}, types.NewInt(uint64(gasLimit)), methodId, params, } return msg, nil } func (mf *MessageFactory) FromSingletonAddress(addr vactors.SingletonActorID) vaddress.Address { return fromSingletonAddress(addr) } func (mf *MessageFactory) FromActorCodeCid(code vactors.ActorCodeID) cid.Cid { return fromActorCode(code) } // Maps method enumeration values to method names. // This will change to a mapping to method ids when method dispatch is updated to use integers. var methods = []uint64{ vchain.NoMethod: 0, vchain.InitExec: actors.IAMethods.Exec, vchain.StoragePowerConstructor: actors.SPAMethods.Constructor, vchain.StoragePowerCreateStorageMiner: actors.SPAMethods.CreateStorageMiner, vchain.StoragePowerUpdatePower: actors.SPAMethods.UpdateStorage, vchain.StorageMinerUpdatePeerID: actors.MAMethods.UpdatePeerID, vchain.StorageMinerGetOwner: actors.MAMethods.GetOwner, vchain.StorageMinerGetPower: actors.MAMethods.GetPower, vchain.StorageMinerGetWorkerAddr: actors.MAMethods.GetWorkerAddr, vchain.StorageMinerGetPeerID: actors.MAMethods.GetPeerID, vchain.StorageMinerGetSectorSize: actors.MAMethods.GetSectorSize, vchain.MultiSigConstructor: actors.MultiSigMethods.MultiSigConstructor, vchain.MultiSigPropose: actors.MultiSigMethods.Propose, vchain.MultiSigApprove: actors.MultiSigMethods.Approve, vchain.MultiSigCancel: actors.MultiSigMethods.Cancel, vchain.MultiSigClearCompleted: actors.MultiSigMethods.ClearCompleted, vchain.MultiSigAddSigner: actors.MultiSigMethods.AddSigner, vchain.MultiSigRemoveSigner: actors.MultiSigMethods.RemoveSigner, vchain.MultiSigSwapSigner: actors.MultiSigMethods.SwapSigner, vchain.MultiSigChangeRequirement: actors.MultiSigMethods.ChangeRequirement, // More to follow... }