x/auth/ante: AccountKeeper expected interface used instead of the str…

CHANGELOG.md

@@ -217,6 +217,7 @@ functionality that requires an online connection.
 * (client) [\#5895](https://github.com/cosmos/cosmos-sdk/issues/5895) show config options in the config command's help screen.
 * (types/rest) [\#5900](https://github.com/cosmos/cosmos-sdk/pull/5900) Add Check*Error function family to spare developers from replicating tons of boilerplate code.
 * (x/evidence) [\#5952](https://github.com/cosmos/cosmos-sdk/pull/5952) Tendermint Consensus parameters can now be changed via parameter change proposals through `x/gov`.
+* (x/auth/ante) [\#6040](https://github.com/cosmos/cosmos-sdk/pull/6040) `AccountKeeper` interface used for `NewAnteHandler` and handler's decorators to add support of using custom `AccountKeeper` implementations.
 
 ## [v0.38.3] - 2020-04-09
 

x/auth/ante/ante.go

@@ -2,7 +2,6 @@ package ante
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/x/auth/keeper"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 	ibcante "github.com/cosmos/cosmos-sdk/x/ibc/ante"
 	ibckeeper "github.com/cosmos/cosmos-sdk/x/ibc/keeper"
@@ -12,7 +11,7 @@ import (
 // numbers, checks signatures & account numbers, and deducts fees from the first
 // signer.
 func NewAnteHandler(
-	ak keeper.AccountKeeper, bankKeeper types.BankKeeper, ibcKeeper ibckeeper.Keeper,
+	ak AccountKeeper, bankKeeper types.BankKeeper, ibcKeeper ibckeeper.Keeper,
 	sigGasConsumer SignatureVerificationGasConsumer,
 ) sdk.AnteHandler {
 	return sdk.ChainAnteDecorators(

x/auth/ante/basic.go

@@ -8,7 +8,6 @@ import (
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/multisig"
 
-	"github.com/cosmos/cosmos-sdk/x/auth/keeper"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 )
 
@@ -48,10 +47,10 @@ type TxWithMemo interface {
 // If memo is too large decorator returns with error, otherwise call next AnteHandler
 // CONTRACT: Tx must implement TxWithMemo interface
 type ValidateMemoDecorator struct {
-	ak keeper.AccountKeeper
+	ak AccountKeeper
 }
 
-func NewValidateMemoDecorator(ak keeper.AccountKeeper) ValidateMemoDecorator {
+func NewValidateMemoDecorator(ak AccountKeeper) ValidateMemoDecorator {
 	return ValidateMemoDecorator{
 		ak: ak,
 	}
@@ -86,10 +85,10 @@ func (vmd ValidateMemoDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate
 // CONTRACT: To use this decorator, signatures of transaction must be represented
 // as types.StdSignature otherwise simulate mode will incorrectly estimate gas cost.
 type ConsumeTxSizeGasDecorator struct {
-	ak keeper.AccountKeeper
+	ak AccountKeeper
 }
 
-func NewConsumeGasForTxSizeDecorator(ak keeper.AccountKeeper) ConsumeTxSizeGasDecorator {
+func NewConsumeGasForTxSizeDecorator(ak AccountKeeper) ConsumeTxSizeGasDecorator {
 	return ConsumeTxSizeGasDecorator{
 		ak: ak,
 	}

x/auth/ante/expected_keepers.go

@@ -0,0 +1,16 @@
+package ante
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/x/auth/exported"
+	"github.com/cosmos/cosmos-sdk/x/auth/types"
+)
+
+// AccountKeeper defines the contract needed for AccountKeeper related APIs.
+// Interface provides support to use non-sdk AccountKeeper for AnteHandler's decorators.
+type AccountKeeper interface {
+	GetParams(ctx sdk.Context) (params types.Params)
+	GetAccount(ctx sdk.Context, addr sdk.AccAddress) exported.Account
+	SetAccount(ctx sdk.Context, acc exported.Account)
+	GetModuleAddress(moduleName string) sdk.AccAddress
+}

x/auth/ante/fee.go

@@ -6,7 +6,6 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/x/auth/exported"
-	"github.com/cosmos/cosmos-sdk/x/auth/keeper"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 )
 
@@ -72,11 +71,11 @@ func (mfd MempoolFeeDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate b
 // Call next AnteHandler if fees successfully deducted
 // CONTRACT: Tx must implement FeeTx interface to use DeductFeeDecorator
 type DeductFeeDecorator struct {
-	ak         keeper.AccountKeeper
+	ak         AccountKeeper
 	bankKeeper types.BankKeeper
 }
 
-func NewDeductFeeDecorator(ak keeper.AccountKeeper, bk types.BankKeeper) DeductFeeDecorator {
+func NewDeductFeeDecorator(ak AccountKeeper, bk types.BankKeeper) DeductFeeDecorator {
 	return DeductFeeDecorator{
 		ak:         ak,
 		bankKeeper: bk,

x/auth/ante/sigverify.go

@@ -13,7 +13,6 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/x/auth/exported"
-	"github.com/cosmos/cosmos-sdk/x/auth/keeper"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 )
 
@@ -49,10 +48,10 @@ type SigVerifiableTx interface {
 // PubKeys must be set in context for all signers before any other sigverify decorators run
 // CONTRACT: Tx must implement SigVerifiableTx interface
 type SetPubKeyDecorator struct {
-	ak keeper.AccountKeeper
+	ak AccountKeeper
 }
 
-func NewSetPubKeyDecorator(ak keeper.AccountKeeper) SetPubKeyDecorator {
+func NewSetPubKeyDecorator(ak AccountKeeper) SetPubKeyDecorator {
 	return SetPubKeyDecorator{
 		ak: ak,
 	}
@@ -104,11 +103,11 @@ func (spkd SetPubKeyDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate b
 // CONTRACT: Pubkeys are set in context for all signers before this decorator runs
 // CONTRACT: Tx must implement SigVerifiableTx interface
 type SigGasConsumeDecorator struct {
-	ak             keeper.AccountKeeper
+	ak             AccountKeeper
 	sigGasConsumer SignatureVerificationGasConsumer
 }
 
-func NewSigGasConsumeDecorator(ak keeper.AccountKeeper, sigGasConsumer SignatureVerificationGasConsumer) SigGasConsumeDecorator {
+func NewSigGasConsumeDecorator(ak AccountKeeper, sigGasConsumer SignatureVerificationGasConsumer) SigGasConsumeDecorator {
 	return SigGasConsumeDecorator{
 		ak:             ak,
 		sigGasConsumer: sigGasConsumer,
@@ -159,10 +158,10 @@ func (sgcd SigGasConsumeDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simula
 // CONTRACT: Pubkeys are set in context for all signers before this decorator runs
 // CONTRACT: Tx must implement SigVerifiableTx interface
 type SigVerificationDecorator struct {
-	ak keeper.AccountKeeper
+	ak AccountKeeper
 }
 
-func NewSigVerificationDecorator(ak keeper.AccountKeeper) SigVerificationDecorator {
+func NewSigVerificationDecorator(ak AccountKeeper) SigVerificationDecorator {
 	return SigVerificationDecorator{
 		ak: ak,
 	}
@@ -226,10 +225,10 @@ func (svd SigVerificationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simul
 // a reliable way unless sequence numbers are managed and tracked manually by a
 // client. It is recommended to instead use multiple messages in a tx.
 type IncrementSequenceDecorator struct {
-	ak keeper.AccountKeeper
+	ak AccountKeeper
 }
 
-func NewIncrementSequenceDecorator(ak keeper.AccountKeeper) IncrementSequenceDecorator {
+func NewIncrementSequenceDecorator(ak AccountKeeper) IncrementSequenceDecorator {
 	return IncrementSequenceDecorator{
 		ak: ak,
 	}
@@ -264,10 +263,10 @@ func (isd IncrementSequenceDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, sim
 // Use this decorator to set parameterized limit on number of signatures in tx
 // CONTRACT: Tx must implement SigVerifiableTx interface
 type ValidateSigCountDecorator struct {
-	ak keeper.AccountKeeper
+	ak AccountKeeper
 }
 
-func NewValidateSigCountDecorator(ak keeper.AccountKeeper) ValidateSigCountDecorator {
+func NewValidateSigCountDecorator(ak AccountKeeper) ValidateSigCountDecorator {
 	return ValidateSigCountDecorator{
 		ak: ak,
 	}
@@ -340,7 +339,7 @@ func ConsumeMultisignatureVerificationGas(
 
 // GetSignerAcc returns an account for a given address that is expected to sign
 // a transaction.
-func GetSignerAcc(ctx sdk.Context, ak keeper.AccountKeeper, addr sdk.AccAddress) (exported.Account, error) {
+func GetSignerAcc(ctx sdk.Context, ak AccountKeeper, addr sdk.AccAddress) (exported.Account, error) {
 	if acc := ak.GetAccount(ctx, addr); acc != nil {
 		return acc, nil
 	}