remove shutdown module

app/app.go

@@ -337,7 +337,6 @@ func NewApp(logger log.Logger, db dbm.DB, traceStore io.Writer, loadLatest bool,
 	// initialize the app
 	app.SetInitChainer(app.InitChainer)
 	app.SetBeginBlocker(app.BeginBlocker)
-	// TODO app.SetAnteHandler(NewAnteHandler(app.accountKeeper, app.supplyKeeper, app.shutdownKeeper, auth.DefaultSigVerificationGasConsumer))
 	app.SetAnteHandler(auth.NewAnteHandler(app.accountKeeper, app.supplyKeeper, auth.DefaultSigVerificationGasConsumer))
 	app.SetEndBlocker(app.EndBlocker)
 
@@ -352,23 +351,6 @@ func NewApp(logger log.Logger, db dbm.DB, traceStore io.Writer, loadLatest bool,
 	return app
 }
 
-// func NewAnteHandler(ak auth.AccountKeeper, supplyKeeper supply.Keeper, shutdownKeeper shutdown.Keeper, sigGasConsumer SignatureVerificationGasConsumer) sdk.AnteHandler {
-// 	return sdk.ChainAnteDecorators(
-// 		auth.NewSetUpContextDecorator(), // outermost AnteDecorator. SetUpContext must be called first
-// 		shutdownAnte.NewDisableMsgDecorator(shutdownKeeper),
-// 		auth.NewMempoolFeeDecorator(),
-// 		auth.NewValidateBasicDecorator(),
-// 		auth.NewValidateMemoDecorator(ak),
-// 		auth.NewConsumeGasForTxSizeDecorator(ak),
-// 		auth.NewSetPubKeyDecorator(ak), // SetPubKeyDecorator must be called before all signature verification decorators
-// 		auth.NewValidateSigCountDecorator(ak),
-// 		auth.NewDeductFeeDecorator(ak, supplyKeeper),
-// 		auth.NewSigGasConsumeDecorator(ak, sigGasConsumer),
-// 		auth.NewSigVerificationDecorator(ak),
-// 		auth.NewIncrementSequenceDecorator(ak), // innermost AnteDecorator
-// 	)
-// }
-
 // custom tx codec
 func MakeCodec() *codec.Codec {
 	var cdc = codec.New()

x/shutdown/ante/ante.go

@@ -1,35 +0,0 @@
-package ante
-
-import (
-	"fmt"
-
-	"github.com/kava-labs/kava/x/shutdown/keeper"
-
-	sdk "github.com/cosmos/cosmos-sdk/types"
-)
-
-// DisableMsgDecorator errors if a tx contains a disallowed msg type and calls the next AnteHandler if all msgs are allowed
-type DisableMsgDecorator struct {
-	shutdownKeeper keeper.Keeper
-}
-
-func NewDisableMsgDecorator(shutdownKeeper keeper.Keeper) DisableMsgDecorator {
-	return DisableMsgDecorator{
-		shutdownKeeper: shutdownKeeper,
-	}
-}
-
-func (dmd DisableMsgDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (newCtx sdk.Context, err error) {
-
-	// get msg route, error if not allowed
-	disallowedRoutes := dmd.shutdownKeeper.GetMsgRoutes(ctx)
-	for _, m := range tx.GetMsgs() {
-		for _, r := range disallowedRoutes {
-			if r.Route == m.Route() && r.Msg == m.Type() {
-				return ctx, fmt.Errorf("route %s has been disabled, tx rejected", r)
-			}
-		}
-	}
-	// otherwise continue to next antehandler decorator
-	return next(ctx, tx, simulate)
-}

x/shutdown/keeper/keeper.go

@@ -1,19 +0,0 @@
-package keeper
-
-import (
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/kava-labs/kava/x/shutdown/types"
-)
-
-// Keeper stores routes that have been "broken"
-type Keeper struct {
-}
-
-func (k Keeper) GetMsgRoutes(ctx sdk.Context) []types.MsgRoute {
-	// TODO
-	return []types.MsgRoute{}
-}
-
-func (k Keeper) SetMsgRoutes(ctx sdk.Context, routes []types.MsgRoute) {
-	// TODO
-}

x/shutdown/proposal_handler.go

@@ -1,30 +0,0 @@
-package shutdown
-
-import (
-	"fmt"
-
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/x/gov"
-
-	"github.com/kava-labs/kava/x/shutdown/keeper"
-	"github.com/kava-labs/kava/x/shutdown/types"
-)
-
-func NewShutdownProposalHandler(k keeper.Keeper) gov.Handler {
-	return func(ctx sdk.Context, content gov.Content) sdk.Error {
-		switch c := content.(type) {
-		case types.ShutdownProposal:
-			return handleShutdownProposal(ctx, k, c)
-
-		default:
-			errMsg := fmt.Sprintf("unrecognized %s proposal content type: %T", types.ModuleName, c)
-			return sdk.ErrUnknownRequest(errMsg)
-		}
-	}
-}
-
-func handleShutdownProposal(ctx sdk.Context, k keeper.Keeper, c types.ShutdownProposal) sdk.Error {
-	// TODO validate proposal
-	k.SetMsgRoutes(ctx, c.MsgRoutes)
-	return nil
-}

x/shutdown/spec/README.md

@@ -1,18 +0,0 @@
-
-# `shutdown`
-
-## Table of Contents
-
-## Overview
-
-The `x/shutdown` module allows certain message types to be disabled based on governance votes.
-
-Msgs and routes are disabled via an antehandler decorator. The decorator checks incoming all txs and rejects them if they contain a disallowed msg type.
-Disallowed msg types are stored in a circuit breaker keeper.
-
-The list of disallowed msg types is updated via a custom governance proposal and handler.
-
-Design Alternatives:
-
-- store list of disallowed msg types in params, then we don't need the custom gov proposal
-- replace the app Router with a custom one to avoid using the antehandler - can't be done with current baseapp, but v0.38.x enables this. (https://github.com/cosmos/cosmos-sdk/issues/5455)

x/shutdown/types/types.go

@@ -1,62 +0,0 @@
-package types
-
-import (
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
-)
-
-type MsgRoute struct {
-	Route string
-	Msg   string // how best to store a Msg type?
-}
-
-const (
-	ProposalTypeShutdown = "Shutdown"
-)
-
-// Assert ShutdownProposal implements govtypes.Content at compile-time
-var _ govtypes.Content = ShutdownProposal{}
-
-type ShutdownProposal struct {
-	Title       string
-	Description string
-	MsgRoutes   []MsgRoute
-}
-
-// GetTitle returns the title of a community pool spend proposal.
-func (sp ShutdownProposal) GetTitle() string { return sp.Title }
-
-// GetDescription returns the description of a community pool spend proposal.
-func (sp ShutdownProposal) GetDescription() string { return sp.Description }
-
-// GetDescription returns the routing key of a community pool spend proposal.
-func (sp ShutdownProposal) ProposalRoute() string { return RouterKey }
-
-// ProposalType returns the type of a community pool spend proposal.
-func (sp ShutdownProposal) ProposalType() string { return ProposalTypeShutdown }
-
-// ValidateBasic runs basic stateless validity checks
-func (sp ShutdownProposal) ValidateBasic() sdk.Error {
-	err := govtypes.ValidateAbstract(DefaultCodespace, sp)
-	if err != nil {
-		return err
-	}
-	// TODO
-	return nil
-}
-
-// String implements the Stringer interface.
-func (sp ShutdownProposal) String() string {
-	// TODO
-	return ""
-}
-
-const (
-	DefaultCodespace sdk.CodespaceType = ModuleName
-
-	// ModuleName is the module name constant used in many places
-	ModuleName = "shutdown"
-
-	// RouterKey is the message route for distribution
-	RouterKey = ModuleName
-)