fix(staking): validate MaxRate value of the commission

app/app.go

@@ -219,19 +219,24 @@ func NewApp(
 		app.BlockedAddrs(),
 	)
 
-	skeeper := stakingkeeper.NewKeeper(
-		appCodec,
-		app.keys[stakingtypes.StoreKey],
-		app.Keepers.Cosmos.Acct,
-		app.Keepers.Cosmos.Bank,
-		app.GetSubspace(stakingtypes.ModuleName),
-	)
+	// allocation of staking keeper is scoped deliberately,
+	// so it's being referenced by pointer within modules that need it
+	{
+		skeeper := stakingkeeper.NewKeeper(
+			appCodec,
+			app.keys[stakingtypes.StoreKey],
+			app.Keepers.Cosmos.Acct,
+			app.Keepers.Cosmos.Bank,
+			app.GetSubspace(stakingtypes.ModuleName),
+		)
+		app.Keepers.Cosmos.Staking = &skeeper
+	}
 
 	app.Keepers.Cosmos.Mint = mintkeeper.NewKeeper(
 		appCodec,
 		app.keys[minttypes.StoreKey],
 		app.GetSubspace(minttypes.ModuleName),
-		&skeeper,
+		app.Keepers.Cosmos.Staking,
 		app.Keepers.Cosmos.Acct,
 		app.Keepers.Cosmos.Bank,
 		authtypes.FeeCollectorName,
@@ -243,34 +248,40 @@ func NewApp(
 		app.GetSubspace(distrtypes.ModuleName),
 		app.Keepers.Cosmos.Acct,
 		app.Keepers.Cosmos.Bank,
-		&skeeper,
+		app.Keepers.Cosmos.Staking,
 		authtypes.FeeCollectorName,
 		app.ModuleAccountAddrs(),
 	)
 
 	app.Keepers.Cosmos.Slashing = slashingkeeper.NewKeeper(
 		appCodec,
 		app.keys[slashingtypes.StoreKey],
-		&skeeper,
+		app.Keepers.Cosmos.Staking,
 		app.GetSubspace(slashingtypes.ModuleName),
 	)
 
+	// register the staking hooks
+	// NOTE: stakingKeeper above is passed by reference, so that it will contain these hooks
+	app.Keepers.Cosmos.Staking.SetHooks(
+		stakingtypes.NewMultiStakingHooks(
+			app.Keepers.Cosmos.Distr.Hooks(),
+			app.Keepers.Cosmos.Slashing.Hooks(),
+		),
+	)
+
 	app.Keepers.Cosmos.Crisis = crisiskeeper.NewKeeper(
 		app.GetSubspace(crisistypes.ModuleName),
 		invCheckPeriod,
 		app.Keepers.Cosmos.Bank,
 		authtypes.FeeCollectorName,
 	)
 
-	app.Keepers.Cosmos.Upgrade = upgradekeeper.NewKeeper(skipUpgradeHeights, app.keys[upgradetypes.StoreKey], appCodec, homePath, app.BaseApp)
-
-	// register the staking hooks
-	// NOTE: stakingKeeper above is passed by reference, so that it will contain these hooks
-	app.Keepers.Cosmos.Staking = *skeeper.SetHooks(
-		stakingtypes.NewMultiStakingHooks(
-			app.Keepers.Cosmos.Distr.Hooks(),
-			app.Keepers.Cosmos.Slashing.Hooks(),
-		),
+	app.Keepers.Cosmos.Upgrade = upgradekeeper.NewKeeper(
+		skipUpgradeHeights,
+		app.keys[upgradetypes.StoreKey],
+		appCodec,
+		homePath,
+		app.BaseApp,
 	)
 
 	// register IBC Keeper
@@ -309,7 +320,7 @@ func NewApp(
 		app.GetSubspace(govtypes.ModuleName),
 		app.Keepers.Cosmos.Acct,
 		app.Keepers.Cosmos.Bank,
-		&skeeper,
+		app.Keepers.Cosmos.Staking,
 		govRouter,
 	)
 
@@ -339,7 +350,7 @@ func NewApp(
 	evidenceKeeper := evidencekeeper.NewKeeper(
 		appCodec,
 		app.keys[evidencetypes.StoreKey],
-		&app.Keepers.Cosmos.Staking,
+		app.Keepers.Cosmos.Staking,
 		app.Keepers.Cosmos.Slashing,
 	)
 
@@ -368,7 +379,7 @@ func NewApp(
 			// mint.NewAppModule(appCodec, app.Keepers.Cosmos.Mint, app.Keepers.Cosmos.Acct, nil),
 			slashing.NewAppModule(appCodec, app.Keepers.Cosmos.Slashing, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank, app.Keepers.Cosmos.Staking),
 			distr.NewAppModule(appCodec, app.Keepers.Cosmos.Distr, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank, app.Keepers.Cosmos.Staking),
-			staking.NewAppModule(appCodec, app.Keepers.Cosmos.Staking, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank),
+			staking.NewAppModule(appCodec, *app.Keepers.Cosmos.Staking, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank),
 			upgrade.NewAppModule(app.Keepers.Cosmos.Upgrade),
 			evidence.NewAppModule(app.Keepers.Cosmos.Evidence),
 			ibc.NewAppModule(app.Keepers.Cosmos.IBC),
@@ -414,9 +425,9 @@ func NewApp(
 			mint.NewAppModule(appCodec, app.Keepers.Cosmos.Mint, app.Keepers.Cosmos.Acct),
 			// todo akash-network/support#4
 			// mint.NewAppModule(appCodec, app.Keepers.Cosmos.Mint, app.Keepers.Cosmos.Acct, nil),
-			staking.NewAppModule(appCodec, app.Keepers.Cosmos.Staking, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank),
-			distr.NewAppModule(appCodec, app.Keepers.Cosmos.Distr, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank, app.Keepers.Cosmos.Staking),
-			slashing.NewAppModule(appCodec, app.Keepers.Cosmos.Slashing, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank, app.Keepers.Cosmos.Staking),
+			staking.NewAppModule(appCodec, *app.Keepers.Cosmos.Staking, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank),
+			distr.NewAppModule(appCodec, app.Keepers.Cosmos.Distr, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank, *app.Keepers.Cosmos.Staking),
+			slashing.NewAppModule(appCodec, app.Keepers.Cosmos.Slashing, app.Keepers.Cosmos.Acct, app.Keepers.Cosmos.Bank, *app.Keepers.Cosmos.Staking),
 			params.NewAppModule(app.Keepers.Cosmos.Params),
 			evidence.NewAppModule(app.Keepers.Cosmos.Evidence),
 			ibc.NewAppModule(app.Keepers.Cosmos.IBC),

app/decorators/min_commision.go

@@ -36,10 +36,11 @@
 
 func (min *MinCommissionDecorator) isValidMsg(ctx sdk.Context, m sdk.Msg) error {
 	var rate sdk.Dec
+	var maxRate *sdk.Dec
 
 	switch msg := m.(type) {
 	case *stakingtypes.MsgCreateValidator:
-
+		maxRate = &msg.Commission.MaxRate
 		rate = msg.Commission.Rate
 	case *stakingtypes.MsgEditValidator:
 		// if commission rate is nil, it means only
@@ -62,6 +63,10 @@
 		return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, fmt.Sprintf("commission can't be lower than %s%%", minRate))
 	}
 
+	if maxRate != nil && maxRate.LT(minRate) {
+		return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, fmt.Sprintf("commission max rate can't be lower than %s%%", minRate))
+	}
+
 	return nil
 }
 

app/export.go

@@ -44,7 +44,7 @@ func (app *AkashApp) ExportAppStateAndValidators(
 		return servertypes.ExportedApp{}, err
 	}
 
-	validators, err := staking.WriteValidators(ctx, app.Keepers.Cosmos.Staking)
+	validators, err := staking.WriteValidators(ctx, *app.Keepers.Cosmos.Staking)
 	if err != nil {
 		return servertypes.ExportedApp{}, err
 	}

app/sim_test.go

@@ -79,7 +79,7 @@ func TestFullAppSimulation(t *testing.T) {
 	require.NoError(t, err, "simulation setup failed")
 
 	defer func() {
-		db.Close()
+		_ = db.Close()
 		require.NoError(t, os.RemoveAll(dir))
 	}()
 

app/types/app.go

@@ -44,7 +44,7 @@ type AppKeepers struct {
 		FeeGrant             feegrantkeeper.Keeper
 		Bank                 bankkeeper.Keeper
 		Cap                  *capabilitykeeper.Keeper
-		Staking              stakingkeeper.Keeper
+		Staking              *stakingkeeper.Keeper
 		Slashing             slashingkeeper.Keeper
 		Mint                 mintkeeper.Keeper
 		Distr                distrkeeper.Keeper