refactor: Revert middlewares to antehandlers (part 1/2: baseapp) (#11979

)

## Description

We decided to remove middlewares, and revert to antehandlers (exactly like in v045) for this release. A better middleware solution will be implemented after v046.

ref: #11955 

Because this refactor is big, so I decided to cut it into two. This PR is part 1 of 2:
- part 1: Revert baseapp and middlewares to v0.45.4
- part 2: Add posthandler, tips, priority

---
 Suggestion for reviewers:

This PR might still be hard to review though. I think it's easier to actually review the diff between v0.45.4 and this PR:
- `git difftool -d v0.45.4..am/revert-045-baseapp baseapp`
  - most important parts to review: runTx, runMsgs
- `git difftool -d v0.45.4..am/revert-045-baseapp x/auth/ante`
  - only cosmetic changes
- `git difftool -d v0.45.4..am/revert-045-baseapp simapp`



---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

CHANGELOG.md

@@ -138,12 +138,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * [\#10248](https://github.com/cosmos/cosmos-sdk/pull/10248) Remove unused `KeyPowerReduction` variable from x/staking types.
 * (x/bank) [\#9832](https://github.com/cosmos/cosmos-sdk/pull/9832) `AddressFromBalancesStore` renamed to `AddressAndDenomFromBalancesStore`.
 * (tests) [\#9938](https://github.com/cosmos/cosmos-sdk/pull/9938) `simapp.Setup` accepts additional `testing.T` argument.
-* (baseapp) [\#9920](https://github.com/cosmos/cosmos-sdk/pull/9920) BaseApp `{Check,Deliver,Simulate}Tx` methods are now replaced by a middleware stack.
-    * Replace the Antehandler interface with the `tx.Handler` and `tx.Middleware` interfaces.
-    * Replace `baseapp.SetAnteHandler` with `baseapp.SetTxHandler`.
-    * Move Msg routers from BaseApp to middlewares.
-    * Move Baseapp panic recovery into a middleware.
-    * Rename simulation helper methods `baseapp.{Check,Deliver}` to `baseapp.Sim{Check,Deliver}**`.
+* (baseapp) [\#11979](https://github.com/cosmos/cosmos-sdk/pull/11979) Rename baseapp simulation helper methods `baseapp.{Check,Deliver}` to `baseapp.Sim{Check,Deliver}`.
 * (x/gov) [\#10373](https://github.com/cosmos/cosmos-sdk/pull/10373) Removed gov `keeper.{MustMarshal, MustUnmarshal}`.
 * [\#10348](https://github.com/cosmos/cosmos-sdk/pull/10348) StdSignBytes takes a new argument of type `*tx.Tip` for signing over tips using LEGACY_AMINO_JSON.
 * [\#10208](https://github.com/cosmos/cosmos-sdk/pull/10208) The `x/auth/signing.Tx` interface now also includes a new `GetTip() *tx.Tip` method for verifying tipped transactions. The `x/auth/types` expected BankKeeper interface now expects the `SendCoins` method too.

baseapp/abci.go

@@ -17,9 +17,9 @@ import (
 
 	"github.com/cosmos/cosmos-sdk/codec"
 	snapshottypes "github.com/cosmos/cosmos-sdk/snapshots/types"
+	"github.com/cosmos/cosmos-sdk/telemetry"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/cosmos/cosmos-sdk/types/tx"
 )
 
 // Supported ABCI Query prefixes
@@ -233,8 +233,8 @@ func (app *BaseApp) EndBlock(req abci.RequestEndBlock) (res abci.ResponseEndBloc
 
 // CheckTx implements the ABCI interface and executes a tx in CheckTx mode. In
 // CheckTx mode, messages are not executed. This means messages are only validated
-// and only the wired middlewares are executed. State is persisted to the BaseApp's
-// internal CheckTx state if the middlewares' CheckTx pass. Otherwise, the ResponseCheckTx
+// and only the AnteHandler is executed. State is persisted to the BaseApp's
+// internal CheckTx state if the AnteHandler passes. Otherwise, the ResponseCheckTx
 // will contain releveant error information. Regardless of tx execution outcome,
 // the ResponseCheckTx will contain relevant gas execution context.
 func (app *BaseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
@@ -251,18 +251,18 @@ func (app *BaseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
 		panic(fmt.Sprintf("unknown RequestCheckTx type: %s", req.Type))
 	}
 
-	ctx := app.getContextForTx(mode, req.Tx)
-	res, checkRes, err := app.txHandler.CheckTx(ctx, tx.Request{TxBytes: req.Tx}, tx.RequestCheckTx{Type: req.Type})
+	gInfo, result, anteEvents, err := app.runTx(mode, req.Tx)
 	if err != nil {
-		return sdkerrors.ResponseCheckTx(err, uint64(res.GasUsed), uint64(res.GasWanted), app.trace)
+		return sdkerrors.ResponseCheckTxWithEvents(err, gInfo.GasWanted, gInfo.GasUsed, anteEvents, app.trace)
 	}
 
-	abciRes, err := convertTxResponseToCheckTx(res, checkRes)
-	if err != nil {
-		return sdkerrors.ResponseCheckTx(err, uint64(res.GasUsed), uint64(res.GasWanted), app.trace)
+	return abci.ResponseCheckTx{
+		GasWanted: int64(gInfo.GasWanted), // TODO: Should type accept unsigned ints?
+		GasUsed:   int64(gInfo.GasUsed),   // TODO: Should type accept unsigned ints?
+		Log:       result.Log,
+		Data:      result.Data,
+		Events:    sdk.MarkEventsToIndex(result.Events, app.indexEvents),
 	}
-
-	return abciRes
 }
 
 // DeliverTx implements the ABCI interface and executes a tx in DeliverTx mode.
@@ -271,28 +271,29 @@ func (app *BaseApp) CheckTx(req abci.RequestCheckTx) abci.ResponseCheckTx {
 // Regardless of tx execution outcome, the ResponseDeliverTx will contain relevant
 // gas execution context.
 func (app *BaseApp) DeliverTx(req abci.RequestDeliverTx) abci.ResponseDeliverTx {
-	var abciRes abci.ResponseDeliverTx
+	gInfo := sdk.GasInfo{}
+	resultStr := "successful"
+
 	defer func() {
-		for _, streamingListener := range app.abciListeners {
-			if err := streamingListener.ListenDeliverTx(app.deliverState.ctx, req, abciRes); err != nil {
-				app.logger.Error("DeliverTx listening hook failed", "err", err)
-			}
-		}
+		telemetry.IncrCounter(1, "tx", "count")
+		telemetry.IncrCounter(1, "tx", resultStr)
+		telemetry.SetGauge(float32(gInfo.GasUsed), "tx", "gas", "used")
+		telemetry.SetGauge(float32(gInfo.GasWanted), "tx", "gas", "wanted")
 	}()
 
-	ctx := app.getContextForTx(runTxModeDeliver, req.Tx)
-	res, err := app.txHandler.DeliverTx(ctx, tx.Request{TxBytes: req.Tx})
+	gInfo, result, anteEvents, err := app.runTx(runTxModeDeliver, req.Tx)
 	if err != nil {
-		abciRes = sdkerrors.ResponseDeliverTx(err, uint64(res.GasUsed), uint64(res.GasWanted), app.trace)
-		return abciRes
+		resultStr = "failed"
+		return sdkerrors.ResponseDeliverTxWithEvents(err, gInfo.GasWanted, gInfo.GasUsed, anteEvents, app.trace)
 	}
 
-	abciRes, err = convertTxResponseToDeliverTx(res)
-	if err != nil {
-		return sdkerrors.ResponseDeliverTx(err, uint64(res.GasUsed), uint64(res.GasWanted), app.trace)
+	return abci.ResponseDeliverTx{
+		GasWanted: int64(gInfo.GasWanted), // TODO: Should type accept unsigned ints?
+		GasUsed:   int64(gInfo.GasUsed),   // TODO: Should type accept unsigned ints?
+		Log:       result.Log,
+		Data:      result.Data,
+		Events:    sdk.MarkEventsToIndex(result.Events, app.indexEvents),
 	}
-
-	return abciRes
 }
 
 // Commit implements the ABCI interface. It will commit all state that exists in
@@ -853,37 +854,3 @@ func SplitABCIQueryPath(requestPath string) (path []string) {
 
 	return path
 }
-
-// makeABCIData generates the Data field to be sent to ABCI Check/DeliverTx.
-func makeABCIData(txRes tx.Response) ([]byte, error) {
-	return proto.Marshal(&sdk.TxMsgData{MsgResponses: txRes.MsgResponses})
-}
-
-// convertTxResponseToCheckTx converts a tx.Response into a abci.ResponseCheckTx.
-func convertTxResponseToCheckTx(txRes tx.Response, checkRes tx.ResponseCheckTx) (abci.ResponseCheckTx, error) {
-	data, err := makeABCIData(txRes)
-	if err != nil {
-		return abci.ResponseCheckTx{}, nil
-	}
-
-	return abci.ResponseCheckTx{
-		Data:     data,
-		Log:      txRes.Log,
-		Events:   txRes.Events,
-		Priority: checkRes.Priority,
-	}, nil
-}
-
-// convertTxResponseToDeliverTx converts a tx.Response into a abci.ResponseDeliverTx.
-func convertTxResponseToDeliverTx(txRes tx.Response) (abci.ResponseDeliverTx, error) {
-	data, err := makeABCIData(txRes)
-	if err != nil {
-		return abci.ResponseDeliverTx{}, nil
-	}
-
-	return abci.ResponseDeliverTx{
-		Data:   data,
-		Log:    txRes.Log,
-		Events: txRes.Events,
-	}, nil
-}

baseapp/abci_test.go

@@ -1,14 +1,14 @@
-package baseapp_test
+package baseapp
 
 import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
 	abci "github.com/tendermint/tendermint/abci/types"
+	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
 	tmprototypes "github.com/tendermint/tendermint/proto/tendermint/types"
 	dbm "github.com/tendermint/tm-db"
 
-	"github.com/cosmos/cosmos-sdk/baseapp"
 	pruningtypes "github.com/cosmos/cosmos-sdk/pruning/types"
 	"github.com/cosmos/cosmos-sdk/snapshots"
 	snapshottypes "github.com/cosmos/cosmos-sdk/snapshots/types"
@@ -24,81 +24,81 @@ func TestGetBlockRentionHeight(t *testing.T) {
 	require.NoError(t, err)
 
 	testCases := map[string]struct {
-		bapp         *baseapp.BaseApp
+		bapp         *BaseApp
 		maxAgeBlocks int64
 		commitHeight int64
 		expected     int64
 	}{
 		"defaults": {
-			bapp:         baseapp.NewBaseApp(name, logger, db),
+			bapp:         NewBaseApp(name, logger, db, nil),
 			maxAgeBlocks: 0,
 			commitHeight: 499000,
 			expected:     0,
 		},
 		"pruning unbonding time only": {
-			bapp:         baseapp.NewBaseApp(name, logger, db, baseapp.SetMinRetainBlocks(1)),
+			bapp:         NewBaseApp(name, logger, db, nil, SetMinRetainBlocks(1)),
 			maxAgeBlocks: 362880,
 			commitHeight: 499000,
 			expected:     136120,
 		},
 		"pruning iavl snapshot only": {
-			bapp: baseapp.NewBaseApp(
-				name, logger, db,
-				baseapp.SetPruning(pruningtypes.NewPruningOptions(pruningtypes.PruningNothing)),
-				baseapp.SetMinRetainBlocks(1),
-				baseapp.SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(10000, 1)),
+			bapp: NewBaseApp(
+				name, logger, db, nil,
+				SetPruning(pruningtypes.NewPruningOptions(pruningtypes.PruningNothing)),
+				SetMinRetainBlocks(1),
+				SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(10000, 1)),
 			),
 			maxAgeBlocks: 0,
 			commitHeight: 499000,
 			expected:     489000,
 		},
 		"pruning state sync snapshot only": {
-			bapp: baseapp.NewBaseApp(
-				name, logger, db,
-				baseapp.SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
-				baseapp.SetMinRetainBlocks(1),
+			bapp: NewBaseApp(
+				name, logger, db, nil,
+				SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
+				SetMinRetainBlocks(1),
 			),
 			maxAgeBlocks: 0,
 			commitHeight: 499000,
 			expected:     349000,
 		},
 		"pruning min retention only": {
-			bapp: baseapp.NewBaseApp(
-				name, logger, db,
-				baseapp.SetMinRetainBlocks(400000),
+			bapp: NewBaseApp(
+				name, logger, db, nil,
+				SetMinRetainBlocks(400000),
 			),
 			maxAgeBlocks: 0,
 			commitHeight: 499000,
 			expected:     99000,
 		},
 		"pruning all conditions": {
-			bapp: baseapp.NewBaseApp(
-				name, logger, db,
-				baseapp.SetPruning(pruningtypes.NewCustomPruningOptions(0, 0)),
-				baseapp.SetMinRetainBlocks(400000),
-				baseapp.SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
+			bapp: NewBaseApp(
+				name, logger, db, nil,
+				SetPruning(pruningtypes.NewCustomPruningOptions(0, 0)),
+				SetMinRetainBlocks(400000),
+				SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
 			),
 			maxAgeBlocks: 362880,
 			commitHeight: 499000,
 			expected:     99000,
 		},
 		"no pruning due to no persisted state": {
-			bapp: baseapp.NewBaseApp(
-				name, logger, db,
-				baseapp.SetPruning(pruningtypes.NewCustomPruningOptions(0, 0)),
-				baseapp.SetMinRetainBlocks(400000),
-				baseapp.SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
+			bapp: NewBaseApp(
+				name, logger, db, nil,
+				SetPruning(pruningtypes.NewCustomPruningOptions(0, 0)),
+				SetMinRetainBlocks(400000),
+				SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
 			),
 			maxAgeBlocks: 362880,
 			commitHeight: 10000,
 			expected:     0,
 		},
 		"disable pruning": {
-			bapp: baseapp.NewBaseApp(
-				name, logger, db,
-				baseapp.SetPruning(pruningtypes.NewCustomPruningOptions(0, 0)),
-				baseapp.SetMinRetainBlocks(0),
-				baseapp.SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
+			bapp: NewBaseApp(
+				name, logger, db, nil,
+				SetPruning(pruningtypes.NewCustomPruningOptions(0, 0)),
+				SetMinRetainBlocks(0),
+				SetSnapshot(snapshotStore, snapshottypes.NewSnapshotOptions(50000, 3)),
 			),
 			maxAgeBlocks: 362880,
 			commitHeight: 499000,
@@ -134,12 +134,12 @@ func TestBaseAppCreateQueryContext(t *testing.T) {
 	logger := defaultLogger()
 	db := dbm.NewMemDB()
 	name := t.Name()
-	app := baseapp.NewBaseApp(name, logger, db)
+	app := NewBaseApp(name, logger, db, nil)
 
-	app.BeginBlock(abci.RequestBeginBlock{Header: tmprototypes.Header{Height: 1}})
+	app.BeginBlock(abci.RequestBeginBlock{Header: tmproto.Header{Height: 1}})
 	app.Commit()
 
-	app.BeginBlock(abci.RequestBeginBlock{Header: tmprototypes.Header{Height: 2}})
+	app.BeginBlock(abci.RequestBeginBlock{Header: tmproto.Header{Height: 2}})
 	app.Commit()
 
 	testCases := []struct {
@@ -156,7 +156,7 @@ func TestBaseAppCreateQueryContext(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			_, err := app.CreateQueryContext(tc.height, tc.prove)
+			_, err := app.createQueryContext(tc.height, tc.prove)
 			if tc.expErr {
 				require.Error(t, err)
 			} else {