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Merge pull request cosmos#193 from mmsqe/release/v0.47.x_sync_1
Problem: v0.47.x is outdated
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,256 @@ | ||
| package baseapp | ||
|
|
||
| import ( | ||
| "github.com/cockroachdb/errors" | ||
| abci "github.com/cometbft/cometbft/abci/types" | ||
|
|
||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| "github.com/cosmos/cosmos-sdk/types/mempool" | ||
| ) | ||
|
|
||
| type ( | ||
| // GasTx defines the contract that a transaction with a gas limit must implement. | ||
| GasTx interface { | ||
| GetGas() uint64 | ||
| } | ||
|
|
||
| // ProposalTxVerifier defines the interface that is implemented by BaseApp, | ||
| // that any custom ABCI PrepareProposal and ProcessProposal handler can use | ||
| // to verify a transaction. | ||
| ProposalTxVerifier interface { | ||
| PrepareProposalVerifyTx(tx sdk.Tx) ([]byte, error) | ||
| ProcessProposalVerifyTx(txBz []byte) (sdk.Tx, error) | ||
| } | ||
|
|
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| // DefaultProposalHandler defines the default ABCI PrepareProposal and | ||
| // ProcessProposal handlers. | ||
| DefaultProposalHandler struct { | ||
| mempool mempool.Mempool | ||
| txVerifier ProposalTxVerifier | ||
| txSelector TxSelector | ||
| } | ||
| ) | ||
|
|
||
| func NewDefaultProposalHandler(mp mempool.Mempool, txVerifier ProposalTxVerifier) *DefaultProposalHandler { | ||
| return &DefaultProposalHandler{ | ||
| mempool: mp, | ||
| txVerifier: txVerifier, | ||
| txSelector: NewDefaultTxSelector(), | ||
| } | ||
| } | ||
|
|
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| // SetTxSelector sets the TxSelector function on the DefaultProposalHandler. | ||
| func (h *DefaultProposalHandler) SetTxSelector(ts TxSelector) { | ||
| h.txSelector = ts | ||
| } | ||
|
|
||
| // PrepareProposalHandler returns the default implementation for processing an | ||
| // ABCI proposal. The application's mempool is enumerated and all valid | ||
| // transactions are added to the proposal. Transactions are valid if they: | ||
| // | ||
| // 1) Successfully encode to bytes. | ||
| // 2) Are valid (i.e. pass runTx, AnteHandler only). | ||
| // | ||
| // Enumeration is halted once RequestPrepareProposal.MaxBytes of transactions is | ||
| // reached or the mempool is exhausted. | ||
| // | ||
| // Note: | ||
| // | ||
| // - Step (2) is identical to the validation step performed in | ||
| // DefaultProcessProposal. It is very important that the same validation logic | ||
| // is used in both steps, and applications must ensure that this is the case in | ||
| // non-default handlers. | ||
| // | ||
| // - If no mempool is set or if the mempool is a no-op mempool, the transactions | ||
| // requested from CometBFT will simply be returned, which, by default, are in | ||
| // FIFO order. | ||
| func (h *DefaultProposalHandler) PrepareProposalHandler() sdk.PrepareProposalHandler { | ||
| return func(ctx sdk.Context, req abci.RequestPrepareProposal) abci.ResponsePrepareProposal { | ||
| var maxBlockGas uint64 | ||
| if b := ctx.ConsensusParams().Block; b != nil { | ||
| maxBlockGas = uint64(b.MaxGas) | ||
| } | ||
|
|
||
| defer h.txSelector.Clear() | ||
|
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| // If the mempool is nil or NoOp we simply return the transactions | ||
| // requested from CometBFT, which, by default, should be in FIFO order. | ||
| // | ||
| // Note, we still need to ensure the transactions returned respect req.MaxTxBytes. | ||
| _, isNoOp := h.mempool.(mempool.NoOpMempool) | ||
| if h.mempool == nil || isNoOp { | ||
| for _, txBz := range req.Txs { | ||
| // XXX: We pass nil as the memTx because we have no way of decoding the | ||
| // txBz. We'd need to break (update) the ProposalTxVerifier interface. | ||
| // As a result, we CANNOT account for block max gas. | ||
| stop := h.txSelector.SelectTxForProposal(uint64(req.MaxTxBytes), maxBlockGas, nil, txBz) | ||
| if stop { | ||
| break | ||
| } | ||
| } | ||
|
|
||
| return abci.ResponsePrepareProposal{Txs: h.txSelector.SelectedTxs()} | ||
| } | ||
|
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| iterator := h.mempool.Select(ctx, req.Txs) | ||
| for iterator != nil { | ||
| memTx := iterator.Tx() | ||
|
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| // NOTE: Since transaction verification was already executed in CheckTx, | ||
| // which calls mempool.Insert, in theory everything in the pool should be | ||
| // valid. But some mempool implementations may insert invalid txs, so we | ||
| // check again. | ||
| txBz, err := h.txVerifier.PrepareProposalVerifyTx(memTx) | ||
| if err != nil { | ||
| err := h.mempool.Remove(memTx) | ||
| if err != nil && !errors.Is(err, mempool.ErrTxNotFound) { | ||
| panic(err) | ||
| } | ||
| } else { | ||
| stop := h.txSelector.SelectTxForProposal(uint64(req.MaxTxBytes), maxBlockGas, memTx, txBz) | ||
| if stop { | ||
| break | ||
| } | ||
| } | ||
|
|
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| iterator = iterator.Next() | ||
| } | ||
|
|
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| return abci.ResponsePrepareProposal{Txs: h.txSelector.SelectedTxs()} | ||
| } | ||
| } | ||
|
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| // ProcessProposalHandler returns the default implementation for processing an | ||
| // ABCI proposal. Every transaction in the proposal must pass 2 conditions: | ||
| // | ||
| // 1. The transaction bytes must decode to a valid transaction. | ||
| // 2. The transaction must be valid (i.e. pass runTx, AnteHandler only) | ||
| // | ||
| // If any transaction fails to pass either condition, the proposal is rejected. | ||
| // Note that step (2) is identical to the validation step performed in | ||
| // DefaultPrepareProposal. It is very important that the same validation logic | ||
| // is used in both steps, and applications must ensure that this is the case in | ||
| // non-default handlers. | ||
| func (h *DefaultProposalHandler) ProcessProposalHandler() sdk.ProcessProposalHandler { | ||
| // If the mempool is nil or NoOp we simply return ACCEPT, | ||
| // because PrepareProposal may have included txs that could fail verification. | ||
| _, isNoOp := h.mempool.(mempool.NoOpMempool) | ||
| if h.mempool == nil || isNoOp { | ||
| return NoOpProcessProposal() | ||
| } | ||
|
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| return func(ctx sdk.Context, req abci.RequestProcessProposal) abci.ResponseProcessProposal { | ||
| var totalTxGas uint64 | ||
|
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| var maxBlockGas int64 | ||
| if b := ctx.ConsensusParams().Block; b != nil { | ||
| maxBlockGas = b.MaxGas | ||
| } | ||
|
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| for _, txBytes := range req.Txs { | ||
| tx, err := h.txVerifier.ProcessProposalVerifyTx(txBytes) | ||
| if err != nil { | ||
| return abci.ResponseProcessProposal{Status: abci.ResponseProcessProposal_REJECT} | ||
| } | ||
|
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||
| if maxBlockGas > 0 { | ||
| gasTx, ok := tx.(GasTx) | ||
| if ok { | ||
| totalTxGas += gasTx.GetGas() | ||
| } | ||
|
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||
| if totalTxGas > uint64(maxBlockGas) { | ||
| return abci.ResponseProcessProposal{Status: abci.ResponseProcessProposal_REJECT} | ||
| } | ||
| } | ||
| } | ||
|
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| return abci.ResponseProcessProposal{Status: abci.ResponseProcessProposal_ACCEPT} | ||
| } | ||
| } | ||
|
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| // NoOpPrepareProposal defines a no-op PrepareProposal handler. It will always | ||
| // return the transactions sent by the client's request. | ||
| func NoOpPrepareProposal() sdk.PrepareProposalHandler { | ||
| return func(_ sdk.Context, req abci.RequestPrepareProposal) abci.ResponsePrepareProposal { | ||
| return abci.ResponsePrepareProposal{Txs: req.Txs} | ||
| } | ||
| } | ||
|
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||
| // NoOpProcessProposal defines a no-op ProcessProposal Handler. It will always | ||
| // return ACCEPT. | ||
| func NoOpProcessProposal() sdk.ProcessProposalHandler { | ||
| return func(_ sdk.Context, _ abci.RequestProcessProposal) abci.ResponseProcessProposal { | ||
| return abci.ResponseProcessProposal{Status: abci.ResponseProcessProposal_ACCEPT} | ||
| } | ||
| } | ||
|
|
||
| // TxSelector defines a helper type that assists in selecting transactions during | ||
| // mempool transaction selection in PrepareProposal. It keeps track of the total | ||
| // number of bytes and total gas of the selected transactions. It also keeps | ||
| // track of the selected transactions themselves. | ||
| type TxSelector interface { | ||
| // SelectedTxs should return a copy of the selected transactions. | ||
| SelectedTxs() [][]byte | ||
|
|
||
| // Clear should clear the TxSelector, nulling out all relevant fields. | ||
| Clear() | ||
|
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| // SelectTxForProposal should attempt to select a transaction for inclusion in | ||
| // a proposal based on inclusion criteria defined by the TxSelector. It must | ||
| // return <true> if the caller should halt the transaction selection loop | ||
| // (typically over a mempool) or <false> otherwise. | ||
| SelectTxForProposal(maxTxBytes, maxBlockGas uint64, memTx sdk.Tx, txBz []byte) bool | ||
| } | ||
|
|
||
| type defaultTxSelector struct { | ||
| totalTxBytes uint64 | ||
| totalTxGas uint64 | ||
| selectedTxs [][]byte | ||
| } | ||
|
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| func NewDefaultTxSelector() TxSelector { | ||
| return &defaultTxSelector{} | ||
| } | ||
|
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| func (ts *defaultTxSelector) SelectedTxs() [][]byte { | ||
| txs := make([][]byte, len(ts.selectedTxs)) | ||
| copy(txs, ts.selectedTxs) | ||
| return txs | ||
| } | ||
|
|
||
| func (ts *defaultTxSelector) Clear() { | ||
| ts.totalTxBytes = 0 | ||
| ts.totalTxGas = 0 | ||
| ts.selectedTxs = nil | ||
| } | ||
|
|
||
| func (ts *defaultTxSelector) SelectTxForProposal(maxTxBytes, maxBlockGas uint64, memTx sdk.Tx, txBz []byte) bool { | ||
| txSize := uint64(len(txBz)) | ||
|
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||
| var txGasLimit uint64 | ||
| if memTx != nil { | ||
| if gasTx, ok := memTx.(GasTx); ok { | ||
| txGasLimit = gasTx.GetGas() | ||
| } | ||
| } | ||
|
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| // only add the transaction to the proposal if we have enough capacity | ||
| if (txSize + ts.totalTxBytes) <= maxTxBytes { | ||
| // If there is a max block gas limit, add the tx only if the limit has | ||
| // not been met. | ||
| if maxBlockGas > 0 { | ||
| if (txGasLimit + ts.totalTxGas) <= maxBlockGas { | ||
| ts.totalTxGas += txGasLimit | ||
| ts.totalTxBytes += txSize | ||
| ts.selectedTxs = append(ts.selectedTxs, txBz) | ||
| } | ||
| } else { | ||
| ts.totalTxBytes += txSize | ||
| ts.selectedTxs = append(ts.selectedTxs, txBz) | ||
| } | ||
| } | ||
|
|
||
| // check if we've reached capacity; if so, we cannot select any more transactions | ||
| return ts.totalTxBytes >= maxTxBytes || (maxBlockGas > 0 && (ts.totalTxGas >= maxBlockGas)) | ||
| } |
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