a72f6a8d4f
<!-- The default pull request template is for types feat, fix, or refactor. For other templates, add one of the following parameters to the url: - template=docs.md - template=other.md --> ## Description R4R Closes: #9912 This PR introduces 1 new middleware: - `TipsMiddleware`: transfer tip from tipper to feePayer when relevant. It also makes sure in the DIRECT_AUX sign mode handler that the fee payer cannot use that sign mode. Depends on: - [x] #10028 - [x] #10268 - [x] #10322 - [x] #10346 <!-- Add a description of the changes that this PR introduces and the files that are the most critical to review. --> --- ### 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/master/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/master/docs/building-modules) - [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/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)
95 lines
2.4 KiB
Go
95 lines
2.4 KiB
Go
package middleware
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import (
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"context"
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abci "github.com/tendermint/tendermint/abci/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/types/tx"
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"github.com/cosmos/cosmos-sdk/x/auth/types"
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)
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type tipsTxHandler struct {
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next tx.Handler
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bankKeeper types.BankKeeper
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}
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// NewTipMiddleware returns a new middleware for handling transactions with
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// tips.
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func NewTipMiddleware(bankKeeper types.BankKeeper) tx.Middleware {
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return func(txh tx.Handler) tx.Handler {
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return tipsTxHandler{txh, bankKeeper}
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}
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}
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var _ tx.Handler = tipsTxHandler{}
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// CheckTx implements tx.Handler.CheckTx.
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func (txh tipsTxHandler) CheckTx(ctx context.Context, sdkTx sdk.Tx, req abci.RequestCheckTx) (abci.ResponseCheckTx, error) {
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res, err := txh.next.CheckTx(ctx, sdkTx, req)
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if err != nil {
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return abci.ResponseCheckTx{}, err
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}
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tipTx, ok := sdkTx.(tx.TipTx)
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if !ok || tipTx.GetTip() == nil {
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return res, err
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}
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if err := txh.transferTip(ctx, tipTx); err != nil {
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return abci.ResponseCheckTx{}, err
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}
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return res, err
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}
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// DeliverTx implements tx.Handler.DeliverTx.
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func (txh tipsTxHandler) DeliverTx(ctx context.Context, sdkTx sdk.Tx, req abci.RequestDeliverTx) (abci.ResponseDeliverTx, error) {
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res, err := txh.next.DeliverTx(ctx, sdkTx, req)
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if err != nil {
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return abci.ResponseDeliverTx{}, err
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}
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tipTx, ok := sdkTx.(tx.TipTx)
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if !ok || tipTx.GetTip() == nil {
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return res, err
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}
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if err := txh.transferTip(ctx, tipTx); err != nil {
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return abci.ResponseDeliverTx{}, err
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}
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return res, err
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}
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// SimulateTx implements tx.Handler.SimulateTx method.
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func (txh tipsTxHandler) SimulateTx(ctx context.Context, sdkTx sdk.Tx, req tx.RequestSimulateTx) (tx.ResponseSimulateTx, error) {
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res, err := txh.next.SimulateTx(ctx, sdkTx, req)
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if err != nil {
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return tx.ResponseSimulateTx{}, err
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}
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tipTx, ok := sdkTx.(tx.TipTx)
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if !ok || tipTx.GetTip() == nil {
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return res, err
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}
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if err := txh.transferTip(ctx, tipTx); err != nil {
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return tx.ResponseSimulateTx{}, err
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}
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return res, err
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}
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// transferTip transfers the tip from the tipper to the fee payer.
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func (txh tipsTxHandler) transferTip(ctx context.Context, tipTx tx.TipTx) error {
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sdkCtx := sdk.UnwrapSDKContext(ctx)
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tipper, err := sdk.AccAddressFromBech32(tipTx.GetTip().Tipper)
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if err != nil {
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return err
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}
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return txh.bankKeeper.SendCoins(sdkCtx, tipper, tipTx.FeePayer(), tipTx.GetTip().Amount)
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}
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