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fix!: Capability Issue on Restart, Backport to v0.43 (cosmos#9836)
<!-- 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 Closes: cosmos#9800 The following is a breaking fix to cosmos#9800. In the non-breaking fix, the initialization logic was moved out of `InitializeAndSeal` but the API was preserved. I've now removed `InitializeAndSeal` and replaced it with just the `Seal` function, which may be called much more cleanly in `app.go` --- ### 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... - [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [x] added `!` to the type prefix if API or client breaking change - [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting)) - [x] provided a link to the relevant issue or specification - [x] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules) - [x] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing) - [x] added a changelog entry to `CHANGELOG.md` - [x] included comments for [documenting Go code](https://blog.golang.org/godoc) - [x] updated the relevant documentation or specification - [x] 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)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| package capability | ||
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| import ( | ||
| "time" | ||
|
|
||
| "github.com/cosmos/cosmos-sdk/telemetry" | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| "github.com/cosmos/cosmos-sdk/x/capability/keeper" | ||
| "github.com/cosmos/cosmos-sdk/x/capability/types" | ||
| ) | ||
|
|
||
| // BeginBlocker will call InitMemStore to initialize the memory stores in the case | ||
| // that this is the first time the node is executing a block since restarting (wiping memory). | ||
| // In this case, the BeginBlocker method will reinitialize the memory stores locally, so that subsequent | ||
| // capability transactions will pass. | ||
| // Otherwise BeginBlocker performs a no-op. | ||
| func BeginBlocker(ctx sdk.Context, k keeper.Keeper) { | ||
| defer telemetry.ModuleMeasureSince(types.ModuleName, time.Now(), telemetry.MetricKeyBeginBlocker) | ||
|
|
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| k.InitMemStore(ctx) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| package capability_test | ||
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| import ( | ||
| "testing" | ||
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| "github.com/stretchr/testify/suite" | ||
| abci "github.com/tendermint/tendermint/abci/types" | ||
| tmproto "github.com/tendermint/tendermint/proto/tendermint/types" | ||
|
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||
| "github.com/cosmos/cosmos-sdk/codec" | ||
| "github.com/cosmos/cosmos-sdk/simapp" | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| "github.com/cosmos/cosmos-sdk/types/module" | ||
| banktypes "github.com/cosmos/cosmos-sdk/x/bank/types" | ||
| "github.com/cosmos/cosmos-sdk/x/capability" | ||
| "github.com/cosmos/cosmos-sdk/x/capability/keeper" | ||
| "github.com/cosmos/cosmos-sdk/x/capability/types" | ||
| ) | ||
|
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| type CapabilityTestSuite struct { | ||
| suite.Suite | ||
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| cdc codec.Codec | ||
| ctx sdk.Context | ||
| app *simapp.SimApp | ||
| keeper *keeper.Keeper | ||
| module module.AppModule | ||
| } | ||
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| func (suite *CapabilityTestSuite) SetupTest() { | ||
| checkTx := false | ||
| app := simapp.Setup(checkTx) | ||
| cdc := app.AppCodec() | ||
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| // create new keeper so we can define custom scoping before init and seal | ||
| keeper := keeper.NewKeeper(cdc, app.GetKey(types.StoreKey), app.GetMemKey(types.MemStoreKey)) | ||
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| suite.app = app | ||
| suite.ctx = app.BaseApp.NewContext(checkTx, tmproto.Header{Height: 1}) | ||
| suite.keeper = keeper | ||
| suite.cdc = cdc | ||
| suite.module = capability.NewAppModule(cdc, *keeper) | ||
| } | ||
|
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| // The following test case mocks a specific bug discovered in https://github.com/cosmos/cosmos-sdk/issues/9800 | ||
| // and ensures that the current code successfully fixes the issue. | ||
| func (suite *CapabilityTestSuite) TestInitializeMemStore() { | ||
| sk1 := suite.keeper.ScopeToModule(banktypes.ModuleName) | ||
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| cap1, err := sk1.NewCapability(suite.ctx, "transfer") | ||
| suite.Require().NoError(err) | ||
| suite.Require().NotNil(cap1) | ||
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| // mock statesync by creating new keeper that shares persistent state but loses in-memory map | ||
| newKeeper := keeper.NewKeeper(suite.cdc, suite.app.GetKey(types.StoreKey), suite.app.GetMemKey("testingkey")) | ||
| newSk1 := newKeeper.ScopeToModule(banktypes.ModuleName) | ||
|
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| // Mock App startup | ||
| ctx := suite.app.BaseApp.NewUncachedContext(false, tmproto.Header{}) | ||
| newKeeper.Seal() | ||
| suite.Require().False(newKeeper.IsInitialized(ctx), "memstore initialized flag set before BeginBlock") | ||
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| // Mock app beginblock and ensure that no gas has been consumed and memstore is initialized | ||
| ctx = suite.app.BaseApp.NewContext(false, tmproto.Header{}).WithBlockGasMeter(sdk.NewGasMeter(50)) | ||
| prevGas := ctx.BlockGasMeter().GasConsumed() | ||
| restartedModule := capability.NewAppModule(suite.cdc, *newKeeper) | ||
| restartedModule.BeginBlock(ctx, abci.RequestBeginBlock{}) | ||
| suite.Require().True(newKeeper.IsInitialized(ctx), "memstore initialized flag not set") | ||
| gasUsed := ctx.BlockGasMeter().GasConsumed() | ||
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| suite.Require().Equal(prevGas, gasUsed, "beginblocker consumed gas during execution") | ||
|
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| // Mock the first transaction getting capability and subsequently failing | ||
| // by using a cached context and discarding all cached writes. | ||
| cacheCtx, _ := ctx.CacheContext() | ||
| _, ok := newSk1.GetCapability(cacheCtx, "transfer") | ||
| suite.Require().True(ok) | ||
|
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| // Ensure that the second transaction can still receive capability even if first tx fails. | ||
| ctx = suite.app.BaseApp.NewContext(false, tmproto.Header{}) | ||
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| cap1, ok = newSk1.GetCapability(ctx, "transfer") | ||
| suite.Require().True(ok) | ||
|
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| // Ensure the capabilities don't get reinitialized on next BeginBlock | ||
| // by testing to see if capability returns same pointer | ||
| // also check that initialized flag is still set | ||
| restartedModule.BeginBlock(ctx, abci.RequestBeginBlock{}) | ||
| recap, ok := newSk1.GetCapability(ctx, "transfer") | ||
| suite.Require().True(ok) | ||
| suite.Require().Equal(cap1, recap, "capabilities got reinitialized after second BeginBlock") | ||
| suite.Require().True(newKeeper.IsInitialized(ctx), "memstore initialized flag not set") | ||
| } | ||
|
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| func TestCapabilityTestSuite(t *testing.T) { | ||
| suite.Run(t, new(CapabilityTestSuite)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| package capability_test | ||
|
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||
| import ( | ||
| "github.com/tendermint/tendermint/libs/log" | ||
| tmproto "github.com/tendermint/tendermint/proto/tendermint/types" | ||
| dbm "github.com/tendermint/tm-db" | ||
|
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| "github.com/cosmos/cosmos-sdk/simapp" | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| banktypes "github.com/cosmos/cosmos-sdk/x/bank/types" | ||
| "github.com/cosmos/cosmos-sdk/x/capability" | ||
| "github.com/cosmos/cosmos-sdk/x/capability/keeper" | ||
| "github.com/cosmos/cosmos-sdk/x/capability/types" | ||
| stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types" | ||
| ) | ||
|
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| func (suite *CapabilityTestSuite) TestGenesis() { | ||
| sk1 := suite.keeper.ScopeToModule(banktypes.ModuleName) | ||
| sk2 := suite.keeper.ScopeToModule(stakingtypes.ModuleName) | ||
|
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| cap1, err := sk1.NewCapability(suite.ctx, "transfer") | ||
| suite.Require().NoError(err) | ||
| suite.Require().NotNil(cap1) | ||
|
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| err = sk2.ClaimCapability(suite.ctx, cap1, "transfer") | ||
| suite.Require().NoError(err) | ||
|
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| cap2, err := sk2.NewCapability(suite.ctx, "ica") | ||
| suite.Require().NoError(err) | ||
| suite.Require().NotNil(cap2) | ||
|
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| genState := capability.ExportGenesis(suite.ctx, *suite.keeper) | ||
|
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| // create new app that does not share persistent or in-memory state | ||
| // and initialize app from exported genesis state above. | ||
| db := dbm.NewMemDB() | ||
| encCdc := simapp.MakeTestEncodingConfig() | ||
| newApp := simapp.NewSimApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, simapp.DefaultNodeHome, 5, encCdc, simapp.EmptyAppOptions{}) | ||
|
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| newKeeper := keeper.NewKeeper(suite.cdc, newApp.GetKey(types.StoreKey), newApp.GetMemKey(types.MemStoreKey)) | ||
| newSk1 := newKeeper.ScopeToModule(banktypes.ModuleName) | ||
| newSk2 := newKeeper.ScopeToModule(stakingtypes.ModuleName) | ||
| deliverCtx, _ := newApp.BaseApp.NewUncachedContext(false, tmproto.Header{}).WithBlockGasMeter(sdk.NewInfiniteGasMeter()).CacheContext() | ||
|
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| capability.InitGenesis(deliverCtx, *newKeeper, *genState) | ||
|
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| // check that all previous capabilities exist in new app after InitGenesis | ||
| sk1Cap1, ok := newSk1.GetCapability(deliverCtx, "transfer") | ||
| suite.Require().True(ok, "could not get first capability after genesis on first ScopedKeeper") | ||
| suite.Require().Equal(*cap1, *sk1Cap1, "capability values not equal on first ScopedKeeper") | ||
|
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| sk2Cap1, ok := newSk2.GetCapability(deliverCtx, "transfer") | ||
| suite.Require().True(ok, "could not get first capability after genesis on first ScopedKeeper") | ||
| suite.Require().Equal(*cap1, *sk2Cap1, "capability values not equal on first ScopedKeeper") | ||
|
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| sk2Cap2, ok := newSk2.GetCapability(deliverCtx, "ica") | ||
| suite.Require().True(ok, "could not get second capability after genesis on second ScopedKeeper") | ||
| suite.Require().Equal(*cap2, *sk2Cap2, "capability values not equal on second ScopedKeeper") | ||
| } |
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