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160 lines
4.9 KiB
160 lines
4.9 KiB
package proxy
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import (
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"fmt"
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"os"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/abci/example/kvstore"
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"github.com/tendermint/tendermint/crypto/merkle"
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"github.com/tendermint/tendermint/lite"
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certclient "github.com/tendermint/tendermint/lite/client"
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nm "github.com/tendermint/tendermint/node"
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"github.com/tendermint/tendermint/rpc/client"
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rpctest "github.com/tendermint/tendermint/rpc/test"
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"github.com/tendermint/tendermint/types"
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)
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var node *nm.Node
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var chainID = "tendermint_test" // TODO use from config.
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//nolint:unused
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var waitForEventTimeout = 5 * time.Second
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// TODO fix tests!!
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func TestMain(m *testing.M) {
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app := kvstore.NewKVStoreApplication()
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node = rpctest.StartTendermint(app)
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code := m.Run()
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rpctest.StopTendermint(node)
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os.Exit(code)
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}
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func kvstoreTx(k, v []byte) []byte {
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return []byte(fmt.Sprintf("%s=%s", k, v))
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}
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// TODO: enable it after general proof format has been adapted
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// in abci/examples/kvstore.go
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//nolint:unused,deadcode
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func _TestAppProofs(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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prt := defaultProofRuntime()
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cl := client.NewLocal(node)
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client.WaitForHeight(cl, 1, nil)
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// This sets up our trust on the node based on some past point.
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source := certclient.NewProvider(chainID, cl)
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seed, err := source.LatestFullCommit(chainID, 1, 1)
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require.NoError(err, "%#v", err)
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cert := lite.NewBaseVerifier(chainID, seed.Height(), seed.Validators)
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// Wait for tx confirmation.
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done := make(chan int64)
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go func() {
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evtTyp := types.EventTx
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_, err = client.WaitForOneEvent(cl, evtTyp, waitForEventTimeout)
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require.Nil(err, "%#v", err)
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close(done)
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}()
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// Submit a transaction.
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k := []byte("my-key")
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v := []byte("my-value")
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tx := kvstoreTx(k, v)
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br, err := cl.BroadcastTxCommit(tx)
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require.NoError(err, "%#v", err)
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require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx)
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require.EqualValues(0, br.DeliverTx.Code)
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brh := br.Height
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// Fetch latest after tx commit.
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<-done
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latest, err := source.LatestFullCommit(chainID, 1, 1<<63-1)
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require.NoError(err, "%#v", err)
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rootHash := latest.SignedHeader.AppHash
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if rootHash == nil {
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// Fetch one block later, AppHash hasn't been committed yet.
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// TODO find a way to avoid doing this.
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client.WaitForHeight(cl, latest.SignedHeader.Height+1, nil)
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latest, err = source.LatestFullCommit(chainID, latest.SignedHeader.Height+1, 1<<63-1)
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require.NoError(err, "%#v", err)
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rootHash = latest.SignedHeader.AppHash
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}
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require.NotNil(rootHash)
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// verify a query before the tx block has no data (and valid non-exist proof)
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bs, height, proof, err := GetWithProof(prt, k, brh-1, cl, cert)
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require.NoError(err, "%#v", err)
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// require.NotNil(proof)
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// TODO: Ensure that *some* keys will be there, ensuring that proof is nil,
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// (currently there's a race condition)
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// and ensure that proof proves absence of k.
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require.Nil(bs)
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// but given that block it is good
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bs, height, proof, err = GetWithProof(prt, k, brh, cl, cert)
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require.NoError(err, "%#v", err)
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require.NotNil(proof)
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require.Equal(height, brh)
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assert.EqualValues(v, bs)
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err = prt.VerifyValue(proof, rootHash, string(k), bs) // XXX key encoding
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assert.NoError(err, "%#v", err)
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// Test non-existing key.
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missing := []byte("my-missing-key")
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bs, _, proof, err = GetWithProof(prt, missing, 0, cl, cert)
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require.NoError(err)
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require.Nil(bs)
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require.NotNil(proof)
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err = prt.VerifyAbsence(proof, rootHash, string(missing)) // XXX VerifyAbsence(), keyencoding
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assert.NoError(err, "%#v", err)
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err = prt.VerifyAbsence(proof, rootHash, string(k)) // XXX VerifyAbsence(), keyencoding
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assert.Error(err, "%#v", err)
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}
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func TestTxProofs(t *testing.T) {
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assert, require := assert.New(t), require.New(t)
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cl := client.NewLocal(node)
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client.WaitForHeight(cl, 1, nil)
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tx := kvstoreTx([]byte("key-a"), []byte("value-a"))
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br, err := cl.BroadcastTxCommit(tx)
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require.NoError(err, "%#v", err)
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require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx)
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require.EqualValues(0, br.DeliverTx.Code)
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brh := br.Height
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source := certclient.NewProvider(chainID, cl)
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seed, err := source.LatestFullCommit(chainID, brh-2, brh-2)
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require.NoError(err, "%#v", err)
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cert := lite.NewBaseVerifier(chainID, seed.Height(), seed.Validators)
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// First let's make sure a bogus transaction hash returns a valid non-existence proof.
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key := types.Tx([]byte("bogus")).Hash()
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res, err := cl.Tx(key, true)
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require.NotNil(err)
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require.Contains(err.Error(), "not found")
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// Now let's check with the real tx root hash.
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key = types.Tx(tx).Hash()
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res, err = cl.Tx(key, true)
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require.NoError(err, "%#v", err)
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require.NotNil(res)
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keyHash := merkle.SimpleHashFromByteSlices([][]byte{key})
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err = res.Proof.Validate(keyHash)
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assert.NoError(err, "%#v", err)
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commit, err := GetCertifiedCommit(br.Height, cl, cert)
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require.Nil(err, "%#v", err)
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require.Equal(res.Proof.RootHash, commit.Header.DataHash)
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}
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