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cosmos-sdk
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Merge PR #2192: Split LCD implementation PR, part one

This commit is contained in:
Christopher Goes 2018-08-31 18:41:24 +02:00 committed by GitHub
parent ee0434e5a7 46172bb78b
commit 03f79ef744
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GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 388 additions and 37 deletions
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45
Gopkg.lock generated
View File

@ -34,7 +34,7 @@
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@ -71,7 +71,7 @@
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[[projects]]
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@ -103,7 +103,7 @@
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[[projects]]
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@ -118,7 +118,7 @@
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[[projects]]
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@ -165,13 +165,12 @@
[[projects]]
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name = "github.com/hashicorp/hcl"
packages = [
".",
"hcl/ast",
"hcl/parser",
"hcl/printer",
"hcl/scanner",
"hcl/strconv",
"hcl/token",
@ -263,7 +262,7 @@
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[[projects]]
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@ -274,7 +273,7 @@
[[projects]]
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pruneopts = "UT"
@ -282,7 +281,7 @@
[[projects]]
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@ -294,7 +293,7 @@
[[projects]]
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@ -313,7 +312,7 @@
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[[projects]]
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@ -332,7 +331,7 @@
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[[projects]]
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@ -364,7 +363,7 @@
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[[projects]]
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packages = [
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@ -376,7 +375,7 @@
[[projects]]
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packages = [
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@ -397,7 +396,7 @@
[[projects]]
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@ -424,7 +423,7 @@
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[[projects]]
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@ -491,7 +490,7 @@
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[[projects]]
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packages = ["cli"]
pruneopts = "UT"
@ -507,7 +506,7 @@
[[projects]]
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@ -529,7 +528,7 @@
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[[projects]]
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name = "golang.org/x/net"
packages = [
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@ -546,7 +545,7 @@
[[projects]]
branch = "master"
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@ -556,7 +555,7 @@
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[[projects]]
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@ -587,7 +586,7 @@
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[[projects]]
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name = "google.golang.org/grpc"
packages = [
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@ -664,6 +663,8 @@
"github.com/tendermint/tendermint/libs/common",
"github.com/tendermint/tendermint/libs/db",
"github.com/tendermint/tendermint/libs/log",
"github.com/tendermint/tendermint/lite",
"github.com/tendermint/tendermint/lite/proxy",
"github.com/tendermint/tendermint/node",
"github.com/tendermint/tendermint/p2p",
"github.com/tendermint/tendermint/privval",

46
client/context/context.go
View File

@ -1,14 +1,18 @@
package context
import (
"io"
"bytes"
"fmt"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/wire"
"github.com/cosmos/cosmos-sdk/x/auth"
"io"
"github.com/spf13/viper"
"github.com/tendermint/tendermint/libs/cli"
tmlite "github.com/tendermint/tendermint/lite"
tmliteProxy "github.com/tendermint/tendermint/lite/proxy"
rpcclient "github.com/tendermint/tendermint/rpc/client"
)
@ -32,6 +36,7 @@ type CLIContext struct {
Async bool
JSON bool
PrintResponse bool
Certifier tmlite.Certifier
}
// NewCLIContext returns a new initialized CLIContext with parameters from the
@ -57,9 +62,40 @@ func NewCLIContext() CLIContext {
Async: viper.GetBool(client.FlagAsync),
JSON: viper.GetBool(client.FlagJson),
PrintResponse: viper.GetBool(client.FlagPrintResponse),
Certifier: createCertifier(),
}
}
func createCertifier() tmlite.Certifier {
trustNode := viper.GetBool(client.FlagTrustNode)
if trustNode {
return nil
}
chainID := viper.GetString(client.FlagChainID)
home := viper.GetString(cli.HomeFlag)
nodeURI := viper.GetString(client.FlagNode)
var errMsg bytes.Buffer
if chainID == "" {
errMsg.WriteString("chain-id ")
}
if home == "" {
errMsg.WriteString("home ")
}
if nodeURI == "" {
errMsg.WriteString("node ")
}
// errMsg is not empty
if errMsg.Len() != 0 {
panic(fmt.Errorf("can't create certifier for distrust mode, empty values from these options: %s", errMsg.String()))
}
certifier, err := tmliteProxy.GetCertifier(chainID, home, nodeURI)
if err != nil {
panic(err)
}
return certifier
}
// WithCodec returns a copy of the context with an updated codec.
func (ctx CLIContext) WithCodec(cdc *wire.Codec) CLIContext {
ctx.Codec = cdc
@ -117,3 +153,9 @@ func (ctx CLIContext) WithUseLedger(useLedger bool) CLIContext {
ctx.UseLedger = useLedger
return ctx
}
// WithCertifier - return a copy of the context with an updated Certifier
func (ctx CLIContext) WithCertifier(certifier tmlite.Certifier) CLIContext {
ctx.Certifier = certifier
return ctx
}

70
client/context/query.go
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@ -10,9 +10,14 @@ import (
"github.com/pkg/errors"
"github.com/cosmos/cosmos-sdk/store"
"github.com/cosmos/cosmos-sdk/wire"
abci "github.com/tendermint/tendermint/abci/types"
cmn "github.com/tendermint/tendermint/libs/common"
tmliteProxy "github.com/tendermint/tendermint/lite/proxy"
rpcclient "github.com/tendermint/tendermint/rpc/client"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
"strings"
)
// GetNode returns an RPC client. If the context's client is not defined, an
@ -304,12 +309,77 @@ func (ctx CLIContext) query(path string, key cmn.HexBytes) (res []byte, err erro
return res, errors.Errorf("query failed: (%d) %s", resp.Code, resp.Log)
}
// Data from trusted node or subspace query doesn't need verification
if ctx.TrustNode || !isQueryStoreWithProof(path) {
return resp.Value, nil
}
err = ctx.verifyProof(path, resp)
if err != nil {
return nil, err
}
return resp.Value, nil
}
// verifyProof perform response proof verification
func (ctx CLIContext) verifyProof(path string, resp abci.ResponseQuery) error {
if ctx.Certifier == nil {
return fmt.Errorf("missing valid certifier to verify data from untrusted node")
}
node, err := ctx.GetNode()
if err != nil {
return err
}
// AppHash for height H is in header H+1
commit, err := tmliteProxy.GetCertifiedCommit(resp.Height+1, node, ctx.Certifier)
if err != nil {
return err
}
var multiStoreProof store.MultiStoreProof
cdc := wire.NewCodec()
err = cdc.UnmarshalBinary(resp.Proof, &multiStoreProof)
if err != nil {
return errors.Wrap(err, "failed to unmarshalBinary rangeProof")
}
// Verify the substore commit hash against trusted appHash
substoreCommitHash, err := store.VerifyMultiStoreCommitInfo(multiStoreProof.StoreName,
multiStoreProof.StoreInfos, commit.Header.AppHash)
if err != nil {
return errors.Wrap(err, "failed in verifying the proof against appHash")
}
err = store.VerifyRangeProof(resp.Key, resp.Value, substoreCommitHash, &multiStoreProof.RangeProof)
if err != nil {
return errors.Wrap(err, "failed in the range proof verification")
}
return nil
}
// queryStore performs a query from a Tendermint node with the provided a store
// name and path.
func (ctx CLIContext) queryStore(key cmn.HexBytes, storeName, endPath string) ([]byte, error) {
path := fmt.Sprintf("/store/%s/%s", storeName, endPath)
return ctx.query(path, key)
}
// isQueryStoreWithProof expects a format like /<queryType>/<storeName>/<subpath>
// queryType can be app or store
func isQueryStoreWithProof(path string) bool {
if !strings.HasPrefix(path, "/") {
return false
}
paths := strings.SplitN(path[1:], "/", 3)
if len(paths) != 3 {
return false
}
if store.RequireProof("/" + paths[2]) {
return true
}
return false
}

1
client/flags.go
View File

@ -58,6 +58,7 @@ func PostCommands(cmds ...*cobra.Command) []*cobra.Command {
c.Flags().Bool(FlagAsync, false, "broadcast transactions asynchronously")
c.Flags().Bool(FlagJson, false, "return output in json format")
c.Flags().Bool(FlagPrintResponse, true, "return tx response (only works with async = false)")
c.Flags().Bool(FlagTrustNode, true, "Don't verify proofs for query responses")
}
return cmds
}

9
client/lcd/root.go
View File

@ -4,11 +4,11 @@ import (
"net/http"
"os"
client "github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/context"
keys "github.com/cosmos/cosmos-sdk/client/keys"
rpc "github.com/cosmos/cosmos-sdk/client/rpc"
tx "github.com/cosmos/cosmos-sdk/client/tx"
"github.com/cosmos/cosmos-sdk/client/keys"
"github.com/cosmos/cosmos-sdk/client/rpc"
"github.com/cosmos/cosmos-sdk/client/tx"
"github.com/cosmos/cosmos-sdk/wire"
auth "github.com/cosmos/cosmos-sdk/x/auth/client/rest"
bank "github.com/cosmos/cosmos-sdk/x/bank/client/rest"
@ -66,6 +66,7 @@ func ServeCommand(cdc *wire.Codec) *cobra.Command {
cmd.Flags().String(client.FlagChainID, "", "The chain ID to connect to")
cmd.Flags().String(client.FlagNode, "tcp://localhost:26657", "Address of the node to connect to")
cmd.Flags().Int(flagMaxOpenConnections, 1000, "The number of maximum open connections")
cmd.Flags().Bool(client.FlagTrustNode, false, "Whether trust connected full node")
return cmd
}

1
client/lcd/test_helpers.go
View File

@ -190,6 +190,7 @@ func InitializeTestLCD(t *testing.T, nValidators int, initAddrs []sdk.AccAddress
node, err := startTM(config, logger, genDoc, privVal, app)
require.NoError(t, err)
tests.WaitForNextHeightTM(tests.ExtractPortFromAddress(config.RPC.ListenAddress))
lcd, err := startLCD(logger, listenAddr, cdc)
require.NoError(t, err)

16
server/export_test.go
View File

@ -1,16 +1,16 @@
package server
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/cosmos/cosmos-sdk/wire"
"github.com/tendermint/tendermint/libs/log"
tcmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
"os"
"bytes"
"github.com/cosmos/cosmos-sdk/server/mock"
"github.com/cosmos/cosmos-sdk/wire"
"github.com/stretchr/testify/require"
tcmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
"github.com/tendermint/tendermint/libs/log"
"io"
"github.com/cosmos/cosmos-sdk/server/mock"
)
"os"
"testing"
)
func TestEmptyState(t *testing.T) {
defer setupViper(t)()

2
server/mock/app.go
View File

@ -129,7 +129,7 @@ func AppGenStateEmpty(_ *wire.Codec, _ []json.RawMessage) (appState json.RawMess
// Return a validator, not much else
func AppGenTx(_ *wire.Codec, pk crypto.PubKey, genTxConfig gc.GenTx) (
appGenTx, cliPrint json.RawMessage, validator tmtypes.GenesisValidator, err error) {
appGenTx, cliPrint json.RawMessage, validator tmtypes.GenesisValidator, err error) {
validator = tmtypes.GenesisValidator{
PubKey: pk,

91
store/multistoreproof.go Normal file
View File

@ -0,0 +1,91 @@
package store
import (
"bytes"
"github.com/pkg/errors"
"github.com/tendermint/iavl"
cmn "github.com/tendermint/tendermint/libs/common"
)
// MultiStoreProof defines a collection of store proofs in a multi-store
type MultiStoreProof struct {
StoreInfos []storeInfo
StoreName string
RangeProof iavl.RangeProof
}
// buildMultiStoreProof build MultiStoreProof based on iavl proof and storeInfos
func buildMultiStoreProof(iavlProof []byte, storeName string, storeInfos []storeInfo) []byte {
var rangeProof iavl.RangeProof
cdc.MustUnmarshalBinary(iavlProof, &rangeProof)
msp := MultiStoreProof{
StoreInfos: storeInfos,
StoreName: storeName,
RangeProof: rangeProof,
}
proof := cdc.MustMarshalBinary(msp)
return proof
}
// VerifyMultiStoreCommitInfo verify multiStoreCommitInfo against appHash
func VerifyMultiStoreCommitInfo(storeName string, storeInfos []storeInfo, appHash []byte) ([]byte, error) {
var substoreCommitHash []byte
var height int64
for _, storeInfo := range storeInfos {
if storeInfo.Name == storeName {
substoreCommitHash = storeInfo.Core.CommitID.Hash
height = storeInfo.Core.CommitID.Version
}
}
if len(substoreCommitHash) == 0 {
return nil, cmn.NewError("failed to get substore root commit hash by store name")
}
ci := commitInfo{
Version: height,
StoreInfos: storeInfos,
}
if !bytes.Equal(appHash, ci.Hash()) {
return nil, cmn.NewError("the merkle root of multiStoreCommitInfo doesn't equal to appHash")
}
return substoreCommitHash, nil
}
// VerifyRangeProof verify iavl RangeProof
func VerifyRangeProof(key, value []byte, substoreCommitHash []byte, rangeProof *iavl.RangeProof) error {
// verify the proof to ensure data integrity.
err := rangeProof.Verify(substoreCommitHash)
if err != nil {
return errors.Wrap(err, "proof root hash doesn't equal to substore commit root hash")
}
if len(value) != 0 {
// verify existence proof
err = rangeProof.VerifyItem(key, value)
if err != nil {
return errors.Wrap(err, "failed in existence verification")
}
} else {
// verify absence proof
err = rangeProof.VerifyAbsence(key)
if err != nil {
return errors.Wrap(err, "failed in absence verification")
}
}
return nil
}
// RequireProof return whether proof is require for the subpath
func RequireProof(subpath string) bool {
// Currently, only when query subpath is "/store" or "/key", will proof be included in response.
// If there are some changes about proof building in iavlstore.go, we must change code here to keep consistency with iavlstore.go:212
if subpath == "/store" || subpath == "/key" {
return true
}
return false
}

120
store/multistoreproof_test.go Normal file
View File

@ -0,0 +1,120 @@
package store
import (
"encoding/hex"
"github.com/stretchr/testify/assert"
"github.com/tendermint/iavl"
cmn "github.com/tendermint/tendermint/libs/common"
"testing"
)
func TestVerifyMultiStoreCommitInfo(t *testing.T) {
appHash, _ := hex.DecodeString("ebf3c1fb724d3458023c8fefef7b33add2fc1e84")
substoreRootHash, _ := hex.DecodeString("ea5d468431015c2cd6295e9a0bb1fc0e49033828")
storeName := "acc"
var storeInfos []storeInfo
gocRootHash, _ := hex.DecodeString("62c171bb022e47d1f745608ff749e676dbd25f78")
storeInfos = append(storeInfos, storeInfo{
Name: "gov",
Core: storeCore{
CommitID: CommitID{
Version: 689,
Hash: gocRootHash,
},
},
})
storeInfos = append(storeInfos, storeInfo{
Name: "main",
Core: storeCore{
CommitID: CommitID{
Version: 689,
Hash: nil,
},
},
})
accRootHash, _ := hex.DecodeString("ea5d468431015c2cd6295e9a0bb1fc0e49033828")
storeInfos = append(storeInfos, storeInfo{
Name: "acc",
Core: storeCore{
CommitID: CommitID{
Version: 689,
Hash: accRootHash,
},
},
})
storeInfos = append(storeInfos, storeInfo{
Name: "ibc",
Core: storeCore{
CommitID: CommitID{
Version: 689,
Hash: nil,
},
},
})
stakeRootHash, _ := hex.DecodeString("987d1d27b8771d93aa3691262f661d2c85af7ca4")
storeInfos = append(storeInfos, storeInfo{
Name: "stake",
Core: storeCore{
CommitID: CommitID{
Version: 689,
Hash: stakeRootHash,
},
},
})
slashingRootHash, _ := hex.DecodeString("388ee6e5b11f367069beb1eefd553491afe9d73e")
storeInfos = append(storeInfos, storeInfo{
Name: "slashing",
Core: storeCore{
CommitID: CommitID{
Version: 689,
Hash: slashingRootHash,
},
},
})
commitHash, err := VerifyMultiStoreCommitInfo(storeName, storeInfos, appHash)
assert.Nil(t, err)
assert.Equal(t, commitHash, substoreRootHash)
appHash, _ = hex.DecodeString("29de216bf5e2531c688de36caaf024cd3bb09ee3")
_, err = VerifyMultiStoreCommitInfo(storeName, storeInfos, appHash)
assert.Error(t, err, "appHash doesn't match to the merkle root of multiStoreCommitInfo")
}
func TestVerifyRangeProof(t *testing.T) {
tree := iavl.NewTree(nil, 0)
rand := cmn.NewRand()
rand.Seed(0) // for determinism
for _, ikey := range []byte{0x11, 0x32, 0x50, 0x72, 0x99} {
key := []byte{ikey}
tree.Set(key, []byte(rand.Str(8)))
}
root := tree.Hash()
key := []byte{0x32}
val, proof, err := tree.GetWithProof(key)
assert.Nil(t, err)
assert.NotEmpty(t, val)
assert.NotEmpty(t, proof)
err = VerifyRangeProof(key, val, root, proof)
assert.Nil(t, err)
key = []byte{0x40}
val, proof, err = tree.GetWithProof(key)
assert.Nil(t, err)
assert.Empty(t, val)
assert.NotEmpty(t, proof)
err = VerifyRangeProof(key, val, root, proof)
assert.Nil(t, err)
}

12
store/rootmultistore.go
View File

@ -291,6 +291,18 @@ func (rs *rootMultiStore) Query(req abci.RequestQuery) abci.ResponseQuery {
// trim the path and make the query
req.Path = subpath
res := queryable.Query(req)
if !req.Prove || !RequireProof(subpath) {
return res
}
commitInfo, errMsg := getCommitInfo(rs.db, res.Height)
if errMsg != nil {
return sdk.ErrInternal(errMsg.Error()).QueryResult()
}
res.Proof = buildMultiStoreProof(res.Proof, storeName, commitInfo.StoreInfos)
return res
}

12
tests/util.go
View File

@ -10,6 +10,7 @@ import (
tmclient "github.com/tendermint/tendermint/rpc/client"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
rpcclient "github.com/tendermint/tendermint/rpc/lib/client"
"strings"
)
// Wait for the next tendermint block from the Tendermint RPC
@ -185,6 +186,17 @@ func WaitForRPC(laddr string) {
}
}
// ExtractPortFromAddress extract port from listenAddress
// The listenAddress must be some strings like tcp://0.0.0.0:12345
func ExtractPortFromAddress(listenAddress string) string {
stringList := strings.Split(listenAddress, ":")
length := len(stringList)
if length != 3 {
panic(fmt.Errorf("expected listen address: tcp://0.0.0.0:12345, got %s", listenAddress))
}
return stringList[2]
}
var cdc = amino.NewCodec()
func init() {