From 5c4397ab3019eb2b568c2473ed26d11946555cb1 Mon Sep 17 00:00:00 2001 From: Martin Dyring-Andersen Date: Tue, 3 Oct 2017 13:22:51 +0200 Subject: [PATCH 01/34] Run tests on AppVeyor --- appveyor.yml | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 appveyor.yml diff --git a/appveyor.yml b/appveyor.yml new file mode 100644 index 000000000..60ca0b312 --- /dev/null +++ b/appveyor.yml @@ -0,0 +1,14 @@ +version: 1.0.{build} +configuration: Release +platform: +- x64 +- x86 +clone_folder: c:\go\path\src\github.com\tendermint\tendermint +before_build: +- cmd: set GOPATH=%GOROOT%\path +- cmd: set PATH=%GOPATH%\bin;%PATH% +- cmd: go get github.com/Masterminds/glide +- cmd: glide install +build_script: +- cmd: go test ./... +test: off From c6f025f40e120677ca0ad64510a3849124428480 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Wed, 6 Dec 2017 15:57:00 -0600 Subject: [PATCH 02/34] generate WAL on the fly (Refs #468) --- consensus/replay_test.go | 5 +- consensus/test_data/README.md | 36 ------ consensus/test_data/build.sh | 148 --------------------- consensus/test_data/many_blocks.cswal | Bin 16661 -> 0 bytes consensus/wal.go | 2 +- consensus/wal_test.go | 9 +- consensus/walgen.go | 178 ++++++++++++++++++++++++++ scripts/cutWALUntil/main.go | 65 ---------- 8 files changed, 188 insertions(+), 255 deletions(-) delete mode 100644 consensus/test_data/README.md delete mode 100755 consensus/test_data/build.sh delete mode 100644 consensus/test_data/many_blocks.cswal create mode 100644 consensus/walgen.go delete mode 100644 scripts/cutWALUntil/main.go diff --git a/consensus/replay_test.go b/consensus/replay_test.go index af0af3e78..8643427c0 100644 --- a/consensus/replay_test.go +++ b/consensus/replay_test.go @@ -265,7 +265,7 @@ func (w *crashingWAL) Wait() { w.next.Wait() } // Handshake Tests var ( - NUM_BLOCKS = 6 // number of blocks in the test_data/many_blocks.cswal + NUM_BLOCKS = 6 mempool = types.MockMempool{} ) @@ -324,8 +324,7 @@ func writeWAL(walMsgs []byte) string { func testHandshakeReplay(t *testing.T, nBlocks int, mode uint) { config := ResetConfig("proxy_test_") - // copy the many_blocks file - walBody, err := cmn.ReadFile(path.Join(data_dir, "many_blocks.cswal")) + walBody, err := GenWAL(NUM_BLOCKS) if err != nil { t.Fatal(err) } diff --git a/consensus/test_data/README.md b/consensus/test_data/README.md deleted file mode 100644 index 822f16c04..000000000 --- a/consensus/test_data/README.md +++ /dev/null @@ -1,36 +0,0 @@ -# Generating test data - -To generate the data, run `build.sh`. See that script for more details. - -Make sure to adjust the stepChanges in the testCases if the number of messages changes. -This sometimes happens for the `small_block2.cswal`, where the number of block parts changes between 4 and 5. - -If you need to change the signatures, you can use a script as follows: -The privBytes comes from `config/tendermint_test/...`: - -``` -package main - -import ( - "encoding/hex" - "fmt" - - "github.com/tendermint/go-crypto" -) - -func main() { - signBytes, err := hex.DecodeString("7B22636861696E5F6964223A2274656E6465726D696E745F74657374222C22766F7465223A7B22626C6F636B5F68617368223A2242453544373939433846353044354645383533364334333932464443384537423342313830373638222C22626C6F636B5F70617274735F686561646572223A506172745365747B543A31204236323237323535464632307D2C22686569676874223A312C22726F756E64223A302C2274797065223A327D7D") - if err != nil { - panic(err) - } - privBytes, err := hex.DecodeString("27F82582AEFAE7AB151CFB01C48BB6C1A0DA78F9BDDA979A9F70A84D074EB07D3B3069C422E19688B45CBFAE7BB009FC0FA1B1EA86593519318B7214853803C8") - if err != nil { - panic(err) - } - privKey := crypto.PrivKeyEd25519{} - copy(privKey[:], privBytes) - signature := privKey.Sign(signBytes) - fmt.Printf("Signature Bytes: %X\n", signature.Bytes()) -} -``` - diff --git a/consensus/test_data/build.sh b/consensus/test_data/build.sh deleted file mode 100755 index 6f410c700..000000000 --- a/consensus/test_data/build.sh +++ /dev/null @@ -1,148 +0,0 @@ -#!/usr/bin/env bash - -# Requires: killall command and jq JSON processor. - -# Get the parent directory of where this script is. -SOURCE="${BASH_SOURCE[0]}" -while [ -h "$SOURCE" ] ; do SOURCE="$(readlink "$SOURCE")"; done -DIR="$( cd -P "$( dirname "$SOURCE" )/../.." && pwd )" - -# Change into that dir because we expect that. -cd "$DIR" || exit 1 - -# Make sure we have a tendermint command. -if ! hash tendermint 2>/dev/null; then - make install -fi - -# Make sure we have a cutWALUntil binary. -cutWALUntil=./scripts/cutWALUntil/cutWALUntil -cutWALUntilDir=$(dirname $cutWALUntil) -if ! hash $cutWALUntil 2>/dev/null; then - cd "$cutWALUntilDir" && go build && cd - || exit 1 -fi - -TMHOME=$(mktemp -d) -export TMHOME="$TMHOME" - -if [[ ! -d "$TMHOME" ]]; then - echo "Could not create temp directory" - exit 1 -else - echo "TMHOME: ${TMHOME}" -fi - -# TODO: eventually we should replace with `tendermint init --test` -DIR_TO_COPY=$HOME/.tendermint_test/consensus_state_test -if [ ! -d "$DIR_TO_COPY" ]; then - echo "$DIR_TO_COPY does not exist. Please run: go test ./consensus" - exit 1 -fi -echo "==> Copying ${DIR_TO_COPY} to ${TMHOME} directory..." -cp -r "$DIR_TO_COPY"/* "$TMHOME" - -# preserve original genesis file because later it will be modified (see small_block2) -cp "$TMHOME/genesis.json" "$TMHOME/genesis.json.bak" - -function reset(){ - echo "==> Resetting tendermint..." - tendermint unsafe_reset_all - cp "$TMHOME/genesis.json.bak" "$TMHOME/genesis.json" -} - -reset - -# function empty_block(){ -# echo "==> Starting tendermint..." -# tendermint node --proxy_app=persistent_dummy &> /dev/null & -# sleep 5 -# echo "==> Killing tendermint..." -# killall tendermint - -# echo "==> Copying WAL log..." -# $cutWALUntil "$TMHOME/data/cs.wal/wal" 1 consensus/test_data/new_empty_block.cswal -# mv consensus/test_data/new_empty_block.cswal consensus/test_data/empty_block.cswal - -# reset -# } - -function many_blocks(){ - bash scripts/txs/random.sh 1000 36657 &> /dev/null & - PID=$! - echo "==> Starting tendermint..." - tendermint node --proxy_app=persistent_dummy &> /dev/null & - sleep 10 - echo "==> Killing tendermint..." - kill -9 $PID - killall tendermint - - echo "==> Copying WAL log..." - $cutWALUntil "$TMHOME/data/cs.wal/wal" 6 consensus/test_data/new_many_blocks.cswal - mv consensus/test_data/new_many_blocks.cswal consensus/test_data/many_blocks.cswal - - reset -} - - -# function small_block1(){ -# bash scripts/txs/random.sh 1000 36657 &> /dev/null & -# PID=$! -# echo "==> Starting tendermint..." -# tendermint node --proxy_app=persistent_dummy &> /dev/null & -# sleep 10 -# echo "==> Killing tendermint..." -# kill -9 $PID -# killall tendermint - -# echo "==> Copying WAL log..." -# $cutWALUntil "$TMHOME/data/cs.wal/wal" 1 consensus/test_data/new_small_block1.cswal -# mv consensus/test_data/new_small_block1.cswal consensus/test_data/small_block1.cswal - -# reset -# } - - -# # block part size = 512 -# function small_block2(){ -# cat "$TMHOME/genesis.json" | jq '. + {consensus_params: {block_size_params: {max_bytes: 22020096}, block_gossip_params: {block_part_size_bytes: 512}}}' > "$TMHOME/new_genesis.json" -# mv "$TMHOME/new_genesis.json" "$TMHOME/genesis.json" -# bash scripts/txs/random.sh 1000 36657 &> /dev/null & -# PID=$! -# echo "==> Starting tendermint..." -# tendermint node --proxy_app=persistent_dummy &> /dev/null & -# sleep 5 -# echo "==> Killing tendermint..." -# kill -9 $PID -# killall tendermint - -# echo "==> Copying WAL log..." -# $cutWALUntil "$TMHOME/data/cs.wal/wal" 1 consensus/test_data/new_small_block2.cswal -# mv consensus/test_data/new_small_block2.cswal consensus/test_data/small_block2.cswal - -# reset -# } - - - -case "$1" in - # "small_block1") - # small_block1 - # ;; - # "small_block2") - # small_block2 - # ;; - # "empty_block") - # empty_block - # ;; - "many_blocks") - many_blocks - ;; - *) - # small_block1 - # small_block2 - # empty_block - many_blocks -esac - -echo "==> Cleaning up..." -rm -rf "$TMHOME" diff --git a/consensus/test_data/many_blocks.cswal 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z#`mwKyOze=Wq{$Zc}~{igrj#2Lpgroh{`PTXK9oZtZ3&hV?Ll*loeb1)7sb|J~_X1k^LEGX^5K5+|5x|PcFBaXe3tNs3X7oPG_ zdVKtzKQ%S#aqS@`Inb< diff --git a/consensus/wal.go b/consensus/wal.go index 69519c165..c6367c7d1 100644 --- a/consensus/wal.go +++ b/consensus/wal.go @@ -30,7 +30,7 @@ type TimedWALMessage struct { } // EndHeightMessage marks the end of the given height inside WAL. -// @internal used by scripts/cutWALUntil util. +// @internal used by scripts/wal2json util. type EndHeightMessage struct { Height int64 `json:"height"` } diff --git a/consensus/wal_test.go b/consensus/wal_test.go index 38f2ce034..d81400b11 100644 --- a/consensus/wal_test.go +++ b/consensus/wal_test.go @@ -3,7 +3,6 @@ package consensus import ( "bytes" "crypto/rand" - "path" "sync" "testing" "time" @@ -43,7 +42,13 @@ func TestWALEncoderDecoder(t *testing.T) { } func TestSearchForEndHeight(t *testing.T) { - wal, err := NewWAL(path.Join(data_dir, "many_blocks.cswal"), false) + walBody, err := GenWAL(6) + if err != nil { + t.Fatal(err) + } + walFile := writeWAL(walBody) + + wal, err := NewWAL(walFile, false) if err != nil { t.Fatal(err) } diff --git a/consensus/walgen.go b/consensus/walgen.go new file mode 100644 index 000000000..2f541f1ff --- /dev/null +++ b/consensus/walgen.go @@ -0,0 +1,178 @@ +// walgen provides an utility function for generating WAL on the fly. +package consensus + +import ( + "bufio" + "bytes" + "fmt" + "math/rand" + "os" + "path/filepath" + "strings" + "time" + + "github.com/pkg/errors" + "github.com/tendermint/abci/example/dummy" + bc "github.com/tendermint/tendermint/blockchain" + cfg "github.com/tendermint/tendermint/config" + "github.com/tendermint/tendermint/proxy" + sm "github.com/tendermint/tendermint/state" + "github.com/tendermint/tendermint/types" + auto "github.com/tendermint/tmlibs/autofile" + "github.com/tendermint/tmlibs/db" + "github.com/tendermint/tmlibs/log" +) + +// GenWAL generates a consensus WAL. It does this by spining up a new node with a +// dummy application and special consensus wal instance (byteBufferWAL) and +// waits until numBlocks are created. Then it returns a WAL body. +func GenWAL(numBlocks int) (body []byte, err error) { + config := getConfig() + + app := dummy.NewPersistentDummyApplication(filepath.Join(config.DBDir(), "genwal")) + + logger := log.TestingLogger().With("walgen", "walgen") + + ///////////////////////////////////////////////////////////////////////////// + // COPY PASTE FROM node.go WITH A FEW MODIFICATIONS + // NOTE: we can't import node package because of circular dependency + privValidatorFile := config.PrivValidatorFile() + privValidator := types.LoadOrGenPrivValidatorFS(privValidatorFile) + genDoc, err := types.GenesisDocFromFile(config.GenesisFile()) + if err != nil { + return nil, errors.Wrap(err, "failed to read genesis file") + } + stateDB := db.NewMemDB() + blockStoreDB := db.NewMemDB() + state, err := sm.MakeGenesisState(stateDB, genDoc) + state.SetLogger(logger.With("module", "state")) + if err != nil { + return nil, errors.Wrap(err, "failed to make genesis state") + } + blockStore := bc.NewBlockStore(blockStoreDB) + handshaker := NewHandshaker(state, blockStore) + proxyApp := proxy.NewAppConns(proxy.NewLocalClientCreator(app), handshaker) + proxyApp.SetLogger(logger.With("module", "proxy")) + if err := proxyApp.Start(); err != nil { + return nil, errors.Wrap(err, "failed to start proxy app connections") + } + defer proxyApp.Stop() + eventBus := types.NewEventBus() + eventBus.SetLogger(logger.With("module", "events")) + if err := eventBus.Start(); err != nil { + return nil, errors.Wrap(err, "failed to start event bus") + } + mempool := types.MockMempool{} + consensusState := NewConsensusState(config.Consensus, state.Copy(), proxyApp.Consensus(), blockStore, mempool) + consensusState.SetLogger(logger) + consensusState.SetEventBus(eventBus) + if privValidator != nil { + consensusState.SetPrivValidator(privValidator) + } + // END OF COPY PASTE + ///////////////////////////////////////////////////////////////////////////// + + // set consensus wal to buffered WAL, which will write all incoming msgs to buffer + var b bytes.Buffer + wr := bufio.NewWriter(&b) + numBlocksWritten := make(chan struct{}) + wal := &byteBufferWAL{enc: NewWALEncoder(wr), heightToStop: int64(numBlocks), signalWhenStopsTo: numBlocksWritten} + wal.Save(EndHeightMessage{0}) + consensusState.wal = wal + + if err := consensusState.Start(); err != nil { + return nil, errors.Wrap(err, "failed to start consensus state") + } + defer consensusState.Stop() + + select { + case <-numBlocksWritten: + wr.Flush() + return b.Bytes(), nil + case <-time.After(time.Duration(2*numBlocks) * time.Second): + return b.Bytes(), fmt.Errorf("waited too long for tendermint to produce %d blocks", numBlocks) + } +} + +// f**ing long, but unique for each test +func makePathname() string { + // get path + p, err := os.Getwd() + if err != nil { + panic(err) + } + fmt.Println(p) + sep := string(filepath.Separator) + return strings.Replace(p, sep, "_", -1) +} + +func randPort() int { + // returns between base and base + spread + base, spread := 20000, 20000 + return base + rand.Intn(spread) +} + +func makeAddrs() (string, string, string) { + start := randPort() + return fmt.Sprintf("tcp://0.0.0.0:%d", start), + fmt.Sprintf("tcp://0.0.0.0:%d", start+1), + fmt.Sprintf("tcp://0.0.0.0:%d", start+2) +} + +// getConfig returns a config for test cases +func getConfig() *cfg.Config { + pathname := makePathname() + c := cfg.ResetTestRoot(pathname) + + // and we use random ports to run in parallel + tm, rpc, grpc := makeAddrs() + c.P2P.ListenAddress = tm + c.RPC.ListenAddress = rpc + c.RPC.GRPCListenAddress = grpc + return c +} + +// byteBufferWAL is a WAL which writes all msgs to a byte buffer. Writing stops +// when the heightToStop is reached. Client will be notified via +// signalWhenStopsTo channel. +type byteBufferWAL struct { + enc *WALEncoder + stopped bool + heightToStop int64 + signalWhenStopsTo chan struct{} +} + +var fixedTime, err = time.Parse(time.RFC3339, "2017-01-02T15:04:05Z") + +// Save writes message to the internal buffer except when heightToStop is +// reached, in which case it signal the caller via signalWhenStopsTo and skip +// writing. +func (w *byteBufferWAL) Save(m WALMessage) { + if w.stopped { + return + } + + if endMsg, ok := m.(EndHeightMessage); ok { + if endMsg.Height == w.heightToStop { + w.signalWhenStopsTo <- struct{}{} + w.stopped = true + return + } + } + + err := w.enc.Encode(&TimedWALMessage{fixedTime, m}) + if err != nil { + panic(fmt.Sprintf("failed to encode the msg %v", m)) + } +} + +func (w *byteBufferWAL) Group() *auto.Group { + panic("not implemented") +} +func (w *byteBufferWAL) SearchForEndHeight(height int64) (gr *auto.GroupReader, found bool, err error) { + return nil, false, nil +} + +func (w *byteBufferWAL) Start() error { return nil } +func (w *byteBufferWAL) Stop() error { return nil } +func (w *byteBufferWAL) Wait() {} diff --git a/scripts/cutWALUntil/main.go b/scripts/cutWALUntil/main.go deleted file mode 100644 index 843368952..000000000 --- a/scripts/cutWALUntil/main.go +++ /dev/null @@ -1,65 +0,0 @@ -/* - cutWALUntil is a small utility for cutting a WAL until the given height - (inclusively). Note it does not include last cs.EndHeightMessage. - - Usage: - cutWALUntil height-to-stop -*/ -package main - -import ( - "fmt" - "io" - "os" - "strconv" - - cs "github.com/tendermint/tendermint/consensus" -) - -func main() { - if len(os.Args) < 4 { - fmt.Println("3 arguments required: ") - os.Exit(1) - } - - var heightToStop int64 - var err error - if heightToStop, err = strconv.ParseInt(os.Args[2], 10, 64); err != nil { - panic(fmt.Errorf("failed to parse height: %v", err)) - } - - in, err := os.Open(os.Args[1]) - if err != nil { - panic(fmt.Errorf("failed to open input WAL file: %v", err)) - } - defer in.Close() - - out, err := os.Create(os.Args[3]) - if err != nil { - panic(fmt.Errorf("failed to open output WAL file: %v", err)) - } - defer out.Close() - - enc := cs.NewWALEncoder(out) - dec := cs.NewWALDecoder(in) - - for { - msg, err := dec.Decode() - if err == io.EOF { - break - } else if err != nil { - panic(fmt.Errorf("failed to decode msg: %v", err)) - } - - if m, ok := msg.Msg.(cs.EndHeightMessage); ok { - if m.Height == heightToStop { - break - } - } - - err = enc.Encode(msg) - if err != nil { - panic(fmt.Errorf("failed to encode msg: %v", err)) - } - } -} From 5cb936fa004c293d2c64ac47e9648740c6bf8d90 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Wed, 6 Dec 2017 18:28:14 -0600 Subject: [PATCH 03/34] fixes after my own review --- consensus/replay_test.go | 15 +++++++++------ consensus/{walgen.go => wal_generator.go} | 23 +++++++++++++---------- consensus/wal_test.go | 4 ++-- 3 files changed, 24 insertions(+), 18 deletions(-) rename consensus/{walgen.go => wal_generator.go} (87%) diff --git a/consensus/replay_test.go b/consensus/replay_test.go index 8643427c0..a1e06c65c 100644 --- a/consensus/replay_test.go +++ b/consensus/replay_test.go @@ -264,9 +264,12 @@ func (w *crashingWAL) Wait() { w.next.Wait() } //------------------------------------------------------------------------------------------ // Handshake Tests -var ( +const ( NUM_BLOCKS = 6 - mempool = types.MockMempool{} +) + +var ( + mempool = types.MockMempool{} ) //--------------------------------------- @@ -305,12 +308,12 @@ func TestHandshakeReplayNone(t *testing.T) { } } -func writeWAL(walMsgs []byte) string { +func tempWALWithData(data []byte) string { walFile, err := ioutil.TempFile("", "wal") if err != nil { panic(fmt.Errorf("failed to create temp WAL file: %v", err)) } - _, err = walFile.Write(walMsgs) + _, err = walFile.Write(data) if err != nil { panic(fmt.Errorf("failed to write to temp WAL file: %v", err)) } @@ -324,11 +327,11 @@ func writeWAL(walMsgs []byte) string { func testHandshakeReplay(t *testing.T, nBlocks int, mode uint) { config := ResetConfig("proxy_test_") - walBody, err := GenWAL(NUM_BLOCKS) + walBody, err := WALWithNBlocks(NUM_BLOCKS) if err != nil { t.Fatal(err) } - walFile := writeWAL(walBody) + walFile := tempWALWithData(walBody) config.Consensus.SetWalFile(walFile) privVal := types.LoadPrivValidatorFS(config.PrivValidatorFile()) diff --git a/consensus/walgen.go b/consensus/wal_generator.go similarity index 87% rename from consensus/walgen.go rename to consensus/wal_generator.go index 2f541f1ff..8a2e21821 100644 --- a/consensus/walgen.go +++ b/consensus/wal_generator.go @@ -1,4 +1,3 @@ -// walgen provides an utility function for generating WAL on the fly. package consensus import ( @@ -23,15 +22,17 @@ import ( "github.com/tendermint/tmlibs/log" ) -// GenWAL generates a consensus WAL. It does this by spining up a new node with a -// dummy application and special consensus wal instance (byteBufferWAL) and -// waits until numBlocks are created. Then it returns a WAL body. -func GenWAL(numBlocks int) (body []byte, err error) { +// WALWithNBlocks generates a consensus WAL. It does this by spining up a +// stripped down version of node (proxy app, event bus, consensus state) with a +// persistent dummy application and special consensus wal instance +// (byteBufferWAL) and waits until numBlocks are created. Then it returns a WAL +// content. +func WALWithNBlocks(numBlocks int) (data []byte, err error) { config := getConfig() - app := dummy.NewPersistentDummyApplication(filepath.Join(config.DBDir(), "genwal")) + app := dummy.NewPersistentDummyApplication(filepath.Join(config.DBDir(), "wal_generator")) - logger := log.TestingLogger().With("walgen", "walgen") + logger := log.NewNopLogger() // log.TestingLogger().With("wal_generator", "wal_generator") ///////////////////////////////////////////////////////////////////////////// // COPY PASTE FROM node.go WITH A FEW MODIFICATIONS @@ -77,6 +78,7 @@ func GenWAL(numBlocks int) (body []byte, err error) { wr := bufio.NewWriter(&b) numBlocksWritten := make(chan struct{}) wal := &byteBufferWAL{enc: NewWALEncoder(wr), heightToStop: int64(numBlocks), signalWhenStopsTo: numBlocksWritten} + // see wal.go#103 wal.Save(EndHeightMessage{0}) consensusState.wal = wal @@ -142,11 +144,12 @@ type byteBufferWAL struct { signalWhenStopsTo chan struct{} } -var fixedTime, err = time.Parse(time.RFC3339, "2017-01-02T15:04:05Z") +// needed for determinism +var fixedTime, _ = time.Parse(time.RFC3339, "2017-01-02T15:04:05Z") // Save writes message to the internal buffer except when heightToStop is -// reached, in which case it signal the caller via signalWhenStopsTo and skip -// writing. +// reached, in which case it will signal the caller via signalWhenStopsTo and +// skip writing. func (w *byteBufferWAL) Save(m WALMessage) { if w.stopped { return diff --git a/consensus/wal_test.go b/consensus/wal_test.go index d81400b11..8ec1a7c2c 100644 --- a/consensus/wal_test.go +++ b/consensus/wal_test.go @@ -42,11 +42,11 @@ func TestWALEncoderDecoder(t *testing.T) { } func TestSearchForEndHeight(t *testing.T) { - walBody, err := GenWAL(6) + walBody, err := WALWithNBlocks(6) if err != nil { t.Fatal(err) } - walFile := writeWAL(walBody) + walFile := tempWALWithData(walBody) wal, err := NewWAL(walFile, false) if err != nil { From 07571741c516455b92989bb2010391c2274fa863 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Thu, 7 Dec 2017 11:33:00 -0600 Subject: [PATCH 04/34] [consensus] remove WAL separator (Refs #785) We don't really need a separator unless we have complex structures (rows, cells like RDBMS have https://www.sqlite.org/fileformat.html). --- consensus/wal.go | 28 ---------------------------- consensus/wal_generator.go | 2 +- rpc/test/helpers.go | 2 +- 3 files changed, 2 insertions(+), 30 deletions(-) diff --git a/consensus/wal.go b/consensus/wal.go index c6367c7d1..4ee4c09b0 100644 --- a/consensus/wal.go +++ b/consensus/wal.go @@ -20,10 +20,6 @@ import ( //-------------------------------------------------------- // types and functions for savings consensus messages -var ( - walSeparator = []byte{55, 127, 6, 130} // 0x377f0682 - magic number -) - type TimedWALMessage struct { Time time.Time `json:"time"` // for debugging purposes Msg WALMessage `json:"msg"` @@ -209,11 +205,6 @@ func (enc *WALEncoder) Encode(v interface{}) error { _, err := enc.wr.Write(msg) - if err == nil { - // TODO [Anton Kaliaev 23 Oct 2017]: remove separator - _, err = enc.wr.Write(walSeparator) - } - return err } @@ -278,28 +269,9 @@ func (dec *WALDecoder) Decode() (*TimedWALMessage, error) { return nil, fmt.Errorf("failed to decode data: %v", err) } - // TODO [Anton Kaliaev 23 Oct 2017]: remove separator - if err = readSeparator(dec.rd); err != nil { - return nil, err - } - return res, err } -// readSeparator reads a separator from r. It returns any error from underlying -// reader or if it's not a separator. -func readSeparator(r io.Reader) error { - b := make([]byte, len(walSeparator)) - _, err := r.Read(b) - if err != nil { - return fmt.Errorf("failed to read separator: %v", err) - } - if !bytes.Equal(b, walSeparator) { - return fmt.Errorf("not a separator: %v", b) - } - return nil -} - type nilWAL struct{} func (nilWAL) Save(m WALMessage) {} diff --git a/consensus/wal_generator.go b/consensus/wal_generator.go index 8a2e21821..6f8bb8df3 100644 --- a/consensus/wal_generator.go +++ b/consensus/wal_generator.go @@ -103,7 +103,7 @@ func makePathname() string { if err != nil { panic(err) } - fmt.Println(p) + // fmt.Println(p) sep := string(filepath.Separator) return strings.Replace(p, sep, "_", -1) } diff --git a/rpc/test/helpers.go b/rpc/test/helpers.go index 73da30ad6..69fe7aa8c 100644 --- a/rpc/test/helpers.go +++ b/rpc/test/helpers.go @@ -51,7 +51,7 @@ func makePathname() string { if err != nil { panic(err) } - fmt.Println(p) + // fmt.Println(p) sep := string(filepath.Separator) return strings.Replace(p, sep, "_", -1) } From 90944bb1a2f33cf68b9e464769071b89cb47030e Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Thu, 7 Dec 2017 11:45:50 -0600 Subject: [PATCH 05/34] be specific about what type we're encoding to be consistent with Decode, which returns TimedWALMessage --- consensus/wal.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/consensus/wal.go b/consensus/wal.go index 4ee4c09b0..5ac605d0c 100644 --- a/consensus/wal.go +++ b/consensus/wal.go @@ -191,7 +191,7 @@ func NewWALEncoder(wr io.Writer) *WALEncoder { } // Encode writes the custom encoding of v to the stream. -func (enc *WALEncoder) Encode(v interface{}) error { +func (enc *WALEncoder) Encode(v *TimedWALMessage) error { data := wire.BinaryBytes(v) crc := crc32.Checksum(data, crc32c) From 5ff0bb2100d7f127c3349df35633bab468ce25a3 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Thu, 7 Dec 2017 12:21:13 -0600 Subject: [PATCH 06/34] default moniker to the host name (Refs #920) --- cmd/tendermint/commands/root_test.go | 3 ++ config/config.go | 18 ++++++++- config/toml.go | 7 +--- config/toml_test.go | 4 +- docs/specification/configuration.rst | 3 +- rpc/core/status.go | 58 ++++++++++++++-------------- 6 files changed, 55 insertions(+), 38 deletions(-) diff --git a/cmd/tendermint/commands/root_test.go b/cmd/tendermint/commands/root_test.go index b4e30d980..8217ee166 100644 --- a/cmd/tendermint/commands/root_test.go +++ b/cmd/tendermint/commands/root_test.go @@ -32,6 +32,9 @@ func isolate(cmds ...*cobra.Command) cli.Executable { if err := os.Unsetenv("TM_HOME"); err != nil { panic(err) } + if err := os.RemoveAll(defaultRoot); err != nil { + panic(err) + } viper.Reset() config = cfg.DefaultConfig() diff --git a/config/config.go b/config/config.go index ea3fa13e4..783758896 100644 --- a/config/config.go +++ b/config/config.go @@ -2,6 +2,7 @@ package config import ( "fmt" + "os" "path/filepath" "time" ) @@ -108,7 +109,7 @@ func DefaultBaseConfig() BaseConfig { return BaseConfig{ Genesis: "genesis.json", PrivValidator: "priv_validator.json", - Moniker: "anonymous", + Moniker: defaultMoniker, ProxyApp: "tcp://127.0.0.1:46658", ABCI: "socket", LogLevel: DefaultPackageLogLevels(), @@ -456,3 +457,18 @@ func rootify(path, root string) string { } return filepath.Join(root, path) } + +//----------------------------------------------------------------------------- +// Moniker + +var defaultMoniker = getDefaultMoniker() + +// getDefaultMoniker returns a default moniker, which is the host name. If runtime +// fails to get the host name, "anonymous" will be returned. +func getDefaultMoniker() string { + moniker, err := os.Hostname() + if err != nil { + moniker = "anonymous" + } + return moniker +} diff --git a/config/toml.go b/config/toml.go index ec70ab75d..735f45c12 100644 --- a/config/toml.go +++ b/config/toml.go @@ -23,9 +23,7 @@ func EnsureRoot(rootDir string) { // Write default config file if missing. if !cmn.FileExists(configFilePath) { - // Ask user for moniker - // moniker := cfg.Prompt("Type hostname: ", "anonymous") - cmn.MustWriteFile(configFilePath, []byte(defaultConfig("anonymous")), 0644) + cmn.MustWriteFile(configFilePath, []byte(defaultConfig(defaultMoniker)), 0644) } } @@ -81,8 +79,7 @@ func ResetTestRoot(testName string) *Config { // Write default config file if missing. if !cmn.FileExists(configFilePath) { - // Ask user for moniker - cmn.MustWriteFile(configFilePath, []byte(testConfig("anonymous")), 0644) + cmn.MustWriteFile(configFilePath, []byte(testConfig(defaultMoniker)), 0644) } if !cmn.FileExists(genesisFilePath) { cmn.MustWriteFile(genesisFilePath, []byte(testGenesis), 0644) diff --git a/config/toml_test.go b/config/toml_test.go index bf3bf58f7..f927a14ca 100644 --- a/config/toml_test.go +++ b/config/toml_test.go @@ -32,7 +32,7 @@ func TestEnsureRoot(t *testing.T) { // make sure config is set properly data, err := ioutil.ReadFile(filepath.Join(tmpDir, "config.toml")) require.Nil(err) - assert.Equal([]byte(defaultConfig("anonymous")), data) + assert.Equal([]byte(defaultConfig(defaultMoniker)), data) ensureFiles(t, tmpDir, "data") } @@ -49,7 +49,7 @@ func TestEnsureTestRoot(t *testing.T) { // make sure config is set properly data, err := ioutil.ReadFile(filepath.Join(rootDir, "config.toml")) require.Nil(err) - assert.Equal([]byte(testConfig("anonymous")), data) + assert.Equal([]byte(testConfig(defaultMoniker)), data) // TODO: make sure the cfg returned and testconfig are the same! diff --git a/docs/specification/configuration.rst b/docs/specification/configuration.rst index 94801136f..74b41d09d 100644 --- a/docs/specification/configuration.rst +++ b/docs/specification/configuration.rst @@ -21,7 +21,8 @@ The main config parameters are defined - ``genesis_file``: The location of the genesis file. *Default*: ``"$TMHOME/genesis.json"`` - ``log_level``: *Default*: ``"state:info,*:error"`` -- ``moniker``: Name of this node. *Default*: ``"anonymous"`` +- ``moniker``: Name of this node. *Default*: the host name or ``"anonymous"`` + if runtime fails to get the host name - ``priv_validator_file``: Validator private key file. *Default*: ``"$TMHOME/priv_validator.json"`` - ``prof_laddr``: Profile listen address. *Default*: ``""`` diff --git a/rpc/core/status.go b/rpc/core/status.go index 0cb7acc1f..653c37f50 100644 --- a/rpc/core/status.go +++ b/rpc/core/status.go @@ -24,35 +24,35 @@ import ( // // ```json // { -// "error": "", -// "result": { -// "latest_block_time": 1.49631773695e+18, -// "latest_block_height": 22924, -// "latest_app_hash": "9D16177BC71E445476174622EA559715C293740C", -// "latest_block_hash": "75B36EEF96C277A592D8B14867098C58F68BB180", -// "pub_key": { -// "data": "68DFDA7E50F82946E7E8546BED37944A422CD1B831E70DF66BA3B8430593944D", -// "type": "ed25519" -// }, -// "node_info": { -// "other": [ -// "wire_version=0.6.2", -// "p2p_version=0.5.0", -// "consensus_version=v1/0.2.2", -// "rpc_version=0.7.0/3", -// "tx_index=on", -// "rpc_addr=tcp://0.0.0.0:46657" -// ], -// "version": "0.10.0-rc1-aa22bd84", -// "listen_addr": "10.0.2.15:46656", -// "remote_addr": "", -// "network": "test-chain-6UTNIN", -// "moniker": "anonymous", -// "pub_key": "659B9E54DD6EF9FEF28FAD40629AF0E4BD3C2563BB037132B054A176E00F1D94" -// } -// }, -// "id": "", -// "jsonrpc": "2.0" +// "result": { +// "syncing": false, +// "latest_block_time": "2017-12-07T18:19:47.617Z", +// "latest_block_height": 6, +// "latest_app_hash": "", +// "latest_block_hash": "A63D0C3307DEDCCFCC82ED411AE9108B70B29E02", +// "pub_key": { +// "data": "8C9A68070CBE33F9C445862BA1E9D96A75CEB68C0CF6ADD3652D07DCAC5D0380", +// "type": "ed25519" +// }, +// "node_info": { +// "other": [ +// "wire_version=0.7.2", +// "p2p_version=0.5.0", +// "consensus_version=v1/0.2.2", +// "rpc_version=0.7.0/3", +// "tx_index=on", +// "rpc_addr=tcp://0.0.0.0:46657" +// ], +// "version": "0.13.0-14ccc8b", +// "listen_addr": "10.0.2.15:46656", +// "remote_addr": "", +// "network": "test-chain-qhVCa2", +// "moniker": "vagrant-ubuntu-trusty-64", +// "pub_key": "844981FE99ABB19F7816F2D5E94E8A74276AB1153760A7799E925C75401856C6" +// } +// }, +// "id": "", +// "jsonrpc": "2.0" // } // ``` func Status() (*ctypes.ResultStatus, error) { From c609b186989e062af842b5491538a98475ab6ade Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Thu, 7 Dec 2017 13:17:09 -0600 Subject: [PATCH 07/34] tolerate unresolvable seeds (Refs #880) --- p2p/netaddress.go | 17 +++++++++-------- p2p/netaddress_test.go | 8 +++----- p2p/switch.go | 6 +++--- 3 files changed, 15 insertions(+), 16 deletions(-) diff --git a/p2p/netaddress.go b/p2p/netaddress.go index d424f8c32..9cb7dd2c3 100644 --- a/p2p/netaddress.go +++ b/p2p/netaddress.go @@ -5,8 +5,8 @@ package p2p import ( - "errors" "flag" + "fmt" "net" "strconv" "time" @@ -45,7 +45,6 @@ func NewNetAddress(addr net.Addr) *NetAddress { // address in the form of "IP:Port". Also resolves the host if host // is not an IP. func NewNetAddressString(addr string) (*NetAddress, error) { - host, portStr, err := net.SplitHostPort(addr) if err != nil { return nil, err @@ -73,16 +72,18 @@ func NewNetAddressString(addr string) (*NetAddress, error) { // NewNetAddressStrings returns an array of NetAddress'es build using // the provided strings. -func NewNetAddressStrings(addrs []string) ([]*NetAddress, error) { - netAddrs := make([]*NetAddress, len(addrs)) - for i, addr := range addrs { +func NewNetAddressStrings(addrs []string) ([]*NetAddress, []error) { + netAddrs := make([]*NetAddress, 0) + errs := make([]error, 0) + for _, addr := range addrs { netAddr, err := NewNetAddressString(addr) if err != nil { - return nil, errors.New(cmn.Fmt("Error in address %s: %v", addr, err)) + errs = append(errs, fmt.Errorf("Error in address %s: %v", addr, err)) + } else { + netAddrs = append(netAddrs, netAddr) } - netAddrs[i] = netAddr } - return netAddrs, nil + return netAddrs, errs } // NewNetAddressIPPort returns a new NetAddress using the provided IP diff --git a/p2p/netaddress_test.go b/p2p/netaddress_test.go index 7e899a314..db6147500 100644 --- a/p2p/netaddress_test.go +++ b/p2p/netaddress_test.go @@ -51,11 +51,9 @@ func TestNewNetAddressString(t *testing.T) { } func TestNewNetAddressStrings(t *testing.T) { - assert, require := assert.New(t), require.New(t) - addrs, err := NewNetAddressStrings([]string{"127.0.0.1:8080", "127.0.0.2:8080"}) - require.Nil(err) - - assert.Equal(2, len(addrs)) + addrs, errs := NewNetAddressStrings([]string{"127.0.0.1:8080", "127.0.0.2:8080"}) + assert.Len(t, errs, 0) + assert.Equal(t, 2, len(addrs)) } func TestNewNetAddressIPPort(t *testing.T) { diff --git a/p2p/switch.go b/p2p/switch.go index f41b82959..4fdaec6ec 100644 --- a/p2p/switch.go +++ b/p2p/switch.go @@ -298,9 +298,9 @@ func (sw *Switch) startInitPeer(peer *peer) { // DialSeeds dials a list of seeds asynchronously in random order. func (sw *Switch) DialSeeds(addrBook *AddrBook, seeds []string) error { - netAddrs, err := NewNetAddressStrings(seeds) - if err != nil { - return err + netAddrs, errs := NewNetAddressStrings(seeds) + for _, err := range errs { + sw.Logger.Error("Error in seed's address", "err", err) } if addrBook != nil { From 457c688346b565e90735431619ca3ca597ef9007 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Thu, 7 Dec 2017 13:48:31 -0600 Subject: [PATCH 08/34] update Dockerfile to point to 0.12.1 --- DOCKER/Dockerfile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/DOCKER/Dockerfile b/DOCKER/Dockerfile index 67d346b00..b27e9fe75 100644 --- a/DOCKER/Dockerfile +++ b/DOCKER/Dockerfile @@ -1,8 +1,8 @@ FROM alpine:3.6 # This is the release of tendermint to pull in. -ENV TM_VERSION 0.12.0 -ENV TM_SHA256SUM be17469e92f04fc2a3663f891da28edbaa6c37c4d2f746736571887f4790555a +ENV TM_VERSION 0.12.1 +ENV TM_SHA256SUM 8a3c554ad2c2d14bd7f72a5da22d59475ab844c567b05ae7324b3cae868e6c1c # Tendermint will be looking for genesis file in /tendermint (unless you change # `genesis_file` in config.toml). You can put your config.toml and private From 7a92a3b729d7a9b8feea0938182c62458b7892f3 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Thu, 7 Dec 2017 13:49:29 -0600 Subject: [PATCH 09/34] update docker readme --- DOCKER/README.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/DOCKER/README.md b/DOCKER/README.md index fd19c1014..ce4e3f55e 100644 --- a/DOCKER/README.md +++ b/DOCKER/README.md @@ -1,6 +1,7 @@ # Supported tags and respective `Dockerfile` links -- `0.12.0`, `latest` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/70d8afa6e952e24c573ece345560a5971bf2cc0e/DOCKER/Dockerfile) +- `0.12.1`, `latest` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/457c688346b565e90735431619ca3ca597ef9007/DOCKER/Dockerfile) +- `0.12.0` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/70d8afa6e952e24c573ece345560a5971bf2cc0e/DOCKER/Dockerfile) - `0.11.0` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/9177cc1f64ca88a4a0243c5d1773d10fba67e201/DOCKER/Dockerfile) - `0.10.0` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/e5342f4054ab784b2cd6150e14f01053d7c8deb2/DOCKER/Dockerfile) - `0.9.1`, `0.9`, [(Dockerfile)](https://github.com/tendermint/tendermint/blob/809e0e8c5933604ba8b2d096803ada7c5ec4dfd3/DOCKER/Dockerfile) From 9657d183f8333c965dfb1561cb26b8892a194341 Mon Sep 17 00:00:00 2001 From: Ethan Frey Date: Fri, 8 Dec 2017 16:29:45 +0100 Subject: [PATCH 10/34] Remove CGO_ENABLED=0 from make install It was writing to stdlib packages net, x/crypto, etc. and failing when it didn't have write access to them (which it often shouldn't) Fixes issue #941 Explained in golang issue: golang/go#18981 (fixed in develop/1.10) --- Makefile | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index fb15dfc4a..2ed827ed5 100644 --- a/Makefile +++ b/Makefile @@ -12,13 +12,13 @@ BUILD_FLAGS = -ldflags "-X github.com/tendermint/tendermint/version.GitCommit=`g all: get_vendor_deps install test install: - CGO_ENABLED=0 go install $(BUILD_FLAGS) ./cmd/tendermint + go install $(BUILD_FLAGS) ./cmd/tendermint build: - CGO_ENABLED=0 go build $(BUILD_FLAGS) -o build/tendermint ./cmd/tendermint/ + go build $(BUILD_FLAGS) -o build/tendermint ./cmd/tendermint/ build_race: - CGO_ENABLED=0 go build -race $(BUILD_FLAGS) -o build/tendermint ./cmd/tendermint + go build -race $(BUILD_FLAGS) -o build/tendermint ./cmd/tendermint # dist builds binaries for all platforms and packages them for distribution dist: From fbfd11de2c5edd8be18de7e332e9dfb75fd0b93b Mon Sep 17 00:00:00 2001 From: Ethan Buchman Date: Fri, 8 Dec 2017 11:48:05 -0500 Subject: [PATCH 11/34] add @melekes as codeowner --- .github/CODEOWNERS | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS index 074c48c94..941963366 100644 --- a/.github/CODEOWNERS +++ b/.github/CODEOWNERS @@ -1,5 +1,4 @@ # CODEOWNERS: https://help.github.com/articles/about-codeowners/ -# Everything goes through Bucky. For now. -* @ebuchman - +# Everything goes through Bucky and Anton. For now. +* @ebuchman @melekes From c84494b36b1873b697276cfd21588b7b3d793fdb Mon Sep 17 00:00:00 2001 From: Ethan Frey Date: Fri, 8 Dec 2017 17:01:24 +0100 Subject: [PATCH 12/34] Update Vagrantfile to xenial (16.04 LTS) Note default username changed from vagrant to ubuntu in the base image. --- Vagrantfile | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/Vagrantfile b/Vagrantfile index ea8042360..1864d2e93 100644 --- a/Vagrantfile +++ b/Vagrantfile @@ -2,7 +2,7 @@ # vi: set ft=ruby : Vagrant.configure("2") do |config| - config.vm.box = "ubuntu/trusty64" + config.vm.box = "ubuntu/xenial64" config.vm.provider "virtualbox" do |v| v.memory = 4096 @@ -11,29 +11,30 @@ Vagrant.configure("2") do |config| config.vm.provision "shell", inline: <<-SHELL apt-get update - apt-get install -y --no-install-recommends wget curl jq shellcheck bsdmainutils psmisc + apt-get install -y --no-install-recommends git wget curl jq \ + make shellcheck bsdmainutils psmisc wget -qO- https://get.docker.com/ | sh usermod -a -G docker vagrant apt-get autoremove -y - apt-get install -y --no-install-recommends git curl -O https://storage.googleapis.com/golang/go1.9.linux-amd64.tar.gz tar -xvf go1.9.linux-amd64.tar.gz rm -rf /usr/local/go mv go /usr/local rm -f go1.9.linux-amd64.tar.gz - mkdir -p /home/vagrant/go/bin - echo 'export PATH=$PATH:/usr/local/go/bin:/home/vagrant/go/bin' >> /home/vagrant/.bash_profile - echo 'export GOPATH=/home/vagrant/go' >> /home/vagrant/.bash_profile - echo 'export LC_ALL=en_US.UTF-8' >> /home/vagrant/.bash_profile + mkdir -p /home/ubuntu/go/bin + echo 'export PATH=$PATH:/usr/local/go/bin:/home/ubuntu/go/bin' >> /home/ubuntu/.bash_profile + echo 'export GOPATH=/home/ubuntu/go' >> /home/ubuntu/.bash_profile - mkdir -p /home/vagrant/go/src/github.com/tendermint - ln -s /vagrant /home/vagrant/go/src/github.com/tendermint/tendermint + echo 'export LC_ALL=en_US.UTF-8' >> /home/ubuntu/.bash_profile - chown -R vagrant:vagrant /home/vagrant/go + mkdir -p /home/ubuntu/go/src/github.com/tendermint + ln -s /vagrant /home/ubuntu/go/src/github.com/tendermint/tendermint - su - vagrant -c 'cd /home/vagrant/go/src/github.com/tendermint/tendermint && make get_vendor_deps' + chown -R ubuntu:ubuntu /home/ubuntu/go + + su - ubuntu -c 'cd /home/ubuntu/go/src/github.com/tendermint/tendermint && make get_vendor_deps' SHELL end From 5bcd95f01f7c23d8f6cf889ea807af4b70cd6db6 Mon Sep 17 00:00:00 2001 From: Ethan Frey Date: Fri, 8 Dec 2017 18:09:57 +0100 Subject: [PATCH 13/34] Use apt-get/ppa instead of tarballs for golang/docker Minor cleanup and comments --- Vagrantfile | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/Vagrantfile b/Vagrantfile index 1864d2e93..a3dd9449a 100644 --- a/Vagrantfile +++ b/Vagrantfile @@ -10,22 +10,27 @@ Vagrant.configure("2") do |config| end config.vm.provision "shell", inline: <<-SHELL + # add docker repo + curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add - + add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable" + + # and golang 1.9 support + # add-apt-repository ppa:gophers/archive + add-apt-repository ppa:longsleep/golang-backports + + # install base requirements apt-get update - apt-get install -y --no-install-recommends git wget curl jq \ + apt-get install -y --no-install-recommends wget curl jq \ make shellcheck bsdmainutils psmisc + apt-get install -y docker-ce golang-1.9-go - wget -qO- https://get.docker.com/ | sh - usermod -a -G docker vagrant - apt-get autoremove -y - - curl -O https://storage.googleapis.com/golang/go1.9.linux-amd64.tar.gz - tar -xvf go1.9.linux-amd64.tar.gz - rm -rf /usr/local/go - mv go /usr/local - rm -f go1.9.linux-amd64.tar.gz + # needed for go + apt-get install -y git + # needed for docker + usermod -a -G docker ubuntu mkdir -p /home/ubuntu/go/bin - echo 'export PATH=$PATH:/usr/local/go/bin:/home/ubuntu/go/bin' >> /home/ubuntu/.bash_profile + echo 'export PATH=$PATH:/usr/lib/go-1.9/bin:/home/ubuntu/go/bin' >> /home/ubuntu/.bash_profile echo 'export GOPATH=/home/ubuntu/go' >> /home/ubuntu/.bash_profile echo 'export LC_ALL=en_US.UTF-8' >> /home/ubuntu/.bash_profile @@ -35,6 +40,7 @@ Vagrant.configure("2") do |config| chown -R ubuntu:ubuntu /home/ubuntu/go - su - ubuntu -c 'cd /home/ubuntu/go/src/github.com/tendermint/tendermint && make get_vendor_deps' + # get all deps and tools, ready to install/test + su - ubuntu -c 'cd /home/ubuntu/go/src/github.com/tendermint/tendermint && make get_vendor_deps && make tools' SHELL end From a28b3fff49dce2fb31f90abb2fc693834e0029c2 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Fri, 8 Dec 2017 11:34:34 -0600 Subject: [PATCH 14/34] update Dockerfile to 0.13.0 --- DOCKER/Dockerfile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/DOCKER/Dockerfile b/DOCKER/Dockerfile index b27e9fe75..c0d09d951 100644 --- a/DOCKER/Dockerfile +++ b/DOCKER/Dockerfile @@ -1,8 +1,8 @@ FROM alpine:3.6 # This is the release of tendermint to pull in. -ENV TM_VERSION 0.12.1 -ENV TM_SHA256SUM 8a3c554ad2c2d14bd7f72a5da22d59475ab844c567b05ae7324b3cae868e6c1c +ENV TM_VERSION 0.13.0 +ENV TM_SHA256SUM 36d773d4c2890addc61cc87a72c1e9c21c89516921b0defb0edfebde719b4b85 # Tendermint will be looking for genesis file in /tendermint (unless you change # `genesis_file` in config.toml). You can put your config.toml and private From a199ec2813768044e23a5de6e8bd8ddd1e30b7bc Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Fri, 8 Dec 2017 11:35:35 -0600 Subject: [PATCH 15/34] update docker readme --- DOCKER/README.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/DOCKER/README.md b/DOCKER/README.md index ce4e3f55e..fceab5feb 100644 --- a/DOCKER/README.md +++ b/DOCKER/README.md @@ -1,6 +1,7 @@ # Supported tags and respective `Dockerfile` links -- `0.12.1`, `latest` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/457c688346b565e90735431619ca3ca597ef9007/DOCKER/Dockerfile) +- `0.13.0`, `latest` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/a28b3fff49dce2fb31f90abb2fc693834e0029c2/DOCKER/Dockerfile) +- `0.12.1` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/457c688346b565e90735431619ca3ca597ef9007/DOCKER/Dockerfile) - `0.12.0` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/70d8afa6e952e24c573ece345560a5971bf2cc0e/DOCKER/Dockerfile) - `0.11.0` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/9177cc1f64ca88a4a0243c5d1773d10fba67e201/DOCKER/Dockerfile) - `0.10.0` [(Dockerfile)](https://github.com/tendermint/tendermint/blob/e5342f4054ab784b2cd6150e14f01053d7c8deb2/DOCKER/Dockerfile) From c771964a40245b2350861832df08b3a780cbc520 Mon Sep 17 00:00:00 2001 From: Ethan Frey Date: Fri, 8 Dec 2017 18:36:58 +0100 Subject: [PATCH 16/34] Add vagrant_test to Makefile for integration tests --- Makefile | 6 ++++++ Vagrantfile | 14 +++++++++----- 2 files changed, 15 insertions(+), 5 deletions(-) diff --git a/Makefile b/Makefile index 2ed827ed5..4c835a8f5 100644 --- a/Makefile +++ b/Makefile @@ -43,6 +43,12 @@ test_release: test100: @for i in {1..100}; do make test; done +vagrant_test: + vagrant up + vagrant ssh -c 'make install' + vagrant ssh -c 'make test_race' + vagrant ssh -c 'make test_integrations' + draw_deps: # requires brew install graphviz or apt-get install graphviz go get github.com/RobotsAndPencils/goviz diff --git a/Vagrantfile b/Vagrantfile index a3dd9449a..c81f9d06f 100644 --- a/Vagrantfile +++ b/Vagrantfile @@ -29,16 +29,20 @@ Vagrant.configure("2") do |config| # needed for docker usermod -a -G docker ubuntu + # use "EOF" not EOF to avoid variable substitution of $PATH + cat << "EOF" >> /home/ubuntu/.bash_profile +export PATH=$PATH:/usr/lib/go-1.9/bin:/home/ubuntu/go/bin +export GOPATH=/home/ubuntu/go +export LC_ALL=en_US.UTF-8 +cd go/src/github.com/tendermint/tendermint +EOF + mkdir -p /home/ubuntu/go/bin - echo 'export PATH=$PATH:/usr/lib/go-1.9/bin:/home/ubuntu/go/bin' >> /home/ubuntu/.bash_profile - echo 'export GOPATH=/home/ubuntu/go' >> /home/ubuntu/.bash_profile - - echo 'export LC_ALL=en_US.UTF-8' >> /home/ubuntu/.bash_profile - mkdir -p /home/ubuntu/go/src/github.com/tendermint ln -s /vagrant /home/ubuntu/go/src/github.com/tendermint/tendermint chown -R ubuntu:ubuntu /home/ubuntu/go + chown ubuntu:ubuntu /home/ubuntu/.bash_profile # get all deps and tools, ready to install/test su - ubuntu -c 'cd /home/ubuntu/go/src/github.com/tendermint/tendermint && make get_vendor_deps && make tools' From 2112299586ec3f8a2f5020629b6890c7ab38ae3e Mon Sep 17 00:00:00 2001 From: Ethan Frey Date: Fri, 8 Dec 2017 19:17:17 +0100 Subject: [PATCH 17/34] Cleanup apt-get ala PR comments --- Vagrantfile | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Vagrantfile b/Vagrantfile index c81f9d06f..80d44f9c7 100644 --- a/Vagrantfile +++ b/Vagrantfile @@ -15,6 +15,7 @@ Vagrant.configure("2") do |config| add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable" # and golang 1.9 support + # official repo doesn't have race detection runtime... # add-apt-repository ppa:gophers/archive add-apt-repository ppa:longsleep/golang-backports @@ -24,8 +25,6 @@ Vagrant.configure("2") do |config| make shellcheck bsdmainutils psmisc apt-get install -y docker-ce golang-1.9-go - # needed for go - apt-get install -y git # needed for docker usermod -a -G docker ubuntu From 59e89e7664d7bd6171266414fa0ca5e03dd78d67 Mon Sep 17 00:00:00 2001 From: Ricardo Domingos Date: Sat, 9 Dec 2017 13:13:24 +0100 Subject: [PATCH 18/34] consensus: Fix typo on ticker.go documentation --- consensus/ticker.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/consensus/ticker.go b/consensus/ticker.go index 4762beccc..f66856f91 100644 --- a/consensus/ticker.go +++ b/consensus/ticker.go @@ -68,7 +68,7 @@ func (t *timeoutTicker) Chan() <-chan timeoutInfo { } // ScheduleTimeout schedules a new timeout by sending on the internal tickChan. -// The timeoutRoutine is alwaya available to read from tickChan, so this won't block. +// The timeoutRoutine is always available to read from tickChan, so this won't block. // The scheduling may fail if the timeoutRoutine has already scheduled a timeout for a later height/round/step. func (t *timeoutTicker) ScheduleTimeout(ti timeoutInfo) { t.tickChan <- ti From 950a64f756dad4919fa3650bf150dcbab74937e7 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Sat, 9 Dec 2017 23:40:51 -0600 Subject: [PATCH 19/34] bring back transparent websocket (Refs #945) --- glide.lock | 6 +- glide.yaml | 2 +- node/node.go | 9 +-- rpc/client/helpers.go | 8 +-- rpc/client/httpclient.go | 124 ++++++++++++++++--------------------- rpc/client/interface.go | 6 +- rpc/client/localclient.go | 50 +++------------ rpc/core/events.go | 40 +++++++----- rpc/lib/server/handlers.go | 58 ++++++----------- rpc/lib/types/types.go | 12 +++- types/event_bus.go | 6 ++ types/events.go | 40 ++++++------ 12 files changed, 155 insertions(+), 206 deletions(-) diff --git a/glide.lock b/glide.lock index 82846067b..d18ccf6e2 100644 --- a/glide.lock +++ b/glide.lock @@ -1,5 +1,5 @@ -hash: 09fc7f59ca6b718fe236368bb55f4801455295cfe455ea5865d544ee4dcfdc08 -updated: 2017-12-06T03:31:34.476581624-05:00 +hash: f420f1f858100218dad50997d939eaaf129ff654a0648a47ddc60d626ab0b8e9 +updated: 2017-12-10T05:37:46.41123196Z imports: - name: github.com/btcsuite/btcd version: 2e60448ffcc6bf78332d1fe590260095f554dd78 @@ -129,7 +129,7 @@ imports: subpackages: - iavl - name: github.com/tendermint/tmlibs - version: bfcc0217f120d3bee6730ba0789d2eb72fc2e889 + version: e4ef2835f0081c2ece83b9c1f777cf071f956e81 subpackages: - autofile - cli diff --git a/glide.yaml b/glide.yaml index 3f20a4680..e614d0a1e 100644 --- a/glide.yaml +++ b/glide.yaml @@ -34,7 +34,7 @@ import: subpackages: - iavl - package: github.com/tendermint/tmlibs - version: ~0.5.0 + version: e4ef2835f0081c2ece83b9c1f777cf071f956e81 subpackages: - autofile - cli diff --git a/node/node.go b/node/node.go index eb5509717..da4ae90c9 100644 --- a/node/node.go +++ b/node/node.go @@ -2,7 +2,6 @@ package node import ( "bytes" - "context" "encoding/json" "errors" "fmt" @@ -446,13 +445,7 @@ func (n *Node) startRPC() ([]net.Listener, error) { for i, listenAddr := range listenAddrs { mux := http.NewServeMux() rpcLogger := n.Logger.With("module", "rpc-server") - onDisconnect := rpcserver.OnDisconnect(func(remoteAddr string) { - err := n.eventBus.UnsubscribeAll(context.Background(), remoteAddr) - if err != nil { - rpcLogger.Error("Error unsubsribing from all on disconnect", "err", err) - } - }) - wm := rpcserver.NewWebsocketManager(rpccore.Routes, onDisconnect) + wm := rpcserver.NewWebsocketManager(rpccore.Routes, rpcserver.EventSubscriber(n.eventBus)) wm.SetLogger(rpcLogger.With("protocol", "websocket")) mux.HandleFunc("/websocket", wm.WebsocketHandler) rpcserver.RegisterRPCFuncs(mux, rpccore.Routes, rpcLogger) diff --git a/rpc/client/helpers.go b/rpc/client/helpers.go index e41c2d657..e7a84b6b4 100644 --- a/rpc/client/helpers.go +++ b/rpc/client/helpers.go @@ -2,7 +2,6 @@ package client import ( "context" - "fmt" "time" "github.com/pkg/errors" @@ -57,19 +56,20 @@ func WaitForHeight(c StatusClient, h int64, waiter Waiter) error { // // This handles subscribing and unsubscribing under the hood func WaitForOneEvent(c EventsClient, evtTyp string, timeout time.Duration) (types.TMEventData, error) { + const subscriber = "helpers" ctx, cancel := context.WithTimeout(context.Background(), timeout) defer cancel() evts := make(chan interface{}, 1) // register for the next event of this type - query := fmt.Sprintf("%s='%s'", types.EventTypeKey, evtTyp) - err := c.Subscribe(ctx, query, evts) + query := types.QueryForEvent(evtTyp) + err := c.Subscribe(ctx, subscriber, query, evts) if err != nil { return types.TMEventData{}, errors.Wrap(err, "failed to subscribe") } // make sure to unregister after the test is over - defer c.Unsubscribe(ctx, query) + defer c.UnsubscribeAll(ctx, subscriber) select { case evt := <-evts: diff --git a/rpc/client/httpclient.go b/rpc/client/httpclient.go index 1f49ea4d7..fff274be6 100644 --- a/rpc/client/httpclient.go +++ b/rpc/client/httpclient.go @@ -3,7 +3,6 @@ package client import ( "context" "encoding/json" - "fmt" "sync" "github.com/pkg/errors" @@ -13,6 +12,7 @@ import ( rpcclient "github.com/tendermint/tendermint/rpc/lib/client" "github.com/tendermint/tendermint/types" cmn "github.com/tendermint/tmlibs/common" + tmpubsub "github.com/tendermint/tmlibs/pubsub" ) /* @@ -204,20 +204,14 @@ type WSEvents struct { endpoint string ws *rpcclient.WSClient - subscriptions map[string]chan<- interface{} mtx sync.RWMutex - - // used for signaling the goroutine that feeds ws -> EventSwitch - quit chan bool - done chan bool + subscriptions map[string]chan<- interface{} } func newWSEvents(remote, endpoint string) *WSEvents { wsEvents := &WSEvents{ endpoint: endpoint, remote: remote, - quit: make(chan bool, 1), - done: make(chan bool, 1), subscriptions: make(map[string]chan<- interface{}), } @@ -225,87 +219,86 @@ func newWSEvents(remote, endpoint string) *WSEvents { return wsEvents } -// Start is the only way I could think the extend OnStart from -// events.eventSwitch. If only it wasn't private... -// BaseService.Start -> eventSwitch.OnStart -> WSEvents.Start -func (w *WSEvents) Start() error { - ws := rpcclient.NewWSClient(w.remote, w.endpoint, rpcclient.OnReconnect(func() { +func (w *WSEvents) OnStart() error { + w.ws = rpcclient.NewWSClient(w.remote, w.endpoint, rpcclient.OnReconnect(func() { w.redoSubscriptions() })) - err := ws.Start() - if err == nil { - w.ws = ws - go w.eventListener() + err := w.ws.Start() + if err != nil { + return err } - return err + + go w.eventListener() + return nil } // Stop wraps the BaseService/eventSwitch actions as Start does -func (w *WSEvents) Stop() error { - // send a message to quit to stop the eventListener - w.quit <- true - <-w.done - w.ws.Stop() - w.ws = nil - return nil -} - -func (w *WSEvents) Subscribe(ctx context.Context, query string, out chan<- interface{}) error { - if ch := w.getSubscription(query); ch != nil { - return errors.New("already subscribed") - } - - err := w.ws.Subscribe(ctx, query) +func (w *WSEvents) OnStop() { + err := w.ws.Stop() if err != nil { - return errors.Wrap(err, "failed to subscribe") + w.Logger.Error("failed to stop WSClient", "err", err) } - - w.mtx.Lock() - w.subscriptions[query] = out - w.mtx.Unlock() - - return nil } -func (w *WSEvents) Unsubscribe(ctx context.Context, query string) error { - err := w.ws.Unsubscribe(ctx, query) +func (w *WSEvents) Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error { + q := query.String() + + err := w.ws.Subscribe(ctx, q) if err != nil { return err } w.mtx.Lock() - defer w.mtx.Unlock() - ch, ok := w.subscriptions[query] - if ok { - close(ch) - delete(w.subscriptions, query) - } + // subscriber param is ignored because Tendermint will override it with + // remote IP anyway. + w.subscriptions[q] = out + w.mtx.Unlock() return nil } -func (w *WSEvents) UnsubscribeAll(ctx context.Context) error { +func (w *WSEvents) Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error { + q := query.String() + + err := w.ws.Unsubscribe(ctx, q) + if err != nil { + return err + } + + w.mtx.Lock() + ch, ok := w.subscriptions[q] + if ok { + close(ch) + delete(w.subscriptions, q) + } + w.mtx.Unlock() + + return nil +} + +func (w *WSEvents) UnsubscribeAll(ctx context.Context, subscriber string) error { err := w.ws.UnsubscribeAll(ctx) if err != nil { return err } w.mtx.Lock() - defer w.mtx.Unlock() for _, ch := range w.subscriptions { close(ch) } w.subscriptions = make(map[string]chan<- interface{}) + w.mtx.Unlock() + return nil } // After being reconnected, it is necessary to redo subscription to server // otherwise no data will be automatically received. func (w *WSEvents) redoSubscriptions() { - for query := range w.subscriptions { + for q := range w.subscriptions { // NOTE: no timeout for resubscribing // FIXME: better logging/handling of errors?? - w.ws.Subscribe(context.Background(), query) + w.ws.Subscribe(context.Background(), q) } } @@ -316,34 +309,27 @@ func (w *WSEvents) redoSubscriptions() { func (w *WSEvents) eventListener() { for { select { - case resp := <-w.ws.ResponsesCh: - // res is json.RawMessage + case resp, ok := <-w.ws.ResponsesCh: + if !ok { + return + } if resp.Error != nil { - // FIXME: better logging/handling of errors?? - fmt.Printf("ws err: %+v\n", resp.Error.Error()) + w.Logger.Error("WS error", "err", resp.Error.Error()) continue } result := new(ctypes.ResultEvent) err := json.Unmarshal(resp.Result, result) if err != nil { - // ignore silently (eg. subscribe, unsubscribe and maybe other events) - // TODO: ? + w.Logger.Error("failed to unmarshal response", "err", err) continue } - if ch := w.getSubscription(result.Query); ch != nil { + w.mtx.RLock() + if ch, ok := w.subscriptions[result.Query]; ok { ch <- result.Data } - case <-w.quit: - // send a message so we can wait for the routine to exit - // before cleaning up the w.ws stuff - w.done <- true + w.mtx.RUnlock() + case <-w.Quit: return } } } - -func (w *WSEvents) getSubscription(query string) chan<- interface{} { - w.mtx.RLock() - defer w.mtx.RUnlock() - return w.subscriptions[query] -} diff --git a/rpc/client/interface.go b/rpc/client/interface.go index c38f188ee..063d50e19 100644 --- a/rpc/client/interface.go +++ b/rpc/client/interface.go @@ -20,8 +20,6 @@ implementation. package client import ( - "context" - data "github.com/tendermint/go-wire/data" ctypes "github.com/tendermint/tendermint/rpc/core/types" "github.com/tendermint/tendermint/types" @@ -89,7 +87,5 @@ type NetworkClient interface { // EventsClient is reactive, you can subscribe to any message, given the proper // string. see tendermint/types/events.go type EventsClient interface { - Subscribe(ctx context.Context, query string, out chan<- interface{}) error - Unsubscribe(ctx context.Context, query string) error - UnsubscribeAll(ctx context.Context) error + types.EventBusSubscriber } diff --git a/rpc/client/localclient.go b/rpc/client/localclient.go index 40c249123..18c6759de 100644 --- a/rpc/client/localclient.go +++ b/rpc/client/localclient.go @@ -3,19 +3,12 @@ package client import ( "context" - "github.com/pkg/errors" - data "github.com/tendermint/go-wire/data" nm "github.com/tendermint/tendermint/node" "github.com/tendermint/tendermint/rpc/core" ctypes "github.com/tendermint/tendermint/rpc/core/types" "github.com/tendermint/tendermint/types" - tmquery "github.com/tendermint/tmlibs/pubsub/query" -) - -const ( - // event bus subscriber - subscriber = "rpc-localclient" + tmpubsub "github.com/tendermint/tmlibs/pubsub" ) /* @@ -33,10 +26,7 @@ For real clients, you probably want to use client.HTTP. For more powerful control during testing, you probably want the "client/mock" package. */ type Local struct { - node *nm.Node - *types.EventBus - subscriptions map[string]*tmquery.Query } // NewLocal configures a client that calls the Node directly. @@ -48,9 +38,7 @@ type Local struct { func NewLocal(node *nm.Node) *Local { node.ConfigureRPC() return &Local{ - node: node, - EventBus: node.EventBus(), - subscriptions: make(map[string]*tmquery.Query), + EventBus: node.EventBus(), } } @@ -68,7 +56,7 @@ func (Local) ABCIInfo() (*ctypes.ResultABCIInfo, error) { return core.ABCIInfo() } -func (c Local) ABCIQuery(path string, data data.Bytes) (*ctypes.ResultABCIQuery, error) { +func (c *Local) ABCIQuery(path string, data data.Bytes) (*ctypes.ResultABCIQuery, error) { return c.ABCIQueryWithOptions(path, data, DefaultABCIQueryOptions) } @@ -128,34 +116,14 @@ func (Local) TxSearch(query string, prove bool) ([]*ctypes.ResultTx, error) { return core.TxSearch(query, prove) } -func (c *Local) Subscribe(ctx context.Context, query string, out chan<- interface{}) error { - q, err := tmquery.New(query) - if err != nil { - return errors.Wrap(err, "failed to subscribe") - } - if err = c.EventBus.Subscribe(ctx, subscriber, q, out); err != nil { - return errors.Wrap(err, "failed to subscribe") - } - c.subscriptions[query] = q - return nil +func (c *Local) Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error { + return c.EventBus.Subscribe(ctx, subscriber, query, out) } -func (c *Local) Unsubscribe(ctx context.Context, query string) error { - q, ok := c.subscriptions[query] - if !ok { - return errors.New("subscription not found") - } - if err := c.EventBus.Unsubscribe(ctx, subscriber, q); err != nil { - return errors.Wrap(err, "failed to unsubscribe") - } - delete(c.subscriptions, query) - return nil +func (c *Local) Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error { + return c.EventBus.Unsubscribe(ctx, subscriber, query) } -func (c *Local) UnsubscribeAll(ctx context.Context) error { - if err := c.EventBus.UnsubscribeAll(ctx, subscriber); err != nil { - return errors.Wrap(err, "failed to unsubscribe") - } - c.subscriptions = make(map[string]*tmquery.Query) - return nil +func (c *Local) UnsubscribeAll(ctx context.Context, subscriber string) error { + return c.EventBus.UnsubscribeAll(ctx, subscriber) } diff --git a/rpc/core/events.go b/rpc/core/events.go index 81f1c919a..840b971d8 100644 --- a/rpc/core/events.go +++ b/rpc/core/events.go @@ -44,20 +44,19 @@ func Subscribe(wsCtx rpctypes.WSRPCContext, query string) (*ctypes.ResultSubscri q, err := tmquery.New(query) if err != nil { - return nil, errors.Wrap(err, "failed to parse a query") - } - - err = wsCtx.AddSubscription(query, q) - if err != nil { - return nil, errors.Wrap(err, "failed to add subscription") + return nil, errors.Wrap(err, "failed to parse query") } ctx, cancel := context.WithTimeout(context.Background(), subscribeTimeout) defer cancel() ch := make(chan interface{}) - err = eventBus.Subscribe(ctx, addr, q, ch) + es := wsCtx.GetEventSubscriber() + if es == nil { + es = eventBus + } + err = eventBusFor(wsCtx).Subscribe(ctx, addr, q, ch) if err != nil { - return nil, errors.Wrap(err, "failed to subscribe") + return nil, err } go func() { @@ -100,18 +99,31 @@ func Subscribe(wsCtx rpctypes.WSRPCContext, query string) (*ctypes.ResultSubscri func Unsubscribe(wsCtx rpctypes.WSRPCContext, query string) (*ctypes.ResultUnsubscribe, error) { addr := wsCtx.GetRemoteAddr() logger.Info("Unsubscribe from query", "remote", addr, "query", query) - q, ok := wsCtx.DeleteSubscription(query) - if !ok { - return nil, errors.New("subscription not found") + q, err := tmquery.New(query) + if err != nil { + return nil, errors.Wrap(err, "failed to parse query") + } + err = eventBusFor(wsCtx).Unsubscribe(context.Background(), addr, q) + if err != nil { + return nil, err } - eventBus.Unsubscribe(context.Background(), addr, q.(*tmquery.Query)) return &ctypes.ResultUnsubscribe{}, nil } func UnsubscribeAll(wsCtx rpctypes.WSRPCContext) (*ctypes.ResultUnsubscribe, error) { addr := wsCtx.GetRemoteAddr() logger.Info("Unsubscribe from all", "remote", addr) - eventBus.UnsubscribeAll(context.Background(), addr) - wsCtx.DeleteAllSubscriptions() + err := eventBusFor(wsCtx).UnsubscribeAll(context.Background(), addr) + if err != nil { + return nil, err + } return &ctypes.ResultUnsubscribe{}, nil } + +func eventBusFor(wsCtx rpctypes.WSRPCContext) tmtypes.EventBusSubscriber { + es := wsCtx.GetEventSubscriber() + if es == nil { + es = eventBus + } + return es +} diff --git a/rpc/lib/server/handlers.go b/rpc/lib/server/handlers.go index c81821690..1e14ea9a0 100644 --- a/rpc/lib/server/handlers.go +++ b/rpc/lib/server/handlers.go @@ -2,6 +2,7 @@ package rpcserver import ( "bytes" + "context" "encoding/hex" "encoding/json" "fmt" @@ -366,8 +367,6 @@ type wsConnection struct { funcMap map[string]*RPCFunc - subscriptions map[string]interface{} - // write channel capacity writeChanCapacity int @@ -380,8 +379,8 @@ type wsConnection struct { // Send pings to server with this period. Must be less than readWait, but greater than zero. pingPeriod time.Duration - // called before stopping the connection. - onDisconnect func(remoteAddr string) + // object that is used to subscribe / unsubscribe from events + eventSub types.EventSubscriber } // NewWSConnection wraps websocket.Conn. @@ -395,7 +394,6 @@ func NewWSConnection(baseConn *websocket.Conn, funcMap map[string]*RPCFunc, opti remoteAddr: baseConn.RemoteAddr().String(), baseConn: baseConn, funcMap: funcMap, - subscriptions: make(map[string]interface{}), writeWait: defaultWSWriteWait, writeChanCapacity: defaultWSWriteChanCapacity, readWait: defaultWSReadWait, @@ -408,6 +406,15 @@ func NewWSConnection(baseConn *websocket.Conn, funcMap map[string]*RPCFunc, opti return wsc } +// EventSubscriber sets object that is used to subscribe / unsubscribe from +// events - not Goroutine-safe. If none given, default node's eventBus will be +// used. +func EventSubscriber(eventSub types.EventSubscriber) func(*wsConnection) { + return func(wsc *wsConnection) { + wsc.eventSub = eventSub + } +} + // WriteWait sets the amount of time to wait before a websocket write times out. // It should only be used in the constructor - not Goroutine-safe. func WriteWait(writeWait time.Duration) func(*wsConnection) { @@ -440,14 +447,6 @@ func PingPeriod(pingPeriod time.Duration) func(*wsConnection) { } } -// OnDisconnect called before stopping the connection. -// It should only be used in the constructor - not Goroutine-safe. -func OnDisconnect(cb func(remoteAddr string)) func(*wsConnection) { - return func(wsc *wsConnection) { - wsc.onDisconnect = cb - } -} - // OnStart implements cmn.Service by starting the read and write routines. It // blocks until the connection closes. func (wsc *wsConnection) OnStart() error { @@ -461,12 +460,12 @@ func (wsc *wsConnection) OnStart() error { return nil } -// OnStop implements cmn.Service by calling OnDisconnect callback. +// OnStop implements cmn.Service by unsubscribing remoteAddr from all subscriptions. func (wsc *wsConnection) OnStop() { // Both read and write loops close the websocket connection when they exit their loops. // The writeChan is never closed, to allow WriteRPCResponse() to fail. - if wsc.onDisconnect != nil { - wsc.onDisconnect(wsc.remoteAddr) + if wsc.eventSub != nil { + wsc.eventSub.UnsubscribeAll(context.TODO(), wsc.remoteAddr) } } @@ -476,6 +475,11 @@ func (wsc *wsConnection) GetRemoteAddr() string { return wsc.remoteAddr } +// GetEventSubscriber implements WSRPCConnection by returning event subscriber. +func (wsc *wsConnection) GetEventSubscriber() types.EventSubscriber { + return wsc.eventSub +} + // WriteRPCResponse pushes a response to the writeChan, and blocks until it is accepted. // It implements WSRPCConnection. It is Goroutine-safe. func (wsc *wsConnection) WriteRPCResponse(resp types.RPCResponse) { @@ -499,28 +503,6 @@ func (wsc *wsConnection) TryWriteRPCResponse(resp types.RPCResponse) bool { } } -func (wsc *wsConnection) AddSubscription(query string, data interface{}) error { - if _, ok := wsc.subscriptions[query]; ok { - return errors.New("Already subscribed") - } - - wsc.subscriptions[query] = data - return nil -} - -func (wsc *wsConnection) DeleteSubscription(query string) (interface{}, bool) { - data, ok := wsc.subscriptions[query] - if ok { - delete(wsc.subscriptions, query) - return data, true - } - return nil, false -} - -func (wsc *wsConnection) DeleteAllSubscriptions() { - wsc.subscriptions = make(map[string]interface{}) -} - // Read from the socket and subscribe to or unsubscribe from events func (wsc *wsConnection) readRoutine() { defer func() { diff --git a/rpc/lib/types/types.go b/rpc/lib/types/types.go index bac7c2409..37d451457 100644 --- a/rpc/lib/types/types.go +++ b/rpc/lib/types/types.go @@ -1,11 +1,13 @@ package rpctypes import ( + "context" "encoding/json" "fmt" "strings" "github.com/pkg/errors" + tmpubsub "github.com/tendermint/tmlibs/pubsub" ) //---------------------------------------- @@ -135,10 +137,14 @@ type WSRPCConnection interface { GetRemoteAddr() string WriteRPCResponse(resp RPCResponse) TryWriteRPCResponse(resp RPCResponse) bool + GetEventSubscriber() EventSubscriber +} - AddSubscription(string, interface{}) error - DeleteSubscription(string) (interface{}, bool) - DeleteAllSubscriptions() +// EventSubscriber mirros tendermint/tendermint/types.EventBusSubscriber +type EventSubscriber interface { + Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error + Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error + UnsubscribeAll(ctx context.Context, subscriber string) error } // websocket-only RPCFuncs take this as the first parameter. diff --git a/types/event_bus.go b/types/event_bus.go index 6cee1d82b..6b6069b90 100644 --- a/types/event_bus.go +++ b/types/event_bus.go @@ -12,6 +12,12 @@ import ( const defaultCapacity = 1000 +type EventBusSubscriber interface { + Subscribe(ctx context.Context, subscriber string, query tmpubsub.Query, out chan<- interface{}) error + Unsubscribe(ctx context.Context, subscriber string, query tmpubsub.Query) error + UnsubscribeAll(ctx context.Context, subscriber string) error +} + // EventBus is a common bus for all events going through the system. All calls // are proxied to underlying pubsub server. All events must be published using // EventBus to ensure correct data types. diff --git a/types/events.go b/types/events.go index 08ebf46da..5c41c6df6 100644 --- a/types/events.go +++ b/types/events.go @@ -146,32 +146,32 @@ const ( ) var ( - EventQueryBond = queryForEvent(EventBond) - EventQueryUnbond = queryForEvent(EventUnbond) - EventQueryRebond = queryForEvent(EventRebond) - EventQueryDupeout = queryForEvent(EventDupeout) - EventQueryFork = queryForEvent(EventFork) - EventQueryNewBlock = queryForEvent(EventNewBlock) - EventQueryNewBlockHeader = queryForEvent(EventNewBlockHeader) - EventQueryNewRound = queryForEvent(EventNewRound) - EventQueryNewRoundStep = queryForEvent(EventNewRoundStep) - EventQueryTimeoutPropose = queryForEvent(EventTimeoutPropose) - EventQueryCompleteProposal = queryForEvent(EventCompleteProposal) - EventQueryPolka = queryForEvent(EventPolka) - EventQueryUnlock = queryForEvent(EventUnlock) - EventQueryLock = queryForEvent(EventLock) - EventQueryRelock = queryForEvent(EventRelock) - EventQueryTimeoutWait = queryForEvent(EventTimeoutWait) - EventQueryVote = queryForEvent(EventVote) - EventQueryProposalHeartbeat = queryForEvent(EventProposalHeartbeat) - EventQueryTx = queryForEvent(EventTx) + EventQueryBond = QueryForEvent(EventBond) + EventQueryUnbond = QueryForEvent(EventUnbond) + EventQueryRebond = QueryForEvent(EventRebond) + EventQueryDupeout = QueryForEvent(EventDupeout) + EventQueryFork = QueryForEvent(EventFork) + EventQueryNewBlock = QueryForEvent(EventNewBlock) + EventQueryNewBlockHeader = QueryForEvent(EventNewBlockHeader) + EventQueryNewRound = QueryForEvent(EventNewRound) + EventQueryNewRoundStep = QueryForEvent(EventNewRoundStep) + EventQueryTimeoutPropose = QueryForEvent(EventTimeoutPropose) + EventQueryCompleteProposal = QueryForEvent(EventCompleteProposal) + EventQueryPolka = QueryForEvent(EventPolka) + EventQueryUnlock = QueryForEvent(EventUnlock) + EventQueryLock = QueryForEvent(EventLock) + EventQueryRelock = QueryForEvent(EventRelock) + EventQueryTimeoutWait = QueryForEvent(EventTimeoutWait) + EventQueryVote = QueryForEvent(EventVote) + EventQueryProposalHeartbeat = QueryForEvent(EventProposalHeartbeat) + EventQueryTx = QueryForEvent(EventTx) ) func EventQueryTxFor(tx Tx) tmpubsub.Query { return tmquery.MustParse(fmt.Sprintf("%s='%s' AND %s='%X'", EventTypeKey, EventTx, TxHashKey, tx.Hash())) } -func queryForEvent(eventType string) tmpubsub.Query { +func QueryForEvent(eventType string) tmpubsub.Query { return tmquery.MustParse(fmt.Sprintf("%s='%s'", EventTypeKey, eventType)) } From 90cdffa06761a9330aa4397caa3ca165906f74b8 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Sun, 10 Dec 2017 11:29:36 -0600 Subject: [PATCH 20/34] fixes after my own review (Refs #945) --- rpc/client/httpclient.go | 2 ++ rpc/core/events.go | 4 ---- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/rpc/client/httpclient.go b/rpc/client/httpclient.go index fff274be6..2ecfa7958 100644 --- a/rpc/client/httpclient.go +++ b/rpc/client/httpclient.go @@ -323,6 +323,8 @@ func (w *WSEvents) eventListener() { w.Logger.Error("failed to unmarshal response", "err", err) continue } + // NOTE: writing also happens inside mutex so we can't close a channel in + // Unsubscribe/UnsubscribeAll. w.mtx.RLock() if ch, ok := w.subscriptions[result.Query]; ok { ch <- result.Data diff --git a/rpc/core/events.go b/rpc/core/events.go index 840b971d8..538134b0f 100644 --- a/rpc/core/events.go +++ b/rpc/core/events.go @@ -50,10 +50,6 @@ func Subscribe(wsCtx rpctypes.WSRPCContext, query string) (*ctypes.ResultSubscri ctx, cancel := context.WithTimeout(context.Background(), subscribeTimeout) defer cancel() ch := make(chan interface{}) - es := wsCtx.GetEventSubscriber() - if es == nil { - es = eventBus - } err = eventBusFor(wsCtx).Subscribe(ctx, addr, q, ch) if err != nil { return nil, err From d819d5d3244fe91c7616577cd00855db43894d29 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Sun, 10 Dec 2017 11:34:08 -0600 Subject: [PATCH 21/34] update changelog [ci skip] --- CHANGELOG.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 76a34d5c3..5e698a2a1 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -27,6 +27,14 @@ BUG FIXES: - Graceful handling/recovery for apps that have non-determinism or fail to halt - Graceful handling/recovery for violations of safety, or liveness +## 0.14.0 (TBD) + +BREAKING CHANGES: +- rpc/client: changed Subscribe/Unsubscribe/UnsubscribeAll funcs signatures to be identical to event bus. + +IMPROVEMENTS: +- rpc/client: can act as event bus subscriber (See https://github.com/tendermint/tendermint/issues/945). + ## 0.13.0 (December 6, 2017) BREAKING CHANGES: From 101680d603315918fd975e4e906e4e43c67465c3 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Sun, 10 Dec 2017 11:35:22 -0600 Subject: [PATCH 22/34] update changelog [ci skip] --- CHANGELOG.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 76a34d5c3..49b18e720 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -27,6 +27,11 @@ BUG FIXES: - Graceful handling/recovery for apps that have non-determinism or fail to halt - Graceful handling/recovery for violations of safety, or liveness +## 0.14.0 (TBD) + +BREAKING CHANGES: +- consensus/wal: removed separator + ## 0.13.0 (December 6, 2017) BREAKING CHANGES: From 12c5a57415f5e8dcc7b09422d66ba86a70668efa Mon Sep 17 00:00:00 2001 From: Zach Date: Sun, 10 Dec 2017 17:44:22 +0000 Subject: [PATCH 23/34] determinisitic linter (#902) * linter: address gosimple lints * linter: make deterministic & a rebase fix * lint/rpc: fix a gosimple lint * run linter in CI * fix rebase mistake * fix makefile * ugh * revert Makefile * add metalinter to CI * try this * linter: last little fix * need glide * better * okayy circle, have it your way * lints: gosimple * pr comments --- Makefile | 14 +++++++------- circle.yml | 1 + node/node.go | 7 +------ p2p/trust/store.go | 4 ++-- rpc/lib/client/ws_client.go | 13 +++++++------ state/txindex/kv/kv.go | 2 +- 6 files changed, 19 insertions(+), 22 deletions(-) diff --git a/Makefile b/Makefile index 4c835a8f5..b94cfd04c 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ GOTOOLS = \ github.com/mitchellh/gox \ github.com/tcnksm/ghr \ - github.com/alecthomas/gometalinter + gopkg.in/alecthomas/gometalinter.v2 PACKAGES=$(shell go list ./... | grep -v '/vendor/') BUILD_TAGS?=tendermint @@ -74,7 +74,7 @@ get_vendor_deps: @hash glide 2>/dev/null || go get github.com/Masterminds/glide @rm -rf vendor/ @echo "--> Running glide install" - @glide install + $(GOPATH)/bin/glide install update_tools: @echo "--> Updating tools" @@ -83,21 +83,22 @@ update_tools: tools: @echo "--> Installing tools" @go get $(GOTOOLS) - @gometalinter --install + $(GOPATH)/bin/gometalinter.v2 --install ### Formatting, linting, and vetting metalinter: - @gometalinter --vendor --deadline=600s --enable-all --disable=lll ./... + $(GOPATH)/bin/gometalinter.v2 --vendor --deadline=600s --enable-all --disable=lll ./... metalinter_test: - @gometalinter --vendor --deadline=600s --disable-all \ + $(GOPATH)/bin/gometalinter.v2 --vendor --deadline=600s --disable-all \ --enable=deadcode \ + --enable=gosimple \ --enable=misspell \ --enable=safesql \ ./... - # --enable=gas \ + #--enable=gas \ #--enable=maligned \ #--enable=dupl \ #--enable=errcheck \ @@ -105,7 +106,6 @@ metalinter_test: #--enable=gocyclo \ #--enable=goimports \ #--enable=golint \ <== comments on anything exported - #--enable=gosimple \ #--enable=gotype \ #--enable=ineffassign \ #--enable=interfacer \ diff --git a/circle.yml b/circle.yml index 50ffbd01b..e606097cf 100644 --- a/circle.yml +++ b/circle.yml @@ -24,6 +24,7 @@ dependencies: test: override: + - cd "$PROJECT_PATH" && make tools && make get_vendor_deps && make metalinter_test - cd "$PROJECT_PATH" && set -o pipefail && make test_integrations 2>&1 | tee test_integrations.log: timeout: 1800 post: diff --git a/node/node.go b/node/node.go index eb5509717..2f200abc5 100644 --- a/node/node.go +++ b/node/node.go @@ -373,12 +373,7 @@ func (n *Node) OnStart() error { } // start tx indexer - err = n.indexerService.Start() - if err != nil { - return err - } - - return nil + return n.indexerService.Start() } // OnStop stops the Node. It implements cmn.Service. diff --git a/p2p/trust/store.go b/p2p/trust/store.go index e86aecd2c..fd84ac963 100644 --- a/p2p/trust/store.go +++ b/p2p/trust/store.go @@ -138,7 +138,7 @@ func (tms *TrustMetricStore) loadFromDB() bool { return false } - peers := make(map[string]MetricHistoryJSON, 0) + peers := make(map[string]MetricHistoryJSON) err := json.Unmarshal(bytes, &peers) if err != nil { cmn.PanicCrisis(cmn.Fmt("Could not unmarshal Trust Metric Store DB data: %v", err)) @@ -160,7 +160,7 @@ func (tms *TrustMetricStore) loadFromDB() bool { func (tms *TrustMetricStore) saveToDB() { tms.Logger.Debug("Saving TrustHistory to DB", "size", tms.size()) - peers := make(map[string]MetricHistoryJSON, 0) + peers := make(map[string]MetricHistoryJSON) for key, tm := range tms.peerMetrics { // Add an entry for the peer identified by key diff --git a/rpc/lib/client/ws_client.go b/rpc/lib/client/ws_client.go index e4ed442e4..79e3f63f4 100644 --- a/rpc/lib/client/ws_client.go +++ b/rpc/lib/client/ws_client.go @@ -169,13 +169,14 @@ func (c *WSClient) OnStop() {} // Stop overrides cmn.Service#Stop. There is no other way to wait until Quit // channel is closed. func (c *WSClient) Stop() error { - err := c.BaseService.Stop() - if err == nil { - // only close user-facing channels when we can't write to them - c.wg.Wait() - close(c.ResponsesCh) + if err := c.BaseService.Stop(); err != nil { + return err } - return err + // only close user-facing channels when we can't write to them + c.wg.Wait() + close(c.ResponsesCh) + + return nil } // IsReconnecting returns true if the client is reconnecting right now. diff --git a/state/txindex/kv/kv.go b/state/txindex/kv/kv.go index d40fe80fe..b70f3699f 100644 --- a/state/txindex/kv/kv.go +++ b/state/txindex/kv/kv.go @@ -342,7 +342,7 @@ func startKey(c query.Condition, height int64) []byte { func startKeyForRange(r queryRange, height int64) []byte { if r.lowerBound == nil { - return []byte(fmt.Sprintf("%s", r.key)) + return []byte(r.key) } var lowerBound interface{} From 7563870d11593c5c56cef3ab151318f878b73340 Mon Sep 17 00:00:00 2001 From: caffix Date: Sun, 26 Nov 2017 17:27:29 -0500 Subject: [PATCH 24/34] added the trust metric usage guide --- .../adr-007-trust-metric-usage.md | 56 +++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 docs/architecture/adr-007-trust-metric-usage.md diff --git a/docs/architecture/adr-007-trust-metric-usage.md b/docs/architecture/adr-007-trust-metric-usage.md new file mode 100644 index 000000000..81a9dc2f0 --- /dev/null +++ b/docs/architecture/adr-007-trust-metric-usage.md @@ -0,0 +1,56 @@ +# ADR 007: Trust Metric Usage Guide + +## Context + +The Tendermint project developers would like to improve Tendermint security and reliability by keeping track of the quality that peers have demonstrated. This way, undesirable outcomes from peers will not immediately result in them being dropped from the network (potentially causing drastic changes). Instead, peers behavior can be monitored with appropriate metrics and be removed from the network once Tendermint is certain the peer is a threat. For example, when the PEXReactor makes a request for peers network addresses from an already known peer, and the returned network addresses are unreachable, this undesirable behavior should be tracked. Returning a few bad network addresses probably shouldn’t cause a peer to be dropped, while excessive amounts of this behavior does qualify the peer for removal. The originally proposed approach and design document for the trust metric can be found in the [ADR 006](adr-006-trust-metric.md) document. + +The trust metric implementation allows a developer to obtain a peer's trust metric from a trust metric store, and track good and bad events relevant to a peer's behavior, and at any time, the peer's metric can be queried for a current trust value. The current trust value is calculated with a formula that utilizes current behavior, previous behavior, and change between the two. Current behavior is calculated as the percentage of good behavior within a time interval. The time interval is short; probably set between 30 seconds and 5 minutes. On the other hand, the historic data can estimate a peer's behavior over days worth of tracking. At the end of a time interval, the current behavior becomes part of the historic data, and a new time interval begins with the good and bad counters reset to zero. + +If a peer is inactive since the beginning of a time interval, the behavior for that time interval is considered to be untainted. Put another way, the trust value for a peer degrades from a perfect score as bad events are tracked. + +Some useful information about the inner workings of the trust metric: +- When a trust metric is first instantiated, a timer (ticker) periodically fires in order to handle transitions between trust metric time intervals +- If a peer become disconnected from a node, the timer should be paused, since the node is no longer having direct experiences with that peer +- The ability to pause the metric is supported with the store **PeerDisconnected** method and the metric **Pause** method +- After a pause, if a good or bad event method is called on a metric, it automatically becomes unpaused and begins a new time interval. + +## Decision + +The trust metric capability is now available, yet, it still leaves the question of how should it be applied throughout Tendermint in order to properly track the quality of peers? + +### Proposed Process + +Peers are managed using an address book and a trust metric: + +- The address book keeps a record of peers and provides selection methods +- The trust metric tracks the quality of the peers + +When we need more peers, we pick them randomly from the address book's selection method. When we're asked for peers, we provide a random selection with no bias: + +- The address book's selection method will perform peer ranking based on trust metric scores +- If we need to make room for a new peer, we remove the peer with the lowest trust metric score + +Peer quality is tracked in the connection and across the reactors, and behaviors are defined as one of the following: +- Fatal - something outright malicious that causes us to disconnect the peer and remember it +- Bad - Any kind of timeout, messages that don't unmarshal, fail other validity checks, or messages we didn't ask for or aren't expecting (usually worth one bad event) +- Neutral - Unknown channels/message types/version upgrades (no good or bad events recorded) +- Correct - Normal correct behavior (worth one good event) +- Good - some random majority of peers per reactor sending us useful messages (worth more than one good event). + +## Status + +Proposed. + +## Consequences + +### Positive + +- Bringing the address book and trust metric store together will cause the network to be built in a way that encourages greater security and reliability. + +### Negative + +- TBD + +### Neutral + +- Keep in mind that, good events need to be recorded just as bad events do using this implementation. From 4e08ee1833f3ff85d12d9efbc516103978aea4df Mon Sep 17 00:00:00 2001 From: caffix Date: Tue, 28 Nov 2017 14:48:14 -0500 Subject: [PATCH 25/34] made clarifications based on odeke-em's PR comments --- docs/architecture/adr-007-trust-metric-usage.md | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/docs/architecture/adr-007-trust-metric-usage.md b/docs/architecture/adr-007-trust-metric-usage.md index 81a9dc2f0..4db0456c4 100644 --- a/docs/architecture/adr-007-trust-metric-usage.md +++ b/docs/architecture/adr-007-trust-metric-usage.md @@ -2,15 +2,18 @@ ## Context -The Tendermint project developers would like to improve Tendermint security and reliability by keeping track of the quality that peers have demonstrated. This way, undesirable outcomes from peers will not immediately result in them being dropped from the network (potentially causing drastic changes). Instead, peers behavior can be monitored with appropriate metrics and be removed from the network once Tendermint is certain the peer is a threat. For example, when the PEXReactor makes a request for peers network addresses from an already known peer, and the returned network addresses are unreachable, this undesirable behavior should be tracked. Returning a few bad network addresses probably shouldn’t cause a peer to be dropped, while excessive amounts of this behavior does qualify the peer for removal. The originally proposed approach and design document for the trust metric can be found in the [ADR 006](adr-006-trust-metric.md) document. +The Tendermint project developers would like to improve Tendermint security and reliability by keeping track of the quality that peers have demonstrated. This way, undesirable outcomes from peers will not immediately result in them being dropped from the network (potentially causing drastic changes). Instead, a peer's behavior can be monitored with appropriate metrics and can be removed from the network once Tendermint is certain the peer is a threat. For example, when the PEXReactor makes a request for peers network addresses from an already known peer, and the returned network addresses are unreachable, this undesirable behavior should be tracked. Returning a few bad network addresses probably shouldn’t cause a peer to be dropped, while excessive amounts of this behavior does qualify the peer for removal. The originally proposed approach and design document for the trust metric can be found in the [ADR 006](adr-006-trust-metric.md) document. The trust metric implementation allows a developer to obtain a peer's trust metric from a trust metric store, and track good and bad events relevant to a peer's behavior, and at any time, the peer's metric can be queried for a current trust value. The current trust value is calculated with a formula that utilizes current behavior, previous behavior, and change between the two. Current behavior is calculated as the percentage of good behavior within a time interval. The time interval is short; probably set between 30 seconds and 5 minutes. On the other hand, the historic data can estimate a peer's behavior over days worth of tracking. At the end of a time interval, the current behavior becomes part of the historic data, and a new time interval begins with the good and bad counters reset to zero. -If a peer is inactive since the beginning of a time interval, the behavior for that time interval is considered to be untainted. Put another way, the trust value for a peer degrades from a perfect score as bad events are tracked. +These are some important things to keep in mind regarding how the trust metrics handle time intervals and scoring: +- Each new time interval begins with a perfect score +- Bad events quickly bring the score down and good events cause the score to slowly rise +- When the time interval is over, the percentage of good events becomes historic data. Some useful information about the inner workings of the trust metric: - When a trust metric is first instantiated, a timer (ticker) periodically fires in order to handle transitions between trust metric time intervals -- If a peer become disconnected from a node, the timer should be paused, since the node is no longer having direct experiences with that peer +- If a peer is disconnected from a node, the timer should be paused, since the node is no longer connected to that peer - The ability to pause the metric is supported with the store **PeerDisconnected** method and the metric **Pause** method - After a pause, if a good or bad event method is called on a metric, it automatically becomes unpaused and begins a new time interval. From a37c1143ca15da7da821cfd920a371f2d71be25b Mon Sep 17 00:00:00 2001 From: Ethan Buchman Date: Sun, 10 Dec 2017 19:00:44 -0500 Subject: [PATCH 26/34] adr: update 007 trust metric usage --- .../adr-007-trust-metric-usage.md | 58 ++++++++++++++++--- p2p/pex_reactor.go | 3 +- 2 files changed, 53 insertions(+), 8 deletions(-) diff --git a/docs/architecture/adr-007-trust-metric-usage.md b/docs/architecture/adr-007-trust-metric-usage.md index 4db0456c4..4d833a69f 100644 --- a/docs/architecture/adr-007-trust-metric-usage.md +++ b/docs/architecture/adr-007-trust-metric-usage.md @@ -2,7 +2,17 @@ ## Context -The Tendermint project developers would like to improve Tendermint security and reliability by keeping track of the quality that peers have demonstrated. This way, undesirable outcomes from peers will not immediately result in them being dropped from the network (potentially causing drastic changes). Instead, a peer's behavior can be monitored with appropriate metrics and can be removed from the network once Tendermint is certain the peer is a threat. For example, when the PEXReactor makes a request for peers network addresses from an already known peer, and the returned network addresses are unreachable, this undesirable behavior should be tracked. Returning a few bad network addresses probably shouldn’t cause a peer to be dropped, while excessive amounts of this behavior does qualify the peer for removal. The originally proposed approach and design document for the trust metric can be found in the [ADR 006](adr-006-trust-metric.md) document. +Tendermint is required to monitor peer quality in order to inform its peer dialing and peer exchange strategies. + +When a node first connects to the network, it is important that it can quickly find good peers. +Thus, while a node has fewer connections, it should prioritize connecting to higher quality peers. +As the node becomes well connected to the rest of the network, it can dial lesser known or lesser +quality peers and help assess their quality. Similarly, when queried for peers, a node should make +sure they dont return low quality peers. + +Peer quality can be tracked using a trust metric that flags certain behaviours as good or bad. When enough +bad behaviour accumulates, we can mark the peer as bad and disconnect. +For example, when the PEXReactor makes a request for peers network addresses from an already known peer, and the returned network addresses are unreachable, this undesirable behavior should be tracked. Returning a few bad network addresses probably shouldn’t cause a peer to be dropped, while excessive amounts of this behavior does qualify the peer for removal. The originally proposed approach and design document for the trust metric can be found in the [ADR 006](adr-006-trust-metric.md) document. The trust metric implementation allows a developer to obtain a peer's trust metric from a trust metric store, and track good and bad events relevant to a peer's behavior, and at any time, the peer's metric can be queried for a current trust value. The current trust value is calculated with a formula that utilizes current behavior, previous behavior, and change between the two. Current behavior is calculated as the percentage of good behavior within a time interval. The time interval is short; probably set between 30 seconds and 5 minutes. On the other hand, the historic data can estimate a peer's behavior over days worth of tracking. At the end of a time interval, the current behavior becomes part of the historic data, and a new time interval begins with the good and bad counters reset to zero. @@ -19,7 +29,7 @@ Some useful information about the inner workings of the trust metric: ## Decision -The trust metric capability is now available, yet, it still leaves the question of how should it be applied throughout Tendermint in order to properly track the quality of peers? +The trust metric capability is now available, yet, it still leaves the question of how should it be applied throughout Tendermint in order to properly track the quality of peers? ### Proposed Process @@ -28,18 +38,52 @@ Peers are managed using an address book and a trust metric: - The address book keeps a record of peers and provides selection methods - The trust metric tracks the quality of the peers -When we need more peers, we pick them randomly from the address book's selection method. When we're asked for peers, we provide a random selection with no bias: +#### Presence in Address Book -- The address book's selection method will perform peer ranking based on trust metric scores -- If we need to make room for a new peer, we remove the peer with the lowest trust metric score +Outbound peers are added to the address book before they are dialed, +and inbound peers are added once the peer connection is set up. +Peers are also added to the address book when they are received in response to +a pexRequestMessage. -Peer quality is tracked in the connection and across the reactors, and behaviors are defined as one of the following: -- Fatal - something outright malicious that causes us to disconnect the peer and remember it +While a node has less than `needAddressThreshold`, it will periodically request more, +via pexRequestMessage, from randomly selected peers and from newly dialed outbound peers. + +When a new address is added to an address book that has more than `0.5*needAddressThreshold` addresses, +then with some low probability, a randomly chosen low quality peer is removed. + +#### Outbound Peers + +Peers attempt to maintain a minimum number of outbound connections by +repeatedly querying the address book for peers to connect to. +While a node has few to no outbound connections, the address book is biased to return +higher quality peers. As the node increases the number of outbound connections, +the address book is biased to return less-vetted or lower-quality peers. + +#### Inbound Peers + +Peers also maintain a maximum number of total connections, MaxNumPeers. +If a peer has MaxNumPeers, new incoming connections will be accepted with low probability. +When such a new connection is accepted, the peer disconnects from a probabilistically chosen low ranking peer +so it does not exceed MaxNumPeers. + +#### Peer Exchange + +When a peer receives a pexRequestMessage, it returns a random sample of high quality peers from the address book. Peers with no score or low score should not be inclided in a response to pexRequestMessage. + +#### Peer Quality + +Peer quality is tracked in the connection and across the reactors by storing the TrustMetric in the peer's +thread safe Data store. + +Peer behaviour is then defined as one of the following: +- Fatal - something outright malicious that causes us to disconnect the peer and ban it from the address book for some amount of time - Bad - Any kind of timeout, messages that don't unmarshal, fail other validity checks, or messages we didn't ask for or aren't expecting (usually worth one bad event) - Neutral - Unknown channels/message types/version upgrades (no good or bad events recorded) - Correct - Normal correct behavior (worth one good event) - Good - some random majority of peers per reactor sending us useful messages (worth more than one good event). +Note that Fatal behaviour causes us to remove the peer, and neutral behaviour does not affect the score. + ## Status Proposed. diff --git a/p2p/pex_reactor.go b/p2p/pex_reactor.go index 6e49f6d06..960c8c641 100644 --- a/p2p/pex_reactor.go +++ b/p2p/pex_reactor.go @@ -20,7 +20,7 @@ const ( minNumOutboundPeers = 10 maxPexMessageSize = 1048576 // 1MB - // maximum messages one peer can send to us during `msgCountByPeerFlushInterval` + // maximum pex messages one peer can send to us during `msgCountByPeerFlushInterval` defaultMaxMsgCountByPeer = 1000 msgCountByPeerFlushInterval = 1 * time.Hour ) @@ -247,6 +247,7 @@ func (r *PEXReactor) ensurePeers() { // bias to prefer more vetted peers when we have fewer connections. // not perfect, but somewhate ensures that we prioritize connecting to more-vetted + // NOTE: range here is [10, 90]. Too high ? newBias := cmn.MinInt(numOutPeers, 8)*10 + 10 toDial := make(map[string]*NetAddress) From 10fcefe346a23fc1cd93ef2f932b5406807ad45a Mon Sep 17 00:00:00 2001 From: Ethan Buchman Date: Sun, 10 Dec 2017 20:07:38 -0500 Subject: [PATCH 27/34] appveyor: use make --- appveyor.yml | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/appveyor.yml b/appveyor.yml index 60ca0b312..1ddf8fdd2 100644 --- a/appveyor.yml +++ b/appveyor.yml @@ -7,8 +7,7 @@ clone_folder: c:\go\path\src\github.com\tendermint\tendermint before_build: - cmd: set GOPATH=%GOROOT%\path - cmd: set PATH=%GOPATH%\bin;%PATH% -- cmd: go get github.com/Masterminds/glide -- cmd: glide install +- cmd: make get_vendor_deps build_script: -- cmd: go test ./... +- cmd: make test test: off From 5511bd8e85d7a817a836d1fe40d432f6342bed1d Mon Sep 17 00:00:00 2001 From: Ethan Buchman Date: Mon, 11 Dec 2017 13:41:09 -0500 Subject: [PATCH 28/34] p2p: exponential backoff on reconnect. closes #939 --- p2p/switch.go | 107 ++++++++++++++++++++++++++++++++------------- p2p/switch_test.go | 4 +- 2 files changed, 78 insertions(+), 33 deletions(-) diff --git a/p2p/switch.go b/p2p/switch.go index 4fdaec6ec..33ad28ea7 100644 --- a/p2p/switch.go +++ b/p2p/switch.go @@ -2,6 +2,7 @@ package p2p import ( "fmt" + "math" "math/rand" "net" "time" @@ -14,8 +15,19 @@ import ( ) const ( - reconnectAttempts = 30 - reconnectInterval = 3 * time.Second + // wait a random amount of time from this interval + // before dialing seeds or reconnecting to help prevent DoS + dialRandomizerIntervalMilliseconds = 3000 + + // repeatedly try to reconnect for a few minutes + // ie. 5 * 20 = 100s + reconnectAttempts = 20 + reconnectInterval = 5 * time.Second + + // then move into exponential backoff mode for ~1day + // ie. 3**10 = 16hrs + reconnectBackOffAttempts = 10 + reconnectBackOffBaseSeconds = 3 ) type Reactor interface { @@ -74,6 +86,8 @@ type Switch struct { filterConnByAddr func(net.Addr) error filterConnByPubKey func(crypto.PubKeyEd25519) error + + rng *rand.Rand // seed for randomizing dial times and orders } var ( @@ -92,6 +106,10 @@ func NewSwitch(config *cfg.P2PConfig) *Switch { nodeInfo: nil, } + // Ensure we have a completely undeterministic PRNG. cmd.RandInt64() draws + // from a seed that's initialized with OS entropy on process start. + sw.rng = rand.New(rand.NewSource(cmn.RandInt64())) + // TODO: collapse the peerConfig into the config ? sw.peerConfig.MConfig.flushThrottle = time.Duration(config.FlushThrottleTimeout) * time.Millisecond sw.peerConfig.MConfig.SendRate = config.SendRate @@ -317,15 +335,11 @@ func (sw *Switch) DialSeeds(addrBook *AddrBook, seeds []string) error { addrBook.Save() } - // Ensure we have a completely undeterministic PRNG. cmd.RandInt64() draws - // from a seed that's initialized with OS entropy on process start. - rng := rand.New(rand.NewSource(cmn.RandInt64())) - // permute the list, dial them in random order. - perm := rng.Perm(len(netAddrs)) + perm := sw.rng.Perm(len(netAddrs)) for i := 0; i < len(perm); i++ { go func(i int) { - time.Sleep(time.Duration(rng.Int63n(3000)) * time.Millisecond) + sw.randomSleep(0) j := perm[i] sw.dialSeed(netAddrs[j]) }(i) @@ -333,6 +347,12 @@ func (sw *Switch) DialSeeds(addrBook *AddrBook, seeds []string) error { return nil } +// sleep for interval plus some random amount of ms on [0, dialRandomizerIntervalMilliseconds] +func (sw *Switch) randomSleep(interval time.Duration) { + r := time.Duration(sw.rng.Int63n(dialRandomizerIntervalMilliseconds)) * time.Millisecond + time.Sleep(r + interval) +} + func (sw *Switch) dialSeed(addr *NetAddress) { peer, err := sw.DialPeerWithAddress(addr, true) if err != nil { @@ -413,36 +433,61 @@ func (sw *Switch) Peers() IPeerSet { // If the peer is persistent, it will attempt to reconnect. // TODO: make record depending on reason. func (sw *Switch) StopPeerForError(peer Peer, reason interface{}) { - addr, _ := NewNetAddressString(peer.NodeInfo().RemoteAddr) sw.Logger.Error("Stopping peer for error", "peer", peer, "err", reason) sw.stopAndRemovePeer(peer, reason) if peer.IsPersistent() { - go func() { - sw.Logger.Info("Reconnecting to peer", "peer", peer) - for i := 1; i < reconnectAttempts; i++ { - if !sw.IsRunning() { - return - } - - peer, err := sw.DialPeerWithAddress(addr, true) - if err != nil { - if i == reconnectAttempts { - sw.Logger.Info("Error reconnecting to peer. Giving up", "tries", i, "err", err) - return - } - sw.Logger.Info("Error reconnecting to peer. Trying again", "tries", i, "err", err) - time.Sleep(reconnectInterval) - continue - } - - sw.Logger.Info("Reconnected to peer", "peer", peer) - return - } - }() + go sw.reconnectToPeer(peer) } } +// reconnectToPeer tries to reconnect to the peer, first repeatedly +// with a fixed interval, then with exponential backoff. +// If no success after all that, it stops trying, and leaves it +// to the PEX/Addrbook to find the peer again +func (sw *Switch) reconnectToPeer(peer Peer) { + addr, _ := NewNetAddressString(peer.NodeInfo().RemoteAddr) + start := time.Now() + sw.Logger.Info("Reconnecting to peer", "peer", peer) + for i := 0; i < reconnectAttempts; i++ { + if !sw.IsRunning() { + return + } + + peer, err := sw.DialPeerWithAddress(addr, true) + if err != nil { + sw.Logger.Info("Error reconnecting to peer. Trying again", "tries", i, "err", err, "peer", peer) + // sleep a set amount + sw.randomSleep(reconnectInterval) + continue + } else { + sw.Logger.Info("Reconnected to peer", "peer", peer) + return + } + } + + sw.Logger.Error("Failed to reconnect to peer. Beginning exponential backoff", + "peer", peer, "elapsed", time.Since(start)) + for i := 0; i < reconnectBackOffAttempts; i++ { + if !sw.IsRunning() { + return + } + + // sleep an exponentially increasing amount + sleepIntervalSeconds := math.Pow(reconnectBackOffBaseSeconds, float64(i)) + sw.randomSleep(time.Duration(sleepIntervalSeconds) * time.Second) + peer, err := sw.DialPeerWithAddress(addr, true) + if err != nil { + sw.Logger.Info("Error reconnecting to peer. Trying again", "tries", i, "err", err, "peer", peer) + continue + } else { + sw.Logger.Info("Reconnected to peer", "peer", peer) + return + } + } + sw.Logger.Error("Failed to reconnect to peer. Giving up", "peer", peer, "elapsed", time.Since(start)) +} + // StopPeerGracefully disconnects from a peer gracefully. // TODO: handle graceful disconnects. func (sw *Switch) StopPeerGracefully(peer Peer) { diff --git a/p2p/switch_test.go b/p2p/switch_test.go index 3ce24d082..72807d36a 100644 --- a/p2p/switch_test.go +++ b/p2p/switch_test.go @@ -272,10 +272,10 @@ func TestSwitchReconnectsToPersistentPeer(t *testing.T) { // simulate failure by closing connection peer.CloseConn() - // TODO: actually detect the disconnection and wait for reconnect + // TODO: remove sleep, detect the disconnection, wait for reconnect npeers := sw.Peers().Size() for i := 0; i < 20; i++ { - time.Sleep(100 * time.Millisecond) + time.Sleep(250 * time.Millisecond) npeers = sw.Peers().Size() if npeers > 0 { break From 5c58db3bb49e35d0cc2a32de904cb754e5fd1c7b Mon Sep 17 00:00:00 2001 From: Ethan Buchman Date: Mon, 11 Dec 2017 14:49:34 -0500 Subject: [PATCH 29/34] changelog [ci skip] --- CHANGELOG.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 7b5fd8c03..d19518c20 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -35,6 +35,11 @@ BREAKING CHANGES: IMPROVEMENTS: - rpc/client: can act as event bus subscriber (See https://github.com/tendermint/tendermint/issues/945). +- p2p: use exponential backoff from seconds to hours when attempting to reconnect to persistent peer +- config: moniker defaults to the machine's hostname instead of "anonymous" + +BUG FIXES: +- p2p: no longer exit if one of the seed addresses is incorrect ## 0.13.0 (December 6, 2017) From 2af32d6665e78159eeb8880809b020b18bd48abd Mon Sep 17 00:00:00 2001 From: Ethan Buchman Date: Mon, 11 Dec 2017 15:05:56 -0500 Subject: [PATCH 30/34] changelog and version bump --- CHANGELOG.md | 2 +- version/version.go | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index d19518c20..3d5d377da 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -27,7 +27,7 @@ BUG FIXES: - Graceful handling/recovery for apps that have non-determinism or fail to halt - Graceful handling/recovery for violations of safety, or liveness -## 0.14.0 (TBD) +## 0.14.0 (December 11, 2017) BREAKING CHANGES: - consensus/wal: removed separator diff --git a/version/version.go b/version/version.go index 54081b356..baec0b343 100644 --- a/version/version.go +++ b/version/version.go @@ -1,13 +1,13 @@ package version const Maj = "0" -const Min = "13" +const Min = "14" const Fix = "0" var ( // Version is the current version of Tendermint // Must be a string because scripts like dist.sh read this file. - Version = "0.13.0" + Version = "0.14.0" // GitCommit is the current HEAD set using ldflags. GitCommit string From b2385b46cf3147fae0c74221ba764d40d76f967a Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Mon, 11 Dec 2017 16:22:27 -0600 Subject: [PATCH 31/34] wait 5 sec for a block on CircleCI Fixes: ``` --- FAIL: TestHandshakeReplaySome (12.40s) replay_test.go:332: waited too long for tendermint to produce 6 blocks ``` --- consensus/wal_generator.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/consensus/wal_generator.go b/consensus/wal_generator.go index 6f8bb8df3..c43e7c635 100644 --- a/consensus/wal_generator.go +++ b/consensus/wal_generator.go @@ -91,7 +91,7 @@ func WALWithNBlocks(numBlocks int) (data []byte, err error) { case <-numBlocksWritten: wr.Flush() return b.Bytes(), nil - case <-time.After(time.Duration(2*numBlocks) * time.Second): + case <-time.After(time.Duration(5*numBlocks) * time.Second): return b.Bytes(), fmt.Errorf("waited too long for tendermint to produce %d blocks", numBlocks) } } From d943f66abcda299685f6f7acd4e13d55b8e22761 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Mon, 11 Dec 2017 16:55:40 -0600 Subject: [PATCH 32/34] remove get_deps, update_deps and list_deps Rationale: they only lead to broken builds and should not be used by anyone. --- Makefile | 23 +++++------------------ 1 file changed, 5 insertions(+), 18 deletions(-) diff --git a/Makefile b/Makefile index b94cfd04c..36ba6097b 100644 --- a/Makefile +++ b/Makefile @@ -54,27 +54,14 @@ draw_deps: go get github.com/RobotsAndPencils/goviz @goviz -i github.com/tendermint/tendermint/cmd/tendermint -d 3 | dot -Tpng -o dependency-graph.png -list_deps: - @go list -f '{{join .Deps "\n"}}' ./... | \ - grep -v /vendor/ | sort | uniq | \ - xargs go list -f '{{if not .Standard}}{{.ImportPath}}{{end}}' - -get_deps: - @echo "--> Running go get" - @go get -v -d $(PACKAGES) - @go list -f '{{join .TestImports "\n"}}' ./... | \ - grep -v /vendor/ | sort | uniq | \ - xargs go get -v -d - -update_deps: - @echo "--> Updating dependencies" - @go get -d -u ./... - get_vendor_deps: @hash glide 2>/dev/null || go get github.com/Masterminds/glide @rm -rf vendor/ @echo "--> Running glide install" - $(GOPATH)/bin/glide install + @$(GOPATH)/bin/glide install + +update_vendor_deps: + @$(GOPATH)/bin/glide update update_tools: @echo "--> Updating tools" @@ -119,4 +106,4 @@ metalinter_test: #--enable=vet \ #--enable=vetshadow \ -.PHONY: install build build_race dist test test_race test_integrations test100 draw_deps list_deps get_deps get_vendor_deps update_deps update_tools tools test_release +.PHONY: install build build_race dist test test_race test_integrations test100 draw_deps get_vendor_deps update_vendor_deps update_tools tools test_release From 69205594cc05506b53965c2196abda56696aa4a3 Mon Sep 17 00:00:00 2001 From: Anton Kaliaev Date: Mon, 11 Dec 2017 16:57:30 -0600 Subject: [PATCH 33/34] add gopath to path on CircleCI --- circle.yml | 1 + 1 file changed, 1 insertion(+) diff --git a/circle.yml b/circle.yml index e606097cf..3805eb80f 100644 --- a/circle.yml +++ b/circle.yml @@ -7,6 +7,7 @@ machine: GOPATH: "$HOME/.go_project" PROJECT_PARENT_PATH: "$GOPATH/src/github.com/$CIRCLE_PROJECT_USERNAME" PROJECT_PATH: "$PROJECT_PARENT_PATH/$CIRCLE_PROJECT_REPONAME" + PATH: "$HOME/.go_project/bin:${PATH}" hosts: localhost: 127.0.0.1 From 11761d17698151166af94219d2b53f40b1be546c Mon Sep 17 00:00:00 2001 From: Ethan Buchman Date: Mon, 11 Dec 2017 16:37:48 -0500 Subject: [PATCH 34/34] initial port of cosmos-sdk basecli proxy --- CHANGELOG.md | 4 + cmd/tendermint/commands/lite.go | 60 +++++++++++ cmd/tendermint/main.go | 1 + lite/proxy/block.go | 40 +++++++ lite/proxy/certifier.go | 30 ++++++ lite/proxy/errors.go | 22 ++++ lite/proxy/errors_test.go | 17 +++ lite/proxy/proxy.go | 69 ++++++++++++ lite/proxy/query.go | 120 +++++++++++++++++++++ lite/proxy/query_test.go | 140 ++++++++++++++++++++++++ lite/proxy/wrapper.go | 185 ++++++++++++++++++++++++++++++++ 11 files changed, 688 insertions(+) create mode 100644 cmd/tendermint/commands/lite.go create mode 100644 lite/proxy/block.go create mode 100644 lite/proxy/certifier.go create mode 100644 lite/proxy/errors.go create mode 100644 lite/proxy/errors_test.go create mode 100644 lite/proxy/proxy.go create mode 100644 lite/proxy/query.go create mode 100644 lite/proxy/query_test.go create mode 100644 lite/proxy/wrapper.go diff --git a/CHANGELOG.md b/CHANGELOG.md index 3d5d377da..55b2f951a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -33,6 +33,10 @@ BREAKING CHANGES: - consensus/wal: removed separator - rpc/client: changed Subscribe/Unsubscribe/UnsubscribeAll funcs signatures to be identical to event bus. +FEATURES: +- new `tendermint lite` command (and `lite/proxy` pkg) for running a light-client RPC proxy. + NOTE it is currently insecure and its APIs are not yet covered by semver + IMPROVEMENTS: - rpc/client: can act as event bus subscriber (See https://github.com/tendermint/tendermint/issues/945). - p2p: use exponential backoff from seconds to hours when attempting to reconnect to persistent peer diff --git a/cmd/tendermint/commands/lite.go b/cmd/tendermint/commands/lite.go new file mode 100644 index 000000000..d94f95ba4 --- /dev/null +++ b/cmd/tendermint/commands/lite.go @@ -0,0 +1,60 @@ +package commands + +import ( + "github.com/spf13/cobra" + + cmn "github.com/tendermint/tmlibs/common" + + "github.com/tendermint/tendermint/lite/proxy" + rpcclient "github.com/tendermint/tendermint/rpc/client" +) + +// LiteCmd represents the base command when called without any subcommands +var LiteCmd = &cobra.Command{ + Use: "lite", + Short: "Run lite-client proxy server, verifying tendermint rpc", + Long: `This node will run a secure proxy to a tendermint rpc server. + +All calls that can be tracked back to a block header by a proof +will be verified before passing them back to the caller. Other that +that it will present the same interface as a full tendermint node, +just with added trust and running locally.`, + RunE: runProxy, + SilenceUsage: true, +} + +var ( + listenAddr string + nodeAddr string + chainID string + home string +) + +func init() { + LiteCmd.Flags().StringVar(&listenAddr, "laddr", ":8888", "Serve the proxy on the given port") + LiteCmd.Flags().StringVar(&nodeAddr, "node", "localhost:46657", "Connect to a Tendermint node at this address") + LiteCmd.Flags().StringVar(&chainID, "chain-id", "tendermint", "Specify the Tendermint chain ID") + LiteCmd.Flags().StringVar(&home, "home-dir", ".tendermint-lite", "Specify the home directory") +} + +func runProxy(cmd *cobra.Command, args []string) error { + // First, connect a client + node := rpcclient.NewHTTP(nodeAddr, "/websocket") + + cert, err := proxy.GetCertifier(chainID, home, nodeAddr) + if err != nil { + return err + } + sc := proxy.SecureClient(node, cert) + + err = proxy.StartProxy(sc, listenAddr, logger) + if err != nil { + return err + } + + cmn.TrapSignal(func() { + // TODO: close up shop + }) + + return nil +} diff --git a/cmd/tendermint/main.go b/cmd/tendermint/main.go index a46f227c5..c24cfe197 100644 --- a/cmd/tendermint/main.go +++ b/cmd/tendermint/main.go @@ -15,6 +15,7 @@ func main() { cmd.GenValidatorCmd, cmd.InitFilesCmd, cmd.ProbeUpnpCmd, + cmd.LiteCmd, cmd.ReplayCmd, cmd.ReplayConsoleCmd, cmd.ResetAllCmd, diff --git a/lite/proxy/block.go b/lite/proxy/block.go new file mode 100644 index 000000000..60cd00f0d --- /dev/null +++ b/lite/proxy/block.go @@ -0,0 +1,40 @@ +package proxy + +import ( + "bytes" + + "github.com/pkg/errors" + + "github.com/tendermint/tendermint/lite" + certerr "github.com/tendermint/tendermint/lite/errors" + "github.com/tendermint/tendermint/types" +) + +func ValidateBlockMeta(meta *types.BlockMeta, check lite.Commit) error { + // TODO: check the BlockID?? + return ValidateHeader(meta.Header, check) +} + +func ValidateBlock(meta *types.Block, check lite.Commit) error { + err := ValidateHeader(meta.Header, check) + if err != nil { + return err + } + if !bytes.Equal(meta.Data.Hash(), meta.Header.DataHash) { + return errors.New("Data hash doesn't match header") + } + return nil +} + +func ValidateHeader(head *types.Header, check lite.Commit) error { + // make sure they are for the same height (obvious fail) + if head.Height != check.Height() { + return certerr.ErrHeightMismatch(head.Height, check.Height()) + } + // check if they are equal by using hashes + chead := check.Header + if !bytes.Equal(head.Hash(), chead.Hash()) { + return errors.New("Headers don't match") + } + return nil +} diff --git a/lite/proxy/certifier.go b/lite/proxy/certifier.go new file mode 100644 index 000000000..1d7284f2c --- /dev/null +++ b/lite/proxy/certifier.go @@ -0,0 +1,30 @@ +package proxy + +import ( + "github.com/tendermint/tendermint/lite" + certclient "github.com/tendermint/tendermint/lite/client" + "github.com/tendermint/tendermint/lite/files" +) + +func GetCertifier(chainID, rootDir, nodeAddr string) (*lite.Inquiring, error) { + trust := lite.NewCacheProvider( + lite.NewMemStoreProvider(), + files.NewProvider(rootDir), + ) + + source := certclient.NewHTTPProvider(nodeAddr) + + // XXX: total insecure hack to avoid `init` + fc, err := source.LatestCommit() + /* XXX + // this gets the most recent verified commit + fc, err := trust.LatestCommit() + if certerr.IsCommitNotFoundErr(err) { + return nil, errors.New("Please run init first to establish a root of trust") + }*/ + if err != nil { + return nil, err + } + cert := lite.NewInquiring(chainID, fc, trust, source) + return cert, nil +} diff --git a/lite/proxy/errors.go b/lite/proxy/errors.go new file mode 100644 index 000000000..5a2713e3c --- /dev/null +++ b/lite/proxy/errors.go @@ -0,0 +1,22 @@ +package proxy + +import ( + "fmt" + + "github.com/pkg/errors" +) + +//-------------------------------------------- + +var errNoData = fmt.Errorf("No data returned for query") + +// IsNoDataErr checks whether an error is due to a query returning empty data +func IsNoDataErr(err error) bool { + return errors.Cause(err) == errNoData +} + +func ErrNoData() error { + return errors.WithStack(errNoData) +} + +//-------------------------------------------- diff --git a/lite/proxy/errors_test.go b/lite/proxy/errors_test.go new file mode 100644 index 000000000..7f51be50f --- /dev/null +++ b/lite/proxy/errors_test.go @@ -0,0 +1,17 @@ +package proxy + +import ( + "errors" + "testing" + + "github.com/stretchr/testify/assert" +) + +func TestErrorNoData(t *testing.T) { + e1 := ErrNoData() + assert.True(t, IsNoDataErr(e1)) + + e2 := errors.New("foobar") + assert.False(t, IsNoDataErr(e2)) + assert.False(t, IsNoDataErr(nil)) +} diff --git a/lite/proxy/proxy.go b/lite/proxy/proxy.go new file mode 100644 index 000000000..21db13ed4 --- /dev/null +++ b/lite/proxy/proxy.go @@ -0,0 +1,69 @@ +package proxy + +import ( + "net/http" + + "github.com/tendermint/tmlibs/log" + + rpcclient "github.com/tendermint/tendermint/rpc/client" + "github.com/tendermint/tendermint/rpc/core" + rpc "github.com/tendermint/tendermint/rpc/lib/server" +) + +const ( + wsEndpoint = "/websocket" +) + +// StartProxy will start the websocket manager on the client, +// set up the rpc routes to proxy via the given client, +// and start up an http/rpc server on the location given by bind (eg. :1234) +func StartProxy(c rpcclient.Client, listenAddr string, logger log.Logger) error { + c.Start() + r := RPCRoutes(c) + + // build the handler... + mux := http.NewServeMux() + rpc.RegisterRPCFuncs(mux, r, logger) + + wm := rpc.NewWebsocketManager(r, rpc.EventSubscriber(c)) + wm.SetLogger(logger) + core.SetLogger(logger) + mux.HandleFunc(wsEndpoint, wm.WebsocketHandler) + + _, err := rpc.StartHTTPServer(listenAddr, mux, logger) + + return err +} + +// RPCRoutes just routes everything to the given client, as if it were +// a tendermint fullnode. +// +// if we want security, the client must implement it as a secure client +func RPCRoutes(c rpcclient.Client) map[string]*rpc.RPCFunc { + + return map[string]*rpc.RPCFunc{ + // Subscribe/unsubscribe are reserved for websocket events. + // We can just use the core tendermint impl, which uses the + // EventSwitch we registered in NewWebsocketManager above + "subscribe": rpc.NewWSRPCFunc(core.Subscribe, "query"), + "unsubscribe": rpc.NewWSRPCFunc(core.Unsubscribe, "query"), + + // info API + "status": rpc.NewRPCFunc(c.Status, ""), + "blockchain": rpc.NewRPCFunc(c.BlockchainInfo, "minHeight,maxHeight"), + "genesis": rpc.NewRPCFunc(c.Genesis, ""), + "block": rpc.NewRPCFunc(c.Block, "height"), + "commit": rpc.NewRPCFunc(c.Commit, "height"), + "tx": rpc.NewRPCFunc(c.Tx, "hash,prove"), + "validators": rpc.NewRPCFunc(c.Validators, ""), + + // broadcast API + "broadcast_tx_commit": rpc.NewRPCFunc(c.BroadcastTxCommit, "tx"), + "broadcast_tx_sync": rpc.NewRPCFunc(c.BroadcastTxSync, "tx"), + "broadcast_tx_async": rpc.NewRPCFunc(c.BroadcastTxAsync, "tx"), + + // abci API + "abci_query": rpc.NewRPCFunc(c.ABCIQuery, "path,data,prove"), + "abci_info": rpc.NewRPCFunc(c.ABCIInfo, ""), + } +} diff --git a/lite/proxy/query.go b/lite/proxy/query.go new file mode 100644 index 000000000..0a9d86a0e --- /dev/null +++ b/lite/proxy/query.go @@ -0,0 +1,120 @@ +package proxy + +import ( + "github.com/pkg/errors" + + "github.com/tendermint/go-wire/data" + "github.com/tendermint/iavl" + + "github.com/tendermint/tendermint/lite" + "github.com/tendermint/tendermint/lite/client" + certerr "github.com/tendermint/tendermint/lite/errors" + rpcclient "github.com/tendermint/tendermint/rpc/client" + ctypes "github.com/tendermint/tendermint/rpc/core/types" +) + +// GetWithProof will query the key on the given node, and verify it has +// a valid proof, as defined by the certifier. +// +// If there is any error in checking, returns an error. +// If val is non-empty, proof should be KeyExistsProof +// If val is empty, proof should be KeyMissingProof +func GetWithProof(key []byte, reqHeight int64, node rpcclient.Client, + cert lite.Certifier) ( + val data.Bytes, height int64, proof iavl.KeyProof, err error) { + + if reqHeight < 0 { + err = errors.Errorf("Height cannot be negative") + return + } + + _resp, proof, err := GetWithProofOptions("/key", key, + rpcclient.ABCIQueryOptions{Height: int64(reqHeight)}, + node, cert) + if _resp != nil { + resp := _resp.Response + val, height = resp.Value, resp.Height + } + return val, height, proof, err +} + +// GetWithProofOptions is useful if you want full access to the ABCIQueryOptions +func GetWithProofOptions(path string, key []byte, opts rpcclient.ABCIQueryOptions, + node rpcclient.Client, cert lite.Certifier) ( + *ctypes.ResultABCIQuery, iavl.KeyProof, error) { + + _resp, err := node.ABCIQueryWithOptions(path, key, opts) + if err != nil { + return nil, nil, err + } + resp := _resp.Response + + // make sure the proof is the proper height + if resp.IsErr() { + err = errors.Errorf("Query error %d: %d", resp.Code) + return nil, nil, err + } + if len(resp.Key) == 0 || len(resp.Proof) == 0 { + return nil, nil, ErrNoData() + } + if resp.Height == 0 { + return nil, nil, errors.New("Height returned is zero") + } + + // AppHash for height H is in header H+1 + commit, err := GetCertifiedCommit(resp.Height+1, node, cert) + if err != nil { + return nil, nil, err + } + + if len(resp.Value) > 0 { + // The key was found, construct a proof of existence. + eproof, err := iavl.ReadKeyExistsProof(resp.Proof) + if err != nil { + return nil, nil, errors.Wrap(err, "Error reading proof") + } + + // Validate the proof against the certified header to ensure data integrity. + err = eproof.Verify(resp.Key, resp.Value, commit.Header.AppHash) + if err != nil { + return nil, nil, errors.Wrap(err, "Couldn't verify proof") + } + return &ctypes.ResultABCIQuery{resp}, eproof, nil + } + + // The key wasn't found, construct a proof of non-existence. + var aproof *iavl.KeyAbsentProof + aproof, err = iavl.ReadKeyAbsentProof(resp.Proof) + if err != nil { + return nil, nil, errors.Wrap(err, "Error reading proof") + } + // Validate the proof against the certified header to ensure data integrity. + err = aproof.Verify(resp.Key, nil, commit.Header.AppHash) + if err != nil { + return nil, nil, errors.Wrap(err, "Couldn't verify proof") + } + return &ctypes.ResultABCIQuery{resp}, aproof, ErrNoData() +} + +// GetCertifiedCommit gets the signed header for a given height +// and certifies it. Returns error if unable to get a proven header. +func GetCertifiedCommit(h int64, node rpcclient.Client, + cert lite.Certifier) (empty lite.Commit, err error) { + + // FIXME: cannot use cert.GetByHeight for now, as it also requires + // Validators and will fail on querying tendermint for non-current height. + // When this is supported, we should use it instead... + rpcclient.WaitForHeight(node, h, nil) + cresp, err := node.Commit(&h) + if err != nil { + return + } + commit := client.CommitFromResult(cresp) + + // validate downloaded checkpoint with our request and trust store. + if commit.Height() != h { + return empty, certerr.ErrHeightMismatch(h, commit.Height()) + } + err = cert.Certify(commit) + return commit, nil +} diff --git a/lite/proxy/query_test.go b/lite/proxy/query_test.go new file mode 100644 index 000000000..234f65e55 --- /dev/null +++ b/lite/proxy/query_test.go @@ -0,0 +1,140 @@ +package proxy + +import ( + "fmt" + "os" + "testing" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" + + "github.com/tendermint/abci/example/dummy" + + "github.com/tendermint/tendermint/lite" + certclient "github.com/tendermint/tendermint/lite/client" + nm "github.com/tendermint/tendermint/node" + "github.com/tendermint/tendermint/rpc/client" + rpctest "github.com/tendermint/tendermint/rpc/test" + "github.com/tendermint/tendermint/types" +) + +var node *nm.Node + +// TODO fix tests!! + +func TestMain(m *testing.M) { + app := dummy.NewDummyApplication() + + node = rpctest.StartTendermint(app) + + code := m.Run() + + node.Stop() + node.Wait() + os.Exit(code) +} + +func dummyTx(k, v []byte) []byte { + return []byte(fmt.Sprintf("%s=%s", k, v)) +} + +func _TestAppProofs(t *testing.T) { + assert, require := assert.New(t), require.New(t) + + cl := client.NewLocal(node) + client.WaitForHeight(cl, 1, nil) + + k := []byte("my-key") + v := []byte("my-value") + + tx := dummyTx(k, v) + br, err := cl.BroadcastTxCommit(tx) + require.NoError(err, "%+v", err) + require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx) + require.EqualValues(0, br.DeliverTx.Code) + brh := br.Height + + // This sets up our trust on the node based on some past point. + source := certclient.NewProvider(cl) + seed, err := source.GetByHeight(brh - 2) + require.NoError(err, "%+v", err) + cert := lite.NewStatic("my-chain", seed.Validators) + + client.WaitForHeight(cl, 3, nil) + latest, err := source.LatestCommit() + require.NoError(err, "%+v", err) + rootHash := latest.Header.AppHash + + // verify a query before the tx block has no data (and valid non-exist proof) + bs, height, proof, err := GetWithProof(k, brh-1, cl, cert) + fmt.Println(bs, height, proof, err) + require.NotNil(err) + require.True(IsNoDataErr(err), err.Error()) + require.Nil(bs) + + // but given that block it is good + bs, height, proof, err = GetWithProof(k, brh, cl, cert) + require.NoError(err, "%+v", err) + require.NotNil(proof) + require.True(height >= int64(latest.Header.Height)) + + // Alexis there is a bug here, somehow the above code gives us rootHash = nil + // and proof.Verify doesn't care, while proofNotExists.Verify fails. + // I am hacking this in to make it pass, but please investigate further. + rootHash = proof.Root() + + //err = wire.ReadBinaryBytes(bs, &data) + //require.NoError(err, "%+v", err) + assert.EqualValues(v, bs) + err = proof.Verify(k, bs, rootHash) + assert.NoError(err, "%+v", err) + + // Test non-existing key. + missing := []byte("my-missing-key") + bs, _, proof, err = GetWithProof(missing, 0, cl, cert) + require.True(IsNoDataErr(err)) + require.Nil(bs) + require.NotNil(proof) + err = proof.Verify(missing, nil, rootHash) + assert.NoError(err, "%+v", err) + err = proof.Verify(k, nil, rootHash) + assert.Error(err) +} + +func _TestTxProofs(t *testing.T) { + assert, require := assert.New(t), require.New(t) + + cl := client.NewLocal(node) + client.WaitForHeight(cl, 1, nil) + + tx := dummyTx([]byte("key-a"), []byte("value-a")) + br, err := cl.BroadcastTxCommit(tx) + require.NoError(err, "%+v", err) + require.EqualValues(0, br.CheckTx.Code, "%#v", br.CheckTx) + require.EqualValues(0, br.DeliverTx.Code) + brh := br.Height + + source := certclient.NewProvider(cl) + seed, err := source.GetByHeight(brh - 2) + require.NoError(err, "%+v", err) + cert := lite.NewStatic("my-chain", seed.Validators) + + // First let's make sure a bogus transaction hash returns a valid non-existence proof. + key := types.Tx([]byte("bogus")).Hash() + res, err := cl.Tx(key, true) + require.NotNil(err) + require.Contains(err.Error(), "not found") + + // Now let's check with the real tx hash. + key = types.Tx(tx).Hash() + res, err = cl.Tx(key, true) + require.NoError(err, "%+v", err) + require.NotNil(res) + err = res.Proof.Validate(key) + assert.NoError(err, "%+v", err) + + commit, err := GetCertifiedCommit(br.Height, cl, cert) + require.Nil(err, "%+v", err) + require.Equal(res.Proof.RootHash, commit.Header.DataHash) + +} diff --git a/lite/proxy/wrapper.go b/lite/proxy/wrapper.go new file mode 100644 index 000000000..a76c29426 --- /dev/null +++ b/lite/proxy/wrapper.go @@ -0,0 +1,185 @@ +package proxy + +import ( + "github.com/tendermint/go-wire/data" + + "github.com/tendermint/tendermint/lite" + certclient "github.com/tendermint/tendermint/lite/client" + rpcclient "github.com/tendermint/tendermint/rpc/client" + ctypes "github.com/tendermint/tendermint/rpc/core/types" +) + +var _ rpcclient.Client = Wrapper{} + +// Wrapper wraps a rpcclient with a Certifier and double-checks any input that is +// provable before passing it along. Allows you to make any rpcclient fully secure. +type Wrapper struct { + rpcclient.Client + cert *lite.Inquiring +} + +// SecureClient uses a given certifier to wrap an connection to an untrusted +// host and return a cryptographically secure rpc client. +// +// If it is wrapping an HTTP rpcclient, it will also wrap the websocket interface +func SecureClient(c rpcclient.Client, cert *lite.Inquiring) Wrapper { + wrap := Wrapper{c, cert} + // TODO: no longer possible as no more such interface exposed.... + // if we wrap http client, then we can swap out the event switch to filter + // if hc, ok := c.(*rpcclient.HTTP); ok { + // evt := hc.WSEvents.EventSwitch + // hc.WSEvents.EventSwitch = WrappedSwitch{evt, wrap} + // } + return wrap +} + +// ABCIQueryWithOptions exposes all options for the ABCI query and verifies the returned proof +func (w Wrapper) ABCIQueryWithOptions(path string, data data.Bytes, opts rpcclient.ABCIQueryOptions) (*ctypes.ResultABCIQuery, error) { + res, _, err := GetWithProofOptions(path, data, opts, w.Client, w.cert) + return res, err +} + +// ABCIQuery uses default options for the ABCI query and verifies the returned proof +func (w Wrapper) ABCIQuery(path string, data data.Bytes) (*ctypes.ResultABCIQuery, error) { + return w.ABCIQueryWithOptions(path, data, rpcclient.DefaultABCIQueryOptions) +} + +// Tx queries for a given tx and verifies the proof if it was requested +func (w Wrapper) Tx(hash []byte, prove bool) (*ctypes.ResultTx, error) { + res, err := w.Client.Tx(hash, prove) + if !prove || err != nil { + return res, err + } + h := int64(res.Height) + check, err := GetCertifiedCommit(h, w.Client, w.cert) + if err != nil { + return res, err + } + err = res.Proof.Validate(check.Header.DataHash) + return res, err +} + +// BlockchainInfo requests a list of headers and verifies them all... +// Rather expensive. +// +// TODO: optimize this if used for anything needing performance +func (w Wrapper) BlockchainInfo(minHeight, maxHeight int64) (*ctypes.ResultBlockchainInfo, error) { + r, err := w.Client.BlockchainInfo(minHeight, maxHeight) + if err != nil { + return nil, err + } + + // go and verify every blockmeta in the result.... + for _, meta := range r.BlockMetas { + // get a checkpoint to verify from + c, err := w.Commit(&meta.Header.Height) + if err != nil { + return nil, err + } + check := certclient.CommitFromResult(c) + err = ValidateBlockMeta(meta, check) + if err != nil { + return nil, err + } + } + + return r, nil +} + +// Block returns an entire block and verifies all signatures +func (w Wrapper) Block(height *int64) (*ctypes.ResultBlock, error) { + r, err := w.Client.Block(height) + if err != nil { + return nil, err + } + // get a checkpoint to verify from + c, err := w.Commit(height) + if err != nil { + return nil, err + } + check := certclient.CommitFromResult(c) + + // now verify + err = ValidateBlockMeta(r.BlockMeta, check) + if err != nil { + return nil, err + } + err = ValidateBlock(r.Block, check) + if err != nil { + return nil, err + } + return r, nil +} + +// Commit downloads the Commit and certifies it with the lite. +// +// This is the foundation for all other verification in this module +func (w Wrapper) Commit(height *int64) (*ctypes.ResultCommit, error) { + rpcclient.WaitForHeight(w.Client, *height, nil) + r, err := w.Client.Commit(height) + // if we got it, then certify it + if err == nil { + check := certclient.CommitFromResult(r) + err = w.cert.Certify(check) + } + return r, err +} + +// // WrappedSwitch creates a websocket connection that auto-verifies any info +// // coming through before passing it along. +// // +// // Since the verification takes 1-2 rpc calls, this is obviously only for +// // relatively low-throughput situations that can tolerate a bit extra latency +// type WrappedSwitch struct { +// types.EventSwitch +// client rpcclient.Client +// } + +// // FireEvent verifies any block or header returned from the eventswitch +// func (s WrappedSwitch) FireEvent(event string, data events.EventData) { +// tm, ok := data.(types.TMEventData) +// if !ok { +// fmt.Printf("bad type %#v\n", data) +// return +// } + +// // check to validate it if possible, and drop if not valid +// switch t := tm.Unwrap().(type) { +// case types.EventDataNewBlockHeader: +// err := verifyHeader(s.client, t.Header) +// if err != nil { +// fmt.Printf("Invalid header: %#v\n", err) +// return +// } +// case types.EventDataNewBlock: +// err := verifyBlock(s.client, t.Block) +// if err != nil { +// fmt.Printf("Invalid block: %#v\n", err) +// return +// } +// // TODO: can we verify tx as well? anything else +// } + +// // looks good, we fire it +// s.EventSwitch.FireEvent(event, data) +// } + +// func verifyHeader(c rpcclient.Client, head *types.Header) error { +// // get a checkpoint to verify from +// commit, err := c.Commit(&head.Height) +// if err != nil { +// return err +// } +// check := certclient.CommitFromResult(commit) +// return ValidateHeader(head, check) +// } +// +// func verifyBlock(c rpcclient.Client, block *types.Block) error { +// // get a checkpoint to verify from +// commit, err := c.Commit(&block.Height) +// if err != nil { +// return err +// } +// check := certclient.CommitFromResult(commit) +// return ValidateBlock(block, check) +// }