test(rpc): Ethereum JSONRPC Websocket (#1342)
* WIP! add Ethereum JSONRPC Websocket test * move to test-rpc * clean up * fix batch request with websocket * refactor
This commit is contained in:
Tuan Pham Anh
GitHub
parent
3ed55d9395
commit
26c341d04d
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@ -186,6 +186,13 @@ func (s *websocketsServer) readLoop(wsConn *wsConn) {
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return
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}
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if isBatch(mb) {
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if err := s.tcpGetAndSendResponse(wsConn, mb); err != nil {
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s.sendErrResponse(wsConn, err.Error())
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}
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continue
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}
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var msg map[string]interface{}
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if err = json.Unmarshal(mb, &msg); err != nil {
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s.sendErrResponse(wsConn, err.Error())
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@ -214,14 +221,8 @@ func (s *websocketsServer) readLoop(wsConn *wsConn) {
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switch method {
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case "eth_subscribe":
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params, ok := msg["params"].([]interface{})
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params, ok := s.getParamsAndCheckValid(msg, wsConn)
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if !ok {
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s.sendErrResponse(wsConn, "invalid parameters")
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continue
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}
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if len(params) == 0 {
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s.sendErrResponse(wsConn, "empty parameters")
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continue
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}
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@ -243,14 +244,8 @@ func (s *websocketsServer) readLoop(wsConn *wsConn) {
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break
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}
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case "eth_unsubscribe":
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params, ok := msg["params"].([]interface{})
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params, ok := s.getParamsAndCheckValid(msg, wsConn)
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if !ok {
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s.sendErrResponse(wsConn, "invalid parameters")
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continue
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}
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if len(params) == 0 {
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s.sendErrResponse(wsConn, "empty parameters")
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continue
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}
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@ -285,6 +280,22 @@ func (s *websocketsServer) readLoop(wsConn *wsConn) {
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}
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}
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// tcpGetAndSendResponse sends error response to client if params is invalid
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func (s *websocketsServer) getParamsAndCheckValid(msg map[string]interface{}, wsConn *wsConn) ([]interface{}, bool) {
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params, ok := msg["params"].([]interface{})
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if !ok {
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s.sendErrResponse(wsConn, "invalid parameters")
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return nil, false
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}
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if len(params) == 0 {
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s.sendErrResponse(wsConn, "empty parameters")
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return nil, false
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}
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return params, true
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}
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// tcpGetAndSendResponse connects to the rest-server over tcp, posts a JSON-RPC request, and sends the response
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// to the client over websockets
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func (s *websocketsServer) tcpGetAndSendResponse(wsConn *wsConn, mb []byte) error {
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@ -658,3 +669,16 @@ func (api *pubSubAPI) subscribePendingTransactions(wsConn *wsConn, subID rpc.ID)
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func (api *pubSubAPI) subscribeSyncing(wsConn *wsConn, subID rpc.ID) (pubsub.UnsubscribeFunc, error) {
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return nil, errors.New("syncing subscription is not implemented")
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}
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// copy from github.com/ethereum/go-ethereum/rpc/json.go
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// isBatch returns true when the first non-whitespace characters is '['
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func isBatch(raw []byte) bool {
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for _, c := range raw {
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// skip insignificant whitespace (http://www.ietf.org/rfc/rfc4627.txt)
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if c == 0x20 || c == 0x09 || c == 0x0a || c == 0x0d {
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continue
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}
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return c == '['
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}
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return false
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}
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@ -14,6 +14,8 @@ REMOVE_DATA_DIR=false
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#PORT AND RPC_PORT 3 initial digits, to be concat with a suffix later when node is initialized
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RPC_PORT="854"
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# Ethereum JSONRPC Websocket
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WS_PORT="855"
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IP_ADDR="0.0.0.0"
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KEY="mykey"
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@ -106,7 +108,7 @@ start_func() {
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echo "starting ethermint node $i in background ..."
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"$PWD"/build/ethermintd start --pruning=nothing --rpc.unsafe \
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--p2p.laddr tcp://$IP_ADDR:$NODE_P2P_PORT"$i" --address tcp://$IP_ADDR:$NODE_PORT"$i" --rpc.laddr tcp://$IP_ADDR:$NODE_RPC_PORT"$i" \
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--json-rpc.address=$IP_ADDR:$RPC_PORT"$i" \
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--json-rpc.address=$IP_ADDR:$RPC_PORT"$i" --json-rpc.ws-address=$IP_ADDR:$WS_PORT"$i" \
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--json-rpc.api="eth,txpool,personal,net,debug,web3" \
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--keyring-backend test --home "$DATA_DIR$i" \
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>"$DATA_DIR"/node"$i".log 2>&1 & disown
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@ -158,12 +160,12 @@ if [[ -z $TEST || $TEST == "rpc" || $TEST == "pending" ]]; then
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for i in $(seq 1 "$TEST_QTD"); do
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HOST_RPC=http://$IP_ADDR:$RPC_PORT"$i"
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echo "going to test ethermint node $HOST_RPC ..."
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MODE=$MODE HOST=$HOST_RPC go test ./tests/rpc/... -timeout=$time_out -v -short
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HOST_WS=$IP_ADDR:$WS_PORT"$i"
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echo "going to test ethermint node rpc=$HOST_RPC ws=$HOST_WS ..."
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MODE=$MODE HOST=$HOST_RPC HOST_WS=$HOST_WS go test ./tests/rpc/... -timeout=$time_out -v -short
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TEST_FAIL=$?
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done
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fi
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stop_func() {
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174
tests/rpc/ws_test.go
Normal file
174
tests/rpc/ws_test.go
Normal file
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@ -0,0 +1,174 @@
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package rpc
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import (
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"encoding/json"
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"fmt"
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"github.com/gorilla/websocket"
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"github.com/stretchr/testify/require"
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"net/url"
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"os"
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"strings"
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"testing"
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"time"
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)
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var (
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HOST_WS = os.Getenv("HOST_WS")
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wsUrl string
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)
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func init() {
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if HOST_WS == "" {
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HOST_WS = "localhost:8542"
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}
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u := url.URL{Scheme: "ws", Host: HOST_WS, Path: ""}
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wsUrl = u.String()
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}
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func TestWsSingleRequest(t *testing.T) {
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t.Log("test simple rpc request net_version with Websocket")
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wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
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require.NoError(t, err)
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defer wc.Close()
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wsWriteMessage(t, wc, `{"jsonrpc":"2.0","method":"net_version","params":[],"id":1}`)
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time.Sleep(1 * time.Second)
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mb := readMessage(t, wc)
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msg := jsonUnmarshal(t, mb)
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result, ok := msg["result"].(string)
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require.True(t, ok)
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require.Equal(t, "9000", result)
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}
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func TestWsBatchRequest(t *testing.T) {
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t.Log("test batch request with Websocket")
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wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
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require.NoError(t, err)
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defer wc.Close()
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wsWriteMessage(t, wc, `[{"jsonrpc":"2.0","method":"net_version","params":[],"id":1},{"jsonrpc":"2.0","method":"eth_protocolVersion","params":[],"id":2}]`)
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time.Sleep(1 * time.Second)
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mb := readMessage(t, wc)
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var msg []map[string]interface{}
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err = json.Unmarshal(mb, &msg)
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require.NoError(t, err)
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require.Equal(t, 2, len(msg))
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// net_version
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resNetVersion := msg[0]
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result, ok := resNetVersion["result"].(string)
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require.True(t, ok)
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require.Equal(t, "9000", result)
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id, ok := resNetVersion["id"].(float64)
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require.True(t, ok)
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require.Equal(t, 1, int(id))
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// eth_protocolVersion
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resEthProtocolVersion := msg[1]
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result, ok = resEthProtocolVersion["result"].(string)
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require.True(t, ok)
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require.Equal(t, "0x41", result)
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id, ok = resEthProtocolVersion["id"].(float64)
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require.True(t, ok)
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require.Equal(t, 2, int(id))
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}
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func TestWsEth_subscribe_newHeads(t *testing.T) {
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t.Log("test eth_subscribe newHeads with Websocket")
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wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
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require.NoError(t, err)
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defer wc.Close()
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wsWriteMessage(t, wc, `{"id":1,"method":"eth_subscribe","params":["newHeads",{}]}`)
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time.Sleep(1 * time.Second)
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mb := readMessage(t, wc)
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msg := jsonUnmarshal(t, mb)
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subscribeId, ok := msg["result"].(string)
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require.True(t, ok)
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require.True(t, strings.HasPrefix(subscribeId, "0x"))
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time.Sleep(3 * time.Second)
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mb = readMessage(t, wc)
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msg = jsonUnmarshal(t, mb)
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method, ok := msg["method"].(string)
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require.Equal(t, "eth_subscription", method)
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// id should not exist with eth_subscription event
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_, ok = msg["id"].(float64)
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require.False(t, ok)
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wsUnsubscribe(t, wc, subscribeId) // eth_unsubscribe
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}
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func TestWsEth_subscribe_log(t *testing.T) {
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t.Log("test eth_subscribe log with websocket")
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wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
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require.NoError(t, err)
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defer wc.Close()
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wsWriteMessage(t, wc, fmt.Sprintf(`{"jsonrpc":"2.0","id":1,"method":"eth_subscribe","params":["logs",{"topics":["%s", "%s"]}]}`, helloTopic, worldTopic))
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time.Sleep(1 * time.Second)
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mb := readMessage(t, wc)
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msg := jsonUnmarshal(t, mb)
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subscribeId, ok := msg["result"].(string)
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require.True(t, ok)
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require.True(t, strings.HasPrefix(subscribeId, "0x"))
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// do something here to receive subscription messages
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deployTestContractWithFunction(t)
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time.Sleep(3 * time.Second)
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mb = readMessage(t, wc)
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msg = jsonUnmarshal(t, mb)
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method, ok := msg["method"].(string)
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require.Equal(t, "eth_subscription", method)
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// id should not exist with eth_subscription event
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_, ok = msg["id"].(float64)
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require.False(t, ok)
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wsUnsubscribe(t, wc, subscribeId) // eth_unsubscribe
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}
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func wsWriteMessage(t *testing.T, wc *websocket.Conn, jsonStr string) {
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t.Logf("send: %s", jsonStr)
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err := wc.WriteMessage(websocket.TextMessage, []byte(jsonStr))
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require.NoError(t, err)
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}
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func wsUnsubscribe(t *testing.T, wc *websocket.Conn, subscribeId string) {
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t.Logf("eth_unsubscribe %s", subscribeId)
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wsWriteMessage(t, wc, fmt.Sprintf(`{"id":1,"method":"eth_unsubscribe","params":["%s"]}`, subscribeId))
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time.Sleep(1 * time.Second)
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mb := readMessage(t, wc)
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msg := jsonUnmarshal(t, mb)
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result, ok := msg["result"].(bool)
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require.True(t, ok)
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require.True(t, result)
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}
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func readMessage(t *testing.T, wc *websocket.Conn) []byte {
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_, mb, err := wc.ReadMessage()
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require.NoError(t, err)
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t.Logf("recv: %s", mb)
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return mb
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}
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func jsonUnmarshal(t *testing.T, mb []byte) map[string]interface{} {
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var msg map[string]interface{}
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err := json.Unmarshal(mb, &msg)
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require.NoError(t, err)
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return msg
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}
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