mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-27 13:58:05 +00:00
436 lines
14 KiB
Go
436 lines
14 KiB
Go
package server
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import (
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"encoding/json"
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"fmt"
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"strings"
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"testing"
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"time"
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"github.com/gorilla/websocket"
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"github.com/nspcc-dev/neo-go/pkg/core"
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"github.com/nspcc-dev/neo-go/pkg/encoding/address"
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"github.com/nspcc-dev/neo-go/pkg/internal/testchain"
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"github.com/nspcc-dev/neo-go/pkg/rpc/response"
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"github.com/stretchr/testify/require"
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"go.uber.org/atomic"
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)
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func wsReader(t *testing.T, ws *websocket.Conn, msgCh chan<- []byte, isFinished *atomic.Bool) {
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for {
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ws.SetReadDeadline(time.Now().Add(time.Second))
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_, body, err := ws.ReadMessage()
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if isFinished.Load() {
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require.Error(t, err)
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break
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}
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require.NoError(t, err)
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msgCh <- body
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}
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}
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func callWSGetRaw(t *testing.T, ws *websocket.Conn, msg string, respCh <-chan []byte) *response.Raw {
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var resp = new(response.Raw)
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ws.SetWriteDeadline(time.Now().Add(time.Second))
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require.NoError(t, ws.WriteMessage(websocket.TextMessage, []byte(msg)))
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body := <-respCh
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require.NoError(t, json.Unmarshal(body, resp))
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return resp
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}
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func getNotification(t *testing.T, respCh <-chan []byte) *response.Notification {
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var resp = new(response.Notification)
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body := <-respCh
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require.NoError(t, json.Unmarshal(body, resp))
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return resp
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}
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func initCleanServerAndWSClient(t *testing.T) (*core.Blockchain, *Server, *websocket.Conn, chan []byte, *atomic.Bool) {
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chain, rpcSrv, httpSrv := initClearServerWithInMemoryChain(t)
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dialer := websocket.Dialer{HandshakeTimeout: time.Second}
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url := "ws" + strings.TrimPrefix(httpSrv.URL, "http") + "/ws"
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ws, _, err := dialer.Dial(url, nil)
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require.NoError(t, err)
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// Use buffered channel to read server's messages and then read expected
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// responses from it.
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respMsgs := make(chan []byte, 16)
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finishedFlag := atomic.NewBool(false)
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go wsReader(t, ws, respMsgs, finishedFlag)
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return chain, rpcSrv, ws, respMsgs, finishedFlag
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}
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func callSubscribe(t *testing.T, ws *websocket.Conn, msgs <-chan []byte, params string) string {
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var s string
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resp := callWSGetRaw(t, ws, fmt.Sprintf(`{"jsonrpc": "2.0","method": "subscribe","params": %s,"id": 1}`, params), msgs)
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require.Nil(t, resp.Error)
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require.NotNil(t, resp.Result)
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require.NoError(t, json.Unmarshal(resp.Result, &s))
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return s
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}
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func callUnsubscribe(t *testing.T, ws *websocket.Conn, msgs <-chan []byte, id string) {
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var b bool
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resp := callWSGetRaw(t, ws, fmt.Sprintf(`{"jsonrpc": "2.0","method": "unsubscribe","params": ["%s"],"id": 1}`, id), msgs)
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require.Nil(t, resp.Error)
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require.NotNil(t, resp.Result)
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require.NoError(t, json.Unmarshal(resp.Result, &b))
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require.Equal(t, true, b)
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}
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func TestSubscriptions(t *testing.T) {
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var subIDs = make([]string, 0)
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var subFeeds = []string{"block_added", "transaction_added", "notification_from_execution", "transaction_executed"}
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chain, rpcSrv, c, respMsgs, finishedFlag := initCleanServerAndWSClient(t)
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defer chain.Close()
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defer rpcSrv.Shutdown()
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for _, feed := range subFeeds {
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s := callSubscribe(t, c, respMsgs, fmt.Sprintf(`["%s"]`, feed))
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subIDs = append(subIDs, s)
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}
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for _, b := range getTestBlocks(t) {
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require.NoError(t, chain.AddBlock(b))
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resp := getNotification(t, respMsgs)
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require.Equal(t, response.ExecutionEventID, resp.Event)
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for {
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resp := getNotification(t, respMsgs)
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if resp.Event != response.NotificationEventID {
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break
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}
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}
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for i := 0; i < len(b.Transactions); i++ {
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if i > 0 {
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resp = getNotification(t, respMsgs)
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}
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require.Equal(t, response.ExecutionEventID, resp.Event)
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for {
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resp := getNotification(t, respMsgs)
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if resp.Event == response.NotificationEventID {
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continue
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}
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require.Equal(t, response.TransactionEventID, resp.Event)
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break
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}
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}
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resp = getNotification(t, respMsgs)
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require.Equal(t, response.BlockEventID, resp.Event)
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}
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for _, id := range subIDs {
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callUnsubscribe(t, c, respMsgs, id)
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}
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finishedFlag.CAS(false, true)
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c.Close()
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}
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func TestFilteredSubscriptions(t *testing.T) {
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priv0 := testchain.PrivateKeyByID(0)
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var goodSender = priv0.GetScriptHash()
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var cases = map[string]struct {
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params string
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check func(*testing.T, *response.Notification)
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}{
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"tx matching sender": {
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params: `["transaction_added", {"sender":"` + goodSender.StringLE() + `"}]`,
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check: func(t *testing.T, resp *response.Notification) {
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rmap := resp.Payload[0].(map[string]interface{})
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require.Equal(t, response.TransactionEventID, resp.Event)
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sender := rmap["sender"].(string)
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require.Equal(t, address.Uint160ToString(goodSender), sender)
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},
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},
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"tx matching cosigner": {
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params: `["transaction_added", {"cosigner":"` + goodSender.StringLE() + `"}]`,
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check: func(t *testing.T, resp *response.Notification) {
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rmap := resp.Payload[0].(map[string]interface{})
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require.Equal(t, response.TransactionEventID, resp.Event)
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cosigners := rmap["cosigners"].([]interface{})
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cosigner0 := cosigners[0].(map[string]interface{})
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cosigner0acc := cosigner0["account"].(string)
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require.Equal(t, "0x"+goodSender.StringLE(), cosigner0acc)
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},
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},
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"tx matching sender and cosigner": {
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params: `["transaction_added", {"sender":"` + goodSender.StringLE() + `", "cosigner":"` + goodSender.StringLE() + `"}]`,
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check: func(t *testing.T, resp *response.Notification) {
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rmap := resp.Payload[0].(map[string]interface{})
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require.Equal(t, response.TransactionEventID, resp.Event)
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sender := rmap["sender"].(string)
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require.Equal(t, address.Uint160ToString(goodSender), sender)
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cosigners := rmap["cosigners"].([]interface{})
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cosigner0 := cosigners[0].(map[string]interface{})
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cosigner0acc := cosigner0["account"].(string)
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require.Equal(t, "0x"+goodSender.StringLE(), cosigner0acc)
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},
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},
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"notification matching": {
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params: `["notification_from_execution", {"contract":"` + testContractHash + `"}]`,
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check: func(t *testing.T, resp *response.Notification) {
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rmap := resp.Payload[0].(map[string]interface{})
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require.Equal(t, response.NotificationEventID, resp.Event)
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c := rmap["contract"].(string)
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require.Equal(t, "0x"+testContractHash, c)
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},
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},
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"execution matching": {
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params: `["transaction_executed", {"state":"HALT"}]`,
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check: func(t *testing.T, resp *response.Notification) {
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rmap := resp.Payload[0].(map[string]interface{})
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require.Equal(t, response.ExecutionEventID, resp.Event)
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st := rmap["vmstate"].(string)
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require.Equal(t, "HALT", st)
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},
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},
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"tx non-matching": {
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params: `["transaction_added", {"sender":"00112233445566778899aabbccddeeff00112233"}]`,
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check: func(t *testing.T, _ *response.Notification) {
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t.Fatal("unexpected match for EnrollmentTransaction")
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},
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},
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"notification non-matching": {
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params: `["notification_from_execution", {"contract":"00112233445566778899aabbccddeeff00112233"}]`,
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check: func(t *testing.T, _ *response.Notification) {
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t.Fatal("unexpected match for contract 00112233445566778899aabbccddeeff00112233")
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},
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},
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"execution non-matching": {
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params: `["transaction_executed", {"state":"FAULT"}]`,
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check: func(t *testing.T, _ *response.Notification) {
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t.Fatal("unexpected match for faulted execution")
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},
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},
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}
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for name, this := range cases {
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t.Run(name, func(t *testing.T) {
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chain, rpcSrv, c, respMsgs, finishedFlag := initCleanServerAndWSClient(t)
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defer chain.Close()
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defer rpcSrv.Shutdown()
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// It's used as an end-of-event-stream, so it's always present.
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blockSubID := callSubscribe(t, c, respMsgs, `["block_added"]`)
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subID := callSubscribe(t, c, respMsgs, this.params)
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var lastBlock uint32
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for _, b := range getTestBlocks(t) {
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require.NoError(t, chain.AddBlock(b))
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lastBlock = b.Index
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}
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for {
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resp := getNotification(t, respMsgs)
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rmap := resp.Payload[0].(map[string]interface{})
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if resp.Event == response.BlockEventID {
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index := rmap["index"].(float64)
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if uint32(index) == lastBlock {
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break
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}
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continue
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}
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this.check(t, resp)
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}
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callUnsubscribe(t, c, respMsgs, subID)
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callUnsubscribe(t, c, respMsgs, blockSubID)
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finishedFlag.CAS(false, true)
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c.Close()
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})
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}
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}
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func TestFilteredBlockSubscriptions(t *testing.T) {
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// We can't fit this into TestFilteredSubscriptions, because it uses
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// blocks as EOF events to wait for.
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const numBlocks = 10
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chain, rpcSrv, c, respMsgs, finishedFlag := initCleanServerAndWSClient(t)
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defer chain.Close()
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defer rpcSrv.Shutdown()
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blockSubID := callSubscribe(t, c, respMsgs, `["block_added", {"primary":3}]`)
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var expectedCnt int
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for i := 0; i < numBlocks; i++ {
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primary := uint32(i % 4)
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if primary == 3 {
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expectedCnt++
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}
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b := newBlock(t, chain, 1, primary)
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require.NoError(t, chain.AddBlock(b))
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}
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for i := 0; i < expectedCnt; i++ {
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var resp = new(response.Notification)
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select {
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case body := <-respMsgs:
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require.NoError(t, json.Unmarshal(body, resp))
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case <-time.After(time.Second):
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t.Fatal("timeout waiting for event")
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}
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require.Equal(t, response.BlockEventID, resp.Event)
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rmap := resp.Payload[0].(map[string]interface{})
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cd := rmap["consensus_data"].(map[string]interface{})
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primary := cd["primary"].(float64)
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require.Equal(t, 3, int(primary))
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}
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callUnsubscribe(t, c, respMsgs, blockSubID)
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finishedFlag.CAS(false, true)
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c.Close()
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}
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func TestMaxSubscriptions(t *testing.T) {
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var subIDs = make([]string, 0)
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chain, rpcSrv, c, respMsgs, finishedFlag := initCleanServerAndWSClient(t)
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defer chain.Close()
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defer rpcSrv.Shutdown()
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for i := 0; i < maxFeeds+1; i++ {
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var s string
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resp := callWSGetRaw(t, c, `{"jsonrpc": "2.0", "method": "subscribe", "params": ["block_added"], "id": 1}`, respMsgs)
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if i < maxFeeds {
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require.Nil(t, resp.Error)
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require.NotNil(t, resp.Result)
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require.NoError(t, json.Unmarshal(resp.Result, &s))
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// Each ID must be unique.
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for _, id := range subIDs {
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require.NotEqual(t, id, s)
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}
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subIDs = append(subIDs, s)
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} else {
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require.NotNil(t, resp.Error)
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require.Nil(t, resp.Result)
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}
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}
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finishedFlag.CAS(false, true)
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c.Close()
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}
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func TestBadSubUnsub(t *testing.T) {
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var subCases = map[string]string{
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"no params": `{"jsonrpc": "2.0", "method": "subscribe", "params": [], "id": 1}`,
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"bad (non-string) event": `{"jsonrpc": "2.0", "method": "subscribe", "params": [1], "id": 1}`,
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"bad (wrong) event": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["block_removed"], "id": 1}`,
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"missed event": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["event_missed"], "id": 1}`,
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"block invalid filter": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["block_added", 1], "id": 1}`,
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"tx filter 1": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["transaction_added", 1], "id": 1}`,
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"tx filter 2": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["transaction_added", {"state": "HALT"}], "id": 1}`,
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"notification filter": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["notification_from_execution", "contract"], "id": 1}`,
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"execution filter 1": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["transaction_executed", "FAULT"], "id": 1}`,
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"execution filter 2": `{"jsonrpc": "2.0", "method": "subscribe", "params": ["transaction_executed", {"state": "STOP"}], "id": 1}`,
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}
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var unsubCases = map[string]string{
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"no params": `{"jsonrpc": "2.0", "method": "unsubscribe", "params": [], "id": 1}`,
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"bad id": `{"jsonrpc": "2.0", "method": "unsubscribe", "params": ["vasiliy"], "id": 1}`,
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"not subscribed id": `{"jsonrpc": "2.0", "method": "unsubscribe", "params": ["7"], "id": 1}`,
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}
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chain, rpcSrv, c, respMsgs, finishedFlag := initCleanServerAndWSClient(t)
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defer chain.Close()
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defer rpcSrv.Shutdown()
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testF := func(t *testing.T, cases map[string]string) func(t *testing.T) {
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return func(t *testing.T) {
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for n, s := range cases {
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t.Run(n, func(t *testing.T) {
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resp := callWSGetRaw(t, c, s, respMsgs)
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require.NotNil(t, resp.Error)
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require.Nil(t, resp.Result)
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})
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}
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}
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}
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t.Run("subscribe", testF(t, subCases))
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t.Run("unsubscribe", testF(t, unsubCases))
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finishedFlag.CAS(false, true)
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c.Close()
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}
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func doSomeWSRequest(t *testing.T, ws *websocket.Conn) {
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ws.SetWriteDeadline(time.Now().Add(time.Second))
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// It could be just about anything including invalid request,
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// we only care about server handling being active.
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require.NoError(t, ws.WriteMessage(websocket.TextMessage, []byte(`{"jsonrpc": "2.0", "method": "getversion", "params": [], "id": 1}`)))
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ws.SetReadDeadline(time.Now().Add(time.Second))
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_, _, err := ws.ReadMessage()
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require.NoError(t, err)
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}
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func TestWSClientsLimit(t *testing.T) {
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chain, rpcSrv, httpSrv := initClearServerWithInMemoryChain(t)
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defer chain.Close()
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defer rpcSrv.Shutdown()
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dialer := websocket.Dialer{HandshakeTimeout: time.Second}
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url := "ws" + strings.TrimPrefix(httpSrv.URL, "http") + "/ws"
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wss := make([]*websocket.Conn, maxSubscribers)
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for i := 0; i < len(wss)+1; i++ {
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ws, _, err := dialer.Dial(url, nil)
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if i < maxSubscribers {
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require.NoError(t, err)
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wss[i] = ws
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// Check that it's completely ready.
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doSomeWSRequest(t, ws)
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} else {
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require.Error(t, err)
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}
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}
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// Check connections are still alive (it actually is necessary to add
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// some use of wss to keep connections alive).
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for i := 0; i < len(wss); i++ {
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doSomeWSRequest(t, wss[i])
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}
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}
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// The purpose of this test is to overflow buffers on server side to
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// receive a 'missed' event. But it's actually hard to tell when exactly
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// that's going to happen because of network-level buffering, typical
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// number seen in tests is around ~3500 events, but it's not reliable enough,
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// thus this test is disabled.
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func testSubscriptionOverflow(t *testing.T) {
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const blockCnt = notificationBufSize * 5
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var receivedMiss bool
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chain, rpcSrv, c, respMsgs, finishedFlag := initCleanServerAndWSClient(t)
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defer chain.Close()
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defer rpcSrv.Shutdown()
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resp := callWSGetRaw(t, c, `{"jsonrpc": "2.0","method": "subscribe","params": ["block_added"],"id": 1}`, respMsgs)
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require.Nil(t, resp.Error)
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require.NotNil(t, resp.Result)
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// Push a lot of new blocks, but don't read events for them.
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for i := 0; i < blockCnt; i++ {
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b := newBlock(t, chain, 1, 0)
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require.NoError(t, chain.AddBlock(b))
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}
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for i := 0; i < blockCnt; i++ {
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resp := getNotification(t, respMsgs)
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if resp.Event != response.BlockEventID {
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require.Equal(t, response.MissedEventID, resp.Event)
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receivedMiss = true
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break
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}
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}
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require.Equal(t, true, receivedMiss)
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// `Missed` is the last event and there is nothing afterwards.
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require.Equal(t, 0, len(respMsgs))
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finishedFlag.CAS(false, true)
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c.Close()
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}
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