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Merge pull request #925 from nspcc-dev/rpc-over-websocket

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RPC over websocket
This commit is contained in:
Roman Khimov 2020-05-06 12:52:58 +03:00 • committed by GitHub
commit b04c8623c5
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10 changed files with 543 additions and 255 deletions
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63
pkg/rpc/server/server_test.go
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@ -13,6 +13,7 @@ import (
"testing"
"time"
"github.com/gorilla/websocket"
"github.com/nspcc-dev/neo-go/pkg/core"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
@ -31,7 +32,7 @@ import (
type executor struct {
chain *core.Blockchain
handler http.HandlerFunc
httpSrv *httptest.Server
}
const (
@ -813,18 +814,31 @@ var rpcTestCases = map[string][]rpcTestCase{
}
func TestRPC(t *testing.T) {
chain, handler := initServerWithInMemoryChain(t)
t.Run("http", func(t *testing.T) {
testRPCProtocol(t, doRPCCallOverHTTP)
})
t.Run("websocket", func(t *testing.T) {
testRPCProtocol(t, doRPCCallOverWS)
})
}
// testRPCProtocol runs a full set of tests using given callback to make actual
// calls. Some tests change the chain state, thus we reinitialize the chain from
// scratch here.
func testRPCProtocol(t *testing.T, doRPCCall func(string, string, *testing.T) []byte) {
chain, httpSrv := initServerWithInMemoryChain(t)
defer chain.Close()
e := &executor{chain: chain, handler: handler}
e := &executor{chain: chain, httpSrv: httpSrv}
for method, cases := range rpcTestCases {
t.Run(method, func(t *testing.T) {
rpc := `{"jsonrpc": "2.0", "id": 1, "method": "%s", "params": %s}`
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
body := doRPCCall(fmt.Sprintf(rpc, method, tc.params), handler, t)
body := doRPCCall(fmt.Sprintf(rpc, method, tc.params), httpSrv.URL, t)
result := checkErrGetResult(t, body, tc.fail)
if tc.fail {
return
@ -848,7 +862,7 @@ func TestRPC(t *testing.T) {
rpc := `{"jsonrpc": "2.0", "id": 1, "method": "submitblock", "params": ["%s"]}`
t.Run("empty", func(t *testing.T) {
s := newBlock(t, chain, 1)
body := doRPCCall(fmt.Sprintf(rpc, s), handler, t)
body := doRPCCall(fmt.Sprintf(rpc, encodeBlock(t, s)), httpSrv.URL, t)
checkErrGetResult(t, body, true)
})
@ -867,13 +881,13 @@ func TestRPC(t *testing.T) {
t.Run("invalid height", func(t *testing.T) {
b := newBlock(t, chain, 2, newTx())
body := doRPCCall(fmt.Sprintf(rpc, encodeBlock(t, b)), handler, t)
body := doRPCCall(fmt.Sprintf(rpc, encodeBlock(t, b)), httpSrv.URL, t)
checkErrGetResult(t, body, true)
})
t.Run("positive", func(t *testing.T) {
b := newBlock(t, chain, 1, newTx())
body := doRPCCall(fmt.Sprintf(rpc, encodeBlock(t, b)), handler, t)
body := doRPCCall(fmt.Sprintf(rpc, encodeBlock(t, b)), httpSrv.URL, t)
data := checkErrGetResult(t, body, false)
var res bool
require.NoError(t, json.Unmarshal(data, &res))
@ -885,7 +899,7 @@ func TestRPC(t *testing.T) {
block, _ := chain.GetBlock(chain.GetHeaderHash(0))
TXHash := block.Transactions[0].Hash()
rpc := fmt.Sprintf(`{"jsonrpc": "2.0", "id": 1, "method": "getrawtransaction", "params": ["%s"]}"`, TXHash.StringLE())
body := doRPCCall(rpc, handler, t)
body := doRPCCall(rpc, httpSrv.URL, t)
result := checkErrGetResult(t, body, false)
var res string
err := json.Unmarshal(result, &res)
@ -897,7 +911,7 @@ func TestRPC(t *testing.T) {
block, _ := chain.GetBlock(chain.GetHeaderHash(0))
TXHash := block.Transactions[0].Hash()
rpc := fmt.Sprintf(`{"jsonrpc": "2.0", "id": 1, "method": "getrawtransaction", "params": ["%s", 0]}"`, TXHash.StringLE())
body := doRPCCall(rpc, handler, t)
body := doRPCCall(rpc, httpSrv.URL, t)
result := checkErrGetResult(t, body, false)
var res string
err := json.Unmarshal(result, &res)
@ -909,7 +923,7 @@ func TestRPC(t *testing.T) {
block, _ := chain.GetBlock(chain.GetHeaderHash(0))
TXHash := block.Transactions[0].Hash()
rpc := fmt.Sprintf(`{"jsonrpc": "2.0", "id": 1, "method": "getrawtransaction", "params": ["%s", 1]}"`, TXHash.StringLE())
body := doRPCCall(rpc, handler, t)
body := doRPCCall(rpc, httpSrv.URL, t)
txOut := checkErrGetResult(t, body, false)
actual := result.TransactionOutputRaw{}
err := json.Unmarshal(txOut, &actual)
@ -936,7 +950,7 @@ func TestRPC(t *testing.T) {
hdr := e.getHeader(testHeaderHash)
runCase := func(t *testing.T, rpc string, expected, actual interface{}) {
body := doRPCCall(rpc, handler, t)
body := doRPCCall(rpc, httpSrv.URL, t)
data := checkErrGetResult(t, body, false)
require.NoError(t, json.Unmarshal(data, actual))
require.Equal(t, expected, actual)
@ -984,7 +998,7 @@ func TestRPC(t *testing.T) {
tx := block.Transactions[2]
rpc := fmt.Sprintf(`{"jsonrpc": "2.0", "id": 1, "method": "gettxout", "params": [%s, %d]}"`,
`"`+tx.Hash().StringLE()+`"`, 0)
body := doRPCCall(rpc, handler, t)
body := doRPCCall(rpc, httpSrv.URL, t)
res := checkErrGetResult(t, body, false)
var txOut result.TransactionOutput
@ -1010,7 +1024,7 @@ func TestRPC(t *testing.T) {
}
rpc := `{"jsonrpc": "2.0", "id": 1, "method": "getrawmempool", "params": []}`
body := doRPCCall(rpc, handler, t)
body := doRPCCall(rpc, httpSrv.URL, t)
res := checkErrGetResult(t, body, false)
var actual []util.Uint256
@ -1085,12 +1099,23 @@ func checkErrGetResult(t *testing.T, body []byte, expectingFail bool) json.RawMe
return resp.Result
}
func doRPCCall(rpcCall string, handler http.HandlerFunc, t *testing.T) []byte {
req := httptest.NewRequest("POST", "http://0.0.0.0:20333/", strings.NewReader(rpcCall))
req.Header.Set("Content-Type", "application/json")
w := httptest.NewRecorder()
handler(w, req)
resp := w.Result()
func doRPCCallOverWS(rpcCall string, url string, t *testing.T) []byte {
dialer := websocket.Dialer{HandshakeTimeout: time.Second}
url = "ws" + strings.TrimPrefix(url, "http")
c, _, err := dialer.Dial(url+"/ws", nil)
require.NoError(t, err)
c.SetWriteDeadline(time.Now().Add(time.Second))
require.NoError(t, c.WriteMessage(1, []byte(rpcCall)))
c.SetReadDeadline(time.Now().Add(time.Second))
_, body, err := c.ReadMessage()
require.NoError(t, err)
return bytes.TrimSpace(body)
}
func doRPCCallOverHTTP(rpcCall string, url string, t *testing.T) []byte {
cl := http.Client{Timeout: time.Second}
resp, err := cl.Post(url, "application/json", strings.NewReader(rpcCall))
require.NoErrorf(t, err, "could not make a POST request")
body, err := ioutil.ReadAll(resp.Body)
assert.NoErrorf(t, err, "could not read response from the request: %s", rpcCall)
return bytes.TrimSpace(body)