cloudflared-mirror/websocket/websocket_test.go

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package websocket
import (
"crypto/tls"
"crypto/x509"
"io"
"math/rand"
"net/http"
"testing"
"github.com/cloudflare/cloudflared/hello"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/tlsconfig"
"github.com/stretchr/testify/assert"
"golang.org/x/net/websocket"
)
const (
// example in Sec-Websocket-Key in rfc6455
testSecWebsocketKey = "dGhlIHNhbXBsZSBub25jZQ=="
// example Sec-Websocket-Accept in rfc6455
testSecWebsocketAccept = "s3pPLMBiTxaQ9kYGzzhZRbK+xOo="
)
func testRequest(t *testing.T, url string, stream io.ReadWriter) *http.Request {
req, err := http.NewRequest("GET", url, stream)
if err != nil {
t.Fatalf("testRequestHeader error")
}
req.Header.Add("Connection", "Upgrade")
req.Header.Add("Upgrade", "WebSocket")
req.Header.Add("Sec-Websocket-Key", testSecWebsocketKey)
req.Header.Add("Sec-Websocket-Protocol", "tunnel-protocol")
req.Header.Add("Sec-Websocket-Version", "13")
req.Header.Add("User-Agent", "curl/7.59.0")
return req
}
func websocketClientTLSConfig(t *testing.T) *tls.Config {
certPool := x509.NewCertPool()
helloCert, err := tlsconfig.GetHelloCertificateX509()
assert.NoError(t, err)
certPool.AddCert(helloCert)
assert.NotNil(t, certPool)
return &tls.Config{RootCAs: certPool}
}
func TestWebsocketHeaders(t *testing.T) {
req := testRequest(t, "http://example.com", nil)
wsHeaders := websocketHeaders(req)
for _, header := range stripWebsocketHeaders {
assert.Empty(t, wsHeaders[header])
}
assert.Equal(t, "curl/7.59.0", wsHeaders.Get("User-Agent"))
}
func TestGenerateAcceptKey(t *testing.T) {
req := testRequest(t, "http://example.com", nil)
assert.Equal(t, testSecWebsocketAccept, generateAcceptKey(req))
}
func TestServe(t *testing.T) {
logger := logger.NewOutputWriter(logger.NewMockWriteManager())
shutdownC := make(chan struct{})
errC := make(chan error)
listener, err := hello.CreateTLSListener("localhost:1111")
assert.NoError(t, err)
defer listener.Close()
go func() {
errC <- hello.StartHelloWorldServer(logger, listener, shutdownC)
}()
req := testRequest(t, "https://localhost:1111/ws", nil)
tlsConfig := websocketClientTLSConfig(t)
assert.NotNil(t, tlsConfig)
d := defaultDialler{tlsConfig: tlsConfig}
conn, resp, err := ClientConnect(req, &d)
assert.NoError(t, err)
assert.Equal(t, testSecWebsocketAccept, resp.Header.Get("Sec-WebSocket-Accept"))
for i := 0; i < 1000; i++ {
messageSize := rand.Int()%2048 + 1
clientMessage := make([]byte, messageSize)
// rand.Read always returns len(clientMessage) and a nil error
rand.Read(clientMessage)
err = conn.WriteMessage(websocket.BinaryFrame, clientMessage)
assert.NoError(t, err)
messageType, message, err := conn.ReadMessage()
assert.NoError(t, err)
assert.Equal(t, websocket.BinaryFrame, messageType)
assert.Equal(t, clientMessage, message)
}
conn.Close()
close(shutdownC)
<-errC
}
// func TestStartProxyServer(t *testing.T) {
// var wg sync.WaitGroup
// remoteAddress := "localhost:1113"
// listenerAddress := "localhost:1112"
// message := "Good morning Austin! Time for another sunny day in the great state of Texas."
// logger := logger.NewOutputWriter(logger.NewMockWriteManager())
// shutdownC := make(chan struct{})
// listener, err := net.Listen("tcp", listenerAddress)
// assert.NoError(t, err)
// defer listener.Close()
// remoteListener, err := net.Listen("tcp", remoteAddress)
// assert.NoError(t, err)
// defer remoteListener.Close()
// wg.Add(1)
// go func() {
// defer wg.Done()
// conn, err := remoteListener.Accept()
// assert.NoError(t, err)
// buf := make([]byte, len(message))
// conn.Read(buf)
// assert.Equal(t, string(buf), message)
// }()
// go func() {
// StartProxyServer(logger, listener, remoteAddress, shutdownC)
// }()
// req := testRequest(t, fmt.Sprintf("http://%s/", listenerAddress), nil)
// conn, _, err := ClientConnect(req, nil)
// assert.NoError(t, err)
// err = conn.WriteMessage(1, []byte(message))
// assert.NoError(t, err)
// wg.Wait()
// }