cloudflare/cloudflared
Publicmirrored from https://github.com/cloudflare/cloudflaredAvailable
carrier/websocket_test.go
123lines · modecode
| 1 | package carrier |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "crypto/tls" |
| 6 | "crypto/x509" |
| 7 | "fmt" |
| 8 | "math/rand" |
| 9 | "testing" |
| 10 | "time" |
| 11 | |
| 12 | gws "github.com/gorilla/websocket" |
| 13 | "github.com/rs/zerolog" |
| 14 | "github.com/stretchr/testify/assert" |
| 15 | "github.com/stretchr/testify/require" |
| 16 | "golang.org/x/net/websocket" |
| 17 | |
| 18 | "github.com/cloudflare/cloudflared/hello" |
| 19 | "github.com/cloudflare/cloudflared/tlsconfig" |
| 20 | cfwebsocket "github.com/cloudflare/cloudflared/websocket" |
| 21 | ) |
| 22 | |
| 23 | func websocketClientTLSConfig(t *testing.T) *tls.Config { |
| 24 | certPool := x509.NewCertPool() |
| 25 | helloCert, err := tlsconfig.GetHelloCertificateX509() |
| 26 | assert.NoError(t, err) |
| 27 | certPool.AddCert(helloCert) |
| 28 | assert.NotNil(t, certPool) |
| 29 | return &tls.Config{RootCAs: certPool} |
| 30 | } |
| 31 | |
| 32 | func TestWebsocketHeaders(t *testing.T) { |
| 33 | req := testRequest(t, "http://example.com", nil) |
| 34 | wsHeaders := websocketHeaders(req) |
| 35 | for _, header := range stripWebsocketHeaders { |
| 36 | assert.Empty(t, wsHeaders[header]) |
| 37 | } |
| 38 | assert.Equal(t, "curl/7.59.0", wsHeaders.Get("User-Agent")) |
| 39 | } |
| 40 | |
| 41 | func TestServe(t *testing.T) { |
| 42 | log := zerolog.Nop() |
| 43 | shutdownC := make(chan struct{}) |
| 44 | errC := make(chan error) |
| 45 | listener, err := hello.CreateTLSListener("localhost:1111") |
| 46 | assert.NoError(t, err) |
| 47 | defer listener.Close() |
| 48 | |
| 49 | go func() { |
| 50 | errC <- hello.StartHelloWorldServer(&log, listener, shutdownC) |
| 51 | }() |
| 52 | |
| 53 | req := testRequest(t, "https://localhost:1111/ws", nil) |
| 54 | |
| 55 | tlsConfig := websocketClientTLSConfig(t) |
| 56 | assert.NotNil(t, tlsConfig) |
| 57 | d := gws.Dialer{TLSClientConfig: tlsConfig} |
| 58 | conn, resp, err := clientConnect(req, &d) |
| 59 | assert.NoError(t, err) |
| 60 | assert.Equal(t, "websocket", resp.Header.Get("Upgrade")) |
| 61 | |
| 62 | for i := 0; i < 1000; i++ { |
| 63 | messageSize := rand.Int()%2048 + 1 |
| 64 | clientMessage := make([]byte, messageSize) |
| 65 | // rand.Read always returns len(clientMessage) and a nil error |
| 66 | rand.Read(clientMessage) |
| 67 | err = conn.WriteMessage(websocket.BinaryFrame, clientMessage) |
| 68 | assert.NoError(t, err) |
| 69 | |
| 70 | messageType, message, err := conn.ReadMessage() |
| 71 | assert.NoError(t, err) |
| 72 | assert.Equal(t, websocket.BinaryFrame, messageType) |
| 73 | assert.Equal(t, clientMessage, message) |
| 74 | } |
| 75 | |
| 76 | _ = conn.Close() |
| 77 | close(shutdownC) |
| 78 | <-errC |
| 79 | } |
| 80 | |
| 81 | func TestWebsocketWrapper(t *testing.T) { |
| 82 | listener, err := hello.CreateTLSListener("localhost:0") |
| 83 | require.NoError(t, err) |
| 84 | |
| 85 | serverErrorChan := make(chan error) |
| 86 | helloSvrCtx, cancelHelloSvr := context.WithCancel(context.Background()) |
| 87 | defer func() { <-serverErrorChan }() |
| 88 | defer cancelHelloSvr() |
| 89 | go func() { |
| 90 | log := zerolog.Nop() |
| 91 | serverErrorChan <- hello.StartHelloWorldServer(&log, listener, helloSvrCtx.Done()) |
| 92 | }() |
| 93 | |
| 94 | tlsConfig := websocketClientTLSConfig(t) |
| 95 | d := gws.Dialer{TLSClientConfig: tlsConfig, HandshakeTimeout: time.Minute} |
| 96 | testAddr := fmt.Sprintf("https://%s/ws", listener.Addr().String()) |
| 97 | req := testRequest(t, testAddr, nil) |
| 98 | conn, resp, err := clientConnect(req, &d) |
| 99 | require.NoError(t, err) |
| 100 | assert.Equal(t, "websocket", resp.Header.Get("Upgrade")) |
| 101 | |
| 102 | // Websocket now connected to test server so lets check our wrapper |
| 103 | wrapper := cfwebsocket.GorillaConn{Conn: conn} |
| 104 | buf := make([]byte, 100) |
| 105 | wrapper.Write([]byte("abc")) |
| 106 | n, err := wrapper.Read(buf) |
| 107 | require.NoError(t, err) |
| 108 | require.Equal(t, n, 3) |
| 109 | require.Equal(t, "abc", string(buf[:n])) |
| 110 | |
| 111 | // Test partial read, read 1 of 3 bytes in one read and the other 2 in another read |
| 112 | wrapper.Write([]byte("abc")) |
| 113 | buf = buf[:1] |
| 114 | n, err = wrapper.Read(buf) |
| 115 | require.NoError(t, err) |
| 116 | require.Equal(t, n, 1) |
| 117 | require.Equal(t, "a", string(buf[:n])) |
| 118 | buf = buf[:cap(buf)] |
| 119 | n, err = wrapper.Read(buf) |
| 120 | require.NoError(t, err) |
| 121 | require.Equal(t, n, 2) |
| 122 | require.Equal(t, "bc", string(buf[:n])) |
| 123 | } |
| 124 | |