|
| 1 | +package quic |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "crypto/tls" |
| 6 | + "io" |
| 7 | + "net" |
| 8 | + "sync" |
| 9 | + "testing" |
| 10 | + |
| 11 | + "github.com/lucas-clemente/quic-go" |
| 12 | + "github.com/stretchr/testify/require" |
| 13 | +) |
| 14 | + |
| 15 | +var ( |
| 16 | + testTLSServerConfig = GenerateTLSConfig() |
| 17 | + testQUICConfig = &quic.Config{ |
| 18 | + KeepAlive: true, |
| 19 | + EnableDatagrams: true, |
| 20 | + } |
| 21 | + exchanges = 1000 |
| 22 | + msgsPerExchange = 10 |
| 23 | + testMsg = "Ok message" |
| 24 | +) |
| 25 | + |
| 26 | +func TestSafeStreamClose(t *testing.T) { |
| 27 | + udpAddr, err := net.ResolveUDPAddr("udp", "127.0.0.1:0") |
| 28 | + require.NoError(t, err) |
| 29 | + udpListener, err := net.ListenUDP(udpAddr.Network(), udpAddr) |
| 30 | + require.NoError(t, err) |
| 31 | + defer udpListener.Close() |
| 32 | + |
| 33 | + var serverReady sync.WaitGroup |
| 34 | + serverReady.Add(1) |
| 35 | + |
| 36 | + var done sync.WaitGroup |
| 37 | + done.Add(1) |
| 38 | + go func() { |
| 39 | + defer done.Done() |
| 40 | + quicServer(t, &serverReady, udpListener) |
| 41 | + }() |
| 42 | + |
| 43 | + done.Add(1) |
| 44 | + go func() { |
| 45 | + serverReady.Wait() |
| 46 | + defer done.Done() |
| 47 | + quicClient(t, udpListener.LocalAddr()) |
| 48 | + }() |
| 49 | + |
| 50 | + done.Wait() |
| 51 | +} |
| 52 | + |
| 53 | +func quicClient(t *testing.T, addr net.Addr) { |
| 54 | + tlsConf := &tls.Config{ |
| 55 | + InsecureSkipVerify: true, |
| 56 | + NextProtos: []string{"argotunnel"}, |
| 57 | + } |
| 58 | + session, err := quic.DialAddr(addr.String(), tlsConf, testQUICConfig) |
| 59 | + require.NoError(t, err) |
| 60 | + |
| 61 | + var wg sync.WaitGroup |
| 62 | + for exchange := 0; exchange < exchanges; exchange++ { |
| 63 | + quicStream, err := session.AcceptStream(context.Background()) |
| 64 | + require.NoError(t, err) |
| 65 | + wg.Add(1) |
| 66 | + |
| 67 | + go func(iter int) { |
| 68 | + defer wg.Done() |
| 69 | + |
| 70 | + stream := NewSafeStreamCloser(quicStream) |
| 71 | + defer stream.Close() |
| 72 | + |
| 73 | + // Do a bunch of round trips over this stream that should work. |
| 74 | + for msg := 0; msg < msgsPerExchange; msg++ { |
| 75 | + clientRoundTrip(t, stream, true) |
| 76 | + } |
| 77 | + // And one that won't work necessarily, but shouldn't break other streams in the session. |
| 78 | + if iter%2 == 0 { |
| 79 | + clientRoundTrip(t, stream, false) |
| 80 | + } |
| 81 | + }(exchange) |
| 82 | + } |
| 83 | + |
| 84 | + wg.Wait() |
| 85 | +} |
| 86 | + |
| 87 | +func quicServer(t *testing.T, serverReady *sync.WaitGroup, conn net.PacketConn) { |
| 88 | + ctx, cancel := context.WithCancel(context.Background()) |
| 89 | + defer cancel() |
| 90 | + |
| 91 | + earlyListener, err := quic.Listen(conn, testTLSServerConfig, testQUICConfig) |
| 92 | + require.NoError(t, err) |
| 93 | + |
| 94 | + serverReady.Done() |
| 95 | + session, err := earlyListener.Accept(ctx) |
| 96 | + require.NoError(t, err) |
| 97 | + |
| 98 | + var wg sync.WaitGroup |
| 99 | + for exchange := 0; exchange < exchanges; exchange++ { |
| 100 | + quicStream, err := session.OpenStreamSync(context.Background()) |
| 101 | + require.NoError(t, err) |
| 102 | + wg.Add(1) |
| 103 | + |
| 104 | + go func(iter int) { |
| 105 | + defer wg.Done() |
| 106 | + |
| 107 | + stream := NewSafeStreamCloser(quicStream) |
| 108 | + defer stream.Close() |
| 109 | + |
| 110 | + // Do a bunch of round trips over this stream that should work. |
| 111 | + for msg := 0; msg < msgsPerExchange; msg++ { |
| 112 | + serverRoundTrip(t, stream, true) |
| 113 | + } |
| 114 | + // And one that won't work necessarily, but shouldn't break other streams in the session. |
| 115 | + if iter%2 == 1 { |
| 116 | + serverRoundTrip(t, stream, false) |
| 117 | + } |
| 118 | + }(exchange) |
| 119 | + } |
| 120 | + |
| 121 | + wg.Wait() |
| 122 | +} |
| 123 | + |
| 124 | +func clientRoundTrip(t *testing.T, stream io.ReadWriteCloser, mustWork bool) { |
| 125 | + response := make([]byte, len(testMsg)) |
| 126 | + _, err := stream.Read(response) |
| 127 | + if !mustWork { |
| 128 | + return |
| 129 | + } |
| 130 | + if err != io.EOF { |
| 131 | + require.NoError(t, err) |
| 132 | + } |
| 133 | + require.Equal(t, testMsg, string(response)) |
| 134 | +} |
| 135 | + |
| 136 | +func serverRoundTrip(t *testing.T, stream io.ReadWriteCloser, mustWork bool) { |
| 137 | + _, err := stream.Write([]byte(testMsg)) |
| 138 | + if !mustWork { |
| 139 | + return |
| 140 | + } |
| 141 | + require.NoError(t, err) |
| 142 | +} |
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