13 _ "github.com/anacrolix/envpprof"
15 "github.com/bradfitz/iter"
16 "github.com/stretchr/testify/require"
19 func TestReadUntil(t *testing.T) {
20 test := func(data, until string, leftover int, expectedErr error) {
21 r := bytes.NewReader([]byte(data))
22 err := readUntil(r, []byte(until))
23 if err != expectedErr {
26 if r.Len() != leftover {
30 test("feakjfeafeafegbaabc00", "abc", 2, nil)
31 test("feakjfeafeafegbaadc00", "abc", 0, io.EOF)
34 func TestSuffixMatchLen(t *testing.T) {
35 test := func(a, b string, expected int) {
36 actual := suffixMatchLen([]byte(a), []byte(b))
37 if actual != expected {
38 t.Fatalf("expected %d, got %d for %q and %q", expected, actual, a, b)
41 test("hello", "world", 0)
42 test("hello", "lo", 2)
43 test("hello", "llo", 3)
44 test("hello", "hell", 0)
45 test("hello", "helloooo!", 5)
46 test("hello", "lol!", 2)
47 test("hello", "mondo", 0)
48 test("mongo", "webscale", 0)
49 test("sup", "person", 1)
52 func handshakeTest(t testing.TB, ia []byte, aData, bData string, cryptoProvides uint32, cryptoSelect func(uint32) uint32) {
54 wg := sync.WaitGroup{}
58 a, err := InitiateHandshake(a, []byte("yep"), ia, cryptoProvides)
63 go a.Write([]byte(aData))
66 n, _ := a.Read(msg[:])
70 // t.Log(string(msg[:n]))
74 b, err := ReceiveHandshake(b, sliceIter([][]byte{[]byte("nope"), []byte("yep"), []byte("maybe")}), cryptoSelect)
79 go b.Write([]byte(bData))
80 // Need to be exact here, as there are several reads, and net.Pipe is
82 msg := make([]byte, len(ia)+len(aData))
83 n, _ := io.ReadFull(b, msg[:])
87 // t.Log(string(msg[:n]))
94 func allHandshakeTests(t testing.TB, provides uint32, selector CryptoSelector) {
95 handshakeTest(t, []byte("jump the gun, "), "hello world", "yo dawg", provides, selector)
96 handshakeTest(t, nil, "hello world", "yo dawg", provides, selector)
97 handshakeTest(t, []byte{}, "hello world", "yo dawg", provides, selector)
100 func TestHandshakeDefault(t *testing.T) {
101 allHandshakeTests(t, AllSupportedCrypto, DefaultCryptoSelector)
102 t.Logf("crypto provides encountered: %s", cryptoProvidesCount)
105 func TestHandshakeSelectPlaintext(t *testing.T) {
106 allHandshakeTests(t, AllSupportedCrypto, func(uint32) uint32 { return CryptoMethodPlaintext })
109 func BenchmarkHandshakeDefault(b *testing.B) {
110 for range iter.N(b.N) {
111 allHandshakeTests(b, AllSupportedCrypto, DefaultCryptoSelector)
115 type trackReader struct {
120 func (tr *trackReader) Read(b []byte) (n int, err error) {
121 n, err = tr.r.Read(b)
126 func TestReceiveRandomData(t *testing.T) {
127 tr := trackReader{rand.Reader, 0}
128 _, err := ReceiveHandshake(readWriter{&tr, ioutil.Discard}, nil, DefaultCryptoSelector)
130 require.Error(t, err)
131 // Establishing S, and then reading the maximum padding for giving up on
133 require.EqualValues(t, 96+532, tr.n)
136 func fillRand(t testing.TB, bs ...[]byte) {
137 for _, b := range bs {
138 _, err := rand.Read(b)
139 require.NoError(t, err)
143 func readAndWrite(rw io.ReadWriter, r []byte, w []byte) error {
144 var wg sync.WaitGroup
149 _, wErr = rw.Write(w)
151 _, err := io.ReadFull(rw, r)
159 func benchmarkStream(t *testing.B, crypto uint32) {
160 ia := make([]byte, 0x1000)
161 a := make([]byte, 1<<20)
162 b := make([]byte, 1<<20)
163 fillRand(t, ia, a, b)
165 t.SetBytes(int64(len(ia) + len(a) + len(b)))
167 for range iter.N(t.N) {
169 ar := make([]byte, len(b))
170 br := make([]byte, len(ia)+len(a))
172 var wg sync.WaitGroup
177 rw, err := InitiateHandshake(ac, []byte("cats"), ia, crypto)
178 require.NoError(t, err)
179 require.NoError(t, readAndWrite(rw, ar, a))
183 rw, err := ReceiveHandshake(bc, sliceIter([][]byte{[]byte("cats")}), func(uint32) uint32 { return crypto })
184 require.NoError(t, err)
185 require.NoError(t, readAndWrite(rw, br, b))
188 if !bytes.Equal(ar, b) {
189 t.Fatalf("A read the wrong bytes")
191 if !bytes.Equal(br[:len(ia)], ia) {
192 t.Fatalf("B read the wrong IA")
194 if !bytes.Equal(br[len(ia):], a) {
195 t.Fatalf("B read the wrong A")
197 // require.Equal(t, b, ar)
198 // require.Equal(t, ia, br[:len(ia)])
199 // require.Equal(t, a, br[len(ia):])
203 func BenchmarkStreamRC4(t *testing.B) {
204 benchmarkStream(t, CryptoMethodRC4)
207 func BenchmarkStreamPlaintext(t *testing.B) {
208 benchmarkStream(t, CryptoMethodPlaintext)
211 func BenchmarkPipeRC4(t *testing.B) {
212 key := make([]byte, 20)
213 n, _ := rand.Read(key)
214 require.Equal(t, len(key), n)
216 c, err := rc4.NewCipher(key)
217 require.NoError(t, err)
222 c, err = rc4.NewCipher(key)
223 require.NoError(t, err)
228 a := make([]byte, 0x1000)
229 n, _ = io.ReadFull(rand.Reader, a)
230 require.Equal(t, len(a), n)
231 b := make([]byte, len(a))
232 t.SetBytes(int64(len(a)))
234 for range iter.N(t.N) {
243 if !bytes.Equal(a, b) {