12 _ "github.com/anacrolix/envpprof"
13 "github.com/stretchr/testify/assert"
14 "github.com/stretchr/testify/require"
17 func sliceIter(skeys [][]byte) SecretKeyIter {
18 return func(callback func([]byte) bool) {
19 for _, sk := range skeys {
27 func TestReadUntil(t *testing.T) {
28 test := func(data, until string, leftover int, expectedErr error) {
29 r := bytes.NewReader([]byte(data))
30 err := readUntil(r, []byte(until))
31 if err != expectedErr {
34 if r.Len() != leftover {
38 test("feakjfeafeafegbaabc00", "abc", 2, nil)
39 test("feakjfeafeafegbaadc00", "abc", 0, io.EOF)
42 func TestSuffixMatchLen(t *testing.T) {
43 test := func(a, b string, expected int) {
44 actual := suffixMatchLen([]byte(a), []byte(b))
45 if actual != expected {
46 t.Fatalf("expected %d, got %d for %q and %q", expected, actual, a, b)
49 test("hello", "world", 0)
50 test("hello", "lo", 2)
51 test("hello", "llo", 3)
52 test("hello", "hell", 0)
53 test("hello", "helloooo!", 5)
54 test("hello", "lol!", 2)
55 test("hello", "mondo", 0)
56 test("mongo", "webscale", 0)
57 test("sup", "person", 1)
60 func handshakeTest(t testing.TB, ia []byte, aData, bData string, cryptoProvides CryptoMethod, cryptoSelect CryptoSelector) {
62 wg := sync.WaitGroup{}
66 a, cm, err := InitiateHandshake(a, []byte("yep"), ia, cryptoProvides)
67 require.NoError(t, err)
68 assert.Equal(t, cryptoSelect(cryptoProvides), cm)
69 go a.Write([]byte(aData))
72 n, _ := a.Read(msg[:])
76 // t.Log(string(msg[:n]))
80 res := ReceiveHandshakeEx(b, sliceIter([][]byte{[]byte("nope"), []byte("yep"), []byte("maybe")}), cryptoSelect)
81 require.NoError(t, res.error)
82 assert.EqualValues(t, "yep", res.SecretKey)
84 assert.Equal(t, cryptoSelect(cryptoProvides), res.CryptoMethod)
85 go b.Write([]byte(bData))
86 // Need to be exact here, as there are several reads, and net.Pipe is most synchronous.
87 msg := make([]byte, len(ia)+len(aData))
88 n, _ := io.ReadFull(b, msg)
92 // t.Log(string(msg[:n]))
99 func allHandshakeTests(t testing.TB, provides CryptoMethod, selector CryptoSelector) {
100 handshakeTest(t, []byte("jump the gun, "), "hello world", "yo dawg", provides, selector)
101 handshakeTest(t, nil, "hello world", "yo dawg", provides, selector)
102 handshakeTest(t, []byte{}, "hello world", "yo dawg", provides, selector)
105 func TestHandshakeDefault(t *testing.T) {
106 allHandshakeTests(t, AllSupportedCrypto, DefaultCryptoSelector)
107 t.Logf("crypto provides encountered: %s", cryptoProvidesCount)
110 func TestHandshakeSelectPlaintext(t *testing.T) {
111 allHandshakeTests(t, AllSupportedCrypto, func(CryptoMethod) CryptoMethod { return CryptoMethodPlaintext })
114 func BenchmarkHandshakeDefault(b *testing.B) {
115 for i := 0; i < b.N; i += 1 {
116 allHandshakeTests(b, AllSupportedCrypto, DefaultCryptoSelector)
120 type trackReader struct {
125 func (tr *trackReader) Read(b []byte) (n int, err error) {
126 n, err = tr.r.Read(b)
131 func TestReceiveRandomData(t *testing.T) {
132 tr := trackReader{rand.Reader, 0}
133 _, _, err := ReceiveHandshake(readWriter{&tr, io.Discard}, nil, DefaultCryptoSelector)
135 require.Error(t, err)
136 // Establishing S, and then reading the maximum padding for giving up on
138 require.EqualValues(t, 96+532, tr.n)
141 func fillRand(t testing.TB, bs ...[]byte) {
142 for _, b := range bs {
143 _, err := rand.Read(b)
144 require.NoError(t, err)
148 func readAndWrite(rw io.ReadWriter, r, w []byte) error {
149 var wg sync.WaitGroup
154 _, wErr = rw.Write(w)
156 _, err := io.ReadFull(rw, r)
164 func benchmarkStream(t *testing.B, crypto CryptoMethod) {
165 ia := make([]byte, 0x1000)
166 a := make([]byte, 1<<20)
167 b := make([]byte, 1<<20)
168 fillRand(t, ia, a, b)
170 t.SetBytes(int64(len(ia) + len(a) + len(b)))
172 for i := 0; i < t.N; i += 1 {
174 ar := make([]byte, len(b))
175 br := make([]byte, len(ia)+len(a))
177 var wg sync.WaitGroup
182 rw, _, err := InitiateHandshake(ac, []byte("cats"), ia, crypto)
183 require.NoError(t, err)
184 require.NoError(t, readAndWrite(rw, ar, a))
188 rw, _, err := ReceiveHandshake(bc, sliceIter([][]byte{[]byte("cats")}), func(CryptoMethod) CryptoMethod { return crypto })
189 require.NoError(t, err)
190 require.NoError(t, readAndWrite(rw, br, b))
194 if !bytes.Equal(ar, b) {
195 t.Fatalf("A read the wrong bytes")
197 if !bytes.Equal(br[:len(ia)], ia) {
198 t.Fatalf("B read the wrong IA")
200 if !bytes.Equal(br[len(ia):], a) {
201 t.Fatalf("B read the wrong A")
203 // require.Equal(t, b, ar)
204 // require.Equal(t, ia, br[:len(ia)])
205 // require.Equal(t, a, br[len(ia):])
209 func BenchmarkStreamRC4(t *testing.B) {
210 benchmarkStream(t, CryptoMethodRC4)
213 func BenchmarkStreamPlaintext(t *testing.B) {
214 benchmarkStream(t, CryptoMethodPlaintext)
217 func BenchmarkPipeRC4(t *testing.B) {
218 key := make([]byte, 20)
219 n, _ := rand.Read(key)
220 require.Equal(t, len(key), n)
222 c, err := rc4.NewCipher(key)
223 require.NoError(t, err)
228 c, err = rc4.NewCipher(key)
229 require.NoError(t, err)
234 a := make([]byte, 0x1000)
235 n, _ = io.ReadFull(rand.Reader, a)
236 require.Equal(t, len(a), n)
237 b := make([]byte, len(a))
238 t.SetBytes(int64(len(a)))
240 for i := 0; i < t.N; i += 1 {
249 if !bytes.Equal(a, b) {
255 func BenchmarkSkeysReceive(b *testing.B) {
257 for i := 0; i < 100000; i += 1 {
258 skeys = append(skeys, make([]byte, 20))
260 fillRand(b, skeys...)
261 initSkey := skeys[len(skeys)/2]
265 for i := 0; i < b.N; i += 1 {
266 initiator, receiver := net.Pipe()
268 _, _, err := InitiateHandshake(initiator, initSkey, nil, AllSupportedCrypto)
273 res := ReceiveHandshakeEx(receiver, sliceIter(skeys), DefaultCryptoSelector)
274 if res.error != nil {