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size encoder and decoder

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This commit is contained in:
Darien Raymond
2017-04-23 13:30:08 +02:00
parent 6a90ce3c43
commit e87b0ca848
8 changed files with 383 additions and 348 deletions
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108
common/crypto/auth_test.go
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@@ -6,7 +6,6 @@ import (
"crypto/rand"
"io"
"testing"
"time"
"v2ray.com/core/common/buf"
. "v2ray.com/core/common/crypto"
@@ -24,8 +23,11 @@ func TestAuthenticationReaderWriter(t *testing.T) {
aead, err := cipher.NewGCM(block)
assert.Error(err).IsNil()
payload := make([]byte, 8*1024)
rand.Read(payload)
rawPayload := make([]byte, 8192)
rand.Read(rawPayload)
payload := buf.NewLocal(8192)
payload.Append(rawPayload)
cache := buf.NewLocal(16 * 1024)
iv := make([]byte, 12)
@@ -37,13 +39,11 @@ func TestAuthenticationReaderWriter(t *testing.T) {
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, cache, NewShakeUint16Generator([]byte{'a'}))
}, PlainChunkSizeParser{}, cache)
nBytes, err := writer.Write(payload)
assert.Error(err).IsNil()
assert.Int(nBytes).Equals(len(payload))
assert.Int(cache.Len()).GreaterThan(0)
_, err = writer.Write([]byte{})
assert.Error(writer.Write(buf.NewMultiBufferValue(payload))).IsNil()
assert.Int(cache.Len()).Equals(8210)
assert.Error(writer.Write(buf.NewMultiBuffer())).IsNil()
assert.Error(err).IsNil()
reader := NewAuthenticationReader(&AEADAuthenticator{
@@ -52,90 +52,16 @@ func TestAuthenticationReaderWriter(t *testing.T) {
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, cache, NewShakeUint16Generator([]byte{'a'}))
}, PlainChunkSizeParser{}, cache)
actualPayload := make([]byte, 16*1024)
nBytes, err = reader.Read(actualPayload)
mb, err := reader.Read()
assert.Error(err).IsNil()
assert.Int(nBytes).Equals(len(payload))
assert.Bytes(actualPayload[:nBytes]).Equals(payload)
assert.Int(mb.Len()).Equals(len(rawPayload))
_, err = reader.Read(actualPayload)
assert.Error(err).Equals(io.EOF)
}
func TestAuthenticationReaderWriterPartial(t *testing.T) {
assert := assert.On(t)
key := make([]byte, 16)
rand.Read(key)
block, err := aes.NewCipher(key)
assert.Error(err).IsNil()
aead, err := cipher.NewGCM(block)
assert.Error(err).IsNil()
payload := make([]byte, 8*1024)
rand.Read(payload)
iv := make([]byte, 12)
rand.Read(iv)
cache := buf.NewLocal(16 * 1024)
writer := NewAuthenticationWriter(&AEADAuthenticator{
AEAD: aead,
NonceGenerator: &StaticBytesGenerator{
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, cache, NewShakeUint16Generator([]byte{'a', 'b'}))
writer.Write([]byte{'a', 'b', 'c', 'd'})
nBytes, err := writer.Write(payload)
assert.Error(err).IsNil()
assert.Int(nBytes).Equals(len(payload))
assert.Int(cache.Len()).GreaterThan(0)
_, err = writer.Write([]byte{})
assert.Error(err).IsNil()
pr, pw := io.Pipe()
go func() {
pw.Write(cache.BytesTo(1024))
time.Sleep(time.Second * 2)
pw.Write(cache.BytesRange(1024, 2048))
time.Sleep(time.Second * 2)
pw.Write(cache.BytesRange(2048, 3072))
time.Sleep(time.Second * 2)
pw.Write(cache.BytesFrom(3072))
time.Sleep(time.Second * 2)
pw.Close()
}()
reader := NewAuthenticationReader(&AEADAuthenticator{
AEAD: aead,
NonceGenerator: &StaticBytesGenerator{
Content: iv,
},
AdditionalDataGenerator: &NoOpBytesGenerator{},
}, pr, NewShakeUint16Generator([]byte{'a', 'b'}))
actualPayload := make([]byte, 7*1024)
nBytes, err = reader.Read(actualPayload)
assert.Error(err).IsNil()
assert.Int(nBytes).Equals(4)
assert.Bytes(actualPayload[:nBytes]).Equals([]byte{'a', 'b', 'c', 'd'})
nBytes, err = reader.Read(actualPayload)
assert.Error(err).IsNil()
assert.Int(nBytes).Equals(len(actualPayload))
assert.Bytes(actualPayload[:nBytes]).Equals(payload[:nBytes])
nBytes, err = reader.Read(actualPayload)
assert.Error(err).IsNil()
assert.Int(nBytes).Equals(len(payload) - len(actualPayload))
assert.Bytes(actualPayload[:nBytes]).Equals(payload[7*1024:])
_, err = reader.Read(actualPayload)
mbContent := make([]byte, 8192)
mb.Read(mbContent)
assert.Bytes(mbContent).Equals(rawPayload)
_, err = reader.Read()
assert.Error(err).Equals(io.EOF)
}