为了更好的调试，准备重构

Signed-off-by: dmy@lab <dmy@lab.com>

tscipher/cipher.go

@@ -73,6 +73,9 @@ func UnwrapPackage(pacakge []byte) (packageSize int, data []byte, err error) {
 }
 
 func SendData(carrier *Carrier, nByte int) (n int, err error) {
+	if len(carrier.Cache) < nByte {
+		log.Panic("Cache of send is too small")
+	}
 	if carrier.Cipher == nil {
 		n, err = carrier.Conn.Write(carrier.Cache[:nByte])
 		return
@@ -113,7 +116,7 @@ func ReceiveData(carrier *Carrier) (n int, err error) {
 	// log.Info("packageSize %d data size %d", packageSize, len(data))
 	if err == nil && packageSize == len(data) { //读到的是一个完整的包
 		realData = data
-		log.Info("read a complete package")
+		log.Debug("read a complete package")
 	} else {
 		gotSize := len(data)
 		for {
@@ -123,7 +126,7 @@ func ReceiveData(carrier *Carrier) (n int, err error) {
 				return
 			}
 			wrapedPackage = carrier.Cache[:n]
-			log.Info("got partial package size %d", n)
+			log.Debug("got partial package size %d from %s", n, carrier.Conn.RemoteAddr().String())
 			_, data, err = UnwrapPackage(wrapedPackage)
 			if err == nil {
 				n = 0
@@ -133,7 +136,8 @@ func ReceiveData(carrier *Carrier) (n int, err error) {
 			gotSize += len(data)
 			realData = append(realData, data...)
 			if gotSize == packageSize {
-				log.Info("got enough:. packageSize %d, real size %d", packageSize, gotSize)
+				log.Debug("got enough:. packageSize %d, real size %d. not include header", packageSize, gotSize)
+				n = gotSize
 				break
 			}
 		}
@@ -144,7 +148,7 @@ func ReceiveData(carrier *Carrier) (n int, err error) {
 		n = 0
 		return
 	}
-	n = len(decrypted)
+	// n = len(decrypted)
 	copy(carrier.Cache, decrypted)
 	return
 }

tscipher/xor.go

@@ -7,20 +7,26 @@ type XOR struct {
 }
 
 func (this *XOR) Decrypt(data []byte) (decrypted []byte, err error) {
+	// decrypted = data
+	// err = nil
+	// return
 	decrypted = make([]byte, len(data))
 	for i := 0; i < len(data); i++ {
 		decrypted[i] = data[len(data)-i-1] ^ this.key[i%len(this.key)]
-		//		decrypted[i] = data[i]
+		// decrypted[i] = data[i]
 	}
 	err = nil
 	return
 }
 
 func (this *XOR) Encrypt(data []byte) (encryped []byte, err error) {
+	// encryped = data
+	// err = nil
+	// return
 	encryped = make([]byte, len(data))
 	for i := 0; i < len(data); i++ {
 		encryped[len(data)-i-1] = data[i] ^ this.key[i%len(this.key)]
-		//		encryped[i] = data[i]
+		// encryped[i] = data[i]
 	}
 	err = nil
 	return