err = wssocket.SendIframe([]byte("good"))
if err != nil {
log.Println("sendIframe err:" , err)
}
log.Println("send data")
}
} else {
log.Println(string(content))
// 直接读取
}
}
type WsSocket struct {
MaskingKey []byte
Conn net.Conn
}
func NewWsSocket(conn net.Conn) *WsSocket {
return &WsSocket{Conn: conn}
}
func (this *WsSocket)SendIframe(data []byte) error {
// 这里只处理data长度<125的
if len(data) >= 125 {
return errors.New("send iframe data error")
}
lenth := len(data)
maskedData := make([]byte, lenth)
for i := 0; i < lenth; i++ {
if this.MaskingKey != nil {
maskedData[i] = data[i] ^ this.MaskingKey[i % 4]
} else {
maskedData[i] = data[i]
}
}
this.Conn.Write([]byte{0x81})
var payLenByte byte
if this.MaskingKey != nil && len(this.MaskingKey) != 4 {
payLenByte = byte(0x80) | byte(lenth)
this.Conn.Write([]byte{payLenByte})
this.Conn.Write(this.MaskingKey)
} else {
payLenByte = byte(0x00) | byte(lenth)
this.Conn.Write([]byte{payLenByte})
}
this.Conn.Write(data)
return nil
}
func (this *WsSocket)ReadIframe() (data []byte, err error){
err = nil
//第一个字节：FIN + RSV1-3 + OPCODE
opcodeByte := make([]byte, 1)
this.Conn.Read(opcodeByte)
FIN := opcodeByte[0] >> 7
RSV1 := opcodeByte[0] >> 6 & 1
RSV2 := opcodeByte[0] >> 5 & 1
