135 lines
3.0 KiB
Go
135 lines
3.0 KiB
Go
package middleware
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import (
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"bufio"
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"context"
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"encoding/binary"
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"io"
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"log"
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"net"
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"time"
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"github.com/gogf/gf/v2/os/glog"
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"github.com/gogf/gf/v2/util/gconv"
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"github.com/lxzan/gws"
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)
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const PingInterval = 10 * time.Second
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type Handler struct {
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gws.BuiltinEventHandler
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port int
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target net.Conn
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}
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func (c *Handler) OnOpen(socket *gws.Conn) {
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target, err := net.Dial("tcp", "127.0.0.1:"+gconv.String(c.port))
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if err != nil {
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glog.Debug(context.Background(), "连接失败")
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}
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c.target = target
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//errChan := make(chan error, 2)
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if c.target == nil {
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return
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}
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go func(conn net.Conn, socket *gws.Conn) {
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reader := bufio.NewReader(conn)
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LOOP:
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for {
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// select {
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// default:
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packlen, err := reader.Peek(4)
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if err != nil {
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break LOOP
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}
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length := int32(binary.BigEndian.Uint32(packlen))
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data := make([]byte, length)
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io.ReadFull(reader, data)
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//pack_Ver := data[4] //因为包体已经解析，所以这里直接取0
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// var pack = make([]byte, length)
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socket.WriteMessage(gws.OpcodeBinary, data)
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//t.event.RecvHandler(pack)
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// client.OnReceiveBase(client, pack, length)
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}
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}(c.target, socket)
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//err = <-errChan
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if err != io.EOF {
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log.Println("proxy error:", err)
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}
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}
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func (c *Handler) OnPing(socket *gws.Conn, payload []byte) {
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_ = socket.SetDeadline(time.Now().Add(2 * PingInterval))
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_ = socket.WritePong(nil)
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}
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func (c *Handler) OnPong(socket *gws.Conn, payload []byte) {}
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func (c *Handler) OnMessage(socket *gws.Conn, gwsmessage *gws.Message) {
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if c.target != nil {
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c.target.Write(gwsmessage.Bytes())
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}
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//fmt.Println(gwsmessage.Bytes())
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}
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func (c *Handler) OnClose(socket *gws.Conn, err error) {
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glog.Debug(context.Background(), "断开连接")
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if c.target != nil {
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c.target.Close()
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}
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}
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// RemoveSocket 移除WebSocket连接
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func messeunpack(id int64, x []byte) {
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// json := gjson.ParseBytes(x)
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// json.ForEach(func(key, value gjson.Result) bool {
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// fmt.Println(key, value)
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// numeric := regexp.MustCompile(`\d`).MatchString(value.String())
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// var ob int
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// if numeric { //如果正确 则使用常量
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// } else { //如果错误，则使用变量，即从数据库查询常量定义值是多少
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// }
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// work.User_script(uint(id), strings.Trim(message.Data.String(), " "))
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// // switch s:=value.String() {
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// // case regexp.MustCompile(`\d`).MatchString(s):
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// // }
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// return true
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// })
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// json.Get("1").String()
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// var ob int
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// numeric := regexp.MustCompile(`\d`).MatchString(json.Get("1").String())
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// if numeric { //如果正确 则使用常量
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// ob, _ = strconv.Atoi(json.Get("1").String())
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// } else { //如果错误，则使用变量，即从数据库查询常量定义值是多少
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// ob, _ = strconv.Atoi(json.Get("1").String())
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// }
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// switch ob {
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// case 1: //发包函数
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// work.User_script(uint(id), strings.Trim(message.Data.String(), " "))
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// }
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// Go 1.9.7 onwards only.
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}
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