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websocket.go
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websocket.go
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/*
* @Author: 时光弧线
* @Date: 2017-12-30 11:55:50
* @Last Modified by: 时光弧线
* @Last Modified time: 2017-12-30 13:23:42
*/
package tcplibrary
import (
"errors"
"fmt"
"net/http"
"time"
"golang.org/x/net/websocket"
)
/* websocket 服务端 */
// WebSocketServer websocket 服务端操作对象
type WebSocketServer struct {
*TCPLibrary
isListener bool // 是否已监听
}
// NewWebSocketServer 创建一个websocket监听
func (t *TCPLibrary) NewWebSocketServer() *WebSocketServer {
return &WebSocketServer{
TCPLibrary: t,
isListener: false,
}
}
// ListenAndServe 开始ws监听
// address 监听的地址和端口
// route 监听的路由(url)
func (ws *WebSocketServer) ListenAndServe(address, route string) error {
if ws.isListener == true {
return errors.New("已调用监听端口")
}
if address == "" {
return errors.New("监听地址不能为空")
}
if route == "" {
route = "/"
}
// 判断是否设置读超时
if ws.readDeadline == 0 {
ws.readDeadline = DefaultReadDeadline
}
http.Handle(route, websocket.Handler(ws.handleWebSocketConn))
globalLogger.Infof("web socket start, net websocket addr %s", address)
err := http.ListenAndServe(address, nil)
return err
}
// ListenAndServeTLS 开始ws监听 tls
// address 监听的地址和端口
// route 监听的路由(url)
func (ws *WebSocketServer) ListenAndServeTLS(address, certFile, keyFile, route string) error {
if ws.isListener == true {
return errors.New("已调用监听端口")
}
if address == "" {
return errors.New("监听地址不能为空")
}
if route == "" {
route = "/"
}
// 判断是否设置读超时
if ws.readDeadline == 0 {
ws.readDeadline = DefaultReadDeadline
}
http.Handle(route, websocket.Handler(ws.handleWebSocketConn))
globalLogger.Infof("web socket start, net websocket addr %s", address)
err := http.ListenAndServeTLS(address, certFile, keyFile, nil)
return err
}
// 处理WebSocket数据
func (ws *WebSocketServer) handleWebSocketConn(wsConn *websocket.Conn) {
// 构建Conn对象
conn := &Conn{
Conn: wsConn,
connType: WebSocketType,
packet: ws.packet,
}
// 保存连接到客户端数组
serverSocket, ok := ws.socket.(ServerSocket)
if ok == false {
// 通知关闭连接
ws.socket.OnClose(conn, fmt.Errorf("%s", "转换为ServerSocket错误")) // 通知关闭
err := conn.Close() // 关闭连接
if err != nil {
globalLogger.Errorf("%s", err.Error())
}
return
}
// 补上客户端id和封包解包对象,并存入服务端客户端对象
clientID := serverSocket.GetClientID()
conn.clientID = clientID
ws.clients.Store(clientID, conn)
// 设置超时
conn.SetReadDeadline(time.Now().Add(ws.readDeadline))
// 调用OnConnect
// 通知连接创建后函数
err := ws.socket.OnConnect(conn)
if err != nil {
// 通知关闭连接
ws.socket.OnClose(conn, err) // 通知关闭
err = conn.Close() // 关闭连接
if err != nil {
globalLogger.Errorf("%s", err.Error())
}
return
}
// 调用websocket连接处理方法
ws.handleConn(conn)
}