319 lines
7.8 KiB
Go
319 lines
7.8 KiB
Go
package controller
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import (
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"encoding/json"
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"fmt"
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"strconv"
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"strings"
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"time"
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neService "be.ems/src/modules/network_element/service"
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"be.ems/src/framework/i18n"
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"be.ems/src/framework/logger"
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"be.ems/src/framework/utils/ctx"
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"be.ems/src/framework/utils/parse"
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"be.ems/src/framework/utils/ssh"
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"be.ems/src/framework/utils/telnet"
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"be.ems/src/framework/vo/result"
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"be.ems/src/modules/ws/service"
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"github.com/gin-gonic/gin"
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)
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// 实例化控制层 WSController 结构体
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var NewWSController = &WSController{
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wsService: service.NewWSImpl,
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wsSendService: service.NewWSSendImpl,
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neHostService: neService.NewNeHostImpl,
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}
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// WebSocket通信
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//
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// PATH /ws
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type WSController struct {
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// WebSocket 服务
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wsService service.IWS
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// WebSocket消息发送 服务
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wsSendService service.IWSSend
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// 网元主机连接服务
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neHostService neService.INeHost
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}
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// 通用
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//
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// GET /?subGroupIDs=0
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func (s *WSController) WS(c *gin.Context) {
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language := ctx.AcceptLanguage(c)
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// 登录用户信息
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loginUser, err := ctx.LoginUser(c)
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if err != nil {
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c.JSON(401, result.CodeMsg(401, i18n.TKey(language, err.Error())))
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return
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}
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// 订阅消息组
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var subGroupIDs []string
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subGroupIDStr := c.Query("subGroupID")
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if subGroupIDStr != "" {
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// 处理字符转id数组后去重
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ids := strings.Split(subGroupIDStr, ",")
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uniqueIDs := parse.RemoveDuplicates(ids)
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if len(uniqueIDs) > 0 {
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subGroupIDs = uniqueIDs
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}
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}
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// 将 HTTP 连接升级为 WebSocket 连接
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conn := s.wsService.UpgraderWs(c.Writer, c.Request)
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if conn == nil {
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return
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}
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defer conn.Close()
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wsClient := s.wsService.NewClient(loginUser.UserID, subGroupIDs, conn, nil)
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// 等待停止信号
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for value := range wsClient.StopChan {
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s.wsService.CloseClient(wsClient.ID)
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logger.Infof("ws Stop Client UID %s %s", wsClient.BindUid, value)
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return
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}
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}
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// 测试
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//
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// GET /test?clientId=&groupID=
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func (s *WSController) Test(c *gin.Context) {
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language := ctx.AcceptLanguage(c)
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// 登录用户信息
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loginUser, err := ctx.LoginUser(c)
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if err != nil {
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c.JSON(401, result.CodeMsg(401, i18n.TKey(language, err.Error())))
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return
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}
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errMsgArr := []string{}
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clientId := c.Query("clientId")
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if clientId != "" {
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err := s.wsSendService.ByClientID(c.Query("clientId"), loginUser)
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if err != nil {
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errMsgArr = append(errMsgArr, "clientId: "+err.Error())
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}
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}
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groupID := c.Query("groupID")
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if groupID != "" {
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err := s.wsSendService.ByGroupID(c.Query("groupID"), loginUser)
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if err != nil {
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errMsgArr = append(errMsgArr, "groupID: "+err.Error())
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}
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}
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c.JSON(200, result.OkData(errMsgArr))
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}
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// SSH终端
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//
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// GET /ssh?hostId=1&cols=80&rows=40
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func (s *WSController) SSH(c *gin.Context) {
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language := ctx.AcceptLanguage(c)
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// 登录用户信息
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loginUser, err := ctx.LoginUser(c)
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if err != nil {
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c.JSON(401, result.CodeMsg(401, i18n.TKey(language, err.Error())))
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return
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}
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// 连接主机ID
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hostId := c.Query("hostId")
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if hostId == "" {
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c.JSON(400, result.CodeMsg(400, i18n.TKey(language, "app.common.err400")))
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return
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}
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neHost := s.neHostService.SelectById(hostId)
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if neHost.HostID != hostId || neHost.HostType != "ssh" {
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// 没有可访问主机信息数据！
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c.JSON(200, result.ErrMsg(i18n.TKey(language, "neHost.noData")))
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return
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}
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// 创建链接SSH客户端
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var connSSH ssh.ConnSSH
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neHost.CopyTo(&connSSH)
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var client *ssh.ConnSSH
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var clientErr error
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if neHost.AuthMode == "2" {
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client, clientErr = connSSH.NewClientByLocalPrivate()
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} else {
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client, clientErr = connSSH.NewClient()
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}
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if clientErr != nil {
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// 连接主机失败，请检查连接参数后重试
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c.JSON(200, result.ErrMsg(i18n.TKey(language, "neHost.errByHostInfo")))
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return
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}
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defer client.Close()
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// 终端单行字符数
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cols, err := strconv.Atoi(c.Query("cols"))
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if err != nil {
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cols = 80
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}
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// 终端显示行数
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rows, err := strconv.Atoi(c.Query("rows"))
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if err != nil {
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rows = 40
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}
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// 创建SSH客户端会话
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clientSession, err := client.NewClientSession(cols, rows)
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if err != nil {
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// 连接主机失败，请检查连接参数后重试
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c.JSON(200, result.ErrMsg(i18n.TKey(language, "neHost.errByHostInfo")))
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return
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}
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defer clientSession.Close()
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// 将 HTTP 连接升级为 WebSocket 连接
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wsConn := s.wsService.UpgraderWs(c.Writer, c.Request)
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if wsConn == nil {
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return
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}
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defer wsConn.Close()
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wsClient := s.wsService.NewClient(loginUser.UserID, nil, wsConn, clientSession)
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// 实时读取SSH消息直接输出
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msTicker := time.NewTicker(100 * time.Millisecond)
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defer msTicker.Stop()
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go func() {
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for ms := range msTicker.C {
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outputByte := clientSession.Read()
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if len(outputByte) > 0 {
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outputStr := string(outputByte)
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msgByte, _ := json.Marshal(result.Ok(map[string]any{
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"requestId": fmt.Sprintf("ssh_%s_%d", hostId, ms.UnixMilli()),
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"data": outputStr,
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}))
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wsClient.MsgChan <- msgByte
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// 退出ssh登录
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// if strings.LastIndex(outputStr, "logout\r\n") != -1 {
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// time.Sleep(1 * time.Second)
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// s.wsService.CloseClient(wsClient.ID)
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// return
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// }
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}
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}
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}()
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// 等待停止信号
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for value := range wsClient.StopChan {
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s.wsService.CloseClient(wsClient.ID)
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logger.Infof("ws Stop Client UID %s %s", wsClient.BindUid, value)
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return
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}
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}
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// Telnet终端
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//
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// GET /telnet?hostId=1
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func (s *WSController) Telnet(c *gin.Context) {
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language := ctx.AcceptLanguage(c)
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// 登录用户信息
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loginUser, err := ctx.LoginUser(c)
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if err != nil {
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c.JSON(401, result.CodeMsg(401, i18n.TKey(language, err.Error())))
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return
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}
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// 连接主机ID
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hostId := c.Query("hostId")
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if hostId == "" {
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c.JSON(400, result.CodeMsg(400, i18n.TKey(language, "app.common.err400")))
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return
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}
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neHost := s.neHostService.SelectById(hostId)
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if neHost.HostID != hostId || neHost.HostType != "telnet" {
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// 没有可访问主机信息数据！
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c.JSON(200, result.ErrMsg(i18n.TKey(language, "neHost.noData")))
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return
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}
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// 创建链接Telnet客户端
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var connTelnet telnet.ConnTelnet
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neHost.CopyTo(&connTelnet)
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client, err := connTelnet.NewClient()
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if err != nil {
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// 连接主机失败，请检查连接参数后重试
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c.JSON(200, result.ErrMsg(i18n.TKey(language, "neHost.errByHostInfo")))
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return
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}
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defer client.Close()
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// 终端单行字符数
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cols, err := strconv.Atoi(c.Query("cols"))
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if err != nil || cols > 254 {
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cols = 80
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}
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// 终端显示行数
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rows, err := strconv.Atoi(c.Query("rows"))
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if err != nil || cols > rows {
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rows = 40
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}
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// 创建Telnet客户端会话
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clientSession, err := client.NewClientSession(uint8(cols), uint8(rows))
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if err != nil {
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// 连接主机失败，请检查连接参数后重试
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c.JSON(200, result.ErrMsg(i18n.TKey(language, "neHost.errByHostInfo")))
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return
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}
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defer clientSession.Close()
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// 将 HTTP 连接升级为 WebSocket 连接
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wsConn := s.wsService.UpgraderWs(c.Writer, c.Request)
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if wsConn == nil {
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return
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}
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defer wsConn.Close()
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wsClient := s.wsService.NewClient(loginUser.UserID, nil, wsConn, clientSession)
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// 实时读取Telnet消息直接输出
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msTicker := time.NewTicker(100 * time.Millisecond)
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defer msTicker.Stop()
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go func() {
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for ms := range msTicker.C {
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outputByte := clientSession.Read()
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if len(outputByte) > 0 {
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outputStr := strings.TrimRight(string(outputByte), "\x00")
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msgByte, _ := json.Marshal(result.Ok(map[string]any{
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"requestId": fmt.Sprintf("telnet_%s_%d", hostId, ms.UnixMilli()),
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"data": outputStr,
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}))
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wsClient.MsgChan <- msgByte
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// 退出telnet登录
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// if strings.LastIndex(outputStr, "logout\r\n") != -1 {
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// time.Sleep(1 * time.Second)
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// s.wsService.CloseClient(wsClient.ID)
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// return
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// }
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}
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}
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}()
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// 等待停止信号
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for value := range wsClient.StopChan {
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s.wsService.CloseClient(wsClient.ID)
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logger.Infof("ws Stop Client UID %s %s", wsClient.BindUid, value)
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return
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}
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}
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