560 lines
17 KiB
Go
560 lines
17 KiB
Go
package handler
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import (
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"fmt"
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"github.com/gin-gonic/gin"
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"io"
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"log"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"strconv"
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"time"
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"videoplayer/dao"
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"videoplayer/proto"
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"videoplayer/service"
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"videoplayer/worker"
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)
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type SetRedisReq struct {
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Option string `json:"option" form:"option"`
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Key string `json:"key" form:"key"`
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Value string `json:"value" form:"value"`
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Expire int `json:"expire" form:"expire"`
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}
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type SetDeviceStatusReq struct {
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ID string `json:"id" form:"id"` //设备编码
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Status string `json:"status" form:"status"` //设备状态
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}
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type GetFileListReq struct {
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Type string `json:"type" form:"type"` //请求类型，1：按md5查询，2：按文件名查询;3:查询待删除文件
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Md5 string `json:"md5" form:"md5"`
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}
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type SendMailReq struct {
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Title string `json:"title" form:"title"`
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Content string `json:"content" form:"content"`
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To string `json:"to" form:"to"`
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}
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func SetUpToolGroup(router *gin.Engine) {
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toolGroup := router.Group("/tool")
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toolGroup.POST("/set_redis", SetRedis)
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toolGroup.POST("/get_redis", GetRedis)
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//文件上传、下载
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toolGroup.POST("/upload", UploadFile)
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toolGroup.GET("/download", DownloadFile)
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toolGroup.GET("/file/:filename", GetFile)
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toolGroup.POST("/file_list", GetFileList)
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//文件管理
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toolGroup.POST("/file_del", DelFile)
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//服务器、设备状态接口
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toolGroup.POST("/monitor", SetDeviceStatusV2)
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toolGroup.GET("/get_monitor_list", GetMonitorList) //获取设备监控列表
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toolGroup.POST("/update_monitor", UpdateMonitor) //设置设备状态
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toolGroup.POST("/del_monitor", DelMonitor) //删除设备监控
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//发送邮件
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toolGroup.POST("/send_mail", SendMailTool)
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//下载代理
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toolGroup.GET("/dl/:url", DownloadProxyHandle)
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}
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func GetMonitorList(c *gin.Context) {
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id, _ := c.Get("id")
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userId := int(id.(float64))
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var resp proto.GeneralResp
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monitorDeviceList, err := service.GetMonitorDeviceListWithStatus(userId)
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if err != nil {
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resp.Code = proto.OperationFailed
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resp.Message = err.Error()
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} else {
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resp.Code = proto.SuccessCode
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resp.Message = "success"
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resp.Data = monitorDeviceList
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}
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c.JSON(http.StatusOK, resp)
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}
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type UpdateMonitorDeviceStatusReq struct {
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Devices []proto.GetMonitorDeviceStatus `json:"devices" form:"devices"` //设备状态列表
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}
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func UpdateMonitor(c *gin.Context) {
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id, _ := c.Get("id")
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id1 := int(id.(float64))
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var req UpdateMonitorDeviceStatusReq
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var resp proto.GeneralResp
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if err := c.ShouldBind(&req); err == nil {
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err2 := service.UpdateMonitorDeviceListWithStatus(id1, req.Devices)
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if err2 != nil {
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resp.Code = proto.OperationFailed
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resp.Message = "更新设备状态失败：" + err2.Error()
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} else {
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resp.Code = proto.SuccessCode
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resp.Message = "更新设备状态成功"
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}
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} else {
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resp.Code = proto.ParameterError
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resp.Message = "参数解析失败：" + err.Error()
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}
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c.JSON(http.StatusOK, resp)
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}
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func DelMonitor(c *gin.Context) {
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id, _ := c.Get("id")
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id1 := int(id.(float64))
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var req UpdateMonitorDeviceStatusReq
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var resp proto.GeneralResp
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if err := c.ShouldBind(&req); err == nil {
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delSuccess, err2 := service.DelMonitorDeviceListWithStatus(id1, req.Devices)
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if err2 != nil {
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resp.Code = proto.OperationFailed
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resp.Message = "更新设备状态失败：" + err2.Error()
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resp.Data = delSuccess
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} else {
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resp.Code = proto.SuccessCode
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resp.Message = "更新设备状态成功"
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resp.Data = delSuccess
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}
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} else {
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resp.Code = proto.ParameterError
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resp.Message = "参数解析失败：" + err.Error()
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}
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c.JSON(http.StatusOK, resp)
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}
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func SetDeviceStatusV2(c *gin.Context) {
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// TODO
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var req SetDeviceStatusReq
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var resp proto.GeneralResp
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if err := c.ShouldBind(&req); err != nil {
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resp.Code = proto.ParameterError
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resp.Message = "参数解析失败：" + err.Error()
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} else {
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token := c.Request.Header.Get("token")
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if token == "" {
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resp.Code = proto.TokenIsNull //token为空
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} else {
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devices := worker.GetRedisSetMembers(token)
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if len(devices) == 0 {
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resp.Code = proto.MonitorServerIDIsNull
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resp.Message = "服务器设备监控为空!"
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} else {
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isExit := false
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for _, v := range devices {
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if v == req.ID {
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// 继续处理请求
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//是否是暂停之后第一次上线,如果是则发送邮件通知
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deviceStatus := worker.GetRedis("monitor_" + req.ID)
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isExist := worker.IsContainKey("monitor_" + req.ID)
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if deviceStatus == "2" || !isExist {
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//发送邮件通知
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title := "设备上线"
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content := "设备上线\n设备:" + req.ID + "\t状态:" + req.Status + "\t时间：" + time.Now().String()
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go SendMail(title, content)
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}
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worker.SetRedisWithExpire("monitor_"+req.ID, "1", time.Second*300)
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resp.Code = proto.SuccessCode
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resp.Message = "success"
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isExit = true
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}
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}
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if isExit == false {
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resp.Code = proto.MonitorServerIDNotFound
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resp.Message = "设备不存在!"
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log.Println("设备不存在,id:", req.ID, "\ttoken:", token, "\tdevices:", devices)
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}
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}
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}
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}
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c.JSON(http.StatusOK, resp)
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}
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func GetFileList(c *gin.Context) {
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//解析请求参数
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var req GetFileListReq
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if err := c.ShouldBind(&req); err == nil {
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if req.Type == "1" {
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//按md5查询
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if req.Md5 == "" {
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c.JSON(http.StatusOK, gin.H{"error": "md5 is empty", "code": proto.ParameterError, "message": "failed"})
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return
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}
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file := dao.FindFileByMd5(req.Md5)
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if file.ID == 0 {
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c.JSON(http.StatusOK, gin.H{"error": "file not found", "code": proto.FileNotFound, "message": "failed"})
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return
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}
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c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success", "data": file})
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}
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} else {
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c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
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return
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}
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}
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func DelFile(c *gin.Context) {
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//先查看是否有权限
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id, _ := c.Get("id")
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id1 := int(id.(float64))
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file_id, _ := strconv.Atoi(c.PostForm("id"))
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file_ := dao.FindFileByID(file_id, id1)
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if file_.ID == 0 {
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c.JSON(http.StatusOK, gin.H{"error": "file not found", "code": proto.FileNotFound, "message": "failed"})
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return
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}
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//删除文件
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err := os.Remove(file_.FilePath + "/" + file_.FileStoreName)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{"error": "delete file failed", "code": proto.DeleteFileFailed, "message": "failed"})
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return
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}
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//删除文件信息
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if res := dao.DeleteFileById(file_id); !res {
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c.JSON(http.StatusOK, gin.H{"error": "delete file info failed", "code": proto.DeleteFileInfoFailed, "message": "failed"})
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return
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}
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c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success"})
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}
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func GetFile(c *gin.Context) {
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//先查看是否有权限
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filename := c.Param("filename")
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if filename == "" {
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c.JSON(http.StatusOK, gin.H{"error": "filename is empty", "code": proto.ParameterError, "message": "failed"})
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return
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}
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//查询文件信息
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file := dao.FindFileByName(filename)
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if file.ID == 0 {
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c.JSON(http.StatusOK, gin.H{"error": "file not found", "code": proto.FileNotFound, "message": "failed"})
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return
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}
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//下载文件
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if file.NeedAuth == false {
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c.File(file.FilePath + "/" + file.FileStoreName)
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} else {
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c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "file must auth", "data": "file must auth"})
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}
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}
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func UploadFile(c *gin.Context) {
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//先查看是否有权限
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id, _ := c.Get("id")
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id1 := int(id.(float64))
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//从请求头获取upload_type
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uploadType := c.PostForm("upload_type")
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authType := c.PostForm("auth_type")
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md5_ := c.PostForm("md5")
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if uploadType == "" {
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c.JSON(http.StatusOK, gin.H{"error": "upload_type is empty", "code": proto.ParameterError, "message": "failed"})
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return
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}
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user := dao.FindUserByUserID(id1)
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if user.Upload == false {
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c.JSON(http.StatusOK, gin.H{"error": "no upload Permissions", "code": proto.NoUploadPermissions, "message": "failed"})
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return
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}
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//上传文件
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file, err := c.FormFile("file")
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if err != nil {
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c.JSON(http.StatusOK, gin.H{"error": "upload file failed", "code": proto.UploadFileFailed, "message": "failed"})
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return
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}
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//计算文件md5值
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if md5_ == "" {
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file_, _ := file.Open()
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md5_ = service.CalculateFileMd5(file_)
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if md5_ == "" {
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c.JSON(http.StatusOK, gin.H{"error": "计算文件MD5值失败", "code": proto.UploadFileFailed, "message": "failed"})
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return
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}
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}
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//查询文件是否已存在
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fileExist := dao.FindFileByMd5(md5_)
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if fileExist.ID != 0 {
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fileExist.FilePath = ""
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c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success", "data": fileExist})
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return
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}
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//保存文件
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filePath, fileStoreName, err := service.SaveFile(c, file, uploadType)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{"error": "save file failed", "code": proto.SaveFileFailed, "message": "failed"})
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return
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}
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//保存文件信息
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fileSize := int(file.Size)
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fileName := file.Filename
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fileType := file.Header.Get("file_type")
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var auth_type_ bool
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if authType == "public" || authType == "" {
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auth_type_ = false
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} else if authType == "private" {
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auth_type_ = true
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}
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file_record := dao.CreateFile(fileStoreName, fileName, fileType, filePath, md5_, fileSize, id1, auth_type_)
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if file_record.ID == 0 {
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c.JSON(http.StatusOK, gin.H{"error": "save file info failed", "code": proto.SaveFileInfoFailed, "message": "failed"})
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return
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}
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file_record.FilePath = ""
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c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success", "data": file_record})
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}
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func DownloadFile(c *gin.Context) {
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//参数
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//filename := c.Param("filename")
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file_id, _ := strconv.Atoi(c.Query("id"))
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id, _ := c.Get("id")
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//查询文件信息
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//file := dao.FindFileByNames(file_id, int(id.(float64)))
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file_ := dao.FindFileByID(file_id, int(id.(float64)))
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if file_.ID == 0 {
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c.JSON(http.StatusOK, gin.H{"error": "file not found", "code": proto.FileNotFound, "message": "failed"})
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return
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}
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//下载文件
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// 打开文件
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file, err := os.Open(file_.FilePath + "/" + file_.FileStoreName)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "Internal Server Error", "message": "Failed to open file"})
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return
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}
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defer file.Close()
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// 设置响应头
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c.Writer.Header().Set("Content-Type", "application/octet-stream")
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c.Writer.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", file_.FileName))
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// 发送文件内容
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_, err = io.Copy(c.Writer, file)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "Internal Server Error", "message": "Failed to send file"})
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return
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}
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c.Status(http.StatusOK)
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}
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func SetRedis(c *gin.Context) {
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//先查看是否有权限
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id, _ := c.Get("id")
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id1 := int(id.(float64))
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user := dao.FindUserByUserID(id1)
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if user.Redis == false {
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c.JSON(http.StatusOK, gin.H{"error": "no redis Permissions", "code": proto.NoRedisPermissions, "message": "failed"})
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return
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}
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//解析请求参数
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var req SetRedisReq
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if err := c.ShouldBind(&req); err == nil {
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var code int
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var message string
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if req.Option == "list" {
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code, message = service.SetToolRedisList(req.Key, req.Value, req.Expire)
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} else if req.Option == "set" {
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code, message = service.SetToolRedisSet(req.Key, req.Value, req.Expire)
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} else if req.Option == "kv" {
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code, message = service.SetToolRedisKV(req.Key, req.Value, req.Expire)
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}
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c.JSON(http.StatusOK, gin.H{"code": code, "message": message})
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} else {
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c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
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return
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}
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}
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func GetRedis(c *gin.Context) {
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//先查看是否有权限
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id, _ := c.Get("id")
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id1 := int(id.(float64))
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user := dao.FindUserByUserID(id1)
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if user.Redis == false {
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c.JSON(http.StatusOK, gin.H{"error": "no redis Permissions", "code": proto.NoRedisPermissions, "message": "failed"})
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return
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}
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//解析请求参数
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var req SetRedisReq
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if err := c.ShouldBind(&req); err == nil {
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if req.Option == "one" {
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code, message := service.GetToolRedis(req.Key)
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req.Value = message
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c.JSON(http.StatusOK, gin.H{"code": code, "message": message, "data": req})
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} else if req.Option == "all" {
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code, message, data := service.GetAllRedis()
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c.JSON(http.StatusOK, gin.H{"code": code, "message": message, "data": data})
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}
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} else {
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c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
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return
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}
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}
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// 服务器、设备状态扫描
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func ScanDeviceStatus() {
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// TODO
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// 检查设备状态
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// 如果设备状态异常, 则发送邮件通知
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devices := worker.GetRedisSetMembers("627gyf3488h")
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offline := ""
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for _, v := range devices {
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c := worker.IsContainKey("monitor_" + v)
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if c == false {
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worker.SetRedisWithExpire("monitor_"+v, "2", time.Hour*24)
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offline += v + ","
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}
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}
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if offline != "" {
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title := "设备状态异常"
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content := "设备状态异常\n设备: " + offline + "\t时间：" + time.Now().String()
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go SendMail(title, content)
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}
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}
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func SendMail(title, content string) {
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//捕获异常
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defer func() {
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if err := recover(); err != nil {
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fmt.Errorf("tool send mail error: %s", err)
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}
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}()
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// TODO
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// 发送邮件
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// 邮件内容
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// 邮件标题
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// 收件人
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// 发送邮件
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// 发送邮件通知
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// 发送邮件通知
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var em worker.MyEmail
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em.SmtpPassword = "nihzazdkmucnbhid"
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em.SmtpHost = "pop.qq.com:587"
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em.SmtpUserName = "354425203@qq.com"
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em.SmtpPort = 587
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em.ImapPort = 993
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var targetMails []string
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for _, v := range proto.Config.MONITOR_MAIL {
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targetMails = append(targetMails, v.Value)
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}
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if targetMails == nil || len(targetMails) == 0 {
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return
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}
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err := em.Send(title, content, targetMails)
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if err != nil {
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fmt.Println(err)
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}
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}
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func SendMailTool(c *gin.Context) {
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id, _ := c.Get("id")
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id1 := int(id.(float64))
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var req SendMailReq
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if err := c.ShouldBind(&req); err == nil {
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user := dao.FindUserByUserID(id1)
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if user.ID == 0 {
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c.JSON(http.StatusOK, gin.H{"error": "user not found", "code": proto.ParameterError, "message": "failed"})
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return
|
||
}
|
||
//目标邮箱地址是否合法
|
||
if !service.CheckEmail(req.To) {
|
||
c.JSON(http.StatusOK, gin.H{"error": "email address is invalid", "code": proto.ParameterError, "message": "failed"})
|
||
return
|
||
}
|
||
if req.Title == "" || req.Content == "" {
|
||
c.JSON(http.StatusOK, gin.H{"error": "title or content is empty", "code": proto.ParameterError, "message": "failed"})
|
||
return
|
||
}
|
||
//发送邮件
|
||
if user.Role == "admin" {
|
||
go service.SendEmail(req.To, req.Title, req.Content)
|
||
c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success", "data": "mail will be sent"})
|
||
} else {
|
||
c.JSON(http.StatusOK, gin.H{"error": "no send mail permission", "code": proto.PermissionDenied, "message": "failed"})
|
||
}
|
||
} else {
|
||
c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
|
||
}
|
||
|
||
}
|
||
|
||
// DownloadProxyHandle 处理下载代理请求
|
||
func DownloadProxyHandle(c *gin.Context) {
|
||
key := c.Query("key")
|
||
if key == "" || key != proto.Config.DOWNLOAD_PROXY_KEY {
|
||
c.JSON(http.StatusOK, gin.H{"code": proto.ParameterError, "message": "failed, key is null or error"})
|
||
}
|
||
// 获取URL参数
|
||
encodedURL := c.Param("url")
|
||
if encodedURL == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"error": "URL参数不能为空", "code": proto.ParameterError, "message": "failed"})
|
||
return
|
||
}
|
||
|
||
// URL解码
|
||
decodedURL, err := url.QueryUnescape(encodedURL)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{"error": "URL解码失败: " + err.Error(), "code": proto.ParameterError, "message": "failed"})
|
||
return
|
||
}
|
||
|
||
// 验证URL格式
|
||
parsedURL, err := url.Parse(decodedURL)
|
||
if err != nil || parsedURL.Scheme == "" || parsedURL.Host == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"error": "无效的URL格式", "code": proto.ParameterError, "message": "failed"})
|
||
return
|
||
}
|
||
|
||
// 发起请求获取目标资源
|
||
resp, err := http.Get(decodedURL)
|
||
if err != nil {
|
||
c.JSON(http.StatusInternalServerError, gin.H{"error": "获取资源失败: " + err.Error(), "code": proto.InternalServerError})
|
||
return
|
||
}
|
||
defer resp.Body.Close()
|
||
|
||
// 检查响应状态
|
||
if resp.StatusCode != http.StatusOK {
|
||
c.JSON(http.StatusBadGateway, gin.H{"error": "目标资源请求失败，状态码: " + resp.Status, "code": proto.InternalServerError})
|
||
return
|
||
}
|
||
|
||
// 获取文件名
|
||
filename := getFilenameFromURL(parsedURL)
|
||
|
||
// 设置响应头，告诉浏览器这是一个文件下载
|
||
c.Header("Content-Disposition", "attachment; filename="+url.QueryEscape(filename))
|
||
c.Header("Content-Type", resp.Header.Get("Content-Type"))
|
||
c.Header("Content-Length", resp.Header.Get("Content-Length"))
|
||
|
||
// 将响应体流式传输到客户端
|
||
_, err = io.Copy(c.Writer, resp.Body)
|
||
if err != nil {
|
||
// 已经开始传输数据后发生错误，无法返回JSON，只能记录日志
|
||
log.Println("tool download proxy handle error:", err)
|
||
}
|
||
}
|
||
|
||
// 从URL中提取文件名
|
||
func getFilenameFromURL(u *url.URL) string {
|
||
// 从路径中提取文件名
|
||
filename := filepath.Base(u.Path)
|
||
// 如果路径中没有文件名，尝试从查询参数中获取
|
||
if filename == "" || filename == "/" {
|
||
filename = "download_file"
|
||
}
|
||
return filename
|
||
}
|