mirror of https://gitee.com/godoos/godoos.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
159 lines
3.8 KiB
159 lines
3.8 KiB
/*
|
|
* GodoOS - A lightweight cloud desktop
|
|
* Copyright (C) 2024 https://godoos.com
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package localchat
|
|
|
|
import (
|
|
"encoding/json"
|
|
"godo/libs"
|
|
"log"
|
|
"net"
|
|
"strconv"
|
|
"time"
|
|
)
|
|
|
|
type UdpMessage struct {
|
|
Hostname string `json:"hostname"`
|
|
Type string `json:"type"`
|
|
Time time.Time `json:"time"`
|
|
IP string `json:"ip"`
|
|
Message any `json:"message"`
|
|
}
|
|
|
|
type UserMessage struct {
|
|
Messages map[string][]UdpMessage `json:"messages"`
|
|
Onlines map[string]UserStatus `json:"onlines"`
|
|
}
|
|
type UserStatus struct {
|
|
Hostname string `json:"hostname"`
|
|
IP string `json:"ip"`
|
|
Time time.Time `json:"time"`
|
|
Avatar string `json:"avatar"`
|
|
}
|
|
|
|
var OnlineUsers = make(map[string]UserStatus)
|
|
var UserMessages = make(map[string][]UdpMessage)
|
|
|
|
func init() {
|
|
go UdpServer()
|
|
go CheckOnlines()
|
|
}
|
|
|
|
func CheckOnlines() {
|
|
//CheckOnline()
|
|
chatIpSetting := libs.GetChatIpSetting()
|
|
cktime, err := strconv.Atoi(chatIpSetting.CheckTime)
|
|
if err != nil {
|
|
cktime = 15
|
|
}
|
|
checkTimeDuration := time.Duration(cktime) * time.Second
|
|
|
|
ticker := time.NewTicker(checkTimeDuration)
|
|
defer ticker.Stop()
|
|
for range ticker.C {
|
|
// 检查客户端是否已断开连接
|
|
CheckOnline()
|
|
}
|
|
}
|
|
|
|
// UDP 服务器端逻辑
|
|
func UdpServer() {
|
|
// 监听 UDP 端口
|
|
listener, err := net.ListenPacket("udp", ":56780")
|
|
if err != nil {
|
|
log.Fatalf("error setting up listener: %v", err)
|
|
}
|
|
defer listener.Close()
|
|
|
|
log.Println("UDP server started on :56780")
|
|
|
|
// 监听 UDP 请求
|
|
for {
|
|
buffer := make([]byte, 1024)
|
|
|
|
n, remoteAddr, err := listener.ReadFrom(buffer)
|
|
if err != nil {
|
|
log.Printf("error reading from UDP: %v", err)
|
|
continue
|
|
}
|
|
|
|
log.Printf("Received UDP packet from %v: %s", remoteAddr, buffer[:n])
|
|
// 从 remoteAddr 获取 IP 地址
|
|
udpAddr, ok := remoteAddr.(*net.UDPAddr)
|
|
if !ok {
|
|
log.Printf("unexpected address type: %T", remoteAddr)
|
|
continue
|
|
}
|
|
ip := udpAddr.IP.String()
|
|
// 解析 UDP 数据
|
|
var udpMsg UdpMessage
|
|
err = json.Unmarshal(buffer[:n], &udpMsg)
|
|
if err != nil {
|
|
log.Printf("error unmarshalling UDP message: %v", err)
|
|
continue
|
|
}
|
|
udpMsg.IP = ip
|
|
|
|
if udpMsg.Type == "heartbeat" {
|
|
UpdateUserStatus(udpMsg.IP, udpMsg.Hostname)
|
|
continue
|
|
}
|
|
|
|
// if udpMsg.Type == "file" {
|
|
// ReceiveFile(udpMsg)
|
|
// continue
|
|
// }
|
|
// if udpMsg.Type == "fileAccessed" {
|
|
// HandlerSendFile(udpMsg)
|
|
// continue
|
|
// }
|
|
if udpMsg.Type == "image" {
|
|
filePath, err := ReceiveImg(udpMsg)
|
|
if err != nil {
|
|
log.Printf("error receiving image: %v", err)
|
|
continue
|
|
}
|
|
udpMsg.Message = filePath
|
|
}
|
|
// 添加消息到 UserMessages
|
|
AddMessage(udpMsg)
|
|
|
|
}
|
|
}
|
|
|
|
func ClearAllUserMessages() {
|
|
UserMessages = make(map[string][]UdpMessage)
|
|
}
|
|
|
|
func GetMessages() UserMessage {
|
|
return UserMessage{
|
|
Messages: UserMessages,
|
|
Onlines: OnlineUsers,
|
|
}
|
|
}
|
|
|
|
func AddMessage(msg UdpMessage) {
|
|
// 检查 UserMessages 中是否已经有这个 IP 地址的消息列表
|
|
if _, ok := UserMessages[msg.IP]; !ok {
|
|
// 如果没有,则创建一个新的消息列表
|
|
UserMessages[msg.IP] = []UdpMessage{}
|
|
}
|
|
|
|
// 将新消息添加到对应 IP 地址的消息列表中
|
|
UserMessages[msg.IP] = append(UserMessages[msg.IP], msg)
|
|
}
|
|
|