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udpconn.go
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udpconn.go
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package service
import (
"context"
"crypto/md5"
"encoding/hex"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net"
"os"
path2 "path"
"reflect"
"strconv"
"strings"
"time"
"github.com/IceWhaleTech/CasaOS/model"
"github.com/IceWhaleTech/CasaOS/pkg/config"
"github.com/IceWhaleTech/CasaOS/pkg/quic_helper"
"github.com/IceWhaleTech/CasaOS/pkg/utils/file"
"github.com/IceWhaleTech/CasaOS/pkg/utils/ip_helper"
model2 "github.com/IceWhaleTech/CasaOS/service/model"
"github.com/IceWhaleTech/CasaOS/types"
"github.com/lucas-clemente/quic-go"
uuid "github.com/satori/go.uuid"
)
var UDPConn *net.UDPConn
var PeopleMap map[string]quic.Stream
var Message chan model.MessageModel
var UDPAddressMap map[string]string
func UDPSendData(msg model.MessageModel, localFilePath string) error {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
Message = make(chan model.MessageModel)
_, port, err := net.SplitHostPort(UDPConn.LocalAddr().String())
if config.ServerInfo.UDPPort != port {
config.ServerInfo.UDPPort = port
config.Cfg.Section("server").Key("UDPPort").SetValue(port)
config.Cfg.SaveTo(config.SystemConfigInfo.ConfigPath)
}
p, err := strconv.Atoi(port)
srcAddr := &net.UDPAddr{
IP: net.IPv4zero, Port: p} //注意端口必须固定
addr := UDPAddressMap[msg.To]
ticket := msg.To
dstAddr, err := net.ResolveUDPAddr("udp", addr)
session, err := quic.DialContext(ctx, UDPConn, dstAddr, srcAddr.String(), quic_helper.GetClientTlsConfig(ticket), quic_helper.GetQUICConfig())
if err != nil {
if msg.Type == types.PERSONDOWNLOAD {
task := MyService.Download().GetDownloadById(msg.UUId)
task.Error = err.Error()
task.State = types.DOWNLOADERROR
MyService.Download().SetDownloadError(task)
}
if config.SystemConfigInfo.Analyse != "False" {
go MyService.Casa().PushConnectionStatus(msg.UUId, err.Error(), msg.From, msg.To, msg.Type)
}
return err
}
stream, err := session.OpenStreamSync(ctx)
if err != nil {
if msg.Type == types.PERSONDOWNLOAD {
task := MyService.Download().GetDownloadById(msg.UUId)
task.Error = err.Error()
task.State = types.DOWNLOADERROR
MyService.Download().SetDownloadError(task)
}
if config.SystemConfigInfo.Analyse != "False" {
go MyService.Casa().PushConnectionStatus(msg.UUId, err.Error(), msg.From, msg.To, msg.Type)
}
session.CloseWithError(1, err.Error())
return err
}
SayHello(stream, msg.To)
//TODO:发送
SendData(stream, msg)
SendFileData(stream, localFilePath, msg.To, msg.UUId, types.PERSONUPLOADDATA)
stream.Close()
if config.SystemConfigInfo.Analyse != "False" {
go MyService.Casa().PushConnectionStatus(msg.UUId, "OK", msg.From, msg.To, msg.Type)
}
return nil
}
func Dial(msg model.MessageModel, server bool) (m model.MessageModel, err error) {
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
Message = make(chan model.MessageModel)
_, port, err := net.SplitHostPort(UDPConn.LocalAddr().String())
if config.ServerInfo.UDPPort != port {
config.ServerInfo.UDPPort = port
config.Cfg.Section("server").Key("UDPPort").SetValue(port)
config.Cfg.SaveTo(config.SystemConfigInfo.ConfigPath)
}
p, err := strconv.Atoi(port)
srcAddr := &net.UDPAddr{
IP: net.IPv4zero, Port: p} //注意端口必须固定
addr := UDPAddressMap[msg.To]
ticket := msg.To
if server {
addr = config.ServerInfo.Handshake + ":9527"
ticket = "bench"
}
dstAddr, err := net.ResolveUDPAddr("udp", addr)
//DialTCP在网络协议net上连接本地地址laddr和远端地址raddr。net必须是"udp"、"udp4"、"udp6";如果laddr不是nil,将使用它作为本地地址,否则自动选择一个本地地址。
//(conn)UDPConn代表一个UDP网络连接,实现了Conn和PacketConn接口
session, err := quic.DialContext(ctx, UDPConn, dstAddr, srcAddr.String(), quic_helper.GetClientTlsConfig(ticket), quic_helper.GetQUICConfig())
if err != nil {
if msg.Type == types.PERSONDOWNLOAD {
task := MyService.Download().GetDownloadById(msg.UUId)
task.Error = err.Error()
task.State = types.DOWNLOADERROR
MyService.Download().SetDownloadError(task)
}
if config.SystemConfigInfo.Analyse != "False" {
go MyService.Casa().PushConnectionStatus(msg.UUId, err.Error(), msg.From, msg.To, msg.Type)
}
return m, err
}
stream, err := session.OpenStreamSync(ctx)
if err != nil {
if msg.Type == types.PERSONDOWNLOAD {
task := MyService.Download().GetDownloadById(msg.UUId)
task.Error = err.Error()
task.State = types.DOWNLOADERROR
MyService.Download().SetDownloadError(task)
}
if config.SystemConfigInfo.Analyse != "False" {
go MyService.Casa().PushConnectionStatus(msg.UUId, err.Error(), msg.From, msg.To, msg.Type)
}
session.CloseWithError(1, err.Error())
return m, err
}
SayHello(stream, msg.To)
SendData(stream, msg)
go ReadContent(stream)
result := <-Message
stream.Close()
if config.SystemConfigInfo.Analyse != "False" {
go MyService.Casa().PushConnectionStatus(msg.UUId, "OK", msg.From, msg.To, msg.Type)
}
return result, nil
}
func SayHello(stream quic.Stream, to string) {
msg := model.MessageModel{}
msg.Type = types.PERSONHELLO
msg.Data = "hello"
msg.To = to
msg.From = config.ServerInfo.Token
msg.UUId = uuid.NewV4().String()
SendData(stream, msg)
}
//发送数据
func SendData(stream quic.Stream, m model.MessageModel) {
b, _ := json.Marshal(m)
prefixLength := file.PrefixLength(len(b))
data := append(prefixLength, b...)
stream.Write(data)
}
//读取数据
func ReadContent(stream quic.Stream) {
for {
prefixByte := make([]byte, 6)
_, err := io.ReadFull(stream, prefixByte)
if err != nil {
fmt.Println(err)
time.Sleep(time.Second * 1)
for k, v := range CancelList {
tempPath := config.AppInfo.RootPath + "/temp" + "/" + v
fmt.Println(file.RMDir(tempPath))
delete(CancelList, k)
}
break
}
prefixLength, err := strconv.Atoi(string(prefixByte))
if err != nil {
fmt.Println(err)
break
}
messageByte := make([]byte, prefixLength)
_, err = io.ReadFull(stream, messageByte)
if err != nil {
fmt.Println(err)
break
}
m := model.MessageModel{}
err = json.Unmarshal(messageByte, &m)
if err != nil {
fmt.Println(err)
break
}
fmt.Println(m)
if m.Type == types.PERSONDOWNLOAD {
r := SaveFile(m, stream)
if r {
break
}
} else if m.Type == types.PERSONSUMMARY {
Summary(m, "download")
} else if m.Type == types.PERSONCONNECTION {
if len(m.Data.(string)) > 0 {
fmt.Println("设置ip", m.Data.(string))
UDPAddressMap[m.From] = m.Data.(string)
} else {
delete(UDPAddressMap, m.From)
}
// mi := model2.FriendModel{}
// mi.Avatar = config.UserInfo.Avatar
// mi.Profile = config.UserInfo.Description
// mi.NickName = config.UserInfo.NickName
// mi.Token = config.ServerInfo.Token
msg := model.MessageModel{}
msg.Type = types.PERSONHELLO
msg.Data = ""
msg.To = m.From
msg.From = config.ServerInfo.Token
msg.UUId = m.UUId
go Dial(msg, false)
Message <- m
break
} else if m.Type == types.PERSONGETIP {
notify := model2.AppNotify{}
notify.CustomId = m.From
if len(m.Data.(string)) == 0 {
if _, ok := UDPAddressMap[m.From]; ok {
notify.Type = types.NOTIFY_TYPE_PERSION_FIRNED_LEAVE
go MyService.Notify().SendText(notify)
}
delete(UDPAddressMap, m.From)
Message <- m
break
}
if _, ok := UDPAddressMap[m.From]; !ok {
notify.Type = types.NOTIFY_TYPE_PERSION_FIRNED_LIVE
go MyService.Notify().SendText(notify)
}
fmt.Println("设置ip", m.Data.(string))
UDPAddressMap[m.From] = m.Data.(string)
fmt.Println(config.ServerInfo.Token != m.From)
fmt.Println(strings.Split(m.Data.(string), ":")[0] == strings.Split(UDPAddressMap[config.ServerInfo.Token], ":")[0])
fmt.Println(strings.Split(m.Data.(string), ":")[0])
fmt.Println(strings.Split(UDPAddressMap[config.ServerInfo.Token], ":")[0])
if config.ServerInfo.Token != m.From && strings.Split(m.Data.(string), ":")[0] == strings.Split(UDPAddressMap[config.ServerInfo.Token], ":")[0] {
msg := model.MessageModel{}
msg.Type = types.PERSONINTERNALINSPECTION
msg.Data = ip_helper.GetDeviceAllIP(config.ServerInfo.UDPPort)
msg.To = m.From
msg.From = config.ServerInfo.Token
msg.UUId = m.UUId
go Dial(msg, true)
}
Message <- m
break
} else if m.Type == types.PERSONINTERNALINSPECTION {
fmt.Println("接收到反验证")
var ips []string
dataModelByte, _ := json.Marshal(m.Data)
err := json.Unmarshal(dataModelByte, &ips)
if err != nil {
fmt.Println(err)
break
}
go MyService.Friend().InternalInspection(ips, m.From)
Message <- m
break
} else {
Message <- m
}
}
Message <- model.MessageModel{}
}
func SendIPToServer() {
msg := model.MessageModel{}
msg.Type = types.PERSONHELLO
msg.Data = ""
msg.From = config.ServerInfo.Token
msg.To = config.ServerInfo.Token
msg.UUId = uuid.NewV4().String()
Dial(msg, true)
}
func LoopFriend() {
list := MyService.Friend().GetFriendList()
//list := MyService.Friend().GetFriendListRemote()
msg := model.MessageModel{}
msg.Type = types.PERSONGETIP
msg.Data = ""
msg.From = config.ServerInfo.Token
msg.To = config.ServerInfo.Token
msg.UUId = uuid.NewV4().String()
Dial(msg, true)
for i := 0; i < len(list); i++ {
if _, ok := UDPAddressMap[list[i].Token]; !ok {
msg := model.MessageModel{}
msg.Type = types.PERSONGETIP
msg.Data = ""
msg.From = config.ServerInfo.Token
msg.To = list[i].Token
msg.UUId = uuid.NewV4().String()
Dial(msg, true)
}
msg.Type = types.PERSONPING
msg.Data = ""
msg.From = config.ServerInfo.Token
msg.To = list[i].Token
msg.UUId = uuid.NewV4().String()
if v, ok := UDPAddressMap[list[i].Token]; ok {
if ip_helper.HasLocalIP(net.ParseIP(strings.Split(v, ":")[0])) {
msg.Data = ip_helper.GetDeviceAllIP(config.ServerInfo.UDPPort)
fmt.Println("判断为内网ip,设置自己的ip地址", msg.Data)
}
fmt.Println("ping的数据", UDPAddressMap[list[i].Token])
oldIP := UDPAddressMap[list[i].Token]
fmt.Println("old ip", oldIP)
data, err := Dial(msg, false)
if err != nil || reflect.DeepEqual(data, model.MessageModel{}) || len(data.Data.(string)) == 0 {
fmt.Println("ping失败", list[i].Token, err, data, UDPAddressMap[list[i].Token])
if oldIP == UDPAddressMap[list[i].Token] {
notify := model2.AppNotify{}
notify.CustomId = data.From
notify.Type = types.NOTIFY_TYPE_PERSION_FIRNED_LEAVE
go MyService.Notify().SendText(notify)
delete(UDPAddressMap, list[i].Token)
msg := model.MessageModel{}
msg.Type = types.PERSONGETIP
msg.Data = ""
msg.From = config.ServerInfo.Token
msg.To = list[i].Token
msg.UUId = uuid.NewV4().String()
Dial(msg, true)
}
}
}
go func(shareId string) {
user := MyService.Casa().GetUserInfoByShareId(shareId)
m := model2.FriendModel{}
m.Token = shareId
friend := MyService.Friend().GetFriendById(m)
if friend.Version != user.Version {
friend.Avatar = user.Avatar
friend.NickName = user.NickName
friend.Profile = user.Desc
friend.Version = user.Version
MyService.Friend().UpdateOrCreate(friend)
}
}(list[i].Token)
}
}
//file summary
func Summary(m model.MessageModel, t string) {
dataModel := model.FileSummaryModel{}
dataModelByte, _ := json.Marshal(m.Data)
err := json.Unmarshal(dataModelByte, &dataModel)
if err != nil {
fmt.Println(err)
}
task := MyService.Download().GetDownloadById(m.UUId)
task.State = types.DOWNLOADING
fullPath := path2.Join(task.LocalPath, task.Name)
if len(dataModel.Message) > 0 {
task.State = types.DOWNLOADERROR
task.Error = dataModel.Message
}
//The file already exists and the file is the same, no need to download
if t != "upload" && file.Exists(fullPath) && file.GetHashByPath(fullPath) == dataModel.Hash {
task.State = types.DOWNLOADFINISHED
go func(from, uuid string) {
m := model.MessageModel{}
m.Data = ""
m.From = config.ServerInfo.Token
m.To = from
m.Type = types.PERSONCANCEL
m.UUId = uuid
CancelList[uuid] = uuid
Dial(m, false)
}(task.From, task.UUID)
}
task.UUID = m.UUId
task.Name = dataModel.Name
task.Length = dataModel.Length
task.Size = dataModel.Size
task.BlockSize = dataModel.BlockSize
task.Hash = dataModel.Hash
task.Type = types.PERSONFILEDOWNLOAD
task.From = m.From
if t == "upload" {
task.Type = types.PERSONFILERECEIVEUPLOAD
}
MyService.Download().SaveDownload(task)
}
//Save file fragment
func SaveFile(m model.MessageModel, stream quic.Stream) bool {
dataModelByte, _ := json.Marshal(m.Data)
dataModel := model.TranFileModel{}
err := json.Unmarshal(dataModelByte, &dataModel)
if err != nil {
fmt.Println(err)
return false
}
dataLengthByte := make([]byte, 8)
_, err = io.ReadFull(stream, dataLengthByte)
if err != nil {
fmt.Println(err)
return false
}
dataLength, err := strconv.Atoi(string(dataLengthByte))
if err != nil {
fmt.Println(err)
return false
}
dataByte := make([]byte, dataLength)
_, err = io.ReadFull(stream, dataByte)
if err != nil {
fmt.Println(err)
return false
}
sum := md5.Sum(dataByte)
hash := hex.EncodeToString(sum[:])
if dataModel.Hash != hash {
fmt.Println("hash不匹配", hash, dataModel.Hash)
return false
}
tempPath := config.AppInfo.RootPath + "/temp" + "/" + m.UUId
file.IsNotExistMkDir(tempPath)
filepath := tempPath + "/" + strconv.Itoa(dataModel.Index)
_, err = os.Stat(filepath)
if os.IsNotExist(err) {
err = ioutil.WriteFile(filepath, dataByte, 0644)
task := model2.PersonDownloadDBModel{}
task.UUID = m.UUId
if err != nil {
task.Error = err.Error()
task.State = types.DOWNLOADERROR
MyService.Download().SetDownloadError(task)
}
} else {
if file.GetHashByPath(filepath) != dataModel.Hash {
os.Remove(filepath)
err = ioutil.WriteFile(filepath, dataByte, 0644)
task := model2.PersonDownloadDBModel{}
task.UUID = m.UUId
if err != nil {
task.Error = err.Error()
task.State = types.DOWNLOADERROR
MyService.Download().SetDownloadError(task)
}
}
}
files, err := ioutil.ReadDir(tempPath)
if err != nil {
fmt.Println(err)
return false
}
if len(files) >= dataModel.Length {
summary := MyService.Download().GetDownloadById(m.UUId)
summary.State = types.DOWNLOADFINISH
MyService.Download().EditDownloadState(summary)
fullPath := file.GetNoDuplicateFileName(path2.Join(summary.LocalPath, summary.Name))
file.SpliceFiles(tempPath, fullPath, dataModel.Length, 0)
if file.GetHashByPath(fullPath) == summary.Hash {
file.RMDir(tempPath)
summary.State = types.DOWNLOADFINISHED
MyService.Download().EditDownloadState(summary)
} else {
os.Remove(config.FileSettingInfo.DownloadDir + "/" + summary.Name)
summary.State = types.DOWNLOADERROR
summary.Error = "hash mismatch"
MyService.Download().SetDownloadError(summary)
}
return true
}
return false
}