func connect() {
if *pipeNum <= 0 {
*pipeNum = 1
}
clientInfo := common.ClientSetting{Version: common.Version, Delay: *delayTime, Mode: *clientMode, PipeNum: *pipeNum, AccessKey: *accessKey, ClientKey: *clientKey, AesKey: ""}
if *bEncrypt {
clientInfo.AesKey = string([]byte(fmt.Sprintf("asd4%d%d", int32(time.Now().Unix()), (rand.Intn(100000) + 100)))[:16])
log.Println("debug aeskey", clientInfo.AesKey)
key, _ := aes.NewCipher([]byte(clientInfo.AesKey))
aesKey = &key
}
if *bLoadSettingFromFile {
var setting fileSetting
err := loadSettings(&setting)
if err == nil {
clientInfo.AccessKey = setting.Key
} else {
log.Println("load setting fail", err.Error())
}
} else {
if clientInfo.AccessKey != "" {
var setting = fileSetting{Key: clientInfo.AccessKey}
err := saveSettings(setting)
if err != nil {
log.Println("save setting error", err.Error())
} else {
println("save setting ok, nexttime please use -f to replace -key")
}
}
}
if clientType == 0 {
markName = *serveName
clientInfo.ClientType = "reg"
} else if clientType == 1 {
markName = *linkName
clientInfo.ClientType = "link"
} else {
println("no clienttype!")
}
clientInfo.Name = markName
clientInfoStr, err := json.Marshal(clientInfo)
if err != nil {
println("encode args error")
}
log.Println("init client", string(clientInfoStr))
common.Write(remoteConn, "0", "init", string(clientInfoStr))
}
func handleResponse(conn net.Conn, id string, action string, content string) {
//log.Println("got", id, action, content)
common.GetClientInfoByConn(conn, func(client *common.ClientInfo) {
client.ResponseTime = time.Now().Unix()
}, func() {
})
switch action {
case "init":
clientInfoStr := content
var clientInfo common.ClientSetting
err := json.Unmarshal([]byte(clientInfoStr), &clientInfo)
if err != nil {
log.Println("error decode clientinfo, kick out", conn.RemoteAddr().String())
common.Write(conn, "0", "showandquit", "server decode clientInfo error")
return
}
if common.Version != clientInfo.Version {
s_version := fmt.Sprintf("%.2f", common.Version)
c_version := fmt.Sprintf("%.2f", clientInfo.Version)
log.Println("version not eq", conn.RemoteAddr().String(), s_version, c_version)
common.Write(conn, "0", "showandquit", "client version:"+c_version+" not eq with server:"+s_version)
return
}
ServerName := clientInfo.Name
if clientInfo.ClientType == "reg" {
var user *auth.User
if bUseDB {
if clientInfo.AccessKey == "" {
user, _ = auth.GetUser("test")
} else {
user, _ = auth.GetUserByKey(clientInfo.AccessKey)
}
} else {
user = &auth.User{UserType: auth.UserType_Admin}
}
//fmt.Printf("%+v\n", user)
if user == nil {
common.Write(conn, "0", "showandquit", "invalid user accessKey:"+clientInfo.AccessKey+"!!!")
return
}
if !user.CheckOnlineServiceNum() {
common.Write(conn, "0", "showandquit", "online service num cannot overstep "+strconv.Itoa(user.MaxOnlineServerNum))
return
}
if !user.CheckIpLimit(conn.RemoteAddr().(*net.TCPAddr).IP.String()) {
common.Write(conn, "0", "showandquit", "ip limit service num cannot overstep "+strconv.Itoa(user.MaxSameIPServers))
return
}
f := func() {
common.ServerName2Conn[ServerName] = conn
common.GetClientInfoByConn(conn, func(info *common.ClientInfo) {
info.ServerName = ServerName
info.IsServer = true
info.Id2MakeSession = make(map[string]*common.UDPMakeSession)
info.UserName = user.UserName
info.ClientKey = clientInfo.ClientKey
}, func() {})
log.Println("client reg service success", conn.RemoteAddr().String(), user.UserName, ServerName)
common.Write(conn, "0", "show", "register service ok, user:"******"force unregister service Name", server.ServerName)
if bUseDB {
user, _ := auth.GetUser(server.UserName)
if user != nil {
user.OnLogout()
}
}
delete(common.Conn2ClientInfo, _conn)
common.Write(_conn, "0", "showandquit", "some one kick you out")
_conn.Close()
f()
} else {
common.Write(conn, "0", "showandretry", "already have the ServerName!")
}
}, f)
} else if clientInfo.ClientType == "link" {
if clientInfo.Mode < 0 || clientInfo.Mode > 2 {
clientInfo.Mode = 0
}
ServerName := clientInfo.Name
bAuth := true
common.GetClientInfoByName(ServerName, func(info *common.ClientInfo) {
var user *auth.User
if bUseDB {
user, _ = auth.GetUser(info.UserName)
} else {
user = &auth.User{UserType: auth.UserType_Admin}
}
//fmt.Printf("%+v\n", user)
if user == nil {
common.Write(conn, "0", "showandquit", "invalid user:"******"!!!")
bAuth = false
return
}
if info.ClientKey != clientInfo.ClientKey {
common.Write(conn, "0", "showandquit", "clientkey invalid!!!")
bAuth = false
return
}
if !user.CheckSessionNum(len(info.ClientMap)) {
common.Write(conn, "0", "showandquit", "session numcannot overstep "+strconv.Itoa(len(info.ClientMap)))
bAuth = false
return
}
if !user.CheckPipeNum(clientInfo.PipeNum) {
common.Write(conn, "0", "showandquit", "pipenum cannot overstep "+strconv.Itoa(user.MaxPipeNum))
bAuth = false
return
}
}, func() {
common.Write(conn, "0", "showandquit", "serverName invalid!!!")
bAuth = false
})
if !bAuth {
return
}
common.GetClientInfoByConn(conn, func(client *common.ClientInfo) {
client.ServerName = ServerName
}, func() {
})
common.GetClientInfoByName(ServerName, func(server *common.ClientInfo) {
log.Println("client link service success", conn.RemoteAddr().String(), ServerName)
server.AddClient(conn, clientInfo)
}, func() {
common.Write(conn, "0", "showandquit", "donnt have this service name")
})
}
case "tunnel_error":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
log.Println("<<=====tunnel_error", server.ServerName, conn.RemoteAddr().String())
session, bHave := server.Id2Session[id]
if bHave {
session.Status = "fail"
common.Write(session.ClientA, "0", "showandquit", content)
server.DelClient(session.ClientA)
}
}, func() {
})
case "makeholefail":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
udpsession, bHave := server.Id2MakeSession[id]
if bHave {
log.Println("<<=====make hole fail", conn.RemoteAddr().String(), udpsession.ServerName, udpsession.SessionId, id)
sessionId := udpsession.SessionId
session, _bHave := server.Id2Session[sessionId]
if _bHave {
session.Status = "fail"
session.MakeHoleResponseN++
session.MakeHoleHasFail = true
if session.MakeHoleResponseN == session.Setting.PipeNum {
if session.Method == "udp" {
session.RestartSession(server.ServerName)
} else if session.Method == "restart" {
if session.Setting.Mode == 0 {
tmp := session.ClientA
session.ClientA = session.ClientB
session.ClientB = tmp
session.StartCSMode()
} else {
server.DelClient(session.ClientB)
}
} else {
server.DelClient(session.ClientA)
}
}
}
udpsession.Remove(false)
}
}, func() {
})
case "makeholeok":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
if content == "csmode" {
session, _bHave := server.Id2Session[id]
if _bHave {
log.Println("<<=====make hole ok", conn.RemoteAddr().String(), server.ServerName, session.Id)
session.Status = "ok"
session.MakeHoleResponseN++
}
}
udpsession, bHave := server.Id2MakeSession[id]
if bHave {
log.Println("<<=====make hole ok", conn.RemoteAddr().String(), udpsession.ServerName, udpsession.SessionId, id)
sessionId := udpsession.SessionId
session, _bHave := server.Id2Session[sessionId]
if _bHave {
session.MakeHoleResponseN++
if session.MakeHoleResponseN == session.Setting.PipeNum {
if !session.MakeHoleHasFail {
session.Status = "ok"
}
}
}
udpsession.Remove(false)
}
}, func() {
})
case "report_addrlist":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
udpsession, bHave := server.Id2MakeSession[id]
//log.Println("test", udpsession, id, server.ServerName)
if bHave {
log.Println("<<===report addr list ok", conn.RemoteAddr().String(), udpsession.ServerName, udpsession.Id)
udpsession.BeginMakeHole(1, content)
}
}, func() {
})
case "success_bust_a":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
udpsession, bHave := server.Id2MakeSession[id]
if bHave {
log.Println("<<=====success_bust_a", conn.RemoteAddr().String(), udpsession.ServerName, udpsession.SessionId, id)
udpsession.BeginMakeHole(2, content)
}
}, func() {
})
// for c/s mode
case "tunnel_close":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
session := server.GetSession(conn)
if session != nil {
common.Write(session.ClientB, session.Id+"-"+id, "csmode_s_tunnel_close", content)
} else {
println("no session")
}
}, func() {
})
case "tunnel_open":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
session := server.GetSession(conn)
if session != nil {
common.Write(session.ClientB, session.Id+"-"+id, "csmode_s_tunnel_open", content)
} else {
println("no session")
}
}, func() {
})
case "tunnel_msg_c":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
var user *auth.User
if bUseDB {
user, _ = auth.GetUser(server.UserName)
} else {
user = &auth.User{UserType: auth.UserType_Admin}
}
if user == nil {
common.Write(conn, "0", "showandquit", "cannot get userinfo of this service "+server.UserName)
return
}
if !user.UpdateCSMode(len(content)) {
common.Write(conn, "0", "showandquit", "reach today's csmode data limit")
return
}
session := server.GetSession(conn)
if session != nil {
common.Write(session.ClientB, session.Id+"-"+id, "csmode_msg_c", content)
} else {
println("no session")
}
}, func() {
})
case "tunnel_msg_s":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
var user *auth.User
if bUseDB {
user, _ = auth.GetUser(server.UserName)
} else {
user = &auth.User{UserType: auth.UserType_Admin}
}
if user == nil {
common.Write(conn, "0", "showandquit", "cannot get userinfo of this service"+server.UserName)
return
}
if !user.UpdateCSMode(len(content)) {
common.Write(conn, "0", "show", "reach today's csmode data limit")
return
}
arr := strings.Split(id, "-")
clientId := arr[0]
session, bHave := server.Id2Session[clientId]
if bHave {
common.Write(session.ClientA, id, "csmode_msg_s", content)
} else {
println("no session")
}
}, func() {
})
case "tunnel_close_s":
common.GetServerInfoByConn(conn, func(server *common.ClientInfo) {
arr := strings.Split(id, "-")
clientId := arr[0]
session, bHave := server.Id2Session[clientId]
if bHave {
common.Write(session.ClientA, id, "csmode_c_tunnel_close", content)
} else {
println("no session")
}
}, func() {
})
}
}