func ListenIPForwardAndWebsocketServ(forwardHostAndPort, websocketHostAndPort string, conf *Config) {
if conf == nil {
panic("config is nil.")
}
pConfig = conf
if pConfig.Auth != "" {
pConfig.Auth = fmt.Sprintf("Basic %s", base64.StdEncoding.EncodeToString([]byte(pConfig.Auth)))
}
go listenWebsocketServ(websocketHostAndPort, ctrl.WEBSOCKET_CONNECT_URI, WEBSOCKET_CONTORL_URI)
l, err := net.Listen("tcp", forwardHostAndPort)
if err != nil {
log.Error(err.Error())
}
defer l.Close()
log.Debug("IP Forward Listening TCP[%s]", forwardHostAndPort)
for {
conn, err := l.Accept()
if err != nil {
log.Error("IP-Forward Accept err=%s", err.Error())
continue
}
// handle socket data recv and send
go ipforward(conn)
}
log.Info("ListenAndIPForwardServ exit.")
}
func WebsocketHandler(w http.ResponseWriter, r *http.Request) {
log.Info("WebsocketHandler:%s %s %s", r.RemoteAddr, r.Method, r.URL.Path)
if !authOK(r) {
log.Warn("auth fail....")
noAuthResponse(w)
return
}
var conn *websocket.Conn
conn, err := websocket.Upgrade(w, r, http.Header{})
if err != nil {
log.Error(err.Error())
return
}
conn.SetReadDeadline(time.Time{})
conn.SetWriteDeadline(time.Time{})
var client = newWebsocketClient(conn, r)
if pConfig.client_conf_forward_host == "" {
log.Info("pConfig.client_conf_forward_host is empty. tell Client Need the Config.")
client.tellClientNeedConfig()
}
log.Info("Put[%s] into the global Connect pool.", client)
client.waitForFrameLoop()
websocketClose(r)
log.Debug("WebsocketHandler:%s closed.", r.RemoteAddr)
}
func (c *Client) newConnect2LoalNetwork() error {
if pConfig.currThread < pConfig.MaxThread {
go Connect2Serv(pConfig.orwardServ, pConfig)
}
// 与本地局域网服务器g_localForwardHostAndPort 建立socket连接
c.rw.Lock()
defer c.rw.Unlock()
if c.localConn != nil {
log.Warn("[%s], thread is busy. can not create new connect.", c)
c.tellServBusy()
return fmt.Errorf("[%s] thread is busy. can not create new connect.", c)
}
conn, err := net.Dial("tcp", g_localForwardHostAndPort)
if err != nil {
log.Error("[%s] Connect to[%s] err=%s", c, g_localForwardHostAndPort, err.Error())
c.tellServError(err)
return err
}
go c.readForward(conn)
c.localConn = &conn
c.forwardData = make(chan []byte, Default_Channel_Size*4)
go c.writerForward(conn)
log.Info("new connection was create [%s]", conn.RemoteAddr())
return nil
}
func bindConnection(conn net.Conn) error {
// 与一个websocket 绑定一个连接
client, err := getFreeClient()
if err != nil {
return err
}
client.writerForward = conn.(io.WriteCloser)
client.tellClientNewConnection()
reader := conn.(io.Reader)
p := make([]byte, 4096)
for {
n, err := reader.Read(p)
if err != nil {
if err != io.EOF {
log.Error("Reading data from[%s] err=%s", conn.RemoteAddr(), err.Error())
}
client.closeWriter()
break
}
client.websocket.Write(p[:n], true)
}
log.Info("BindConnection Request finish.")
return nil
}
func (client *wsClient) waitForFrameLoop() {
for {
frameType, bFrame, err := client.websocket.Read()
log.Debug("TCP[%s] recv WebSocket Frame typ=[%v] size=[%d], crc32=[%d]",
client, frameTypStr(frameType), len(bFrame), crc32.ChecksumIEEE(bFrame))
if err != nil {
if err != io.ErrUnexpectedEOF {
log.Error("TCP[%s] close Unexpected err=%v", client, err.Error())
} else {
log.Debug("TCP[%s] close the socket. EOF.", client)
}
client.closeWriter()
return
}
switch frameType {
case websocket.TextMessage:
client.handlerControlMessage(bFrame)
case websocket.CloseMessage:
log.Info("TCP[%s] close Frame revced. end wait Frame loop", client)
client.closeWriter()
return
case websocket.BinaryMessage:
log.Info("TCP[%s] resv-binary: %v", client, len(bFrame))
if client.writerForward == nil {
log.Warn("client.writerForward is nil.")
continue
}
_, err := client.writerForward.Write(bFrame)
if err != nil {
if err != io.EOF {
log.Error(err.Error())
}
client.tellClientRequestFinish()
client.closeWriter()
}
case websocket.PingMessage, websocket.PongMessage: // IE-11 会无端端发一个pong上来
client.websocket.Pong(bFrame)
default:
log.Warn("TODO: revce frame-type=%v. can not handler. content=%v", frameTypStr(frameType), string(bFrame))
}
}
}
func (this *Connect) Send(status int, value interface{}) error {
if _, ok := value.(error); ok {
log.Error("linuNum -> %d : %v", status, value)
}
this.Chan <- ReturnStr(this.Request, status, value)
//this.Request = nil
return nil
}
func (ctrl *WebSocketControlFrame) Bytes() []byte {
bytes, err := json.Marshal(ctrl)
if err != nil {
panic(err.Error())
log.Error("JSON format err=", err.Error())
return []byte("")
}
return bytes
}
func ppLogin(ppToken string) string {
if len(ppToken) != 32 {
return ""
}
pp_id := 4335
app_key := "8dbbcdf221234073ccd75b1a277f7255"
url := "http://passport_i.25pp.com:8080/account?tunnel-command=2852126760"
m := md5.New()
m.Write([]byte("sid=" + ppToken + app_key))
sign := hex.EncodeToString(m.Sum(nil))
postData := `{"data":{"sid":"%s"},"encrypt":"MD5","game":{"gameId":%d},"id":%d,"service":"account.verifySession","sign":"%s"}`
postData = fmt.Sprintf(postData, ppToken, pp_id, time.Now().Unix(), sign)
client := new(http.Client)
resp, err := client.Post(url, "application/x-www-form-urlencoded", strings.NewReader(postData))
if err != nil {
log.Error("PPLOGIN ERROR , line: %d", lineNum())
return ""
}
body, _ := ioutil.ReadAll(resp.Body)
resp.Body.Close()
var jsonData map[string]interface{}
if json.Unmarshal(body, &jsonData) != nil {
log.Error("PPLOGIN ERROR , line: %d", lineNum())
return ""
}
code := jsonData["state"].(map[string]interface{})
if int(code["code"].(float64)) != 1 {
log.Error("PPLOGIN ERROR , line: %d", lineNum())
return ""
}
data := jsonData["data"].(map[string]interface{})
return data["accountId"].(string)
}
func (client *Client) waitForCommand() {
for {
frameType, bFrame, err := client.webSocket.Read()
log.Debug("TCP[%s] recv WebSocket Frame typ=[%v] size=[%d], crc32=[%d]",
client, frameTypStr(frameType), len(bFrame), crc32.ChecksumIEEE(bFrame))
if err != nil {
if err != io.ErrUnexpectedEOF {
log.Error("TCP[%s] close Unexpected err=%v", client, err.Error())
} else {
log.Debug("TCP[%s] close the socket. EOF.", client)
}
client.closeLocalConnect()
return
}
switch frameType {
case websocket.CloseMessage:
log.Info("TCP[%s] close Frame revced. end wait Frame loop", client)
client.closeLocalConnect()
return
case websocket.TextMessage:
err := client.handlerControlFrame(bFrame)
if err != nil {
log.Error("handlerControlFrame ret[%s]", err.Error())
}
case websocket.BinaryMessage:
log.Info("put Binary-Data to chan-len[%d]", len(client.forwardData))
select {
case client.forwardData <- bFrame:
log.Info("put frame to client.forwardData len[%d] end", len(client.forwardData))
default:
log.Warn("[%s] is busy", client)
client.tellServBusy()
}
case websocket.PingMessage, websocket.PongMessage: // IE-11 会无端端发一个pong上来
client.webSocket.Pong(bFrame)
default:
log.Warn("TODO: revce frame-type=%v. can not handler. content=%v", frameTypStr(frameType), string(bFrame))
}
}
}
func ipforward(c net.Conn) {
//只支持 TCP 协议的 Forward，如http,ssh
log.Debug("new connect [%s]", c.RemoteAddr())
defer c.Close()
err := bindConnection(c)
if err != nil {
c.Write([]byte(err.Error())) //c maybe closed.
log.Error("Forward PutConnection err=%s", err.Error())
}
}
func Connect2Serv(forwardServ string, conf *Config) {
if conf == nil {
panic("config is nil.")
}
// global pConfig
pConfig = conf
pConfig.orwardServ = forwardServ
var localServ, auth = conf.LocalHostServ, conf.WebsocketAuth
setLocalForardHostAndPort(localServ)
websockURI := ctrl.WEBSOCKET_CONNECT_URI
log.Info("start TCP connect to[%s]", forwardServ)
conn, err := net.Dial("tcp", forwardServ)
if err != nil {
log.Error("connect[%s] fail err=[%s]", forwardServ, err.Error())
return
}
var headers http.Header
if auth != "" {
headers = http.Header{}
headers.Add("Authorization", fmt.Sprintf("Basic %s", base64.StdEncoding.EncodeToString([]byte(auth))))
}
log.Info("start websocket NewClient to[%s][%s]", forwardServ, websockURI)
ws, _, err := websocket.NewClient(conn, &url.URL{Host: forwardServ, Path: websockURI}, headers)
if err != nil {
log.Error("Connect to[%s] err=%s", forwardServ, err.Error())
return
}
client := NewClient(ws)
log.Info("Connect[%s] success at[%s], wait for server command.", forwardServ, client)
pConfig.currThread++
client.waitForCommand()
pConfig.currThread--
log.Info("client thread exist.")
}
func login91(uin string, session string) error {
appId := 100
appKey := ""
sign := strconv.Itoa(appId) + "4" + uin + session + appKey
m := md5.New()
m.Write([]byte(sign))
sign = hex.EncodeToString(m.Sum(nil))
url := "http://service.sj.91.com/usercenter/ap.aspx?AppId=%d&Act=4&Uin=%s&SessionId=%s&Sign=" + sign
url = fmt.Sprintf(url, appId, uin, session)
client := new(http.Client)
resp, err := client.Get(url)
if err != nil {
log.Error("91LOGIN ERROR , line: %d , %v", lineNum(), err)
return err
}
body, _ := ioutil.ReadAll(resp.Body)
resp.Body.Close()
var jsonData map[string]string
if err = json.Unmarshal(body, &jsonData); err != nil {
log.Error("91LOGIN ERROR , line: %d , %v", lineNum(), err)
return err
}
if jsonData["ErrorCode"] != "1" {
err = fmt.Errorf("ErrorCode != 1")
log.Error("91LOGIN ERROR , line: %d , %v", lineNum(), err)
return err
}
return nil
}
// 从客户端读取信息
func (this *Connect) PullFromClient() {
for {
defer func() {
if err := recover(); err != nil {
log.Critical("Panic occur. %v", err)
this.Send(lineNum(), fmt.Sprintf("%v", err))
this.PullFromClient()
}
}()
var content []byte
err := websocket.Message.Receive(this.Conn, &content)
if err != nil {
log.Info("Websocket Error: %v", err)
playerMap.Delete(this.Uid, this)
return
}
beginTime := time.Now()
log.Info(" Begin ")
// parse proto message
this.Request, err = ParseContent(content)
if err != nil {
log.Error("Parse client request error. %v", err)
this.Send(lineNum(), err)
continue
}
if this.Request.GetCmdId() != LOGIN {
if !this.verify(this.Request.GetTokenStr()) {
continue
}
}
this.Function(this.Request.GetCmdId())()
execTime := time.Now().Sub(beginTime)
if execTime.Seconds() > 0.1 {
// slow log
log.Warn("Slow Exec , time is %v second", execTime.Seconds())
} else {
log.Info("time is %v second", execTime.Seconds())
}
}
}
func (c *Client) readForward(reader io.Reader) {
// 从本地局域网连接中读取到数据，通过websocket的Binary帧方式发给服务器
p := make([]byte, Default_Buffer_Size)
var err error
for {
n, err := reader.Read(p)
if err != nil {
break
}
c.Write(p[:n])
}
if err != nil && err != io.EOF {
log.Error("Write to Local-network err=%s", err.Error())
}
c.closeLoalNetworkConnection(true)
log.Info("end reader forward.")
}
func (c *Client) writerForward(writer io.Writer) {
buff := make([]byte, Default_Buffer_Size)
var err error
for {
buff = <-c.forwardData
_, err = writer.Write(buff)
if err != nil {
break
}
}
if err != nil && err != io.EOF {
log.Error("Write to Local-network err=%s", err.Error())
}
c.closeLoalNetworkConnection(false)
log.Info("end writer forward.")
}
func otherLogin(platId int, otherId, session, sign, otherData string) (string, bool) {
if platId == 0 {
return otherId, true
}
Lua, err := lua.NewLua(fmt.Sprintf("lua/plat_%d.lua", platId))
if err != nil {
log.Error("LUA ERROR : login.go line - 60")
return "0", false
}
Lua.L.GetGlobal("isLogin")
Lua.L.DoString(fmt.Sprintf("uid, isLogin = isLogin('%s', '%s', '%s', '%s')", otherId, session, sign, otherData))
uid := Lua.GetString("uid")
isLogin := Lua.GetBool("isLogin")
Lua.Close()
return uid, isLogin
}
func listenWebsocketServ(hostAndPort string, websocketURI, contorlURI string) {
// TODO：连接认证
http.HandleFunc(websocketURI, WebsocketHandler)
http.HandleFunc(contorlURI, httpAdminHandler)
http.HandleFunc("/api/", httpApiHandler)
log.Info("Websocket Listen in TCP[%s]", hostAndPort)
svr := &http.Server{
Addr: hostAndPort,
Handler: nil,
ReadTimeout: 0 * time.Second,
WriteTimeout: 0 * time.Second,
MaxHeaderBytes: 1 << 20, // 1M
}
err := svr.ListenAndServe()
if err != nil {
log.Error("ListenAndServe[%v], err=[%v]", hostAndPort, err.Error())
}
log.Info("ListenWebsocketServ exit.")
}
func (c *Client) handlerControlFrame(bFrame []byte) (err error) {
msg := ctrl.WebSocketControlFrame{}
if err = json.Unmarshal(bFrame, &msg); err != nil {
log.Error("Recve a Text-Frame not JSON format. err=%v, frame=%v", err.Error(), string(bFrame))
return err
}
log.Info("TCP[%v] Get Frame T[%v], Content=%v, index=%v, ", c, msg.TypeStr(), msg.Content, msg.Index)
switch msg.Type {
case ctrl.Msg_New_Connection:
c.newConnect2LoalNetwork()
case ctrl.Msg_Request_Finish:
c.closeLocalConnect()
case ctrl.Msg_Get_Config:
err = c.telServConfig()
case ctrl.Msg_Set_Config:
pConfig.LocalHostServ = msg.Content
err = c.telServConfig()
default:
log.Warn("no handler Msg T[%s]", msg.TypeStr())
}
return err
}
