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client.go
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client.go
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package client
import (
"DY-DanMu/DMconfig/config"
"DY-DanMu/persistServer/item"
_type "DY-DanMu/spider/DYtype"
"fmt"
"github.com/gorilla/websocket"
Log "github.com/sirupsen/logrus"
"log"
"time"
)
/* DyBarrageWebSocketClientInterface: 通过斗鱼open文档
https://open.douyu.com/source/api/63 进行弹幕服务器连接抓取
*/
type DyBarrageWebSocketClientInterface interface {
Start()
Stop()
save(item map[string]string)
send(msg string) error
Init()
getOnMsg()
runForever()
login()
joinGroup()
startHeartbeat()
logout()
onError(err error)
}
//DyBarrageWebSocketClient:斗鱼弹幕服务器连接端
type DyBarrageWebSocketClient struct {
ws *websocket.Conn
MsgBreakers _type.CodeBreakershandler
__should_stop_heartbeat bool
Config *config.DMconfig
sentry chan int
ItemIn chan item.Item
}
func (d *DyBarrageWebSocketClient) Init() {
dial, _, err := websocket.DefaultDialer.Dial(d.Config.Url, nil)
if err != nil {
panic(err)
}
d.ws = dial
d.sentry = make(chan int)
d.__should_stop_heartbeat = false
}
//Start:启动
func (d *DyBarrageWebSocketClient) Start() {
d.runForever()
}
//Stop:停止
func (d *DyBarrageWebSocketClient) Stop() {
d.ws.Close()
d.logout()
}
//send:发送编码过的数据到socket服务器
func (d *DyBarrageWebSocketClient) send(msg string) error {
err := d.ws.WriteMessage(websocket.TextMessage, d.MsgBreakers.Encode(msg))
return err
}
//save:保存数据
func (d *DyBarrageWebSocketClient) save(res map[string]string) {
items := item.Item{
Rid: res["rid"],
Id: res["cid"],
Payload: res,
}
d.ItemIn <- items
}
//getOnMsg:从DY服务器端获取弹幕赫尔状态进行解析
func (d *DyBarrageWebSocketClient) getOnMsg() {
for {
status, message, err := d.ws.ReadMessage()
if err != nil {
log.Println("read:", err)
d.onError(err)
continue
}
switch {
case status == 0:
fmt.Println(status)
case (status == 1):
fmt.Println(message)
case (status == 2):
messages := d.MsgBreakers.GetChatMessages(message)
for _, msg := range messages {
go d.save(msg)
}
case (status == 8):
d.Stop()
default:
fmt.Println(status)
}
}
}
//runForever:程序入口
func (d *DyBarrageWebSocketClient) runForever() {
d.login()
d.joinGroup()
go d.startHeartbeat()
go d.getOnMsg()
<-d.sentry
}
//login:发送登录信息
func (d *DyBarrageWebSocketClient) login() {
err := d.send(fmt.Sprintf(d.Config.LoginMsg, d.Config.Rid, "61609154", "61609154"))
if err != nil {
panic(err)
}
}
//joinGroup:加入服务器端群组中
func (d *DyBarrageWebSocketClient) joinGroup() {
err := d.ws.WriteMessage(websocket.TextMessage, d.MsgBreakers.Encode(
fmt.Sprintf(d.Config.LoginJoinGroup, d.Config.Rid),
))
if err != nil {
panic(err)
}
}
//startHeartbeat:保持与服务端的心跳每45秒发送一次
func (d *DyBarrageWebSocketClient) startHeartbeat() {
heartbeat_msg := "type@=mrkl/"
heartbeat_msg_byte := d.MsgBreakers.Encode(heartbeat_msg)
for {
err := d.ws.WriteMessage(websocket.TextMessage, heartbeat_msg_byte)
for i := 0; i < 90; i++ {
time.Sleep(time.Microsecond * 500)
if err != nil {
log.Fatal(err)
}
if d.__should_stop_heartbeat {
d.ws.Close()
d.sentry <- 1
return
}
}
}
}
//logout:登出服务器
func (d *DyBarrageWebSocketClient) logout() {
logoutMsg := "type@=logout/"
logoutMsgByte := d.MsgBreakers.Encode(logoutMsg)
d.__should_stop_heartbeat = true
log.Println(logoutMsgByte)
}
//onError:处理异常
func (d *DyBarrageWebSocketClient) onError(err error) {
Log.Warnf("socker error! %s", err)
d.ws.Close()
dial, _, err := websocket.DefaultDialer.Dial(d.Config.Url, nil)
if err != nil {
panic(err)
}
d.ws = dial
d.login()
d.joinGroup()
}