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Copy pathuserwebsocket.go
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144 lines (129 loc) · 3 KB
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package httpd
import (
"context"
"encoding/json"
"time"
"github.com/gin-gonic/gin"
"github.com/jumpserver/koko/pkg/httpd/ws"
"github.com/jumpserver/koko/pkg/logger"
"github.com/jumpserver/koko/pkg/model"
)
type Handler interface {
Name() string
CheckValidation() bool
HandleMessage(*Message)
CleanUp()
}
type UserWebsocket struct {
Uuid string
webSrv *server
conn *ws.Socket
ctx *gin.Context
messageChannel chan *Message
user *model.User
handler Handler
}
func (userCon *UserWebsocket) Run() {
if userCon.handler == nil {
return
}
ctx, cancel := context.WithCancel(userCon.ctx.Request.Context())
defer cancel()
errorsChan := make(chan error, 1)
go userCon.writeMessageLoop(ctx)
go func() {
select {
case errorsChan <- userCon.readMessageLoop():
case <-ctx.Done():
}
}()
if !userCon.handler.CheckValidation() {
return
}
userCon.sendConnectMessage()
var errMsg string
select {
case err := <-errorsChan:
if err != nil {
errMsg = err.Error()
}
case <-ctx.Done():
}
userCon.handler.CleanUp()
logger.Infof("Ws[%s] done with exit %s", userCon.Uuid, errMsg)
}
func (userCon *UserWebsocket) writeMessageLoop(ctx context.Context) {
active := time.Now()
t := time.NewTicker(time.Minute)
defer t.Stop()
for {
var msg *Message
select {
case <-ctx.Done():
logger.Infof("Ws[%s] end send message", userCon.Uuid)
return
case tickNow := <-t.C:
if tickNow.Before(active.Add(time.Second * 30)) {
continue
}
if tickNow.After(active.Add(maxWriteTimeOut)) {
logger.Infof("Ws[%s] inactive more than 5 minutes and close conn", userCon.Uuid)
_ = userCon.conn.Close()
continue
}
msg = &Message{
Id: userCon.Uuid,
Type: PING,
}
case msg = <-userCon.messageChannel:
}
p, _ := json.Marshal(msg)
err := userCon.conn.WriteText(p, maxWriteTimeOut)
if err != nil {
logger.Errorf("Ws[%s] send %s message err: %s", userCon.Uuid, msg.Type, err)
continue
}
active = time.Now()
}
}
func (userCon *UserWebsocket) SendMessage(msg *Message) {
userCon.messageChannel <- msg
}
func (userCon *UserWebsocket) sendConnectMessage() {
msg := Message{
Id: userCon.Uuid,
Type: CONNECT,
}
userCon.SendMessage(&msg)
}
func (userCon *UserWebsocket) readMessageLoop() error {
for {
p, _, err := userCon.conn.ReadData(maxReadTimeout)
if err != nil {
logger.Errorf("Ws[%s] read data err: %s", userCon.Uuid, err)
return err
}
var msg Message
err = json.Unmarshal(p, &msg)
if err != nil {
logger.Errorf("Ws[%s] message data unmarshal err: %s", userCon.Uuid, p)
continue
}
switch msg.Type {
case PING, PONG:
logger.Debugf("Ws[%s] receive %s message", userCon.Uuid, msg.Type)
continue
default:
userCon.handler.HandleMessage(&msg)
}
}
}
func (userCon *UserWebsocket) GetHandler() Handler {
return userCon.handler
}
func (userCon *UserWebsocket) ClientIP() string {
return userCon.ctx.ClientIP()
}
func (userCon *UserWebsocket) CurrentUser() *model.User {
return userCon.user
}