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2d5fa692d3
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2faa95c162
4 changed files with 27 additions and 29 deletions
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@ -12,7 +12,6 @@ import (
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// Sends continous messages to all connected WebSocket clients
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// Sends continous messages to all connected WebSocket clients
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func SendPermanentBroadCastMessage() {
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func SendPermanentBroadCastMessage() {
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tick := time.NewTicker(time.Second)
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tick := time.NewTicker(time.Second)
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for {
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for {
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// Marshal the message into JSON format
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// Marshal the message into JSON format
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jsonMessage, err := json.Marshal(shared.State)
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jsonMessage, err := json.Marshal(shared.State)
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@ -25,9 +24,7 @@ func SendPermanentBroadCastMessage() {
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mu.Lock()
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mu.Lock()
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for _, client := range Clients {
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for _, client := range Clients {
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// Send message to client
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// Send message to client
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err := client.SendMessage(websocket.TextMessage, jsonMessage)
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client.Conn.SetWriteDeadline(time.Now().Add(SEND_TIMEOUT * time.Second))
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err := client.Conn.WriteMessage(websocket.TextMessage, jsonMessage)
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if err != nil {
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if err != nil {
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helper.Logger.Info("Error broadcasting to client:", "msg", err, "host", client.RealIP, "clients", len(Clients))
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helper.Logger.Info("Error broadcasting to client:", "msg", err, "host", client.RealIP, "clients", len(Clients))
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}
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}
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@ -2,35 +2,17 @@ package websocket
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import (
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import (
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"time"
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"time"
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"git.smsvc.net/pomodoro/GoTomato/pkg/models"
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"github.com/gorilla/websocket"
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)
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)
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func sendPing(client *models.WebsocketClient) bool {
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client.Conn.SetWriteDeadline(time.Now().Add(SEND_TIMEOUT * time.Second))
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err := client.Conn.WriteMessage(websocket.PingMessage, nil)
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if err != nil {
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return false
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}
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return true
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}
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func isStale(client *models.WebsocketClient) bool {
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return time.Since(client.LastPong) > (STALE_CLIENT_TIMEOUT * time.Second)
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}
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// Check and remove stale clients
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// Check and remove stale clients
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func RemoveStaleClients() {
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func RemoveStaleClients() {
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ticker := time.NewTicker(CHECK_INTERVALL * time.Second)
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ticker := time.NewTicker(30 * time.Second)
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defer ticker.Stop()
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defer ticker.Stop()
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for range ticker.C {
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for range ticker.C {
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mu.Lock()
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mu.Lock()
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for _, client := range Clients {
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for _, client := range Clients {
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if !sendPing(client) || isStale(client) {
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if client.IsStale() {
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client.Conn.Close()
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client.Conn.Close()
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delete(Clients, client.Conn.LocalAddr())
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delete(Clients, client.Conn.LocalAddr())
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}
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}
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@ -1,5 +0,0 @@
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package websocket
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const SEND_TIMEOUT = 10
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const STALE_CLIENT_TIMEOUT = 90
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const CHECK_INTERVALL = 30
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@ -6,6 +6,8 @@ import (
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"github.com/gorilla/websocket"
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"github.com/gorilla/websocket"
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)
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)
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const TIMEOUT = 10
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// Represents a command from the client (start/stop)
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// Represents a command from the client (start/stop)
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type ClientCommand struct {
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type ClientCommand struct {
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Command string `json:"command"` // Command send to the server
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Command string `json:"command"` // Command send to the server
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@ -19,3 +21,25 @@ type WebsocketClient struct {
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LastPong time.Time
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LastPong time.Time
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RealIP string
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RealIP string
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}
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}
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// Sends a message to the websocket.
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func (c *WebsocketClient) SendMessage(messageType int, data []byte) error {
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c.Conn.SetWriteDeadline(time.Now().Add(TIMEOUT * time.Second))
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err := c.Conn.WriteMessage(websocket.PingMessage, nil)
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if err != nil {
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return err
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}
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c.Conn.SetWriteDeadline(time.Now().Add(TIMEOUT * time.Second))
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err = c.Conn.WriteMessage(messageType, data)
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if err != nil {
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return err
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}
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return nil
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}
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// Checks if the websockets last Pong is recent
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func (c *WebsocketClient) IsStale() bool {
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return time.Since(c.LastPong) > (TIMEOUT * time.Second)
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}
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