148 lines
3.1 KiB
Go
148 lines
3.1 KiB
Go
package ws
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import (
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"log"
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"net/http"
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"time"
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"github.com/gorilla/websocket"
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)
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const (
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writeWait = 10 * time.Second
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pongWait = 60 * time.Second
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pingPeriod = (pongWait * 9) / 10
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maxMsgSize = 1024 * 1024 // 1MB
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)
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var upgrader = websocket.Upgrader{
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ReadBufferSize: 1024,
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WriteBufferSize: 1024,
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CheckOrigin: func(r *http.Request) bool {
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return true // Allow all origins in Phase 1
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},
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}
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// HandleDaemonWS handles WebSocket connections from daemons.
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func HandleDaemonWS(hub *Hub, apiKey string) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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// Authenticate
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key := r.Header.Get("X-API-Key")
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if key != apiKey {
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http.Error(w, "unauthorized", http.StatusUnauthorized)
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return
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}
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Printf("WebSocket upgrade failed: %v", err)
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return
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}
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machineID := r.Header.Get("X-Machine-ID")
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if machineID == "" {
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machineID = "default"
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}
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client := &Client{
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Type: ClientDaemon,
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ID: machineID,
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Conn: conn,
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Send: make(chan []byte, 256),
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Hub: hub,
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}
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hub.Register(client)
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go clientWritePump(client)
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go clientReadPump(client)
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}
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}
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// HandleDashboardWS handles WebSocket connections from dashboards.
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func HandleDashboardWS(hub *Hub, token string) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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// Authenticate via query param or header
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t := r.URL.Query().Get("token")
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if t == "" {
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t = r.Header.Get("Authorization")
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}
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if t != token && t != "Bearer "+token {
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http.Error(w, "unauthorized", http.StatusUnauthorized)
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return
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}
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Printf("WebSocket upgrade failed: %v", err)
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return
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}
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client := &Client{
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Type: ClientDashboard,
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Conn: conn,
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Send: make(chan []byte, 256),
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Hub: hub,
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}
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hub.Register(client)
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go clientWritePump(client)
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go clientReadPump(client)
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}
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}
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func clientReadPump(client *Client) {
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defer func() {
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client.Hub.Unregister(client)
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client.Conn.Close()
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}()
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client.Conn.SetReadLimit(maxMsgSize)
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client.Conn.SetReadDeadline(time.Now().Add(pongWait))
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client.Conn.SetPongHandler(func(string) error {
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client.Conn.SetReadDeadline(time.Now().Add(pongWait))
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return nil
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})
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for {
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_, message, err := client.Conn.ReadMessage()
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if err != nil {
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if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseNormalClosure) {
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log.Printf("WebSocket read error: %v", err)
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}
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return
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}
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client.Hub.HandleMessage(client, message)
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}
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}
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func clientWritePump(client *Client) {
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ticker := time.NewTicker(pingPeriod)
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defer func() {
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ticker.Stop()
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client.Conn.Close()
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}()
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for {
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select {
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case message, ok := <-client.Send:
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client.Conn.SetWriteDeadline(time.Now().Add(writeWait))
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if !ok {
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client.Conn.WriteMessage(websocket.CloseMessage, []byte{})
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return
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}
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if err := client.Conn.WriteMessage(websocket.TextMessage, message); err != nil {
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return
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}
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case <-ticker.C:
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client.Conn.SetWriteDeadline(time.Now().Add(writeWait))
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if err := client.Conn.WriteMessage(websocket.PingMessage, nil); err != nil {
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return
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}
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}
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}
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}
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