127 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			127 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package ak
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import (
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	"crypto/tls"
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	"fmt"
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	"net/http"
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	"net/url"
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	"os"
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	"strings"
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	"time"
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	"github.com/go-openapi/strfmt"
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	"github.com/gorilla/websocket"
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	"github.com/recws-org/recws"
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	"goauthentik.io/internal/constants"
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)
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func (ac *APIController) initWS(akURL url.URL, outpostUUID strfmt.UUID) {
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	pathTemplate := "%s://%s/ws/outpost/%s/"
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	scheme := strings.ReplaceAll(akURL.Scheme, "http", "ws")
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	authHeader := fmt.Sprintf("Bearer %s", ac.token)
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	header := http.Header{
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		"Authorization": []string{authHeader},
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		"User-Agent":    []string{constants.OutpostUserAgent()},
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	}
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	value, set := os.LookupEnv("AUTHENTIK_INSECURE")
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	if !set {
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		value = "false"
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	}
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	ws := &recws.RecConn{
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		NonVerbose: true,
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		TLSClientConfig: &tls.Config{
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			InsecureSkipVerify: strings.ToLower(value) == "true",
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		},
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	}
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	ws.Dial(fmt.Sprintf(pathTemplate, scheme, akURL.Host, outpostUUID.String()), header)
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	ac.logger.WithField("logger", "authentik.outpost.ak-ws").WithField("outpost", outpostUUID.String()).Debug("connecting to authentik")
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	ac.wsConn = ws
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	// Send hello message with our version
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	msg := websocketMessage{
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		Instruction: WebsocketInstructionHello,
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		Args: map[string]interface{}{
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			"version":   constants.VERSION,
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			"buildHash": constants.BUILD(),
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			"uuid":      ac.instanceUUID.String(),
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		},
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	}
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	err := ws.WriteJSON(msg)
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	if err != nil {
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		ac.logger.WithField("logger", "authentik.outpost.ak-ws").WithError(err).Warning("Failed to hello to authentik")
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	}
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}
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// Shutdown Gracefully stops all workers, disconnects from websocket
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func (ac *APIController) Shutdown() {
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	// Cleanly close the connection by sending a close message and then
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	// waiting (with timeout) for the server to close the connection.
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	err := ac.wsConn.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
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	if err != nil {
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		ac.logger.Println("write close:", err)
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		return
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	}
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}
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func (ac *APIController) startWSHandler() {
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	logger := ac.logger.WithField("loop", "ws-handler")
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	for {
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		var wsMsg websocketMessage
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		err := ac.wsConn.ReadJSON(&wsMsg)
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		if err != nil {
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			logger.WithError(err).Warning("ws write error, reconnecting")
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			ac.wsConn.CloseAndReconnect()
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			time.Sleep(time.Second * 5)
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			continue
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		}
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		if wsMsg.Instruction == WebsocketInstructionTriggerUpdate {
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			time.Sleep(ac.reloadOffset)
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			logger.Debug("Got update trigger...")
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			err := ac.Server.Refresh()
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			if err != nil {
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				logger.WithError(err).Debug("Failed to update")
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			}
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		}
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	}
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}
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func (ac *APIController) startWSHealth() {
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	ticker := time.NewTicker(time.Second * 10)
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	for ; true; <-ticker.C {
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		if !ac.wsConn.IsConnected() {
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			continue
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		}
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		aliveMsg := websocketMessage{
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			Instruction: WebsocketInstructionHello,
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			Args: map[string]interface{}{
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				"version":   constants.VERSION,
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				"buildHash": constants.BUILD(),
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				"uuid":      ac.instanceUUID.String(),
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			},
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		}
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		err := ac.wsConn.WriteJSON(aliveMsg)
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		ac.logger.WithField("loop", "ws-health").Trace("hello'd")
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		if err != nil {
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			ac.logger.WithField("loop", "ws-health").WithError(err).Warning("ws write error, reconnecting")
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			ac.wsConn.CloseAndReconnect()
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			continue
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		}
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	}
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}
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func (ac *APIController) startIntervalUpdater() {
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	logger := ac.logger.WithField("loop", "interval-updater")
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	ticker := time.NewTicker(5 * time.Minute)
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	for ; true; <-ticker.C {
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		err := ac.Server.Refresh()
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		if err != nil {
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			logger.WithError(err).Debug("Failed to update")
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		}
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	}
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}
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