118 lines
3.2 KiB
Go
118 lines
3.2 KiB
Go
package server
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import (
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"crypto/tls"
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"encoding/base64"
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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/BeryJu/passbook/proxy/pkg"
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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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)
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func (ac *APIController) initWS(pbURL url.URL, outpostUUID strfmt.UUID) {
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pathTemplate := "%s://%s/ws/outpost/%s/"
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scheme := strings.ReplaceAll(pbURL.Scheme, "http", "ws")
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authHeader := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("Basic :%s", ac.token)))
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header := http.Header{
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"Authorization": []string{authHeader},
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"User-Agent": []string{fmt.Sprintf("passbook-proxy@%s", pkg.VERSION)},
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}
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value, set := os.LookupEnv("PASSBOOK_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, pbURL.Host, outpostUUID.String()), header)
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ac.logger.WithField("component", "ws").WithField("outpost", outpostUUID.String()).Debug("connecting to passbook")
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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": pkg.VERSION,
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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("component", "ws").WithError(err).Warning("Failed to hello to passbook")
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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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return
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}
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func (ac *APIController) startWSHandler() {
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notConnectedBackoff := 1
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for {
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if !ac.wsConn.IsConnected() {
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notConnectedWait := time.Duration(notConnectedBackoff) * time.Second
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ac.logger.WithField("loop", "ws-handler").WithField("wait", notConnectedWait).Info("Not connected, trying again...")
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time.Sleep(notConnectedWait)
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notConnectedBackoff += notConnectedBackoff
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continue
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}
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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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ac.logger.WithField("loop", "ws-handler").Println("read:", err)
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ac.wsConn.CloseAndReconnect()
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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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err := ac.UpdateIfRequired()
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if err != nil {
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ac.logger.WithField("loop", "ws-handler").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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for ; true; <-time.Tick(time.Second * 10) {
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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": pkg.VERSION,
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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").Debug("hello'd")
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if err != nil {
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ac.logger.WithField("loop", "ws-health").Println("write:", err)
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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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