Don't block on unanswered IQs.

CHANGELOG.md

@@ -7,6 +7,7 @@
 - Improve file name for private Ox keys.
 - Improve fallback behavior if no SRV records are provided.
 - Remove 100ms sleep before closing the connection. This should be no more needed since go-xmpp commit 9684a8ff690f0d75e284f8845696c5057926d276.
+- Return an error if there is no answer to an IQ within 60s. 
 
 ## [v0.8.3] 2024-02-17
 ### Changed

stanzahandling.go

@@ -6,9 +6,11 @@ package main
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"log"
 	"runtime"
+	"time"
 
 	"github.com/beevik/etree"  // BSD-2-clause
 	"github.com/xmppo/go-xmpp" // BSD-3-Clause
@@ -24,7 +26,11 @@ func sendIQ(client *xmpp.Client, iqc chan xmpp.IQ, target string, iQtype string,
 	if err != nil {
 		return iq, fmt.Errorf("sendIQ: failed to send iq: %w", err)
 	}
-	iq = <-c
+	select {
+	case iq = <-c:
+	case <-time.After(60 * time.Second):
+		return iq, errors.New("sendIQ: server didn't reply to IQ: " + content)
+	}
 	return iq, nil
 }