Move iq handling functions in separate file.

iqhandling.go

@@ -0,0 +1,48 @@
+// Copyright 2020 - 2021 Martin Dosch.
+// Use of this source code is governed by the BSD-2-clause
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"errors"
+	"log"
+
+	"github.com/mattn/go-xmpp" // BSD-3-Clause
+)
+
+func sendIQ(client *xmpp.Client, target string, iQtype string,
+	content string) (xmpp.IQ, error) {
+	var iq xmpp.IQ
+	id := getID()
+	c := make(chan xmpp.IQ)
+	go getIQ(client, id, c)
+	_, err := client.RawInformation(client.JID(), target, id,
+		iQtype, content)
+	if err != nil {
+		return iq, err
+	}
+	iq = <-c
+	close(c)
+	if iq.Type != "result" {
+		return iq, errors.New("No result for " + content)
+	}
+	return iq, nil
+}
+
+func getIQ(client *xmpp.Client, id string, c chan xmpp.IQ) {
+	for {
+		msg, err := client.Recv()
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		switch v := msg.(type) {
+		case xmpp.IQ:
+			if v.ID == id {
+				c <- v
+				return
+			}
+		}
+	}
+}