Add flags to proxy and add license headers.

proxy/main.go

@@ -1,40 +1,62 @@
+// Copyright 2021, Henrik Sölver henrik.solver@gmail.com
+// SPDX-License-Identifier: BSD-3-Clause
 package main
 
 import (
 	"context"
 	"flag"
+	"fmt"
 	"ippserver/packages/ipp"
 	"ippserver/packages/mdnsserver"
 	"net/http"
+	"net/url"
 	"sync"
 
 	log "github.com/sirupsen/logrus"
 )
 
 var (
-	loglevel string
-	location string
+	loglevel        string
+	location        string
+	port            uint
+	printerURI      string
+	printerName     string
+	ippurl, httpurl *url.URL
 )
 
 func init() {
 	flag.StringVar(&loglevel, "loglevel", "info", "The wanted loglevel error/info/debug")
+	flag.StringVar(&location, "location", "somewhere", "locaton of the printer as shown in mDNS")
+	flag.UintVar(&port, "port", 1234, "tcp port")
+	flag.StringVar(&printerURI, "printer", "", "URL to the real printer, typical ipp://printername.local:631/ipp/print")
+	flag.StringVar(&printerName, "name", "ChroBroPrint", "Name of the printer advertised with mDNS")
 }
 
 func main() {
+	var err error
+	flag.Parse()
 	customFormatter := new(log.TextFormatter)
 	customFormatter.TimestampFormat = "2006-01-02 15:04:05"
 	log.SetFormatter(customFormatter)
 	customFormatter.FullTimestamp = true
 	log.SetLevel(log.InfoLevel)
 
+	ippurl, err = url.Parse(printerURI)
+	if err != nil {
+		fmt.Printf("Failed to parse printer URL %v", err.Error())
+		return
+	}
+	httpurl, _ = url.Parse(printerURI)
+	httpurl.Scheme = "http"
+
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
-	go mdnsserver.Run(ctx)
+	go mdnsserver.Run(ctx, location, uint16(port), printerName)
 
 	http.HandleFunc("/ipp/print", handle)
 
-	log.Info("http server started on :1234")
-	err := http.ListenAndServe(":1234", nil)
+	log.Infof("http server starting on :%v", port)
+	err = http.ListenAndServe(fmt.Sprintf(":%v", port), nil)
 	if err != nil {
 		log.Fatal("ListenAndServe: " + err.Error())
 	}