Add --no-ssl flag to disable ssl connection

main.go

@@ -163,8 +163,8 @@ func getCommand(args []string) {
 	getCmd := flag.NewFlagSet("get", flag.ExitOnError)
 	path := getCmd.String("o", ".", "output folder of dowloaded file")
 	inputFile := getCmd.String("i", "", "input file containing a list of urls")
-
 	skipCertificateCheck := getCmd.Bool("allow-unknown-authority", false, "skip x509 certificate check during tls connection")
+	noSSL := getCmd.Bool("no-ssl", false, "disable SSL.")
 
 	urlList := parseFlags(getCmd, args)
 
@@ -187,7 +187,7 @@ func getCommand(args []string) {
 			}
 
 			wg.Add(1)
-			transfer := NewXdccTransfer(*url, *path, *skipCertificateCheck)
+			transfer := NewXdccTransfer(*url, *path, !*noSSL, *skipCertificateCheck)
 			go func(transfer *XdccTransfer) {
 				doTransfer(transfer)
 				wg.Done()

xdcc.go

@@ -136,12 +136,12 @@ type XdccTransfer struct {
 	events       chan TransferEvent
 }
 
-func NewXdccTransfer(url IRCFileURL, filePath string, skipCertificateCheck bool) *XdccTransfer {
+func NewXdccTransfer(url IRCFileURL, filePath string, enableSSL bool, skipCertificateCheck bool) *XdccTransfer {
 	rand.Seed(time.Now().UTC().UnixNano())
 	nick := IRCClientUserName + strconv.Itoa(int(rand.Uint32()))
 
 	config := irc.NewConfig(nick)
-	config.SSL = true
+	config.SSL = enableSSL
 	config.SSLConfig = &tls.Config{ServerName: url.Network, InsecureSkipVerify: skipCertificateCheck}
 	config.Server = url.Network
 	config.NewNick = func(nick string) string {