Introduce explicit config

config/urls.go

@@ -0,0 +1,59 @@
+package config
+
+import (
+	"encoding/hex"
+	"net"
+	"net/url"
+	"strconv"
+)
+
+func getURLs(addr net.IP, port uint16, secret []byte) (urls URLs) {
+	values := url.Values{}
+	values.Set("server", addr.String())
+	values.Set("port", strconv.Itoa(int(port)))
+	values.Set("secret", hex.EncodeToString(secret))
+
+	urls.TG = makeTGURL(values)
+	urls.TMe = makeTGURL(values)
+	urls.TGQRCode = makeQRCodeURL(urls.TG)
+	urls.TMeQRCode = makeQRCodeURL(urls.TG)
+
+	return
+}
+
+func makeTGURL(values url.Values) string {
+	tgURL := url.URL{
+		Scheme:   "tg",
+		Host:     "proxy",
+		RawQuery: values.Encode(),
+	}
+
+	return tgURL.String()
+}
+
+func makeTMeURL(values url.Values) string {
+	tMeURL := url.URL{
+		Scheme:   "https",
+		Host:     "t.me",
+		Path:     "proxy",
+		RawQuery: values.Encode(),
+	}
+
+	return tMeURL.String()
+}
+
+func makeQRCodeURL(data string) string {
+	QRURL := url.URL{
+		Scheme: "https",
+		Host:   "api.qrserver.com",
+		Path:   "v1/create-qr-code",
+	}
+
+	values := url.Values{}
+	values.Set("qzone", "4")
+	values.Set("format", "svg")
+	values.Set("data", data)
+	QRURL.RawQuery = values.Encode()
+
+	return QRURL.String()
+}