Add proper user agent to instance check (#48)

Author: naltatis

package.json

@@ -1,6 +1,6 @@
 {
   "name": "evcc",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "main": "node_modules/expo/AppEntry.js",
   "scripts": {
     "start": "expo start",

screens/MainScreen.tsx

@@ -10,6 +10,7 @@ import { Linking, ActivityIndicator, StyleSheet, Animated } from "react-native";
 import { Text, Layout, Spinner, Button } from "@ui-kitten/components";
 import { useAppContext } from "../components/AppContext";
 import { useTranslation } from "react-i18next";
+import { USER_AGENT } from "../utils/constants";
 
 function LoadingScreen() {
   return <ActivityIndicator size="large" />;
@@ -142,7 +143,7 @@ export default function MainScreen({ navigation }) {
             ref={webViewRef}
             overScrollMode="never"
             setBuiltInZoomControls={false}
-            applicationNameForUserAgent={"evcc/0.0.1"}
+            applicationNameForUserAgent={USER_AGENT}
             onError={onError}
             onHttpError={onHttpError}
             onLoad={onLoad}

utils/constants.js

@@ -0,0 +1,3 @@
+import { version } from "../package.json";
+
+export const USER_AGENT = `evcc/${version}`;

utils/server.js

@@ -1,5 +1,6 @@
 import axios, { AxiosError } from "axios";
 import { t } from "i18next";
+import { USER_AGENT } from "./constants";
 
 export function cleanServerUrl(url) {
   let result = url.trim();
@@ -14,7 +15,10 @@ export function cleanServerUrl(url) {
 
 export async function verifyEvccServer(url, authOptions) {
   try {
-    options = { timeout: 10000 };
+    const options = {
+      timeout: 10000,
+      headers: { "User-Agent": USER_AGENT },
+    };
     if (authOptions) {
       const { username, password } = authOptions;
       options.auth = { username, password };