LT: get languages via API

app/src/main/assets/lt.json

@@ -1,317 +0,0 @@
-[
-  {
-    "name": "Arabic",
-    "code": "ar",
-    "longCode": "ar"
-  },
-  {
-    "name": "Asturian",
-    "code": "ast",
-    "longCode": "ast-ES"
-  },
-  {
-    "name": "Belarusian",
-    "code": "be",
-    "longCode": "be-BY"
-  },
-  {
-    "name": "Breton",
-    "code": "br",
-    "longCode": "br-FR"
-  },
-  {
-    "name": "Catalan",
-    "code": "ca",
-    "longCode": "ca-ES"
-  },
-  {
-    "name": "Catalan (Valencian)",
-    "code": "ca",
-    "longCode": "ca-ES-valencia"
-  },
-  {
-    "name": "Chinese",
-    "code": "zh",
-    "longCode": "zh-CN"
-  },
-  {
-    "name": "Danish",
-    "code": "da",
-    "longCode": "da-DK"
-  },
-  {
-    "name": "Dutch",
-    "code": "nl",
-    "longCode": "nl"
-  },
-  {
-    "name": "Dutch",
-    "code": "nl",
-    "longCode": "nl"
-  },
-  {
-    "name": "Dutch (Belgium)",
-    "code": "nl",
-    "longCode": "nl-BE"
-  },
-  {
-    "name": "English",
-    "code": "en",
-    "longCode": "en"
-  },
-  {
-    "name": "English",
-    "code": "en",
-    "longCode": "en"
-  },
-  {
-    "name": "English (Australian)",
-    "code": "en",
-    "longCode": "en-AU"
-  },
-  {
-    "name": "English (Australian)",
-    "code": "en",
-    "longCode": "en-AU"
-  },
-  {
-    "name": "English (Canadian)",
-    "code": "en",
-    "longCode": "en-CA"
-  },
-  {
-    "name": "English (Canadian)",
-    "code": "en",
-    "longCode": "en-CA"
-  },
-  {
-    "name": "English (GB)",
-    "code": "en",
-    "longCode": "en-GB"
-  },
-  {
-    "name": "English (GB)",
-    "code": "en",
-    "longCode": "en-GB"
-  },
-  {
-    "name": "English (New Zealand)",
-    "code": "en",
-    "longCode": "en-NZ"
-  },
-  {
-    "name": "English (New Zealand)",
-    "code": "en",
-    "longCode": "en-NZ"
-  },
-  {
-    "name": "English (South African)",
-    "code": "en",
-    "longCode": "en-ZA"
-  },
-  {
-    "name": "English (South African)",
-    "code": "en",
-    "longCode": "en-ZA"
-  },
-  {
-    "name": "English (US)",
-    "code": "en",
-    "longCode": "en-US"
-  },
-  {
-    "name": "English (US)",
-    "code": "en",
-    "longCode": "en-US"
-  },
-  {
-    "name": "Esperanto",
-    "code": "eo",
-    "longCode": "eo"
-  },
-  {
-    "name": "French",
-    "code": "fr",
-    "longCode": "fr"
-  },
-  {
-    "name": "French",
-    "code": "fr",
-    "longCode": "fr"
-  },
-  {
-    "name": "Galician",
-    "code": "gl",
-    "longCode": "gl-ES"
-  },
-  {
-    "name": "German",
-    "code": "de",
-    "longCode": "de"
-  },
-  {
-    "name": "German",
-    "code": "de",
-    "longCode": "de"
-  },
-  {
-    "name": "German (Austria)",
-    "code": "de",
-    "longCode": "de-AT"
-  },
-  {
-    "name": "German (Austria)",
-    "code": "de",
-    "longCode": "de-AT"
-  },
-  {
-    "name": "German (Germany)",
-    "code": "de",
-    "longCode": "de-DE"
-  },
-  {
-    "name": "German (Germany)",
-    "code": "de",
-    "longCode": "de-DE"
-  },
-  {
-    "name": "German (Swiss)",
-    "code": "de",
-    "longCode": "de-CH"
-  },
-  {
-    "name": "German (Swiss)",
-    "code": "de",
-    "longCode": "de-CH"
-  },
-  {
-    "name": "Greek",
-    "code": "el",
-    "longCode": "el-GR"
-  },
-  {
-    "name": "Irish",
-    "code": "ga",
-    "longCode": "ga-IE"
-  },
-  {
-    "name": "Italian",
-    "code": "it",
-    "longCode": "it"
-  },
-  {
-    "name": "Japanese",
-    "code": "ja",
-    "longCode": "ja-JP"
-  },
-  {
-    "name": "Khmer",
-    "code": "km",
-    "longCode": "km-KH"
-  },
-  {
-    "name": "Norwegian (Bokmål)",
-    "code": "nb",
-    "longCode": "nb"
-  },
-  {
-    "name": "Norwegian (Bokmål)",
-    "code": "no",
-    "longCode": "no"
-  },
-  {
-    "name": "Persian",
-    "code": "fa",
-    "longCode": "fa"
-  },
-  {
-    "name": "Polish",
-    "code": "pl",
-    "longCode": "pl-PL"
-  },
-  {
-    "name": "Portuguese",
-    "code": "pt",
-    "longCode": "pt"
-  },
-  {
-    "name": "Portuguese (Angola preAO)",
-    "code": "pt",
-    "longCode": "pt-AO"
-  },
-  {
-    "name": "Portuguese (Brazil)",
-    "code": "pt",
-    "longCode": "pt-BR"
-  },
-  {
-    "name": "Portuguese (Moçambique preAO)",
-    "code": "pt",
-    "longCode": "pt-MZ"
-  },
-  {
-    "name": "Portuguese (Portugal)",
-    "code": "pt",
-    "longCode": "pt-PT"
-  },
-  {
-    "name": "Romanian",
-    "code": "ro",
-    "longCode": "ro-RO"
-  },
-  {
-    "name": "Russian",
-    "code": "ru",
-    "longCode": "ru-RU"
-  },
-  {
-    "name": "Simple German",
-    "code": "de-DE-x-simple-language",
-    "longCode": "de-DE-x-simple-language"
-  },
-  {
-    "name": "Slovak",
-    "code": "sk",
-    "longCode": "sk-SK"
-  },
-  {
-    "name": "Slovenian",
-    "code": "sl",
-    "longCode": "sl-SI"
-  },
-  {
-    "name": "Spanish",
-    "code": "es",
-    "longCode": "es"
-  },
-  {
-    "name": "Spanish",
-    "code": "es",
-    "longCode": "es"
-  },
-  {
-    "name": "Spanish (voseo)",
-    "code": "es",
-    "longCode": "es-AR"
-  },
-  {
-    "name": "Swedish",
-    "code": "sv",
-    "longCode": "sv"
-  },
-  {
-    "name": "Tagalog",
-    "code": "tl",
-    "longCode": "tl-PH"
-  },
-  {
-    "name": "Tamil",
-    "code": "ta",
-    "longCode": "ta-IN"
-  },
-  {
-    "name": "Ukrainian",
-    "code": "uk",
-    "longCode": "uk-UA"
-  }
-]

app/src/main/java/eu/faircode/email/LanguageTool.java

@@ -53,6 +53,8 @@ public class LanguageTool {
     static final String LT_URI_PLUS = "https://api.languagetoolplus.com/v2/";
     private static final int LT_TIMEOUT = 20; // seconds
 
+    private static JSONArray jlanguages = null;
+
     static boolean isEnabled(Context context) {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
         return prefs.getBoolean("lt_enabled", false);
@@ -65,6 +67,37 @@ public class LanguageTool {
         return (lt_enabled && lt_auto);
     }
 
+    static JSONArray getLanguages(Context context) throws IOException, JSONException {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        String lt_uri = prefs.getString("lt_uri", LT_URI_PLUS);
+
+        // https://languagetool.org/http-api/swagger-ui/#!/default/get_words
+        Uri uri = Uri.parse(lt_uri).buildUpon().appendPath("languages").build();
+        Log.i("LT uri=" + uri);
+
+        URL url = new URL(uri.toString());
+        HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
+        connection.setRequestMethod("GET");
+        connection.setDoOutput(false);
+        connection.setReadTimeout(LT_TIMEOUT * 1000);
+        connection.setConnectTimeout(LT_TIMEOUT * 1000);
+        ConnectionHelper.setUserAgent(context, connection);
+        connection.setRequestProperty("Accept", "application/json");
+        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
+        connection.connect();
+
+        try {
+            checkStatus(connection);
+
+            String response = Helper.readStream(connection.getInputStream());
+            Log.i("LT response=" + response);
+
+            return new JSONArray(response);
+        } finally {
+            connection.disconnect();
+        }
+    }
+
     static List<Suggestion> getSuggestions(Context context, CharSequence text) throws IOException, JSONException {
         if (TextUtils.isEmpty(text))
             return new ArrayList<>();
@@ -82,11 +115,8 @@ public class LanguageTool {
                 .appendQueryParameter("language", "auto");
 
         // curl -X GET --header 'Accept: application/json' 'https://api.languagetool.org/v2/languages'
-        JSONArray jlanguages;
-        try (InputStream is = context.getAssets().open("lt.json")) {
-            String json = Helper.readStream(is);
-            jlanguages = new JSONArray(json);
-        }
+        if (jlanguages == null)
+            jlanguages = getLanguages(context);
 
         List<Locale> locales = new ArrayList<>();
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N)