2 * Copyright © 2018 Damyan Ivanov.
3 * This file is part of Mobile-Ledger.
4 * Mobile-Ledger is free software: you can distribute it and/or modify it
5 * under the term of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your opinion), any later version.
9 * Mobile-Ledger is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License terms for details.
14 * You should have received a copy of the GNU General Public License
15 * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
18 package net.ktnx.mobileledger.utils;
20 import android.content.SharedPreferences;
21 import android.util.Base64;
22 import android.util.Log;
24 import java.io.IOException;
25 import java.net.HttpURLConnection;
28 public final class NetworkUtil {
29 private static final int thirtySeconds = 30000;
30 public static HttpURLConnection prepare_connection(SharedPreferences pref, String path) throws
32 final String backend_url = pref.getString("backend_url", "");
33 final boolean use_auth = pref.getBoolean("backend_use_http_auth", false);
34 Log.d("network", "Connecting to "+backend_url + "/" + path);
35 HttpURLConnection http = (HttpURLConnection) new URL(backend_url + "/" + path).openConnection();
37 final String auth_user = pref.getString("backend_auth_user", "");
38 final String auth_password = pref.getString("backend_auth_password", "");
39 final byte[] bytes = (String.format("%s:%s", auth_user, auth_password)).getBytes("UTF-8");
40 final String value = Base64.encodeToString(bytes, Base64.DEFAULT);
41 http.setRequestProperty("Authorization", "Basic " + value);
43 http.setAllowUserInteraction(false);
44 http.setRequestProperty("Accept-Charset", "UTF-8");
45 http.setInstanceFollowRedirects(false);
46 http.setUseCaches(false);
47 http.setReadTimeout(thirtySeconds);
48 http.setConnectTimeout(thirtySeconds);