]> git.ktnx.net Git - mobile-ledger.git/blob - app/src/main/java/net/ktnx/mobileledger/utils/NetworkUtil.java
preliminary implementation for retrieval of transactions/accounts using the JSON API
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / utils / NetworkUtil.java
1 /*
2  * Copyright © 2019 Damyan Ivanov.
3  * This file is part of MoLe.
4  * MoLe 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.
8  *
9  * MoLe 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.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
16  */
17
18 package net.ktnx.mobileledger.utils;
19
20 import android.util.Base64;
21 import android.util.Log;
22
23 import net.ktnx.mobileledger.model.MobileLedgerProfile;
24
25 import java.io.IOException;
26 import java.net.HttpURLConnection;
27 import java.net.URL;
28 import java.nio.charset.StandardCharsets;
29
30 public final class NetworkUtil {
31     private static final int thirtySeconds = 30000;
32     public static HttpURLConnection prepareConnection(MobileLedgerProfile profile, String path) throws IOException {
33         final String backend_url = profile.getUrl();
34         final boolean use_auth = profile.isAuthEnabled();
35         Log.d("network", "Connecting to " + backend_url + "/" + path);
36         HttpURLConnection http =
37                 (HttpURLConnection) new URL(backend_url + "/" + path).openConnection();
38         if (use_auth) {
39             final String auth_user = profile.getAuthUserName();
40             final String auth_password = profile.getAuthPassword();
41             final byte[] bytes = (String.format("%s:%s", auth_user, auth_password))
42                     .getBytes(StandardCharsets.UTF_8);
43             final String value = Base64.encodeToString(bytes, Base64.DEFAULT);
44             http.setRequestProperty("Authorization", "Basic " + value);
45         }
46         http.setAllowUserInteraction(false);
47         http.setRequestProperty("Accept-Charset", "UTF-8");
48         http.setInstanceFollowRedirects(false);
49         http.setUseCaches(false);
50         http.setReadTimeout(thirtySeconds);
51         http.setConnectTimeout(thirtySeconds);
52
53         return http;
54     }
55 }