mirror of https://github.com/M66B/FairEmail.git
M66B
5 years ago
parent
e34421f1ff
commit
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package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2020 by Marcel Bokhorst (M66B)
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*/
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import android.content.Context;
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import android.net.Uri;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.io.File;
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import java.io.IOException;
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import java.net.URL;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import javax.net.ssl.HttpsURLConnection;
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public class DisconnectBlacklist {
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private final static int FETCH_TIMEOUT = 20 * 1000; // milliseconds
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private final static String LIST = "https://raw.githubusercontent.com/mozilla-services/shavar-prod-lists/master/disconnect-blacklist.json";
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static void download(Context context) throws IOException, JSONException {
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File file = getFile(context);
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URL url = new URL(LIST);
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Log.i("GET " + url);
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HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
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connection.setRequestMethod("GET");
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connection.setReadTimeout(FETCH_TIMEOUT);
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connection.setConnectTimeout(FETCH_TIMEOUT);
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connection.connect();
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try {
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String response = Helper.readStream(connection.getInputStream(), StandardCharsets.UTF_8.name());
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Helper.writeText(file, response);
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} finally {
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connection.disconnect();
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}
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}
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static List<String> getCategories(String domain, Context context) throws IOException, JSONException {
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if (domain == null)
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return null;
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File file = getFile(context);
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if (!file.exists())
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return null;
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List<String> result = new ArrayList<>();
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String json = Helper.readText(file);
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JSONObject jdisconnect = new JSONObject(json);
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JSONObject jcategories = (JSONObject) jdisconnect.get("categories");
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Iterator<String> categories = jcategories.keys();
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while (categories.hasNext()) {
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String category = categories.next();
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JSONArray jcategory = jcategories.getJSONArray(category);
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for (int c = 0; c < jcategory.length(); c++) {
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JSONObject jblock = (JSONObject) jcategory.get(c);
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Iterator<String> names = jblock.keys();
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if (names.hasNext()) {
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String name = names.next();
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JSONObject jsites = (JSONObject) jblock.get(name);
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Iterator<String> sites = jsites.keys();
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if (sites.hasNext()) {
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List<String> domains = new ArrayList<>();
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String site = sites.next();
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String host = Uri.parse(site).getHost();
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if (host != null)
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domains.add(host);
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JSONArray jdomains = jsites.getJSONArray(site);
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for (int d = 0; d < jdomains.length(); d++)
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domains.add(jdomains.getString(d));
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for (String d : domains)
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if (domain.equalsIgnoreCase(d) && !result.contains(category))
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result.add(category);
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}
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}
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}
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}
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return (result.size() == 0 ? null : result);
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}
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private static File getFile(Context context) {
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return new File(context.getFilesDir(), "disconnect-blacklist.json");
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}
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static Long getTime(Context context) {
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File file = getFile(context);
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return (file.exists() ? file.lastModified() : null);
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}
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}
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