197 lines
7.0 KiB
Java
197 lines
7.0 KiB
Java
package app.fedilab.nitterizeme;
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/* Copyright 2020 Thomas Schneider
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*
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* This file is a part of UntrackMe
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* UntrackMe is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with UntrackMe; if not,
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* see <http://www.gnu.org/licenses>. */
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import android.app.DownloadManager;
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import android.content.Context;
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import android.net.Uri;
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import android.os.Environment;
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import java.io.IOException;
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import java.net.InetAddress;
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import java.net.URL;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import javax.net.ssl.HttpsURLConnection;
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import static android.content.Context.DOWNLOAD_SERVICE;
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import static app.fedilab.nitterizeme.MainActivity.shortener_domains;
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class Utils {
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static final String RECEIVE_STREAMING_URL = "receive_streaming_url";
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private static final String[] UTM_PARAMS = {
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"utm_\\w+",
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"ga_source",
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"ga_medium",
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"ga_term",
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"ga_content",
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"ga_campaign",
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"ga_place",
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"yclid",
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"_openstat",
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"fb_action_ids",
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"fb_action_types",
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"fb_source",
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"fb_ref",
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"fbclid",
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"action_object_map",
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"action_type_map",
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"action_ref_map",
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"gs_l",
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"mkt_tok",
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"hmb_campaign",
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"hmb_medium",
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"hmb_source",
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"[\\?|&]ref[\\_]?",
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"amp[_#\\w]+",
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"[\\w]+"
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};
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private static String urlRegex = "(?i)\\b((?:[a-z][\\w-]+:(?:/{1,3}|[a-z0-9%])|www\\d{0,3}[.]|[a-z0-9.\\-]+[.][a-z]{2,10}/)(?:[^\\s()<>]+|\\(([^\\s()<>]+|(\\([^\\s()<>]+\\)))*\\))+(?:\\(([^\\s()<>]+|(\\([^\\s()<>]+\\)))*\\)|[^\\s`!()\\[\\]{};:'\".,<>?«»“”‘’]))";
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static final Pattern urlPattern = Pattern.compile(
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urlRegex,
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Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
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/**
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* Returns the unshortened URL
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*
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* @param urls ArrayList<String> URL to check
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*/
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static void checkUrl(ArrayList<String> urls) {
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URL url;
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String newURL = null;
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String comingURl;
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try {
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comingURl = urls.get(urls.size() - 1);
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if (comingURl.startsWith("http://")) {
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comingURl = comingURl.replace("http://", "https://");
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}
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url = new URL(comingURl);
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HttpsURLConnection httpsURLConnection = (HttpsURLConnection) url.openConnection();
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httpsURLConnection.setRequestProperty("http.keepAlive", "false");
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httpsURLConnection.setInstanceFollowRedirects(false);
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httpsURLConnection.setRequestMethod("HEAD");
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if (httpsURLConnection.getResponseCode() == 301) {
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Map<String, List<String>> map = httpsURLConnection.getHeaderFields();
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for (Map.Entry<String, List<String>> entry : map.entrySet()) {
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if (entry.toString().toLowerCase().startsWith("location")) {
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Matcher matcher = urlPattern.matcher(entry.toString());
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if (matcher.find()) {
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newURL = remove_tracking_param(matcher.group(1));
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urls.add(newURL);
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}
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}
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}
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}
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httpsURLConnection.getInputStream().close();
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if (newURL != null && newURL.compareTo(comingURl) != 0) {
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URL redirectURL = new URL(newURL);
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String host = redirectURL.getHost();
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String protocol = redirectURL.getProtocol();
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if (protocol != null && host != null) {
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if (Arrays.asList(shortener_domains).contains(host)) {
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checkUrl(urls);
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}
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* Get time for reaching a domain
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*
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* @param domain String domain name
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* @return long delay
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*/
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static long ping(String domain) {
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long timeDifference = -2;
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try {
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long beforeTime = System.currentTimeMillis();
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//noinspection ResultOfMethodCallIgnored
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InetAddress.getByName(domain).isReachable(10000);
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long afterTime = System.currentTimeMillis();
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timeDifference = afterTime - beforeTime;
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} catch (IOException ignored) {
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}
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return timeDifference;
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}
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/**
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* Clean URLs from utm parameters
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*
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* @param url String URL
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* @return cleaned URL String
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*/
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private static String remove_tracking_param(String url) {
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if (url != null) {
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for (String utm : UTM_PARAMS) {
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url = url.replaceAll("&" + utm + "=[0-9a-zA-Z._-]*", "");
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url = url.replaceAll("&" + utm + "=[0-9a-zA-Z._-]*", "");
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url = url.replaceAll("\\?" + utm + "=[0-9a-zA-Z._-]*", "?");
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url = url.replaceAll("/" + utm + "=" + urlRegex, "/");
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url = url.replaceAll("#" + utm + "=" + urlRegex, "");
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}
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}
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if (url != null && url.endsWith("?")) {
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url = url.substring(0, url.length() - 1);
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}
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return url;
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}
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/**
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* Manage downloads with URLs
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*
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* @param context Context
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* @param url String download url
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*/
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static void manageDownloadsNoPopup(final Context context, final String url) {
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final DownloadManager.Request request;
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try {
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request = new DownloadManager.Request(Uri.parse(url.trim()));
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} catch (Exception e) {
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return;
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}
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try {
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SimpleDateFormat formatter = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss", Locale.ENGLISH);
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Date now = new Date();
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final String fileName = "UntrackMe_" + formatter.format(now) + ".mp4";
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request.allowScanningByMediaScanner();
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request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName);
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request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
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DownloadManager dm = (DownloadManager) context.getSystemService(DOWNLOAD_SERVICE);
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assert dm != null;
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dm.enqueue(request);
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} catch (IllegalStateException e) {
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e.printStackTrace();
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}
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}
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}
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