mirror of https://github.com/M66B/FairEmail.git
1056 lines
41 KiB
Java
1056 lines
41 KiB
Java
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.Manifest;
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import android.app.Activity;
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import android.app.KeyguardManager;
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import android.content.ActivityNotFoundException;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.content.res.Configuration;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.graphics.Color;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Environment;
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import android.os.Handler;
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import android.os.LocaleList;
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import android.os.Parcel;
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import android.os.PowerManager;
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import android.os.StatFs;
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import android.security.KeyChain;
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import android.security.KeyChainAliasCallback;
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import android.security.KeyChainException;
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import android.text.Spannable;
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import android.text.Spanned;
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import android.text.TextUtils;
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import android.text.format.DateUtils;
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import android.text.format.Time;
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import android.util.TypedValue;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.WindowManager;
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import android.view.inputmethod.EditorInfo;
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import android.webkit.MimeTypeMap;
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import android.webkit.WebView;
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import android.widget.Button;
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import android.widget.CheckBox;
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import android.widget.EditText;
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import android.widget.ImageView;
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import android.widget.RadioButton;
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import android.widget.Spinner;
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import android.widget.TextView;
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import android.widget.Toast;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.appcompat.app.AlertDialog;
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import androidx.biometric.BiometricManager;
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import androidx.biometric.BiometricPrompt;
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import androidx.browser.customtabs.CustomTabsIntent;
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import androidx.constraintlayout.widget.ConstraintLayout;
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import androidx.core.content.ContextCompat;
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import androidx.core.content.FileProvider;
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import androidx.core.graphics.ColorUtils;
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import androidx.fragment.app.FragmentActivity;
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import androidx.lifecycle.Lifecycle;
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import androidx.lifecycle.LifecycleObserver;
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import androidx.lifecycle.LifecycleOwner;
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import androidx.lifecycle.OnLifecycleEvent;
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import androidx.preference.PreferenceManager;
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import androidx.recyclerview.widget.RecyclerView;
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import com.google.android.material.bottomnavigation.BottomNavigationView;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.nio.charset.StandardCharsets;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.text.DateFormat;
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import java.text.DecimalFormat;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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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.Objects;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.SynchronousQueue;
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import java.util.concurrent.ThreadFactory;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicInteger;
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import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
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import static androidx.browser.customtabs.CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION;
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public class Helper {
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static final int NOTIFICATION_SYNCHRONIZE = 1;
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static final int NOTIFICATION_SEND = 2;
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static final int NOTIFICATION_EXTERNAL = 3;
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static final int NOTIFICATION_UPDATE = 4;
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static final float LOW_LIGHT = 0.6f;
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static final int BUFFER_SIZE = 8192; // Same as in Files class
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static final String PGP_BEGIN_MESSAGE = "-----BEGIN PGP MESSAGE-----";
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static final String PGP_END_MESSAGE = "-----END PGP MESSAGE-----";
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static final String FAQ_URI = "https://github.com/M66B/FairEmail/blob/master/FAQ.md";
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static final String XDA_URI = "https://forum.xda-developers.com/showthread.php?t=3824168";
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static final String SUPPORT_URI = "https://contact.faircode.eu/?product=fairemailsupport";
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static final String TEST_URI = "https://play.google.com/apps/testing/" + BuildConfig.APPLICATION_ID;
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static final String CROWDIN_URI = "https://crowdin.com/project/open-source-email";
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static ExecutorService getBackgroundExecutor(int threads, String name) {
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ThreadFactory factory = new ThreadFactory() {
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private final AtomicInteger threadId = new AtomicInteger();
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@Override
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public Thread newThread(@NonNull Runnable runnable) {
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Thread thread = new Thread(runnable);
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thread.setName("FairEmail_bg_" + name + "_" + threadId.getAndIncrement());
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thread.setPriority(THREAD_PRIORITY_BACKGROUND);
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return thread;
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}
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};
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if (threads == 0)
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return new ThreadPoolExecutorEx(
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0, Integer.MAX_VALUE,
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60L, TimeUnit.SECONDS,
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new SynchronousQueue<Runnable>(),
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factory);
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else
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return new ThreadPoolExecutorEx(
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threads, threads,
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0L, TimeUnit.MILLISECONDS,
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new LinkedBlockingQueue<Runnable>(),
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factory);
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}
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private static class ThreadPoolExecutorEx extends ThreadPoolExecutor {
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public ThreadPoolExecutorEx(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory) {
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super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory);
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}
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@Override
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protected void beforeExecute(Thread t, Runnable r) {
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Log.d("Executing " + t.getName());
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}
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}
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private static final ExecutorService executor = getBackgroundExecutor(1, "helper");
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// Features
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static boolean hasPermission(Context context, String name) {
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return (ContextCompat.checkSelfPermission(context, name) == PackageManager.PERMISSION_GRANTED);
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}
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static boolean hasPermissions(Context context, String[] permissions) {
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for (String permission : permissions)
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if (!hasPermission(context, permission))
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return false;
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return true;
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}
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static String[] getOAuthPermissions() {
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List<String> permissions = new ArrayList<>();
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permissions.add(Manifest.permission.READ_CONTACTS); // profile
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O)
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permissions.add(Manifest.permission.GET_ACCOUNTS);
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return permissions.toArray(new String[0]);
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}
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static boolean hasCustomTabs(Context context, Uri uri) {
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PackageManager pm = context.getPackageManager();
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Intent view = new Intent(Intent.ACTION_VIEW, uri);
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for (ResolveInfo info : pm.queryIntentActivities(view, 0)) {
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Intent intent = new Intent();
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intent.setAction(ACTION_CUSTOM_TABS_CONNECTION);
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intent.setPackage(info.activityInfo.packageName);
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if (pm.resolveService(intent, 0) != null)
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return true;
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}
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return false;
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}
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static boolean hasWebView(Context context) {
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PackageManager pm = context.getPackageManager();
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if (pm.hasSystemFeature(PackageManager.FEATURE_WEBVIEW))
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try {
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new WebView(context);
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return true;
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} catch (Throwable ex) {
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return false;
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}
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else
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return false;
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}
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static boolean canPrint(Context context) {
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PackageManager pm = context.getPackageManager();
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return pm.hasSystemFeature(PackageManager.FEATURE_PRINTING);
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}
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static Boolean isIgnoringOptimizations(Context context) {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
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if (pm == null)
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return null;
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return pm.isIgnoringBatteryOptimizations(BuildConfig.APPLICATION_ID);
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}
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return null;
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}
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static boolean isPlayStoreInstall() {
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return BuildConfig.PLAY_STORE_RELEASE;
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}
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// View
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static Intent getChooser(Context context, Intent intent) {
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PackageManager pm = context.getPackageManager();
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if (pm.queryIntentActivities(intent, 0).size() == 1)
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return intent;
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else
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return Intent.createChooser(intent, context.getString(R.string.title_select_app));
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}
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static void share(Context context, File file, String type, String name) {
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// https://developer.android.com/reference/android/support/v4/content/FileProvider
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Uri uri = FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID, file);
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Log.i("uri=" + uri);
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// Build intent
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Intent intent = new Intent(Intent.ACTION_VIEW);
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intent.setDataAndTypeAndNormalize(uri, type);
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intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
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if (!TextUtils.isEmpty(name))
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intent.putExtra(Intent.EXTRA_TITLE, Helper.sanitizeFilename(name));
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Log.i("Intent=" + intent + " type=" + type);
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// Get targets
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PackageManager pm = context.getPackageManager();
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List<ResolveInfo> ris = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
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for (ResolveInfo ri : ris) {
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Log.i("Target=" + ri);
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context.grantUriPermission(ri.activityInfo.packageName, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
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}
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// Check if viewer available
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if (ris.size() == 0) {
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String message = context.getString(R.string.title_no_viewer,
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type != null ? type : name != null ? name : file.getName());
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ToastEx.makeText(context, message, Toast.LENGTH_LONG).show();
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} else
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context.startActivity(intent);
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}
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static void view(Context context, Intent intent) {
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Uri uri = intent.getData();
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if ("http".equals(uri.getScheme()) || "https".equals(uri.getScheme()))
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view(context, intent.getData(), false);
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else
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context.startActivity(intent);
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}
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static void view(Context context, Uri uri, boolean browse) {
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Log.i("View=" + uri);
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if (browse || !hasCustomTabs(context, uri)) {
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Intent view = new Intent(Intent.ACTION_VIEW, uri);
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context.startActivity(getChooser(context, view));
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} else {
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// https://developer.chrome.com/multidevice/android/customtabs
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CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
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builder.setToolbarColor(resolveColor(context, R.attr.colorPrimary));
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builder.setSecondaryToolbarColor(resolveColor(context, R.attr.colorPrimaryDark));
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builder.setColorScheme(Helper.isDarkTheme(context)
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? CustomTabsIntent.COLOR_SCHEME_DARK : CustomTabsIntent.COLOR_SCHEME_LIGHT);
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builder.addDefaultShareMenuItem();
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CustomTabsIntent customTabsIntent = builder.build();
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try {
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customTabsIntent.launchUrl(context, uri);
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} catch (ActivityNotFoundException ex) {
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Log.w(ex);
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ToastEx.makeText(context, context.getString(R.string.title_no_viewer, uri.toString()), Toast.LENGTH_LONG).show();
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} catch (Throwable ex) {
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Log.e(ex);
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ToastEx.makeText(context, Log.formatThrowable(ex, false), Toast.LENGTH_LONG).show();
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}
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}
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}
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static void viewFAQ(Context context, int question) {
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if (question == 0)
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view(context, Uri.parse(FAQ_URI), false);
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else
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view(context, Uri.parse(FAQ_URI + "#user-content-faq" + question), false);
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}
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static Intent getIntentOpenKeychain() {
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Intent intent = new Intent(Intent.ACTION_VIEW);
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intent.setData(Uri.parse(BuildConfig.OPENKEYCHAIN_URI));
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return intent;
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}
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static String getOpenKeychainPackage(Context context) {
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
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return prefs.getString("openpgp_provider", "org.sufficientlysecure.keychain");
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}
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static Intent getIntentIssue(Context context) {
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if (ActivityBilling.isPro(context)) {
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String version = BuildConfig.VERSION_NAME + "/" +
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(Helper.hasValidFingerprint(context) ? "1" : "3") +
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(BuildConfig.PLAY_STORE_RELEASE ? "p" : "") +
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(BuildConfig.DEBUG ? "d" : "") +
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(ActivityBilling.isPro(context) ? "+" : "");
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Intent intent = new Intent(Intent.ACTION_SEND);
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intent.setPackage(BuildConfig.APPLICATION_ID);
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intent.setType("text/plain");
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try {
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intent.putExtra(Intent.EXTRA_EMAIL, new String[]{Log.myAddress().getAddress()});
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} catch (UnsupportedEncodingException ex) {
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Log.w(ex);
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}
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intent.putExtra(Intent.EXTRA_SUBJECT, context.getString(R.string.title_issue_subject, version));
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return intent;
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} else
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return new Intent(Intent.ACTION_VIEW, Uri.parse(XDA_URI));
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}
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static Intent getIntentRate(Context context) {
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Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + BuildConfig.APPLICATION_ID));
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if (intent.resolveActivity(context.getPackageManager()) == null)
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intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://play.google.com/store/apps/details?id=" + BuildConfig.APPLICATION_ID));
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return intent;
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}
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// Graphics
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static int dp2pixels(Context context, int dp) {
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float scale = context.getResources().getDisplayMetrics().density;
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return Math.round(dp * scale);
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}
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static int pixels2dp(Context context, float pixels) {
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float scale = context.getResources().getDisplayMetrics().density;
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return Math.round(pixels / scale);
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}
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static float getTextSize(Context context, int zoom) {
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TypedArray ta = null;
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try {
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if (zoom == 0)
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ta = context.obtainStyledAttributes(
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R.style.TextAppearance_AppCompat_Small, new int[]{android.R.attr.textSize});
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else if (zoom == 2)
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ta = context.obtainStyledAttributes(
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R.style.TextAppearance_AppCompat_Large, new int[]{android.R.attr.textSize});
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else
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ta = context.obtainStyledAttributes(
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R.style.TextAppearance_AppCompat_Medium, new int[]{android.R.attr.textSize});
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return ta.getDimension(0, 0);
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} finally {
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if (ta != null)
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ta.recycle();
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}
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}
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static int resolveColor(Context context, int attr) {
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int[] attrs = new int[]{attr};
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TypedArray a = context.getTheme().obtainStyledAttributes(attrs);
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int color = a.getColor(0, 0xFF0000);
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a.recycle();
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return color;
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}
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static void setViewsEnabled(ViewGroup view, boolean enabled) {
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for (int i = 0; i < view.getChildCount(); i++) {
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View child = view.getChildAt(i);
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if (child instanceof Spinner ||
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child instanceof EditText ||
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child instanceof CheckBox ||
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child instanceof ImageView /* =ImageButton */ ||
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child instanceof RadioButton ||
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(child instanceof Button && "disable".equals(child.getTag())))
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child.setEnabled(enabled);
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else if (child instanceof BottomNavigationView) {
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Menu menu = ((BottomNavigationView) child).getMenu();
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menu.setGroupEnabled(0, enabled);
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} else if (child instanceof RecyclerView)
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; // do nothing
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else if (child instanceof ViewGroup)
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setViewsEnabled((ViewGroup) child, enabled);
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}
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}
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static void hide(View view) {
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view.setPadding(0, 0, 0, 0);
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ViewGroup.LayoutParams lparam = view.getLayoutParams();
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lparam.width = 0;
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lparam.height = 0;
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if (lparam instanceof ConstraintLayout.LayoutParams)
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((ConstraintLayout.LayoutParams) lparam).setMargins(0, 0, 0, 0);
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view.setLayoutParams(lparam);
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}
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static boolean isDarkTheme(Context context) {
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TypedValue tv = new TypedValue();
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context.getTheme().resolveAttribute(R.attr.themeName, tv, true);
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return (tv.string != null && !"light".contentEquals(tv.string));
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}
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static int adjustLuminance(int color, boolean dark, float min) {
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float lum = (float) ColorUtils.calculateLuminance(color);
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if (dark ? lum < min : lum > 1 - min)
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return ColorUtils.blendARGB(color,
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dark ? Color.WHITE : Color.BLACK,
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dark ? min - lum : lum - (1 - min));
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return color;
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}
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// Formatting
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private static final DecimalFormat df = new DecimalFormat("@@");
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static String humanReadableByteCount(long bytes, boolean si) {
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int unit = si ? 1000 : 1024;
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if (bytes < unit) return bytes + " B";
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int exp = (int) (Math.log(bytes) / Math.log(unit));
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String pre = (si ? "kMGTPE" : "KMGTPE").charAt(exp - 1) + (si ? "" : "i");
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return df.format(bytes / Math.pow(unit, exp)) + " " + pre + "B";
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}
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|
static boolean isPrintableChar(char c) {
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Character.UnicodeBlock block = Character.UnicodeBlock.of(c);
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|
if (block == null || block == Character.UnicodeBlock.SPECIALS)
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|
return false;
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return !Character.isISOControl(c);
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}
|
|
// https://issuetracker.google.com/issues/37054851
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|
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static DateFormat getTimeInstance(Context context) {
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return Helper.getTimeInstance(context, SimpleDateFormat.MEDIUM);
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|
}
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|
static DateFormat getDateInstance(Context context) {
|
|
return SimpleDateFormat.getDateInstance(SimpleDateFormat.MEDIUM);
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|
}
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|
|
static DateFormat getTimeInstance(Context context, int style) {
|
|
if (context != null &&
|
|
(style == SimpleDateFormat.SHORT || style == SimpleDateFormat.MEDIUM)) {
|
|
Locale locale = Locale.getDefault();
|
|
boolean is24Hour = android.text.format.DateFormat.is24HourFormat(context);
|
|
String skeleton = (is24Hour ? "Hm" : "hm");
|
|
if (style == SimpleDateFormat.MEDIUM)
|
|
skeleton += "s";
|
|
String pattern = android.text.format.DateFormat.getBestDateTimePattern(locale, skeleton);
|
|
return new SimpleDateFormat(pattern, locale);
|
|
} else
|
|
return SimpleDateFormat.getTimeInstance(style);
|
|
}
|
|
|
|
static DateFormat getDateTimeInstance(Context context) {
|
|
return Helper.getDateTimeInstance(context, SimpleDateFormat.MEDIUM, SimpleDateFormat.MEDIUM);
|
|
}
|
|
|
|
static DateFormat getDateTimeInstance(Context context, int dateStyle, int timeStyle) {
|
|
// TODO fix time format
|
|
return SimpleDateFormat.getDateTimeInstance(dateStyle, timeStyle);
|
|
}
|
|
|
|
static CharSequence getRelativeTimeSpanString(Context context, long millis) {
|
|
long now = System.currentTimeMillis();
|
|
long span = Math.abs(now - millis);
|
|
Time nowTime = new Time();
|
|
Time thenTime = new Time();
|
|
nowTime.set(now);
|
|
thenTime.set(millis);
|
|
if (span < DateUtils.DAY_IN_MILLIS && nowTime.weekDay == thenTime.weekDay)
|
|
return getTimeInstance(context, SimpleDateFormat.SHORT).format(millis);
|
|
else
|
|
return DateUtils.getRelativeTimeSpanString(context, millis);
|
|
}
|
|
|
|
static String ellipsize(String text, int maxLen) {
|
|
if (text == null || text.length() < maxLen) {
|
|
return text;
|
|
}
|
|
return text.substring(0, maxLen) + "...";
|
|
}
|
|
|
|
static void clearComposingText(Spannable text) {
|
|
Object[] spans = text.getSpans(0, text.length(), Object.class);
|
|
for (Object span : spans)
|
|
if ((text.getSpanFlags(span) & Spanned.SPAN_COMPOSING) != 0)
|
|
text.removeSpan(span);
|
|
}
|
|
|
|
static String localizeFolderType(Context context, String type) {
|
|
int resid = context.getResources().getIdentifier(
|
|
"title_folder_" + type.toLowerCase(Locale.ROOT),
|
|
"string",
|
|
context.getPackageName());
|
|
return (resid > 0 ? context.getString(resid) : type);
|
|
}
|
|
|
|
static String localizeFolderName(Context context, String name) {
|
|
if (name != null && "INBOX".equals(name.toUpperCase()))
|
|
return context.getString(R.string.title_folder_inbox);
|
|
else if ("OUTBOX".equals(name))
|
|
return context.getString(R.string.title_folder_outbox);
|
|
else
|
|
return name;
|
|
}
|
|
|
|
static void linkPro(final TextView tv) {
|
|
if (ActivityBilling.isPro(tv.getContext()) && !BuildConfig.DEBUG)
|
|
hide(tv);
|
|
else {
|
|
tv.getPaint().setUnderlineText(true);
|
|
tv.setOnClickListener(new View.OnClickListener() {
|
|
@Override
|
|
public void onClick(View view) {
|
|
tv.getContext().startActivity(new Intent(tv.getContext(), ActivityBilling.class));
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
static String[] getStrings(Context context, int resid, Object... formatArgs) {
|
|
List<String> result = new ArrayList<>();
|
|
|
|
Configuration configuration = new Configuration(context.getResources().getConfiguration());
|
|
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
|
|
result.add(context.getString(resid, formatArgs));
|
|
if (!Locale.getDefault().getLanguage().equals("en")) {
|
|
configuration.setLocale(new Locale("en"));
|
|
Resources res = context.createConfigurationContext(configuration).getResources();
|
|
result.add(res.getString(resid, formatArgs));
|
|
}
|
|
} else {
|
|
LocaleList ll = context.getResources().getConfiguration().getLocales();
|
|
for (int i = 0; i < ll.size(); i++) {
|
|
configuration.setLocale(ll.get(i));
|
|
Resources res = context.createConfigurationContext(configuration).getResources();
|
|
result.add(res.getString(resid, formatArgs));
|
|
}
|
|
}
|
|
|
|
return result.toArray(new String[0]);
|
|
}
|
|
|
|
static boolean containsWhiteSpace(String text) {
|
|
return text.matches(".*\\s+.*");
|
|
}
|
|
|
|
static boolean containsControlChars(String text) {
|
|
for (int offset = 0; offset < text.length(); ) {
|
|
int codePoint = text.codePointAt(offset);
|
|
offset += Character.charCount(codePoint);
|
|
switch (Character.getType(codePoint)) {
|
|
case Character.CONTROL: // \p{Cc}
|
|
case Character.FORMAT: // \p{Cf}
|
|
case Character.PRIVATE_USE: // \p{Co}
|
|
case Character.SURROGATE: // \p{Cs}
|
|
case Character.UNASSIGNED: // \p{Cn}
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Files
|
|
|
|
static String sanitizeFilename(String name) {
|
|
if (name == null)
|
|
return null;
|
|
|
|
return name.replaceAll("[?:\"*|/\\\\<>]", "_");
|
|
}
|
|
|
|
static String getExtension(String filename) {
|
|
if (filename == null)
|
|
return null;
|
|
int index = filename.lastIndexOf(".");
|
|
if (index < 0)
|
|
return null;
|
|
return filename.substring(index + 1);
|
|
}
|
|
|
|
static String guessMimeType(String filename) {
|
|
String type = null;
|
|
|
|
String extension = Helper.getExtension(filename);
|
|
if (extension != null)
|
|
type = MimeTypeMap.getSingleton()
|
|
.getMimeTypeFromExtension(extension.toLowerCase(Locale.ROOT));
|
|
|
|
if (TextUtils.isEmpty(type))
|
|
type = "application/octet-stream";
|
|
|
|
return type;
|
|
}
|
|
|
|
static void writeText(File file, String content) throws IOException {
|
|
try (FileOutputStream out = new FileOutputStream(file)) {
|
|
if (content != null)
|
|
out.write(content.getBytes());
|
|
}
|
|
}
|
|
|
|
static String readStream(InputStream is, String charset) throws IOException {
|
|
ByteArrayOutputStream os = new ByteArrayOutputStream(Math.max(BUFFER_SIZE, is.available()));
|
|
byte[] buffer = new byte[BUFFER_SIZE];
|
|
for (int len = is.read(buffer); len != -1; len = is.read(buffer))
|
|
os.write(buffer, 0, len);
|
|
return new String(os.toByteArray(), charset);
|
|
}
|
|
|
|
static String readText(File file) throws IOException {
|
|
try (FileInputStream in = new FileInputStream(file)) {
|
|
return readStream(in, StandardCharsets.UTF_8.name());
|
|
}
|
|
}
|
|
|
|
static void copy(File src, File dst) throws IOException {
|
|
try (InputStream in = new FileInputStream(src)) {
|
|
try (FileOutputStream out = new FileOutputStream(dst)) {
|
|
copy(in, out);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void copy(InputStream in, OutputStream out) throws IOException {
|
|
byte[] buf = new byte[BUFFER_SIZE];
|
|
int len;
|
|
while ((len = in.read(buf)) > 0)
|
|
out.write(buf, 0, len);
|
|
}
|
|
|
|
static long getAvailableStorageSpace() {
|
|
StatFs stats = new StatFs(Environment.getDataDirectory().getAbsolutePath());
|
|
return stats.getAvailableBlocksLong() * stats.getBlockSizeLong();
|
|
}
|
|
|
|
static long getTotalStorageSpace() {
|
|
StatFs stats = new StatFs(Environment.getDataDirectory().getAbsolutePath());
|
|
return stats.getTotalBytes();
|
|
}
|
|
|
|
static void openAdvanced(Intent intent) {
|
|
// https://issuetracker.google.com/issues/72053350
|
|
intent.putExtra("android.content.extra.SHOW_ADVANCED", true);
|
|
intent.putExtra("android.content.extra.FANCY", true);
|
|
intent.putExtra("android.content.extra.SHOW_FILESIZE", true);
|
|
intent.putExtra("android.provider.extra.SHOW_ADVANCED", true);
|
|
}
|
|
|
|
// Cryptography
|
|
|
|
static String sha256(String data) throws NoSuchAlgorithmException {
|
|
return sha256(data.getBytes());
|
|
}
|
|
|
|
static String sha1(byte[] data) throws NoSuchAlgorithmException {
|
|
return sha("SHA-1", data);
|
|
}
|
|
|
|
static String sha256(byte[] data) throws NoSuchAlgorithmException {
|
|
return sha("SHA-256", data);
|
|
}
|
|
|
|
static String md5(byte[] data) throws NoSuchAlgorithmException {
|
|
return sha("MD5", data);
|
|
}
|
|
|
|
static String sha(String digest, byte[] data) throws NoSuchAlgorithmException {
|
|
byte[] bytes = MessageDigest.getInstance(digest).digest(data);
|
|
StringBuilder sb = new StringBuilder();
|
|
for (byte b : bytes)
|
|
sb.append(String.format("%02x", b));
|
|
return sb.toString();
|
|
}
|
|
|
|
static String getFingerprint(Context context) {
|
|
try {
|
|
PackageManager pm = context.getPackageManager();
|
|
String pkg = context.getPackageName();
|
|
PackageInfo info = pm.getPackageInfo(pkg, PackageManager.GET_SIGNATURES);
|
|
byte[] cert = info.signatures[0].toByteArray();
|
|
MessageDigest digest = MessageDigest.getInstance("SHA1");
|
|
byte[] bytes = digest.digest(cert);
|
|
StringBuilder sb = new StringBuilder();
|
|
for (byte b : bytes)
|
|
sb.append(Integer.toString(b & 0xff, 16).toUpperCase());
|
|
return sb.toString();
|
|
} catch (Throwable ex) {
|
|
Log.e(ex);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
static boolean hasValidFingerprint(Context context) {
|
|
String signed = getFingerprint(context);
|
|
String expected = context.getString(R.string.fingerprint);
|
|
return Objects.equals(signed, expected);
|
|
}
|
|
|
|
static boolean canAuthenticate(Context context) {
|
|
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
|
|
String pin = prefs.getString("pin", null);
|
|
if (!TextUtils.isEmpty(pin))
|
|
return true;
|
|
|
|
BiometricManager bm = BiometricManager.from(context);
|
|
return (bm.canAuthenticate() == BiometricManager.BIOMETRIC_SUCCESS);
|
|
}
|
|
|
|
static boolean shouldAuthenticate(Context context) {
|
|
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
|
|
boolean biometrics = prefs.getBoolean("biometrics", false);
|
|
String pin = prefs.getString("pin", null);
|
|
|
|
if (biometrics || !TextUtils.isEmpty(pin)) {
|
|
long now = new Date().getTime();
|
|
long last_authentication = prefs.getLong("last_authentication", 0);
|
|
long biometrics_timeout = prefs.getInt("biometrics_timeout", 2) * 60 * 1000L;
|
|
Log.i("Authentication valid until=" + new Date(last_authentication + biometrics_timeout));
|
|
|
|
if (last_authentication + biometrics_timeout < now)
|
|
return true;
|
|
|
|
prefs.edit().putLong("last_authentication", now).apply();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void authenticate(final FragmentActivity activity,
|
|
Boolean enabled, final
|
|
Runnable authenticated, final Runnable cancelled) {
|
|
final Handler handler = new Handler();
|
|
|
|
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
|
|
String pin = prefs.getString("pin", null);
|
|
|
|
if (enabled != null || TextUtils.isEmpty(pin)) {
|
|
BiometricPrompt.PromptInfo.Builder info = new BiometricPrompt.PromptInfo.Builder()
|
|
.setTitle(activity.getString(enabled == null ? R.string.app_name : R.string.title_setup_biometrics));
|
|
|
|
KeyguardManager kgm = (KeyguardManager) activity.getSystemService(Context.KEYGUARD_SERVICE);
|
|
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && kgm != null && kgm.isDeviceSecure())
|
|
info.setDeviceCredentialAllowed(true);
|
|
else
|
|
info.setNegativeButtonText(activity.getString(android.R.string.cancel));
|
|
|
|
info.setConfirmationRequired(false);
|
|
|
|
info.setSubtitle(activity.getString(enabled == null ? R.string.title_setup_biometrics_unlock
|
|
: enabled
|
|
? R.string.title_setup_biometrics_disable
|
|
: R.string.title_setup_biometrics_enable));
|
|
|
|
BiometricPrompt prompt = new BiometricPrompt(activity, executor,
|
|
new BiometricPrompt.AuthenticationCallback() {
|
|
@Override
|
|
public void onAuthenticationError(final int errorCode, @NonNull final CharSequence errString) {
|
|
Log.w("Biometric error " + errorCode + ": " + errString);
|
|
|
|
if (errorCode != BiometricPrompt.ERROR_NEGATIVE_BUTTON &&
|
|
errorCode != BiometricPrompt.ERROR_CANCELED &&
|
|
errorCode != BiometricPrompt.ERROR_USER_CANCELED)
|
|
handler.post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
ToastEx.makeText(activity,
|
|
"Error " + errorCode + ": " + errString,
|
|
Toast.LENGTH_LONG).show();
|
|
}
|
|
});
|
|
|
|
handler.post(cancelled);
|
|
}
|
|
|
|
@Override
|
|
public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) {
|
|
Log.i("Biometric succeeded");
|
|
setAuthenticated(activity);
|
|
handler.post(authenticated);
|
|
}
|
|
|
|
@Override
|
|
public void onAuthenticationFailed() {
|
|
Log.w("Biometric failed");
|
|
handler.post(cancelled);
|
|
}
|
|
});
|
|
|
|
prompt.authenticate(info.build());
|
|
} else {
|
|
final View dview = LayoutInflater.from(activity).inflate(R.layout.dialog_pin_ask, null);
|
|
final EditText etPin = dview.findViewById(R.id.etPin);
|
|
|
|
final AlertDialog dialog = new AlertDialog.Builder(activity)
|
|
.setView(dview)
|
|
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
|
|
@Override
|
|
public void onClick(DialogInterface dialog, int which) {
|
|
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
|
|
String pin = prefs.getString("pin", "");
|
|
String entered = etPin.getText().toString();
|
|
|
|
if (pin.equals(entered)) {
|
|
setAuthenticated(activity);
|
|
handler.post(authenticated);
|
|
} else
|
|
handler.post(cancelled);
|
|
}
|
|
})
|
|
.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
|
|
@Override
|
|
public void onClick(DialogInterface dialog, int which) {
|
|
handler.post(cancelled);
|
|
}
|
|
})
|
|
.setOnDismissListener(new DialogInterface.OnDismissListener() {
|
|
@Override
|
|
public void onDismiss(DialogInterface dialog) {
|
|
handler.post(cancelled);
|
|
}
|
|
})
|
|
.create();
|
|
|
|
etPin.setOnEditorActionListener(new TextView.OnEditorActionListener() {
|
|
@Override
|
|
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
|
|
if (actionId == EditorInfo.IME_ACTION_DONE) {
|
|
dialog.getButton(DialogInterface.BUTTON_POSITIVE).performClick();
|
|
return true;
|
|
} else
|
|
return false;
|
|
}
|
|
});
|
|
|
|
etPin.setOnFocusChangeListener(new View.OnFocusChangeListener() {
|
|
@Override
|
|
public void onFocusChange(View v, boolean hasFocus) {
|
|
if (hasFocus)
|
|
dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
|
|
}
|
|
});
|
|
|
|
new Handler().post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
etPin.requestFocus();
|
|
}
|
|
});
|
|
|
|
dialog.show();
|
|
}
|
|
}
|
|
|
|
static void setAuthenticated(Context context) {
|
|
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
|
|
prefs.edit().putLong("last_authentication", new Date().getTime()).apply();
|
|
}
|
|
|
|
static void clearAuthentication(Context context) {
|
|
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
|
|
prefs.edit().remove("last_authentication").apply();
|
|
}
|
|
|
|
static void selectKeyAlias(final Activity activity, final LifecycleOwner owner, final String email, final IKeyAlias intf) {
|
|
final Context context = activity.getApplicationContext();
|
|
final Handler handler = new Handler();
|
|
|
|
new Thread(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
if (email != null)
|
|
try {
|
|
if (KeyChain.getPrivateKey(context, email) != null) {
|
|
Log.i("Private key available alias=" + email);
|
|
handler.post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
if (owner.getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.STARTED))
|
|
intf.onSelected(email);
|
|
}
|
|
});
|
|
return;
|
|
}
|
|
} catch (KeyChainException ex) {
|
|
Log.w(ex);
|
|
} catch (Throwable ex) {
|
|
Log.e(ex);
|
|
}
|
|
|
|
handler.post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
KeyChain.choosePrivateKeyAlias(activity, new KeyChainAliasCallback() {
|
|
@Override
|
|
public void alias(@Nullable final String alias) {
|
|
Log.i("Selected key alias=" + alias);
|
|
handler.post(new Runnable() {
|
|
@Override
|
|
public void run() {
|
|
if (owner.getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.STARTED)) {
|
|
if (alias == null)
|
|
intf.onNothingSelected();
|
|
else
|
|
intf.onSelected(alias);
|
|
} else {
|
|
owner.getLifecycle().addObserver(new LifecycleObserver() {
|
|
@OnLifecycleEvent(Lifecycle.Event.ON_START)
|
|
public void onStart() {
|
|
owner.getLifecycle().removeObserver(this);
|
|
if (alias == null)
|
|
intf.onNothingSelected();
|
|
else
|
|
intf.onSelected(alias);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
});
|
|
}
|
|
},
|
|
null, null, null, -1, email);
|
|
}
|
|
});
|
|
}
|
|
}).start();
|
|
}
|
|
|
|
interface IKeyAlias {
|
|
void onSelected(String alias);
|
|
|
|
void onNothingSelected();
|
|
}
|
|
|
|
public static String HMAC(String algo, int blocksize, byte[] key, byte[] text) throws NoSuchAlgorithmException {
|
|
MessageDigest md = MessageDigest.getInstance(algo);
|
|
|
|
if (key.length > blocksize)
|
|
key = md.digest(key);
|
|
|
|
byte[] ipad = new byte[blocksize];
|
|
byte[] opad = new byte[blocksize];
|
|
|
|
for (int i = 0; i < key.length; i++) {
|
|
ipad[i] = key[i];
|
|
opad[i] = key[i];
|
|
}
|
|
|
|
for (int i = 0; i < blocksize; i++) {
|
|
ipad[i] ^= 0x36;
|
|
opad[i] ^= 0x5c;
|
|
}
|
|
|
|
byte[] digest;
|
|
|
|
md.update(ipad);
|
|
md.update(text);
|
|
digest = md.digest();
|
|
|
|
md.update(opad);
|
|
md.update(digest);
|
|
digest = md.digest();
|
|
|
|
StringBuilder sb = new StringBuilder();
|
|
for (byte b : digest)
|
|
sb.append(String.format("%02x", b));
|
|
return sb.toString();
|
|
}
|
|
|
|
// Miscellaneous
|
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static <T> List<List<T>> chunkList(List<T> list, int size) {
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List<List<T>> result = new ArrayList<>(list.size() / size);
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for (int i = 0; i < list.size(); i += size)
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result.add(list.subList(i, i + size < list.size() ? i + size : list.size()));
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return result;
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}
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static long[] toLongArray(List<Long> list) {
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long[] result = new long[list.size()];
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for (int i = 0; i < list.size(); i++)
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result[i] = list.get(i);
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return result;
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}
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static List<Long> fromLongArray(long[] array) {
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List<Long> result = new ArrayList<>();
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for (int i = 0; i < array.length; i++)
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result.add(array[i]);
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return result;
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}
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static boolean equal(String[] a1, String[] a2) {
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if (a1.length != a2.length)
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return false;
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for (int i = 0; i < a1.length; i++)
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if (!a1[i].equals(a2[i]))
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return false;
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return true;
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}
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static int getSize(Bundle bundle) {
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Parcel p = Parcel.obtain();
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bundle.writeToParcel(p, 0);
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return p.dataSize();
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}
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}
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