488 lines
16 KiB
C#
488 lines
16 KiB
C#
/*
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This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.
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Keepass2Android 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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Keepass2Android 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 Keepass2Android. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using Android.App;
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using Android.Content;
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using Android.Database;
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using Android.OS;
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using Android.Preferences;
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using Android.Provider;
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using Android.Views;
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using Android.Widget;
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using Android.Content.PM;
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using Android.Content.Res;
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using Android.Graphics;
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using Android.Graphics.Drawables;
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using Android.Util;
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using KeePassLib.Serialization;
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using Uri = Android.Net.Uri;
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namespace keepass2android
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{
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public class Util {
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public static Bitmap DrawableToBitmap(Drawable drawable)
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{
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Bitmap bitmap = null;
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if (drawable is BitmapDrawable)
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{
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BitmapDrawable bitmapDrawable = (BitmapDrawable)drawable;
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if (bitmapDrawable.Bitmap != null)
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{
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return bitmapDrawable.Bitmap;
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}
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}
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if (drawable.IntrinsicWidth <= 0 || drawable.IntrinsicHeight <= 0)
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{
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bitmap = Bitmap.CreateBitmap(1, 1, Bitmap.Config.Argb8888); // Single color bitmap will be created of 1x1 pixel
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}
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else
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{
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bitmap = Bitmap.CreateBitmap(drawable.IntrinsicWidth, drawable.IntrinsicHeight, Bitmap.Config.Argb8888);
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}
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Canvas canvas = new Canvas(bitmap);
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drawable.SetBounds(0, 0, canvas.Width, canvas.Height);
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drawable.Draw(canvas);
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return bitmap;
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}
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public static float convertDpToPixel(float dp, Context context)
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{
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Resources resources = context.Resources;
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DisplayMetrics metrics = resources.DisplayMetrics;
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float px = dp * metrics.Density;
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return px;
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}
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public static String GetClipboard(Context context) {
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Android.Text.ClipboardManager clipboard = (Android.Text.ClipboardManager) context.GetSystemService(Context.ClipboardService);
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return clipboard.Text;
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}
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public static void CopyToClipboard(Context context, String text) {
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Android.Text.ClipboardManager clipboard = (Android.Text.ClipboardManager) context.GetSystemService(Context.ClipboardService);
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clipboard.Text = text;
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//some devices don't accept empty strings. Replace with *** then.
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if (clipboard.Text == "")
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clipboard.Text = "***";
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}
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public static void GotoUrl(Context context, String url) {
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if ( !string.IsNullOrEmpty(url) ) {
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if (url.StartsWith("androidapp://"))
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{
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string packageName = url.Substring("androidapp://".Length);
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Intent startKp2aIntent = context.PackageManager.GetLaunchIntentForPackage(packageName);
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if (startKp2aIntent != null)
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{
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startKp2aIntent.AddCategory(Intent.CategoryLauncher);
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startKp2aIntent.AddFlags(ActivityFlags.NewTask);
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context.StartActivity(startKp2aIntent);
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}
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}
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else
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{
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Uri uri = Uri.Parse(url);
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context.StartActivity(new Intent(
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url.StartsWith("tel:") ? Intent.ActionDial : Intent.ActionView,
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uri));
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}
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}
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}
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public static void GotoUrl(Context context, int resId) {
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GotoUrl(context, context.GetString(resId));
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}
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public static void GotoMarket(Context context)
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{
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GotoUrl(context, context.GetString(Resource.String.MarketURL)+context.PackageName);
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}
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public static bool GotoDonateUrl(Context context)
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{
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string donateUrl = context.GetString(Resource.String.donate_url,
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new Java.Lang.Object[]{context.Resources.Configuration.Locale.Language,
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context.PackageName
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});
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try
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{
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GotoUrl(context, donateUrl);
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return true;
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}
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catch (ActivityNotFoundException)
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{
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Toast.MakeText(context, Resource.String.error_failed_to_launch_link, ToastLength.Long).Show();
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return false;
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}
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}
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public static String GetEditText(Activity act, int resId) {
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TextView te = (TextView) act.FindViewById(resId);
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System.Diagnostics.Debug.Assert(te != null);
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if (te != null) {
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return te.Text;
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} else {
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return "";
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}
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}
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public static void SetEditText(Activity act, int resId, String str) {
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TextView te = (TextView) act.FindViewById(resId);
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System.Diagnostics.Debug.Assert(te != null);
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if (te != null) {
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te.Text = str;
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}
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}
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/**
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* Indicates whether the specified action can be used as an intent. This
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* method queries the package manager for installed packages that can
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* respond to an intent with the specified action. If no suitable package is
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* found, this method returns false.
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*
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* @param context The application's environment.
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* @param action The Intent action to check for availability.
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*
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* @return True if an Intent with the specified action can be sent and
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* responded to, false otherwise.
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*/
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static bool IsIntentAvailable(Context context, String action, String type, List<String> categories )
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{
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PackageManager packageManager = context.PackageManager;
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Intent intent = new Intent(action);
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if (type != null)
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intent.SetType(type);
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if (categories != null)
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categories.ForEach(c => intent.AddCategory(c));
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IList<ResolveInfo> list =
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packageManager.QueryIntentActivities(intent,
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PackageInfoFlags.MatchDefaultOnly);
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foreach (ResolveInfo i in list)
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Kp2aLog.Log(i.ActivityInfo.ApplicationInfo.PackageName);
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return list.Count > 0;
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}
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/// <summary>
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/// Opens a browse dialog for selecting a file.
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/// </summary>
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/// <param name="activity">context activity</param>
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/// <param name="requestCodeBrowse">requestCode for onActivityResult</param>
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/// <param name="forSaving">if true, the file location is meant for saving</param>
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/// <param name="tryGetPermanentAccess">if true, the caller prefers a location that can be used permanently
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/// This means that ActionOpenDocument should be used instead of ActionGetContent (for not saving), as ActionGetContent
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/// is more for one-time access, but therefore allows possibly more available sources.</param>
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public static void ShowBrowseDialog(Activity activity, int requestCodeBrowse, bool forSaving, bool tryGetPermanentAccess)
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{
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var loadAction = (tryGetPermanentAccess && IsKitKatOrLater) ?
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Intent.ActionOpenDocument : Intent.ActionGetContent;
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if ((!forSaving) && (IsIntentAvailable(activity, loadAction, "*/*", new List<string> { Intent.CategoryOpenable})))
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{
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Intent i = new Intent(loadAction);
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i.SetType("*/*");
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i.AddCategory(Intent.CategoryOpenable);
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activity.StartActivityForResult(i, requestCodeBrowse);
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}
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else
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{
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if ((forSaving) && (IsKitKatOrLater))
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{
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Intent i = new Intent(Intent.ActionCreateDocument);
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i.SetType("*/*");
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i.AddCategory(Intent.CategoryOpenable);
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activity.StartActivityForResult(i, requestCodeBrowse);
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}
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else
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{
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string defaultPath = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath;
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ShowInternalLocalFileChooser(activity, requestCodeBrowse, forSaving, defaultPath);
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}
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}
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}
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public static bool IsKitKatOrLater
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{
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get { return (int)Build.VERSION.SdkInt >= 19; }
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}
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private static void ShowInternalLocalFileChooser(Activity act, int requestCodeBrowse, bool forSaving, string defaultPath)
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{
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#if !EXCLUDE_FILECHOOSER
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string fileProviderAuthority = act.PackageName+".android-filechooser.localfile";
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Intent i = Keepass2android.Kp2afilechooser.Kp2aFileChooserBridge.GetLaunchFileChooserIntent(act,
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fileProviderAuthority,
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defaultPath);
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if (forSaving)
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i.PutExtra("group.pals.android.lib.ui.filechooser.FileChooserActivity.save_dialog", true);
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act.StartActivityForResult(i, requestCodeBrowse);
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#else
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Toast.MakeText(act, "File Chooser excluded!",ToastLength.Long).Show();
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#endif
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}
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/// <summary>
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/// Tries to extract the filename from the intent. Returns that filename or null if no success
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/// (e.g. on content-URIs in Android KitKat+).
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/// Guarantees that the file exists.
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/// </summary>
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public static string IntentToFilename(Intent data, Context ctx)
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{
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string s = GetFilenameFromInternalFileChooser(data, ctx);
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if (!String.IsNullOrEmpty(s))
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return s;
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try
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{
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Uri uri = data.Data;
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if ((uri != null) && (uri.Scheme == "content"))
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{
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String[] col = new String[] {MediaStore.MediaColumns.Data};
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ICursor c1 = ctx.ContentResolver.Query(uri, col, null, null, null);
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c1.MoveToFirst();
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var possibleFilename = c1.GetString(0);
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if (File.Exists(possibleFilename))
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return possibleFilename;
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}
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}
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catch (Exception e)
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{
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Kp2aLog.LogUnexpectedError(e);
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}
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String filename = data.Data.Path;
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if ((String.IsNullOrEmpty(filename) || (!File.Exists(filename))))
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filename = data.DataString;
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if (File.Exists(filename))
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return filename;
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//found no valid file
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return null;
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}
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public static string GetFilenameFromInternalFileChooser(Intent data, Context ctx)
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{
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#if !EXCLUDE_FILECHOOSER
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string EXTRA_RESULTS = "group.pals.android.lib.ui.filechooser.FileChooserActivity.results";
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if (data.HasExtra(EXTRA_RESULTS))
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{
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IList uris = data.GetParcelableArrayListExtra(EXTRA_RESULTS);
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Uri uri = (Uri) uris[0];
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{
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return Group.Pals.Android.Lib.UI.Filechooser.Providers.BaseFileProviderUtils.GetRealUri(ctx, uri).ToString();
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}
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}
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#endif
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return null;
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}
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public static bool HasActionBar(Activity activity)
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{
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//Actionbar is available since 11, but the layout has its own "pseudo actionbar" until 13
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return ((int)Android.OS.Build.VERSION.SdkInt >= 14) && (activity.ActionBar != null);
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}
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public delegate bool FileSelectedHandler(string filename);
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public class DismissListener: Java.Lang.Object, IDialogInterfaceOnDismissListener
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{
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private readonly Action _onDismiss;
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public DismissListener(Action onDismiss)
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{
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_onDismiss = onDismiss;
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}
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public void OnDismiss(IDialogInterface dialog)
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{
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_onDismiss();
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}
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}
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class CancelListener: Java.Lang.Object, IDialogInterfaceOnCancelListener
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{
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private readonly Action _onCancel;
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public CancelListener(Action onCancel)
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{
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_onCancel = onCancel;
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}
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public void OnCancel(IDialogInterface dialog)
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{
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_onCancel();
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}
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}
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public static void ShowFilenameDialog(Activity activity, Func<string, Dialog, bool> onOpen, Func<string, Dialog, bool> onCreate, Action onCancel, bool showBrowseButton, string defaultFilename, string detailsText, int requestCodeBrowse)
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{
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AlertDialog.Builder builder = new AlertDialog.Builder(activity);
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builder.SetView(activity.LayoutInflater.Inflate(Resource.Layout.file_selection_filename, null));
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if (onCancel != null)
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builder.SetOnCancelListener(new CancelListener(onCancel));
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Dialog dialog = builder.Create();
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dialog.Show();
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Button openButton = (Button) dialog.FindViewById(Resource.Id.open);
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Button createButton = (Button) dialog.FindViewById(Resource.Id.create);
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TextView enterFilenameDetails = (TextView) dialog.FindViewById(Resource.Id.label_open_by_filename_details);
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openButton.Visibility = onOpen != null ? ViewStates.Visible : ViewStates.Gone;
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createButton.Visibility = onCreate != null? ViewStates.Visible : ViewStates.Gone;
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// Set the initial value of the filename
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EditText editFilename = (EditText) dialog.FindViewById(Resource.Id.file_filename);
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editFilename.Text = defaultFilename;
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enterFilenameDetails.Text = detailsText;
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enterFilenameDetails.Visibility = enterFilenameDetails.Text == "" ? ViewStates.Gone : ViewStates.Visible;
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// Open button
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if (onOpen != null)
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openButton.Click += (sender, args) =>
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{
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String fileName = ((EditText) dialog.FindViewById(Resource.Id.file_filename)).Text;
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if (onOpen(fileName, dialog))
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dialog.Dismiss();
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};
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// Create button
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if (onCreate != null)
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createButton.Click += (sender, args) =>
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{
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String fileName = ((EditText)dialog.FindViewById(Resource.Id.file_filename)).Text;
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if (onCreate(fileName, dialog))
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dialog.Dismiss();
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};
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Button cancelButton = (Button) dialog.FindViewById(Resource.Id.fnv_cancel);
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cancelButton.Click += delegate
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{
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dialog.Dismiss();
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if (onCancel != null)
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onCancel();
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};
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ImageButton browseButton = (ImageButton) dialog.FindViewById(Resource.Id.browse_button);
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if (!showBrowseButton)
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{
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browseButton.Visibility = ViewStates.Invisible;
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}
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browseButton.Click += (sender, evt) =>
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{
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string filename = ((EditText) dialog.FindViewById(Resource.Id.file_filename)).Text;
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Util.ShowBrowseDialog(activity, requestCodeBrowse, onCreate != null, /*TODO should we prefer ActionOpenDocument here?*/ false);
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};
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}
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public static void QueryCredentials(IOConnectionInfo ioc, Action<IOConnectionInfo> afterQueryCredentials, Activity activity)
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{
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//Build dialog to query credentials:
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AlertDialog.Builder builder = new AlertDialog.Builder(activity);
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builder.SetTitle(activity.GetString(Resource.String.credentials_dialog_title));
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builder.SetPositiveButton(activity.GetString(Android.Resource.String.Ok), (dlgSender, dlgEvt) =>
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{
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Dialog dlg = (Dialog)dlgSender;
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string username = ((EditText)dlg.FindViewById(Resource.Id.cred_username)).Text;
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string password = ((EditText)dlg.FindViewById(Resource.Id.cred_password)).Text;
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int credentialRememberMode = ((Spinner)dlg.FindViewById(Resource.Id.cred_remember_mode)).SelectedItemPosition;
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ioc.UserName = username;
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ioc.Password = password;
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ioc.CredSaveMode = (IOCredSaveMode)credentialRememberMode;
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afterQueryCredentials(ioc);
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});
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builder.SetView(activity.LayoutInflater.Inflate(Resource.Layout.url_credentials, null));
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builder.SetNeutralButton(activity.GetString(Android.Resource.String.Cancel),
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(dlgSender, dlgEvt) => { });
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Dialog dialog = builder.Create();
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dialog.Show();
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((EditText)dialog.FindViewById(Resource.Id.cred_username)).Text = ioc.UserName;
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((EditText)dialog.FindViewById(Resource.Id.cred_password)).Text = ioc.Password;
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((Spinner)dialog.FindViewById(Resource.Id.cred_remember_mode)).SetSelection((int)ioc.CredSaveMode);
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}
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public static void FinishAndForward(Activity activity, Intent i)
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{
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i.SetFlags(ActivityFlags.ForwardResult);
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activity.StartActivity(i);
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activity.Finish();
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}
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public static void PrepareDonateOptionMenu(IMenu menu, Context ctx)
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{
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var donateItem = menu.FindItem(Resource.Id.menu_donate);
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if (donateItem != null)
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{
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donateItem.SetVisible(
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!PreferenceManager.GetDefaultSharedPreferences(ctx)
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.GetBoolean(ctx.GetString(Resource.String.NoDonateOption_key), false)
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);
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}
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}
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public static bool GetShowKeyboardDuringFingerprintUnlock(Context ctx)
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{
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return (PreferenceManager.GetDefaultSharedPreferences(ctx).GetBoolean(
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ctx.GetString(Resource.String.ShowKeyboardWhileFingerprint_key), true));
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}
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public static void MoveBottomBarButtons(int btn1Id, int btn2Id, int bottomBarId, Activity context)
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{
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var btn1 = context.FindViewById<Button>(btn1Id);
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var btn2 = context.FindViewById<Button>(btn2Id);
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var rl = context.FindViewById<RelativeLayout>(bottomBarId);
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rl.ViewTreeObserver.GlobalLayout += (sender, args) =>
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{
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if (btn1.Width + btn2.Width > rl.Width)
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{
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btn2.SetPadding(btn2.PaddingLeft, (int) Util.convertDpToPixel(40, context), btn2.PaddingRight, btn2.PaddingBottom);
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}
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};
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}
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}
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}
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