Files
keepass2android/src/keepass2android-app/Utils/Util.cs
2025-06-17 08:27:13 +02:00

881 lines
32 KiB
C#

/*
This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.
Keepass2Android is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Keepass2Android is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Keepass2Android. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
using Android.App;
using Android.Content;
using Android.Database;
using Android.OS;
using Android.Preferences;
using Android.Provider;
using Android.Views;
using Android.Widget;
using Android.Content.PM;
using Android.Content.Res;
using Android.Graphics;
using Android.Graphics.Drawables;
using Android.Hardware.Display;
using Android.Util;
using Android.Views.InputMethods;
using AndroidX.Core.View.InputMethod;
using Google.Android.Material.Dialog;
using KeePass.Util;
using keepass2android;
using KeePassLib;
using KeePassLib.Security;
using KeePassLib.Serialization;
using Org.Apache.Http.Util;
using Uri = Android.Net.Uri;
namespace keepass2android
{
public class LocaleManager
{
public static Context LocalizedAppContext
{
get
{
//the standard way of setting locale on the app context is through Application.AttachBaseContext,
//but because of https://bugzilla.xamarin.com/11/11182/bug.html this doesn't work
return setLocale(Application.Context);
}
}
public static Context setLocale(Context c)
{
return setNewLocale(c, getLanguage(c));
}
public static Context setNewLocale(Context c, String language)
{
return updateResources(c, language);
}
static string _language;
public static string Language
{
get { return _language; }
set { _language = value;languageLoaded = true;
}
}
static bool languageLoaded = false;
public static String getLanguage(Context c)
{
if (!languageLoaded)
{
var langPref = PreferenceManager.GetDefaultSharedPreferences(c).GetString(c.GetString(Resource.String.app_language_pref_key), null);
Language = LanguageEntry.PrefCodeToLanguage(langPref);
}
return Language;
}
private static Context updateResources(Context context, String language)
{
if (language == null)
return context;
Java.Util.Locale locale = new Java.Util.Locale(language);
Java.Util.Locale.Default = locale;
Resources res = context.Resources;
Configuration config = new Configuration(res.Configuration);
if ((int)Build.VERSION.SdkInt >= 17)
{
config.SetLocale(locale);
context = context.CreateConfigurationContext(config);
}
else
{
config.Locale = locale;
res.UpdateConfiguration(config, res.DisplayMetrics);
}
return context;
}
}
/// <summary>
/// A small container/wrapper that helps with the building and sorting of the
/// Language Preference list, and interoperability between it and LocaleManager
/// </summary>
class LanguageEntry
{
// "System language" preference code; maps to LocaleManager.Language = null
private const string SYS_LANG_CODE = "SysLang";
// Preference code (2-char lowercase, or SYS_LANG_CODE)
public readonly string Code;
// Localized display name
public readonly string Name;
// True if this LanguageEntry is the "System language", false otherwise
public readonly bool IsSystem;
/// <summary>
/// Creates a LanguageEntry from a Locale
/// </summary>
/// <param name="from"></param>
/// <returns></returns>
public static LanguageEntry OfLocale(Java.Util.Locale from)
{
return new LanguageEntry(from.Language, from.DisplayLanguage, false);
}
/// <summary>
/// Creates the "System language" LanguageEntry with the given localized display name,
/// special preference code, marked as a System entry.
/// </summary>
/// <param name="displayName"></param>
/// <returns></returns>
public static LanguageEntry SystemDefault(string displayName)
{
return new LanguageEntry(SYS_LANG_CODE, displayName, true);
}
private LanguageEntry(string code, string name, bool isSystem)
{
this.Code = code;
this.Name = name;
this.IsSystem = isSystem;
}
/// <summary>
/// Converts a language preference code to a code that is compatible with LocaleManager.Language
/// </summary>
/// <param name="code"></param>
/// <returns>A converted code, possibly null</returns>
public static string PrefCodeToLanguage(string code)
{
return string.IsNullOrEmpty(code) || SYS_LANG_CODE.Equals(code) ? null : code;
}
public override string ToString()
{
return "{" + this.Code + ":" + this.Name + "}";
}
}
public class Util
{
public const String KeyFilename = "fileName";
public const String KeyServerusername = "serverCredUser";
public const String KeyServerpassword = "serverCredPwd";
public const String KeyServercredmode = "serverCredRememberMode";
public static void PutIoConnectionToIntent(IOConnectionInfo ioc, Intent i, string prefix = "")
{
i.PutExtra(prefix + KeyFilename, ioc.Path);
i.PutExtra(prefix + KeyServerusername, ioc.UserName);
i.PutExtra(prefix + KeyServerpassword, ioc.Password);
i.PutExtra(prefix + KeyServercredmode, (int)ioc.CredSaveMode);
}
public static void SetIoConnectionFromIntent(IOConnectionInfo ioc, Intent i, string prefix = "")
{
ioc.Path = i.GetStringExtra(prefix + KeyFilename);
ioc.UserName = i.GetStringExtra(prefix + KeyServerusername) ?? "";
ioc.Password = i.GetStringExtra(prefix + KeyServerpassword) ?? "";
ioc.CredSaveMode = (IOCredSaveMode)i.GetIntExtra(prefix + KeyServercredmode, (int)IOCredSaveMode.NoSave);
}
public static string GetErrorMessage(Exception e)
{
return ExceptionUtil.GetErrorMessage(e);
}
public static Bitmap DrawableToBitmap(Drawable drawable)
{
Bitmap bitmap = null;
if (drawable is BitmapDrawable)
{
BitmapDrawable bitmapDrawable = (BitmapDrawable)drawable;
if (bitmapDrawable.Bitmap != null)
{
return bitmapDrawable.Bitmap;
}
}
if (drawable.IntrinsicWidth <= 0 || drawable.IntrinsicHeight <= 0)
{
bitmap = Bitmap.CreateBitmap(1, 1,
Bitmap.Config.Argb8888); // Single color bitmap will be created of 1x1 pixel
}
else
{
bitmap = Bitmap.CreateBitmap(drawable.IntrinsicWidth, drawable.IntrinsicHeight, Bitmap.Config.Argb8888);
}
Canvas canvas = new Canvas(bitmap);
drawable.SetBounds(0, 0, canvas.Width, canvas.Height);
drawable.Draw(canvas);
return bitmap;
}
public static Bitmap ChangeImageColor(Bitmap sourceBitmap, Color color)
{
Bitmap temp = Bitmap.CreateBitmap(sourceBitmap, 0, 0,
sourceBitmap.Width, sourceBitmap.Height);
Bitmap resultBitmap = temp.Copy(Bitmap.Config.Argb8888, true);
Paint p = new Paint();
ColorFilter filter = new LightingColorFilter(color.ToArgb(), 0);
p.SetColorFilter(filter);
Canvas canvas = new Canvas(resultBitmap);
canvas.DrawBitmap(resultBitmap, 0, 0, p);
return resultBitmap;
}
public static float convertDpToPixel(float dp, Context context)
{
Resources resources = context.Resources;
DisplayMetrics metrics = resources.DisplayMetrics;
float px = dp * metrics.Density;
return px;
}
public static String GetClipboard(Context context)
{
Android.Content.ClipboardManager clipboardManager =
(ClipboardManager)context.GetSystemService(Context.ClipboardService);
var clip = clipboardManager.PrimaryClip;
if (clip != null && clip.ItemCount > 0)
{
return clip.GetItemAt(0).CoerceToText(context);
}
return "";
}
public static void CopyToClipboard(Context context, String text, bool isProtected)
{
Android.Content.ClipboardManager clipboardManager =
(ClipboardManager)context.GetSystemService(Context.ClipboardService);
ClipData clipData = Android.Content.ClipData.NewPlainText("KP2A", text);
if (isProtected)
{
//ClipDescription.Extras is only available since 24
if ((int)Build.VERSION.SdkInt >= 24)
{
var extras = clipData.Description.Extras ?? new Android.OS.PersistableBundle();
extras.PutBoolean("android.content.extra.IS_SENSITIVE", true);
clipData.Description.Extras = extras;
}
}
clipboardManager.PrimaryClip = clipData;
if (text == "")
{
//on some devices, adding empty text does not seem to work. Try again with some garbage.
clipData = Android.Content.ClipData.NewPlainText("KP2A", "***");
clipboardManager.PrimaryClip = clipData;
//seems to work better on some devices:
try
{
clipboardManager.Text = text;
}
catch (Exception exception)
{
Kp2aLog.LogUnexpectedError(exception);
}
}
}
private static readonly Regex ARC_DEVICE_PATTERN = new Regex(".+_cheets|cheets_.+");
public static bool IsChromeOS(Context context)
{
return
context.PackageManager.HasSystemFeature(
"org.chromium.arc.device_management") // https://stackoverflow.com/a/39843396/292233
|| (Build.Device != null && ARC_DEVICE_PATTERN.IsMatch(Build.Device))
;
}
public static void GotoUrl(Context context, String url)
{
if (!string.IsNullOrEmpty(url))
{
if (url.StartsWith("androidapp://"))
{
string packageName = url.Substring("androidapp://".Length);
Intent startKp2aIntent = context.PackageManager.GetLaunchIntentForPackage(packageName);
if (startKp2aIntent != null)
{
startKp2aIntent.AddCategory(Intent.CategoryLauncher);
startKp2aIntent.AddFlags(ActivityFlags.NewTask);
context.StartActivity(startKp2aIntent);
}
}
else
{
Uri uri = Uri.Parse(url);
context.StartActivity(new Intent(
url.StartsWith("tel:") ? Intent.ActionDial : Intent.ActionView,
uri));
}
}
}
public static void GotoUrl(Context context, int resId)
{
GotoUrl(context, context.GetString(resId));
}
public static void GotoMarket(Context context)
{
GotoUrl(context, context.GetString(Resource.String.MarketURL) + context.PackageName);
}
public static bool GotoDonateUrl(Context context)
{
string donateUrl = context.GetString(Resource.String.donate_url,
new Java.Lang.Object[]
{
context.Resources.Configuration.Locale.Language,
context.PackageName
});
try
{
GotoUrl(context, donateUrl);
return true;
}
catch (ActivityNotFoundException)
{
App.Kp2a.ShowMessage(context, Resource.String.error_failed_to_launch_link, MessageSeverity.Error);
return false;
}
}
public static String GetEditText(Activity act, int resId)
{
TextView te = (TextView)act.FindViewById(resId);
System.Diagnostics.Debug.Assert(te != null);
if (te != null)
{
return te.Text;
}
else
{
return "";
}
}
public static void SetEditText(Activity act, int resId, String str)
{
TextView te = (TextView)act.FindViewById(resId);
System.Diagnostics.Debug.Assert(te != null);
if (te != null)
{
te.Text = str;
}
}
/**
* Indicates whether the specified action can be used as an intent. This
* method queries the package manager for installed packages that can
* respond to an intent with the specified action. If no suitable package is
* found, this method returns false.
*
* @param context The application's environment.
* @param action The Intent action to check for availability.
*
* @return True if an Intent with the specified action can be sent and
* responded to, false otherwise.
*/
static bool IsIntentAvailable(Context context, String action, String type, List<String> categories)
{
PackageManager packageManager = context.PackageManager;
Intent intent = new Intent(action);
if (type != null)
intent.SetType(type);
if (categories != null)
categories.ForEach(c => intent.AddCategory(c));
IList<ResolveInfo> list =
packageManager.QueryIntentActivities(intent,
PackageInfoFlags.MatchDefaultOnly);
foreach (ResolveInfo i in list)
Kp2aLog.Log(i.ActivityInfo.ApplicationInfo.PackageName);
return list.Count > 0;
}
/// <summary>
/// Opens a browse dialog for selecting a file.
/// </summary>
/// <param name="activity">context activity</param>
/// <param name="requestCodeBrowse">requestCode for onActivityResult</param>
/// <param name="forSaving">if true, the file location is meant for saving</param>
/// <param name="tryGetPermanentAccess">if true, the caller prefers a location that can be used permanently
/// This means that ActionOpenDocument should be used instead of ActionGetContent (for not saving), as ActionGetContent
/// is more for one-time access, but therefore allows possibly more available sources.</param>
public static void ShowBrowseDialog(Activity activity, int requestCodeBrowse, bool forSaving,
bool tryGetPermanentAccess)
{
//even though GetContent is not well supported (since Android 7, see https://commonsware.com/Android/previews/appendix-b-android-70)
//we still offer it.
var loadAction = (tryGetPermanentAccess && IsKitKatOrLater)
? Intent.ActionOpenDocument
: Intent.ActionGetContent;
if ((!forSaving) &&
(IsIntentAvailable(activity, loadAction, "*/*", new List<string> { Intent.CategoryOpenable })))
{
Intent i = new Intent(loadAction);
i.SetType("*/*");
i.AddCategory(Intent.CategoryOpenable);
activity.StartActivityForResult(i, requestCodeBrowse);
}
else
{
if ((forSaving) && (IsKitKatOrLater))
{
Intent i = new Intent(Intent.ActionCreateDocument);
i.SetType("*/*");
i.AddCategory(Intent.CategoryOpenable);
activity.StartActivityForResult(i, requestCodeBrowse);
}
else
{
string defaultPath = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath;
ShowInternalLocalFileChooser(activity, requestCodeBrowse, forSaving, defaultPath);
}
}
}
public static bool IsKitKatOrLater
{
get { return (int)Build.VERSION.SdkInt >= 19; }
}
public static PendingIntentFlags AddMutabilityFlag(PendingIntentFlags flags, PendingIntentFlags mutability)
{
if ((int)Build.VERSION.SdkInt >= 31)
return flags | mutability;
else return flags;
}
private static void ShowInternalLocalFileChooser(Activity act, int requestCodeBrowse, bool forSaving,
string defaultPath)
{
#if !EXCLUDE_FILECHOOSER
string fileProviderAuthority = act.PackageName + ".android-filechooser.localfile";
Intent i = Keepass2android.Kp2afilechooser.Kp2aFileChooserBridge.GetLaunchFileChooserIntent(act,
fileProviderAuthority,
defaultPath);
if (forSaving)
i.PutExtra("group.pals.android.lib.ui.filechooser.FileChooserActivity.save_dialog", true);
act.StartActivityForResult(i, requestCodeBrowse);
#else
App.Kp2a.ShowMessage(act, "File Chooser excluded!", MessageSeverity.Error);
#endif
}
/// <summary>
/// Tries to extract the filename from the intent. Returns that filename or null if no success
/// (e.g. on content-URIs in Android KitKat+).
/// Guarantees that the file exists.
/// </summary>
public static string IntentToFilename(Intent data, Context ctx)
{
string s = GetFilenameFromInternalFileChooser(data, ctx);
if (!String.IsNullOrEmpty(s))
return s;
try
{
Uri uri = data.Data;
if ((uri != null) && (uri.Scheme == "content"))
{
String[] col = new String[] { MediaStore.MediaColumns.Data };
ICursor c1 = ctx.ContentResolver.Query(uri, col, null, null, null);
c1.MoveToFirst();
var possibleFilename = c1.GetString(0);
if (File.Exists(possibleFilename))
return possibleFilename;
}
}
catch (Exception e)
{
Kp2aLog.LogUnexpectedError(e);
}
String filename = data.Data.Path;
if ((String.IsNullOrEmpty(filename) || (!File.Exists(filename))))
filename = data.DataString;
if (File.Exists(filename))
return filename;
//found no valid file
return null;
}
public static string GetFilenameFromInternalFileChooser(Intent data, Context ctx)
{
#if !EXCLUDE_FILECHOOSER
string EXTRA_RESULTS = "group.pals.android.lib.ui.filechooser.FileChooserActivity.results";
if (data.HasExtra(EXTRA_RESULTS))
{
IList uris = data.GetParcelableArrayListExtra(EXTRA_RESULTS);
Uri uri = (Uri)uris[0];
{
return Group.Pals.Android.Lib.UI.Filechooser.Providers.BaseFileProviderUtils.GetRealUri(ctx, uri)
.ToString();
}
}
#endif
return null;
}
public static bool HasActionBar(Activity activity)
{
//Actionbar is available since 11, but the layout has its own "pseudo actionbar" until 13
return ((int)Android.OS.Build.VERSION.SdkInt >= 14) && (activity.ActionBar != null);
}
public delegate bool FileSelectedHandler(string filename);
public class DismissListener : Java.Lang.Object, IDialogInterfaceOnDismissListener
{
private readonly Action _onDismiss;
public DismissListener(Action onDismiss)
{
_onDismiss = onDismiss;
}
public void OnDismiss(IDialogInterface dialog)
{
_onDismiss();
}
}
class CancelListener : Java.Lang.Object, IDialogInterfaceOnCancelListener
{
private readonly Action _onCancel;
public CancelListener(Action onCancel)
{
_onCancel = onCancel;
}
public void OnCancel(IDialogInterface dialog)
{
_onCancel();
}
}
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)
{
MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(activity);
builder.SetView(activity.LayoutInflater.Inflate(Resource.Layout.file_selection_filename, null));
if (onCancel != null)
builder.SetOnCancelListener(new CancelListener(onCancel));
Dialog dialog = builder.Create();
dialog.Show();
Button openButton = (Button)dialog.FindViewById(Resource.Id.open);
Button createButton = (Button)dialog.FindViewById(Resource.Id.create);
TextView enterFilenameDetails = (TextView)dialog.FindViewById(Resource.Id.label_open_by_filename_details);
openButton.Visibility = onOpen != null ? ViewStates.Visible : ViewStates.Gone;
createButton.Visibility = onCreate != null ? ViewStates.Visible : ViewStates.Gone;
// Set the initial value of the filename
EditText editFilename = (EditText)dialog.FindViewById(Resource.Id.file_filename);
editFilename.Text = defaultFilename;
enterFilenameDetails.Text = detailsText;
enterFilenameDetails.Visibility = enterFilenameDetails.Text == "" ? ViewStates.Gone : ViewStates.Visible;
// Open button
if (onOpen != null)
openButton.Click += (sender, args) =>
{
String fileName = ((EditText)dialog.FindViewById(Resource.Id.file_filename)).Text;
if (onOpen(fileName, dialog))
dialog.Dismiss();
};
// Create button
if (onCreate != null)
createButton.Click += (sender, args) =>
{
String fileName = ((EditText)dialog.FindViewById(Resource.Id.file_filename)).Text;
if (onCreate(fileName, dialog))
dialog.Dismiss();
};
Button cancelButton = (Button)dialog.FindViewById(Resource.Id.fnv_cancel);
cancelButton.Click += delegate
{
dialog.Dismiss();
if (onCancel != null)
onCancel();
};
ImageButton browseButton = (ImageButton)dialog.FindViewById(Resource.Id.browse_button);
if (!showBrowseButton)
{
browseButton.Visibility = ViewStates.Invisible;
}
browseButton.Click += (sender, evt) =>
{
string filename = ((EditText)dialog.FindViewById(Resource.Id.file_filename)).Text;
Util.ShowBrowseDialog(activity, requestCodeBrowse,
onCreate != null, /*TODO should we prefer ActionOpenDocument here?*/ false);
};
}
public static void QueryCredentials(IOConnectionInfo ioc, Action<IOConnectionInfo> afterQueryCredentials,
Activity activity)
{
//Build dialog to query credentials:
MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(activity);
builder.SetTitle(activity.GetString(Resource.String.credentials_dialog_title));
builder.SetPositiveButton(activity.GetString(Android.Resource.String.Ok), (dlgSender, dlgEvt) =>
{
Dialog dlg = (Dialog)dlgSender;
string username = ((EditText)dlg.FindViewById(Resource.Id.cred_username)).Text;
string password = ((EditText)dlg.FindViewById(Resource.Id.cred_password)).Text;
int credentialRememberMode =
((Spinner)dlg.FindViewById(Resource.Id.cred_remember_mode)).SelectedItemPosition;
ioc.UserName = username;
ioc.Password = password;
ioc.CredSaveMode = (IOCredSaveMode)credentialRememberMode;
afterQueryCredentials(ioc);
});
builder.SetView(activity.LayoutInflater.Inflate(Resource.Layout.url_credentials, null));
builder.SetNeutralButton(activity.GetString(Android.Resource.String.Cancel),
(dlgSender, dlgEvt) => { });
Dialog dialog = builder.Create();
dialog.Show();
((EditText)dialog.FindViewById(Resource.Id.cred_username)).Text = ioc.UserName;
((EditText)dialog.FindViewById(Resource.Id.cred_password)).Text = ioc.Password;
((Spinner)dialog.FindViewById(Resource.Id.cred_remember_mode)).SetSelection((int)ioc.CredSaveMode);
}
public static void FinishAndForward(Activity activity, Intent i)
{
i.SetFlags(ActivityFlags.ForwardResult);
activity.StartActivity(i);
activity.Finish();
}
public static void PrepareDonateOptionMenu(IMenu menu, Context ctx)
{
var donateItem = menu.FindItem(Resource.Id.menu_donate);
if (donateItem != null)
{
donateItem.SetVisible(
!PreferenceManager.GetDefaultSharedPreferences(ctx)
.GetBoolean(ctx.GetString(Resource.String.NoDonateOption_key), false)
);
}
}
public static bool GetCloseDatabaseAfterFailedBiometricQuickUnlock(Context ctx)
{
return (PreferenceManager.GetDefaultSharedPreferences(ctx).GetBoolean(
ctx.GetString(Resource.String.CloseDatabaseAfterFailedBiometricQuickUnlock_key), true));
}
public static void MoveBottomBarButtons(int btn1Id, int btn2Id, int bottomBarId, Activity context)
{
var btn1 = context.FindViewById<Button>(btn1Id);
var btn2 = context.FindViewById<Button>(btn2Id);
var rl = context.FindViewById<RelativeLayout>(bottomBarId);
rl.ViewTreeObserver.GlobalLayout += (sender, args) =>
{
if (btn1.Width + btn2.Width > rl.Width)
{
btn2.SetPadding(btn2.PaddingLeft, (int)Util.convertDpToPixel(40, context), btn2.PaddingRight,
btn2.PaddingBottom);
}
};
}
public static MemoryStream StreamToMemoryStream(Stream stream)
{
var memoryStream = stream as MemoryStream;
if (memoryStream == null)
{
// Read the stream into memory
int capacity = 4096; // Default initial capacity, if stream can't report it.
if (stream.CanSeek)
{
capacity = (int)stream.Length;
}
memoryStream = new MemoryStream(capacity);
stream.CopyTo(memoryStream);
stream.Close();
memoryStream.Seek(0, SeekOrigin.Begin);
}
return memoryStream;
}
public static Bitmap MakeLargeIcon(Bitmap unscaled, Context context)
{
int height =
(int)(0.9 * context.Resources.GetDimension(Android.Resource.Dimension.NotificationLargeIconHeight));
int width = (int)(0.9 *
context.Resources.GetDimension(Android.Resource.Dimension.NotificationLargeIconWidth));
return Bitmap.CreateScaledBitmap(unscaled, width, height, true);
}
public static string GetProtocolId(IOConnectionInfo ioc)
{
string displayPath = App.Kp2a.GetFileStorage(ioc).GetDisplayName(ioc);
int protocolSeparatorPos = displayPath.IndexOf("://", StringComparison.Ordinal);
string protocolId = protocolSeparatorPos < 0 ? "file" : displayPath.Substring(0, protocolSeparatorPos);
return protocolId;
}
public static void MakeSecureDisplay(Activity context)
{
if (SecureDisplayConfigured(context) && !PreferenceManager.GetDefaultSharedPreferences(context)
.GetBoolean("no_secure_display_check", false))
{
var hasUnsecureDisplay = HasUnsecureDisplay(context);
if (hasUnsecureDisplay)
{
Kp2aLog.Log("Display is not secure");
var intent = new Intent(context, typeof(NoSecureDisplayActivity));
intent.AddFlags(ActivityFlags.SingleTop | ActivityFlags.ClearTop);
context.StartActivityForResult(intent, 9999);
}
Kp2aLog.Log("Setting FLAG_SECURE.");
context.Window.SetFlags(WindowManagerFlags.Secure, WindowManagerFlags.Secure);
}
else Kp2aLog.Log("Secure display disabled by user preference.");
}
public static bool SecureDisplayConfigured(Activity context)
{
return PreferenceManager.GetDefaultSharedPreferences(context).GetBoolean(
context.GetString(Resource.String.ViewDatabaseSecure_key), true);
}
public static bool HasUnsecureDisplay(Activity context)
{
bool hasUnsecureDisplay = false;
if ((int)Build.VERSION.SdkInt >= 17)
{
foreach (var display in ((DisplayManager)context.GetSystemService(Context.DisplayService))
.GetDisplays())
{
if ((display.Flags & DisplayFlags.Secure) == 0)
{
hasUnsecureDisplay = true;
}
}
}
return hasUnsecureDisplay;
}
public static void SetNoPersonalizedLearning(EditText editText)
{
if (editText == null)
return;
if ((int)Build.VERSION.SdkInt >= 26)
editText.ImeOptions = (ImeAction)EditorInfoCompat.ImeFlagNoPersonalizedLearning;
;
}
public static void SetNoPersonalizedLearning(View view)
{
if (view is ViewGroup vg)
{
for (int i = 0; i < vg.ChildCount; i++)
{
SetNoPersonalizedLearning(vg.GetChildAt(i));
}
}
if (view is EditText editText)
{
SetNoPersonalizedLearning(editText);
}
}
public static void SetNextFreeUrlField(PwEntry entry, string url)
{
string prefix = url.StartsWith(KeePass.AndroidAppScheme) ? "AndroidApp" : "KP2A_URL_";
int c = 1;
while (entry.Strings.Get(prefix + c) != null)
{
c++;
}
entry.Strings.Set(prefix + c, new ProtectedString(false, url));
}
}
}