* added option to ignore duplicate uuids

* fixed issue with clearing entered passwords when leaving PasswordActivity (passwords were cleared when opening FS-Setup-Activity or NfcOtpActivity as well)

src/Kp2aBusinessLogic/IKp2aApp.cs

@@ -100,6 +100,6 @@ namespace keepass2android
 
 		RemoteCertificateValidationCallback CertificateValidationCallback { get; }
 
-
+		bool CheckForDuplicateUuids { get; }
 	}
 }

src/Kp2aBusinessLogic/UiStringKey.cs

@@ -55,6 +55,7 @@ namespace keepass2android
 		FileIsReadOnly,
 		FileIsReadOnlyOnKitkat,
 		CopyFileRequiredForEditing,
-		DuplicateUuidsError
+		DuplicateUuidsError,
+		DuplicateUuidsErrorAdditional
     }
 }

src/Kp2aBusinessLogic/database/Database.cs

@@ -174,8 +174,7 @@ namespace keepass2android
 			
 		}
 
-		
-		private void PopulateGlobals (PwGroup currentGroup)
+		private void PopulateGlobals(PwGroup currentGroup, bool checkForDuplicateUuids )
 		{
 			
 			var childGroups = currentGroup.Groups;
@@ -183,22 +182,34 @@ namespace keepass2android
 
 			foreach (PwEntry e in childEntries) 
 			{
-				if (Entries.ContainsKey(e.Uuid))
+				if (checkForDuplicateUuids)
 				{
-					throw new DuplicateUuidsException();
+					if (Entries.ContainsKey(e.Uuid))
+					{
+						throw new DuplicateUuidsException();
+					}
+					
 				}
 				Entries [e.Uuid] = e;
 			}
 			foreach (PwGroup g in childGroups) 
 			{
-				if (Groups.ContainsKey(g.Uuid))
+				if (checkForDuplicateUuids)
 				{
-					throw new DuplicateUuidsException();
+
+					if (Groups.ContainsKey(g.Uuid))
+					{
+						throw new DuplicateUuidsException();
+					}
 				}
 				Groups[g.Uuid] = g;
 				PopulateGlobals(g);
 			}
 		}
+		private void PopulateGlobals (PwGroup currentGroup)
+		{
+			PopulateGlobals(currentGroup, _app.CheckForDuplicateUuids);
+		}
 		
 		public void Clear() {
 			Groups.Clear();

src/Kp2aBusinessLogic/database/edit/LoadDB.cs

@@ -92,7 +92,7 @@ namespace keepass2android
 			catch (DuplicateUuidsException e)
 			{
 				Kp2aLog.Log("Exception: " + e);
-				Finish(false, _app.GetResourceString(UiStringKey.DuplicateUuidsError));
+				Finish(false, _app.GetResourceString(UiStringKey.DuplicateUuidsError)+" " + _app.GetResourceString(UiStringKey.DuplicateUuidsErrorAdditional));
 				return;
 			}
 			catch (Exception e)

src/keepass2android/PasswordActivity.cs

@@ -139,7 +139,8 @@ namespace keepass2android
 
 		private ActivityDesign _design;
 		private bool _performingLoad;
-		
+		private bool _keepPasswordInOnResume;
+
 
 		public PasswordActivity (IntPtr javaReference, JniHandleOwnership transfer)
 			: base(javaReference, transfer)
@@ -213,7 +214,7 @@ namespace keepass2android
 		protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
 		{
 			base.OnActivityResult(requestCode, resultCode, data);
-
+			_keepPasswordInOnResume = true; 
 			Kp2aLog.Log("PasswordActivity.OnActivityResult "+resultCode+"/"+requestCode);
 
 			AppTask.TryGetFromActivityResult(data, ref AppTask);
@@ -576,6 +577,7 @@ namespace keepass2android
 			else if ((action != null) && (action.Equals(Intents.StartWithOtp)))
 			{
 				if (!GetIocFromOtpIntent(savedInstanceState, i)) return;
+				_keepPasswordInOnResume = true;
 			}
 			else
 			{
@@ -596,6 +598,10 @@ namespace keepass2android
 				{
 					_keyFileOrProvider = GetKeyFile(_ioConnection.Path);
 				}
+				if ((!string.IsNullOrEmpty(_keyFileOrProvider)) || (_password != ""))
+				{
+					_keepPasswordInOnResume = true;
+				}
 			}
 
 			if (App.Kp2a.GetDb().Loaded && App.Kp2a.GetDb().Ioc != null &&
@@ -1199,7 +1205,7 @@ namespace keepass2android
 			if ((intent != null) && (intent.HasExtra(Intents.OtpExtraKey)))
 			{
 				string otp = intent.GetStringExtra(Intents.OtpExtraKey);
-
+				_keepPasswordInOnResume = true;
 				if (_otpInfo == null)
 				{
 					//Entering OTPs not yet initialized:
@@ -1260,6 +1266,12 @@ namespace keepass2android
 				killButton.Visibility = ViewStates.Gone;
 			}
 
+			if (!_keepPasswordInOnResume)
+			{
+				ClearEnteredPassword();
+			}
+			_keepPasswordInOnResume = false;
+
 			MakePasswordMaskedOrVisible();
 
 			UpdateOkButtonState();
@@ -1347,11 +1359,6 @@ namespace keepass2android
 			}
 			
 		}
-		protected override void OnPause()
-		{
-			base.OnPause();
-			ClearEnteredPassword(); //if the activity is left without opening the database, clear the password if entered
-		}
 
 		protected override void OnDestroy()
 		{
@@ -1437,7 +1444,18 @@ namespace keepass2android
 
 					GC.Collect(); // Ensure temporary memory used while loading is collected
 				} 
-				DisplayMessage(_act);
+				if ((Message != null) && (Message.Length > 150)) //show long messages as dialog
+				{
+					new AlertDialog.Builder(_act).SetMessage(Message)
+					                             .SetPositiveButton(Android.Resource.String.Ok,
+					                                                (sender, args) => ((Dialog) sender).Dismiss())
+												.Show();
+				}
+				else
+				{
+					DisplayMessage(_act);	
+				}
+				
 
 				_act._performingLoad = false;
 

src/keepass2android/Resources/values/config.xml

@@ -106,6 +106,7 @@
 	<string name="UseOfflineCache_key">UseOfflineCache</string>
 	<string name="AcceptAllServerCertificates_key">AcceptAllServerCertificates</string>
 	<string name="CheckForFileChangesOnSave_key">CheckForFileChangesOnSave</string>
+	<string name="CheckForDuplicateUuids_key">CheckForDuplicateUuids_key</string>
 
 	<string name="about_prefs_key">about_prefs</string>
 

src/keepass2android/Resources/values/strings.xml

@@ -303,6 +303,9 @@
   <string name="CheckForFileChangesOnSave_title">Check for modifications</string>
   <string name="CheckForFileChangesOnSave_summary">Check whether the file was modified externally before saving changes.</string>
 	
+	<string name="CheckForDuplicateUuids_title">Check for duplicate UUIDs</string>
+  <string name="CheckForDuplicateUuids_summary">Check whether the database file is corrupt by having multiple entries with the same ID. This might cause unexpected behavior.</string>
+	
   <string name="ShowCopyToClipboardNotification_title">Clipboard notifications</string>
   <string name="ShowCopyToClipboardNotification_summary">Make username and password accessible through the notification bar and clipboard. Beware of password sniffers!</string>
 
@@ -387,6 +390,7 @@
 
 	<string name="ErrorOcurred">An error occured:</string>
 	<string name="DuplicateUuidsError">Database is corrupt: Duplicate IDs found. (Did you save with Minikeepass?) Please re-import to a new database with Keepass 2 for PC and select \'Create new IDs\'.</string>
+	<string name="DuplicateUuidsErrorAdditional">You can disable this error message in Settings/Application settings/File handling/Check for duplicate UUIDs. Please note that you might experience unexpected behavior. It is recommended to fix the database.</string>
 
 	<string name="synchronize_database_menu">Synchronize database…</string>
 

src/keepass2android/Resources/xml/preferences.xml

@@ -365,6 +365,13 @@
   android:title="@string/TanExpiresOnUse_title"
   android:summary="@string/TanExpiresOnUse_summary"
   android:defaultValue="@bool/TanExpiresOnUse_default"/>
+			<CheckBoxPreference
+							android:enabled="true"
+							  android:persistent="true"
+							  android:summary="@string/CheckForDuplicateUuids_summary"
+							  android:defaultValue="true"
+							  android:title="@string/CheckForDuplicateUuids_title"
+							  android:key="@string/CheckForDuplicateUuids_key" />
 
 		</PreferenceScreen>
 		<PreferenceScreen

src/keepass2android/app/App.cs

@@ -514,6 +514,15 @@ namespace keepass2android
 
 		}
 
+		public bool CheckForDuplicateUuids
+		{
+			get
+			{
+				var prefs = PreferenceManager.GetDefaultSharedPreferences(Application.Context);
+				return prefs.GetBoolean(Application.Context.GetString(Resource.String.CheckForDuplicateUuids_key), true);
+			}
+		}
+
 
 		enum ValidationMode
 		{