Show a dialog after picking PCloud file storage.

Not seeing any file was confusing to users.

See https://github.com/PhilippC/keepass2android/issues/794
See https://github.com/PhilippC/keepass2android/issues/796

crowdin.yml

@@ -4,3 +4,7 @@ files:
       /src/keepass2android/Resources/values-%two_letters_code%/%original_file_name%
     translate_attributes: '0'
     content_segmentation: '0'
+    languages_mapping:
+      two_letters_code:
+        zh-CN: zh
+        zh-TW: zh-rTW

docs/Keepass2Android-Apk.md

@@ -2,7 +2,7 @@ Keepass2Android's apk is pretty big, e.g. when comparing to Keepassdroid. The ma
 
 Here's a list of what is contained in the Keepass2Android 0.9.1 application package:
 
-{{
+```
 Mono for Android		
 			.net dlls			5.0 MB
 			Runtime				2.5 MB				
@@ -22,4 +22,4 @@ Java/Mono bindings					0.5 MB
 rest							0.3 MB		
 
 TOTAL							13 MB
-}}
+```

docs/README.md

@@ -1,3 +1,6 @@
+<h1 align="center"><img src="/src/keepass2android/Resources/mipmap-xxxhdpi/ic_launcher_online.png" align="center" width="100" alt="Keepass2Android Logo">Keepass2Android</h1>
+
+
 # What is Keepass2Android?
 Keepass2Android is a password manager app. It allows to store and retrieve passwords and other sensitive information in a file called "database". This database is secured with a so-called master password. The master password typically is a strong password and can be complemented with a second factor for additional security.
 The password database file can be synchronized across different devices. This works best using one of the built-in cloud storage options, but can also be performed with third-party apps. Keepass2Android is compatible with Keepass 1 and Keepass 2 on Windows and KeepassX on Linux.

src/JavaFileStorageBindings/JavaFileStorageBindings.csproj

@@ -81,10 +81,6 @@
     </XamarinComponentReference>
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\AdalBindings\AdalBindings.csproj">
-      <Project>{0b109c0e-0514-4340-8779-5bd6a0dde84e}</Project>
-      <Name>AdalBindings</Name>
-    </ProjectReference>
     <ProjectReference Include="..\PCloudBindings\PCloudBindings.csproj" />
   </ItemGroup>
   <ItemGroup>

src/KeePass.sln

@@ -29,8 +29,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SamsungPass", "SamsungPass\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PCloudBindings", "PCloudBindings\PCloudBindings.csproj", "{2DB80C77-D46F-4970-B967-E9FFA9B2AC2E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AdalBindings", "AdalBindings\AdalBindings.csproj", "{0B109C0E-0514-4340-8779-5BD6A0DDE84E}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -317,30 +315,6 @@ Global
 		{2DB80C77-D46F-4970-B967-E9FFA9B2AC2E}.ReleaseNoNet|Win32.Build.0 = ReleaseNoNet|Any CPU
 		{2DB80C77-D46F-4970-B967-E9FFA9B2AC2E}.ReleaseNoNet|x64.ActiveCfg = ReleaseNoNet|Any CPU
 		{2DB80C77-D46F-4970-B967-E9FFA9B2AC2E}.ReleaseNoNet|x64.Build.0 = ReleaseNoNet|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|Mixed Platforms.ActiveCfg = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|Mixed Platforms.Build.0 = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|Win32.ActiveCfg = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|Win32.Build.0 = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Debug|x64.Build.0 = Debug|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|Any CPU.Build.0 = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|Mixed Platforms.Build.0 = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|Win32.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|Win32.Build.0 = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|x64.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.Release|x64.Build.0 = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|Any CPU.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|Any CPU.Build.0 = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|Mixed Platforms.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|Mixed Platforms.Build.0 = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|Win32.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|Win32.Build.0 = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|x64.ActiveCfg = Release|Any CPU
-		{0B109C0E-0514-4340-8779-5BD6A0DDE84E}.ReleaseNoNet|x64.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

src/KeePassLib2Android/Cryptography/KeyDerivation/AesKdf.cs

@@ -21,7 +21,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Text;
-
+using keepass2android;
 #if KeePassUAP
 using Org.BouncyCastle.Crypto;
 using Org.BouncyCastle.Crypto.Engines;
@@ -144,6 +144,7 @@ namespace KeePassLib.Cryptography.KeyDerivation
 		public static bool TransformKeyManaged(byte[] pbNewKey32, byte[] pbKeySeed32,
 			ulong uNumRounds)
 		{
+		    Kp2aLog.Log("Warning: transforming key managed. Expect this to be slow!");
 #if KeePassUAP
 			KeyParameter kp = new KeyParameter(pbKeySeed32);
 			AesEngine aes = new AesEngine();

src/KeePassLib2Android/Keys/IUserKey.cs

@@ -42,5 +42,7 @@ namespace KeePassLib.Keys
         // /// Clear the key and securely erase all security-critical information.
         // /// </summary>
         // void Clear();
+
+        uint GetMinKdbxVersion();
 	}
 }

src/KeePassLib2Android/Keys/KcpCustomKey.cs

@@ -45,6 +45,11 @@ namespace KeePassLib.Keys
 			get { return m_pbKey; }
 		}
 
+	    public uint GetMinKdbxVersion()
+	    {
+	        return 0;
+	    }
+
 	    public KcpCustomKey(string strName, byte[] pbKeyData, bool bPerformHash)
 		{
 			Debug.Assert(strName != null); if(strName == null) throw new ArgumentNullException("strName");

src/KeePassLib2Android/Keys/KcpKeyFile.cs

@@ -64,6 +64,11 @@ namespace KeePassLib.Keys
 			get { return m_pbKeyData; }
 		}
 
+	    public uint GetMinKdbxVersion()
+	    {
+	        return 0;
+	    }
+
 	    public IOConnectionInfo Ioc
 		{
 			get { return m_ioc; }

src/KeePassLib2Android/Keys/KcpPassword.cs

@@ -53,6 +53,11 @@ namespace KeePassLib.Keys
 			get { return m_pbKeyData; }
 		}
 
+	    public uint GetMinKdbxVersion()
+	    {
+	        return 0;
+	    }
+
 	    public KcpPassword(byte[] pbPasswordUtf8)
 		{
 			SetKey(pbPasswordUtf8);

src/KeePassLib2Android/Keys/KcpUserAccount.cs

@@ -60,6 +60,11 @@ namespace KeePassLib.Keys
 			get { return m_pbKeyData; }
 		}
 
+	    public uint GetMinKdbxVersion()
+	    {
+	        return 0;
+	    }
+
 	    /// <summary>
 		/// Construct a user account key.
 		/// </summary>

src/KeePassLib2Android/Kp2aLog.cs

@@ -85,7 +85,7 @@ namespace keepass2android
 		{
 			if (!File.Exists(LogFilename))
 			{
-				File.Create(LogFilename);
+				File.Create(LogFilename).Dispose();
                 _logToFile = true;
 			}
 			
@@ -100,7 +100,6 @@ namespace keepass2android
 				int count = 0;
 				while (File.Exists(LogFilename + "." + count))
 					count++;
-                if (count > 0)
                 File.Move(LogFilename, LogFilename + "." + count);
 				
 			}

src/KeePassLib2Android/Native/NativeLib.cs

@@ -302,7 +302,7 @@ namespace KeePassLib.Native
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.Message);
+				Kp2aLog.Log(e.ToString());
 				return false;
 			}
 

src/KeePassLib2Android/PwDatabase.cs

@@ -485,12 +485,6 @@ namespace KeePassLib
 			set { m_pbHashOfLastIO = value; }
 		}
 
-		public bool UseFileTransactions
-		{
-			get { return m_bUseFileTransactions; }
-			set { m_bUseFileTransactions = value; }
-		}
-
 		public bool UseFileLocks
 		{
 			get { return m_bUseFileLocks; }

src/KeePassLib2Android/Serialization/IOConnectionInfo.cs

@@ -360,5 +360,12 @@ namespace KeePassLib.Serialization
 				m_ioCredProtMode = IOCredProtMode.None;
 			}
 		}
+
+	    public bool IsSameFileAs(IOConnectionInfo other)
+	    {
+	        if (other == null)
+	            return false;
+	        return Path == other.Path && UserName == other.UserName;
+	    }
 	}
 }

src/KeePassLib2Android/Serialization/KdbxFile.cs

@@ -23,6 +23,7 @@ using System.Diagnostics;
 using System.Drawing;
 using System.Globalization;
 using System.IO;
+using System.Linq;
 using System.Security;
 using System.Text;
 using System.Xml;
@@ -126,8 +127,8 @@ namespace KeePassLib.Serialization
 		/// </summary>
 		private const uint FileVersion32 = 0x00040000;
 
-		internal const uint FileVersion32_4 = 0x00040000; // First of 4.x series
-		internal const uint FileVersion32_3 = 0x00030001; // Old format 3.1
+		public const uint FileVersion32_4 = 0x00040000; // First of 4.x series
+		public const uint FileVersion32_3 = 0x00030001; // Old format 3.1
 
 		private const uint FileVersionCriticalMask = 0xFFFF0000;
 
@@ -373,13 +374,16 @@ namespace KeePassLib.Serialization
 			if(m_uForceVersion != 0) return m_uForceVersion;
 
             // See also KeePassKdb2x3.Export (KDBX 3.1 export module)
+		    uint minVersionForKeys = m_pwDatabase.MasterKey.UserKeys.Select(key => key.GetMinKdbxVersion()).Max();
 		    
             AesKdf kdfAes = new AesKdf();
 			if(!kdfAes.Uuid.Equals(m_pwDatabase.KdfParameters.KdfUuid))
-				return FileVersion32;
+				return Math.Max(FileVersion32, minVersionForKeys);
 
 			if(m_pwDatabase.PublicCustomData.Count > 0)
-				return FileVersion32;
+			    return Math.Max(FileVersion32, minVersionForKeys);
+
+
 
             bool bCustomData = false;
 			GroupHandler gh = delegate(PwGroup pg)
@@ -396,9 +400,10 @@ namespace KeePassLib.Serialization
 			};
 			gh(m_pwDatabase.RootGroup);
 			m_pwDatabase.RootGroup.TraverseTree(TraversalMethod.PreOrder, gh, eh);
-			if(bCustomData) return FileVersion32;
+			if(bCustomData)
+			    return Math.Max(FileVersion32, minVersionForKeys);
 
-			return FileVersion32_3; // KDBX 3.1 is sufficient
+            return Math.Max(FileVersion32_3, minVersionForKeys); ; // KDBX 3.1 is sufficient
 		}
 
 		private void ComputeKeys(out byte[] pbCipherKey, int cbCipherKey,

src/Kp2aBusinessLogic/ElementAndDatabaseId.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+using Android.App;
+using Android.Content;
+using Android.OS;
+using Android.Runtime;
+using Android.Views;
+using Android.Widget;
+using keepass2android.Io;
+using KeePassLib;
+using KeePassLib.Interfaces;
+using KeePassLib.Utility;
+
+namespace keepass2android
+{
+    public class ElementAndDatabaseId
+    {
+        private const char Separator = '+';
+
+        public ElementAndDatabaseId(Database db, IStructureItem element)
+        {
+            DatabaseId = db.IocAsHexString();
+            ElementIdString = element.Uuid.ToHexString();
+        }
+
+        public ElementAndDatabaseId(string fullId)
+        {
+            string[] parts = fullId.Split(Separator);
+            if (parts.Length != 2)
+                throw new Exception("Invalid full id " + fullId);
+            DatabaseId = parts[0];
+            ElementIdString = parts[1];
+        }
+
+        public string DatabaseId { get; set; }
+        public string ElementIdString { get; set; }
+        public PwUuid ElementId {  get {  return new PwUuid(MemUtil.HexStringToByteArray(ElementIdString));} }
+
+        public string FullId
+        {
+            get { return DatabaseId + Separator + ElementIdString; }
+        }
+    }
+}

src/Kp2aBusinessLogic/IKp2aApp.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Net.Security;
 using System.Security.Cryptography.X509Certificates;
 using Android.App;
@@ -9,6 +10,7 @@ using KeePassLib;
 using KeePassLib.Keys;
 using KeePassLib.Serialization;
 using keepass2android.Io;
+using KeePassLib.Interfaces;
 #if !NoNet
 using Keepass2android.Javafilestorage;
 #endif 
@@ -34,30 +36,40 @@ namespace keepass2android
 	public interface IKp2aApp : ICertificateValidationHandler
 	{
         /// <summary>
-		/// Locks the currently open database, quicklocking if available (unless false is passed for allowQuickUnlock)
+        /// Locks all currently open databases, quicklocking if available (unless false is passed for allowQuickUnlock)
         /// </summary>
-		void LockDatabase(bool allowQuickUnlock = true);
+        void Lock(bool allowQuickUnlock);
+
 
         /// <summary>
         /// Loads the specified data as the currently open database, as unlocked.
         /// </summary>
-		void LoadDatabase(IOConnectionInfo ioConnectionInfo, MemoryStream memoryStream, CompositeKey compKey,
-		                  ProgressDialogStatusLogger statusLogger, IDatabaseFormat databaseFormat);
+        Database LoadDatabase(IOConnectionInfo ioConnectionInfo, MemoryStream memoryStream, CompositeKey compKey, ProgressDialogStatusLogger statusLogger, IDatabaseFormat databaseFormat, bool makeCurrent);
+
+
+	    HashSet<PwGroup> DirtyGroups { get; }
+
+	    void MarkAllGroupsAsDirty();
 
         /// <summary>
         /// Returns the current database
         /// </summary>
-		Database GetDb();
+	    Database CurrentDb { get; }
+
+	    IEnumerable<Database> OpenDatabases { get; }
+	    void CloseDatabase(Database db);
+
+	    Database FindDatabaseForElement(IStructureItem element);
         
         /// <summary>
         /// Tell the app that the file from ioc was opened with keyfile.
         /// </summary>
-		void StoreOpenedFileAsRecent(IOConnectionInfo ioc, string keyfile, string displayName = "");
+        void StoreOpenedFileAsRecent(IOConnectionInfo ioc, string keyfile, bool updateTimestamp, string displayName = "");
 
 		/// <summary>
 		/// Creates a new database and returns it
 		/// </summary>
-		Database CreateNewDatabase();
+		Database CreateNewDatabase(bool makeCurrent);
 
 		/// <summary>
 		/// Returns the user-displayable string identified by stringKey
@@ -76,7 +88,8 @@ namespace keepass2android
 		                    EventHandler<DialogClickEventArgs> yesHandler,
 		                    EventHandler<DialogClickEventArgs> noHandler,
 		                    EventHandler<DialogClickEventArgs> cancelHandler,
-		                    Context ctx);
+		                    Context ctx,
+                            string messageSuffix = "");
 
 		/// <summary>
 		/// Asks the user the question "messageKey" with the options Yes/No/Cancel, but the yes/no strings can be selected freely, calls the handler corresponding to the answer.
@@ -86,7 +99,8 @@ namespace keepass2android
 		                    EventHandler<DialogClickEventArgs> yesHandler,
 		                    EventHandler<DialogClickEventArgs> noHandler,
 		                    EventHandler<DialogClickEventArgs> cancelHandler,
-		                    Context ctx);
+		                    Context ctx,
+		                    string messageSuffix = "");
 
 		/// <summary>
 		/// Returns a Handler object which can run tasks on the UI thread
@@ -111,6 +125,10 @@ namespace keepass2android
 		bool CheckForDuplicateUuids { get; }
 #if !NoNet
 		ICertificateErrorHandler CertificateErrorHandler { get; }
+	    
+
+
 #endif
+	    
 	}
 }

src/Kp2aBusinessLogic/Io/AndroidContentStorage.cs

@@ -207,8 +207,7 @@ namespace keepass2android.Io
 
 		public IOConnectionInfo GetParentPath(IOConnectionInfo ioc)
 		{
-			//TODO: required for OTP Aux file retrieval
-			throw new NotImplementedException();
+		    return IoUtil.GetParentPath(ioc);
 		}
 
 		public IOConnectionInfo GetFilePath(IOConnectionInfo folderPath, string filename)

src/Kp2aBusinessLogic/Io/BuiltInFileStorage.cs

@@ -255,6 +255,7 @@ namespace keepass2android.Io
 			if (ioc.IsLocalFile())
 			{
 				bool requiresPermission = !(ioc.Path.StartsWith(activity.Activity.FilesDir.CanonicalPath)
+												|| ioc.Path.StartsWith(IoUtil.GetInternalDirectory(activity.Activity).CanonicalPath)
 				                            || ioc.Path.StartsWith(IoUtil.GetInternalDirectory(activity.Activity).CanonicalPath));
 				
 				var extDirectory = activity.Activity.GetExternalFilesDir(null);

src/Kp2aBusinessLogic/Io/CachingFileStorage.cs

@@ -65,21 +65,27 @@ namespace keepass2android.Io
 		
 		protected readonly OfflineSwitchableFileStorage _cachedStorage;
 		private readonly ICacheSupervisor _cacheSupervisor;
-		private readonly string _streamCacheDir;
+		private readonly string _legacyCacheDir;
+	    private readonly string _cacheDir;
 
-		public CachingFileStorage(IFileStorage cachedStorage, string cacheDir, ICacheSupervisor cacheSupervisor)
+        public CachingFileStorage(IFileStorage cachedStorage, Context cacheDirContext, ICacheSupervisor cacheSupervisor)
 		{
 			_cachedStorage = new OfflineSwitchableFileStorage(cachedStorage);
 			_cacheSupervisor = cacheSupervisor;
-			_streamCacheDir = cacheDir + Java.IO.File.Separator + "OfflineCache" + Java.IO.File.Separator;
-			if (!Directory.Exists(_streamCacheDir))
-				Directory.CreateDirectory(_streamCacheDir);
+			_legacyCacheDir = cacheDirContext.CacheDir.Path + Java.IO.File.Separator + "OfflineCache" + Java.IO.File.Separator;
+			if (!Directory.Exists(_legacyCacheDir))
+				Directory.CreateDirectory(_legacyCacheDir);
+
+		    _cacheDir = IoUtil.GetInternalDirectory(cacheDirContext).Path + Java.IO.File.Separator + "OfflineCache" + Java.IO.File.Separator;
+		    if (!Directory.Exists(_cacheDir))
+		        Directory.CreateDirectory(_cacheDir);
 
         }
 
 		public void ClearCache()
 		{
-			IoUtil.DeleteDir(new Java.IO.File(_streamCacheDir), true);
+			IoUtil.DeleteDir(new Java.IO.File(_legacyCacheDir), true);
+		    IoUtil.DeleteDir(new Java.IO.File(_cacheDir), true);
         }
 
 		public IEnumerable<string> SupportedProtocols { get { return _cachedStorage.SupportedProtocols; } }
@@ -105,7 +111,11 @@ namespace keepass2android.Io
 		{
 			SHA256Managed sha256 = new SHA256Managed();
 			string iocAsHexString = MemUtil.ByteArrayToHexString(sha256.ComputeHash(Encoding.Unicode.GetBytes(ioc.Path.ToCharArray())))+".cache";
-			return _streamCacheDir + iocAsHexString;
+		    if (File.Exists(_legacyCacheDir + iocAsHexString))
+		        return _legacyCacheDir + iocAsHexString;
+
+		    return _cacheDir + iocAsHexString;
+
 		}
 
 		public bool IsCached(IOConnectionInfo ioc)
@@ -168,7 +178,9 @@ namespace keepass2android.Io
 				if (!IsCached(ioc))
 					throw;
 
+#if DEBUG
                 Kp2aLog.Log("couldn't open from remote " + ioc.Path);
+#endif
 				Kp2aLog.Log(ex.ToString());
 
 				_cacheSupervisor.CouldntOpenFromRemote(ioc, ex);

src/Kp2aBusinessLogic/Io/JavaFileStorage.cs

@@ -233,7 +233,6 @@ namespace keepass2android.Io
 
 		public FileDescription GetFileDescription(IOConnectionInfo ioc)
 		{
-			Kp2aLog.Log("GetFileDescription "+ioc.Path);
 			try
 			{
 				return ConvertToFileDescription(Jfs.GetFileEntry(IocToPath(ioc)));
@@ -302,7 +301,9 @@ namespace keepass2android.Io
 
 		public void OnResume(IFileStorageSetupActivity activity)
 		{
+#if DEBUG
 			Kp2aLog.Log("JFS/OnResume Ioc.Path=" +activity.Ioc.Path+". Path="+((IJavaFileStorageFileStorageSetupActivity)activity).Path);
+#endif
 			_jfs.OnResume(((IJavaFileStorageFileStorageSetupActivity) activity));
 		}
 

src/Kp2aBusinessLogic/Kp2aBusinessLogic.csproj

@@ -91,7 +91,7 @@
     <Compile Include="database\CheckDatabaseForChanges.cs" />
     <Compile Include="database\edit\AddTemplateEntries.cs" />
     <Compile Include="database\edit\CopyEntry.cs" />
-    <Compile Include="database\edit\DeleteMultipleItems.cs" />
+    <Compile Include="database\edit\DeleteMultipleItemsFromOneDatabase.cs" />
     <Compile Include="database\edit\EditGroup.cs" />
     <Compile Include="database\edit\MoveElements.cs" />
     <Compile Include="database\KdbDatabaseFormat.cs" />
@@ -103,6 +103,7 @@
     <Compile Include="DataExchange\Formats\KeePassKdb2x.cs" />
     <Compile Include="DataExchange\Formats\KeePassXml2x.cs" />
     <Compile Include="DataExchange\PwExportInfo.cs" />
+    <Compile Include="ElementAndDatabaseId.cs" />
     <Compile Include="Io\AndroidContentStorage.cs" />
     <Compile Include="Io\BuiltInFileStorage.cs" />
     <Compile Include="Io\CachingFileStorage.cs" />
@@ -156,10 +157,6 @@
     <Compile Include="Utils\Spr\SprEngine.PickChars.cs" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\AdalBindings\AdalBindings.csproj">
-      <Project>{0b109c0e-0514-4340-8779-5bd6a0dde84e}</Project>
-      <Name>AdalBindings</Name>
-    </ProjectReference>
     <ProjectReference Include="..\JavaFileStorageBindings\JavaFileStorageBindings.csproj">
       <Project>{48574278-4779-4b3a-a9e4-9cf1bc285d0b}</Project>
       <Name>JavaFileStorageBindings</Name>

src/Kp2aBusinessLogic/ProgressDialogStatusLogger.cs

@@ -52,6 +52,7 @@ namespace keepass2android
 
 		public void UpdateMessage (String message)
 		{
+		    Kp2aLog.Log("status message: " + message);
             _message = message;
 			if ( _app!= null && _progressDialog != null && _handler != null ) {
 				_handler.Post(() => {_progressDialog.SetMessage(message); } );
@@ -60,6 +61,7 @@ namespace keepass2android
 
 		public void UpdateSubMessage(String submessage)
 		{
+		    Kp2aLog.Log("status submessage: " + submessage);
 		    _submessage = submessage;
 			if (_app != null && _progressDialog != null && _handler != null)
 			{

src/Kp2aBusinessLogic/PwGroupEqualityFromIdComparer.cs

@@ -23,7 +23,7 @@ namespace keepass2android
 	/// <summary>
 	/// EqualityComparer implementation to compare PwGroups based on their Id
 	/// </summary>
-	class PwGroupEqualityFromIdComparer: IEqualityComparer<PwGroup>
+	public class PwGroupEqualityFromIdComparer: IEqualityComparer<PwGroup>
 	{
 		#region IEqualityComparer implementation			
 		public bool Equals (PwGroup x, PwGroup y)

src/Kp2aBusinessLogic/SearchDbHelper.cs

@@ -103,7 +103,7 @@ namespace keepass2android
 			PwGroup pgResults = new PwGroup(true, true, strGroupName, PwIcon.EMailSearch) {IsVirtual = true};
 			if (String.IsNullOrWhiteSpace(host))
 				return pgResults;
-			foreach (PwEntry entry in database.Entries.Values)
+			foreach (PwEntry entry in database.EntriesById.Values)
 			{
 				string otherUrl = entry.Strings.ReadSafe(PwDefs.UrlField);
 				otherUrl = SprEngine.Compile(otherUrl, new SprContext(entry, database.KpDatabase, SprCompileFlags.References));

src/Kp2aBusinessLogic/UiStringKey.cs

@@ -86,6 +86,8 @@ namespace keepass2android
 		ReadOnlyReason_PreKitKat,
 		ReadOnlyReason_ReadOnlyFlag,
 		ReadOnlyReason_ReadOnlyKitKat,
-        ReadOnlyReason_LocalBackup
+        ReadOnlyReason_LocalBackup,
+        Ok,
+        cancel
     }
 }

src/Kp2aBusinessLogic/database/CheckDatabaseForChanges.cs

@@ -29,7 +29,7 @@ namespace keepass2android
 		{
 			try
 			{
-				IOConnectionInfo ioc = _app.GetDb().Ioc;
+				IOConnectionInfo ioc = _app.CurrentDb.Ioc;
 				IFileStorage fileStorage = _app.GetFileStorage(ioc);
 				if (fileStorage is CachingFileStorage)
 				{
@@ -49,7 +49,7 @@ namespace keepass2android
 					hashingRemoteStream.CopyTo(remoteData);
 					hashingRemoteStream.Close();
 					
-					if (!MemUtil.ArraysEqual(_app.GetDb().KpDatabase.HashOfFileOnDisk, hashingRemoteStream.Hash))
+					if (!MemUtil.ArraysEqual(_app.CurrentDb.KpDatabase.HashOfFileOnDisk, hashingRemoteStream.Hash))
 					{
 						_app.TriggerReload(_context);
 						Finish(true);

src/Kp2aBusinessLogic/database/Database.cs

@@ -26,6 +26,7 @@ using KeePassLib;
 using KeePassLib.Keys;
 using KeePassLib.Serialization;
 using keepass2android.Io;
+using KeePassLib.Interfaces;
 using KeePassLib.Utility;
 using Exception = System.Exception;
 using String = System.String;
@@ -33,26 +34,22 @@ using String = System.String;
 namespace keepass2android
 {
 
-	public class Database {
-		
-
-		public Dictionary<PwUuid, PwGroup> Groups = new Dictionary<PwUuid, PwGroup>(new PwUuidEqualityComparer());
-		public Dictionary<PwUuid, PwEntry> Entries = new Dictionary<PwUuid, PwEntry>(new PwUuidEqualityComparer());
-		public HashSet<PwGroup> Dirty = new HashSet<PwGroup>(new PwGroupEqualityFromIdComparer());
+	public class Database
+	{
+	    public HashSet<IStructureItem> Elements = new HashSet<IStructureItem>();
+		public Dictionary<PwUuid, PwGroup> GroupsById = new Dictionary<PwUuid, PwGroup>(new PwUuidEqualityComparer());
+		public Dictionary<PwUuid, PwEntry> EntriesById = new Dictionary<PwUuid, PwEntry>(new PwUuidEqualityComparer());
 		public PwGroup Root;
 		public PwDatabase KpDatabase;
 		public IOConnectionInfo Ioc 
 		{
 			get
 			{
-				return KpDatabase == null ? null : KpDatabase.IOConnectionInfo;
-			}
-		}
                 
-		/// <summary>
-		/// Information about the last opened entry. Includes the entry but also transformed fields.
-		/// </summary>
-		public PwEntryOutput LastOpenedEntry { get; set; }
+                return KpDatabase?.IOConnectionInfo;
+                
+			}
+		}
 
 		/// <summary>
 		/// if an OTP key was used, this property tells the location of the OTP auxiliary file.
@@ -74,30 +71,13 @@ namespace keepass2android
 			CanWrite = true; //default
         }
 
-		private bool _loaded;
-
-        private bool _reloadRequested;
 	    private IDatabaseFormat _databaseFormat = new KdbxDatabaseFormat(KdbxFormat.Default);
 
-		public bool ReloadRequested
-        {
-            get { return _reloadRequested; }
-            set { _reloadRequested = value; }
-        }
-
-		public bool Loaded {
-			get { return _loaded;}
-			set { _loaded = value; }
-		}
+		public bool ReloadRequested { get; set; }
 
 	    public bool DidOpenFileChange()
 		{
-			if (Loaded == false)
-			{
-				return false;
-			}
 			return _app.GetFileStorage(Ioc).CheckForFileChangeFast(Ioc, LastFileVersion);
-			
 		}
 
 
@@ -112,8 +92,6 @@ namespace keepass2android
 			Stream s = databaseData ?? fileStorage.OpenFileForRead(iocInfo);
 			var fileVersion = _app.GetFileStorage(iocInfo).GetCurrentFileVersionFast(iocInfo);
 			PopulateDatabaseFromStream(pwDatabase, s, iocInfo, compositeKey, status, databaseFormat);
-			try
-			{
 		    LastFileVersion = fileVersion;
 
 		    status.UpdateSubMessage("");
@@ -128,16 +106,6 @@ namespace keepass2android
 		    _databaseFormat = databaseFormat;
 
 		    CanWrite = databaseFormat.CanWrite && !fileStorage.IsReadOnly(iocInfo);
-				Loaded = true;
-			}
-			catch (Exception)
-			{
-				Clear();				
-				throw;
-			}
-			
-
-			
 		}
 
 		/// <summary>
@@ -219,8 +187,7 @@ namespace keepass2android
 
 		public void SaveData()  {
             
-			KpDatabase.UseFileTransactions = _app.GetBooleanPreference(PreferenceKey.UseFileTransactions);
-			using (IWriteTransaction trans = _app.GetFileStorage(Ioc).OpenWriteTransaction(Ioc, KpDatabase.UseFileTransactions))
+			using (IWriteTransaction trans = _app.GetFileStorage(Ioc).OpenWriteTransaction(Ioc, _app.GetBooleanPreference(PreferenceKey.UseFileTransactions)))
 			{
 				DatabaseFormat.Save(KpDatabase, trans.OpenFile());
 				
@@ -239,14 +206,18 @@ namespace keepass2android
 			{
 				if (checkForDuplicateUuids)
 				{
-					if (Entries.ContainsKey(e.Uuid))
+					if (EntriesById.ContainsKey(e.Uuid))
 					{
-						throw new DuplicateUuidsException("Same UUID for entries '"+Entries[e.Uuid].Strings.ReadSafe(PwDefs.TitleField)+"' and '"+e.Strings.ReadSafe(PwDefs.TitleField)+"'.");
+						throw new DuplicateUuidsException("Same UUID for entries '"+EntriesById[e.Uuid].Strings.ReadSafe(PwDefs.TitleField)+"' and '"+e.Strings.ReadSafe(PwDefs.TitleField)+"'.");
 					}
 					
 				}
-				Entries [e.Uuid] = e;
+				EntriesById [e.Uuid] = e;
+			    Elements.Add(e);
 			}
+
+		    GroupsById[currentGroup.Uuid] = currentGroup;
+		    Elements.Add(currentGroup);
 			foreach (PwGroup g in childGroups) 
 			{
 				if (checkForDuplicateUuids)
@@ -258,7 +229,6 @@ namespace keepass2android
 					}
 					 * */
 				}
-				Groups[g.Uuid] = g;
 				PopulateGlobals(g);
 			}
 		}
@@ -267,32 +237,14 @@ namespace keepass2android
 			PopulateGlobals(currentGroup, _app.CheckForDuplicateUuids);
 		}
 
-		public void Clear() {
-			_loaded = false; 
 
-			Groups.Clear();
-			Entries.Clear();
-			Dirty.Clear();
-			DrawableFactory.Clear();
-			
-			Root = null;
-			KpDatabase = null;
-			
-			CanWrite = true;
-			_reloadRequested = false;
-			OtpAuxFileIoc = null;
-		    LastOpenedEntry = null;
+	    public void UpdateGlobals()
+	    {
+	        EntriesById.Clear();
+	        GroupsById.Clear();
+	        Elements.Clear();
+            PopulateGlobals(Root);
 	    }
-		
-		public void MarkAllGroupsAsDirty() {
-			foreach ( PwGroup group in Groups.Values ) {
-				Dirty.Add(group);
-			}
-			
-
-		}
-		
-		
 	}
 
 	[Serializable]

src/Kp2aBusinessLogic/database/KdbDatabaseFormat.cs

@@ -216,9 +216,16 @@ namespace keepass2android
 
 		private DateTime JavaTimeToCSharp(long javatime)
 		{
-			
+		    try
+		    {
 		        var utcTime = new DateTime(1970, 1, 1).AddMilliseconds(javatime);
 		        return TimeZoneInfo.ConvertTimeFromUtc(utcTime, TimeZoneInfo.Local);
+		    }
+		    catch (ArgumentOutOfRangeException)
+		    {
+		        return DateTime.MinValue;
+		    }
+			
 
 		}
 #endif

src/Kp2aBusinessLogic/database/PwEntryOutput.cs

@@ -14,13 +14,13 @@ namespace keepass2android
 	public class PwEntryOutput
 	{
 		private readonly PwEntry _entry;
-		private readonly PwDatabase _db;
+		private readonly Database _db;
 		private readonly ProtectedStringDictionary _outputStrings = new ProtectedStringDictionary();
 
 		/// <summary>
 		/// Constructs the PwEntryOutput by replacing the placeholders
 		/// </summary>
-		public PwEntryOutput(PwEntry entry, PwDatabase db)
+		public PwEntryOutput(PwEntry entry, Database db)
 		{
 			_entry = entry;
 			_db = db;
@@ -34,7 +34,7 @@ namespace keepass2android
 		string GetStringAndReplacePlaceholders(string key)
 		{
 			String value = Entry.Strings.ReadSafe(key);
-			value = SprEngine.Compile(value, new SprContext(Entry, _db, SprCompileFlags.All));
+			value = SprEngine.Compile(value, new SprContext(Entry, _db.KpDatabase, SprCompileFlags.All));
 			return value;
 		}
 

src/Kp2aBusinessLogic/database/SynchronizeCachedDatabase.cs

@@ -26,7 +26,7 @@ namespace keepass2android
 		{
 			try
 			{
-				IOConnectionInfo ioc = _app.GetDb().Ioc;
+				IOConnectionInfo ioc = _app.CurrentDb.Ioc;
 				IFileStorage fileStorage = _app.GetFileStorage(ioc);
 				if (!(fileStorage is CachingFileStorage))
 				{
@@ -70,10 +70,12 @@ namespace keepass2android
 									Finish(true, _app.GetResourceString(UiStringKey.SynchronizedDatabaseSuccessfully));
 								}
 								_saveDb = null;
-							}), false, remoteData);
+							}), _app.CurrentDb, false, remoteData);
 						_saveDb.Run();
 
-						_app.GetDb().MarkAllGroupsAsDirty();
+                        _app.CurrentDb.UpdateGlobals();
+
+						_app.MarkAllGroupsAsDirty();
 					}
 					else
 					{
@@ -103,6 +105,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
+                Kp2aLog.LogUnexpectedError(e);
 				Finish(false, e.Message);
 			}
 			

src/Kp2aBusinessLogic/database/edit/AddEntry.cs

@@ -24,7 +24,7 @@ namespace keepass2android
 	public class AddEntry : RunnableOnFinish {
 		protected Database Db
 		{
-			get { return _app.GetDb(); }
+			get { return _app.CurrentDb; }
 		}
 
 		private readonly IKp2aApp _app;
@@ -37,13 +37,13 @@ namespace keepass2android
 			return new AddEntry(ctx, app, entry, parentGroup, finish);
 		}
 		
-		protected AddEntry(Activity ctx, IKp2aApp app, PwEntry entry, PwGroup parentGroup, OnFinish finish):base(ctx, finish) {
+		public AddEntry(Activity ctx, IKp2aApp app, PwEntry entry, PwGroup parentGroup, OnFinish finish):base(ctx, finish) {
 			_ctx = ctx;
 			_parentGroup = parentGroup;
 			_app = app;
 			_entry = entry;
 			
-			_onFinishToRun = new AfterAdd(ctx, app.GetDb(), entry, OnFinishToRun);
+			_onFinishToRun = new AfterAdd(ctx, app.CurrentDb, entry, app,OnFinishToRun);
 		}
 		
 		
@@ -60,7 +60,7 @@ namespace keepass2android
 			
 			
 			// Commit to disk
-			SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun);
+			SaveDb save = new SaveDb(_ctx, _app, _app.CurrentDb, OnFinishToRun);
 			save.SetStatusLogger(StatusLogger);
 			save.Run();
 		}
@@ -68,11 +68,12 @@ namespace keepass2android
 		private class AfterAdd : OnFinish {
 			private readonly Database _db;
 			private readonly PwEntry _entry;
+		    private readonly IKp2aApp _app;
 
-			public AfterAdd(Activity activity, Database db, PwEntry entry, OnFinish finish):base(activity, finish) {
+		    public AfterAdd(Activity activity, Database db, PwEntry entry, IKp2aApp app, OnFinish finish):base(activity, finish) {
 				_db = db;
 				_entry = entry;
-
+		        _app = app;
 		    }
 			
 
@@ -83,10 +84,11 @@ namespace keepass2android
 					PwGroup parent = _entry.ParentGroup; 
 					
 					// Mark parent group dirty
-					_db.Dirty.Add(parent);
+					_app.DirtyGroups.Add(parent);
 					
 					// Add entry to global
-					_db.Entries[_entry.Uuid] = _entry;
+					_db.EntriesById[_entry.Uuid] = _entry;
+				    _db.Elements.Add(_entry);
 
 				} else
 				{

src/Kp2aBusinessLogic/database/edit/AddGroup.cs

@@ -26,13 +26,16 @@ namespace keepass2android
 	public class AddGroup : RunnableOnFinish {
 		internal Database Db
 		{
-			get { return _app.GetDb(); }
+			get { return _app.CurrentDb; }
 		}
+
+        public IKp2aApp App { get => _app; }
+
         private IKp2aApp _app;
 		private readonly String _name;
 		private readonly int _iconId;
 		private readonly PwUuid _groupCustomIconId;
-		internal PwGroup Group;
+	    public PwGroup Group;
 		internal PwGroup Parent;
 		protected bool DontSave;
 		readonly Activity _ctx;
@@ -67,9 +70,11 @@ namespace keepass2android
 				Group.CustomIconUuid = _groupCustomIconId;
 			}
 			Parent.AddGroup(Group, true);
+		    _app.CurrentDb.GroupsById[Group.Uuid] = Group;
+		    _app.CurrentDb.Elements.Add(Group);
 
             // Commit to disk
-			SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun, DontSave);
+            SaveDb save = new SaveDb(_ctx, _app, _app.CurrentDb, OnFinishToRun, DontSave);
 			save.SetStatusLogger(StatusLogger);
 			save.Run();
 		}
@@ -86,13 +91,15 @@ namespace keepass2android
 				
 				if ( Success ) {
 					// Mark parent group dirty
-					_addGroup.Db.Dirty.Add(_addGroup.Parent);
+					_addGroup.App.DirtyGroups.Add(_addGroup.Parent);
 					
 					// Add group to global list
-					_addGroup.Db.Groups[_addGroup.Group.Uuid] = _addGroup.Group;
+					_addGroup.Db.GroupsById[_addGroup.Group.Uuid] = _addGroup.Group;
+				    _addGroup.Db.Elements.Add(_addGroup.Group);
 				} else {
 					StatusLogger.UpdateMessage(UiStringKey.UndoingChanges);
 					_addGroup.Parent.Groups.Remove(_addGroup.Group);
+
 				}
 				
 				base.Run();

src/Kp2aBusinessLogic/database/edit/AddTemplateEntries.cs

@@ -28,7 +28,7 @@ namespace keepass2android
 {
 	public class AddTemplateEntries : RunnableOnFinish {
 
-		class TemplateEntry
+		public class TemplateEntry
 		{
 			public UiStringKey Title { get; set; }
 			public PwIcon Icon { get; set; }
@@ -47,11 +47,12 @@ namespace keepass2android
 				void AddToEntry(IKp2aApp app, PwEntry entry, int position);
 			}
 
-			internal enum FieldType
+		    public enum FieldType
 			{
 				Inline, ProtectedInline
 			}
-			internal enum SpecialFieldKey
+
+		    public enum SpecialFieldKey
 			{
 				ExpDate, OverrideUrl, Tags
 			}
@@ -125,7 +126,7 @@ namespace keepass2android
 
 		protected Database Db
 		{
-			get { return _app.GetDb(); }
+			get { return _app.CurrentDb; }
 		}
 
 		private readonly IKp2aApp _app;
@@ -140,7 +141,7 @@ namespace keepass2android
 			//_onFinishToRun = new AfterAdd(this, OnFinishToRun);
 		}
 
-		static readonly List<TemplateEntry> TemplateEntries = new List<TemplateEntry>()
+		public static readonly List<TemplateEntry> TemplateEntries = new List<TemplateEntry>()
 			{
 				new TemplateEntry()
 				{
@@ -285,9 +286,20 @@ namespace keepass2android
 				
 			};
 
-		public static bool ContainsAllTemplates(IKp2aApp app)
+		public static bool ContainsAllTemplates(Database db)
 		{
-			return TemplateEntries.All(t => app.GetDb().Entries.ContainsKey(t.Uuid));
+			return TemplateEntries.All(t =>
+			{
+			    string hexId = t.Uuid.ToHexString();
+                
+                return db.EntriesById.Any(kvp => kvp.Key.Equals(t.Uuid) ||
+                    kvp.Value.Strings.ReadSafe(TemplateIdStringKey) == hexId);
+			});
+		}
+
+	    public static string TemplateIdStringKey
+	    {
+	        get { return "KP2A_TemplateId"; }
 	    }
 
 	    public override void Run() {	
@@ -298,10 +310,10 @@ namespace keepass2android
 
 			if (addedEntries.Any())
 			{
-				_app.GetDb().Dirty.Add(templateGroup);
+				_app.DirtyGroups.Add(templateGroup);
 
 				// Commit to disk
-				SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun);
+				SaveDb save = new SaveDb(_ctx, _app, _app.CurrentDb, OnFinishToRun);
 				save.SetStatusLogger(StatusLogger);
 				save.Run();
 			}
@@ -315,26 +327,28 @@ namespace keepass2android
 			}
 
 			PwGroup templateGroup;
-			if (!_app.GetDb().Groups.TryGetValue(_app.GetDb().KpDatabase.EntryTemplatesGroup, out templateGroup))
+			if (!_app.CurrentDb.GroupsById.TryGetValue(_app.CurrentDb.KpDatabase.EntryTemplatesGroup, out templateGroup))
 			{
 				//create template group
 				templateGroup = new PwGroup(true, true, _app.GetResourceString(UiStringKey.TemplateGroupName), PwIcon.Folder);
-				_app.GetDb().KpDatabase.RootGroup.AddGroup(templateGroup, true);
-				_app.GetDb().KpDatabase.EntryTemplatesGroup = templateGroup.Uuid;
-				_app.GetDb().KpDatabase.EntryTemplatesGroupChanged = DateTime.Now;
-				_app.GetDb().Dirty.Add(_app.GetDb().KpDatabase.RootGroup);
-				_app.GetDb().Groups[templateGroup.Uuid] = templateGroup;
+				_app.CurrentDb.KpDatabase.RootGroup.AddGroup(templateGroup, true);
+				_app.CurrentDb.KpDatabase.EntryTemplatesGroup = templateGroup.Uuid;
+				_app.CurrentDb.KpDatabase.EntryTemplatesGroupChanged = DateTime.Now;
+				_app.DirtyGroups.Add(_app.CurrentDb.KpDatabase.RootGroup);
+				_app.CurrentDb.GroupsById[templateGroup.Uuid] = templateGroup;
+			    _app.CurrentDb.Elements.Add(templateGroup);
+
 			}
 			addedEntries = new List<PwEntry>();
 
 			foreach (var template in TemplateEntries)
 			{
-				if (_app.GetDb().Entries.ContainsKey(template.Uuid))
+				if (_app.CurrentDb.EntriesById.ContainsKey(template.Uuid))
 					continue;
 				PwEntry entry = CreateEntry(template);
 				templateGroup.AddEntry(entry, true);
 				addedEntries.Add(entry);
-				_app.GetDb().Entries[entry.Uuid] = entry;
+				_app.CurrentDb.EntriesById[entry.Uuid] = entry;
 			}
 			return templateGroup;
 		}
@@ -375,6 +389,10 @@ namespace keepass2android
 		}
 
 
+	    public static bool IsTemplateId(PwUuid pwUuid)
+	    {
+	        return TemplateEntries.Any(te => te.Uuid.Equals(pwUuid));
+	    }
 	}
 
 }

src/Kp2aBusinessLogic/database/edit/CreateDB.cs

@@ -27,23 +27,22 @@ namespace keepass2android
 {
 	
 	public class CreateDb : RunnableOnFinish {
-		
-		private const ulong DefaultEncryptionRounds = PwDefs.DefaultKeyEncryptionRounds;
-		
 	    private readonly IOConnectionInfo _ioc;
 		private readonly bool _dontSave;
 		private readonly Activity _ctx;
         private readonly IKp2aApp _app;
 		private CompositeKey _key;
+	    private readonly bool _makeCurrent;
 
-		public CreateDb(IKp2aApp app, Activity ctx, IOConnectionInfo ioc, OnFinish finish, bool dontSave): base(ctx, finish) {
+	    public CreateDb(IKp2aApp app, Activity ctx, IOConnectionInfo ioc, OnFinish finish, bool dontSave, bool makeCurrent): base(ctx, finish) {
 			_ctx = ctx;
 			_ioc = ioc;
 			_dontSave = dontSave;
+	        _makeCurrent = makeCurrent;
 	        _app = app;
 		}
 
-		public CreateDb(IKp2aApp app, Activity ctx, IOConnectionInfo ioc, OnFinish finish, bool dontSave, CompositeKey key)
+		public CreateDb(IKp2aApp app, Activity ctx, IOConnectionInfo ioc, OnFinish finish, bool dontSave, CompositeKey key, bool makeCurrent)
 			: base(ctx, finish)
 		{
 			_ctx = ctx;
@@ -51,12 +50,13 @@ namespace keepass2android
 			_dontSave = dontSave;
 			_app = app;
 			_key = key;
+		    _makeCurrent = makeCurrent;
 		}
 		
 
 		public override void Run() {
 			StatusLogger.UpdateMessage(UiStringKey.progress_create);
-			Database db = _app.CreateNewDatabase();
+			Database db = _app.CreateNewDatabase(_makeCurrent);
 
 			db.KpDatabase = new KeePassLib.PwDatabase();
 			
@@ -74,7 +74,6 @@ namespace keepass2android
 			
 			// Set Database state
 			db.Root = db.KpDatabase.RootGroup;
-			db.Loaded = true;
 			db.SearchHelper = new SearchDbHelper(_app);
 
 			// Add a couple default groups
@@ -88,11 +87,13 @@ namespace keepass2android
 			addTemplates.AddTemplates(out addedEntries);
 			
 			// Commit changes
-			SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun, _dontSave);
+			SaveDb save = new SaveDb(_ctx, _app, db, OnFinishToRun, _dontSave);
 			save.SetStatusLogger(StatusLogger);
 			_onFinishToRun = null;
 			save.Run();
 
+		    db.UpdateGlobals();
+
 
 		}
 		

src/Kp2aBusinessLogic/database/edit/DeleteEntry.cs

@@ -31,7 +31,7 @@ namespace keepass2android
 
 	    public DeleteEntry(Activity activiy, IKp2aApp app, PwEntry entry, OnFinish finish):base(activiy, finish, app) {
 			Ctx = activiy;
-			Db = app.GetDb();
+			Db = app.FindDatabaseForElement(entry);
 			_entry = entry;
 			
 		}
@@ -40,7 +40,7 @@ namespace keepass2android
 		{
 			get
 			{
-				return App.GetDb().DatabaseFormat.CanRecycle && CanRecycleGroup(_entry.ParentGroup);
+				return Db.DatabaseFormat.CanRecycle && CanRecycleGroup(_entry.ParentGroup);
 			}
 		}
 

src/Kp2aBusinessLogic/database/edit/DeleteGroup.cs

@@ -47,7 +47,7 @@ namespace keepass2android
         */
         private void SetMembers(Activity activity, IKp2aApp app, PwGroup group, bool dontSave)
         {
-			base.SetMembers(activity, app.GetDb());
+			base.SetMembers(activity, app.FindDatabaseForElement(group));
 
 			_group = group;
 	        DontSave = dontSave;
@@ -58,7 +58,7 @@ namespace keepass2android
 		{
 			get
 			{
-				return App.GetDb().DatabaseFormat.CanRecycle && CanRecycleGroup(_group);
+				return Db.DatabaseFormat.CanRecycle && CanRecycleGroup(_group);
 			}
 		}
 

src/Kp2aBusinessLogic/database/edit/DeleteMultipleItemsFromOneDatabase.cs

@@ -7,12 +7,12 @@ using KeePassLib.Interfaces;
 
 namespace keepass2android
 {
-	public class DeleteMultipleItems : DeleteRunnable
+	public class DeleteMultipleItemsFromOneDatabase : DeleteRunnable
 	{
 		private readonly List<IStructureItem> _elementsToDelete;
 		private readonly bool _canRecycle;
 
-		public DeleteMultipleItems(Activity activity, Database db, List<IStructureItem> elementsToDelete, OnFinish finish, IKp2aApp app)
+		public DeleteMultipleItemsFromOneDatabase(Activity activity, Database db, List<IStructureItem> elementsToDelete, OnFinish finish, IKp2aApp app)
 			: base(activity, finish, app)
 		{
 			_elementsToDelete = elementsToDelete;
@@ -21,12 +21,13 @@ namespace keepass2android
 			//determine once. The property is queried for each delete operation, but might return false
 			//after one entry/group is deleted (and thus in recycle bin and thus can't be recycled anymore)
 			_canRecycle = DetermineCanRecycle();
+		    ShowDatabaseIocInStatus = true;
 		}
 
 		private bool DetermineCanRecycle()
 		{
 			Android.Util.Log.Debug("KP2A", "CanRecycle?");
-			if (!App.GetDb().DatabaseFormat.CanRecycle)
+			if (!Db.DatabaseFormat.CanRecycle)
 			{
 				Android.Util.Log.Debug("KP2A", "CanRecycle? No because of DB format.");
 				return false;

src/Kp2aBusinessLogic/database/edit/DeleteRunnable.cs

@@ -100,7 +100,8 @@ namespace keepass2android
 						};
 
 				Db.KpDatabase.RootGroup.AddGroup(pgRecycleBin, true);
-				Db.Groups[pgRecycleBin.Uuid] = pgRecycleBin;
+				Db.GroupsById[pgRecycleBin.Uuid] = pgRecycleBin;
+			    Db.Elements.Add(pgRecycleBin);
 				Db.KpDatabase.RecycleBinUuid = pgRecycleBin.Uuid;
 
 				bGroupListUpdateRequired = true;
@@ -121,6 +122,8 @@ namespace keepass2android
 
 		public void Start()
 		{
+            string messageSuffix = ShowDatabaseIocInStatus ? "(" + App.GetFileStorage(Db.Ioc).GetDisplayName(Db.Ioc) + ")" : "";
+
             if (CanRecycle)
 			{
 				App.AskYesNoCancel(UiStringKey.AskDeletePermanently_title,
@@ -130,6 +133,7 @@ namespace keepass2android
 					    DeletePermanently = true;
 					    ProgressTask pt = new ProgressTask(App, Ctx, this);
 					    pt.Run();
+
 					},
 				(dlgSender, dlgEvt) =>
 				{
@@ -138,7 +142,7 @@ namespace keepass2android
 				    pt.Run();
 				},
 				(dlgSender, dlgEvt) => { },
-				Ctx);
+				Ctx, messageSuffix);
 
 
 
@@ -154,7 +158,7 @@ namespace keepass2android
 					},
 				null,
 				(dlgSender, dlgEvt) => { },
-				Ctx);
+				Ctx, messageSuffix);
 
 				
 			}
@@ -182,7 +186,8 @@ namespace keepass2android
 					PwDeletedObject pdo = new PwDeletedObject(pe.Uuid, dtNow);
 					pd.DeletedObjects.Add(pdo);
 					touchedGroups.Add(pgParent);
-				    Db.Entries.Remove(pe.Uuid);
+				    Db.EntriesById.Remove(pe.Uuid);
+				    Db.Elements.Remove(pe);
 				}
 				else // Recycle
 				{
@@ -215,30 +220,40 @@ namespace keepass2android
 				if (success)
 				{
 					foreach (var g in touchedGroups)
-						Db.Dirty.Add(g);
+						App.DirtyGroups.Add(g);
 					foreach (var g in permanentlyDeletedGroups)
 					{
                         //remove groups from global lists if present there
-						Db.Dirty.Remove(g);
-						Db.Groups.Remove(g.Uuid);
+					    App.DirtyGroups.Remove(g);
+						Db.GroupsById.Remove(g.Uuid);
+					    Db.Elements.Remove(g);
+
 					}
 
 				}
 				else
 				{
 					// Let's not bother recovering from a failure to save.  It is too much work.
-					App.LockDatabase(false);
+					App.Lock(false);
 				}
 			}, OnFinishToRun);
 
 			// Commit database
-			SaveDb save = new SaveDb(Ctx, App, OnFinishToRun, false);
+			SaveDb save = new SaveDb(Ctx, App, Db, OnFinishToRun, false);
+		    save.ShowDatabaseIocInStatus = ShowDatabaseIocInStatus;
+
             save.SetStatusLogger(StatusLogger);
 			save.Run();
 
 
 		}
 
+	    public bool ShowDatabaseIocInStatus
+	    {
+	        get;
+	        set;
+	    }
+
 	    protected abstract void PerformDelete(List<PwGroup> touchedGroups, List<PwGroup> permanentlyDeletedGroups);
 
 		public abstract UiStringKey StatusMessage { get; }

src/Kp2aBusinessLogic/database/edit/EditGroup.cs

@@ -26,8 +26,11 @@ namespace keepass2android
 	public class EditGroup : RunnableOnFinish {
 		internal Database Db
 		{
-			get { return _app.GetDb(); }
+			get { return _app.FindDatabaseForElement(Group); }
 		}
+
+        public IKp2aApp App { get => _app; }
+
         private IKp2aApp _app;
 		private readonly String _name;
 		private readonly PwIcon _iconId;
@@ -57,7 +60,7 @@ namespace keepass2android
 			Group.Touch(true);
 
 			// Commit to disk
-			SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun);
+			SaveDb save = new SaveDb(_ctx, _app, Db, OnFinishToRun);
 			save.SetStatusLogger(StatusLogger);
 			save.Run();
 		}
@@ -76,10 +79,10 @@ namespace keepass2android
 				
 				if ( Success ) {
 					// Mark parent group dirty
-					_editGroup.Db.Dirty.Add(_editGroup.Group.ParentGroup);
+					_editGroup.App.DirtyGroups.Add(_editGroup.Group.ParentGroup);
 				} else
 				{
-					_editGroup._app.LockDatabase(false);
+					_editGroup._app.Lock(false);
 				}
 				
 				base.Run();

src/Kp2aBusinessLogic/database/edit/LoadDB.cs

@@ -21,6 +21,7 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Android.App;
+using keepass2android.database.edit;
 using KeePassLib;
 using KeePassLib.Keys;
 using KeePassLib.Serialization;
@@ -36,18 +37,23 @@ namespace keepass2android
 		private readonly bool _rememberKeyfile;
 		IDatabaseFormat _format;
 		
-		public LoadDb(Activity activity, IKp2aApp app, IOConnectionInfo ioc, Task<MemoryStream> databaseData, CompositeKey compositeKey, String keyfileOrProvider, OnFinish finish): base(activity, finish)
+		public LoadDb(Activity activity, IKp2aApp app, IOConnectionInfo ioc, Task<MemoryStream> databaseData, CompositeKey compositeKey, String keyfileOrProvider, OnFinish finish, bool updateLastUsageTimestamp, bool makeCurrent): base(activity, finish)
 		{
 			_app = app;
 			_ioc = ioc;
 			_databaseData = databaseData;
 			_compositeKey = compositeKey;
 			_keyfileOrProvider = keyfileOrProvider;
+		    _updateLastUsageTimestamp = updateLastUsageTimestamp;
+		    _makeCurrent = makeCurrent;
 
 
 		    _rememberKeyfile = app.GetBooleanPreference(PreferenceKey.remember_keyfile); 
 		}
 
+	    protected bool success = false;
+	    private bool _updateLastUsageTimestamp;
+	    private readonly bool _makeCurrent;
 
 	    public override void Run()
 		{
@@ -78,6 +84,10 @@ namespace keepass2android
 					//ok, try to load the database. Let's start with Kdbx format and retry later if that is the wrong guess:
 					_format = new KdbxDatabaseFormat(KdbpFile.GetFormatToUse(_ioc));
 					TryLoad(databaseStream);
+
+
+
+				    success = true;
 				}
 				catch (Exception e)
 				{
@@ -89,7 +99,7 @@ namespace keepass2android
 			{
 				Kp2aLog.Log("KeyFileException");
 				Finish(false, /*TODO Localize: use Keepass error text KPRes.KeyFileError (including "or invalid format")*/
-				       _app.GetResourceString(UiStringKey.keyfile_does_not_exist), Exception);
+				       _app.GetResourceString(UiStringKey.keyfile_does_not_exist), false, Exception);
 			}
 			catch (AggregateException e)
 			{
@@ -100,20 +110,20 @@ namespace keepass2android
 					// Override the message shown with the last (hopefully most recent) inner exception
 					Kp2aLog.LogUnexpectedError(innerException);
 				}
-				Finish(false, _app.GetResourceString(UiStringKey.ErrorOcurred) + " " + message, Exception);
+				Finish(false, _app.GetResourceString(UiStringKey.ErrorOcurred) + " " + message, false, Exception);
 				return;
 			}
 			catch (DuplicateUuidsException e)
 			{
 				Kp2aLog.Log(e.ToString());
-				Finish(false, _app.GetResourceString(UiStringKey.DuplicateUuidsError) + " " + e.Message + _app.GetResourceString(UiStringKey.DuplicateUuidsErrorAdditional), Exception);
+				Finish(false, _app.GetResourceString(UiStringKey.DuplicateUuidsError) + " " + e.Message + _app.GetResourceString(UiStringKey.DuplicateUuidsErrorAdditional), false, Exception);
 				return;
 			}
 			catch (Exception e)
 			{
 				if (!(e is InvalidCompositeKeyException))
 					Kp2aLog.LogUnexpectedError(e);
-				Finish(false, _app.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message, Exception);
+				Finish(false, _app.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message, false, Exception);
 				return;
 			}
 			
@@ -125,7 +135,7 @@ namespace keepass2android
 		/// </summary>
 		public Exception Exception { get; set; }
 
-		private void TryLoad(MemoryStream databaseStream)
+		Database TryLoad(MemoryStream databaseStream)
 		{
 			//create a copy of the stream so we can try again if we get an exception which indicates we should change parameters
 			//This is not optimal in terms of (short-time) memory usage but is hard to avoid because the Keepass library closes streams also in case of errors.
@@ -138,19 +148,16 @@ namespace keepass2android
 			//now let's go:
 			try
 			{
-                _app.LoadDatabase(_ioc, workingCopy, _compositeKey, StatusLogger, _format);
+                Database newDb = _app.LoadDatabase(_ioc, workingCopy, _compositeKey, StatusLogger, _format, _makeCurrent);
 				Kp2aLog.Log("LoadDB OK");
 
-			    //make sure the stored access time for the actual file is more recent than that of its backup
-			    Thread.Sleep(10);
-                SaveFileData(_ioc, _keyfileOrProvider);
-
                 Finish(true, _format.SuccessMessage);
+			    return newDb;
 			}
 			catch (OldFormatException)
 			{
 				_format = new KdbDatabaseFormat(_app);
-				TryLoad(databaseStream);
+				return TryLoad(databaseStream);
 			}
 			catch (InvalidCompositeKeyException)
 			{
@@ -162,7 +169,7 @@ namespace keepass2android
 					//retry without password:
 					_compositeKey.RemoveUserKey(passwordKey);
 					//retry:
-					TryLoad(databaseStream);
+					return TryLoad(databaseStream);
 				}
 				else throw;
 			}
@@ -175,7 +182,7 @@ namespace keepass2android
             {
                 keyfileOrProvider = "";
             }
-            _app.StoreOpenedFileAsRecent(ioc, keyfileOrProvider);
+            _app.StoreOpenedFileAsRecent(ioc, keyfileOrProvider, _updateLastUsageTimestamp);
 		}
 		
 		

src/Kp2aBusinessLogic/database/edit/MoveElements.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
 using Android.App;
@@ -50,10 +51,19 @@ namespace keepass2android.database.edit
 
             }
 
+		    HashSet<Database> removeDatabases = new HashSet<Database>();
+            Database addDatabase = _app.FindDatabaseForElement(_targetGroup);
+		    if (addDatabase == null)
+		    {
+		        Finish(false, "Did not find target database. Did you lock it?");
+		        return;
+		    }
+
 		    foreach (var elementToMove in _elementsToMove)
 		    {
 
-                _app.GetDb().Dirty.Add(elementToMove.ParentGroup);
+                _app.DirtyGroups.Add(elementToMove.ParentGroup);
+                
 
                 PwGroup pgParent = elementToMove.ParentGroup;
                 if (pgParent != _targetGroup)
@@ -63,8 +73,14 @@ namespace keepass2android.database.edit
                         PwEntry entry = elementToMove as PwEntry;
                         if (entry != null)
                         {
+                            var dbRem = _app.FindDatabaseForElement(entry);
+                            removeDatabases.Add(dbRem);
+                            dbRem.EntriesById.Remove(entry.Uuid);
+                            dbRem.Elements.Remove(entry);
                             pgParent.Entries.Remove(entry);
                             _targetGroup.AddEntry(entry, true, true);
+                            addDatabase.EntriesById.Add(entry.Uuid, entry);
+                            addDatabase.Elements.Add(entry);
                         }
                         else
                         {
@@ -74,26 +90,59 @@ namespace keepass2android.database.edit
                                 Finish(false, _app.GetResourceString(UiStringKey.CannotMoveGroupHere));
                                 return;
                             }
+
+                            var dbRem = _app.FindDatabaseForElement(@group);
+                            if (dbRem == null)
+                            {
+                                Finish(false, "Did not find source database. Did you lock it?");
+                                return;
+                            }
+
+                            dbRem.GroupsById.Remove(group.Uuid);
+                            dbRem.Elements.Remove(group);
+                            removeDatabases.Add(dbRem);
                             pgParent.Groups.Remove(group);
                             _targetGroup.AddGroup(group, true, true);
-                        }
+                            addDatabase.GroupsById.Add(group.Uuid, group);
+                            addDatabase.Elements.Add(group);
                         }
                     }
 
                 }
 
+		    }
 
-			_onFinishToRun = new ActionOnFinish(ActiveActivity, (success, message, activity) =>
+		    
+            
+		    
+		    //first save the database where we added the elements
+            var allDatabasesToSave = new List<Database> {addDatabase};
+            //then all databases where we removed elements:
+		    removeDatabases.RemoveWhere(db => db == addDatabase);
+            allDatabasesToSave.AddRange(removeDatabases);
+
+		    int indexToSave = 0;
+		    bool allSavesSuccess = true;
+		    void ContinueSave(bool success, string message, Activity activeActivity)
 		    {
-				if (!success)
-				{	// Let's not bother recovering from a failure.
-					_app.LockDatabase(false);
+		        allSavesSuccess &= success;
+                indexToSave++;
+		        if (indexToSave == allDatabasesToSave.Count)
+		        {
+		            OnFinishToRun.SetResult(allSavesSuccess);
+		            OnFinishToRun.Run();
+		            return;
+		        }
+		        SaveDb saveDb = new SaveDb(_ctx, _app, allDatabasesToSave[indexToSave], new ActionOnFinish(activeActivity, ContinueSave), false);
+		        saveDb.SetStatusLogger(StatusLogger);
+		        saveDb.ShowDatabaseIocInStatus = allDatabasesToSave.Count > 1;
+		        saveDb.Run();
 		    }
-			}, OnFinishToRun);
 
-			// Save
-			SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun, false);
+
+		    SaveDb save = new SaveDb(_ctx, _app, allDatabasesToSave[0], new ActionOnFinish(ActiveActivity, ContinueSave), false);
             save.SetStatusLogger(StatusLogger);
+		    save.ShowDatabaseIocInStatus = allDatabasesToSave.Count > 1;
             save.Run();
 		}
 	}

src/Kp2aBusinessLogic/database/edit/OnFinish.cs

@@ -16,6 +16,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
   */
 
 using System;
+using Android;
 using Android.App;
 using Android.Content;
 using Android.OS;
@@ -29,6 +30,12 @@ namespace keepass2android
 		protected String Message;
 		protected Exception Exception;
 
+	    protected bool ImportantMessage
+	    {
+	        get;
+	        set;
+	    }
+
         protected OnFinish BaseOnFinish;
 		protected Handler Handler;
 		private ProgressDialogStatusLogger _statusLogger = new ProgressDialogStatusLogger(); //default: no logging but not null -> can be used whenever desired
@@ -77,12 +84,14 @@ namespace keepass2android
 			Handler = null;
 		}
 
-		public void SetResult(bool success, string message, Exception exception) {
+		public void SetResult(bool success, string message, bool importantMessage, Exception exception) {
 			Success = success;
 			Message = message;
+		    ImportantMessage = importantMessage;
 			Exception = exception;
 		}
 
+
 	    public void SetResult(bool success) {
 			Success = success;
 		}
@@ -90,7 +99,7 @@ namespace keepass2android
 		public virtual void Run() {
 			if (BaseOnFinish == null) return;
 			// Pass on result on call finish
-			BaseOnFinish.SetResult(Success, Message, Exception);
+			BaseOnFinish.SetResult(Success, Message, ImportantMessage, Exception);
 				
 			if ( Handler != null ) {
 				Handler.Post(BaseOnFinish.Run); 
@@ -100,13 +109,30 @@ namespace keepass2android
 		}
 		
 		protected void DisplayMessage(Context ctx) {
-			DisplayMessage(ctx, Message);
+			DisplayMessage(ctx, Message, ImportantMessage);
 		}
 
-		public static void DisplayMessage(Context ctx, string message)
+		public static void DisplayMessage(Context ctx, string message, bool makeDialog)
 		{
 			if ( !String.IsNullOrEmpty(message) ) {
 			    Kp2aLog.Log("OnFinish message: " + message);
+                if (makeDialog && ctx != null)
+			    {
+			        try
+			        {
+			            AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
+			            
+			            builder.SetMessage(message)
+			                .SetPositiveButton(Android.Resource.String.Ok, (sender, args) => ((Dialog)sender).Dismiss())
+			                .Show();
+
+                    }
+                    catch (Exception)
+			        {
+			            Toast.MakeText(ctx, message, ToastLength.Long).Show();
+			        }
+			    }
+                else
                     Toast.MakeText(ctx ?? Application.Context, message, ToastLength.Long).Show();
 			}
 		}

src/Kp2aBusinessLogic/database/edit/RunnableOnFinish.cs

@@ -50,9 +50,9 @@ namespace keepass2android
 	        }
 	    }
 
-        protected void Finish(bool result, String message, Exception exception = null) {
+        protected void Finish(bool result, String message, bool importantMessage = false, Exception exception = null) {
 			if ( OnFinishToRun != null ) {
-				OnFinishToRun.SetResult(result, message, exception);
+				OnFinishToRun.SetResult(result, message, importantMessage, exception);
 				OnFinishToRun.Run();
 			}
 		}

src/Kp2aBusinessLogic/database/edit/SaveDB.cs

@@ -34,6 +34,7 @@ namespace keepass2android
 
 	public class SaveDb : RunnableOnFinish {
 		private readonly IKp2aApp _app;
+	    private readonly Database _db;
 	    private readonly bool _dontSave;
 
 		/// <summary>
@@ -43,9 +44,10 @@ namespace keepass2android
 		private readonly Context _ctx;
 		private Thread _workerThread;
 
-		public SaveDb(Activity ctx, IKp2aApp app, OnFinish finish, bool dontSave)
+		public SaveDb(Activity ctx, IKp2aApp app, Database db, OnFinish finish, bool dontSave)
 			: base(ctx, finish)
 		{
+		    _db = db;
 			_ctx = ctx;
 			_app = app;
 			_dontSave = dontSave;
@@ -59,23 +61,26 @@ namespace keepass2android
 		/// <param name="finish"></param>
 		/// <param name="dontSave"></param>
 		/// <param name="streamForOrigFile">Stream for reading the data from the (changed) original location</param>
-		public SaveDb(Activity ctx, IKp2aApp app, OnFinish finish, bool dontSave, Stream streamForOrigFile)
+		public SaveDb(Activity ctx, IKp2aApp app, OnFinish finish, Database db, bool dontSave, Stream streamForOrigFile)
 			: base(ctx, finish)
 		{
+		    _db = db;
 			_ctx = ctx;
 			_app = app;
 			_dontSave = dontSave;
 			_streamForOrigFile = streamForOrigFile;
 		}
 
-		public SaveDb(Activity ctx, IKp2aApp app, OnFinish finish)
+		public SaveDb(Activity ctx, IKp2aApp app, Database db, OnFinish finish)
 			: base(ctx, finish)
 		{
 			_ctx = ctx;
 			_app = app;
+		    _db = db;
 		    _dontSave = false;
 		}
 
+	    public bool ShowDatabaseIocInStatus { get; set; }
 	    
 	    public override void Run ()
 		{
@@ -84,21 +89,27 @@ namespace keepass2android
 			{
 				try
 				{
-					if (_app.GetDb().CanWrite == false)
+					if (_db.CanWrite == false)
 					{
 						//this should only happen if there is a problem in the UI so that the user sees an edit interface.
 						Finish(false,"Cannot save changes. File is read-only!");
 						return;
 					}
 
-					StatusLogger.UpdateMessage(UiStringKey.saving_database);
-					IOConnectionInfo ioc = _app.GetDb().Ioc;
+				    string message = _app.GetResourceString(UiStringKey.saving_database);
+
+				    if (ShowDatabaseIocInStatus)
+				        message += " (" + _app.GetFileStorage(_db.Ioc).GetDisplayName(_db.Ioc) + ")";
+
+                    StatusLogger.UpdateMessage(message);
+                    
+					IOConnectionInfo ioc = _db.Ioc;
 					IFileStorage fileStorage = _app.GetFileStorage(ioc);
 
 					if (_streamForOrigFile == null)
 					{
 						if ((!_app.GetBooleanPreference(PreferenceKey.CheckForFileChangesOnSave))
-							|| (_app.GetDb().KpDatabase.HashOfFileOnDisk == null)) //first time saving
+							|| (_db.KpDatabase.HashOfFileOnDisk == null)) //first time saving
 						{
 							PerformSaveWithoutCheck(fileStorage, ioc);
 							Finish(true);
@@ -109,8 +120,8 @@ namespace keepass2android
 
 					if (
 						(_streamForOrigFile != null)
-						|| fileStorage.CheckForFileChangeFast(ioc, _app.GetDb().LastFileVersion)  //first try to use the fast change detection
-						|| (FileHashChanged(ioc, _app.GetDb().KpDatabase.HashOfFileOnDisk) == FileHashChange.Changed) //if that fails, hash the file and compare:
+						|| fileStorage.CheckForFileChangeFast(ioc, _db.LastFileVersion)  //first try to use the fast change detection
+						|| (FileHashChanged(ioc, _db.KpDatabase.HashOfFileOnDisk) == FileHashChange.Changed) //if that fails, hash the file and compare:
 						)
 					{
 
@@ -128,6 +139,7 @@ namespace keepass2android
 										//small.
 										MergeIn(fileStorage, ioc);
 										PerformSaveWithoutCheck(fileStorage, ioc);
+                                        _db.UpdateGlobals();
 										Finish(true);
 									};
 								RunInWorkerThread(runHandler);
@@ -217,13 +229,13 @@ namespace keepass2android
 			StatusLogger.UpdateSubMessage(_app.GetResourceString(UiStringKey.SynchronizingDatabase));
 
 			PwDatabase pwImp = new PwDatabase();
-			PwDatabase pwDatabase = _app.GetDb().KpDatabase;
+			PwDatabase pwDatabase = _db.KpDatabase;
 			pwImp.New(new IOConnectionInfo(), pwDatabase.MasterKey);
 			pwImp.MemoryProtection = pwDatabase.MemoryProtection.CloneDeep();
 			pwImp.MasterKey = pwDatabase.MasterKey;
 			var stream = GetStreamForBaseFile(fileStorage, ioc);
 
-			_app.GetDb().DatabaseFormat.PopulateDatabaseFromStream(pwImp, stream, null);
+			_db.DatabaseFormat.PopulateDatabaseFromStream(pwImp, stream, null);
 			
 
 			pwDatabase.MergeIn(pwImp, PwMergeMethod.Synchronize, null); 
@@ -249,8 +261,8 @@ namespace keepass2android
 		private void PerformSaveWithoutCheck(IFileStorage fileStorage, IOConnectionInfo ioc)
 		{
 			StatusLogger.UpdateSubMessage("");
-			_app.GetDb().SaveData();
-			_app.GetDb().LastFileVersion = fileStorage.GetCurrentFileVersionFast(ioc);
+			_db.SaveData();
+			_db.LastFileVersion = fileStorage.GetCurrentFileVersionFast(ioc);
 		}
 
 		public byte[] HashOriginalFile(IOConnectionInfo iocFile)

src/Kp2aBusinessLogic/database/edit/SetPassword.cs

@@ -52,7 +52,7 @@ namespace keepass2android
 		public override void Run ()
 		{
 			StatusLogger.UpdateMessage(UiStringKey.SettingPassword);
-			PwDatabase pm = _app.GetDb().KpDatabase;
+			PwDatabase pm = _app.CurrentDb.KpDatabase;
 			CompositeKey newKey = new CompositeKey ();
 			if (String.IsNullOrEmpty (_password) == false) {
 				newKey.AddUserKey (new KcpPassword (_password)); 
@@ -74,7 +74,7 @@ namespace keepass2android
 
 			// Save Database
 			_onFinishToRun = new AfterSave(ActiveActivity, previousKey, previousMasterKeyChanged, pm, OnFinishToRun);
-			SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun, _dontSave);
+			SaveDb save = new SaveDb(_ctx, _app, _app.CurrentDb, OnFinishToRun, _dontSave);
 			save.SetStatusLogger(StatusLogger);
 			save.Run();
 		}

src/Kp2aBusinessLogic/database/edit/UpdateEntry.cs

@@ -36,7 +36,7 @@ namespace keepass2android
 		
 		public override void Run() {
 			// Commit to disk
-			SaveDb save = new SaveDb(_ctx, _app, OnFinishToRun);
+			SaveDb save = new SaveDb(_ctx, _app, _app.CurrentDb, OnFinishToRun);
 			save.SetStatusLogger(StatusLogger);
 			save.Run();
 		}
@@ -59,7 +59,7 @@ namespace keepass2android
 					if ( parent != null ) {
 
 						// Mark parent group dirty
-						_app.GetDb().Dirty.Add(parent);
+						_app.DirtyGroups.Add(parent);
 							
 					}
 					

src/Kp2aKeyboardBinding/Kp2aKeyboardBinding.csproj

@@ -67,5 +67,4 @@
   <ItemGroup>
     <Folder Include="libs\" />
   </ItemGroup>
-  
 </Project>

src/PCloudBindings/PCloudBindings.csproj

@@ -67,7 +67,7 @@
 
     <None Include="Jars\AboutJars.txt" />
     <None Include="Additions\AboutAdditions.txt" />
-    <LibraryProjectZip Include="Jars\pcloud-sdk-android-1.0.1.aar" />
+    <LibraryProjectZip Include="Jars\pcloud-sdk-android-1.1.0.aar" />
   </ItemGroup>
   <ItemGroup>
     <TransformFile Include="Transforms\Metadata.xml" />
@@ -84,7 +84,7 @@
   </Target>
   -->
   <ItemGroup>
-    <EmbeddedReferenceJar Include="Jars\pcloud-sdk-java-core-1.0.1.jar" />
+    <EmbeddedReferenceJar Include="Jars\pcloud-sdk-java-core-1.1.0.jar" />
   </ItemGroup>
 
 </Project>

src/PCloudBindings/Properties/AssemblyInfo.cs

@@ -26,5 +26,5 @@ using Android.App;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("1.1.0.0")]
+[assembly: AssemblyFileVersion("1.1.0.0")]

src/PluginSdkBinding/PluginSdkBinding.csproj

@@ -53,8 +53,8 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
-    <LibraryProjectZip Include="..\java\Keepass2AndroidPluginSDK2\app\build\outputs\aar\app-release.aar">
-      <Link>Jars\app-release.aar</Link>
+    <LibraryProjectZip Include="..\java\Keepass2AndroidPluginSDK2\app\build\outputs\aar\Keepass2AndroidPluginSDK2-release.aar">
+      <Link>Jars\Keepass2AndroidPluginSDK2-release.aar</Link>
     </LibraryProjectZip>
     <None Include="Jars\AboutJars.txt" />
     <None Include="Additions\AboutAdditions.txt" />

src/build-scripts/build-java.bat

@@ -7,4 +7,7 @@ call gradlew assemble
 cd ..\Keepass2AndroidPluginSDK2
 call gradlew assemble
 
+cd ..\PluginQR
+call gradlew assemble
+
 cd ..\..\build-scripts

src/build-scripts/build-java.sh

@@ -15,4 +15,8 @@ pushd Keepass2AndroidPluginSDK2
 ./gradlew assemble
 popd
 
+pushd PluginQR
+./gradlew assemble
+popd
+
 popd

src/java/JavaFileStorage/app/build.gradle

@@ -35,8 +35,12 @@ dependencies {
     compile('com.onedrive.sdk:onedrive-sdk-android:1.2.0') {
         transitive = false
     }
-    compile 'com.pcloud.sdk:java-core:1.0.1'
-    compile 'com.pcloud.sdk:android:1.0.1'
+    compile 'com.pcloud.sdk:java-core:1.1.0'
+    compile 'com.pcloud.sdk:android:1.1.0'
+    compile('com.microsoft.graph:msgraph-sdk-android:1.2.+')
+    compile ('com.microsoft.identity.client:msal:0.1.+') {
+        exclude group: 'com.android.support', module: 'appcompat-v7'
+    }
     compile 'com.google.code.gson:gson:2.3.1'
     compile 'com.microsoft.services.msa:msa-auth:0.8.6'
     compile 'com.microsoft.aad:adal:1.14.0'

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/OneDriveStorage2.java

@@ -0,0 +1,486 @@
+package keepass2android.javafilestorage;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+
+
+import com.microsoft.graph.core.ClientException;
+import com.microsoft.graph.core.DefaultClientConfig;
+import com.microsoft.graph.core.GraphErrorCodes;
+import com.microsoft.graph.extensions.DriveItem;
+import com.microsoft.graph.extensions.GraphServiceClient;
+import com.microsoft.graph.extensions.IDriveItemCollectionPage;
+import com.microsoft.graph.extensions.IDriveItemCollectionRequestBuilder;
+import com.microsoft.graph.extensions.IDriveItemRequest;
+import com.microsoft.graph.extensions.IDriveItemRequestBuilder;
+import com.microsoft.graph.extensions.IGraphServiceClient;
+import com.microsoft.identity.client.AuthenticationCallback;
+import com.microsoft.identity.client.AuthenticationResult;
+import com.microsoft.identity.client.MsalException;
+import com.microsoft.identity.client.PublicClientApplication;
+import com.microsoft.identity.client.User;
+
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+
+import keepass2android.javafilestorage.onedrive2.GraphServiceClientManager;
+
+
+/**
+ * Created by Philipp on 20.11.2016.
+ */
+public class OneDriveStorage2 extends JavaFileStorageBase
+{
+    PublicClientApplication mPublicClientApp;
+
+    final HashMap<String /*userid*/, IGraphServiceClient> mClientByUser = new HashMap<String /*userid*/, IGraphServiceClient>();
+
+    private static final String[] scopes = {"openid","offline_access", "https://graph.microsoft.com/Files.ReadWrite","https://graph.microsoft.com/User.Read"};
+
+
+    public OneDriveStorage2(final Activity context, final String clientId) {
+
+        mPublicClientApp = new PublicClientApplication(context, clientId);
+        initAuthenticator(context);
+
+
+    }
+
+
+    @Override
+    public boolean requiresSetup(String path)
+    {
+
+        return !isConnected(null);
+    }
+
+    @Override
+    public void startSelectFile(FileStorageSetupInitiatorActivity activity, boolean isForSave, int requestCode) {
+
+        initAuthenticator((Activity)activity.getActivity());
+
+        String path = getProtocolId()+":///";
+        Log.d("KP2AJ", "startSelectFile "+path+", connected: "+path);
+		if (isConnected(null))
+		{
+			Intent intent = new Intent();
+			intent.putExtra(EXTRA_IS_FOR_SAVE, isForSave);
+			intent.putExtra(EXTRA_PATH, path);
+			activity.onImmediateResult(requestCode, RESULT_FILECHOOSER_PREPARED, intent);
+		}
+		else
+        {
+            activity.startSelectFileProcess(path, isForSave, requestCode);
+        }
+    }
+
+    private boolean isConnected(String path) {
+        try {
+            if (tryGetMsGraphClient(path) == null)
+                try {
+                    final CountDownLatch latch = new CountDownLatch(1);
+
+                    Log.d("KP2AJ", "trying silent login");
+
+                    String userId = extractUserId(path);
+                    final MsalException[] _exception = {null};
+                    final AuthenticationResult[] _result = {null};
+                    User user = mPublicClientApp.getUser(userId);
+                    mPublicClientApp.acquireTokenSilentAsync(scopes, user,
+                            new AuthenticationCallback() {
+
+                                @Override
+                                public void onSuccess(AuthenticationResult authenticationResult) {
+                                    _result[0] = authenticationResult;
+                                    latch.countDown();
+                                }
+
+                                @Override
+                                public void onError(MsalException exception) {
+                                    _exception[0] = exception;
+                                    latch.countDown();
+                                }
+
+                                @Override
+                                public void onCancel() {
+                                    latch.countDown();
+
+                                }
+                            });
+                    latch.await();
+                    if (_result[0] != null) {
+                        buildClient(_result[0]);
+                    } else if (_exception[0] != null){
+                        _exception[0].printStackTrace();
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            return tryGetMsGraphClient(path) != null;
+        }
+        catch (Exception e)
+        {
+            return false;
+        }
+
+    }
+
+    private IGraphServiceClient tryGetMsGraphClient(String path) throws Exception
+    {
+        String userId = extractUserId(path);
+        if (mClientByUser.containsKey(userId))
+            return mClientByUser.get(userId);
+        return null;
+    }
+
+    private String extractUserId(String path) throws Exception {
+        String pathWithoutProtocol = removeProtocol(path);
+        String[] parts = pathWithoutProtocol.split("/",1);
+        if (parts.length != 2 || ("".equals(parts[0])))
+        {
+            throw new Exception("path does not contain user");
+        }
+        return parts[0];
+    }
+
+    private void initAuthenticator(Activity activity) {
+
+
+    }
+
+
+    @Override
+    public void prepareFileUsage(FileStorageSetupInitiatorActivity activity, String path, int requestCode, boolean alwaysReturnSuccess) {
+        initAuthenticator((Activity)activity.getActivity());
+        if (isConnected(path))
+        {
+            Intent intent = new Intent();
+            intent.putExtra(EXTRA_PATH, path);
+            activity.onImmediateResult(requestCode, RESULT_FILEUSAGE_PREPARED, intent);
+        }
+        else
+        {
+            activity.startFileUsageProcess(path, requestCode, alwaysReturnSuccess);
+        }
+
+    }
+
+    @Override
+    public String getProtocolId() {
+        return "onedrive";
+    }
+
+    @Override
+    public void prepareFileUsage(Context appContext, String path) throws UserInteractionRequiredException {
+        if (!isConnected(null))
+        {
+            throw new UserInteractionRequiredException();
+        }
+
+    }
+
+    @Override
+    public void onCreate(FileStorageSetupActivity activity, Bundle savedInstanceState) {
+
+        Log.d("KP2AJ", "OnCreate");
+
+    }
+
+    @Override
+    public void onResume(final FileStorageSetupActivity activity) {
+
+
+
+
+    }
+
+
+
+    private IGraphServiceClient buildClient(AuthenticationResult authenticationResult) throws InterruptedException {
+
+        IGraphServiceClient newClient = new GraphServiceClient.Builder()
+                .fromConfig(DefaultClientConfig.createWithAuthenticationProvider(new GraphServiceClientManager(authenticationResult.getAccessToken())))
+                .buildClient();
+        mClientByUser.put(authenticationResult.getUser().getUserIdentifier(), newClient);
+
+        return newClient;
+    }
+
+
+
+    String removeProtocol(String path) throws Exception {
+        if (path == null)
+            return null;
+        return path.substring(getProtocolId().length()+3);
+    }
+
+    @Override
+    public String getDisplayName(String path) {
+
+        if (path == null)
+            return null;
+
+        return path;
+    }
+
+    @Override
+    public String getFilename(String path) throws Exception {
+        return path.substring(path.lastIndexOf("/")+1);
+    }
+
+    @Override
+    public boolean checkForFileChangeFast(String path, String previousFileVersion) throws Exception {
+        return false;
+    }
+
+    @Override
+    public String getCurrentFileVersionFast(String path) {
+        return null;
+    }
+
+    class ClientAndPath
+    {
+        public IGraphServiceClient client;
+        public String oneDrivePath;
+        public IDriveItemRequestBuilder getPathItem()
+        {
+            IDriveItemRequestBuilder pathItem = client.getDrive().getRoot();
+            if ("".equals(oneDrivePath) == false) {
+                pathItem = pathItem.getItemWithPath(oneDrivePath);
+            }
+            return pathItem;
+        }
+    }
+
+    @Override
+    public InputStream openFileForRead(String path) throws Exception {
+        try {
+            ClientAndPath clientAndpath = getOneDriveClientAndPath(path);
+            logDebug("openFileForRead. Path="+path);
+            InputStream result = clientAndpath.client.getDrive()
+                    .getRoot()
+                    .getItemWithPath(clientAndpath.oneDrivePath)
+                    .getContent()
+                    .buildRequest()
+                    .get();
+            logDebug("ok");
+            return result;
+
+        }
+        catch (ClientException e)
+        {
+            throw convertException(e);
+        }
+    }
+
+    private ClientAndPath getOneDriveClientAndPath(String path) throws Exception {
+        ClientAndPath result = new ClientAndPath();
+
+        String pathWithoutProtocol = removeProtocol(path);
+        String[] parts = pathWithoutProtocol.split("/",2);
+        if (parts.length != 2 || ("".equals(parts[0])))
+        {
+            throw new Exception("path does not contain user");
+        }
+        result.client = mClientByUser.get(parts[0]);
+        result.oneDrivePath = parts[1];
+        return result;
+
+    }
+
+
+    private Exception convertException(ClientException e) {
+        if (e.isError(GraphErrorCodes.ItemNotFound))
+            return new FileNotFoundException(e.getMessage());
+        return e;
+    }
+
+    @Override
+    public void uploadFile(String path, byte[] data, boolean writeTransactional) throws Exception {
+        try {
+            ClientAndPath clientAndPath = getOneDriveClientAndPath(path);
+            clientAndPath.client.getDrive()
+                    .getRoot()
+                    .getItemWithPath(clientAndPath.oneDrivePath)
+                    .getContent()
+                    .buildRequest()
+                    .put(data);
+        } catch (ClientException e) {
+            throw convertException(e);
+        }
+    }
+
+    @Override
+    public String createFolder(String parentPath, String newDirName) throws Exception {
+        throw new Exception("not implemented.");
+    }
+
+    @Override
+    public String createFilePath(String parentPath, String newFileName) throws Exception {
+        String path = parentPath;
+        if (!path.endsWith("/"))
+            path = path + "/";
+        path = path + newFileName;
+
+        return path;
+    }
+
+    @Override
+    public List<FileEntry> listFiles(String parentPath) throws Exception {
+        try {
+            ArrayList<FileEntry> result = new ArrayList<FileEntry>();
+            ClientAndPath clientAndPath = getOneDriveClientAndPath(parentPath);
+            parentPath = clientAndPath.oneDrivePath;
+
+            IDriveItemCollectionPage itemsPage = clientAndPath.getPathItem()
+                    .getChildren()
+                    .buildRequest()
+                    .get();
+            if (parentPath.endsWith("/"))
+                parentPath = parentPath.substring(0,parentPath.length()-1);
+            while (true)
+            {
+                List<DriveItem> items = itemsPage.getCurrentPage();
+                if (items.isEmpty())
+                    return result;
+
+                for (DriveItem i: items)
+                {
+                    FileEntry e = getFileEntry(parentPath + "/" + i.name, i);
+                    Log.d("KP2AJ", e.path);
+                    result.add(e);
+                }
+                IDriveItemCollectionRequestBuilder nextPageReqBuilder = itemsPage.getNextPage();
+                if (nextPageReqBuilder == null)
+                    return result;
+                itemsPage = nextPageReqBuilder.buildRequest().get();
+
+            }
+        } catch (ClientException e) {
+            throw convertException(e);
+        }
+    }
+
+    private FileEntry getFileEntry(String path, DriveItem i) {
+        FileEntry e = new FileEntry();
+        if (i.size != null)
+            e.sizeInBytes = i.size;
+        else if ((i.remoteItem != null) && (i.remoteItem.size != null))
+            e.sizeInBytes = i.remoteItem.size;
+
+        e.displayName = i.name;
+        e.canRead = e.canWrite = true;
+        e.path = getProtocolId() +"://"+path;
+        if (i.lastModifiedDateTime != null)
+            e.lastModifiedTime = i.lastModifiedDateTime.getTimeInMillis();
+        else if ((i.remoteItem != null)&&(i.remoteItem.lastModifiedDateTime != null))
+            e.lastModifiedTime = i.remoteItem.lastModifiedDateTime.getTimeInMillis();
+        e.isDirectory = (i.folder != null) || ((i.remoteItem != null) && (i.remoteItem.folder != null));
+        return e;
+    }
+
+    @Override
+    public FileEntry getFileEntry(String filename) throws Exception {
+        try {
+
+            ClientAndPath clientAndPath = getOneDriveClientAndPath(filename);
+            IDriveItemRequestBuilder pathItem = clientAndPath.getPathItem();
+
+            IDriveItemRequest request = pathItem.buildRequest();
+            DriveItem item = request.get();
+            return getFileEntry(filename, item);
+        } catch (ClientException e) {
+            throw convertException(e);
+        }
+    }
+
+    @Override
+    public void delete(String path) throws Exception {
+        try {
+            ClientAndPath clientAndPath = getOneDriveClientAndPath(path);
+            clientAndPath.client.getDrive()
+                    .getRoot()
+                    .getItemWithPath(clientAndPath.oneDrivePath)
+                    .buildRequest()
+                    .delete();
+        } catch (ClientException e) {
+            throw convertException(e);
+        }
+    }
+
+    boolean acquireTokenRunning = false;
+    @Override
+    public void onStart(final FileStorageSetupActivity activity) {
+        Log.d("KP2AJ", "onStart " + activity.getPath());
+        if (activity.getProcessName().equals(PROCESS_NAME_SELECTFILE))
+            activity.getState().putString(EXTRA_PATH, activity.getPath());
+
+        String userId = activity.getState().getString("OneDriveUser");
+        if (mClientByUser.containsKey(userId)) {
+            finishActivityWithSuccess(activity);
+            return;
+        }
+
+
+        JavaFileStorage.FileStorageSetupActivity storageSetupAct = activity;
+
+        final CountDownLatch latch = new CountDownLatch(1);
+        final AuthenticationResult[] _authenticationResult = {null};
+        MsalException _exception[] = {null};
+
+        if (!acquireTokenRunning) {
+            acquireTokenRunning = true;
+
+            mPublicClientApp.acquireToken((Activity) activity, scopes, new AuthenticationCallback() {
+                @Override
+                public void onSuccess(AuthenticationResult authenticationResult) {
+                    Log.i(TAG, "authenticating successful");
+
+                    try {
+                        buildClient(authenticationResult);
+                    } catch (InterruptedException e) {
+                        e.printStackTrace();
+                    }
+                    activity.getState().putString(EXTRA_PATH, getProtocolPrefix() + authenticationResult.getUser().getUserIdentifier() + "/");
+
+                    finishActivityWithSuccess(activity);
+                    acquireTokenRunning = false;
+                    return;
+                }
+
+                @Override
+                public void onError(MsalException exception) {
+                    Log.i(TAG, "authenticating not successful");
+                    Intent data = new Intent();
+                    data.putExtra(EXTRA_ERROR_MESSAGE, "authenticating not successful");
+                    ((Activity) activity).setResult(Activity.RESULT_CANCELED, data);
+                    ((Activity) activity).finish();
+                    acquireTokenRunning = false;
+                }
+
+                @Override
+                public void onCancel() {
+
+                    Log.i(TAG, "authenticating cancelled");
+                    Intent data = new Intent();
+                    data.putExtra(EXTRA_ERROR_MESSAGE, "authenticating not cancelled");
+                    ((Activity) activity).setResult(Activity.RESULT_CANCELED, data);
+                    ((Activity) activity).finish();
+                    acquireTokenRunning = false;
+                }
+            });
+        }
+    }
+
+    @Override
+    public void onActivityResult(FileStorageSetupActivity activity, int requestCode, int resultCode, Intent data) {
+        mPublicClientApp.handleInteractiveRequestRedirect(requestCode, resultCode, data);
+    }
+}

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/PCloudFileStorage.java

@@ -14,6 +14,7 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 import java.util.NoSuchElementException;
+import java.util.UUID;
 import java.util.regex.Pattern;
 
 import com.pcloud.sdk.ApiClient;
@@ -27,6 +28,7 @@ import com.pcloud.sdk.PCloudSdk;
 import com.pcloud.sdk.RemoteEntry;
 import com.pcloud.sdk.RemoteFile;
 import com.pcloud.sdk.RemoteFolder;
+import com.pcloud.sdk.UploadOptions;
 
 /**
  * FileStorage implementation for PCloud provider.
@@ -52,7 +54,7 @@ public class PCloudFileStorage extends JavaFileStorageBase
 
     @Override
     public boolean requiresSetup(String path) {
-        return true;
+        return !this.isConnected();
     }
 
     @Override
@@ -136,7 +138,9 @@ public class PCloudFileStorage extends JavaFileStorageBase
         RemoteFolder remoteFolder = this.getRemoteFolderByPath(filePath);
 
         try {
-            this.apiClient.createFile(remoteFolder, filename, dataSource).execute();
+            RemoteFile remoteFile = this.apiClient.createFile(
+                remoteFolder, filename, dataSource, null, null, UploadOptions.OVERRIDE_FILE
+            ).execute();
         } catch (ApiError e) {
             throw convertApiError(e);
         }
@@ -372,7 +376,7 @@ public class PCloudFileStorage extends JavaFileStorageBase
 
     private Exception convertApiError(ApiError e) {
         String strErrorCode = String.valueOf(e.errorCode());
-        if (strErrorCode.startsWith("1") || "2000".equals(strErrorCode)) {
+        if (strErrorCode.startsWith("1") || "2000".equals(strErrorCode) || "2095".equals(strErrorCode)) {
             this.clearAuthToken();
             return new UserInteractionRequiredException("Unlinked from PCloud! User must re-link.", e);
         } else if (strErrorCode.startsWith("2")) {

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/SftpStorage.java

@@ -24,7 +24,6 @@ import com.jcraft.jsch.UserInfo;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
 
 public class SftpStorage extends JavaFileStorageBase {
 
@@ -358,12 +357,10 @@ public class SftpStorage extends JavaFileStorageBase {
 
 	}
 
-	@NonNull
 	private String getBaseDir() {
 		return _appContext.getFilesDir().getAbsolutePath();
 	}
 
-	@NonNull
 	private String getKeyFileName() {
 		return getBaseDir() + "/id_kp2a_rsa";
 	}

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/WebDavStorage.java

@@ -29,6 +29,7 @@ import java.util.Date;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.TimeUnit;
 
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSocketFactory;
@@ -70,9 +71,18 @@ public class WebDavStorage extends JavaFileStorageBase {
 
         String scheme = filename.substring(0, filename.indexOf("://"));
         filename = filename.substring(scheme.length() + 3);
-        String userPwd = filename.substring(0, filename.indexOf('@'));
-        ci.username = decode(userPwd.substring(0, userPwd.indexOf(":")));
-        ci.password = decode(userPwd.substring(userPwd.indexOf(":") + 1));
+        int idxAt = filename.indexOf('@');
+        if (idxAt >= 0)
+        {
+            String userPwd = filename.substring(0, idxAt);
+            int idxColon = userPwd.indexOf(":");
+            if (idxColon >= 0);
+            {
+                ci.username = decode(userPwd.substring(0, idxColon));
+                ci.password = decode(userPwd.substring(idxColon + 1));
+            }
+        }
+
         ci.URL = scheme + "://" +filename.substring(filename.indexOf('@') + 1);
         return ci;
     }
@@ -149,13 +159,19 @@ public class WebDavStorage extends JavaFileStorageBase {
             sslContext.init(null, new TrustManager[] { trustManager }, null);
             SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
 
+
             builder = builder.sslSocketFactory(sslSocketFactory, trustManager)
                              .hostnameVerifier(new DecoratedHostnameVerifier(OkHostnameVerifier.INSTANCE, mCertificateErrorHandler));
 
 
+            builder.connectTimeout(25, TimeUnit.SECONDS);
+            builder.readTimeout(25, TimeUnit.SECONDS);
+            builder.writeTimeout(25, TimeUnit.SECONDS);
         }
 
         OkHttpClient client =  builder.build();
+
+
         return client;
     }
 

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/onedrive2/GraphServiceClientManager.java

@@ -0,0 +1,45 @@
+package keepass2android.javafilestorage.onedrive2;
+
+import com.microsoft.graph.authentication.IAuthenticationProvider;
+import com.microsoft.graph.core.DefaultClientConfig;
+import com.microsoft.graph.core.IClientConfig;
+import com.microsoft.graph.extensions.GraphServiceClient;
+import com.microsoft.graph.extensions.IGraphServiceClient;
+import com.microsoft.graph.http.IHttpRequest;
+
+/**
+ * Singleton class that manages a GraphServiceClient object.
+ * It implements IAuthentication provider to authenticate requests using an access token.
+ */
+public class GraphServiceClientManager implements IAuthenticationProvider {
+    private IGraphServiceClient mGraphServiceClient;
+    private String mAccessToken;
+
+    public GraphServiceClientManager(String accessToken) {
+        mAccessToken = accessToken;
+    }
+
+    @Override
+    public void authenticateRequest(IHttpRequest request)  {
+        try {
+            request.addHeader("Authorization", "Bearer " + mAccessToken);
+        } catch (NullPointerException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public synchronized IGraphServiceClient getGraphServiceClient() {
+        return getGraphServiceClient(this);
+    }
+
+    public synchronized IGraphServiceClient getGraphServiceClient(IAuthenticationProvider authenticationProvider) {
+        if (mGraphServiceClient == null) {
+            IClientConfig clientConfig = DefaultClientConfig.createWithAuthenticationProvider(
+                    authenticationProvider
+            );
+            mGraphServiceClient = new GraphServiceClient.Builder().fromConfig(clientConfig).buildClient();
+        }
+
+        return mGraphServiceClient;
+    }
+}

src/java/JavaFileStorageTest-AS/app/build.gradle

@@ -10,6 +10,8 @@ android {
         targetSdkVersion 23
         versionCode 1
         versionName "1.0"
+        multiDexEnabled true
+
 
     }
     buildTypes {

src/java/JavaFileStorageTest-AS/app/src/main/AndroidManifest.xml

@@ -59,6 +59,18 @@
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
+
+        <activity
+            android:name="com.microsoft.identity.client.BrowserTabActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="@string/msalPrefix"
+                    android:host="auth" />
+            </intent-filter>
+        </activity>
+
     </application>
 
 
@@ -68,6 +80,8 @@
     <uses-permission android:name="android.permission.USE_CREDENTIALS" />
     <uses-permission android:name="android.permission.MANAGE_ACCOUNTS"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
 
 
 </manifest>

src/java/JavaFileStorageTest-AS/app/src/main/java/com/crocoapps/javafilestoragetest/FileStorageSetupActivity.java

@@ -89,6 +89,8 @@ extends Activity implements JavaFileStorage.FileStorageSetupActivity {
 	@Override
 	public String getPath() {
 		// TODO Auto-generated method stub
+		if (getState().containsKey(JavaFileStorage.EXTRA_PATH))
+			return getState().getString(JavaFileStorage.EXTRA_PATH);
 		return getIntent().getStringExtra(JavaFileStorage.EXTRA_PATH);
 	}
 

src/java/JavaFileStorageTest-AS/app/src/main/java/com/crocoapps/javafilestoragetest/MainActivity.java

@@ -135,7 +135,6 @@ package com.crocoapps.javafilestoragetest;
 import group.pals.android.lib.ui.filechooser.FileChooserActivity;
 import group.pals.android.lib.ui.filechooser.providers.BaseFileProviderUtils;
 
-import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -146,11 +145,9 @@ import java.util.ArrayList;
 import java.util.List;
 
 //import keepass2android.javafilestorage.DropboxCloudRailStorage;
-import keepass2android.javafilestorage.DropboxV2Storage;
-import keepass2android.javafilestorage.ICertificateErrorHandler;
 import keepass2android.javafilestorage.JavaFileStorage;
 import keepass2android.javafilestorage.JavaFileStorage.FileEntry;
-import keepass2android.javafilestorage.OneDriveStorage;
+import keepass2android.javafilestorage.OneDriveStorage2;
 import keepass2android.javafilestorage.SftpStorage;
 import keepass2android.javafilestorage.UserInteractionRequiredException;
 import keepass2android.javafilestorage.WebDavStorage;
@@ -206,10 +203,17 @@ public class MainActivity extends Activity implements JavaFileStorage.FileStorag
 				}
 				catch (Exception e)
 				{
+					Log.d("KP2AJ",e.toString());
 					//if exception because folder exists
 					path = fs.createFilePath(parentPath, testPath);
 				}
 
+				String textToUpload2 = "abcdefg";
+				String filename2 = fs.createFilePath(parentPath, "file.txt");
+				/*if (!path.endsWith("/"))
+					path += "/";
+				String filename = path+"file.text";*/
+				fs.uploadFile(filename2,textToUpload2.getBytes(),true);
 
 				FileEntry e1 = fs.getFileEntry(parentPath);
 				FileEntry e2 = fs.getFileEntry(path);
@@ -531,9 +535,11 @@ public class MainActivity extends Activity implements JavaFileStorage.FileStorag
 	}
 
 	static JavaFileStorage createStorageToTest(Context ctx, Context appContext, boolean simulateRestart) {
-		storageToTest = new SftpStorage(ctx.getApplicationContext());
+		//storageToTest = new SftpStorage(ctx.getApplicationContext());
 		//storageToTest = new SkyDriveFileStorage("000000004010C234", appContext);
-		//storageToTest = new OneDriveStorage(appContext, "000000004010C234");
+		storageToTest = new OneDriveStorage2((Activity) ctx, "8374f801-0f55-407d-80cc-9a04fe86d9b2");
+
+
 		//storageToTest = new GoogleDriveFileStorage();
 		/*storageToTest = new WebDavStorage(new ICertificateErrorHandler() {
 			@Override

src/java/JavaFileStorageTest-AS/app/src/main/res/values/strings.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-
+    <string name="msalPrefix">msal8374f801-0f55-407d-80cc-9a04fe86d9b2</string>
     <string name="action_settings">Settings</string>
     <string name="hello_world">Hello world!</string>
     <string name="title_activity_file_storage_setup">FileStorageSetupActivity</string>

src/java/KP2ASoftkeyboard_AS/app/src/main/java/keepass2android/softkeyboard/PluginManager.java

@@ -2,10 +2,14 @@ package keepass2android.softkeyboard;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.channels.Channels;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.logging.Logger;
 
 import org.xmlpull.v1.XmlPullParserException;
 
@@ -17,9 +21,11 @@ import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.Resources;
+import android.content.res.TypedArray;
 import android.content.res.XmlResourceParser;
 import android.util.Log;
 
+//based on https://github.com/klausw/hackerskeyboard/blob/master/java/src/org/pocketworkstation/pckeyboard/PluginManager.java
 public class PluginManager extends BroadcastReceiver {
     private static String TAG = "PCKeyboard";
     private static String HK_INTENT_DICT = "org.pocketworkstation.DICT";
@@ -121,6 +127,46 @@ public class PluginManager extends BroadcastReceiver {
         }
     }
 
+    static private class DictPluginSpecResourceSoftKeyboard
+            extends DictPluginSpecBase {
+
+
+        int[] resId;
+        Resources pluginRes;
+
+        public DictPluginSpecResourceSoftKeyboard(String pkg, int[] resId, Resources pluginRes) {
+            mPackageName = pkg;
+            this.resId = resId;
+            this.pluginRes = pluginRes;
+
+        }
+
+        @Override
+        InputStream[] getStreams(Resources res) {
+            final InputStream[] is = new InputStream[resId.length];
+
+            try {
+                // merging separated dictionary into one if dictionary is separated
+                int total = 0;
+                for (int i = 0; i < resId.length; i++) {
+                    
+                    // http://ponystyle.com/blog/2010/03/26/dealing-with-asset-compression-in-android-apps/
+                    // NOTE: the resource file can not be larger than 1MB
+                    is[i] = pluginRes.openRawResource(resId[i]);
+                    final int dictSize = is[i].available();
+                    Log.d(TAG, "Will load a resource dictionary id " + resId[i] + " whose size is " + dictSize + " bytes.");
+                    total += dictSize;
+                }
+                return is;
+
+            } catch (IOException e) {
+                Log.w(TAG, "No available memory for binary dictionary: " + e.getMessage());
+            }
+            return null;
+        }
+    }
+
+    
     @Override
     public void onReceive(Context context, Intent intent) {
         Log.i(TAG, "Package information changed, updating dictionaries.");
@@ -129,21 +175,59 @@ public class PluginManager extends BroadcastReceiver {
         mIME.toggleLanguage(true, true);
     }
 
+    public interface MemRelatedOperation {
+        void operation();
+    }
+
+    static final int GC_TRY_LOOP_MAX = 5;
+
+    static void doGarbageCollection(final String tag) {
+        System.gc();
+        try {
+            Thread.sleep(1000 /*ms*/);
+        } catch (InterruptedException e) {
+            Log.e(tag, "Sleep was interrupted.");
+        }
+    }
+
+    static public void performOperationWithMemRetry(final String tag, MemRelatedOperation operation) {
+        int retryCount = GC_TRY_LOOP_MAX;
+        while (true) {
+            try {
+                operation.operation();
+                return;
+            } catch (OutOfMemoryError e) {
+                if (retryCount == 0) throw e;
+
+                retryCount--;
+                Log.w(tag, "WOW! No memory for operation... I'll try to release some.");
+                doGarbageCollection(tag);
+            }
+        }
+    }
+
+
     static void getSoftKeyboardDictionaries(PackageManager packageManager) {
         Intent dictIntent = new Intent(SOFTKEYBOARD_INTENT_DICT);
         List<ResolveInfo> dictPacks = packageManager.queryBroadcastReceivers(
         		dictIntent, PackageManager.GET_RECEIVERS);
         for (ResolveInfo ri : dictPacks) {
             ApplicationInfo appInfo = ri.activityInfo.applicationInfo;
-            String pkgName = appInfo.packageName;
-            boolean success = false;
+            final String pkgName = appInfo.packageName;
+            final boolean[] success = {false};
             try {
-                Resources res = packageManager.getResourcesForApplication(appInfo);
+                final Resources res = packageManager.getResourcesForApplication(appInfo);
                 Log.i("KP2AK", "Found dictionary plugin package: " + pkgName);
                 int dictId = res.getIdentifier("dictionaries", "xml", pkgName);
-                if (dictId == 0) continue;
+
+                if (dictId == 0)
+                {
+                    Log.i("KP2AK", "dictId == 0");
+                    continue;
+                }
                 XmlResourceParser xrp = res.getXml(dictId);
 
+                int dictResourceId = 0;
                 String assetName = null;
                 String lang = null;
                 try {
@@ -157,12 +241,21 @@ public class PluginManager extends BroadcastReceiver {
                                     String convLang = SOFTKEYBOARD_LANG_MAP.get(lang);
                                     if (convLang != null) lang = convLang;
                                     String type = xrp.getAttributeValue(null, "type");
-                                    if (type == null || type.equals("raw") || type.equals("binary")) {
+
+                                    if (type == null || type.equals("raw") || type.equals("binary"))
+                                    {
                                         assetName = xrp.getAttributeValue(null, "dictionaryAssertName"); // sic
-                                    } else {
+                                        if (assetName != null) {
+                                            Log.i(TAG, "asset=" + assetName + " lang=" + lang);
+                                        }
+                                    } else if (type.equals("binary_resource"))
+                                    {
+                                        dictResourceId = xrp.getAttributeResourceValue(null, "dictionaryResourceId",0);
+                                    }
+                                    else {
                                         Log.w(TAG, "Unsupported AnySoftKeyboard dict type " + type);
                                     }
-                                    //Log.i(TAG, "asset=" + assetName + " lang=" + lang);
+
                                 }
                             }
                         }
@@ -175,15 +268,55 @@ public class PluginManager extends BroadcastReceiver {
                     Log.e(TAG, "Dictionary XML IOException");
                 }
 
-                if (assetName == null || lang == null) continue;
+                if (lang == null)
+                    continue;
+                if (assetName != null) {
                     DictPluginSpec spec = new DictPluginSpecSoftKeyboard(pkgName, assetName);
                     mPluginDicts.put(lang, spec);
                     Log.i("KP2AK", "Found plugin dictionary: lang=" + lang + ", pkg=" + pkgName);
-                success = true;
+                    success[0] = true;
+                }
+                else if (dictResourceId != 0)
+                {
+
+                    Resources pkgRes = packageManager.getResourcesForApplication(appInfo);
+                    final int[] resId;
+                    // is it an array of dictionaries? Or a ref to raw?
+                    final String dictResType = pkgRes.getResourceTypeName(dictResourceId);
+                    if (dictResType.equalsIgnoreCase("raw")) {
+                        resId = new int[]{dictResourceId};
+                    } else {
+                        TypedArray a = pkgRes.obtainTypedArray(dictResourceId);
+                        resId = new int[a.length()];
+                        for (int index = 0; index < a.length(); index++)
+                            resId[index] = a.getResourceId(index, 0);
+
+                        a.recycle();
+                    }
+
+                    final String finalLang = lang;
+                    performOperationWithMemRetry(TAG, new MemRelatedOperation() {
+                        @Override
+                        public void operation() {
+                            // The try-catch is for issue 878:
+                            // http://code.google.com/p/softkeyboard/issues/detail?id=878
+                            try {
+                                DictPluginSpec spec = new DictPluginSpecResourceSoftKeyboard(pkgName, resId, res);
+                                mPluginDicts.put(finalLang, spec);
+                                Log.i("KP2AK", "Found plugin dictionary: lang=" + finalLang + ", pkg=" + pkgName);
+                                success[0] = true;
+                            } catch (UnsatisfiedLinkError ex) {
+                                Log.w(TAG, "Failed to load binary JNI connection! Error: " + ex.getMessage());
+                            }
+                        }
+                    });
+                }
+
+
             } catch (NameNotFoundException e) {
                 Log.i("KP2AK", "bad");
             } finally {
-                if (!success) {
+                if (!success[0]) {
                     Log.i("KP2AK", "failed to load plugin dictionary spec from " + pkgName);
                 }
             }
@@ -193,6 +326,7 @@ public class PluginManager extends BroadcastReceiver {
     static void getHKDictionaries(PackageManager packageManager) {
         Intent dictIntent = new Intent(HK_INTENT_DICT);
         List<ResolveInfo> dictPacks = packageManager.queryIntentActivities(dictIntent, 0);
+        Log.i("KP2AK", "Searching for HK dictionaries. Found " + dictPacks.size() + " packages");
         for (ResolveInfo ri : dictPacks) {
             ApplicationInfo appInfo = ri.activityInfo.applicationInfo;
             String pkgName = appInfo.packageName;

src/java/Keepass2AndroidPluginSDK2/app/src/main/java/keepass2android/pluginsdk/PluginActionBroadcastReceiver.java

@@ -6,6 +6,7 @@ import java.util.Iterator;
 
 import org.json.JSONException;
 import org.json.JSONObject;
+import org.json.JSONArray;
 
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -65,7 +66,16 @@ public abstract class PluginActionBroadcastReceiver extends BroadcastReceiver {
 		
 		protected String[] getProtectedFieldsListFromIntent()
 		{
-			return _intent.getStringArrayExtra(Strings.EXTRA_PROTECTED_FIELDS_LIST);
+			try {
+				JSONArray json = new JSONArray(_intent.getStringExtra(Strings.EXTRA_PROTECTED_FIELDS_LIST));
+				String[] res = new String[json.length()];
+				for(int i = 0; i < json.length(); i++)
+					res[i] = json.getString(i);
+				return res;
+			} catch (JSONException e) {
+				e.printStackTrace();
+				return null;
+			}
 		}
 		
 

src/java/PluginQR/.gitignore

@@ -0,0 +1 @@
+/build

src/java/PluginQR/app/.gitignore

@@ -0,0 +1 @@
+/build

src/java/PluginQR/app/build.gradle

@@ -0,0 +1,37 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 26
+    buildToolsVersion '26.0.2'
+
+    defaultConfig {
+        applicationId "keepass2android.plugin.qr"
+        minSdkVersion 14
+        targetSdkVersion 19
+        versionCode 3
+        versionName "1.0.2"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
+        }
+    }
+
+
+    compileOptions {
+        sourceCompatibility 1.8
+        targetCompatibility 1.8
+    }
+
+    lintOptions {
+        disable 'ExtraTranslation'
+        disable 'MissingTranslation'
+    }
+}
+
+dependencies {
+    compile project(':Keepass2AndroidPluginSDK2')
+    compile 'com.google.zxing:core:2.3.0'
+}

src/java/PluginQR/app/src/main/AndroidManifest.xml

@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="keepass2android.plugin.qr"
-    android:versionCode="2"
-    android:versionName="1.0.1" >
+    package="keepass2android.plugin.qr" >
     
     <uses-permission android:name="android.permission.CAMERA"/>
      <uses-permission
@@ -15,10 +13,6 @@
 	<uses-feature android:name="android.hardware.camera.flash" android:required="false"/>
 	<uses-feature android:name="android.hardware.screen.portrait" android:required="false"/>
 
-    <uses-sdk
-        android:minSdkVersion="14"
-        android:targetSdkVersion="19" />
-
     <application
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"