Added Check if Database changed

src/keepass2android/Database.cs

@@ -43,12 +43,14 @@ namespace keepass2android
 		public PwGroup root;
 		public PwDatabase pm;
 		public IOConnectionInfo mIoc;
+		public DateTime mLastChangeDate;
 		public SearchDbHelper searchHelper;
 		
 		public DrawableFactory drawFactory = new DrawableFactory();
 		
 		private bool loaded = false;
 
+		private bool mReloadRequested = false;
 
 		public bool Loaded {
 			get { return loaded;}
@@ -73,20 +75,64 @@ namespace keepass2android
 			}
 		}
 		
-	
+		public bool DidOpenFileChange()
+		{
+			if ((Loaded == false) || (mIoc.IsLocalFile() == false))
+			{
+				return false;
+			}
+			return System.IO.File.GetLastWriteTimeUtc(mIoc.Path) > mLastChangeDate;
+		}
+
+		public void CheckForOpenFileChanged(Activity activity)
+		{
+			if (DidOpenFileChange())
+			{
+				if (mReloadRequested)
+				{
+
+					activity.SetResult(KeePass.EXIT_RELOAD_DB);
+					activity.Finish();
+				}
+				AlertDialog.Builder builder = new AlertDialog.Builder(activity);
+				builder.SetTitle(activity.GetString(Resource.String.AskReloadFile_title));
+				
+				builder.SetMessage(activity.GetString(Resource.String.AskReloadFile));
+				
+				builder.SetPositiveButton(activity.GetString(Android.Resource.String.Yes), new EventHandler<DialogClickEventArgs>((dlgSender, dlgEvt) => 
+				                                                                                                                    {
+					mReloadRequested = true;
+					activity.SetResult(KeePass.EXIT_RELOAD_DB);
+					activity.Finish();
+
+				}));
+				
+				builder.SetNegativeButton(activity.GetString(Android.Resource.String.No), new EventHandler<DialogClickEventArgs>((dlgSender, dlgEvt) => 
+				                                                                                                                   {
+
+				}));
+				
+
+				Dialog dialog = builder.Create();
+				dialog.Show();
+			}
+		}
 		
-		public void LoadData (Context ctx, IOConnectionInfo iocInfo, String password, String keyfile, UpdateStatus status)
+		public void LoadData(Context ctx, IOConnectionInfo iocInfo, String password, String keyfile, UpdateStatus status)
 		{
 			mIoc = iocInfo;
 
-			KeePassLib.PwDatabase pwDatabase = new KeePassLib.PwDatabase ();
+			KeePassLib.PwDatabase pwDatabase = new KeePassLib.PwDatabase();
 
-			KeePassLib.Keys.CompositeKey key = new KeePassLib.Keys.CompositeKey ();
-			key.AddUserKey (new KeePassLib.Keys.KcpPassword (password));
-			if (!String.IsNullOrEmpty (keyfile)) {
+			KeePassLib.Keys.CompositeKey key = new KeePassLib.Keys.CompositeKey();
+			key.AddUserKey(new KeePassLib.Keys.KcpPassword(password));
+			if (!String.IsNullOrEmpty(keyfile))
+			{
 
-				try { key.AddUserKey(new KeePassLib.Keys.KcpKeyFile(keyfile)); }
-				catch(Exception)
+				try
+				{
+					key.AddUserKey(new KeePassLib.Keys.KcpKeyFile(keyfile));
+				} catch (Exception)
 				{
 					throw new KeyFileException();
 				}
@@ -94,6 +140,14 @@ namespace keepass2android
 			
 			pwDatabase.Open(iocInfo, key, status);
 
+			if (iocInfo.IsLocalFile())
+			{
+				mLastChangeDate = System.IO.File.GetLastWriteTimeUtc(iocInfo.Path);
+			} else
+			{
+				mLastChangeDate  = DateTime.MinValue;
+			}
+
 			root = pwDatabase.RootGroup;
 			populateGlobals(root);
 
@@ -210,6 +264,7 @@ namespace keepass2android
 			mIoc = null;
 			loaded = false;
 			locked = false;
+			mReloadRequested = false;
 		}
 		
 		public void markAllGroupsAsDirty() {

src/keepass2android/KeePass.cs

@@ -47,6 +47,7 @@ namespace keepass2android
 		public const Android.App.Result EXIT_CLOSE_AFTER_SEARCH = Android.App.Result.FirstUser+6;
 		public const Android.App.Result EXIT_CHANGE_DB = Android.App.Result.FirstUser+7;
 		public const Android.App.Result EXIT_FORCE_LOCK_AND_CHANGE_DB = Android.App.Result.FirstUser+8;
+		public const Android.App.Result EXIT_RELOAD_DB = Android.App.Result.FirstUser+9;
 
 		protected override void OnCreate (Bundle bundle)
 		{

src/keepass2android/LockCloseActivity.cs

@@ -40,10 +40,15 @@ namespace keepass2android
 			mIoc = App.getDB().mIoc;
 		}
 
-		protected override void OnResume() {
+
+		protected override void OnResume()
+		{
 			base.OnResume();
-			
-			TimeoutHelper.checkShutdown(this, mIoc);
+
+			if (TimeoutHelper.checkShutdown(this, mIoc))
+				return;
+
+			App.getDB().CheckForOpenFileChanged(this);
 		}
 
 		

src/keepass2android/LockCloseListActivity.cs

@@ -50,12 +50,17 @@ namespace keepass2android
 		{
 			
 		}
-
-		protected override void OnResume() {
+			
+		protected override void OnResume()
+		{
 			base.OnResume();
 			
-			TimeoutHelper.checkShutdown(this, mIoc);
+			if (TimeoutHelper.checkShutdown(this, mIoc))
+				return;
+			
+			App.getDB().CheckForOpenFileChanged(this);
 		}
+
 	}
 }
 

src/keepass2android/PasswordActivity.cs

@@ -239,7 +239,29 @@ namespace keepass2android
 					App.getDB().Locked = false;
 					LaunchNextActivity();
 					break;
+				case KeePass.EXIT_RELOAD_DB:
+					//if the activity was killed, fill password/keyfile so the user can directly hit load again
+					if (App.getDB().Loaded)
+					{
+						if (App.getDB().pm.MasterKey.ContainsType(typeof(KcpPassword)))
+						{
 
+							KcpPassword kcpPassword = (KcpPassword)App.getDB().pm.MasterKey.GetUserKey(typeof(KcpPassword));
+							String password = kcpPassword.Password.ReadString();
+
+							setEditText(Resource.Id.password, password);
+						
+						}
+						if (App.getDB().pm.MasterKey.ContainsType(typeof(KcpKeyFile)))
+						{
+							
+							KcpKeyFile kcpKeyfile = (KcpKeyFile)App.getDB().pm.MasterKey.GetUserKey(typeof(KcpKeyFile));
+
+							setEditText(Resource.Id.pass_keyfile, kcpKeyfile.Path);
+						}
+					}
+					unloadDatabase();
+					break;
 				case Android.App.Result.Ok:
 					if (requestCode == Intents.REQUEST_CODE_FILE_BROWSE) {
 						String filename = data.DataString;

src/keepass2android/Resources/Resource.designer.cs

@@ -1021,6 +1021,12 @@ namespace keepass2android
 			// aapt resource value: 0x7f0500eb
 			public const int AskOverwriteBinary_yes = 2131034347;
 			
+			// aapt resource value: 0x7f0500f3
+			public const int AskReloadFile = 2131034355;
+			
+			// aapt resource value: 0x7f0500f2
+			public const int AskReloadFile_title = 2131034354;
+			
 			// aapt resource value: 0x7f0500ed
 			public const int AttachFailed = 2131034349;
 			

src/keepass2android/Resources/values/strings.xml

@@ -212,6 +212,8 @@
   <string name="AskDeletePermanentlyEntry">Do you want to delete this entry permanently? Press No to recycle.</string>
   <string name="AskDeletePermanentlyGroup">Do you want to delete this group permanently? Press No to recycle.</string>
   <string name="AskDeletePermanently_title">Delete permanently?</string>
+  <string name="AskReloadFile_title">Reload file?</string>
+  <string name="AskReloadFile">The file which is currently open was changed by another program. Do you want to reload it?</string>
   <string-array name="clipboard_timeout_options">
     <item>30 seconds</item>
     <item>1 minute</item>

src/keepass2android/database/edit/SaveDB.cs

@@ -53,6 +53,8 @@ namespace keepass2android
 			if (! mDontSave) {
 				try {
 					mDb.SaveData (mCtx);
+					if (mDb.mIoc.IsLocalFile())
+						mDb.mLastChangeDate = System.IO.File.GetLastWriteTimeUtc(mDb.mIoc.Path);
 				} catch (Exception e) {
 					/* TODO KPDesktop:
 					 * catch(Exception exSave)

src/keepass2android/timeout/TimeoutHelper.cs

@@ -91,13 +91,15 @@ namespace keepass2android
 			return ioc.GetDisplayName() != other.GetDisplayName();
 		}
 		
-		public static void checkShutdown(Activity act, IOConnectionInfo ioc) {
+		public static bool checkShutdown(Activity act, IOConnectionInfo ioc) {
 			if ((  App.getDB().Loaded && (App.isShutdown() || App.getDB().Locked) ) 
 			    || (iocChanged(ioc, App.getDB().mIoc))) //file was changed from ActionSend-Intent
 			{
 				act.SetResult(KeePass.EXIT_LOCK);
 				act.Finish();
+				return true;
 			}
+			return false;
 		}
 	}
 }