keepass2android/src/Kp2aBusinessLogic/SelectStorageLocationActivityBase.cs
Philipp Crocoll 15f73257fa 0.9.8-pre2
2015-08-12 06:40:14 +02:00

341 lines
9.8 KiB
C#

using System;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Widget;
using Java.Net;
using KeePassLib.Serialization;
using keepass2android.Io;
namespace keepass2android
{
/// <summary>
/// base class for SelectStorageLocationActivity containing testable (non-UI) code
/// </summary>
public abstract class SelectStorageLocationActivityBase: Activity
{
public enum WritableRequirements
{
ReadOnly = 0,
WriteDesired = 1,
WriteDemanded = 2
}
protected const int RequestCodeFileStorageSelectionForPrimarySelect = 33713;
private const int RequestCodeFileStorageSelectionForCopyToWritableLocation = 33714;
private const int RequestCodeFileFileBrowseForWritableLocation = 33715;
private const int RequestCodeFileBrowseForOpen = 33716;
protected IOConnectionInfo _selectedIoc;
private IKp2aApp _app;
public SelectStorageLocationActivityBase(IKp2aApp app)
{
_app = app;
}
protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
Kp2aLog.Log("base.onAR");
base.OnActivityResult(requestCode, resultCode, data);
if ((requestCode == RequestCodeFileStorageSelectionForPrimarySelect) || ((requestCode == RequestCodeFileStorageSelectionForCopyToWritableLocation)))
{
int browseRequestCode = RequestCodeFileBrowseForOpen;
if (requestCode == RequestCodeFileStorageSelectionForCopyToWritableLocation)
{
browseRequestCode = RequestCodeFileFileBrowseForWritableLocation;
}
if (resultCode == ExitFileStorageSelectionOk)
{
string protocolId = data.GetStringExtra("protocolId");
if (protocolId == "androidget")
{
ShowAndroidBrowseDialog(browseRequestCode, false, false);
}
else if (protocolId == "content")
{
ShowAndroidBrowseDialog(browseRequestCode, browseRequestCode == RequestCodeFileFileBrowseForWritableLocation, true);
}
else
{
bool isForSave = (requestCode == RequestCodeFileStorageSelectionForPrimarySelect) ?
IsStorageSelectionForSave : true;
StartSelectFile(isForSave, browseRequestCode, protocolId);
}
}
else
{
ReturnCancel();
}
}
if ((requestCode == RequestCodeFileBrowseForOpen) || (requestCode == RequestCodeFileFileBrowseForWritableLocation))
{
if (resultCode == (Result)FileStorageResults.FileChooserPrepared)
{
IOConnectionInfo ioc = new IOConnectionInfo();
SetIoConnectionFromIntent(ioc, data);
bool isForSave = (requestCode == RequestCodeFileFileBrowseForWritableLocation) ?
true : IsStorageSelectionForSave;
StartFileChooser(ioc.Path, requestCode, isForSave);
return;
}
if ((resultCode == Result.Canceled) && (data != null) && (data.HasExtra("EXTRA_ERROR_MESSAGE")))
{
ShowToast(data.GetStringExtra("EXTRA_ERROR_MESSAGE"));
}
if (resultCode == Result.Ok)
{
Kp2aLog.Log("FileSelection returned "+data.DataString);
//TODO: don't try to extract filename if content URI
string filename = IntentToFilename(data);
Kp2aLog.Log("FileSelection returned filename " + filename);
if (filename != null)
{
if (filename.StartsWith("file://"))
{
filename = filename.Substring(7);
filename = URLDecoder.Decode(filename);
}
IOConnectionInfo ioc = new IOConnectionInfo
{
Path = filename
};
IocSelected(ioc, requestCode);
}
else
{
if (data.Data.Scheme == "content")
{
if ((int) Build.VERSION.SdkInt >= 19)
{
//try to take persistable permissions
try
{
Kp2aLog.Log("TakePersistableUriPermission");
var takeFlags = data.Flags
& (ActivityFlags.GrantReadUriPermission
| ActivityFlags.GrantWriteUriPermission);
this.ContentResolver.TakePersistableUriPermission(data.Data, takeFlags);
}
catch (Exception e)
{
Kp2aLog.Log(e.ToString());
}
}
IocSelected(IOConnectionInfo.FromPath(data.DataString), requestCode);
}
else
{
ShowInvalidSchemeMessage(data.DataString);
ReturnCancel();
}
}
}
else
{
ReturnCancel();
}
}
}
protected abstract void ShowToast(string text);
protected abstract void ShowInvalidSchemeMessage(string dataString);
protected abstract string IntentToFilename(Intent data);
protected abstract void SetIoConnectionFromIntent(IOConnectionInfo ioc, Intent data);
protected abstract Result ExitFileStorageSelectionOk { get; }
/// <summary>
/// Starts the appropriate file selection process (either manual file select or prepare filechooser + filechooser)
/// </summary>
/// <param name="isForSave"></param>
/// <param name="browseRequestCode"></param>
/// <param name="protocolId"></param>
protected abstract void StartSelectFile(bool isForSave, int browseRequestCode, string protocolId);
protected abstract void ShowAndroidBrowseDialog(int requestCode, bool isForSave, bool tryGetPermanentAccess);
protected abstract bool IsStorageSelectionForSave { get; }
private void IocSelected(IOConnectionInfo ioc, int requestCode)
{
if (requestCode == RequestCodeFileFileBrowseForWritableLocation)
{
IocForCopySelected(ioc);
}
else if (requestCode == RequestCodeFileBrowseForOpen)
{
PrimaryIocSelected(ioc);
}
else
{
#if DEBUG
throw new Exception("invalid request code!");
#endif
}
}
private void IocForCopySelected(IOConnectionInfo targetIoc)
{
PerformCopy(() =>
{
IOConnectionInfo sourceIoc = _selectedIoc;
try
{
CopyFile(targetIoc, sourceIoc);
}
catch (Exception e)
{
return () =>
{
ShowToast(_app.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message);
ReturnCancel();
};
}
return () => { ReturnOk(targetIoc); };
});
}
protected abstract void PerformCopy(Func<Action> copyAndReturnPostExecute);
private void MoveToWritableLocation(IOConnectionInfo ioc)
{
_selectedIoc = ioc;
StartFileStorageSelection(RequestCodeFileStorageSelectionForCopyToWritableLocation, false, false);
}
protected abstract void StartFileStorageSelection(int requestCode,
bool allowThirdPartyGet, bool allowThirdPartySend);
protected bool OnReceivedSftpData(string filename, int requestCode, bool isForSave)
{
IOConnectionInfo ioc = new IOConnectionInfo { Path = filename };
#if !EXCLUDE_FILECHOOSER
StartFileChooser(ioc.Path, requestCode, isForSave);
#else
IocSelected(ioc, requestCode);
#endif
return true;
}
protected abstract void StartFileChooser(string path, int requestCode, bool isForSave);
protected bool OnOpenButton(string fileName, int requestCode, Action dismissDialog)
{
IOConnectionInfo ioc = new IOConnectionInfo
{
Path = fileName
};
int lastSlashPos = fileName.LastIndexOf('/');
int lastDotPos = fileName.LastIndexOf('.');
if (lastSlashPos >= lastDotPos) //no dot after last slash or == in case neither / nor .
{
ShowFilenameWarning(fileName, () => { IocSelected(ioc, requestCode); dismissDialog(); }, () => { /* don't do anything, leave dialog open, let user try again*/ });
//signal that the dialog should be kept open
return false;
}
IocSelected(ioc, requestCode);
return true;
}
protected abstract void ShowFilenameWarning(string fileName, Action onUserWantsToContinue, Action onUserWantsToCorrect);
protected virtual void CopyFile(IOConnectionInfo targetIoc, IOConnectionInfo sourceIoc)
{
IoUtil.Copy(targetIoc, sourceIoc, _app);
}
private void PrimaryIocSelected(IOConnectionInfo ioc)
{
var filestorage = _app.GetFileStorage(ioc, false);
if (!filestorage.IsPermanentLocation(ioc))
{
string message = _app.GetResourceString(UiStringKey.FileIsTemporarilyAvailable) + " " + _app.GetResourceString(UiStringKey.CopyFileRequired) + " " + _app.GetResourceString(UiStringKey.ClickOkToSelectLocation);
EventHandler<DialogClickEventArgs> onOk = (sender, args) => { MoveToWritableLocation(ioc); };
EventHandler<DialogClickEventArgs> onCancel = (sender, args) => { ReturnCancel(); };
ShowAlertDialog(message, onOk, onCancel);
return;
}
if ((RequestedWritableRequirements != WritableRequirements.ReadOnly) && (filestorage.IsReadOnly(ioc)))
{
string readOnlyExplanation = _app.GetResourceString(UiStringKey.FileIsReadOnly);
BuiltInFileStorage builtInFileStorage = filestorage as BuiltInFileStorage;
if (builtInFileStorage != null)
{
if (builtInFileStorage.IsReadOnlyBecauseKitkatRestrictions(ioc))
readOnlyExplanation = _app.GetResourceString(UiStringKey.FileIsReadOnlyOnKitkat);
}
EventHandler<DialogClickEventArgs> onOk = (sender, args) => { MoveToWritableLocation(ioc); };
EventHandler<DialogClickEventArgs> onCancel = (sender, args) =>
{
if (RequestedWritableRequirements == WritableRequirements.WriteDemanded)
ReturnCancel();
else
ReturnOk(ioc);
};
ShowAlertDialog(readOnlyExplanation + " "
+ (RequestedWritableRequirements == WritableRequirements.WriteDemanded ?
_app.GetResourceString(UiStringKey.CopyFileRequired)
: _app.GetResourceString(UiStringKey.CopyFileRequiredForEditing))
+ " "
+ _app.GetResourceString(UiStringKey.ClickOkToSelectLocation), onOk, onCancel);
return;
}
ReturnOk(ioc);
}
protected abstract void ShowAlertDialog(string message, EventHandler<DialogClickEventArgs> onOk, EventHandler<DialogClickEventArgs> onCancel);
protected abstract WritableRequirements RequestedWritableRequirements { get; }
protected abstract void ReturnOk(IOConnectionInfo ioc);
protected abstract void ReturnCancel();
}
}