public async Task <bool> CreateNewNamedPipe()
{
try
{
if (ClientStream != null)
{
return(true);
}
if (WindowsVersionChecker.IsNewerOrEqual(WindowsVersionChecker.Version.Windows10_2004))
{
await FullTrustExcutorController.Current.RequestCreateNewPipeLine(GUID).ConfigureAwait(true);
PipeHandle = WIN_Native_API.GetHandleFromNamedPipe($"Explorer_And_FullTrustProcess_NamedPipe-{GUID}");
ClientStream = new NamedPipeClientStream(PipeDirection.InOut, false, true, PipeHandle);
return(true);
}
else
{
return(false);
}
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
return(false);
}
}
public async virtual Task <FileStream> GetFileStreamFromFileAsync(AccessMode Mode)
{
try
{
if (WIN_Native_API.CreateFileStreamFromExistingPath(Path, Mode) is FileStream Stream)
{
return(Stream);
}
else
{
if (await GetStorageItemAsync().ConfigureAwait(true) is StorageFile File)
{
SafeFileHandle Handle = File.GetSafeFileHandle();
return(new FileStream(Handle, FileAccess.ReadWrite));
}
else
{
return(null);
}
}
}
catch (Exception ex)
{
LogTracer.Log(ex, "Could not create a new file stream");
return(null);
}
}
public override async Task <IStorageItem> GetStorageItem()
{
if (StorageItem == null)
{
try
{
Package = await FullTrustProcessController.Current.GetHyperlinkRelatedInformationAsync(InternalPathString).ConfigureAwait(false);
if (WIN_Native_API.CheckExist(LinkTargetPath))
{
if (WIN_Native_API.CheckType(LinkTargetPath) == StorageItemTypes.Folder)
{
return(StorageItem = await StorageFolder.GetFolderFromPathAsync(LinkTargetPath));
}
else
{
return(StorageItem = await StorageFile.GetFileFromPathAsync(LinkTargetPath));
}
}
else
{
return(StorageItem = null);
}
}
catch (Exception ex)
{
LogTracer.Log(ex, $"Could not get hyperlink file, path: {InternalPathString}");
return(StorageItem = null);
}
}
else
{
return(StorageItem);
}
}
public void StopWatchDirectory()
{
if (WatchPtr != IntPtr.Zero)
{
WIN_Native_API.StopDirectoryWatcher(ref WatchPtr);
}
}
public async Task <List <FileSystemStorageItemBase> > GetChildItemsAsync(bool IncludeHiddenItems, ItemFilters Filter = ItemFilters.File | ItemFilters.Folder)
{
if (WIN_Native_API.CheckLocationAvailability(Path))
{
return(WIN_Native_API.GetStorageItems(Path, IncludeHiddenItems, Filter));
}
else
{
LogTracer.Log($"Native API could not enum subitems in path: \"{Path}\", fall back to UWP storage API");
try
{
if (await GetStorageItemAsync().ConfigureAwait(true) is StorageFolder Folder)
{
QueryOptions Options = new QueryOptions
{
FolderDepth = FolderDepth.Shallow,
IndexerOption = IndexerOption.UseIndexerWhenAvailable
};
Options.SetThumbnailPrefetch(Windows.Storage.FileProperties.ThumbnailMode.ListView, 150, Windows.Storage.FileProperties.ThumbnailOptions.UseCurrentScale);
Options.SetPropertyPrefetch(Windows.Storage.FileProperties.PropertyPrefetchOptions.BasicProperties, new string[] { "System.Size", "System.DateModified" });
StorageItemQueryResult Query = Folder.CreateItemQueryWithOptions(Options);
uint Count = await Query.GetItemCountAsync();
List <FileSystemStorageItemBase> Result = new List <FileSystemStorageItemBase>(Convert.ToInt32(Count));
for (uint i = 0; i < Count; i += 30)
{
IReadOnlyList <IStorageItem> CurrentList = await Query.GetItemsAsync(i, 30);
foreach (IStorageItem Item in CurrentList.Where((Item) => (Item.IsOfType(StorageItemTypes.Folder) && Filter.HasFlag(ItemFilters.Folder)) || (Item.IsOfType(StorageItemTypes.File) && Filter.HasFlag(ItemFilters.File))))
{
if (Item is StorageFolder SubFolder)
{
Result.Add(new FileSystemStorageFolder(SubFolder, await SubFolder.GetThumbnailBitmapAsync().ConfigureAwait(true), await SubFolder.GetModifiedTimeAsync().ConfigureAwait(true)));
}
else if (Item is StorageFile SubFile)
{
Result.Add(new FileSystemStorageFile(SubFile, await SubFile.GetThumbnailBitmapAsync().ConfigureAwait(true), await SubFile.GetSizeRawDataAsync().ConfigureAwait(true), await SubFile.GetModifiedTimeAsync().ConfigureAwait(true)));
}
}
}
return(Result);
}
else
{
return(new List <FileSystemStorageItemBase>(0));
}
}
catch
{
LogTracer.Log($"UWP API could not enum subitems in path: \"{Path}\"");
return(new List <FileSystemStorageItemBase>(0));
}
}
}
public async Task <ulong> GetFolderSizeAsync(CancellationToken CancelToken = default)
{
if (WIN_Native_API.CheckLocationAvailability(Path))
{
return(await Task.Run(() =>
{
return WIN_Native_API.CalulateSize(Path, CancelToken);
}));
}
else
{
try
{
LogTracer.Log($"Native API could not found the path: \"{Path}\", fall back to UWP storage API");
if (await GetStorageItemAsync() is StorageFolder Folder)
{
QueryOptions Options = new QueryOptions
{
FolderDepth = FolderDepth.Deep,
IndexerOption = IndexerOption.UseIndexerWhenAvailable
};
Options.SetPropertyPrefetch(Windows.Storage.FileProperties.PropertyPrefetchOptions.BasicProperties, new string[] { "System.Size" });
StorageFileQueryResult Query = Folder.CreateFileQueryWithOptions(Options);
uint FileCount = await Query.GetItemCountAsync();
ulong TotalSize = 0;
for (uint Index = 0; Index < FileCount && !CancelToken.IsCancellationRequested; Index += 50)
{
foreach (StorageFile File in await Query.GetFilesAsync(Index, 50))
{
TotalSize += await File.GetSizeRawDataAsync().ConfigureAwait(false);
if (CancelToken.IsCancellationRequested)
{
break;
}
}
}
return(TotalSize);
}
else
{
return(0);
}
}
catch (Exception ex)
{
LogTracer.Log(ex, $"{nameof(GetFolderSizeAsync)} failed for uwp API");
return(0);
}
}
}
public void StartWatchDirectory(string Path)
{
if (!string.IsNullOrWhiteSpace(Path))
{
CurrentLocation = Path;
StopWatchDirectory();
WatchPtr = WIN_Native_API.CreateDirectoryWatcher(Path, Added, Removed, Renamed, Modified);
}
}
public static async Task <FileSystemStorageItemBase> OpenAsync(string Path)
{
if (System.IO.Path.GetPathRoot(Path) != Path && WIN_Native_API.GetStorageItem(Path) is FileSystemStorageItemBase Item)
{
return(Item);
}
else
{
LogTracer.Log($"Native API could not found the path: \"{Path}\", fall back to UWP storage API");
try
{
string DirectoryPath = System.IO.Path.GetDirectoryName(Path);
if (string.IsNullOrEmpty(DirectoryPath))
{
StorageFolder Folder = await StorageFolder.GetFolderFromPathAsync(Path);
return(new FileSystemStorageFolder(Folder, await Folder.GetThumbnailBitmapAsync(), await Folder.GetModifiedTimeAsync()));
}
else
{
StorageFolder ParentFolder = await StorageFolder.GetFolderFromPathAsync(DirectoryPath);
switch (await ParentFolder.TryGetItemAsync(System.IO.Path.GetFileName(Path)))
{
case StorageFolder Folder:
{
return(new FileSystemStorageFolder(Folder, await Folder.GetThumbnailBitmapAsync(), await Folder.GetModifiedTimeAsync()));
}
case StorageFile File:
{
return(new FileSystemStorageFile(File, await File.GetThumbnailBitmapAsync(), await File.GetSizeRawDataAsync(), await File.GetModifiedTimeAsync()));
}
default:
{
LogTracer.Log($"UWP storage API could not found the path: \"{Path}\"");
return(null);
}
}
}
}
catch (Exception ex)
{
LogTracer.Log(ex, $"UWP storage API could not found the path: \"{Path}\"");
return(null);
}
}
}
public static async Task <FileSystemStorageItemBase> OpenAsync(string Path)
{
if (WIN_Native_API.CheckLocationAvailability(System.IO.Path.GetDirectoryName(Path)))
{
return(WIN_Native_API.GetStorageItem(Path));
}
else
{
LogTracer.Log($"Native API could not found the path: \"{Path}\", fall back to UWP storage API");
try
{
string DirectoryPath = System.IO.Path.GetDirectoryName(Path);
if (string.IsNullOrEmpty(DirectoryPath))
{
StorageFolder Folder = await StorageFolder.GetFolderFromPathAsync(Path);
return(await CreateFromStorageItemAsync(Folder));
}
else
{
StorageFolder ParentFolder = await StorageFolder.GetFolderFromPathAsync(DirectoryPath);
switch (await ParentFolder.TryGetItemAsync(System.IO.Path.GetFileName(Path)))
{
case StorageFolder Folder:
{
return(await CreateFromStorageItemAsync(Folder));
}
case StorageFile File:
{
return(await CreateFromStorageItemAsync(File));
}
default:
{
LogTracer.Log($"UWP storage API could not found the path: \"{Path}\"");
return(null);
}
}
}
}
catch (Exception ex)
{
LogTracer.Log(ex, $"UWP storage API could not found the path: \"{Path}\"");
return(null);
}
}
}
public RecycleStorageItem(string ActualPath, string OriginPath, StorageItemTypes StorageType, DateTimeOffset CreateTime)
{
this.OriginPath = OriginPath;
this.StorageType = StorageType;
ModifiedTimeRaw = CreateTime.ToLocalTime();
if (StorageType == StorageItemTypes.File)
{
SizeRaw = WIN_Native_API.CalculateFileSize(ActualPath);
}
InternalPathString = ActualPath;
}
public void StartWatchDirectory(string Path)
{
if (!string.IsNullOrWhiteSpace(Path))
{
CurrentLocation = Path;
if (WatchPtr != IntPtr.Zero)
{
WIN_Native_API.StopDirectoryWatcher(ref WatchPtr);
}
WatchPtr = WIN_Native_API.CreateDirectoryWatcher(Path, Added, Removed, Renamed, Modified);
}
}
public override Task Update()
{
if (WIN_Native_API.GetStorageItems(InternalPathString).FirstOrDefault() is HyperlinkStorageItem HItem)
{
SizeRaw = HItem.SizeRaw;
ModifiedTimeRaw = HItem.ModifiedTimeRaw;
}
OnPropertyChanged(nameof(Name));
OnPropertyChanged(nameof(ModifiedTime));
OnPropertyChanged(nameof(DisplayType));
OnPropertyChanged(nameof(Size));
return(Task.CompletedTask);
}
public static async Task UpdateAllSubNodeAsync(this TreeViewNode Node)
{
if (Node == null)
{
throw new ArgumentNullException(nameof(Node), "Node could not be null");
}
if (Node.Children.Count > 0)
{
List <string> FolderList = WIN_Native_API.GetStorageItemsAndReturnPath((Node.Content as TreeViewNodeContent).Path, SettingControl.IsDisplayHiddenItem, ItemFilters.Folder);
List <string> PathList = Node.Children.Select((Item) => (Item.Content as TreeViewNodeContent).Path).ToList();
List <string> AddList = FolderList.Except(PathList).ToList();
List <string> RemoveList = PathList.Except(FolderList).ToList();
foreach (string AddPath in AddList)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Low, () =>
{
Node.Children.Add(new TreeViewNode
{
Content = new TreeViewNodeContent(AddPath),
HasUnrealizedChildren = WIN_Native_API.CheckContainsAnyItem(AddPath, ItemFilters.Folder),
IsExpanded = false
});
});
}
foreach (string RemovePath in RemoveList)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Low, () =>
{
if (Node.Children.Where((Item) => Item.Content is TreeViewNodeContent).FirstOrDefault((Item) => (Item.Content as TreeViewNodeContent).Path.Equals(RemovePath, StringComparison.OrdinalIgnoreCase)) is TreeViewNode RemoveNode)
{
Node.Children.Remove(RemoveNode);
}
});
}
foreach (TreeViewNode SubNode in Node.Children)
{
await SubNode.UpdateAllSubNodeAsync().ConfigureAwait(true);
}
}
else
{
Node.HasUnrealizedChildren = WIN_Native_API.CheckContainsAnyItem((Node.Content as TreeViewNodeContent).Path, ItemFilters.Folder);
}
}
public override async Task Replace(string NewPath)
{
if (WIN_Native_API.GetStorageItems(NewPath).FirstOrDefault() is HyperlinkStorageItem HItem)
{
InternalPathString = HItem.Path;
SizeRaw = HItem.SizeRaw;
ModifiedTimeRaw = HItem.ModifiedTimeRaw;
StorageItem = null;
_ = await GetStorageItem().ConfigureAwait(true);
}
OnPropertyChanged(nameof(Name));
OnPropertyChanged(nameof(DisplayType));
OnPropertyChanged(nameof(Size));
OnPropertyChanged(nameof(ModifiedTime));
}
public async Task <List <RecycleStorageItem> > GetRecycleBinItemsAsync()
{
try
{
IsNowHasAnyActionExcuting = true;
if (await TryConnectToFullTrustExutor().ConfigureAwait(true))
{
ValueSet Value = new ValueSet
{
{ "ExcuteType", ExcuteType_Get_RecycleBinItems }
};
AppServiceResponse Response = await Connection.SendMessageAsync(Value);
if (Response.Status == AppServiceResponseStatus.Success && !Response.Message.ContainsKey("Error") && !string.IsNullOrEmpty(Convert.ToString(Response.Message["RecycleBinItems_Json_Result"])))
{
List <Dictionary <string, string> > Items = JsonConvert.DeserializeObject <List <Dictionary <string, string> > >(Convert.ToString(Response.Message["RecycleBinItems_Json_Result"]));
List <RecycleStorageItem> Result = new List <RecycleStorageItem>(Items.Count);
foreach (Dictionary <string, string> PropertyDic in Items)
{
FileSystemStorageItem Item = WIN_Native_API.GetStorageItems(PropertyDic["ActualPath"]).FirstOrDefault();
Result.Add(new RecycleStorageItem(Item, PropertyDic["OriginPath"], DateTime.FromBinary(Convert.ToInt64(PropertyDic["CreateTime"]))));
}
return(Result);
}
else
{
return(new List <RecycleStorageItem>(0));
}
}
else
{
return(new List <RecycleStorageItem>(0));
}
}
catch
{
return(new List <RecycleStorageItem>(0));
}
finally
{
IsNowHasAnyActionExcuting = false;
}
}
public static async Task <bool> CheckExistAsync(string Path)
{
if (!string.IsNullOrEmpty(Path) && System.IO.Path.IsPathRooted(Path))
{
if (WIN_Native_API.CheckLocationAvailability(System.IO.Path.GetDirectoryName(Path)))
{
return(WIN_Native_API.CheckExist(Path));
}
else
{
try
{
string DirectoryPath = System.IO.Path.GetDirectoryName(Path);
if (string.IsNullOrEmpty(DirectoryPath))
{
await StorageFolder.GetFolderFromPathAsync(Path);
return(true);
}
else
{
StorageFolder Folder = await StorageFolder.GetFolderFromPathAsync(DirectoryPath);
if (await Folder.TryGetItemAsync(System.IO.Path.GetFileName(Path)) != null)
{
return(true);
}
else
{
return(false);
}
}
}
catch (Exception ex)
{
LogTracer.Log(ex, "CheckExist threw an exception");
return(false);
}
}
}
else
{
return(false);
}
}
public async Task <bool> CreateNewNamedPipeAsync()
{
try
{
if (ClientStream != null)
{
if (!ClientStream.IsConnected)
{
ClientStream.Dispose();
ClientStream = null;
PipeHandle.Dispose();
PipeHandle = null;
GUID = Guid.NewGuid();
}
else
{
return(true);
}
}
if (WindowsVersionChecker.IsNewerOrEqual(Version.Windows10_2004))
{
await Controller.RequestCreateNewPipeLineAsync(GUID).ConfigureAwait(true);
PipeHandle = WIN_Native_API.GetHandleFromNamedPipe($"Explorer_And_FullTrustProcess_NamedPipe-{GUID}");
ClientStream = new NamedPipeClientStream(PipeDirection.InOut, false, true, PipeHandle);
return(true);
}
else
{
return(false);
}
}
catch (Exception ex)
{
LogTracer.Log(ex, $"{ nameof(CreateNewNamedPipeAsync)} throw an error");
return(false);
}
}
public async Task <bool> CheckContainsAnyItemAsync(bool IncludeHiddenItem = false, bool IncludeSystemItem = false, ItemFilters Filter = ItemFilters.File | ItemFilters.Folder)
{
if (WIN_Native_API.CheckLocationAvailability(Path))
{
return(await Task.Run(() =>
{
return WIN_Native_API.CheckContainsAnyItem(Path, IncludeHiddenItem, IncludeSystemItem, Filter);
}));
}
else
{
LogTracer.Log($"Native API could not found the path: \"{Path}\", fall back to UWP storage API");
try
{
if (await GetStorageItemAsync() is StorageFolder Folder)
{
if (Filter.HasFlag(ItemFilters.File))
{
return((await Folder.GetFilesAsync(CommonFileQuery.DefaultQuery, 0, 1)).Any());
}
if (Filter.HasFlag(ItemFilters.Folder))
{
return((await Folder.GetFoldersAsync(CommonFolderQuery.DefaultQuery, 0, 1)).Any());
}
}
return(false);
}
catch (Exception ex)
{
LogTracer.Log(ex, $"{nameof(CheckContainsAnyItemAsync)} failed for uwp API");
return(false);
}
}
}
private async void Modified(string Path)
{
if (!WIN_Native_API.CheckIfHidden(Path) || IsDisplayHiddenItem)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Low, async() =>
{
await Locker.WaitAsync().ConfigureAwait(true);
try
{
if (CurrentCollection.FirstOrDefault((Item) => Item.Path.Equals(Path, StringComparison.OrdinalIgnoreCase)) is FileSystemStorageItemBase Item)
{
await Item.Update().ConfigureAwait(false);
}
}
catch (Exception ex)
{
LogTracer.Log(ex, $"{ nameof(StorageAreaWatcher)}: Modify item to collection failed");
}
finally
{
Locker.Release();
}
});
public async IAsyncEnumerable <FileSystemStorageItemBase> SearchAsync(string SearchWord, bool SearchInSubFolders = false, bool IncludeHiddenItem = false, bool IsRegexExpresstion = false, bool IgnoreCase = true, [EnumeratorCancellation] CancellationToken CancelToken = default)
{
if (WIN_Native_API.CheckLocationAvailability(Path))
{
List <FileSystemStorageItemBase> SearchResult = await Task.Run(() =>
{
return(WIN_Native_API.Search(Path, SearchWord, SearchInSubFolders, IncludeHiddenItem, IsRegexExpresstion, IgnoreCase, CancelToken));
});
foreach (FileSystemStorageItemBase Item in SearchResult)
{
yield return(Item);
if (CancelToken.IsCancellationRequested)
{
yield break;
}
}
}
else
{
if (await GetStorageItemAsync().ConfigureAwait(true) is StorageFolder Folder)
{
QueryOptions Options = new QueryOptions
{
FolderDepth = SearchInSubFolders ? FolderDepth.Deep : FolderDepth.Shallow,
IndexerOption = IndexerOption.UseIndexerWhenAvailable
};
Options.SetThumbnailPrefetch(Windows.Storage.FileProperties.ThumbnailMode.ListView, 150, Windows.Storage.FileProperties.ThumbnailOptions.UseCurrentScale);
Options.SetPropertyPrefetch(Windows.Storage.FileProperties.PropertyPrefetchOptions.BasicProperties, new string[] { "System.Size", "System.DateModified" });
if (!IsRegexExpresstion)
{
Options.ApplicationSearchFilter = $"System.FileName:*{SearchWord}*";
}
StorageItemQueryResult Query = Folder.CreateItemQueryWithOptions(Options);
uint FileCount = await Query.GetItemCountAsync();
for (uint Index = 0; Index < FileCount && !CancelToken.IsCancellationRequested; Index += 50)
{
IEnumerable <IStorageItem> Result = IsRegexExpresstion
? (await Query.GetItemsAsync(Index, 50)).Where((Item) => Regex.IsMatch(Item.Name, SearchWord, IgnoreCase ? RegexOptions.IgnoreCase : RegexOptions.None))
: (await Query.GetItemsAsync(Index, 50)).Where((Item) => Item.Name.Contains(SearchWord, IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal));
foreach (IStorageItem Item in Result)
{
switch (Item)
{
case StorageFolder SubFolder:
{
yield return(new FileSystemStorageFolder(SubFolder, await SubFolder.GetThumbnailBitmapAsync().ConfigureAwait(true), await SubFolder.GetModifiedTimeAsync().ConfigureAwait(true)));
break;
}
case StorageFile SubFile:
{
yield return(new FileSystemStorageFile(SubFile, await SubFile.GetThumbnailBitmapAsync().ConfigureAwait(true), await SubFile.GetSizeRawDataAsync().ConfigureAwait(true), await SubFile.GetModifiedTimeAsync().ConfigureAwait(true)));
break;
}
}
if (CancelToken.IsCancellationRequested)
{
yield break;
}
}
}
}
}
}
public override async IAsyncEnumerable <FileSystemStorageItemBase> SearchAsync(string SearchWord, bool SearchInSubFolders = false, bool IncludeHiddenItem = false, bool IncludeSystemItem = false, bool IsRegexExpresstion = false, bool IgnoreCase = true, [EnumeratorCancellation] CancellationToken CancelToken = default)
{
foreach (DriveDataBase Drive in CommonAccessCollection.DriveList)
{
if (WIN_Native_API.CheckLocationAvailability(Drive.Path))
{
foreach (FileSystemStorageItemBase Item in await Task.Factory.StartNew(() => WIN_Native_API.Search(Drive.Path, SearchWord, SearchInSubFolders, IncludeHiddenItem, IncludeSystemItem, IsRegexExpresstion, IgnoreCase, CancelToken), TaskCreationOptions.LongRunning))
{
yield return(Item);
}
}
else
{
if (Drive.DriveFolder != null)
{
QueryOptions Options = new QueryOptions
{
FolderDepth = FolderDepth.Shallow,
IndexerOption = IndexerOption.DoNotUseIndexer
};
Options.SetThumbnailPrefetch(ThumbnailMode.ListView, 150, ThumbnailOptions.UseCurrentScale);
Options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.FileName", "System.Size", "System.DateModified", "System.DateCreated" });
StorageItemQueryResult Query = Drive.DriveFolder.CreateItemQueryWithOptions(Options);
for (uint Index = 0; !CancelToken.IsCancellationRequested; Index += 50)
{
IReadOnlyList <IStorageItem> ReadOnlyItemList = await Query.GetItemsAsync(Index, 50).AsTask(CancelToken);
if (ReadOnlyItemList.Count > 0)
{
foreach (IStorageItem Item in IsRegexExpresstion
? ReadOnlyItemList.AsParallel().Where((Item) => Regex.IsMatch(Item.Name, SearchWord, IgnoreCase ? RegexOptions.IgnoreCase : RegexOptions.None))
: ReadOnlyItemList.AsParallel().Where((Item) => Item.Name.Contains(SearchWord, IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal)))
{
if (CancelToken.IsCancellationRequested)
{
yield break;
}
switch (Item)
{
case StorageFolder SubFolder:
{
yield return(await CreatedByStorageItemAsync(SubFolder));
break;
}
case StorageFile SubFile:
{
yield return(await CreatedByStorageItemAsync(SubFile));
break;
}
}
}
if (SearchInSubFolders)
{
foreach (StorageFolder Item in ReadOnlyItemList.OfType <StorageFolder>())
{
if (CancelToken.IsCancellationRequested)
{
yield break;
}
FileSystemStorageFolder FSubFolder = await CreatedByStorageItemAsync(Item);
await foreach (FileSystemStorageItemBase FSubItem in FSubFolder.SearchAsync(SearchWord, SearchInSubFolders, IncludeHiddenItem, IncludeSystemItem, IsRegexExpresstion, IgnoreCase, CancelToken))
{
if (CancelToken.IsCancellationRequested)
{
yield break;
}
yield return(FSubItem);
}
}
}
}
else
{
break;
}
}
}
}
}
}
public static async Task <FileSystemStorageItemBase> CreateAsync(string Path, StorageItemTypes ItemTypes, CreateOption Option)
{
switch (ItemTypes)
{
case StorageItemTypes.File:
{
if (WIN_Native_API.CreateFileFromPath(Path, Option, out string NewPath))
{
return(await OpenAsync(NewPath));
}
else
{
LogTracer.Log($"Native API could not create file: \"{Path}\", fall back to UWP storage API");
try
{
StorageFolder Folder = await StorageFolder.GetFolderFromPathAsync(System.IO.Path.GetDirectoryName(Path));
switch (Option)
{
case CreateOption.GenerateUniqueName:
{
StorageFile NewFile = await Folder.CreateFileAsync(System.IO.Path.GetFileName(Path), CreationCollisionOption.GenerateUniqueName);
return(await CreateFromStorageItemAsync(NewFile));
}
case CreateOption.OpenIfExist:
{
StorageFile NewFile = await Folder.CreateFileAsync(System.IO.Path.GetFileName(Path), CreationCollisionOption.OpenIfExists);
return(await CreateFromStorageItemAsync(NewFile));
}
case CreateOption.ReplaceExisting:
{
StorageFile NewFile = await Folder.CreateFileAsync(System.IO.Path.GetFileName(Path), CreationCollisionOption.ReplaceExisting);
return(await CreateFromStorageItemAsync(NewFile));
}
default:
{
return(null);
}
}
}
catch
{
LogTracer.Log($"UWP storage API could not create file: \"{Path}\"");
return(null);
}
}
}
case StorageItemTypes.Folder:
{
if (WIN_Native_API.CreateDirectoryFromPath(Path, Option, out string NewPath))
{
return(await OpenAsync(NewPath));
}
else
{
LogTracer.Log($"Native API could not create file: \"{Path}\", fall back to UWP storage API");
try
{
StorageFolder Folder = await StorageFolder.GetFolderFromPathAsync(System.IO.Path.GetDirectoryName(Path));
switch (Option)
{
case CreateOption.GenerateUniqueName:
{
StorageFolder NewFolder = await Folder.CreateFolderAsync(System.IO.Path.GetFileName(Path), CreationCollisionOption.GenerateUniqueName);
return(await CreateFromStorageItemAsync(NewFolder));
}
case CreateOption.OpenIfExist:
{
StorageFolder NewFolder = await Folder.CreateFolderAsync(System.IO.Path.GetFileName(Path), CreationCollisionOption.OpenIfExists);
return(await CreateFromStorageItemAsync(NewFolder));
}
case CreateOption.ReplaceExisting:
{
StorageFolder NewFolder = await Folder.CreateFolderAsync(System.IO.Path.GetFileName(Path), CreationCollisionOption.ReplaceExisting);
return(await CreateFromStorageItemAsync(NewFolder));
}
default:
{
return(null);
}
}
}
catch
{
LogTracer.Log($"UWP storage API could not create folder: \"{Path}\"");
return(null);
}
}
}
default:
{
return(null);
}
}
}
public async Task <FileSystemStorageItemBase> DecryptAsync(string ExportFolderPath, string Key, CancellationToken CancelToken = default)
{
if (string.IsNullOrWhiteSpace(ExportFolderPath))
{
throw new ArgumentNullException(nameof(ExportFolderPath), "ExportFolder could not be null");
}
if (string.IsNullOrEmpty(Key))
{
throw new ArgumentNullException(nameof(Key), "Key could not be null or empty");
}
using (SecureString Secure = SecureAccessProvider.GetFileEncryptionAesIV(Package.Current))
{
IntPtr Bstr = Marshal.SecureStringToBSTR(Secure);
string IV = Marshal.PtrToStringBSTR(Bstr);
string DecryptedFilePath = string.Empty;
try
{
using (AesCryptoServiceProvider AES = new AesCryptoServiceProvider
{
Mode = CipherMode.CBC,
Padding = PaddingMode.Zeros,
IV = Encoding.UTF8.GetBytes(IV)
})
{
using (FileStream EncryptFileStream = GetFileStreamFromFile(AccessMode.Read))
{
StringBuilder Builder = new StringBuilder();
using (StreamReader Reader = new StreamReader(EncryptFileStream, Encoding.UTF8, true, 64, true))
{
for (int Count = 0; Reader.Peek() >= 0; Count++)
{
if (Count > 64)
{
throw new FileDamagedException("File damaged, could not be decrypted");
}
char NextChar = (char)Reader.Read();
if (Builder.Length > 0 && NextChar == '$')
{
Builder.Append(NextChar);
break;
}
else
{
Builder.Append(NextChar);
}
}
}
string RawInfoData = Builder.ToString();
if (string.IsNullOrWhiteSpace(RawInfoData))
{
throw new FileDamagedException("File damaged, could not be decrypted");
}
else
{
if (RawInfoData.Split('$', StringSplitOptions.RemoveEmptyEntries).FirstOrDefault() is string InfoData)
{
string[] InfoGroup = InfoData.Split('|');
if (InfoGroup.Length == 2)
{
string FileType = InfoGroup[1];
AES.KeySize = Convert.ToInt32(InfoGroup[0]);
int KeyLengthNeed = AES.KeySize / 8;
AES.Key = Key.Length > KeyLengthNeed?Encoding.UTF8.GetBytes(Key.Substring(0, KeyLengthNeed)) : Encoding.UTF8.GetBytes(Key.PadRight(KeyLengthNeed, '0'));
DecryptedFilePath = System.IO.Path.Combine(ExportFolderPath, $"{System.IO.Path.GetFileNameWithoutExtension(Name)}{FileType}");
if (await CreateAsync(DecryptedFilePath, StorageItemTypes.File, CreateOption.GenerateUniqueName).ConfigureAwait(false) is FileSystemStorageItemBase Item)
{
using (FileStream DecryptFileStream = Item.GetFileStreamFromFile(AccessMode.Exclusive))
using (ICryptoTransform Decryptor = AES.CreateDecryptor(AES.Key, AES.IV))
{
EncryptFileStream.Seek(RawInfoData.Length, SeekOrigin.Begin);
byte[] PasswordConfirm = new byte[16];
await EncryptFileStream.ReadAsync(PasswordConfirm, 0, PasswordConfirm.Length).ConfigureAwait(false);
if (Encoding.UTF8.GetString(Decryptor.TransformFinalBlock(PasswordConfirm, 0, PasswordConfirm.Length)) == "PASSWORD_CORRECT")
{
using (CryptoStream TransformStream = new CryptoStream(EncryptFileStream, Decryptor, CryptoStreamMode.Read))
{
await TransformStream.CopyToAsync(DecryptFileStream, 2048, CancelToken).ConfigureAwait(false);
}
}
else
{
throw new PasswordErrorException("Password is not correct");
}
}
return(await OpenAsync(DecryptedFilePath, ItemFilters.File).ConfigureAwait(false));
}
else
{
throw new Exception("Could not create a new file");
}
}
else
{
throw new FileDamagedException("File damaged, could not be decrypted");
}
}
else
{
throw new FileDamagedException("File damaged, could not be decrypted");
}
}
}
}
}
catch (Exception)
{
if (!string.IsNullOrEmpty(DecryptedFilePath))
{
WIN_Native_API.DeleteFromPath(DecryptedFilePath);
}
throw;
}
finally
{
Marshal.ZeroFreeBSTR(Bstr);
unsafe
{
fixed(char *ClearPtr = IV)
{
for (int i = 0; i < IV.Length; i++)
{
ClearPtr[i] = '\0';
}
}
}
}
}
}
public async Task <List <FileSystemStorageItemBase> > GetChildItemsAsync(bool IncludeHiddenItems, bool IncludeSystemItem, ItemFilters Filter = ItemFilters.File | ItemFilters.Folder)
{
if (WIN_Native_API.CheckLocationAvailability(Path))
{
return(WIN_Native_API.GetStorageItems(Path, IncludeHiddenItems, IncludeSystemItem, Filter));
}
else
{
LogTracer.Log($"Native API could not enum subitems in path: \"{Path}\", fall back to UWP storage API");
try
{
if (await GetStorageItemAsync() is StorageFolder Folder)
{
QueryOptions Options = new QueryOptions
{
FolderDepth = FolderDepth.Shallow,
IndexerOption = IndexerOption.DoNotUseIndexer
};
Options.SetThumbnailPrefetch(ThumbnailMode.ListView, 150, ThumbnailOptions.UseCurrentScale);
Options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.Size", "System.DateModified" });
StorageItemQueryResult Query = Folder.CreateItemQueryWithOptions(Options);
List <FileSystemStorageItemBase> Result = new List <FileSystemStorageItemBase>();
for (uint i = 0; ; i += 25)
{
IReadOnlyList <IStorageItem> ReadOnlyItemList = await Query.GetItemsAsync(i, 25);
if (ReadOnlyItemList.Count > 0)
{
foreach (IStorageItem Item in ReadOnlyItemList.Where((Item) => (Item.IsOfType(StorageItemTypes.Folder) && Filter.HasFlag(ItemFilters.Folder)) || (Item.IsOfType(StorageItemTypes.File) && Filter.HasFlag(ItemFilters.File))))
{
if (Item is StorageFolder SubFolder)
{
Result.Add(new FileSystemStorageFolder(SubFolder, await SubFolder.GetModifiedTimeAsync()));
}
else if (Item is StorageFile SubFile)
{
Result.Add(await CreateFromStorageItemAsync(SubFile));
}
}
}
else
{
break;
}
}
return(Result);
}
else
{
return(new List <FileSystemStorageItemBase>(0));
}
}
catch
{
LogTracer.Log($"UWP API could not enum subitems in path: \"{Path}\"");
return(new List <FileSystemStorageItemBase>(0));
}
}
}
public async IAsyncEnumerable <FileSystemStorageItemBase> SearchAsync(string SearchWord, bool SearchInSubFolders = false, bool IncludeHiddenItem = false, bool IncludeSystemItem = false, bool IsRegexExpresstion = false, bool IgnoreCase = true, [EnumeratorCancellation] CancellationToken CancelToken = default)
{
if (WIN_Native_API.CheckLocationAvailability(Path))
{
foreach (FileSystemStorageItemBase Item in await Task.Run(() => WIN_Native_API.Search(Path, SearchWord, SearchInSubFolders, IncludeHiddenItem, IncludeSystemItem, IsRegexExpresstion, IgnoreCase, CancelToken)))
{
yield return(Item);
}
}
else
{
if (await GetStorageItemAsync() is StorageFolder Folder)
{
QueryOptions Options = new QueryOptions
{
FolderDepth = SearchInSubFolders ? FolderDepth.Deep : FolderDepth.Shallow,
IndexerOption = IndexerOption.DoNotUseIndexer
};
Options.SetThumbnailPrefetch(ThumbnailMode.ListView, 150, ThumbnailOptions.UseCurrentScale);
Options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.FileName", "System.Size", "System.DateModified", "System.DateCreated" });
if (!IsRegexExpresstion)
{
Options.ApplicationSearchFilter = $"System.FileName:~=\"{SearchWord}\"";
}
StorageItemQueryResult Query = Folder.CreateItemQueryWithOptions(Options);
for (uint Index = 0; !CancelToken.IsCancellationRequested; Index += 25)
{
IReadOnlyList <IStorageItem> ReadOnlyItemList = await Query.GetItemsAsync(Index, 25);
if (ReadOnlyItemList.Count > 0)
{
IEnumerable <IStorageItem> Result = IsRegexExpresstion
? ReadOnlyItemList.Where((Item) => Regex.IsMatch(Item.Name, SearchWord, IgnoreCase ? RegexOptions.IgnoreCase : RegexOptions.None))
: ReadOnlyItemList.Where((Item) => Item.Name.Contains(SearchWord, IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal));
foreach (IStorageItem Item in Result)
{
if (CancelToken.IsCancellationRequested)
{
yield break;
}
switch (Item)
{
case StorageFolder SubFolder:
{
yield return(new FileSystemStorageFolder(SubFolder, await SubFolder.GetModifiedTimeAsync()));
break;
}
case StorageFile SubFile:
{
yield return(await CreateFromStorageItemAsync(SubFile));
break;
}
}
}
}
else
{
break;
}
}
}
}
}
public async Task <(uint, uint)> GetFolderAndFileNumAsync(CancellationToken CancelToken = default)
{
if (WIN_Native_API.CheckLocationAvailability(Path))
{
return(await Task.Run(() =>
{
return WIN_Native_API.CalculateFolderAndFileCount(Path, CancelToken);
}));
}
else
{
try
{
LogTracer.Log($"Native API could not found the path: \"{Path}\", fall back to UWP storage API");
if (await GetStorageItemAsync() is StorageFolder Folder)
{
QueryOptions Options = new QueryOptions
{
FolderDepth = FolderDepth.Deep,
IndexerOption = IndexerOption.DoNotUseIndexer
};
Options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.Size" });
StorageItemQueryResult Query = Folder.CreateItemQueryWithOptions(Options);
uint FolderCount = 0, FileCount = 0;
for (uint Index = 0; !CancelToken.IsCancellationRequested; Index += 25)
{
IReadOnlyList <IStorageItem> ReadOnlyItemList = await Query.GetItemsAsync(Index, 25);
if (ReadOnlyItemList.Count > 0)
{
foreach (IStorageItem Item in ReadOnlyItemList)
{
if (Item.IsOfType(StorageItemTypes.Folder))
{
FolderCount++;
}
else
{
FileCount++;
}
if (CancelToken.IsCancellationRequested)
{
break;
}
}
}
else
{
break;
}
}
return(FolderCount, FileCount);
}
else
{
return(0, 0);
}
}
catch (Exception ex)
{
LogTracer.Log(ex, $"{nameof(GetFolderAndFileNumAsync)} failed for uwp API");
return(0, 0);
}
}
}
