/// <inheritdoc/>
public async Task <byte[]> CreateFileAsync(IFileMetadata fileMetadata, Stream content = null)
{
Logger.LogMessage($"{nameof(IFolder)}.{nameof(CreateFileAsync)}()", Path.Combine(UserFileSystemPath, fileMetadata.Name));
FileInfo remoteStorageItem = new FileInfo(Path.Combine(RemoteStoragePath, fileMetadata.Name));
// Upload remote storage file content.
await using (FileStream remoteStorageStream = remoteStorageItem.Open(FileMode.CreateNew, FileAccess.Write, FileShare.Delete))
{
if (content != null)
{
await content.CopyToAsync(remoteStorageStream);
remoteStorageStream.SetLength(content.Length);
}
}
// Update remote storage file metadata.
remoteStorageItem.Attributes = fileMetadata.Attributes;
remoteStorageItem.CreationTimeUtc = fileMetadata.CreationTime.UtcDateTime;
remoteStorageItem.LastWriteTimeUtc = fileMetadata.LastWriteTime.UtcDateTime;
remoteStorageItem.LastAccessTimeUtc = fileMetadata.LastAccessTime.UtcDateTime;
remoteStorageItem.LastWriteTimeUtc = fileMetadata.LastWriteTime.UtcDateTime;
// Return remote storage item ID. It will be passed later into IEngine.GetFileSystemItemAsync() method.
return(WindowsFileSystemItem.GetItemIdByPath(remoteStorageItem.FullName));
}
/// <summary>
/// Gets a user file system item info from the remote storage data.
/// </summary>
/// <param name="remoteStorageItem">Remote storage item info.</param>
/// <returns>User file system item info.</returns>
public static IFileSystemItemMetadata GetUserFileSysteItemMetadata(FileSystemInfo remoteStorageItem)
{
IFileSystemItemMetadata userFileSystemItem;
if (remoteStorageItem is FileInfo)
{
userFileSystemItem = new FileMetadata();
((FileMetadata)userFileSystemItem).Length = ((FileInfo)remoteStorageItem).Length;
}
else
{
userFileSystemItem = new FolderMetadata();
}
// Store you item ID here. It will be passed to IEngine.GetFileSystemItemAsync() during every operation.
// Note that the file is deleted during MS Office transactional save and iten ID will be deleted with it.
// See Virtual Drive sample for MS Office documents editing.
userFileSystemItem.ItemId = WindowsFileSystemItem.GetItemIdByPath(remoteStorageItem.FullName);
userFileSystemItem.Name = remoteStorageItem.Name;
userFileSystemItem.Attributes = remoteStorageItem.Attributes;
userFileSystemItem.CreationTime = remoteStorageItem.CreationTime;
userFileSystemItem.LastWriteTime = remoteStorageItem.LastWriteTime;
userFileSystemItem.LastAccessTime = remoteStorageItem.LastAccessTime;
userFileSystemItem.ChangeTime = remoteStorageItem.LastWriteTime;
return(userFileSystemItem);
}
/// <summary>
/// Deletes a file or folder placeholder in user file system.
/// </summary>
/// <remarks>This method failes if the file or folder in user file system is modified (not in sync with the remote storage).</remarks>
public async Task DeleteAsync()
{
// Windows does not provide a function to delete a placeholder file only if it is not modified.
// Here we check that the file is not modified in user file system, using GetInSync() call.
// To avoid the file modification between GetInSync() call and Delete() call in this method we
// open it without FileShare.Write flag.
using (WindowsFileSystemItem userFileSystemWinItem = WindowsFileSystemItem.Open(userFileSystemPath, (FileAccess)0, FileMode.Open, FileShare.Read | FileShare.Delete))
{
if (PlaceholderItem.GetInSync(userFileSystemWinItem.SafeHandle))
{
if (FsPath.IsFile(userFileSystemPath))
{
File.Delete(userFileSystemPath);
}
else
{
Directory.Delete(userFileSystemPath, true);
}
}
else
{
throw new IOException("File not in-sync.");
}
}
}
///<inheritdoc>
public async Task MoveToAsync(string userFileSystemNewPath, byte[] newParentItemId, IOperationContext operationContext, IConfirmationResultContext resultContext)
{
string userFileSystemOldPath = this.UserFileSystemPath;
Logger.LogMessage($"{nameof(IFileSystemItem)}.{nameof(MoveToAsync)}()", userFileSystemOldPath, userFileSystemNewPath);
string remoteStorageOldPath = RemoteStoragePath;
string remoteStorageNewParentPath = WindowsFileSystemItem.GetPathByItemId(newParentItemId);
string remoteStorageNewPath = Path.Combine(remoteStorageNewParentPath, Path.GetFileName(userFileSystemNewPath));
FileSystemInfo remoteStorageOldItem = FsPath.GetFileSystemItem(remoteStorageOldPath);
if (remoteStorageOldItem != null)
{
if (remoteStorageOldItem is FileInfo)
{
(remoteStorageOldItem as FileInfo).MoveTo(remoteStorageNewPath, true);
}
else
{
(remoteStorageOldItem as DirectoryInfo).MoveTo(remoteStorageNewPath);
}
Logger.LogMessage("Moved item in remote storage succesefully", userFileSystemOldPath, userFileSystemNewPath);
}
}
/// <summary>
/// Creates or updates file in the remote storage.
/// </summary>
/// <param name="remoteStoragePath">Path of the file to be created or updated in the remote storage.</param>
/// <param name="newInfo">New information about the file, such as modification date, attributes, custom data, etc.</param>
/// <param name="mode">Specifies if a new file should be created or existing file should be updated.</param>
/// <param name="newContentStream">New file content or null if the file content is not modified.</param>
/// <param name="eTagOld">The ETag to be sent to the remote storage as part of the update request to make sure the content is not overwritten.</param>
/// <param name="lockInfo">Information about the lock. Null if the item is not locked.</param>
/// <returns>The new ETag returned from the remote storage.</returns>
protected async Task <string> CreateOrUpdateFileAsync(
string remoteStoragePath, IFileMetadata newInfo, FileMode mode, Stream newContentStream = null, string eTagOld = null, ServerLockInfo lockInfo = null)
{
FileInfo remoteStorageItem = new FileInfo(remoteStoragePath);
try
{
Program.VirtualDrive.RemoteStorageMonitor.Enabled = false; // Disable RemoteStorageMonitor to avoid circular calls.
// If another thread is trying to sync the same file, this call will fail in other threads.
// In your implementation you must lock your remote storage file, or block it for reading and writing by other means.
await using (FileStream remoteStorageStream = remoteStorageItem.Open(mode, FileAccess.Write, FileShare.None))
{
string userFileSystemPath = Mapping.ReverseMapPath(remoteStoragePath);
if (mode == FileMode.Open)
{
// Verify that the item in the remote storage is not modified since it was downloaded to the user file system.
// In your real-life application you will send the ETag to the server as part of the update request.
FileSystemItemMetadataExt itemInfo = Mapping.GetUserFileSysteItemMetadata(remoteStorageItem);
if (!(await VirtualDrive.GetETagManager(userFileSystemPath).ETagEqualsAsync(itemInfo)))
{
throw new ConflictException(Modified.Server, "Item is modified in the remote storage, ETags not equal.");
}
}
// Update ETag/LastWriteTime in user file system, so the synchronyzation or remote storage monitor would not start the new update.
// This is only required to avoid circular updates because of the simplicity of this sample.
// In your real-life application you will receive a new ETag from the server in the update response
// and return it from this method.
string eTagNew = newInfo.LastWriteTime.ToUniversalTime().ToString("o");
await VirtualDrive.GetETagManager(userFileSystemPath).SetETagAsync(eTagNew);
// Update remote storage file content.
if (newContentStream != null)
{
await newContentStream.CopyToAsync(remoteStorageStream);
remoteStorageStream.SetLength(newContentStream.Length);
}
// Update remote storage file basic info.
WindowsFileSystemItem.SetFileInformation(
remoteStorageStream.SafeFileHandle,
newInfo.Attributes,
newInfo.CreationTime,
newInfo.LastWriteTime,
newInfo.LastAccessTime,
newInfo.LastWriteTime);
return(eTagNew);
}
}
finally
{
Program.VirtualDrive.RemoteStorageMonitor.Enabled = true;
}
}
/// <summary>
/// Recursively restores OriginalPath and the 'locked' icon.
/// </summary>
/// <param name="userFileSystemNewPath">Path in the user file system to start recursive processing.</param>
private async Task MoveToCompletionRecursiveAsync(string userFileSystemNewPath)
{
if (FsPath.IsFolder(userFileSystemNewPath))
{
if (!new DirectoryInfo(userFileSystemNewPath).Attributes.HasFlag(System.IO.FileAttributes.Offline))
{
//LogMessage("Folder offline, skipping:", userFileSystemFolderPath);
IEnumerable <string> userFileSystemChildren = Directory.EnumerateFileSystemEntries(userFileSystemNewPath, "*");
foreach (string userFileSystemChildPath in userFileSystemChildren)
{
try
{
await MoveToCompletionRecursiveAsync(userFileSystemChildPath);
}
catch (Exception ex)
{
logger.LogError("Failed to complete move", userFileSystemChildPath, null, ex);
}
}
}
}
if (FsPath.Exists(userFileSystemNewPath) && // This check is just to avoid extra error in the log.
!FsPath.IsRecycleBin(userFileSystemNewPath) && // When a file with content is deleted, it is moved to a Recycle Bin.
!FsPath.AvoidAutoLock(userFileSystemNewPath)) // No need to update temp MS Office docs.
{
// Open file to prevent reads and changes between GetFileDataSizeInfo() call and SetInSync() call.
using (WindowsFileSystemItem userFileSystemWinItem = WindowsFileSystemItem.OpenReadAttributes(userFileSystemNewPath, FileMode.Open, FileShare.None))
{
// If a file with content is deleted it is moved to a recycle bin and converted
// to a regular file, so placeholder features are not available on it, checking if a file is a placeholder.
if (/*updateTargetOnSuccess &&*/ PlaceholderItem.IsPlaceholder(userFileSystemNewPath))
{
PlaceholderItem placeholderNew = PlaceholderItem.GetItem(userFileSystemNewPath);
await virtualDrive.GetUserFileSystemRawItem(userFileSystemNewPath, logger).ClearStateAsync();
// Update OriginalPath if the item is not new.
// Required for pptx and xlsx files Save As operation.
if (!placeholderNew.IsNew(virtualDrive))
{
// Update OriginalPath, so the item does not appear as moved.
logger.LogMessage("Setting Original Path", userFileSystemNewPath);
placeholderNew.SetOriginalPath(userFileSystemNewPath);
}
// Restore the 'locked' icon.
ServerLockInfo existingLock = await virtualDrive.LockManager(userFileSystemNewPath, logger).GetLockInfoAsync();
await virtualDrive.GetUserFileSystemRawItem(userFileSystemNewPath, logger).SetLockInfoAsync(existingLock);
}
}
}
}
private async Task CreateOrUpdateFileAsync(string userFileSystemPath, bool create)
{
try
{
Program.RemoteStorageMonitorInstance.Enabled = false; // Disable RemoteStorageMonitor to avoid circular calls.
FileInfo userFileSystemFile = new FileInfo(userFileSystemPath);
FileInfo remoteStorageFile = new FileInfo(remoteStoragePath);
FileMode fileMode = create ? FileMode.CreateNew : FileMode.Open;
await using (FileStream userFileSystemStream = userFileSystemFile.Open(FileMode.Open, FileAccess.Read, FileShare.Read))
{
// If another thread is trying to sync the same file, this call will fail in other threads.
// In your implemntation you must lock your remote storage file, or block it for reading and writing by other means.
await using (FileStream remoteStorageStream = remoteStorageFile.Open(fileMode, FileAccess.Write, FileShare.None))
{
userFileSystemFile.Refresh(); // Ensures LastWriteTimeUtc is in sync with file content after Open() was called.
// Update ETag/LastWriteTime in user file system, so the synchronyzation or remote storage monitor would not start the new update.
byte[] customData = BitConverter.GetBytes(userFileSystemFile.LastWriteTime.ToBinary());
PlaceholderItem.SetCustomData(userFileSystemStream.SafeFileHandle, customData);
// Update remote storage file content.
await userFileSystemStream.CopyToAsync(remoteStorageStream);
remoteStorageStream.SetLength(userFileSystemStream.Length);
// Update remote storage file basic info.
WindowsFileSystemItem.SetFileInformation(remoteStorageStream.SafeFileHandle,
userFileSystemFile.Attributes & (FileAttributes) ~FileAttributesExt.Pinned, // Remove Pinned flag.
userFileSystemFile.CreationTimeUtc,
userFileSystemFile.LastWriteTimeUtc,
userFileSystemFile.LastAccessTimeUtc,
userFileSystemFile.LastWriteTimeUtc);
// If you are using ETags, here you will also send to the remote storage a new file ETag.
PlaceholderItem.SetInSync(userFileSystemStream.SafeFileHandle, true);
}
}
}
finally
{
Program.RemoteStorageMonitorInstance.Enabled = true;
}
}
//$>
/// <summary>
/// Deletes a file or folder placeholder in user file system.
/// </summary>
/// <remarks>
/// This method throws <see cref="ConflictException"/> if the file or folder or any file or folder
/// in the folder hierarchy being deleted in user file system is modified (not in sync with the remote storage).
/// </remarks>
/// <returns>True if the file was deleted. False - otherwise.</returns>
public async Task <bool> DeleteAsync()
{
// Cloud Filter API does not provide a function to delete a placeholder file only if it is not modified.
// Here we check that the file is not modified in user file system, using GetInSync() call.
// To avoid the file modification between GetInSync() call and Delete() call we
// open it without FileShare.Write flag.
try
{
// Because of the on-demand population the file or folder placeholder may not exist in the user file system.
if (FsPath.Exists(userFileSystemPath))
{
using (WindowsFileSystemItem userFileSystemWinItem = WindowsFileSystemItem.Open(userFileSystemPath, (FileAccess)0, FileMode.Open, FileShare.Read | FileShare.Delete))
{
if (PlaceholderItem.GetInSync(userFileSystemWinItem.SafeHandle))
{
if (FsPath.IsFile(userFileSystemPath))
{
File.Delete(userFileSystemPath);
}
else
{
Directory.Delete(userFileSystemPath, true);
}
// Delete ETag
ETag.DeleteETag(userFileSystemPath);
return(true);
}
else
{
throw new ConflictException(Modified.Client, "The item is not in-sync with the cloud.");
}
}
}
}
catch (Exception ex)
{
await SetDownloadErrorStateAsync(ex);
// Rethrow the exception preserving stack trace of the original exception.
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Capture(ex).Throw();
}
return(false);
}
/// <inheritdoc/>
public async Task <byte[]> CreateFolderAsync(IFolderMetadata folderMetadata)
{
Logger.LogMessage($"{nameof(IFolder)}.{nameof(CreateFolderAsync)}()", Path.Combine(UserFileSystemPath, folderMetadata.Name));
DirectoryInfo remoteStorageItem = new DirectoryInfo(Path.Combine(RemoteStoragePath, folderMetadata.Name));
remoteStorageItem.Create();
// Update remote storage folder metadata.
remoteStorageItem.Attributes = folderMetadata.Attributes;
remoteStorageItem.CreationTimeUtc = folderMetadata.CreationTime.UtcDateTime;
remoteStorageItem.LastWriteTimeUtc = folderMetadata.LastWriteTime.UtcDateTime;
remoteStorageItem.LastAccessTimeUtc = folderMetadata.LastAccessTime.UtcDateTime;
remoteStorageItem.LastWriteTimeUtc = folderMetadata.LastWriteTime.UtcDateTime;
// Return remote storage item ID. It will be passed later into IEngine.GetFileSystemItemAsync() method.
return(WindowsFileSystemItem.GetItemIdByPath(remoteStorageItem.FullName));
}
/// <summary>
/// Creates instance of this class.
/// </summary>
/// <param name="userFileSystemPath">File or folder path in the user file system.</param>
/// <param name="itemId">Remote storage item ID.</param>
/// <param name="logger">Logger.</param>
public VirtualFileSystemItem(string userFileSystemPath, byte[] itemId, ILogger logger)
{
if (string.IsNullOrEmpty(userFileSystemPath))
{
throw new ArgumentNullException(nameof(userFileSystemPath));
}
ItemId = itemId ?? throw new ArgumentNullException(nameof(itemId));
Logger = logger ?? throw new ArgumentNullException(nameof(logger));
UserFileSystemPath = userFileSystemPath;
try
{
RemoteStoragePath = WindowsFileSystemItem.GetPathByItemId(ItemId);
}
catch (ArgumentException)
{
// When a file is deleted, the IFile.CloseAsync() is called for the deleted file.
}
}
internal async Task MoveToAsync(string userFileSystemNewPath, IConfirmationResultContext resultContext = null)
{
string userFileSystemOldPath = userFileSystemPath;
try
{
bool? inSync = null;
bool updateTargetOnSuccess = false;
string eTag = null;
try
{
if (!FsPath.IsRecycleBin(userFileSystemNewPath) && // When a file is deleted, it is moved to a Recycle Bin.
!FsPath.AvoidSync(userFileSystemOldPath) && !FsPath.AvoidSync(userFileSystemNewPath))
{
logger.LogMessage("Moving item in remote storage", userFileSystemOldPath, userFileSystemNewPath);
// Read In-Sync state before move and set after move
if (FsPath.Exists(userFileSystemOldPath))
{
inSync = PlaceholderItem.GetItem(userFileSystemOldPath).GetInSync();
}
eTag = await ETag.GetETagAsync(userFileSystemOldPath);
ETag.DeleteETag(userFileSystemOldPath);
IUserFileSystemItem userFileSystemItemOld = await virtualDrive.GetItemAsync <IUserFileSystemItem>(userFileSystemOldPath);
await userFileSystemItemOld.MoveToAsync(userFileSystemNewPath);
updateTargetOnSuccess = true;
logger.LogMessage("Moved succesefully in remote storage", userFileSystemOldPath, userFileSystemNewPath);
}
}
finally
{
if (resultContext != null)
{
resultContext.ReturnConfirmationResult();
}
// This check is just to avoid extra error in the log.
if (FsPath.Exists(userFileSystemNewPath))
{
// Open file to preven reads and changes between GetFileDataSizeInfo() call and SetInSync() call.
using (WindowsFileSystemItem userFileSystemWinItem = WindowsFileSystemItem.OpenReadAttributes(userFileSystemNewPath, FileMode.Open, FileShare.None))
{
if ((eTag != null) && PlaceholderItem.IsPlaceholder(userFileSystemNewPath))
{
await ETag.SetETagAsync(userFileSystemNewPath, eTag);
}
// If a file with content is deleted it is moved to a recycle bin and converted
// to a regular file, so placeholder features are not available on it, checking if a file is a placeholder.
if (updateTargetOnSuccess && PlaceholderItem.IsPlaceholder(userFileSystemNewPath))
{
PlaceholderItem placeholderNew = PlaceholderItem.GetItem(userFileSystemNewPath);
// Update OriginalPath, so the item does not appear as moved.
placeholderNew.SetOriginalPath(userFileSystemNewPath);
if (inSync != null)
{
placeholderNew.SetInSync(inSync.Value);
}
else if ((placeholderNew is PlaceholderFile) && ((PlaceholderFile)placeholderNew).GetFileDataSizeInfo().ModifiedDataSize == 0)
{
placeholderNew.SetInSync(true);
}
await new UserFileSystemRawItem(userFileSystemNewPath).ClearStateAsync();
}
}
}
}
}
catch (Exception ex)
{
string userFileSystemPath = FsPath.Exists(userFileSystemNewPath) ? userFileSystemNewPath : userFileSystemOldPath;
await new UserFileSystemRawItem(userFileSystemPath).SetUploadErrorStateAsync(ex);
// Rethrow the exception preserving stack trace of the original exception.
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Capture(ex).Throw();
}
}
/// <summary>
/// Creates or updates the item in the remote storage.
/// </summary>
/// <param name="mode">
/// Indicates if the file should created or updated.
/// Supported modes are <see cref="FileMode.CreateNew"/> and <see cref="FileMode.Open"/>
/// </param>
/// <param name="lockInfo">Information about the lock. Pass null if the item is not locked.</param>
private async Task CreateOrUpdateAsync(FileMode mode, ServerLockInfo lockInfo = null)
{
if ((mode != FileMode.CreateNew) && (mode != FileMode.Open))
{
throw new ArgumentOutOfRangeException("mode", $"Must be {FileMode.CreateNew} or {FileMode.Open}");
}
FileSystemInfo userFileSystemItem = FsPath.GetFileSystemItem(userFileSystemPath);
using (WindowsFileSystemItem userFileSystemWinItem = WindowsFileSystemItem.OpenReadAttributes(userFileSystemPath, FileMode.Open, FileShare.Read))
//await using (FileStream userFileSystemStream = userFileSystemFile.Open(FileMode.Open, FileAccess.Read, FileShare.Read))
{
// Create the new file/folder in the remote storage only if the file/folder in the user file system was not moved.
// If the file is moved in user file system, move must first be syched to remote storage.
if ((mode == FileMode.CreateNew) && PlaceholderItem.GetItem(userFileSystemPath).IsMoved())
{
string originalPath = PlaceholderItem.GetItem(userFileSystemPath).GetOriginalPath();
throw new ConflictException(Modified.Client, $"The item was moved. Original path: {originalPath}");
}
// Ensures LastWriteTimeUtc is in sync with file content after Open() was called.
userFileSystemItem.Refresh();
IFileSystemItemBasicInfo info = GetBasicInfo(userFileSystemItem);
// Update remote storage file.
FileStream userFileSystemStream = null;
try
{
string eTag = null;
if (FsPath.IsFile(userFileSystemPath))
{
// File is marked as not in-sync when updated OR moved.
// Opening a file for reading triggers hydration, make sure to open only if content is modified.
if (PlaceholderFile.GetFileDataSizeInfo(userFileSystemWinItem.SafeHandle).ModifiedDataSize > 0)
{
//userFileSystemStream = new FileStream(userFileSystemWinItem.SafeHandle, FileAccess.Read);
userFileSystemStream = ((FileInfo)userFileSystemItem).Open(FileMode.Open, FileAccess.Read, FileShare.Read);
}
if (mode == FileMode.CreateNew)
{
string userFileSystemParentPath = Path.GetDirectoryName(userFileSystemPath);
IUserFolder userFolder = await virtualDrive.GetItemAsync <IUserFolder>(userFileSystemParentPath);
eTag = await userFolder.CreateFileAsync((IFileBasicInfo)info, userFileSystemStream);
}
else
{
IUserFile userFile = await virtualDrive.GetItemAsync <IUserFile>(userFileSystemPath);
eTag = await userFile.UpdateAsync((IFileBasicInfo)info, userFileSystemStream, lockInfo);
}
}
else
{
if (mode == FileMode.CreateNew)
{
string userFileSystemParentPath = Path.GetDirectoryName(userFileSystemPath);
IUserFolder userFolder = await virtualDrive.GetItemAsync <IUserFolder>(userFileSystemParentPath);
eTag = await userFolder.CreateFolderAsync((IFolderBasicInfo)info);
}
else
{
IUserFolder userFolder = await virtualDrive.GetItemAsync <IUserFolder>(userFileSystemPath);
eTag = await userFolder.UpdateAsync((IFolderBasicInfo)info, lockInfo);
}
}
await ETag.SetETagAsync(userFileSystemPath, eTag);
if (mode == FileMode.CreateNew)
{
PlaceholderItem.GetItem(userFileSystemPath).SetOriginalPath(userFileSystemPath);
}
}
finally
{
if (userFileSystemStream != null)
{
userFileSystemStream.Close();
}
}
PlaceholderItem.SetInSync(userFileSystemWinItem.SafeHandle, true);
}
}
static async Task Main(string[] args)
{
// Load Settings.
IConfiguration configuration = new ConfigurationBuilder().AddJsonFile("appsettings.json", false, true).Build();
Settings = configuration.ReadSettings();
// Load Log4Net for net configuration.
var logRepository = LogManager.GetRepository(Assembly.GetEntryAssembly());
XmlConfigurator.Configure(logRepository, new FileInfo(Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), "log4net.config")));
// Enable UTF8 for Console Window
Console.OutputEncoding = System.Text.Encoding.UTF8;
log.Info($"\n{System.Diagnostics.Process.GetCurrentProcess().ProcessName} {Settings.AppID}");
log.Info("\nPress 'Q' to unregister file system, delete all files/folders and exit (simulate uninstall with full cleanup).");
log.Info("\nPress 'q' to unregister file system and exit (simulate uninstall).");
log.Info("\nPress any other key to exit without unregistering (simulate reboot).");
log.Info("\n----------------------\n");
// Typically you will register sync root during your application installation.
// Here we register it during first program start for the sake of the development convenience.
if (!await Registrar.IsRegisteredAsync(Settings.UserFileSystemRootPath))
{
log.Info($"\nRegistering {Settings.UserFileSystemRootPath} sync root.");
Directory.CreateDirectory(Settings.UserFileSystemRootPath);
await Registrar.RegisterAsync(SyncRootId, Settings.UserFileSystemRootPath, Settings.ProductName,
Path.Combine(Settings.IconsFolderPath, "Drive.ico"));
// Set root item ID. It will be passed to IEngine.GetFileSystemItemAsync() method
// as itemId parameter when a root folder is requested.
byte[] itemId = WindowsFileSystemItem.GetItemIdByPath(Settings.RemoteStorageRootPath);
PlaceholderFolder.GetItem(Settings.UserFileSystemRootPath).SetItemId(itemId);
}
else
{
log.Info($"\n{Settings.UserFileSystemRootPath} sync root already registered.");
}
// Log indexed state.
StorageFolder userFileSystemRootFolder = await StorageFolder.GetFolderFromPathAsync(Settings.UserFileSystemRootPath);
log.Info($"\nIndexed state: {(await userFileSystemRootFolder.GetIndexedStateAsync())}\n");
ConsoleKeyInfo exitKey;
try
{
Engine = new VirtualEngine(Settings.UserFileSystemLicense, Settings.UserFileSystemRootPath, Settings.RemoteStorageRootPath, log);
// Start processing OS file system calls.
await Engine.StartAsync();
#if DEBUG
// Opens Windows File Manager with user file system folder and remote storage folder.
ShowTestEnvironment();
#endif
// Keep this application running until user input.
exitKey = Console.ReadKey();
}
finally
{
Engine.Dispose();
}
if (exitKey.KeyChar == 'q')
{
// Unregister during programm uninstall.
await Registrar.UnregisterAsync(SyncRootId);
log.Info($"\n\nUnregistering {Settings.UserFileSystemRootPath} sync root.");
log.Info("\nAll empty file and folder placeholders are deleted. Hydrated placeholders are converted to regular files / folders.\n");
}
else if (exitKey.KeyChar == 'Q')
{
log.Info($"\n\nUnregistering {Settings.UserFileSystemRootPath} sync root.");
log.Info("\nAll files and folders placeholders are deleted.\n");
// Unregister during programm uninstall and delete all files/folder.
await Registrar.UnregisterAsync(SyncRootId);
try
{
Directory.Delete(Settings.UserFileSystemRootPath, true);
}
catch (Exception ex)
{
log.Error($"\n{ex}");
}
}
else
{
log.Info("\n\nAll downloaded file / folder placeholders remain in file system. Restart the application to continue managing files.\n");
}
}
