/// <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 FileSystemItemMetadataExt GetUserFileSysteItemMetadata(FileSystemInfo remoteStorageItem)
{
FileSystemItemMetadataExt userFileSystemItem;
if (remoteStorageItem is FileInfo)
{
userFileSystemItem = new FileMetadataExt();
}
else
{
userFileSystemItem = new FolderMetadataExt();
}
userFileSystemItem.Name = remoteStorageItem.Name;
userFileSystemItem.Attributes = remoteStorageItem.Attributes;
userFileSystemItem.CreationTime = remoteStorageItem.CreationTime;
userFileSystemItem.LastWriteTime = remoteStorageItem.LastWriteTime;
userFileSystemItem.LastAccessTime = remoteStorageItem.LastAccessTime;
userFileSystemItem.ChangeTime = remoteStorageItem.LastWriteTime;
// You will send the ETag to
// the server inside If-Match header togeter with updated content from client.
// This will make sure the changes on the server is not overwritten.
//
// In this sample, for the sake of simplicity, we use file last write time instead of ETag.
userFileSystemItem.ETag = userFileSystemItem.LastWriteTime.ToUniversalTime().ToString("o");
// If the item is locked by another user, set the LockedByAnotherUser to true.
// Here we just use the read-only attribute from remote storage item for demo purposes.
userFileSystemItem.LockedByAnotherUser = (remoteStorageItem.Attributes & System.IO.FileAttributes.ReadOnly) != 0;
if (remoteStorageItem is FileInfo)
{
((FileMetadataExt)userFileSystemItem).Length = ((FileInfo)remoteStorageItem).Length;
}
;
// Set custom columns to be displayed in file manager.
// We create property definitions when registering the sync root with corresponding IDs.
List <FileSystemItemPropertyData> customProps = new List <FileSystemItemPropertyData>();
if (userFileSystemItem.LockedByAnotherUser)
{
customProps.AddRange(
new ServerLockInfo()
{
LockToken = "token",
Owner = "User Name",
Exclusive = true,
LockExpirationDateUtc = DateTimeOffset.Now.AddMinutes(30)
}.GetLockProperties(Path.Combine(Program.Settings.IconsFolderPath, "LockedByAnotherUser.ico"))
);
}
userFileSystemItem.CustomProperties = customProps;
return(userFileSystemItem);
}
/// <summary>
/// Gets file system item info from the user file system item.
/// Removes Pinned, Unpinned and Offline flags from attributes.
/// </summary>
/// <param name="userFileSystemItem">User file system item info.</param>
/// <returns>Object implementing <see cref="IFileSystemItemMetadata"/> interface.</returns>
private static IFileSystemItemMetadata GetMetadata(FileSystemInfo userFileSystemItem)
{
FileSystemItemMetadataExt itemInfo;
if (userFileSystemItem is FileInfo)
{
itemInfo = new FileMetadataExt();
}
else
{
itemInfo = new FolderMetadataExt();
}
// Remove Pinned, unpinned and offline flags,
// so they are not sent to the remote storage by mistake.
FileAttributes flags = userFileSystemItem.Attributes
& (FileAttributes) ~FileAttributesExt.Pinned
& (FileAttributes) ~FileAttributesExt.Unpinned
& (FileAttributes) ~FileAttributesExt.Offline;
itemInfo.Name = userFileSystemItem.Name;
itemInfo.Attributes = flags;
itemInfo.CreationTime = userFileSystemItem.CreationTime;
itemInfo.LastWriteTime = userFileSystemItem.LastWriteTime;
itemInfo.LastAccessTime = userFileSystemItem.LastAccessTime;
itemInfo.ChangeTime = userFileSystemItem.LastWriteTime;
itemInfo.CustomData = PlaceholderItem.GetItem(userFileSystemItem.FullName).GetCustomData();
if (userFileSystemItem is FileInfo)
{
((FileMetadataExt)itemInfo).Length = ((FileInfo)userFileSystemItem).Length;
}
;
return(itemInfo);
}
/// <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 FileSystemItemMetadataExt GetUserFileSystemItemMetadata(IHierarchyItemAsync remoteStorageItem)
{
FileSystemItemMetadataExt userFileSystemItem;
if (remoteStorageItem is IFileAsync)
{
userFileSystemItem = new FileMetadataExt();
}
else
{
userFileSystemItem = new FolderMetadataExt();
}
userFileSystemItem.Name = remoteStorageItem.DisplayName;
userFileSystemItem.Attributes = FileAttributes.Normal;
userFileSystemItem.CreationTime = remoteStorageItem.CreationDate;
userFileSystemItem.LastWriteTime = remoteStorageItem.LastModified;
userFileSystemItem.LastAccessTime = remoteStorageItem.LastModified;
userFileSystemItem.ChangeTime = remoteStorageItem.LastModified;
// If the item is locked by another user, set the LockedByAnotherUser to true.
// This will set read-only arrtibute on files.
// Note that read-only attribute is a convenience feature, it does not protect files from modification.
userFileSystemItem.LockedByAnotherUser = remoteStorageItem.ActiveLocks.Length > 0;
if (remoteStorageItem is IFileAsync)
{
// We send the ETag to
// the server inside If-Match header togeter with updated content from client.
// This will make sure the changes on the server is not overwritten.
((FileMetadataExt)userFileSystemItem).ETag = ((IFileAsync)remoteStorageItem).Etag;
((FileMetadataExt)userFileSystemItem).Length = ((IFileAsync)remoteStorageItem).ContentLength;
}
;
// Set custom columns to be displayed in file manager.
// We create property definitions when registering the sync root with corresponding IDs.
List <FileSystemItemPropertyData> customProps = new List <FileSystemItemPropertyData>();
LockInfo lockInfo = remoteStorageItem.ActiveLocks.FirstOrDefault();
if (lockInfo != null)
{
customProps.AddRange(
new ServerLockInfo()
{
LockToken = lockInfo.LockToken.LockToken,
Owner = lockInfo.Owner,
Exclusive = lockInfo.LockScope == LockScope.Exclusive,
LockExpirationDateUtc = DateTimeOffset.Now.Add(lockInfo.TimeOut)
}.GetLockProperties(Path.Combine(Program.Settings.IconsFolderPath, "LockedByAnotherUser.ico"))
);
}
if (remoteStorageItem is IFileAsync)
{
customProps.Add(new FileSystemItemPropertyData((int)CustomColumnIds.ETag, ((IFileAsync)remoteStorageItem).Etag));
}
;
userFileSystemItem.CustomProperties = customProps;
return(userFileSystemItem);
}
