public static IEnumerable<MetaData> GetMetadataRecursive(MetaData metaData) {

var result = new List<MetaData>() {metaData};

if (metaData.Contents != null) {

foreach (var data in metaData.Contents) {

result.AddRange(GetMetadataRecursive(data));

}

}

return result;

}

/// <summary>

/// Get all remote folder names recursively

/// </summary>

/// <param name="client"></param>

/// <param name="path">Parent path, defaults to "/"</param>

/// <returns></returns>

public static IEnumerable<string> GetFoldernames(this DropNetClient client, string path = "/") {

var metaData = client.GetMetaData(path);

var folders = from meta in GetMetadataRecursive(metaData)

where meta.Is_Dir && !meta.Is_Deleted

select meta.Path;

return folders;

}

/// <summary>

/// Get all remote file names recursively

/// </summary>

/// <param name="client"></param>

/// <param name="path">Parent path, defaults to "/"</param>

/// <returns></returns>

public static IEnumerable<string> GetFilenames(this DropNetClient client, string path = "/") {

var metaData = client.GetMetaData(path);

var folders = from meta in GetMetadataRecursive(metaData)

where !meta.Is_Dir && !meta.Is_Deleted

select meta.Path;

return folders;

}

/// <summary>

/// Download a file from Dropbox

/// </summary>

/// <param name="client">Dropnet client</param>

/// <param name="remotePath">The file's path on Dropbox (use forward slashes for directory separators)</param>

/// <param name="localPath">The target path</param>

public static void DownloadFile(this DropNetClient client, string remotePath, string localPath) {

var bytes = client.GetFile(remotePath);

var targetFolder = localPath.ParentDirectory();

if (!Directory.Exists(targetFolder)) {

Directory.CreateDirectory(targetFolder);

}

File.WriteAllBytes(localPath, bytes);

}

/// <summary>

/// Downloads a folder from Dropbox

/// </summary>

/// <param name="client"></param>

/// <param name="remoteFolder">The path to the source folder. </param>

/// <param name="localFolder"></param>

/// <param name="includeSelf">If false, only the contents of the source folder are downloaded, not the source folder itself. If true, the source folder is downloaded into the target folder.</param>

public static void DownloadFolder(this DropNetClient client, string remoteFolder, string localFolder, bool includeSelf) {

foreach (var remoteFile in client.GetFilenames(remoteFolder)) {

var parent = includeSelf ? remoteFolder.ParentDirectory() : remoteFolder;

var relativeRemotePath = remoteFile.RemoveFromStart(parent);

var localFilePath = localFolder.AppendPathEvenIfItIsRooted(relativeRemotePath.Replace('/', Path.DirectorySeparatorChar));

client.DownloadFile(remoteFile, localFilePath);

}

}

/// <summary>

/// Upload a file

/// </summary>

/// <param name="client"></param>

/// <param name="localPath">Local filename</param>

/// <param name="remotePath">Filename on Dropbox</param>

public static void UploadFile(this DropNetClient client, string localPath, string remotePath) {

var path = remotePath.ParentDirectory();

var fileName = remotePath.GetFileNameUniversal();

client.UploadFile(path, fileName, File.ReadAllBytes(localPath));

}

/// <summary>

/// Upload a folder

/// </summary>

/// <param name="client"></param>

/// <param name="localFolder">Source</param>

/// <param name="remoteFolder">Destination</param>

/// <param name="includeSelf">If false, only the contents of the source folder are uploaded, not the source folder itself. If true, the source folder is uploaded into the target folder.</param>

public static void UploadFolder(this DropNetClient client, string localFolder, string remoteFolder, bool includeSelf) {

foreach (var localPath in Directory.GetFiles(localFolder, "*.*", SearchOption.AllDirectories)) {

var parent = includeSelf ? localFolder.ParentDirectory() : localFolder;

var relativeLocalPath = localPath.PathRelativeTo(parent);

var relativeRemotePath = relativeLocalPath.Replace(Path.DirectorySeparatorChar, '/');

var remotePath = remoteFolder.AppendPath(relativeRemotePath).Replace(Path.DirectorySeparatorChar, '/');

client.UploadFile(localPath, remotePath);

}

}