/// <summary>
/// Creates a root FTP directory.
/// </summary>
/// <param name="uri"></param>
/// <param name="lastModifiedTime"></param>
/// <returns></returns>
/// <exception cref="System.ArgumentException"><paramref name="uri"/> is null or not represents a FTP URI or is not a absolute URI.</exception>
public static FtpDirectoryInfo CreateRoot(Uri uri, DateTime?lastModifiedTime)
{
if (uri == null)
{
throw new ArgumentException("The URI is null.", "uri");
}
if (!string.Equals(uri.Scheme, Uri.UriSchemeFtp, StringComparison.OrdinalIgnoreCase))
{
throw new ArgumentException("The URI not represents a FTP URI.", "uri");
}
if (!uri.IsAbsoluteUri)
{
throw new ArgumentException("The URI not represents a absolute FTP URI.", "uri");
}
FtpDirectoryInfo root = new FtpDirectoryInfo {
IsDirectory = true,
Root = null,
Parent = null,
Name = Path.GetFileName(uri.LocalPath),
RelativeUri = uri.MakeRelativeUri(uri),
AbsoluteUri = uri,
Length = 0,
LastModifyTime = (lastModifiedTime ?? DateTime.MinValue),
};
root.Root = root;
return(root);
}
/// <summary>
/// Creates a FtpFileInfo object from the detailed information returned from the FTP server.
/// If the file represents the current directory or parent directory, then return null.
/// </summary>
/// <param name="parent"></param>
/// <param name="detail"></param>
/// <returns></returns>
/// <exception cref="System.ArgumentException"><paramref name="parent"/> is null.</exception>
/// <exception cref="System.ArgumentException"><paramref name="detail"/> is null or empty.</exception>
public static FtpFileInfo Create(FtpDirectoryInfo parent, string detail)
{
if (parent == null)
{
throw new ArgumentException("The parent directory is null.", "parent");
}
if (string.IsNullOrWhiteSpace(detail))
{
throw new ArgumentException("The detailed information is null or empty.", "detail");
}
FtpFileInfo info = null;
if (Regex.IsMatch(detail, @"^\d"))
{
//MS-DOS format
info = ParseMsDosFormat(detail);
}
else
{
//Unix format
info = ParseUnixFormat(detail);
}
if (string.Equals(info.Name, CURRENT_DIRECTORY_NAME) || string.Equals(info.Name, PARENT_DIRECTORY_NAME))
{
info = null;
}
else
{
info.Root = parent.Root;
info.Parent = parent;
if (parent.RelativeUri.OriginalString.Length > 0)
{
info.RelativeUri = new Uri(string.Format("{0}/{1}", parent.RelativeUri, info.Name), UriKind.Relative);
}
else
{
info.RelativeUri = new Uri(info.Name, UriKind.Relative);
}
info.AbsoluteUri = new Uri(parent.AbsoluteUri, info.Name);
//info.RelativeUri = new Uri(Uri.UnescapeDataString(parent.Root.AbsoluteUri.MakeRelativeUri(info.AbsoluteUri).ToString()), UriKind.Relative);
}
return(info);
}