/// <summary>
/// Returns file that corresponds to path.
/// </summary>
/// <param name="context">WebDAV Context.</param>
/// <param name="path">Encoded path relative to WebDAV root folder.</param>
/// <returns>File instance or null if physical file is not found in file system.</returns>
public static async Task <DavFile> GetFileAsync(DavContext context, string path)
{
string filePath = context.MapPath(path);
FileInfo file = new FileInfo(filePath);
// This code blocks vulnerability when "%20" folder can be injected into path and file.Exists returns 'true'.
if (!file.Exists || string.Compare(file.FullName.TrimEnd(System.IO.Path.DirectorySeparatorChar), filePath, StringComparison.OrdinalIgnoreCase) != 0)
{
return(null);
}
DavFile davFile = new DavFile(file, context, path);
davFile.serialNumber = await file.GetExtendedAttributeAsync <int?>("SerialNumber") ?? 0;
davFile.TotalContentLength = await file.GetExtendedAttributeAsync <long?>("TotalContentLength") ?? 0;
return(davFile);
}
/// <summary>
/// Initializes a new instance of this class.
/// </summary>
/// <param name="fileSystemInfo">Corresponding file or folder in the file system.</param>
/// <param name="context">WebDAV Context.</param>
/// <param name="path">Encoded path relative to WebDAV root folder.</param>
protected DavHierarchyItem(FileSystemInfo fileSystemInfo, DavContext context, string path)
{
this.fileSystemInfo = fileSystemInfo;
this.context = context;
this.Path = path;
}
/// <summary>
/// Initializes a new instance of this class.
/// </summary>
/// <param name="file">Corresponding file in the file system.</param>
/// <param name="context">WebDAV Context.</param>
/// <param name="path">Encoded path relative to WebDAV root folder.</param>
protected DavFile(FileInfo file, DavContext context, string path)
: base(file, context, path)
{
this.fileInfo = file;
}
/// <summary>
/// Initializes a new instance of this class.
/// </summary>
/// <param name="directory">Corresponding folder in the file system.</param>
/// <param name="context">WebDAV Context.</param>
/// <param name="path">Encoded path relative to WebDAV root folder.</param>
protected DavFolder(DirectoryInfo directory, DavContext context, string path)
: base(directory, context, path.TrimEnd('/') + "/")
{
dirInfo = directory;
}