EmbeddedResourceFileSystem2.cs

EmbeddedResourceFileSystem2.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using Microsoft.Owin.FileSystems;

public class EmbeddedResourceFileSystem2 : IFileSystem
{
    protected readonly EmbeddedResourceFileSystem _fileSystem;

    protected readonly string[] _resourceNames;

    protected readonly string _baseNamespace;

    public EmbeddedResourceFileSystem2(string baseNamespace)
    {
        _fileSystem = new EmbeddedResourceFileSystem(baseNamespace);
        _baseNamespace = baseNamespace;
        _resourceNames = Assembly.GetCallingAssembly().GetManifestResourceNames();
    }

    public bool TryGetFileInfo(string subpath, out IFileInfo fileInfo)
    {
        if (string.IsNullOrEmpty(subpath) || subpath[0] != '/')
        {
            fileInfo = null;
            return false;
        }

        var fixpath = (_baseNamespace + "." + subpath.Substring(1).Replace('/', '.').Replace('-', '_')).ToLower();
        fixpath = _resourceNames.FirstOrDefault(name => name.ToLower().Replace('-', '_') == fixpath);
        if (fixpath == null)
        {
            fileInfo = null;
            return false;
        }

        fixpath = "/" + fixpath.Substring(_baseNamespace.Length + 1);
        return _fileSystem.TryGetFileInfo(fixpath, out fileInfo);
    }

    public bool TryGetDirectoryContents(string subpath, out IEnumerable<IFileInfo> contents)
    {
        if (subpath == "/")
        {
            var fileInfo = default(IFileInfo);
            var found = this.TryGetFileInfo("/index.html", out fileInfo);
            if (found)
            {
                contents = new[] { fileInfo };
                return true;
            }

        }
        contents = Enumerable.Empty<IFileInfo>();
        return false;
    }
}