IFileProvider returning 01/01/0001 for last modified date of all files in Physical Provider

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In startup I have set my IFileProvider in configure services as follows:

            IFileProvider physicalProvider = new PhysicalFileProvider(Directory.GetParent(env.ContentRootPath).ToString());
        services.AddSingleton<IFileProvider>(physicalProvider);

Now when I go to use to find the files last modified date in my controller I get date 01/01/0001 for all files. My code is as follows:

    private readonly IWebHostEnvironment env;
    private IFileProvider _fileProvider;
    public IConfiguration Configuration { get; }

    public MainReviewController(LoginDBContext context, IConfiguration configuration, IWebHostEnvironment env, IFileProvider fileProvider)
    {
        _context = context;
        connectionString = configuration["ConnectionStrings:DBContext"];
        this.env = env;
        _fileProvider = fileProvider;
    }

After I use dependency injection to use the file provider I use the following code in my post request

                    var rootPath = Path.Combine(Directory.GetParent(env.ContentRootPath).ToString(), "ARMSFiles");

                foreach (var file in mainreviewdocuments)
                {
                    var filePath = Path.Combine(rootPath, file.DOCUMENT_FULL_PATH);
                    System.Diagnostics.Debug.WriteLine(filePath);
                    System.Diagnostics.Debug.WriteLine(_fileProvider.GetFileInfo(filePath).LastModified);
                }

Any ideas on this? In my startup i use dependency injection as well to ensure i am using the same env variable as my controller so the directories should line up. It is basically a folder outside of my root folder since that is a bit more secure and I use it for a webdav when I actually deploy this.

asp.net-core asp.net-mvc c#
1 Answers

I use below code, and get the value of LastModified;

IDirectoryContents dirContents = _fileProvider.GetDirectoryContents("ARMSFiles");
IFileInfo fileInfo = _fileProvider.GetFileInfo("ARMSFiles/TextFile.txt");

Test Result

enter image description here

enter image description here

Test Code:

Tips: below code just for test, pls don't use it in your production environment directly.

1. Test Method

public IActionResult TestFileProvider()
{
    // the static root path, just for test
    string filePath = @"D:\M***e\F***e\TestCookie\ARMSFiles\TextFile.txt";

    IDirectoryContents dirContents = _fileProvider.GetDirectoryContents("ARMSFiles");
    IFileInfo fileInfo = _fileProvider.GetFileInfo("ARMSFiles/TextFile.txt");
    System.Diagnostics.Debug.WriteLine(filePath);
    System.Diagnostics.Debug.WriteLine(fileInfo.LastModified);
    return Ok(fileInfo.LastModified);
}

2. ConfigureServices Method

public void ConfigureServices(IServiceCollection services)
{
    //IFileProvider physicalProvider = new PhysicalFileProvider(Directory.GetParent(env.ContentRootPath).ToString());
    var physicalProvider = _env.ContentRootFileProvider;
    var embeddedProvider = new EmbeddedFileProvider(Assembly.GetEntryAssembly());
    var compositeProvider = new CompositeFileProvider(physicalProvider, embeddedProvider);
    services.AddSingleton<IFileProvider>(compositeProvider);
    ...
    services.AddControllersWithViews();

}

3. Configure Method

app.UseStaticFiles();
app.UseStaticFiles(new StaticFileOptions
    {
        FileProvider = new PhysicalFileProvider(
        Path.Combine(Directory.GetCurrentDirectory(), "ARMSFiles")),
        RequestPath = "/ARMSFiles"
    });
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