Uploading file to file system

Question

I have seen so many working examples of File uploading with MVC.

However, I want to follow a different approach such that, I want a little abstraction as follows:

I want to introduce a FileService, and inject that to the controller as a dependency. Let the service upload the file and return me a UploadedFile object.

A problem I am having right now is to upload to correct place/directory in file system or application root.

In a controller, I have access to Server object which I can call Server.MapPath and it does the magic, below I cant access to that Object since it is not a Controller.

How can I upload to anywhere in file system or in project root below?

public class FileService : IFileService
{
    private const string UploadBase = "/Files";

    public File UploadFile(HttpPostedFileBase file)
    {
        if (file != null)
        {
            string folder = DateTime.Today.Month + "-" + DateTime.Today.Year;

            string finalFolder = Path.Combine(UploadBase, folder);

            if (!Directory.Exists(finalFolder))
            {
               return Directory.CreateDirectory(finalFolder);
            }


            var filename = UploadFile(file, directoryInfo.Name + "/");


            var newFile = new File { ContentType = file.ContentType, FilePath = filename, Filename = file.FileName };

            return newFile;

        }

        return null;
    }

An error is : The SaveAs method is configured to require a rooted path, and the path '9-2013/037a9ddf-7ffe-4131-b223-c4b5435d0fed.JPG' is not rooted.

If you need to map the virtual path to the physical path outside of controller, you can use HostingEnvironment.MapPath method. — Patryk Ćwiek
– Patryk Ćwiek, Commented Sep 26, 2013 at 12:00

Patryk Ćwiek · Accepted Answer · 2013-09-26 12:29:54Z

1

Re-stating what was noted in comments:

If you want to map the virtual path to the physical path outside of the controller, you can always use HostingEnvironment.MapPath method.

answered Sep 26, 2013 at 12:29

Patryk Ćwiek

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