Question

I am trying to use a controller as an image handler, but how do i pass in a path to it?

Right now it looks like this (works for images without a path):

public void GetImage(string parameter)
{
    var imageHandler = UnityGlobalContainer.Container.Resolve<IImageHandler>();
    imageHandler.ProcessRequest(parameter);
}

But if i try to send in the path folder1\folder2\folder3\picture.jpg then it fails.

@Html.ActionLink("Show", "GetImage", "Utility", new { parameter = @"folder1\folder2\folder3\picture.jpg" }, new { })

produces this:
http://localhost:58359/Utility/GetImage/folder1%5Cfolder2%5Cfolder3%5Cpicture.jpg

and that leads to:
HTTP Error 400 – Bad Request.

How can i pass in a path to the controller using the normal mvc approach?
(I am using backward slashes and not forward slashes)
I have also tested using HttpUtility.UrlEncode on the parameter.

Answer 1

According to your code: The produced link in the html page should be:
http://localhost:58359/Utility/GetImage?parameter=folder1%5Cfolder2%5Cfolder3%5Cpicture.jpg
and the parameter variable should be correctly set to “folder1\folder2\folder3\picture.jpg” in the action method.

Notice that you might be vulnerable to directory traversal here.