How do I get the referrer URL in an ASP.NET MVC action?

Question

How do I get the referrer URL in an ASP.NET MVC action? I am trying to redirect back to the page before you called an action.

Bear in mind that not all user-agents (AKA browsers) will send the referrer information, and some may even fake it. — belugabob, Sep 24 '09 at 16:36

score 152 · Accepted Answer · answered Sep 24 '09 at 16:29

152

You can use Request.UrlReferrer to get the referring URL as well if you don't like accessing the Request.ServerVariables dictionary directly.

answered Sep 24 '09 at 16:29

derek lawless

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It is exactly what I need. Thank you, bro! – NoWar Sep 23 '16 at 12:12
`Request.UrlReferrer` is actually the URI but from there you can get everything you need regarding the referrer URL. (More about URI vs URL: https://stackoverflow.com/questions/176264/what-is-the-difference-between-a-uri-a-url-and-a-urn). – Miguel Feb 01 '19 at 19:57

score 20 · Answer 2 · edited Mar 15 '17 at 13:46

20

Request.ServerVariables["http_referer"]

Should do.

edited Mar 15 '17 at 13:46

demonplus

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answered Sep 24 '09 at 11:50

Daniel Elliott

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score 9 · Answer 3 · edited Jan 27 '12 at 10:11

9

You can use this

filterContext.RequestContext.HttpContext.Request.UrlReferrer.AbsolutePath

edited Jan 27 '12 at 10:11

Elzo Valugi

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answered Apr 08 '11 at 17:07

Navish Rampal

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This would work in a filter context, but not in the action context as the question asked for. – Jace Rhea Aug 30 '13 at 15:19

Andrey Burykin · Answer 4 · 2021-07-30T06:10:47.050

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You can pass referrer url to viewModel, in my opinion it's better approach than sharing via the state, try so:

public interface IReferrer
{
    String Referrer { get; set; }
}

...

public static MvcHtmlString HiddenForReferrer<TModel>(this HtmlHelper<TModel> htmlHelper) where TModel : IReferrer
{
    var str = htmlHelper.HiddenFor(hh => hh.Referrer);
    var referrer = HttpContext.Current.Request.UrlReferrer.AbsoluteUri;
    return new MvcHtmlString(str.ToHtmlString().Replace("value=\"\"", String.Format("value=\"{0}\"", referrer)));
}

...

@Html.HiddenForReferrer()

edited Jul 30 '21 at 06:10

answered Dec 23 '15 at 07:35

Andrey Burykin

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huh, never realized underscore by itself is a valid variable name. How 'bout that. – BVernon Feb 04 '18 at 02:58
@BVernon The real question is why anyone would use it that way. The only convention I am aware of with a single underscore for a name is to signify that it's just a placeholder for a variable you don't want or need. – Daniel Dec 10 '19 at 19:10
@Daniel I agree, fixed – Andrey Burykin May 21 '20 at 09:05

How do I get the referrer URL in an ASP.NET MVC action?

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