Absolute URL from base + relative URL in C#

Question

I have a base URL :

http://my.server.com/folder/directory/sample

And a relative one :

../../other/path

How to get the absolute URL from this ? It's pretty straighforward using string manipulation, but I would like to do this in a secure way, using the Uri class or something similar.

It's for a standard a C# app, not an ASP.NET one.

Mark Cidade · Accepted Answer · 2008-10-01 00:19:11Z

50

var baseUri = new Uri("http://my.server.com/folder/directory/sample");
var absoluteUri = new Uri(baseUri,"../../other/path");

OR

Uri uri;
if ( Uri.TryCreate("http://base/","../relative", out uri) ) doSomething(uri);

edited Oct 1, 2008 at 0:19

answered Sep 24, 2008 at 18:41

Mark Cidade

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4 Comments

Nordin Over a year ago

May I ask, is there any JavaScript equivalent of the code above?

greenoldman Over a year ago

One point noting, that for some unknown reason new Uri decodes html entities, and if this makes a difference, this will lead to incorrect URL. For example I have a page, lets say hello%2Fworld.html page. After making it absolute I get hello/world.html which is of course incorrect.

Martin Capodici Over a year ago

42 votes but it doesn't work. First snipped yields: my.server.com/other/path which is missing the /folder/ part.

Mark Cidade Over a year ago

@MartinCapodici The OP specified a different base URI than for what you are specifying. In your case, you can can use "http://my.server.com/folder/directory/sample/" as the base URI.

Matas Vaitkevicius · Accepted Answer · 2016-07-19 15:22:58Z

0

Some might be looking for Javascript solution that would allow conversion of urls 'on the fly' when debugging

var absoluteUrl = function(href) {
    var link = document.createElement("a");
    link.href = href;
    return link.href;
}

use like:

absoluteUrl("http://google.com")

http://google.com/

or

absoluteUrl("../../absolute")

http://stackoverflow.com/absolute

answered Jul 19, 2016 at 15:22

Matas Vaitkevicius

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