Howto allow "Illegal characters in path"?

user_54115 0
Viewed 31073

I have a MVC.NET application with one route as follows:

routes.MapRoute("member", "member/{id}/{*name}", new { controller = "member", action = "Details", id = "" }, new { id = @"\d+" });

Thus, a link could be something like this: http://domain/member/123/any_kind_of_username

This works fine in general but if the path contains illegal characters (e.g. a double qoute: http://domain/member/123/my_"user"_name) I get a "System.ArgumentException: Illegal characters in path."

After much googling the best suggestions seems to be to make sure that the url doesn't contain any such characters. Unfortunately, that is out of my control in this case.

Is there a way to work around this?

routing asp.net-mvc
4 Answers

Turns out you could avoid this by setting allowDoubleEscaping="false" in for requestFiltering in web.Config. I.e:

<configuration>
  <system.webServer>
    <security>
      <requestFiltering allowDoubleEscaping="false" />
    </security>
  </system.webServer>
</configuration>

Perhaps not the perfect solution (any suggestions for a better one is much appreciated), but it solves the problem.

user_541150

You should URL-encode the URL at the client end before submitting it. Try using the UrlHelper.Encode method.

user_1748430
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