A CookieProxy class to access cookies in a strongly typed way:
using System;
using System.Linq;
using System.Web;
public class CookieProxy
{
public HttpRequest Request { get; set; }
public HttpResponse Response { get; set; }
public CookieProxy()
{
}
public CookieProxy(HttpRequest request, HttpResponse response)
{
this.Request = request;
this.Response = response;
}
public string GetCookieKey(string name)
{
return string.Format("{0}", name);
}
private string GetCookie(string name)
{
if (this.Response.Cookies.AllKeys.Contains(this.GetCookieKey(name)))
{
return this.Response.Cookies[this.GetCookieKey(name)].Value;
}
else
{
return this.Request.Cookies[this.GetCookieKey(name)] != null ? this.Request.Cookies[this.GetCookieKey(name)].Value : null;
}
}
private void SetCookie(string name, string value)
{
HttpCookie cookie = this.CreateCookie(name, value);
if (this.Response.Cookies.AllKeys.Contains(this.GetCookieKey(name)))
{
this.Response.Cookies.Set(cookie);
}
else
{
this.Response.Cookies.Add(cookie);
}
}
public HttpCookie CreateCookie(string name, string value)
{
HttpCookie cookie = new HttpCookie(GetCookieKey(name), value);
cookie.Path = this.Request.ApplicationPath;
cookie.Expires = DateTime.Now.AddYears(10);
return cookie;
}
// Sample cookie.
public string Culture
{
get { return this.GetCookie("Culture"); }
set { this.SetCookie("Culture", value); }
}
}
And a property in your application's base page:
private CookieProxy cookies;
public CookieProxy Cookies
{
get
{
if (this.cookies == null)
{
this.cookies = new CookieProxy(this.Request, this.Response);
}
return this.cookies;
}
}
How do I use it in a page?
string culture = this.Cookies.Culture;
How do I use it in a MasterPage or a UserControl?
string culture = this.Page.Cookies.Culture;
Oh, and there's a catch when you are using cookies with path - the path is case sensitive. Here's the code to get rid of the problem (place it in your Global.asax file):
void Application_BeginRequest(object sender, EventArgs e)
{
// If the application path casing is different from ApplicationPath, retrieve the url again with proper casing to avoid cookies problems.
// http://stackoverflow.com/questions/1121695/cookies-case-sensitive-paths-how-to-rewrite-urls
string url = HttpContext.Current.Request.Url.PathAndQuery;
string application = HttpContext.Current.Request.ApplicationPath;
if (!url.StartsWith(application))
{
HttpContext.Current.Response.Redirect(application + url.Substring(application.Length));
}
}
