/// <summary>
/// Safely adds a cookie to client browser. The existing cookie (by name) will be overwritten
/// </summary>
/// <param name="context"></param>
/// <param name="cookieName"></param>
/// <param name="cookieValue"></param>
/// <param name="expiredInDay"></param>
public static void AddCookie(this HttpContextBase context, string cookieName, string cookieValue, int expiredInDay = 90)
{
HttpCookie cookie = new HttpCookie(cookieName);
cookie.Value = cookieValue;
cookie.Expires = DateTime.Now.AddDays(expiredInDay);
context.AddCookie(cookie);
}
/// <summary>
/// Delete a cookie specified by <c>cookieName</c>
/// </summary>
/// <param name="context"></param>
/// <param name="cookieName"></param>
public static void DeleteCookie(this HttpContextBase context, string cookieName)
{
if (context.Request.Cookies[cookieName] != null)
{
HttpCookie cookie = new HttpCookie(cookieName)
{
Expires = DateTime.Now.AddDays(-1d)
};
context.AddCookie(cookie);
}
}
private void SaveSessionObjectDataToCookie(SessionData data, HttpContextBase context)
{
//for performance reason, save session object data to http context
SaveSessionObjectDataToHttpContext(data, context);
BinaryFormatter bin = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
bin.Serialize(stream, data);
string dataString = Convert.ToBase64String(stream.ToArray());
stream.Close();
string sessionId = data.Username;
string ticket = string.Format("{0}{1}", DateTime.Now.Ticks, Guid.NewGuid());
string chksum = CreateChecksum(dataString, ticket, sessionId);
string cookieValue = string.Format("{0}*****{1}*****{2}", dataString, ticket, chksum);
context.AddCookie(_sessionDataCookieName, cookieValue);
}
