public static MvcHtmlString ActionLink(this HtmlHelper helper, string LinkText, string actionName, string controllerName, string protocol, string hostName, string fragment, RouteValueDictionary routeValues, IDictionary <string, object> htmlAttributes, bool generateToken)
{
RequestContext rc = helper.ViewContext.RequestContext;
RouteCollection rtCollection = helper.RouteCollection;
if (generateToken == true)
{
string token = TokenUtility.generateUrlToken(controllerName, actionName, routeValues, tokenPassword);
routeValues.Add("urltoken", token);
}
string link = HtmlHelper.GenerateLink(rc, rtCollection, LinkText, null, actionName, controllerName, protocol, hostName, fragment, routeValues, htmlAttributes);
MvcHtmlString mString = MvcHtmlString.Create(link);
return(mString);
}
public static MvcHtmlString ActionLink(this HtmlHelper helper, string LinkText, string actionName, string controllerName, bool generateToken)
{
RequestContext rc = helper.ViewContext.RequestContext;
RouteCollection rtCollection = helper.RouteCollection;
RouteValueDictionary rvd = new RouteValueDictionary();
if (generateToken == true)
{
string token = TokenUtility.generateUrlToken(controllerName, actionName, rvd, tokenPassword);
rvd.Add("urltoken", token);
}
string link = HtmlHelper.GenerateLink(rc, rtCollection, LinkText, null, actionName, controllerName, rvd, null);
MvcHtmlString mString = MvcHtmlString.Create(link);
return(mString);
}
//This is the extended method of Html.ActionLink.This class has the extended methods for the 10 overloads of this method
//All the overloaded method applys the same logic excepts the parameters passed in
public static MvcHtmlString ActionLink(this HtmlHelper helper, string LinkText, string actionName, bool generateToken)
{
RequestContext rc = helper.ViewContext.RequestContext;
RouteCollection rtCollection = helper.RouteCollection;
RouteValueDictionary rvd = new RouteValueDictionary();
if (generateToken == true)
{
//Call the generateUrlToken method which create the hash
string token = TokenUtility.generateUrlToken("", actionName, rvd, tokenPassword);
//The hash is added to the route value dictionary
rvd.Add("urltoken", token);
}
//the link is formed by using the GenerateLink method.
string link = HtmlHelper.GenerateLink(rc, rtCollection, LinkText, null, actionName, null, rvd, null);
MvcHtmlString mString = MvcHtmlString.Create(link);
return(mString);
}
public static MvcHtmlString ActionLink(this HtmlHelper helper, string LinkText, string actionName, object routeValues, object htmlAttributes, bool generateToken)
{
RequestContext rc = helper.ViewContext.RequestContext;
RouteCollection rtCollection = helper.RouteCollection;
RouteValueDictionary rvd = new RouteValueDictionary(routeValues);
if (generateToken == true)
{
string token = TokenUtility.generateUrlToken("", actionName, rvd, tokenPassword);
rvd.Add("urltoken", token);
}
IDictionary <string, object> attrib;
attrib = getDictionaryFromObject(htmlAttributes);
//attrib.Add("attributes", htmlAttributes);
string link = HtmlHelper.GenerateLink(rc, rtCollection, LinkText, null, actionName, null, rvd, attrib);
MvcHtmlString mString = MvcHtmlString.Create(link);
return(mString);
}
public override void OnAuthorization(AuthorizationContext filterContext)
{
// basic athorization check
base.OnAuthorization(filterContext);
if (filterContext.HttpContext != null)
{
//Http referrer check and do the redirection if error occurs
//It uses a controller named ErrorViewController and action named DisplayHttpReferrerError
//These controller and action need to be present in your project in the project name space
if (filterContext.HttpContext.Request.UrlReferrer == null)
{
filterContext.Result = new RedirectToRouteResult(
new System.Web.Routing.RouteValueDictionary
{
{ "langCode", filterContext.RouteData.Values["langCode"] },
{ "controller", "ErrorView" },
{ "action", "DisplayHttpReferrerError" },
{ "ReturnUrl", filterContext.HttpContext.Request.RawUrl },
});
}
}
/*Add code here to check the domain name the request come from*/
// The call for validation of URL hash and do the redirection if error occurs
//It uses a controller named ErrorViewController and action named DisplayURLError
//These controller and action need to be present in your project in the project name space
if (TokenUtility.validateToken(filterContext.RequestContext.RouteData.Values, ActionLinkExtensions.tokenPassword) == false)
{
filterContext.Result = new RedirectToRouteResult(
new System.Web.Routing.RouteValueDictionary
{
{ "langCode", filterContext.RouteData.Values["langCode"] },
{ "controller", "ErrorView" },
{ "action", "DisplayURLError" },
{ "ReturnUrl", filterContext.HttpContext.Request.RawUrl }
});
}
}
