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namespace System.Web.Mvc {
using System;
using System.Diagnostics.CodeAnalysis;
using System.Web.Mvc.Resources;
[SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes", Justification = "Unsealed because type contains virtual extensibility points.")]
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = false)]
public class RequireHttpsAttribute : FilterAttribute, IAuthorizationFilter {
public virtual void OnAuthorization(AuthorizationContext filterContext) {
if (filterContext == null) {
throw new ArgumentNullException("filterContext");
}
if (!filterContext.HttpContext.Request.IsSecureConnection) {
HandleNonHttpsRequest(filterContext);
}
}
protected virtual void HandleNonHttpsRequest(AuthorizationContext filterContext) {
// only redirect for GET requests, otherwise the browser might not propagate the verb and request
// body correctly.
if (!String.Equals(filterContext.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase)) {
throw new InvalidOperationException(MvcResources.RequireHttpsAttribute_MustUseSsl);
}
// redirect to HTTPS version of page
string url = "https://" + filterContext.HttpContext.Request.Url.Host + filterContext.HttpContext.Request.RawUrl;
filterContext.Result = new RedirectResult(url);
}
}
}
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