public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (filterContext == null)
{
throw new ArgumentNullException("filterContext");
}
var cookieAuthenticationEnabled = string.IsNullOrEmpty(WebConfigurationManager.AppSettings.Get("CookieAuthenticationEnabled")) ? false : Convert.ToBoolean(WebConfigurationManager.AppSettings.Get("CookieAuthenticationEnabled"));
if (cookieAuthenticationEnabled)
{
return;
}
Uri redirectUrl;
switch (SPContextHelper.CheckRedirectionStatus(filterContext.HttpContext, out redirectUrl))
{
case RedirectionStatus.Ok:
return;
case RedirectionStatus.ShouldRedirect:
filterContext.Result = new RedirectResult(redirectUrl.AbsoluteUri);
break;
case RedirectionStatus.CanNotRedirect:
filterContext.Result = new ViewResult {
ViewName = "Error"
};
break;
}
}
public ActionResult Login(string returnUrl)
{
if (string.IsNullOrEmpty(returnUrl))
{
returnUrl = "/";
}
var cookieAuthenticationEnabled = !string.IsNullOrEmpty(WebConfigurationManager.AppSettings.Get("CookieAuthenticationEnabled")) && Convert.ToBoolean(WebConfigurationManager.AppSettings.Get("CookieAuthenticationEnabled"));
if (cookieAuthenticationEnabled)
{
Uri spHostUrl = GetSPHostUrl(returnUrl);
if (spHostUrl == null)
{
throw new Exception($"Unable to determine {SharePointContext.SPHostUrlKey}.");
}
return(new ChallengeResult(SPAddinAuthenticationDefaults.AuthenticationType, spHostUrl.ToString(), returnUrl));
}
Uri redirectUrl;
Uri returnUri;
if (!Uri.TryCreate(returnUrl, UriKind.RelativeOrAbsolute, out returnUri))
{
returnUri = null;
}
else
{
if (!returnUri.IsAbsoluteUri)
{
Uri.TryCreate(HttpContext.Request.Url, returnUrl, out returnUri);
}
}
switch (SPContextHelper.CheckRedirectionStatus(HttpContext, returnUri, out redirectUrl))
{
case RedirectionStatus.Ok:
return(new RedirectResult(returnUrl));
case RedirectionStatus.ShouldRedirect:
return(new RedirectResult(redirectUrl.AbsoluteUri));
case RedirectionStatus.CanNotRedirect:
return(new ViewResult {
ViewName = "Error"
});
}
return(new RedirectResult(returnUrl));
}
