我遇到了同样的问题。就我而言,问题是我将 Context.User 设置为 GenericPrincipal 而不是 RolePrincipal。所以而不是:
this.Context.User = new GenericPrincipal(customIdentity, roles);
这对我来说是固定的:
HttpCookie roleCookie = this.Context.Request.Cookies[Roles.CookieName];
if (IsValidAuthCookie(roleCookie))
{
this.Context.User = new RolePrincipal(customIdentity, roleCookie.Value);
}
else
{
this.Context.User = new RolePrincipal(customIdentity);
var x = this.Context.User.IsInRole("Visitor"); // do this to cache the results in the cookie
}
IsValidAuthCookie方法检查 null 和空:
private static bool IsValidAuthCookie(HttpCookie authCookie)
{
return authCookie != null && !String.IsNullOrEmpty(authCookie.Value);
}
更新:升级到 MVC5 .NET 4.5 roleManager 后停止工作(不在 cookie 中保存角色),所以必须自己保存:
HttpCookie roleCookie = filterContext.HttpContext.Request.Cookies[Roles.CookieName];
if (IsValidAuthCookie(roleCookie))
{
filterContext.Principal = new RolePrincipal(customIdentity, roleCookie.Value);
RolePrincipal rp = (RolePrincipal)filterContext.Principal;
if (!rp.IsRoleListCached) // check if roles loaded properly (if loads old cookie from another user for example, roles won't be loaded/cached).
{
// roles not loaded. Delete and save new
Roles.DeleteCookie();
rp.IsInRole("Visitor"); // load Roles
SaveRoleCookie(rp, filterContext);
}
}
else
{
filterContext.Principal = new RolePrincipal(customIdentity);
filterContext.Principal.IsInRole("Visitor"); // do this to cache the results in the cookie.
SaveRoleCookie(filterContext.Principal as RolePrincipal, filterContext);
}
保存角色Cookie
private void SaveRoleCookie(RolePrincipal rp, AuthenticationContext filterContext)
{
string s = rp.ToEncryptedTicket();
const int MAX_COOKIE_LENGTH = 4096;
if (string.IsNullOrEmpty(s) || s.Length > MAX_COOKIE_LENGTH)
{
Roles.DeleteCookie();
}
else
{
HttpCookie cookie = new HttpCookie(Roles.CookieName, s);
cookie.HttpOnly = true;
cookie.Path = Roles.CookiePath;
cookie.Domain = Roles.Domain;
if (Roles.CreatePersistentCookie)
cookie.Expires = rp.ExpireDate;
cookie.Secure = Roles.CookieRequireSSL;
filterContext.HttpContext.Response.Cookies.Add(cookie);
}
}
将此代码放在 AuthenticationFilter 上并全局注册。见这里。