框架技术细节

1.全局异常判别

[AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
    public class EwHandleErrorAttribute : HandleErrorAttribute
    {
        public override void OnException(ExceptionContext filterContext)
        {
            if (ICTConfiguration.Debug)
            {
                base.OnException(filterContext);
                return;
            }

            if (filterContext.ExceptionHandled)
            {
                return;
            }
            if (filterContext.HttpContext.Response.IsRequestBeingRedirected)
            {
                return;
            }
            var httpCode = new HttpException(null, filterContext.Exception).GetHttpCode();
            if (!ExceptionType.IsInstanceOfType(filterContext.Exception))
            {
                return;
            }
            if (new HttpException(null, filterContext.Exception).GetHttpCode() != 500)
            {
                return;
            }
            ExceptionHelper.LogException(filterContext.Exception, HttpContext.Current);
            bool isAjaxCall = string.Equals("XMLHttpRequest", filterContext.HttpContext.Request.Headers["x-requested-with"],
                                       StringComparison.OrdinalIgnoreCase);
            if (isAjaxCall)
            {
                string message = filterContext.Exception.Message;
                if (filterContext.Exception is HttpRequestValidationException)
                {
                    message = "包含非法字符";
                }

                filterContext.Result = new JsonResult()
                {
                    JsonRequestBehavior = JsonRequestBehavior.AllowGet,
                    Data = new
                    {
                        succeed = false,
                        ret = httpCode,
                        msg = message
                    }
                };
            }
            else
            {
                var controllerName = (string)filterContext.RouteData.Values["controller"];
                var actionName = (string)filterContext.RouteData.Values["action"];
                var model = new HandleErrorInfo(filterContext.Exception, controllerName, actionName);
                filterContext.Result = new ViewResult()
                 {
                     ViewName = View,
                     MasterName = Master,
                     ViewData = new ViewDataDictionary(model),
                     TempData = filterContext.Controller.TempData
                 };
                filterContext.HttpContext.Response.Redirect("/500.html");
            }
            filterContext.ExceptionHandled = true;
            filterContext.HttpContext.Response.Clear();
            filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;
            filterContext.HttpContext.Server.ClearError();
        }
    }

2.判别当前注册用户是否加入企业（包括是否登录）：过滤器

    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
    public class JoinEnterpriseAttribute : TokenAuthorizeAttribute
    {
        public WorkContext WorkContext
        {
            get
            {
                var workContext = (WorkContext)System.Web.HttpContext.Current.Items["__current__workcontext"];
                if (workContext == null)
                {
                    workContext = new WorkContext();
                    System.Web.HttpContext.Current.Items["__current__workcontext"] = workContext;
                }
                return workContext;
            }
        }

        public override void OnAuthorization(System.Web.Mvc.AuthorizationContext filterContext)
        {
            base.OnAuthorization(filterContext);
            if (!filterContext.HttpContext.Response.IsRequestBeingRedirected)
            {
                var entAuths = (EntAuthAttribute[])filterContext.ActionDescriptor.GetCustomAttributes(typeof(EntAuthAttribute), false);
                var centAuths = filterContext.ActionDescriptor.ControllerDescriptor.GetCustomAttributes(typeof(EntAuthAttribute), true);
                if (entAuths.Length == 0 && centAuths.Length == 0)
                {
                    if (WorkContext != null && WorkContext.UserInfo != null && (WorkContext.CompanyId == 0 || string.IsNullOrWhiteSpace(WorkContext.UserInfo.Name)))
                    {
                        filterContext.HttpContext.Response.Redirect("/auth", true);
                    }
                }
            }
        }

    }

 [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
    public class TokenAuthorizeAttribute : AuthorizeAttribute
    {
        public WorkContext WorkContext
        {
            get
            {
                var workContext = (WorkContext)System.Web.HttpContext.Current.Items["__current__workcontext"];
                if (workContext == null)
                {
                    workContext = new WorkContext();
                    System.Web.HttpContext.Current.Items["__current__workcontext"] = workContext;
                }
                return workContext;
            }
        }

        public override void OnAuthorization(System.Web.Mvc.AuthorizationContext filterContext)
        {
            if (WorkContext == null || WorkContext.UserInfo == null || WorkContext.UserInfo.UserID == 0)
            {
                if (filterContext == null)
                {
                    throw new ArgumentNullException("filterContext");
                }
                if (filterContext.HttpContext.Request.IsAjaxRequest())
                {
                    filterContext.HttpContext.Response.StatusCode = 401;
                    string strUrl = ConfigurationManager.AppSettings.Get("PassportDoMain");
                    if (filterContext.HttpContext.Request.Url != null)
                    {
                        string path = filterContext.HttpContext.Request.Url.ParserUrl();
                        strUrl += "?returnUrl=" + path;
                    }
                    filterContext.Result = Ajax.Json(new { succeed = false, ret = 401, url = strUrl }, JsonRequestBehavior.AllowGet);
                    return;
                }
                if (filterContext.HttpContext.Request.Url != null)
                {
                    string path = filterContext.HttpContext.Request.Url.ParserUrl();
                    string strUrl = ConfigurationManager.AppSettings.Get("PassportDoMain") + "?returnUrl={0}";
                    filterContext.HttpContext.Response.Redirect(string.Format(strUrl, HttpUtility.UrlEncode(path)), true);
                    filterContext.HttpContext.Response.End();
                }
            }
        }

    }