朴素的标题:MVC中权限管理实践
基于MVC的web项目最好的权限控制方式我认为是对Action的控制,实现思路记录于此,权限管理分成两个部分授权、认证。
一、授权
1、读取当前项目中的所有需要控制的Action
///
/// 获取当前程序集内的所有Action
///
/// 当前程序集内的所有Action
/// author:lorne date:2016-01-13
public List GetAllAction()
{
var actions = new List();
var assembly = Assembly.GetExecutingAssembly();//获取当前程序集
#region 读取XML获取Action说明
Dictionary<string, string> notes = new Dictionary<string, string>();
try
{
//读取程序集的XML文件
var doc = new XmlDocument();
doc.Load(Server.MapPath(string.Format("~/bin/{0}.xml", assembly.FullName.Substring(0, assembly.FullName.IndexOf(",")))));
var membersInfo = doc.FirstChild["members"];
JArray members = (JArray)JsonConvert.DeserializeObject(JsonConvert.SerializeXmlNode(doc.LastChild["members"]))["members"]["member"];
foreach (var item in members)
{
//以key-value形式存储
notes.Add(item.Value<string>("@name"), item.Value<string>("summary").Trim());
}
}
catch (Exception)
{
}
#endregion
foreach (var type in assembly.GetTypes())
{
if (type.BaseType == typeof(Controller))//取出Controller
{
var methods = type.GetMethods();
foreach (var method in methods)
{
if (method.ReturnType == typeof(ActionResult) || (method.ReturnType.BaseType != null && method.ReturnType.BaseType == typeof(ActionResult)))//取出Action
{
//允许匿名访问的不计入
if (method.GetCustomAttributes(typeof(AllowAnonymousAttribute)).Count() == 0)
{
var info = new ActionInfo();
info.Action = method.Name;
info.ActionDesc = notes.ContainsKey(string.Format("M:{0}.{1}.{2}", type.Namespace, type.Name, method.Name)) ? notes[string.Format("M:{0}.{1}.{2}", type.Namespace, type.Name, method.Name)] : "";
info.Controller = type.FullName;
info.ControllerDesc = notes.ContainsKey(string.Format("T:{0}.{1}", type.Namespace, type.Name)) ? notes[string.Format("T:{0}.{1}", type.Namespace, type.Name)] : "";
actions.Add(info);
}
}
}
}
}
return actions;
}
2、保存授权设置,这个没有具体的实现,应该不会有太大的难度
二、认证
1、使用过滤器(继承ActionFilterAttribute)处理Action请求,重写OnActionExecuting
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
//获取当前用户所拥有的权限
List right = new List() { new ActionInfo() { Action = "A1", Controller = "RBAC.Controllers.AController" }, new ActionInfo() { Action = "A2", Controller = "RBAC.Controllers.AController" } };
//白名单
var whiteAction = GetWhiteAction();
//获取用户要请求的页面
ActionInfo context = new ActionInfo() { Action = filterContext.ActionDescriptor.ActionName, Controller = filterContext.Controller.ToString() };
//判断是否有权访问
if (!(whiteAction.Any(r => r.Action.Equals(context.Action, StringComparison.CurrentCultureIgnoreCase) && r.Controller.Equals(context.Controller, StringComparison.CurrentCultureIgnoreCase)) || right.Any(r => r.Action.Equals(context.Action, StringComparison.CurrentCultureIgnoreCase) && r.Controller.Equals(context.Controller, StringComparison.CurrentCultureIgnoreCase))))
{
filterContext.HttpContext.Response.Redirect("/Main/Msg");
}
}
2、在 Global中注册过滤器
GlobalFilters.Filters.Add(new AuthFilter());
3、给一些不需要授权的Action加上特性[AllowAnonymous],当然也可以自定义其他的特性
[AllowAnonymous]
public ActionResult Msg()
{
return View();
}
由此基本完成,也可以下载源码参考下。