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[英]ASP.NET Forms Auth For Downstream WCF Authentication and Authorization
[英]WCF Forms Authentication authorization using ASP.NET roles = Access Denied?
我有一个基本的WPF应用程序,客户端将数据写入数据库。 我在服务器2012年计算机上使用IIS来承载Web服务。 我正在尝试实现Forms身份验证,并且一切正常(从客户端通过xaml.cs中的用户名和密码来对我的ASP.NET用户进行身份验证,然后再对其进行身份验证。然后,我希望实现ASP.NET角色授权不同的命令(提交请求,删除请求等)。我们应该使用的方法是“ [PrincipalPermission(SecurityAction.Demand,Role =“ Allowed”)]“
从理论上讲,当我尝试按下按钮时,它应该仅使用在客户端中传递的凭据(我已经确认有效),并且应该检查我传递的用户是否担任该角色,如果允许,则允许,如果不允许,否认。 但是,无论用户是否处于角色中,它仍然会显示“访问被拒绝”。
有什么想法吗?
using System;
using System.Collections.Generic;
using System.Data.Entity.Validation;
using System.Diagnostics;
using System.Linq;
using System.ServiceModel;
using System.Security.Permissions;
using RequestRepository;
using System.Threading;
using System.Web;
namespace RequestServiceLibrary
{
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class RequestService : IRequestService
{
private List<Request> requests = new List<Request>();
private RequestLibraryEntities context = new RequestLibraryEntities();
[PrincipalPermission(SecurityAction.Demand, Role = "Allowed")]
public string SubmitRequest(Request req)
{
Thread.CurrentPrincipal = HttpContext.Current.User;
if (context.Requests.Count() == 0)
populateRequests();
req.Id = Guid.NewGuid().ToString();
req.TimeSubmitted = DateTime.Now;
requests.Add(req);
addRequest(req);
return req.Id;
}
[PrincipalPermission(SecurityAction.Demand, Role = "Allowed")]
public bool UpdateRequest(Request req)
{
Thread.CurrentPrincipal = HttpContext.Current.User;
bool returnval = false;
try
{
var getobject = requests.Find(x => x.Id.Equals(req.Id));
if (getobject != null) //checks to make sure the object isn't empty
{
getobject.Username = req.Username;
getobject.Password = req.Password;
getobject.RequestedResource = req.RequestedResource;
getobject.TimeSubmitted = req.TimeSubmitted;
}
//Find the request object in the database
var Id = Guid.Parse(req.Id);
var rl = context.Requests.Find(Id);
//Update that object with the values from req
rl.Username = req.Username;
rl.Password = req.Password;
rl.RequestedResource = req.RequestedResource;
rl.TimeTransmitted = req.TimeSubmitted;
context.SaveChanges();
returnval = true;
return returnval;
}
catch (Exception) { return returnval; }
}
public List<Request> GetRequests()
{
populateRequests();
return requests;
}
[PrincipalPermission(SecurityAction.Demand, Role = "Disallowed")]
public bool RemoveRequest(string id)
{
bool rval = false;
try
{
Request req = requests.Find(x => x.Id.Equals(id));
requests.Remove(req);
rval = delRequest(req);
return rval;
}
catch (Exception)
{
return false;
}
}
private void populateRequests()
{
requests = new List<Request>();
var rl = context.Requests.ToList();
foreach (var r in rl)
{
requests.Add(new Request()
{
Id = r.Id.ToString(),
Password = r.Password,
RequestedResource = r.RequestedResource,
TimeSubmitted = r.TimeTransmitted,
Username = r.Username
});
}
}
private void addRequest(Request req)
{
try
{
var r = context.Requests.Create();
r.Id = Guid.Parse(req.Id);
r.Username = req.Username;
r.Password = req.Password;
r.RequestedResource = req.RequestedResource;
r.TimeTransmitted = req.TimeSubmitted;
context.Requests.Add(r);
context.SaveChanges();
}
catch (DbEntityValidationException dbEx)
{
foreach (var validationErrors in dbEx.EntityValidationErrors)
{
foreach (var validationError in validationErrors.ValidationErrors)
{
Console.WriteLine("Property: {0} Error: {1}", validationError.PropertyName, validationError.ErrorMessage);
}
}
}
}
private bool delRequest(Request req)
{
Guid Id = Guid.Parse(req.Id);
var r = context.Requests.Create();
r.Id = Id;
var rl = context.Requests.Find(Id);
try
{
context.Requests.Remove(rl);
context.SaveChanges();
return true;
}
catch (Exception) { return false; }
}
}
}
为了能够以这种方式使用PrincipalPermissionAttribute
,您需要首先将Thread.CurrentPrincipal
设置为具有适当角色的Principal(在这种情况下为“允许”)。
例如,您可以使用ClientRoleProvider进行此操作,或简单地手动创建Principal(可能使用从Web服务检索的角色)。
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