如何将WebApi中的AuthorizationFilterAttribute与WebClient库一起使用? [英] How use AuthorizationFilterAttribute in WebApi with WebClient Library?
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问题描述
我使用以下代码进行授权(我在互联网上找到了该代码,并更改了以供使用)
I use the following code for Authorization (I found it in internet and change it for my use)
当我打电话给我的网址时,授权工作似乎可行
when i call my url seems authorization works
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false)]
public class ClientAuthorizationAttribute : AuthorizationFilterAttribute
{
private bool _active = true;
public ClientAuthorizationAttribute()
{
}
public ClientAuthorizationAttribute(bool active)
{
_active = active;
}
public override void OnAuthorization(HttpActionContext actionContext)
{
if (_active)
{
var identity = ParseAuthorizationHeader(actionContext);
if (identity == null)
{
Challenge(actionContext);
return;
}
if (!OnAuthorizeUser(identity.Name, identity.Password, actionContext))
{
Challenge(actionContext);
return;
}
var principal = new GenericPrincipal(identity, null);
Thread.CurrentPrincipal = principal;
base.OnAuthorization(actionContext);
}
}
protected virtual bool OnAuthorizeUser(string clientId, string authId, HttpActionContext actionContext)
{
return false;
}
protected virtual ClientAuthenticationIdentity ParseAuthorizationHeader(HttpActionContext actionContext)
{
string authHeader = null;
var auth = actionContext.Request.Headers.Authorization;
if (auth != null && auth.Scheme == "Basic")
authHeader = auth.Parameter;
if (string.IsNullOrEmpty(authHeader))
return null;
authHeader = Encoding.UTF8.GetString(Convert.FromBase64String(authHeader));
var tokens = authHeader.Split(':');
if (tokens.Length < 2)
return null;
return new ClientAuthenticationIdentity(tokens[0], tokens[1]);
}
void Challenge(HttpActionContext actionContext)
{
var host = actionContext.Request.RequestUri.DnsSafeHost;
actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Unauthorized);
actionContext.Response.Headers.Add("WWW-Authenticate", string.Format("Basic realm=\"{0}\"", host));
}
}
public class ClientAuthenticationIdentity : GenericIdentity
{
public ClientAuthenticationIdentity(string name, string password)
: base(name, "Basic")
{
Password = password;
}
public string Password { get; set; }
}
public class BasicAuthorizationAttribute : ClientAuthorizationAttribute
{
public BasicAuthorizationAttribute()
{ }
public BasicAuthorizationAttribute(bool active)
: base(active)
{ }
protected override bool OnAuthorizeUser(string clientId, string authId, HttpActionContext actionContext)
{
var businness = new WebServiceAuthBusiness();
return businness.Count(x => x.ClientID == clientId && x.AuthenticateID == authId) > 0;
}
}
}
在客户端中,我使用 WebClient 获取应用程序数据(不起作用)
in Client I use WebClient for Get application data (Does not work)
[BasicAuthorization]
public IList<Application> Get()
{
using (var client = new WebClient())
{
client.BaseAddress = _baseAddress;
client.Encoding = Encoding.UTF8;
client.UseDefaultCredentials = true; ???
client.Credentials = new NetworkCredential(clientId, authId); ???
var str = client.DownloadString("api/application/get");
return JsonConvert.DeserializeObject<List<Application>>(str);
}
}
我如何通过webClient为AuthorizationFilter发送用户名和密码?
How i can send username and password with webClient for AuthorizationFilter ???
推荐答案
如 c#角:
使用以下代码
public class BasicAuthenticationAttribute : AuthorizationFilterAttribute
{
public override void OnAuthorization(System.Web.Http.Controllers.HttpActionContext actionContext)
{
try
{
if (actionContext.Request.Headers.Authorization == null)
{
actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Unauthorized);
}
else
{
// Gets header parameters
string authenticationString = actionContext.Request.Headers.Authorization.Parameter;
string originalString = Encoding.UTF8.GetString(Convert.FromBase64String(authenticationString));
// Gets username and password
string usrename = originalString.Split(':')[0];
string password = originalString.Split(':')[1];
AuthsController auth = new AuthsController();
// Validate username and password
if (!auth.ValidateUser(usrename, password))
{
// returns unauthorized error
actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Unauthorized);
}
}
base.OnAuthorization(actionContext);
}
// Handling Authorize: Basic <base64(username:password)> format.
catch(Exception e)
{
actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Unauthorized);
}
}
}
在AuthsController.cs(实体框架)中
添加
[NonAction]
public bool ValidateUser(string userName, string password)
{
// Check if it is valid credential
var queryable = db.Auths
.Where(x => x.Name == userName)
.Where(x => x.Password == password);
if (queryable != null)
{
return true;
}
else
{
return false;
}
}
在WebApiConfig.cs
添加
config.Filters.Add(new BasicAuthenticationAttribute());
在需要基本授权的控制器中.
添加
[BasicAuthentication]
public class YourController : ApiController{.......}
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