添加基本HTTP认证到WCF REST服务 [英] Adding basic HTTP auth to a WCF REST service
本文介绍了添加基本HTTP认证到WCF REST服务的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个WCF HTTP REST服务，我扎入其与HTTP客户端在谁写自己的自定义HTTP不同的编程语言。
我想WWW验证基本认证支持添加到我的WCF服务。
我的方法是这样的：
[WebInvoke（UriTemplate =小工具，方法=POST）]
公众的XElement CreateWidget（的XElement E）
{
...
}
是否有可能我以某种方式过滤传入的HTTP请求，所以我可以检查一个有效的基本身份验证字符串它击中每个REST方法，如 CreateWidget 上面过吗？
注：我的验证信息是在我的数据库斯图尔
基本上我想在请求头检查此：授权：基本QWxhZGRpbjpvcGVuIHNlc2FtZQ == ，然后我可以自己分析该字符串并验证U / p在数据库
在Web.config文件如下：
＆LT;？XML版本=1.0＆GT？;
＆LT;结构＆gt; ＆LT;＆是connectionStrings GT;
＆LT;添加名称=DatabaseConnectionString的connectionString =数据源= \\ SQLEX $ P $干燥综合征;初始目录=数据库;集成安全性=真的providerName =System.Data.SqlClient的/＆GT;
＆LT; /＆是connectionStrings GT;
＆LT;＆的System.Web GT;
＆LT;编译调试=真targetFramework =4.0/＆GT;
＆LT;的httpRuntime的maxRequestLength =10485760/＆GT;
＆LT; /system.web> ＆LT; system.webServer＆GT;
＆LT;模块runAllManagedModulesForAllRequests =真正的＆GT;
＆LT;添加名称=UrlRoutingModuleTYPE =System.Web.Routing.UrlRoutingModule，System.Web程序，版本= 4.0.0.0，文化=中性公钥= b03f5f7f11d50a3a/＆GT;
＆LT; /模块＆gt;
＆LT; /system.webServer> ＆LT; system.serviceModel＆GT;
＆LT; serviceHostingEnvironment aspNetCompatibilityEnabled =真/＆GT;
＆LT; standardEndpoints＆GT;
＆LT; webHttpEndpoint＆GT;
＆LT; standardEndpoint NAME =helpEnabled =真automaticFormatSelectionEnabled =真maxReceivedMessageSize =1048576MAXBUFFERSIZE =1048576/＆GT;
＆LT; / webHttpEndpoint＆GT;
＆LT; / standardEndpoints＆GT;
＆LT; /system.serviceModel>＆LT; /结构＆gt;
解决方案
我也是在一个HTTP REST WCF服务感兴趣的自定义身份验证，终于得到它的工作。
话虽这么说，我的code会给你一种方式来获得它的工作，但我建议阅读本指南，解释了更深入的一切：的 HTTP：//wcfsecurityguide.$c$cplex.com/
首先，改变你的web.config的的System.Web 部分看起来是这样的：
＆LT;＆的System.Web GT;
＆LT;编译调试=真targetFramework =4.0/＆GT;
＆LT;的httpRuntime的maxRequestLength =10485760/＆GT;
＆LT;身份验证模式=无＆GT;＆LT; /认证＆GT;
＆LT;＆的HttpModules GT;
＆LT;添加名称=BasicAuthenticationModuleTYPE =YourNamespace.UserNameAuthenticator/＆GT;
＆LT; /＆的HttpModules GT;
＆LT; /system.web>
接着另外一个文件添加到您的项目：UserNameAuthenticator.cs
使用系统;
使用System.Collections.Generic;
使用System.Text;
使用的System.Web;
使用System.Web.Security;
使用System.Security.Principal;
使用System.ServiceModel.Activation;命名空间YourNamespace
{
公共类UserNameAuthenticator：IHttpModule的
{
公共无效的Dispose（）
{
} 公共无效初始化（HttpApplication的应用程序）
{
application.AuthenticateRequest + =新的EventHandler（this.OnAuthenticateRequest）;
application.AuthorizeRequest + =新的EventHandler（this.OnAuthorizationRequest）;
application.EndRequest + =新的EventHandler（this.OnEndRequest）;
} 公共BOOL CustomAuth（用户名字符串，字符串密码）
{
// TODO：在这里实现自定义的身份验证逻辑
返回true;
} 公共字符串[] GetCustomRoles（用户名字符串）
{
返回新的字符串[] {读，写};
} 公共无效OnAuthorizationRequest（对象源，EventArgs的EventArgs的）
{
HttpApplication的应用程序=（HttpApplication的）来源;
//如果你想从不同的认证授权办理
} 公共无效OnAuthenticateRequest（对象源，EventArgs的EventArgs的）
{
HttpApplication的应用程序=（HttpApplication的）来源;
//授权头如果选中present
字符串authHeader = app.Request.Headers [授权];
如果（！string.IsNullOrEmpty（authHeader））
{
字符串authStr = app.Request.Headers [授权];
如果（authStr == NULL || authStr.Length == 0）
{
//无凭据;匿名请求
返回;
}
authStr = authStr.Trim（）;
如果（authStr.IndexOf（基本，0）！= 0）
{
//头不正确的，我们不进行身份验证
返回;
} authStr = authStr.Trim（）;
字符串连接codedCredentials = authStr.Substring（6）;
字节[]德codedBytes = Convert.FromBase64String（EN codedCredentials）;
字符串s =新ASCIIEncoding（）的GetString（DE codedBytes）。
字符串[] =为userpass s.Split（新的char [] {'：'}）;
字符串的用户名=为userpass [0];
字符串密码=为userpass [1];
//用户对SqlMembershipProvider的验证
//如果被验证则角色从检索
//角色提供程序并创建一个通用的主
//通用主要被分配给用户上下文
//应用程序的
如果（CustomAuth（用户名，密码））
{
字符串[] =角色GetCustomRoles（用户名）;
app.Context.User =新的GenericPrincipal（新
GenericIdentity（用户名，会员提供商），角色）;
}
其他
{
DenyAccess（应用）;
返回;
}
}
其他
{
//授权头不是present
//响应的状态被设置为401和它结束
//结束请求将检查它是否是401，并添加
//认证头让客户端知道
//需要发送凭据进行身份验证
app.Response.Status code = 401;
app.Response.End（）;
}
} 公共无效OnEndRequest（对象源，EventArgs的EventArgs的）
{
如果（HttpContext.Current.Response.Status code == 401）
{
//如果状态401中的WWW的身份验证被添加到
//所以客户端的响应知道它需要发送凭据
HttpContext的背景下= HttpContext.Current;
context.Response.Status code = 401;
context.Response.AddHeader（WWW身份验证，基本领域）;
}
}
私人无效DenyAccess（HttpApplication的应用程序）
{
app.Response.Status code = 401;
app.Response.StatusDescription =拒绝访问;
//错误未通过身份验证
app.Response.Write（401拒绝访问）;
app.CompleteRequest（）;
}
} //末级
} //结束名称空间
I have a WCF HTTP REST Service and I tie into it with an HTTP client in a different programming language who writes its own custom HTTP. I would like to add WWW-Authenticate basic authentication support to my WCF service.
My methods look like this:
[WebInvoke(UriTemplate = "widgets", Method = "POST")]
public XElement CreateWidget(XElement e)
{
...
}
Is it possible for me to somehow filter incoming HTTP requests so I can check for a valid Basic auth string before it hits each of the REST methods like CreateWidget above?
Note: My auth info is stord in my database.
Basically I want to check for this in the request headers:
Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ== and then I can myself parse that string and validate the u/p in the database.
The web.config file is as follows:
<?xml version="1.0"?>
<configuration>
<connectionStrings>
<add name="DatabaseConnectionString" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=Database;Integrated Security=True" providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.0" />
<httpRuntime maxRequestLength="10485760" />
</system.web>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true">
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</modules>
</system.webServer>
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
<standardEndpoints>
<webHttpEndpoint>
<standardEndpoint name="" helpEnabled="true" automaticFormatSelectionEnabled="true" maxReceivedMessageSize="1048576" maxBufferSize="1048576" />
</webHttpEndpoint>
</standardEndpoints>
</system.serviceModel>
</configuration>
解决方案
I was also interested in custom authentication in a REST HTTP WCF service and finally got it to work.
That being said my code will give you a way to get it working, but I recommend reading this guide which explains everything in more depth: http://wcfsecurityguide.codeplex.com/
First, change the system.web portion of your Web.Config to look like this:
<system.web>
<compilation debug="true" targetFramework="4.0" />
<httpRuntime maxRequestLength="10485760" />
<authentication mode="None"></authentication>
<httpModules>
<add name="BasicAuthenticationModule" type="YourNamespace.UserNameAuthenticator" />
</httpModules>
</system.web>
Then add another file to your project: UserNameAuthenticator.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.Security;
using System.Security.Principal;
using System.ServiceModel.Activation;
namespace YourNamespace
{
public class UserNameAuthenticator : IHttpModule
{
public void Dispose()
{
}
public void Init(HttpApplication application)
{
application.AuthenticateRequest += new EventHandler(this.OnAuthenticateRequest);
application.AuthorizeRequest += new EventHandler(this.OnAuthorizationRequest);
application.EndRequest += new EventHandler(this.OnEndRequest);
}
public bool CustomAuth(string username, string password)
{
//TODO: Implement your custom auth logic here
return true;
}
public string[] GetCustomRoles(string username)
{
return new string[] { "read", "write" };
}
public void OnAuthorizationRequest(object source, EventArgs eventArgs)
{
HttpApplication app = (HttpApplication)source;
//If you want to handle authorization differently from authentication
}
public void OnAuthenticateRequest(object source, EventArgs eventArgs)
{
HttpApplication app = (HttpApplication)source;
//the Authorization header is checked if present
string authHeader = app.Request.Headers["Authorization"];
if (!string.IsNullOrEmpty(authHeader))
{
string authStr = app.Request.Headers["Authorization"];
if (authStr == null || authStr.Length == 0)
{
// No credentials; anonymous request
return;
}
authStr = authStr.Trim();
if (authStr.IndexOf("Basic", 0) != 0)
{
//header not correct we do not authenticate
return;
}
authStr = authStr.Trim();
string encodedCredentials = authStr.Substring(6);
byte[] decodedBytes = Convert.FromBase64String(encodedCredentials);
string s = new ASCIIEncoding().GetString(decodedBytes);
string[] userPass = s.Split(new char[] { ':' });
string username = userPass[0];
string password = userPass[1];
//the user is validated against the SqlMemberShipProvider
//If it is validated then the roles are retrieved from the
//role provider and a generic principal is created
//the generic principal is assigned to the user context
// of the application
if (CustomAuth(username, password))
{
string[] roles = GetCustomRoles(username);
app.Context.User = new GenericPrincipal(new
GenericIdentity(username, "Membership Provider"), roles);
}
else
{
DenyAccess(app);
return;
}
}
else
{
//the authorization header is not present
//the status of response is set to 401 and it ended
//the end request will check if it is 401 and add
//the authentication header so the client knows
//it needs to send credentials to authenticate
app.Response.StatusCode = 401;
app.Response.End();
}
}
public void OnEndRequest(object source, EventArgs eventArgs)
{
if (HttpContext.Current.Response.StatusCode == 401)
{
//if the status is 401 the WWW-Authenticated is added to
//the response so client knows it needs to send credentials
HttpContext context = HttpContext.Current;
context.Response.StatusCode = 401;
context.Response.AddHeader("WWW-Authenticate", "Basic Realm");
}
}
private void DenyAccess(HttpApplication app)
{
app.Response.StatusCode = 401;
app.Response.StatusDescription = "Access Denied";
// error not authenticated
app.Response.Write("401 Access Denied");
app.CompleteRequest();
}
} // End Class
} //End Namespace
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