(尝试)从WSE 3.0迁移到WCF以获取客户端代码

时间:2012-05-14 19:08:10

标签: c# wcf web-services wse

为此我一直都在网上。我刚刚做了一段时间的魔鬼,而我试图消费的网络服务供应商拒绝正式支持WCF作为一种消费方式。

我不是网络服务专家,所以我会尽力记录并解释这篇文章,但是如果你需要的话,请务必提供更多信息,希望我能提供任何服务。是必要的。

服务

在我的公司,我们使用公开服务的供应商应用程序。该应用程序是用java编写的,看起来wsdl是用Apache Axis 1.2创建的。

代码

我的遗留代码使用WSE 3.0。特别是,它使用最后自动添加“WSE”的代理类。这允许我使用更简单的身份验证方案(我可以使它工作的唯一方法)。我不需要使用证书。我使用SecurityPolicyAssertion的派生,并将其包装在Policy对象中,该对象将传递给客户端类的SetPolicy方法。以下是创建客户端工作实例所需的全部内容:

MyWebServiceWse api = new MyWebServiceWse();
api.Url = myUrl;
api.SetPolicy(new Policy(new MyDerivedSecurityAssertion(user, pass)));

我的默认,WCF的开箱即用代码(使用服务引用生成)不接受凭据,因此我知道现在有问题。我已经在线阅读了有关在security中使用不同app.config或绑定设置的各种内容,但没有任何内容完全奏效。经过大量修补后,我最常见的错误是WSDoAllReceiver: Request does not contain required Security header

这是app.config。也许我们可以先告诉我这里应该改变什么来促进传递证书 - 再次,我在网上看到了不同的意见。

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <bindings>
            <basicHttpBinding>
                <binding name="MySoapBinding" closeTimeout="00:01:00"
                    openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
                    allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
                    maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
                    messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
                    useDefaultWebProxy="true">
                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                    <security mode="None">
                        <transport clientCredentialType="None" proxyCredentialType="None"
                            realm="" />
                        <message clientCredentialType="UserName" algorithmSuite="Default" />
                    </security>
                </binding>
            </basicHttpBinding>
        </bindings>
        <client>
            <endpoint address="http://xyz:12345/services/MyService"
                binding="basicHttpBinding" bindingConfiguration="MySoapBinding"
                contract="MyNS.MyService" name="MyService" />
        </client>
    </system.serviceModel>
</configuration>

我更改了一些属性,以掩盖我们正在使用的特定服务(公司政策及所有这些)。

以下是目前为止的示例C#代码(在控制台应用程序中测试):

MyClient client = new MyClient();
client.listMethod();

更新

阅读此SO帖子:wcf security . . .

我已相应更新了我的app.config,现在正在代码中传递用户名和密码。我仍然收到同样的错误:

WSDoAllReceiver: Request does not contain required Security header

20120517更新

成功请求(来自WSE3):

  <soap:Header>
    <wsa:Action>
    </wsa:Action>
    <wsa:MessageID>urn:uuid:cb739422-c077-4eec-8cb2-686837b76878</wsa:MessageID>
    <wsa:ReplyTo>
      <wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address>
    </wsa:ReplyTo>
    <wsa:To>http://removed-for-security</wsa:To>
    <wsse:Security soap:mustUnderstand="1">
      <wsu:Timestamp wsu:Id="Timestamp-e13feaf9-33d9-47bf-ab5b-60b4611eb81a">
        <wsu:Created>2012-05-17T11:25:41Z</wsu:Created>
        <wsu:Expires>2012-05-17T11:30:41Z</wsu:Expires>
      </wsu:Timestamp>
      <wsse:UsernameToken xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="SecurityToken-00c26e1a-3b3b-400f-a99a-3aa54cf8c8ff">
        <wsse:Username>change-to-protect-the-innocent</wsse:Username>
        <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">nice-try</wsse:Password>
        <wsse:Nonce>KJMvUuWF2eO2uIJCuxJC4A==</wsse:Nonce>
        <wsu:Created>2012-05-17T11:25:41Z</wsu:Created>
      </wsse:UsernameToken>
    </wsse:Security>
  </soap:Header>
  <soap:Body>
    <listChannels xmlns="http://removed-for-security">
      <rowfrom>0</rowfrom>
      <rowto>10</rowto>
    </listChannels>
  </soap:Body>
</soap:Envelope>

获取WCF跟踪 - 将很快添加。

20120517更新2

这是来自WCF的信封:

  <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Header>
      <Action s:mustUnderstand="1" xmlns="http://schemas.microsoft.com/ws/2005/05/addressing/none"></Action>
    </s:Header>
    <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
      <listChannels xmlns="http://removed-for-security">
        <rowfrom>1</rowfrom>
        <rowto>2147483647</rowto>
      </listChannels>
    </s:Body>
  </s:Envelope>

20120518更新 我已经尝试在Mike Miller在评论中链接的帖子中实现解决方案。现在我收到以下错误(没有消息最终被发送,因为有些东西正在计划中):

The provided URI scheme 'http' is invalid; expected 'https'.

如果有人想问,是的,我需要通过http发送,是的,我知道凭据是以未加密的字符串形式发送的: - )

1 个答案:

答案 0 :(得分:11)

您需要的是通过http传输发送用户名令牌,这在wcf ootb中不受支持。此外,您的令牌使用nonce / created,这也不是ootb。你有两个选择:

  1. oss project将nonce / created添加到用户名令牌。此oss project添加了通过http发送用户名的功能。你需要将两个项目结合起来。

  2. ws-security通常被认为是复杂的,但您以最简单的形式(用户名)使用它。最简单的方法是将所有wcf安全设置一起解除,并在message inspector中自己创建整个安全标头!正如您所看到的,大多数标头只是静态xml节点,并且大多数值非常清楚(您知道用户名)。唯一棘手的两个是nonce和时间戳,你可以在这个oss project看看如何做(每行一行)。这个选项的变体可能更容易 - 毕竟使用CUB并实现推送timestmpa / nonce的custom encoder。我会选择后者但是因为我开发了CUB而我有偏见......

  3. 您还可以在自定义编码“messageVersion”属性上配置ws-addressing标头。由于您省略了带有wsa前缀定义的信封标题,我无法确切地说出确切的值。

    如果您私下想要帮助(因为您似乎有安全限制),请通过my blog向我发送电子邮件。

    编辑:我已经为你实现了它。请按照以下步骤操作:

    1. 下载cub并熟悉它(不是内部,根据博客文章如何使用它)

    2. 将System.Runtime.Serialization.dll的引用添加到项目ClearUsernameBinding

    3. 向该项目添加一个新文件:UsernameExEncoder.cs。粘贴此内容:

      using System;
      using System.Collections.Generic;
      using System.Linq;
      using System.Text;
      using System.ServiceModel.Channels;
      using System.IO;
      using System.Xml;
      using System.Security.Cryptography;
      
      namespace Webservices20.BindingExtensions
         {
          class UsernameExEncoderBindingElement : MessageEncodingBindingElement
          {
          MessageEncodingBindingElement inner;        
      
          public UsernameExEncoderBindingElement(MessageEncodingBindingElement inner)
          {
              this.inner = inner;            
          }
      
          public override IChannelFactory<TChannel> BuildChannelFactory<TChannel>(BindingContext context)
          {
              context.BindingParameters.Add(this);
              var res = base.BuildChannelFactory<TChannel>(context);
              return res;
          }
      
          public override bool CanBuildChannelFactory<TChannel>(BindingContext context)
          {
              var res = base.CanBuildChannelFactory<TChannel>(context);
              return res;
          }
      
          public override MessageEncoderFactory CreateMessageEncoderFactory()
          {
              return new UsernameExEncoderFactory(this.inner.CreateMessageEncoderFactory());
          }      
      
          public override MessageVersion MessageVersion
          {
              get
              {
                  return this.inner.MessageVersion;
              }
              set
              {
                  this.inner.MessageVersion = value;
              }
          }
      
          public override BindingElement Clone()
          {
              var c = (MessageEncodingBindingElement)this.inner.Clone();
              var res = new UsernameExEncoderBindingElement(c);
              return res;
          }
      
          public override T GetProperty<T>(BindingContext context)
          {
              var res = this.inner.GetProperty<T>(context);
              return res;
          }
      }
      
      class UsernameExEncoderFactory : MessageEncoderFactory
      {
          MessageEncoderFactory inner;        
      
          public UsernameExEncoderFactory(MessageEncoderFactory inner)
          {
              this.inner = inner;            
          }
      
          public override MessageEncoder Encoder
          {
              get { return new UsernameExEncoder(inner.Encoder); }
          }
      
          public override MessageVersion MessageVersion
          {
              get { return this.inner.MessageVersion; }
          }
      
      }
      
      class UsernameExEncoder : MessageEncoder
      {
          MessageEncoder inner;
      
          public override T GetProperty<T>()
          {
              return inner.GetProperty<T>();
          }
      
          public UsernameExEncoder(MessageEncoder inner)
          {
              this.inner = inner;
          }
      
          public override string ContentType
          {
              get { return this.inner.ContentType; }
          }
      
          public override string MediaType
          {
              get { return this.inner.MediaType; }
          }
      
          public override MessageVersion MessageVersion
          {
              get { return this.inner.MessageVersion; }
          }
      
          public override bool IsContentTypeSupported(string contentType)
          {
              return this.inner.IsContentTypeSupported(contentType);
          } 
      
          public override Message ReadMessage(ArraySegment<byte> buffer, BufferManager bufferManager, string contentType)
          {
              return this.inner.ReadMessage(buffer, bufferManager, contentType);
          }
      
          public override Message ReadMessage(System.IO.Stream stream, int maxSizeOfHeaders, string contentType)
          {
              return this.inner.ReadMessage(stream, maxSizeOfHeaders, contentType);
          }
      
          public override ArraySegment<byte> WriteMessage(Message message, int maxMessageSize, BufferManager bufferManager, int messageOffset)
          {   
              //load the message to dom
              var mem = new MemoryStream();
              var x = XmlWriter.Create(mem);
              message.WriteMessage(x);
              x.Flush();
              mem.Flush();
              mem.Position = 0;
              XmlDocument doc = new XmlDocument();
              doc.Load(mem);
      
              //add the missing elements
              var token = doc.SelectSingleNode("//*[local-name(.)='UsernameToken']");
              var created = doc.CreateElement("Created", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
              var nonce = doc.CreateElement("Nonce", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
              token.AppendChild(created);
              token.AppendChild(nonce);
      
              //set nonce value
              byte[] nonce_bytes = new byte[16];
              RandomNumberGenerator rndGenerator = new RNGCryptoServiceProvider();
              rndGenerator.GetBytes(nonce_bytes);
              nonce.InnerText = Convert.ToBase64String(nonce_bytes);
      
              //set create value
              created.InnerText = XmlConvert.ToString(DateTime.Now.ToUniversalTime(), "yyyy-MM-ddTHH:mm:ssZ");
      
              //create a new message
              var r = XmlReader.Create(new StringReader(doc.OuterXml));
              var newMsg = Message.CreateMessage(message.Version, message.Headers.Action, r);
      
              return this.inner.WriteMessage(newMsg, maxMessageSize, bufferManager, messageOffset);
          }
      
      
      
      
          public override void WriteMessage(Message message, System.IO.Stream stream)
          {
              this.inner.WriteMessage(message, stream);
          }
      }
      }
      
    4. 在ClearUsernameBinding.cs文件中替换为:

      res.Add(new TextMessageEncodingBindingElement() { MessageVersion = this.messageVersion});

      用这个:

      var textEncoder = new TextMessageEncodingBindingElement() { MessageVersion = this.messageVersion }; res.Add(new UsernameExEncoderBindingElement(textEncoder));

    5. 在app.config中的项目TestClient中,绑定元素上有一个messageVersion属性。您尚未发布信封的根目录,因此我无法确定,但您可能需要将其设置为Soap11WSAddressingAugust2004或Soap11WSAddressing10(或其中一个使用Soap12)。

    6. 祝你好运!

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