Silverlight自动选择http和https之间的安全传输模式

Question

我们的Silverlight应用程序可以在http和https(SSL,使用传输安全性)模式下运行.在我们的ServiceReferences.ClientConfig文件中,我们只是这样配置我们的服务端点:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

  <system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="DefaultEndpoint"
                 maxBufferSize="2147483647"
                 maxReceivedMessageSize="2147483647">
          <security mode="None" />
          <!-- Enable for SSL: mode="Transport" -->
        </binding>
      </basicHttpBinding>
    </bindings>
    <client>
      <endpoint address="/services/DefaultService.svc"
                binding="basicHttpBinding"
                bindingConfiguration="DefaultEndpoint"
                contract="OurNamespace.IOurContractAsync"
                name="DefaultEndpoint" />
    </client>
  </system.serviceModel>
</configuration>

可以在两种模式下访问配置的端点.它只取决于加载XAP文件的上下文:From http://example.com/slpage.html或https://example.com/slpage.html.不幸的是,我们必须在"无"和"传输"之间手动切换安全模式设置.其他一切都已按预期工作.当安全模式为"无"并且我们通过https访问时,我们得到一个例外"提供了..https但是预期了http ......",反之亦然.是否有机会让Silverlight自动决定应该使用哪种安全模式？这个问题最简单的解决方案是什么？

提前致谢

托马斯

Answer 1

我们最终得到了以下解决方案(不完全是Valentin所建议的,但+1求救!):

在ServiceReferences.ClientConfig包含这样既结合和端点配置:

<configuration>
  <system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="DefaultBinding"
                 maxBufferSize="2147483647"
                 maxReceivedMessageSize="2147483647">
          <security mode="None" />
        </binding>
      </basicHttpBinding>
      <customBinding>
        <binding name="SecureBinding">
          <textMessageEncoding messageVersion="Soap12WSAddressing10" />
          <httpsTransport maxBufferSize="2147483647"
                          maxReceivedMessageSize="2147483647" />
        </binding>
      </customBinding>
    </bindings>
    <client>
      <endpoint address="/services/DefaultService.svc"
                binding="basicHttpBinding"
                bindingConfiguration="DefaultBinding"
                contract="OurNamespace.IOurContractAsync"
                name="DefaultEndpoint" />
      <endpoint address="/services/DefaultService.svc"
                binding="customBinding"
                bindingConfiguration="SecureBinding"
                contract="OurNamespace.IOurContractAsync"
                name="SecureEndpoint" />
    </client>
  </system.serviceModel>
</configuration>

在初始化时,我们读取App.Current.Host.Source.Scheme属性.服务客户端是由生成的ChannelFactory,代码类似于此代码段:

protected string EndpointName {
  get {
    return (App.Current.Host.Source.Scheme == "https") ?
      "SecureEndpoint" : "DefaultEndpoint";
  }
}

protected IOurContractAsync CreateInterface() {
  var channelFactory = ChannelFactory<IOurContractAsync>(EndpointName);
  return channelFactory.CreateChannel();
}

希望这可以帮助!

最好的问候,托马斯