Enable programmable WCF proxy settings.

[daisukenishino2]

Requirement

I tested the proxy settings of the communication control function due to the another matter.
As a result of the following settings, proxy setting in XML was possible except for WCF.
This result was verified using fiddler http debug proxy (127.0.0.1:8888).

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE TMD[
  <!ELEMENT TMD (Prop*, Url*, Transmission*)>

  <!ELEMENT Url EMPTY>
  <!ELEMENT Prop EMPTY>
  <!ELEMENT Transmission EMPTY>

  <!ATTLIST Url id ID #REQUIRED value CDATA #REQUIRED>
  <!ATTLIST Prop id ID #REQUIRED value CDATA #REQUIRED>
  <!ATTLIST Transmission id ID #REQUIRED protocol (1 | 2) #REQUIRED 
    url CDATA #IMPLIED url_ref IDREF #IMPLIED timeout CDATA #IMPLIED prop_ref IDREF #IMPLIED>
]>
<!-- idの先頭には、数字を使用できない。 -->
<!-- protocol：1=InProcess、2=WebService -->
<TMD>
  <!-- マスタ データ -->

  <!-- 接続URL（asmx単位に定義する） -->
  <Url id="url_a" value="http://xxx.xxx.xxx.xxx/ASPNETWebService/ServiceForFx.asmx"/>
  <Url id="url_b" value="http://xxx.xxx.xxx.xxx/ASPNETWebService/WCFHTTPSvcForFx.svc"/>
  <Url id="url_c" value="net.tcp://localhost:7777/WCFService/WCFTCPSvcForFx/"/>
  <Url id="url_d" value="http://xxx.xxx.xxx.xxx/ASPNETWebService/DotNETOnlineWebAPI"/>

  <!-- 接続オプション（必要に応じて） -->
  <Prop id="prop_a" value="ProxyUrl=http://127.0.0.1:8888;"/>

  <!-- 接続先 データ -->

  <!-- インプロセス -->
  <Transmission id="testInProcess" protocol="1"/>

  <!-- サービス -->

  <!-- サービス（マスタ データを活用）-->
  <Transmission id="testWebService" protocol="2" url_ref="url_a" timeout="60" prop_ref="prop_a" />
  <Transmission id="testWebService2" protocol="3" url_ref="url_b" timeout="60" prop_ref="prop_a" />
  <Transmission id="testWebService3" protocol="4" url_ref="url_c" timeout="60" prop_ref="prop_a" />
  <Transmission id="testWebService4" protocol="5" url_ref="url_d" timeout="60" prop_ref="prop_a" />
</TMD>

In the current specification, this setting is done in the binding section for WCF.
However, I found the following information to which XML settings can be applied.

• WCFでのProxyの設定 | Windows - オレのメモ(仮)
  http://community.giga-works.com/windows/wcfproxy.html

  BasicHttpBinding binding = (BasicHttpBinding)service.Endpoint.Binding;
    binding.BypassProxyOnLocal = true;
    binding.UseDefaultWebProxy = false;
    binding.ProxyAddress = new Uri(proxyServer);

• c# - How to set proxy credentials to specific wcf client? - Stack Overflow
  https://stackoverflow.com/questions/17968307/how-to-set-proxy-credentials-to-specific-wcf-client

 void SetProxySettings<TChannel>(ClientBase<TChannel> client, 
     bool useProxy, string address, int port, string login, string password) 
     where TChannel : class
 {
     if (!useProxy) return;
     var b = client.Endpoint.Binding as BasicHttpBinding;
     if (b == null)
     {
         System.Diagnostics.Debug.WriteLine("Binding of this endpoint is not BasicHttpBinding");
         return;
     }
     b.ProxyAddress = new Uri(string.Format("http://{0}:{1}", address, port));
     b.UseDefaultWebProxy = false; // !!!
     b.Security.Mode = BasicHttpSecurityMode.Transport;
     b.Security.Transport.ClientCredentialType = HttpClientCredentialType.None; // !!!
     b.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.Basic; // !!!
     if (client.ClientCredentials == null) return;
     client.ClientCredentials.UserName.UserName = login;
     client.ClientCredentials.UserName.Password = password;
 }

• <basicHttpBinding> | Microsoft Docs
  https://docs.microsoft.com/ja-jp/dotnet/framework/configure-apps/file-schema/wcf/basichttpbinding

<basicHttpBinding>  
   <binding   
       allowCookies="Boolean"  
       bypassProxyOnLocal="Boolean"  
       closeTimeout="TimeSpan"   
       envelopeVersion="None/Soap11/Soap12"  
       hostNameComparisonMode="StrongWildCard/Exact/WeakWildcard"  
       maxBufferPoolSize="Integer"  
       maxBufferSize="Integer"  
       maxReceivedMessageSize="Integer"  
       messageEncoding="Text/Mtom"  
              name="string"   
       openTimeout="TimeSpan"   
       proxyAddress="URI"  
        receiveTimeout="TimeSpan"  
       sendTimeout="TimeSpan"  
              textEncoding="UnicodeFffeTextEncoding/Utf16TextEncoding/Utf8TextEncoding"  
              transferMode="Buffered/Streamed/StreamedRequest/StreamedResponse"  
       useDefaultWebProxy="Boolean"  
       <security mode="None/Transport/Message/TransportWithMessageCredential/TransportCredentialOnly">  
           <transport clientCredentialType="None/Basic/Digest/Ntlm/Windows/Certificate"  
                  proxyCredentialType="None/Basic/Digest/Ntlm/Windows"  
                                    realm="string" />