Problem:
I inherited a software where a C# windows service is called with PHP. It does not work properly so I am just getting started on WCF and SOAP.
My major problem is that I am not able to call the windows service using PHP and Soap. When I try it, PHP crashes.
I completed the microsoft tutorial: https://learn.microsoft.com/en-us/dotnet/framework/wcf/getting-started-tutorial When I use the C# client as described in the tutorial, everything works like charme. I added an Installer to make the whole program available as a Windows service. Long story short, in C# everything works as it is supposed to.
I assume that it just not configured correctly for the SOAP call. I already read through: http://www.rizalalmashoor.com/blog/calling-a-wcf-service-from-php/ but I still can't get it running.
Questions:
The source code is further below. I wanted to put my questions first:
1) I expose the service at the base address, right??
http://localhost:1234/GettingStartedLib/CalculatorService
2) The http end point is left empty. Is my soapURL in the PHP code correct?
3) Is there a way to debug the soap call? Even when I debug it in ZendStudio as a CLI application, I don't get any further information.
I am happy to provide further information if needed or something is not explained adequately.
- Before someone answers: Soap is enabled in the php.ini. Already checked on that.
The source code:
PHP:
$soapURL = 'http://localhost:1234/GettingStartedLib/CalculatorService?wsdl';
$soapAttributes = array('soap_version' => SOAP_1_1);
$result = new SoapClient($soapURL, $soapAttributes);
The configuration of the WCF library:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true"/>
</appSettings>
<system.web>
<compilation debug="true"/>
</system.web>
<!-- When deploying the service library project, the content of the config file must be added to the host's
app.config file. System.Configuration does not support config files for libraries. -->
<system.serviceModel>
<services>
<service name="GettingStartedLib.CalculatorService">
<host>
<baseAddresses>
<add baseAddress="http://localhost:1234/GettingStartedLib/CalculatorService"/>
</baseAddresses>
</host>
<!-- Service Endpoints -->
<!-- Unless fully qualified, address is relative to base address supplied above -->
<endpoint address="" binding="basicHttpBinding" contract="GettingStartedLib.ICalculator">
<!--
Upon deployment, the following identity element should be removed or replaced to reflect the
identity under which the deployed service runs. If removed, WCF will infer an appropriate identity
automatically.
-->
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<!-- Metadata Endpoints -->
<!-- The Metadata Exchange endpoint is used by the service to describe itself to clients. -->
<!-- This endpoint does not use a secure binding and should be secured or removed before deployment -->
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information,
set the values below to false before deployment -->
<serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
<!-- To receive exception details in faults for debugging purposes,
set the value below to true. Set to false before deployment
to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="False"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/>
</startup>
</configuration>
The C# interface
namespace GettingStartedLib
{
[ServiceContract(Namespace = "http://Microsoft.ServiceModel.Samples")]
public interface ICalculator {
[OperationContract]
double Add(double n1, double n2);
[OperationContract]
double Subtract(double n1, double n2);
[OperationContract]
double Multiply(double n1, double n2);
[OperationContract]
double Divide(double n1, double n2);
[OperationContract]
string SoapCall();
}
}
The C# service itself:
namespace GettingStartedLib
{
public class CalculatorService : ICalculator
{
public double Add(double n1, double n2) {
double result = n1 + n2;
Console.WriteLine("Received Add({0},{1})", n1, n2);
// Code added to write output to the console window.
Console.WriteLine("Return: {0}", result);
return result;
}
public double Subtract(double n1, double n2) {
double result = n1 - n2;
Console.WriteLine("Received Subtract({0},{1})", n1, n2);
Console.WriteLine("Return: {0}", result);
return result;
}
public double Multiply(double n1, double n2) {
double result = n1 * n2;
Console.WriteLine("Received Multiply({0},{1})", n1, n2);
Console.WriteLine("Return: {0}", result);
return result;
}
public double Divide(double n1, double n2) {
double result = n1 / n2;
Console.WriteLine("Received Divide({0},{1})", n1, n2);
Console.WriteLine("Return: {0}", result);
return result;
}
public string SoapCall() => "SoapCall";
}
}
