Hi everybody,
For a very simple web-service (adding two doubles) I built a server and two
versions of a client (C and C++). The C++ version works fine, while the C
version fails with message
"SOAP 1.1 fault: SOAP-ENV:Client [no subcode]
"Validation constraint violation: tag name or namespace mismatch in element
'SOAP-ENV:Envelope'"
Detail: [no detail]"
Everything was done in MS Visual Studio 2008 under Windows XP.
Am I doing something wrong?
The C client is the following:
#include "soapH.h"
#include "scisoap.nsmap"
int main(int argc, char **argv)
{
struct soap soap;
char fault[300];
double c = 0;
soap_init(&soap);
/* Calculate the sum */
if(soap_call_ns1__add(&soap, NULL, NULL, 1.5, 4.5, &c) != SOAP_OK)
{
soap_sprint_fault(&soap, fault, 300);
return -1;
}
soap_end(&soap);
soap_done(&soap);
return 0;
}
The C++ client:
#include "soapscisoapProxy.h"
#include "scisoap.nsmap"
#include <iostream>
int main(int argc, char **argv)
{
scisoap proxy;
double r;
if(proxy.ns1__add(1.5, 4.5, r) != SOAP_OK)
{
soap_print_fault(proxy.soap, stderr);
}
else
{
std::cout << "r : " << r << std::endl;
}
return 0;
}
The server:
#include "soapH.h"
#include "scisoap.nsmap"
int main(int argc, char **argv)
{
SOAP_SOCKET m, s; /* master and slave sockets */
struct soap soap;
soap_init(&soap);
m = soap_bind(&soap, NULL, 5050, 100);
if (!soap_valid_socket(m))
{
soap_print_fault(&soap, stderr);
exit(-1);
}
fprintf(stderr, "Server socket bound: master socket = %d\n", m);
for ( ; ; )
{
s = soap_accept(&soap);
fprintf(stderr, "Accepted connection: slave socket = %d\n", s);
if (!soap_valid_socket(s))
{
soap_print_fault(&soap, stderr);
exit(-1);
}
soap_serve(&soap);
if (soap.error)
{
soap_print_fault(&soap, stderr);
}
soap_end(&soap);
}
return 0;
}
int ns1__add(struct soap *soap, double a, double b, double *result)
{
*result = a + b;
return SOAP_OK;
}
The request from the C client:
POST / HTTP/1.1
Host: <ip>:5050
User-Agent: gSOAP/2.7
Content-Type: text/xml; charset=utf-8
Content-Length: 0
Connection: close
SOAPAction: ""
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xmlns:ns1="urn:scisoap">
<SOAP-ENV:Header></SOAP-ENV:Header>
<SOAP-ENV:Body
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";>
<ns1:add>
<a>1.5</a>
<b>4.5</b>
</ns1:add>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
The response from the server:
HTTP/1.1 200 OK
Server: gSOAP/2.7
Content-Type: text/xml; charset=utf-8
Content-Length: 505
Connection: close
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xmlns:ns1="urn:scisoap">
<SOAP-ENV:Header></SOAP-ENV:Header>
<SOAP-ENV:Body
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";>
<ns1:addResponse>
<result>6</result>
</ns1:addResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
The request from C++ client:
POST / HTTP/1.1
Host: <ip>:5050
User-Agent: gSOAP/2.7
Content-Type: text/xml; charset=utf-8
Content-Length: 456
Connection: close
SOAPAction: ""
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xmlns:ns1="urn:scisoap">
<SOAP-ENV:Body
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";>
<ns1:add>
<a>1.5</a>
<b>4.5</b>
</ns1:add>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
The response from the server:
HTTP/1.1 200 OK
Server: gSOAP/2.7
Content-Type: text/xml; charset=utf-8
Content-Length: 470
Connection: close
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xmlns:ns1="urn:scisoap">
<SOAP-ENV:Body
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";>
<ns1:addResponse>
<result>6</result>
</ns1:addResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
The WSDL is the following:
<?xml version="1.0" encoding="UTF-8"?>
<definitions name="scisoap"
targetNamespace="urn:scisoap"
xmlns:tns="urn:scisoap"
xmlns:xsd="http://www.w3.org/2001/XMLSchema";
xmlns:SOAP="http://schemas.xmlsoap.org/wsdl/soap/";
xmlns="http://schemas.xmlsoap.org/wsdl/";>
<types>
<schema targetNamespace="scisoap.xsd"
xmlns:xsd="http://www.w3.org/2001/XMLSchema";
xmlns="http://www.w3.org/2001/XMLSchema";>
<import namespace="http://schemas.xmlsoap.org/soap/encoding/";
schemaLocation="http://schemas.xmlsoap.org/soap/encoding/"/>
</schema>
</types>
<message name="AddRequest">
<part name="a" type="xsd:double"/>
<part name="b" type="xsd:double"/>
</message>
<message name="AddResponse">
<part name="result" type="xsd:double"/>
</message>
<portType name="scisoapPortType">
<operation name="add">
<documentation>Performs addition</documentation>
<input message="tns:AddRequest"/>
<output message="tns:AddResponse"/>
</operation>
</portType>
<binding name="scisoap" type="tns:scisoapPortType">
<SOAP:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="add">
<SOAP:operation style="rpc" soapAction=""/>
<input>
<SOAP:body use="encoded" namespace="urn:scisoap"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
</input>
<output>
<SOAP:body use="encoded" namespace="urn:scisoap"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
</output>
</operation>
</binding>
<service name="SciSOAPService">
<documentation>Service executes commands with Scilab</documentation>
<port name="SciSOAPPort" binding="tns:scisoap">
<SOAP:address location="http://<ip>:5050"/>
</port>
</service>
</definitions>
Thanks in advance,
Artem
