SOAP 1.1 Request and Response of GetSpeech

SOAP Web Service Tutorials - Herong's Tutorial Examples - Version 5.02, by Dr. Herong Yang

SOAP Web Service Tutorials - Herong's Tutorial Examples

∟Perl Socket Test Program for HTTP and SOAP

∟SOAP 1.1 Request and Response of GetSpeech

This section provides a tutorial example on how to use SocketRequestResponse.pl to send a SOAP 1.1 request for the GetSpeech Web service provided by www.xmlme.com. The response of GetSpeech received looks very nice.

In the previous tutorial, I discovered a code bug in my socket test program, SocketRequestResponse.pl. The bug is that the request file is opened in non-binary mode and the read() functions converts \r\n to \n resulting less bytes used in the SOAP request message.

I modified SocketRequestResponse.pl to open the request file in binary mode:

#- SocketRequestResponseBinary.pl
#- Copyright (c) 2009 by Dr. Herong Yang, herongyang.com
#- All rights reserved
#
   use Socket;
   ($host, $port, $in, $out) =  @ARGV;

#- Reading the request
   open(IN, "< $in");
   binmode(IN);
   read(IN, $req, (-s $in));
   close(IN);

#- Connecting
   socket(SOCK,PF_INET,SOCK_STREAM,getprotobyname('tcp'));
   connect(SOCK, sockaddr_in($port, inet_aton($host)));
   select(SOCK); $| = 1; select(STDOUT);

#- Sending the request
   print SOCK $req;

#- Receiving the response
   open(OUT, "> $out");
   while ($line=<SOCK>) {
      print OUT $line;
   }
   close(OUT);

#- Closing connection
   close(SOCK);
   exit;

Here is the test result after fixing the bug:

\herong>SocketRequestResponseBinary.pl www.xmlme.com 80 
   soap_1_1_GetSpeech.req soap_1_1.res
   
\herong>type soap_1_1.res
HTTP/1.1 200 OK
Connection: close
Date: ... 2009
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private, max-age=0
Content-Type: text/xml; charset=utf-8
Content-Length: 1942

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <GetSpeechResponse xmlns="http://xmlme.com/WebServices">
      <GetSpeechResult>
        &lt;SPEECH&gt;&lt;PLAY&gt;HAMLET&lt;/PLAY&gt;
        &lt;SPEAKER&gt;HAMLET&lt;/SPEAKER&gt;To be, or not to be: 
        that is the question: Whether 'tis nobler in the mind to
        ...&lt;/SPEECH&gt;
      </GetSpeechResult>
    </GetSpeechResponse>
  </soap:Body>
</soap:Envelope>

Cool. My first SOAP 1.1 test with SocketRequestResponseBinary.pl worked nicely. Some notes on the SOAP response:

www.xmlme.com is running Microsoft IIS 6.0 as the Web server.
The GetSpeech Web service returns result in the GetSpeechResult element of the SOAP response XML message.
The result itself is an XML message with < and > replaced as escape sequences.
The SOAP response message received as a single line without any line breaks. I reformatted it before inludeding it here.

Last update: 2009.

Table of Contents

About This Book

Introduction to Web Service

Introduction to SOAP (Simple Object Access Protocol)

SOAP Message Structure

SOAP Message Transmission and Processing

SOAP Data Model

SOAP Encoding

SOAP RPC Presentation

SOAP Properties Model

SOAP Message Exchange Patterns