Using SOAP::Lite client to handle server that sends responses missing namespace specification

Question

I'm writing a SOAP::Lite client to work with a SOAP server that sometimes sends responses that are missing a namespace specification. This is the first time I've ever done anything with SOAP, so I'm not very knowledgeable at all. Here is an example response:

HTTP/1.1 200 OK
Server: "OS/version" UPnP/1.0 "product/version"
Content-Length: 83219
Content-Type: text/xml; charset="UTF-8"
Client-Date: Tue, 01 Aug 2017 06:30:44 GMT
Client-Peer: 192.168.1.123:5000
Client-Response-Num: 1

<?xml version="1.0" encoding="UTF-6"?>
<soap-env:Envelope
        xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/"
        soap-env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
        >
<soap-env:Body>
    <m:GetDataResponse
        xmlns:m="urn:BLACKBOX:service:DataSource:1">
        <DataBlob xsi:type="xsd:base64Binary">Ikf7SPJ...SsA==</DataBlob>
    </m:GetDataResponse>
    <ResponseCode>0</ResponseCode>
</soap-env:Body>
</soap-env:Envelope>

Notice the use of the 'xsi' namespace without specification. There should probably be one for 'xsd' too? SOAP::Lite is giving me this error message:

failed:  Unresolved prefix 'xsi' for attribute 'xsi:type'

How would I work around this with SOAP::Lite in the client, given that I have no control of the server? Is there some way for me to tell SOAP::Lite to assume namespaces I provide?

Answer 1

The server is broken and you should raise an error. Meanwhile, you could get your code working by editing the incoming data, adding

these definitions to the Envelope element

xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

Answer 2

Just add to SOAP::Lite object:

$soap->serializer->register_ns('http://www.w3.org/2001/XMLSchema' => 'xmlns:xsd');

$soap->serializer->register_ns('http://www.w3.org/2001/XMLSchema-instance' => 'xmlns:xsi');