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comp.lang.ruby

How can I populate header values in SOAP document?

Brian Hartin

10/26/2006 7:53:00 PM

Hi all,

Got a question about the Ruby SOAP library. I've generated a proxy
using the SOAP::WSDLDriverFactory as follows:

ws =
SOAP::WSDLDriverFactory.new('http://foo.com/foo...).create_rpc_driver

I can see that this generates methods for each defined operation, and I
use them thusly:

ws.WSGetResults(:maxRecords => 1, ...)

The method and parameters are translated to the appropriate XML in the
SOAP message body. However, some operations require a 'User' and
'Password' to be in the message _header_. I've looked through the
documentation and mailing lists with no luck. How can one achieve this?

My code is listed below.

Thanks!

Brian Hartin

---- soaptest.rb ----
require 'soap/wsdlDriver'
require 'date'

ws =
SOAP::WSDLDriverFactory.new('http://foo.com/foo...).create_rpc_driver
ws.generate_explicit_type = true
r = ws.WSHeartbeat({}) # Works because it doesn't require authentication
r = g.WSGetXmlResults(:recordId => 123, :recordLimit => 200) # Doesn't
work

---- Example SOAP request, according to vendor ----
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-inst...
xmlns:xsd="http://www.w3.org/2001/XMLSc...
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/...
<soap:Header>
<!-- I don't know how to populate the header -->
<WSAuthHeader xmlns="http://foo.com/WSFooSvc...
<User>string</User>
<Password>string</Password>
</WSAuthHeader>
</soap:Header>
<soap:Body>
<WSGetXmlResults xmlns="http://foo.com/WSFooSvc...
<recordId>int</recordId>
<recordLimit>int</recordLimit>
</WSGetXmlResults>
</soap:Body>
</soap:Envelope>
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2 Answers

Jeremy Hinegardner

10/27/2006 3:04:00 AM

0

I'm not sure if it can be done dynamically, but you can create a
ClientSimpleHeader which hooks into the inbound and outbound stream.
I've only hooked into the outbound and it looked something like the code
below.

The code is untested and extrapolated from my case to yours, so take the
general idea and see where it gets you.

And if you didn't know, driver.wiredump_dev is your friend.

Good Luck.

enjoy,

-jeremy

----- customer_header.rb -----
require 'soap/header/simplehandler'
require 'stringio'

class CustomSimpleHeader < SOAP::Header::SimpleHandler
# encapsulate outbound only headers, this is set once and never
# touched again.
#
def initialize(itemname,namespace,childdata)
super(XSD::QName.new(namespace,name))

case childdate
# other classes if you want
# Or do something with XML::Mappging
when Hash
xml = StringIO.new
childdata.each_pair do |key,value|
xml.puts("<#{key}>#{value}</#{key}>")
end
@item = xml.string
else
@item = childdata.to_s
end
end

def on_simple_outbound
@item if @item
end

def on_simple_inbound
end
end

---- possible soaptest.rb -----
require 'customer_header'

# assuming this works with a dynamic proxy

ws = SOAP::WSDLDriverFactor.new("http://foo.com/foo....).create_rpc_driver
ws.wiredump_dev = STDERR
ws.generate_explicit_type = true
user = "my user"
password = "my password"
ws.headerhandler << CustomSimpleHeader.new("WSAuthHeader",
{ "User" => user,
"Password" => password })

-----

--
========================================================================
Jeremy Hinegardner jeremy@hinegardner.org


On Fri, Oct 27, 2006 at 04:52:54AM +0900, Hartin, Brian wrote:
> Hi all,
>
> Got a question about the Ruby SOAP library. I've generated a proxy
> using the SOAP::WSDLDriverFactory as follows:
>
> ws =
> SOAP::WSDLDriverFactory.new('http://foo.com/foo...).create_rpc_driver
>
> I can see that this generates methods for each defined operation, and I
> use them thusly:
>
> ws.WSGetResults(:maxRecords => 1, ...)
>
> The method and parameters are translated to the appropriate XML in the
> SOAP message body. However, some operations require a 'User' and
> 'Password' to be in the message _header_. I've looked through the
> documentation and mailing lists with no luck. How can one achieve this?
>
> My code is listed below.
>
> Thanks!
>
> Brian Hartin
>
> ---- soaptest.rb ----
> require 'soap/wsdlDriver'
> require 'date'
>
> ws =
> SOAP::WSDLDriverFactory.new('http://foo.com/foo...).create_rpc_driver
> ws.generate_explicit_type = true
> r = ws.WSHeartbeat({}) # Works because it doesn't require authentication
> r = g.WSGetXmlResults(:recordId => 123, :recordLimit => 200) # Doesn't
> work
>
> ---- Example SOAP request, according to vendor ----
> <?xml version="1.0" encoding="utf-8"?>
> <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-inst...
> xmlns:xsd="http://www.w3.org/2001/XMLSc...
> xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/...
> <soap:Header>
> <!-- I don't know how to populate the header -->
> <WSAuthHeader xmlns="http://foo.com/WSFooSvc...
> <User>string</User>
> <Password>string</Password>
> </WSAuthHeader>
> </soap:Header>
> <soap:Body>
> <WSGetXmlResults xmlns="http://foo.com/WSFooSvc...
> <recordId>int</recordId>
> <recordLimit>int</recordLimit>
> </WSGetXmlResults>
> </soap:Body>
> </soap:Envelope>
> ****************************************************************************
> This email may contain confidential material.
> If you were not an intended recipient,
> Please notify the sender and delete all copies.
> We may monitor email to and from our network.
> ****************************************************************************
>

Ara.T.Howard

10/27/2006 3:56:00 AM

0