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Name

dsig_template_ext — Generates a Digital signature template based on a XML document.

Synopsis

varchar dsig_template_ext ( in xdoc any ,
in tmpl varchar ,
in wss_ver any ,
in ns-n varchar ,
in elm-n varchar ,
in ... varchar );

Description

The function is used to generate dynamically a digital signature template containing references to be signed.

Parameters

xdoc

input XML document

tmpl

a string containing base XML template

wss_ver

vector containing WS-Security and WS-Utility version URIs

ns-n

namespace to match

elm-n

element name to match

Return Types

On success the function will return a string containing a XML template suitable to pass to the xenc_encrypt . The elements matching listed in elm-n from namespace URIs in ns-n and having Id attribute will be included in the XML signature reference list.

Examples

Example24.453.Making a XML signature template 

create procedure XENC_TEMPLATE (in body varchar, in key_name varchar)
{
  declare tmpl, algo varchar;
  declare ns any;

  -- OASIS WS-Security extensions
  ns := vector (
        'wsse', 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd',
        'wsu', 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd'
        );

  algo := xenc_get_key_algo (key_name);
  if (algo is null)
    return NULL;

  -- base XML template
  tmpl := sprintf ('<?xml version="1.0" encoding="UTF-8"?>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#" >
  <SignedInfo>
    <CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
    <SignatureMethod Algorithm="%s" />
  </SignedInfo>
  <SignatureValue></SignatureValue>
  <KeyInfo>
    <KeyName>%s</KeyName>
  </KeyInfo>
</Signature>', algo, key_name);

  return dsig_template_ext (xtree_doc (body), tmpl, ns,
      'http://schemas.xmlsoap.org/soap/envelope/', 'Body',
       -- WS-Addressing
      'http://schemas.xmlsoap.org/ws/2004/03/addressing', 'Action',
      'http://schemas.xmlsoap.org/ws/2004/03/addressing', 'From',
      'http://schemas.xmlsoap.org/ws/2004/03/addressing', 'To',
      'http://schemas.xmlsoap.org/ws/2004/03/addressing', 'MessageID',
      'http://schemas.xmlsoap.org/ws/2004/03/addressing', 'ReplyTo',
      'http://schemas.xmlsoap.org/ws/2004/03/addressing', 'FaultTo',
      'http://schemas.xmlsoap.org/ws/2004/03/addressing', 'RelatesTo'
      );

}
;

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