2 * Copyright 2001-2009 Internet2
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * ContentReference.cpp
20 * SAML-specific signature reference profile
24 #include "signature/ContentReference.h"
25 #include "signature/SignableObject.h"
27 #include <xmltooling/signature/Signature.h>
28 #include <xercesc/util/XMLUniDefs.hpp>
29 #include <xsec/dsig/DSIGReference.hpp>
30 #include <xsec/dsig/DSIGSignature.hpp>
31 #include <xsec/dsig/DSIGTransformC14n.hpp>
33 using namespace opensaml;
34 using namespace xmltooling;
37 ContentReference::ContentReference(const SignableObject& signableObject)
38 : m_signableObject(signableObject), m_digest(NULL), m_c14n(NULL)
42 ContentReference::~ContentReference()
46 void ContentReference::createReferences(DSIGSignature* sig)
48 DSIGReference* ref=NULL;
49 const XMLCh* id=m_signableObject.getXMLID();
51 ref=sig->createReference(&chNull); // whole doc reference
53 XMLCh* buf=new XMLCh[XMLString::stringLen(id) + 2];
56 XMLString::catString(buf,id);
58 ref=sig->createReference(buf, m_digest ? m_digest : DSIGConstants::s_unicodeStrURISHA1);
67 ref->appendEnvelopedSignatureTransform();
68 DSIGTransformC14n* c14n=ref->appendCanonicalizationTransform(m_c14n ? m_c14n : DSIGConstants::s_unicodeStrURIEXC_C14N_NOC);
69 if (!m_c14n || m_c14n == DSIGConstants::s_unicodeStrURIEXC_C14N_NOC || m_c14n == DSIGConstants::s_unicodeStrURIEXC_C14N_COM) {
70 addPrefixes(m_signableObject);
73 for (set<xstring>::const_iterator p = m_prefixes.begin(); p!=m_prefixes.end(); ++p)
74 prefixes += *p + chSpace;
75 if (!prefixes.empty()) {
76 prefixes.erase(prefixes.begin() + prefixes.size() - 1);
77 c14n->setInclusiveNamespaces(XMLString::replicate(prefixes.c_str()));
80 for (set<string>::const_iterator p = m_prefixes.begin(); p!=m_prefixes.end(); ++p)
81 c14n->addInclusiveNamespace(p->c_str());
86 void ContentReference::addInclusivePrefix(const XMLCh* prefix)
88 static const XMLCh _default[] = { chPound, chLatin_d, chLatin_e, chLatin_f, chLatin_a, chLatin_u, chLatin_l, chLatin_t, chNull };
91 if (prefix && *prefix)
92 m_prefixes.insert(prefix);
94 m_prefixes.insert(_default);
96 if (prefix && *prefix) {
97 auto_ptr_char p(prefix);
98 m_prefixes.insert(p.get());
101 m_prefixes.insert("#default");
105 void ContentReference::setDigestAlgorithm(const XMLCh* digest)
110 void ContentReference::setCanonicalizationMethod(const XMLCh* c14n)
115 void ContentReference::addPrefixes(const std::set<Namespace>& namespaces)
117 for (set<Namespace>::const_iterator n = namespaces.begin(); n!=namespaces.end(); ++n) {
118 // Check for xmlns:xml.
119 if (!XMLString::equals(n->getNamespacePrefix(), xmlconstants::XML_PREFIX) || !XMLString::equals(n->getNamespaceURI(), xmlconstants::XML_NS))
120 addInclusivePrefix(n->getNamespacePrefix());
124 void ContentReference::addPrefixes(const XMLObject& xmlObject)
126 addPrefixes(xmlObject.getNamespaces());
127 const list<XMLObject*>& children = xmlObject.getOrderedChildren();
128 for (list<XMLObject*>::const_iterator child = children.begin(); child!=children.end(); ++child) {
130 addPrefixes(*(*child));