2 * Copyright 2001-2010 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 void SignableObject::declareNonVisibleNamespaces() const
39 ContentReference* cr = getSignature() ? dynamic_cast<ContentReference*>(getSignature()->getContentReference()) : nullptr;
41 // Compute inclusive prefix set.
42 map<xstring,xstring> decls;
43 XMLHelper::getNonVisiblyUsedPrefixes(*this, decls);
45 for (map<xstring,xstring>::const_iterator decl = decls.begin(); decl != decls.end(); ++decl) {
47 // Pin it to the object root. An existing copy of the prefix on the root will take precedence.
48 addNamespace(Namespace(decl->second.c_str(), decl->first.c_str(), true, Namespace::NonVisiblyUsed));
50 // Add to content reference, if any.
52 cr->addInclusivePrefix(decl->first.c_str());
56 ContentReference::ContentReference(const SignableObject& signableObject)
57 : m_signableObject(signableObject), m_digest(nullptr), m_c14n(nullptr)
61 ContentReference::~ContentReference()
65 void ContentReference::createReferences(DSIGSignature* sig)
67 DSIGReference* ref = nullptr;
68 const XMLCh* id=m_signableObject.getXMLID();
70 ref=sig->createReference(&chNull, m_digest ? m_digest : DSIGConstants::s_unicodeStrURISHA1); // whole doc reference
72 XMLCh* buf=new XMLCh[XMLString::stringLen(id) + 2];
75 XMLString::catString(buf,id);
77 ref=sig->createReference(buf, m_digest ? m_digest : DSIGConstants::s_unicodeStrURISHA1);
86 ref->appendEnvelopedSignatureTransform();
87 DSIGTransformC14n* c14n=ref->appendCanonicalizationTransform(m_c14n ? m_c14n : DSIGConstants::s_unicodeStrURIEXC_C14N_NOC);
89 if (!m_c14n || m_c14n == DSIGConstants::s_unicodeStrURIEXC_C14N_NOC || m_c14n == DSIGConstants::s_unicodeStrURIEXC_C14N_COM) {
90 // Build up the string of prefixes.
92 static const XMLCh _default[] = { chPound, chLatin_d, chLatin_e, chLatin_f, chLatin_a, chLatin_u, chLatin_l, chLatin_t, chNull };
93 for (set<xstring>::const_iterator p = m_prefixes.begin(); p != m_prefixes.end(); ++p) {
94 prefixes += (p->empty() ? _default : p->c_str());
97 if (!prefixes.empty()) {
98 prefixes.erase(prefixes.begin() + prefixes.size() - 1);
99 c14n->setInclusiveNamespaces(const_cast<XMLCh*>(prefixes.c_str()));
104 void ContentReference::addInclusivePrefix(const XMLCh* prefix)
106 m_prefixes.insert(prefix ? prefix : &chNull);
109 void ContentReference::setDigestAlgorithm(const XMLCh* digest)
114 void ContentReference::setCanonicalizationMethod(const XMLCh* c14n)