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22 * KeyInfoAttributeDecoder.cpp
24 * Decodes KeyInfo information into a SimpleAttribute.
28 #include "attribute/AttributeDecoder.h"
29 #include "attribute/SimpleAttribute.h"
31 #include <saml/saml1/core/Assertions.h>
32 #include <saml/saml2/core/Assertions.h>
33 #include <xmltooling/XMLToolingConfig.h>
34 #include <xmltooling/security/Credential.h>
35 #include <xmltooling/security/KeyInfoResolver.h>
36 #include <xmltooling/security/SecurityHelper.h>
37 #include <xmltooling/signature/KeyInfo.h>
39 using namespace shibsp;
40 using namespace opensaml;
41 using namespace xmlsignature;
42 using namespace xmltooling;
43 using namespace boost;
47 class SHIBSP_DLLLOCAL KeyInfoAttributeDecoder : virtual public AttributeDecoder
50 KeyInfoAttributeDecoder(const DOMElement* e);
51 ~KeyInfoAttributeDecoder() {}
54 const vector<string>& ids, const XMLObject* xmlObject, const char* assertingParty=nullptr, const char* relyingParty=nullptr
58 void extract(const KeyInfo* k, vector<string>& dest) const {
59 scoped_ptr<Credential> cred(getKeyInfoResolver()->resolve(k, Credential::RESOLVE_KEYS));
61 dest.push_back(string());
62 dest.back() = SecurityHelper::getDEREncoding(*cred, m_hash ? m_keyInfoHashAlg.c_str() : nullptr);
63 if (dest.back().empty())
68 const KeyInfoResolver* getKeyInfoResolver() const {
69 return m_keyInfoResolver ? m_keyInfoResolver.get() : XMLToolingConfig::getConfig().getKeyInfoResolver();
73 string m_keyInfoHashAlg;
74 scoped_ptr<KeyInfoResolver> m_keyInfoResolver;
77 AttributeDecoder* SHIBSP_DLLLOCAL KeyInfoAttributeDecoderFactory(const DOMElement* const & e)
79 return new KeyInfoAttributeDecoder(e);
82 static const XMLCh _KeyInfoResolver[] = UNICODE_LITERAL_15(K,e,y,I,n,f,o,R,e,s,o,l,v,e,r);
83 static const XMLCh _hash[] = UNICODE_LITERAL_4(h,a,s,h);
84 static const XMLCh keyInfoHashAlg[] = UNICODE_LITERAL_14(k,e,y,I,n,f,o,H,a,s,h,A,l,g);
85 static const XMLCh _type[] = UNICODE_LITERAL_4(t,y,p,e);
88 KeyInfoAttributeDecoder::KeyInfoAttributeDecoder(const DOMElement* e)
89 : AttributeDecoder(e),
90 m_hash(XMLHelper::getAttrBool(e, false, _hash)),
91 m_keyInfoHashAlg(XMLHelper::getAttrString(e, "SHA1", keyInfoHashAlg)) {
92 e = XMLHelper::getFirstChildElement(e, _KeyInfoResolver);
94 string t(XMLHelper::getAttrString(e, nullptr, _type));
96 throw UnknownExtensionException("<KeyInfoResolver> element found with no type attribute");
97 m_keyInfoResolver.reset(XMLToolingConfig::getConfig().KeyInfoResolverManager.newPlugin(t.c_str(), e));
101 Attribute* KeyInfoAttributeDecoder::decode(
102 const vector<string>& ids, const XMLObject* xmlObject, const char* assertingParty, const char* relyingParty
105 Category& log = Category::getInstance(SHIBSP_LOGCAT".AttributeDecoder.KeyInfo");
107 if (!xmlObject || !XMLString::equals(saml1::Attribute::LOCAL_NAME, xmlObject->getElementQName().getLocalPart())) {
108 log.warn("XMLObject type not recognized by KeyInfoAttributeDecoder, no values returned");
112 auto_ptr<SimpleAttribute> attr(new SimpleAttribute(ids));
113 vector<string>& dest = attr->getValues();
114 vector<XMLObject*>::const_iterator v,stop;
116 const saml2::Attribute* saml2attr = dynamic_cast<const saml2::Attribute*>(xmlObject);
118 const vector<XMLObject*>& values = saml2attr->getAttributeValues();
121 if (log.isDebugEnabled()) {
122 auto_ptr_char n(saml2attr->getName());
124 "decoding KeyInfo information (%s) from SAML 2 Attribute (%s) with %lu value(s)",
125 ids.front().c_str(), n.get() ? n.get() : "unnamed", values.size()
130 const saml1::Attribute* saml1attr = dynamic_cast<const saml1::Attribute*>(xmlObject);
132 const vector<XMLObject*>& values = saml1attr->getAttributeValues();
135 if (log.isDebugEnabled()) {
136 auto_ptr_char n(saml1attr->getAttributeName());
138 "decoding KeyInfo information (%s) from SAML 1 Attribute (%s) with %lu value(s)",
139 ids.front().c_str(), n.get() ? n.get() : "unnamed", values.size()
144 log.warn("XMLObject type not recognized by KeyInfoAttributeDecoder, no values returned");
149 for (; v!=stop; ++v) {
150 const KeyInfo* k = dynamic_cast<const KeyInfo*>(*v);
153 else if ((*v)->hasChildren()) {
154 const list<XMLObject*>& children = (*v)->getOrderedChildren();
155 for (list<XMLObject*>::const_iterator vv = children.begin(); vv != children.end(); ++vv) {
156 if (k=dynamic_cast<const KeyInfo*>(*vv))
159 log.warn("skipping AttributeValue without a recognizable KeyInfo");
164 return dest.empty() ? nullptr : _decode(attr.release());