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22 * XMLProtocolProvider.cpp
24 * XML-based protocol provider.
28 #include "exceptions.h"
29 #include "binding/ProtocolProvider.h"
30 #include "util/DOMPropertySet.h"
31 #include "util/SPConstants.h"
34 #include <boost/scoped_ptr.hpp>
35 #include <boost/shared_ptr.hpp>
36 #include <xmltooling/io/HTTPResponse.h>
37 #include <xmltooling/util/NDC.h>
38 #include <xmltooling/util/ReloadableXMLFile.h>
39 #include <xmltooling/util/Threads.h>
40 #include <xmltooling/util/XMLHelper.h>
41 #include <xercesc/util/XMLUniDefs.hpp>
43 using shibspconstants::SHIB2SPPROTOCOLS_NS;
44 using namespace shibsp;
45 using namespace xmltooling;
46 using namespace boost;
50 static const XMLCh _id[] = UNICODE_LITERAL_2(i,d);
51 static const XMLCh Binding[] = UNICODE_LITERAL_7(B,i,n,d,i,n,g);
52 static const XMLCh Initiator[] = UNICODE_LITERAL_9(I,n,i,t,i,a,t,o,r);
53 static const XMLCh Protocol[] = UNICODE_LITERAL_8(P,r,o,t,o,c,o,l);
54 static const XMLCh Protocols[] = UNICODE_LITERAL_9(P,r,o,t,o,c,o,l,s);
55 static const XMLCh Service[] = UNICODE_LITERAL_7(S,e,r,v,i,c,e);
57 #if defined (_MSC_VER)
58 #pragma warning( push )
59 #pragma warning( disable : 4250 )
62 class SHIBSP_DLLLOCAL XMLProtocolProviderImpl : public DOMNodeFilter, DOMPropertySet
65 XMLProtocolProviderImpl(const DOMElement* e, Category& log);
66 ~XMLProtocolProviderImpl() {
68 m_document->release();
71 void setDocument(DOMDocument* doc) {
75 #ifdef SHIBSP_XERCESC_SHORT_ACCEPTNODE
80 acceptNode(const DOMNode* node) const {
85 DOMDocument* m_document;
86 // Map of protocol/service pair to an Initiator propset plus an array of Binding propsets.
87 typedef map< pair<string,string>, pair< const PropertySet*,vector<const PropertySet*> > > protmap_t;
89 vector< boost::shared_ptr<PropertySet> > m_propsetJanitor; // needed to maintain vector API
91 friend class SHIBSP_DLLLOCAL XMLProtocolProvider;
94 class XMLProtocolProvider : public ProtocolProvider, public ReloadableXMLFile
97 XMLProtocolProvider(const DOMElement* e)
98 : ReloadableXMLFile(e, Category::getInstance(SHIBSP_LOGCAT".ProtocolProvider.XML")) {
99 background_load(); // guarantees an exception or the policy is loaded
102 ~XMLProtocolProvider() {
106 const PropertySet* getInitiator(const char* protocol, const char* service) const {
107 XMLProtocolProviderImpl::protmap_t::const_iterator i = m_impl->m_map.find(pair<string,string>(protocol,service));
108 return (i != m_impl->m_map.end()) ? i->second.first : nullptr;
111 const vector<const PropertySet*>& getBindings(const char* protocol, const char* service) const {
112 XMLProtocolProviderImpl::protmap_t::const_iterator i = m_impl->m_map.find(pair<string,string>(protocol,service));
113 return (i != m_impl->m_map.end()) ? i->second.second : m_noBindings;
117 pair<bool,DOMElement*> load(bool backup);
118 pair<bool,DOMElement*> background_load();
121 static vector<const PropertySet*> m_noBindings;
122 scoped_ptr<XMLProtocolProviderImpl> m_impl;
125 #if defined (_MSC_VER)
126 #pragma warning( pop )
129 ProtocolProvider* SHIBSP_DLLLOCAL XMLProtocolProviderFactory(const DOMElement* const & e)
131 return new XMLProtocolProvider(e);
135 void SHIBSP_API shibsp::registerProtocolProviders()
137 SPConfig::getConfig().ProtocolProviderManager.registerFactory(XML_PROTOCOL_PROVIDER, XMLProtocolProviderFactory);
140 ProtocolProvider::ProtocolProvider()
144 ProtocolProvider::~ProtocolProvider()
148 vector<const PropertySet*> XMLProtocolProvider::m_noBindings;
150 XMLProtocolProviderImpl::XMLProtocolProviderImpl(const DOMElement* e, Category& log) : m_document(nullptr)
153 xmltooling::NDC ndc("XMLProtocolProviderImpl");
155 if (!XMLHelper::isNodeNamed(e, SHIB2SPPROTOCOLS_NS, Protocols))
156 throw ConfigurationException("XML ProtocolProvider requires prot:Protocols at root of configuration.");
158 e = XMLHelper::getFirstChildElement(e, SHIB2SPPROTOCOLS_NS, Protocol);
160 string id = XMLHelper::getAttrString(e, nullptr, _id);
162 const DOMElement* svc = XMLHelper::getFirstChildElement(e, SHIB2SPPROTOCOLS_NS, Service);
164 string svcid = XMLHelper::getAttrString(svc, nullptr, _id);
165 if (!svcid.empty() && m_map.count(make_pair(id,svcid)) == 0) {
166 pair< const PropertySet*,vector<const PropertySet*> >& entry = m_map[make_pair(id,svcid)];
167 // Wrap the Initiator in a propset, if any.
168 const DOMElement* child = XMLHelper::getFirstChildElement(svc, SHIB2SPPROTOCOLS_NS, Initiator);
170 boost::shared_ptr<DOMPropertySet> initprop(new DOMPropertySet());
171 initprop->load(child, nullptr, this);
172 m_propsetJanitor.push_back(initprop);
173 entry.first = initprop.get();
176 entry.first = nullptr;
179 // Walk the Bindings.
180 child = XMLHelper::getFirstChildElement(svc, SHIB2SPPROTOCOLS_NS, Binding);
182 boost::shared_ptr<DOMPropertySet> bindprop(new DOMPropertySet());
183 bindprop->load(child, nullptr, this);
184 m_propsetJanitor.push_back(bindprop);
185 entry.second.push_back(bindprop.get());
186 child = XMLHelper::getNextSiblingElement(child, SHIB2SPPROTOCOLS_NS, Binding);
189 svc = XMLHelper::getNextSiblingElement(svc, SHIB2SPPROTOCOLS_NS, Service);
192 e = XMLHelper::getNextSiblingElement(e, SHIB2SPPROTOCOLS_NS, Protocol);
197 pair<bool,DOMElement*> XMLProtocolProvider::load(bool backup)
199 // Load from source using base class.
200 pair<bool,DOMElement*> raw = ReloadableXMLFile::load(backup);
202 // If we own it, wrap it.
203 XercesJanitor<DOMDocument> docjanitor(raw.first ? raw.second->getOwnerDocument() : nullptr);
205 scoped_ptr<XMLProtocolProviderImpl> impl(new XMLProtocolProviderImpl(raw.second, m_log));
207 // If we held the document, transfer it to the impl. If we didn't, it's a no-op.
208 impl->setDocument(docjanitor.release());
210 // Perform the swap inside a lock.
213 SharedLock locker(m_lock, false);
217 return make_pair(false,(DOMElement*)nullptr);
220 pair<bool,DOMElement*> XMLProtocolProvider::background_load()
226 if (ex == HTTPResponse::XMLTOOLING_HTTP_STATUS_NOTMODIFIED)
227 m_log.info("remote resource (%s) unchanged", m_source.c_str());
228 if (!m_loaded && !m_backing.empty())
232 catch (std::exception&) {
233 if (!m_loaded && !m_backing.empty())