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22 * ChainingCredentialResolver.cpp
24 * CredentialResolver with chaining capability.
29 #include "XMLToolingConfig.h"
30 #include "security/CredentialResolver.h"
32 #include "util/XMLHelper.h"
36 #include <boost/bind.hpp>
37 #include <boost/ptr_container/ptr_vector.hpp>
38 #include <xercesc/util/XMLUniDefs.hpp>
40 using namespace xmltooling::logging;
41 using namespace xmltooling;
42 using namespace boost;
45 using xercesc::DOMElement;
47 namespace xmltooling {
48 class XMLTOOL_DLLLOCAL ChainingCredentialResolver : public CredentialResolver
51 ChainingCredentialResolver(const DOMElement* e);
52 virtual ~ChainingCredentialResolver() {}
55 for_each(m_resolvers.begin(), m_resolvers.end(), mem_fun_ref(&Lockable::lock));
59 for_each(m_resolvers.begin(), m_resolvers.end(), mem_fun_ref(&Lockable::unlock));
62 const Credential* resolve(const CredentialCriteria* criteria=nullptr) const {
63 const Credential* cred = nullptr;
64 for (ptr_vector<CredentialResolver>::const_iterator cr = m_resolvers.begin(); !cred && cr!=m_resolvers.end(); ++cr)
65 cred = cr->resolve(criteria);
69 virtual vector<const Credential*>::size_type resolve(
70 vector<const Credential*>& results, const CredentialCriteria* criteria=nullptr
73 // Member function pointer to method to call.
74 static vector<const Credential*>::size_type (CredentialResolver::* fn)
75 (vector<const Credential*>& results, const CredentialCriteria* criteria) const = &CredentialResolver::resolve;
77 // ref() converts pass by copy to pass by reference for output parameter
78 for_each(m_resolvers.begin(), m_resolvers.end(), boost::bind(fn, _1, boost::ref(results), criteria));
79 return results.size();
83 ptr_vector<CredentialResolver> m_resolvers;
86 CredentialResolver* XMLTOOL_DLLLOCAL ChainingCredentialResolverFactory(const DOMElement* const & e)
88 return new ChainingCredentialResolver(e);
91 static const XMLCh _CredentialResolver[] = UNICODE_LITERAL_18(C,r,e,d,e,n,t,i,a,l,R,e,s,o,l,v,e,r);
92 static const XMLCh type[] = UNICODE_LITERAL_4(t,y,p,e);
95 ChainingCredentialResolver::ChainingCredentialResolver(const DOMElement* e)
97 XMLToolingConfig& conf = XMLToolingConfig::getConfig();
98 Category& log=Category::getInstance(XMLTOOLING_LOGCAT".CredentialResolver."CHAINING_CREDENTIAL_RESOLVER);
100 // Load up the chain of resolvers.
101 e = e ? XMLHelper::getFirstChildElement(e, _CredentialResolver) : nullptr;
103 string t = XMLHelper::getAttrString(e, nullptr, type);
105 log.info("building CredentialResolver of type %s", t.c_str());
107 m_resolvers.push_back(conf.CredentialResolverManager.newPlugin(t.c_str(), e));
109 catch (exception& ex) {
110 log.error("caught exception processing embedded CredentialResolver element: %s", ex.what());
113 e = XMLHelper::getNextSiblingElement(e, _CredentialResolver);