/*
- * Copyright 2001-2006 Internet2
+ * Copyright 2001-2007 Internet2
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*/
/**
- * @file MetadataProvider.h
+ * @file saml/saml2/metadata/MetadataProvider.h
*
* Supplies an individual source of metadata.
*/
#ifndef __saml2_metadataprov_h__
#define __saml2_metadataprov_h__
-#include <xmltooling/Lockable.h>
-#include <saml/saml2/metadata/MetadataFilter.h>
+#include <saml/base.h>
+#include <xmltooling/exceptions.h>
+#include <xmltooling/XMLObject.h>
+#include <xmltooling/security/CredentialResolver.h>
namespace opensaml {
+
+ class SAML_API SAMLArtifact;
namespace saml2md {
-
+
+ class SAML_API EntityDescriptor;
+ class SAML_API EntitiesDescriptor;
+ class SAML_API RoleDescriptor;
+ class SAML_API MetadataCredentialResolver;
+ class SAML_API MetadataFilter;
+
+#if defined (_MSC_VER)
+ #pragma warning( push )
+ #pragma warning( disable : 4251 )
+#endif
+
/**
* Supplies an individual source of metadata.
*
* The source can be a local file, remote service, or the result of a
- * dynamic lookup, can include local caching, etc.
+ * dynamic lookup, can include local caching, etc. Providers
+ * <strong>MUST</strong> be locked before any lookup operations.
*/
- class SAML_API MetadataProvider : public virtual xmltooling::Lockable
+ class SAML_API MetadataProvider : public virtual xmltooling::CredentialResolver
{
MAKE_NONCOPYABLE(MetadataProvider);
protected:
- MetadataProvider() : m_filter(NULL) {}
+ /**
+ * Constructor.
+ *
+ * If a DOM is supplied, a set of default logic will be used to identify
+ * and build MetadataFilter plugins and install them into the provider.
+ *
+ * The following XML content is supported:
+ *
+ * <ul>
+ * <li><MetadataFilter> elements with a type attribute and type-specific content
+ * <li><Exclude> elements representing a BlacklistMetadataFilter
+ * <li><BlacklistMetadataFilter> element containing <Exclude> elements
+ * <li><Include> elements representing a WhitelistMetadataFilter
+ * <li><SignatureMetadataFilter> element containing a <KeyResolver> element
+ * <li><WhitelistMetadataFilter> element containing <Include> elements
+ * </ul>
+ *
+ * XML namespaces are ignored in the processing of these elements.
+ *
+ * @param e DOM to supply configuration for provider
+ */
+ MetadataProvider(const xercesc::DOMElement* e=NULL);
public:
- virtual ~MetadataProvider() {
- delete m_filter;
- }
+ /**
+ * Destructor will delete any installed filters.
+ */
+ virtual ~MetadataProvider();
/**
- * Gets the metadata filter applied to the resolved metadata.
+ * Adds a metadata filter to apply to any resolved metadata. Will not be applied
+ * to metadata that is already loaded.
*
- * @return the metadata filter applied to the resolved metadata
+ * @param newFilter metadata filter to add
*/
- const MetadataFilter* getMetadataFilter() const {
- return m_filter;
+ virtual void addMetadataFilter(MetadataFilter* newFilter) {
+ m_filters.push_back(newFilter);
}
-
+
/**
- * Sets the metadata filter applied to the resolved metadata.
+ * Removes a metadata filter. The caller must delete the filter if necessary.
*
- * @param newFilter the metadata filter applied to the resolved metadata
+ * @param oldFilter metadata filter to remove
+ * @return the old filter
*/
- void setMetadataFilter(MetadataFilter* newFilter) {
- delete m_filter;
- m_filter=newFilter;
+ virtual MetadataFilter* removeMetadataFilter(MetadataFilter* oldFilter) {
+ for (std::vector<MetadataFilter*>::iterator i=m_filters.begin(); i!=m_filters.end(); i++) {
+ if (oldFilter==(*i)) {
+ m_filters.erase(i);
+ return oldFilter;
+ }
+ }
+ return NULL;
}
/**
- * Should be called after instantiating provider and setting filter, but before
+ * Should be called after instantiating provider and adding filters, but before
* performing any lookup operations. Allows the provider to defer initialization
* processes that are likely to result in exceptions until after the provider is
* safely created. Providers SHOULD perform as much processing as possible in
* this method so as to report/log any errors that would affect later processing.
- * Also, any inputs supplied to the factory MUST persist until the completion of
- * this method, but the caller is then free to modify or delete them.
*/
virtual void init()=0;
/**
- * Gets the metadata for a given entity. If a valid entity is returned,
- * the provider will be left in a locked state. The caller MUST unlock the
- * provider when finished with the entity.
- *
- * @param id the ID of the entity
- * @param requireValidMetadata indicates whether the metadata for the entity must be valid/current
- *
- * @return the entity's metadata or NULL if there is no metadata or no valid metadata
- */
- virtual const EntityDescriptor* lookup(const XMLCh* id, bool requireValidMetadata=true) const=0;
-
- /**
- * Gets the metadata for a given entity. If a valid entity is returned,
- * the provider will be left in a locked state. The caller MUST unlock the
- * provider when finished with the entity.
- *
- * @param id the ID of the entity
- * @param requireValidMetadata indicates whether the metadata for the entity must be valid/current
+ * Gets the entire metadata tree, after the registered filter has been applied.
+ * The caller MUST unlock the provider when finished with the data.
*
- * @return the entity's metadata or NULL if there is no metadata or no valid metadata
+ * @return the entire metadata tree
*/
- virtual const EntityDescriptor* lookup(const char* id, bool requireValidMetadata=true) const=0;
-
+ virtual const xmltooling::XMLObject* getMetadata() const=0;
+
/**
* Gets the metadata for a given group of entities. If a valid group is returned,
* the resolver will be left in a locked state. The caller MUST unlock the
*
* @return the group's metadata or NULL if there is no metadata or no valid metadata
*/
- virtual const EntitiesDescriptor* lookupGroup(const XMLCh* name, bool requireValidMetadata=true) const=0;
+ virtual const EntitiesDescriptor* getEntitiesDescriptor(const XMLCh* name, bool requireValidMetadata=true) const;
/**
* Gets the metadata for a given group of entities. If a valid group is returned,
*
* @return the group's metadata or NULL if there is no metadata or no valid metadata
*/
- virtual const EntitiesDescriptor* lookupGroup(const char* name, bool requireValidMetadata=true) const=0;
+ virtual const EntitiesDescriptor* getEntitiesDescriptor(const char* name, bool requireValidMetadata=true) const=0;
+
+ /**
+ * Batches up criteria for entity lookup.
+ */
+ struct SAML_API Criteria {
+ /**
+ * Default constructor.
+ */
+ Criteria() : entityID_unicode(NULL), entityID_ascii(NULL), artifact(NULL), role(NULL), protocol(NULL), protocol2(NULL), validOnly(true) {
+ }
+
+ /**
+ * Constructor.
+ *
+ * @param id entityID to lookup
+ * @param q element/type of role, if any
+ * @param prot protocol support constant, if any
+ * @param valid true iff stale metadata should be ignored
+ */
+ Criteria(const XMLCh* id, const xmltooling::QName* q=NULL, const XMLCh* prot=NULL, bool valid=true)
+ : entityID_unicode(id), entityID_ascii(NULL), artifact(NULL), role(q), protocol(prot), protocol2(NULL), validOnly(valid) {
+ }
+
+ /**
+ * Constructor.
+ *
+ * @param id entityID to lookup
+ * @param q element/type of role, if any
+ * @param prot protocol support constant, if any
+ * @param valid true iff stale metadata should be ignored
+ */
+ Criteria(const char* id, const xmltooling::QName* q=NULL, const XMLCh* prot=NULL, bool valid=true)
+ : entityID_unicode(NULL), entityID_ascii(id), artifact(NULL), role(q), protocol(prot), protocol2(NULL), validOnly(valid) {
+ }
+
+ /**
+ * Constructor.
+ *
+ * @param a artifact to lookup
+ * @param q element/type of role, if any
+ * @param prot protocol support constant, if any
+ * @param valid true iff stale metadata should be ignored
+ */
+ Criteria(const SAMLArtifact* a, const xmltooling::QName* q=NULL, const XMLCh* prot=NULL, bool valid=true)
+ : entityID_unicode(NULL), entityID_ascii(NULL), artifact(a), role(q), protocol(prot), protocol2(NULL), validOnly(valid) {
+ }
+
+ virtual ~Criteria() {}
+
+ /** Unique ID of entity. */
+ const XMLCh* entityID_unicode;
+ /** Unique ID of entity. */
+ const char* entityID_ascii;
+ /** SAML artifact */
+ const SAMLArtifact* artifact;
+ /** Element or schema type QName of metadata role. */
+ const xmltooling::QName* role;
+ /** Protocol support constant. */
+ const XMLCh* protocol;
+ /** Backup protocol support constant. */
+ const XMLCh* protocol2;
+ /** Controls whether stale metadata is ignored. */
+ bool validOnly;
+ };
+
+ /**
+ * Gets entity metadata based on supplied criteria. If a valid entity is returned,
+ * the provider will be left in a locked state. The caller MUST unlock the
+ * provider when finished with the entity.
+ *
+ * @param criteria lookup criteria
+ *
+ * @return the entity's metadata (and optionally a role) or NULL if there is no qualifying metadata
+ */
+ virtual std::pair<const EntityDescriptor*,const RoleDescriptor*> getEntityDescriptor(const Criteria& criteria) const=0;
protected:
- MetadataFilter* m_filter;
+ /**
+ * Applies any installed filters to a metadata instance.
+ *
+ * @param xmlObject the metadata to be filtered
+ */
+ void doFilters(xmltooling::XMLObject& xmlObject) const;
+
+ private:
+ std::vector<MetadataFilter*> m_filters;
};
-
+
+#if defined (_MSC_VER)
+ #pragma warning( pop )
+#endif
+
/**
* Registers MetadataProvider classes into the runtime.
*/
void SAML_API registerMetadataProviders();
- /** MetadataProvider based on local XML files */
- #define FILESYSTEM_METADATA_PROVIDER "org.opensaml.saml2.metadata.provider.FilesystemMetadataProvider"
+ /** MetadataProvider based on local or remote XML file */
+ #define XML_METADATA_PROVIDER "XML"
+
+ /** MetadataProvider based on dynamic resolution */
+ #define DYNAMIC_METADATA_PROVIDER "Dynamic"
+
+ /** MetadataProvider that wraps a sequence of metadata providers. */
+ #define CHAINING_METADATA_PROVIDER "Chaining"
+
+ /** MetadataProvider that returns an empty "dummy" entity descriptor. */
+ #define NULL_METADATA_PROVIDER "Null"
+
+ DECL_XMLTOOLING_EXCEPTION(MetadataException,SAML_EXCEPTIONAPI(SAML_API),opensaml::saml2md,xmltooling::XMLToolingException,Exceptions related to metadata use);
};
};
projects / shibboleth / cpp-opensaml.git / blobdiff