2 * Copyright 2001-2009 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 * @file shibsp/attribute/Attribute.h
20 * A resolved attribute.
23 #ifndef __shibsp_attribute_h__
24 #define __shibsp_attribute_h__
26 #include <shibsp/exceptions.h>
27 #include <shibsp/remoting/ddf.h>
35 #if defined (_MSC_VER)
36 #pragma warning( push )
37 #pragma warning( disable : 4251 )
41 * A resolved attribute.
43 * <p>Resolved attributes are a neutral construct that represent both simple and
44 * complex attribute data structures that might be found in SAML assertions
45 * or obtained from other sources.
47 * <p>Attributes consist of an id/name that is locally unique (that is, unique to a
48 * configuration at any given point in time) and zero or more values. Values can
49 * be of any type or structure, but will generally be made available to applications
50 * only if a serialized string form exists. More complex values can be used with
51 * access control plugins and other components that understand them, however.
53 class SHIBSP_API Attribute
55 MAKE_NONCOPYABLE(Attribute);
60 * @param ids array with primary identifier in first position, followed by any aliases
62 Attribute(const std::vector<std::string>& ids) : m_id(ids), m_caseSensitive(true), m_internal(false) {
66 * Constructs based on a remoted Attribute.
68 * <p>This allows Attribute objects to be recreated after marshalling.
69 * The DDF supplied must be a struct containing a single list member named
70 * with the Attribute's "id" and containing the values.
72 * @param in input object containing marshalled Attribute
77 * Maintains a copy of serialized attribute values, when possible.
79 * <p>Implementations should maintain the array when values are added or removed.
81 mutable std::vector<std::string> m_serialized;
84 virtual ~Attribute() {}
87 * Returns the Attribute identifier.
89 * @return the Attribute identifier
91 const char* getId() const {
92 return m_id.front().c_str();
96 * Returns all of the effective names for the Attribute.
98 * @return immutable array of identifiers, with the primary ID in the first position
100 const std::vector<std::string>& getAliases() const {
105 * Returns all of the effective names for the Attribute.
107 * @return mutable array of identifiers, with the primary ID in the first position
109 std::vector<std::string>& getAliases() {
114 * Sets whether case sensitivity should apply to basic value comparisons.
116 * @param caseSensitive true iff value comparisons should be case sensitive
118 void setCaseSensitive(bool caseSensitive) {
119 m_caseSensitive = caseSensitive;
123 * Sets whether the attribute should be exported for CGI use.
125 * @param export true iff the attribute should <strong>NOT</strong> be exported
127 void setInternal(bool internal) {
128 m_internal = internal;
132 * Indicates whether case sensitivity should apply to basic value comparisons.
134 * @return true iff value comparisons should be case sensitive
136 bool isCaseSensitive() const {
137 return m_caseSensitive;
141 * Indicates whether the attribute should be exported for CGI use.
143 * @return true iff the attribute should <strong>NOT</strong> be exported
145 bool isInternal() const {
150 * Returns the number of values.
152 * @return number of values
154 virtual size_t valueCount() const {
155 return m_serialized.size();
159 * Returns serialized Attribute values encoded as UTF-8 strings.
161 * @return an immutable vector of values
163 virtual const std::vector<std::string>& getSerializedValues() const {
168 * Informs the Attribute that values have changed and any serializations
171 virtual void clearSerializedValues()=0;
174 * Gets the string equivalent of the value at the specified position (starting from zero).
176 * @param index position of value
177 * @return the specified value in its "string" form, or NULL if undefined
179 virtual const char* getString(size_t index) const {
180 return m_serialized[index].c_str();
184 * Gets the "scope" of the value at the specified position (starting from zero).
186 * @param index position of value
187 * @return the specified value's "scope", or NULL if attribute is unscoped
189 virtual const char* getScope(size_t index) const {
194 * Removes the value at the specified position (starting from zero).
196 * @param index position of value to remove
198 virtual void removeValue(size_t index) {
199 if (index < m_serialized.size())
200 m_serialized.erase(m_serialized.begin() + index);
204 * Marshalls an Attribute for remoting.
206 * <p>This allows Attribute objects to be communicated across process boundaries
207 * without excess XML parsing. The DDF returned must be a struct containing
208 * a single list member named with the Attribute's "id". The name of the struct
209 * should contain the registered name of the Attribute implementation.
211 virtual DDF marshall() const;
214 * Unmarshalls a remoted Attribute.
216 * @param in remoted Attribute data
217 * @return a resolved Attribute of the proper subclass
219 static Attribute* unmarshall(DDF& in);
221 /** A function that unmarshalls remoted data into the proper Attribute subclass. */
222 typedef Attribute* AttributeFactory(DDF& in);
225 * Registers an AttributeFactory function for a given attribute "type".
227 * @param type string used at the root of remoted Attribute structures
228 * @param factory factory function
230 static void registerFactory(const char* type, AttributeFactory* factory) {
231 m_factoryMap[type] = factory;
235 * Deregisters an AttributeFactory function for a given attribute "type".
237 * @param type string used at the root of remoted Attribute structures
239 static void deregisterFactory(const char* type) {
240 m_factoryMap.erase(type);
244 * Clears the map of factories.
246 static void deregisterFactories() {
247 m_factoryMap.clear();
251 static std::map<std::string,AttributeFactory*> m_factoryMap;
252 std::vector<std::string> m_id;
253 bool m_caseSensitive,m_internal;
256 #if defined (_MSC_VER)
257 #pragma warning( pop )
260 /** Registers built-in Attribute types into the runtime. */
261 void registerAttributeFactories();
265 #endif /* __shibsp_attribute_h__ */