/usr/include/crypto++/factory.h is in libcrypto++-dev 5.6.1-6+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | #ifndef CRYPTOPP_OBJFACT_H
#define CRYPTOPP_OBJFACT_H
#include "cryptlib.h"
#include <map>
#include <vector>
NAMESPACE_BEGIN(CryptoPP)
//! _
template <class AbstractClass>
class ObjectFactory
{
public:
virtual AbstractClass * CreateObject() const =0;
};
//! _
template <class AbstractClass, class ConcreteClass>
class DefaultObjectFactory : public ObjectFactory<AbstractClass>
{
public:
AbstractClass * CreateObject() const
{
return new ConcreteClass;
}
};
//! _
template <class AbstractClass, int instance=0>
class ObjectFactoryRegistry
{
public:
class FactoryNotFound : public Exception
{
public:
FactoryNotFound(const char *name) : Exception(OTHER_ERROR, std::string("ObjectFactoryRegistry: could not find factory for algorithm ") + name) {}
};
~ObjectFactoryRegistry()
{
for (CPP_TYPENAME Map::iterator i = m_map.begin(); i != m_map.end(); ++i)
{
delete (ObjectFactory<AbstractClass> *)i->second;
i->second = NULL;
}
}
void RegisterFactory(const std::string &name, ObjectFactory<AbstractClass> *factory)
{
m_map[name] = factory;
}
const ObjectFactory<AbstractClass> * GetFactory(const char *name) const
{
CPP_TYPENAME Map::const_iterator i = m_map.find(name);
return i == m_map.end() ? NULL : (ObjectFactory<AbstractClass> *)i->second;
}
AbstractClass *CreateObject(const char *name) const
{
const ObjectFactory<AbstractClass> *factory = GetFactory(name);
if (!factory)
throw FactoryNotFound(name);
return factory->CreateObject();
}
// Return a vector containing the factory names. This is easier than returning an iterator.
// from Andrew Pitonyak
std::vector<std::string> GetFactoryNames() const
{
std::vector<std::string> names;
CPP_TYPENAME Map::const_iterator iter;
for (iter = m_map.begin(); iter != m_map.end(); ++iter)
names.push_back(iter->first);
return names;
}
CRYPTOPP_NOINLINE static ObjectFactoryRegistry<AbstractClass, instance> & Registry(CRYPTOPP_NOINLINE_DOTDOTDOT);
private:
// use void * instead of ObjectFactory<AbstractClass> * to save code size
typedef std::map<std::string, void *> Map;
Map m_map;
};
template <class AbstractClass, int instance>
ObjectFactoryRegistry<AbstractClass, instance> & ObjectFactoryRegistry<AbstractClass, instance>::Registry(CRYPTOPP_NOINLINE_DOTDOTDOT)
{
static ObjectFactoryRegistry<AbstractClass, instance> s_registry;
return s_registry;
}
template <class AbstractClass, class ConcreteClass, int instance = 0>
struct RegisterDefaultFactoryFor {
RegisterDefaultFactoryFor(const char *name=NULL)
{
// BCB2006 workaround
std::string n = name ? std::string(name) : std::string(ConcreteClass::StaticAlgorithmName());
ObjectFactoryRegistry<AbstractClass, instance>::Registry().
RegisterFactory(n, new DefaultObjectFactory<AbstractClass, ConcreteClass>);
}};
template <class SchemeClass>
void RegisterAsymmetricCipherDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<PK_Encryptor, CPP_TYPENAME SchemeClass::Encryptor>((const char *)name);
RegisterDefaultFactoryFor<PK_Decryptor, CPP_TYPENAME SchemeClass::Decryptor>((const char *)name);
}
template <class SchemeClass>
void RegisterSignatureSchemeDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<PK_Signer, CPP_TYPENAME SchemeClass::Signer>((const char *)name);
RegisterDefaultFactoryFor<PK_Verifier, CPP_TYPENAME SchemeClass::Verifier>((const char *)name);
}
template <class SchemeClass>
void RegisterSymmetricCipherDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<SymmetricCipher, CPP_TYPENAME SchemeClass::Encryption, ENCRYPTION>((const char *)name);
RegisterDefaultFactoryFor<SymmetricCipher, CPP_TYPENAME SchemeClass::Decryption, DECRYPTION>((const char *)name);
}
template <class SchemeClass>
void RegisterAuthenticatedSymmetricCipherDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<AuthenticatedSymmetricCipher, CPP_TYPENAME SchemeClass::Encryption, ENCRYPTION>((const char *)name);
RegisterDefaultFactoryFor<AuthenticatedSymmetricCipher, CPP_TYPENAME SchemeClass::Decryption, DECRYPTION>((const char *)name);
}
NAMESPACE_END
#endif
|