From cb4a46e7fbe62d788e66ed6121c717a2d22a4d7c Mon Sep 17 00:00:00 2001 From: watcherhd Date: Thu, 21 Apr 2011 14:14:52 +0000 Subject: svn.miranda.im is moving to a new home! git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@7 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb --- cryptopp/crypto/algparam.h | 360 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 360 insertions(+) create mode 100644 cryptopp/crypto/algparam.h (limited to 'cryptopp/crypto/algparam.h') diff --git a/cryptopp/crypto/algparam.h b/cryptopp/crypto/algparam.h new file mode 100644 index 0000000..27555d4 --- /dev/null +++ b/cryptopp/crypto/algparam.h @@ -0,0 +1,360 @@ +#ifndef CRYPTOPP_ALGPARAM_H +#define CRYPTOPP_ALGPARAM_H + +#include "cryptlib.h" +#include "smartptr.h" +#include "secblock.h" + +NAMESPACE_BEGIN(CryptoPP) + +//! used to pass byte array input as part of a NameValuePairs object +/*! the deepCopy option is used when the NameValuePairs object can't + keep a copy of the data available */ +class ConstByteArrayParameter +{ +public: + ConstByteArrayParameter(const char *data = NULL, bool deepCopy = false) + { + Assign((const byte *)data, data ? strlen(data) : 0, deepCopy); + } + ConstByteArrayParameter(const byte *data, size_t size, bool deepCopy = false) + { + Assign(data, size, deepCopy); + } + template ConstByteArrayParameter(const T &string, bool deepCopy = false) + { + CRYPTOPP_COMPILE_ASSERT(sizeof(CPP_TYPENAME T::value_type) == 1); + Assign((const byte *)string.data(), string.size(), deepCopy); + } + + void Assign(const byte *data, size_t size, bool deepCopy) + { + if (deepCopy) + m_block.Assign(data, size); + else + { + m_data = data; + m_size = size; + } + m_deepCopy = deepCopy; + } + + const byte *begin() const {return m_deepCopy ? m_block.begin() : m_data;} + const byte *end() const {return m_deepCopy ? m_block.end() : m_data + m_size;} + size_t size() const {return m_deepCopy ? m_block.size() : m_size;} + +private: + bool m_deepCopy; + const byte *m_data; + size_t m_size; + SecByteBlock m_block; +}; + +class ByteArrayParameter +{ +public: + ByteArrayParameter(byte *data = NULL, unsigned int size = 0) + : m_data(data), m_size(size) {} + ByteArrayParameter(SecByteBlock &block) + : m_data(block.begin()), m_size(block.size()) {} + + byte *begin() const {return m_data;} + byte *end() const {return m_data + m_size;} + size_t size() const {return m_size;} + +private: + byte *m_data; + size_t m_size; +}; + +class CRYPTOPP_DLL CombinedNameValuePairs : public NameValuePairs +{ +public: + CombinedNameValuePairs(const NameValuePairs &pairs1, const NameValuePairs &pairs2) + : m_pairs1(pairs1), m_pairs2(pairs2) {} + + bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; + +private: + const NameValuePairs &m_pairs1, &m_pairs2; +}; + +template +class GetValueHelperClass +{ +public: + GetValueHelperClass(const T *pObject, const char *name, const std::type_info &valueType, void *pValue, const NameValuePairs *searchFirst) + : m_pObject(pObject), m_name(name), m_valueType(&valueType), m_pValue(pValue), m_found(false), m_getValueNames(false) + { + if (strcmp(m_name, "ValueNames") == 0) + { + m_found = m_getValueNames = true; + NameValuePairs::ThrowIfTypeMismatch(m_name, typeid(std::string), *m_valueType); + if (searchFirst) + searchFirst->GetVoidValue(m_name, valueType, pValue); + if (typeid(T) != typeid(BASE)) + pObject->BASE::GetVoidValue(m_name, valueType, pValue); + ((*reinterpret_cast(m_pValue) += "ThisPointer:") += typeid(T).name()) += ';'; + } + + if (!m_found && strncmp(m_name, "ThisPointer:", 12) == 0 && strcmp(m_name+12, typeid(T).name()) == 0) + { + NameValuePairs::ThrowIfTypeMismatch(m_name, typeid(T *), *m_valueType); + *reinterpret_cast(pValue) = pObject; + m_found = true; + return; + } + + if (!m_found && searchFirst) + m_found = searchFirst->GetVoidValue(m_name, valueType, pValue); + + if (!m_found && typeid(T) != typeid(BASE)) + m_found = pObject->BASE::GetVoidValue(m_name, valueType, pValue); + } + + operator bool() const {return m_found;} + + template + GetValueHelperClass & operator()(const char *name, const R & (T::*pm)() const) + { + if (m_getValueNames) + (*reinterpret_cast(m_pValue) += name) += ";"; + if (!m_found && strcmp(name, m_name) == 0) + { + NameValuePairs::ThrowIfTypeMismatch(name, typeid(R), *m_valueType); + *reinterpret_cast(m_pValue) = (m_pObject->*pm)(); + m_found = true; + } + return *this; + } + + GetValueHelperClass &Assignable() + { +#ifndef __INTEL_COMPILER // ICL 9.1 workaround: Intel compiler copies the vTable pointer for some reason + if (m_getValueNames) + ((*reinterpret_cast(m_pValue) += "ThisObject:") += typeid(T).name()) += ';'; + if (!m_found && strncmp(m_name, "ThisObject:", 11) == 0 && strcmp(m_name+11, typeid(T).name()) == 0) + { + NameValuePairs::ThrowIfTypeMismatch(m_name, typeid(T), *m_valueType); + *reinterpret_cast(m_pValue) = *m_pObject; + m_found = true; + } +#endif + return *this; + } + +private: + const T *m_pObject; + const char *m_name; + const std::type_info *m_valueType; + void *m_pValue; + bool m_found, m_getValueNames; +}; + +template +GetValueHelperClass GetValueHelper(const T *pObject, const char *name, const std::type_info &valueType, void *pValue, const NameValuePairs *searchFirst=NULL, BASE *dummy=NULL) +{ + return GetValueHelperClass(pObject, name, valueType, pValue, searchFirst); +} + +template +GetValueHelperClass GetValueHelper(const T *pObject, const char *name, const std::type_info &valueType, void *pValue, const NameValuePairs *searchFirst=NULL) +{ + return GetValueHelperClass(pObject, name, valueType, pValue, searchFirst); +} + +// ******************************************************** + +template +R Hack_DefaultValueFromConstReferenceType(const R &) +{ + return R(); +} + +template +bool Hack_GetValueIntoConstReference(const NameValuePairs &source, const char *name, const R &value) +{ + return source.GetValue(name, const_cast(value)); +} + +template +class AssignFromHelperClass +{ +public: + AssignFromHelperClass(T *pObject, const NameValuePairs &source) + : m_pObject(pObject), m_source(source), m_done(false) + { + if (source.GetThisObject(*pObject)) + m_done = true; + else if (typeid(BASE) != typeid(T)) + pObject->BASE::AssignFrom(source); + } + + template + AssignFromHelperClass & operator()(const char *name, void (T::*pm)(R)) // VC60 workaround: "const R &" here causes compiler error + { + if (!m_done) + { + R value = Hack_DefaultValueFromConstReferenceType(reinterpret_cast(*(int *)NULL)); + if (!Hack_GetValueIntoConstReference(m_source, name, value)) + throw InvalidArgument(std::string(typeid(T).name()) + ": Missing required parameter '" + name + "'"); + (m_pObject->*pm)(value); + } + return *this; + } + + template + AssignFromHelperClass & operator()(const char *name1, const char *name2, void (T::*pm)(R, S)) // VC60 workaround: "const R &" here causes compiler error + { + if (!m_done) + { + R value1 = Hack_DefaultValueFromConstReferenceType(reinterpret_cast(*(int *)NULL)); + if (!Hack_GetValueIntoConstReference(m_source, name1, value1)) + throw InvalidArgument(std::string(typeid(T).name()) + ": Missing required parameter '" + name1 + "'"); + S value2 = Hack_DefaultValueFromConstReferenceType(reinterpret_cast(*(int *)NULL)); + if (!Hack_GetValueIntoConstReference(m_source, name2, value2)) + throw InvalidArgument(std::string(typeid(T).name()) + ": Missing required parameter '" + name2 + "'"); + (m_pObject->*pm)(value1, value2); + } + return *this; + } + +private: + T *m_pObject; + const NameValuePairs &m_source; + bool m_done; +}; + +template +AssignFromHelperClass AssignFromHelper(T *pObject, const NameValuePairs &source, BASE *dummy=NULL) +{ + return AssignFromHelperClass(pObject, source); +} + +template +AssignFromHelperClass AssignFromHelper(T *pObject, const NameValuePairs &source) +{ + return AssignFromHelperClass(pObject, source); +} + +// ******************************************************** + +// to allow the linker to discard Integer code if not needed. +typedef bool (CRYPTOPP_API * PAssignIntToInteger)(const std::type_info &valueType, void *pInteger, const void *pInt); +CRYPTOPP_DLL extern PAssignIntToInteger g_pAssignIntToInteger; + +CRYPTOPP_DLL const std::type_info & CRYPTOPP_API IntegerTypeId(); + +class CRYPTOPP_DLL AlgorithmParametersBase : public NameValuePairs +{ +public: + class ParameterNotUsed : public Exception + { + public: + ParameterNotUsed(const char *name) : Exception(OTHER_ERROR, std::string("AlgorithmParametersBase: parameter \"") + name + "\" not used") {} + }; + + AlgorithmParametersBase(const char *name, bool throwIfNotUsed) + : m_name(name), m_throwIfNotUsed(throwIfNotUsed), m_used(false) {} + + ~AlgorithmParametersBase() + { +#ifdef CRYPTOPP_UNCAUGHT_EXCEPTION_AVAILABLE + if (!std::uncaught_exception()) +#else + try +#endif + { + if (m_throwIfNotUsed && !m_used) + throw ParameterNotUsed(m_name); + } +#ifndef CRYPTOPP_UNCAUGHT_EXCEPTION_AVAILABLE + catch(...) + { + } +#endif + } + + bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; + +protected: + virtual void AssignValue(const char *name, const std::type_info &valueType, void *pValue) const =0; + virtual const NameValuePairs & GetParent() const =0; + + const char *m_name; + bool m_throwIfNotUsed; + mutable bool m_used; +}; + +template +class AlgorithmParametersBase2 : public AlgorithmParametersBase +{ +public: + AlgorithmParametersBase2(const char *name, const T &value, bool throwIfNotUsed) : AlgorithmParametersBase(name, throwIfNotUsed), m_value(value) {} + + void AssignValue(const char *name, const std::type_info &valueType, void *pValue) const + { + // special case for retrieving an Integer parameter when an int was passed in + if (!(g_pAssignIntToInteger != NULL && typeid(T) == typeid(int) && g_pAssignIntToInteger(valueType, pValue, &m_value))) + { + ThrowIfTypeMismatch(name, typeid(T), valueType); + *reinterpret_cast(pValue) = m_value; + } + } + +protected: + T m_value; +}; + +template +class AlgorithmParameters : public AlgorithmParametersBase2 +{ +public: + AlgorithmParameters(const PARENT &parent, const char *name, const T &value, bool throwIfNotUsed) + : AlgorithmParametersBase2(name, value, throwIfNotUsed), m_parent(parent) + {} + + AlgorithmParameters(const AlgorithmParameters ©) + : AlgorithmParametersBase2(copy), m_parent(copy.m_parent) + { + copy.m_used = true; + } + + template + AlgorithmParameters, R> operator()(const char *name, const R &value) const + { + return AlgorithmParameters, R>(*this, name, value, this->m_throwIfNotUsed); + } + + template + AlgorithmParameters, R> operator()(const char *name, const R &value, bool throwIfNotUsed) const + { + return AlgorithmParameters, R>(*this, name, value, throwIfNotUsed); + } + +private: + const NameValuePairs & GetParent() const {return m_parent;} + PARENT m_parent; +}; + +//! Create an object that implements NameValuePairs for passing parameters +/*! \param throwIfNotUsed if true, the object will throw an exception if the value is not accessed + \note throwIfNotUsed is ignored if using a compiler that does not support std::uncaught_exception(), + such as MSVC 7.0 and earlier. + \note A NameValuePairs object containing an arbitrary number of name value pairs may be constructed by + repeatedly using operator() on the object returned by MakeParameters, for example: + const NameValuePairs ¶meters = MakeParameters(name1, value1)(name2, value2)(name3, value3); +*/ +template +AlgorithmParameters MakeParameters(const char *name, const T &value, bool throwIfNotUsed = true) +{ + return AlgorithmParameters(g_nullNameValuePairs, name, value, throwIfNotUsed); +} + +#define CRYPTOPP_GET_FUNCTION_ENTRY(name) (Name::name(), &ThisClass::Get##name) +#define CRYPTOPP_SET_FUNCTION_ENTRY(name) (Name::name(), &ThisClass::Set##name) +#define CRYPTOPP_SET_FUNCTION_ENTRY2(name1, name2) (Name::name1(), Name::name2(), &ThisClass::Set##name1##And##name2) + +NAMESPACE_END + +#endif -- cgit v1.2.3