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/* SPDX-License-Identifier: BSL-1.0 OR BSD-3-Clause */
#ifndef MPT_UUID_GUID_HPP
#define MPT_UUID_GUID_HPP
#include "mpt/base/detect.hpp"
#include "mpt/base/namespace.hpp"
#include "mpt/out_of_memory/out_of_memory.hpp"
#include "mpt/string/types.hpp"
#include "mpt/string_transcode/transcode.hpp"
#include "mpt/uuid/uuid.hpp"
#include <stdexcept>
#include <vector>
#if MPT_OS_WINDOWS
#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0600)
#include <guiddef.h>
#endif // _WIN32_WINNT
#include <objbase.h>
#include <rpc.h>
#endif // MPT_OS_WINDOWS
namespace mpt {
inline namespace MPT_INLINE_NS {
#if MPT_OS_WINDOWS
// COM CLSID<->string conversion
// A CLSID string is not necessarily a standard UUID string,
// it might also be a symbolic name for the interface.
// (see CLSIDFromString ( http://msdn.microsoft.com/en-us/library/windows/desktop/ms680589%28v=vs.85%29.aspx ))
inline mpt::winstring CLSIDToString(CLSID clsid) {
std::wstring str;
LPOLESTR tmp = nullptr;
switch (::StringFromCLSID(clsid, &tmp)) {
case S_OK:
break;
case E_OUTOFMEMORY:
if (tmp) {
::CoTaskMemFree(tmp);
tmp = nullptr;
}
mpt::throw_out_of_memory();
break;
default:
if (tmp) {
::CoTaskMemFree(tmp);
tmp = nullptr;
}
throw std::logic_error("StringFromCLSID() failed.");
break;
}
if (!tmp) {
throw std::logic_error("StringFromCLSID() failed.");
}
try {
str = tmp;
} catch (mpt::out_of_memory e) {
::CoTaskMemFree(tmp);
tmp = nullptr;
mpt::rethrow_out_of_memory(e);
}
::CoTaskMemFree(tmp);
tmp = nullptr;
return mpt::transcode<mpt::winstring>(str);
}
inline CLSID StringToCLSID(const mpt::winstring & str_) {
const std::wstring str = mpt::transcode<std::wstring>(str_);
CLSID clsid = CLSID();
std::vector<OLECHAR> tmp(str.c_str(), str.c_str() + str.length() + 1);
switch (::CLSIDFromString(tmp.data(), &clsid)) {
case NOERROR:
// nothing
break;
case E_INVALIDARG:
clsid = CLSID();
break;
case CO_E_CLASSSTRING:
clsid = CLSID();
break;
case REGDB_E_CLASSNOTREG:
clsid = CLSID();
break;
case REGDB_E_READREGDB:
clsid = CLSID();
throw std::runtime_error("CLSIDFromString() failed: REGDB_E_READREGDB.");
break;
default:
clsid = CLSID();
throw std::logic_error("CLSIDFromString() failed.");
break;
}
return clsid;
}
inline bool VerifyStringToCLSID(const mpt::winstring & str_, CLSID & clsid) {
const std::wstring str = mpt::transcode<std::wstring>(str_);
bool result = false;
clsid = CLSID();
std::vector<OLECHAR> tmp(str.c_str(), str.c_str() + str.length() + 1);
switch (::CLSIDFromString(tmp.data(), &clsid)) {
case NOERROR:
result = true;
break;
case E_INVALIDARG:
result = false;
break;
case CO_E_CLASSSTRING:
result = false;
break;
case REGDB_E_CLASSNOTREG:
result = false;
break;
case REGDB_E_READREGDB:
throw std::runtime_error("CLSIDFromString() failed: REGDB_E_READREGDB.");
break;
default:
throw std::logic_error("CLSIDFromString() failed.");
break;
}
return result;
}
inline bool IsCLSID(const mpt::winstring & str_) {
const std::wstring str = mpt::transcode<std::wstring>(str_);
bool result = false;
CLSID clsid = CLSID();
std::vector<OLECHAR> tmp(str.c_str(), str.c_str() + str.length() + 1);
switch (::CLSIDFromString(tmp.data(), &clsid)) {
case NOERROR:
result = true;
break;
case E_INVALIDARG:
result = false;
break;
case CO_E_CLASSSTRING:
result = false;
break;
case REGDB_E_CLASSNOTREG:
result = false;
break;
case REGDB_E_READREGDB:
result = false;
throw std::runtime_error("CLSIDFromString() failed: REGDB_E_READREGDB.");
break;
default:
result = false;
throw std::logic_error("CLSIDFromString() failed.");
break;
}
return result;
}
// COM IID<->string conversion
inline IID StringToIID(const mpt::winstring & str_) {
const std::wstring str = mpt::transcode<std::wstring>(str_);
IID iid = IID();
std::vector<OLECHAR> tmp(str.c_str(), str.c_str() + str.length() + 1);
switch (::IIDFromString(tmp.data(), &iid)) {
case S_OK:
// nothing
break;
case E_OUTOFMEMORY:
iid = IID();
mpt::throw_out_of_memory();
break;
case E_INVALIDARG:
iid = IID();
break;
default:
iid = IID();
throw std::logic_error("IIDFromString() failed.");
break;
}
return iid;
}
inline mpt::winstring IIDToString(IID iid) {
std::wstring str;
LPOLESTR tmp = nullptr;
switch (::StringFromIID(iid, &tmp)) {
case S_OK:
break;
case E_OUTOFMEMORY:
if (tmp) {
::CoTaskMemFree(tmp);
tmp = nullptr;
}
mpt::throw_out_of_memory();
break;
default:
if (tmp) {
::CoTaskMemFree(tmp);
tmp = nullptr;
}
throw std::logic_error("StringFromIID() failed.");
break;
}
if (!tmp) {
throw std::logic_error("StringFromIID() failed.");
}
try {
str = tmp;
} catch (mpt::out_of_memory e) {
::CoTaskMemFree(tmp);
tmp = nullptr;
mpt::rethrow_out_of_memory(e);
}
return mpt::transcode<mpt::winstring>(str);
}
// General GUID<->string conversion.
// The string must/will be in standard GUID format: {4F9A455D-E7EF-4367-B2F0-0C83A38A5C72}
inline GUID StringToGUID(const mpt::winstring & str) {
return StringToIID(str);
}
inline mpt::winstring GUIDToString(GUID guid) {
std::vector<OLECHAR> tmp(256);
if (::StringFromGUID2(guid, tmp.data(), static_cast<int>(tmp.size())) <= 0) {
throw std::logic_error("StringFromGUID2() failed.");
}
return mpt::transcode<mpt::winstring>(tmp.data());
}
// Create a COM GUID
inline GUID CreateGUID() {
GUID guid = GUID();
switch (::CoCreateGuid(&guid)) {
case S_OK:
// nothing
break;
default:
guid = GUID();
throw std::runtime_error("CoCreateGuid() failed.");
}
return guid;
}
// Checks the UUID against the NULL UUID. Returns false if it is NULL, true otherwise.
inline bool IsValid(::UUID uuid) {
return false
|| uuid.Data1 != 0
|| uuid.Data2 != 0
|| uuid.Data3 != 0
|| uuid.Data4[0] != 0
|| uuid.Data4[1] != 0
|| uuid.Data4[2] != 0
|| uuid.Data4[3] != 0
|| uuid.Data4[4] != 0
|| uuid.Data4[5] != 0
|| uuid.Data4[6] != 0
|| uuid.Data4[7] != 0;
}
#endif // MPT_OS_WINDOWS
} // namespace MPT_INLINE_NS
} // namespace mpt
#endif // MPT_UUID_GUID_HPP
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