364 lines
9.6 KiB
C++
364 lines
9.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// MuldeR's Utilities for Qt
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// Copyright (C) 2004-2015 LoRd_MuldeR <MuldeR2@GMX.de>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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// http://www.gnu.org/licenses/lgpl-2.1.txt
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//////////////////////////////////////////////////////////////////////////////////
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#pragma once
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//MUtils
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#include <MUtils/Registry.h>
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#include <MUtils/Exception.h>
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//Qt
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#include <QStringList>
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//Win32
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#define WIN32_LEAN_AND_MEAN
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#include <Windows.h>
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#include <Shlwapi.h>
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///////////////////////////////////////////////////////////////////////////////
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// INTERNAL FUNCTIONS
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///////////////////////////////////////////////////////////////////////////////
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#define ENUM2STR(X,Y) do \
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{ \
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static const char *_name = #Y; \
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if((X) == (Y)) return _name; \
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} \
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while(0)
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namespace MUtils
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{
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namespace Registry
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{
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static HKEY registry_root(const reg_root_t &rootKey)
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{
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switch(rootKey)
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{
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case root_classes: return HKEY_CLASSES_ROOT; break;
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case root_user: return HKEY_CURRENT_USER; break;
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case root_machine: return HKEY_LOCAL_MACHINE; break;
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default: MUTILS_THROW("Unknown root reg value was specified!");
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}
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}
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static DWORD registry_access(const reg_access_t &access)
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{
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switch(access)
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{
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case access_readonly: return KEY_READ; break;
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case access_writeonly: return KEY_WRITE; break;
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case access_readwrite: return KEY_READ | KEY_WRITE; break;
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case access_enumerate: return KEY_ENUMERATE_SUB_KEYS; break;
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default: MUTILS_THROW("Unknown access value was specified!");
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}
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}
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static const char* reg_root2str(const reg_root_t &rootKey)
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{
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ENUM2STR(rootKey, root_classes);
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ENUM2STR(rootKey, root_user);
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ENUM2STR(rootKey, root_machine);
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static const char *unknown = "<unknown>";
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return unknown;
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}
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static const char* reg_access2str(const reg_access_t &access)
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{
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ENUM2STR(access, access_readonly);
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ENUM2STR(access, access_writeonly);
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ENUM2STR(access, access_readwrite);
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ENUM2STR(access, access_enumerate);
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static const char *unknown = "<unknown>";
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return unknown;
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// RegistryKeyPrivate Key Class
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///////////////////////////////////////////////////////////////////////////////
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namespace MUtils
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{
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namespace Registry
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{
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namespace Internal
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{
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class RegistryKeyPrivate
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{
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friend class MUtils::Registry::RegistryKey;
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private:
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HKEY m_hKey;
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DWORD m_access;
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bool m_isOpen;
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};
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}
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}
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}
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#define CHECK_STATUS(X) do \
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{ \
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if(!p->m_isOpen) \
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{ \
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MUTILS_THROW("Cannot read from or write to a key is not currently open!"); \
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} \
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if(!(p->m_access & (X))) \
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{ \
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MUTILS_THROW("This operation is not support with current access rights!"); \
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} \
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} \
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while(0)
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///////////////////////////////////////////////////////////////////////////////
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// Registry Key Class
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///////////////////////////////////////////////////////////////////////////////
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MUtils::Registry::RegistryKey::RegistryKey(const reg_root_t &rootKey, const QString &keyName, const reg_access_t &access)
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:
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p(new Internal::RegistryKeyPrivate())
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{
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p->m_hKey = NULL;
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p->m_access = registry_access(access);
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p->m_isOpen = false;
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p->m_isOpen = (RegCreateKeyEx(registry_root(rootKey), MUTILS_WCHR(keyName), 0, NULL, 0, p->m_access, NULL, &p->m_hKey, NULL) == ERROR_SUCCESS);
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if(!p->m_isOpen)
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{
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qWarning("Failed to open registry key \"%s\"! (rootKey: %s, access: %s)", MUTILS_UTF8(keyName), reg_root2str(rootKey), reg_access2str(access));
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}
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}
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MUtils::Registry::RegistryKey::~RegistryKey(void)
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{
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if(p->m_isOpen)
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{
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CloseHandle(p->m_hKey);
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p->m_hKey = NULL;
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p->m_isOpen = false;
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}
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delete p;
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}
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inline bool MUtils::Registry::RegistryKey::isOpen(void)
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{
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return p->m_isOpen;
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}
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bool MUtils::Registry::RegistryKey::value_write(const QString &valueName, const quint32 &value)
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{
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CHECK_STATUS(KEY_WRITE);
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return (RegSetValueEx(p->m_hKey, valueName.isEmpty() ? NULL : MUTILS_WCHR(valueName), 0, REG_DWORD, reinterpret_cast<const BYTE*>(&value), sizeof(quint32)) == ERROR_SUCCESS);
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}
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bool MUtils::Registry::RegistryKey::value_write(const QString &valueName, const QString &value)
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{
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CHECK_STATUS(KEY_WRITE);
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return (RegSetValueEx(p->m_hKey, valueName.isEmpty() ? NULL : MUTILS_WCHR(valueName), 0, REG_SZ, reinterpret_cast<const BYTE*>(value.utf16()), (value.length() + 1) * sizeof(wchar_t)) == ERROR_SUCCESS);
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}
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bool MUtils::Registry::RegistryKey::value_read(const QString &valueName, quint32 &value) const
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{
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value = 0;
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DWORD size = sizeof(quint32), type = -1;
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CHECK_STATUS(KEY_READ);
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return (RegQueryValueEx(p->m_hKey, valueName.isEmpty() ? NULL : MUTILS_WCHR(valueName), 0, &type, reinterpret_cast<BYTE*>(&value), &size) == ERROR_SUCCESS) && (type == REG_DWORD);
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}
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bool MUtils::Registry::RegistryKey::value_read(const QString &valueName, QString &value) const
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{
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value = QString();
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wchar_t buffer[2048]; DWORD size = sizeof(wchar_t) * 2048, type = -1;
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CHECK_STATUS(KEY_READ);
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if((RegQueryValueEx(p->m_hKey, valueName.isEmpty() ? NULL : MUTILS_WCHR(valueName), 0, &type, reinterpret_cast<BYTE*>(&(buffer[0])), &size) == ERROR_SUCCESS) && ((type == REG_SZ) || (type == REG_EXPAND_SZ)))
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{
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value = QString::fromUtf16(reinterpret_cast<const ushort*>(buffer));
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return true;
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}
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return false;
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}
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bool MUtils::Registry::RegistryKey::enum_values(QStringList &list) const
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{
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wchar_t buffer[2048];
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list.clear();
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CHECK_STATUS(KEY_QUERY_VALUE);
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for(DWORD i = 0; i < UINT_MAX; i++)
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{
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DWORD size = 2048;
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const DWORD ret = RegEnumValue(p->m_hKey, i, buffer, &size, NULL, NULL, NULL, NULL);
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if(ret == ERROR_SUCCESS)
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{
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list << QString::fromUtf16(reinterpret_cast<const ushort*>(buffer));
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continue;
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}
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return (ret == ERROR_NO_MORE_ITEMS);
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}
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return false;
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}
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bool MUtils::Registry::RegistryKey::enum_subkeys(QStringList &list) const
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{
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wchar_t buffer[2048];
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list.clear();
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CHECK_STATUS(KEY_ENUMERATE_SUB_KEYS);
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for(DWORD i = 0; i < UINT_MAX; i++)
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{
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DWORD size = 2048;
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const DWORD ret = RegEnumKeyEx(p->m_hKey, i, buffer, &size, NULL, NULL, NULL, NULL);
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if(ret == ERROR_SUCCESS)
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{
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list << QString::fromUtf16(reinterpret_cast<const ushort*>(buffer));
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continue;
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}
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return (ret == ERROR_NO_MORE_ITEMS);
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}
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return false;
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}
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///////////////////////////////////////////////////////////////////////////////
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// HELPER FUNCTIONS
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///////////////////////////////////////////////////////////////////////////////
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/*
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* Write registry value
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*/
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bool MUtils::Registry::reg_value_write(const reg_root_t &rootKey, const QString &keyName, const QString &valueName, const quint32 &value)
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{
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bool success = false;
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RegistryKey regKey(rootKey, keyName, access_readwrite);
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if(regKey.isOpen())
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{
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success = regKey.value_write(valueName, value);
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}
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return success;
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}
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/*
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* Write registry value
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*/
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bool MUtils::Registry::reg_value_write(const reg_root_t &rootKey, const QString &keyName, const QString &valueName, const QString &value)
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{
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bool success = false;
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RegistryKey regKey(rootKey, keyName, access_readwrite);
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if(regKey.isOpen())
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{
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success = regKey.value_write(valueName, value);
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}
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return success;
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}
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/*
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* Read registry value
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*/
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bool MUtils::Registry::reg_value_read(const reg_root_t &rootKey, const QString &keyName, const QString &valueName, quint32 &value)
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{
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bool success = false;
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RegistryKey regKey(rootKey, keyName, access_readonly);
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if(regKey.isOpen())
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{
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success = regKey.value_read(valueName, value);
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}
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else
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{
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value = 0;
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}
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return success;
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}
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/*
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* Read registry value
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*/
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bool MUtils::Registry::reg_value_read(const reg_root_t &rootKey, const QString &keyName, const QString &valueName, QString &value)
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{
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bool success = false;
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RegistryKey regKey(rootKey, keyName, access_readonly);
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if(regKey.isOpen())
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{
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success = regKey.value_read(valueName, value);
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}
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else
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{
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value = QString();
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}
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return success;
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}
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/*
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* Enumerate value names
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*/
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bool MUtils::Registry::reg_enum_values(const reg_root_t &rootKey, const QString &keyName, QStringList &values)
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{
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bool success = false;
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RegistryKey regKey(rootKey, keyName, access_readonly);
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if(regKey.isOpen())
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{
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success = regKey.enum_values(values);
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}
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else
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{
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values.clear();
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}
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return success;
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}
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/*
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* Enumerate subkey names
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*/
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bool MUtils::Registry::reg_enum_subkeys(const reg_root_t &rootKey, const QString &keyName, QStringList &subkeys)
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{
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bool success = false;
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RegistryKey regKey(rootKey, keyName, access_enumerate);
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if(regKey.isOpen())
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{
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success = regKey.enum_subkeys(subkeys);
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}
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else
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{
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subkeys.clear();
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}
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return success;
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}
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/*
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* Check registry key existence
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*/
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bool MUtils::Registry::reg_key_exists(const reg_root_t &rootKey, const QString &keyName)
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{
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HKEY hKey = NULL;
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if(RegOpenKeyEx(registry_root(rootKey), MUTILS_WCHR(keyName), 0, STANDARD_RIGHTS_READ, &hKey) == ERROR_SUCCESS)
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{
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RegCloseKey(hKey);
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return true;
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}
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return false;
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}
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/*
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* Delete registry key
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*/
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bool MUtils::Registry::reg_key_delete(const reg_root_t &rootKey, const QString &keyName)
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{
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return (SHDeleteKey(registry_root(rootKey), MUTILS_WCHR(keyName)) == ERROR_SUCCESS);
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}
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