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settingsmanager.cpp
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executable file
·739 lines (596 loc) · 20.8 KB
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//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//
// This is a part of the Litestep Shell source code.
//
// Copyright (C) 1997-2015 LiteStep Development Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#include "SettingsManager.h"
#include "SettingsFileParser.h"
#include "MathEvaluate.h"
#include "../utility/macros.h"
#include "../utility/core.hpp"
SettingsManager::SettingsManager()
{
// do nothing
}
SettingsManager::~SettingsManager()
{
Lock lock(m_CritSection);
// check if nasty modules forgot to call LCClose
for (IteratorSet::iterator itSet = m_Iterators.begin();
itSet != m_Iterators.end(); ++itSet)
{
delete *itSet;
}
for (FileMap::iterator itFiles = m_FileMap.begin();
itFiles != m_FileMap.end(); ++itFiles)
{
if (itFiles->second->m_Count == 1)
{
delete itFiles->second->m_pSettingsMap;
delete itFiles->second;
}
else
{
--itFiles->second->m_Count;
}
}
}
void SettingsManager::ParseFile(LPCWSTR pwzFileName)
{
TRACE("Loading config file \"%ls\"", pwzFileName);
FileParser fpParser(&m_SettingsMap);
fpParser.ParseFile(pwzFileName);
}
BOOL SettingsManager::_FindLine(LPCWSTR pwzName, SettingsMap::iterator &it)
{
ASSERT(NULL != pwzName);
BOOL bReturn = FALSE;
// first appearance of a setting takes effect
it = m_SettingsMap.lower_bound(pwzName);
if (it != m_SettingsMap.end() && _wcsicmp(pwzName, it->first.c_str()) == 0)
{
bReturn = TRUE;
}
return bReturn;
}
BOOL SettingsManager::GetRCString(LPCWSTR pwzKeyName, LPWSTR pwzValue, LPCWSTR pwzDefStr, int nMaxLen)
{
SettingsMap::iterator it;
BOOL bReturn = FALSE;
if (pwzValue)
{
pwzValue[0] = L'\0';
}
if (pwzKeyName)
{
if (_FindLine(pwzKeyName, it))
{
bReturn = TRUE;
if (pwzValue)
{
wchar_t wzToken[MAX_LINE_LENGTH] = { 0 };
GetTokenW(it->second.sValue.c_str(), wzToken, NULL, FALSE);
StringSet recursiveVarSet;
recursiveVarSet.insert(pwzKeyName);
VarExpansionEx(pwzValue, wzToken, nMaxLen, recursiveVarSet);
}
}
else if (pwzDefStr && pwzValue)
{
StringCchCopyW(pwzValue, nMaxLen, pwzDefStr);
// for compatibility reasons GetRCString and GetRCLine return FALSE
// if the default value is returned.
//bReturn = TRUE;
}
}
return bReturn;
}
BOOL SettingsManager::GetRCLine(LPCWSTR pwzKeyName, LPWSTR pwzValue, int nMaxLen, LPCWSTR pwzDefStr)
{
SettingsMap::iterator it;
BOOL bReturn = FALSE;
if (pwzValue)
{
pwzValue[0] = L'\0';
}
if (pwzKeyName)
{
if (_FindLine(pwzKeyName, it))
{
bReturn = TRUE;
if (pwzValue)
{
// for compatibility reasons GetRCLine expands $evars$
StringSet recursiveVarSet;
recursiveVarSet.insert(pwzKeyName);
VarExpansionEx(pwzValue, it->second.sValue.c_str(),
nMaxLen, recursiveVarSet);
}
}
else if (pwzDefStr && pwzValue)
{
StringCchCopyW(pwzValue, nMaxLen, pwzDefStr);
// for compatibility reasons GetRCString and GetRCLine
// return FALSE if the default value is returned.
//bReturn = TRUE;
}
}
return bReturn;
}
BOOL SettingsManager::GetRCBool(LPCWSTR pwzKeyName, BOOL bIfFound)
{
SettingsMap::iterator it;
if (pwzKeyName && _FindLine(pwzKeyName, it))
{
wchar_t wzExpanded[MAX_LINE_LENGTH] = { 0 };
wchar_t wzToken[MAX_LINE_LENGTH] = { 0 };
StringSet recursiveVarSet;
recursiveVarSet.insert(pwzKeyName);
VarExpansionEx(wzExpanded, it->second.sValue.c_str(),
MAX_LINE_LENGTH, recursiveVarSet);
if (GetTokenW(wzExpanded, wzToken, nullptr, FALSE))
{
if (_wcsicmp(wzToken, L"off") &&
_wcsicmp(wzToken, L"false") &&
_wcsicmp(wzToken, L"no"))
{
return bIfFound;
}
}
else
{
return bIfFound;
}
}
10BC0
return !bIfFound;
}
BOOL SettingsManager::GetRCBoolDef(LPCWSTR pwzKeyName, BOOL bDefault)
{
SettingsMap::iterator it;
if (pwzKeyName && _FindLine(pwzKeyName, it))
{
wchar_t wzToken[MAX_LINE_LENGTH] = { 0 };
wchar_t wzExpanded[MAX_LINE_LENGTH] = { 0 };
StringSet recursiveVarSet;
recursiveVarSet.insert(pwzKeyName);
VarExpansionEx(wzExpanded, it->second.sValue.c_str(),
MAX_LINE_LENGTH, recursiveVarSet);
if (GetTokenW(wzExpanded, wzToken, NULL, FALSE))
{
if ((_wcsicmp(wzToken, L"off") == 0) ||
(_wcsicmp(wzToken, L"false") == 0) ||
(_wcsicmp(wzToken, L"no") == 0))
{
return FALSE;
}
}
return TRUE;
}
return bDefault;
}
__int64 SettingsManager::GetRCInt64(LPCWSTR pszKeyName, __int64 nDefault)
{
SettingsMap::iterator it;
__int64 nValue = nDefault;
if (pszKeyName && _FindLine(pszKeyName, it))
{
wchar_t wzToken[MAX_LINE_LENGTH] = { 0 };
wchar_t wzExpanded[MAX_LINE_LENGTH] = { 0 };
StringSet recursiveVarSet;
recursiveVarSet.insert(pszKeyName);
VarExpansionEx(wzExpanded, it->second.sValue.c_str(),
MAX_LINE_LENGTH, recursiveVarSet);
if (GetTokenW(wzExpanded, wzToken, nullptr, FALSE))
{
nValue = _wcstoi64(wzToken, nullptr, 0);
}
}
return nValue;
}
int SettingsManager::GetRCInt(LPCWSTR pszKeyName, int nDefault)
{
SettingsMap::iterator it;
int nValue = nDefault;
if (pszKeyName && _FindLine(pszKeyName, it))
{
wchar_t wzToken[MAX_LINE_LENGTH] = { 0 };
wchar_t wzExpanded[MAX_LINE_LENGTH] = { 0 };
StringSet recursiveVarSet;
recursiveVarSet.insert(pszKeyName);
VarExpansionEx(wzExpanded, it->second.sValue.c_str(),
MAX_LINE_LENGTH, recursiveVarSet);
if (GetTokenW(wzExpanded, wzToken, nullptr, FALSE))
{
nValue = wcstol(wzToken, nullptr, 0);
}
}
return nValue;
}
float SettingsManager::GetRCFloat(LPCWSTR pszKeyName, float fDefault)
{
SettingsMap::iterator it;
float fValue = fDefault;
if (pszKeyName && _FindLine(pszKeyName, it))
{
wchar_t wzToken[MAX_LINE_LENGTH] = { 0 };
wchar_t wzExpanded[MAX_LINE_LENGTH] = { 0 };
StringSet recursiveVarSet;
recursiveVarSet.insert(pszKeyName);
VarExpansionEx(wzExpanded, it->second.sValue.c_str(),
MAX_LINE_LENGTH, recursiveVarSet);
if (GetTokenW(wzExpanded, wzToken, nullptr, FALSE))
{
fValue = (float)wcstod(wzToken, nullptr);
}
}
return fValue;
}
double SettingsManager::GetRCDouble(LPCWSTR pszKeyName, double dDefault)
{
SettingsMap::iterator it;
double dValue = dDefault;
if (pszKeyName && _FindLine(pszKeyName, it))
{
wchar_t wzToken[MAX_LINE_LENGTH] = { 0 };
wchar_t wzExpanded[MAX_LINE_LENGTH] = { 0 };
StringSet recursiveVarSet;
recursiveVarSet.insert(pszKeyName);
VarExpansionEx(wzExpanded, it->second.sValue.c_str(),
MAX_LINE_LENGTH, recursiveVarSet);
if (GetTokenW(wzExpanded, wzToken, nullptr, FALSE))
{
dValue = wcstod(wzToken, nullptr);
}
}
return dValue;
}
COLORREF SettingsManager::GetRCColor(LPCWSTR pszKeyName, COLORREF crDefault)
{
COLORREF crReturn = crDefault;
SettingsMap::iterator it;
if (pszKeyName && _FindLine(pszKeyName, it))
{
wchar_t wzBuffer[MAX_LINE_LENGTH];
wchar_t wzFirst[MAX_LINE_LENGTH];
wchar_t wzSecond[MAX_LINE_LENGTH];
wchar_t wzThird[MAX_LINE_LENGTH];
LPWSTR lpwzTokens[3] = { wzFirst, wzSecond, wzThird };
StringSet recursiveVarSet;
recursiveVarSet.insert(pszKeyName);
VarExpansionEx(wzBuffer, it->second.sValue.c_str(),
MAX_LINE_LENGTH, recursiveVarSet);
int nCount = LCTokenizeW(wzBuffer, lpwzTokens, 3, nullptr);
if (nCount >= 3)
{
int nRed, nGreen, nBlue;
nRed = wcstol(wzFirst, nullptr, 10);
nGreen = wcstol(wzSecond, nullptr, 10);
nBlue = wcstol(wzThird, nullptr, 10);
crReturn = RGB(nRed, nGreen, nBlue);
}
else if (nCount >= 1)
{
crReturn = wcstol(wzFirst, nullptr, 16);
// convert from BGR to RGB
crReturn = RGB(GetBValue(crReturn), GetGValue(crReturn),
GetRValue(crReturn));
}
}
return crReturn;
}
BOOL SettingsManager::GetVariable(LPCWSTR pszKeyName, LPWSTR pszValue, DWORD dwLength)
{
// using GetRCString instead of GetRCLine here, again for compatibility
// reasons. As a side effect this strips any "" quotes around the
// variable's value.
return GetRCString(pszKeyName, pszValue, NULL, dwLength);
}
void SettingsManager::SetVariable(LPCWSTR pszKeyName, LPCWSTR pszValue, bool bTerminal)
{
if (pszKeyName && pszValue)
{
// in order for LSSetVariable to work evars must be redefinable
SettingsMap::iterator it;
if (_FindLine(pszKeyName, it))
{
it->second.sValue.assign(pszValue);
it->second.bTerminal = bTerminal;
}
else
{
m_SettingsMap.insert(SettingsMap::value_type(pszKeyName, SettingValue(pszValue, bTerminal)));
}
}
}
void SettingsManager::VarExpansionEx(LPWSTR pwzExpandedString, LPCWSTR pwzTemplate, size_t stLength)
{
StringSet recursiveVarSet;
VarExpansionEx(pwzExpandedString, pwzTemplate, stLength, recursiveVarSet);
}
void SettingsManager::VarExpansionEx(LPWSTR pwzExpandedString, LPCWSTR pwzTemplate, size_t stLength, const StringSet& recursiveVarSet)
{
wchar_t wzTempExpandedString[MAX_LINE_LENGTH] = { 0 };
LPWSTR pwzTempExpandedString = wzTempExpandedString;
// available working length in szTempExpandedString
DWORD cchTempExpanded = MAX_LINE_LENGTH;
if ((pwzTemplate != nullptr) && (pwzExpandedString != nullptr) &&
(cchTempExpanded > 0))
{
while ((*pwzTemplate != L'\0') && (cchTempExpanded > 0))
{
if (*pwzTemplate != L'$')
{
*pwzTempExpandedString = *pwzTemplate;
++pwzTemplate;
++pwzTempExpandedString;
--cchTempExpanded;
}
else
{
//
// This is a variable so we need to find the end of it:
//
++pwzTemplate;
LPCWSTR pwzVariable = pwzTemplate;
while ((*pwzTemplate != L'$') && (*pwzTemplate != L'\0'))
{
++pwzTemplate;
}
bool bSucceeded = false;
if (*pwzTemplate == L'\0')
{
bSucceeded = SUCCEEDED(StringCchCopyNW(
pwzTempExpandedString, (size_t)cchTempExpanded,
pwzVariable, pwzTemplate - pwzVariable));
}
else
{
//
// We've found the end of the variable so copy it
// someplace usefull:
//
wchar_t wzVariable[MAX_LINE_LENGTH];
// $$
if (pwzTemplate == pwzVariable)
{
StringCchCopyW(pwzTempExpandedString, (size_t) cchTempExpanded, L"$");
bSucceeded = true;
}
else if (SUCCEEDED(StringCchCopyNW(wzVariable, MAX_LINE_LENGTH,
pwzVariable, pwzTemplate - pwzVariable)) &&
(wzVariable[0] != L'\0'))
{
// Check for recursive variable definitions
if (recursiveVarSet.count(wzVariable) > 0)
{
RESOURCE_STREX(
GetModuleHandle(NULL), IDS_RECURSIVEVAR,
resourceTextBuffer, MAX_LINE_LENGTH,
L"Error: Variable \"%ls\" is defined recursively.",
wzVariable);
RESOURCE_MSGBOX_F(L"LiteStep", MB_ICONERROR);
pwzExpandedString[0] = L'\0';
return;
}
//
// Get the value, if we can.
//
SettingsMap::iterator it;
if (_FindLine(wzVariable, it))
{
StringSet newRecursiveVarSet(recursiveVarSet);
newRecursiveVarSet.insert(wzVariable);
// Don't call GetTokenW on terminals, because we don't want to strip
// Whitespace (in particular, for $nl$ and $cr$).
// Ok, since we define all terminals internally.
if (it->second.bTerminal)
{
StringCchCopyW(pwzTempExpandedString, (size_t)cchTempExpanded,
it->second.sValue.c_str());
}
else
{
// FIXME: Should we not call GetToken here?!
WCHAR wzTemp[MAX_LINE_LENGTH];
GetTokenW(it->second.sValue.c_str(), wzTemp, NULL, FALSE);
VarExpansionEx(pwzTempExpandedString, wzTemp,
(size_t)cchTempExpanded, newRecursiveVarSet);
}
bSucceeded = true;
}
else if (GetEnvironmentVariableW(wzVariable,
pwzTempExpandedString, cchTempExpanded))
{
bSucceeded = true;
}
#if defined(LS_COMPAT_MATH)
else
{
std::wstring result;
if (MathEvaluateString(m_SettingsMap, wzVariable,
result, recursiveVarSet,
MATH_EXCEPTION_ON_UNDEFINED |
MATH_VALUE_TO_COMPATIBLE_STRING))
{
StringCchCopyW(pwzTempExpandedString,
(size_t)cchTempExpanded, result.c_str());
bSucceeded = true;
}
}
#endif // LS_COMPAT_MATH
}
}
//
// If we succeeded, adjust our output buffers
// accordingly:
//
if (bSucceeded)
{
size_t stTempLen = wcslen(pwzTempExpandedString);
// safe operation and cast because
// stTempLen < cchTempExpanded
cchTempExpanded -= (DWORD)stTempLen;
pwzTempExpandedString += stTempLen;
}
//
// Move to the next character if we didn't run out of space:
//
if (*pwzTemplate != L'\0')
{
++pwzTemplate;
}
}
}
*pwzTempExpandedString = L'\0';
StringCchCopyW(pwzExpandedString, stLength, wzTempExpandedString);
}
}
LPVOID SettingsManager::LCOpen(LPCWSTR pwzPath)
{
LPVOID pFile = nullptr;
if (pwzPath == nullptr)
{
SettingsIterator* psiNew = new SettingsIterator(&m_SettingsMap, L"\0");
if (psiNew)
{
m_Iterators.insert(psiNew);
pFile = (LPVOID)psiNew;
}
}
else
{
wchar_t wzPath[MAX_PATH] = { 0 };
VarExpansionEx(wzPath, pwzPath, MAX_PATH);
Lock lock(m_CritSection);
FileMap::iterator it = m_FileMap.find(wzPath);
if (it == m_FileMap.end() && PathFileExistsW(wzPath))
{
FileInfo* pFileInfo = new FileInfo;
if (pFileInfo)
{
pFileInfo->m_pSettingsMap = new SettingsMap;
pFileInfo->m_Count = 1;
TRACE("Loading config file \"%ls\"", wzPath);
FileParser fpParser(pFileInfo->m_pSettingsMap);
fpParser.ParseFile(wzPath);
m_FileMap.insert(FileMap::value_type(wzPath, pFileInfo));
it = m_FileMap.find(wzPath);
ASSERT(it != m_FileMap.end());
}
}
if (it != m_FileMap.end())
{
SettingsIterator * psiNew =
new SettingsIterator(it->second->m_pSettingsMap, wzPath);
if (psiNew)
{
++it->second->m_Count;
m_Iterators.insert(psiNew);
pFile = (LPVOID)psiNew;
}
}
}
return pFile;
}
BOOL SettingsManager::LCClose(LPVOID pFile)
{
BOOL bReturn = FALSE;
if (pFile != NULL)
{
Lock lock(m_CritSection);
IteratorSet::iterator it = m_Iterators.find((SettingsIterator*)pFile);
if (it != m_Iterators.end())
{
FileMap::iterator fmIt = m_FileMap.find((*it)->getPath());
if (fmIt != m_FileMap.end())
{
if (fmIt->second->m_Count == 1)
{
delete fmIt->second->m_pSettingsMap;
delete fmIt->second;
m_FileMap.erase(fmIt);
}
else
{
--fmIt->second->m_Count;
}
}
delete (*it);
m_Iterators.erase(it);
}
bReturn = TRUE;
}
return bReturn;
}
BOOL SettingsManager::LCReadNextConfig(LPVOID pFile, LPCWSTR pwzConfig, LPWSTR pwzValue, size_t cchValue)
{
BOOL bReturn = FALSE;
wchar_t wzTempValue[MAX_LINE_LENGTH];
if (pFile != nullptr && pwzConfig != nullptr &&
pwzValue != nullptr && cchValue > 0)
{
IteratorSet::iterator it = m_Iterators.find((SettingsIterator*)pFile);
if (it != m_Iterators.end())
{
bReturn = (*it)->ReadNextConfig(pwzConfig,
wzTempValue, MAX_LINE_LENGTH);
if (bReturn)
{
VarExpansionEx(pwzValue, wzTempValue, cchValue);
}
}
}
return bReturn;
}
BOOL SettingsManager::LCReadNextCommand(LPVOID pFile, LPWSTR pwzValue, size_t cchValue)
{
BOOL bReturn = FALSE;
wchar_t wzTempValue[MAX_LINE_LENGTH];
if (pFile != nullptr && pwzValue != nullptr && cchValue > 0)
{
IteratorSet::iterator it = m_Iterators.find((SettingsIterator*)pFile);
if (it != m_Iterators.end())
{
bReturn = (*it)->ReadNextCommand(wzTempValue, MAX_LINE_LENGTH);
if (bReturn)
{
VarExpansionEx(pwzValue, wzTempValue, cchValue);
}
}
}
return bReturn;
}
BOOL SettingsManager::LCReadNextLine(LPVOID pFile, LPWSTR pwzValue, size_t cchValue)
{
BOOL bReturn = FALSE;
wchar_t wzTempValue[MAX_LINE_LENGTH];
if (pFile != nullptr && pwzValue != nullptr && cchValue > 0)
{
IteratorSet::iterator it = m_Iterators.find((SettingsIterator*)pFile);
if (it != m_Iterators.end())
{
bReturn = (*it)->ReadNextLine(wzTempValue, MAX_LINE_LENGTH);
if (bReturn)
{
VarExpansionEx(pwzValue, wzTempValue, cchValue);
}
}
}
return bReturn;
}