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/**
* Copyright (c) 2013-2015, Christopher Jeffrey, Peter Sunde (MIT License)
* Copyright (c) 2016, Daniel Imms (MIT License).
* Copyright (c) 2018, Microsoft Corporation (MIT License).
*/
#include <nan.h>
#include <Shlwapi.h> // PathCombine
#include "path_util.h"
namespace path_util {
const wchar_t* to_wstring(const Nan::Utf8String& str) {
const char *bytes = *str;
unsigned int sizeOfStr = MultiByteToWideChar(CP_UTF8, 0, bytes, -1, NULL, 0);
wchar_t *output = new wchar_t[sizeOfStr];
MultiByteToWideChar(CP_UTF8, 0, bytes, -1, output, sizeOfStr);
return output;
}
bool file_exists(std::wstring filename) {
DWORD attr = ::GetFileAttributesW(filename.c_str());
if (attr == INVALID_FILE_ATTRIBUTES || (attr & FILE_ATTRIBUTE_DIRECTORY)) {
return false;
}
return true;
}
// cmd.exe -> C:\Windows\system32\cmd.exe
std::wstring get_shell_path(std::wstring filename) {
std::wstring shellpath;
if (file_exists(filename)) {
return shellpath;
}
wchar_t buffer_[MAX_ENV];
int read = ::GetEnvironmentVariableW(L"Path", buffer_, MAX_ENV);
if (!read) {
return shellpath;
}
std::wstring delimiter = L";";
size_t pos = 0;
std::vector<std::wstring> paths;
std::wstring buffer(buffer_);
while ((pos = buffer.find(delimiter)) != std::wstring::npos) {
paths.push_back(buffer.substr(0, pos));
buffer.erase(0, pos + delimiter.length());
}
const wchar_t *filename_ = filename.c_str();
for (int i = 0; i < paths.size(); ++i) {
std::wstring path = paths[i];
wchar_t searchPath[MAX_PATH];
::PathCombineW(searchPath, const_cast<wchar_t*>(path.c_str()), filename_);
if (searchPath == NULL) {
continue;
}
if (file_exists(searchPath)) {
shellpath = searchPath;
break;
}
}
return shellpath;
}
} // namespace path_util
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