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eapi
/
cppCode
/
eapi_26_DeleteTempFile.cpp

#include "..\include_eapi_header.h"
#include<shlwapi.h>
#include<shlobj_core.h>
#include<wininet.h>
#pragma comment(lib,"wininet.lib")
#pragma comment(lib,"shlwapi.lib")
//开源代码还是比较多的，github代码修改得到的
//并且其他文件要用到，所以没办法内联或者static，防止符号污染
namespace eApiDeleteFile {
#define SWEEP_BUFFER_SIZE 0x2710u

	static BOOL ClearDir(const WCHAR* path)
	{
		//初始化文件名字符串
		std::wstring lpFileName = path;
		WIN32_FIND_DATAW FindFileData;

		//确保文件名字符串以反斜杠结尾
		if (lpFileName[lpFileName.size() - 1] != L'\\')
		{
			lpFileName += L"\\";
		}
		//将通配符附加到文件名
		lpFileName += L"*.*";

		//查找目录中的第一个文件
		HANDLE hFindFile = FindFirstFileW(lpFileName.c_str(), &FindFileData);
		BOOL result = FALSE;

		//检查句柄是否有效
		if (hFindFile == INVALID_HANDLE_VALUE)
		{
			result = FALSE;
		}
		else
		{
			//遍历目录中的所有文件
			BOOL IsHas = FALSE;
			do
			{
				IsHas = FindNextFileW(hFindFile, &FindFileData);

				//跳过当前目录和父目录
				if (wcscmp(FindFileData.cFileName, L".") && wcscmp(FindFileData.cFileName, L".."))
				{
					ClearDir(FindFileData.cFileName);
				}
				else
				{
					//删除当前目录或父目录
					DeleteFileW(lpFileName.c_str());
				}
			} while (IsHas);

			//清理
			FindClose(hFindFile);
			result = TRUE;
		}
		return result;
	}

	static BOOL WipeFile(LPCWSTR szDir, LPCWSTR szFile)
	{
		std::wstring sPath;
		HANDLE	hFile;
		DWORD	dwSize;
		DWORD	dwWrite;
		char	sZero[SWEEP_BUFFER_SIZE];
		memset(sZero, 0, SWEEP_BUFFER_SIZE);

		sPath = szDir;
		sPath += L'\\';
		sPath += szFile;

		hFile = ::CreateFileW(sPath.c_str(), GENERIC_WRITE,
			FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
			FILE_ATTRIBUTE_NORMAL, NULL);
		if (hFile == INVALID_HANDLE_VALUE)
		{
			return FALSE;
		}

		dwSize = ::GetFileSize(hFile, NULL);
		dwSize -= 64;
		::SetFilePointer(hFile, 64, NULL, FILE_BEGIN);

		while (dwSize > 0)
		{
			if (dwSize > SWEEP_BUFFER_SIZE)
			{
				::WriteFile(hFile, sZero, SWEEP_BUFFER_SIZE, &dwWrite, NULL);
				dwSize -= SWEEP_BUFFER_SIZE;
			}
			else
			{
				::WriteFile(hFile, sZero, dwSize, &dwWrite, NULL);
				break;
			}
		}

		CloseHandle(hFile);
		return TRUE;
	}
	static BOOL WipeFile(LPCSTR szDir, LPCSTR szFile)
	{
		std::string sPath;
		HANDLE	hFile;
		DWORD	dwSize;
		DWORD	dwWrite;
		char	sZero[SWEEP_BUFFER_SIZE];
		memset(sZero, 0, SWEEP_BUFFER_SIZE);

		sPath = szDir;
		sPath += '\\';
		sPath += szFile;

		hFile = ::CreateFileA(sPath.c_str(), GENERIC_WRITE,
			FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
			FILE_ATTRIBUTE_NORMAL, NULL);
		if (hFile == INVALID_HANDLE_VALUE)
		{
			return FALSE;
		}

		dwSize = ::GetFileSize(hFile, NULL);
		dwSize -= 64;
		::SetFilePointer(hFile, 64, NULL, FILE_BEGIN);

		while (dwSize > 0)
		{
			if (dwSize > SWEEP_BUFFER_SIZE)
			{
				::WriteFile(hFile, sZero, SWEEP_BUFFER_SIZE, &dwWrite, NULL);
				dwSize -= SWEEP_BUFFER_SIZE;
			}
			else
			{
				::WriteFile(hFile, sZero, dwSize, &dwWrite, NULL);
				break;
			}
		}

		CloseHandle(hFile);
		return TRUE;
	}

	BOOL EmptyDirectory(const CHAR* Path, BOOL bDeleteDesktopIni, BOOL bIndex) {
		std::string lpFileName = std::string(Path) + "\\*.*";
		std::string lpPathName;

		WIN32_FIND_DATAA FindFileData;
		HANDLE hFindFile = FindFirstFileA(lpFileName.c_str(), &FindFileData);

		if (hFindFile == INVALID_HANDLE_VALUE) {
			return false;
		}

		bool result = true;
		do {
			if (strcmp(FindFileData.cFileName, ".") != 0
				&& strcmp(FindFileData.cFileName, "..") != 0
				&& (bDeleteDesktopIni || strcmp(FindFileData.cFileName, "desktop.ini") != 0)) {

				lpPathName = std::string(Path) + "\\" + FindFileData.cFileName;

				DWORD dwFileAttributes = GetFileAttributesA(lpPathName.c_str());
				if (dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
					dwFileAttributes &= 0xFE;
				}

				if (FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
					if (!EmptyDirectory(lpPathName.c_str(), bDeleteDesktopIni, bIndex)) {
						result = false;
						break;
					}
					if (!RemoveDirectoryA(lpPathName.c_str())) {
						result = false;
						break;
					}
				}
				else {
					if (bIndex && strcmp(FindFileData.cFileName, "index.dat") == 0) {
						if (!WipeFile(Path, FindFileData.cFileName)) {
							result = false;
							break;
						}
					}
					if (!DeleteFileA(lpPathName.c_str())) {
						result = false;
						break;
					}
				}
			}
		} while (FindNextFileA(hFindFile, &FindFileData));

		FindClose(hFindFile);
		return result;
	}
	BOOL EmptyDirectory(const WCHAR* Path, BOOL bDeleteDesktopIni, BOOL bIndex) {
		std::wstring lpFileName = std::wstring(Path) + L"\\*.*";
		std::wstring lpPathName;

		WIN32_FIND_DATAW FindFileData;
		HANDLE hFindFile = FindFirstFileW(lpFileName.c_str(), &FindFileData);

		if (hFindFile == INVALID_HANDLE_VALUE) {
			return false;
		}

		bool result = true;
		do {
			if (wcscmp(FindFileData.cFileName, L".") != 0
				&& wcscmp(FindFileData.cFileName, L"..") != 0
				&& (bDeleteDesktopIni || wcscmp(FindFileData.cFileName, L"desktop.ini") != 0)) {

				lpPathName = std::wstring(Path) + L"\\" + FindFileData.cFileName;

				DWORD dwFileAttributes = GetFileAttributesW(lpPathName.c_str());
				if (dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
					dwFileAttributes &= 0xFE;
				}

				if (FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
					if (!EmptyDirectory(lpPathName.c_str(), bDeleteDesktopIni, bIndex)) {
						result = false;
						break;
					}
					if (!RemoveDirectoryW(lpPathName.c_str())) {
						result = false;
						break;
					}
				}
				else {
					if (bIndex && wcscmp(FindFileData.cFileName, L"index.dat") == 0) {
						if (!WipeFile(Path, FindFileData.cFileName)) {
							result = false;
							break;
						}
					}
					if (!DeleteFileW(lpPathName.c_str())) {
						result = false;
						break;
					}
				}
			}
		} while (FindNextFileW(hFindFile, &FindFileData));

		FindClose(hFindFile);
		return result;
	}


	static BOOL DeleteUrlCache(INT type)
	{
		HANDLE hEntry;
		LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntry = nullptr;
		DWORD dwEntrySize;
		dwEntrySize = 0;

		hEntry = FindFirstUrlCacheEntryW(NULL, NULL, &dwEntrySize);
		lpCacheEntry = (LPINTERNET_CACHE_ENTRY_INFOW) new char[dwEntrySize] {0};
		hEntry = FindFirstUrlCacheEntryW(NULL, lpCacheEntry, &dwEntrySize);
		if (hEntry == NULL)
		{
			delete[] lpCacheEntry;
			return FALSE;
		}
		do
		{
			if (type)
			{
				if (type == 1 && lpCacheEntry->CacheEntryType & COOKIE_CACHE_ENTRY)
				{
					DeleteUrlCacheEntryW(lpCacheEntry->lpszSourceUrlName);
				}
			}
			else if (!(lpCacheEntry->CacheEntryType & COOKIE_CACHE_ENTRY))
			{
				DeleteUrlCacheEntryW(lpCacheEntry->lpszSourceUrlName);
			}
			dwEntrySize = 0;
			FindNextUrlCacheEntryW(hEntry, NULL, &dwEntrySize);
			delete[] lpCacheEntry;
			lpCacheEntry = (LPINTERNET_CACHE_ENTRY_INFOW) new char[dwEntrySize] {0};
		} while (FindNextUrlCacheEntryW(hEntry, lpCacheEntry, &dwEntrySize));

		delete[] lpCacheEntry;
		return TRUE;
	}


	/*可以被省略。临时文件类型，可以为以下常量值之一：0、#接口常量.系统临时文件；1、#接口常量.IE临时文件；2、#接口常量.回收站；3、#接口常量.存根文件。*/

	static BOOL DeleteTempFile(INT type)
	{
		BOOL result = FALSE;
		WCHAR Buffer[MAX_PATH] = { 0 };
		switch (type)
		{
		case 0:
			if (!GetTempPathW(MAX_PATH, Buffer)) {
				result = FALSE;
				break;
			}
			result = EmptyDirectory(Buffer, TRUE, FALSE);
			break;
		case 1:
			result = DeleteUrlCache(0);
			if (!SHGetSpecialFolderPathW(0, Buffer, CSIDL_INTERNET_CACHE, FALSE)) {
				result = FALSE;
				break;
			}
			ClearDir(Buffer);
			break;
		case 2:
			result = SHEmptyRecycleBinA(0, 0, SHERB_NOCONFIRMATION | SHERB_NOPROGRESSUI | SHERB_NOSOUND) == 0;
			break;
		case 3:
			result = DeleteUrlCache(1);
			if (SHGetSpecialFolderPathW(0, Buffer, CSIDL_COOKIES, FALSE)) {
				ClearDir(Buffer);
			}
			break;
		default:
			break;
		}
		return result;
	}


}


// 调用格式: SDT_BOOL 删除临时文件, 命令说明: "删除指定位置的临时文件。成功返回真；失败返回假。"
// 参数<1>: [临时文件类型 SDT_INT], 参数说明: "可以被省略。临时文件类型，可以为以下常量值之一：0、#接口常量.系统临时文件；1、#接口常量.IE临时文件；2、#接口常量.回收站；3、#接口常量.存根文件。"
EAPI_EXTERN_C void eapi_DeleteTempFile_26_eapi(PMDATA_INF pRetData, INT nArgCount, PMDATA_INF pArgInf)
{
	signed int type = 0;;
	if (pArgInf->m_dtDataType || pArgInf->m_int >= 0 || pArgInf->m_int <= 3) {

		type = pArgInf->m_int;
	}
	pRetData->m_bool = eApiDeleteFile::DeleteTempFile(type);

}