VC中实现历史记录的全面清除

最新推荐文章于 2024-10-15 08:54:12 发布

优途科技

最新推荐文章于 2024-10-15 08:54:12 发布

阅读量4.7k

点赞数

文章标签： descriptor user null path buffer security

本文介绍了一个实用工具，能够批量清除浏览器缓存、Cookies、历史记录等上网痕迹，保护用户隐私。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

前言:

在本人用完计算机之后，往往不希望别人发现你做过什么，和浏览过什么网址。（特别是和多人共用一台机子时）。当然，你可以手工清理那些记录。但那是多么繁杂的一件事啊。我想没人愿意那样做。于是，我想到用一个软件来一次性完成上述工作。

清除历史记录的文章很多，但是一般都不够全面。本人经过整理和收集一些资料，加以融合。得到了一个较全面的历史记录清除方法。

在这里要指出代码能完成，要特别感谢朋友 xzhang

左图便是本文例子程序的运行效果图，我们可以从中看到该例子具体能实现的清除内容。

下载源代码大小:17K

下面我们通过代码看看具体是如何实现的。

首先: 在 stdafx.h中要加入： #include "atlbase.h"
设置->Link 要引入库 : Wininet.lib shlwapi.lib

//在对话框的头文件中加入：

#include "wininet.h"
#include "UrlHist.h"

#define SWEEP_BUFFER_SIZE 10000

public:

enum DEL_CACHE_TYPE //要删除的类型。
{
File,//表示internet临时文件
Cookie //表示Cookie
};

//以下为一些辅助函数 ( 辅助函数的具体实现参见源代码中.限于篇幅不再给出 )

BOOL DeleteUrlCache(DEL_CACHE_TYPE type);
BOOL EmptyDirectory(LPCTSTR szPath, BOOL bDeleteDesktopIni = FALSE, BOOL bWipeIndexDat = FALSE);//清空一个目录
BOOL IsWindowsNT();//判断系统
BOOL IsWindows2k();
BOOL GetUserSid(PSID* ppSid);
void GetSidString(PSID pSid, LPTSTR szBuffer);
BOOL GetOldSD(HKEY hKey, LPCTSTR pszSubKey, BYTE** pSD);
BOOL CreateNewSD(PSID pSid, SECURITY_DESCRIPTOR* pSD, PACL* ppDacl);
BOOL RegSetPrivilege(HKEY hKey, LPCTSTR pszSubKey, SECURITY_DESCRIPTOR* pSD, BOOL bRecursive);
BOOL WipeFile(LPCTSTR szDir, LPCTSTR szFile);

//现在我们可以分别实现每项清除功能。

1、清除IE临时文件

TCHAR szPath[MAX_PATH];
DeleteUrlCache(File);
if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_INTERNET_CACHE, FALSE))
{ //得到临时目录，并清空它.
EmptyDirectory(szPath);
}

清除IE临时文件的另外一个途径是直接调用Wininet函数，请看下面用于清除IE临时文件的函数

BOOL DelTempFiles() 
{
    BOOL bResult = FALSE;
    BOOL bDone = FALSE;
    LPINTERNET_CACHE_ENTRY_INFO lpCacheEntry = NULL;  
 
    DWORD  dwTrySize, dwEntrySize = 4096; // start buffer size    
    HANDLE hCacheDir = NULL;    
    DWORD  dwError = ERROR_INSUFFICIENT_BUFFER;
    
    do 
    {                               
        switch (dwError)
        {
            // need a bigger buffer
            case ERROR_INSUFFICIENT_BUFFER: 
                delete [] lpCacheEntry;            
                lpCacheEntry = (LPINTERNET_CACHE_ENTRY_INFO) new char[dwEntrySize];
                lpCacheEntry->dwStructSize = dwEntrySize;
                dwTrySize = dwEntrySize;
                BOOL bSuccess;
                if (hCacheDir == NULL)                
                  
                    bSuccess = (hCacheDir 
                      = FindFirstUrlCacheEntry(NULL, lpCacheEntry,
                      &dwTrySize)) != NULL;
                else
                    bSuccess = FindNextUrlCacheEntry(hCacheDir, lpCacheEntry, &dwTrySize);

                if (bSuccess)
                    dwError = ERROR_SUCCESS;    
                else
                {
                    dwError = GetLastError();
                    dwEntrySize = dwTrySize; // use new size returned
                }
                break;

             // we are done
            case ERROR_NO_MORE_ITEMS:
                bDone = TRUE;
                bResult = TRUE;                
                break;

             // we have got an entry
            case ERROR_SUCCESS:                       
        
                // don''''''''''''''''t delete cookie entry
                if (!(lpCacheEntry->CacheEntryType & COOKIE_CACHE_ENTRY))                
                   
                 DeleteUrlCacheEntry(lpCacheEntry->lpszSourceUrlName);
                    
                // get ready for next entry
                dwTrySize = dwEntrySize;
                if (FindNextUrlCacheEntry(hCacheDir, lpCacheEntry, &dwTrySize))
                    dwError = ERROR_SUCCESS;          
     
                else
                {
                    dwError = GetLastError();
                    dwEntrySize = dwTrySize; // use new size returned
                }                    
                break;

            // unknown error
            default:
                bDone = TRUE;                
                break;
        }

        if (bDone)
        {   
            delete [] lpCacheEntry; 
            if (hCacheDir)
                FindCloseUrlCache(hCacheDir);         
                                  
        }
    } while (!bDone);
    return bResult;
}

2、Cookie的清除

TCHAR szPath[MAX_PATH];
DeleteUrlCache(Cookie);
if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_COOKIES, FALSE))
{//得到目录，并清空
     EmptyDirectory(szPath);
}

3、浏览器地址栏历史地址的清除

SHDeleteKey(HKEY_CURRENT_USER,
   _T("Software//Microsoft//Internet Explorer//TypedURLs"));

4、清除表单自动完成历史记录

CString sKey;
DWORD dwRet;

if (IsWindows2k() || IsWindowsNT())//先判断系统
{
CString sBaseKey;
SECURITY_DESCRIPTOR NewSD;
BYTE* pOldSD;
PACL pDacl = NULL;
PSID pSid = NULL;
TCHAR szSid[256];
if (GetUserSid(&pSid))
{
//get the hiden key name
GetSidString(pSid, szSid);

sKey = _T("Software//Microsoft//Protected Storage System Provider//");
sKey += szSid;

//get old SD
sBaseKey = sKey;
GetOldSD(HKEY_CURRENT_USER, sBaseKey, &pOldSD);

//set new SD and then clear
if (CreateNewSD(pSid, &NewSD, &pDacl))
{
RegSetPrivilege(HKEY_CURRENT_USER, sKey, &NewSD, FALSE);

sKey += _T("//Data");
RegSetPrivilege(HKEY_CURRENT_USER, sKey, &NewSD, FALSE);

sKey += _T("//e161255a-37c3-11d2-bcaa-00c04fd929db");
RegSetPrivilege(HKEY_CURRENT_USER, sKey, &NewSD, TRUE);

dwRet = SHDeleteKey(HKEY_CURRENT_USER, sKey);
}

if (pDacl != NULL)
HeapFree(GetProcessHeap(), 0, pDacl);

//restore old SD
if (pOldSD)
{
RegSetPrivilege(HKEY_CURRENT_USER, sBaseKey, 
(SECURITY_DESCRIPTOR*)pOldSD, FALSE);
delete pOldSD;
}
}
if (pSid)
HeapFree(GetProcessHeap(), 0, pSid);
}

//win9x
DWORD dwSize = MAX_PATH;
TCHAR szUserName[MAX_PATH];
GetUserName(szUserName, &dwSize);

sKey = _T("Software//Microsoft//Protected Storage System Provider//");
sKey += szUserName;
sKey += _T("//Data//e161255a-37c3-11d2-bcaa-00c04fd929db");
dwRet = SHDeleteKey(HKEY_LOCAL_MACHINE, sKey);

5、清除自动密码历史记录

SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Internet Explorer//IntelliForms"));

6、清收藏夹中的内容
TCHAR szPath[MAX_PATH];
if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_FAVORITES, FALSE))
{ //得到目录，并清空
EmptyDirectory(szPath);
}

7、清RAS自动拨号历史记录

SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//RAS Autodial//Addresses"));

8、清系统临时文件夹

TCHAR szPath[MAX_PATH];
if (GetTempPath(MAX_PATH, szPath))//得到系统临时目录
{
    EmptyDirectory(szPath, TRUE);
}

9、清空回收站

SHEmptyRecycleBin(NULL, NULL, 

        SHERB_NOCONFIRMATION | SHERB_NOPROGRESSUI | SHERB_NOSOUND);

10、清除"运行"中的自动匹配历史记录

SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Windows//CurrentVersion//Explorer//RunMRU"));

11、清"文档"中的历史记录

TCHAR szPath[MAX_PATH];
if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_RECENT, FALSE))
{
    EmptyDirectory(szPath);
}
    SHDeleteKey(HKEY_CURRENT_USER,
_T("Software//Microsoft//Windows//CurrentVersion//Explorer//RecentDocs"));

12、清除上次登陆用户记录

SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Windows NT//CurrentVersion//Winlogon"),
        _T("DefaultUserName"));
SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Windows NT//CurrentVersion//Winlogon"),
        _T("AltDefaultUserName"));
SHDeleteValue(HKEY_LOCAL_MACHINE,
        _T("Software//Microsoft//Windows//CurrentVersion//Winlogon"),
        _T("DefaultUserName"));

13、清除"查找文件"自动匹配历史记录

SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Windows//CurrentVersion//Explorer//Doc Find Spec 
        MRU"));
SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Internet Explorer//Explorer Bars//{C4EE31F3-4768-11D2-BE5C-00A0C9A83DA1}//ContainingTextMRU"));
SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Internet Explorer//Explorer Bars//{C4EE31F3-4768-11D2-BE5C-00A0C9A83DA1}//FilesNamedMRU"));

14、清除"查找计算机"自动匹配历史记录

SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Windows//CurrentVersion//Explorer//FindComputerMRU"));
SHDeleteKey(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Internet Explorer//Explorer Bars//{C4EE31F3-4768-11D2-BE5C-00A0C9A83DA1}//ComputerNameMRU"));

15、清除网络联接历史记录

TCHAR szPath[MAX_PATH];
if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_NETHOOD, FALSE))
{ //得到目录，并清空
     EmptyDirectory(szPath);
}

16、清远程登录历史记录

CString sKey;
for (int i=1; i<=8; i++)
{
        sKey.Format(_T("Machine%d"), i);
        SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Telnet"), sKey);

        sKey.Format(_T("Service%d"), i);
        SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Telnet"), sKey);

        sKey.Format(_T("TermType%d"), i);
        SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Telnet"), sKey);
}
SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Telnet"), _T("LastMachine"));
SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Telnet"), _T("LastService"));
SHDeleteValue(HKEY_CURRENT_USER,
        _T("Software//Microsoft//Telnet"), _T("LastTermType"));

17、清浏览网址历史记录
下面这个函数可以用于清除网址历史记录

#include "SHLGUID.H"
HRESULT ClearHistory() 
{
	HRESULT hr;
	CoInitialize(NULL);
	{
    IUrlHistoryStg2* pUrlHistoryStg2 = NULL;
     hr= CoCreateInstance(CLSID_CUrlHistory,NULL,1, IID_IUrlHistoryStg2,(void**)&pUrlHistoryStg2);
    if (SUCCEEDED(hr))
    {         
        hr = pUrlHistoryStg2->ClearHistory(); 
        pUrlHistoryStg2->Release();
    }
	}
	CoUninitialize();
    return hr;
}

// 如果上面代码不能清
// 则有下面的，不完美，但能工作.

TCHAR szPath[MAX_PATH];
GetWindowsDirectory(szPath, MAX_PATH);
_tcscat(szPath, _T("//History"));
EmptyDirectory(szPath, FALSE, TRUE);
        
if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_HISTORY, FALSE))
{
    EmptyDirectory(szPath, FALSE, TRUE);
}

好了，一个简单的清除历史程序就写完了，具体细节可以分析作者提供的源代码.