VC显示网页验证码、模拟CSDN网页登录

这两天，本来想花点时间研究一下QQ空间、农场外挂，于是抓包分析一了下，只可惜，在QQ网页登录时进行了加密处理，可惜我对网页编程一窍不通。有些朋友曾讲过那些是通过JS代码进行加密，可惜我JS也是一片空白，真是“出师未杰身先死”，惭愧惭愧......

 

于是只好挑CSDN这类简易一些的尝试学习一下（仅供学习交流），下面是学习笔记：

 

程序运行截图：

 



 

1、本机环境：Windows XP SP3、ADSL

 

2、开发工具：WildPackets OmniPeek V5.1.4

                    Visual C++ 6.0

                    IE6.0

                    FlexEdit V2.3.1871

 

3、数据包截图：



 

(QQ登录时，在密码2222加密时卡壳了，我尝试过很多加密算法，最终以失败告终......)

 

 

4、验证码显示使用IStream和IPicture来显示：

/************************************************************************/
/* 函数说明：获取应用程序当前目录
/* 参    数：无
/* 返 回 值：返回目录路径、CString类型字符串
/* By:Koma   2009.10.13 11:23
/************************************************************************/
CString C***Dlg::GetExePath()
{
char pathbuf[260];
int  pathlen = ::GetModuleFileName(NULL,pathbuf,260);

// 替换掉单杠
while(TRUE)
{
if(pathbuf[pathlen--]=='//')
break;
}
pathbuf[++pathlen]=   0x0;
CString  fname = pathbuf;
return   fname;
}

 

/************************************************************************/
/* 函数说明：下载验证码图片
/* 参    数：无
/* 返 回 值：无
/* By:Koma   2009.10.13 11:50
/************************************************************************/
void C***Dlg::DownURLImage()
{
CInternetSession	session;
CString		strUrl;
CFile		*pFile,out;
char		buff[512];
CString		strPath;

// 产生八位随机数数组成验证码
int			nRand1 = rand()%100000+10000;
int			nRand2 = rand()%200000+10000;

strUrl.Format("http://passport.csdn.net/ShowExPwd.aspx?temp=%d%d",nRand1,nRand2);
strPath = GetExePath() + "//test.tmp";
pFile = session.OpenURL(strUrl);
out.Open(strPath, CFile::modeCreate | CFile::modeWrite);
while(pFile->Read(buff,512)){
out.Write(buff,512);
}
out.Flush();
out.Close();
}

 

/************************************************************************/
/* 函数说明：显示验证码图片
/* 参    数：无
/* 返 回 值：无
/* By:Koma   2009.10.13 13:12
/************************************************************************/
void C***Dlg::ShowImage()
{
::CoInitialize(NULL);			// 初始化COM
HRESULT	hr;
CFile	file;
CString	strPath;
CPaintDC dc(this);

strPath = GetExePath() + "//test.tmp";
file.Open(strPath, CFile::modeRead | CFile::shareDenyNone);

DWORD	dwSize = file.GetLength();
HGLOBAL hMem = ::GlobalAlloc( GMEM_MOVEABLE, dwSize );
LPVOID	lpBuf = ::GlobalLock( hMem );

file.ReadHuge( lpBuf, dwSize );
file.Close();
::GlobalUnlock( hMem );

// 由HGLOBAL得到IStream，参数TRUE 表示释放IStream的同时，释放内存
hr = ::CreateStreamOnHGlobal(hMem,TRUE,&pStream );
ASSERT(SUCCEEDED(hr));

hr = ::OleLoadPicture(pStream, dwSize, TRUE, IID_IPicture,(LPVOID *)&pPicture);
ASSERT(hr==S_OK);

long nWidth,nHeight;				// 宽高 MM_HIMETRIC模式，单位是0.01毫米
pPicture->get_Width( &nWidth );		// 宽
pPicture->get_Height( &nHeight );	// 高

CSize sz(nWidth,nHeight);			// 原大显示
dc.HIMETRICtoDP(&sz);				// 转换MM_HIMETRIC模式单位为MM_TEXT像素单位

pPicture->Render(dc.m_hDC,10,100,sz.cx,sz.cy,0,nHeight,nWidth,-nHeight,NULL);
CRect rect(10,100,sz.cx + 10,sz.cy + 100);

// 将图片区域保存，以便后面只刷新图片区域
m_PicRect = rect;
if(pPicture)						// 释放IPicture指针
pPicture->Release();
if(pStream)							// 释放IStream指针，同时释放hMem
pStream->Release();
::CoUninitialize();
}

 

5、经过OmniPeek抓包分析得到：

 

登录时POST格式：

__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%2FwEPDwULLTEyMzU0NzEzNDkPFgIeCkZpbmlzaFN0YXlnFgJmD2QWBAIBDxYCHgRUZXh0BQznlKjmiLfnmbvlvZVkAgIPZBYCAgMPZBYCAgEPFgIeB1Zpc2libGVoZBgBBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WAgUeY3RsMDAkQ1BIX0NvbnRlbnQkY2JfU2F2ZVN0YXRlBR1jdGwwMCRDUEhfQ29udGVudCRJbWFnZV9Mb2dpbjFp31Bt8XH%2B3e%2Bh97Uk6ofQQady&ctl00%24CPH_Content%24tb_LoginNameOrLoginEmail=testkoma&ctl00%24CPH_Content%24tb_Password=ningyusky&ctl00%24CPH_Content%24tb_ExPwd=BZTS3&ClientKey=c77f51c7-cbaf-427d-9314-a04303f79847&ctl00%24CPH_Content%24cb_SaveState=on&from=http%3A%2F%2Fhi.csdn.net%2F&MailParameters=&PrePage=&MailParameters=&ctl00%24CPH_Content%24Image_Login.x=33&ctl00%24CPH_Content%24Image_Login.y=13

 

至于其他动作的话，自己抓包分析吧！

 

之前看到博客园深蓝居一篇文章关于C#写的CSDN提交表单

http://www.cnblogs.com/studyzy/archive/2008/05/08/1187626.html

 

所以在前辈的基础上，我增加了VC获取Cookie ClientKey值，下面是POST代码：

 

void C***Dlg::OnBtnLogin()
{
// TODO: Add your control notification handler code here
UpdateData(TRUE);
if(m_strUser.IsEmpty())
{
MessageBox("用户名不能为空！","提示",MB_ICONERROR | MB_OK);
(CEdit*)GetDlgItem(IDC_EDIT_USER)->SetFocus();
return;
}
if( m_strPassword.IsEmpty())
{
MessageBox("密码不能为空！","提示",MB_ICONERROR | MB_OK);
(CEdit*)GetDlgItem(IDC_EDIT_PASSWORD)->SetFocus();
return;
}
CString	str;
try
{
CInternetSession Session ;
CHttpConnection *pHttpConnect = Session.GetHttpConnection("passport.csdn.net") ;
if( pHttpConnect )
{
CHttpFile* pFile = pHttpConnect->OpenRequest( CHttpConnection::HTTP_VERB_GET,
_T("/UserLogin.aspx"),
NULL,
1,
NULL,
NULL,
INTERNET_FLAG_NO_COOKIES );
// 获取COOKIE ClientKey值
CInternetSession	Session;
Session.OpenURL("http://passport.csdn.net/UserLogin.aspx");
if(!Session.GetCookie("http://passport.csdn.net/UserLogin.aspx",
_T("ClientKey"),m_strCookies))
{
MessageBox("获取Cookies时出错！");
return;
}
CString strKey	= m_strCookies;
int		result  = strKey.Find("ClientKey=",0);
m_strClientKey	= strKey.Mid(result+10);

UpdateData(TRUE);
CString szFormData = "__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%2FwEPDwULLTE4NDgzMDI2NjcPFgIeCkZpbmlzaFN0YXloFgJmD2QWBAIBDxYCHgRUZXh0BQznlKjmiLfnmbvlvZVkAgIPZBYCAgMPZBYCAgEPFgIeB1Zpc2libGVoZBgBBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WAgUeY3RsMDAkQ1BIX0NvbnRlbnQkY2JfU2F2ZVN0YXRlBR1jdGwwMCRDUEhfQ29udGVudCRJbWFnZV9Mb2dpbr5SL%2FGtMqVCJ%2FCh4jH%2FXp4DhlVU&ctl00%24CPH_Content%24tb_LoginNameOrLoginEmail="+ m_strUser +"&ctl00%24CPH_Content%24tb_Password="+ m_strPassword +"&ctl00%24CPH_Content%24tb_ExPwd="+ m_strCode +"&ClientKey="+ m_strClientKey +"&ctl00%24CPH_Content%24cb_SaveState=on&from=http%3A%2F%2Fhi.csdn.net%2Fmy.html&MailParameters=&MailParameters=&ctl00%24CPH_Content%24Image_Login.x=26&ctl00%24CPH_Content%24Image_Login.y=11";
if (pFile)
{
pFile->AddRequestHeaders("POST /UserLogin.aspx HTTP/1.1/r/n");
pFile->AddRequestHeaders("Accept:   image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/QVOD, application/QVOD, */*/r/n");
pFile->AddRequestHeaders("Referer:   http://passport.csdn.net/UserLogin.aspx/r/n"); pFile->AddRequestHeaders("Accept-Language:   zh-cn/r/n");
pFile->AddRequestHeaders("Content-Type:   application/x-www-form-urlencoded/r/n");
pFile->AddRequestHeaders("Accept-Encoding:   gzip, deflate/r/n");
pFile->AddRequestHeaders("User-Agent:   Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; POTU(RR:28031409:0:5513822); Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 2.0.50727; CIBA)/r/n");
pFile->AddRequestHeaders("Connection:   Keep-Alive/r/n");
pFile->AddRequestHeaders("Cache-Control:   no-cache/r/n");
pFile->AddRequestHeaders(szFormData);
pFile->SendRequest();

// 返回的HTML
CString s ;
while (pFile->ReadString(s))
str += s ;
//MessageBox(str);

pFile->Close();
delete pFile ;
}
CFile file;
file.Open("Test.aspx",CFile::modeCreate | CFile::modeWrite,NULL);
file.Write(str,str.GetLength());
file.Flush();
file.Close();

pHttpConnect->Close() ;
delete pHttpConnect ;
}
wchar_t*	pWChar = NULL;
DWORD		nLen1;

// 将新浪网页UTF-8格式编码转换成Unicode
nLen1	= MultiByteToWideChar(CP_UTF8,0,str,str.GetLength(),pWChar,0);
pWChar	= new wchar_t[nLen1 + 1];
memset(pWChar,0,(nLen1 + 1 ) * sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8,0,str,str.GetLength(),pWChar,nLen1);

char*	pChar = NULL;
DWORD	nLen2;

nLen2 = WideCharToMultiByte(CP_ACP,0,pWChar,nLen1,pChar,0,NULL,NULL);
pChar = new char[nLen2 + 1];
memset(pChar,0, nLen2 + 1);
WideCharToMultiByte(CP_ACP,0,pWChar,nLen1,pChar,nLen2,NULL,NULL);

// 查找登录时服务器时返回的信息
str.Format("%s",pChar);
MessageBox(str);
}
catch( CInternetException *e )
{
e->Delete();
}
}

 

（编程水平有限，其中代码并没有经过严格测试，难免有所不足，敬请谅解！）

 

6、源代码下载：

 

http://download.csdn.net/source/1740481