VC Display Web page verification code, Analog CSDN Web page login

Abstract: By:koma These two days, would like to take a moment to study QQ space, the farm plug-in, so grab packet analysis of a, only a pity, in the QQ Web page when the encryption processing, unfortunately I do not have the Web programming. Some friends have said that those are through the JS code encryption, but I JS is also a blank, really apprenticeship not first die, ashamed ashamed ... In...
By:koma

These two days, originally wanted to spend a bit of time to study QQ space, farm plug-in, and then grabbed the packet analysis of a, only a pity, in the QQ Web page when the encryption processing, unfortunately I do not have the Web programming. Some friends have said that those are through the JS code encryption, but I JS is also a blank, really "apprenticeship not die first", ashamed ashamed ...

So had to pick csdn this kind of simple try to learn (for learning communication), the following is the study notes:

Program run:

1. Native environment: Windows XP SP3, ADSL

2. Development tools: WildPackets OmniPeek V5.1.4

Visual C + + 6.0

IE6.0

Flexedit V2.3.1871

3. Data package:

(QQ login, in the password 2222 encryption when the jam, I tried a lot of encryption algorithm, eventually ended in failure ...)

4, Verification code display using IStream and IPicture to display:

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/************************************************************************/ 
/* Function Description: Get the application's current directory  
/* Parameters: no  
/* Return value: Returns the directory path, CString type string  
/* By:koma 2009.10.13 11:23 
/************** / 
CString C***dlg::getexepath ()  
{  
Char pathbuf[260]; 
int pathlen =:: GetModuleFileName (null,pathbuf,260);

Replace the horizontal bar
while (TRUE)
{
if (pathbuf[pathlen--]== ' \ \ ')
Break
}
Pathbuf[++pathlen]= 0x0;
CString fname = pathbuf;
return fname;
}
/************************************************************************/
/* Function Description: Get the application's current directory
/* Parameter: None
/* Return value: Return directory path, CString type string
/* By:koma 2009.10.13 11:23
/************************************************************************/
CString C***dlg::getexepath ()
{
Char pathbuf[260];
int Pathlen =:: GetModuleFileName (null,pathbuf,260);

Replace the horizontal bar
while (TRUE)
{
if (pathbuf[pathlen--]== ' \ \ ')
Break
}
Pathbuf[++pathlen]= 0x0;
CString fname = pathbuf;
return fname;
}

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/************************************************************************/
/* Function Description: Download CAPTCHA image
/* Parameter: None
/* return value: None
/* By:koma 2009.10.13 11:50
/************************************************************************/
void C***dlg::D ownurlimage ()
{
CInternetSession session;
CString strURL;
CFile *pfile,out;
Char buff[512];
CString strpath;

Generate eight-bit random numbers to form a verification code
int nRand1 = rand ()%100000+10000;
int nRand2 = rand ()%200000+10000;

Strurl.format (");
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 ();
}
/************************************************************************/
/* Function Description: Download CAPTCHA image
/* Parameter: None
/* return value: None
/* By:koma 2009.10.13 11:50
/************************************************************************/
void C***dlg::D ownurlimage ()
{
CInternetSession session;
CString strURL;
CFile *pfile,out;
Char buff[512];
CString strpath;

Generate eight-bit random numbers to form a verification code
int nRand1 = rand ()%100000+10000;
int nRand2 = rand ()%200000+10000;

Strurl.format (");
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 ();
}

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/************************************************************************/
/* Function Description: show Captcha picture
/* Parameter: None
/* return value: None
/* By:koma 2009.10.13 13:12
/************************************************************************/
void C***dlg::showimage ()
{
:: CoInitialize (NULL); Initialize 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);

IStream is obtained by HGLOBAL, the parameter true means releasing the IStream while releasing the memory
hr =:: CreateStreamOnHGlobal (Hmem,true,&pstream);
ASSERT (SUCCEEDED (HR));

hr =:: OleLoadPicture (PStream, dwsize, TRUE, Iid_ipicture, (LPVOID *) &ppicture);
ASSERT (HR==S_OK);

Long nwidth,nheight; Wide-height mm_himetric mode, unit 0.01 mm
Ppicture->get_width (&nwidth); Wide
Ppicture->get_height (&nheight); High

CSize sz (nwidth,nheight); Original large display
dc. HIMETRICTODP (&SZ); Convert mm_himetric mode units to mm_text pixels

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);

Save the picture area so that only the picture area is refreshed later
M_picrect = rect;
if (ppicture)//release ipicture pointer
Ppicture->release ();
if (PStream)//release IStream pointer while releasing HMEM
Pstream->release ();
:: CoUninitialize ();
}
/************************************************************************/
/* Function Description: show Captcha picture
/* Parameter: None
/* return value: None
/* By:koma 2009.10.13 13:12
/************************************************************************/
void C***dlg::showimage ()
{
:: CoInitialize (NULL); Initialize 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);

IStream is obtained by HGLOBAL, the parameter true means releasing the IStream while releasing the memory
hr =:: CreateStreamOnHGlobal (Hmem,true,&pstream);
ASSERT (SUCCEEDED (HR));

hr =:: OleLoadPicture (PStream, dwsize, TRUE, Iid_ipicture, (LPVOID *) &ppicture);
ASSERT (HR==S_OK);

Long nwidth,nheight; Wide-height mm_himetric mode, unit 0.01 mm
Ppicture->get_width (&nwidth); Wide
Ppicture->get_height (&nheight); High

CSize sz (nwidth,nheight); Original large display
dc. HIMETRICTODP (&SZ); Convert mm_himetric mode units to mm_text pixels

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);

Save the picture area so that only the picture area is refreshed later
M_picrect = rect;
if (ppicture)//release ipicture pointer
Ppicture->release ();
if (PStream)//release IStream pointer while releasing HMEM
Pstream->release ();
:: CoUninitialize ();
}

VC Display Web page verification code, Analog CSDN Web page login