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// hashgenDlg.cpp : implementation file
//
#include "stdafx.h"
#include "hashgen.h"
#include "hashgenDlg.h"
#include "cryptohash.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
// Implementation
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// ChashgenDlg dialog
ChashgenDlg::ChashgenDlg(CWnd* pParent /*=NULL*/)
: CDialog(ChashgenDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void ChashgenDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(ChashgenDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON_HASHTEXT, &ChashgenDlg::OnBnClickedButtonHashtext)
ON_BN_CLICKED(IDC_BUTTON_HASHFILE, &ChashgenDlg::OnBnClickedButtonHashfile)
ON_BN_CLICKED(IDC_BUTTON_BROWSE, &ChashgenDlg::OnBnClickedButtonBrowse)
END_MESSAGE_MAP()
// ChashgenDlg message handlers
BOOL ChashgenDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
BOOL bNameValid;
CString strAboutMenu;
bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
ASSERT(bNameValid);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
CComboBox* pCombo = (CComboBox*)GetDlgItem(IDC_COMBO_ALGORITHM);
ASSERT_VALID(pCombo);
int pos = pCombo->AddString(_T("SHA-1"));
pCombo->SetItemData(pos, CALG_SHA1);
pos = pCombo->AddString(_T("MD5"));
pCombo->SetItemData(pos, CALG_MD5);
pos = pCombo->AddString(_T("MD4"));
pCombo->SetItemData(pos, CALG_MD4);
pos = pCombo->AddString(_T("MD2"));
pCombo->SetItemData(pos, CALG_MD2);
pCombo->SetCurSel(0);
return TRUE; // return TRUE unless you set the focus to a control
}
void ChashgenDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void ChashgenDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this function to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR ChashgenDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void ChashgenDlg::OnBnClickedButtonHashtext()
{
CString text;
GetDlgItemText(IDC_EDIT_TEXT, text);
if(text.IsEmpty())
{
AfxMessageBox(_T("No text was introduced."));
}
CComboBox* pCombo = (CComboBox*)GetDlgItem(IDC_COMBO_ALGORITHM);
ASSERT_VALID(pCombo);
ALG_ID algorithm = (ALG_ID)pCombo->GetItemData(pCombo->GetCurSel());
std::string hash;
crypto::errorinfo_t lasterror;
CT2A atext(text);
switch(algorithm)
{
case CALG_SHA1:
{
crypto::sha1_helper_t hhelper;
hash = hhelper.hexdigesttext(atext.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
case CALG_MD5:
{
crypto::md5_helper_t hhelper;
hash = hhelper.hexdigesttext(atext.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
case CALG_MD4:
{
crypto::md4_helper_t hhelper;
hash = hhelper.hexdigesttext(atext.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
case CALG_MD2:
{
crypto::md2_helper_t hhelper;
hash = hhelper.hexdigesttext(atext.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
}
if(!hash.empty())
{
CA2T wtext(hash.c_str());
SetDlgItemText(IDC_EDIT_HASH, wtext.m_szBuffer);
}
else
{
CA2T wtext(lasterror.errorMessage.c_str());
SetDlgItemText(IDC_EDIT_HASH, wtext.m_szBuffer);
}
}
void ChashgenDlg::OnBnClickedButtonHashfile()
{
CString filename;
GetDlgItemText(IDC_EDIT_FILENAME, filename);
if(filename.IsEmpty())
{
AfxMessageBox(_T("No filename specified!"));
return;
}
DWORD attr = ::GetFileAttributes(filename);
if(attr == INVALID_FILE_ATTRIBUTES ||
!(((attr & FILE_ATTRIBUTE_NORMAL) == FILE_ATTRIBUTE_NORMAL) ||
((attr & FILE_ATTRIBUTE_ARCHIVE) == FILE_ATTRIBUTE_ARCHIVE)))
{
AfxMessageBox(_T("Invalid filename!"));
return;
}
CComboBox* pCombo = (CComboBox*)GetDlgItem(IDC_COMBO_ALGORITHM);
ASSERT_VALID(pCombo);
ALG_ID algorithm = (ALG_ID)pCombo->GetItemData(pCombo->GetCurSel());
std::string hash;
crypto::errorinfo_t lasterror;
CT2A afilename(filename);
switch(algorithm)
{
case CALG_SHA1:
{
crypto::sha1_helper_t hhelper;
hash = hhelper.hexdigestfile(afilename.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
case CALG_MD5:
{
crypto::md5_helper_t hhelper;
hash = hhelper.hexdigestfile(afilename.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
case CALG_MD4:
{
crypto::md4_helper_t hhelper;
hash = hhelper.hexdigestfile(afilename.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
case CALG_MD2:
{
crypto::md2_helper_t hhelper;
hash = hhelper.hexdigestfile(afilename.m_szBuffer);
lasterror = hhelper.lasterror();
}
break;
}
if(!hash.empty())
{
CA2T wtext(hash.c_str());
SetDlgItemText(IDC_EDIT_HASH, wtext.m_szBuffer);
}
else
{
CA2T wtext(lasterror.errorMessage.c_str());
SetDlgItemText(IDC_EDIT_HASH, wtext.m_szBuffer);
}
}
void ChashgenDlg::OnBnClickedButtonBrowse()
{
CFileDialog dlg(TRUE, NULL, NULL, 0, _T("All Files (*.*)|*.*||"), this, 0, TRUE);
if(IDOK == dlg.DoModal())
{
SetDlgItemText(IDC_EDIT_FILENAME, dlg.GetPathName());
}
}
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Marius Bancila is the author of Modern C++ Programming Cookbook and The Modern C++ Challenge. He has been a Microsoft MVP since 2006, initially for VC++ and nowadays for Development technologies. He works as a system architect for Visma, a Norwegian-based company. He works with various technologies, both managed and unmanaged, for desktop, cloud, and mobile, mainly developing with VC++ and VC#. He keeps a blog at http://www.mariusbancila.ro/blog, focused on Windows programming. You can follow Marius on Twitter at @mariusbancila.