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Windows: Display a warning during system encryption wizard when typed password reaches maximum length and inform user that no more characters are allowed and that they are ignored.

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This commit is contained in:
Mounir IDRASSI
2020-08-05 18:50:16 +02:00
parent 709964e156
commit b0a6377878
1 changed files with 42 additions and 36 deletions
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78
src/Common/Dlgcode.c
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@@ -1219,6 +1219,44 @@ void EnableCloseButton (HWND hwndDlg)
EnableMenuItem (GetSystemMenu (hwndDlg, FALSE), SC_CLOSE, MF_BYCOMMAND | MF_ENABLED);
}
void HandlePasswordEditWmChar (HWND hwnd, WPARAM wParam)
{
DWORD dwStartPos = 0, dwEndPos = 0;
short vk = VkKeyScanW ((WCHAR) wParam);
BYTE vkCode = LOBYTE (vk);
BYTE vkState = HIBYTE (vk);
bool ctrlPressed = (vkState & 2) && !(vkState & 4);
int dwMaxPassLen = (int) SendMessage (hwnd, EM_GETLIMITTEXT, 0, 0);
// check if there is a selected text
SendMessage (hwnd, EM_GETSEL, (WPARAM) &dwStartPos, (LPARAM) &dwEndPos);
if ((dwStartPos == dwEndPos)
&& (vkCode != VK_DELETE) && (vkCode != VK_BACK)
&& !ctrlPressed
&& (GetWindowTextLength (hwnd) == dwMaxPassLen))
{
EDITBALLOONTIP ebt;
DWORD dwTextSize = (DWORD) wcslen (GetString ("PASSWORD_MAXLENGTH_REACHED")) + 16;
WCHAR* szErrorText = (WCHAR*) malloc (dwTextSize * sizeof (WCHAR));
StringCchPrintf (szErrorText, dwTextSize, GetString ("PASSWORD_MAXLENGTH_REACHED"), dwMaxPassLen);
ebt.cbStruct = sizeof( EDITBALLOONTIP );
ebt.pszText = szErrorText;
ebt.pszTitle = lpszTitle;
ebt.ttiIcon = TTI_ERROR_LARGE; // tooltip warning icon
SendMessage(hwnd, EM_SHOWBALLOONTIP, 0, (LPARAM)&ebt);
MessageBeep (0xFFFFFFFF);
free (szErrorText);
}
else
SendMessage(hwnd, EM_HIDEBALLOONTIP, 0, 0);
}
// Protects an input field from having its content updated by a Paste action (call ToBootPwdField() to use this).
static LRESULT CALLBACK BootPwdFieldProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
@@ -1228,6 +1266,9 @@ static LRESULT CALLBACK BootPwdFieldProc (HWND hwnd, UINT message, WPARAM wParam
{
case WM_PASTE:
return 1;
case WM_CHAR:
HandlePasswordEditWmChar (hwnd, wParam);
break;
}
return CallWindowProcW (wp, hwnd, message, wParam, lParam);
@@ -1338,42 +1379,7 @@ static LRESULT CALLBACK NormalPwdFieldProc (HWND hwnd, UINT message, WPARAM wPar
}
break;
case WM_CHAR:
{
DWORD dwStartPos = 0, dwEndPos = 0;
short vk = VkKeyScanW ((WCHAR) wParam);
BYTE vkCode = LOBYTE (vk);
BYTE vkState = HIBYTE (vk);
bool ctrlPressed = (vkState & 2) && !(vkState & 4);
int dwMaxPassLen = bUseLegacyMaxPasswordLength? MAX_LEGACY_PASSWORD : MAX_PASSWORD;
// check if there is a selected text
SendMessage (hwnd, EM_GETSEL, (WPARAM) &dwStartPos, (LPARAM) &dwEndPos);
if ((dwStartPos == dwEndPos)
&& (vkCode != VK_DELETE) && (vkCode != VK_BACK)
&& !ctrlPressed
&& (GetWindowTextLength (hwnd) == dwMaxPassLen))
{
EDITBALLOONTIP ebt;
DWORD dwTextSize = (DWORD) wcslen (GetString ("PASSWORD_MAXLENGTH_REACHED")) + 16;
WCHAR* szErrorText = (WCHAR*) malloc (dwTextSize * sizeof (WCHAR));
StringCchPrintf (szErrorText, dwTextSize, GetString ("PASSWORD_MAXLENGTH_REACHED"), dwMaxPassLen);
ebt.cbStruct = sizeof( EDITBALLOONTIP );
ebt.pszText = szErrorText;
ebt.pszTitle = lpszTitle;
ebt.ttiIcon = TTI_ERROR_LARGE; // tooltip warning icon
SendMessage(hwnd, EM_SHOWBALLOONTIP, 0, (LPARAM)&ebt);
MessageBeep (0xFFFFFFFF);
free (szErrorText);
}
else
SendMessage(hwnd, EM_HIDEBALLOONTIP, 0, 0);
}
HandlePasswordEditWmChar (hwnd, wParam);
break;
}