bool DisplayLoginForm(const wchar_t** wusername, const wchar_t** wpassword)
{
CREDUI_INFOW info;
static WCHAR username[CREDUI_MAX_USERNAME_LENGTH * sizeof(WCHAR)] = { 0 };
static WCHAR password[CREDUI_MAX_PASSWORD_LENGTH * sizeof(WCHAR)] = { 0 };
DWORD uLen = CREDUI_MAX_USERNAME_LENGTH;
DWORD pLen = CREDUI_MAX_PASSWORD_LENGTH;
LPVOID outStuff;
ULONG outSize = 0;
ULONG outPackage = 0;
BOOL save = false;
memset(&info, 0, sizeof(info));
info.cbSize = sizeof(info);
info.pszCaptionText = L"Authentication for Ultimatium";
info.pszMessageText = L"Please log in using your forum credentials.";
HRESULT result = CredUIPromptForWindowsCredentialsW(&info, 0, &outPackage, NULL, 0, &outStuff, &outSize, NULL, CREDUIWIN_GENERIC);
if (result == ERROR_SUCCESS)
{
CredUnPackAuthenticationBufferW(0, outStuff, outSize, username, &uLen, NULL, 0, password, &pLen);
*wusername = username;
*wpassword = password;
}
return (result == ERROR_SUCCESS);
}
static DWORD FspNpGetCredentials(
HWND hwndOwner, PWSTR Caption, DWORD PrevNpResult,
DWORD CredentialsKind,
PBOOL PSave,
PWSTR UserName, ULONG UserNameSize/* in chars */,
PWSTR Password, ULONG PasswordSize/* in chars */)
{
DWORD NpResult;
CREDUI_INFOW UiInfo;
memset(&UiInfo, 0, sizeof UiInfo);
UiInfo.cbSize = sizeof UiInfo;
UiInfo.hwndParent = hwndOwner;
UiInfo.pszCaptionText = Caption;
UiInfo.pszMessageText = L"Enter credentials to unlock this file system.";
#if !defined(FSP_NP_CREDUI_PROMPT_NEW)
NpResult = CredUIPromptForCredentialsW(&UiInfo, L"NONE", 0, 0,
UserName, UserNameSize,
Password, PasswordSize,
PSave,
CREDUI_FLAGS_GENERIC_CREDENTIALS |
CREDUI_FLAGS_DO_NOT_PERSIST |
CREDUI_FLAGS_ALWAYS_SHOW_UI |
(0 != PrevNpResult ? CREDUI_FLAGS_INCORRECT_PASSWORD : 0) |
(0 != PSave ? CREDUI_FLAGS_SHOW_SAVE_CHECK_BOX : 0) |
(FSP_NP_CREDENTIALS_PASSWORD == CredentialsKind ? 0/*CREDUI_FLAGS_KEEP_USERNAME*/ : 0));
#else
WCHAR Domain[CREDUI_MAX_DOMAIN_TARGET_LENGTH + 1];
ULONG AuthPackage = 0;
PVOID InAuthBuf = 0, OutAuthBuf = 0;
ULONG InAuthSize, OutAuthSize, DomainSize;
InAuthSize = 0;
if (!CredPackAuthenticationBufferW(
CRED_PACK_GENERIC_CREDENTIALS, UserName, Password, 0, &InAuthSize) &&
ERROR_INSUFFICIENT_BUFFER != GetLastError())
{
NpResult = GetLastError();
goto exit;
}
InAuthBuf = MemAlloc(InAuthSize);
if (0 == InAuthBuf)
{
NpResult = ERROR_NO_SYSTEM_RESOURCES;
goto exit;
}
if (!CredPackAuthenticationBufferW(
CRED_PACK_GENERIC_CREDENTIALS, UserName, Password, InAuthBuf, &InAuthSize))
{
NpResult = GetLastError();
goto exit;
}
NpResult = CredUIPromptForWindowsCredentialsW(&UiInfo, PrevNpResult,
&AuthPackage, InAuthBuf, InAuthSize, &OutAuthBuf, &OutAuthSize, PSave,
CREDUIWIN_GENERIC | (0 != PSave ? CREDUIWIN_CHECKBOX : 0));
if (ERROR_SUCCESS != NpResult)
goto exit;
DomainSize = sizeof Domain / sizeof Domain[0];
if (!CredUnPackAuthenticationBufferW(0, OutAuthBuf, OutAuthSize,
UserName, &UserNameSize, Domain, &DomainSize, Password, &PasswordSize))
{
NpResult = GetLastError();
goto exit;
}
NpResult = ERROR_SUCCESS;
exit:
if (0 != OutAuthBuf)
{
SecureZeroMemory(OutAuthBuf, OutAuthSize);
CoTaskMemFree(OutAuthBuf);
}
if (0 != InAuthBuf)
{
SecureZeroMemory(InAuthBuf, InAuthSize);
MemFree(InAuthBuf);
}
#endif
return NpResult;
}