windows-nt/Source/XPSP1/NT/ds/win32/credui/api.cpp
2020-09-26 16:20:57 +08:00

2006 lines
50 KiB
C++

//=============================================================================
// Copyright (c) 2000 Microsoft Corporation
//
// api.cpp
//
// Win32 API function implementation and the DLL entry function.
//
// Created 02/29/2000 johnstep (John Stephens)
//=============================================================================
#include "precomp.hpp"
#include "dialogs.hpp"
#include "resource.h"
//#include "utils.hpp"
//-----------------------------------------------------------------------------
// Global Variables
//-----------------------------------------------------------------------------
HMODULE CreduiInstance = NULL;
ULONG CreduiComReferenceCount = 0;
BOOL CreduiIsPersonal = FALSE;
BOOL CreduiIsDomainController = FALSE;
BOOL CreduiIsSafeMode = FALSE;
CREDUI_STRINGS CreduiStrings;
UINT CreduiScarduiWmReaderArrival = 0;
UINT CreduiScarduiWmReaderRemoval = 0;
UINT CreduiScarduiWmCardInsertion = 0;
UINT CreduiScarduiWmCardRemoval = 0;
UINT CreduiScarduiWmCardCertAvail = 0;
UINT CreduiScarduiWmCardStatus = 0;
BOOL CreduiHasSmartCardSupport = FALSE;
static LONG CreduiFirstTime = TRUE;
static HANDLE CreduiInitEvent = NULL;
BOOL gbWaitingForSSOCreds = FALSE;
WCHAR gszSSOUserName[CREDUI_MAX_USERNAME_LENGTH];
WCHAR gszSSOPassword[CREDUI_MAX_PASSWORD_LENGTH];
BOOL gbStoredSSOCreds = FALSE;
//-----------------------------------------------------------------------------
// Functions
//-----------------------------------------------------------------------------
//=============================================================================
// CreduiInitStringTable
//
// This function loads all the string resources into the global string table.
// It only needs to be called once per process.
//
// Return TRUE if the string table was successfully initialized or FALSE
// otherwise.
//
// Created 03/26/2000 johnstep (John Stephens)
//=============================================================================
BOOL
CreduiInitStringTable()
{
#define CREDUI_STRING(id, name) {\
id, CreduiStrings.##name, (sizeof CreduiStrings.##name) / (sizeof WCHAR)\
}
static struct
{
UINT Id;
WCHAR *String;
ULONG Length;
} stringInfo[] = {
// Static labels for controls
CREDUI_STRING(IDS_USERNAME_STATIC, UserNameStatic),
CREDUI_STRING(IDS_PASSWORD_STATIC, PasswordStatic),
CREDUI_STRING(IDS_CERTIFICATE_STATIC, CertificateStatic),
CREDUI_STRING(IDS_PIN_STATIC, PinStatic),
CREDUI_STRING(IDS_CARD_STATIC, SmartCardStatic),
// Caption strings
CREDUI_STRING(IDS_DNS_CAPTION, DnsCaption),
CREDUI_STRING(IDS_NETBIOS_CAPTION, NetbiosCaption),
CREDUI_STRING(IDS_GENERIC_CAPTION, GenericCaption),
CREDUI_STRING(IDS_WELCOME, Welcome),
CREDUI_STRING(IDS_WELCOME_BACK, WelcomeBack),
CREDUI_STRING(IDS_CONNECTING, Connecting),
CREDUI_STRING(IDS_LOOKUP_NAME, LookupName),
CREDUI_STRING(IDS_CARD_ERROR, CardError),
CREDUI_STRING(IDS_SAVE, Save),
CREDUI_STRING(IDS_PASSPORT_SAVE, PassportSave ),
CREDUI_STRING(IDS_EMAIL_NAME, EmailName ),
// Tooltip strings
CREDUI_STRING(IDS_USERNAME_TIP_TITLE, UserNameTipTitle),
CREDUI_STRING(IDS_USERNAME_TIP_TEXT, UserNameTipText),
CREDUI_STRING(IDS_PASSWORD_TIP_TITLE, PasswordTipTitle),
CREDUI_STRING(IDS_PASSWORD_TIP_TEXT, PasswordTipText),
CREDUI_STRING(IDS_CAPSLOCK_TIP_TITLE, CapsLockTipTitle),
CREDUI_STRING(IDS_CAPSLOCK_TIP_TEXT, CapsLockTipText),
CREDUI_STRING(IDS_LOGON_TIP_TITLE, LogonTipTitle),
CREDUI_STRING(IDS_LOGON_TIP_TEXT, LogonTipText),
CREDUI_STRING(IDS_LOGON_TIP_CAPS, LogonTipCaps),
CREDUI_STRING(IDS_BACKWARDS_TIP_TITLE, BackwardsTipTitle),
CREDUI_STRING(IDS_BACKWARDS_TIP_TEXT, BackwardsTipText),
CREDUI_STRING(IDS_WRONG_OLD_TIP_TITLE, WrongOldTipTitle),
CREDUI_STRING(IDS_WRONG_OLD_TIP_TEXT, WrongOldTipText),
CREDUI_STRING(IDS_NOT_SAME_TIP_TITLE, NotSameTipTitle),
CREDUI_STRING(IDS_NOT_SAME_TIP_TEXT, NotSameTipText),
CREDUI_STRING(IDS_TOO_SHORT_TIP_TITLE, TooShortTipTitle),
CREDUI_STRING(IDS_TOO_SHORT_TIP_TEXT, TooShortTipText),
CREDUI_STRING(IDS_DOWNGRADE_TIP_TEXT, DowngradeTipText),
CREDUI_STRING(IDS_EMAILNAME_TIP_TITLE, EmailNameTipTitle),
CREDUI_STRING(IDS_EMAILNAME_TIP_TEXT, EmailNameTipText),
// strings that can appear in GUI or be copied from GUI and presented on cmdline
CREDUI_STRING(IDS_CMDLINE_NOCARD,NoCard),
CREDUI_STRING(IDS_EMPTY_READER, EmptyReader),
CREDUI_STRING(IDS_READING_CARD, ReadingCard),
CREDUI_STRING(IDS_CERTIFICATE, Certificate),
CREDUI_STRING(IDS_EMPTY_CARD, EmptyCard),
CREDUI_STRING(IDS_UNKNOWN_CARD, UnknownCard),
CREDUI_STRING(IDS_BACKWARDS_CARD, BackwardsCard)
};
#undef CREDUI_STRING
for (UINT i = 0; i < (sizeof stringInfo) / (sizeof stringInfo[0]); ++i)
{
// Read all strings into string array from resources of application
// Some strings which are GUI-only taken from resources
// Strings that are may be output to cmdline are taken from MC file, which also
// permits more flexible argument substitution during localization
if (stringInfo[i].Id >= 2500)
{
stringInfo[i].String[0] = 0;
FormatMessage(FORMAT_MESSAGE_FROM_HMODULE | FORMAT_MESSAGE_ARGUMENT_ARRAY,
CreduiInstance,
stringInfo[i].Id,
0,
stringInfo[i].String,
stringInfo[i].Length - 1,
NULL);
}
else if (!LoadString(CreduiInstance,
stringInfo[i].Id,
stringInfo[i].String,
stringInfo[i].Length))
{
CreduiDebugLog("CreduiInitStringTable: Load string %u failed\n",
stringInfo[i].Id);
return FALSE;
}
}
return TRUE;
}
//=============================================================================
// CreduiInitSmartCardWindowMessages
//
// Return TRUE on success or FALSE otherwise.
//
// Created 03/26/2000 johnstep (John Stephens)
//=============================================================================
BOOL
CreduiInitSmartCardWindowMessages()
{
struct
{
UINT *message;
CHAR *string;
} messageInfo[] = {
&CreduiScarduiWmReaderArrival, SCARDUI_READER_ARRIVAL,
&CreduiScarduiWmReaderRemoval, SCARDUI_READER_REMOVAL,
&CreduiScarduiWmCardInsertion, SCARDUI_SMART_CARD_INSERTION,
&CreduiScarduiWmCardRemoval, SCARDUI_SMART_CARD_REMOVAL,
&CreduiScarduiWmCardCertAvail, SCARDUI_SMART_CARD_CERT_AVAIL,
&CreduiScarduiWmCardStatus, SCARDUI_SMART_CARD_STATUS
};
for (UINT i = 0; i < (sizeof messageInfo) / (sizeof messageInfo[0]); ++i)
{
*messageInfo[i].message =
RegisterWindowMessageA(messageInfo[i].string);
if (*messageInfo[i].message == 0)
{
return FALSE;
}
}
return TRUE;
}
//=============================================================================
// CreduiApiInit
//
// This function is called at API entry points to ensure the common controls
// we need are initialized. Currently, the only initialization done is only
// needed once per process, but this macro will handle per thread
// initialization in the future, if necessary:
//
// Returns TRUE on success or FALSE otherwise.
//
// Created 03/10/2000 johnstep (John Stephens)
//=============================================================================
static
BOOL
CreduiApiInit()
{
// First time initialization:
ASSERT(CreduiInitEvent != NULL);
if (InterlockedCompareExchange(&CreduiFirstTime, FALSE, TRUE))
{
INITCOMMONCONTROLSEX init;
init.dwSize = sizeof init;
init.dwICC = ICC_USEREX_CLASSES;
if (!InitCommonControlsEx(&init))
{
return FALSE;
}
// Check for Personal SKU:
OSVERSIONINFOEXW versionInfo;
versionInfo.dwOSVersionInfoSize = sizeof OSVERSIONINFOEXW;
if (GetVersionEx(reinterpret_cast<OSVERSIONINFOW *>(&versionInfo)))
{
CreduiIsPersonal =
(versionInfo.wProductType == VER_NT_WORKSTATION) &&
(versionInfo.wSuiteMask & VER_SUITE_PERSONAL);
CreduiIsDomainController =
(versionInfo.wProductType == VER_NT_DOMAIN_CONTROLLER);
}
// Check for safe mode:
HKEY key;
if (RegOpenKeyEx(
HKEY_LOCAL_MACHINE,
L"SYSTEM\\CurrentControlSet\\Control\\SafeBoot\\Option",
0,
KEY_READ,
&key) == ERROR_SUCCESS)
{
if (RegQueryValueEx(
key,
L"OptionValue",
NULL,
NULL,
NULL,
NULL) == ERROR_SUCCESS)
{
CreduiIsSafeMode = TRUE;
}
RegCloseKey(key);
}
// Do other initialization:
InitializeCredMgr();
if (!CreduiInitStringTable())
{
return FALSE;
}
CreduiHasSmartCardSupport = CreduiInitSmartCardWindowMessages();
CreduiIconParentWindow::Register(CreduiInstance);
SetEvent(CreduiInitEvent);
}
else
{
WaitForSingleObject(CreduiInitEvent, INFINITE);
}
return TRUE;
}
//=============================================================================
// CreduiValidateUiInfo
//
// This function validates the CREDUI_INFO structure passed in. A NULL value
// is acceptable, and impies defaults.
//
// CredValidateUiInfoW for wide
// CredValidateUiInfoA for ANSI
//
// Arguments:
// uiInfo (in) - structure to validate
//
// Returns TRUE if the structure is valid, or FALSE otherwise.
//
// Created 03/25/2000 johnstep (John Stephens)
//=============================================================================
static
BOOL
CreduiValidateUiInfoW(
CREDUI_INFOW *uiInfo
)
{
if (uiInfo != NULL)
{
if (uiInfo->cbSize != sizeof(*uiInfo) )
{
return FALSE;
}
if ((uiInfo->hbmBanner != NULL) &&
(GetObjectType(uiInfo->hbmBanner) != OBJ_BITMAP))
{
return FALSE;
}
if ((uiInfo->pszMessageText != NULL) &&
(lstrlenW(uiInfo->pszMessageText) > CREDUI_MAX_MESSAGE_LENGTH))
{
return FALSE;
}
if ((uiInfo->pszCaptionText != NULL) &&
(lstrlenW(uiInfo->pszCaptionText) > CREDUI_MAX_CAPTION_LENGTH))
{
return FALSE;
}
}
return TRUE;
}
//=============================================================================
// CreduiConvertUiInfoToWide
//
// This function converts a CREDUI_INFOA structure to CREDUI_INFOW. On
// success,The caller is responsible for freeing pszMessageText and
// pszCaptionText via the delete [] operator.
//
// Arguments:
// uiInfoA (in) - structure to convert
// uiInfoW (out) - storage for converted structure. The pszMessageText and
// pszCaptionText will be set to NULL on failure or valid
// pointers (unless the in pointer is NULL) on success,
// allocated via the new [] operator.
//
// Returns TRUE if the structure is valid, or FALSE otherwise.
//
// Created 03/26/2000 johnstep (John Stephens)
//=============================================================================
static
BOOL
CreduiConvertUiInfoToWide(
CREDUI_INFOA *uiInfoA,
CREDUI_INFOW *uiInfoW
)
{
uiInfoW->cbSize = uiInfoA->cbSize;
uiInfoW->hwndParent = uiInfoA->hwndParent;
uiInfoW->pszMessageText = NULL;
uiInfoW->pszCaptionText = NULL;
uiInfoW->hbmBanner = uiInfoA->hbmBanner;
if (uiInfoA->pszMessageText != NULL)
{
uiInfoW->pszMessageText =
new WCHAR[lstrlenA(uiInfoA->pszMessageText) + 1];
if (uiInfoW->pszMessageText == NULL)
{
goto ErrorExit;
}
if (MultiByteToWideChar(
CP_ACP, 0, uiInfoA->pszMessageText, -1,
const_cast<WCHAR *>(uiInfoW->pszMessageText),
CREDUI_MAX_MESSAGE_LENGTH + 1) == 0)
{
goto ErrorExit;
}
}
else
{
uiInfoW->pszMessageText = NULL;
}
if (uiInfoA->pszCaptionText != NULL)
{
uiInfoW->pszCaptionText =
new WCHAR[lstrlenA(uiInfoA->pszCaptionText) + 1];
if (uiInfoW->pszCaptionText == NULL)
{
goto ErrorExit;
}
if (MultiByteToWideChar(
CP_ACP, 0, uiInfoA->pszCaptionText, -1,
const_cast<WCHAR *>(uiInfoW->pszCaptionText),
CREDUI_MAX_CAPTION_LENGTH + 1) == 0)
{
goto ErrorExit;
}
}
else
{
uiInfoW->pszCaptionText = NULL;
}
return TRUE;
ErrorExit:
if (uiInfoW->pszCaptionText != NULL)
{
delete [] const_cast<WCHAR *>(uiInfoW->pszCaptionText);
uiInfoW->pszCaptionText = NULL;
}
if (uiInfoW->pszMessageText != NULL)
{
delete [] const_cast<WCHAR *>(uiInfoW->pszMessageText);
uiInfoW->pszMessageText = NULL;
}
return FALSE;
}
//=============================================================================
// CredUIPromptForCredentials
//
// Presents a user interface to get credentials from an application.
//
// CredUIPromptForCredentialsW for wide
// CredUIPromptForCredentialsA for ANSI
//
// Arguments:
// uiInfo (in,optional)
// targetName (in) - if specified, securityContext must be NULL
// securityContext (in) - if specified, targetName must be NULL
// error (in) - the authentication error
// userName (in,out)
// userNameBufferSize (in) - maximum length of userName
// password (in,out)
// passwordBufferSize (in) - maximum length of password
// save (in/out) - TRUE if save check box was checked
// flags (in)
//
// Returns:
// ERROR_SUCCESS
// ERROR_CANCELLED
// ERROR_NO_SUCH_LOGON_SESSION - if credential manager cannot be used
// ERROR_GEN_FAILURE
// ERROR_INVALID_FLAGS
// ERROR_INVALID_PARAMETER
// ERROR_OUTOFMEMORY
//
// Created 10/17/2000 johnhaw
DWORD
CredUIPromptForCredentialsWorker(
IN BOOL doingCommandLine,
CREDUI_INFOW *uiInfo,
CONST WCHAR *targetName,
CtxtHandle *securityContext,
DWORD authError,
PWSTR pszUserName,
ULONG ulUserNameBufferSize,
PWSTR pszPassword,
ULONG ulPasswordBufferSize,
BOOL *save,
DWORD flags
)
/*++
Routine Description:
This routine implements the GUI and command line prompt for credentials.
Arguments:
DoingCommandLine - TRUE if prompting is to be done via the command line
FALSE if prompting is to be done via GUI
... - Other parameters are the same a CredUIPromptForCredentials API
Return Values:
Same as CredUIPromptForCredentials.
--*/
{
ULONG CertFlags;
ULONG CredCategory;
ULONG PersistFlags;
CreduiDebugLog("CUIPFCWorker: Flags: %x, Target: %S doingCommandLine: %i\n", flags, targetName, doingCommandLine);
if ((NULL == pszUserName) || (NULL == pszPassword))
{
return ERROR_INVALID_PARAMETER;
}
if (!CreduiApiInit())
{
return ERROR_GEN_FAILURE;
}
// Validate arguments:
if ((flags & ~CREDUI_FLAGS_PROMPT_VALID) != 0)
{
CreduiDebugLog("CreduiPromptForCredentials: flags not valid %lx.\n", flags );
return ERROR_INVALID_FLAGS;
}
//
// Ensure there is is only one bit defining cert support
//
CertFlags = flags & (CREDUI_FLAGS_REQUIRE_SMARTCARD|CREDUI_FLAGS_REQUIRE_CERTIFICATE|CREDUI_FLAGS_EXCLUDE_CERTIFICATES);
if ( CertFlags != 0 && !JUST_ONE_BIT(CertFlags) ) {
CreduiDebugLog("CreduiPromptForCredentials: require smartcard, require certificate, and exclude certificates are mutually exclusive %lx.\n", flags );
return ERROR_INVALID_FLAGS;
}
//
// For the command line version,
// limit cert support further.
//
if ( doingCommandLine ) {
if ( CertFlags == 0 ||
(CertFlags & CREDUI_FLAGS_REQUIRE_CERTIFICATE) != 0 ) {
CreduiDebugLog("CreduiPromptForCredentials: need either require smartcard or exclude certificates for command line %lx.\n", flags );
return ERROR_INVALID_FLAGS;
}
}
//
// Ensure there is only one bit defining the credential category
CredCategory = flags & (CREDUI_FLAGS_GENERIC_CREDENTIALS|CREDUI_FLAGS_USERNAME_TARGET_CREDENTIALS);
if ( CredCategory != 0 && !JUST_ONE_BIT(CredCategory) ) {
CreduiDebugLog("CreduiPromptForCredentials: generic creds and username target are mutually exclusive %lx.\n", flags );
return ERROR_INVALID_FLAGS;
}
//
// Ensure there is only one bit set saying whether the cred is to persist or not
//
PersistFlags = flags & (CREDUI_FLAGS_DO_NOT_PERSIST|CREDUI_FLAGS_PERSIST);
if ( PersistFlags != 0 && !JUST_ONE_BIT(PersistFlags) ) {
CreduiDebugLog("CreduiPromptForCredentials: DoNotPersist and Persist are mutually exclusive %lx.\n", flags );
return ERROR_INVALID_FLAGS;
}
//
// Ensure AlwaysShowUi is only specified for generic credentials
//
if ( flags & CREDUI_FLAGS_ALWAYS_SHOW_UI ) {
if ( (flags & CREDUI_FLAGS_GENERIC_CREDENTIALS) == 0) {
CreduiDebugLog("CreduiPromptForCredentials: AlwaysShowUi is only supported for generic credentials %lx.\n", flags );
return ERROR_INVALID_FLAGS;
}
}
//
// Don't support a half-implemented feature
//
if ( securityContext != NULL ) {
CreduiDebugLog("CreduiPromptForCredentials: securityContext must be null.\n" );
return ERROR_INVALID_PARAMETER;
}
//
// Validate the passed in UI info
//
if (!CreduiValidateUiInfoW(uiInfo))
{
CreduiDebugLog("CreduiPromptForCredentials: UI info is invalid.\n" );
return ERROR_INVALID_PARAMETER;
}
//
// Ensure there are strings defined for the caption
//
if (flags & CREDUI_FLAGS_DO_NOT_PERSIST)
{
if ((targetName == NULL) &&
((uiInfo == NULL) ||
(uiInfo->pszMessageText == NULL) ||
(uiInfo->pszCaptionText == NULL)))
{
CreduiDebugLog("CreduiPromptForCredentials: DoNotPersist and target data empty.\n" );
return ERROR_INVALID_PARAMETER;
}
}
else if (targetName != NULL)
{
if ((securityContext != NULL) ||
(targetName[0] == L'\0') ||
(lstrlen(targetName) > CREDUI_MAX_DOMAIN_TARGET_LENGTH))
{
CreduiDebugLog("CreduiPromptForCredentials: target name bad %ws.\n", targetName );
return ERROR_INVALID_PARAMETER;
}
}
else if (securityContext == NULL)
{
CreduiDebugLog("CreduiPromptForCredentials: no target data.\n" );
return ERROR_INVALID_PARAMETER;
}
//
// Ensure the caller supplied the default value for the save check box
//
if (flags & CREDUI_FLAGS_SHOW_SAVE_CHECK_BOX)
{
if (save == NULL)
{
CreduiDebugLog("CreduiPromptForCredentials: ShowSaveCheckbox and save is NULL.\n" );
return ERROR_INVALID_PARAMETER;
}
}
//
// Ensure the user supplied a username if they set CREDUI_FLAGS_KEEP_USERNAME
//
if ( flags & CREDUI_FLAGS_KEEP_USERNAME )
{
if ( pszUserName == NULL )
{
CreduiDebugLog("CreduiPromptForCredentials: CREDUI_FLAGS_KEEP_USERNAME and pszUserName is NULL.\n" );
return ERROR_INVALID_PARAMETER;
}
}
// Use the stack for user name and password:
WCHAR userName[CREDUI_MAX_USERNAME_LENGTH + 1];
WCHAR password[CREDUI_MAX_PASSWORD_LENGTH + 1];
ZeroMemory(userName, sizeof(userName));
ZeroMemory(password, sizeof(password));
if ( pszUserName != NULL && wcslen(pszUserName) > 0 )
{
wcscpy ( userName, pszUserName );
}
if ( pszPassword != NULL && wcslen(pszPassword) > 0)
{
wcscpy ( password, pszPassword );
}
// Do the password dialog box:
//
// Delay actually writing the credential to cred man if we're returning
// the credential to the caller.
// Otherwise, the CredWrite is just harvesting credentials for the next caller.
// So delay the CredWrite until this caller confirms the validity.
//
DWORD result = ERROR_OUTOFMEMORY;
CreduiPasswordDialog* pDlg = new CreduiPasswordDialog(
doingCommandLine,
(pszUserName != NULL && pszPassword != NULL ),
CredCategory,
uiInfo,
targetName,
userName,
sizeof(userName)/sizeof(WCHAR)-sizeof(WCHAR), // Pass MaxChars instead of buffer size
password,
sizeof(password)/sizeof(WCHAR)-sizeof(WCHAR), // Pass MaxChars instead of buffer size
save,
flags,
(flags & CREDUI_FLAGS_GENERIC_CREDENTIALS) ? NULL : securityContext,
authError,
&result);
if ( pDlg != NULL )
{
delete pDlg;
pDlg = NULL;
}
else
{
// couldn't create dialog, return.
result = ERROR_OUTOFMEMORY;
goto Cleanup;
}
// copy outbound username
if ( pszUserName != NULL )
{
if (ulUserNameBufferSize > wcslen ( userName ) )
{
wcscpy ( pszUserName, userName );
}
else
{
CreduiDebugLog("CreduiPromptForCredentials: type username is too long.\n" );
result = ERROR_INVALID_PARAMETER;
goto Cleanup;
}
}
if ( pszPassword != NULL )
{
if (ulPasswordBufferSize > wcslen ( password ) )
{
wcscpy ( pszPassword, password );
}
else
{
CreduiDebugLog("CreduiPromptForCredentials: type password is too long.\n" );
result = ERROR_INVALID_PARAMETER;
goto Cleanup;
}
}
Cleanup:
ZeroMemory(password, sizeof(password) );
return result;
}
//=============================================================================
CREDUIAPI
DWORD
WINAPI
CredUIPromptForCredentialsW(
CREDUI_INFOW *uiInfo,
CONST WCHAR *targetName,
CtxtHandle *securityContext,
DWORD authError,
PWSTR pszUserName,
ULONG ulUserNameBufferSize,
PWSTR pszPassword,
ULONG ulPasswordBufferSize,
BOOL *save,
DWORD flags
)
{
//
// Call the common code indicating this is the GUI interface
//
return CredUIPromptForCredentialsWorker(
FALSE, // GUI version
uiInfo,
targetName,
securityContext,
authError,
pszUserName,
ulUserNameBufferSize,
pszPassword,
ulPasswordBufferSize,
save,
flags );
}
CREDUIAPI
DWORD
WINAPI
CredUIPromptForCredentialsA(
CREDUI_INFOA *uiInfo,
CONST CHAR *targetName,
CtxtHandle *securityContext,
DWORD authError,
PSTR pszUserName,
ULONG ulUserNameBufferSize,
PSTR pszPassword,
ULONG ulPasswordBufferSize,
BOOL *save,
DWORD flags
)
{
DWORD result;
WCHAR targetNameW[CREDUI_MAX_DOMAIN_TARGET_LENGTH + 1];
WCHAR userName[CREDUI_MAX_USERNAME_LENGTH + 1];
WCHAR password[CREDUI_MAX_PASSWORD_LENGTH + 1];
CREDUI_INFOW uiInfoW = {0};
if ((NULL == pszUserName) || (NULL == pszPassword))
{
result = ERROR_INVALID_PARAMETER;
goto Exit;
}
// Convert in paramters to Unicode:
// If a CREDUI_INFO structure was passed, convert it to wide now:
if (uiInfo != NULL) {
if (!CreduiConvertUiInfoToWide(uiInfo, &uiInfoW)) {
result = ERROR_OUTOFMEMORY;
goto Exit;
}
}
// If a target name was passed, convert it to wide now:
if (targetName != NULL)
{
if (MultiByteToWideChar(
CP_ACP, 0, targetName, -1,
targetNameW,
CREDUI_MAX_DOMAIN_TARGET_LENGTH + 1) == 0)
{
result = ERROR_OUTOFMEMORY;
goto Exit;
}
}
userName[0] ='\0';
password[0] = '\0';
if (lstrlenA(pszUserName) > 0 )
{
if ( !MultiByteToWideChar( CP_ACP, 0, pszUserName, -1,
userName, sizeof(userName)/sizeof(WCHAR) ) ) {
result = ERROR_OUTOFMEMORY;
goto Exit;
}
}
if (lstrlenA(pszPassword) > 0)
{
if ( !MultiByteToWideChar( CP_ACP, 0, pszPassword, -1,
password, sizeof(password)/sizeof(WCHAR) ) ) {
result = ERROR_OUTOFMEMORY;
goto Exit;
}
}
//
// Call the common code indicating this is the GUI interface
//
result = CredUIPromptForCredentialsWorker(
FALSE, // GUI version
(uiInfo != NULL) ? &uiInfoW : NULL,
(targetName != NULL) ? targetNameW : NULL,
securityContext,
authError,
userName,
ulUserNameBufferSize,
password,
ulPasswordBufferSize,
save,
flags );
if ( result == NO_ERROR && pszUserName != NULL )
{
if ( wcslen(userName) < ulUserNameBufferSize )
{
if (!WideCharToMultiByte(CP_ACP, 0, userName, -1, pszUserName,
ulUserNameBufferSize, NULL, NULL) ) {
CreduiDebugLog("CreduiPromptForCredentials: type username cannot be converted to ANSI.\n" );
result = ERROR_INVALID_PARAMETER;
}
}
else
{
CreduiDebugLog("CreduiPromptForCredentials: type username is too long.\n" );
result = ERROR_INVALID_PARAMETER;
}
}
if ( result == NO_ERROR && pszPassword != NULL )
{
if ( wcslen ( password ) < ulPasswordBufferSize )
{
if (!WideCharToMultiByte(CP_ACP, 0, password, -1, pszPassword,
ulPasswordBufferSize, NULL, NULL) ) {
CreduiDebugLog("CreduiPromptForCredentials: type password cannot be converted to ANSI.\n" );
result = ERROR_INVALID_PARAMETER;
}
}
else
{
CreduiDebugLog("CreduiPromptForCredentials: type password is too long.\n" );
result = ERROR_INVALID_PARAMETER;
}
}
Exit:
ZeroMemory(password, sizeof(password) );
// Free the CREDUI_INFO allocations:
if (uiInfo != NULL)
{
if (uiInfoW.pszMessageText != NULL)
{
delete [] const_cast<WCHAR *>(uiInfoW.pszMessageText);
}
if (uiInfoW.pszCaptionText != NULL)
{
delete [] const_cast<WCHAR *>(uiInfoW.pszCaptionText);
}
}
return result;
}
DWORD
WINAPI
CredUIParseUserNameW(
CONST WCHAR *UserName,
WCHAR *user,
ULONG userBufferSize,
WCHAR *domain,
ULONG domainBufferSize
)
/*++
Routine Description:
CredUIParseUserName is used to breakup a username returned by the cred management APIs
into a username and domain part that can be used as input to other system APIs that
require the full broken-up user credential.
The following formats are supported:
@@<MarshalledCredentialReference>: This is a marshaled credential reference as
as defined by the CredIsMarshaledCredential API. Such a credential is returned
in the 'user' parameter. The 'domain' parameter is set to an empty string.
<DomainName>\<UserName>: The <UserName> is returned in the 'user' parameter and
the <DomainName> is returned in the 'domain' parameter. The name is considered
to have the this syntax if the 'UserName' string contains a \.
<UserName>@<DnsDomainName>: The entire string is returned in the 'user' parameter.
The 'domain' parameter is set to an empty string.
For this syntax, the last @ in the string is used since <UserName> may
contain an @ but <DnsDomainName> cannot.
<UserName>: The <UserName> is returned in the 'user' parameter.
The 'domain' parameter is set to an empty string.
Arguments:
UserName - The user name to be parsed.
user - Specifies a buffer to copy the user name portion of the parsed string to.
userBufferSize - Specifies the size of the 'user' array in characters.
The caller can ensure the passed in array is large enough by using an array
that is CRED_MAX_USERNAME_LENGTH+1 characters long or by passing in an array that
is wcslen(UserName)+1 characters long.
domain - Specifies a buffer to copy the domain name portion of the parsed string to.
domainBufferSize - Specifies the size of the 'domain' array in characters.
The caller can ensure the passed in array is large enough by using an array
that is CRED_MAX_USERNAME_LENGTH+1 characters long or by passing in an array that
is wcslen(UserName)+1 characters long.
Return Values:
The following status codes may be returned:
ERROR_INVALID_ACCOUNT_NAME - The user name is not valid.
ERROR_INVALID_PARAMETER - One of the parameters is invalid.
ERROR_INSUFFICIENT_BUFFER - One of the buffers is too small.
--*/
{
DWORD Status;
CREDUI_USERNAME_TYPE UsernameType;
//
// Use the low level routine to do the work
//
Status = CredUIParseUserNameWithType(
UserName,
user,
userBufferSize,
domain,
domainBufferSize,
&UsernameType );
if ( Status != NO_ERROR ) {
return Status;
}
//
// Avoid relative user names (for backward compatibility)
//
if ( UsernameType == CreduiRelativeUsername ) {
user[0] = L'\0';
domain[0] = L'\0';
return ERROR_INVALID_ACCOUNT_NAME;
}
return NO_ERROR;
}
DWORD
WINAPI
CredUIParseUserNameA(
CONST CHAR *userName,
CHAR *user,
ULONG userBufferSize,
CHAR *domain,
ULONG domainBufferSize
)
/*++
Routine Description:
Ansi version of CredUIParseUserName.
Arguments:
Same as wide version except userBufferSize and domainBufferSize are in terms of bytes.
Return Values:
Same as wide version.
--*/
{
DWORD Status;
WCHAR LocalUserName[CRED_MAX_USERNAME_LENGTH + 1];
WCHAR RetUserName[CRED_MAX_USERNAME_LENGTH + 1];
WCHAR RetDomainName[CRED_MAX_USERNAME_LENGTH + 1];
//
// Convert the passed in username to unicode
//
if ( MultiByteToWideChar( CP_ACP,
MB_ERR_INVALID_CHARS,
userName,
-1,
LocalUserName,
CRED_MAX_USERNAME_LENGTH + 1 ) == 0 ) {
Status = GetLastError();
goto Cleanup;
}
//
// Call the unicode version of the API
//
Status = CredUIParseUserNameW(
LocalUserName,
RetUserName,
CRED_MAX_USERNAME_LENGTH + 1,
RetDomainName,
CRED_MAX_USERNAME_LENGTH + 1 );
if ( Status != NO_ERROR ) {
goto Cleanup;
}
//
// Convert the answers back to ANSI
//
if ( WideCharToMultiByte( CP_ACP,
0,
RetUserName,
-1,
user,
userBufferSize,
NULL,
NULL ) == 0 ) {
Status = GetLastError();
goto Cleanup;
}
if ( WideCharToMultiByte( CP_ACP,
0,
RetDomainName,
-1,
domain,
domainBufferSize,
NULL,
NULL ) == 0 ) {
Status = GetLastError();
goto Cleanup;
}
Status = NO_ERROR;
Cleanup:
if ( Status != NO_ERROR ) {
user[0] = L'\0';
domain[0] = L'\0';
}
return Status;
}
////////////////////////
// Command Line functions
//=============================================================================
// CredUIInitControls
//
// Returns TRUE on success or FALSE otherwise.
//
// Created 06/21/2000 johnstep (John Stephens)
//=============================================================================
extern "C"
BOOL
WINAPI
CredUIInitControls()
{
if (CreduiApiInit())
{
// Register the Credential controls:
if (CreduiCredentialControl::Register(CreduiInstance))
{
return TRUE;
}
}
return FALSE;
}
//=============================================================================
// DllMain
//
// The DLL entry function. Since we are linked to the CRT, we must define a
// function with this name, which will be called from _DllMainCRTStartup.
//
// Arguments:
// instance (in)
// reason (in)
// (unused)
//
// Returns TRUE on success, or FALSE otherwise.
//
// Created 02/29/2000 johnstep (John Stephens)
//=============================================================================
extern "C"
BOOL
WINAPI
DllMain(
HINSTANCE instance,
DWORD reason,
VOID *
)
{
BOOL success = TRUE;
switch (reason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(instance);
CreduiInstance = instance;
// Create a global event which will be set when first-time
// initialization is completed by the first API call:
CreduiInitEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (CreduiInitEvent == NULL)
{
success = FALSE;
}
SHFusionInitialize(NULL);
// Register the Credential controls:
if (!CreduiCredentialControl::Register(instance))
{
CloseHandle(CreduiInitEvent);
CreduiInitEvent = NULL;
success = FALSE;
}
// InitializeCredMgr();
//
// Initialize the confirmation list
//
if ( !InitConfirmationList() ) {
CreduiCredentialControl::Unregister();
CloseHandle(CreduiInitEvent);
CreduiInitEvent = NULL;
success = FALSE;
}
break;
case DLL_PROCESS_DETACH:
CleanUpConfirmationList();
if (CreduiFirstTime == FALSE)
{
CreduiIconParentWindow::Unregister();
}
// Unregister the Credential controls:
CreduiCredentialControl::Unregister();
SHFusionUninitialize();
// Make sure to free the global initialization event:
if (CreduiInitEvent != NULL)
{
CloseHandle(CreduiInitEvent);
}
UninitializeCredMgr();
break;
};
return success;
}
//=============================================================================
// DllCanUnloadNow (COM)
//
// Created 04/03/2000 johnstep (John Stephens)
//=============================================================================
STDAPI
DllCanUnloadNow()
{
return (CreduiComReferenceCount == 0) ? S_OK : S_FALSE;
}
//=============================================================================
// DllGetClassObject (COM)
//
// Created 04/03/2000 johnstep (John Stephens)
//=============================================================================
STDAPI
DllGetClassObject(
CONST CLSID &classId,
CONST IID &interfaceId,
VOID **outInterface
)
{
if (classId != CreduiStringArrayClassId)
{
return CLASS_E_CLASSNOTAVAILABLE;
}
CreduiStringArrayFactory *factory = new CreduiStringArrayFactory;
if (factory == NULL)
{
return E_OUTOFMEMORY;
}
HRESULT result = factory->QueryInterface(interfaceId, outInterface);
factory->Release();
// Release the string array object in any case, because of the
// QueryInterface succeeded, it already took another reference count on
// the object:
return result;
}
//=============================================================================
// DllRegisterServer (COM)
//
// Created 04/03/2000 johnstep (John Stephens)
//=============================================================================
STDAPI
DllRegisterServer()
{
HRESULT result = E_FAIL;
WCHAR fileName[MAX_PATH + 1];
if (GetModuleFileName(CreduiInstance, fileName, MAX_PATH))
{
HKEY regKey;
if (RegCreateKeyEx(
HKEY_CLASSES_ROOT,
L"CLSID\\" CREDUI_STRING_ARRAY_CLASS_STRING
L"\\InProcServer32",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_SET_VALUE,
NULL,
&regKey,
NULL) == ERROR_SUCCESS)
{
if (RegSetValueEx(
regKey,
NULL,
0,
REG_SZ,
reinterpret_cast<CONST BYTE *>(fileName),
(lstrlen(fileName) + 1) * 2) == ERROR_SUCCESS)
{
if (RegSetValueEx(
regKey,
L"ThreadingModel",
0,
REG_SZ,
reinterpret_cast<CONST BYTE *>(L"Apartment"),
18) == ERROR_SUCCESS)
{
result = S_OK;
}
}
RegCloseKey(regKey);
}
}
return result;
}
//=============================================================================
// DllUnregisterServer (COM)
//
// Created 04/03/2000 johnstep (John Stephens)
//=============================================================================
STDAPI
DllUnregisterServer()
{
HRESULT result = S_OK;
LONG error;
// Delete our InProcServer32 key:
error =
RegDeleteKey(
HKEY_CLASSES_ROOT,
L"CLSID\\" CREDUI_STRING_ARRAY_CLASS_STRING L"\\InProcServer32");
if ((error != ERROR_SUCCESS) &&
(error != ERROR_FILE_NOT_FOUND))
{
result = E_FAIL;
}
// Delete our class ID key:
error =
RegDeleteKey(
HKEY_CLASSES_ROOT,
L"CLSID\\" CREDUI_STRING_ARRAY_CLASS_STRING);
if ((error != ERROR_SUCCESS) &&
(error != ERROR_FILE_NOT_FOUND))
{
result = E_FAIL;
}
return result;
}
CREDUIAPI
DWORD
WINAPI
CredUIConfirmCredentialsW(
PCWSTR pszTargetName,
BOOL bConfirm
)
{
return ConfirmCred ( pszTargetName, bConfirm, TRUE );
}
CREDUIAPI
DWORD
WINAPI
CredUIConfirmCredentialsA(
PCSTR pszTargetName,
BOOL bConfirm
)
{
WCHAR targetNameW[CRED_MAX_STRING_LENGTH+1+CRED_MAX_STRING_LENGTH];
// If a target name was passed, convert it to wide now:
if (pszTargetName != NULL)
{
if (MultiByteToWideChar(
CP_ACP, 0, pszTargetName, -1,
targetNameW,
CRED_MAX_STRING_LENGTH+1+CRED_MAX_STRING_LENGTH) == 0)
{
return GetLastError();
}
}
return CredUIConfirmCredentialsW ( targetNameW, bConfirm );
}
CREDUIAPI
DWORD
WINAPI
CredUICmdLinePromptForCredentialsW(
PCWSTR targetName,
PCtxtHandle securityContext,
DWORD dwAuthError,
PWSTR UserName,
ULONG ulUserBufferSize,
PWSTR pszPassword,
ULONG ulPasswordBufferSize,
PBOOL pfSave,
DWORD flags
)
{
//
// Call the common code indicating this is the command line interface
//
return CredUIPromptForCredentialsWorker(
TRUE, // Command line version
NULL, // Command line version has no uiInfo,
targetName,
securityContext,
dwAuthError,
UserName,
ulUserBufferSize,
pszPassword,
ulPasswordBufferSize,
pfSave,
flags );
}
CREDUIAPI
DWORD
WINAPI
CredUICmdLinePromptForCredentialsA(
PCSTR targetName,
PCtxtHandle pContext,
DWORD dwAuthError,
PSTR UserName,
ULONG ulUserBufferSize,
PSTR pszPassword,
ULONG ulPasswordBufferSize,
PBOOL pfSave,
DWORD flags
)
{
DWORD result = ERROR_GEN_FAILURE;
INT targetNameLength = lstrlenA(targetName);
WCHAR *targetNameW = NULL;
if (!CreduiApiInit())
{
return ERROR_GEN_FAILURE;
}
// convert to unicode
WCHAR userNameW[CREDUI_MAX_USERNAME_LENGTH + 1];
WCHAR *pUserNameW;
if ( UserName != NULL )
{
if (MultiByteToWideChar(CP_ACP, 0, UserName, -1,
userNameW, sizeof(userNameW)/sizeof(WCHAR)) == 0)
{
result = GetLastError();
goto Exit;
}
pUserNameW = userNameW;
}
else
{
pUserNameW = NULL;
}
WCHAR passwordW[CREDUI_MAX_PASSWORD_LENGTH + 1];
WCHAR *ppasswordW;
if ( pszPassword != NULL )
{
if (MultiByteToWideChar(CP_ACP, 0, pszPassword, -1,
passwordW, sizeof(passwordW)/sizeof(WCHAR)) == 0)
{
result = GetLastError();
goto Exit;
}
ppasswordW = passwordW;
}
else
{
ppasswordW = NULL;
}
// Allocate the target name memory because it can be up to 32 KB:
if (targetName != NULL)
{
targetNameW = new WCHAR[targetNameLength + 1];
if (targetNameW != NULL)
{
if (MultiByteToWideChar(CP_ACP, 0, targetName, -1,
targetNameW, sizeof(targetNameW)/sizeof(WCHAR)) == 0)
{
result = GetLastError();
goto Exit;
}
}
else
{
result = ERROR_NOT_ENOUGH_MEMORY;
goto Exit;
}
}
else
{
targetNameW = NULL;
}
result = CredUICmdLinePromptForCredentialsW ( targetNameW,
pContext,
dwAuthError,
userNameW,
ulUserBufferSize,
passwordW,
ulPasswordBufferSize,
pfSave,
flags );
if ( UserName != NULL )
{
if ( wcslen(userNameW) < ulUserBufferSize )
{
if (!WideCharToMultiByte(CP_ACP, 0, userNameW, -1, UserName,
ulUserBufferSize, NULL, NULL) ) {
result = GetLastError();
goto Exit;
}
}
else
{
CreduiDebugLog("CreduiPromptForCredentials: typed username is too long.\n" );
result = ERROR_INVALID_PARAMETER;
goto Exit;
}
}
if ( pszPassword != NULL )
{
if ( wcslen ( passwordW ) < ulPasswordBufferSize )
{
if (!WideCharToMultiByte(CP_ACP, 0, passwordW, -1, pszPassword,
ulPasswordBufferSize, NULL, NULL)) {
result = GetLastError();
goto Exit;
}
}
else
{
CreduiDebugLog("CreduiPromptForCredentials: typed password is too long.\n" );
result = ERROR_INVALID_PARAMETER;
goto Exit;
}
}
Exit:
ZeroMemory(passwordW, sizeof(passwordW) );
// Free the target name memory:
if (targetNameW != NULL)
{
delete [] targetNameW;
}
return result;
}
// call this api to store a single-sign-on credential
// retruns ERROR_SUCCESS if success
CREDUIAPI
DWORD
WINAPI
CredUIStoreSSOCredW (
PCWSTR pszRealm,
PCWSTR pszUsername,
PCWSTR pszPassword,
BOOL bPersist
)
{
DWORD dwResult = ERROR_GEN_FAILURE;
if ( pszUsername == NULL || pszPassword == NULL )
return dwResult;
WCHAR szTargetName[CREDUI_MAX_DOMAIN_TARGET_LENGTH];
PVOID password = (PVOID)pszPassword;
// temporarily cache them locally
wcsncpy ( gszSSOUserName, pszUsername, CREDUI_MAX_USERNAME_LENGTH );
wcsncpy ( gszSSOPassword, pszPassword, CREDUI_MAX_PASSWORD_LENGTH );
gbStoredSSOCreds = TRUE;
if ( gbWaitingForSSOCreds || !bPersist)
{
dwResult = ERROR_SUCCESS;
}
else
{
// otherwise store them in credmgr
if ( pszRealm )
{
// validate it's not zero length
int len = wcslen(pszRealm);
if ( len == 0 || len > CREDUI_MAX_DOMAIN_TARGET_LENGTH - 3 )
{
return ERROR_INVALID_PARAMETER;
}
wcsncpy ( szTargetName, pszRealm, len+1 );
}
else
{
GetDeaultSSORealm(szTargetName, TRUE);
}
// finalize the target name
wcscat ( szTargetName, L"\\*" );
// encrypt the password
PVOID pEncryptedPassword;
DWORD dwESize = wcslen(pszPassword)+1;
DWORD dwEncrypt = EncryptPassword ( (PWSTR)pszPassword, &pEncryptedPassword, &dwESize );
if ( dwEncrypt == ERROR_SUCCESS )
{
password = pEncryptedPassword;
}
// write it out
CREDENTIALW NewCredential;
memset ( (void*)&NewCredential, 0, sizeof(CREDENTIALW));
DWORD dwFlags = 0;
NewCredential.TargetName = szTargetName;
NewCredential.Type = CRED_TYPE_DOMAIN_VISIBLE_PASSWORD;
NewCredential.Persist = bPersist ? CRED_PERSIST_ENTERPRISE : CRED_PERSIST_SESSION;
NewCredential.Flags = 0;
NewCredential.CredentialBlobSize = dwESize;
NewCredential.UserName = (LPWSTR)pszUsername;
NewCredential.CredentialBlob = reinterpret_cast<BYTE *>(password);
if ( CredWriteW(&NewCredential, dwFlags))
{
dwResult = ERROR_SUCCESS;
}
if ( dwEncrypt == ERROR_SUCCESS )
{
LocalFree (pEncryptedPassword);
}
}
return dwResult;
}
CREDUIAPI
DWORD
WINAPI
CredUIStoreSSOCredA (
PCSTR pszRealm,
PCSTR pszUsername,
PCSTR pszPassword,
BOOL bPersist
)
{
DWORD dwResult = ERROR_GEN_FAILURE;
// convert to unicode
WCHAR realmW[CREDUI_MAX_DOMAIN_TARGET_LENGTH];
WCHAR *prealmW;
if ( pszRealm != NULL )
{
if (MultiByteToWideChar(CP_ACP, 0, pszRealm, -1,
realmW, lstrlenA(pszRealm) + 1) == 0)
{
goto Exit;
}
prealmW = realmW;
}
else
{
prealmW = NULL;
}
WCHAR userNameW[CREDUI_MAX_USERNAME_LENGTH + 1];
WCHAR *pUserNameW;
if ( pszUsername != NULL )
{
if (MultiByteToWideChar(CP_ACP, 0, pszUsername, -1,
userNameW, lstrlenA(pszUsername) + 1) == 0)
{
goto Exit;
}
pUserNameW = userNameW;
}
else
{
pUserNameW = NULL;
}
WCHAR passwordW[CREDUI_MAX_PASSWORD_LENGTH + 1];
WCHAR *ppasswordW;
if ( pszPassword != NULL )
{
if (MultiByteToWideChar(CP_ACP, 0, pszPassword, -1,
passwordW, lstrlenA(pszPassword) + 1) == 0)
{
goto Exit;
}
ppasswordW = passwordW;
}
else
{
ppasswordW = NULL;
}
dwResult = CredUIStoreSSOCredW ( prealmW, pUserNameW, ppasswordW, bPersist );
Exit:
// clean up passwords in memory
ZeroMemory(passwordW, CREDUI_MAX_PASSWORD_LENGTH * sizeof (WCHAR) + 1);
return dwResult;
}
// call this api to retrieve the username for a single-sign-on credential
// retruns ERROR_SUCCESS if success, ERROR_NOT_FOUND if none was found
CREDUIAPI
DWORD
WINAPI
CredUIReadSSOCredW (
PCWSTR pszRealm,
PWSTR* ppszUsername
)
{
DWORD dwReturn = ERROR_NOT_FOUND;
WCHAR szTargetName[CREDUI_MAX_DOMAIN_TARGET_LENGTH];
if ( pszRealm )
{
// validate it's not zero length
int len = wcslen(pszRealm);
if ( len == 0 || len > CREDUI_MAX_DOMAIN_TARGET_LENGTH - 3 )
{
return ERROR_INVALID_PARAMETER;
}
wcsncpy ( szTargetName, pszRealm, len+1 );
}
else
{
GetDeaultSSORealm(szTargetName, FALSE);
}
if ( wcslen ( szTargetName ) != 0 )
{
// finalize the target name
wcscat ( szTargetName, L"\\*" );
PCREDENTIALW pCred;
DWORD dwFlags = 0;
if ( CredReadW ( szTargetName,
CRED_TYPE_DOMAIN_VISIBLE_PASSWORD,
dwFlags,
&pCred ) )
{
*ppszUsername = (PWSTR)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WCHAR)*(wcslen(pCred->UserName)+1));
if ( *ppszUsername )
{
dwReturn = ERROR_SUCCESS;
wcscpy ( *ppszUsername, pCred->UserName );
}
CredFree ( pCred );
}
}
return dwReturn;
}
// call this api to retrieve the username for a single-sign-on credential
// retruns ERROR_SUCCESS if success, ERROR_NOT_FOUND if none was found
CREDUIAPI
DWORD
WINAPI
CredUIReadSSOCredA (
PCSTR pszRealm,
PSTR* ppszUsername
)
{
DWORD dwReturn = ERROR_NOT_FOUND;
WCHAR szTargetName[CREDUI_MAX_DOMAIN_TARGET_LENGTH];
PCREDENTIALW pCred;
DWORD dwFlags = 0;
if ( pszRealm )
{
// validate it's not zero length
int len = lstrlenA(pszRealm);
if ( len == 0 || len > CREDUI_MAX_DOMAIN_TARGET_LENGTH - 3 )
{
return ERROR_INVALID_PARAMETER;
}
if (MultiByteToWideChar(CP_ACP, 0, pszRealm, -1,
szTargetName, len + 1) == 0)
{
goto Exit;
}
}
else
{
GetDeaultSSORealm(szTargetName, FALSE);
}
if ( wcslen ( szTargetName ) != 0 )
{
// finalize the target name
wcscat ( szTargetName, L"\\*" );
// first call credmgr to set the target info
if ( CredReadW ( szTargetName,
CRED_TYPE_DOMAIN_VISIBLE_PASSWORD,
dwFlags,
&pCred ) )
{
DWORD dwLen = wcslen(pCred->UserName);
*ppszUsername = (PSTR)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CHAR)*(dwLen+1));
if ( *ppszUsername )
{
WideCharToMultiByte(CP_ACP, 0, pCred->UserName, -1, *ppszUsername,
dwLen, NULL, NULL);
dwReturn = ERROR_SUCCESS;
}
CredFree ( pCred );
}
}
Exit:
return dwReturn;
}