/////////////////////////////////////////////////////////////////////////////
//
//  Copyright (c) 1999-2002 Microsoft Corporation
//
//  Module Name:
//      Dhcp.cpp
//
//  Description:
//      Implementation of the DHCP Service resource extension property page classes.
//
//  Author:
//      David Potter (DavidP)   March 24, 1999
//
//  Revision History:
//
//  Notes:
//
/////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "ClNetResEx.h"
#include "Dhcp.h"
#include "BasePage.inl"
#include "ExtObj.h"
#include "DDxDDv.h"
#include "HelpData.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDhcpParamsPage property page
/////////////////////////////////////////////////////////////////////////////

IMPLEMENT_DYNCREATE( CDhcpParamsPage, CBasePropertyPage )

/////////////////////////////////////////////////////////////////////////////
// Message Maps

BEGIN_MESSAGE_MAP( CDhcpParamsPage, CBasePropertyPage )
    //{{AFX_MSG_MAP(CDhcpParamsPage)
    ON_EN_CHANGE( IDC_PP_DHCP_DATABASEPATH, OnChangeRequiredField )
    ON_EN_CHANGE( IDC_PP_DHCP_LOGFILEPATH, OnChangeRequiredField )
    ON_EN_CHANGE( IDC_PP_DHCP_BACKUPPATH, OnChangeRequiredField )
    //}}AFX_MSG_MAP
    // TODO: Modify the following lines to represent the data displayed on this page.
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
//++
//
//  CDhcpParamsPage::CDhcpParamsPage
//
//  Description:
//      Default constructor.
//
//  Arguments:
//      None.
//
//  Return Value:
//      None.
//
//--
/////////////////////////////////////////////////////////////////////////////
CDhcpParamsPage::CDhcpParamsPage( void )
    : CBasePropertyPage(
            CDhcpParamsPage::IDD,
            g_aHelpIDs_IDD_PP_DHCP_PARAMETERS,
            g_aHelpIDs_IDD_WIZ_DHCP_PARAMETERS
            )
{
    // TODO: Modify the following lines to represent the data displayed on this page.
    //{{AFX_DATA_INIT(CDhcpParamsPage)
    m_strDatabasePath = _T("");
    m_strLogFilePath = _T("");
    m_strBackupPath = _T("");
    //}}AFX_DATA_INIT

    // Setup the property array.
    {
        m_rgProps[ epropDatabasePath ].Set( REGPARAM_DHCP_DATABASEPATH, m_strDatabasePath, m_strPrevDatabasePath, m_strDatabaseExpandedPath );
        m_rgProps[ epropLogFilePath ].Set( REGPARAM_DHCP_LOGFILEPATH, m_strLogFilePath, m_strPrevLogFilePath, m_strLogFileExpandedPath );
        m_rgProps[ epropBackupPath ].Set( REGPARAM_DHCP_BACKUPPATH, m_strBackupPath, m_strPrevBackupPath, m_strBackupExpandedPath );
    } // Setup the property array

    m_iddPropertyPage = IDD_PP_DHCP_PARAMETERS;
    m_iddWizardPage = IDD_WIZ_DHCP_PARAMETERS;

} //*** CDhcpParamsPage::CDhcpParamsPage()

/////////////////////////////////////////////////////////////////////////////
//++
//
//  CDhcpParamsPage::DoDataExchange
//
//  Description:
//      Do data exchange between the dialog and the class.
//
//  Arguments:
//      pDX     [IN OUT] Data exchange object 
//
//  Return Value:
//      None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CDhcpParamsPage::DoDataExchange( CDataExchange * pDX )
{
    if ( ! pDX->m_bSaveAndValidate || ! BSaved() )
    {
        AFX_MANAGE_STATE( AfxGetStaticModuleState() );

        // TODO: Modify the following lines to represent the data displayed on this page.
        //{{AFX_DATA_MAP(CDhcpParamsPage)
        DDX_Control( pDX, IDC_PP_DHCP_DATABASEPATH, m_editDatabasePath );
        DDX_Control( pDX, IDC_PP_DHCP_LOGFILEPATH, m_editLogFilePath );
        DDX_Control( pDX, IDC_PP_DHCP_BACKUPPATH, m_editBackupPath );
        DDX_Text( pDX, IDC_PP_DHCP_DATABASEPATH, m_strDatabasePath );
        DDX_Text( pDX, IDC_PP_DHCP_LOGFILEPATH, m_strLogFilePath );
        DDX_Text( pDX, IDC_PP_DHCP_BACKUPPATH, m_strBackupPath );
        //}}AFX_DATA_MAP

        // Handle numeric parameters.
        if ( ! BBackPressed() )
        {
        } // if: back button not pressed

        if ( pDX->m_bSaveAndValidate )
        {
            // Make sure all required fields are present.
            if ( ! BBackPressed() )
            {
                DDV_RequiredText( pDX, IDC_PP_DHCP_DATABASEPATH, IDC_PP_DHCP_DATABASEPATH_LABEL, m_strDatabasePath );
                DDV_RequiredText( pDX, IDC_PP_DHCP_LOGFILEPATH, IDC_PP_DHCP_LOGFILEPATH_LABEL, m_strLogFilePath );
                DDV_RequiredText( pDX, IDC_PP_DHCP_BACKUPPATH, IDC_PP_DHCP_BACKUPPATH_LABEL, m_strBackupPath );

            } // if: back button not pressed
        } // if: saving data from dialog
    } // if: not saving or haven't saved yet

    CBasePropertyPage::DoDataExchange( pDX );

} //*** CDhcpParamsPage::DoDataExchange()

/////////////////////////////////////////////////////////////////////////////
//++
//
//  CDhcpParamsPage::OnInitDialog
//
//  Description:
//      Handler for the WM_INITDIALOG message.
//
//  Arguments:
//      None.
//
//  Return Value:
//      TRUE        We need the focus to be set for us.
//      FALSE       We already set the focus to the proper control.
//
//--
/////////////////////////////////////////////////////////////////////////////
BOOL CDhcpParamsPage::OnInitDialog( void )
{
    HRESULT hr;

    AFX_MANAGE_STATE( AfxGetStaticModuleState() );

    CBasePropertyPage::OnInitDialog();

    // Limit the size of the text that can be entered in edit controls.
    m_editDatabasePath.SetLimitText( _MAX_PATH );
    m_editLogFilePath.SetLimitText( _MAX_PATH );
    m_editBackupPath.SetLimitText( _MAX_PATH );

    // If this is a wizard, make sure the default values are something legal.
    if ( BWizard( ) )
    {
        DWORD    status;
        WCHAR    szValidDevice[ 3 ]; // "X:" + NULL
        DWORD    dwSize = RTL_NUMBER_OF( szValidDevice );

        szValidDevice[ 0 ] = L'\0';
        
        status = ResUtilFindDependentDiskResourceDriveLetter( Peo( )->Hcluster( ), 
                                                              Peo( )->PrdResData( )->m_hresource, 
                                                              szValidDevice, 
                                                              &dwSize 
                                                              );
        szValidDevice[ 2 ] = L'\0';  // Make sure it's valid.

        // Did we find a disk resource in the the dependency list?
        if ( status == ERROR_SUCCESS
          && szValidDevice[ 0 ] != L'\0' )
        {
            WCHAR szFilePath[ MAX_PATH ];

            // If the default is "%SystemRoot%\<something>" then change it to match the
            // dependent resource
            if ( m_editDatabasePath.GetWindowText( szFilePath, MAX_PATH ) >= sizeof(L"%SystemRoot%")/sizeof(WCHAR) - 1
              && ClRtlStrNICmp( szFilePath, L"%SystemRoot%", sizeof(L"%SystemRoot%")/sizeof(WCHAR) - 1 ) == 0 )
            {
                // Start with the new drive letter
                hr = StringCchCopyNW( szFilePath, RTL_NUMBER_OF( szFilePath ), szValidDevice, 3 );
                if ( FAILED( hr ) )
                {
                    goto Cleanup;
                }

                // Is the expanded string really expanded?
                if ( m_strDatabaseExpandedPath[0] != L'%'  )
                {   // yes, then just copy the expanded string minus the drive letter.
                    LPCWSTR psz = m_strDatabaseExpandedPath;
                    psz = wcschr( psz, L':' );
                    if ( psz )
                    {
                        psz++;  // move to next character
                    }
                    else // if: psz
                    {
                        psz = m_strDatabaseExpandedPath;
                    } // else: just cat the whole thing, let the user figure it out.
                    hr = StringCchCatW( szFilePath, RTL_NUMBER_OF( szFilePath ), psz );
                    if ( FAILED( hr ) )
                    {
                        goto Cleanup;
                    }
                }
                else
                {   // no, then strip the %SystemRoot%
                    // find the ending '%'... this must be there because of the strcmp above!
                    LPCWSTR psz = m_strDatabaseExpandedPath;
                    psz = wcschr( psz + 1, L'%' );
                    ASSERT( psz );
                    psz++; // move past the '%'
                    hr = StringCchCatW( szFilePath, RTL_NUMBER_OF( szFilePath ), psz );
                    if ( FAILED( hr ) )
                    {
                        goto Cleanup;
                    }
                }

                m_editDatabasePath.SetWindowText( szFilePath );
            } // if: m_editDatabasePath == %SystemRoot%

            // If the default is "%SystemRoot%\<something>" then change it to match the
            // dependent resource
            if ( m_editLogFilePath.GetWindowText( szFilePath, MAX_PATH ) >= sizeof(L"%SystemRoot%")/sizeof(WCHAR) - 1
              && ClRtlStrNICmp( szFilePath, L"%SystemRoot%", sizeof(L"%SystemRoot%")/sizeof(WCHAR) - 1 ) == 0 )
            {
                // Start with the new drive letter
                hr = StringCchCopyNW( szFilePath, RTL_NUMBER_OF( szFilePath ), szValidDevice, 3 );
                if ( FAILED( hr ) )
                {
                    goto Cleanup;
                }

                // Is the expanded string really expanded?
                if ( m_strLogFileExpandedPath[0] != L'%'  )
                {   // yes, then just copy the expanded string minus the drive letter.
                    LPCWSTR psz = m_strLogFileExpandedPath;
                    psz = wcschr( psz, L':' );
                    if ( psz )
                    {
                        psz++;  // move to next character
                    }
                    else // if: psz
                    {
                        psz = m_strLogFileExpandedPath;
                    } // else: just cat the whole thing, let the user figure it out.
                    hr = StringCchCatW( szFilePath, RTL_NUMBER_OF( szFilePath ), psz );
                    if ( FAILED( hr ) )
                    {
                        goto Cleanup;
                    }
                }
                else
                {   // no, then strip the %SystemRoot%
                    // find the ending '%'... this must be there because of the strcmp above!
                    LPCWSTR psz = m_strLogFileExpandedPath;
                    psz = wcschr( psz + 1, L'%' );
                    ASSERT( psz );
                    psz++; // move past the '%'
                    hr = StringCchCatW( szFilePath, RTL_NUMBER_OF( szFilePath ), psz );
                    if ( FAILED( hr ) )
                    {
                        goto Cleanup;
                    }

                }

                m_editLogFilePath.SetWindowText( szFilePath );
            } // if: m_editLogFilePath == %SystemRoot%
            else if ( szFilePath[0] == L'\0' )
            { // no path found - default to the same as the database path
                m_editDatabasePath.GetWindowText( szFilePath, MAX_PATH );
                m_editLogFilePath.SetWindowText( szFilePath );
            } // else: no log path found

            // If the default is "%SystemRoot%\<something>" then change it to match the
            // dependent resource
            if ( m_editBackupPath.GetWindowText( szFilePath, MAX_PATH ) >= sizeof(L"%SystemRoot%")/sizeof(WCHAR) - 1
              && ClRtlStrNICmp( szFilePath, L"%SystemRoot%", sizeof(L"%SystemRoot%")/sizeof(WCHAR) - 1 ) == 0 )
            {
                // Start with the new drive letter
                hr = StringCchCopyNW( szFilePath, RTL_NUMBER_OF( szFilePath ), szValidDevice, 3 );
                if ( FAILED( hr ) )
                {
                    goto Cleanup;
                }

                // Is the expanded string really expanded?
                if ( m_strBackupExpandedPath[0] != L'%'  )
                {   // yes, then just copy the expanded string minus the drive letter.
                    LPCWSTR psz = m_strBackupExpandedPath;
                    psz = wcschr( psz, L':' );
                    if ( psz )
                    {
                        psz++;  // move to next character
                    }
                    else // if: psz
                    {
                        psz = m_strBackupExpandedPath;
                    } // else: just cat the whole thing, let the user figure it out.
                    hr = StringCchCatW( szFilePath, RTL_NUMBER_OF( szFilePath ), psz );
                    if ( FAILED( hr ) )
                    {
                        goto Cleanup;
                    }
                }
                else
                {   // no, then strip the %SystemRoot%
                    // find the ending '%'... this must be there because of the strcmp above!
                    LPCWSTR psz = m_strBackupExpandedPath;
                    psz = wcschr( psz + 1, L'%' );
                    ASSERT( psz );
                    psz++; // move past the '%'
                    hr = StringCchCatW( szFilePath, RTL_NUMBER_OF( szFilePath ), psz );
                    if ( FAILED( hr ) )
                    {
                        goto Cleanup;
                    }
                }

                m_editBackupPath.SetWindowText( szFilePath );
            } // if: m_editBackupPath == %SystemRoot%

        } // if: found a disk resource

    } // if: in a wizard

Cleanup:

    return TRUE;        // return TRUE unless you set the focus to a control
                        // EXCEPTION: OCX Property Pages should return FALSE

} //*** CDhcpParamsPage::OnInitDialog()

/////////////////////////////////////////////////////////////////////////////
//++
//
//  CDhcpParamsPage::OnSetActive
//
//  Description:
//      Handler for the PSN_SETACTIVE message.
//
//  Arguments:
//      None.
//
//  Return Value:
//      TRUE    Page successfully initialized.
//      FALSE   Page not initialized.
//
//--
/////////////////////////////////////////////////////////////////////////////
BOOL CDhcpParamsPage::OnSetActive( void )
{
    AFX_MANAGE_STATE( AfxGetStaticModuleState() );

    // Enable/disable the Next/Finish button.
    if ( BWizard() )
    {
        EnableNext( BAllRequiredFieldsPresent() );
    } // if: displaying a wizard

    return CBasePropertyPage::OnSetActive();

} //*** CDhcpParamsPage::OnSetActive()

/////////////////////////////////////////////////////////////////////////////
//++
//
//  CDhcpParamsPage::OnChangeRequiredField
//
//  Description:
//      Handler for the EN_CHANGE message on the Share name or Path edit
//      controls.
//
//  Arguments:
//      None.
//
//  Return Value:
//      None.
//
//--
/////////////////////////////////////////////////////////////////////////////
void CDhcpParamsPage::OnChangeRequiredField( void )
{
    AFX_MANAGE_STATE( AfxGetStaticModuleState() );

    OnChangeCtrl();

    if ( BWizard() )
    {
        EnableNext( BAllRequiredFieldsPresent() );
    } // if: displaying a wizard

} //*** CDhcpParamsPage::OnChangeRequiredField()

/////////////////////////////////////////////////////////////////////////////
//++
//
//  CDhcpParamsPage::BAllRequiredFieldsPresent
//
//  Description:
//      Handler for the EN_CHANGE message on the Share name or Path edit
//      controls.
//
//  Arguments:
//      None.
//
//  Return Value:
//      None.
//
//--
/////////////////////////////////////////////////////////////////////////////
BOOL CDhcpParamsPage::BAllRequiredFieldsPresent( void ) const
{
    BOOL    _bPresent;

    if ( 0
        || (m_editDatabasePath.GetWindowTextLength() == 0)
        || (m_editLogFilePath.GetWindowTextLength() == 0)
        || (m_editBackupPath.GetWindowTextLength() == 0)
        )
    {
        _bPresent = FALSE;
    } // if: required field not present
    else
    {
        _bPresent = TRUE;
    } // else: all required fields are present

    return _bPresent;

} //*** CDhcpParamsPage::BAllRequiredFieldsPresent()