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525 lines
12 KiB
525 lines
12 KiB
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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i_legal.c
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Abstract:
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This module performs actions related to the establishment of
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a legal notice to be displayed at logon time.
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Legal notice display is controlled by the value of:
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Key: \Hkey_local_machine\Software\Microsoft\
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Windows NT\CurrentVersion\Winlogon
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Value: [REG_SZ] LegalNoticeText
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Value: [REG_SZ] LegalNoticeCaption
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If either of these contain strings, then a legal notice
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dialog is displayed at logon.
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Author:
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Jim Kelly (JimK) 22-Sep-1994
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Revision History:
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--*/
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#include "Missyp.h"
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///////////////////////////////////////////////////////////////////////
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// //
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// Module-Private Definitions //
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// //
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///////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////
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// //
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// Module-wide variables //
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// //
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///////////////////////////////////////////////////////////////////////
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PSECMGR_AREA_DESCRIPTOR
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MissypLegalNoticeArea;
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PSECMGR_ITEM_DESCRIPTOR
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MissypLegalNoticeItem;
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WCHAR
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MissypLegalNoticeName[SECMGR_MAX_ITEM_NAME_LENGTH],
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MissypLegalNoticeDesc[SECMGR_MAX_ITEM_DESC_LENGTH];
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///////////////////////////////////////////////////////////////////////
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// //
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// Module-Private Prototypes //
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// //
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///////////////////////////////////////////////////////////////////////
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VOID
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MissypMarkLegalNoticeValueCurrent( VOID );
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///////////////////////////////////////////////////////////////////////
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// //
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// Externally callable functions //
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// //
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///////////////////////////////////////////////////////////////////////
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BOOL
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MissypLegalNoticeInitialize(
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IN PSECMGR_AREA_DESCRIPTOR Area,
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IN PSECMGR_ITEM_DESCRIPTOR Item,
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IN ULONG ItemIndex
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)
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/*++
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Routine Description:
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This function is used to initialize this module and fill in the passed Item
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control block.
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Arguments
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Area - the security area which this item is part of.
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Item - points to the item to initialize.
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ItemIndex - The index of the item in the array of items for this area.
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Return Values:
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TRUE - This item has been successfully initialized. However, the
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item value is not yet valid.
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FALSE - we ran into trouble initializing.
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--*/
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{
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//
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// Save away pointers to the area and our item
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//
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MissypLegalNoticeArea = Area;
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MissypLegalNoticeItem = Item;
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//
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// Get the name and description strings
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//
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LoadString( MissyphInstance,
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MISSYP_STRING_ITEM_LEGAL_NOTICE_NAME,
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&MissypLegalNoticeName[0],
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SECMGR_MAX_ITEM_NAME_LENGTH
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);
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LoadString( MissyphInstance,
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MISSYP_STRING_ITEM_LEGAL_NOTICE_DESC,
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&MissypLegalNoticeDesc[0],
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SECMGR_MAX_ITEM_DESC_LENGTH
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);
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//
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// Set the flags as such:
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//
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// Item view editing IS allowed.
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// Area view editing IS allowed.
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// The value is NOT complex - may be displayed in spreadsheet mode.
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// The value is NOT current (has not be retrieved yet).
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//
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Item->Flags = (SECMGR_ITEM_FLAG_AREA_VIEW |
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SECMGR_ITEM_FLAG_ITEM_VIEW);
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//
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// Now the rest of the fields.
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// Value not yet available.
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//
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Item->Area = Area;
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Item->ItemIndex = ItemIndex;
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Item->SecMgrContext = NULL; // Not for our use
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Item->SmedlyContext = NULL; // We don't use this
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Item->Name = &MissypLegalNoticeName[0];
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Item->Description = &MissypLegalNoticeDesc[0];
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Item->Type = SecMgrTypeBool;
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Item->RecommendedValue.Bool = TRUE; // Always recommend a legal notice
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return(TRUE);
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}
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BOOL
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MissypInvokeLegalNotice(
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IN HWND hwnd,
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IN BOOL AllowChanges,
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IN PSECMGR_AREA_DESCRIPTOR Area,
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IN PSECMGR_ITEM_DESCRIPTOR Item
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)
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/*++
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Routine Description:
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This function is used to obtain a view of just the legal notice
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item.
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Arguments
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hwnd - The caller's window. We will put up a child window.
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AllowChanges - If TRUE, value changes are allowed. Otherwise,
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value changes are not allowed.
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Area - Pointer to this Area's descriptor.
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Item - Pointer to our item's descriptor. This will be filled in
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with current values upon exit of this routine.
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Return Values:
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TRUE - The dialog was displayed without error.
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FALSE - we ran into trouble.
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If an error is encountered, then an error popup will be
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displayed by this routine.
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--*/
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{
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DialogBoxParam(MissyphInstance,
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MAKEINTRESOURCE(MISSYP_ID_DLG_ITEM_LEGAL_NOTICE),
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hwnd,
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(DLGPROC)MissypDlgProcLegalNotice,
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(LONG)AllowChanges
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);
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return(TRUE);
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}
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BOOLEAN
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MissypGetLegalNotice(
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HWND hwnd,
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PUNICODE_STRING Caption,
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PUNICODE_STRING Body
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)
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/*++
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Routine Description:
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This function is used to get the current legal notice caption and
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text.
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Arguments
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hwnd - The caller's window. This is used if we need to put
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up an error popup.
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Caption - Points to a unicode string which is to be modified
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to contain the legal notice caption. If there is a caption,
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then the Buffer field of this structure will point to an
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allocated string. The length fields will be appropriately
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set.
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Body - Points to a unicode string which is to be modified
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to contain the legal notice text. If there is a text,
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then the Buffer field of this structure will point to an
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allocated string. The length fields will be appropriately
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set.
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Return Values:
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TRUE - The value has been successfully retrieved.
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FALSE - we ran into trouble querying the current setting.
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If an error is encountered, then an error popup will be
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displayed by this routine.
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--*/
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{
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DWORD
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Length;
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Length = GetProfileString(
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TEXT("Winlogon"),
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TEXT("LegalNoticeCaption"),
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TEXT(""),
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Caption->Buffer,
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Caption->MaximumLength);
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Caption->Length = LOWORD(Length);
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Length = GetProfileString(
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TEXT("Winlogon"),
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TEXT("LegalNoticeText"),
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TEXT(""),
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Body->Buffer,
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Body->MaximumLength);
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Body->Length = LOWORD(Length);
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//
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// Set the enabled/disabled value in our item control block
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//
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if ( (Caption->Length != 0) || (Body->Length != 0) ) {
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MissypLegalNoticeItem->Value.Bool = TRUE;
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} else {
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MissypLegalNoticeItem->Value.Bool = FALSE;
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}
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//
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// Mark the value as current (updating our recommendation in the process).
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//
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MissypMarkLegalNoticeValueCurrent();
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return( TRUE );
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}
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BOOLEAN
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MissypSetLegalNotice(
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HWND hwnd,
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PUNICODE_STRING Caption,
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PUNICODE_STRING Body
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)
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/*++
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Routine Description:
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This function is used to get the current legal notice caption and
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text. If the strings are both zero in length, then they will be
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applied. The result will be that no legal notice will be displayed.
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Arguments
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hwnd - The caller's window. This is used if we need to put
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up an error popup.
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Caption - Points to a unicode string which is to be applied.
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Body - Points to a unicode string which is to be applied.
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Return Values:
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TRUE - The value has been successfully retrieved.
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FALSE - we ran into trouble querying the current setting.
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If an error is encountered, then an error popup will be
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displayed by this routine.
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--*/
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{
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BOOLEAN
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Result;
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Result = WriteProfileString(
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TEXT("Winlogon"),
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TEXT("LegalNoticeCaption"),
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Caption->Buffer);
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if (Result) {
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Result = WriteProfileString(
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TEXT("Winlogon"),
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TEXT("LegalNoticeText"),
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Body->Buffer);
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}
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if (Result) {
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//
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// Set the enabled/disabled value in our item control block
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//
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if ( (Caption->Length != 0) || (Body->Length != 0) ) {
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MissypLegalNoticeItem->Value.Bool = TRUE;
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} else {
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MissypLegalNoticeItem->Value.Bool = FALSE;
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}
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MissypMarkLegalNoticeValueCurrent();
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} else {
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//
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// Put up a pop-up indicating that a problem occured
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//
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MissypPopUp( hwnd, MISSYP_POP_UP_CANT_SET_LEGAL_NOTICE, MISSYP_STRING_TITLE_ERROR);
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}
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return( Result );
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}
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BOOL
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MissypGetLegalNoticeRecommendation(
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IN ULONG SecurityLevel
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)
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/*++
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Routine Description:
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This function returns the recommended "display last name" setting for this
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workstation given a specified security level.
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Arguments
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SecurityLevel - If this value is SECMGR_LEVEL_CURRENT, then the current
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security level known to Missy will be used. Otherwise, the provided
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security level will be used.
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Return Values:
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The recommended setting.
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--*/
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{
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//
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// Always TRUE
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//
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return(TRUE);
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}
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VOID
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MissypUpdateLegalNoticeRecommendation(
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IN PBOOL Recommendation OPTIONAL
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)
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/*++
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Routine Description:
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This function returns the recommended "display last name" setting for this
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workstation given a specified security level.
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Arguments
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SecurityLevel - If this value is SECMGR_LEVEL_CURRENT, then the current
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security level known to Missy will be used. Otherwise, the provided
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security level will be used.
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Return Values:
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The recommended setting.
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--*/
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{
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MissypLegalNoticeItem->Value.Bool = MissypGetLegalNoticeRecommendation( SECMGR_LEVEL_CURRENT );
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//
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// Indicate whether the current value matches the recommended value.
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// Since we always recommend a legal notice, if there isn't one then it is always
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// considered weaker (and so we don't set SECMGR_ITEM_FLAG_VALUE_RECOMMENDED.)
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//
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if (MissypLegalNoticeItem->Value.Bool == MissypLegalNoticeItem->RecommendedValue.Bool) {
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MissypLegalNoticeItem->Flags |= SECMGR_ITEM_FLAG_VALUE_RECOMMENDED; //Recommended value
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} else {
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MissypLegalNoticeItem->Flags &= (~SECMGR_ITEM_FLAG_VALUE_RECOMMENDED); //Not recommended value
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MissypLegalNoticeItem->Flags &= (~SECMGR_ITEM_FLAG_VALUE_STRONGER); //Not stronger
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}
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//
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// return a recommendation if requested
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//
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if (ARGUMENT_PRESENT(Recommendation)) {
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(*Recommendation) = TRUE;
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}
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return;
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}
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///////////////////////////////////////////////////////////////////////
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// //
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// Locally callable functions //
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// //
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///////////////////////////////////////////////////////////////////////
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VOID
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MissypMarkLegalNoticeValueCurrent( VOID )
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/*++
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Routine Description:
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This function updates our recommended flag and sets the LegalNotice value as CURRENT.
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Arguments
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None.
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Return Values:
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None.
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--*/
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{
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MissypUpdateLegalNoticeRecommendation( NULL );
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//
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// Indicate we have a value
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//
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MissypLegalNoticeItem->Flags |= SECMGR_ITEM_FLAG_VALUE_CURRENT;
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return;
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}
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