354 lines
11 KiB
C++
354 lines
11 KiB
C++
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/**********************************************************************/
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/** Microsoft LAN Manager **/
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/** Copyright(c) Microsoft Corp., 1990, 1991 **/
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/**********************************************************************/
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/*
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mprenum.cxx
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Contains EnumerateShow.
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FILE HISTORY:
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Yi-HsinS 04-Mar-1993 Separated from mprbrows.cxx
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*/
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#define INCL_NETERRORS
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#define INCL_DOSERRORS
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#define INCL_WINDOWS
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#define INCL_NETLIB
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#define INCL_NETWKSTA
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#include <lmui.hxx>
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#define INCL_BLT_DIALOG
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#define INCL_BLT_CONTROL
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#define INCL_BLT_MSGPOPUP
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#include <blt.hxx>
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#include <string.hxx>
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#include <uitrace.hxx>
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#include <dbgstr.hxx>
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#include <uibuffer.hxx>
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#include <mprbrows.hxx>
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#define MPRDBG(x) { ; }
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#define MPRDBGEOL(x) { ; }
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// prototype
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APIERR EnumerateShowHelp(
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HANDLE hEnum,
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MPR_LBI **ppmprlbiParent,
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MPR_LBI_CACHE *plbicache,
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LPNETRESOURCE lpNetResource,
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MPR_LBI *pmprlbi,
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MPR_HIER_LISTBOX *pmprlb,
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BOOL fDeleteChildren,
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BOOL *pfSearchDialogUsed );
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/*******************************************************************
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NAME: ::EnumerateShow
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SYNOPSIS: Enumerate the requested data
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(providers, containers or connectable items).
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(1) If the listbox passed in is not NULL,
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then the data is added in the listbox
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(2) If the listbox is NULL,
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then return the data in the MPR_LBI_CACHE
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ENTRY: uiScope - Scope for enumeration (see WNetOpenEnum)
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uiType - Type of enumeration (see WNetOpenEnum)
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uiUsage - Usage of enumeration (see WNetOpenEnum)
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lpNetResource - Net resource (see WNetOpenEnum)
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pmprlbi - Parent LBI to add enumeration to
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pmprlb - Pointer to the MPR_HIER_LISTBOX
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fDeleteChildren - TRUE if we need to delete the children
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pfSearchDialogUsed
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ppmprlbicache
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EXIT:
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RETURNS:
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NOTES:
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HISTORY:
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Johnl 22-Jan-1992 Broke out from dialog, commented, fixed
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YiHsinS 04-Mar-1993 Support multithread
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********************************************************************/
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APIERR EnumerateShow( HWND hwndOwner,
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UINT uiScope,
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UINT uiType,
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UINT uiUsage,
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LPNETRESOURCE lpNetResource,
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MPR_LBI *pmprlbi,
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MPR_HIER_LISTBOX *pmprlb,
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BOOL fDeleteChildren,
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BOOL *pfSearchDialogUsed,
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MPR_LBI_CACHE **ppmprlbicache )
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{
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UIASSERT( WN_SUCCESS == NERR_Success );
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if ( ppmprlbicache != NULL )
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*ppmprlbicache = NULL;
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APIERR err = NERR_Success;
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MPR_LBI *pmprlbiParent = pmprlbi;
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MPR_LBI_CACHE *plbicache = new MPR_LBI_CACHE();
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if ( ( plbicache == NULL )
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|| (( err = plbicache->QueryError()) != NERR_Success )
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)
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{
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if ( err != NERR_Success )
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delete plbicache;
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return (err? err : ERROR_NOT_ENOUGH_MEMORY);
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}
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HANDLE hEnum;
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err = WNetOpenEnum(uiScope, uiType, uiUsage, lpNetResource, &hEnum);
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if ((err != WN_SUCCESS) && (hwndOwner != NULL))
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{
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//
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// If hwndOwner is NULL, we shouldn't put any UI.
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//
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//
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// If it failed because you are not authenticated yet,
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// we need to let the user loggin to this network resource.
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//
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if (err == WN_NOT_AUTHENTICATED
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|| err == ERROR_LOGON_FAILURE
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|| err == WN_BAD_PASSWORD
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|| err == WN_ACCESS_DENIED
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)
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{
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// Retry with password dialog box.
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err = WNetAddConnection3(hwndOwner, lpNetResource, NULL, NULL,
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CONNECT_TEMPORARY | CONNECT_INTERACTIVE);
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if (err == WN_SUCCESS)
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{
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// Retry WNetOpenEnum.
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err = WNetOpenEnum(uiScope, uiType, uiUsage, lpNetResource, &hEnum);
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}
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}
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}
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if (err == WN_SUCCESS)
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{
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err = EnumerateShowHelp(
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hEnum,
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&pmprlbiParent,
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plbicache,
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lpNetResource,
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pmprlbi,
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pmprlb,
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fDeleteChildren,
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pfSearchDialogUsed );
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WNetCloseEnum( hEnum );
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}
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else
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{
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// probable errors: WN_NO_NETWORK, WN_EXTENDED_ERROR, WN_BAD_VALUE,
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// WN_NOT_CONTAINER
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MPRDBGEOL( SZ("EnumerateShow OpenEnum > ") << (ULONG) err );
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}
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//
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// Add all of the items in a single block to avoid the n^2 sort that would
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// be done if they were added individually
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//
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if ( plbicache->QueryCount() > 0 )
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{
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plbicache->Sort();
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if ( pmprlb != NULL )
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{
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pmprlb->SetRedraw( FALSE );
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pmprlb->AddSortedItems( (HIER_LBI**) plbicache->QueryPtr(),
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plbicache->QueryCount(),
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pmprlbiParent );
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pmprlb->SetRedraw( TRUE );
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pmprlb->Invalidate();
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delete plbicache;
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plbicache = NULL;
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}
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else
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{
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UIASSERT( ppmprlbicache != NULL );
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*ppmprlbicache = plbicache;
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}
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}
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else
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{
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// nothing there and it isn't returned; delete the cache.
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delete plbicache;
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plbicache = NULL;
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}
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return err;
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} // ::EnumerateShow
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/*******************************************************************
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NAME: ::EnumerateShowHelp
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SYNOPSIS: A helper function for EnumerateShow. It handles the
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actual enumeration.
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ENTRY:
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hEnum - enumeration handle from WNetOpenEnum
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ppmprlbiParent - parent LBI
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plbicache - the cache to put elements in
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lpNetResource - Net resource of container (see WNetOpenEnum)
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pmprlbi - Parent LBI to add enumeration to
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pmprlb - Pointer to the MPR_HIER_LISTBOX
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fDeleteChildren - TRUE if we need to delete the children
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pfSearchDialogUsed
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EXIT:
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RETURNS:
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NOTES:
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HISTORY:
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BruceFo 13-Sep-1995 Split from EnumerateShow for readability
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********************************************************************/
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APIERR EnumerateShowHelp(
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HANDLE hEnum,
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MPR_LBI **ppmprlbiParent,
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MPR_LBI_CACHE *plbicache,
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LPNETRESOURCE lpNetResource,
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MPR_LBI *pmprlbi,
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MPR_HIER_LISTBOX *pmprlb,
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BOOL fDeleteChildren,
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BOOL *pfSearchDialogUsed )
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{
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BUFFER buf( 1024 );
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DWORD err;
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DWORD dwEnumErr = buf.QueryError() ;
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while ( dwEnumErr == NERR_Success )
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{
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DWORD dwCount = 0xffffffff; // Return as many as possible
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DWORD dwBuffSize = buf.QuerySize() ;
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dwEnumErr = WNetEnumResource( hEnum,
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&dwCount,
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buf.QueryPtr(),
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&dwBuffSize );
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MPRDBGEOL( SZ("EnumerateShow EnumResource >") << (ULONG) dwEnumErr ) ;
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switch ( dwEnumErr )
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{
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case WN_SUCCESS:
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case WN_NO_MORE_ENTRIES: // Success code, map below
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if ( fDeleteChildren )
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{
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UIASSERT( pmprlb != NULL );
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pmprlb->SetRedraw( FALSE );
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fDeleteChildren = FALSE;
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pmprlb->DeleteChildren( pmprlbi );
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MPR_LBI * pmprlbiTemp = new MPR_LBI( lpNetResource );
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if ( ( pmprlbiTemp == NULL )
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|| ( err = pmprlbiTemp->QueryError() )
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)
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{
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delete pmprlbiTemp;
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pmprlbiTemp = NULL;
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dwEnumErr = err ? err : ERROR_NOT_ENOUGH_MEMORY;
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break;
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}
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if ( pmprlb->AddItem( pmprlbiTemp, pmprlbi ) < 0 )
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{
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// AddItem has already deleted the item we're trying
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// to add, if it returns -1: don't delete it again.
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pmprlbiTemp = NULL;
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dwEnumErr = ERROR_NOT_ENOUGH_MEMORY;
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break;
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}
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*ppmprlbiParent = pmprlbiTemp;
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pmprlb->SetRedraw( TRUE );
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}
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if ( dwEnumErr == WN_SUCCESS )
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{
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//
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// Add the Entries to the listbox with parent pmprlbi
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//
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MPRDBGEOL( SZ("EnumerateShow ")
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<< (ULONG) dwCount << SZ(" Entries returned "));
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NETRESOURCE *pnetres = (NETRESOURCE * )buf.QueryPtr();
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for (INT i = 0; dwCount ; dwCount--, i++ )
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{
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if ( err = plbicache->AppendItem(
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new MPR_LBI( &(pnetres[i])))
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)
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{
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dwEnumErr = err ;
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break ;
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}
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// if we are at top (lpNetResource==NULL) and
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// we've been given a valid pfSearchDialogUsed
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// pointer, then we go figure out if we need
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// to display the "Search..." button.
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if (lpNetResource == NULL &&
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pfSearchDialogUsed != NULL)
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{
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if (::WNetGetSearchDialog(
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pnetres[i].lpProvider) != NULL)
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{
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*pfSearchDialogUsed = TRUE ;
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}
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}
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}
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}
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break ;
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/* The buffer wasn't big enough for even one entry,
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* resize it and try again.
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*/
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case WN_MORE_DATA:
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if ( dwEnumErr = buf.Resize( buf.QuerySize()*2 ))
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break;
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/*
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* Continue looping
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*/
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dwEnumErr = WN_SUCCESS;
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break;
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case WN_EXTENDED_ERROR:
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case WN_NO_NETWORK:
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break;
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default:
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MPRDBGEOL(SZ("EnumerateConnections - Unexpected return code from WNetEnumResource"));
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break;
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} // switch
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} // while
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UIASSERT( sizeof(APIERR) == sizeof( DWORD ));
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return (dwEnumErr==WN_NO_MORE_ENTRIES ) ? NERR_Success : dwEnumErr;
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} // ::EnumerateShowHelp
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