reactos/rosapps/winfile/network.c

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/*
* ReactOS winfile
*
* network.c
*
* Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <windows.h>
#include <commctrl.h>
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <tchar.h>
#include <process.h>
#include <stdio.h>
#include "main.h"
#include "network.h"
#include "trace.h"
////////////////////////////////////////////////////////////////////////////////
// Global Variables:
//
static HANDLE hNetworkMonitorThreadEvent = NULL; // When this event becomes signaled then we run the monitor thread
static HMODULE hMPR;
static BOOL bNetAvailable = FALSE;
typedef DWORD (WINAPI *WNetCloseEnum_Ptr)(HANDLE);
typedef DWORD (WINAPI *WNetConnectionDialog_Ptr)(HWND, DWORD);
typedef DWORD (WINAPI *WNetDisconnectDialog_Ptr)(HWND, DWORD);
typedef DWORD (WINAPI *WNetConnectionDialog1_Ptr)(LPCONNECTDLGSTRUCT);
typedef DWORD (WINAPI *WNetDisconnectDialog1_Ptr)(LPDISCDLGSTRUCT);
typedef DWORD (WINAPI *WNetEnumResourceA_Ptr)(HANDLE, LPDWORD, LPVOID, LPDWORD);
typedef DWORD (WINAPI *WNetOpenEnumA_Ptr)(DWORD, DWORD, DWORD, LPNETRESOURCE, LPHANDLE);
static WNetCloseEnum_Ptr pWNetCloseEnum;
static WNetConnectionDialog_Ptr pWNetConnectionDialog;
static WNetDisconnectDialog_Ptr pWNetDisconnectDialog;
static WNetConnectionDialog1_Ptr pWNetConnectionDialog1;
static WNetDisconnectDialog1_Ptr pWNetDisconnectDialog1;
static WNetEnumResourceA_Ptr pWNetEnumResource;
static WNetOpenEnumA_Ptr pWNetOpenEnum;
////////////////////////////////////////////////////////////////////////////////
// Local module support methods
//
static BOOL CheckNetworkAvailable(void)
{
hMPR = LoadLibrary(_T("MPR.DLL"));
if (hMPR) {
pWNetCloseEnum = (WNetCloseEnum_Ptr)(FARPROC)GetProcAddress(hMPR, "WNetCloseEnum");
pWNetConnectionDialog = (WNetConnectionDialog_Ptr)(FARPROC)GetProcAddress(hMPR, "WNetConnectionDialog");
pWNetDisconnectDialog = (WNetDisconnectDialog_Ptr)(FARPROC)GetProcAddress(hMPR, "WNetDisconnectDialog");
pWNetConnectionDialog1 = (WNetConnectionDialog1_Ptr)(FARPROC)GetProcAddress(hMPR, "WNetConnectionDialog1");
pWNetDisconnectDialog1 = (WNetDisconnectDialog1_Ptr)(FARPROC)GetProcAddress(hMPR, "WNetDisconnectDialog1");
pWNetEnumResource = (WNetEnumResourceA_Ptr)(FARPROC)GetProcAddress(hMPR, "WNetEnumResourceA");
pWNetOpenEnum = (WNetOpenEnumA_Ptr)(FARPROC)GetProcAddress(hMPR, "WNetOpenEnumA");
// FreeLibrary(hMPR);
bNetAvailable = TRUE;
}
return (hMPR != NULL);
}
static LRESULT CALLBACK EnumNetConnectionsProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
return 0;
}
/*
DWORD WNetOpenEnum(
DWORD dwScope, // scope of enumeration
DWORD dwType, // resource types to list
DWORD dwUsage, // resource usage to list
LPNETRESOURCE lpNetResource, // resource structure
LPHANDLE lphEnum // enumeration handle buffer
);
result = WNetOpenEnum(RESOURCE_CONNECTED, RESOURCETYPE_DISK, RESOURCEUSAGE_ALL, NULL, &EnumNetConnectionsProc);
*/
DWORD MapNetworkDrives(HWND hWnd, BOOL connect)
{
DWORD result = 0L;
if (!bNetAvailable) return result;
#if 1
if (connect) {
pWNetConnectionDialog(hWnd, RESOURCETYPE_DISK);
} else {
pWNetDisconnectDialog(hWnd, RESOURCETYPE_DISK);
}
#else
if (connect) {
NETRESOURCE netResouce;
CONNECTDLGSTRUCT connectDlg;
//netResouce.dwScope;
//netResouce.dwType;
netResouce.dwDisplayType = 0;
//netResouce.dwUsage;
//netResouce.lpLocalName;
//netResouce.lpRemoteName;
//netResouce.lpComment;
//netResouce.lpProvider;
//connectDlg.cbStructure;
connectDlg.hwndOwner = hWnd;
connectDlg.lpConnRes = &netResouce;
//connectDlg.dwFlags;
//connectDlg.dwDevNum;
result = WNetConnectionDialog1(&connectDlg);
} else {
DISCDLGSTRUCT disconnectDlg;
//disconnectDlg.cbStructure;
disconnectDlg.hwndOwner = hWnd;
//disconnectDlg.lpLocalName;
//disconnectDlg.lpRemoteName;
//disconnectDlg.dwFlags;
result = pWNetDisconnectDialog1(&disconnectDlg);
}
#endif
return result;
}
////////////////////////////////////
static void NetErrorHandler(HWND hwnd, DWORD dwResult, LPTSTR str)
{
TRACE(_T("NetErrorHandler(0x%08X) %s\n"), dwResult, str);
}
static void DisplayStruct(HDC hdc, LPNETRESOURCE lpnrLocal)
{
LPTSTR str = NULL;
//TRACE(_T("DisplayStruct(%p)\n"), lpnrLocal);
switch (lpnrLocal->dwScope) {
case RESOURCE_CONNECTED: str = _T("Enumerate currently connected resources. The dwUsage member cannot be specified."); break;
case RESOURCE_GLOBALNET: str = _T("Enumerate all resources on the network. The dwUsage member is specified."); break;
case RESOURCE_REMEMBERED: str = _T("Enumerate remembered (persistent) connections. The dwUsage member cannot be specified."); break;
default: str = _T("Unknown Scope."); break;
}
//TRACE(_T(" %s\n"), str);
switch (lpnrLocal->dwType) {
case RESOURCETYPE_ANY: str = _T("All resources."); break;
case RESOURCETYPE_DISK: str = _T("Disk resources."); break;
case RESOURCETYPE_PRINT: str = _T("Print resources."); break;
default: str = _T("Unknown Type."); break;
}
//TRACE(_T(" %s\n"), str);
switch (lpnrLocal->dwDisplayType) {
case RESOURCEDISPLAYTYPE_DOMAIN: str = _T("The object should be displayed as a domain."); break;
case RESOURCEDISPLAYTYPE_SERVER: str = _T("The object should be displayed as a server."); break;
case RESOURCEDISPLAYTYPE_SHARE: str = _T("The object should be displayed as a share."); break;
case RESOURCEDISPLAYTYPE_GENERIC: str = _T("The method used to display the object does not matter."); break;
default: str = _T("Unknown DisplayType."); break;
}
//TRACE(_T(" %s\n"), str);
// switch (lpnrLocal->dwUsage ) {
// case RESOURCEUSAGE_CONNECTABLE: str = _T("The resource is a connectable resource; the name pointed to by the lpRemoteName member can be passed to the WNetAddConnection function to make a network connection."); break;
// case RESOURCEUSAGE_CONTAINER: str = _T("The resource is a container resource; the name pointed to by the lpRemoteName member can be passed to the WNetOpenEnum function to enumerate the resources in the container."); break;
// default: str = _T("Unknown Usage."); break;
// }
//TRACE(_T("\tLocalName: %s\tRemoteName: %s"), lpnrLocal->lpLocalName, lpnrLocal->lpRemoteName);
//TRACE(_T("\tComment: %s\tProvider: %s\n"), lpnrLocal->lpComment, lpnrLocal->lpProvider);
}
////////////////////////////////////
static BOOL WINAPI EnumerateFunc(HWND hwnd, HDC hdc, LPNETRESOURCE lpnr)
{
DWORD dwResult;
DWORD dwResultEnum;
HANDLE hEnum;
DWORD cbBuffer = 16384; // 16K is a good size
DWORD cEntries = -1; // enumerate all possible entries
LPNETRESOURCE lpnrLocal; // pointer to enumerated structures
DWORD i;
if (!bNetAvailable) return FALSE;
// Call the WNetOpenEnum function to begin the enumeration.
dwResult = pWNetOpenEnum(RESOURCE_GLOBALNET, // all network resources
// RESOURCETYPE_ANY, // all resources
RESOURCETYPE_DISK, // disk resources only, exlude printers
0, // enumerate all resources
lpnr, // NULL first time the function is called
&hEnum); // handle to the resource
if (dwResult != NO_ERROR) {
// Process errors with an application-defined error handler.
NetErrorHandler(hwnd, dwResult, (LPTSTR)_T("WNetOpenEnum"));
return FALSE;
}
// Call the GlobalAlloc function to allocate resources.
lpnrLocal = (LPNETRESOURCE)GlobalAlloc(GPTR, cbBuffer);
do {
// Initialize the buffer.
ZeroMemory(lpnrLocal, cbBuffer);
// Call the WNetEnumResource function to continue the enumeration.
dwResultEnum = pWNetEnumResource(hEnum, // resource handle
&cEntries, // defined locally as -1
lpnrLocal, // LPNETRESOURCE
&cbBuffer); // buffer size
// If the call succeeds, loop through the structures.
if (dwResultEnum == NO_ERROR) {
for (i = 0; i < cEntries; i++) {
// Call an application-defined function to display the contents of the NETRESOURCE structures.
DisplayStruct(hdc, &lpnrLocal[i]);
// If the NETRESOURCE structure represents a container resource, call the EnumerateFunc function recursively.
if (RESOURCEUSAGE_CONTAINER == (lpnrLocal[i].dwUsage & RESOURCEUSAGE_CONTAINER))
if (!EnumerateFunc(hwnd, hdc, &lpnrLocal[i])) {
//TextOut(hdc, 10, 10, _T("EnumerateFunc returned FALSE."), 29);
TRACE(_T("EnumerateFunc returned FALSE.\n"));
}
}
}
// Process errors.
else if (dwResultEnum != ERROR_NO_MORE_ITEMS) {
NetErrorHandler(hwnd, dwResultEnum, (LPTSTR)_T("WNetEnumResource"));
break;
}
}
// End do.
while (dwResultEnum != ERROR_NO_MORE_ITEMS);
// Call the GlobalFree function to free the memory.
GlobalFree((HGLOBAL)lpnrLocal);
// Call WNetCloseEnum to end the enumeration.
dwResult = pWNetCloseEnum(hEnum);
if (dwResult != NO_ERROR) {
// Process errors.
NetErrorHandler(hwnd, dwResult, (LPTSTR)_T("WNetCloseEnum"));
return FALSE;
}
return TRUE;
}
/*
DWORD WNetConnectionDialog(
HWND hwnd, // handle to window owning dialog box
DWORD dwType // resource type
);
DWORD WNetAddConnection(
LPCTSTR lpRemoteName, // network device name
LPCTSTR lpPassword, // password
LPCTSTR lpLocalName // local device name
);
DWORD WNetOpenEnum(
DWORD dwScope, // scope of enumeration
DWORD dwType, // resource types to list
DWORD dwUsage, // resource usage to list
LPNETRESOURCE lpNetResource, // resource structure
LPHANDLE lphEnum // enumeration handle buffer
);
*/
////////////////////////////////////////////////////////////////////////////////
void NetworkMonitorThreadProc(void *lpParameter)
{
// ULONG OldProcessorUsage = 0;
// ULONG OldProcessCount = 0;
HWND hWnd = (HWND)lpParameter;
// Create the event
hNetworkMonitorThreadEvent = CreateEvent(NULL, TRUE, TRUE, _T("Winfile Network Monitor Event"));
// If we couldn't create the event then exit the thread
if (!hNetworkMonitorThreadEvent)
return;
while (1) {
DWORD dwWaitVal;
// Wait on the event
dwWaitVal = WaitForSingleObject(hNetworkMonitorThreadEvent, INFINITE);
// If the wait failed then the event object must have been
// closed and the task manager is exiting so exit this thread
if (dwWaitVal == WAIT_FAILED) {
// CloseHandle(hNetworkMonitorThreadEvent); // Should we close the event object handle or not ???
// hNetworkMonitorThreadEvent = NULL; // if we do then check what happens when main thread tries to delete it also....
return;
}
if (dwWaitVal == WAIT_OBJECT_0) {
// Reset our event
ResetEvent(hNetworkMonitorThreadEvent);
if ( EnumerateFunc(hWnd, NULL, NULL) ) {
}
#if 0
TCHAR text[260];
if ((ULONG)SendMessage(hProcessPageListCtrl, LVM_GETITEMCOUNT, 0, 0) != PerfDataGetProcessCount())
SendMessage(hProcessPageListCtrl, LVM_SETITEMCOUNT, PerfDataGetProcessCount(), /*LVSICF_NOINVALIDATEALL|*/LVSICF_NOSCROLL);
if (IsWindowVisible(hProcessPage))
InvalidateRect(hProcessPageListCtrl, NULL, FALSE);
if (OldProcessorUsage != PerfDataGetProcessorUsage()) {
OldProcessorUsage = PerfDataGetProcessorUsage();
wsprintf(text, _T("CPU Usage: %3d%%"), OldProcessorUsage);
SendMessage(hStatusWnd, SB_SETTEXT, 1, (LPARAM)text);
}
if (OldProcessCount != PerfDataGetProcessCount()) {
OldProcessCount = PerfDataGetProcessCount();
wsprintf(text, _T("Processes: %d"), OldProcessCount);
SendMessage(hStatusWnd, SB_SETTEXT, 0, (LPARAM)text);
}
#endif
}
}
}
BOOL CreateNetworkMonitorThread(HWND hWnd)
{
CheckNetworkAvailable();
_beginthread(NetworkMonitorThreadProc, 0, hWnd);
return TRUE;
}
void SignalNetworkMonitorEvent(void)
{
SetEvent(hNetworkMonitorThreadEvent);
}
BOOL DestryNetworkMonitorThread(void)
{
CloseHandle(hNetworkMonitorThreadEvent);
hNetworkMonitorThreadEvent = NULL;
return TRUE;
}