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[wxWidgets.git] / src / msw / dialup.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: msw/dialup.cpp
3 // Purpose: MSW implementation of network/dialup classes and functions
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 07.07.99
7 // RCS-ID: $Id$
8 // Copyright: (c) Vadim Zeitlin
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // for compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 // these functions require Win32
28 #if defined(__WIN16__) && wxUSE_DIALUP_MANAGER
29 #undef wxUSE_DIALUP_MANAGER
30 #define wxUSE_DIALUP_MANAGER 0
31 #endif // wxUSE_DIALUP_MANAGER && Win16
32
33 #if wxUSE_DIALUP_MANAGER
34
35 #ifndef WX_PRECOMP
36 #include "wx/log.h"
37 #include "wx/intl.h"
38 #include "wx/event.h"
39 #endif
40
41 #include "wx/msw/private.h" // must be before #include "dynlib.h"
42
43 #if !wxUSE_DYNLIB_CLASS
44 #error You need wxUSE_DYNLIB_CLASS to be 1 to compile dialup.cpp.
45 #endif
46
47 #include "wx/dynlib.h"
48
49 #include "wx/dialup.h"
50
51 // Doesn't yet compile under VC++ 4, BC++, mingw, Watcom C++: no wininet.h
52 #if !defined(__BORLANDC__) && !defined(__GNUWIN32_OLD__) && !defined(__GNUWIN32__) && !defined(__WATCOMC__) && ! (defined(__VISUALC__) && (__VISUALC__ < 1020))
53
54 #include <ras.h>
55 #include <raserror.h>
56
57 #include <wininet.h>
58
59 // Not in VC++ 5
60 #ifndef INTERNET_CONNECTION_LAN
61 #define INTERNET_CONNECTION_LAN 2
62 #endif
63 #ifndef INTERNET_CONNECTION_PROXY
64 #define INTERNET_CONNECTION_PROXY 4
65 #endif
66
67 // ----------------------------------------------------------------------------
68 // constants
69 // ----------------------------------------------------------------------------
70
71 // this message is sent by the secondary thread when RAS status changes
72 #define wxWM_RAS_STATUS_CHANGED (WM_USER + 10010)
73 #define wxWM_RAS_DIALING_PROGRESS (WM_USER + 10011)
74
75 // ----------------------------------------------------------------------------
76 // types
77 // ----------------------------------------------------------------------------
78
79 // the signatures of RAS functions: all this is quite heavy, but we must do it
80 // to allow running wxWin programs on machine which don't have RAS installed
81 // (this does exist) - if we link with rasapi32.lib, the program will fail on
82 // startup because of the missing DLL...
83
84 #ifndef UNICODE
85 typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCSTR, LPRASDIALPARAMSA, DWORD, LPVOID, LPHRASCONN );
86 typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNA, LPDWORD, LPDWORD );
87 typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCSTR, LPCSTR, LPRASENTRYNAMEA, LPDWORD, LPDWORD );
88 typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSA );
89 typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPSTR, DWORD );
90 typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
91 typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
92 typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCSTR );
93 typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCSTR, LPCSTR );
94 typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, BOOL );
95 typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, LPBOOL );
96 typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOA, LPDWORD, LPDWORD );
97 typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOA, LPDWORD );
98 typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, LPDWORD, LPBYTE, LPDWORD );
99 typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, DWORD, LPBYTE, DWORD );
100 typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCSTR, LPCSTR, LPCSTR );
101 typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCSTR, LPCSTR );
102 typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCSTR, LPCSTR );
103 typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
104
105 static const wxChar gs_funcSuffix = _T('A');
106 #else // Unicode
107 typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCWSTR, LPRASDIALPARAMSW, DWORD, LPVOID, LPHRASCONN );
108 typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNW, LPDWORD, LPDWORD );
109 typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCWSTR, LPCWSTR, LPRASENTRYNAMEW, LPDWORD, LPDWORD );
110 typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSW );
111 typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPWSTR, DWORD );
112 typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
113 typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
114 typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCWSTR );
115 typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCWSTR, LPCWSTR );
116 typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, BOOL );
117 typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, LPBOOL );
118 typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOW, LPDWORD, LPDWORD );
119 typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOW, LPDWORD );
120 typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, LPDWORD, LPBYTE, LPDWORD );
121 typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, DWORD, LPBYTE, DWORD );
122 typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCWSTR, LPCWSTR, LPCWSTR );
123 typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCWSTR, LPCWSTR );
124 typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCWSTR, LPCWSTR );
125 typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
126
127 static const wxChar gs_funcSuffix = _T('W');
128 #endif // ASCII/Unicode
129
130 // structure passed to the secondary thread
131 struct WXDLLEXPORT wxRasThreadData
132 {
133 wxRasThreadData()
134 {
135 hWnd = 0;
136 hEventRas = hEventQuit = INVALID_HANDLE_VALUE;
137 dialUpManager = NULL;
138 }
139
140 HWND hWnd; // window to send notifications to
141 HANDLE hEventRas, // event which RAS signals when status changes
142 hEventQuit; // event which we signal when we terminate
143
144 class WXDLLEXPORT wxDialUpManagerMSW *dialUpManager; // the owner
145 };
146
147 // ----------------------------------------------------------------------------
148 // wxDialUpManager class for MSW
149 // ----------------------------------------------------------------------------
150
151 class WXDLLEXPORT wxDialUpManagerMSW : public wxDialUpManager
152 {
153 public:
154 // ctor & dtor
155 wxDialUpManagerMSW();
156 virtual ~wxDialUpManagerMSW();
157
158 // implement base class pure virtuals
159 virtual bool IsOk() const;
160 virtual size_t GetISPNames(wxArrayString& names) const;
161 virtual bool Dial(const wxString& nameOfISP,
162 const wxString& username,
163 const wxString& password,
164 bool async);
165 virtual bool IsDialing() const;
166 virtual bool CancelDialing();
167 virtual bool HangUp();
168 virtual bool IsAlwaysOnline() const;
169 virtual bool IsOnline() const;
170 virtual void SetOnlineStatus(bool isOnline = TRUE);
171 virtual bool EnableAutoCheckOnlineStatus(size_t nSeconds);
172 virtual void DisableAutoCheckOnlineStatus();
173 virtual void SetWellKnownHost(const wxString& hostname, int port);
174 virtual void SetConnectCommand(const wxString& commandDial,
175 const wxString& commandHangup);
176
177 // for RasTimer
178 void CheckRasStatus();
179
180 // for wxRasStatusWindowProc
181 void OnConnectStatusChange();
182 void OnDialProgress(RASCONNSTATE rasconnstate, DWORD dwError);
183
184 // for wxRasDialFunc
185 static HWND GetRasWindow() { return ms_hwndRas; }
186 static wxDialUpManagerMSW *GetDialer() { return ms_dialer; }
187
188 private:
189 // return the error string for the given RAS error code
190 static wxString GetErrorString(DWORD error);
191
192 // find the (first) handle of the active connection
193 static HRASCONN FindActiveConnection();
194
195 // notify the application about status change
196 void NotifyApp(bool connected, bool fromOurselves = FALSE) const;
197
198 // destroy the thread data and the thread itself
199 void CleanUpThreadData();
200
201 // timer used for polling RAS status
202 class WXDLLEXPORT RasTimer : public wxTimer
203 {
204 public:
205 RasTimer(wxDialUpManagerMSW *dialUpManager)
206 { m_dialUpManager = dialUpManager; }
207
208 virtual void Notify() { m_dialUpManager->CheckRasStatus(); }
209
210 private:
211 wxDialUpManagerMSW *m_dialUpManager;
212 } m_timerStatusPolling;
213
214 // thread handle for the thread sitting on connection change event
215 HANDLE m_hThread;
216
217 // data used by this thread and our hidden window to send messages between
218 // each other
219 wxRasThreadData m_data;
220
221 // the hidden window we use for passing messages between threads
222 static HWND ms_hwndRas;
223
224 // the handle of the connection we initiated or 0 if none
225 static HRASCONN ms_hRasConnection;
226
227 // the use count of rasapi32.dll
228 static int ms_nDllCount;
229
230 // the handle of rasapi32.dll when it's loaded
231 static wxDllType ms_dllRas;
232
233 // the pointers to RAS functions
234 static RASDIAL ms_pfnRasDial;
235 static RASENUMCONNECTIONS ms_pfnRasEnumConnections;
236 static RASENUMENTRIES ms_pfnRasEnumEntries;
237 static RASGETCONNECTSTATUS ms_pfnRasGetConnectStatus;
238 static RASGETERRORSTRING ms_pfnRasGetErrorString;
239 static RASHANGUP ms_pfnRasHangUp;
240 static RASGETPROJECTIONINFO ms_pfnRasGetProjectionInfo;
241 static RASCREATEPHONEBOOKENTRY ms_pfnRasCreatePhonebookEntry;
242 static RASEDITPHONEBOOKENTRY ms_pfnRasEditPhonebookEntry;
243 static RASSETENTRYDIALPARAMS ms_pfnRasSetEntryDialParams;
244 static RASGETENTRYDIALPARAMS ms_pfnRasGetEntryDialParams;
245 static RASENUMDEVICES ms_pfnRasEnumDevices;
246 static RASGETCOUNTRYINFO ms_pfnRasGetCountryInfo;
247 static RASGETENTRYPROPERTIES ms_pfnRasGetEntryProperties;
248 static RASSETENTRYPROPERTIES ms_pfnRasSetEntryProperties;
249 static RASRENAMEENTRY ms_pfnRasRenameEntry;
250 static RASDELETEENTRY ms_pfnRasDeleteEntry;
251 static RASVALIDATEENTRYNAME ms_pfnRasValidateEntryName;
252
253 // this function is not supported by Win95
254 static RASCONNECTIONNOTIFICATION ms_pfnRasConnectionNotification;
255
256 // if this flag is different from -1, it overrides IsOnline()
257 static int ms_userSpecifiedOnlineStatus;
258
259 // this flag tells us if we're online
260 static int ms_isConnected;
261
262 // this flag is the result of the call to IsAlwaysOnline() (-1 if not
263 // called yet)
264 static int ms_isAlwaysOnline;
265
266 // this flag tells us whether a call to RasDial() is in progress
267 static wxDialUpManagerMSW *ms_dialer;
268 };
269
270 // ----------------------------------------------------------------------------
271 // private functions
272 // ----------------------------------------------------------------------------
273
274 static LRESULT WINAPI wxRasStatusWindowProc(HWND hWnd, UINT message,
275 WPARAM wParam, LPARAM lParam);
276
277 static DWORD wxRasMonitorThread(wxRasThreadData *data);
278
279 static void WINAPI wxRasDialFunc(UINT unMsg,
280 RASCONNSTATE rasconnstate,
281 DWORD dwError);
282
283 // ============================================================================
284 // implementation
285 // ============================================================================
286
287 // ----------------------------------------------------------------------------
288 // init the static variables
289 // ----------------------------------------------------------------------------
290
291 HRASCONN wxDialUpManagerMSW::ms_hRasConnection = 0;
292
293 HWND wxDialUpManagerMSW::ms_hwndRas = 0;
294
295 int wxDialUpManagerMSW::ms_nDllCount = 0;
296 wxDllType wxDialUpManagerMSW::ms_dllRas = 0;
297
298 RASDIAL wxDialUpManagerMSW::ms_pfnRasDial = 0;
299 RASENUMCONNECTIONS wxDialUpManagerMSW::ms_pfnRasEnumConnections = 0;
300 RASENUMENTRIES wxDialUpManagerMSW::ms_pfnRasEnumEntries = 0;
301 RASGETCONNECTSTATUS wxDialUpManagerMSW::ms_pfnRasGetConnectStatus = 0;
302 RASGETERRORSTRING wxDialUpManagerMSW::ms_pfnRasGetErrorString = 0;
303 RASHANGUP wxDialUpManagerMSW::ms_pfnRasHangUp = 0;
304 RASGETPROJECTIONINFO wxDialUpManagerMSW::ms_pfnRasGetProjectionInfo = 0;
305 RASCREATEPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasCreatePhonebookEntry = 0;
306 RASEDITPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasEditPhonebookEntry = 0;
307 RASSETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasSetEntryDialParams = 0;
308 RASGETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasGetEntryDialParams = 0;
309 RASENUMDEVICES wxDialUpManagerMSW::ms_pfnRasEnumDevices = 0;
310 RASGETCOUNTRYINFO wxDialUpManagerMSW::ms_pfnRasGetCountryInfo = 0;
311 RASGETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasGetEntryProperties = 0;
312 RASSETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasSetEntryProperties = 0;
313 RASRENAMEENTRY wxDialUpManagerMSW::ms_pfnRasRenameEntry = 0;
314 RASDELETEENTRY wxDialUpManagerMSW::ms_pfnRasDeleteEntry = 0;
315 RASVALIDATEENTRYNAME wxDialUpManagerMSW::ms_pfnRasValidateEntryName = 0;
316 RASCONNECTIONNOTIFICATION wxDialUpManagerMSW::ms_pfnRasConnectionNotification = 0;
317
318 int wxDialUpManagerMSW::ms_userSpecifiedOnlineStatus = -1;
319 int wxDialUpManagerMSW::ms_isConnected = -1;
320 int wxDialUpManagerMSW::ms_isAlwaysOnline = -1;
321 wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
322
323 // ----------------------------------------------------------------------------
324 // ctor and dtor: the dynamic linking happens here
325 // ----------------------------------------------------------------------------
326
327 // the static creator function is implemented here
328 wxDialUpManager *wxDialUpManager::Create()
329 {
330 return new wxDialUpManagerMSW;
331 }
332
333 #ifdef __VISUALC__
334 // warning about "'this' : used in base member initializer list" - so what?
335 #pragma warning(disable:4355)
336 #endif // VC++
337
338 wxDialUpManagerMSW::wxDialUpManagerMSW()
339 : m_timerStatusPolling(this)
340 {
341 // initialize our data
342 m_hThread = 0;
343
344 if ( !ms_nDllCount++ )
345 {
346 // load the RAS library
347 ms_dllRas = wxDllLoader::LoadLibrary("RASAPI32");
348 if ( !ms_dllRas )
349 {
350 wxLogError(_("Dial up functions are unavailable because the remote access service (RAS) is not installed on this machine. Please install it."));
351 }
352 else
353 {
354 // resolve the functions we need
355
356 // this will contain the name of the function we failed to resolve
357 // if any at the end
358 const char *funcName = NULL;
359
360 // get the function from rasapi32.dll and abort if it's not found
361 #define RESOLVE_RAS_FUNCTION(type, name) \
362 ms_pfn##name = (type)wxDllLoader::GetSymbol(ms_dllRas, \
363 wxString(_T(#name)) + gs_funcSuffix); \
364 if ( !ms_pfn##name ) \
365 { \
366 funcName = #name; \
367 goto exit; \
368 }
369
370 // a variant of above macro which doesn't abort if the function is
371 // not found in the DLL
372 #define RESOLVE_OPTIONAL_RAS_FUNCTION(type, name) \
373 ms_pfn##name = (type)wxDllLoader::GetSymbol(ms_dllRas, \
374 wxString(_T(#name)) + gs_funcSuffix);
375
376 RESOLVE_RAS_FUNCTION(RASDIAL, RasDial);
377 RESOLVE_RAS_FUNCTION(RASENUMCONNECTIONS, RasEnumConnections);
378 RESOLVE_RAS_FUNCTION(RASENUMENTRIES, RasEnumEntries);
379 RESOLVE_RAS_FUNCTION(RASGETCONNECTSTATUS, RasGetConnectStatus);
380 RESOLVE_RAS_FUNCTION(RASGETERRORSTRING, RasGetErrorString);
381 RESOLVE_RAS_FUNCTION(RASHANGUP, RasHangUp);
382 RESOLVE_RAS_FUNCTION(RASGETENTRYDIALPARAMS, RasGetEntryDialParams);
383
384 // suppress wxDllLoader messages about missing (non essential)
385 // functions
386 {
387 wxLogNull noLog;
388
389 RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETPROJECTIONINFO, RasGetProjectionInfo);
390 RESOLVE_OPTIONAL_RAS_FUNCTION(RASCREATEPHONEBOOKENTRY, RasCreatePhonebookEntry);
391 RESOLVE_OPTIONAL_RAS_FUNCTION(RASEDITPHONEBOOKENTRY, RasEditPhonebookEntry);
392 RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYDIALPARAMS, RasSetEntryDialParams);
393 RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETENTRYPROPERTIES, RasGetEntryProperties);
394 RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYPROPERTIES, RasSetEntryProperties);
395 RESOLVE_OPTIONAL_RAS_FUNCTION(RASRENAMEENTRY, RasRenameEntry);
396 RESOLVE_OPTIONAL_RAS_FUNCTION(RASDELETEENTRY, RasDeleteEntry);
397 RESOLVE_OPTIONAL_RAS_FUNCTION(RASVALIDATEENTRYNAME, RasValidateEntryName);
398 RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETCOUNTRYINFO, RasGetCountryInfo);
399 RESOLVE_OPTIONAL_RAS_FUNCTION(RASENUMDEVICES, RasEnumDevices);
400 RESOLVE_OPTIONAL_RAS_FUNCTION(RASCONNECTIONNOTIFICATION, RasConnectionNotification);
401 }
402
403 // keep your preprocessor name space clean
404 #undef RESOLVE_RAS_FUNCTION
405 #undef RESOLVE_OPTIONAL_RAS_FUNCTION
406
407 exit:
408 if ( funcName )
409 {
410 static const wxChar *msg = wxTRANSLATE(
411 "The version of remote access service (RAS) installed on this machine is too\
412 old, please upgrade (the following required function is missing: %s)."
413 );
414
415 wxLogError(wxGetTranslation(msg), funcName);
416
417 wxDllLoader::UnloadLibrary(ms_dllRas);
418 ms_dllRas = 0;
419 ms_nDllCount = 0;
420
421 return;
422 }
423 }
424 }
425
426 // enable auto check by default
427 EnableAutoCheckOnlineStatus(0);
428 }
429
430 wxDialUpManagerMSW::~wxDialUpManagerMSW()
431 {
432 CleanUpThreadData();
433
434 if ( !--ms_nDllCount )
435 {
436 // unload the RAS library
437 wxDllLoader::UnloadLibrary(ms_dllRas);
438 ms_dllRas = 0;
439 }
440 }
441
442 // ----------------------------------------------------------------------------
443 // helper functions
444 // ----------------------------------------------------------------------------
445
446 wxString wxDialUpManagerMSW::GetErrorString(DWORD error)
447 {
448 wxChar buffer[512]; // this should be more than enough according to MS docs
449 DWORD dwRet = ms_pfnRasGetErrorString(error, buffer, WXSIZEOF(buffer));
450 switch ( dwRet )
451 {
452 case ERROR_INVALID_PARAMETER:
453 // this was a standard Win32 error probably
454 return wxString(wxSysErrorMsg(error));
455
456 default:
457 {
458 wxLogSysError(dwRet,
459 _("Failed to retrieve text of RAS error message"));
460
461 wxString msg;
462 msg.Printf(_("unknown error (error code %08x)."), error);
463 return msg;
464 }
465
466 case 0:
467 // we want the error message to start from a lower case letter
468 buffer[0] = wxTolower(buffer[0]);
469
470 return wxString(buffer);
471 }
472 }
473
474 HRASCONN wxDialUpManagerMSW::FindActiveConnection()
475 {
476 // enumerate connections
477 DWORD cbBuf = sizeof(RASCONN);
478 LPRASCONN lpRasConn = (LPRASCONN)malloc(cbBuf);
479 if ( !lpRasConn )
480 {
481 // out of memory
482 return 0;
483 }
484
485 lpRasConn->dwSize = sizeof(RASCONN);
486
487 DWORD nConnections = 0;
488 DWORD dwRet = ERROR_BUFFER_TOO_SMALL;
489
490 while ( dwRet == ERROR_BUFFER_TOO_SMALL )
491 {
492 dwRet = ms_pfnRasEnumConnections(lpRasConn, &cbBuf, &nConnections);
493
494 if ( dwRet == ERROR_BUFFER_TOO_SMALL )
495 {
496 LPRASCONN lpRasConnOld = lpRasConn;
497 lpRasConn = (LPRASCONN)realloc(lpRasConn, cbBuf);
498 if ( !lpRasConn )
499 {
500 // out of memory
501 free(lpRasConnOld);
502
503 return 0;
504 }
505 }
506 else if ( dwRet == 0 )
507 {
508 // ok, success
509 break;
510 }
511 else
512 {
513 // an error occured
514 wxLogError(_("Cannot find active dialup connection: %s"),
515 GetErrorString(dwRet));
516 return 0;
517 }
518 }
519
520 HRASCONN hrasconn;
521
522 switch ( nConnections )
523 {
524 case 0:
525 // no connections
526 hrasconn = 0;
527 break;
528
529 default:
530 // more than 1 connection - we don't know what to do with this
531 // case, so give a warning but continue (taking the first
532 // connection) - the warning is really needed because this function
533 // is used, for example, to select the connection to hang up and so
534 // we may hang up the wrong connection here...
535 wxLogWarning(_("Several active dialup connections found, choosing one randomly."));
536 // fall through
537
538 case 1:
539 // exactly 1 connection, great
540 hrasconn = lpRasConn->hrasconn;
541 }
542
543 free(lpRasConn);
544
545 return hrasconn;
546 }
547
548 void wxDialUpManagerMSW::CleanUpThreadData()
549 {
550 if ( m_hThread )
551 {
552 if ( !SetEvent(m_data.hEventQuit) )
553 {
554 wxLogLastError("SetEvent(RasThreadQuit)");
555 }
556
557 CloseHandle(m_hThread);
558
559 m_hThread = 0;
560 }
561
562 if ( m_data.hWnd )
563 {
564 DestroyWindow(m_data.hWnd);
565
566 m_data.hWnd = 0;
567 }
568
569 if ( m_data.hEventQuit )
570 {
571 CloseHandle(m_data.hEventQuit);
572
573 m_data.hEventQuit = 0;
574 }
575
576 if ( m_data.hEventRas )
577 {
578 CloseHandle(m_data.hEventRas);
579
580 m_data.hEventRas = 0;
581 }
582 }
583
584 // ----------------------------------------------------------------------------
585 // connection status
586 // ----------------------------------------------------------------------------
587
588 void wxDialUpManagerMSW::CheckRasStatus()
589 {
590 // use int, not bool to compare with -1
591 int isConnected = FindActiveConnection() != 0;
592 if ( isConnected != ms_isConnected )
593 {
594 if ( ms_isConnected != -1 )
595 {
596 // notify the program
597 NotifyApp(isConnected != 0);
598 }
599 // else: it's the first time we're called, just update the flag
600
601 ms_isConnected = isConnected;
602 }
603 }
604
605 void wxDialUpManagerMSW::NotifyApp(bool connected, bool fromOurselves) const
606 {
607 wxDialUpEvent event(connected, fromOurselves);
608 (void)wxTheApp->ProcessEvent(event);
609 }
610
611 // this function is called whenever the status of any RAS connection on this
612 // machine changes by RAS itself
613 void wxDialUpManagerMSW::OnConnectStatusChange()
614 {
615 // we know that status changed, but we don't know whether we're connected
616 // or not - so find it out
617 CheckRasStatus();
618 }
619
620 // this function is called by our callback which we give to RasDial() when
621 // calling it asynchronously
622 void wxDialUpManagerMSW::OnDialProgress(RASCONNSTATE rasconnstate,
623 DWORD dwError)
624 {
625 if ( !GetDialer() )
626 {
627 // this probably means that CancelDialing() was called and we get
628 // "disconnected" notification
629 return;
630 }
631
632 // we're only interested in 2 events: connected and disconnected
633 if ( dwError )
634 {
635 wxLogError(_("Failed to establish dialup connection: %s"),
636 GetErrorString(dwError));
637
638 // we should still call RasHangUp() if we got a non 0 connection
639 if ( ms_hRasConnection )
640 {
641 ms_pfnRasHangUp(ms_hRasConnection);
642 ms_hRasConnection = 0;
643 }
644
645 ms_dialer = NULL;
646
647 NotifyApp(FALSE /* !connected */, TRUE /* we dialed ourselves */);
648 }
649 else if ( rasconnstate == RASCS_Connected )
650 {
651 ms_isConnected = TRUE;
652 ms_dialer = NULL;
653
654 NotifyApp(TRUE /* connected */, TRUE /* we dialed ourselves */);
655 }
656 }
657
658 // ----------------------------------------------------------------------------
659 // implementation of wxDialUpManager functions
660 // ----------------------------------------------------------------------------
661
662 bool wxDialUpManagerMSW::IsOk() const
663 {
664 return ms_dllRas != 0;
665 }
666
667 size_t wxDialUpManagerMSW::GetISPNames(wxArrayString& names) const
668 {
669 // fetch the entries
670 DWORD size = sizeof(RASENTRYNAME);
671 RASENTRYNAME *rasEntries = (RASENTRYNAME *)malloc(size);
672 rasEntries->dwSize = sizeof(RASENTRYNAME);
673
674 DWORD nEntries;
675 DWORD dwRet;
676 do
677 {
678 dwRet = ms_pfnRasEnumEntries
679 (
680 NULL, // reserved
681 NULL, // default phone book (or all)
682 rasEntries, // [out] buffer for the entries
683 &size, // [in/out] size of the buffer
684 &nEntries // [out] number of entries fetched
685 );
686
687 if ( dwRet == ERROR_BUFFER_TOO_SMALL )
688 {
689 // reallocate the buffer
690 rasEntries = (RASENTRYNAME *)realloc(rasEntries, size);
691 }
692 else if ( dwRet != 0 )
693 {
694 // some other error - abort
695 wxLogError(_("Failed to get ISP names: %s"), GetErrorString(dwRet));
696
697 free(rasEntries);
698
699 return 0u;
700 }
701 }
702 while ( dwRet != 0 );
703
704 // process them
705 names.Empty();
706 for ( size_t n = 0; n < (size_t)nEntries; n++ )
707 {
708 names.Add(rasEntries[n].szEntryName);
709 }
710
711 free(rasEntries);
712
713 // return the number of entries
714 return names.GetCount();
715 }
716
717 bool wxDialUpManagerMSW::Dial(const wxString& nameOfISP,
718 const wxString& username,
719 const wxString& password,
720 bool async)
721 {
722 // check preconditions
723 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
724
725 if ( ms_hRasConnection )
726 {
727 wxFAIL_MSG(wxT("there is already an active connection"));
728
729 return TRUE;
730 }
731
732 // get the default ISP if none given
733 wxString entryName(nameOfISP);
734 if ( !entryName )
735 {
736 wxArrayString names;
737 size_t count = GetISPNames(names);
738 switch ( count )
739 {
740 case 0:
741 // no known ISPs, abort
742 wxLogError(_("Failed to connect: no ISP to dial."));
743
744 return FALSE;
745
746 case 1:
747 // only one ISP, choose it
748 entryName = names[0u];
749 break;
750
751 default:
752 // several ISPs, let the user choose
753 {
754 wxString *strings = new wxString[count];
755 for ( size_t i = 0; i < count; i++ )
756 {
757 strings[i] = names[i];
758 }
759
760 entryName = wxGetSingleChoice
761 (
762 _("Choose ISP to dial"),
763 _("Please choose which ISP do you want to connect to"),
764 count,
765 strings
766 );
767
768 delete [] strings;
769
770 if ( !entryName )
771 {
772 // cancelled by user
773 return FALSE;
774 }
775 }
776 }
777 }
778
779 RASDIALPARAMS rasDialParams;
780 rasDialParams.dwSize = sizeof(rasDialParams);
781 wxStrncpy(rasDialParams.szEntryName, entryName, RAS_MaxEntryName);
782
783 // do we have the username and password?
784 if ( !username || !password )
785 {
786 BOOL gotPassword;
787 DWORD dwRet = ms_pfnRasGetEntryDialParams
788 (
789 NULL, // default phonebook
790 &rasDialParams, // [in/out] the params of this entry
791 &gotPassword // [out] did we get password?
792 );
793
794 if ( dwRet != 0 )
795 {
796 wxLogError(_("Failed to connect: missing username/password."));
797
798 return FALSE;
799 }
800 }
801 else
802 {
803 wxStrncpy(rasDialParams.szUserName, username, UNLEN);
804 wxStrncpy(rasDialParams.szPassword, password, PWLEN);
805 }
806
807 // default values for other fields
808 rasDialParams.szPhoneNumber[0] = '\0';
809 rasDialParams.szCallbackNumber[0] = '\0';
810 rasDialParams.szCallbackNumber[0] = '\0';
811
812 rasDialParams.szDomain[0] = '*';
813 rasDialParams.szDomain[1] = '\0';
814
815 // apparently, this is not really necessary - passing NULL instead of the
816 // phone book has the same effect
817 #if 0
818 wxString phoneBook;
819 if ( wxGetOsVersion() == wxWINDOWS_NT )
820 {
821 // first get the length
822 UINT nLen = ::GetSystemDirectory(NULL, 0);
823 nLen++;
824
825 if ( !::GetSystemDirectory(phoneBook.GetWriteBuf(nLen), nLen) )
826 {
827 wxLogSysError(_("Cannot find the location of address book file"));
828 }
829
830 phoneBook.UngetWriteBuf();
831
832 // this is the default phone book
833 phoneBook << "\\ras\\rasphone.pbk";
834 }
835 #endif // 0
836
837 // TODO may be we should disable auto check while async dialing is in
838 // progress?
839
840 ms_dialer = this;
841
842 DWORD dwRet = ms_pfnRasDial
843 (
844 (LPRASDIALEXTENSIONS)NULL, // no extended features
845 NULL, // default phone book file (NT only)
846 &rasDialParams,
847 0, // use callback for notifications
848 async ? wxRasDialFunc // the callback
849 : 0, // no notifications - sync operation
850 &ms_hRasConnection
851 );
852
853 if ( dwRet != 0 )
854 {
855 wxLogError(_("Failed to %s dialup connection: %s"),
856 async ? _("initiate") : _("establish"),
857 GetErrorString(dwRet));
858
859 // we should still call RasHangUp() if we got a non 0 connection
860 if ( ms_hRasConnection )
861 {
862 ms_pfnRasHangUp(ms_hRasConnection);
863 ms_hRasConnection = 0;
864 }
865
866 ms_dialer = NULL;
867
868 return FALSE;
869 }
870
871 // for async dialing, we're not yet connected
872 if ( !async )
873 {
874 ms_isConnected = TRUE;
875 }
876
877 return TRUE;
878 }
879
880 bool wxDialUpManagerMSW::IsDialing() const
881 {
882 return GetDialer() != NULL;
883 }
884
885 bool wxDialUpManagerMSW::CancelDialing()
886 {
887 if ( !GetDialer() )
888 {
889 // silently ignore
890 return FALSE;
891 }
892
893 wxASSERT_MSG( ms_hRasConnection, wxT("dialing but no connection?") );
894
895 ms_dialer = NULL;
896
897 return HangUp();
898 }
899
900 bool wxDialUpManagerMSW::HangUp()
901 {
902 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
903
904 // we may terminate either the connection we initiated or another one which
905 // is active now
906 HRASCONN hRasConn;
907 if ( ms_hRasConnection )
908 {
909 hRasConn = ms_hRasConnection;
910
911 ms_hRasConnection = 0;
912 }
913 else
914 {
915 hRasConn = FindActiveConnection();
916 }
917
918 if ( !hRasConn )
919 {
920 wxLogError(_("Cannot hang up - no active dialup connection."));
921
922 return FALSE;
923 }
924
925 DWORD dwRet = ms_pfnRasHangUp(hRasConn);
926 if ( dwRet != 0 )
927 {
928 wxLogError(_("Failed to terminate the dialup connection: %s"),
929 GetErrorString(dwRet));
930 }
931
932 ms_isConnected = FALSE;
933
934 return TRUE;
935 }
936
937 bool wxDialUpManagerMSW::IsAlwaysOnline() const
938 {
939 // we cache the result (presumably this won't change while the program is
940 // running!)
941 if ( ms_isAlwaysOnline != -1 )
942 {
943 return ms_isAlwaysOnline != 0;
944 }
945
946 // try to use WinInet function first
947 bool ok;
948 wxDllType hDll = wxDllLoader::LoadLibrary(_T("WININET"), &ok);
949 if ( ok )
950 {
951 typedef BOOL (*INTERNETGETCONNECTEDSTATE)(LPDWORD, DWORD);
952 INTERNETGETCONNECTEDSTATE pfnInternetGetConnectedState;
953
954 #define RESOLVE_FUNCTION(type, name) \
955 pfn##name = (type)wxDllLoader::GetSymbol(hDll, _T(#name))
956
957 RESOLVE_FUNCTION(INTERNETGETCONNECTEDSTATE, InternetGetConnectedState);
958
959 if ( pfnInternetGetConnectedState )
960 {
961 DWORD flags = 0;
962 if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
963 {
964 // there is some connection to the net, see of which type
965 ms_isAlwaysOnline = (flags & INTERNET_CONNECTION_LAN != 0) ||
966 (flags & INTERNET_CONNECTION_PROXY != 0);
967 }
968 else
969 {
970 // no Internet connection at all
971 ms_isAlwaysOnline = FALSE;
972 }
973 }
974
975 wxDllLoader::UnloadLibrary(hDll);
976 }
977
978 // did we succeed with WinInet? if not, try something else
979 if ( ms_isAlwaysOnline == -1 )
980 {
981 if ( !IsOnline() )
982 {
983 // definitely no permanent connection because we are not connected
984 // now
985 ms_isAlwaysOnline = FALSE;
986 }
987 else
988 {
989 // of course, having a modem doesn't prevent us from having a
990 // permanent connection as well, but we have to guess somehow and
991 // it's probably more common that a system connected via a modem
992 // doesn't have any other net access, so:
993 ms_isAlwaysOnline = FALSE;
994 }
995 }
996
997 wxASSERT_MSG( ms_isAlwaysOnline != -1, wxT("logic error") );
998
999 return ms_isAlwaysOnline != 0;
1000 }
1001
1002 bool wxDialUpManagerMSW::IsOnline() const
1003 {
1004 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
1005
1006 if ( ms_userSpecifiedOnlineStatus != -1 )
1007 {
1008 // user specified flag overrides our logic
1009 return ms_userSpecifiedOnlineStatus != 0;
1010 }
1011 else
1012 {
1013 // return TRUE if there is at least one active connection
1014 return FindActiveConnection() != 0;
1015 }
1016 }
1017
1018 void wxDialUpManagerMSW::SetOnlineStatus(bool isOnline)
1019 {
1020 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1021
1022 ms_userSpecifiedOnlineStatus = isOnline;
1023 }
1024
1025 bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
1026 {
1027 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
1028
1029 bool ok = ms_pfnRasConnectionNotification != 0;
1030
1031 if ( ok )
1032 {
1033 // we're running under NT 4.0, Windows 98 or later and can use
1034 // RasConnectionNotification() to be notified by a secondary thread
1035
1036 // first, see if we don't have this thread already running
1037 if ( m_hThread != 0 )
1038 {
1039 DWORD dwSuspendCount = 2;
1040 while ( dwSuspendCount > 1 )
1041 {
1042 dwSuspendCount = ResumeThread(m_hThread);
1043 if ( dwSuspendCount == (DWORD)-1 )
1044 {
1045 wxLogLastError(wxT("ResumeThread(RasThread)"));
1046
1047 ok = FALSE;
1048 }
1049 }
1050
1051 if ( ok )
1052 {
1053 return TRUE;
1054 }
1055 }
1056 }
1057
1058 // create all the stuff we need to be notified about RAS connection
1059 // status change
1060
1061 if ( ok )
1062 {
1063 // first create an event to wait on
1064 m_data.hEventRas = CreateEvent
1065 (
1066 NULL, // security attribute (default)
1067 FALSE, // manual reset (not)
1068 FALSE, // initial state (not signaled)
1069 NULL // name (no)
1070 );
1071 if ( !m_data.hEventRas )
1072 {
1073 wxLogLastError(wxT("CreateEvent(RasStatus)"));
1074
1075 ok = FALSE;
1076 }
1077 }
1078
1079 if ( ok )
1080 {
1081 // create the event we use to quit the thread
1082 m_data.hEventQuit = CreateEvent(NULL, FALSE, FALSE, NULL);
1083 if ( !m_data.hEventQuit )
1084 {
1085 wxLogLastError(wxT("CreateEvent(RasThreadQuit)"));
1086
1087 CleanUpThreadData();
1088
1089 ok = FALSE;
1090 }
1091 }
1092
1093 if ( ok && !ms_hwndRas )
1094 {
1095 // create a hidden window to receive notification about connections
1096 // status change
1097 extern const wxChar *wxPanelClassName;
1098 ms_hwndRas = ::CreateWindow(wxPanelClassName, NULL,
1099 0, 0, 0, 0,
1100 0, NULL,
1101 (HMENU)NULL, wxGetInstance(), 0);
1102 if ( !ms_hwndRas )
1103 {
1104 wxLogLastError(wxT("CreateWindow(RasHiddenWindow)"));
1105
1106 CleanUpThreadData();
1107
1108 ok = FALSE;
1109 }
1110
1111 // and subclass it
1112 FARPROC windowProc = MakeProcInstance
1113 (
1114 (FARPROC)wxRasStatusWindowProc,
1115 wxGetInstance()
1116 );
1117
1118 ::SetWindowLong(ms_hwndRas, GWL_WNDPROC, (LONG) windowProc);
1119 }
1120
1121 m_data.hWnd = ms_hwndRas;
1122
1123 if ( ok )
1124 {
1125 // start the secondary thread
1126 m_data.dialUpManager = this;
1127
1128 DWORD tid;
1129 m_hThread = CreateThread
1130 (
1131 NULL,
1132 0,
1133 (LPTHREAD_START_ROUTINE)wxRasMonitorThread,
1134 (void *)&m_data,
1135 0,
1136 &tid
1137 );
1138
1139 if ( !m_hThread )
1140 {
1141 wxLogLastError(wxT("CreateThread(RasStatusThread)"));
1142
1143 CleanUpThreadData();
1144 }
1145 }
1146
1147 if ( ok )
1148 {
1149 // start receiving RAS notifications
1150 DWORD dwRet = ms_pfnRasConnectionNotification
1151 (
1152 (HRASCONN)INVALID_HANDLE_VALUE,
1153 m_data.hEventRas,
1154 3 /* RASCN_Connection | RASCN_Disconnection */
1155 );
1156
1157 if ( dwRet != 0 )
1158 {
1159 wxLogDebug(wxT("RasConnectionNotification() failed: %s"),
1160 GetErrorString(dwRet));
1161
1162 CleanUpThreadData();
1163 }
1164 else
1165 {
1166 return TRUE;
1167 }
1168 }
1169
1170 // we're running under Windows 95 and have to poll ourselves
1171 // (or, alternatively, the code above for NT/98 failed)
1172 m_timerStatusPolling.Stop();
1173 if ( nSeconds == 0 )
1174 {
1175 // default value
1176 nSeconds = 60;
1177 }
1178 m_timerStatusPolling.Start(nSeconds * 1000);
1179
1180 return TRUE;
1181 }
1182
1183 void wxDialUpManagerMSW::DisableAutoCheckOnlineStatus()
1184 {
1185 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1186
1187 if ( m_hThread )
1188 {
1189 // we have running secondary thread, it's just enough to suspend it
1190 if ( SuspendThread(m_hThread) == (DWORD)-1 )
1191 {
1192 wxLogLastError(wxT("SuspendThread(RasThread)"));
1193 }
1194 }
1195 else
1196 {
1197 // even simpler - just stop the timer
1198 m_timerStatusPolling.Stop();
1199 }
1200 }
1201
1202 // ----------------------------------------------------------------------------
1203 // stubs which don't do anything in MSW version
1204 // ----------------------------------------------------------------------------
1205
1206 void wxDialUpManagerMSW::SetWellKnownHost(const wxString& WXUNUSED(hostname),
1207 int WXUNUSED(port))
1208 {
1209 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1210
1211 // nothing to do - we don't use this
1212 }
1213
1214 void wxDialUpManagerMSW::SetConnectCommand(const wxString& WXUNUSED(dial),
1215 const wxString& WXUNUSED(hangup))
1216 {
1217 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1218
1219 // nothing to do - we don't use this
1220 }
1221
1222 // ----------------------------------------------------------------------------
1223 // callbacks
1224 // ----------------------------------------------------------------------------
1225
1226 static DWORD wxRasMonitorThread(wxRasThreadData *data)
1227 {
1228 HANDLE handles[2];
1229 handles[0] = data->hEventRas;
1230 handles[1] = data->hEventQuit;
1231
1232 bool cont = TRUE;
1233 while ( cont )
1234 {
1235 DWORD dwRet = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
1236
1237 switch ( dwRet )
1238 {
1239 case WAIT_OBJECT_0:
1240 // RAS connection status changed
1241 SendMessage(data->hWnd, wxWM_RAS_STATUS_CHANGED,
1242 0, (LPARAM)data);
1243 break;
1244
1245 case WAIT_OBJECT_0 + 1:
1246 cont = FALSE;
1247 break;
1248
1249 case WAIT_FAILED:
1250 wxLogLastError(wxT("WaitForMultipleObjects(RasMonitor)"));
1251 break;
1252 }
1253 }
1254
1255 return 0;
1256 }
1257
1258 static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
1259 WPARAM wParam, LPARAM lParam)
1260 {
1261 if ( message == wxWM_RAS_STATUS_CHANGED )
1262 {
1263 wxRasThreadData *data = (wxRasThreadData *)lParam;
1264 data->dialUpManager->OnConnectStatusChange();
1265 }
1266 else if ( message == wxWM_RAS_DIALING_PROGRESS )
1267 {
1268 wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
1269
1270 dialUpManager->OnDialProgress((RASCONNSTATE)wParam, lParam);
1271 }
1272
1273 return 0;
1274 }
1275
1276 static void WINAPI wxRasDialFunc(UINT unMsg,
1277 RASCONNSTATE rasconnstate,
1278 DWORD dwError)
1279 {
1280 wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
1281
1282 wxCHECK_RET( dialUpManager, wxT("who started to dial then?") );
1283
1284 SendMessage(dialUpManager->GetRasWindow(), wxWM_RAS_DIALING_PROGRESS,
1285 rasconnstate, dwError);
1286 }
1287
1288 #endif
1289 // __BORLANDC__
1290 #endif // wxUSE_DIALUP_MANAGER