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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/timer.h"
42 #include "wx/app.h"
43 #include "wx/generic/choicdgg.h"
44
45 #include "wx/dynlib.h"
46 #include "wx/dialup.h"
47
48 DEFINE_EVENT_TYPE(wxEVT_DIALUP_CONNECTED)
49 DEFINE_EVENT_TYPE(wxEVT_DIALUP_DISCONNECTED)
50
51 // Doesn't yet compile under VC++ 4, BC++, Watcom C++,
52 // Wine: no wininet.h
53 #if (!defined(__BORLANDC__) || (__BORLANDC__>=0x550)) && \
54 (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION(0, 5)) && \
55 !defined(__GNUWIN32_OLD__) && \
56 !defined(__WATCOMC__) && \
57 !defined(__WINE__) && \
58 (!defined(__VISUALC__) || (__VISUALC__ >= 1020))
59
60 #include <ras.h>
61 #include <raserror.h>
62
63 #include <wininet.h>
64
65 // Not in VC++ 5
66 #ifndef INTERNET_CONNECTION_LAN
67 #define INTERNET_CONNECTION_LAN 2
68 #endif
69 #ifndef INTERNET_CONNECTION_PROXY
70 #define INTERNET_CONNECTION_PROXY 4
71 #endif
72
73 // ----------------------------------------------------------------------------
74 // constants
75 // ----------------------------------------------------------------------------
76
77 // this message is sent by the secondary thread when RAS status changes
78 #define wxWM_RAS_STATUS_CHANGED (WM_USER + 10010)
79 #define wxWM_RAS_DIALING_PROGRESS (WM_USER + 10011)
80
81 // ----------------------------------------------------------------------------
82 // types
83 // ----------------------------------------------------------------------------
84
85 // the signatures of RAS functions: all this is quite heavy, but we must do it
86 // to allow running wxWin programs on machine which don't have RAS installed
87 // (this does exist) - if we link with rasapi32.lib, the program will fail on
88 // startup because of the missing DLL...
89
90 #ifndef UNICODE
91 typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCSTR, LPRASDIALPARAMSA, DWORD, LPVOID, LPHRASCONN );
92 typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNA, LPDWORD, LPDWORD );
93 typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCSTR, LPCSTR, LPRASENTRYNAMEA, LPDWORD, LPDWORD );
94 typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSA );
95 typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPSTR, DWORD );
96 typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
97 typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
98 typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCSTR );
99 typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCSTR, LPCSTR );
100 typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, BOOL );
101 typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, LPBOOL );
102 typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOA, LPDWORD, LPDWORD );
103 typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOA, LPDWORD );
104 typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, LPDWORD, LPBYTE, LPDWORD );
105 typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, DWORD, LPBYTE, DWORD );
106 typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCSTR, LPCSTR, LPCSTR );
107 typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCSTR, LPCSTR );
108 typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCSTR, LPCSTR );
109 typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
110
111 static const wxChar gs_funcSuffix = _T('A');
112 #else // Unicode
113 typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCWSTR, LPRASDIALPARAMSW, DWORD, LPVOID, LPHRASCONN );
114 typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNW, LPDWORD, LPDWORD );
115 typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCWSTR, LPCWSTR, LPRASENTRYNAMEW, LPDWORD, LPDWORD );
116 typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSW );
117 typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPWSTR, DWORD );
118 typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
119 typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
120 typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCWSTR );
121 typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCWSTR, LPCWSTR );
122 typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, BOOL );
123 typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, LPBOOL );
124 typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOW, LPDWORD, LPDWORD );
125 typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOW, LPDWORD );
126 typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, LPDWORD, LPBYTE, LPDWORD );
127 typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, DWORD, LPBYTE, DWORD );
128 typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCWSTR, LPCWSTR, LPCWSTR );
129 typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCWSTR, LPCWSTR );
130 typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCWSTR, LPCWSTR );
131 typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
132
133 static const wxChar gs_funcSuffix = _T('W');
134 #endif // ASCII/Unicode
135
136 // structure passed to the secondary thread
137 struct WXDLLEXPORT wxRasThreadData
138 {
139 wxRasThreadData()
140 {
141 hWnd = 0;
142 hEventRas = hEventQuit = INVALID_HANDLE_VALUE;
143 dialUpManager = NULL;
144 }
145
146 HWND hWnd; // window to send notifications to
147 HANDLE hEventRas, // event which RAS signals when status changes
148 hEventQuit; // event which we signal when we terminate
149
150 class WXDLLEXPORT wxDialUpManagerMSW *dialUpManager; // the owner
151 };
152
153 // ----------------------------------------------------------------------------
154 // wxDialUpManager class for MSW
155 // ----------------------------------------------------------------------------
156
157 class WXDLLEXPORT wxDialUpManagerMSW : public wxDialUpManager
158 {
159 public:
160 // ctor & dtor
161 wxDialUpManagerMSW();
162 virtual ~wxDialUpManagerMSW();
163
164 // implement base class pure virtuals
165 virtual bool IsOk() const;
166 virtual size_t GetISPNames(wxArrayString& names) const;
167 virtual bool Dial(const wxString& nameOfISP,
168 const wxString& username,
169 const wxString& password,
170 bool async);
171 virtual bool IsDialing() const;
172 virtual bool CancelDialing();
173 virtual bool HangUp();
174 virtual bool IsAlwaysOnline() const;
175 virtual bool IsOnline() const;
176 virtual void SetOnlineStatus(bool isOnline = TRUE);
177 virtual bool EnableAutoCheckOnlineStatus(size_t nSeconds);
178 virtual void DisableAutoCheckOnlineStatus();
179 virtual void SetWellKnownHost(const wxString& hostname, int port);
180 virtual void SetConnectCommand(const wxString& commandDial,
181 const wxString& commandHangup);
182
183 // for RasTimer
184 void CheckRasStatus();
185
186 // for wxRasStatusWindowProc
187 void OnConnectStatusChange();
188 void OnDialProgress(RASCONNSTATE rasconnstate, DWORD dwError);
189
190 // for wxRasDialFunc
191 static HWND GetRasWindow() { return ms_hwndRas; }
192 static wxDialUpManagerMSW *GetDialer() { return ms_dialer; }
193
194 private:
195 // return the error string for the given RAS error code
196 static wxString GetErrorString(DWORD error);
197
198 // find the (first) handle of the active connection
199 static HRASCONN FindActiveConnection();
200
201 // notify the application about status change
202 void NotifyApp(bool connected, bool fromOurselves = FALSE) const;
203
204 // destroy the thread data and the thread itself
205 void CleanUpThreadData();
206
207 // number of times EnableAutoCheckOnlineStatus() had been called minus the
208 // number of times DisableAutoCheckOnlineStatus() had been called
209 int m_autoCheckLevel;
210
211 // timer used for polling RAS status
212 class WXDLLEXPORT RasTimer : public wxTimer
213 {
214 public:
215 RasTimer(wxDialUpManagerMSW *dialUpManager)
216 { m_dialUpManager = dialUpManager; }
217
218 virtual void Notify() { m_dialUpManager->CheckRasStatus(); }
219
220 private:
221 wxDialUpManagerMSW *m_dialUpManager;
222
223 DECLARE_NO_COPY_CLASS(RasTimer)
224 } m_timerStatusPolling;
225
226 // thread handle for the thread sitting on connection change event
227 HANDLE m_hThread;
228
229 // data used by this thread and our hidden window to send messages between
230 // each other
231 wxRasThreadData m_data;
232
233 // the handle of rasapi32.dll when it's loaded
234 wxDynamicLibrary m_dllRas;
235
236 // the hidden window we use for passing messages between threads
237 static HWND ms_hwndRas;
238
239 // the handle of the connection we initiated or 0 if none
240 static HRASCONN ms_hRasConnection;
241
242 // the pointers to RAS functions
243 static RASDIAL ms_pfnRasDial;
244 static RASENUMCONNECTIONS ms_pfnRasEnumConnections;
245 static RASENUMENTRIES ms_pfnRasEnumEntries;
246 static RASGETCONNECTSTATUS ms_pfnRasGetConnectStatus;
247 static RASGETERRORSTRING ms_pfnRasGetErrorString;
248 static RASHANGUP ms_pfnRasHangUp;
249 static RASGETPROJECTIONINFO ms_pfnRasGetProjectionInfo;
250 static RASCREATEPHONEBOOKENTRY ms_pfnRasCreatePhonebookEntry;
251 static RASEDITPHONEBOOKENTRY ms_pfnRasEditPhonebookEntry;
252 static RASSETENTRYDIALPARAMS ms_pfnRasSetEntryDialParams;
253 static RASGETENTRYDIALPARAMS ms_pfnRasGetEntryDialParams;
254 static RASENUMDEVICES ms_pfnRasEnumDevices;
255 static RASGETCOUNTRYINFO ms_pfnRasGetCountryInfo;
256 static RASGETENTRYPROPERTIES ms_pfnRasGetEntryProperties;
257 static RASSETENTRYPROPERTIES ms_pfnRasSetEntryProperties;
258 static RASRENAMEENTRY ms_pfnRasRenameEntry;
259 static RASDELETEENTRY ms_pfnRasDeleteEntry;
260 static RASVALIDATEENTRYNAME ms_pfnRasValidateEntryName;
261
262 // this function is not supported by Win95
263 static RASCONNECTIONNOTIFICATION ms_pfnRasConnectionNotification;
264
265 // if this flag is different from -1, it overrides IsOnline()
266 static int ms_userSpecifiedOnlineStatus;
267
268 // this flag tells us if we're online
269 static int ms_isConnected;
270
271 // this flag tells us whether a call to RasDial() is in progress
272 static wxDialUpManagerMSW *ms_dialer;
273
274 DECLARE_NO_COPY_CLASS(wxDialUpManagerMSW)
275 };
276
277 // ----------------------------------------------------------------------------
278 // private functions
279 // ----------------------------------------------------------------------------
280
281 static LRESULT WINAPI wxRasStatusWindowProc(HWND hWnd, UINT message,
282 WPARAM wParam, LPARAM lParam);
283
284 static DWORD wxRasMonitorThread(wxRasThreadData *data);
285
286 static void WINAPI wxRasDialFunc(UINT unMsg,
287 RASCONNSTATE rasconnstate,
288 DWORD dwError);
289
290 // ============================================================================
291 // implementation
292 // ============================================================================
293
294 // ----------------------------------------------------------------------------
295 // init the static variables
296 // ----------------------------------------------------------------------------
297
298 HRASCONN wxDialUpManagerMSW::ms_hRasConnection = 0;
299
300 HWND wxDialUpManagerMSW::ms_hwndRas = 0;
301
302 RASDIAL wxDialUpManagerMSW::ms_pfnRasDial = 0;
303 RASENUMCONNECTIONS wxDialUpManagerMSW::ms_pfnRasEnumConnections = 0;
304 RASENUMENTRIES wxDialUpManagerMSW::ms_pfnRasEnumEntries = 0;
305 RASGETCONNECTSTATUS wxDialUpManagerMSW::ms_pfnRasGetConnectStatus = 0;
306 RASGETERRORSTRING wxDialUpManagerMSW::ms_pfnRasGetErrorString = 0;
307 RASHANGUP wxDialUpManagerMSW::ms_pfnRasHangUp = 0;
308 RASGETPROJECTIONINFO wxDialUpManagerMSW::ms_pfnRasGetProjectionInfo = 0;
309 RASCREATEPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasCreatePhonebookEntry = 0;
310 RASEDITPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasEditPhonebookEntry = 0;
311 RASSETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasSetEntryDialParams = 0;
312 RASGETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasGetEntryDialParams = 0;
313 RASENUMDEVICES wxDialUpManagerMSW::ms_pfnRasEnumDevices = 0;
314 RASGETCOUNTRYINFO wxDialUpManagerMSW::ms_pfnRasGetCountryInfo = 0;
315 RASGETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasGetEntryProperties = 0;
316 RASSETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasSetEntryProperties = 0;
317 RASRENAMEENTRY wxDialUpManagerMSW::ms_pfnRasRenameEntry = 0;
318 RASDELETEENTRY wxDialUpManagerMSW::ms_pfnRasDeleteEntry = 0;
319 RASVALIDATEENTRYNAME wxDialUpManagerMSW::ms_pfnRasValidateEntryName = 0;
320 RASCONNECTIONNOTIFICATION wxDialUpManagerMSW::ms_pfnRasConnectionNotification = 0;
321
322 int wxDialUpManagerMSW::ms_userSpecifiedOnlineStatus = -1;
323 int wxDialUpManagerMSW::ms_isConnected = -1;
324 wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
325
326 // ----------------------------------------------------------------------------
327 // ctor and dtor: the dynamic linking happens here
328 // ----------------------------------------------------------------------------
329
330 // the static creator function is implemented here
331 wxDialUpManager *wxDialUpManager::Create()
332 {
333 return new wxDialUpManagerMSW;
334 }
335
336 #ifdef __VISUALC__
337 // warning about "'this' : used in base member initializer list" - so what?
338 #pragma warning(disable:4355)
339 #endif // VC++
340
341 wxDialUpManagerMSW::wxDialUpManagerMSW()
342 : m_timerStatusPolling(this),
343 m_dllRas(_T("RASAPI32"))
344 {
345 // initialize our data
346 m_autoCheckLevel = 0;
347 m_hThread = 0;
348
349 if ( !m_dllRas.IsLoaded() )
350 {
351 wxLogError(_("Dial up functions are unavailable because the remote access service (RAS) is not installed on this machine. Please install it."));
352 }
353 else if ( !ms_pfnRasDial )
354 {
355 // resolve the functions we need
356
357 // this will contain the name of the function we failed to resolve
358 // if any at the end
359 const char *funcName = NULL;
360
361 // get the function from rasapi32.dll and abort if it's not found
362 #define RESOLVE_RAS_FUNCTION(type, name) \
363 ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name)) \
364 + gs_funcSuffix); \
365 if ( !ms_pfn##name ) \
366 { \
367 funcName = #name; \
368 goto exit; \
369 }
370
371 // a variant of above macro which doesn't abort if the function is
372 // not found in the DLL
373 #define RESOLVE_OPTIONAL_RAS_FUNCTION(type, name) \
374 ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name)) \
375 + gs_funcSuffix);
376
377 RESOLVE_RAS_FUNCTION(RASDIAL, RasDial);
378 RESOLVE_RAS_FUNCTION(RASENUMCONNECTIONS, RasEnumConnections);
379 RESOLVE_RAS_FUNCTION(RASENUMENTRIES, RasEnumEntries);
380 RESOLVE_RAS_FUNCTION(RASGETCONNECTSTATUS, RasGetConnectStatus);
381 RESOLVE_RAS_FUNCTION(RASGETERRORSTRING, RasGetErrorString);
382 RESOLVE_RAS_FUNCTION(RASHANGUP, RasHangUp);
383 RESOLVE_RAS_FUNCTION(RASGETENTRYDIALPARAMS, RasGetEntryDialParams);
384
385 // suppress error messages about missing (non essential) 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 m_dllRas.Unload();
417 return;
418 }
419 }
420
421 // enable auto check by default
422 EnableAutoCheckOnlineStatus(0);
423 }
424
425 wxDialUpManagerMSW::~wxDialUpManagerMSW()
426 {
427 CleanUpThreadData();
428 }
429
430 // ----------------------------------------------------------------------------
431 // helper functions
432 // ----------------------------------------------------------------------------
433
434 wxString wxDialUpManagerMSW::GetErrorString(DWORD error)
435 {
436 wxChar buffer[512]; // this should be more than enough according to MS docs
437 DWORD dwRet = ms_pfnRasGetErrorString(error, buffer, WXSIZEOF(buffer));
438 switch ( dwRet )
439 {
440 case ERROR_INVALID_PARAMETER:
441 // this was a standard Win32 error probably
442 return wxString(wxSysErrorMsg(error));
443
444 default:
445 {
446 wxLogSysError(dwRet,
447 _("Failed to retrieve text of RAS error message"));
448
449 wxString msg;
450 msg.Printf(_("unknown error (error code %08x)."), error);
451 return msg;
452 }
453
454 case 0:
455 // we want the error message to start from a lower case letter
456 buffer[0] = wxTolower(buffer[0]);
457
458 return wxString(buffer);
459 }
460 }
461
462 HRASCONN wxDialUpManagerMSW::FindActiveConnection()
463 {
464 // enumerate connections
465 DWORD cbBuf = sizeof(RASCONN);
466 LPRASCONN lpRasConn = (LPRASCONN)malloc(cbBuf);
467 if ( !lpRasConn )
468 {
469 // out of memory
470 return 0;
471 }
472
473 lpRasConn->dwSize = sizeof(RASCONN);
474
475 DWORD nConnections = 0;
476 DWORD dwRet = ERROR_BUFFER_TOO_SMALL;
477
478 while ( dwRet == ERROR_BUFFER_TOO_SMALL )
479 {
480 dwRet = ms_pfnRasEnumConnections(lpRasConn, &cbBuf, &nConnections);
481
482 if ( dwRet == ERROR_BUFFER_TOO_SMALL )
483 {
484 LPRASCONN lpRasConnOld = lpRasConn;
485 lpRasConn = (LPRASCONN)realloc(lpRasConn, cbBuf);
486 if ( !lpRasConn )
487 {
488 // out of memory
489 free(lpRasConnOld);
490
491 return 0;
492 }
493 }
494 else if ( dwRet == 0 )
495 {
496 // ok, success
497 break;
498 }
499 else
500 {
501 // an error occured
502 wxLogError(_("Cannot find active dialup connection: %s"),
503 GetErrorString(dwRet).c_str());
504 return 0;
505 }
506 }
507
508 HRASCONN hrasconn;
509
510 switch ( nConnections )
511 {
512 case 0:
513 // no connections
514 hrasconn = 0;
515 break;
516
517 default:
518 // more than 1 connection - we don't know what to do with this
519 // case, so give a warning but continue (taking the first
520 // connection) - the warning is really needed because this function
521 // is used, for example, to select the connection to hang up and so
522 // we may hang up the wrong connection here...
523 wxLogWarning(_("Several active dialup connections found, choosing one randomly."));
524 // fall through
525
526 case 1:
527 // exactly 1 connection, great
528 hrasconn = lpRasConn->hrasconn;
529 }
530
531 free(lpRasConn);
532
533 return hrasconn;
534 }
535
536 void wxDialUpManagerMSW::CleanUpThreadData()
537 {
538 if ( m_hThread )
539 {
540 if ( !SetEvent(m_data.hEventQuit) )
541 {
542 wxLogLastError(_T("SetEvent(RasThreadQuit)"));
543 }
544
545 CloseHandle(m_hThread);
546
547 m_hThread = 0;
548 }
549
550 if ( m_data.hWnd )
551 {
552 DestroyWindow(m_data.hWnd);
553
554 m_data.hWnd = 0;
555 }
556
557 if ( m_data.hEventQuit )
558 {
559 CloseHandle(m_data.hEventQuit);
560
561 m_data.hEventQuit = 0;
562 }
563
564 if ( m_data.hEventRas )
565 {
566 CloseHandle(m_data.hEventRas);
567
568 m_data.hEventRas = 0;
569 }
570 }
571
572 // ----------------------------------------------------------------------------
573 // connection status
574 // ----------------------------------------------------------------------------
575
576 void wxDialUpManagerMSW::CheckRasStatus()
577 {
578 // use int, not bool to compare with -1
579 int isConnected = FindActiveConnection() != 0;
580 if ( isConnected != ms_isConnected )
581 {
582 if ( ms_isConnected != -1 )
583 {
584 // notify the program
585 NotifyApp(isConnected != 0);
586 }
587 // else: it's the first time we're called, just update the flag
588
589 ms_isConnected = isConnected;
590 }
591 }
592
593 void wxDialUpManagerMSW::NotifyApp(bool connected, bool fromOurselves) const
594 {
595 wxDialUpEvent event(connected, fromOurselves);
596 (void)wxTheApp->ProcessEvent(event);
597 }
598
599 // this function is called whenever the status of any RAS connection on this
600 // machine changes by RAS itself
601 void wxDialUpManagerMSW::OnConnectStatusChange()
602 {
603 // we know that status changed, but we don't know whether we're connected
604 // or not - so find it out
605 CheckRasStatus();
606 }
607
608 // this function is called by our callback which we give to RasDial() when
609 // calling it asynchronously
610 void wxDialUpManagerMSW::OnDialProgress(RASCONNSTATE rasconnstate,
611 DWORD dwError)
612 {
613 if ( !GetDialer() )
614 {
615 // this probably means that CancelDialing() was called and we get
616 // "disconnected" notification
617 return;
618 }
619
620 // we're only interested in 2 events: connected and disconnected
621 if ( dwError )
622 {
623 wxLogError(_("Failed to establish dialup connection: %s"),
624 GetErrorString(dwError).c_str());
625
626 // we should still call RasHangUp() if we got a non 0 connection
627 if ( ms_hRasConnection )
628 {
629 ms_pfnRasHangUp(ms_hRasConnection);
630 ms_hRasConnection = 0;
631 }
632
633 ms_dialer = NULL;
634
635 NotifyApp(FALSE /* !connected */, TRUE /* we dialed ourselves */);
636 }
637 else if ( rasconnstate == RASCS_Connected )
638 {
639 ms_isConnected = TRUE;
640 ms_dialer = NULL;
641
642 NotifyApp(TRUE /* connected */, TRUE /* we dialed ourselves */);
643 }
644 }
645
646 // ----------------------------------------------------------------------------
647 // implementation of wxDialUpManager functions
648 // ----------------------------------------------------------------------------
649
650 bool wxDialUpManagerMSW::IsOk() const
651 {
652 return m_dllRas.IsLoaded();
653 }
654
655 size_t wxDialUpManagerMSW::GetISPNames(wxArrayString& names) const
656 {
657 // fetch the entries
658 DWORD size = sizeof(RASENTRYNAME);
659 RASENTRYNAME *rasEntries = (RASENTRYNAME *)malloc(size);
660 rasEntries->dwSize = sizeof(RASENTRYNAME);
661
662 DWORD nEntries;
663 DWORD dwRet;
664 do
665 {
666 dwRet = ms_pfnRasEnumEntries
667 (
668 NULL, // reserved
669 NULL, // default phone book (or all)
670 rasEntries, // [out] buffer for the entries
671 &size, // [in/out] size of the buffer
672 &nEntries // [out] number of entries fetched
673 );
674
675 if ( dwRet == ERROR_BUFFER_TOO_SMALL )
676 {
677 // reallocate the buffer
678 rasEntries = (RASENTRYNAME *)realloc(rasEntries, size);
679 }
680 else if ( dwRet != 0 )
681 {
682 // some other error - abort
683 wxLogError(_("Failed to get ISP names: %s"),
684 GetErrorString(dwRet).c_str());
685
686 free(rasEntries);
687
688 return 0u;
689 }
690 }
691 while ( dwRet != 0 );
692
693 // process them
694 names.Empty();
695 for ( size_t n = 0; n < (size_t)nEntries; n++ )
696 {
697 names.Add(rasEntries[n].szEntryName);
698 }
699
700 free(rasEntries);
701
702 // return the number of entries
703 return names.GetCount();
704 }
705
706 bool wxDialUpManagerMSW::Dial(const wxString& nameOfISP,
707 const wxString& username,
708 const wxString& password,
709 bool async)
710 {
711 // check preconditions
712 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
713
714 if ( ms_hRasConnection )
715 {
716 wxFAIL_MSG(wxT("there is already an active connection"));
717
718 return TRUE;
719 }
720
721 // get the default ISP if none given
722 wxString entryName(nameOfISP);
723 if ( !entryName )
724 {
725 wxArrayString names;
726 size_t count = GetISPNames(names);
727 switch ( count )
728 {
729 case 0:
730 // no known ISPs, abort
731 wxLogError(_("Failed to connect: no ISP to dial."));
732
733 return FALSE;
734
735 case 1:
736 // only one ISP, choose it
737 entryName = names[0u];
738 break;
739
740 default:
741 // several ISPs, let the user choose
742 {
743 wxString *strings = new wxString[count];
744 for ( size_t i = 0; i < count; i++ )
745 {
746 strings[i] = names[i];
747 }
748
749 entryName = wxGetSingleChoice
750 (
751 _("Choose ISP to dial"),
752 _("Please choose which ISP do you want to connect to"),
753 count,
754 strings
755 );
756
757 delete [] strings;
758
759 if ( !entryName )
760 {
761 // cancelled by user
762 return FALSE;
763 }
764 }
765 }
766 }
767
768 RASDIALPARAMS rasDialParams;
769 rasDialParams.dwSize = sizeof(rasDialParams);
770 wxStrncpy(rasDialParams.szEntryName, entryName, RAS_MaxEntryName);
771
772 // do we have the username and password?
773 if ( !username || !password )
774 {
775 BOOL gotPassword;
776 DWORD dwRet = ms_pfnRasGetEntryDialParams
777 (
778 NULL, // default phonebook
779 &rasDialParams, // [in/out] the params of this entry
780 &gotPassword // [out] did we get password?
781 );
782
783 if ( dwRet != 0 )
784 {
785 wxLogError(_("Failed to connect: missing username/password."));
786
787 return FALSE;
788 }
789 }
790 else
791 {
792 wxStrncpy(rasDialParams.szUserName, username, UNLEN);
793 wxStrncpy(rasDialParams.szPassword, password, PWLEN);
794 }
795
796 // default values for other fields
797 rasDialParams.szPhoneNumber[0] = '\0';
798 rasDialParams.szCallbackNumber[0] = '\0';
799 rasDialParams.szCallbackNumber[0] = '\0';
800
801 rasDialParams.szDomain[0] = '*';
802 rasDialParams.szDomain[1] = '\0';
803
804 // apparently, this is not really necessary - passing NULL instead of the
805 // phone book has the same effect
806 #if 0
807 wxString phoneBook;
808 if ( wxGetOsVersion() == wxWINDOWS_NT )
809 {
810 // first get the length
811 UINT nLen = ::GetSystemDirectory(NULL, 0);
812 nLen++;
813
814 if ( !::GetSystemDirectory(phoneBook.GetWriteBuf(nLen), nLen) )
815 {
816 wxLogSysError(_("Cannot find the location of address book file"));
817 }
818
819 phoneBook.UngetWriteBuf();
820
821 // this is the default phone book
822 phoneBook << "\\ras\\rasphone.pbk";
823 }
824 #endif // 0
825
826 // TODO may be we should disable auto check while async dialing is in
827 // progress?
828
829 ms_dialer = this;
830
831 DWORD dwRet = ms_pfnRasDial
832 (
833 NULL, // no extended features
834 NULL, // default phone book file (NT only)
835 &rasDialParams,
836 0, // use callback for notifications
837 async ? (void *)wxRasDialFunc // cast needed for gcc 3.1
838 : 0, // no notifications, sync operation
839 &ms_hRasConnection
840 );
841
842 if ( dwRet != 0 )
843 {
844 // can't pass a wxWCharBuffer through ( ... )
845 wxLogError(_("Failed to %s dialup connection: %s"),
846 wxString(async ? _("initiate") : _("establish")).c_str(),
847 GetErrorString(dwRet).c_str());
848
849 // we should still call RasHangUp() if we got a non 0 connection
850 if ( ms_hRasConnection )
851 {
852 ms_pfnRasHangUp(ms_hRasConnection);
853 ms_hRasConnection = 0;
854 }
855
856 ms_dialer = NULL;
857
858 return FALSE;
859 }
860
861 // for async dialing, we're not yet connected
862 if ( !async )
863 {
864 ms_isConnected = TRUE;
865 }
866
867 return TRUE;
868 }
869
870 bool wxDialUpManagerMSW::IsDialing() const
871 {
872 return GetDialer() != NULL;
873 }
874
875 bool wxDialUpManagerMSW::CancelDialing()
876 {
877 if ( !GetDialer() )
878 {
879 // silently ignore
880 return FALSE;
881 }
882
883 wxASSERT_MSG( ms_hRasConnection, wxT("dialing but no connection?") );
884
885 ms_dialer = NULL;
886
887 return HangUp();
888 }
889
890 bool wxDialUpManagerMSW::HangUp()
891 {
892 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
893
894 // we may terminate either the connection we initiated or another one which
895 // is active now
896 HRASCONN hRasConn;
897 if ( ms_hRasConnection )
898 {
899 hRasConn = ms_hRasConnection;
900
901 ms_hRasConnection = 0;
902 }
903 else
904 {
905 hRasConn = FindActiveConnection();
906 }
907
908 if ( !hRasConn )
909 {
910 wxLogError(_("Cannot hang up - no active dialup connection."));
911
912 return FALSE;
913 }
914
915 DWORD dwRet = ms_pfnRasHangUp(hRasConn);
916 if ( dwRet != 0 )
917 {
918 wxLogError(_("Failed to terminate the dialup connection: %s"),
919 GetErrorString(dwRet).c_str());
920 }
921
922 ms_isConnected = FALSE;
923
924 return TRUE;
925 }
926
927 bool wxDialUpManagerMSW::IsAlwaysOnline() const
928 {
929 // assume no permanent connection by default
930 bool isAlwaysOnline = FALSE;
931
932 // try to use WinInet functions
933
934 // NB: we could probably use wxDynamicLibrary here just as well,
935 // but we allow multiple instances of wxDialUpManagerMSW so
936 // we might as well use the ref counted version here too.
937
938 wxDynamicLibrary hDll(_T("WININET"));
939 if ( hDll.IsLoaded() )
940 {
941 typedef BOOL (WINAPI *INTERNETGETCONNECTEDSTATE)(LPDWORD, DWORD);
942 INTERNETGETCONNECTEDSTATE pfnInternetGetConnectedState;
943
944 #define RESOLVE_FUNCTION(type, name) \
945 pfn##name = (type)hDll.GetSymbol(_T(#name))
946
947 RESOLVE_FUNCTION(INTERNETGETCONNECTEDSTATE, InternetGetConnectedState);
948
949 if ( pfnInternetGetConnectedState )
950 {
951 DWORD flags = 0;
952 if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
953 {
954 // there is some connection to the net, see of which type
955 isAlwaysOnline = (flags & (INTERNET_CONNECTION_LAN |
956 INTERNET_CONNECTION_PROXY)) != 0;
957 }
958 //else: no Internet connection at all
959 }
960 }
961
962 return isAlwaysOnline;
963 }
964
965 bool wxDialUpManagerMSW::IsOnline() const
966 {
967 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
968
969 if ( IsAlwaysOnline() )
970 {
971 // always => now
972 return true;
973 }
974
975 if ( ms_userSpecifiedOnlineStatus != -1 )
976 {
977 // user specified flag overrides our logic
978 return ms_userSpecifiedOnlineStatus != 0;
979 }
980 else
981 {
982 // return TRUE if there is at least one active connection
983 return FindActiveConnection() != 0;
984 }
985 }
986
987 void wxDialUpManagerMSW::SetOnlineStatus(bool isOnline)
988 {
989 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
990
991 ms_userSpecifiedOnlineStatus = isOnline;
992 }
993
994 bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
995 {
996 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
997
998 if ( m_autoCheckLevel++ )
999 {
1000 // already checking
1001 return TRUE;
1002 }
1003
1004 bool ok = ms_pfnRasConnectionNotification != 0;
1005
1006 if ( ok )
1007 {
1008 // we're running under NT 4.0, Windows 98 or later and can use
1009 // RasConnectionNotification() to be notified by a secondary thread
1010
1011 // first, see if we don't have this thread already running
1012 if ( m_hThread != 0 )
1013 {
1014 if ( ::ResumeThread(m_hThread) != (DWORD)-1 )
1015 return TRUE;
1016
1017 // we're leaving a zombie thread... but what else can we do?
1018 wxLogLastError(wxT("ResumeThread(RasThread)"));
1019
1020 ok = FALSE;
1021 }
1022 }
1023
1024 // create all the stuff we need to be notified about RAS connection
1025 // status change
1026
1027 if ( ok )
1028 {
1029 // first create an event to wait on
1030 m_data.hEventRas = CreateEvent
1031 (
1032 NULL, // security attribute (default)
1033 FALSE, // manual reset (not)
1034 FALSE, // initial state (not signaled)
1035 NULL // name (no)
1036 );
1037 if ( !m_data.hEventRas )
1038 {
1039 wxLogLastError(wxT("CreateEvent(RasStatus)"));
1040
1041 ok = FALSE;
1042 }
1043 }
1044
1045 if ( ok )
1046 {
1047 // create the event we use to quit the thread
1048 m_data.hEventQuit = CreateEvent(NULL, FALSE, FALSE, NULL);
1049 if ( !m_data.hEventQuit )
1050 {
1051 wxLogLastError(wxT("CreateEvent(RasThreadQuit)"));
1052
1053 CleanUpThreadData();
1054
1055 ok = FALSE;
1056 }
1057 }
1058
1059 if ( ok && !ms_hwndRas )
1060 {
1061 // create a hidden window to receive notification about connections
1062 // status change
1063 extern const wxChar *wxCanvasClassName;
1064 ms_hwndRas = ::CreateWindow(wxCanvasClassName, NULL,
1065 0, 0, 0, 0,
1066 0, NULL,
1067 (HMENU)NULL, wxGetInstance(), 0);
1068 if ( !ms_hwndRas )
1069 {
1070 wxLogLastError(wxT("CreateWindow(RasHiddenWindow)"));
1071
1072 CleanUpThreadData();
1073
1074 ok = FALSE;
1075 }
1076
1077 // and subclass it
1078 wxSetWindowProc(ms_hwndRas, wxRasStatusWindowProc);
1079 }
1080
1081 m_data.hWnd = ms_hwndRas;
1082
1083 if ( ok )
1084 {
1085 // start the secondary thread
1086 m_data.dialUpManager = this;
1087
1088 DWORD tid;
1089 m_hThread = CreateThread
1090 (
1091 NULL,
1092 0,
1093 (LPTHREAD_START_ROUTINE)wxRasMonitorThread,
1094 (void *)&m_data,
1095 0,
1096 &tid
1097 );
1098
1099 if ( !m_hThread )
1100 {
1101 wxLogLastError(wxT("CreateThread(RasStatusThread)"));
1102
1103 CleanUpThreadData();
1104 }
1105 }
1106
1107 if ( ok )
1108 {
1109 // start receiving RAS notifications
1110 DWORD dwRet = ms_pfnRasConnectionNotification
1111 (
1112 (HRASCONN)INVALID_HANDLE_VALUE,
1113 m_data.hEventRas,
1114 3 /* RASCN_Connection | RASCN_Disconnection */
1115 );
1116
1117 if ( dwRet != 0 )
1118 {
1119 wxLogDebug(wxT("RasConnectionNotification() failed: %s"),
1120 GetErrorString(dwRet).c_str());
1121
1122 CleanUpThreadData();
1123 }
1124 else
1125 {
1126 return TRUE;
1127 }
1128 }
1129
1130 // we're running under Windows 95 and have to poll ourselves
1131 // (or, alternatively, the code above for NT/98 failed)
1132 m_timerStatusPolling.Stop();
1133 if ( nSeconds == 0 )
1134 {
1135 // default value
1136 nSeconds = 60;
1137 }
1138 m_timerStatusPolling.Start(nSeconds * 1000);
1139
1140 return TRUE;
1141 }
1142
1143 void wxDialUpManagerMSW::DisableAutoCheckOnlineStatus()
1144 {
1145 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1146
1147 if ( --m_autoCheckLevel )
1148 {
1149 // still checking
1150 return;
1151 }
1152
1153 if ( m_hThread )
1154 {
1155 // we have running secondary thread, it's just enough to suspend it
1156 if ( SuspendThread(m_hThread) == (DWORD)-1 )
1157 {
1158 wxLogLastError(wxT("SuspendThread(RasThread)"));
1159 }
1160 }
1161 else
1162 {
1163 // even simpler - just stop the timer
1164 m_timerStatusPolling.Stop();
1165 }
1166 }
1167
1168 // ----------------------------------------------------------------------------
1169 // stubs which don't do anything in MSW version
1170 // ----------------------------------------------------------------------------
1171
1172 void wxDialUpManagerMSW::SetWellKnownHost(const wxString& WXUNUSED(hostname),
1173 int WXUNUSED(port))
1174 {
1175 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1176
1177 // nothing to do - we don't use this
1178 }
1179
1180 void wxDialUpManagerMSW::SetConnectCommand(const wxString& WXUNUSED(dial),
1181 const wxString& WXUNUSED(hangup))
1182 {
1183 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1184
1185 // nothing to do - we don't use this
1186 }
1187
1188 // ----------------------------------------------------------------------------
1189 // callbacks
1190 // ----------------------------------------------------------------------------
1191
1192 static DWORD wxRasMonitorThread(wxRasThreadData *data)
1193 {
1194 HANDLE handles[2];
1195 handles[0] = data->hEventRas;
1196 handles[1] = data->hEventQuit;
1197
1198 bool cont = TRUE;
1199 while ( cont )
1200 {
1201 DWORD dwRet = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
1202
1203 switch ( dwRet )
1204 {
1205 case WAIT_OBJECT_0:
1206 // RAS connection status changed
1207 SendMessage(data->hWnd, wxWM_RAS_STATUS_CHANGED,
1208 0, (LPARAM)data);
1209 break;
1210
1211 case WAIT_OBJECT_0 + 1:
1212 cont = FALSE;
1213 break;
1214
1215 case WAIT_FAILED:
1216 wxLogLastError(wxT("WaitForMultipleObjects(RasMonitor)"));
1217 break;
1218 }
1219 }
1220
1221 return 0;
1222 }
1223
1224 static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
1225 WPARAM wParam, LPARAM lParam)
1226 {
1227 switch ( message )
1228 {
1229 case wxWM_RAS_STATUS_CHANGED:
1230 {
1231 wxRasThreadData *data = (wxRasThreadData *)lParam;
1232 data->dialUpManager->OnConnectStatusChange();
1233 }
1234 break;
1235
1236 case wxWM_RAS_DIALING_PROGRESS:
1237 {
1238 wxDialUpManagerMSW *dialMan = wxDialUpManagerMSW::GetDialer();
1239
1240 dialMan->OnDialProgress((RASCONNSTATE)wParam, lParam);
1241 }
1242 break;
1243
1244 default:
1245 return ::DefWindowProc(hWnd, message, wParam, lParam);
1246 }
1247
1248 return 0;
1249 }
1250
1251 static void WINAPI wxRasDialFunc(UINT WXUNUSED(unMsg),
1252 RASCONNSTATE rasconnstate,
1253 DWORD dwError)
1254 {
1255 wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
1256
1257 wxCHECK_RET( dialUpManager, wxT("who started to dial then?") );
1258
1259 SendMessage(dialUpManager->GetRasWindow(), wxWM_RAS_DIALING_PROGRESS,
1260 rasconnstate, dwError);
1261 }
1262
1263 #endif // __BORLANDC__
1264
1265 #endif // wxUSE_DIALUP_MANAGER
1266