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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/timer.h"
42 #include "wx/app.h"
43 #include "wx/generic/choicdgg.h"
44
45 #include "wx/msw/private.h" // must be before #include "dynlib.h"
46
47 #if !wxUSE_DYNLIB_CLASS
48 #error You need wxUSE_DYNLIB_CLASS to be 1 to compile dialup.cpp.
49 #endif
50
51 #include "wx/dynlib.h"
52
53 #include "wx/dialup.h"
54
55 // Doesn't yet compile under VC++ 4, BC++, mingw, Watcom C++: no wininet.h
56 #if !defined(__BORLANDC__) && !defined(__GNUWIN32_OLD__) && !defined(__GNUWIN32__) && !defined(__WATCOMC__) && ! (defined(__VISUALC__) && (__VISUALC__ < 1020))
57
58 #include <ras.h>
59 #include <raserror.h>
60
61 #include <wininet.h>
62
63 // Not in VC++ 5
64 #ifndef INTERNET_CONNECTION_LAN
65 #define INTERNET_CONNECTION_LAN 2
66 #endif
67 #ifndef INTERNET_CONNECTION_PROXY
68 #define INTERNET_CONNECTION_PROXY 4
69 #endif
70
71 // ----------------------------------------------------------------------------
72 // constants
73 // ----------------------------------------------------------------------------
74
75 // this message is sent by the secondary thread when RAS status changes
76 #define wxWM_RAS_STATUS_CHANGED (WM_USER + 10010)
77 #define wxWM_RAS_DIALING_PROGRESS (WM_USER + 10011)
78
79 // ----------------------------------------------------------------------------
80 // types
81 // ----------------------------------------------------------------------------
82
83 // the signatures of RAS functions: all this is quite heavy, but we must do it
84 // to allow running wxWin programs on machine which don't have RAS installed
85 // (this does exist) - if we link with rasapi32.lib, the program will fail on
86 // startup because of the missing DLL...
87
88 #ifndef UNICODE
89 typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCSTR, LPRASDIALPARAMSA, DWORD, LPVOID, LPHRASCONN );
90 typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNA, LPDWORD, LPDWORD );
91 typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCSTR, LPCSTR, LPRASENTRYNAMEA, LPDWORD, LPDWORD );
92 typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSA );
93 typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPSTR, DWORD );
94 typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
95 typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
96 typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCSTR );
97 typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCSTR, LPCSTR );
98 typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, BOOL );
99 typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, LPBOOL );
100 typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOA, LPDWORD, LPDWORD );
101 typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOA, LPDWORD );
102 typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, LPDWORD, LPBYTE, LPDWORD );
103 typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, DWORD, LPBYTE, DWORD );
104 typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCSTR, LPCSTR, LPCSTR );
105 typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCSTR, LPCSTR );
106 typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCSTR, LPCSTR );
107 typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
108
109 static const wxChar gs_funcSuffix = _T('A');
110 #else // Unicode
111 typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCWSTR, LPRASDIALPARAMSW, DWORD, LPVOID, LPHRASCONN );
112 typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNW, LPDWORD, LPDWORD );
113 typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCWSTR, LPCWSTR, LPRASENTRYNAMEW, LPDWORD, LPDWORD );
114 typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSW );
115 typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPWSTR, DWORD );
116 typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
117 typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
118 typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCWSTR );
119 typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCWSTR, LPCWSTR );
120 typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, BOOL );
121 typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, LPBOOL );
122 typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOW, LPDWORD, LPDWORD );
123 typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOW, LPDWORD );
124 typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, LPDWORD, LPBYTE, LPDWORD );
125 typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, DWORD, LPBYTE, DWORD );
126 typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCWSTR, LPCWSTR, LPCWSTR );
127 typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCWSTR, LPCWSTR );
128 typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCWSTR, LPCWSTR );
129 typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
130
131 static const wxChar gs_funcSuffix = _T('W');
132 #endif // ASCII/Unicode
133
134 // structure passed to the secondary thread
135 struct WXDLLEXPORT wxRasThreadData
136 {
137 wxRasThreadData()
138 {
139 hWnd = 0;
140 hEventRas = hEventQuit = INVALID_HANDLE_VALUE;
141 dialUpManager = NULL;
142 }
143
144 HWND hWnd; // window to send notifications to
145 HANDLE hEventRas, // event which RAS signals when status changes
146 hEventQuit; // event which we signal when we terminate
147
148 class WXDLLEXPORT wxDialUpManagerMSW *dialUpManager; // the owner
149 };
150
151 // ----------------------------------------------------------------------------
152 // wxDialUpManager class for MSW
153 // ----------------------------------------------------------------------------
154
155 class WXDLLEXPORT wxDialUpManagerMSW : public wxDialUpManager
156 {
157 public:
158 // ctor & dtor
159 wxDialUpManagerMSW();
160 virtual ~wxDialUpManagerMSW();
161
162 // implement base class pure virtuals
163 virtual bool IsOk() const;
164 virtual size_t GetISPNames(wxArrayString& names) const;
165 virtual bool Dial(const wxString& nameOfISP,
166 const wxString& username,
167 const wxString& password,
168 bool async);
169 virtual bool IsDialing() const;
170 virtual bool CancelDialing();
171 virtual bool HangUp();
172 virtual bool IsAlwaysOnline() const;
173 virtual bool IsOnline() const;
174 virtual void SetOnlineStatus(bool isOnline = TRUE);
175 virtual bool EnableAutoCheckOnlineStatus(size_t nSeconds);
176 virtual void DisableAutoCheckOnlineStatus();
177 virtual void SetWellKnownHost(const wxString& hostname, int port);
178 virtual void SetConnectCommand(const wxString& commandDial,
179 const wxString& commandHangup);
180
181 // for RasTimer
182 void CheckRasStatus();
183
184 // for wxRasStatusWindowProc
185 void OnConnectStatusChange();
186 void OnDialProgress(RASCONNSTATE rasconnstate, DWORD dwError);
187
188 // for wxRasDialFunc
189 static HWND GetRasWindow() { return ms_hwndRas; }
190 static wxDialUpManagerMSW *GetDialer() { return ms_dialer; }
191
192 private:
193 // return the error string for the given RAS error code
194 static wxString GetErrorString(DWORD error);
195
196 // find the (first) handle of the active connection
197 static HRASCONN FindActiveConnection();
198
199 // notify the application about status change
200 void NotifyApp(bool connected, bool fromOurselves = FALSE) const;
201
202 // destroy the thread data and the thread itself
203 void CleanUpThreadData();
204
205 // timer used for polling RAS status
206 class WXDLLEXPORT RasTimer : public wxTimer
207 {
208 public:
209 RasTimer(wxDialUpManagerMSW *dialUpManager)
210 { m_dialUpManager = dialUpManager; }
211
212 virtual void Notify() { m_dialUpManager->CheckRasStatus(); }
213
214 private:
215 wxDialUpManagerMSW *m_dialUpManager;
216 } m_timerStatusPolling;
217
218 // thread handle for the thread sitting on connection change event
219 HANDLE m_hThread;
220
221 // data used by this thread and our hidden window to send messages between
222 // each other
223 wxRasThreadData m_data;
224
225 // the hidden window we use for passing messages between threads
226 static HWND ms_hwndRas;
227
228 // the handle of the connection we initiated or 0 if none
229 static HRASCONN ms_hRasConnection;
230
231 // the use count of rasapi32.dll
232 static int ms_nDllCount;
233
234 // the handle of rasapi32.dll when it's loaded
235 static wxDllType ms_dllRas;
236
237 // the pointers to RAS functions
238 static RASDIAL ms_pfnRasDial;
239 static RASENUMCONNECTIONS ms_pfnRasEnumConnections;
240 static RASENUMENTRIES ms_pfnRasEnumEntries;
241 static RASGETCONNECTSTATUS ms_pfnRasGetConnectStatus;
242 static RASGETERRORSTRING ms_pfnRasGetErrorString;
243 static RASHANGUP ms_pfnRasHangUp;
244 static RASGETPROJECTIONINFO ms_pfnRasGetProjectionInfo;
245 static RASCREATEPHONEBOOKENTRY ms_pfnRasCreatePhonebookEntry;
246 static RASEDITPHONEBOOKENTRY ms_pfnRasEditPhonebookEntry;
247 static RASSETENTRYDIALPARAMS ms_pfnRasSetEntryDialParams;
248 static RASGETENTRYDIALPARAMS ms_pfnRasGetEntryDialParams;
249 static RASENUMDEVICES ms_pfnRasEnumDevices;
250 static RASGETCOUNTRYINFO ms_pfnRasGetCountryInfo;
251 static RASGETENTRYPROPERTIES ms_pfnRasGetEntryProperties;
252 static RASSETENTRYPROPERTIES ms_pfnRasSetEntryProperties;
253 static RASRENAMEENTRY ms_pfnRasRenameEntry;
254 static RASDELETEENTRY ms_pfnRasDeleteEntry;
255 static RASVALIDATEENTRYNAME ms_pfnRasValidateEntryName;
256
257 // this function is not supported by Win95
258 static RASCONNECTIONNOTIFICATION ms_pfnRasConnectionNotification;
259
260 // if this flag is different from -1, it overrides IsOnline()
261 static int ms_userSpecifiedOnlineStatus;
262
263 // this flag tells us if we're online
264 static int ms_isConnected;
265
266 // this flag is the result of the call to IsAlwaysOnline() (-1 if not
267 // called yet)
268 static int ms_isAlwaysOnline;
269
270 // this flag tells us whether a call to RasDial() is in progress
271 static wxDialUpManagerMSW *ms_dialer;
272 };
273
274 // ----------------------------------------------------------------------------
275 // private functions
276 // ----------------------------------------------------------------------------
277
278 static LRESULT WINAPI wxRasStatusWindowProc(HWND hWnd, UINT message,
279 WPARAM wParam, LPARAM lParam);
280
281 static DWORD wxRasMonitorThread(wxRasThreadData *data);
282
283 static void WINAPI wxRasDialFunc(UINT unMsg,
284 RASCONNSTATE rasconnstate,
285 DWORD dwError);
286
287 // ============================================================================
288 // implementation
289 // ============================================================================
290
291 // ----------------------------------------------------------------------------
292 // init the static variables
293 // ----------------------------------------------------------------------------
294
295 HRASCONN wxDialUpManagerMSW::ms_hRasConnection = 0;
296
297 HWND wxDialUpManagerMSW::ms_hwndRas = 0;
298
299 int wxDialUpManagerMSW::ms_nDllCount = 0;
300 wxDllType wxDialUpManagerMSW::ms_dllRas = 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 int wxDialUpManagerMSW::ms_isAlwaysOnline = -1;
325 wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
326
327 // ----------------------------------------------------------------------------
328 // ctor and dtor: the dynamic linking happens here
329 // ----------------------------------------------------------------------------
330
331 // the static creator function is implemented here
332 wxDialUpManager *wxDialUpManager::Create()
333 {
334 return new wxDialUpManagerMSW;
335 }
336
337 #ifdef __VISUALC__
338 // warning about "'this' : used in base member initializer list" - so what?
339 #pragma warning(disable:4355)
340 #endif // VC++
341
342 wxDialUpManagerMSW::wxDialUpManagerMSW()
343 : m_timerStatusPolling(this)
344 {
345 // initialize our data
346 m_hThread = 0;
347
348 if ( !ms_nDllCount++ )
349 {
350 // load the RAS library
351 ms_dllRas = wxDllLoader::LoadLibrary("RASAPI32");
352 if ( !ms_dllRas )
353 {
354 wxLogError(_("Dial up functions are unavailable because the remote access service (RAS) is not installed on this machine. Please install it."));
355 }
356 else
357 {
358 // resolve the functions we need
359
360 // this will contain the name of the function we failed to resolve
361 // if any at the end
362 const char *funcName = NULL;
363
364 // get the function from rasapi32.dll and abort if it's not found
365 #define RESOLVE_RAS_FUNCTION(type, name) \
366 ms_pfn##name = (type)wxDllLoader::GetSymbol(ms_dllRas, \
367 wxString(_T(#name)) + gs_funcSuffix); \
368 if ( !ms_pfn##name ) \
369 { \
370 funcName = #name; \
371 goto exit; \
372 }
373
374 // a variant of above macro which doesn't abort if the function is
375 // not found in the DLL
376 #define RESOLVE_OPTIONAL_RAS_FUNCTION(type, name) \
377 ms_pfn##name = (type)wxDllLoader::GetSymbol(ms_dllRas, \
378 wxString(_T(#name)) + gs_funcSuffix);
379
380 RESOLVE_RAS_FUNCTION(RASDIAL, RasDial);
381 RESOLVE_RAS_FUNCTION(RASENUMCONNECTIONS, RasEnumConnections);
382 RESOLVE_RAS_FUNCTION(RASENUMENTRIES, RasEnumEntries);
383 RESOLVE_RAS_FUNCTION(RASGETCONNECTSTATUS, RasGetConnectStatus);
384 RESOLVE_RAS_FUNCTION(RASGETERRORSTRING, RasGetErrorString);
385 RESOLVE_RAS_FUNCTION(RASHANGUP, RasHangUp);
386 RESOLVE_RAS_FUNCTION(RASGETENTRYDIALPARAMS, RasGetEntryDialParams);
387
388 // suppress wxDllLoader messages about missing (non essential)
389 // functions
390 {
391 wxLogNull noLog;
392
393 RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETPROJECTIONINFO, RasGetProjectionInfo);
394 RESOLVE_OPTIONAL_RAS_FUNCTION(RASCREATEPHONEBOOKENTRY, RasCreatePhonebookEntry);
395 RESOLVE_OPTIONAL_RAS_FUNCTION(RASEDITPHONEBOOKENTRY, RasEditPhonebookEntry);
396 RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYDIALPARAMS, RasSetEntryDialParams);
397 RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETENTRYPROPERTIES, RasGetEntryProperties);
398 RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYPROPERTIES, RasSetEntryProperties);
399 RESOLVE_OPTIONAL_RAS_FUNCTION(RASRENAMEENTRY, RasRenameEntry);
400 RESOLVE_OPTIONAL_RAS_FUNCTION(RASDELETEENTRY, RasDeleteEntry);
401 RESOLVE_OPTIONAL_RAS_FUNCTION(RASVALIDATEENTRYNAME, RasValidateEntryName);
402 RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETCOUNTRYINFO, RasGetCountryInfo);
403 RESOLVE_OPTIONAL_RAS_FUNCTION(RASENUMDEVICES, RasEnumDevices);
404 RESOLVE_OPTIONAL_RAS_FUNCTION(RASCONNECTIONNOTIFICATION, RasConnectionNotification);
405 }
406
407 // keep your preprocessor name space clean
408 #undef RESOLVE_RAS_FUNCTION
409 #undef RESOLVE_OPTIONAL_RAS_FUNCTION
410
411 exit:
412 if ( funcName )
413 {
414 static const wxChar *msg = wxTRANSLATE(
415 "The version of remote access service (RAS) installed on this machine is too\
416 old, please upgrade (the following required function is missing: %s)."
417 );
418
419 wxLogError(wxGetTranslation(msg), funcName);
420
421 wxDllLoader::UnloadLibrary(ms_dllRas);
422 ms_dllRas = 0;
423 ms_nDllCount = 0;
424
425 return;
426 }
427 }
428 }
429
430 // enable auto check by default
431 EnableAutoCheckOnlineStatus(0);
432 }
433
434 wxDialUpManagerMSW::~wxDialUpManagerMSW()
435 {
436 CleanUpThreadData();
437
438 if ( !--ms_nDllCount )
439 {
440 // unload the RAS library
441 wxDllLoader::UnloadLibrary(ms_dllRas);
442 ms_dllRas = 0;
443 }
444 }
445
446 // ----------------------------------------------------------------------------
447 // helper functions
448 // ----------------------------------------------------------------------------
449
450 wxString wxDialUpManagerMSW::GetErrorString(DWORD error)
451 {
452 wxChar buffer[512]; // this should be more than enough according to MS docs
453 DWORD dwRet = ms_pfnRasGetErrorString(error, buffer, WXSIZEOF(buffer));
454 switch ( dwRet )
455 {
456 case ERROR_INVALID_PARAMETER:
457 // this was a standard Win32 error probably
458 return wxString(wxSysErrorMsg(error));
459
460 default:
461 {
462 wxLogSysError(dwRet,
463 _("Failed to retrieve text of RAS error message"));
464
465 wxString msg;
466 msg.Printf(_("unknown error (error code %08x)."), error);
467 return msg;
468 }
469
470 case 0:
471 // we want the error message to start from a lower case letter
472 buffer[0] = wxTolower(buffer[0]);
473
474 return wxString(buffer);
475 }
476 }
477
478 HRASCONN wxDialUpManagerMSW::FindActiveConnection()
479 {
480 // enumerate connections
481 DWORD cbBuf = sizeof(RASCONN);
482 LPRASCONN lpRasConn = (LPRASCONN)malloc(cbBuf);
483 if ( !lpRasConn )
484 {
485 // out of memory
486 return 0;
487 }
488
489 lpRasConn->dwSize = sizeof(RASCONN);
490
491 DWORD nConnections = 0;
492 DWORD dwRet = ERROR_BUFFER_TOO_SMALL;
493
494 while ( dwRet == ERROR_BUFFER_TOO_SMALL )
495 {
496 dwRet = ms_pfnRasEnumConnections(lpRasConn, &cbBuf, &nConnections);
497
498 if ( dwRet == ERROR_BUFFER_TOO_SMALL )
499 {
500 LPRASCONN lpRasConnOld = lpRasConn;
501 lpRasConn = (LPRASCONN)realloc(lpRasConn, cbBuf);
502 if ( !lpRasConn )
503 {
504 // out of memory
505 free(lpRasConnOld);
506
507 return 0;
508 }
509 }
510 else if ( dwRet == 0 )
511 {
512 // ok, success
513 break;
514 }
515 else
516 {
517 // an error occured
518 wxLogError(_("Cannot find active dialup connection: %s"),
519 GetErrorString(dwRet).c_str());
520 return 0;
521 }
522 }
523
524 HRASCONN hrasconn;
525
526 switch ( nConnections )
527 {
528 case 0:
529 // no connections
530 hrasconn = 0;
531 break;
532
533 default:
534 // more than 1 connection - we don't know what to do with this
535 // case, so give a warning but continue (taking the first
536 // connection) - the warning is really needed because this function
537 // is used, for example, to select the connection to hang up and so
538 // we may hang up the wrong connection here...
539 wxLogWarning(_("Several active dialup connections found, choosing one randomly."));
540 // fall through
541
542 case 1:
543 // exactly 1 connection, great
544 hrasconn = lpRasConn->hrasconn;
545 }
546
547 free(lpRasConn);
548
549 return hrasconn;
550 }
551
552 void wxDialUpManagerMSW::CleanUpThreadData()
553 {
554 if ( m_hThread )
555 {
556 if ( !SetEvent(m_data.hEventQuit) )
557 {
558 wxLogLastError(_T("SetEvent(RasThreadQuit)"));
559 }
560
561 CloseHandle(m_hThread);
562
563 m_hThread = 0;
564 }
565
566 if ( m_data.hWnd )
567 {
568 DestroyWindow(m_data.hWnd);
569
570 m_data.hWnd = 0;
571 }
572
573 if ( m_data.hEventQuit )
574 {
575 CloseHandle(m_data.hEventQuit);
576
577 m_data.hEventQuit = 0;
578 }
579
580 if ( m_data.hEventRas )
581 {
582 CloseHandle(m_data.hEventRas);
583
584 m_data.hEventRas = 0;
585 }
586 }
587
588 // ----------------------------------------------------------------------------
589 // connection status
590 // ----------------------------------------------------------------------------
591
592 void wxDialUpManagerMSW::CheckRasStatus()
593 {
594 // use int, not bool to compare with -1
595 int isConnected = FindActiveConnection() != 0;
596 if ( isConnected != ms_isConnected )
597 {
598 if ( ms_isConnected != -1 )
599 {
600 // notify the program
601 NotifyApp(isConnected != 0);
602 }
603 // else: it's the first time we're called, just update the flag
604
605 ms_isConnected = isConnected;
606 }
607 }
608
609 void wxDialUpManagerMSW::NotifyApp(bool connected, bool fromOurselves) const
610 {
611 wxDialUpEvent event(connected, fromOurselves);
612 (void)wxTheApp->ProcessEvent(event);
613 }
614
615 // this function is called whenever the status of any RAS connection on this
616 // machine changes by RAS itself
617 void wxDialUpManagerMSW::OnConnectStatusChange()
618 {
619 // we know that status changed, but we don't know whether we're connected
620 // or not - so find it out
621 CheckRasStatus();
622 }
623
624 // this function is called by our callback which we give to RasDial() when
625 // calling it asynchronously
626 void wxDialUpManagerMSW::OnDialProgress(RASCONNSTATE rasconnstate,
627 DWORD dwError)
628 {
629 if ( !GetDialer() )
630 {
631 // this probably means that CancelDialing() was called and we get
632 // "disconnected" notification
633 return;
634 }
635
636 // we're only interested in 2 events: connected and disconnected
637 if ( dwError )
638 {
639 wxLogError(_("Failed to establish dialup connection: %s"),
640 GetErrorString(dwError).c_str());
641
642 // we should still call RasHangUp() if we got a non 0 connection
643 if ( ms_hRasConnection )
644 {
645 ms_pfnRasHangUp(ms_hRasConnection);
646 ms_hRasConnection = 0;
647 }
648
649 ms_dialer = NULL;
650
651 NotifyApp(FALSE /* !connected */, TRUE /* we dialed ourselves */);
652 }
653 else if ( rasconnstate == RASCS_Connected )
654 {
655 ms_isConnected = TRUE;
656 ms_dialer = NULL;
657
658 NotifyApp(TRUE /* connected */, TRUE /* we dialed ourselves */);
659 }
660 }
661
662 // ----------------------------------------------------------------------------
663 // implementation of wxDialUpManager functions
664 // ----------------------------------------------------------------------------
665
666 bool wxDialUpManagerMSW::IsOk() const
667 {
668 return ms_dllRas != 0;
669 }
670
671 size_t wxDialUpManagerMSW::GetISPNames(wxArrayString& names) const
672 {
673 // fetch the entries
674 DWORD size = sizeof(RASENTRYNAME);
675 RASENTRYNAME *rasEntries = (RASENTRYNAME *)malloc(size);
676 rasEntries->dwSize = sizeof(RASENTRYNAME);
677
678 DWORD nEntries;
679 DWORD dwRet;
680 do
681 {
682 dwRet = ms_pfnRasEnumEntries
683 (
684 NULL, // reserved
685 NULL, // default phone book (or all)
686 rasEntries, // [out] buffer for the entries
687 &size, // [in/out] size of the buffer
688 &nEntries // [out] number of entries fetched
689 );
690
691 if ( dwRet == ERROR_BUFFER_TOO_SMALL )
692 {
693 // reallocate the buffer
694 rasEntries = (RASENTRYNAME *)realloc(rasEntries, size);
695 }
696 else if ( dwRet != 0 )
697 {
698 // some other error - abort
699 wxLogError(_("Failed to get ISP names: %s"),
700 GetErrorString(dwRet).c_str());
701
702 free(rasEntries);
703
704 return 0u;
705 }
706 }
707 while ( dwRet != 0 );
708
709 // process them
710 names.Empty();
711 for ( size_t n = 0; n < (size_t)nEntries; n++ )
712 {
713 names.Add(rasEntries[n].szEntryName);
714 }
715
716 free(rasEntries);
717
718 // return the number of entries
719 return names.GetCount();
720 }
721
722 bool wxDialUpManagerMSW::Dial(const wxString& nameOfISP,
723 const wxString& username,
724 const wxString& password,
725 bool async)
726 {
727 // check preconditions
728 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
729
730 if ( ms_hRasConnection )
731 {
732 wxFAIL_MSG(wxT("there is already an active connection"));
733
734 return TRUE;
735 }
736
737 // get the default ISP if none given
738 wxString entryName(nameOfISP);
739 if ( !entryName )
740 {
741 wxArrayString names;
742 size_t count = GetISPNames(names);
743 switch ( count )
744 {
745 case 0:
746 // no known ISPs, abort
747 wxLogError(_("Failed to connect: no ISP to dial."));
748
749 return FALSE;
750
751 case 1:
752 // only one ISP, choose it
753 entryName = names[0u];
754 break;
755
756 default:
757 // several ISPs, let the user choose
758 {
759 wxString *strings = new wxString[count];
760 for ( size_t i = 0; i < count; i++ )
761 {
762 strings[i] = names[i];
763 }
764
765 entryName = wxGetSingleChoice
766 (
767 _("Choose ISP to dial"),
768 _("Please choose which ISP do you want to connect to"),
769 count,
770 strings
771 );
772
773 delete [] strings;
774
775 if ( !entryName )
776 {
777 // cancelled by user
778 return FALSE;
779 }
780 }
781 }
782 }
783
784 RASDIALPARAMS rasDialParams;
785 rasDialParams.dwSize = sizeof(rasDialParams);
786 wxStrncpy(rasDialParams.szEntryName, entryName, RAS_MaxEntryName);
787
788 // do we have the username and password?
789 if ( !username || !password )
790 {
791 BOOL gotPassword;
792 DWORD dwRet = ms_pfnRasGetEntryDialParams
793 (
794 NULL, // default phonebook
795 &rasDialParams, // [in/out] the params of this entry
796 &gotPassword // [out] did we get password?
797 );
798
799 if ( dwRet != 0 )
800 {
801 wxLogError(_("Failed to connect: missing username/password."));
802
803 return FALSE;
804 }
805 }
806 else
807 {
808 wxStrncpy(rasDialParams.szUserName, username, UNLEN);
809 wxStrncpy(rasDialParams.szPassword, password, PWLEN);
810 }
811
812 // default values for other fields
813 rasDialParams.szPhoneNumber[0] = '\0';
814 rasDialParams.szCallbackNumber[0] = '\0';
815 rasDialParams.szCallbackNumber[0] = '\0';
816
817 rasDialParams.szDomain[0] = '*';
818 rasDialParams.szDomain[1] = '\0';
819
820 // apparently, this is not really necessary - passing NULL instead of the
821 // phone book has the same effect
822 #if 0
823 wxString phoneBook;
824 if ( wxGetOsVersion() == wxWINDOWS_NT )
825 {
826 // first get the length
827 UINT nLen = ::GetSystemDirectory(NULL, 0);
828 nLen++;
829
830 if ( !::GetSystemDirectory(phoneBook.GetWriteBuf(nLen), nLen) )
831 {
832 wxLogSysError(_("Cannot find the location of address book file"));
833 }
834
835 phoneBook.UngetWriteBuf();
836
837 // this is the default phone book
838 phoneBook << "\\ras\\rasphone.pbk";
839 }
840 #endif // 0
841
842 // TODO may be we should disable auto check while async dialing is in
843 // progress?
844
845 ms_dialer = this;
846
847 DWORD dwRet = ms_pfnRasDial
848 (
849 (LPRASDIALEXTENSIONS)NULL, // no extended features
850 NULL, // default phone book file (NT only)
851 &rasDialParams,
852 0, // use callback for notifications
853 async ? wxRasDialFunc // the callback
854 : 0, // no notifications - sync operation
855 &ms_hRasConnection
856 );
857
858 if ( dwRet != 0 )
859 {
860 wxLogError(_("Failed to %s dialup connection: %s"),
861 async ? _("initiate") : _("establish"),
862 GetErrorString(dwRet).c_str());
863
864 // we should still call RasHangUp() if we got a non 0 connection
865 if ( ms_hRasConnection )
866 {
867 ms_pfnRasHangUp(ms_hRasConnection);
868 ms_hRasConnection = 0;
869 }
870
871 ms_dialer = NULL;
872
873 return FALSE;
874 }
875
876 // for async dialing, we're not yet connected
877 if ( !async )
878 {
879 ms_isConnected = TRUE;
880 }
881
882 return TRUE;
883 }
884
885 bool wxDialUpManagerMSW::IsDialing() const
886 {
887 return GetDialer() != NULL;
888 }
889
890 bool wxDialUpManagerMSW::CancelDialing()
891 {
892 if ( !GetDialer() )
893 {
894 // silently ignore
895 return FALSE;
896 }
897
898 wxASSERT_MSG( ms_hRasConnection, wxT("dialing but no connection?") );
899
900 ms_dialer = NULL;
901
902 return HangUp();
903 }
904
905 bool wxDialUpManagerMSW::HangUp()
906 {
907 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
908
909 // we may terminate either the connection we initiated or another one which
910 // is active now
911 HRASCONN hRasConn;
912 if ( ms_hRasConnection )
913 {
914 hRasConn = ms_hRasConnection;
915
916 ms_hRasConnection = 0;
917 }
918 else
919 {
920 hRasConn = FindActiveConnection();
921 }
922
923 if ( !hRasConn )
924 {
925 wxLogError(_("Cannot hang up - no active dialup connection."));
926
927 return FALSE;
928 }
929
930 DWORD dwRet = ms_pfnRasHangUp(hRasConn);
931 if ( dwRet != 0 )
932 {
933 wxLogError(_("Failed to terminate the dialup connection: %s"),
934 GetErrorString(dwRet).c_str());
935 }
936
937 ms_isConnected = FALSE;
938
939 return TRUE;
940 }
941
942 bool wxDialUpManagerMSW::IsAlwaysOnline() const
943 {
944 // we cache the result (presumably this won't change while the program is
945 // running!)
946 if ( ms_isAlwaysOnline != -1 )
947 {
948 return ms_isAlwaysOnline != 0;
949 }
950
951 // try to use WinInet function first
952 bool ok;
953 wxDllType hDll = wxDllLoader::LoadLibrary(_T("WININET"), &ok);
954 if ( ok )
955 {
956 typedef BOOL (*INTERNETGETCONNECTEDSTATE)(LPDWORD, DWORD);
957 INTERNETGETCONNECTEDSTATE pfnInternetGetConnectedState;
958
959 #define RESOLVE_FUNCTION(type, name) \
960 pfn##name = (type)wxDllLoader::GetSymbol(hDll, _T(#name))
961
962 RESOLVE_FUNCTION(INTERNETGETCONNECTEDSTATE, InternetGetConnectedState);
963
964 if ( pfnInternetGetConnectedState )
965 {
966 DWORD flags = 0;
967 if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
968 {
969 // there is some connection to the net, see of which type
970 ms_isAlwaysOnline = (flags & INTERNET_CONNECTION_LAN != 0) ||
971 (flags & INTERNET_CONNECTION_PROXY != 0);
972 }
973 else
974 {
975 // no Internet connection at all
976 ms_isAlwaysOnline = FALSE;
977 }
978 }
979
980 wxDllLoader::UnloadLibrary(hDll);
981 }
982
983 // did we succeed with WinInet? if not, try something else
984 if ( ms_isAlwaysOnline == -1 )
985 {
986 if ( !IsOnline() )
987 {
988 // definitely no permanent connection because we are not connected
989 // now
990 ms_isAlwaysOnline = FALSE;
991 }
992 else
993 {
994 // of course, having a modem doesn't prevent us from having a
995 // permanent connection as well, but we have to guess somehow and
996 // it's probably more common that a system connected via a modem
997 // doesn't have any other net access, so:
998 ms_isAlwaysOnline = FALSE;
999 }
1000 }
1001
1002 wxASSERT_MSG( ms_isAlwaysOnline != -1, wxT("logic error") );
1003
1004 return ms_isAlwaysOnline != 0;
1005 }
1006
1007 bool wxDialUpManagerMSW::IsOnline() const
1008 {
1009 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
1010
1011 if ( ms_userSpecifiedOnlineStatus != -1 )
1012 {
1013 // user specified flag overrides our logic
1014 return ms_userSpecifiedOnlineStatus != 0;
1015 }
1016 else
1017 {
1018 // return TRUE if there is at least one active connection
1019 return FindActiveConnection() != 0;
1020 }
1021 }
1022
1023 void wxDialUpManagerMSW::SetOnlineStatus(bool isOnline)
1024 {
1025 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1026
1027 ms_userSpecifiedOnlineStatus = isOnline;
1028 }
1029
1030 bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
1031 {
1032 wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
1033
1034 bool ok = ms_pfnRasConnectionNotification != 0;
1035
1036 if ( ok )
1037 {
1038 // we're running under NT 4.0, Windows 98 or later and can use
1039 // RasConnectionNotification() to be notified by a secondary thread
1040
1041 // first, see if we don't have this thread already running
1042 if ( m_hThread != 0 )
1043 {
1044 DWORD dwSuspendCount = 2;
1045 while ( dwSuspendCount > 1 )
1046 {
1047 dwSuspendCount = ResumeThread(m_hThread);
1048 if ( dwSuspendCount == (DWORD)-1 )
1049 {
1050 wxLogLastError(wxT("ResumeThread(RasThread)"));
1051
1052 ok = FALSE;
1053 }
1054 }
1055
1056 if ( ok )
1057 {
1058 return TRUE;
1059 }
1060 }
1061 }
1062
1063 // create all the stuff we need to be notified about RAS connection
1064 // status change
1065
1066 if ( ok )
1067 {
1068 // first create an event to wait on
1069 m_data.hEventRas = CreateEvent
1070 (
1071 NULL, // security attribute (default)
1072 FALSE, // manual reset (not)
1073 FALSE, // initial state (not signaled)
1074 NULL // name (no)
1075 );
1076 if ( !m_data.hEventRas )
1077 {
1078 wxLogLastError(wxT("CreateEvent(RasStatus)"));
1079
1080 ok = FALSE;
1081 }
1082 }
1083
1084 if ( ok )
1085 {
1086 // create the event we use to quit the thread
1087 m_data.hEventQuit = CreateEvent(NULL, FALSE, FALSE, NULL);
1088 if ( !m_data.hEventQuit )
1089 {
1090 wxLogLastError(wxT("CreateEvent(RasThreadQuit)"));
1091
1092 CleanUpThreadData();
1093
1094 ok = FALSE;
1095 }
1096 }
1097
1098 if ( ok && !ms_hwndRas )
1099 {
1100 // create a hidden window to receive notification about connections
1101 // status change
1102 extern const wxChar *wxPanelClassName;
1103 ms_hwndRas = ::CreateWindow(wxPanelClassName, NULL,
1104 0, 0, 0, 0,
1105 0, NULL,
1106 (HMENU)NULL, wxGetInstance(), 0);
1107 if ( !ms_hwndRas )
1108 {
1109 wxLogLastError(wxT("CreateWindow(RasHiddenWindow)"));
1110
1111 CleanUpThreadData();
1112
1113 ok = FALSE;
1114 }
1115
1116 // and subclass it
1117 FARPROC windowProc = MakeProcInstance
1118 (
1119 (FARPROC)wxRasStatusWindowProc,
1120 wxGetInstance()
1121 );
1122
1123 ::SetWindowLong(ms_hwndRas, GWL_WNDPROC, (LONG) windowProc);
1124 }
1125
1126 m_data.hWnd = ms_hwndRas;
1127
1128 if ( ok )
1129 {
1130 // start the secondary thread
1131 m_data.dialUpManager = this;
1132
1133 DWORD tid;
1134 m_hThread = CreateThread
1135 (
1136 NULL,
1137 0,
1138 (LPTHREAD_START_ROUTINE)wxRasMonitorThread,
1139 (void *)&m_data,
1140 0,
1141 &tid
1142 );
1143
1144 if ( !m_hThread )
1145 {
1146 wxLogLastError(wxT("CreateThread(RasStatusThread)"));
1147
1148 CleanUpThreadData();
1149 }
1150 }
1151
1152 if ( ok )
1153 {
1154 // start receiving RAS notifications
1155 DWORD dwRet = ms_pfnRasConnectionNotification
1156 (
1157 (HRASCONN)INVALID_HANDLE_VALUE,
1158 m_data.hEventRas,
1159 3 /* RASCN_Connection | RASCN_Disconnection */
1160 );
1161
1162 if ( dwRet != 0 )
1163 {
1164 wxLogDebug(wxT("RasConnectionNotification() failed: %s"),
1165 GetErrorString(dwRet).c_str());
1166
1167 CleanUpThreadData();
1168 }
1169 else
1170 {
1171 return TRUE;
1172 }
1173 }
1174
1175 // we're running under Windows 95 and have to poll ourselves
1176 // (or, alternatively, the code above for NT/98 failed)
1177 m_timerStatusPolling.Stop();
1178 if ( nSeconds == 0 )
1179 {
1180 // default value
1181 nSeconds = 60;
1182 }
1183 m_timerStatusPolling.Start(nSeconds * 1000);
1184
1185 return TRUE;
1186 }
1187
1188 void wxDialUpManagerMSW::DisableAutoCheckOnlineStatus()
1189 {
1190 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1191
1192 if ( m_hThread )
1193 {
1194 // we have running secondary thread, it's just enough to suspend it
1195 if ( SuspendThread(m_hThread) == (DWORD)-1 )
1196 {
1197 wxLogLastError(wxT("SuspendThread(RasThread)"));
1198 }
1199 }
1200 else
1201 {
1202 // even simpler - just stop the timer
1203 m_timerStatusPolling.Stop();
1204 }
1205 }
1206
1207 // ----------------------------------------------------------------------------
1208 // stubs which don't do anything in MSW version
1209 // ----------------------------------------------------------------------------
1210
1211 void wxDialUpManagerMSW::SetWellKnownHost(const wxString& WXUNUSED(hostname),
1212 int WXUNUSED(port))
1213 {
1214 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1215
1216 // nothing to do - we don't use this
1217 }
1218
1219 void wxDialUpManagerMSW::SetConnectCommand(const wxString& WXUNUSED(dial),
1220 const wxString& WXUNUSED(hangup))
1221 {
1222 wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1223
1224 // nothing to do - we don't use this
1225 }
1226
1227 // ----------------------------------------------------------------------------
1228 // callbacks
1229 // ----------------------------------------------------------------------------
1230
1231 static DWORD wxRasMonitorThread(wxRasThreadData *data)
1232 {
1233 HANDLE handles[2];
1234 handles[0] = data->hEventRas;
1235 handles[1] = data->hEventQuit;
1236
1237 bool cont = TRUE;
1238 while ( cont )
1239 {
1240 DWORD dwRet = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
1241
1242 switch ( dwRet )
1243 {
1244 case WAIT_OBJECT_0:
1245 // RAS connection status changed
1246 SendMessage(data->hWnd, wxWM_RAS_STATUS_CHANGED,
1247 0, (LPARAM)data);
1248 break;
1249
1250 case WAIT_OBJECT_0 + 1:
1251 cont = FALSE;
1252 break;
1253
1254 case WAIT_FAILED:
1255 wxLogLastError(wxT("WaitForMultipleObjects(RasMonitor)"));
1256 break;
1257 }
1258 }
1259
1260 return 0;
1261 }
1262
1263 static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
1264 WPARAM wParam, LPARAM lParam)
1265 {
1266 if ( message == wxWM_RAS_STATUS_CHANGED )
1267 {
1268 wxRasThreadData *data = (wxRasThreadData *)lParam;
1269 data->dialUpManager->OnConnectStatusChange();
1270 }
1271 else if ( message == wxWM_RAS_DIALING_PROGRESS )
1272 {
1273 wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
1274
1275 dialUpManager->OnDialProgress((RASCONNSTATE)wParam, lParam);
1276 }
1277
1278 return 0;
1279 }
1280
1281 static void WINAPI wxRasDialFunc(UINT unMsg,
1282 RASCONNSTATE rasconnstate,
1283 DWORD dwError)
1284 {
1285 wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
1286
1287 wxCHECK_RET( dialUpManager, wxT("who started to dial then?") );
1288
1289 SendMessage(dialUpManager->GetRasWindow(), wxWM_RAS_DIALING_PROGRESS,
1290 rasconnstate, dwError);
1291 }
1292
1293 #endif
1294 // __BORLANDC__
1295 #endif // wxUSE_DIALUP_MANAGER