src/msw/dialup.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 #if wxUSE_DIALUP_MANAGER
  28
  29 #include "wx/dialup.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/log.h"
  33     #include "wx/intl.h"
  34     #include "wx/event.h"
  35     #include "wx/app.h"
  36     #include "wx/timer.h"
  37     #include "wx/module.h"
  38 #endif
  39
  40 #include "wx/generic/choicdgg.h"
  41
  42 #include "wx/dynlib.h"
  43
  44 DEFINE_EVENT_TYPE(wxEVT_DIALUP_CONNECTED)
  45 DEFINE_EVENT_TYPE(wxEVT_DIALUP_DISCONNECTED)
  46
  47 // Doesn't yet compile under VC++ 4, BC++, Watcom C++,
  48 // Wine: no wininet.h
  49 #if (!defined(__BORLANDC__) || (__BORLANDC__>=0x550)) && \
  50     (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION(0, 5)) && \
  51     !defined(__GNUWIN32_OLD__) && \
  52     !defined(__WINE__) && \
  53     (!defined(__VISUALC__) || (__VISUALC__ >= 1020))
  54
  55 #include <ras.h>
  56 #include <raserror.h>
  57
  58 #include <wininet.h>
  59
  60 // Not in VC++ 5
  61 #ifndef INTERNET_CONNECTION_LAN
  62 #define INTERNET_CONNECTION_LAN 2
  63 #endif
  64 #ifndef INTERNET_CONNECTION_PROXY
  65 #define INTERNET_CONNECTION_PROXY 4
  66 #endif
  67
  68 // implemented in utils.cpp
  69 extern "C" WXDLLIMPEXP_BASE HWND
  70 wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc);
  71
  72 static const wxChar *
  73     wxMSWDIALUP_WNDCLASSNAME = wxT("_wxDialUpManager_Internal_Class");
  74 static const wxChar *gs_classForDialUpWindow = NULL;
  75
  76 // ----------------------------------------------------------------------------
  77 // constants
  78 // ----------------------------------------------------------------------------
  79
  80 // this message is sent by the secondary thread when RAS status changes
  81 #define wxWM_RAS_STATUS_CHANGED (WM_USER + 10010)
  82 #define wxWM_RAS_DIALING_PROGRESS (WM_USER + 10011)
  83
  84 // ----------------------------------------------------------------------------
  85 // types
  86 // ----------------------------------------------------------------------------
  87
  88 // the signatures of RAS functions: all this is quite heavy, but we must do it
  89 // to allow running wxWin programs on machine which don't have RAS installed
  90 // (this does exist) - if we link with rasapi32.lib, the program will fail on
  91 // startup because of the missing DLL...
  92
  93 #ifndef UNICODE
  94     typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCSTR, LPRASDIALPARAMSA, DWORD, LPVOID, LPHRASCONN );
  95     typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNA, LPDWORD, LPDWORD );
  96     typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCSTR, LPCSTR, LPRASENTRYNAMEA, LPDWORD, LPDWORD );
  97     typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSA );
  98     typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPSTR, DWORD );
  99     typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
 100     typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
 101     typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCSTR );
 102     typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCSTR, LPCSTR );
 103     typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, BOOL );
 104     typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, LPBOOL );
 105     typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOA, LPDWORD, LPDWORD );
 106     typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOA, LPDWORD );
 107     typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, LPDWORD, LPBYTE, LPDWORD );
 108     typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, DWORD, LPBYTE, DWORD );
 109     typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCSTR, LPCSTR, LPCSTR );
 110     typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCSTR, LPCSTR );
 111     typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCSTR, LPCSTR );
 112     typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
 113
 114     static const wxChar gs_funcSuffix = _T('A');
 115 #else // Unicode
 116     typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCWSTR, LPRASDIALPARAMSW, DWORD, LPVOID, LPHRASCONN );
 117     typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNW, LPDWORD, LPDWORD );
 118     typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCWSTR, LPCWSTR, LPRASENTRYNAMEW, LPDWORD, LPDWORD );
 119     typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSW );
 120     typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPWSTR, DWORD );
 121     typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
 122     typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
 123     typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCWSTR );
 124     typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCWSTR, LPCWSTR );
 125     typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, BOOL );
 126     typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, LPBOOL );
 127     typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOW, LPDWORD, LPDWORD );
 128     typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOW, LPDWORD );
 129     typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, LPDWORD, LPBYTE, LPDWORD );
 130     typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, DWORD, LPBYTE, DWORD );
 131     typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCWSTR, LPCWSTR, LPCWSTR );
 132     typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCWSTR, LPCWSTR );
 133     typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCWSTR, LPCWSTR );
 134     typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
 135
 136     static const wxChar gs_funcSuffix = _T('W');
 137 #endif // ASCII/Unicode
 138
 139 // structure passed to the secondary thread
 140 struct WXDLLEXPORT wxRasThreadData
 141 {
 142     wxRasThreadData()
 143     {
 144         hWnd = 0;
 145         hEventRas =
 146         hEventQuit = 0;
 147         dialUpManager = NULL;
 148     }
 149
 150     ~wxRasThreadData()
 151     {
 152         if ( hWnd )
 153             DestroyWindow(hWnd);
 154
 155         if ( hEventQuit )
 156             CloseHandle(hEventQuit);
 157
 158         if ( hEventRas )
 159             CloseHandle(hEventRas);
 160     }
 161
 162     HWND    hWnd;       // window to send notifications to
 163     HANDLE  hEventRas,  // automatic event which RAS signals when status changes
 164             hEventQuit; // manual event which we signal when we terminate
 165
 166     class WXDLLEXPORT wxDialUpManagerMSW *dialUpManager;  // the owner
 167 };
 168
 169 // ----------------------------------------------------------------------------
 170 // wxDialUpManager class for MSW
 171 // ----------------------------------------------------------------------------
 172
 173 class WXDLLEXPORT wxDialUpManagerMSW : public wxDialUpManager
 174 {
 175 public:
 176     // ctor & dtor
 177     wxDialUpManagerMSW();
 178     virtual ~wxDialUpManagerMSW();
 179
 180     // implement base class pure virtuals
 181     virtual bool IsOk() const;
 182     virtual size_t GetISPNames(wxArrayString& names) const;
 183     virtual bool Dial(const wxString& nameOfISP,
 184                       const wxString& username,
 185                       const wxString& password,
 186                       bool async);
 187     virtual bool IsDialing() const;
 188     virtual bool CancelDialing();
 189     virtual bool HangUp();
 190     virtual bool IsAlwaysOnline() const;
 191     virtual bool IsOnline() const;
 192     virtual void SetOnlineStatus(bool isOnline = true);
 193     virtual bool EnableAutoCheckOnlineStatus(size_t nSeconds);
 194     virtual void DisableAutoCheckOnlineStatus();
 195     virtual void SetWellKnownHost(const wxString& hostname, int port);
 196     virtual void SetConnectCommand(const wxString& commandDial,
 197                                    const wxString& commandHangup);
 198
 199     // for RasTimer
 200     void CheckRasStatus();
 201
 202     // for wxRasStatusWindowProc
 203     void OnConnectStatusChange();
 204     void OnDialProgress(RASCONNSTATE rasconnstate, DWORD dwError);
 205
 206     // for wxRasDialFunc
 207     static HWND GetRasWindow() { return ms_hwndRas; }
 208     static void ResetRasWindow() { ms_hwndRas = NULL; }
 209     static wxDialUpManagerMSW *GetDialer() { return ms_dialer; }
 210
 211 private:
 212     // return the error string for the given RAS error code
 213     static wxString GetErrorString(DWORD error);
 214
 215     // find the (first) handle of the active connection
 216     static HRASCONN FindActiveConnection();
 217
 218     // notify the application about status change
 219     void NotifyApp(bool connected, bool fromOurselves = false) const;
 220
 221     // destroy the thread data and the thread itself
 222     void CleanUpThreadData();
 223
 224     // number of times EnableAutoCheckOnlineStatus() had been called minus the
 225     // number of times DisableAutoCheckOnlineStatus() had been called
 226     int m_autoCheckLevel;
 227
 228     // timer used for polling RAS status
 229     class WXDLLEXPORT RasTimer : public wxTimer
 230     {
 231     public:
 232         RasTimer(wxDialUpManagerMSW *dialUpManager)
 233             { m_dialUpManager = dialUpManager; }
 234
 235         virtual void Notify() { m_dialUpManager->CheckRasStatus(); }
 236
 237     private:
 238         wxDialUpManagerMSW *m_dialUpManager;
 239
 240         DECLARE_NO_COPY_CLASS(RasTimer)
 241     } m_timerStatusPolling;
 242
 243     // thread handle for the thread sitting on connection change event
 244     HANDLE m_hThread;
 245
 246     // data used by this thread and our hidden window to send messages between
 247     // each other
 248     wxRasThreadData *m_data;
 249
 250     // the handle of rasapi32.dll when it's loaded
 251     wxDynamicLibrary m_dllRas;
 252
 253     // the hidden window we use for passing messages between threads
 254     static HWND ms_hwndRas;
 255
 256     // the handle of the connection we initiated or 0 if none
 257     static HRASCONN ms_hRasConnection;
 258
 259     // the pointers to RAS functions
 260     static RASDIAL ms_pfnRasDial;
 261     static RASENUMCONNECTIONS ms_pfnRasEnumConnections;
 262     static RASENUMENTRIES ms_pfnRasEnumEntries;
 263     static RASGETCONNECTSTATUS ms_pfnRasGetConnectStatus;
 264     static RASGETERRORSTRING ms_pfnRasGetErrorString;
 265     static RASHANGUP ms_pfnRasHangUp;
 266     static RASGETPROJECTIONINFO ms_pfnRasGetProjectionInfo;
 267     static RASCREATEPHONEBOOKENTRY ms_pfnRasCreatePhonebookEntry;
 268     static RASEDITPHONEBOOKENTRY ms_pfnRasEditPhonebookEntry;
 269     static RASSETENTRYDIALPARAMS ms_pfnRasSetEntryDialParams;
 270     static RASGETENTRYDIALPARAMS ms_pfnRasGetEntryDialParams;
 271     static RASENUMDEVICES ms_pfnRasEnumDevices;
 272     static RASGETCOUNTRYINFO ms_pfnRasGetCountryInfo;
 273     static RASGETENTRYPROPERTIES ms_pfnRasGetEntryProperties;
 274     static RASSETENTRYPROPERTIES ms_pfnRasSetEntryProperties;
 275     static RASRENAMEENTRY ms_pfnRasRenameEntry;
 276     static RASDELETEENTRY ms_pfnRasDeleteEntry;
 277     static RASVALIDATEENTRYNAME ms_pfnRasValidateEntryName;
 278
 279     // this function is not supported by Win95
 280     static RASCONNECTIONNOTIFICATION ms_pfnRasConnectionNotification;
 281
 282     // if this flag is different from -1, it overrides IsOnline()
 283     static int ms_userSpecifiedOnlineStatus;
 284
 285     // this flag tells us if we're online
 286     static int ms_isConnected;
 287
 288     // this flag tells us whether a call to RasDial() is in progress
 289     static wxDialUpManagerMSW *ms_dialer;
 290
 291     DECLARE_NO_COPY_CLASS(wxDialUpManagerMSW)
 292 };
 293
 294 // module to destroy helper window created by wxDialUpManagerMSW
 295 class wxDialUpManagerModule : public wxModule
 296 {
 297 public:
 298     bool OnInit() { return true; }
 299     void OnExit()
 300     {
 301         HWND hwnd = wxDialUpManagerMSW::GetRasWindow();
 302         if ( hwnd )
 303         {
 304             ::DestroyWindow(hwnd);
 305             wxDialUpManagerMSW::ResetRasWindow();
 306         }
 307
 308         if ( gs_classForDialUpWindow )
 309         {
 310             ::UnregisterClass(wxMSWDIALUP_WNDCLASSNAME, wxGetInstance());
 311             gs_classForDialUpWindow = NULL;
 312         }
 313     }
 314
 315 private:
 316     DECLARE_DYNAMIC_CLASS(wxDialUpManagerModule)
 317 };
 318
 319 IMPLEMENT_DYNAMIC_CLASS(wxDialUpManagerModule, wxModule)
 320
 321 // ----------------------------------------------------------------------------
 322 // private functions
 323 // ----------------------------------------------------------------------------
 324
 325 static LRESULT WINAPI wxRasStatusWindowProc(HWND hWnd, UINT message,
 326                                             WPARAM wParam, LPARAM lParam);
 327
 328 static DWORD wxRasMonitorThread(wxRasThreadData *data);
 329
 330 static void WINAPI wxRasDialFunc(UINT unMsg,
 331                                  RASCONNSTATE rasconnstate,
 332                                  DWORD dwError);
 333
 334 // ============================================================================
 335 // implementation
 336 // ============================================================================
 337
 338 // ----------------------------------------------------------------------------
 339 // init the static variables
 340 // ----------------------------------------------------------------------------
 341
 342 HRASCONN wxDialUpManagerMSW::ms_hRasConnection = 0;
 343
 344 HWND wxDialUpManagerMSW::ms_hwndRas = 0;
 345
 346 RASDIAL wxDialUpManagerMSW::ms_pfnRasDial = 0;
 347 RASENUMCONNECTIONS wxDialUpManagerMSW::ms_pfnRasEnumConnections = 0;
 348 RASENUMENTRIES wxDialUpManagerMSW::ms_pfnRasEnumEntries = 0;
 349 RASGETCONNECTSTATUS wxDialUpManagerMSW::ms_pfnRasGetConnectStatus = 0;
 350 RASGETERRORSTRING wxDialUpManagerMSW::ms_pfnRasGetErrorString = 0;
 351 RASHANGUP wxDialUpManagerMSW::ms_pfnRasHangUp = 0;
 352 RASGETPROJECTIONINFO wxDialUpManagerMSW::ms_pfnRasGetProjectionInfo = 0;
 353 RASCREATEPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasCreatePhonebookEntry = 0;
 354 RASEDITPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasEditPhonebookEntry = 0;
 355 RASSETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasSetEntryDialParams = 0;
 356 RASGETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasGetEntryDialParams = 0;
 357 RASENUMDEVICES wxDialUpManagerMSW::ms_pfnRasEnumDevices = 0;
 358 RASGETCOUNTRYINFO wxDialUpManagerMSW::ms_pfnRasGetCountryInfo = 0;
 359 RASGETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasGetEntryProperties = 0;
 360 RASSETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasSetEntryProperties = 0;
 361 RASRENAMEENTRY wxDialUpManagerMSW::ms_pfnRasRenameEntry = 0;
 362 RASDELETEENTRY wxDialUpManagerMSW::ms_pfnRasDeleteEntry = 0;
 363 RASVALIDATEENTRYNAME wxDialUpManagerMSW::ms_pfnRasValidateEntryName = 0;
 364 RASCONNECTIONNOTIFICATION wxDialUpManagerMSW::ms_pfnRasConnectionNotification = 0;
 365
 366 int wxDialUpManagerMSW::ms_userSpecifiedOnlineStatus = -1;
 367 int wxDialUpManagerMSW::ms_isConnected = -1;
 368 wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
 369
 370 // ----------------------------------------------------------------------------
 371 // ctor and dtor: the dynamic linking happens here
 372 // ----------------------------------------------------------------------------
 373
 374 // the static creator function is implemented here
 375 wxDialUpManager *wxDialUpManager::Create()
 376 {
 377     return new wxDialUpManagerMSW;
 378 }
 379
 380 #ifdef __VISUALC__
 381     // warning about "'this' : used in base member initializer list" - so what?
 382     #pragma warning(disable:4355)
 383 #endif // VC++
 384
 385 wxDialUpManagerMSW::wxDialUpManagerMSW()
 386                   : m_timerStatusPolling(this),
 387                     m_dllRas(_T("RASAPI32"))
 388 {
 389     // initialize our data
 390     m_autoCheckLevel = 0;
 391     m_hThread = 0;
 392     m_data = new wxRasThreadData;
 393
 394     if ( !m_dllRas.IsLoaded() )
 395     {
 396         wxLogError(_("Dial up functions are unavailable because the remote access service (RAS) is not installed on this machine. Please install it."));
 397     }
 398     else if ( !ms_pfnRasDial )
 399     {
 400         // resolve the functions we need
 401
 402         // this will contain the name of the function we failed to resolve
 403         // if any at the end
 404         const char *funcName = NULL;
 405
 406         // get the function from rasapi32.dll and abort if it's not found
 407         #define RESOLVE_RAS_FUNCTION(type, name)                          \
 408             ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name))  \
 409                                                      + gs_funcSuffix);    \
 410             if ( !ms_pfn##name )                                          \
 411             {                                                             \
 412                 funcName = #name;                                         \
 413                 goto exit;                                                \
 414             }
 415
 416         // a variant of above macro which doesn't abort if the function is
 417         // not found in the DLL
 418         #define RESOLVE_OPTIONAL_RAS_FUNCTION(type, name)                 \
 419             ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name))  \
 420                                                      + gs_funcSuffix);
 421
 422         RESOLVE_RAS_FUNCTION(RASDIAL, RasDial);
 423         RESOLVE_RAS_FUNCTION(RASENUMCONNECTIONS, RasEnumConnections);
 424         RESOLVE_RAS_FUNCTION(RASENUMENTRIES, RasEnumEntries);
 425         RESOLVE_RAS_FUNCTION(RASGETCONNECTSTATUS, RasGetConnectStatus);
 426         RESOLVE_RAS_FUNCTION(RASGETERRORSTRING, RasGetErrorString);
 427         RESOLVE_RAS_FUNCTION(RASHANGUP, RasHangUp);
 428         RESOLVE_RAS_FUNCTION(RASGETENTRYDIALPARAMS, RasGetEntryDialParams);
 429
 430         // suppress error messages about missing (non essential) functions
 431         {
 432             wxLogNull noLog;
 433
 434             RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETPROJECTIONINFO, RasGetProjectionInfo);
 435             RESOLVE_OPTIONAL_RAS_FUNCTION(RASCREATEPHONEBOOKENTRY, RasCreatePhonebookEntry);
 436             RESOLVE_OPTIONAL_RAS_FUNCTION(RASEDITPHONEBOOKENTRY, RasEditPhonebookEntry);
 437             RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYDIALPARAMS, RasSetEntryDialParams);
 438             RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETENTRYPROPERTIES, RasGetEntryProperties);
 439             RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYPROPERTIES, RasSetEntryProperties);
 440             RESOLVE_OPTIONAL_RAS_FUNCTION(RASRENAMEENTRY, RasRenameEntry);
 441             RESOLVE_OPTIONAL_RAS_FUNCTION(RASDELETEENTRY, RasDeleteEntry);
 442             RESOLVE_OPTIONAL_RAS_FUNCTION(RASVALIDATEENTRYNAME, RasValidateEntryName);
 443             RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETCOUNTRYINFO, RasGetCountryInfo);
 444             RESOLVE_OPTIONAL_RAS_FUNCTION(RASENUMDEVICES, RasEnumDevices);
 445             RESOLVE_OPTIONAL_RAS_FUNCTION(RASCONNECTIONNOTIFICATION, RasConnectionNotification);
 446         }
 447
 448         // keep your preprocessor name space clean
 449         #undef RESOLVE_RAS_FUNCTION
 450         #undef RESOLVE_OPTIONAL_RAS_FUNCTION
 451
 452 exit:
 453         if ( funcName )
 454         {
 455             static const wxChar *msg = wxTRANSLATE(
 456 "The version of remote access service (RAS) installed on this machine is too\
 457 old, please upgrade (the following required function is missing: %s)."
 458                                                    );
 459
 460             wxLogError(wxGetTranslation(msg), funcName);
 461             m_dllRas.Unload();
 462             return;
 463         }
 464     }
 465
 466     // enable auto check by default
 467     EnableAutoCheckOnlineStatus(0);
 468 }
 469
 470 wxDialUpManagerMSW::~wxDialUpManagerMSW()
 471 {
 472     CleanUpThreadData();
 473 }
 474
 475 // ----------------------------------------------------------------------------
 476 // helper functions
 477 // ----------------------------------------------------------------------------
 478
 479 wxString wxDialUpManagerMSW::GetErrorString(DWORD error)
 480 {
 481     wxChar buffer[512]; // this should be more than enough according to MS docs
 482     DWORD dwRet = ms_pfnRasGetErrorString(error, buffer, WXSIZEOF(buffer));
 483     switch ( dwRet )
 484     {
 485         case ERROR_INVALID_PARAMETER:
 486             // this was a standard Win32 error probably
 487             return wxString(wxSysErrorMsg(error));
 488
 489         default:
 490             {
 491                 wxLogSysError(dwRet,
 492                       _("Failed to retrieve text of RAS error message"));
 493
 494                 wxString msg;
 495                 msg.Printf(_("unknown error (error code %08x)."), error);
 496                 return msg;
 497             }
 498
 499         case 0:
 500             // we want the error message to start from a lower case letter
 501             buffer[0] = (wxChar)wxTolower(buffer[0]);
 502
 503             return wxString(buffer);
 504     }
 505 }
 506
 507 HRASCONN wxDialUpManagerMSW::FindActiveConnection()
 508 {
 509     // enumerate connections
 510     DWORD cbBuf = sizeof(RASCONN);
 511     LPRASCONN lpRasConn = (LPRASCONN)malloc(cbBuf);
 512     if ( !lpRasConn )
 513     {
 514         // out of memory
 515         return 0;
 516     }
 517
 518     lpRasConn->dwSize = sizeof(RASCONN);
 519
 520     DWORD nConnections = 0;
 521     DWORD dwRet = ERROR_BUFFER_TOO_SMALL;
 522
 523     while ( dwRet == ERROR_BUFFER_TOO_SMALL )
 524     {
 525         dwRet = ms_pfnRasEnumConnections(lpRasConn, &cbBuf, &nConnections);
 526
 527         if ( dwRet == ERROR_BUFFER_TOO_SMALL )
 528         {
 529             LPRASCONN lpRasConnOld = lpRasConn;
 530             lpRasConn = (LPRASCONN)realloc(lpRasConn, cbBuf);
 531             if ( !lpRasConn )
 532             {
 533                 // out of memory
 534                 free(lpRasConnOld);
 535
 536                 return 0;
 537             }
 538         }
 539         else if ( dwRet == 0 )
 540         {
 541             // ok, success
 542             break;
 543         }
 544         else
 545         {
 546             // an error occurred
 547             wxLogError(_("Cannot find active dialup connection: %s"),
 548                        GetErrorString(dwRet).c_str());
 549             return 0;
 550         }
 551     }
 552
 553     HRASCONN hrasconn;
 554
 555     switch ( nConnections )
 556     {
 557         case 0:
 558             // no connections
 559             hrasconn = 0;
 560             break;
 561
 562         default:
 563             // more than 1 connection - we don't know what to do with this
 564             // case, so give a warning but continue (taking the first
 565             // connection) - the warning is really needed because this function
 566             // is used, for example, to select the connection to hang up and so
 567             // we may hang up the wrong connection here...
 568             wxLogWarning(_("Several active dialup connections found, choosing one randomly."));
 569             // fall through
 570
 571         case 1:
 572             // exactly 1 connection, great
 573             hrasconn = lpRasConn->hrasconn;
 574     }
 575
 576     free(lpRasConn);
 577
 578     return hrasconn;
 579 }
 580
 581 void wxDialUpManagerMSW::CleanUpThreadData()
 582 {
 583     if ( m_hThread )
 584     {
 585         if ( !SetEvent(m_data->hEventQuit) )
 586         {
 587             wxLogLastError(_T("SetEvent(RasThreadQuit)"));
 588         }
 589         else // sent quit request to the background thread
 590         {
 591             // the thread still needs m_data so we can't free it here, rather
 592             // let the thread do it itself
 593             m_data = NULL;
 594         }
 595
 596         CloseHandle(m_hThread);
 597
 598         m_hThread = 0;
 599     }
 600
 601     if ( m_data )
 602     {
 603         delete m_data;
 604         m_data = NULL;
 605     }
 606 }
 607
 608 // ----------------------------------------------------------------------------
 609 // connection status
 610 // ----------------------------------------------------------------------------
 611
 612 void wxDialUpManagerMSW::CheckRasStatus()
 613 {
 614     // use int, not bool to compare with -1
 615     int isConnected = FindActiveConnection() != 0;
 616     if ( isConnected != ms_isConnected )
 617     {
 618         if ( ms_isConnected != -1 )
 619         {
 620             // notify the program
 621             NotifyApp(isConnected != 0);
 622         }
 623         // else: it's the first time we're called, just update the flag
 624
 625         ms_isConnected = isConnected;
 626     }
 627 }
 628
 629 void wxDialUpManagerMSW::NotifyApp(bool connected, bool fromOurselves) const
 630 {
 631     wxDialUpEvent event(connected, fromOurselves);
 632     (void)wxTheApp->ProcessEvent(event);
 633 }
 634
 635 // this function is called whenever the status of any RAS connection on this
 636 // machine changes by RAS itself
 637 void wxDialUpManagerMSW::OnConnectStatusChange()
 638 {
 639     // we know that status changed, but we don't know whether we're connected
 640     // or not - so find it out
 641     CheckRasStatus();
 642 }
 643
 644 // this function is called by our callback which we give to RasDial() when
 645 // calling it asynchronously
 646 void wxDialUpManagerMSW::OnDialProgress(RASCONNSTATE rasconnstate,
 647                                         DWORD dwError)
 648 {
 649     if ( !GetDialer() )
 650     {
 651         // this probably means that CancelDialing() was called and we get
 652         // "disconnected" notification
 653         return;
 654     }
 655
 656     // we're only interested in 2 events: connected and disconnected
 657     if ( dwError )
 658     {
 659         wxLogError(_("Failed to establish dialup connection: %s"),
 660                    GetErrorString(dwError).c_str());
 661
 662         // we should still call RasHangUp() if we got a non 0 connection
 663         if ( ms_hRasConnection )
 664         {
 665             ms_pfnRasHangUp(ms_hRasConnection);
 666             ms_hRasConnection = 0;
 667         }
 668
 669         ms_dialer = NULL;
 670
 671         NotifyApp(false /* !connected */, true /* we dialed ourselves */);
 672     }
 673     else if ( rasconnstate == RASCS_Connected )
 674     {
 675         ms_isConnected = true;
 676         ms_dialer = NULL;
 677
 678         NotifyApp(true /* connected */, true /* we dialed ourselves */);
 679     }
 680 }
 681
 682 // ----------------------------------------------------------------------------
 683 // implementation of wxDialUpManager functions
 684 // ----------------------------------------------------------------------------
 685
 686 bool wxDialUpManagerMSW::IsOk() const
 687 {
 688     return m_dllRas.IsLoaded();
 689 }
 690
 691 size_t wxDialUpManagerMSW::GetISPNames(wxArrayString& names) const
 692 {
 693     // fetch the entries
 694     DWORD size = sizeof(RASENTRYNAME);
 695     RASENTRYNAME *rasEntries = (RASENTRYNAME *)malloc(size);
 696     rasEntries->dwSize = sizeof(RASENTRYNAME);
 697
 698     DWORD nEntries;
 699     DWORD dwRet;
 700     do
 701     {
 702         dwRet = ms_pfnRasEnumEntries
 703                   (
 704                    NULL,                // reserved
 705                    NULL,                // default phone book (or all)
 706                    rasEntries,          // [out] buffer for the entries
 707                    &size,               // [in/out] size of the buffer
 708                    &nEntries            // [out] number of entries fetched
 709                   );
 710
 711         if ( dwRet == ERROR_BUFFER_TOO_SMALL )
 712         {
 713             // reallocate the buffer
 714             rasEntries = (RASENTRYNAME *)realloc(rasEntries, size);
 715         }
 716         else if ( dwRet != 0 )
 717         {
 718             // some other error - abort
 719             wxLogError(_("Failed to get ISP names: %s"),
 720                        GetErrorString(dwRet).c_str());
 721
 722             free(rasEntries);
 723
 724             return 0u;
 725         }
 726     }
 727     while ( dwRet != 0 );
 728
 729     // process them
 730     names.Empty();
 731     for ( size_t n = 0; n < (size_t)nEntries; n++ )
 732     {
 733         names.Add(rasEntries[n].szEntryName);
 734     }
 735
 736     free(rasEntries);
 737
 738     // return the number of entries
 739     return names.GetCount();
 740 }
 741
 742 bool wxDialUpManagerMSW::Dial(const wxString& nameOfISP,
 743                               const wxString& username,
 744                               const wxString& password,
 745                               bool async)
 746 {
 747     // check preconditions
 748     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
 749
 750     if ( ms_hRasConnection )
 751     {
 752         wxFAIL_MSG(wxT("there is already an active connection"));
 753
 754         return true;
 755     }
 756
 757     // get the default ISP if none given
 758     wxString entryName(nameOfISP);
 759     if ( !entryName )
 760     {
 761         wxArrayString names;
 762         size_t count = GetISPNames(names);
 763         switch ( count )
 764         {
 765             case 0:
 766                 // no known ISPs, abort
 767                 wxLogError(_("Failed to connect: no ISP to dial."));
 768
 769                 return false;
 770
 771             case 1:
 772                 // only one ISP, choose it
 773                 entryName = names[0u];
 774                 break;
 775
 776             default:
 777                 // several ISPs, let the user choose
 778                 {
 779                     wxString *strings = new wxString[count];
 780                     for ( size_t i = 0; i < count; i++ )
 781                     {
 782                         strings[i] = names[i];
 783                     }
 784
 785                     entryName = wxGetSingleChoice
 786                                 (
 787                                  _("Choose ISP to dial"),
 788                                  _("Please choose which ISP do you want to connect to"),
 789                                  count,
 790                                  strings
 791                                 );
 792
 793                     delete [] strings;
 794
 795                     if ( !entryName )
 796                     {
 797                         // cancelled by user
 798                         return false;
 799                     }
 800                 }
 801         }
 802     }
 803
 804     RASDIALPARAMS rasDialParams;
 805     rasDialParams.dwSize = sizeof(rasDialParams);
 806     wxStrncpy(rasDialParams.szEntryName, entryName, RAS_MaxEntryName);
 807
 808     // do we have the username and password?
 809     if ( !username || !password )
 810     {
 811         BOOL gotPassword;
 812         DWORD dwRet = ms_pfnRasGetEntryDialParams
 813                       (
 814                        NULL,            // default phonebook
 815                        &rasDialParams,  // [in/out] the params of this entry
 816                        &gotPassword     // [out] did we get password?
 817                       );
 818
 819         if ( dwRet != 0 )
 820         {
 821             wxLogError(_("Failed to connect: missing username/password."));
 822
 823             return false;
 824         }
 825     }
 826     else
 827     {
 828         wxStrncpy(rasDialParams.szUserName, username, UNLEN);
 829         wxStrncpy(rasDialParams.szPassword, password, PWLEN);
 830     }
 831
 832     // default values for other fields
 833     rasDialParams.szPhoneNumber[0] = '\0';
 834     rasDialParams.szCallbackNumber[0] = '\0';
 835     rasDialParams.szCallbackNumber[0] = '\0';
 836
 837     rasDialParams.szDomain[0] = '*';
 838     rasDialParams.szDomain[1] = '\0';
 839
 840     // apparently, this is not really necessary - passing NULL instead of the
 841     // phone book has the same effect
 842 #if 0
 843     wxString phoneBook;
 844     if ( wxGetOsVersion() == wxWINDOWS_NT )
 845     {
 846         // first get the length
 847         UINT nLen = ::GetSystemDirectory(NULL, 0);
 848         nLen++;
 849
 850         if ( !::GetSystemDirectory(phoneBook.GetWriteBuf(nLen), nLen) )
 851         {
 852             wxLogSysError(_("Cannot find the location of address book file"));
 853         }
 854
 855         phoneBook.UngetWriteBuf();
 856
 857         // this is the default phone book
 858         phoneBook << "\\ras\\rasphone.pbk";
 859     }
 860 #endif // 0
 861
 862     // TODO may be we should disable auto check while async dialing is in
 863     //      progress?
 864
 865     ms_dialer = this;
 866
 867     DWORD dwRet = ms_pfnRasDial
 868                   (
 869                    NULL,                    // no extended features
 870                    NULL,                    // default phone book file (NT only)
 871                    &rasDialParams,
 872                    0,                       // use callback for notifications
 873                    async ? (void *)wxRasDialFunc  // cast needed for gcc 3.1
 874                          : 0,               // no notifications, sync operation
 875                    &ms_hRasConnection
 876                   );
 877
 878     if ( dwRet != 0 )
 879     {
 880         // can't pass a wxWCharBuffer through ( ... )
 881         if ( async )
 882             wxLogError(_("Failed to initiate dialup connection: %s"),
 883                        GetErrorString(dwRet).c_str());
 884         else
 885             wxLogError(_("Failed to establish dialup connection: %s"),
 886                        GetErrorString(dwRet).c_str());
 887
 888         // we should still call RasHangUp() if we got a non 0 connection
 889         if ( ms_hRasConnection )
 890         {
 891             ms_pfnRasHangUp(ms_hRasConnection);
 892             ms_hRasConnection = 0;
 893         }
 894
 895         ms_dialer = NULL;
 896
 897         return false;
 898     }
 899
 900     // for async dialing, we're not yet connected
 901     if ( !async )
 902     {
 903         ms_isConnected = true;
 904     }
 905
 906     return true;
 907 }
 908
 909 bool wxDialUpManagerMSW::IsDialing() const
 910 {
 911     return GetDialer() != NULL;
 912 }
 913
 914 bool wxDialUpManagerMSW::CancelDialing()
 915 {
 916     if ( !GetDialer() )
 917     {
 918         // silently ignore
 919         return false;
 920     }
 921
 922     wxASSERT_MSG( ms_hRasConnection, wxT("dialing but no connection?") );
 923
 924     ms_dialer = NULL;
 925
 926     return HangUp();
 927 }
 928
 929 bool wxDialUpManagerMSW::HangUp()
 930 {
 931     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
 932
 933     // we may terminate either the connection we initiated or another one which
 934     // is active now
 935     HRASCONN hRasConn;
 936     if ( ms_hRasConnection )
 937     {
 938         hRasConn = ms_hRasConnection;
 939
 940         ms_hRasConnection = 0;
 941     }
 942     else
 943     {
 944         hRasConn = FindActiveConnection();
 945     }
 946
 947     if ( !hRasConn )
 948     {
 949         wxLogError(_("Cannot hang up - no active dialup connection."));
 950
 951         return false;
 952     }
 953
 954     // note that it's not an error if the connection had been already
 955     // terminated
 956     const DWORD dwRet = ms_pfnRasHangUp(hRasConn);
 957     if ( dwRet != 0 && dwRet != ERROR_NO_CONNECTION )
 958     {
 959         wxLogError(_("Failed to terminate the dialup connection: %s"),
 960                    GetErrorString(dwRet).c_str());
 961     }
 962
 963     ms_isConnected = false;
 964
 965     return true;
 966 }
 967
 968 bool wxDialUpManagerMSW::IsAlwaysOnline() const
 969 {
 970     // assume no permanent connection by default
 971     bool isAlwaysOnline = false;
 972
 973     // try to use WinInet functions
 974
 975     // NB: we could probably use wxDynamicLibrary here just as well,
 976     //     but we allow multiple instances of wxDialUpManagerMSW so
 977     //     we might as well use the ref counted version here too.
 978
 979     wxDynamicLibrary hDll(_T("WININET"));
 980     if ( hDll.IsLoaded() )
 981     {
 982         typedef BOOL (WINAPI *INTERNETGETCONNECTEDSTATE)(LPDWORD, DWORD);
 983         INTERNETGETCONNECTEDSTATE pfnInternetGetConnectedState;
 984
 985         #define RESOLVE_FUNCTION(type, name) \
 986             pfn##name = (type)hDll.GetSymbol(_T(#name))
 987
 988         RESOLVE_FUNCTION(INTERNETGETCONNECTEDSTATE, InternetGetConnectedState);
 989
 990         if ( pfnInternetGetConnectedState )
 991         {
 992             DWORD flags = 0;
 993             if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
 994             {
 995                 // there is some connection to the net, see of which type
 996                 isAlwaysOnline = (flags & (INTERNET_CONNECTION_LAN |
 997                                            INTERNET_CONNECTION_PROXY)) != 0;
 998             }
 999             //else: no Internet connection at all
1000         }
1001     }
1002
1003     return isAlwaysOnline;
1004 }
1005
1006 bool wxDialUpManagerMSW::IsOnline() const
1007 {
1008     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
1009
1010     if ( IsAlwaysOnline() )
1011     {
1012         // always => now
1013         return true;
1014     }
1015
1016     if ( ms_userSpecifiedOnlineStatus != -1 )
1017     {
1018         // user specified flag overrides our logic
1019         return ms_userSpecifiedOnlineStatus != 0;
1020     }
1021     else
1022     {
1023         // return true if there is at least one active connection
1024         return FindActiveConnection() != 0;
1025     }
1026 }
1027
1028 void wxDialUpManagerMSW::SetOnlineStatus(bool isOnline)
1029 {
1030     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1031
1032     ms_userSpecifiedOnlineStatus = isOnline;
1033 }
1034
1035 bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
1036 {
1037     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
1038
1039     if ( m_autoCheckLevel++ )
1040     {
1041         // already checking
1042         return true;
1043     }
1044
1045     bool ok = ms_pfnRasConnectionNotification != 0;
1046
1047     if ( ok )
1048     {
1049         // we're running under NT 4.0, Windows 98 or later and can use
1050         // RasConnectionNotification() to be notified by a secondary thread
1051
1052         // first, see if we don't have this thread already running
1053         if ( m_hThread != 0 )
1054         {
1055             if ( ::ResumeThread(m_hThread) != (DWORD)-1 )
1056                 return true;
1057
1058             // we're leaving a zombie thread... but what else can we do?
1059             wxLogLastError(wxT("ResumeThread(RasThread)"));
1060
1061             ok = false;
1062         }
1063     }
1064
1065     // create all the stuff we need to be notified about RAS connection
1066     // status change
1067
1068     if ( ok )
1069     {
1070         // first create an event to wait on
1071         m_data->hEventRas = ::CreateEvent
1072                             (
1073                              NULL,      // security attribute (default)
1074                              FALSE,     // manual reset (no, it is automatic)
1075                              FALSE,     // initial state (not signaled)
1076                              NULL       // name (no)
1077                             );
1078         if ( !m_data->hEventRas )
1079         {
1080             wxLogLastError(wxT("CreateEvent(RasStatus)"));
1081
1082             ok = false;
1083         }
1084     }
1085
1086     if ( ok )
1087     {
1088         // create the event we use to quit the thread: using a manual event
1089         // here avoids problems with missing the event if wxDialUpManagerMSW
1090         // is created and destroyed immediately, before wxRasStatusWindowProc
1091         // starts waiting on the event
1092         m_data->hEventQuit = ::CreateEvent
1093                              (
1094                                 NULL,   // default security
1095                                 TRUE,   // manual event
1096                                 FALSE,  // initially non signalled
1097                                 NULL    // nameless
1098                              );
1099         if ( !m_data->hEventQuit )
1100         {
1101             wxLogLastError(wxT("CreateEvent(RasThreadQuit)"));
1102
1103             CleanUpThreadData();
1104
1105             ok = false;
1106         }
1107     }
1108
1109     if ( ok && !ms_hwndRas )
1110     {
1111         // create a hidden window to receive notification about connections
1112         // status change
1113         ms_hwndRas = wxCreateHiddenWindow
1114                      (
1115                         &gs_classForDialUpWindow,
1116                         wxMSWDIALUP_WNDCLASSNAME,
1117                         wxRasStatusWindowProc
1118                      );
1119         if ( !ms_hwndRas )
1120         {
1121             wxLogLastError(wxT("CreateWindow(RasHiddenWindow)"));
1122
1123             CleanUpThreadData();
1124
1125             ok = false;
1126         }
1127     }
1128
1129     m_data->hWnd = ms_hwndRas;
1130
1131     if ( ok )
1132     {
1133         // start the secondary thread
1134         m_data->dialUpManager = this;
1135
1136         DWORD tid;
1137         m_hThread = CreateThread
1138                     (
1139                      NULL,
1140                      0,
1141                      (LPTHREAD_START_ROUTINE)wxRasMonitorThread,
1142                      (void *)m_data,
1143                      0,
1144                      &tid
1145                     );
1146
1147         if ( !m_hThread )
1148         {
1149             wxLogLastError(wxT("CreateThread(RasStatusThread)"));
1150
1151             CleanUpThreadData();
1152         }
1153     }
1154
1155     if ( ok )
1156     {
1157         // start receiving RAS notifications
1158         DWORD dwRet = ms_pfnRasConnectionNotification
1159                       (
1160                         (HRASCONN)INVALID_HANDLE_VALUE,
1161                         m_data->hEventRas,
1162                         3 /* RASCN_Connection | RASCN_Disconnection */
1163                       );
1164
1165         if ( dwRet != 0 )
1166         {
1167             wxLogDebug(wxT("RasConnectionNotification() failed: %s"),
1168                        GetErrorString(dwRet).c_str());
1169
1170             CleanUpThreadData();
1171         }
1172         else
1173         {
1174             return true;
1175         }
1176     }
1177
1178     // we're running under Windows 95 and have to poll ourselves
1179     // (or, alternatively, the code above for NT/98 failed)
1180     m_timerStatusPolling.Stop();
1181     if ( nSeconds == 0 )
1182     {
1183         // default value
1184         nSeconds = 60;
1185     }
1186     m_timerStatusPolling.Start(nSeconds * 1000);
1187
1188     return true;
1189 }
1190
1191 void wxDialUpManagerMSW::DisableAutoCheckOnlineStatus()
1192 {
1193     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1194
1195     if ( --m_autoCheckLevel != 0 )
1196     {
1197         // still checking
1198         return;
1199     }
1200
1201     if ( m_hThread )
1202     {
1203         // we have running secondary thread, it's just enough to suspend it
1204         if ( SuspendThread(m_hThread) == (DWORD)-1 )
1205         {
1206             wxLogLastError(wxT("SuspendThread(RasThread)"));
1207         }
1208     }
1209     else
1210     {
1211         // even simpler - just stop the timer
1212         m_timerStatusPolling.Stop();
1213     }
1214 }
1215
1216 // ----------------------------------------------------------------------------
1217 // stubs which don't do anything in MSW version
1218 // ----------------------------------------------------------------------------
1219
1220 void wxDialUpManagerMSW::SetWellKnownHost(const wxString& WXUNUSED(hostname),
1221                                           int WXUNUSED(port))
1222 {
1223     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1224
1225     // nothing to do - we don't use this
1226 }
1227
1228 void wxDialUpManagerMSW::SetConnectCommand(const wxString& WXUNUSED(dial),
1229                                            const wxString& WXUNUSED(hangup))
1230 {
1231     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1232
1233     // nothing to do - we don't use this
1234 }
1235
1236 // ----------------------------------------------------------------------------
1237 // callbacks
1238 // ----------------------------------------------------------------------------
1239
1240 static DWORD wxRasMonitorThread(wxRasThreadData *data)
1241 {
1242     HANDLE handles[2];
1243     handles[0] = data->hEventRas;
1244     handles[1] = data->hEventQuit;
1245
1246     bool cont = true;
1247     while ( cont )
1248     {
1249         DWORD dwRet = ::WaitForMultipleObjects(2, handles, FALSE, INFINITE);
1250
1251         switch ( dwRet )
1252         {
1253             case WAIT_OBJECT_0:
1254                 // RAS connection status changed
1255                 SendMessage(data->hWnd, wxWM_RAS_STATUS_CHANGED,
1256                             0, (LPARAM)data);
1257                 break;
1258
1259             case WAIT_OBJECT_0 + 1:
1260                 cont = false;
1261                 break;
1262
1263             default:
1264                 wxFAIL_MSG( _T("unexpected return of WaitForMultipleObjects()") );
1265                 // fall through
1266
1267             case WAIT_FAILED:
1268 #ifdef __WXDEBUG__
1269                 // using wxLogLastError() from here is dangerous: we risk to
1270                 // deadlock the main thread if wxLog sends output to GUI
1271                 DWORD err = GetLastError();
1272                 wxMessageOutputDebug dbg;
1273                 dbg.Printf
1274                 (
1275                     wxT("WaitForMultipleObjects(RasMonitor) failed: 0x%08lx (%s)"),
1276                     err,
1277                     wxSysErrorMsg(err)
1278                 );
1279 #endif // __WXDEBUG__
1280
1281                 // no sense in continuing, who knows if the handles we're
1282                 // waiting for even exist yet...
1283                 return (DWORD)-1;
1284         }
1285     }
1286
1287     // we don't need it any more now and if this thread ran, it is our
1288     // responsability to free the data
1289     delete data;
1290
1291     return 0;
1292 }
1293
1294 static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
1295                                               WPARAM wParam, LPARAM lParam)
1296 {
1297     switch ( message )
1298     {
1299         case wxWM_RAS_STATUS_CHANGED:
1300             {
1301                 wxRasThreadData *data = (wxRasThreadData *)lParam;
1302                 data->dialUpManager->OnConnectStatusChange();
1303             }
1304             break;
1305
1306         case wxWM_RAS_DIALING_PROGRESS:
1307             {
1308                 wxDialUpManagerMSW *dialMan = wxDialUpManagerMSW::GetDialer();
1309
1310                 dialMan->OnDialProgress((RASCONNSTATE)wParam, lParam);
1311             }
1312             break;
1313
1314         default:
1315             return ::DefWindowProc(hWnd, message, wParam, lParam);
1316     }
1317
1318     return 0;
1319 }
1320
1321 static void WINAPI wxRasDialFunc(UINT WXUNUSED(unMsg),
1322                                  RASCONNSTATE rasconnstate,
1323                                  DWORD dwError)
1324 {
1325     wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
1326
1327     wxCHECK_RET( dialUpManager, wxT("who started to dial then?") );
1328
1329     SendMessage(wxDialUpManagerMSW::GetRasWindow(), wxWM_RAS_DIALING_PROGRESS,
1330                 rasconnstate, dwError);
1331 }
1332
1333 #endif // __BORLANDC__
1334
1335 #endif // wxUSE_DIALUP_MANAGER