#include "wx/string.h"
#include "wx/event.h"
-#include "wx/net.h"
+#include "wx/dialup.h"
#include "wx/timer.h"
#include "wx/filefn.h"
#include "wx/utils.h"
#include "wx/log.h"
+#include "wx/file.h"
+#include "wx/process.h"
+#include "wx/intl.h"
+#include "wx/app.h"
#include <stdlib.h>
class WXDLLEXPORT wxDialUpManagerImpl : public wxDialUpManager
{
public:
- wxDialUpManagerImpl()
- {
- m_IsOnline = -1; // unknown
- m_timer = NULL;
- m_CanUseIfconfig = -1; // unknown
- m_BeaconHost = WXDIALUP_MANAGER_DEFAULT_BEACONHOST;
- m_BeaconPort = 80;
- }
-
+ wxDialUpManagerImpl();
+ ~wxDialUpManagerImpl();
+
/** Could the dialup manager be initialized correctly? If this function
returns FALSE, no other functions will work neither, so it's a good idea
to call this function and check its result before calling any other
return m_IsOnline != 0;
}
+ /// returns TRUE if (async) dialing is in progress
+ inline virtual bool IsDialling() const
+ { return m_DialProcess != NULL; }
+
+ // cancel dialing the number initiated with Dial(async = TRUE)
+ // NB: this won't result in DISCONNECTED event being sent
+ virtual bool CancelDialing();
+
// sometimes the built-in logic for determining the online status may fail,
// so, in general, the user should be allowed to override it. This function
// allows to forcefully set the online status - whatever our internal
wxString m_ISPname;
/// a timer for regular testing
class AutoCheckTimer *m_timer;
-
friend class AutoCheckTimer;
+
+ /// a wxProcess for dialling in background
+ class wxDialProcess *m_DialProcess;
+ /// pid of dial process
+ int m_DialPId;
+ friend class wxDialProcess;
+
/// determine status
- void CheckStatus(void) const;
+ void CheckStatus(bool fromAsync = FALSE) const;
/// real status check
void CheckStatusInternal(void);
wxDialUpManagerImpl *m_dupman;
};
+class wxDialProcess : public wxProcess
+{
+public:
+ wxDialProcess(wxDialUpManagerImpl *dupman)
+ {
+ m_DupMan = dupman;
+ }
+ void OnTerminate(int pid, int status) const
+ {
+ m_DupMan->m_DialProcess = NULL;
+ m_DupMan->CheckStatus(TRUE);
+ }
+private:
+ wxDialUpManagerImpl *m_DupMan;
+};
+
+
+wxDialUpManagerImpl::wxDialUpManagerImpl()
+{
+ m_IsOnline = -1; // unknown
+ m_DialProcess = NULL;
+ m_timer = NULL;
+ m_CanUseIfconfig = -1; // unknown
+ m_BeaconHost = WXDIALUP_MANAGER_DEFAULT_BEACONHOST;
+ m_BeaconPort = 80;
+}
+
+wxDialUpManagerImpl::~wxDialUpManagerImpl()
+{
+ if(m_timer) delete m_timer;
+ if(m_DialProcess) m_DialProcess->Detach();
+}
+
bool
wxDialUpManagerImpl::Dial(const wxString &isp,
const wxString & WXUNUSED(username),
if ( async )
{
- wxFAIL_MSG(_T("TODO"));
+ m_DialProcess = new wxDialProcess(this);
+ m_DialPId = wxExecute(cmd, FALSE, m_DialProcess);
+ if(m_DialPId == 0)
+ {
+ delete m_DialProcess;
+ m_DialProcess = NULL;
+ return FALSE;
+ }
+ else
+ return TRUE;
}
else
- {
return wxExecute(cmd, /* sync */ TRUE) == 0;
- }
}
bool
{
if(m_IsOnline == 0)
return FALSE;
+ if(IsDialling())
+ {
+ wxLogError(_("Already dialling ISP."));
+ return FALSE;
+ }
m_IsOnline = -1;
wxString cmd;
if(m_HangUpCommand.Find("%s"))
- cmd.Printf(m_HangUpCommand,m_ISPname.c_str());
+ cmd.Printf(m_HangUpCommand,m_ISPname.c_str(), m_DialProcess);
else
cmd = m_HangUpCommand;
return wxExecute(cmd, /* sync */ TRUE) == 0;
}
+bool
+wxDialUpManagerImpl::CancelDialing()
+{
+ if(! IsDialling())
+ return FALSE;
+ return kill(m_DialPId, SIGTERM) > 0;
+}
+
bool
wxDialUpManagerImpl::EnableAutoCheckOnlineStatus(size_t nSeconds)
{
void
-wxDialUpManagerImpl::CheckStatus(void) const
+wxDialUpManagerImpl::CheckStatus(bool fromAsync) const
{
// This function calls the CheckStatusInternal() helper function
// which is OS - specific and then sends the events.
// now send the events as appropriate:
if(m_IsOnline != oldIsOnline)
{
- if(m_IsOnline)
- ; // send ev
- else
- ; // send ev
+ wxDialUpEvent event(m_IsOnline, ! fromAsync);
+ (void)wxTheApp->ProcessEvent(event);
}
}
--- /dev/null
+// -*- c++ -*- ///////////////////////////////////////////////////////////////
+// Name: unix/net.cpp
+// Purpose: Network related wxWindows classes and functions
+// Author: Karsten Ballüder
+// Modified by:
+// Created: 03.10.99
+// RCS-ID: $Id$
+// Copyright: (c) Karsten Ballüder
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#include "wx/setup.h"
+
+#if wxUSE_DIALUP_MANAGER
+
+#ifndef WX_PRECOMP
+# include "wx/defs.h"
+#endif // !PCH
+
+#include "wx/string.h"
+#include "wx/event.h"
+#include "wx/net.h"
+#include "wx/timer.h"
+#include "wx/filefn.h"
+#include "wx/utils.h"
+#include "wx/log.h"
+#include "wx/file.h"
+
+#include <stdlib.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <unistd.h>
+#define __STRICT_ANSI__
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+// ----------------------------------------------------------------------------
+// A class which groups functions dealing with connecting to the network from a
+// workstation using dial-up access to the net. There is at most one instance
+// of this class in the program accessed via GetDialUpManager().
+// ----------------------------------------------------------------------------
+
+/* TODO
+ *
+ * 1. more configurability for Unix: i.e. how to initiate the connection, how
+ * to check for online status, &c.
+ * 2. add a "long Dial(long connectionId = -1)" function which asks the user
+ * about which connection to dial (this may be done using native dialogs
+ * under NT, need generic dialogs for all others) and returns the identifier
+ * of the selected connection (it's opaque to the application) - it may be
+ * reused later to dial the same connection later (or use strings instead of
+ * longs may be?)
+ * 3. add an async version of dialing functions which notify the caller about
+ * the progress (or may be even start another thread to monitor it)
+ * 4. the static creation/accessor functions are not MT-safe - but is this
+ * really crucial? I think we may suppose they're always called from the
+ * main thread?
+ */
+
+class WXDLLEXPORT wxDialUpManagerImpl : public wxDialUpManager
+{
+public:
+ wxDialUpManagerImpl()
+ {
+ m_IsOnline = -1; // unknown
+ m_timer = NULL;
+ m_CanUseIfconfig = -1; // unknown
+ m_BeaconHost = WXDIALUP_MANAGER_DEFAULT_BEACONHOST;
+ m_BeaconPort = 80;
+ }
+
+ /** Could the dialup manager be initialized correctly? If this function
+ returns FALSE, no other functions will work neither, so it's a good idea
+ to call this function and check its result before calling any other
+ wxDialUpManager methods.
+ */
+ virtual bool IsOk() const
+ { return TRUE; }
+
+ /** The simplest way to initiate a dial up: this function dials the given
+ ISP (exact meaning of the parameter depends on the platform), returns
+ TRUE on success or FALSE on failure and logs the appropriate error
+ message in the latter case.
+ @param nameOfISP optional paramater for dial program
+ @param username unused
+ @param password unused
+ */
+ virtual bool Dial(const wxString& nameOfISP,
+ const wxString& WXUNUSED(username),
+ const wxString& WXUNUSED(password));
+
+ /// Hang up the currently active dial up connection.
+ virtual bool HangUp();
+
+ // returns TRUE if the computer is connected to the network: under Windows,
+ // this just means that a RAS connection exists, under Unix we check that
+ // the "well-known host" (as specified by SetWellKnownHost) is reachable
+ virtual bool IsOnline() const
+ {
+ if( (! m_timer) // we are not polling, so test now:
+ || m_IsOnline == -1
+ )
+ CheckStatus();
+ return m_IsOnline != 0;
+ }
+
+ // sometimes the built-in logic for determining the online status may fail,
+ // so, in general, the user should be allowed to override it. This function
+ // allows to forcefully set the online status - whatever our internal
+ // algorithm may think about it.
+ virtual void SetOnlineStatus(bool isOnline = TRUE)
+ { m_IsOnline = isOnline; }
+
+ // set misc wxDialUpManager options
+ // --------------------------------
+
+ // enable automatical checks for the connection status and sending of
+ // wxEVT_DIALUP_CONNECTED/wxEVT_DIALUP_DISCONNECTED events. The interval
+ // parameter is only for Unix where we do the check manually: under
+ // Windows, the notification about the change of connection status is
+ // instantenous.
+ //
+ // Returns FALSE if couldn't set up automatic check for online status.
+ virtual bool EnableAutoCheckOnlineStatus(size_t nSeconds);
+
+ // disable automatic check for connection status change - notice that the
+ // wxEVT_DIALUP_XXX events won't be sent any more neither.
+ virtual void DisableAutoCheckOnlineStatus();
+
+ // under Unix, the value of well-known host is used to check whether we're
+ // connected to the internet. It's unused under Windows, but this function
+ // is always safe to call. The default value is www.yahoo.com.
+ virtual void SetWellKnownHost(const wxString& hostname,
+ int portno = 80);
+ /** Sets the commands to start up the network and to hang up
+ again. Used by the Unix implementations only.
+ */
+ virtual void SetConnectCommand(const wxString &command, const wxString &hupcmd)
+ { m_ConnectCommand = command; m_HangUpCommand = hupcmd; }
+
+private:
+ /// -1: don´t know, 0 = no, 1 = yes
+ int m_IsOnline;
+
+ /// Can we use ifconfig to list active devices?
+ int m_CanUseIfconfig;
+ /// The path to ifconfig
+ wxString m_IfconfigPath;
+
+ /// beacon host:
+ wxString m_BeaconHost;
+ /// beacon host portnumber for connect:
+ int m_BeaconPort;
+
+ /// command to connect to network
+ wxString m_ConnectCommand;
+ /// command to hang up
+ wxString m_HangUpCommand;
+ /// name of ISP
+ wxString m_ISPname;
+ /// a timer for regular testing
+ class AutoCheckTimer *m_timer;
+
+ friend class AutoCheckTimer;
+ /// determine status
+ void CheckStatus(void) const;
+
+ /// real status check
+ void CheckStatusInternal(void);
+};
+
+
+class AutoCheckTimer : public wxTimer
+{
+public:
+ AutoCheckTimer(wxDialUpManagerImpl *dupman)
+ {
+ m_dupman = dupman;
+ m_started = FALSE;
+ }
+
+ virtual bool Start( int millisecs = -1 )
+ { m_started = TRUE; return wxTimer::Start(millisecs, FALSE); }
+
+ virtual void Notify()
+ { wxLogTrace("Checking dial up network status."); m_dupman->CheckStatus(); }
+
+ virtual void Stop()
+ { if ( m_started ) wxTimer::Stop(); }
+public:
+ bool m_started;
+ wxDialUpManagerImpl *m_dupman;
+};
+
+bool
+wxDialUpManagerImpl::Dial(const wxString &isp,
+ const wxString & WXUNUSED(username),
+ const wxString & WXUNUSED(password))
+{
+ if(m_IsOnline == 1)
+ return FALSE;
+ m_IsOnline = -1;
+ m_ISPname = isp;
+ wxString cmd;
+ if(m_ConnectCommand.Find("%s"))
+ cmd.Printf(m_ConnectCommand,m_ISPname.c_str());
+ else
+ cmd = m_ConnectCommand;
+ return wxExecute(cmd, /* sync */ TRUE) == 0;
+}
+
+bool
+wxDialUpManagerImpl::HangUp(void)
+{
+ if(m_IsOnline == 0)
+ return FALSE;
+ m_IsOnline = -1;
+ wxString cmd;
+ if(m_HangUpCommand.Find("%s"))
+ cmd.Printf(m_HangUpCommand,m_ISPname.c_str());
+ else
+ cmd = m_HangUpCommand;
+ return wxExecute(cmd, /* sync */ TRUE) == 0;
+}
+
+
+bool
+wxDialUpManagerImpl::EnableAutoCheckOnlineStatus(size_t nSeconds)
+{
+ wxASSERT(m_timer == NULL);
+ m_timer = new AutoCheckTimer(this);
+ bool rc = m_timer->Start(nSeconds*1000);
+ if(! rc)
+ {
+ delete m_timer;
+ m_timer = NULL;
+ }
+ return rc;
+}
+
+void
+wxDialUpManagerImpl::DisableAutoCheckOnlineStatus()
+{
+ wxASSERT(m_timer != NULL);
+ m_timer->Stop();
+ delete m_timer;
+ m_timer = NULL;
+}
+
+
+void
+wxDialUpManagerImpl::SetWellKnownHost(const wxString& hostname, int portno)
+{
+ /// does hostname contain a port number?
+ wxString port = hostname.After(':');
+ if(port.Length())
+ {
+ m_BeaconHost = hostname.Before(':');
+ m_BeaconPort = atoi(port);
+ }
+ else
+ {
+ m_BeaconHost = hostname;
+ m_BeaconPort = portno;
+ }
+}
+
+
+void
+wxDialUpManagerImpl::CheckStatus(void) const
+{
+ // This function calls the CheckStatusInternal() helper function
+ // which is OS - specific and then sends the events.
+
+ int oldIsOnline = m_IsOnline;
+ ( /* non-const */ (wxDialUpManagerImpl *)this)->CheckStatusInternal();
+
+ // now send the events as appropriate:
+ if(m_IsOnline != oldIsOnline)
+ {
+ if(m_IsOnline)
+ ; // send ev
+ else
+ ; // send ev
+ }
+}
+
+/*
+ We have three methods that we can use:
+
+ 1. test via /sbin/ifconfig and grep for "sl", "ppp", "pl"
+ --> should be fast enough for regular polling
+ 2. test if we can reach the well known beacon host
+ --> too slow for polling
+ 3. check /proc/net/dev on linux??
+ This method should be preferred, if possible. Need to do more
+ testing.
+
+*/
+
+void
+wxDialUpManagerImpl::CheckStatusInternal(void)
+{
+ m_IsOnline = -1;
+
+ // First time check for ifconfig location. We only use the variant
+ // which does not take arguments, a la GNU.
+ if(m_CanUseIfconfig == -1) // unknown
+ {
+ if(wxFileExists("/sbin/ifconfig"))
+ m_IfconfigPath = "/sbin/ifconfig";
+ else if(wxFileExists("/usr/sbin/ifconfig"))
+ m_IfconfigPath = "/usr/sbin/ifconfig";
+ }
+
+ wxLogNull ln; // suppress all error messages
+ // Let´s try the ifconfig method first, should be fastest:
+ if(m_CanUseIfconfig != 0) // unknown or yes
+ {
+ wxASSERT(m_IfconfigPath.length());
+
+ wxString tmpfile = wxGetTempFileName("_wxdialuptest");
+ wxString cmd = "/bin/sh -c \'";
+ cmd << m_IfconfigPath << " >" << tmpfile << '\'';
+ /* I tried to add an option to wxExecute() to not close stdout,
+ so we could let ifconfig write directly to the tmpfile, but
+ this does not work. That should be faster, as it doesn´t call
+ the shell first. I have no idea why. :-( (KB) */
+#if 0
+ // temporarily redirect stdout/stderr:
+ int
+ new_stdout = dup(STDOUT_FILENO),
+ new_stderr = dup(STDERR_FILENO);
+ close(STDOUT_FILENO);
+ close(STDERR_FILENO);
+
+ int
+ // new stdout:
+ output_fd = open(tmpfile, O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR),
+ // new stderr:
+ null_fd = open("/dev/null", O_CREAT, S_IRUSR|S_IWUSR);
+ // verify well behaved unix behaviour:
+ wxASSERT(output_fd == STDOUT_FILENO);
+ wxASSERT(null_fd == STDERR_FILENO);
+ int rc = wxExecute(m_IfconfigPath,TRUE /* sync */,NULL ,wxEXECUTE_DONT_CLOSE_FDS);
+ close(null_fd); close(output_fd);
+ // restore old stdout, stderr:
+ int test;
+ test = dup(new_stdout); close(new_stdout); wxASSERT(test == STDOUT_FILENO);
+ test = dup(new_stderr); close(new_stderr); wxASSERT(test == STDERR_FILENO);
+ if(rc == 0)
+#endif
+ if(wxExecute(cmd,TRUE /* sync */) == 0)
+ {
+ m_CanUseIfconfig = 1;
+ wxFile file;
+ if( file.Open(tmpfile) )
+ {
+ char *output = new char [file.Length()+1];
+ output[file.Length()] = '\0';
+ if(file.Read(output,file.Length()) == file.Length())
+ {
+ if(strstr(output,"ppp") // ppp
+ || strstr(output,"sl") // slip
+ || strstr(output,"pl") // plip
+ )
+ m_IsOnline = 1;
+ else
+ m_IsOnline = 0;
+ }
+ file.Close();
+ delete [] output;
+ }
+ // else m_IsOnline remains -1 as we don't know for sure
+ }
+ else // could not run ifconfig correctly
+ m_CanUseIfconfig = 0; // don´t try again
+ (void) wxRemoveFile(tmpfile);
+ if(m_IsOnline != -1) // we are done
+ return;
+ }
+
+ // second method: try to connect to well known host:
+ // This can be used under Win 9x, too!
+ struct hostent *hp;
+ struct sockaddr_in serv_addr;
+ int sockfd;
+
+ m_IsOnline = 0; // assume false
+ if((hp = gethostbyname(m_BeaconHost)) == NULL)
+ return; // no DNS no net
+
+ serv_addr.sin_family = hp->h_addrtype;
+ memcpy(&serv_addr.sin_addr,hp->h_addr, hp->h_length);
+ serv_addr.sin_port = htons(m_BeaconPort);
+ if( ( sockfd = socket(hp->h_addrtype, SOCK_STREAM, 0)) < 0)
+ {
+ // sys_error("cannot create socket for gw");
+ return;
+ }
+ if( connect(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0)
+ {
+ //sys_error("cannot connect to server");
+ return;
+ }
+ //connected!
+ close(sockfd);
+}
+
+
+/* static */
+wxDialUpManager *
+wxDialUpManager::wxDialUpManager::Create(void)
+{
+ return new wxDialUpManagerImpl;
+}
+
+#endif // wxUSE_DIALUP_MANAGER
projects / wxWidgets.git / commitdiff
