exosip

exosip针对UA是对osip进行扩展,oSIP不提供不论什么高速产生请求消息和响应消息的方法，全部请求消息和响应消息的形成必须调用一组sip message api来手动组装完毕,所以作者在osip上基础上开发了exosip,用exosip开发软电话非常方便,仅需几个API就能够完毕.exosip中附带一个样例:josua,只是josua相对复杂了点,以下给出一个最简单的样例供大家參考,由于样例实在太简单所以没有给出凝视,用到exosip的API的參数请參看exosip源码,看懂这个样例再研究josua就非常easy了.我使用的是osip 2.0.9+exosip 0.77.

#include "assert.h"

#include <conio.h>

#include <iostream>

#include <osip2/osip_mt.h>

#include <eXosip/eXosip.h>

#include <eXosip/eXosip_cfg.h>

using namespace std;

class jcall;

class jcall {

public:

 int cid;

 int did;

 

 char reason_phrase[50];

 int  status_code;

 

 char textinfo[256];

 char req_uri[256];

 char local_uri[256];

 char remote_uri[256];

 char subject[256];

 

 char remote_sdp_audio_ip[50];

 int  remote_sdp_audio_port;

 int  payload;

 char payload_name[50];

 

 int state;

 

 jcall() {}

 

 int build(eXosip_event_t *je)

 {

  jcall *ca = this;

  

  ca->cid = je->cid;

  ca->did = je->did;

  

  if (ca->did<1 && ca->cid<1)

  {

   assert(0);

   return -1; /* not enough information for this event?? */

  }

  

  osip_strncpy(ca->textinfo,   je->textinfo, 255);

  osip_strncpy(ca->req_uri,    je->req_uri, 255);

  osip_strncpy(ca->local_uri,  je->local_uri, 255);

  osip_strncpy(ca->remote_uri, je->remote_uri, 255);

  osip_strncpy(ca->subject,    je->subject, 255);

  

  if (ca->remote_sdp_audio_ip[0]=='/0')

  {

   osip_strncpy(ca->remote_sdp_audio_ip, je->remote_sdp_audio_ip, 49);

   ca->remote_sdp_audio_port = je->remote_sdp_audio_port;

   ca->payload = je->payload;

   osip_strncpy(ca->payload_name, je->payload_name, 49);

   

  }

  

  if (je->reason_phrase[0]!='/0')

  {

   osip_strncpy(ca->reason_phrase, je->reason_phrase, 49);

   ca->status_code = je->status_code;

  }

  

  ca->state = je->type;

  return 0;

 }

 

};

jcall call;

void __exit( int r )

{

 char line[256];

 gets( line );

 exit( r );

}

void josua_printf(char* buf)

{

 printf( "/n" );

}

int josua_event_get()

{

 int counter =0;

 /* use events to print some info */

 eXosip_event_t *je;

 for (;;)

 {

  char buf[100];

  je = eXosip_event_wait(0,50);

  if (je==NULL)

   break;

  counter++;

  if (je->type==EXOSIP_CALL_NEW)

  {

   printf( "<- (%i %i) INVITE from: %s",

    je->cid, je->did,

    je->remote_uri);

   josua_printf(buf);

   

   call.build(je);

  }

  else if (je->type==EXOSIP_CALL_ANSWERED)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_PROCEEDING)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_RINGING)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_REDIRECTED)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_REQUESTFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_SERVERFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_GLOBALFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_CLOSED)

  {

   printf( "<- (%i %i) BYE from: %s",

    je->cid, je->did, je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_HOLD)

  {

   printf( "<- (%i %i) INVITE (On Hold) from: %s",

    je->cid, je->did, je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_CALL_OFFHOLD)

  {

   printf( "<- (%i %i) INVITE (Off Hold) from: %s",

    je->cid, je->did, je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_REGISTRATION_SUCCESS)

  {

   printf( "<- (%i) [%i %s] %s for REGISTER %s",

    je->rid,

    je->status_code,

    je->reason_phrase,

    je->remote_uri,

    je->req_uri);

   josua_printf(buf);

   

  }

  else if (je->type==EXOSIP_REGISTRATION_FAILURE)

  {

   printf( "<- (%i) [%i %s] %s for REGISTER %s",

    je->rid,

    je->status_code,

    je->reason_phrase,

    je->remote_uri,

    je->req_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_OPTIONS_NEW)

  {

   printf( "<- (%i %i) OPTIONS from: %s",

    je->cid, je->did,

    je->remote_uri);

   josua_printf(buf);

   

  }

  else if (je->type==EXOSIP_OPTIONS_ANSWERED)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_OPTIONS_PROCEEDING)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

   

  }

  else if (je->type==EXOSIP_OPTIONS_REDIRECTED)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_OPTIONS_REQUESTFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_OPTIONS_SERVERFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_OPTIONS_GLOBALFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_INFO_NEW)

  {

   printf( "<- (%i %i) INFO from: %s",

    je->cid, je->did,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_INFO_ANSWERED)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_INFO_PROCEEDING)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_INFO_REDIRECTED)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_INFO_REQUESTFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_INFO_SERVERFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_INFO_GLOBALFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s",

    je->cid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  

  else if (je->type==EXOSIP_SUBSCRIPTION_ANSWERED)

  {

   printf( "<- (%i %i) [%i %s] %s for SUBSCRIBE",

    je->sid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

   

   printf( "<- (%i %i) online=%i [status: %i reason:%i]",

    je->sid, je->did,

    je->online_status,

    je->ss_status,

    je->ss_reason);

   josua_printf(buf);

   

  }

  else if (je->type==EXOSIP_SUBSCRIPTION_PROCEEDING)

  {

   printf( "<- (%i %i) [%i %s] %s for SUBSCRIBE",

    je->sid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

   

  }

  else if (je->type==EXOSIP_SUBSCRIPTION_REDIRECTED)

  {

   printf( "<- (%i %i) [%i %s] %s for SUBSCRIBE",

    je->sid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_SUBSCRIPTION_REQUESTFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s for SUBSCRIBE",

    je->sid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_SUBSCRIPTION_SERVERFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s for SUBSCRIBE",

    je->sid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_SUBSCRIPTION_GLOBALFAILURE)

  {

   printf( "<- (%i %i) [%i %s] %s for SUBSCRIBE",

    je->sid, je->did,

    je->status_code,

    je->reason_phrase,

    je->remote_uri);

   josua_printf(buf);

  }

  else if (je->type==EXOSIP_SUBSCRIPTION_NOTIFY)

  {

   printf( "<- (%i %i) NOTIFY from: %s",

    je->sid, je->did,

    je->remote_uri);

   josua_printf(buf);

   

   printf( "<- (%i %i) online=%i [status: %i reason:%i]",

    je->sid, je->did,

    je->online_status,

    je->ss_status,

    je->ss_reason);

   josua_printf(buf);

   

  }

  else if (je->type==EXOSIP_IN_SUBSCRIPTION_NEW)

  {

   printf( "<- (%i %i) SUBSCRIBE from: %s",

    je->nid, je->did,

    je->remote_uri);

   josua_printf(buf);

   

   /* search for the user to see if he has been

   previously accepted or not! */

   

   eXosip_notify(je->did, EXOSIP_SUBCRSTATE_PENDING, EXOSIP_NOTIFY_AWAY);

  }

  else if (je->textinfo[0]!='/0')

  {

   printf( "(%i %i %i %i) %s", je->cid, je->sid, je->nid, je->did, je->textinfo);

   josua_printf(buf);

  }

  

  

  eXosip_event_free(je);

    }

 if (counter>0)

  return 0;

 return -1;

}

int main(int argc, char* argv[])

{

 int i;

 memset( &call, 0, sizeof(call) );

 

 cout << "Usage:"<< endl;

 cout << "a - answering call"<< endl;

 cout << "h - hangup"<< endl;

 cout << "r - ringing"<< endl;

 cout << "c - call"<< endl;

 cout << "q - quit"<< endl;

 

 FILE* logfile = fopen( "logfile.txt", "w");

 // osip_trace_initialize( (_trace_level)0, logfile );

 // osip_trace_initialize( (_trace_level)8, stdout );

 i = eXosip_init(stdin, stdout, 5060);

 if (i!=0)

    {

  fprintf (stderr, "test: could not initialize eXosip/n");

  __exit(0);

  

    }

 

 

 eXosip_sdp_negotiation_remove_audio_payloads();

 eXosip_sdp_negotiation_add_codec(osip_strdup("0"),

  NULL,

  osip_strdup("RTP/AVP"),

  NULL, NULL, NULL,

  NULL,NULL,

  osip_strdup("0 PCMU/8000"));

 

 eXosip_sdp_negotiation_add_codec(osip_strdup("8"),

  NULL,

  osip_strdup("RTP/AVP"),

  NULL, NULL, NULL,

  NULL,NULL,

  osip_strdup("8 PCMA/8000"));

   

 /* register callbacks? */

 eXosip_set_mode(EVENT_MODE);

 

 osip_message_t *invite;

 i = eXosip_build_initial_invite(&invite,

  "sip:192.168.197.5:5060",       //被叫对IP

  "sip:192.168.197.254:5060",     //自己IP

  NULL,

  "oSIP phone");

 if (i!=0)

 {

  fprintf (stderr, "eXosip_build_initial_invite failed/n");

  __exit(0);

 }

 

 

 cout << "oSIP>";

 bool run = true;

 while( run )

 {

  josua_event_get();

  

  if ( _kbhit() )

  {

   switch ( _getch() )

   {

   case 'a':

    cout << "answer"<< endl;

    eXosip_lock();

    eXosip_answer_call(call.did, 200, 0);

    eXosip_unlock();

    break;

    

   case 'h':

    cout << "hangup"<< endl;

    eXosip_lock();

    eXosip_terminate_call( call.cid, call.did );

    eXosip_unlock();

    break;

    

   case 'r':

    cout << "ringing"<< endl;

    eXosip_lock();

    eXosip_answer_call(call.did, 180, 0);

    eXosip_unlock();

    break;

    

   case 'c':

    cout << "call"<< endl;

    eXosip_lock();

    eXosip_initiate_call(invite, NULL, NULL, "10500");

    eXosip_unlock();

    break;

    

   case 'q':

    cout << "quit"<< endl;

    run = false;

    break;

    

   default :

    cout << "/noSIP>";

   }

  }

 }

 

 

 return 0;

}