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toxcore/toxav/phone.c

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/** phone.c
*
* NOTE NOTE NOTE NOTE NOTE NOTE
*
* This file is for testing/reference purposes only, hence
* it is _poorly_ designed and it does not fully reflect the
* quaility of msi nor rtp. Although toxmsi* and toxrtp* are tested
* there is always possiblity of crashes. If crash occures,
* contact me ( mannol ) on either irc channel #tox-dev @ freenode.net:6667
* or eniz_vukovic@hotmail.com
*
* NOTE NOTE NOTE NOTE NOTE NOTE
*
* Copyright (C) 2013 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Tox is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Tox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#define _BSD_SOURCE
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "toxmsi.h"
#include "toxrtp.h"
#include <stdarg.h>
#include <unistd.h>
#include <assert.h>
#include "../toxcore/network.h"
#include "../toxcore/event.h"
#include "../toxcore/tox.h"
/* Define client version */
#define _USERAGENT "v.0.3.0"
typedef struct av_friend_s {
int _id;
int _active; /* 0=false; 1=true; */
} av_friend_t;
typedef struct av_session_s {
MSISession* _msi;
RTPSession* _rtp_audio;
RTPSession* _rtp_video;
pthread_mutex_t _mutex;
Tox* _messenger;
av_friend_t* _friends;
int _friend_cout;
uint8_t _my_public_id[200];
} av_session_t;
void av_allocate_friend(av_session_t* _phone, int _id, int _active)
{
static int _new_id = 0;
if ( !_phone->_friends ) {
_phone->_friends = calloc(sizeof(av_friend_t), 1);
_phone->_friend_cout = 1;
} else{
_phone->_friend_cout ++;
_phone->_friends = realloc(_phone->_friends, sizeof(av_friend_t) * _phone->_friend_cout);
}
if ( _id = -1 ) {
_phone->_friends->_id = _new_id;
_new_id ++;
} else _phone->_friends->_id = _id;
_phone->_friends->_active = _active;
}
av_friend_t* av_get_friend(av_session_t* _phone, int _id)
{
av_friend_t* _friends = _phone->_friends;
if ( !_friends ) return NULL;
int _it = 0;
for (; _it < _phone->_friend_cout; _it ++)
if ( _friends[_it]._id == _id )
return _friends + _it;
return NULL;
}
/***************** MISC *****************/
void INFO (const char* _format, ...)
{
printf("\r[!] ");
va_list _arg;
va_start (_arg, _format);
vfprintf (stdout, _format, _arg);
va_end (_arg);
printf("\n\r >> ");
fflush(stdout);
}
unsigned char *hex_string_to_bin(char hex_string[])
{
size_t i, len = strlen(hex_string);
unsigned char *val = calloc(sizeof(char), len);
char *pos = hex_string;
for (i = 0; i < len; ++i, pos += 2)
sscanf(pos, "%2hhx", &val[i]);
return val;
}
int getinput( char* _buff, size_t _limit, int* _len )
{
if ( fgets(_buff, _limit, stdin) == NULL )
return -1;
*_len = strlen(_buff) - 1;
/* Get rid of newline */
_buff[*_len] = '\0';
return 0;
}
char* trim_spaces ( char* buff )
{
int _i = 0, _len = strlen(buff);
char* container = calloc(sizeof(char), _len);
int _ci = 0;
for ( ; _i < _len; _i++ ) {
while ( _i < _len && buff[_i] == ' ' )
_i++;
if ( _i < _len ){
container[_ci] = buff[_i];
_ci ++;
}
}
memcpy( buff, container, _ci );
buff[_ci] = '\0';
free(container);
return buff;
}
#define FRADDR_TOSTR_CHUNK_LEN 8
static void fraddr_to_str(uint8_t *id_bin, char *id_str)
{
uint i, delta = 0, pos_extra, sum_extra = 0;
for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; i++) {
sprintf(&id_str[2 * i + delta], "%02hhX", id_bin[i]);
if ((i + 1) == TOX_CLIENT_ID_SIZE)
pos_extra = 2 * (i + 1) + delta;
if (i >= TOX_CLIENT_ID_SIZE)
sum_extra |= id_bin[i];
if (!((i + 1) % FRADDR_TOSTR_CHUNK_LEN)) {
id_str[2 * (i + 1) + delta] = ' ';
delta++;
}
}
id_str[2 * i + delta] = 0;
if (!sum_extra)
id_str[pos_extra] = 0;
}
void* phone_handle_media_transport_poll ( void* _hmtc_args_p )
{
RTPMessage* _audio_msg, * _video_msg;
av_session_t* _phone = _hmtc_args_p;
MSISession* _session = _phone->_msi;
RTPSession* _rtp_audio = _phone->_rtp_audio;
RTPSession* _rtp_video = _phone->_rtp_video;
Tox* _messenger = _phone->_messenger;
while ( _session->call ) {
_audio_msg = rtp_recv_msg ( _rtp_audio );
_video_msg = rtp_recv_msg ( _rtp_video );
if ( _audio_msg ) {
/* Do whatever with msg
printf("%d - %s\n", _audio_msg->header->sequnum, _audio_msg->data);*/
rtp_free_msg ( _rtp_audio, _audio_msg );
}
if ( _video_msg ) {
/* Do whatever with msg
p rintf("%d - %s\n", _video_msg->header->sequnum, _video_msg->data);*/
rtp_free_msg ( _rtp_video, _video_msg );
}
/*
* Send test message to the 'remote'
*/
rtp_send_msg ( _rtp_audio, _messenger, (const uint8_t*)"audio\0", 6 );
if ( _session->call->type_local == type_video ){ /* if local call send video */
rtp_send_msg ( _rtp_video, _messenger, (const uint8_t*)"video\0", 6 );
}
_audio_msg = _video_msg = NULL;
/* Send ~1k messages per second
* That _should_ be enough for both Audio and Video
*/
usleep ( 1000 );
/* -------------------- */
}
if ( _audio_msg ) rtp_free_msg(_rtp_audio, _audio_msg);
rtp_release_session_recv(_rtp_audio);
rtp_terminate_session(_rtp_audio, _messenger);
if ( _video_msg ) rtp_free_msg(_rtp_video, _video_msg);
rtp_release_session_recv(_rtp_video);
rtp_terminate_session(_rtp_video, _messenger);
INFO("Media thread finished!");
pthread_exit ( NULL );
}
int phone_startmedia_loop ( av_session_t* _phone )
{
if ( !_phone ){
return -1;
}
_phone->_rtp_audio = rtp_init_session (
type_audio,
_phone->_messenger,
_phone->_msi->call->peers[0],
_phone->_msi->call->key_peer,
_phone->_msi->call->key_local,
_phone->_msi->call->nonce_peer,
_phone->_msi->call->nonce_local
);
_phone->_rtp_audio = rtp_init_session (
type_video,
_phone->_messenger,
_phone->_msi->call->peers[0],
_phone->_msi->call->key_peer,
_phone->_msi->call->key_local,
_phone->_msi->call->nonce_peer,
_phone->_msi->call->nonce_local
);
if ( 0 > event.rise(phone_handle_media_transport_poll, _phone) )
{
printf("Error while starting phone_handle_media_transport_poll()\n");
return -1;
}
else return 0;
}
/* Some example callbacks */
void* callback_recv_invite ( void* _arg )
{
const char* _call_type;
MSISession* _msi = _arg;
switch ( _msi->call->type_peer[_msi->call->peer_count - 1] ){
case type_audio:
_call_type = "audio";
break;
case type_video:
_call_type = "video";
break;
}
INFO( "Incoming %s call!", _call_type );
}
void* callback_recv_ringing ( void* _arg )
{
INFO ( "Ringing!" );
}
void* callback_recv_starting ( void* _arg )
{
MSISession* _session = _arg;
if ( 0 != phone_startmedia_loop(_session->agent_handler) ){
INFO("Starting call failed!");
} else {
INFO ("Call started! ( press h to hangup )");
}
}
void* callback_recv_ending ( void* _arg )
{
INFO ( "Call ended!" );
}
void* callback_recv_error ( void* _arg )
{
MSISession* _session = _arg;
INFO( "Error: %s", _session->last_error_str );
}
void* callback_call_started ( void* _arg )
{
MSISession* _session = _arg;
if ( 0 != phone_startmedia_loop(_session->agent_handler) ){
INFO("Starting call failed!");
} else {
INFO ("Call started! ( press h to hangup )");
}
}
void* callback_call_canceled ( void* _arg )
{
INFO ( "Call canceled!" );
}
void* callback_call_rejected ( void* _arg )
{
INFO ( "Call rejected!" );
}
void* callback_call_ended ( void* _arg )
{
INFO ( "Call ended!" );
}
void* callback_requ_timeout ( void* _arg )
{
INFO( "No answer! " );
}
int av_connect_to_dht(av_session_t* _phone, char* _dht_key, const char* _dht_addr, unsigned short _dht_port)
{
unsigned char *_binary_string = hex_string_to_bin(_dht_key);
uint16_t _port = htons(_dht_port);
int _if = tox_bootstrap_from_address(_phone->_messenger, _dht_addr, 1, _port, _binary_string );
free(_binary_string);
return _if ? 0 : -1;
}
av_session_t* av_init_session()
{
av_session_t* _retu = malloc(sizeof(av_session_t));
/* Initialize our mutex */
pthread_mutex_init ( &_retu->_mutex, NULL );
_retu->_messenger = tox_new(1);
if ( !_retu->_messenger ) {
fprintf ( stderr, "tox_new() failed!\n" );
return NULL;
}
_retu->_friends = NULL;
_retu->_rtp_audio = NULL;
_retu->_rtp_video = NULL;
uint8_t _byte_address[TOX_FRIEND_ADDRESS_SIZE];
tox_get_address(_retu->_messenger, _byte_address );
fraddr_to_str( _byte_address, _retu->_my_public_id );
/* Initialize msi */
_retu->_msi = msi_init_session ( _retu->_messenger, _USERAGENT );
if ( !_retu->_msi ) {
fprintf ( stderr, "msi_init_session() failed\n" );
return NULL;
}
_retu->_msi->agent_handler = _retu;
/* ------------------ */
msi_register_callback(callback_call_started, cb_onstart);
msi_register_callback(callback_call_canceled, cb_oncancel);
msi_register_callback(callback_call_rejected, cb_onreject);
msi_register_callback(callback_call_ended, cb_onend);
msi_register_callback(callback_recv_invite, cb_oninvite);
msi_register_callback(callback_recv_ringing, cb_ringing);
msi_register_callback(callback_recv_starting, cb_starting);
msi_register_callback(callback_recv_ending, cb_ending);
msi_register_callback(callback_recv_error, cb_error);
msi_register_callback(callback_requ_timeout, cb_timeout);
/* ------------------ */
return _retu;
}
int av_terminate_session(av_session_t* _phone)
{
if ( _phone->_msi->call ){
msi_hangup(_phone->_msi); /* Hangup the phone first */
}
free(_phone->_friends);
msi_terminate_session(_phone->_msi);
pthread_mutex_destroy ( &_phone->_mutex );
Tox* _p = _phone->_messenger;
_phone->_messenger = NULL; usleep(100000); /* Wait for tox_pool to end */
tox_kill(_p);
printf("\r[i] Quit!\n");
return 0;
}
/****** AV HELPER FUNCTIONS ******/
/* Auto accept friend request */
void av_friend_requ(uint8_t *_public_key, uint8_t *_data, uint16_t _length, void *_userdata)
{
av_session_t* _phone = _userdata;
av_allocate_friend (_phone, -1, 0);
INFO("Got friend request with message: %s", _data);
tox_add_friend_norequest(_phone->_messenger, _public_key);
INFO("Auto-accepted! Friend id: %d", _phone->_friends->_id );
}
void av_friend_active(Tox *_messenger, int _friendnumber, uint8_t *_string, uint16_t _length, void *_userdata)
{
av_session_t* _phone = _userdata;
INFO("Friend no. %d is online", _friendnumber);
av_friend_t* _this_friend = av_get_friend(_phone, _friendnumber);
if ( !_this_friend ) {
INFO("But it's not registered!");
return;
}
(*_this_friend)._active = 1;
}
int av_add_friend(av_session_t* _phone, char* _friend_hash)
{
trim_spaces(_friend_hash);
unsigned char *_bin_string = hex_string_to_bin(_friend_hash);
int _number = tox_add_friend(_phone->_messenger, _bin_string, (uint8_t *)"Tox phone "_USERAGENT, sizeof("Tox phone "_USERAGENT));
free(_bin_string);
if ( _number >= 0) {
INFO("Added friend as %d", _number );
av_allocate_friend(_phone, _number, 0);
}
else
INFO("Unknown error %i", _number );
return _number;
}
/*********************************/
void do_phone ( av_session_t* _phone )
{
INFO("Welcome to tox_phone version: " _USERAGENT "\n"
"Usage: \n"
"f [pubkey] (add friend)\n"
"c [a/v] (type) [friend] (friend id) (calls friend if online)\n"
"h (if call is active hang up)\n"
"a [a/v] (answer incoming call: a - audio / v - audio + video (audio is default))\n"
"r (reject incoming call)\n"
"q (quit)\n"
"================================================================================"
);
while ( 1 )
{
char _line [ 1500 ];
int _len;
if ( -1 == getinput(_line, 1500, &_len) ){
printf(" >> ");
fflush(stdout);
continue;
}
if ( _len > 1 && _line[1] != ' ' && _line[1] != '\n' ){
INFO("Invalid input!");
continue;
}
switch (_line[0]){
case 'f':
{
char _id [128];
strncpy(_id, _line + 2, 128);
av_add_friend(_phone, _id);
} break;
case 'c':
{
if ( _phone->_msi->call ){
INFO("Already in a call");
break;
}
MSICallType _ctype;
if ( _len < 5 ){
INFO("Invalid input; usage: c a/v [friend]");
break;
}
else if ( _line[2] == 'a' || _line[2] != 'v' ){ /* default and audio */
_ctype = type_audio;
}
else { /* video */
_ctype = type_video;
}
char* _end;
int _friend = strtol(_line + 4, &_end, 10);
if ( *_end ){
INFO("Friend num has to be numerical value");
break;
}
/* Set timeout */
msi_invite ( _phone->_msi, _ctype, 10 * 1000, _friend );
INFO("Calling friend: %d!", _friend);
} break;
case 'h':
{
if ( !_phone->_msi->call ){
INFO("No call!");
break;
}
msi_hangup(_phone->_msi);
INFO("Hung up...");
} break;
case 'a':
{
if ( _phone->_msi->call && _phone->_msi->call->state != call_starting ) {
break;
}
if ( _len > 1 && _line[2] == 'v' )
msi_answer(_phone->_msi, type_video);
else
msi_answer(_phone->_msi, type_audio);
} break;
case 'r':
{
if ( _phone->_msi->call && _phone->_msi->call->state != call_starting ){
break;
}
msi_reject(_phone->_msi);
INFO("Call Rejected...");
} break;
case 'q':
{
INFO("Quitting!");
return;
}
default:
{
INFO("Invalid command!");
} break;
}
}
}
void* tox_poll (void* _messenger_p)
{
Tox** _messenger = _messenger_p;
while( *_messenger ) {
tox_do(*_messenger);
usleep(10000);
}
pthread_exit(NULL);
}
int av_wait_dht(av_session_t* _phone, int _wait_seconds, const char* _ip, char* _key, unsigned short _port)
{
if ( !_wait_seconds )
return -1;
int _waited = 0;
while( !tox_isconnected(_phone->_messenger) ) {
if ( -1 == av_connect_to_dht(_phone, _key, _ip, _port) )
{
INFO("Could not connect to: %s", _ip);
av_terminate_session(_phone);
return -1;
}
if ( _waited >= _wait_seconds ) return 0;
printf(".");
fflush(stdout);
_waited ++;
usleep(1000000);
}
int _r = _wait_seconds - _waited;
return _r ? _r : 1;
}
/* ---------------------- */
int print_help ( const char* _name )
{
printf ( "Usage: %s [IP] [PORT] [KEY]\n"
"\t[IP] (DHT ip)\n"
"\t[PORT] (DHT port)\n"
"\t[KEY] (DHT public key)\n"
"P.S. Friends and key are stored in ./tox_phone.conf\n"
,_name );
return 1;
}
int main ( int argc, char* argv [] )
{
if ( argc < 1 || argc < 4 )
return print_help(argv[0]);
char* _convertable;
int _wait_seconds = 5;
const char* _ip = argv[1];
char* _key = argv[3];
unsigned short _port = strtol(argv[2], &_convertable, 10);
if ( *_convertable ){
printf("Invalid port: cannot convert string to long: %s", _convertable);
return 1;
}
av_session_t* _phone = av_init_session();
tox_callback_friend_request(_phone->_messenger, av_friend_requ, _phone);
tox_callback_status_message(_phone->_messenger, av_friend_active, _phone);
system("clear");
INFO("\r================================================================================\n"
"[!] Trying dht@%s:%d"
, _ip, _port);
/* Start tox protocol */
event.rise( tox_poll, &_phone->_messenger );
/* Just clean one line */
printf("\r \r");
fflush(stdout);
int _r;
for ( _r = 0; _r == 0; _r = av_wait_dht(_phone, _wait_seconds, _ip, _key, _port) ) _wait_seconds --;
if ( -1 == _r ) {
INFO("Error while connecting to dht: %s:%d", _ip, _port);
av_terminate_session(_phone);
return 1;
}
INFO("CONNECTED!\n"
"================================================================================\n"
"%s\n"
"================================================================================"
, _phone->_my_public_id );
do_phone (_phone);
av_terminate_session(_phone);
return 0;
}
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