Liblinphone  5.3.0
Basic buddy status notification

This program is a very simple usage example of liblinphone, demonstrating how to initiate SIP subscriptions and receive notifications from a sip uri identity passed from the command line. More...

This program is a very simple usage example of liblinphone, demonstrating how to initiate SIP subscriptions and receive notifications from a sip uri identity passed from the command line.


Argument must be like sip:jehan.nosp@m.@sip.nosp@m..linp.nosp@m.hone.nosp@m..org .
ex budy_list sip:jehan.nosp@m.@sip.nosp@m..linp.nosp@m.hone.nosp@m..org
Subscription is cleared on SIGINT

/*
* Copyright (c) 2010-2022 Belledonne Communications SARL.
*
* This file is part of Liblinphone
* (see https://gitlab.linphone.org/BC/public/liblinphone).
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "linphone/core.h"
#include <signal.h>
static bool_t running = TRUE;
static void stop(int signum) {
running = FALSE;
}
static void notify_presence_recv_updated(LinphoneCore *lc, LinphoneFriend *friend) {
const LinphoneAddress *friend_address = linphone_friend_get_address(friend);
if (friend_address != NULL) {
char *activity_str = linphone_presence_activity_to_string(activity);
char *str = linphone_address_as_string(friend_address);
printf("New state state [%s] for user id [%s] \n", activity_str, str);
ms_free(str);
}
}
static void new_subscription_requested(LinphoneCore *lc, LinphoneFriend *friend, const char *url) {
const LinphoneAddress *friend_address = linphone_friend_get_address(friend);
if (friend_address != NULL) {
char *str = linphone_address_as_string(friend_address);
printf(" [%s] wants to see your status, accepting\n", str);
ms_free(str);
}
linphone_friend_edit(friend); /* start editing friend */
friend, LinphoneSPAccept); /* Accept incoming subscription request for this friend*/
linphone_friend_done(friend); /*commit change*/
linphone_core_add_friend(lc, friend); /* add this new friend to the buddy list*/
}
static void registration_state_changed(struct _LinphoneCore *lc,
const char *message) {
printf("New registration state %s for user id [%s] at proxy [%s]", linphone_registration_state_to_string(cstate),
linphone_proxy_config_get_identity(cfg), linphone_proxy_config_get_addr(cfg));
}
int main(int argc, char *argv[]) {
LinphoneCoreVTable vtable = {0};
char *dest_friend = NULL;
char *identity = NULL;
char *password = NULL;
LinphoneFriend *my_friend = NULL;
/* takes sip uri identity from the command line arguments */
if (argc > 1) {
dest_friend = argv[1];
}
/* takes sip uri identity from the command line arguments */
if (argc > 2) {
identity = argv[2];
}
/* takes password from the command line arguments */
if (argc > 3) {
password = argv[3];
}
signal(SIGINT, stop);
//#define DEBUG_LOGS
#ifdef DEBUG_LOGS
linphone_core_enable_logs(NULL); /*enable liblinphone logs.*/
#endif
/*
Fill the LinphoneCoreVTable with application callbacks.
All are optional. Here we only use the both notify_presence_received and new_subscription_requested callbacks
in order to get notifications about friend status.
*/
vtable.notify_presence_received = notify_presence_recv_updated;
vtable.new_subscription_requested = new_subscription_requested;
vtable.registration_state_changed = registration_state_changed; /*just in case sip proxy is used*/
/*
Instantiate a LinphoneCore object given the LinphoneCoreVTable
*/
lc = linphone_core_new(&vtable, NULL, NULL, NULL);
/*sip proxy might be requested*/
if (identity != NULL) {
/*create proxy config*/
/*parse identity*/
if (from == NULL) {
printf("%s not a valid sip uri, must be like sip:toto@sip.linphone.org \n", identity);
goto end;
}
if (password != NULL) {
info = linphone_auth_info_new(linphone_address_get_username(from), NULL, password, NULL, NULL,
NULL); /*create authentication structure from identity*/
linphone_core_add_auth_info(lc, info); /*add authentication info to LinphoneCore*/
}
// configure proxy entries
linphone_proxy_config_set_identity_address(proxy_cfg, from); /*set identity with user name and domain*/
proxy_cfg, linphone_address_get_domain(from)); /* we assume domain = proxy server address*/
linphone_proxy_config_enable_register(proxy_cfg, TRUE); /*activate registration for this proxy config*/
linphone_proxy_config_enable_publish(proxy_cfg, TRUE); /* enable presence satus publication for this proxy*/
linphone_address_unref(from); /*release resource*/
linphone_core_add_proxy_config(lc, proxy_cfg); /*add proxy config to linphone core*/
linphone_core_set_default_proxy_config(lc, proxy_cfg); /*set to default proxy*/
/* Loop until registration status is available */
do {
linphone_core_iterate(lc); /* first iterate initiates registration */
ms_usleep(100000);
}
if (dest_friend) {
my_friend = linphone_core_create_friend_with_address(lc, dest_friend); /*creates friend object from dest*/
if (my_friend == NULL) {
printf("bad destination uri for friend [%s]\n", dest_friend);
goto end;
}
my_friend, TRUE); /*configure this friend to emit SUBSCRIBE message after being added to LinphoneCore*/
my_friend, LinphoneSPAccept); /* Accept incoming subscription request for this friend*/
linphone_core_add_friend(lc, my_friend); /* add my friend to the buddy list, initiate SUBSCRIBE message*/
}
/*set my status to online*/
/* main loop for receiving notifications and doing background linphone core work: */
while (running) {
linphone_core_iterate(lc); /* first iterate initiates subscription */
ms_usleep(50000);
}
/* change my presence status to offline*/
linphone_core_iterate(lc); /* just to make sure new status is initiate message is issued */
linphone_friend_edit(my_friend); /* start editing friend */
linphone_friend_enable_subscribes(my_friend, FALSE); /*disable subscription for this friend*/
linphone_friend_done(my_friend); /*commit changes triggering an UNSUBSCRIBE message*/
linphone_core_iterate(lc); /* just to make sure unsubscribe message is issued */
end:
printf("Shutting down...\n");
printf("Exited\n");
return 0;
}