sipvoiplink.h

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/*
 *  Copyright (C) 2004-2025 Savoir-faire Linux Inc.
 *
 *  This program 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.
 *
 *  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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program. If not, see <https://www.gnu.org/licenses/>.
 */
#pragma once
 
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
 
#include "ring_types.h"
#include "noncopyable.h"
 
#include <dhtnet/ip_utils.h>
 
#include <pjsip.h>
#include <pjlib.h>
#include <pjsip_ua.h>
#include <pjlib-util.h>
#include <pjnath.h>
#include <pjnath/stun_config.h>
 
#ifdef ENABLE_VIDEO
#include <queue>
#endif
#include <map>
#include <mutex>
#include <memory>
#include <functional>
#include <thread>
#include <atomic>
 
namespace jami {
 
class SIPCall;
class SIPAccountBase;
class SIPVoIPLink;
class SipTransportBroker;
 
class SIPVoIPLink
{
public:
    SIPVoIPLink();
    ~SIPVoIPLink();
 
    void shutdown();
 
    void handleEvents();
 
    void registerKeepAliveTimer(pj_timer_entry& timer, pj_time_val& delay);
 
    void cancelKeepAliveTimer(pj_timer_entry& timer);
 
    pj_caching_pool* getMemoryPoolFactory();
 
    void createDefaultSipUdpTransport();
 
public:
    static void createSDPOffer(pjsip_inv_session* inv);
 
    std::unique_ptr<SipTransportBroker> sipTransportBroker;
 
    typedef std::function<void(std::vector<dhtnet::IpAddr>)> SrvResolveCallback;
    void resolveSrvName(const std::string& name,
                        pjsip_transport_type_e type,
                        SrvResolveCallback&& cb);
 
    std::shared_ptr<SIPAccountBase> guessAccount(std::string_view userName,
                                                 std::string_view server,
                                                 std::string_view fromUri) const;
 
    int getModId();
    pjsip_endpoint* getEndpoint();
    pjsip_module* getMod();
 
    pj_caching_pool* getCachingPool() noexcept;
    pj_pool_t* getPool() noexcept;
 
    void findLocalAddressFromTransport(pjsip_transport* transport,
                                       pjsip_transport_type_e transportType,
                                       const std::string& host,
                                       std::string& address,
                                       pj_uint16_t& port) const;
 
    bool findLocalAddressFromSTUN(pjsip_transport* transport,
                                  pj_str_t* stunServerName,
                                  int stunPort,
                                  std::string& address,
                                  pj_uint16_t& port) const;
 
    static inline pjsip_tpselector getTransportSelector(pjsip_transport* transport)
    {
        pjsip_tpselector tp;
        tp.type = PJSIP_TPSELECTOR_TRANSPORT;
        tp.u.transport = transport;
        return tp;
    }
 
private:
    NON_COPYABLE(SIPVoIPLink);
 
    mutable pj_caching_pool cp_;
    std::unique_ptr<pj_pool_t, decltype(pj_pool_release)&> pool_;
    std::atomic_bool running_ {true};
    std::thread sipThread_;
 
    friend class SIPTest;
};
 
} // namespace jami