Line data    Source code

       1              : /*
       2              :  *  Copyright (C) 2004-2026 Savoir-faire Linux Inc.
       3              :  *
       4              :  *  This program is free software: you can redistribute it and/or modify
       5              :  *  it under the terms of the GNU General Public License as published by
       6              :  *  the Free Software Foundation, either version 3 of the License, or
       7              :  *  (at your option) any later version.
       8              :  *
       9              :  *  This program is distributed in the hope that it will be useful,
      10              :  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
      11              :  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      12              :  *  GNU General Public License for more details.
      13              :  *
      14              :  *  You should have received a copy of the GNU General Public License
      15              :  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
      16              :  */
      17              : #pragma once
      18              : 
      19              : #include "jamidht/channel_handler.h"
      20              : #include "jamidht/jamiaccount.h"
      21              : #include <dhtnet/connectionmanager.h>
      22              : 
      23              : namespace jami {
      24              : 
      25              : /**
      26              :  * Manages channels for exchanging messages between peers
      27              :  */
      28              : class MessageChannelHandler : public ChannelHandlerInterface
      29              : {
      30              : public:
      31              :     using OnMessage
      32              :         = std::function<void(const std::shared_ptr<dht::crypto::Certificate>&, std::string&, const std::string&)>;
      33              :     using OnPeerStateChanged = std::function<void(const std::string&, bool)>;
      34              :     /** Called when a device becomes reachable, i.e. gets its first message channel. */
      35              :     using OnDeviceConnected = std::function<void(const std::string&, const DeviceId&)>;
      36              :     MessageChannelHandler(dhtnet::ConnectionManager& cm,
      37              :                           OnMessage onMessage,
      38              :                           OnPeerStateChanged onPeer,
      39              :                           OnDeviceConnected onDeviceConnected);
      40              :     ~MessageChannelHandler();
      41              : 
      42              :     /**
      43              :      * Ask for a new message channel
      44              :      * @param deviceId      The device to connect
      45              :      * @param name          (Unused, generated from deviceId)
      46              :      * @param cb            The callback to call when connected (can be immediate if already connected)
      47              :      * @param connectionType for iOS notifications
      48              :      * @param forceNewConnection If we want a new SIP connection
      49              :      */
      50              :     void connect(const DeviceId& deviceId,
      51              :                  const std::string&,
      52              :                  ConnectCb&& cb,
      53              :                  const std::string& connectionType,
      54              :                  bool forceNewConnection = false) override;
      55              : 
      56              :     std::shared_ptr<dhtnet::ChannelSocket> getChannel(const std::string& peer, const DeviceId& deviceId) const;
      57              :     std::vector<std::shared_ptr<dhtnet::ChannelSocket>> getChannels(const std::string& peer) const;
      58              : 
      59              :     /**
      60              :      * Determine if we accept or not the message request
      61              :      * @param deviceId      Device who asked
      62              :      * @param name          Name asked
      63              :      * @return if the channel is for a valid conversation and device not banned
      64              :      */
      65              :     bool onRequest(const std::shared_ptr<dht::crypto::Certificate>& peer, const std::string& name) override;
      66              : 
      67              :     /**
      68              :      * Launch message process
      69              :      * @param deviceId      Device who asked
      70              :      * @param name          Name asked
      71              :      * @param channel       Channel used to message
      72              :      */
      73              :     void onReady(const std::shared_ptr<dht::crypto::Certificate>& peer,
      74              :                  const std::string& name,
      75              :                  std::shared_ptr<dhtnet::ChannelSocket> channel) override;
      76              : 
      77              :     void closeChannel(const std::string& peer,
      78              :                       const DeviceId& device,
      79              :                       const std::shared_ptr<dhtnet::ChannelSocket>& conn);
      80              : 
      81              :     struct Message
      82              :     {
      83              :         uint64_t id {0};                          /* Message ID */
      84              :         std::string t;                            /* Message type */
      85              :         std::string c;                            /* Message content */
      86              :         std::unique_ptr<ConversationRequest> req; /* Conversation request */
      87        24796 :         MSGPACK_DEFINE_MAP(id, t, c, req)
      88              :     };
      89              : 
      90              :     static bool sendMessage(const std::shared_ptr<dhtnet::ChannelSocket>&, const Message& message);
      91              : 
      92              : private:
      93              :     struct Impl;
      94              :     std::shared_ptr<Impl> pimpl_;
      95              : };
      96              : 
      97              : } // namespace jami