246 lines
8.0 KiB
C++
246 lines
8.0 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#pragma once
|
|
|
|
#include "td/telegram/net/AuthDataShared.h"
|
|
#include "td/telegram/net/NetQuery.h"
|
|
#include "td/telegram/net/TempAuthKeyWatchdog.h"
|
|
#include "td/telegram/StateManager.h"
|
|
|
|
#include "td/mtproto/AuthData.h"
|
|
#include "td/mtproto/AuthKey.h"
|
|
#include "td/mtproto/Handshake.h"
|
|
#include "td/mtproto/SessionConnection.h"
|
|
|
|
#include "td/actor/actor.h"
|
|
#include "td/actor/PromiseFuture.h"
|
|
|
|
#include "td/utils/buffer.h"
|
|
#include "td/utils/CancellationToken.h"
|
|
#include "td/utils/common.h"
|
|
#include "td/utils/List.h"
|
|
#include "td/utils/Status.h"
|
|
#include "td/utils/StringBuilder.h"
|
|
|
|
#include <array>
|
|
#include <deque>
|
|
#include <map>
|
|
#include <memory>
|
|
#include <unordered_map>
|
|
#include <unordered_set>
|
|
#include <utility>
|
|
|
|
namespace td {
|
|
|
|
namespace mtproto {
|
|
class RawConnection;
|
|
} // namespace mtproto
|
|
|
|
namespace detail {
|
|
class GenAuthKeyActor;
|
|
} // namespace detail
|
|
|
|
class Session final
|
|
: public NetQueryCallback
|
|
, private mtproto::SessionConnection::Callback {
|
|
public:
|
|
class Callback {
|
|
public:
|
|
Callback() = default;
|
|
Callback(const Callback &) = delete;
|
|
Callback &operator=(const Callback &) = delete;
|
|
virtual ~Callback() = default;
|
|
virtual void on_failed() = 0;
|
|
virtual void on_closed() = 0;
|
|
virtual void request_raw_connection(unique_ptr<mtproto::AuthData> auth_data,
|
|
Promise<unique_ptr<mtproto::RawConnection>>) = 0;
|
|
virtual void on_tmp_auth_key_updated(mtproto::AuthKey auth_key) = 0;
|
|
virtual void on_server_salt_updated(std::vector<mtproto::ServerSalt> server_salts) {
|
|
}
|
|
// one still have to call close after on_closed
|
|
virtual void on_result(NetQueryPtr net_query) = 0;
|
|
};
|
|
|
|
Session(unique_ptr<Callback> callback, std::shared_ptr<AuthDataShared> shared_auth_data, int32 raw_dc_id, int32 dc_id,
|
|
bool is_main, bool use_pfs, bool is_cdn, bool need_destroy, const mtproto::AuthKey &tmp_auth_key,
|
|
std::vector<mtproto::ServerSalt> server_salts);
|
|
void send(NetQueryPtr &&query);
|
|
void on_network(bool network_flag, uint32 network_generation);
|
|
void on_online(bool online_flag);
|
|
void close();
|
|
|
|
private:
|
|
struct Query : private ListNode {
|
|
uint64 container_id;
|
|
NetQueryPtr query;
|
|
|
|
bool ack = false;
|
|
bool unknown = false;
|
|
|
|
int8 connection_id;
|
|
double sent_at_;
|
|
Query(uint64 message_id, NetQueryPtr &&q, int8 connection_id, double sent_at)
|
|
: container_id(message_id), query(std::move(q)), connection_id(connection_id), sent_at_(sent_at) {
|
|
}
|
|
|
|
ListNode *get_list_node() {
|
|
return static_cast<ListNode *>(this);
|
|
}
|
|
static Query *from_list_node(ListNode *list_node) {
|
|
return static_cast<Query *>(list_node);
|
|
}
|
|
};
|
|
|
|
// When connection is closed, mark all queries without ack as unknown.
|
|
// Ask state of all unknown queries when new connection is created.
|
|
//
|
|
// Just re-ask answer_id each time we get information about it.
|
|
// Though mtproto::Connection must ensure delivery of such query.
|
|
|
|
int32 raw_dc_id_;
|
|
int32 dc_id_;
|
|
enum class Mode : int8 { Tcp, Http } mode_ = Mode::Tcp;
|
|
bool is_main_;
|
|
bool is_cdn_;
|
|
bool need_destroy_;
|
|
bool was_on_network_ = false;
|
|
bool network_flag_ = false;
|
|
uint32 network_generation_ = 0;
|
|
bool online_flag_ = false;
|
|
bool connection_online_flag_ = false;
|
|
uint64 tmp_auth_key_id_ = 0;
|
|
uint64 last_bind_id_ = 0;
|
|
double last_activity_timestamp_ = 0;
|
|
size_t dropped_size_ = 0;
|
|
|
|
std::unordered_set<uint64> unknown_queries_;
|
|
std::vector<int64> to_cancel_;
|
|
|
|
// Do not invalidate iterators of these two containers!
|
|
// TODO: better data structures
|
|
std::deque<NetQueryPtr> pending_queries_;
|
|
std::map<uint64, Query> sent_queries_;
|
|
std::deque<NetQueryPtr> pending_invoke_after_queries_;
|
|
ListNode sent_queries_list_;
|
|
|
|
struct ConnectionInfo {
|
|
int8 connection_id;
|
|
Mode mode;
|
|
enum class State : int8 { Empty, Connecting, Ready } state = State::Empty;
|
|
CancellationTokenSource cancellation_token_source_;
|
|
unique_ptr<mtproto::SessionConnection> connection;
|
|
bool ask_info;
|
|
double wakeup_at = 0;
|
|
double created_at = 0;
|
|
};
|
|
|
|
ConnectionInfo *current_info_;
|
|
ConnectionInfo main_connection_;
|
|
ConnectionInfo long_poll_connection_;
|
|
StateManager::ConnectionToken connection_token_;
|
|
|
|
double cached_connection_timestamp_ = 0;
|
|
unique_ptr<mtproto::RawConnection> cached_connection_;
|
|
|
|
std::shared_ptr<Callback> callback_;
|
|
mtproto::AuthData auth_data_;
|
|
TempAuthKeyWatchdog::RegisteredAuthKey registered_temp_auth_key_;
|
|
std::shared_ptr<AuthDataShared> shared_auth_data_;
|
|
bool close_flag_ = false;
|
|
|
|
static constexpr double ACTIVITY_TIMEOUT = 60 * 5;
|
|
|
|
struct ContainerInfo {
|
|
size_t ref_cnt;
|
|
std::vector<uint64> message_ids;
|
|
};
|
|
std::unordered_map<uint64, ContainerInfo> sent_containers_;
|
|
|
|
friend class GenAuthKeyActor;
|
|
struct HandshakeInfo {
|
|
bool flag_ = false;
|
|
ActorOwn<detail::GenAuthKeyActor> actor_;
|
|
unique_ptr<mtproto::AuthKeyHandshake> handshake_;
|
|
};
|
|
enum HandshakeId : int32 { MainAuthKeyHandshake = 0, TmpAuthKeyHandshake = 1 };
|
|
std::array<HandshakeInfo, 2> handshake_info_;
|
|
|
|
double wakeup_at_;
|
|
void on_handshake_ready(Result<unique_ptr<mtproto::AuthKeyHandshake>> r_handshake);
|
|
void create_gen_auth_key_actor(HandshakeId handshake_id);
|
|
void auth_loop();
|
|
|
|
// mtproto::Connection::Callback
|
|
void on_connected() override;
|
|
void on_closed(Status status) override;
|
|
|
|
Status on_pong() override;
|
|
|
|
void on_auth_key_updated() override;
|
|
void on_tmp_auth_key_updated() override;
|
|
void on_server_salt_updated() override;
|
|
void on_server_time_difference_updated() override;
|
|
|
|
void on_session_created(uint64 unique_id, uint64 first_id) override;
|
|
void on_session_failed(Status status) override;
|
|
|
|
void on_container_sent(uint64 container_id, vector<uint64> msg_ids) override;
|
|
|
|
void on_message_ack(uint64 id) override;
|
|
Status on_message_result_ok(uint64 id, BufferSlice packet, size_t original_size) override;
|
|
void on_message_result_error(uint64 id, int error_code, BufferSlice message) override;
|
|
void on_message_failed(uint64 id, Status status) override;
|
|
|
|
void on_message_info(uint64 id, int32 state, uint64 answer_id, int32 answer_size) override;
|
|
|
|
Status on_destroy_auth_key() override;
|
|
|
|
void flush_pending_invoke_after_queries();
|
|
bool has_queries() const;
|
|
|
|
void dec_container(uint64 message_id, Query *query);
|
|
void cleanup_container(uint64 id, Query *query);
|
|
void mark_as_known(uint64 id, Query *query);
|
|
void mark_as_unknown(uint64 id, Query *query);
|
|
|
|
void on_message_ack_impl(uint64 id, int32 type);
|
|
void on_message_ack_impl_inner(uint64 id, int32 type, bool in_container);
|
|
void on_message_failed_inner(uint64 id, bool in_container);
|
|
|
|
// send NetQueryPtr to parent
|
|
void return_query(NetQueryPtr &&query);
|
|
void add_query(NetQueryPtr &&net_query);
|
|
void resend_query(NetQueryPtr query);
|
|
|
|
void connection_open(ConnectionInfo *info, bool ask_info = false);
|
|
void connection_add(unique_ptr<mtproto::RawConnection> raw_connection);
|
|
void connection_check_mode(ConnectionInfo *info);
|
|
void connection_open_finish(ConnectionInfo *info, Result<unique_ptr<mtproto::RawConnection>> r_raw_connection);
|
|
|
|
void connection_online_update(bool force = false);
|
|
void connection_close(ConnectionInfo *info);
|
|
void connection_flush(ConnectionInfo *info);
|
|
void connection_send_query(ConnectionInfo *info, NetQueryPtr &&net_query, uint64 message_id = 0);
|
|
bool need_send_bind_key() const;
|
|
bool need_send_query() const;
|
|
bool can_destroy_auth_key() const;
|
|
bool connection_send_bind_key(ConnectionInfo *info);
|
|
|
|
void on_result(NetQueryPtr query) override;
|
|
|
|
void start_up() override;
|
|
void loop() override;
|
|
void hangup() override;
|
|
void raw_event(const Event::Raw &event) override;
|
|
|
|
friend StringBuilder &operator<<(StringBuilder &sb, Mode mode) {
|
|
return sb << (mode == Mode::Http ? "Http" : "Tcp");
|
|
}
|
|
};
|
|
|
|
} // namespace td
|