1171 lines
36 KiB
C++
1171 lines
36 KiB
C++
// This file Copyright © 2008-2023 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#pragma once
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#define TR_NAME "Transmission"
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#include <array>
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#include <cstddef> // size_t
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#include <cstdint> // uintX_t
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#include <future>
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#include <memory>
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#include <mutex>
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#include <optional>
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#include <string>
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#include <string_view>
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#include <tuple>
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#include <utility> // for std::pair
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#include <vector>
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#include <event2/util.h> // for evutil_socket_t
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#include "transmission.h"
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#include "announce-list.h"
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#include "announcer.h"
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#include "bandwidth.h"
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#include "bitfield.h"
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#include "cache.h"
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#include "global-ip-cache.h"
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#include "interned-string.h"
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#include "net.h" // tr_socket_t
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#include "open-files.h"
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#include "port-forwarding.h"
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#include "quark.h"
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#include "session-alt-speeds.h"
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#include "session-id.h"
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#include "session-settings.h"
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#include "session-thread.h"
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#include "stats.h"
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#include "torrents.h"
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#include "tr-dht.h"
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#include "tr-lpd.h"
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#include "utils-ev.h"
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#include "verify.h"
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#include "web.h"
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tr_peer_id_t tr_peerIdInit();
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struct event_base;
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class tr_lpd;
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class tr_peer_socket;
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class tr_port_forwarding;
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class tr_rpc_server;
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class tr_session_thread;
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class tr_web;
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struct struct_utp_context;
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struct tr_variant;
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namespace libtransmission
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{
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class Blocklist;
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class Dns;
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class Timer;
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class TimerMaker;
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} // namespace libtransmission
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namespace libtransmission::test
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{
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class SessionTest;
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} // namespace libtransmission::test
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/** @brief handle to an active libtransmission session */
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struct tr_session
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{
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private:
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class BoundSocket
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{
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public:
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using IncomingCallback = void (*)(tr_socket_t, void*);
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BoundSocket(struct event_base* base, tr_address const& addr, tr_port port, IncomingCallback cb, void* cb_data);
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BoundSocket(BoundSocket&&) = delete;
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BoundSocket(BoundSocket const&) = delete;
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BoundSocket operator=(BoundSocket&&) = delete;
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BoundSocket operator=(BoundSocket const&) = delete;
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~BoundSocket();
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private:
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static void onCanRead(evutil_socket_t fd, short /*what*/, void* vself)
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{
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auto* const self = static_cast<BoundSocket*>(vself);
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self->cb_(fd, self->cb_data_);
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}
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IncomingCallback cb_;
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void* cb_data_;
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tr_socket_t socket_ = TR_BAD_SOCKET;
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libtransmission::evhelpers::event_unique_ptr ev_;
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};
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class AltSpeedMediator final : public tr_session_alt_speeds::Mediator
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{
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public:
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explicit AltSpeedMediator(tr_session& session) noexcept
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: session_{ session }
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{
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}
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void is_active_changed(bool is_active, tr_session_alt_speeds::ChangeReason reason) override;
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[[nodiscard]] time_t time() override;
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~AltSpeedMediator() noexcept override = default;
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private:
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tr_session& session_;
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};
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class AnnouncerUdpMediator final : public tr_announcer_udp::Mediator
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{
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public:
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explicit AnnouncerUdpMediator(tr_session& session) noexcept
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: session_{ session }
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{
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}
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~AnnouncerUdpMediator() noexcept override = default;
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void sendto(void const* buf, size_t buflen, sockaddr const* addr, socklen_t addrlen) override
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{
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session_.udp_core_->sendto(buf, buflen, addr, addrlen);
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}
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[[nodiscard]] std::optional<tr_address> announce_ip() const override
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{
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if (!session_.useAnnounceIP())
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{
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return {};
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}
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return tr_address::from_string(session_.announceIP());
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}
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private:
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tr_session& session_;
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};
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class DhtMediator : public tr_dht::Mediator
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{
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public:
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DhtMediator(tr_session& session) noexcept
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: session_{ session }
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{
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}
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~DhtMediator() noexcept override = default;
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[[nodiscard]] std::vector<tr_torrent_id_t> torrents_allowing_dht() const override;
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[[nodiscard]] tr_sha1_digest_t torrent_info_hash(tr_torrent_id_t id) const override;
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[[nodiscard]] std::string_view config_dir() const override
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{
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return session_.config_dir_;
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}
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[[nodiscard]] libtransmission::TimerMaker& timer_maker() override
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{
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return session_.timerMaker();
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}
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void add_pex(tr_sha1_digest_t const&, tr_pex const* pex, size_t n_pex) override;
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private:
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tr_session& session_;
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};
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class PortForwardingMediator final : public tr_port_forwarding::Mediator
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{
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public:
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explicit PortForwardingMediator(tr_session& session) noexcept
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: session_{ session }
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{
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}
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[[nodiscard]] tr_address incoming_peer_address() const override
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{
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return session_.publicAddress(TR_AF_INET);
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}
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[[nodiscard]] tr_port local_peer_port() const override
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{
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return session_.localPeerPort();
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}
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[[nodiscard]] libtransmission::TimerMaker& timer_maker() override
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{
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return session_.timerMaker();
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}
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void on_port_forwarded(tr_port public_port) override
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{
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if (session_.advertised_peer_port_ != public_port)
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{
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session_.advertised_peer_port_ = public_port;
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session_.onAdvertisedPeerPortChanged();
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}
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}
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private:
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tr_session& session_;
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};
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class WebMediator final : public tr_web::Mediator
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{
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public:
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explicit WebMediator(tr_session* session) noexcept
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: session_{ session }
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{
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}
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[[nodiscard]] std::optional<std::string> cookieFile() const override;
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[[nodiscard]] std::optional<std::string> publicAddressV4() const override;
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[[nodiscard]] std::optional<std::string> publicAddressV6() const override;
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[[nodiscard]] std::optional<std::string_view> userAgent() const override;
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[[nodiscard]] size_t clamp(int torrent_id, size_t byte_count) const override;
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[[nodiscard]] time_t now() const override;
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void notifyBandwidthConsumed(int torrent_id, size_t byte_count) override;
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// runs the tr_web::fetch response callback in the libtransmission thread
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void run(tr_web::FetchDoneFunc&& func, tr_web::FetchResponse&& response) const override;
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private:
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tr_session* const session_;
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};
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class LpdMediator final : public tr_lpd::Mediator
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{
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public:
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explicit LpdMediator(tr_session& session) noexcept
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: session_{ session }
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{
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}
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[[nodiscard]] tr_port port() const override
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{
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return session_.advertisedPeerPort();
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}
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[[nodiscard]] bool allowsLPD() const override
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{
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return session_.allowsLPD();
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}
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[[nodiscard]] libtransmission::TimerMaker& timerMaker() override
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{
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return session_.timerMaker();
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}
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[[nodiscard]] std::vector<TorrentInfo> torrents() const override;
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bool onPeerFound(std::string_view info_hash_str, tr_address address, tr_port port) override;
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void setNextAnnounceTime(std::string_view info_hash_str, time_t announce_after) override;
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private:
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tr_session& session_;
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};
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// UDP connectivity used for the DHT and µTP
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class tr_udp_core
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{
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public:
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tr_udp_core(tr_session& session, tr_port udp_port);
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~tr_udp_core();
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void sendto(void const* buf, size_t buflen, struct sockaddr const* to, socklen_t tolen) const;
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[[nodiscard]] constexpr auto socket4() const noexcept
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{
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return udp4_socket_;
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}
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[[nodiscard]] constexpr auto socket6() const noexcept
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{
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return udp6_socket_;
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}
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private:
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tr_port const udp_port_;
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tr_session& session_;
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tr_socket_t udp4_socket_ = TR_BAD_SOCKET;
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tr_socket_t udp6_socket_ = TR_BAD_SOCKET;
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libtransmission::evhelpers::event_unique_ptr udp4_event_;
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libtransmission::evhelpers::event_unique_ptr udp6_event_;
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};
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public:
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explicit tr_session(std::string_view config_dir, tr_variant* settings_dict = nullptr);
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[[nodiscard]] std::string_view sessionId() const noexcept
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{
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return session_id_.sv();
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}
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[[nodiscard]] libtransmission::TimerMaker& timerMaker() noexcept
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{
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return *timer_maker_;
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}
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[[nodiscard]] auto am_in_session_thread() const noexcept
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{
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return session_thread_->am_in_session_thread();
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}
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void runInSessionThread(std::function<void(void)>&& func)
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{
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session_thread_->run(std::move(func));
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}
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template<typename Func, typename... Args>
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void runInSessionThread(Func&& func, Args&&... args)
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{
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session_thread_->run(std::forward<Func&&>(func), std::forward<Args>(args)...);
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}
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[[nodiscard]] auto* event_base() noexcept
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{
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return session_thread_->event_base();
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}
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[[nodiscard]] constexpr auto& torrents()
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{
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return torrents_;
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}
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[[nodiscard]] constexpr auto const& torrents() const
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{
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return torrents_;
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}
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[[nodiscard]] auto unique_lock() const
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{
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return std::unique_lock(session_mutex_);
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}
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// paths
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[[nodiscard]] constexpr auto const& configDir() const noexcept
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{
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return config_dir_;
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}
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[[nodiscard]] constexpr auto const& torrentDir() const noexcept
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{
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return torrent_dir_;
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}
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[[nodiscard]] constexpr auto const& resumeDir() const noexcept
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{
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return resume_dir_;
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}
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[[nodiscard]] constexpr auto const& downloadDir() const noexcept
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{
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return settings_.download_dir;
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}
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void setDownloadDir(std::string_view dir)
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{
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settings_.download_dir = dir;
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}
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// default trackers
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// (trackers to apply automatically to public torrents)
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[[nodiscard]] constexpr auto const& defaultTrackersStr() const noexcept
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{
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return settings_.default_trackers_str;
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}
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[[nodiscard]] constexpr auto const& defaultTrackers() const noexcept
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{
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return default_trackers_;
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}
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void setDefaultTrackers(std::string_view trackers);
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// incomplete dir
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[[nodiscard]] constexpr auto const& incompleteDir() const noexcept
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{
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return settings_.incomplete_dir;
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}
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void setIncompleteDir(std::string_view dir)
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{
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settings_.incomplete_dir = dir;
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}
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[[nodiscard]] constexpr auto useIncompleteDir() const noexcept
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{
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return settings_.incomplete_dir_enabled;
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}
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constexpr void useIncompleteDir(bool enabled) noexcept
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{
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settings_.incomplete_dir_enabled = enabled;
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}
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// scripts
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constexpr void useScript(TrScript i, bool enabled)
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{
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scriptEnabledFlag(i) = enabled;
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}
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[[nodiscard]] constexpr bool useScript(TrScript i) const
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{
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return const_cast<tr_session*>(this)->scriptEnabledFlag(i);
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}
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void setScript(TrScript i, std::string_view path)
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{
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scriptFilename(i) = path;
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}
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[[nodiscard]] constexpr auto const& script(TrScript i) const
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{
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return const_cast<tr_session*>(this)->scriptFilename(i);
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}
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// blocklist
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[[nodiscard]] constexpr auto useBlocklist() const noexcept
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{
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return settings_.blocklist_enabled;
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}
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void useBlocklist(bool enabled);
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[[nodiscard]] constexpr auto const& blocklistUrl() const noexcept
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{
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return settings_.blocklist_url;
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}
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void setBlocklistUrl(std::string_view url)
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{
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settings_.blocklist_url = url;
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}
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// RPC
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void setRpcWhitelist(std::string_view whitelist) const;
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void useRpcWhitelist(bool enabled) const;
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[[nodiscard]] bool useRpcWhitelist() const;
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// peer networking
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[[nodiscard]] constexpr auto const& peerCongestionAlgorithm() const noexcept
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{
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return settings_.peer_congestion_algorithm;
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}
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void setPeerCongestionAlgorithm(std::string_view algorithm)
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{
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settings_.peer_congestion_algorithm = algorithm;
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}
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void setSocketTOS(tr_socket_t sock, tr_address_type type) const
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{
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tr_netSetTOS(sock, settings_.peer_socket_tos, type);
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}
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[[nodiscard]] constexpr auto peerLimit() const noexcept
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{
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return settings_.peer_limit_global;
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}
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[[nodiscard]] constexpr auto peerLimitPerTorrent() const noexcept
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{
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return settings_.peer_limit_per_torrent;
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}
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// bandwidth
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[[nodiscard]] tr_bandwidth& getBandwidthGroup(std::string_view name);
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//
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[[nodiscard]] constexpr auto& openFiles() noexcept
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{
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return open_files_;
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}
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void closeTorrentFiles(tr_torrent* tor) noexcept;
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void closeTorrentFile(tr_torrent* tor, tr_file_index_t file_num) noexcept;
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// announce ip
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[[nodiscard]] constexpr std::string const& announceIP() const noexcept
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{
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return settings_.announce_ip;
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}
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void setAnnounceIP(std::string_view ip)
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{
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settings_.announce_ip = ip;
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}
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[[nodiscard]] constexpr bool useAnnounceIP() const noexcept
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{
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return settings_.announce_ip_enabled;
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}
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constexpr void useAnnounceIP(bool enabled) noexcept
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{
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settings_.announce_ip_enabled = enabled;
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}
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// callbacks
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using queue_start_callback_t = void (*)(tr_session*, tr_torrent*, void* user_data);
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constexpr void setQueueStartCallback(queue_start_callback_t cb, void* user_data)
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{
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queue_start_callback_ = cb;
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queue_start_user_data_ = user_data;
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}
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void onQueuedTorrentStarted(tr_torrent* tor)
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{
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if (queue_start_callback_ != nullptr)
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{
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queue_start_callback_(this, tor, queue_start_user_data_);
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}
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}
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constexpr void setIdleLimitHitCallback(tr_session_idle_limit_hit_func cb, void* user_data)
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{
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idle_limit_hit_callback_ = cb;
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idle_limit_hit_user_data_ = user_data;
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}
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void onIdleLimitHit(tr_torrent* tor)
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{
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if (idle_limit_hit_callback_ != nullptr)
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{
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idle_limit_hit_callback_(this, tor, idle_limit_hit_user_data_);
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}
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}
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constexpr void setRatioLimitHitCallback(tr_session_ratio_limit_hit_func cb, void* user_data)
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{
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ratio_limit_hit_cb_ = cb;
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ratio_limit_hit_user_data_ = user_data;
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}
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void onRatioLimitHit(tr_torrent* tor)
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{
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if (ratio_limit_hit_cb_ != nullptr)
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{
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ratio_limit_hit_cb_(this, tor, ratio_limit_hit_user_data_);
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}
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}
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constexpr void setMetadataCallback(tr_session_metadata_func cb, void* user_data)
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{
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got_metadata_cb_ = cb;
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got_metadata_user_data_ = user_data;
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}
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void onMetadataCompleted(tr_torrent* tor)
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{
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if (got_metadata_cb_ != nullptr)
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{
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got_metadata_cb_(this, tor, got_metadata_user_data_);
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}
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|
}
|
|
|
|
constexpr void setTorrentCompletenessCallback(tr_torrent_completeness_func cb, void* user_data)
|
|
{
|
|
completeness_func_ = cb;
|
|
completeness_func_user_data_ = user_data;
|
|
}
|
|
|
|
void onTorrentCompletenessChanged(tr_torrent* tor, tr_completeness completeness, bool was_running)
|
|
{
|
|
if (completeness_func_ != nullptr)
|
|
{
|
|
completeness_func_(tor, completeness, was_running, completeness_func_user_data_);
|
|
}
|
|
}
|
|
|
|
/// stats
|
|
|
|
[[nodiscard]] constexpr auto& stats() noexcept
|
|
{
|
|
return session_stats_;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto const& stats() const noexcept
|
|
{
|
|
return session_stats_;
|
|
}
|
|
|
|
constexpr void add_uploaded(uint32_t n_bytes) noexcept
|
|
{
|
|
stats().add_uploaded(n_bytes);
|
|
}
|
|
|
|
constexpr void add_downloaded(uint32_t n_bytes) noexcept
|
|
{
|
|
stats().add_downloaded(n_bytes);
|
|
}
|
|
|
|
constexpr void add_file_created() noexcept
|
|
{
|
|
stats().add_file_created();
|
|
}
|
|
|
|
// The incoming peer port that's been opened on the local machine
|
|
// that Transmission is running on.
|
|
[[nodiscard]] constexpr tr_port localPeerPort() const noexcept
|
|
{
|
|
return local_peer_port_;
|
|
}
|
|
|
|
[[nodiscard]] constexpr tr_port udpPort() const noexcept
|
|
{
|
|
// Always use the same port number that's used for incoming TCP connections.
|
|
// This simplifies port forwarding and reduces the chance of confusion,
|
|
// since incoming UDP and TCP connections will use the same port number
|
|
return localPeerPort();
|
|
}
|
|
|
|
// The incoming peer port that's been opened on the public-facing
|
|
// device. This is usually the same as localPeerPort() but can differ,
|
|
// e.g. if the public device is a router that chose to use a different
|
|
// port than the one requested by Transmission.
|
|
[[nodiscard]] constexpr tr_port advertisedPeerPort() const noexcept
|
|
{
|
|
return advertised_peer_port_;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto queueEnabled(tr_direction dir) const noexcept
|
|
{
|
|
return dir == TR_DOWN ? settings_.download_queue_enabled : settings_.seed_queue_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto queueSize(tr_direction dir) const noexcept
|
|
{
|
|
return dir == TR_DOWN ? settings_.download_queue_size : settings_.seed_queue_size;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto queueStalledEnabled() const noexcept
|
|
{
|
|
return settings_.queue_stalled_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto queueStalledMinutes() const noexcept
|
|
{
|
|
return settings_.queue_stalled_minutes;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto uploadSlotsPerTorrent() const noexcept
|
|
{
|
|
return settings_.upload_slots_per_torrent;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto isClosing() const noexcept
|
|
{
|
|
return is_closing_;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto encryptionMode() const noexcept
|
|
{
|
|
return settings_.encryption_mode;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto preallocationMode() const noexcept
|
|
{
|
|
return settings_.preallocation_mode;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto shouldScrapePausedTorrents() const noexcept
|
|
{
|
|
return settings_.should_scrape_paused_torrents;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto shouldPauseAddedTorrents() const noexcept
|
|
{
|
|
return !settings_.should_start_added_torrents;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto shouldFullyVerifyAddedTorrents() const noexcept
|
|
{
|
|
return settings_.torrent_added_verify_mode == TR_VERIFY_ADDED_FULL;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto shouldDeleteSource() const noexcept
|
|
{
|
|
return settings_.should_delete_source_torrents;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto allowsDHT() const noexcept
|
|
{
|
|
return settings_.dht_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr bool allowsLPD() const noexcept
|
|
{
|
|
return settings_.lpd_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto allowsPEX() const noexcept
|
|
{
|
|
return settings_.pex_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto allowsTCP() const noexcept
|
|
{
|
|
return settings_.tcp_enabled;
|
|
}
|
|
|
|
[[nodiscard]] bool allowsUTP() const noexcept;
|
|
|
|
[[nodiscard]] constexpr auto allowsPrefetch() const noexcept
|
|
{
|
|
return settings_.is_prefetch_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto isIdleLimited() const noexcept
|
|
{
|
|
return settings_.idle_seeding_limit_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto idleLimitMinutes() const noexcept
|
|
{
|
|
return settings_.idle_seeding_limit_minutes;
|
|
}
|
|
|
|
[[nodiscard]] std::vector<tr_torrent*> getAllTorrents() const
|
|
{
|
|
return std::vector<tr_torrent*>{ std::begin(torrents()), std::end(torrents()) };
|
|
}
|
|
|
|
/*module_visible*/
|
|
|
|
auto rpcNotify(tr_rpc_callback_type type, tr_torrent* tor = nullptr)
|
|
{
|
|
if (rpc_func_ != nullptr)
|
|
{
|
|
return (*rpc_func_)(this, type, tor, rpc_func_user_data_);
|
|
}
|
|
|
|
return TR_RPC_OK;
|
|
}
|
|
|
|
[[nodiscard]] size_t countQueueFreeSlots(tr_direction dir) const noexcept;
|
|
|
|
[[nodiscard]] std::vector<tr_torrent*> getNextQueuedTorrents(tr_direction dir, size_t num_wanted) const;
|
|
|
|
[[nodiscard]] bool addressIsBlocked(tr_address const& addr) const noexcept;
|
|
|
|
[[nodiscard]] bool has_ip_protocol(tr_address_type type) const noexcept
|
|
{
|
|
TR_ASSERT(type == TR_AF_INET || type == TR_AF_INET6);
|
|
return global_ip_cache_->has_ip_protocol(type);
|
|
}
|
|
|
|
[[nodiscard]] tr_address publicAddress(tr_address_type type) const noexcept;
|
|
|
|
[[nodiscard]] std::optional<tr_address> global_address(tr_address_type type) const noexcept
|
|
{
|
|
TR_ASSERT(type == TR_AF_INET || type == TR_AF_INET6);
|
|
return global_ip_cache_->global_addr(type);
|
|
}
|
|
|
|
bool set_global_address(tr_address const& addr) noexcept
|
|
{
|
|
return global_ip_cache_->set_global_addr(addr.type, addr);
|
|
}
|
|
|
|
[[nodiscard]] std::optional<tr_address> global_source_address(tr_address_type type) const noexcept
|
|
{
|
|
TR_ASSERT(type == TR_AF_INET || type == TR_AF_INET6);
|
|
return global_ip_cache_->global_source_addr(type);
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto speedLimitKBps(tr_direction dir) const noexcept
|
|
{
|
|
return dir == TR_DOWN ? settings_.speed_limit_down : settings_.speed_limit_up;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto isSpeedLimited(tr_direction dir) const noexcept
|
|
{
|
|
return dir == TR_DOWN ? settings_.speed_limit_down_enabled : settings_.speed_limit_up_enabled;
|
|
}
|
|
|
|
[[nodiscard]] auto pieceSpeedBps(tr_direction dir) const noexcept
|
|
{
|
|
return top_bandwidth_.get_piece_speed_bytes_per_second(0, dir);
|
|
}
|
|
|
|
[[nodiscard]] std::optional<tr_bytes_per_second_t> activeSpeedLimitBps(tr_direction dir) const noexcept;
|
|
|
|
[[nodiscard]] constexpr auto isIncompleteFileNamingEnabled() const noexcept
|
|
{
|
|
return settings_.is_incomplete_file_naming_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto isPortRandom() const noexcept
|
|
{
|
|
return settings_.peer_port_random_on_start;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto isRatioLimited() const noexcept
|
|
{
|
|
return settings_.ratio_limit_enabled;
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto desiredRatio() const noexcept
|
|
{
|
|
return settings_.ratio_limit;
|
|
}
|
|
|
|
void verifyRemove(tr_torrent* tor)
|
|
{
|
|
if (verifier_)
|
|
{
|
|
verifier_->remove(tor);
|
|
}
|
|
}
|
|
|
|
void verifyAdd(tr_torrent* tor)
|
|
{
|
|
if (verifier_)
|
|
{
|
|
verifier_->add(tor);
|
|
}
|
|
}
|
|
|
|
void fetch(tr_web::FetchOptions&& options) const
|
|
{
|
|
if (web_)
|
|
{
|
|
web_->fetch(std::move(options));
|
|
}
|
|
}
|
|
|
|
[[nodiscard]] constexpr auto const& bandwidthGroups() const noexcept
|
|
{
|
|
return bandwidth_groups_;
|
|
}
|
|
|
|
void addIncoming(tr_peer_socket&& socket);
|
|
|
|
void addTorrent(tr_torrent* tor);
|
|
|
|
void addDhtNode(tr_address const& addr, tr_port port)
|
|
{
|
|
if (dht_)
|
|
{
|
|
dht_->add_node(addr, port);
|
|
}
|
|
}
|
|
|
|
private:
|
|
constexpr bool& scriptEnabledFlag(TrScript i)
|
|
{
|
|
if (i == TR_SCRIPT_ON_TORRENT_ADDED)
|
|
{
|
|
return settings_.script_torrent_added_enabled;
|
|
}
|
|
|
|
if (i == TR_SCRIPT_ON_TORRENT_DONE)
|
|
{
|
|
return settings_.script_torrent_done_enabled;
|
|
}
|
|
|
|
return settings_.script_torrent_done_seeding_enabled;
|
|
}
|
|
|
|
constexpr std::string& scriptFilename(TrScript i)
|
|
{
|
|
if (i == TR_SCRIPT_ON_TORRENT_ADDED)
|
|
{
|
|
return settings_.script_torrent_added_filename;
|
|
}
|
|
|
|
if (i == TR_SCRIPT_ON_TORRENT_DONE)
|
|
{
|
|
return settings_.script_torrent_done_filename;
|
|
}
|
|
|
|
return settings_.script_torrent_done_seeding_filename;
|
|
}
|
|
|
|
[[nodiscard]] tr_port randomPort() const;
|
|
|
|
void onAdvertisedPeerPortChanged();
|
|
|
|
struct init_data;
|
|
void initImpl(init_data&);
|
|
void setSettings(tr_variant* settings_dict, bool force);
|
|
void setSettings(tr_session_settings&& settings, bool force);
|
|
|
|
void closeImplPart1(std::promise<void>* closed_promise, std::chrono::time_point<std::chrono::steady_clock> deadline);
|
|
void closeImplPart2(std::promise<void>* closed_promise, std::chrono::time_point<std::chrono::steady_clock> deadline);
|
|
|
|
void onNowTimer();
|
|
|
|
static void onIncomingPeerConnection(tr_socket_t fd, void* vsession);
|
|
|
|
friend class libtransmission::test::SessionTest;
|
|
|
|
friend bool tr_blocklistExists(tr_session const* session);
|
|
friend bool tr_sessionGetAntiBruteForceEnabled(tr_session const* session);
|
|
friend bool tr_sessionIsPortForwardingEnabled(tr_session const* session);
|
|
friend bool tr_sessionIsRPCEnabled(tr_session const* session);
|
|
friend bool tr_sessionIsRPCPasswordEnabled(tr_session const* session);
|
|
friend bool tr_sessionUsesAltSpeed(tr_session const* session);
|
|
friend bool tr_sessionUsesAltSpeedTime(tr_session const* session);
|
|
friend char const* tr_sessionGetRPCPassword(tr_session const* session);
|
|
friend char const* tr_sessionGetRPCUsername(tr_session const* session);
|
|
friend char const* tr_sessionGetRPCWhitelist(tr_session const* session);
|
|
friend int tr_sessionGetAntiBruteForceThreshold(tr_session const* session);
|
|
friend size_t tr_blocklistGetRuleCount(tr_session const* session);
|
|
friend size_t tr_blocklistSetContent(tr_session* session, char const* content_filename);
|
|
friend size_t tr_sessionGetAltSpeedBegin(tr_session const* session);
|
|
friend size_t tr_sessionGetAltSpeedEnd(tr_session const* session);
|
|
friend size_t tr_sessionGetCacheLimit_MB(tr_session const* session);
|
|
friend tr_kilobytes_per_second_t tr_sessionGetAltSpeed_KBps(tr_session const* session, tr_direction dir);
|
|
friend tr_kilobytes_per_second_t tr_sessionGetSpeedLimit_KBps(tr_session const* session, tr_direction dir);
|
|
friend tr_port_forwarding_state tr_sessionGetPortForwarding(tr_session const* session);
|
|
friend tr_sched_day tr_sessionGetAltSpeedDay(tr_session const* session);
|
|
friend tr_session* tr_sessionInit(char const* config_dir, bool message_queueing_enabled, tr_variant* client_settings);
|
|
friend uint16_t tr_sessionGetPeerPort(tr_session const* session);
|
|
friend uint16_t tr_sessionGetRPCPort(tr_session const* session);
|
|
friend uint16_t tr_sessionSetPeerPortRandom(tr_session* session);
|
|
friend void tr_sessionClose(tr_session* session, size_t timeout_secs);
|
|
friend void tr_sessionGetSettings(tr_session const* s, tr_variant* setme_dictionary);
|
|
friend void tr_sessionLimitSpeed(tr_session* session, tr_direction dir, bool limited);
|
|
friend void tr_sessionReloadBlocklists(tr_session* session);
|
|
friend void tr_sessionSet(tr_session* session, tr_variant* settings);
|
|
friend void tr_sessionSetAltSpeedBegin(tr_session* session, size_t minutes_since_midnight);
|
|
friend void tr_sessionSetAltSpeedDay(tr_session* session, tr_sched_day days);
|
|
friend void tr_sessionSetAltSpeedEnd(tr_session* session, size_t minutes_since_midnight);
|
|
friend void tr_sessionSetAltSpeedFunc(tr_session* session, tr_altSpeedFunc func, void* user_data);
|
|
friend void tr_sessionSetAltSpeed_KBps(tr_session* session, tr_direction dir, tr_bytes_per_second_t limit);
|
|
friend void tr_sessionSetAntiBruteForceEnabled(tr_session* session, bool is_enabled);
|
|
friend void tr_sessionSetAntiBruteForceThreshold(tr_session* session, int max_bad_requests);
|
|
friend void tr_sessionSetCacheLimit_MB(tr_session* session, size_t mb);
|
|
friend void tr_sessionSetDHTEnabled(tr_session* session, bool enabled);
|
|
friend void tr_sessionSetDeleteSource(tr_session* session, bool delete_source);
|
|
friend void tr_sessionSetEncryption(tr_session* session, tr_encryption_mode mode);
|
|
friend void tr_sessionSetIdleLimit(tr_session* session, uint16_t idle_minutes);
|
|
friend void tr_sessionSetIdleLimited(tr_session* session, bool is_limited);
|
|
friend void tr_sessionSetIncompleteFileNamingEnabled(tr_session* session, bool enabled);
|
|
friend void tr_sessionSetLPDEnabled(tr_session* session, bool enabled);
|
|
friend void tr_sessionSetPaused(tr_session* session, bool is_paused);
|
|
friend void tr_sessionSetPeerLimit(tr_session* session, uint16_t max_global_peers);
|
|
friend void tr_sessionSetPeerLimitPerTorrent(tr_session* session, uint16_t max_peers);
|
|
friend void tr_sessionSetPeerPort(tr_session* session, uint16_t hport);
|
|
friend void tr_sessionSetPeerPortRandomOnStart(tr_session* session, bool random);
|
|
friend void tr_sessionSetPexEnabled(tr_session* session, bool enabled);
|
|
friend void tr_sessionSetPortForwardingEnabled(tr_session* session, bool enabled);
|
|
friend void tr_sessionSetQueueEnabled(tr_session* session, tr_direction dir, bool do_limit_simultaneous_torrents);
|
|
friend void tr_sessionSetQueueSize(tr_session* session, tr_direction dir, size_t max_simultaneous_torrents);
|
|
friend void tr_sessionSetQueueStalledEnabled(tr_session* session, bool is_enabled);
|
|
friend void tr_sessionSetQueueStalledMinutes(tr_session* session, int minutes);
|
|
friend void tr_sessionSetRPCCallback(tr_session* session, tr_rpc_func func, void* user_data);
|
|
friend void tr_sessionSetRPCEnabled(tr_session* session, bool is_enabled);
|
|
friend void tr_sessionSetRPCPassword(tr_session* session, char const* password);
|
|
friend void tr_sessionSetRPCPasswordEnabled(tr_session* session, bool enabled);
|
|
friend void tr_sessionSetRPCPort(tr_session* session, uint16_t hport);
|
|
friend void tr_sessionSetRPCUsername(tr_session* session, char const* username);
|
|
friend void tr_sessionSetRatioLimit(tr_session* session, double desired_ratio);
|
|
friend void tr_sessionSetRatioLimited(tr_session* session, bool is_limited);
|
|
friend void tr_sessionSetSpeedLimit_KBps(tr_session* session, tr_direction dir, tr_kilobytes_per_second_t limit);
|
|
friend void tr_sessionSetUTPEnabled(tr_session* session, bool enabled);
|
|
friend void tr_sessionUseAltSpeed(tr_session* session, bool enabled);
|
|
friend void tr_sessionUseAltSpeedTime(tr_session* session, bool enabled);
|
|
|
|
public:
|
|
/// constexpr fields
|
|
|
|
static constexpr std::array<std::tuple<tr_quark, tr_quark, TrScript>, 3> Scripts{
|
|
{ { TR_KEY_script_torrent_added_enabled, TR_KEY_script_torrent_added_filename, TR_SCRIPT_ON_TORRENT_ADDED },
|
|
{ TR_KEY_script_torrent_done_enabled, TR_KEY_script_torrent_done_filename, TR_SCRIPT_ON_TORRENT_DONE },
|
|
{ TR_KEY_script_torrent_done_seeding_enabled,
|
|
TR_KEY_script_torrent_done_seeding_filename,
|
|
TR_SCRIPT_ON_TORRENT_DONE_SEEDING } }
|
|
};
|
|
|
|
private:
|
|
/// const fields
|
|
|
|
std::string const config_dir_;
|
|
std::string const resume_dir_;
|
|
std::string const torrent_dir_;
|
|
std::string const blocklist_dir_;
|
|
|
|
std::unique_ptr<tr_session_thread> const session_thread_;
|
|
|
|
// depends-on: session_thread_
|
|
std::unique_ptr<libtransmission::TimerMaker> const timer_maker_;
|
|
|
|
/// trivial type fields
|
|
|
|
tr_session_settings settings_;
|
|
|
|
queue_start_callback_t queue_start_callback_ = nullptr;
|
|
void* queue_start_user_data_ = nullptr;
|
|
|
|
tr_session_idle_limit_hit_func idle_limit_hit_callback_ = nullptr;
|
|
void* idle_limit_hit_user_data_ = nullptr;
|
|
|
|
tr_session_ratio_limit_hit_func ratio_limit_hit_cb_ = nullptr;
|
|
void* ratio_limit_hit_user_data_ = nullptr;
|
|
|
|
tr_session_metadata_func got_metadata_cb_ = nullptr;
|
|
void* got_metadata_user_data_ = nullptr;
|
|
|
|
tr_torrent_completeness_func completeness_func_ = nullptr;
|
|
void* completeness_func_user_data_ = nullptr;
|
|
|
|
tr_rpc_func rpc_func_ = nullptr;
|
|
void* rpc_func_user_data_ = nullptr;
|
|
|
|
tr_altSpeedFunc alt_speed_active_changed_func_ = nullptr;
|
|
void* alt_speed_active_changed_func_user_data_ = nullptr;
|
|
|
|
// The local peer port that we bind a socket to for listening
|
|
// to incoming peer connections. Usually the same as
|
|
// `settings_.peer_port` but can differ if
|
|
// `settings_.peer_port_random_on_start` is enabled.
|
|
tr_port local_peer_port_;
|
|
|
|
// The incoming peer port that's been opened on the public-facing
|
|
// device. This is usually the same as localPeerPort() but can differ,
|
|
// e.g. if the public device is a router that chose to use a different
|
|
// port than the one requested by Transmission.
|
|
tr_port advertised_peer_port_;
|
|
|
|
bool is_closing_ = false;
|
|
|
|
/// fields that aren't trivial,
|
|
/// but are self-contained / don't hold references to others
|
|
|
|
// used during shutdown:
|
|
// how many &event=stopped announces are still being sent to trackers
|
|
std::atomic<size_t> n_pending_stops_ = {};
|
|
|
|
mutable std::recursive_mutex session_mutex_;
|
|
|
|
tr_stats session_stats_{ config_dir_, time(nullptr) };
|
|
|
|
tr_announce_list default_trackers_;
|
|
|
|
tr_session_id session_id_;
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tr_open_files open_files_;
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std::vector<libtransmission::Blocklist> blocklists_;
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/// other fields
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// depends-on: session_thread_, settings_.bind_address_ipv4, local_peer_port_, global_ip_cache (via tr_session::publicAddress())
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std::optional<BoundSocket> bound_ipv4_;
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// depends-on: session_thread_, settings_.bind_address_ipv6, local_peer_port_, global_ip_cache (via tr_session::publicAddress())
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std::optional<BoundSocket> bound_ipv6_;
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public:
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// depends-on: settings_, announcer_udp_, global_ip_cache_
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// FIXME(ckerr): circular dependency udp_core -> announcer_udp -> announcer_udp_mediator -> udp_core
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std::unique_ptr<tr_udp_core> udp_core_;
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// monitors the "global pool" speeds
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tr_bandwidth top_bandwidth_;
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private:
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// depends-on: top_bandwidth_
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std::vector<std::pair<tr_interned_string, std::unique_ptr<tr_bandwidth>>> bandwidth_groups_;
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// depends-on: timer_maker_, settings_, local_peer_port_
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PortForwardingMediator port_forwarding_mediator_{ *this };
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std::unique_ptr<tr_port_forwarding> port_forwarding_ = tr_port_forwarding::create(port_forwarding_mediator_);
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// depends-on: session_thread_, top_bandwidth_
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AltSpeedMediator alt_speed_mediator_{ *this };
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tr_session_alt_speeds alt_speeds_{ alt_speed_mediator_ };
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public:
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// depends-on: udp_core_
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struct struct_utp_context* utp_context = nullptr;
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private:
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// depends-on: open_files_
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tr_torrents torrents_;
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// depends-on: settings_, session_thread_, timer_maker_, web_
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std::unique_ptr<tr_global_ip_cache> global_ip_cache_;
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// depends-on: settings_, session_thread_, torrents_, global_ip_cache (via tr_session::publicAddress())
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WebMediator web_mediator_{ this };
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std::unique_ptr<tr_web> web_ = tr_web::create(this->web_mediator_);
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public:
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// depends-on: settings_, open_files_, torrents_
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std::unique_ptr<Cache> cache = std::make_unique<Cache>(torrents_, 1024 * 1024 * 2);
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private:
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// depends-on: timer_maker_, top_bandwidth_, utp_context, torrents_, web_
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std::unique_ptr<struct tr_peerMgr, void (*)(struct tr_peerMgr*)> peer_mgr_;
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// depends-on: peer_mgr_, advertised_peer_port_, torrents_
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LpdMediator lpd_mediator_{ *this };
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// depends-on: lpd_mediator_
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std::unique_ptr<tr_lpd> lpd_;
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// depends-on: udp_core_
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AnnouncerUdpMediator announcer_udp_mediator_{ *this };
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// depends-on: timer_maker_, torrents_, peer_mgr_
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DhtMediator dht_mediator_{ *this };
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public:
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// depends-on: announcer_udp_mediator_
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std::unique_ptr<tr_announcer_udp> announcer_udp_ = tr_announcer_udp::create(announcer_udp_mediator_);
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// depends-on: settings_, torrents_, web_, announcer_udp_
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std::unique_ptr<tr_announcer> announcer_ = tr_announcer::create(this, *announcer_udp_, n_pending_stops_);
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// depends-on: public_peer_port_, udp_core_, dht_mediator_
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std::unique_ptr<tr_dht> dht_;
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private:
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// depends-on: session_thread_, timer_maker_, settings_, torrents_, web_
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std::unique_ptr<tr_rpc_server> rpc_server_;
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// depends-on: alt_speeds_, udp_core_, torrents_
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std::unique_ptr<libtransmission::Timer> now_timer_;
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// depends-on: torrents_
|
|
std::unique_ptr<libtransmission::Timer> save_timer_;
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|
|
|
std::unique_ptr<tr_verify_worker> verifier_ = std::make_unique<tr_verify_worker>();
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|
|
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public:
|
|
std::unique_ptr<libtransmission::Timer> utp_timer;
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|
};
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constexpr bool tr_isPriority(tr_priority_t p)
|
|
{
|
|
return p == TR_PRI_LOW || p == TR_PRI_NORMAL || p == TR_PRI_HIGH;
|
|
}
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