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transmission/libtransmission/rpcimpl.cc

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// This file Copyright © Mnemosyne LLC.
// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#include <algorithm>
#include <array>
#include <cerrno>
#include <cstdint>
#include <ctime>
#include <iterator>
#include <memory>
#include <numeric>
#include <set>
#include <string>
#include <string_view>
#include <utility>
#include <vector>
#include <fmt/core.h>
#include <libdeflate.h>
#include "libtransmission/transmission.h"
#include "libtransmission/announcer.h"
#include "libtransmission/crypto-utils.h"
#include "libtransmission/error.h"
#include "libtransmission/file.h"
#include "libtransmission/log.h"
#include "libtransmission/net.h"
#include "libtransmission/peer-mgr.h"
#include "libtransmission/quark.h"
#include "libtransmission/rpcimpl.h"
#include "libtransmission/session.h"
#include "libtransmission/torrent-ctor.h"
#include "libtransmission/torrent.h"
#include "libtransmission/tr-assert.h"
#include "libtransmission/tr-strbuf.h"
#include "libtransmission/utils.h"
#include "libtransmission/values.h"
#include "libtransmission/variant.h"
#include "libtransmission/version.h"
#include "libtransmission/web-utils.h"
#include "libtransmission/web.h"
using namespace std::literals;
using namespace libtransmission::Values;
namespace
{
auto constexpr RecentlyActiveSeconds = time_t{ 60 };
auto constexpr RpcVersion = int64_t{ 18 };
auto constexpr RpcVersionMin = int64_t{ 14 };
auto constexpr RpcVersionSemver = "5.4.0"sv;
enum class TrFormat : uint8_t
{
Object,
Table
};
// ---
/* For functions that can't be immediately executed, like torrentAdd,
* this is the callback data used to pass a response to the caller
* when the task is complete */
struct tr_rpc_idle_data
{
std::optional<int64_t> tag;
tr_session* session = nullptr;
tr_variant::Map args_out;
tr_rpc_response_func callback;
};
auto constexpr SuccessResult = "success"sv;
void tr_idle_function_done(struct tr_rpc_idle_data* data, std::string_view result)
{
// build the response
auto response_map = tr_variant::Map{ 3U };
response_map.try_emplace(TR_KEY_arguments, std::move(data->args_out));
response_map.try_emplace(TR_KEY_result, result);
if (auto const& tag = data->tag; tag.has_value())
{
response_map.try_emplace(TR_KEY_tag, *tag);
}
// send the response back to the listener
(data->callback)(data->session, tr_variant{ std::move(response_map) });
// cleanup
delete data;
}
// ---
[[nodiscard]] auto getTorrents(tr_session* session, tr_variant::Map const& args)
{
auto torrents_vec = std::vector<tr_torrent*>{};
auto& torrents = session->torrents();
torrents_vec.reserve(std::size(torrents));
auto const add_torrent_from_var = [&torrents, &torrents_vec](tr_variant const& var)
{
tr_torrent* tor = nullptr;
if (auto const val = var.value_if<int64_t>())
{
tor = torrents.get(*val);
}
if (auto const val = var.value_if<std::string_view>())
{
if (*val == "recently-active"sv)
{
auto const cutoff = tr_time() - RecentlyActiveSeconds;
auto const recent = torrents.get_matching([cutoff](auto* walk) { return walk->has_changed_since(cutoff); });
std::copy(std::begin(recent), std::end(recent), std::back_inserter(torrents_vec));
}
else
{
tor = torrents.get(*val);
}
}
if (tor != nullptr)
{
torrents_vec.push_back(tor);
}
};
if (auto const ids_iter = args.find(TR_KEY_ids); ids_iter != std::end(args))
{
auto const& ids_var = ids_iter->second;
if (auto const* ids_vec = ids_var.get_if<tr_variant::Vector>(); ids_vec != nullptr)
{
std::for_each(std::begin(*ids_vec), std::end(*ids_vec), add_torrent_from_var);
}
else
{
add_torrent_from_var(ids_var);
}
}
else // all of them
{
torrents_vec = torrents.get_all();
}
return torrents_vec;
}
void notifyBatchQueueChange(tr_session* session, std::vector<tr_torrent*> const& torrents)
{
for (auto* tor : torrents)
{
session->rpcNotify(TR_RPC_TORRENT_CHANGED, tor);
}
session->rpcNotify(TR_RPC_SESSION_QUEUE_POSITIONS_CHANGED);
}
char const* queueMoveTop(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const torrents = getTorrents(session, args_in);
tr_torrentsQueueMoveTop(std::data(torrents), std::size(torrents));
notifyBatchQueueChange(session, torrents);
return nullptr;
}
char const* queueMoveUp(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const torrents = getTorrents(session, args_in);
tr_torrentsQueueMoveUp(std::data(torrents), std::size(torrents));
notifyBatchQueueChange(session, torrents);
return nullptr;
}
char const* queueMoveDown(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const torrents = getTorrents(session, args_in);
tr_torrentsQueueMoveDown(std::data(torrents), std::size(torrents));
notifyBatchQueueChange(session, torrents);
return nullptr;
}
char const* queueMoveBottom(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const torrents = getTorrents(session, args_in);
tr_torrentsQueueMoveBottom(std::data(torrents), std::size(torrents));
notifyBatchQueueChange(session, torrents);
return nullptr;
}
char const* torrentStart(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto torrents = getTorrents(session, args_in);
std::sort(std::begin(torrents), std::end(torrents), tr_torrent::CompareQueuePosition);
for (auto* tor : torrents)
{
if (!tor->is_running())
{
tr_torrentStart(tor);
session->rpcNotify(TR_RPC_TORRENT_STARTED, tor);
}
}
return nullptr;
}
char const* torrentStartNow(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto torrents = getTorrents(session, args_in);
std::sort(std::begin(torrents), std::end(torrents), tr_torrent::CompareQueuePosition);
for (auto* tor : torrents)
{
if (!tor->is_running())
{
tr_torrentStartNow(tor);
session->rpcNotify(TR_RPC_TORRENT_STARTED, tor);
}
}
return nullptr;
}
char const* torrentStop(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
for (auto* tor : getTorrents(session, args_in))
{
if (tor->activity() != TR_STATUS_STOPPED)
{
tor->stop_soon();
session->rpcNotify(TR_RPC_TORRENT_STOPPED, tor);
}
}
return nullptr;
}
char const* torrentRemove(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const delete_flag = args_in.value_if<bool>(TR_KEY_delete_local_data).value_or(false);
auto const type = delete_flag ? TR_RPC_TORRENT_TRASHING : TR_RPC_TORRENT_REMOVING;
for (auto* tor : getTorrents(session, args_in))
{
if (auto const status = session->rpcNotify(type, tor); (status & TR_RPC_NOREMOVE) == 0)
{
tr_torrentRemove(tor, delete_flag, nullptr, nullptr);
}
}
return nullptr;
}
char const* torrentReannounce(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
for (auto* tor : getTorrents(session, args_in))
{
if (tr_torrentCanManualUpdate(tor))
{
tr_torrentManualUpdate(tor);
session->rpcNotify(TR_RPC_TORRENT_CHANGED, tor);
}
}
return nullptr;
}
char const* torrentVerify(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
for (auto* tor : getTorrents(session, args_in))
{
tr_torrentVerify(tor);
session->rpcNotify(TR_RPC_TORRENT_CHANGED, tor);
}
return nullptr;
}
// ---
namespace make_torrent_field_helpers
{
[[nodiscard]] auto make_file_wanted_vec(tr_torrent const& tor)
{
auto const n_files = tor.file_count();
auto vec = tr_variant::Vector{};
vec.reserve(n_files);
for (tr_file_index_t idx = 0U; idx != n_files; ++idx)
{
vec.emplace_back(tr_torrentFile(&tor, idx).wanted ? 1 : 0);
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_labels_vec(tr_torrent const& tor)
{
auto const& labels = tor.labels();
auto const n_labels = std::size(labels);
auto vec = tr_variant::Vector{};
vec.reserve(n_labels);
for (auto const& label : labels)
{
vec.emplace_back(tr_variant::unmanaged_string(label.sv()));
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_file_priorities_vec(tr_torrent const& tor)
{
auto const n_files = tor.file_count();
auto vec = tr_variant::Vector{};
vec.reserve(n_files);
for (tr_file_index_t idx = 0U; idx != n_files; ++idx)
{
vec.emplace_back(tr_torrentFile(&tor, idx).priority);
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_file_stats_vec(tr_torrent const& tor)
{
auto const n_files = tor.file_count();
auto vec = tr_variant::Vector{};
vec.reserve(n_files);
for (tr_file_index_t idx = 0U; idx != n_files; ++idx)
{
auto const file = tr_torrentFile(&tor, idx);
auto stats_map = tr_variant::Map{ 3U };
stats_map.try_emplace(TR_KEY_bytesCompleted, file.have);
stats_map.try_emplace(TR_KEY_priority, file.priority);
stats_map.try_emplace(TR_KEY_wanted, file.wanted);
vec.emplace_back(std::move(stats_map));
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_file_vec(tr_torrent const& tor)
{
auto const n_files = tor.file_count();
auto vec = tr_variant::Vector{};
vec.reserve(n_files);
for (tr_file_index_t idx = 0U; idx != n_files; ++idx)
{
auto const file = tr_torrentFile(&tor, idx);
auto file_map = tr_variant::Map{ 5U };
file_map.try_emplace(TR_KEY_beginPiece, file.beginPiece);
file_map.try_emplace(TR_KEY_bytesCompleted, file.have);
file_map.try_emplace(TR_KEY_endPiece, file.endPiece);
file_map.try_emplace(TR_KEY_length, file.length);
file_map.try_emplace(TR_KEY_name, file.name);
vec.emplace_back(std::move(file_map));
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_webseed_vec(tr_torrent const& tor)
{
auto const n_webseeds = tor.webseed_count();
auto vec = tr_variant::Vector{};
for (size_t idx = 0U; idx != n_webseeds; ++idx)
{
vec.emplace_back(tor.webseed(idx));
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_tracker_vec(tr_torrent const& tor)
{
auto const& trackers = tor.announce_list();
auto const n_trackers = std::size(trackers);
auto vec = tr_variant::Vector{};
vec.reserve(n_trackers);
for (auto const& tracker : trackers)
{
auto tracker_map = tr_variant::Map{ 5U };
tracker_map.try_emplace(TR_KEY_announce, tr_variant::unmanaged_string(tracker.announce.sv()));
tracker_map.try_emplace(TR_KEY_id, tracker.id);
tracker_map.try_emplace(TR_KEY_scrape, tr_variant::unmanaged_string(tracker.scrape.sv()));
tracker_map.try_emplace(TR_KEY_sitename, tr_variant::unmanaged_string(tracker.announce_parsed.sitename));
tracker_map.try_emplace(TR_KEY_tier, tracker.tier);
vec.emplace_back(std::move(tracker_map));
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_tracker_stats_vec(tr_torrent const& tor)
{
auto const n_trackers = tr_torrentTrackerCount(&tor);
auto vec = tr_variant::Vector{};
vec.reserve(n_trackers);
for (size_t idx = 0U; idx != n_trackers; ++idx)
{
auto const tracker = tr_torrentTracker(&tor, idx);
auto stats_map = tr_variant::Map{ 27U };
stats_map.try_emplace(TR_KEY_announce, tracker.announce);
stats_map.try_emplace(TR_KEY_announceState, tracker.announceState);
stats_map.try_emplace(TR_KEY_downloadCount, tracker.downloadCount);
stats_map.try_emplace(TR_KEY_hasAnnounced, tracker.hasAnnounced);
stats_map.try_emplace(TR_KEY_hasScraped, tracker.hasScraped);
stats_map.try_emplace(TR_KEY_host, tracker.host_and_port);
stats_map.try_emplace(TR_KEY_id, tracker.id);
stats_map.try_emplace(TR_KEY_isBackup, tracker.isBackup);
stats_map.try_emplace(TR_KEY_lastAnnouncePeerCount, tracker.lastAnnouncePeerCount);
stats_map.try_emplace(TR_KEY_lastAnnounceResult, tracker.lastAnnounceResult);
stats_map.try_emplace(TR_KEY_lastAnnounceStartTime, tracker.lastAnnounceStartTime);
stats_map.try_emplace(TR_KEY_lastAnnounceSucceeded, tracker.lastAnnounceSucceeded);
stats_map.try_emplace(TR_KEY_lastAnnounceTime, tracker.lastAnnounceTime);
stats_map.try_emplace(TR_KEY_lastAnnounceTimedOut, tracker.lastAnnounceTimedOut);
stats_map.try_emplace(TR_KEY_lastScrapeResult, tracker.lastScrapeResult);
stats_map.try_emplace(TR_KEY_lastScrapeStartTime, tracker.lastScrapeStartTime);
stats_map.try_emplace(TR_KEY_lastScrapeSucceeded, tracker.lastScrapeSucceeded);
stats_map.try_emplace(TR_KEY_lastScrapeTime, tracker.lastScrapeTime);
stats_map.try_emplace(TR_KEY_lastScrapeTimedOut, tracker.lastScrapeTimedOut);
stats_map.try_emplace(TR_KEY_leecherCount, tracker.leecherCount);
stats_map.try_emplace(TR_KEY_nextAnnounceTime, tracker.nextAnnounceTime);
stats_map.try_emplace(TR_KEY_nextScrapeTime, tracker.nextScrapeTime);
stats_map.try_emplace(TR_KEY_scrape, tracker.scrape);
stats_map.try_emplace(TR_KEY_scrapeState, tracker.scrapeState);
stats_map.try_emplace(TR_KEY_seederCount, tracker.seederCount);
stats_map.try_emplace(TR_KEY_sitename, tracker.sitename);
stats_map.try_emplace(TR_KEY_tier, tracker.tier);
vec.emplace_back(std::move(stats_map));
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_peer_vec(tr_torrent const& tor)
{
auto n_peers = size_t{};
auto* const peers = tr_torrentPeers(&tor, &n_peers);
auto peers_vec = tr_variant::Vector{};
peers_vec.reserve(n_peers);
for (size_t idx = 0U; idx != n_peers; ++idx)
{
auto const& peer = peers[idx];
auto peer_map = tr_variant::Map{ 16U };
peer_map.try_emplace(TR_KEY_address, peer.addr);
peer_map.try_emplace(TR_KEY_clientIsChoked, peer.clientIsChoked);
peer_map.try_emplace(TR_KEY_clientIsInterested, peer.clientIsInterested);
peer_map.try_emplace(TR_KEY_clientName, peer.client);
peer_map.try_emplace(TR_KEY_flagStr, peer.flagStr);
peer_map.try_emplace(TR_KEY_isDownloadingFrom, peer.isDownloadingFrom);
peer_map.try_emplace(TR_KEY_isEncrypted, peer.isEncrypted);
peer_map.try_emplace(TR_KEY_isIncoming, peer.isIncoming);
peer_map.try_emplace(TR_KEY_isUTP, peer.isUTP);
peer_map.try_emplace(TR_KEY_isUploadingTo, peer.isUploadingTo);
peer_map.try_emplace(TR_KEY_peerIsChoked, peer.peerIsChoked);
peer_map.try_emplace(TR_KEY_peerIsInterested, peer.peerIsInterested);
peer_map.try_emplace(TR_KEY_port, peer.port);
peer_map.try_emplace(TR_KEY_progress, peer.progress);
peer_map.try_emplace(TR_KEY_rateToClient, Speed{ peer.rateToClient_KBps, Speed::Units::KByps }.base_quantity());
peer_map.try_emplace(TR_KEY_rateToPeer, Speed{ peer.rateToPeer_KBps, Speed::Units::KByps }.base_quantity());
peers_vec.emplace_back(std::move(peer_map));
}
tr_torrentPeersFree(peers, n_peers);
return tr_variant{ std::move(peers_vec) };
}
[[nodiscard]] auto make_peer_counts_map(tr_stat const& st)
{
auto const& from = st.peersFrom;
auto peer_counts_map = tr_variant::Map{ 7U };
peer_counts_map.try_emplace(TR_KEY_fromCache, from[TR_PEER_FROM_RESUME]);
peer_counts_map.try_emplace(TR_KEY_fromDht, from[TR_PEER_FROM_DHT]);
peer_counts_map.try_emplace(TR_KEY_fromIncoming, from[TR_PEER_FROM_INCOMING]);
peer_counts_map.try_emplace(TR_KEY_fromLpd, from[TR_PEER_FROM_LPD]);
peer_counts_map.try_emplace(TR_KEY_fromLtep, from[TR_PEER_FROM_LTEP]);
peer_counts_map.try_emplace(TR_KEY_fromPex, from[TR_PEER_FROM_PEX]);
peer_counts_map.try_emplace(TR_KEY_fromTracker, from[TR_PEER_FROM_TRACKER]);
return tr_variant{ std::move(peer_counts_map) };
}
[[nodiscard]] auto make_piece_availability_vec(tr_torrent const& tor)
{
auto const n_pieces = tor.piece_count();
auto vec = tr_variant::Vector{};
vec.reserve(n_pieces);
for (tr_piece_index_t idx = 0U; idx != n_pieces; ++idx)
{
vec.emplace_back(tr_peerMgrPieceAvailability(&tor, idx));
}
return tr_variant{ std::move(vec) };
}
[[nodiscard]] auto make_piece_bitfield(tr_torrent const& tor)
{
if (tor.has_metainfo())
{
auto const bytes = tor.create_piece_bitfield();
return tr_variant{ tr_base64_encode({ reinterpret_cast<char const*>(std::data(bytes)), std::size(bytes) }) };
}
return tr_variant::unmanaged_string(""sv);
}
} // namespace make_torrent_field_helpers
[[nodiscard]] auto constexpr isSupportedTorrentGetField(tr_quark key)
{
switch (key)
{
case TR_KEY_activityDate:
case TR_KEY_addedDate:
case TR_KEY_availability:
case TR_KEY_bandwidthPriority:
case TR_KEY_comment:
case TR_KEY_corruptEver:
case TR_KEY_creator:
case TR_KEY_dateCreated:
case TR_KEY_desiredAvailable:
case TR_KEY_doneDate:
case TR_KEY_downloadDir:
case TR_KEY_downloadLimit:
case TR_KEY_downloadLimited:
case TR_KEY_downloadedEver:
case TR_KEY_editDate:
case TR_KEY_error:
case TR_KEY_errorString:
case TR_KEY_eta:
case TR_KEY_etaIdle:
case TR_KEY_fileStats:
case TR_KEY_file_count:
case TR_KEY_files:
case TR_KEY_group:
case TR_KEY_hashString:
case TR_KEY_haveUnchecked:
case TR_KEY_haveValid:
case TR_KEY_honorsSessionLimits:
case TR_KEY_id:
case TR_KEY_isFinished:
case TR_KEY_isPrivate:
case TR_KEY_isStalled:
case TR_KEY_labels:
case TR_KEY_leftUntilDone:
case TR_KEY_magnetLink:
case TR_KEY_manualAnnounceTime:
case TR_KEY_maxConnectedPeers:
case TR_KEY_metadataPercentComplete:
case TR_KEY_name:
case TR_KEY_peer_limit:
case TR_KEY_peers:
case TR_KEY_peersConnected:
case TR_KEY_peersFrom:
case TR_KEY_peersGettingFromUs:
case TR_KEY_peersSendingToUs:
case TR_KEY_percentComplete:
case TR_KEY_percentDone:
case TR_KEY_pieceCount:
case TR_KEY_pieceSize:
case TR_KEY_pieces:
case TR_KEY_primary_mime_type:
case TR_KEY_priorities:
case TR_KEY_queuePosition:
case TR_KEY_rateDownload:
case TR_KEY_rateUpload:
case TR_KEY_recheckProgress:
case TR_KEY_secondsDownloading:
case TR_KEY_secondsSeeding:
case TR_KEY_seedIdleLimit:
case TR_KEY_seedIdleMode:
case TR_KEY_seedRatioLimit:
case TR_KEY_seedRatioMode:
case TR_KEY_sequentialDownload:
case TR_KEY_sizeWhenDone:
case TR_KEY_source:
case TR_KEY_startDate:
case TR_KEY_status:
case TR_KEY_torrentFile:
case TR_KEY_totalSize:
case TR_KEY_trackerList:
case TR_KEY_trackerStats:
case TR_KEY_trackers:
case TR_KEY_uploadLimit:
case TR_KEY_uploadLimited:
case TR_KEY_uploadRatio:
case TR_KEY_uploadedEver:
case TR_KEY_wanted:
case TR_KEY_webseeds:
case TR_KEY_webseedsSendingToUs:
return true;
default:
return false;
}
}
[[nodiscard]] tr_variant make_torrent_field(tr_torrent const& tor, tr_stat const& st, tr_quark key)
{
using namespace make_torrent_field_helpers;
TR_ASSERT(isSupportedTorrentGetField(key));
// clang-format off
switch (key)
{
case TR_KEY_activityDate: return st.activityDate;
case TR_KEY_addedDate: return st.addedDate;
case TR_KEY_availability: return make_piece_availability_vec(tor);
case TR_KEY_bandwidthPriority: return tor.get_priority();
case TR_KEY_comment: return tor.comment();
case TR_KEY_corruptEver: return st.corruptEver;
case TR_KEY_creator: return tor.creator();
case TR_KEY_dateCreated: return tor.date_created();
case TR_KEY_desiredAvailable: return st.desiredAvailable;
case TR_KEY_doneDate: return st.doneDate;
case TR_KEY_downloadDir: return tr_variant::unmanaged_string(tor.download_dir().sv());
case TR_KEY_downloadLimit: return tr_torrentGetSpeedLimit_KBps(&tor, TR_DOWN);
case TR_KEY_downloadLimited: return tor.uses_speed_limit(TR_DOWN);
case TR_KEY_downloadedEver: return st.downloadedEver;
case TR_KEY_editDate: return st.editDate;
case TR_KEY_error: return st.error;
case TR_KEY_errorString: return st.errorString;
case TR_KEY_eta: return st.eta;
case TR_KEY_etaIdle: return st.etaIdle;
case TR_KEY_fileStats: return make_file_stats_vec(tor);
case TR_KEY_file_count: return tor.file_count();
case TR_KEY_files: return make_file_vec(tor);
case TR_KEY_group: return tr_variant::unmanaged_string(tor.bandwidth_group().sv());
case TR_KEY_hashString: return tr_variant::unmanaged_string(tor.info_hash_string().sv());
case TR_KEY_haveUnchecked: return st.haveUnchecked;
case TR_KEY_haveValid: return st.haveValid;
case TR_KEY_honorsSessionLimits: return tor.uses_session_limits();
case TR_KEY_id: return st.id;
case TR_KEY_isFinished: return st.finished;
case TR_KEY_isPrivate: return tor.is_private();
case TR_KEY_isStalled: return st.isStalled;
case TR_KEY_labels: return make_labels_vec(tor);
case TR_KEY_leftUntilDone: return st.leftUntilDone;
case TR_KEY_magnetLink: return tor.magnet();
case TR_KEY_manualAnnounceTime: return tr_announcerNextManualAnnounce(&tor);
case TR_KEY_maxConnectedPeers: return tor.peer_limit();
case TR_KEY_metadataPercentComplete: return st.metadataPercentComplete;
case TR_KEY_name: return tor.name();
case TR_KEY_peer_limit: return tor.peer_limit();
case TR_KEY_peers: return make_peer_vec(tor);
case TR_KEY_peersConnected: return st.peersConnected;
case TR_KEY_peersFrom: return make_peer_counts_map(st);
case TR_KEY_peersGettingFromUs: return st.peersGettingFromUs;
case TR_KEY_peersSendingToUs: return st.peersSendingToUs;
case TR_KEY_percentComplete: return st.percentComplete;
case TR_KEY_percentDone: return st.percentDone;
case TR_KEY_pieceCount: return tor.piece_count();
case TR_KEY_pieceSize: return tor.piece_size();
case TR_KEY_pieces: return make_piece_bitfield(tor);
case TR_KEY_primary_mime_type: return tr_variant::unmanaged_string(tor.primary_mime_type());
case TR_KEY_priorities: return make_file_priorities_vec(tor);
case TR_KEY_queuePosition: return st.queuePosition;
case TR_KEY_rateDownload: return Speed{ st.pieceDownloadSpeed_KBps, Speed::Units::KByps }.base_quantity();
case TR_KEY_rateUpload: return Speed{ st.pieceUploadSpeed_KBps, Speed::Units::KByps }.base_quantity();
case TR_KEY_recheckProgress: return st.recheckProgress;
case TR_KEY_secondsDownloading: return st.secondsDownloading;
case TR_KEY_secondsSeeding: return st.secondsSeeding;
case TR_KEY_seedIdleLimit: return tor.idle_limit_minutes();
case TR_KEY_seedIdleMode: return tor.idle_limit_mode();
case TR_KEY_seedRatioLimit: return tor.seed_ratio();
case TR_KEY_seedRatioMode: return tor.seed_ratio_mode();
case TR_KEY_sequentialDownload: return tor.is_sequential_download();
case TR_KEY_sizeWhenDone: return st.sizeWhenDone;
case TR_KEY_source: return tor.source();
case TR_KEY_startDate: return st.startDate;
case TR_KEY_status: return st.activity;
case TR_KEY_torrentFile: return tor.torrent_file();
case TR_KEY_totalSize: return tor.total_size();
case TR_KEY_trackerList: return tor.announce_list().to_string();
case TR_KEY_trackerStats: return make_tracker_stats_vec(tor);
case TR_KEY_trackers: return make_tracker_vec(tor);
case TR_KEY_uploadLimit: return tr_torrentGetSpeedLimit_KBps(&tor, TR_UP);
case TR_KEY_uploadLimited: return tor.uses_speed_limit(TR_UP);
case TR_KEY_uploadRatio: return st.ratio;
case TR_KEY_uploadedEver: return st.uploadedEver;
case TR_KEY_wanted: return make_file_wanted_vec(tor);
case TR_KEY_webseeds: return make_webseed_vec(tor);
case TR_KEY_webseedsSendingToUs: return st.webseedsSendingToUs;
default: return tr_variant{};
}
// clang-format on
}
[[nodiscard]] auto make_torrent_info_map(tr_torrent* const tor, tr_quark const* const fields, size_t const field_count)
{
auto const* const st = tr_torrentStat(tor);
auto info_map = tr_variant::Map{ field_count };
for (size_t i = 0; i < field_count; ++i)
{
info_map.try_emplace(fields[i], make_torrent_field(*tor, *st, fields[i]));
}
return tr_variant{ std::move(info_map) };
}
[[nodiscard]] auto make_torrent_info_vec(tr_torrent* const tor, tr_quark const* const fields, size_t const field_count)
{
auto const* const st = tr_torrentStat(tor);
auto info_vec = tr_variant::Vector{};
info_vec.reserve(field_count);
for (size_t i = 0; i < field_count; ++i)
{
info_vec.emplace_back(make_torrent_field(*tor, *st, fields[i]));
}
return tr_variant{ std::move(info_vec) };
}
[[nodiscard]] auto make_torrent_info(
tr_torrent* const tor,
TrFormat const format,
tr_quark const* const fields,
size_t const field_count)
{
return format == TrFormat::Table ? make_torrent_info_vec(tor, fields, field_count) :
make_torrent_info_map(tor, fields, field_count);
}
char const* torrentGet(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& args_out)
{
auto const torrents = getTorrents(session, args_in);
auto torrents_vec = tr_variant::Vector{};
auto const format = args_in.value_if<std::string_view>(TR_KEY_format).value_or("object"sv) == "table"sv ? TrFormat::Table :
TrFormat::Object;
if (args_in.value_if<std::string_view>(TR_KEY_ids).value_or(""sv) == "recently-active"sv)
{
auto const cutoff = tr_time() - RecentlyActiveSeconds;
auto const ids = session->torrents().removedSince(cutoff);
auto removed_vec = tr_variant::Vector{};
removed_vec.reserve(std::size(ids));
for (auto const& id : ids)
{
removed_vec.emplace_back(id);
}
args_out.try_emplace(TR_KEY_removed, std::move(removed_vec));
}
auto keys = std::vector<tr_quark>{};
if (auto const* const fields_vec = args_in.find_if<tr_variant::Vector>(TR_KEY_fields); fields_vec != nullptr)
{
auto const n_fields = std::size(*fields_vec);
keys.reserve(n_fields);
for (auto const& field : *fields_vec)
{
if (auto const field_sv = field.value_if<std::string_view>())
{
if (auto const key = tr_quark_lookup(*field_sv); key && isSupportedTorrentGetField(*key))
{
keys.emplace_back(*key);
}
}
}
}
if (std::empty(keys))
{
return "no fields specified";
}
if (format == TrFormat::Table)
{
/* first entry is an array of property names */
auto names = tr_variant::Vector{};
names.reserve(std::size(keys));
std::transform(
std::begin(keys),
std::end(keys),
std::back_inserter(names),
[](tr_quark key) { return tr_quark_get_string_view(key); });
torrents_vec.emplace_back(std::move(names));
}
for (auto* const tor : torrents)
{
torrents_vec.emplace_back(make_torrent_info(tor, format, std::data(keys), std::size(keys)));
}
args_out.try_emplace(TR_KEY_torrents, std::move(torrents_vec));
return nullptr; // no error message
}
// ---
[[nodiscard]] std::pair<tr_torrent::labels_t, char const* /*errmsg*/> make_labels(tr_variant::Vector const& labels_vec)
{
auto const n_labels = std::size(labels_vec);
auto labels = tr_torrent::labels_t{};
labels.reserve(n_labels);
for (auto const& label_var : labels_vec)
{
if (auto const value = label_var.value_if<std::string_view>())
{
auto const label = tr_strv_strip(*value);
if (std::empty(label))
{
return { {}, "labels cannot be empty" };
}
if (tr_strv_contains(label, ','))
{
return { {}, "labels cannot contain comma (,) character" };
}
labels.emplace_back(tr_quark_new(label));
}
}
return { std::move(labels), nullptr };
}
char const* set_labels(tr_torrent* tor, tr_variant::Vector const& list)
{
auto [labels, errmsg] = make_labels(list);
if (errmsg != nullptr)
{
return errmsg;
}
tor->set_labels(labels);
return nullptr;
}
[[nodiscard]] std::pair<std::vector<tr_file_index_t>, char const*> get_file_indices(
tr_torrent const* tor,
tr_variant::Vector const& files_vec)
{
auto const n_files = tor->file_count();
auto files = std::vector<tr_file_index_t>{};
files.reserve(n_files);
if (std::empty(files_vec)) // if empty set, apply to all
{
files.resize(n_files);
std::iota(std::begin(files), std::end(files), 0);
}
else
{
for (auto const& file_var : files_vec)
{
if (auto const val = file_var.value_if<int64_t>())
{
if (auto const idx = static_cast<tr_file_index_t>(*val); idx < n_files)
{
files.push_back(idx);
}
else
{
return { {}, "file index out of range" };
}
}
}
}
return { std::move(files), nullptr };
}
char const* set_file_priorities(tr_torrent* tor, tr_priority_t priority, tr_variant::Vector const& files_vec)
{
auto const [indices, errmsg] = get_file_indices(tor, files_vec);
if (errmsg != nullptr)
{
return errmsg;
}
tor->set_file_priorities(std::data(indices), std::size(indices), priority);
return nullptr; // no error
}
[[nodiscard]] char const* set_file_dls(tr_torrent* tor, bool wanted, tr_variant::Vector const& files_vec)
{
auto const [indices, errmsg] = get_file_indices(tor, files_vec);
if (errmsg != nullptr)
{
return errmsg;
}
tor->set_files_wanted(std::data(indices), std::size(indices), wanted);
return nullptr; // no error
}
char const* add_tracker_urls(tr_torrent* tor, tr_variant::Vector const& urls_vec)
{
auto ann = tor->announce_list();
auto const baseline = ann;
for (auto const& url_var : urls_vec)
{
if (auto const val = url_var.value_if<std::string_view>())
{
ann.add(*val);
}
}
if (ann == baseline) // unchanged
{
return "error setting announce list";
}
tor->set_announce_list(std::move(ann));
return nullptr;
}
char const* replace_trackers(tr_torrent* tor, tr_variant::Vector const& urls_vec)
{
auto ann = tor->announce_list();
auto const baseline = ann;
for (size_t i = 0, vec_size = std::size(urls_vec); i + 1 < vec_size; i += 2U)
{
auto const id = urls_vec[i].value_if<int64_t>();
auto const url = urls_vec[i + 1U].value_if<std::string_view>();
if (id && url)
{
ann.replace(static_cast<tr_tracker_id_t>(*id), *url);
}
}
if (ann == baseline) // unchanged
{
return "error setting announce list";
}
tor->set_announce_list(std::move(ann));
return nullptr;
}
char const* remove_trackers(tr_torrent* tor, tr_variant::Vector const& ids_vec)
{
auto ann = tor->announce_list();
auto const baseline = ann;
for (auto const& id_var : ids_vec)
{
if (auto const val = id_var.value_if<int64_t>())
{
ann.remove(static_cast<tr_tracker_id_t>(*val));
}
}
if (ann == baseline) // unchanged
{
return "error setting announce list";
}
tor->set_announce_list(std::move(ann));
return nullptr;
}
char const* torrentSet(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
char const* errmsg = nullptr;
for (auto* tor : getTorrents(session, args_in))
{
if (auto const val = args_in.value_if<int64_t>(TR_KEY_bandwidthPriority))
{
if (auto const priority = static_cast<tr_priority_t>(*val); tr_isPriority(priority))
{
tr_torrentSetPriority(tor, priority);
}
}
if (auto const val = args_in.value_if<std::string_view>(TR_KEY_group))
{
tor->set_bandwidth_group(*val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_labels); val != nullptr && errmsg == nullptr)
{
errmsg = set_labels(tor, *val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_files_unwanted); val != nullptr && errmsg == nullptr)
{
errmsg = set_file_dls(tor, false, *val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_files_wanted); val != nullptr && errmsg == nullptr)
{
errmsg = set_file_dls(tor, true, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_peer_limit))
{
tr_torrentSetPeerLimit(tor, *val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_priority_high); val != nullptr && errmsg == nullptr)
{
errmsg = set_file_priorities(tor, TR_PRI_HIGH, *val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_priority_low); val != nullptr && errmsg == nullptr)
{
errmsg = set_file_priorities(tor, TR_PRI_LOW, *val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_priority_normal); val != nullptr && errmsg == nullptr)
{
errmsg = set_file_priorities(tor, TR_PRI_NORMAL, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_downloadLimit))
{
tr_torrentSetSpeedLimit_KBps(tor, TR_DOWN, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_sequentialDownload))
{
tor->set_sequential_download(*val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_downloadLimited))
{
tor->use_speed_limit(TR_DOWN, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_honorsSessionLimits))
{
tr_torrentUseSessionLimits(tor, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_uploadLimit))
{
tr_torrentSetSpeedLimit_KBps(tor, TR_UP, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_uploadLimited))
{
tor->use_speed_limit(TR_UP, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_seedIdleLimit))
{
tor->set_idle_limit_minutes(static_cast<uint16_t>(*val));
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_seedIdleMode))
{
tor->set_idle_limit_mode(static_cast<tr_idlelimit>(*val));
}
if (auto const val = args_in.value_if<double>(TR_KEY_seedRatioLimit))
{
tor->set_seed_ratio(*val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_seedRatioMode))
{
tor->set_seed_ratio_mode(static_cast<tr_ratiolimit>(*val));
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_queuePosition))
{
tr_torrentSetQueuePosition(tor, static_cast<size_t>(*val));
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_trackerAdd))
{
errmsg = add_tracker_urls(tor, *val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_trackerRemove))
{
errmsg = remove_trackers(tor, *val);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_trackerReplace))
{
errmsg = replace_trackers(tor, *val);
}
if (auto const val = args_in.value_if<std::string_view>(TR_KEY_trackerList))
{
if (!tor->set_announce_list(*val))
{
errmsg = "Invalid tracker list";
}
}
session->rpcNotify(TR_RPC_TORRENT_CHANGED, tor);
}
return errmsg;
}
char const* torrentSetLocation(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const location = args_in.value_if<std::string_view>(TR_KEY_location);
if (!location)
{
return "no location";
}
if (tr_sys_path_is_relative(*location))
{
return "new location path is not absolute";
}
auto const move_flag = args_in.value_if<bool>(TR_KEY_move).value_or(false);
for (auto* tor : getTorrents(session, args_in))
{
tor->set_location(*location, move_flag, nullptr);
session->rpcNotify(TR_RPC_TORRENT_MOVED, tor);
}
return nullptr;
}
// ---
void torrentRenamePathDone(tr_torrent* tor, char const* oldpath, char const* newname, int error, void* user_data)
{
auto* const data = static_cast<struct tr_rpc_idle_data*>(user_data);
data->args_out.try_emplace(TR_KEY_id, tor->id());
data->args_out.try_emplace(TR_KEY_path, oldpath);
data->args_out.try_emplace(TR_KEY_name, newname);
tr_idle_function_done(data, error != 0 ? tr_strerror(error) : SuccessResult);
}
char const* torrentRenamePath(tr_session* session, tr_variant::Map const& args_in, struct tr_rpc_idle_data* idle_data)
{
auto const torrents = getTorrents(session, args_in);
if (std::size(torrents) != 1U)
{
return "torrent-rename-path requires 1 torrent";
}
auto const oldpath = args_in.value_if<std::string_view>(TR_KEY_path).value_or(""sv);
auto const newname = args_in.value_if<std::string_view>(TR_KEY_name).value_or(""sv);
torrents[0]->rename_path(oldpath, newname, torrentRenamePathDone, idle_data);
return nullptr; // no error
}
// ---
void onPortTested(tr_web::FetchResponse const& web_response)
{
auto const& [status, body, primary_ip, did_connect, did_timeout, user_data] = web_response;
auto* data = static_cast<tr_rpc_idle_data*>(user_data);
if (auto const addr = tr_address::from_string(primary_ip);
data->args_out.find_if<std::string_view>(TR_KEY_ipProtocol) == nullptr && addr && addr->is_valid())
{
data->args_out.try_emplace(TR_KEY_ipProtocol, addr->is_ipv4() ? "ipv4"sv : "ipv6"sv);
}
if (status != 200)
{
tr_idle_function_done(
data,
fmt::format(
_("Couldn't test port: {error} ({error_code})"),
fmt::arg("error", tr_webGetResponseStr(status)),
fmt::arg("error_code", status)));
return;
}
data->args_out.try_emplace(TR_KEY_port_is_open, tr_strv_starts_with(body, '1'));
tr_idle_function_done(data, SuccessResult);
}
char const* portTest(tr_session* session, tr_variant::Map const& args_in, struct tr_rpc_idle_data* idle_data)
{
static auto constexpr TimeoutSecs = 20s;
auto const port = session->advertisedPeerPort();
auto const url = fmt::format("https://portcheck.transmissionbt.com/{:d}", port.host());
auto options = tr_web::FetchOptions{ url, onPortTested, idle_data };
options.timeout_secs = TimeoutSecs;
if (auto const val = args_in.value_if<std::string_view>(TR_KEY_ipProtocol))
{
if (*val == "ipv4"sv)
{
options.ip_proto = tr_web::FetchOptions::IPProtocol::V4;
idle_data->args_out.try_emplace(TR_KEY_ipProtocol, "ipv4"sv);
}
else if (*val == "ipv6"sv)
{
options.ip_proto = tr_web::FetchOptions::IPProtocol::V6;
idle_data->args_out.try_emplace(TR_KEY_ipProtocol, "ipv6"sv);
}
else
{
return "invalid ip protocol string";
}
}
session->fetch(std::move(options));
return nullptr;
}
// ---
void onBlocklistFetched(tr_web::FetchResponse const& web_response)
{
auto const& [status, body, primary_ip, did_connect, did_timeout, user_data] = web_response;
auto* data = static_cast<struct tr_rpc_idle_data*>(user_data);
auto* const session = data->session;
if (status != 200)
{
// we failed to download the blocklist...
tr_idle_function_done(
data,
fmt::format(
_("Couldn't fetch blocklist: {error} ({error_code})"),
fmt::arg("error", tr_webGetResponseStr(status)),
fmt::arg("error_code", status)));
return;
}
// see if we need to decompress the content
auto content = std::vector<char>{};
content.resize(1024 * 128);
for (;;)
{
auto decompressor = std::unique_ptr<libdeflate_decompressor, void (*)(libdeflate_decompressor*)>{
libdeflate_alloc_decompressor(),
libdeflate_free_decompressor
};
auto actual_size = size_t{};
auto const decompress_result = libdeflate_gzip_decompress(
decompressor.get(),
std::data(body),
std::size(body),
std::data(content),
std::size(content),
&actual_size);
if (decompress_result == LIBDEFLATE_INSUFFICIENT_SPACE)
{
// need a bigger buffer
content.resize(content.size() * 2);
continue;
}
if (decompress_result == LIBDEFLATE_BAD_DATA)
{
// couldn't decompress it; maybe we downloaded an uncompressed file
content.assign(std::begin(body), std::end(body));
}
break;
}
// tr_blocklistSetContent needs a source file,
// so save content into a tmpfile
auto const filename = tr_pathbuf{ session->configDir(), "/blocklist.tmp"sv };
if (auto error = tr_error{}; !tr_file_save(filename, content, &error))
{
tr_idle_function_done(
data,
fmt::format(
_("Couldn't save '{path}': {error} ({error_code})"),
fmt::arg("path", filename),
fmt::arg("error", error.message()),
fmt::arg("error_code", error.code())));
return;
}
// feed it to the session and give the client a response
data->args_out.try_emplace(TR_KEY_blocklist_size, tr_blocklistSetContent(session, filename));
tr_sys_path_remove(filename);
tr_idle_function_done(data, SuccessResult);
}
char const* blocklistUpdate(tr_session* session, tr_variant::Map const& /*args_in*/, struct tr_rpc_idle_data* idle_data)
{
session->fetch({ session->blocklistUrl(), onBlocklistFetched, idle_data });
return nullptr;
}
// ---
void add_torrent_impl(struct tr_rpc_idle_data* data, tr_ctor& ctor)
{
tr_torrent* duplicate_of = nullptr;
tr_torrent* tor = tr_torrentNew(&ctor, &duplicate_of);
if (tor == nullptr && duplicate_of == nullptr)
{
tr_idle_function_done(data, "invalid or corrupt torrent file"sv);
return;
}
static auto constexpr Fields = std::array<tr_quark, 3>{ TR_KEY_id, TR_KEY_name, TR_KEY_hashString };
if (duplicate_of != nullptr)
{
data->args_out.try_emplace(
TR_KEY_torrent_duplicate,
make_torrent_info(duplicate_of, TrFormat::Object, std::data(Fields), std::size(Fields)));
tr_idle_function_done(data, SuccessResult);
return;
}
data->session->rpcNotify(TR_RPC_TORRENT_ADDED, tor);
data->args_out.try_emplace(
TR_KEY_torrent_added,
make_torrent_info(tor, TrFormat::Object, std::data(Fields), std::size(Fields)));
tr_idle_function_done(data, SuccessResult);
}
struct add_torrent_idle_data
{
add_torrent_idle_data(tr_rpc_idle_data* data_in, tr_ctor&& ctor_in)
: data{ data_in }
, ctor{ std::move(ctor_in) }
{
}
tr_rpc_idle_data* data;
tr_ctor ctor;
};
void onMetadataFetched(tr_web::FetchResponse const& web_response)
{
auto const& [status, body, primary_ip, did_connect, did_timeout, user_data] = web_response;
auto* data = static_cast<struct add_torrent_idle_data*>(user_data);
tr_logAddTrace(fmt::format(
"torrentAdd: HTTP response code was {} ({}); response length was {} bytes",
status,
tr_webGetResponseStr(status),
std::size(body)));
if (status == 200 || status == 221) /* http or ftp success.. */
{
data->ctor.set_metainfo(body);
add_torrent_impl(data->data, data->ctor);
}
else
{
tr_idle_function_done(
data->data,
fmt::format(
_("Couldn't fetch torrent: {error} ({error_code})"),
fmt::arg("error", tr_webGetResponseStr(status)),
fmt::arg("error_code", status)));
}
delete data;
}
bool isCurlURL(std::string_view url)
{
auto constexpr Schemes = std::array<std::string_view, 4>{ "http"sv, "https"sv, "ftp"sv, "sftp"sv };
auto const parsed = tr_urlParse(url);
return parsed && std::find(std::begin(Schemes), std::end(Schemes), parsed->scheme) != std::end(Schemes);
}
[[nodiscard]] auto file_list_from_list(tr_variant::Vector const& idx_vec)
{
auto const n_files = std::size(idx_vec);
auto files = std::vector<tr_file_index_t>{};
files.reserve(n_files);
for (auto const& idx_var : idx_vec)
{
if (auto const val = idx_var.value_if<int64_t>())
{
files.emplace_back(static_cast<tr_file_index_t>(*val));
}
}
return files;
}
char const* torrentAdd(tr_session* session, tr_variant::Map const& args_in, tr_rpc_idle_data* idle_data)
{
TR_ASSERT(idle_data != nullptr);
auto const filename = args_in.value_if<std::string_view>(TR_KEY_filename).value_or(""sv);
auto const metainfo_base64 = args_in.value_if<std::string_view>(TR_KEY_metainfo).value_or(""sv);
if (std::empty(filename) && std::empty(metainfo_base64))
{
return "no filename or metainfo specified";
}
auto const download_dir = args_in.value_if<std::string_view>(TR_KEY_download_dir);
if (download_dir && tr_sys_path_is_relative(*download_dir))
{
return "download directory path is not absolute";
}
auto ctor = tr_ctor{ session };
// set the optional arguments
auto const cookies = args_in.value_if<std::string_view>(TR_KEY_cookies).value_or(""sv);
if (download_dir && !std::empty(*download_dir))
{
ctor.set_download_dir(TR_FORCE, *download_dir);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_paused))
{
ctor.set_paused(TR_FORCE, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_peer_limit))
{
ctor.set_peer_limit(TR_FORCE, static_cast<uint16_t>(*val));
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_bandwidthPriority))
{
ctor.set_bandwidth_priority(static_cast<tr_priority_t>(*val));
}
if (auto const val = args_in.find_if<tr_variant::Vector>(TR_KEY_files_unwanted))
{
auto const files = file_list_from_list(*val);
ctor.set_files_wanted(std::data(files), std::size(files), false);
}
if (auto const val = args_in.find_if<tr_variant::Vector>(TR_KEY_files_wanted))
{
auto const files = file_list_from_list(*val);
ctor.set_files_wanted(std::data(files), std::size(files), true);
}
if (auto const val = args_in.find_if<tr_variant::Vector>(TR_KEY_priority_low))
{
auto const files = file_list_from_list(*val);
ctor.set_file_priorities(std::data(files), std::size(files), TR_PRI_LOW);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_priority_normal))
{
auto const files = file_list_from_list(*val);
ctor.set_file_priorities(std::data(files), std::size(files), TR_PRI_NORMAL);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_priority_high))
{
auto const files = file_list_from_list(*val);
ctor.set_file_priorities(std::data(files), std::size(files), TR_PRI_HIGH);
}
if (auto const* val = args_in.find_if<tr_variant::Vector>(TR_KEY_labels))
{
auto [labels, errmsg] = make_labels(*val);
if (errmsg != nullptr)
{
return errmsg;
}
ctor.set_labels(std::move(labels));
}
tr_logAddTrace(fmt::format("torrentAdd: filename is '{}'", filename));
if (isCurlURL(filename))
{
auto* const d = new add_torrent_idle_data{ idle_data, std::move(ctor) };
auto options = tr_web::FetchOptions{ filename, onMetadataFetched, d };
options.cookies = cookies;
session->fetch(std::move(options));
}
else
{
auto ok = false;
if (std::empty(filename))
{
ok = ctor.set_metainfo(tr_base64_decode(metainfo_base64));
}
else if (tr_sys_path_exists(tr_pathbuf{ filename }))
{
ok = ctor.set_metainfo_from_file(filename);
}
else
{
ok = ctor.set_metainfo_from_magnet_link(filename);
}
if (!ok)
{
return "unrecognized info";
}
add_torrent_impl(idle_data, ctor);
}
return nullptr;
}
// ---
void add_strings_from_var(std::set<std::string_view>& strings, tr_variant const& var)
{
if (auto const val = var.value_if<std::string_view>())
{
strings.insert(*val);
return;
}
if (auto const* val = var.get_if<tr_variant::Vector>(); val != nullptr)
{
for (auto const& vecvar : *val)
{
add_strings_from_var(strings, vecvar);
}
}
}
[[nodiscard]] char const* groupGet(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& args_out)
{
auto names = std::set<std::string_view>{};
if (auto const iter = args_in.find(TR_KEY_name); iter != std::end(args_in))
{
add_strings_from_var(names, iter->second);
}
auto groups_vec = tr_variant::Vector{};
for (auto const& [name, group] : session->bandwidthGroups())
{
if (names.empty() || names.count(name.sv()) > 0U)
{
auto const limits = group->get_limits();
auto group_map = tr_variant::Map{ 6U };
group_map.try_emplace(TR_KEY_honorsSessionLimits, group->are_parent_limits_honored(TR_UP));
group_map.try_emplace(TR_KEY_name, name.sv());
group_map.try_emplace(TR_KEY_speed_limit_down, limits.down_limit.count(Speed::Units::KByps));
group_map.try_emplace(TR_KEY_speed_limit_down_enabled, limits.down_limited);
group_map.try_emplace(TR_KEY_speed_limit_up, limits.up_limit.count(Speed::Units::KByps));
group_map.try_emplace(TR_KEY_speed_limit_up_enabled, limits.up_limited);
groups_vec.emplace_back(std::move(group_map));
}
}
args_out.try_emplace(TR_KEY_group, std::move(groups_vec));
return nullptr;
}
char const* groupSet(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const name = tr_strv_strip(args_in.value_if<std::string_view>(TR_KEY_name).value_or(""sv));
if (std::empty(name))
{
return "No group name given";
}
auto& group = session->getBandwidthGroup(name);
auto limits = group.get_limits();
if (auto const val = args_in.value_if<bool>(TR_KEY_speed_limit_down_enabled))
{
limits.down_limited = *val;
}
if (auto const val = args_in.value_if<bool>(TR_KEY_speed_limit_up_enabled))
{
limits.up_limited = *val;
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_speed_limit_down))
{
limits.down_limit = Speed{ *val, Speed::Units::KByps };
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_speed_limit_up))
{
limits.up_limit = Speed{ *val, Speed::Units::KByps };
}
group.set_limits(limits);
if (auto const val = args_in.value_if<bool>(TR_KEY_honorsSessionLimits))
{
group.honor_parent_limits(TR_UP, *val);
group.honor_parent_limits(TR_DOWN, *val);
}
return nullptr;
}
// ---
char const* sessionSet(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& /*args_out*/)
{
auto const download_dir = args_in.value_if<std::string_view>(TR_KEY_download_dir);
if (download_dir && tr_sys_path_is_relative(*download_dir))
{
return "download directory path is not absolute";
}
auto const incomplete_dir = args_in.value_if<std::string_view>(TR_KEY_incomplete_dir);
if (incomplete_dir && tr_sys_path_is_relative(*incomplete_dir))
{
return "incomplete torrents directory path is not absolute";
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_cache_size_mb))
{
tr_sessionSetCacheLimit_MB(session, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_alt_speed_up))
{
tr_sessionSetAltSpeed_KBps(session, TR_UP, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_alt_speed_down))
{
tr_sessionSetAltSpeed_KBps(session, TR_DOWN, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_alt_speed_enabled))
{
tr_sessionUseAltSpeed(session, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_alt_speed_time_begin))
{
tr_sessionSetAltSpeedBegin(session, static_cast<size_t>(*val));
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_alt_speed_time_end))
{
tr_sessionSetAltSpeedEnd(session, static_cast<size_t>(*val));
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_alt_speed_time_day))
{
tr_sessionSetAltSpeedDay(session, static_cast<tr_sched_day>(*val));
}
if (auto const val = args_in.value_if<bool>(TR_KEY_alt_speed_time_enabled))
{
tr_sessionUseAltSpeedTime(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_blocklist_enabled))
{
session->set_blocklist_enabled(*val);
}
if (auto const val = args_in.value_if<std::string_view>(TR_KEY_blocklist_url))
{
session->setBlocklistUrl(*val);
}
if (download_dir && !std::empty(*download_dir))
{
session->setDownloadDir(*download_dir);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_queue_stalled_minutes))
{
tr_sessionSetQueueStalledMinutes(session, static_cast<int>(*val));
}
if (auto const val = args_in.value_if<bool>(TR_KEY_queue_stalled_enabled))
{
tr_sessionSetQueueStalledEnabled(session, *val);
}
if (auto const val = args_in.value_if<std::string_view>(TR_KEY_default_trackers))
{
session->setDefaultTrackers(*val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_download_queue_size))
{
tr_sessionSetQueueSize(session, TR_DOWN, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_download_queue_enabled))
{
tr_sessionSetQueueEnabled(session, TR_DOWN, *val);
}
if (incomplete_dir && !std::empty(*incomplete_dir))
{
session->setIncompleteDir(*incomplete_dir);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_incomplete_dir_enabled))
{
session->useIncompleteDir(*val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_peer_limit_global))
{
tr_sessionSetPeerLimit(session, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_peer_limit_per_torrent))
{
tr_sessionSetPeerLimitPerTorrent(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_pex_enabled))
{
tr_sessionSetPexEnabled(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_dht_enabled))
{
tr_sessionSetDHTEnabled(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_utp_enabled))
{
tr_sessionSetUTPEnabled(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_lpd_enabled))
{
tr_sessionSetLPDEnabled(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_peer_port_random_on_start))
{
tr_sessionSetPeerPortRandomOnStart(session, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_peer_port))
{
tr_sessionSetPeerPort(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_port_forwarding_enabled))
{
tr_sessionSetPortForwardingEnabled(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_rename_partial_files))
{
tr_sessionSetIncompleteFileNamingEnabled(session, *val);
}
if (auto const val = args_in.value_if<double>(TR_KEY_seedRatioLimit))
{
tr_sessionSetRatioLimit(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_seedRatioLimited))
{
tr_sessionSetRatioLimited(session, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_idle_seeding_limit))
{
tr_sessionSetIdleLimit(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_idle_seeding_limit_enabled))
{
tr_sessionSetIdleLimited(session, *val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_start_added_torrents))
{
tr_sessionSetPaused(session, !*val);
}
if (auto const val = args_in.value_if<bool>(TR_KEY_seed_queue_enabled))
{
tr_sessionSetQueueEnabled(session, TR_UP, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_seed_queue_size))
{
tr_sessionSetQueueSize(session, TR_UP, *val);
}
for (auto const& [enabled_key, script_key, script] : tr_session::Scripts)
{
if (auto const val = args_in.value_if<bool>(enabled_key))
{
session->useScript(script, *val);
}
if (auto const val = args_in.value_if<std::string_view>(script_key))
{
session->setScript(script, *val);
}
}
if (auto const val = args_in.value_if<bool>(TR_KEY_trash_original_torrent_files))
{
tr_sessionSetDeleteSource(session, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_speed_limit_down))
{
session->set_speed_limit(TR_DOWN, Speed{ *val, Speed::Units::KByps });
}
if (auto const val = args_in.value_if<bool>(TR_KEY_speed_limit_down_enabled))
{
tr_sessionLimitSpeed(session, TR_DOWN, *val);
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_speed_limit_up))
{
session->set_speed_limit(TR_UP, Speed{ *val, Speed::Units::KByps });
}
if (auto const val = args_in.value_if<bool>(TR_KEY_speed_limit_up_enabled))
{
tr_sessionLimitSpeed(session, TR_UP, *val);
}
if (auto const val = args_in.value_if<std::string_view>(TR_KEY_encryption))
{
if (*val == "required"sv)
{
tr_sessionSetEncryption(session, TR_ENCRYPTION_REQUIRED);
}
else if (*val == "tolerated"sv)
{
tr_sessionSetEncryption(session, TR_CLEAR_PREFERRED);
}
else
{
tr_sessionSetEncryption(session, TR_ENCRYPTION_PREFERRED);
}
}
if (auto const val = args_in.value_if<int64_t>(TR_KEY_anti_brute_force_threshold))
{
tr_sessionSetAntiBruteForceThreshold(session, static_cast<int>(*val));
}
if (auto const val = args_in.value_if<bool>(TR_KEY_anti_brute_force_enabled))
{
tr_sessionSetAntiBruteForceEnabled(session, *val);
}
session->rpcNotify(TR_RPC_SESSION_CHANGED, nullptr);
return nullptr;
}
char const* sessionStats(tr_session* session, tr_variant::Map const& /*args_in*/, tr_variant::Map& args_out)
{
auto const make_stats_map = [](auto const& stats)
{
auto stats_map = tr_variant::Map{ 5U };
stats_map.try_emplace(TR_KEY_downloadedBytes, stats.downloadedBytes);
stats_map.try_emplace(TR_KEY_filesAdded, stats.filesAdded);
stats_map.try_emplace(TR_KEY_secondsActive, stats.secondsActive);
stats_map.try_emplace(TR_KEY_sessionCount, stats.sessionCount);
stats_map.try_emplace(TR_KEY_uploadedBytes, stats.uploadedBytes);
return stats_map;
};
auto const& torrents = session->torrents();
auto const total = std::size(torrents);
auto const n_running = std::count_if(
std::begin(torrents),
std::end(torrents),
[](auto const* tor) { return tor->is_running(); });
args_out.reserve(std::size(args_out) + 7U);
args_out.try_emplace(TR_KEY_activeTorrentCount, n_running);
args_out.try_emplace(TR_KEY_cumulative_stats, make_stats_map(session->stats().cumulative()));
args_out.try_emplace(TR_KEY_current_stats, make_stats_map(session->stats().current()));
args_out.try_emplace(TR_KEY_downloadSpeed, session->piece_speed(TR_DOWN).base_quantity());
args_out.try_emplace(TR_KEY_pausedTorrentCount, total - n_running);
args_out.try_emplace(TR_KEY_torrentCount, total);
args_out.try_emplace(TR_KEY_uploadSpeed, session->piece_speed(TR_UP).base_quantity());
return nullptr;
}
[[nodiscard]] constexpr std::string_view getEncryptionModeString(tr_encryption_mode mode)
{
switch (mode)
{
case TR_CLEAR_PREFERRED:
return "tolerated"sv;
case TR_ENCRYPTION_REQUIRED:
return "required"sv;
default:
return "preferred"sv;
}
}
[[nodiscard]] auto values_get_units()
{
using namespace libtransmission::Values;
auto const make_units_vec = [](auto const& units)
{
auto units_vec = tr_variant::Vector{};
for (size_t i = 0;; ++i)
{
auto const display_name = units.display_name(i);
if (std::empty(display_name))
{
break;
}
units_vec.emplace_back(display_name);
}
return units_vec;
};
auto units_map = tr_variant::Map{ 6U };
units_map.try_emplace(TR_KEY_memory_bytes, Memory::units().base());
units_map.try_emplace(TR_KEY_memory_units, make_units_vec(Memory::units()));
units_map.try_emplace(TR_KEY_size_bytes, Storage::units().base());
units_map.try_emplace(TR_KEY_size_units, make_units_vec(Storage::units()));
units_map.try_emplace(TR_KEY_speed_bytes, Speed::units().base());
units_map.try_emplace(TR_KEY_speed_units, make_units_vec(Speed::units()));
return tr_variant{ std::move(units_map) };
}
[[nodiscard]] tr_variant make_session_field(tr_session const& session, tr_quark const key)
{
// clang-format off
switch (key)
{
case TR_KEY_alt_speed_down: return tr_sessionGetAltSpeed_KBps(&session, TR_DOWN);
case TR_KEY_alt_speed_enabled: return tr_sessionUsesAltSpeed(&session);
case TR_KEY_alt_speed_time_begin: return tr_sessionGetAltSpeedBegin(&session);
case TR_KEY_alt_speed_time_day: return tr_sessionGetAltSpeedDay(&session);
case TR_KEY_alt_speed_time_enabled: return tr_sessionUsesAltSpeedTime(&session);
case TR_KEY_alt_speed_time_end: return tr_sessionGetAltSpeedEnd(&session);
case TR_KEY_alt_speed_up: return tr_sessionGetAltSpeed_KBps(&session, TR_UP);
case TR_KEY_anti_brute_force_enabled: return tr_sessionGetAntiBruteForceEnabled(&session);
case TR_KEY_anti_brute_force_threshold: return tr_sessionGetAntiBruteForceThreshold(&session);
case TR_KEY_blocklist_enabled: return session.blocklist_enabled();
case TR_KEY_blocklist_size: return tr_blocklistGetRuleCount(&session);
case TR_KEY_blocklist_url: return session.blocklistUrl();
case TR_KEY_cache_size_mb: return tr_sessionGetCacheLimit_MB(&session);
case TR_KEY_config_dir: return session.configDir();
case TR_KEY_default_trackers: return session.defaultTrackersStr();
case TR_KEY_dht_enabled: return session.allowsDHT();
case TR_KEY_download_dir: return session.downloadDir();
case TR_KEY_download_dir_free_space: return tr_sys_path_get_capacity(session.downloadDir()).value_or(tr_sys_path_capacity{}).free;
case TR_KEY_download_queue_enabled: return session.queueEnabled(TR_DOWN);
case TR_KEY_download_queue_size: return session.queueSize(TR_DOWN);
case TR_KEY_encryption: return getEncryptionModeString(tr_sessionGetEncryption(&session));
case TR_KEY_idle_seeding_limit: return session.idleLimitMinutes();
case TR_KEY_idle_seeding_limit_enabled: return session.isIdleLimited();
case TR_KEY_incomplete_dir: return session.incompleteDir();
case TR_KEY_incomplete_dir_enabled: return session.useIncompleteDir();
case TR_KEY_lpd_enabled: return session.allowsLPD();
case TR_KEY_peer_limit_global: return session.peerLimit();
case TR_KEY_peer_limit_per_torrent: return session.peerLimitPerTorrent();
case TR_KEY_peer_port: return session.advertisedPeerPort().host();
case TR_KEY_peer_port_random_on_start: return session.isPortRandom();
case TR_KEY_pex_enabled: return session.allows_pex();
case TR_KEY_port_forwarding_enabled: return tr_sessionIsPortForwardingEnabled(&session);
case TR_KEY_queue_stalled_enabled: return session.queueStalledEnabled();
case TR_KEY_queue_stalled_minutes: return session.queueStalledMinutes();
case TR_KEY_rename_partial_files: return session.isIncompleteFileNamingEnabled();
case TR_KEY_rpc_version: return RpcVersion;
case TR_KEY_rpc_version_minimum: return RpcVersionMin;
case TR_KEY_rpc_version_semver: return RpcVersionSemver;
case TR_KEY_script_torrent_added_enabled: return session.useScript(TR_SCRIPT_ON_TORRENT_ADDED);
case TR_KEY_script_torrent_added_filename: return session.script(TR_SCRIPT_ON_TORRENT_ADDED);
case TR_KEY_script_torrent_done_enabled: return session.useScript(TR_SCRIPT_ON_TORRENT_DONE);
case TR_KEY_script_torrent_done_filename: return session.script(TR_SCRIPT_ON_TORRENT_DONE);
case TR_KEY_script_torrent_done_seeding_enabled: return session.useScript(TR_SCRIPT_ON_TORRENT_DONE_SEEDING);
case TR_KEY_script_torrent_done_seeding_filename: return session.script(TR_SCRIPT_ON_TORRENT_DONE_SEEDING);
case TR_KEY_seedRatioLimit: return session.desiredRatio();
case TR_KEY_seedRatioLimited: return session.isRatioLimited();
case TR_KEY_seed_queue_enabled: return session.queueEnabled(TR_UP);
case TR_KEY_seed_queue_size: return session.queueSize(TR_UP);
case TR_KEY_session_id: return session.sessionId();
case TR_KEY_speed_limit_down: return session.speed_limit(TR_DOWN).count(Speed::Units::KByps);
case TR_KEY_speed_limit_down_enabled: return session.is_speed_limited(TR_DOWN);
case TR_KEY_speed_limit_up: return session.speed_limit(TR_UP).count(Speed::Units::KByps);
case TR_KEY_speed_limit_up_enabled: return session.is_speed_limited(TR_UP);
case TR_KEY_start_added_torrents: return !session.shouldPauseAddedTorrents();
case TR_KEY_tcp_enabled: return session.allowsTCP();
case TR_KEY_trash_original_torrent_files: return session.shouldDeleteSource();
case TR_KEY_units: return values_get_units();
case TR_KEY_utp_enabled: return session.allowsUTP();
case TR_KEY_version: return LONG_VERSION_STRING;
default: return tr_variant{};
}
// clang-format on
}
namespace session_get_helpers
{
[[nodiscard]] auto get_session_fields(tr_variant::Vector const* fields_vec)
{
auto fields = std::set<tr_quark>{};
if (fields_vec != nullptr)
{
for (auto const& field_var : *fields_vec)
{
if (auto const field_name = field_var.value_if<std::string_view>())
{
if (auto const field_id = tr_quark_lookup(*field_name); field_id)
{
fields.insert(*field_id);
}
}
}
}
if (std::empty(fields)) // no fields specified; get them all
{
for (tr_quark field_id = TR_KEY_NONE + 1; field_id < TR_N_KEYS; ++field_id)
{
fields.insert(field_id);
}
}
return fields;
}
} // namespace session_get_helpers
char const* sessionGet(tr_session* session, tr_variant::Map const& args_in, tr_variant::Map& args_out)
{
using namespace session_get_helpers;
for (auto const key : get_session_fields(args_in.find_if<tr_variant::Vector>(TR_KEY_fields)))
{
if (auto var = make_session_field(*session, key); var.has_value())
{
args_out.try_emplace(key, std::move(var));
}
}
return nullptr;
}
char const* freeSpace(tr_session* /*session*/, tr_variant::Map const& args_in, tr_variant::Map& args_out)
{
auto const path = args_in.value_if<std::string_view>(TR_KEY_path);
if (!path)
{
return "directory path argument is missing";
}
if (tr_sys_path_is_relative(*path))
{
return "directory path is not absolute";
}
// get the free space
auto const old_errno = errno;
auto error = tr_error{};
auto const capacity = tr_sys_path_get_capacity(*path, &error);
char const* const err = error ? tr_strerror(error.code()) : nullptr;
errno = old_errno;
// response
args_out.try_emplace(TR_KEY_path, *path);
args_out.try_emplace(TR_KEY_size_bytes, capacity ? capacity->free : -1);
args_out.try_emplace(TR_KEY_total_size, capacity ? capacity->total : -1);
return err;
}
// ---
char const* sessionClose(tr_session* session, tr_variant::Map const& /*args_in*/, tr_variant::Map& /*args_out*/)
{
session->rpcNotify(TR_RPC_SESSION_CLOSE, nullptr);
return nullptr;
}
// ---
using SyncHandler = char const* (*)(tr_session*, tr_variant::Map const&, tr_variant::Map&);
auto constexpr SyncHandlers = std::array<std::pair<std::string_view, SyncHandler>, 20U>{ {
{ "free-space"sv, freeSpace },
{ "group-get"sv, groupGet },
{ "group-set"sv, groupSet },
{ "queue-move-bottom"sv, queueMoveBottom },
{ "queue-move-down"sv, queueMoveDown },
{ "queue-move-top"sv, queueMoveTop },
{ "queue-move-up"sv, queueMoveUp },
{ "session-close"sv, sessionClose },
{ "session-get"sv, sessionGet },
{ "session-set"sv, sessionSet },
{ "session-stats"sv, sessionStats },
{ "torrent-get"sv, torrentGet },
{ "torrent-reannounce"sv, torrentReannounce },
{ "torrent-remove"sv, torrentRemove },
{ "torrent-set"sv, torrentSet },
{ "torrent-set-location"sv, torrentSetLocation },
{ "torrent-start"sv, torrentStart },
{ "torrent-start-now"sv, torrentStartNow },
{ "torrent-stop"sv, torrentStop },
{ "torrent-verify"sv, torrentVerify },
} };
using AsyncHandler = char const* (*)(tr_session*, tr_variant::Map const&, tr_rpc_idle_data*);
auto constexpr AsyncHandlers = std::array<std::pair<std::string_view, AsyncHandler>, 4U>{ {
{ "blocklist-update"sv, blocklistUpdate },
{ "port-test"sv, portTest },
{ "torrent-add"sv, torrentAdd },
{ "torrent-rename-path"sv, torrentRenamePath },
} };
void noop_response_callback(tr_session* /*session*/, tr_variant&& /*response*/)
{
}
} // namespace
void tr_rpc_request_exec(tr_session* session, tr_variant const& request, tr_rpc_response_func&& callback)
{
auto const lock = session->unique_lock();
auto const* const request_map = request.get_if<tr_variant::Map>();
if (!callback)
{
callback = noop_response_callback;
}
auto const empty_args = tr_variant::Map{};
auto const* args_in = &empty_args;
auto method_name = std::string_view{};
auto tag = std::optional<int64_t>{};
if (request_map != nullptr)
{
// find the args
if (auto const* val = request_map->find_if<tr_variant::Map>(TR_KEY_arguments))
{
args_in = val;
}
// find the requested method
if (auto const val = request_map->value_if<std::string_view>(TR_KEY_method))
{
method_name = *val;
}
tag = request_map->value_if<int64_t>(TR_KEY_tag);
}
auto const test = [method_name](auto const& handler)
{
return handler.first == method_name;
};
if (auto const end = std::end(AsyncHandlers), handler = std::find_if(std::begin(AsyncHandlers), end, test); handler != end)
{
auto* const data = new tr_rpc_idle_data{};
data->session = session;
data->tag = tag;
data->callback = std::move(callback);
if (char const* const errmsg = (*handler->second)(session, *args_in, data); errmsg != nullptr)
{
// Async operation failed prematurely? Invoke callback to ensure client gets a reply
tr_idle_function_done(data, errmsg);
}
return;
}
auto response = tr_variant::Map{ 3U };
if (tag.has_value())
{
response.try_emplace(TR_KEY_tag, *tag);
}
if (auto const end = std::end(SyncHandlers), handler = std::find_if(std::begin(SyncHandlers), end, test); handler != end)
{
auto args_out = tr_variant::Map{};
char const* const result = (handler->second)(session, *args_in, args_out);
response.try_emplace(TR_KEY_arguments, std::move(args_out));
response.try_emplace(TR_KEY_result, result != nullptr ? result : "success");
}
else
{
// couldn't find a handler
response.try_emplace(TR_KEY_arguments, 0);
response.try_emplace(TR_KEY_result, "no method name");
}
callback(session, tr_variant{ std::move(response) });
}
/**
* Munge the URI into a usable form.
*
* We have very loose typing on this to make the URIs as simple as possible:
* - anything not a 'tag' or 'method' is automatically in 'arguments'
* - values that are all-digits are numbers
* - values that are all-digits or commas are number lists
* - all other values are strings
*/
tr_variant tr_rpc_parse_list_str(std::string_view str)
{
auto const values = tr_num_parse_range(str);
auto const n_values = std::size(values);
if (n_values == 0)
{
return { str };
}
if (n_values == 1)
{
return { values[0] };
}
auto num_vec = tr_variant::Vector{};
num_vec.resize(n_values);
std::copy_n(std::cbegin(values), n_values, std::begin(num_vec));
return { std::move(num_vec) };
}
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