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transmission/libtransmission/rpcimpl.cc
Charles Kerr 0c582c6d7e
fix: race condition in RPC (#4725)
2023-02-06 10:42:37 -06:00

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// This file Copyright © 2008-2022 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 <ctime>
#include <iterator>
#include <memory>
#include <numeric>
#include <set>
#include <string_view>
#include <utility>
#include <vector>
#include <fmt/core.h>
#include <libdeflate.h>
#include "transmission.h"
#include "announcer.h"
#include "completion.h"
#include "crypto-utils.h"
#include "error.h"
#include "file.h"
#include "log.h"
#include "peer-mgr.h"
#include "quark.h"
#include "rpcimpl.h"
#include "session-id.h"
#include "session.h"
#include "torrent.h"
#include "tr-assert.h"
#include "tr-macros.h"
#include "tr-strbuf.h"
#include "utils.h"
#include "variant.h"
#include "version.h"
#include "web-utils.h"
#include "web.h"
using namespace std::literals;
namespace
{
auto constexpr RecentlyActiveSeconds = time_t{ 60 };
auto constexpr RpcVersion = int64_t{ 17 };
auto constexpr RpcVersionMin = int64_t{ 14 };
auto constexpr RpcVersionSemver = "5.3.0"sv;
enum class TrFormat
{
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
{
tr_variant response = {};
tr_session* session = nullptr;
tr_variant* args_out = nullptr;
tr_rpc_response_func callback = nullptr;
void* callback_user_data = nullptr;
};
auto constexpr SuccessResult = "success"sv;
void tr_idle_function_done(struct tr_rpc_idle_data* data, std::string_view result)
{
tr_variantDictAddStr(&data->response, TR_KEY_result, result);
(*data->callback)(data->session, &data->response, data->callback_user_data);
tr_variantClear(&data->response);
delete data;
}
// ---
auto getTorrents(tr_session* session, tr_variant* args)
{
auto torrents = std::vector<tr_torrent*>{};
auto id = int64_t{};
auto sv = std::string_view{};
if (tr_variant* ids = nullptr; tr_variantDictFindList(args, TR_KEY_ids, &ids))
{
size_t const n = tr_variantListSize(ids);
torrents.reserve(n);
for (size_t i = 0; i < n; ++i)
{
tr_variant const* const node = tr_variantListChild(ids, i);
tr_torrent* tor = nullptr;
if (tr_variantGetInt(node, &id))
{
tor = tr_torrentFindFromId(session, static_cast<tr_torrent_id_t>(id));
}
else if (tr_variantGetStrView(node, &sv))
{
tor = session->torrents().get(sv);
}
if (tor != nullptr)
{
torrents.push_back(tor);
}
}
}
else if (tr_variantDictFindInt(args, TR_KEY_ids, &id) || tr_variantDictFindInt(args, TR_KEY_id, &id))
{
if (auto* const tor = tr_torrentFindFromId(session, static_cast<tr_torrent_id_t>(id)); tor != nullptr)
{
torrents.push_back(tor);
}
}
else if (tr_variantDictFindStrView(args, TR_KEY_ids, &sv))
{
if (sv == "recently-active"sv)
{
time_t const cutoff = tr_time() - RecentlyActiveSeconds;
torrents.reserve(std::size(session->torrents()));
std::copy_if(
std::begin(session->torrents()),
std::end(session->torrents()),
std::back_inserter(torrents),
[&cutoff](auto const* tor) { return tor->anyDate >= cutoff; });
}
else
{
auto* const tor = session->torrents().get(sv);
if (tor != nullptr)
{
torrents.push_back(tor);
}
}
}
else // all of them
{
torrents.reserve(std::size(session->torrents()));
std::copy(std::begin(session->torrents()), std::end(session->torrents()), std::back_inserter(torrents));
}
return torrents;
}
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* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
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* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
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* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
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* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
auto const torrents = getTorrents(session, args_in);
tr_torrentsQueueMoveBottom(std::data(torrents), std::size(torrents));
notifyBatchQueueChange(session, torrents);
return nullptr;
}
struct CompareTorrentByQueuePosition
{
constexpr bool operator()(tr_torrent const* a, tr_torrent const* b) const
{
return a->queuePosition < b->queuePosition;
}
};
char const* torrentStart(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
auto torrents = getTorrents(session, args_in);
std::sort(std::begin(torrents), std::end(torrents), CompareTorrentByQueuePosition{});
for (auto* tor : torrents)
{
if (!tor->isRunning)
{
tr_torrentStart(tor);
session->rpcNotify(TR_RPC_TORRENT_STARTED, tor);
}
}
return nullptr;
}
char const* torrentStartNow(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
auto torrents = getTorrents(session, args_in);
std::sort(std::begin(torrents), std::end(torrents), CompareTorrentByQueuePosition{});
for (auto* tor : torrents)
{
if (!tor->isRunning)
{
tr_torrentStartNow(tor);
session->rpcNotify(TR_RPC_TORRENT_STARTED, tor);
}
}
return nullptr;
}
char const* torrentStop(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
for (auto* tor : getTorrents(session, args_in))
{
if (tor->isRunning || tor->isQueued() || tor->verifyState() != TR_VERIFY_NONE)
{
tor->isStopping = true;
session->rpcNotify(TR_RPC_TORRENT_STOPPED, tor);
}
}
return nullptr;
}
char const* torrentRemove(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
auto delete_flag = bool{ false };
(void)tr_variantDictFindBool(args_in, TR_KEY_delete_local_data, &delete_flag);
tr_rpc_callback_type 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* args_in,
tr_variant* /*args_out*/,
tr_rpc_idle_data* /*idle_data*/)
{
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* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
for (auto* tor : getTorrents(session, args_in))
{
tr_torrentVerify(tor);
session->rpcNotify(TR_RPC_TORRENT_CHANGED, tor);
}
return nullptr;
}
// ---
void addLabels(tr_torrent const* tor, tr_variant* list)
{
tr_variantInitList(list, std::size(tor->labels));
for (auto const& label : tor->labels)
{
tr_variantListAddQuark(list, label);
}
}
void addFileStats(tr_torrent const* tor, tr_variant* list)
{
for (tr_file_index_t i = 0, n = tor->fileCount(); i < n; ++i)
{
auto const file = tr_torrentFile(tor, i);
tr_variant* d = tr_variantListAddDict(list, 3);
tr_variantDictAddInt(d, TR_KEY_bytesCompleted, file.have);
tr_variantDictAddInt(d, TR_KEY_priority, file.priority);
tr_variantDictAddBool(d, TR_KEY_wanted, file.wanted);
}
}
void addFiles(tr_torrent const* tor, tr_variant* list)
{
for (tr_file_index_t i = 0, n = tor->fileCount(); i < n; ++i)
{
auto const file = tr_torrentFile(tor, i);
tr_variant* d = tr_variantListAddDict(list, 3);
tr_variantDictAddInt(d, TR_KEY_bytesCompleted, file.have);
tr_variantDictAddInt(d, TR_KEY_length, file.length);
tr_variantDictAddStr(d, TR_KEY_name, file.name);
}
}
void addWebseeds(tr_torrent const* tor, tr_variant* webseeds)
{
for (size_t i = 0, n = tor->webseedCount(); i < n; ++i)
{
tr_variantListAddStr(webseeds, tor->webseed(i));
}
}
void addTrackers(tr_torrent const* tor, tr_variant* trackers)
{
for (auto const& tracker : tor->announceList())
{
auto* const d = tr_variantListAddDict(trackers, 5);
tr_variantDictAddQuark(d, TR_KEY_announce, tracker.announce.quark());
tr_variantDictAddInt(d, TR_KEY_id, tracker.id);
tr_variantDictAddQuark(d, TR_KEY_scrape, tracker.scrape.quark());
tr_variantDictAddStrView(d, TR_KEY_sitename, tracker.sitename);
tr_variantDictAddInt(d, TR_KEY_tier, tracker.tier);
}
}
void addTrackerStats(tr_tracker_view const& tracker, tr_variant* list)
{
auto* const d = tr_variantListAddDict(list, 27);
tr_variantDictAddStr(d, TR_KEY_announce, tracker.announce);
tr_variantDictAddInt(d, TR_KEY_announceState, tracker.announceState);
tr_variantDictAddInt(d, TR_KEY_downloadCount, tracker.downloadCount);
tr_variantDictAddBool(d, TR_KEY_hasAnnounced, tracker.hasAnnounced);
tr_variantDictAddBool(d, TR_KEY_hasScraped, tracker.hasScraped);
tr_variantDictAddStr(d, TR_KEY_host, tracker.host);
tr_variantDictAddStr(d, TR_KEY_sitename, tracker.sitename);
tr_variantDictAddInt(d, TR_KEY_id, tracker.id);
tr_variantDictAddBool(d, TR_KEY_isBackup, tracker.isBackup);
tr_variantDictAddInt(d, TR_KEY_lastAnnouncePeerCount, tracker.lastAnnouncePeerCount);
tr_variantDictAddStr(d, TR_KEY_lastAnnounceResult, tracker.lastAnnounceResult);
tr_variantDictAddInt(d, TR_KEY_lastAnnounceStartTime, tracker.lastAnnounceStartTime);
tr_variantDictAddBool(d, TR_KEY_lastAnnounceSucceeded, tracker.lastAnnounceSucceeded);
tr_variantDictAddInt(d, TR_KEY_lastAnnounceTime, tracker.lastAnnounceTime);
tr_variantDictAddBool(d, TR_KEY_lastAnnounceTimedOut, tracker.lastAnnounceTimedOut);
tr_variantDictAddStr(d, TR_KEY_lastScrapeResult, tracker.lastScrapeResult);
tr_variantDictAddInt(d, TR_KEY_lastScrapeStartTime, tracker.lastScrapeStartTime);
tr_variantDictAddBool(d, TR_KEY_lastScrapeSucceeded, tracker.lastScrapeSucceeded);
tr_variantDictAddInt(d, TR_KEY_lastScrapeTime, tracker.lastScrapeTime);
tr_variantDictAddBool(d, TR_KEY_lastScrapeTimedOut, tracker.lastScrapeTimedOut);
tr_variantDictAddInt(d, TR_KEY_leecherCount, tracker.leecherCount);
tr_variantDictAddInt(d, TR_KEY_nextAnnounceTime, tracker.nextAnnounceTime);
tr_variantDictAddInt(d, TR_KEY_nextScrapeTime, tracker.nextScrapeTime);
tr_variantDictAddStr(d, TR_KEY_scrape, tracker.scrape);
tr_variantDictAddInt(d, TR_KEY_scrapeState, tracker.scrapeState);
tr_variantDictAddInt(d, TR_KEY_seederCount, tracker.seederCount);
tr_variantDictAddInt(d, TR_KEY_tier, tracker.tier);
}
void addPeers(tr_torrent const* tor, tr_variant* list)
{
auto peer_count = size_t{};
tr_peer_stat* peers = tr_torrentPeers(tor, &peer_count);
tr_variantInitList(list, peer_count);
for (size_t i = 0; i < peer_count; ++i)
{
tr_variant* d = tr_variantListAddDict(list, 16);
tr_peer_stat const* peer = peers + i;
tr_variantDictAddStr(d, TR_KEY_address, peer->addr);
tr_variantDictAddStr(d, TR_KEY_clientName, peer->client);
tr_variantDictAddBool(d, TR_KEY_clientIsChoked, peer->clientIsChoked);
tr_variantDictAddBool(d, TR_KEY_clientIsInterested, peer->clientIsInterested);
tr_variantDictAddStr(d, TR_KEY_flagStr, peer->flagStr);
tr_variantDictAddBool(d, TR_KEY_isDownloadingFrom, peer->isDownloadingFrom);
tr_variantDictAddBool(d, TR_KEY_isEncrypted, peer->isEncrypted);
tr_variantDictAddBool(d, TR_KEY_isIncoming, peer->isIncoming);
tr_variantDictAddBool(d, TR_KEY_isUploadingTo, peer->isUploadingTo);
tr_variantDictAddBool(d, TR_KEY_isUTP, peer->isUTP);
tr_variantDictAddBool(d, TR_KEY_peerIsChoked, peer->peerIsChoked);
tr_variantDictAddBool(d, TR_KEY_peerIsInterested, peer->peerIsInterested);
tr_variantDictAddInt(d, TR_KEY_port, peer->port);
tr_variantDictAddReal(d, TR_KEY_progress, peer->progress);
tr_variantDictAddInt(d, TR_KEY_rateToClient, tr_toSpeedBytes(peer->rateToClient_KBps));
tr_variantDictAddInt(d, TR_KEY_rateToPeer, tr_toSpeedBytes(peer->rateToPeer_KBps));
}
tr_torrentPeersFree(peers, peer_count);
}
[[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_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;
}
}
void initField(tr_torrent const* const tor, tr_stat const* const st, tr_variant* const initme, tr_quark key)
{
TR_ASSERT(isSupportedTorrentGetField(key));
switch (key)
{
case TR_KEY_activityDate:
tr_variantInitInt(initme, st->activityDate);
break;
case TR_KEY_addedDate:
tr_variantInitInt(initme, st->addedDate);
break;
case TR_KEY_availability:
tr_variantInitList(initme, tor->pieceCount());
for (tr_piece_index_t piece = 0, n = tor->pieceCount(); piece < n; ++piece)
{
tr_variantListAddInt(initme, tr_peerMgrPieceAvailability(tor, piece));
}
break;
case TR_KEY_bandwidthPriority:
tr_variantInitInt(initme, tor->getPriority());
break;
case TR_KEY_comment:
tr_variantInitStr(initme, tor->comment());
break;
case TR_KEY_corruptEver:
tr_variantInitInt(initme, st->corruptEver);
break;
case TR_KEY_creator:
tr_variantInitStrView(initme, tor->creator());
break;
case TR_KEY_dateCreated:
tr_variantInitInt(initme, tor->dateCreated());
break;
case TR_KEY_desiredAvailable:
tr_variantInitInt(initme, st->desiredAvailable);
break;
case TR_KEY_doneDate:
tr_variantInitInt(initme, st->doneDate);
break;
case TR_KEY_downloadDir:
tr_variantInitStrView(initme, tr_torrentGetDownloadDir(tor));
break;
case TR_KEY_downloadedEver:
tr_variantInitInt(initme, st->downloadedEver);
break;
case TR_KEY_downloadLimit:
tr_variantInitInt(initme, tr_torrentGetSpeedLimit_KBps(tor, TR_DOWN));
break;
case TR_KEY_downloadLimited:
tr_variantInitBool(initme, tor->usesSpeedLimit(TR_DOWN));
break;
case TR_KEY_error:
tr_variantInitInt(initme, st->error);
break;
case TR_KEY_errorString:
tr_variantInitStrView(initme, st->errorString);
break;
case TR_KEY_eta:
tr_variantInitInt(initme, st->eta);
break;
case TR_KEY_file_count:
tr_variantInitInt(initme, tor->fileCount());
break;
case TR_KEY_files:
tr_variantInitList(initme, tor->fileCount());
addFiles(tor, initme);
break;
case TR_KEY_fileStats:
tr_variantInitList(initme, tor->fileCount());
addFileStats(tor, initme);
break;
case TR_KEY_group:
tr_variantInitStrView(initme, tor->bandwidthGroup().sv());
break;
case TR_KEY_hashString:
tr_variantInitStrView(initme, tor->infoHashString());
break;
case TR_KEY_haveUnchecked:
tr_variantInitInt(initme, st->haveUnchecked);
break;
case TR_KEY_haveValid:
tr_variantInitInt(initme, st->haveValid);
break;
case TR_KEY_honorsSessionLimits:
tr_variantInitBool(initme, tor->usesSessionLimits());
break;
case TR_KEY_id:
tr_variantInitInt(initme, st->id);
break;
case TR_KEY_editDate:
tr_variantInitInt(initme, st->editDate);
break;
case TR_KEY_isFinished:
tr_variantInitBool(initme, st->finished);
break;
case TR_KEY_isPrivate:
tr_variantInitBool(initme, tor->isPrivate());
break;
case TR_KEY_isStalled:
tr_variantInitBool(initme, st->isStalled);
break;
case TR_KEY_labels:
addLabels(tor, initme);
break;
case TR_KEY_leftUntilDone:
tr_variantInitInt(initme, st->leftUntilDone);
break;
case TR_KEY_manualAnnounceTime:
tr_variantInitInt(initme, tr_announcerNextManualAnnounce(tor));
break;
case TR_KEY_maxConnectedPeers:
case TR_KEY_peer_limit:
tr_variantInitInt(initme, tor->peerLimit());
break;
case TR_KEY_magnetLink:
tr_variantInitStr(initme, tor->metainfo_.magnet());
break;
case TR_KEY_metadataPercentComplete:
tr_variantInitReal(initme, st->metadataPercentComplete);
break;
case TR_KEY_name:
tr_variantInitStrView(initme, tr_torrentName(tor));
break;
case TR_KEY_percentComplete:
tr_variantInitReal(initme, st->percentComplete);
break;
case TR_KEY_percentDone:
tr_variantInitReal(initme, st->percentDone);
break;
case TR_KEY_peers:
addPeers(tor, initme);
break;
case TR_KEY_peersConnected:
tr_variantInitInt(initme, st->peersConnected);
break;
case TR_KEY_peersFrom:
{
tr_variantInitDict(initme, 7);
auto const* f = st->peersFrom;
tr_variantDictAddInt(initme, TR_KEY_fromCache, f[TR_PEER_FROM_RESUME]);
tr_variantDictAddInt(initme, TR_KEY_fromDht, f[TR_PEER_FROM_DHT]);
tr_variantDictAddInt(initme, TR_KEY_fromIncoming, f[TR_PEER_FROM_INCOMING]);
tr_variantDictAddInt(initme, TR_KEY_fromLpd, f[TR_PEER_FROM_LPD]);
tr_variantDictAddInt(initme, TR_KEY_fromLtep, f[TR_PEER_FROM_LTEP]);
tr_variantDictAddInt(initme, TR_KEY_fromPex, f[TR_PEER_FROM_PEX]);
tr_variantDictAddInt(initme, TR_KEY_fromTracker, f[TR_PEER_FROM_TRACKER]);
break;
}
case TR_KEY_peersGettingFromUs:
tr_variantInitInt(initme, st->peersGettingFromUs);
break;
case TR_KEY_peersSendingToUs:
tr_variantInitInt(initme, st->peersSendingToUs);
break;
case TR_KEY_pieces:
if (tor->hasMetainfo())
{
auto const bytes = tor->createPieceBitfield();
auto const enc = tr_base64_encode({ reinterpret_cast<char const*>(std::data(bytes)), std::size(bytes) });
tr_variantInitStr(initme, enc);
}
else
{
tr_variantInitStrView(initme, ""sv);
}
break;
case TR_KEY_pieceCount:
tr_variantInitInt(initme, tor->pieceCount());
break;
case TR_KEY_pieceSize:
tr_variantInitInt(initme, tor->pieceSize());
break;
case TR_KEY_primary_mime_type:
tr_variantInitStrView(initme, tor->primaryMimeType());
break;
case TR_KEY_priorities:
{
auto const n = tor->fileCount();
tr_variantInitList(initme, n);
for (tr_file_index_t i = 0; i < n; ++i)
{
tr_variantListAddInt(initme, tr_torrentFile(tor, i).priority);
}
}
break;
case TR_KEY_queuePosition:
tr_variantInitInt(initme, st->queuePosition);
break;
case TR_KEY_etaIdle:
tr_variantInitInt(initme, st->etaIdle);
break;
case TR_KEY_rateDownload:
tr_variantInitInt(initme, tr_toSpeedBytes(st->pieceDownloadSpeed_KBps));
break;
case TR_KEY_rateUpload:
tr_variantInitInt(initme, tr_toSpeedBytes(st->pieceUploadSpeed_KBps));
break;
case TR_KEY_recheckProgress:
tr_variantInitReal(initme, st->recheckProgress);
break;
case TR_KEY_seedIdleLimit:
tr_variantInitInt(initme, tor->idleLimitMinutes());
break;
case TR_KEY_seedIdleMode:
tr_variantInitInt(initme, tor->idleLimitMode());
break;
case TR_KEY_seedRatioLimit:
tr_variantInitReal(initme, tr_torrentGetRatioLimit(tor));
break;
case TR_KEY_seedRatioMode:
tr_variantInitInt(initme, tr_torrentGetRatioMode(tor));
break;
case TR_KEY_sizeWhenDone:
tr_variantInitInt(initme, st->sizeWhenDone);
break;
case TR_KEY_source:
tr_variantInitStrView(initme, tor->source());
break;
case TR_KEY_startDate:
tr_variantInitInt(initme, st->startDate);
break;
case TR_KEY_status:
tr_variantInitInt(initme, st->activity);
break;
case TR_KEY_secondsDownloading:
tr_variantInitInt(initme, st->secondsDownloading);
break;
case TR_KEY_secondsSeeding:
tr_variantInitInt(initme, st->secondsSeeding);
break;
case TR_KEY_trackers:
tr_variantInitList(initme, tor->trackerCount());
addTrackers(tor, initme);
break;
case TR_KEY_trackerList:
tr_variantInitStr(initme, tor->trackerList());
break;
case TR_KEY_trackerStats:
{
auto const n = tr_torrentTrackerCount(tor);
tr_variantInitList(initme, n);
for (size_t i = 0; i < n; ++i)
{
auto const& tracker = tr_torrentTracker(tor, i);
addTrackerStats(tracker, initme);
}
break;
}
case TR_KEY_torrentFile:
tr_variantInitStr(initme, tor->torrentFile());
break;
case TR_KEY_totalSize:
tr_variantInitInt(initme, tor->totalSize());
break;
case TR_KEY_uploadedEver:
tr_variantInitInt(initme, st->uploadedEver);
break;
case TR_KEY_uploadLimit:
tr_variantInitInt(initme, tr_torrentGetSpeedLimit_KBps(tor, TR_UP));
break;
case TR_KEY_uploadLimited:
tr_variantInitBool(initme, tor->usesSpeedLimit(TR_UP));
break;
case TR_KEY_uploadRatio:
tr_variantInitReal(initme, st->ratio);
break;
case TR_KEY_wanted:
{
auto const n = tor->fileCount();
tr_variantInitList(initme, n);
for (tr_file_index_t i = 0; i < n; ++i)
{
tr_variantListAddBool(initme, tr_torrentFile(tor, i).wanted);
}
}
break;
case TR_KEY_webseeds:
tr_variantInitList(initme, tor->webseedCount());
addWebseeds(tor, initme);
break;
case TR_KEY_webseedsSendingToUs:
tr_variantInitInt(initme, st->webseedsSendingToUs);
break;
default:
break;
}
}
void addTorrentInfo(tr_torrent* tor, TrFormat format, tr_variant* entry, tr_quark const* fields, size_t field_count)
{
if (format == TrFormat::Table)
{
tr_variantInitList(entry, field_count);
}
else
{
tr_variantInitDict(entry, field_count);
}
if (field_count > 0)
{
tr_stat const* const st = tr_torrentStat(tor);
for (size_t i = 0; i < field_count; ++i)
{
tr_variant* child = format == TrFormat::Table ? tr_variantListAdd(entry) : tr_variantDictAdd(entry, fields[i]);
initField(tor, st, child, fields[i]);
}
}
}
char const* torrentGet(tr_session* session, tr_variant* args_in, tr_variant* args_out, tr_rpc_idle_data* /*idle_data*/)
{
auto const torrents = getTorrents(session, args_in);
tr_variant* const list = tr_variantDictAddList(args_out, TR_KEY_torrents, std::size(torrents) + 1);
auto sv = std::string_view{};
auto const format = tr_variantDictFindStrView(args_in, TR_KEY_format, &sv) && sv == "table"sv ? TrFormat::Table :
TrFormat::Object;
if (tr_variantDictFindStrView(args_in, TR_KEY_ids, &sv) && sv == "recently-active"sv)
{
auto const cutoff = tr_time() - RecentlyActiveSeconds;
auto const ids = session->torrents().removedSince(cutoff);
auto* const out = tr_variantDictAddList(args_out, TR_KEY_removed, std::size(ids));
for (auto const& id : ids)
{
tr_variantListAddInt(out, id);
}
}
tr_variant* fields = nullptr;
char const* errmsg = nullptr;
if (!tr_variantDictFindList(args_in, TR_KEY_fields, &fields))
{
errmsg = "no fields specified";
}
else
{
auto const n = tr_variantListSize(fields);
auto keys = std::vector<tr_quark>{};
keys.reserve(n);
for (size_t i = 0; i < n; ++i)
{
if (!tr_variantGetStrView(tr_variantListChild(fields, i), &sv))
{
continue;
}
if (auto const key = tr_quark_lookup(sv); key && isSupportedTorrentGetField(*key))
{
keys.emplace_back(*key);
}
}
if (format == TrFormat::Table)
{
/* first entry is an array of property names */
tr_variant* names = tr_variantListAddList(list, std::size(keys));
for (auto const& key : keys)
{
tr_variantListAddQuark(names, key);
}
}
for (auto* tor : torrents)
{
addTorrentInfo(tor, format, tr_variantListAdd(list), std::data(keys), std::size(keys));
}
}
return errmsg;
}
// ---
[[nodiscard]] std::pair<std::vector<tr_quark>, char const* /*errmsg*/> makeLabels(tr_variant* list)
{
auto labels = std::vector<tr_quark>{};
size_t const n = tr_variantListSize(list);
labels.reserve(n);
for (size_t i = 0; i < n; ++i)
{
auto label = std::string_view{};
if (!tr_variantGetStrView(tr_variantListChild(list, i), &label))
{
continue;
}
label = tr_strvStrip(label);
if (std::empty(label))
{
return { {}, "labels cannot be empty" };
}
if (tr_strvContains(label, ','))
{
return { {}, "labels cannot contain comma (,) character" };
}
labels.emplace_back(tr_quark_new(label));
}
return { labels, nullptr };
}
char const* setLabels(tr_torrent* tor, tr_variant* list)
{
auto [labels, errmsg] = makeLabels(list);
if (errmsg != nullptr)
{
return errmsg;
}
tor->setLabels(labels);
return nullptr;
}
char const* setFilePriorities(tr_torrent* tor, tr_priority_t priority, tr_variant* list)
{
char const* errmsg = nullptr;
auto const n_files = tor->fileCount();
auto files = std::vector<tr_file_index_t>{};
files.reserve(n_files);
if (size_t const n = tr_variantListSize(list); n != 0)
{
for (size_t i = 0; i < n; ++i)
{
if (auto val = int64_t{}; tr_variantGetInt(tr_variantListChild(list, i), &val))
{
if (auto const file_index = static_cast<tr_file_index_t>(val); file_index < n_files)
{
files.push_back(file_index);
}
else
{
errmsg = "file index out of range";
}
}
}
}
else // if empty set, apply to all
{
files.resize(n_files);
std::iota(std::begin(files), std::end(files), 0);
}
tor->setFilePriorities(std::data(files), std::size(files), priority);
return errmsg;
}
char const* setFileDLs(tr_torrent* tor, bool wanted, tr_variant* list)
{
char const* errmsg = nullptr;
auto const n_files = tor->fileCount();
auto const n_items = tr_variantListSize(list);
auto files = std::vector<tr_file_index_t>{};
files.reserve(n_files);
if (n_items != 0) // if argument list, process them
{
for (size_t i = 0; i < n_items; ++i)
{
if (auto val = int64_t{}; tr_variantGetInt(tr_variantListChild(list, i), &val))
{
if (auto const file_index = static_cast<tr_file_index_t>(val); file_index < n_files)
{
files.push_back(file_index);
}
else
{
errmsg = "file index out of range";
}
}
}
}
else // if empty set, apply to all
{
files.resize(n_files);
std::iota(std::begin(files), std::end(files), 0);
}
tor->setFilesWanted(std::data(files), std::size(files), wanted);
return errmsg;
}
char const* addTrackerUrls(tr_torrent* tor, tr_variant* urls)
{
auto const old_size = tor->trackerCount();
for (size_t i = 0, n = tr_variantListSize(urls); i < n; ++i)
{
auto announce = std::string_view();
if (auto const* const val = tr_variantListChild(urls, i); val == nullptr || !tr_variantGetStrView(val, &announce))
{
continue;
}
tor->announceList().add(announce);
}
if (tor->trackerCount() == old_size)
{
return "error setting announce list";
}
tor->announceList().save(tor->torrentFile());
tor->on_announce_list_changed();
return nullptr;
}
char const* replaceTrackers(tr_torrent* tor, tr_variant* urls)
{
auto changed = bool{ false };
for (size_t i = 0, url_count = tr_variantListSize(urls); i + 1 < url_count; i += 2)
{
auto id = int64_t{};
auto newval = std::string_view{};
if (tr_variantGetInt(tr_variantListChild(urls, i), &id) &&
tr_variantGetStrView(tr_variantListChild(urls, i + 1), &newval))
{
changed |= tor->announceList().replace(static_cast<tr_tracker_id_t>(id), newval);
}
}
if (!changed)
{
return "error setting announce list";
}
tor->announceList().save(tor->torrentFile());
tor->on_announce_list_changed();
return nullptr;
}
char const* removeTrackers(tr_torrent* tor, tr_variant* ids)
{
auto const old_size = tor->trackerCount();
for (size_t i = 0, n = tr_variantListSize(ids); i < n; ++i)
{
auto id = int64_t{};
if (auto const* const val = tr_variantListChild(ids, i); val == nullptr || !tr_variantGetInt(val, &id))
{
continue;
}
tor->announceList().remove(static_cast<tr_tracker_id_t>(id));
}
if (tor->trackerCount() == old_size)
{
return "error setting announce list";
}
tor->announceList().save(tor->torrentFile());
tor->on_announce_list_changed();
return nullptr;
}
char const* torrentSet(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
char const* errmsg = nullptr;
for (auto* tor : getTorrents(session, args_in))
{
auto tmp = int64_t{};
auto d = double{};
tr_variant* tmp_variant = nullptr;
if (tr_variantDictFindInt(args_in, TR_KEY_bandwidthPriority, &tmp))
{
auto const priority = tr_priority_t(tmp);
if (tr_isPriority(priority))
{
tr_torrentSetPriority(tor, priority);
}
}
if (std::string_view group; tr_variantDictFindStrView(args_in, TR_KEY_group, &group))
{
tor->setBandwidthGroup(group);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_labels, &tmp_variant))
{
errmsg = setLabels(tor, tmp_variant);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_files_unwanted, &tmp_variant))
{
errmsg = setFileDLs(tor, false, tmp_variant);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_files_wanted, &tmp_variant))
{
errmsg = setFileDLs(tor, true, tmp_variant);
}
if (tr_variantDictFindInt(args_in, TR_KEY_peer_limit, &tmp))
{
tr_torrentSetPeerLimit(tor, tmp);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_priority_high, &tmp_variant))
{
errmsg = setFilePriorities(tor, TR_PRI_HIGH, tmp_variant);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_priority_low, &tmp_variant))
{
errmsg = setFilePriorities(tor, TR_PRI_LOW, tmp_variant);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_priority_normal, &tmp_variant))
{
errmsg = setFilePriorities(tor, TR_PRI_NORMAL, tmp_variant);
}
if (tr_variantDictFindInt(args_in, TR_KEY_downloadLimit, &tmp))
{
tr_torrentSetSpeedLimit_KBps(tor, TR_DOWN, tmp);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_downloadLimited, &val))
{
tor->useSpeedLimit(TR_DOWN, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_honorsSessionLimits, &val))
{
tr_torrentUseSessionLimits(tor, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_uploadLimit, &tmp))
{
tr_torrentSetSpeedLimit_KBps(tor, TR_UP, tmp);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_uploadLimited, &val))
{
tor->useSpeedLimit(TR_UP, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_seedIdleLimit, &tmp))
{
tor->setIdleLimit(static_cast<uint16_t>(tmp));
}
if (tr_variantDictFindInt(args_in, TR_KEY_seedIdleMode, &tmp))
{
tr_torrentSetIdleMode(tor, (tr_idlelimit)tmp);
}
if (tr_variantDictFindReal(args_in, TR_KEY_seedRatioLimit, &d))
{
tr_torrentSetRatioLimit(tor, d);
}
if (tr_variantDictFindInt(args_in, TR_KEY_seedRatioMode, &tmp))
{
tor->setRatioMode(static_cast<tr_ratiolimit>(tmp));
}
if (tr_variantDictFindInt(args_in, TR_KEY_queuePosition, &tmp))
{
tr_torrentSetQueuePosition(tor, static_cast<size_t>(tmp));
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_trackerAdd, &tmp_variant))
{
errmsg = addTrackerUrls(tor, tmp_variant);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_trackerRemove, &tmp_variant))
{
errmsg = removeTrackers(tor, tmp_variant);
}
if (errmsg == nullptr && tr_variantDictFindList(args_in, TR_KEY_trackerReplace, &tmp_variant))
{
errmsg = replaceTrackers(tor, tmp_variant);
}
if (std::string_view txt; errmsg == nullptr && tr_variantDictFindStrView(args_in, TR_KEY_trackerList, &txt))
{
if (!tor->setTrackerList(txt))
{
errmsg = "Invalid tracker list";
}
}
session->rpcNotify(TR_RPC_TORRENT_CHANGED, tor);
}
return errmsg;
}
char const* torrentSetLocation(
tr_session* session,
tr_variant* args_in,
tr_variant* /*args_out*/,
tr_rpc_idle_data* /*idle_data*/)
{
auto location = std::string_view{};
if (!tr_variantDictFindStrView(args_in, TR_KEY_location, &location))
{
return "no location";
}
if (tr_sys_path_is_relative(location))
{
return "new location path is not absolute";
}
auto move = bool{};
(void)tr_variantDictFindBool(args_in, TR_KEY_move, &move);
for (auto* tor : getTorrents(session, args_in))
{
tor->setLocation(location, move, nullptr, 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* data = static_cast<struct tr_rpc_idle_data*>(user_data);
tr_variantDictAddInt(data->args_out, TR_KEY_id, tr_torrentId(tor));
tr_variantDictAddStr(data->args_out, TR_KEY_path, oldpath);
tr_variantDictAddStr(data->args_out, TR_KEY_name, newname);
tr_idle_function_done(data, error != 0 ? tr_strerror(error) : SuccessResult);
}
char const* torrentRenamePath(
tr_session* session,
tr_variant* args_in,
tr_variant* /*args_out*/,
struct tr_rpc_idle_data* idle_data)
{
char const* errmsg = nullptr;
auto oldpath = std::string_view{};
(void)tr_variantDictFindStrView(args_in, TR_KEY_path, &oldpath);
auto newname = std::string_view{};
(void)tr_variantDictFindStrView(args_in, TR_KEY_name, &newname);
if (auto const torrents = getTorrents(session, args_in); std::size(torrents) == 1)
{
torrents[0]->renamePath(oldpath, newname, torrentRenamePathDone, idle_data);
}
else
{
errmsg = "torrent-rename-path requires 1 torrent";
}
/* cleanup */
return errmsg;
}
// ---
void onPortTested(tr_web::FetchResponse const& web_response)
{
auto const& [status, body, did_connect, did_timeout, user_data] = web_response;
auto* data = static_cast<struct tr_rpc_idle_data*>(user_data);
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)));
}
else /* success */
{
bool const is_open = tr_strvStartsWith(body, '1');
tr_variantDictAddBool(data->args_out, TR_KEY_port_is_open, is_open);
tr_idle_function_done(data, SuccessResult);
}
}
char const* portTest(tr_session* session, tr_variant* /*args_in*/, tr_variant* /*args_out*/, struct tr_rpc_idle_data* idle_data)
{
auto const port = session->advertisedPeerPort();
auto const url = fmt::format(FMT_STRING("https://portcheck.transmissionbt.com/{:d}"), port.host());
session->fetch({ url, onPortTested, idle_data });
return nullptr;
}
// ---
void onBlocklistFetched(tr_web::FetchResponse const& web_response)
{
auto const& [status, body, 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 (tr_error* error = nullptr; !tr_saveFile(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)));
tr_error_clear(&error);
return;
}
// feed it to the session and give the client a response
size_t const rule_count = tr_blocklistSetContent(session, filename);
tr_variantDictAddInt(data->args_out, TR_KEY_blocklist_size, static_cast<int64_t>(rule_count));
tr_sys_path_remove(filename);
tr_idle_function_done(data, SuccessResult);
}
char const* blocklistUpdate(
tr_session* session,
tr_variant* /*args_in*/,
tr_variant* /*args_out*/,
struct tr_rpc_idle_data* idle_data)
{
session->fetch({ session->blocklistUrl(), onBlocklistFetched, idle_data });
return nullptr;
}
// ---
void addTorrentImpl(struct tr_rpc_idle_data* data, tr_ctor* ctor)
{
tr_torrent* duplicate_of = nullptr;
tr_torrent* tor = tr_torrentNew(ctor, &duplicate_of);
tr_ctorFree(ctor);
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)
{
addTorrentInfo(
duplicate_of,
TrFormat::Object,
tr_variantDictAdd(data->args_out, TR_KEY_torrent_duplicate),
std::data(Fields),
std::size(Fields));
tr_idle_function_done(data, "duplicate torrent"sv);
return;
}
data->session->rpcNotify(TR_RPC_TORRENT_ADDED, tor);
addTorrentInfo(
tor,
TrFormat::Object,
tr_variantDictAdd(data->args_out, TR_KEY_torrent_added),
std::data(Fields),
std::size(Fields));
tr_idle_function_done(data, SuccessResult);
}
struct add_torrent_idle_data
{
struct tr_rpc_idle_data* data;
tr_ctor* ctor;
};
void onMetadataFetched(tr_web::FetchResponse const& web_response)
{
auto const& [status, body, 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.. */
{
tr_ctorSetMetainfo(data->ctor, std::data(body), std::size(body), nullptr);
addTorrentImpl(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);
}
auto fileListFromList(tr_variant* list)
{
size_t const n = tr_variantListSize(list);
auto files = std::vector<tr_file_index_t>{};
files.reserve(n);
auto file_index = int64_t{};
for (size_t i = 0; i < n; ++i)
{
if (tr_variantGetInt(tr_variantListChild(list, i), &file_index))
{
files.push_back(static_cast<tr_file_index_t>(file_index));
}
}
return files;
}
char const* torrentAdd(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* idle_data)
{
TR_ASSERT(idle_data != nullptr);
auto filename = std::string_view{};
(void)tr_variantDictFindStrView(args_in, TR_KEY_filename, &filename);
auto metainfo_base64 = std::string_view{};
(void)tr_variantDictFindStrView(args_in, TR_KEY_metainfo, &metainfo_base64);
if (std::empty(filename) && std::empty(metainfo_base64))
{
return "no filename or metainfo specified";
}
auto download_dir = std::string_view{};
if (tr_variantDictFindStrView(args_in, TR_KEY_download_dir, &download_dir) && tr_sys_path_is_relative(download_dir))
{
return "download directory path is not absolute";
}
auto i = int64_t{};
tr_variant* l = nullptr;
tr_ctor* ctor = tr_ctorNew(session);
/* set the optional arguments */
auto cookies = std::string_view{};
(void)tr_variantDictFindStrView(args_in, TR_KEY_cookies, &cookies);
if (!std::empty(download_dir))
{
auto const sz_download_dir = std::string{ download_dir };
tr_ctorSetDownloadDir(ctor, TR_FORCE, sz_download_dir.c_str());
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_paused, &val))
{
tr_ctorSetPaused(ctor, TR_FORCE, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_peer_limit, &i))
{
tr_ctorSetPeerLimit(ctor, TR_FORCE, (uint16_t)i);
}
if (tr_variantDictFindInt(args_in, TR_KEY_bandwidthPriority, &i))
{
tr_ctorSetBandwidthPriority(ctor, (tr_priority_t)i);
}
if (tr_variantDictFindList(args_in, TR_KEY_files_unwanted, &l))
{
auto const files = fileListFromList(l);
tr_ctorSetFilesWanted(ctor, std::data(files), std::size(files), false);
}
if (tr_variantDictFindList(args_in, TR_KEY_files_wanted, &l))
{
auto const files = fileListFromList(l);
tr_ctorSetFilesWanted(ctor, std::data(files), std::size(files), true);
}
if (tr_variantDictFindList(args_in, TR_KEY_priority_low, &l))
{
auto const files = fileListFromList(l);
tr_ctorSetFilePriorities(ctor, std::data(files), std::size(files), TR_PRI_LOW);
}
if (tr_variantDictFindList(args_in, TR_KEY_priority_normal, &l))
{
auto const files = fileListFromList(l);
tr_ctorSetFilePriorities(ctor, std::data(files), std::size(files), TR_PRI_NORMAL);
}
if (tr_variantDictFindList(args_in, TR_KEY_priority_high, &l))
{
auto const files = fileListFromList(l);
tr_ctorSetFilePriorities(ctor, std::data(files), std::size(files), TR_PRI_HIGH);
}
if (tr_variantDictFindList(args_in, TR_KEY_labels, &l))
{
auto [labels, errmsg] = makeLabels(l);
if (errmsg != nullptr)
{
tr_ctorFree(ctor);
return errmsg;
}
tr_ctorSetLabels(ctor, std::data(labels), std::size(labels));
}
tr_logAddTrace(fmt::format("torrentAdd: filename is '{}'", filename));
if (isCurlURL(filename))
{
auto* const d = new add_torrent_idle_data{ idle_data, ctor };
auto options = tr_web::FetchOptions{ filename, onMetadataFetched, d };
options.cookies = cookies;
session->fetch(std::move(options));
}
else
{
if (std::empty(filename))
{
auto const metainfo = tr_base64_decode(metainfo_base64);
tr_ctorSetMetainfo(ctor, std::data(metainfo), std::size(metainfo), nullptr);
}
else
{
if (tr_sys_path_exists(tr_pathbuf{ filename }))
{
tr_ctorSetMetainfoFromFile(ctor, filename);
}
else
{
tr_ctorSetMetainfoFromMagnetLink(ctor, filename);
}
}
addTorrentImpl(idle_data, ctor);
}
return nullptr;
}
// ---
char const* groupGet(tr_session* s, tr_variant* args_in, tr_variant* args_out, struct tr_rpc_idle_data* /*idle_data*/)
{
std::set<std::string_view> names;
if (std::string_view one_name; tr_variantDictFindStrView(args_in, TR_KEY_name, &one_name))
{
names.insert(one_name);
}
else if (tr_variant* names_list = nullptr; tr_variantDictFindList(args_in, TR_KEY_name, &names_list))
{
auto const names_count = tr_variantListSize(names_list);
for (size_t i = 0; i < names_count; ++i)
{
auto const* const v = tr_variantListChild(names_list, i);
if (std::string_view l; tr_variantIsString(v) && tr_variantGetStrView(v, &l))
{
names.insert(l);
}
}
}
auto* const list = tr_variantDictAddList(args_out, TR_KEY_group, 1);
for (auto const& [name, group] : s->bandwidthGroups())
{
if (names.empty() || names.count(name.sv()) > 0)
{
tr_variant* dict = tr_variantListAddDict(list, 5);
auto limits = group->getLimits();
tr_variantDictAddBool(dict, TR_KEY_honorsSessionLimits, group->areParentLimitsHonored(TR_UP));
tr_variantDictAddStr(dict, TR_KEY_name, name);
tr_variantDictAddInt(dict, TR_KEY_speed_limit_down, limits.down_limit_KBps);
tr_variantDictAddBool(dict, TR_KEY_speed_limit_down_enabled, limits.down_limited);
tr_variantDictAddInt(dict, TR_KEY_speed_limit_up, limits.up_limit_KBps);
tr_variantDictAddBool(dict, TR_KEY_speed_limit_up_enabled, limits.up_limited);
}
}
return nullptr;
}
char const* groupSet(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, struct tr_rpc_idle_data* /*idle_data*/)
{
auto name = std::string_view{};
(void)tr_variantDictFindStrView(args_in, TR_KEY_name, &name);
name = tr_strvStrip(name);
if (std::empty(name))
{
return "No group name given";
}
auto& group = session->getBandwidthGroup(name);
auto limits = group.getLimits();
(void)tr_variantDictFindBool(args_in, TR_KEY_speed_limit_down_enabled, &limits.down_limited);
(void)tr_variantDictFindBool(args_in, TR_KEY_speed_limit_up_enabled, &limits.up_limited);
if (auto limit = int64_t{}; tr_variantDictFindInt(args_in, TR_KEY_speed_limit_down, &limit))
{
limits.down_limit_KBps = static_cast<tr_kilobytes_per_second_t>(limit);
}
if (auto limit = int64_t{}; tr_variantDictFindInt(args_in, TR_KEY_speed_limit_up, &limit))
{
limits.up_limit_KBps = static_cast<tr_kilobytes_per_second_t>(limit);
}
group.setLimits(&limits);
if (auto honors = bool{}; tr_variantDictFindBool(args_in, TR_KEY_honorsSessionLimits, &honors))
{
group.honorParentLimits(TR_UP, honors);
group.honorParentLimits(TR_DOWN, honors);
}
return nullptr;
}
// ---
char const* sessionSet(tr_session* session, tr_variant* args_in, tr_variant* /*args_out*/, tr_rpc_idle_data* /*idle_data*/)
{
auto download_dir = std::string_view{};
auto incomplete_dir = std::string_view{};
if (tr_variantDictFindStrView(args_in, TR_KEY_download_dir, &download_dir) && tr_sys_path_is_relative(download_dir))
{
return "download directory path is not absolute";
}
if (tr_variantDictFindStrView(args_in, TR_KEY_incomplete_dir, &incomplete_dir) && tr_sys_path_is_relative(incomplete_dir))
{
return "incomplete torrents directory path is not absolute";
}
auto d = double{};
auto i = int64_t{};
auto sv = std::string_view{};
if (tr_variantDictFindInt(args_in, TR_KEY_cache_size_mb, &i))
{
tr_sessionSetCacheLimit_MB(session, i);
}
if (tr_variantDictFindInt(args_in, TR_KEY_alt_speed_up, &i))
{
tr_sessionSetAltSpeed_KBps(session, TR_UP, i);
}
if (tr_variantDictFindInt(args_in, TR_KEY_alt_speed_down, &i))
{
tr_sessionSetAltSpeed_KBps(session, TR_DOWN, i);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_alt_speed_enabled, &val))
{
tr_sessionUseAltSpeed(session, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_alt_speed_time_begin, &i))
{
tr_sessionSetAltSpeedBegin(session, static_cast<size_t>(i));
}
if (tr_variantDictFindInt(args_in, TR_KEY_alt_speed_time_end, &i))
{
tr_sessionSetAltSpeedEnd(session, static_cast<size_t>(i));
}
if (tr_variantDictFindInt(args_in, TR_KEY_alt_speed_time_day, &i))
{
tr_sessionSetAltSpeedDay(session, tr_sched_day(i));
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_alt_speed_time_enabled, &val))
{
tr_sessionUseAltSpeedTime(session, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_blocklist_enabled, &val))
{
session->useBlocklist(val);
}
if (tr_variantDictFindStrView(args_in, TR_KEY_blocklist_url, &sv))
{
session->setBlocklistUrl(sv);
}
if (!std::empty(download_dir))
{
session->setDownloadDir(download_dir);
}
if (tr_variantDictFindInt(args_in, TR_KEY_queue_stalled_minutes, &i))
{
tr_sessionSetQueueStalledMinutes(session, static_cast<int>(i));
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_queue_stalled_enabled, &val))
{
tr_sessionSetQueueStalledEnabled(session, val);
}
if (tr_variantDictFindStrView(args_in, TR_KEY_default_trackers, &sv))
{
session->setDefaultTrackers(sv);
}
if (tr_variantDictFindInt(args_in, TR_KEY_download_queue_size, &i))
{
tr_sessionSetQueueSize(session, TR_DOWN, i);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_download_queue_enabled, &val))
{
tr_sessionSetQueueEnabled(session, TR_DOWN, val);
}
if (!std::empty(incomplete_dir))
{
session->setIncompleteDir(incomplete_dir);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_incomplete_dir_enabled, &val))
{
session->useIncompleteDir(val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_peer_limit_global, &i))
{
tr_sessionSetPeerLimit(session, i);
}
if (tr_variantDictFindInt(args_in, TR_KEY_peer_limit_per_torrent, &i))
{
tr_sessionSetPeerLimitPerTorrent(session, i);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_pex_enabled, &val))
{
tr_sessionSetPexEnabled(session, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_dht_enabled, &val))
{
tr_sessionSetDHTEnabled(session, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_utp_enabled, &val))
{
tr_sessionSetUTPEnabled(session, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_lpd_enabled, &val))
{
tr_sessionSetLPDEnabled(session, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_peer_port_random_on_start, &val))
{
tr_sessionSetPeerPortRandomOnStart(session, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_peer_port, &i))
{
tr_sessionSetPeerPort(session, i);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_port_forwarding_enabled, &val))
{
tr_sessionSetPortForwardingEnabled(session, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_rename_partial_files, &val))
{
tr_sessionSetIncompleteFileNamingEnabled(session, val);
}
if (tr_variantDictFindReal(args_in, TR_KEY_seedRatioLimit, &d))
{
tr_sessionSetRatioLimit(session, d);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_seedRatioLimited, &val))
{
tr_sessionSetRatioLimited(session, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_idle_seeding_limit, &i))
{
tr_sessionSetIdleLimit(session, i);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_idle_seeding_limit_enabled, &val))
{
tr_sessionSetIdleLimited(session, val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_start_added_torrents, &val))
{
tr_sessionSetPaused(session, !val);
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_seed_queue_enabled, &val))
{
tr_sessionSetQueueEnabled(session, TR_UP, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_seed_queue_size, &i))
{
tr_sessionSetQueueSize(session, TR_UP, i);
}
for (auto const& [enabled_key, script_key, script] : tr_session::Scripts)
{
if (auto enabled = bool{}; tr_variantDictFindBool(args_in, enabled_key, &enabled))
{
session->useScript(script, enabled);
}
if (auto file = std::string_view{}; tr_variantDictFindStrView(args_in, script_key, &file))
{
session->setScript(script, file);
}
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_trash_original_torrent_files, &val))
{
tr_sessionSetDeleteSource(session, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_speed_limit_down, &i))
{
tr_sessionSetSpeedLimit_KBps(session, TR_DOWN, static_cast<tr_kilobytes_per_second_t>(i));
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_speed_limit_down_enabled, &val))
{
tr_sessionLimitSpeed(session, TR_DOWN, val);
}
if (tr_variantDictFindInt(args_in, TR_KEY_speed_limit_up, &i))
{
tr_sessionSetSpeedLimit_KBps(session, TR_UP, static_cast<tr_kilobytes_per_second_t>(i));
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_speed_limit_up_enabled, &val))
{
tr_sessionLimitSpeed(session, TR_UP, val);
}
if (tr_variantDictFindStrView(args_in, TR_KEY_encryption, &sv))
{
if (sv == "required"sv)
{
tr_sessionSetEncryption(session, TR_ENCRYPTION_REQUIRED);
}
else if (sv == "tolerated"sv)
{
tr_sessionSetEncryption(session, TR_CLEAR_PREFERRED);
}
else
{
tr_sessionSetEncryption(session, TR_ENCRYPTION_PREFERRED);
}
}
if (tr_variantDictFindInt(args_in, TR_KEY_anti_brute_force_threshold, &i))
{
tr_sessionSetAntiBruteForceThreshold(session, static_cast<int>(i));
}
if (auto val = bool{}; tr_variantDictFindBool(args_in, TR_KEY_anti_brute_force_enabled, &val))
{
tr_sessionSetAntiBruteForceEnabled(session, val);
}
session->rpcNotify(TR_RPC_SESSION_CHANGED, nullptr);
return nullptr;
}
char const* sessionStats(tr_session* session, tr_variant* /*args_in*/, tr_variant* args_out, tr_rpc_idle_data* /*idle_data*/)
{
auto const& torrents = session->torrents();
auto const total = std::size(torrents);
auto const running = std::count_if(
std::begin(torrents),
std::end(torrents),
[](auto const* tor) { return tor->isRunning; });
tr_variantDictAddInt(args_out, TR_KEY_activeTorrentCount, running);
tr_variantDictAddReal(args_out, TR_KEY_downloadSpeed, session->pieceSpeedBps(TR_DOWN));
tr_variantDictAddInt(args_out, TR_KEY_pausedTorrentCount, total - running);
tr_variantDictAddInt(args_out, TR_KEY_torrentCount, total);
tr_variantDictAddReal(args_out, TR_KEY_uploadSpeed, session->pieceSpeedBps(TR_UP));
auto stats = session->stats().cumulative();
tr_variant* d = tr_variantDictAddDict(args_out, TR_KEY_cumulative_stats, 5);
tr_variantDictAddInt(d, TR_KEY_downloadedBytes, stats.downloadedBytes);
tr_variantDictAddInt(d, TR_KEY_filesAdded, stats.filesAdded);
tr_variantDictAddInt(d, TR_KEY_secondsActive, stats.secondsActive);
tr_variantDictAddInt(d, TR_KEY_sessionCount, stats.sessionCount);
tr_variantDictAddInt(d, TR_KEY_uploadedBytes, stats.uploadedBytes);
stats = session->stats().current();
d = tr_variantDictAddDict(args_out, TR_KEY_current_stats, 5);
tr_variantDictAddInt(d, TR_KEY_downloadedBytes, stats.downloadedBytes);
tr_variantDictAddInt(d, TR_KEY_filesAdded, stats.filesAdded);
tr_variantDictAddInt(d, TR_KEY_secondsActive, stats.secondsActive);
tr_variantDictAddInt(d, TR_KEY_sessionCount, stats.sessionCount);
tr_variantDictAddInt(d, TR_KEY_uploadedBytes, stats.uploadedBytes);
return nullptr;
}
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;
}
}
void addSessionField(tr_session const* s, tr_variant* d, tr_quark key)
{
switch (key)
{
case TR_KEY_alt_speed_up:
tr_variantDictAddInt(d, key, tr_sessionGetAltSpeed_KBps(s, TR_UP));
break;
case TR_KEY_alt_speed_down:
tr_variantDictAddInt(d, key, tr_sessionGetAltSpeed_KBps(s, TR_DOWN));
break;
case TR_KEY_alt_speed_enabled:
tr_variantDictAddBool(d, key, tr_sessionUsesAltSpeed(s));
break;
case TR_KEY_alt_speed_time_begin:
tr_variantDictAddInt(d, key, tr_sessionGetAltSpeedBegin(s));
break;
case TR_KEY_alt_speed_time_end:
tr_variantDictAddInt(d, key, tr_sessionGetAltSpeedEnd(s));
break;
case TR_KEY_alt_speed_time_day:
tr_variantDictAddInt(d, key, tr_sessionGetAltSpeedDay(s));
break;
case TR_KEY_alt_speed_time_enabled:
tr_variantDictAddBool(d, key, tr_sessionUsesAltSpeedTime(s));
break;
case TR_KEY_blocklist_enabled:
tr_variantDictAddBool(d, key, s->useBlocklist());
break;
case TR_KEY_blocklist_url:
tr_variantDictAddStr(d, key, s->blocklistUrl());
break;
case TR_KEY_cache_size_mb:
tr_variantDictAddInt(d, key, tr_sessionGetCacheLimit_MB(s));
break;
case TR_KEY_blocklist_size:
tr_variantDictAddInt(d, key, tr_blocklistGetRuleCount(s));
break;
case TR_KEY_config_dir:
tr_variantDictAddStr(d, key, s->configDir());
break;
case TR_KEY_default_trackers:
tr_variantDictAddStr(d, key, s->defaultTrackersStr());
break;
case TR_KEY_download_dir:
tr_variantDictAddStr(d, key, s->downloadDir());
break;
case TR_KEY_download_dir_free_space:
tr_variantDictAddInt(d, key, tr_dirSpace(s->downloadDir()).free);
break;
case TR_KEY_download_queue_enabled:
tr_variantDictAddBool(d, key, s->queueEnabled(TR_DOWN));
break;
case TR_KEY_download_queue_size:
tr_variantDictAddInt(d, key, s->queueSize(TR_DOWN));
break;
case TR_KEY_peer_limit_global:
tr_variantDictAddInt(d, key, s->peerLimit());
break;
case TR_KEY_peer_limit_per_torrent:
tr_variantDictAddInt(d, key, s->peerLimitPerTorrent());
break;
case TR_KEY_incomplete_dir:
tr_variantDictAddStr(d, key, s->incompleteDir());
break;
case TR_KEY_incomplete_dir_enabled:
tr_variantDictAddBool(d, key, s->useIncompleteDir());
break;
case TR_KEY_pex_enabled:
tr_variantDictAddBool(d, key, s->allowsPEX());
break;
case TR_KEY_tcp_enabled:
tr_variantDictAddBool(d, key, s->allowsTCP());
break;
case TR_KEY_utp_enabled:
tr_variantDictAddBool(d, key, s->allowsUTP());
break;
case TR_KEY_dht_enabled:
tr_variantDictAddBool(d, key, s->allowsDHT());
break;
case TR_KEY_lpd_enabled:
tr_variantDictAddBool(d, key, s->allowsLPD());
break;
case TR_KEY_peer_port:
tr_variantDictAddInt(d, key, s->advertisedPeerPort().host());
break;
case TR_KEY_peer_port_random_on_start:
tr_variantDictAddBool(d, key, s->isPortRandom());
break;
case TR_KEY_port_forwarding_enabled:
tr_variantDictAddBool(d, key, tr_sessionIsPortForwardingEnabled(s));
break;
case TR_KEY_rename_partial_files:
tr_variantDictAddBool(d, key, s->isIncompleteFileNamingEnabled());
break;
case TR_KEY_rpc_version:
tr_variantDictAddInt(d, key, RpcVersion);
break;
case TR_KEY_rpc_version_semver:
tr_variantDictAddStrView(d, key, RpcVersionSemver);
break;
case TR_KEY_rpc_version_minimum:
tr_variantDictAddInt(d, key, RpcVersionMin);
break;
case TR_KEY_seedRatioLimit:
tr_variantDictAddReal(d, key, s->desiredRatio());
break;
case TR_KEY_seedRatioLimited:
tr_variantDictAddBool(d, key, s->isRatioLimited());
break;
case TR_KEY_idle_seeding_limit:
tr_variantDictAddInt(d, key, s->idleLimitMinutes());
break;
case TR_KEY_idle_seeding_limit_enabled:
tr_variantDictAddBool(d, key, s->isIdleLimited());
break;
case TR_KEY_seed_queue_enabled:
tr_variantDictAddBool(d, key, s->queueEnabled(TR_UP));
break;
case TR_KEY_seed_queue_size:
tr_variantDictAddInt(d, key, s->queueSize(TR_UP));
break;
case TR_KEY_start_added_torrents:
tr_variantDictAddBool(d, key, !s->shouldPauseAddedTorrents());
break;
case TR_KEY_trash_original_torrent_files:
tr_variantDictAddBool(d, key, s->shouldDeleteSource());
break;
case TR_KEY_speed_limit_up:
tr_variantDictAddInt(d, key, tr_sessionGetSpeedLimit_KBps(s, TR_UP));
break;
case TR_KEY_speed_limit_up_enabled:
tr_variantDictAddBool(d, key, s->isSpeedLimited(TR_UP));
break;
case TR_KEY_speed_limit_down:
tr_variantDictAddInt(d, key, tr_sessionGetSpeedLimit_KBps(s, TR_DOWN));
break;
case TR_KEY_speed_limit_down_enabled:
tr_variantDictAddBool(d, key, s->isSpeedLimited(TR_DOWN));
break;
case TR_KEY_script_torrent_added_filename:
tr_variantDictAddStr(d, key, s->script(TR_SCRIPT_ON_TORRENT_ADDED));
break;
case TR_KEY_script_torrent_added_enabled:
tr_variantDictAddBool(d, key, s->useScript(TR_SCRIPT_ON_TORRENT_ADDED));
break;
case TR_KEY_script_torrent_done_filename:
tr_variantDictAddStr(d, key, s->script(TR_SCRIPT_ON_TORRENT_DONE));
break;
case TR_KEY_script_torrent_done_enabled:
tr_variantDictAddBool(d, key, s->useScript(TR_SCRIPT_ON_TORRENT_DONE));
break;
case TR_KEY_script_torrent_done_seeding_filename:
tr_variantDictAddStr(d, key, s->script(TR_SCRIPT_ON_TORRENT_DONE_SEEDING));
break;
case TR_KEY_script_torrent_done_seeding_enabled:
tr_variantDictAddBool(d, key, s->useScript(TR_SCRIPT_ON_TORRENT_DONE_SEEDING));
break;
case TR_KEY_queue_stalled_enabled:
tr_variantDictAddBool(d, key, s->queueStalledEnabled());
break;
case TR_KEY_queue_stalled_minutes:
tr_variantDictAddInt(d, key, s->queueStalledMinutes());
break;
case TR_KEY_anti_brute_force_enabled:
tr_variantDictAddBool(d, key, tr_sessionGetAntiBruteForceEnabled(s));
break;
case TR_KEY_anti_brute_force_threshold:
tr_variantDictAddInt(d, key, tr_sessionGetAntiBruteForceThreshold(s));
break;
case TR_KEY_units:
tr_formatter_get_units(tr_variantDictAddDict(d, key, 0));
break;
case TR_KEY_version:
tr_variantDictAddStrView(d, key, LONG_VERSION_STRING);
break;
case TR_KEY_encryption:
tr_variantDictAddStr(d, key, getEncryptionModeString(tr_sessionGetEncryption(s)));
break;
case TR_KEY_session_id:
tr_variantDictAddStr(d, key, s->sessionId());
break;
}
}
char const* sessionGet(tr_session* s, tr_variant* args_in, tr_variant* args_out, tr_rpc_idle_data* /*idle_data*/)
{
if (tr_variant* fields = nullptr; tr_variantDictFindList(args_in, TR_KEY_fields, &fields))
{
size_t const field_count = tr_variantListSize(fields);
for (size_t i = 0; i < field_count; ++i)
{
auto field_name = std::string_view{};
if (!tr_variantGetStrView(tr_variantListChild(fields, i), &field_name))
{
continue;
}
if (auto const field_id = tr_quark_lookup(field_name); field_id)
{
addSessionField(s, args_out, *field_id);
}
}
}
else
{
for (tr_quark field_id = TR_KEY_NONE + 1; field_id < TR_N_KEYS; ++field_id)
{
addSessionField(s, args_out, field_id);
}
}
return nullptr;
}
char const* freeSpace(tr_session* /*session*/, tr_variant* args_in, tr_variant* args_out, tr_rpc_idle_data* /*idle_data*/)
{
auto path = std::string_view{};
if (!tr_variantDictFindStrView(args_in, TR_KEY_path, &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;
errno = 0;
auto const dir_space = tr_dirSpace(path);
char const* const err = dir_space.free < 0 || dir_space.total < 0 ? tr_strerror(errno) : nullptr;
errno = old_errno;
/* response */
tr_variantDictAddStr(args_out, TR_KEY_path, path);
tr_variantDictAddInt(args_out, TR_KEY_size_bytes, dir_space.free);
tr_variantDictAddInt(args_out, TR_KEY_total_size, dir_space.total);
return err;
}
// ---
char const* sessionClose(
tr_session* session,
tr_variant* /*args_in*/,
tr_variant* /*args_out*/,
tr_rpc_idle_data* /*idle_data*/)
{
session->rpcNotify(TR_RPC_SESSION_CLOSE, nullptr);
return nullptr;
}
// ---
using handler = char const* (*)(tr_session*, tr_variant*, tr_variant*, struct tr_rpc_idle_data*);
struct rpc_method
{
std::string_view name;
bool immediate;
handler func;
};
auto constexpr Methods = std::array<rpc_method, 24>{ {
{ "blocklist-update"sv, false, blocklistUpdate },
{ "free-space"sv, true, freeSpace },
{ "group-get"sv, true, groupGet },
{ "group-set"sv, true, groupSet },
{ "port-test"sv, false, portTest },
{ "queue-move-bottom"sv, true, queueMoveBottom },
{ "queue-move-down"sv, true, queueMoveDown },
{ "queue-move-top"sv, true, queueMoveTop },
{ "queue-move-up"sv, true, queueMoveUp },
{ "session-close"sv, true, sessionClose },
{ "session-get"sv, true, sessionGet },
{ "session-set"sv, true, sessionSet },
{ "session-stats"sv, true, sessionStats },
{ "torrent-add"sv, false, torrentAdd },
{ "torrent-get"sv, true, torrentGet },
{ "torrent-reannounce"sv, true, torrentReannounce },
{ "torrent-remove"sv, true, torrentRemove },
{ "torrent-rename-path"sv, false, torrentRenamePath },
{ "torrent-set"sv, true, torrentSet },
{ "torrent-set-location"sv, true, torrentSetLocation },
{ "torrent-start"sv, true, torrentStart },
{ "torrent-start-now"sv, true, torrentStartNow },
{ "torrent-stop"sv, true, torrentStop },
{ "torrent-verify"sv, true, torrentVerify },
} };
void noop_response_callback(tr_session* /*session*/, tr_variant* /*response*/, void* /*user_data*/)
{
}
} // namespace
void tr_rpc_request_exec_json(
tr_session* session,
tr_variant const* request,
tr_rpc_response_func callback,
void* callback_user_data)
{
auto const lock = session->unique_lock();
auto* const mutable_request = const_cast<tr_variant*>(request);
tr_variant* args_in = tr_variantDictFind(mutable_request, TR_KEY_arguments);
char const* result = nullptr;
if (callback == nullptr)
{
callback = noop_response_callback;
}
// parse the request's method name
auto sv = std::string_view{};
rpc_method const* method = nullptr;
if (!tr_variantDictFindStrView(mutable_request, TR_KEY_method, &sv))
{
result = "no method name";
}
else
{
auto const it = std::find_if(std::begin(Methods), std::end(Methods), [&sv](auto const& row) { return row.name == sv; });
if (it == std::end(Methods))
{
result = "method name not recognized";
}
else
{
method = &*it;
}
}
/* if we couldn't figure out which method to use, return an error */
if (result != nullptr)
{
auto response = tr_variant{};
tr_variantInitDict(&response, 3);
tr_variantDictAddDict(&response, TR_KEY_arguments, 0);
tr_variantDictAddStr(&response, TR_KEY_result, result);
if (auto tag = int64_t{}; tr_variantDictFindInt(mutable_request, TR_KEY_tag, &tag))
{
tr_variantDictAddInt(&response, TR_KEY_tag, tag);
}
(*callback)(session, &response, callback_user_data);
tr_variantClear(&response);
}
else if (method->immediate)
{
auto response = tr_variant{};
tr_variantInitDict(&response, 3);
tr_variant* const args_out = tr_variantDictAddDict(&response, TR_KEY_arguments, 0);
result = (*method->func)(session, args_in, args_out, nullptr);
if (result == nullptr)
{
result = "success";
}
tr_variantDictAddStr(&response, TR_KEY_result, result);
if (auto tag = int64_t{}; tr_variantDictFindInt(mutable_request, TR_KEY_tag, &tag))
{
tr_variantDictAddInt(&response, TR_KEY_tag, tag);
}
(*callback)(session, &response, callback_user_data);
tr_variantClear(&response);
}
else
{
auto* const data = new tr_rpc_idle_data{};
data->session = session;
tr_variantInitDict(&data->response, 3);
if (auto tag = int64_t{}; tr_variantDictFindInt(mutable_request, TR_KEY_tag, &tag))
{
tr_variantDictAddInt(&data->response, TR_KEY_tag, tag);
}
data->args_out = tr_variantDictAddDict(&data->response, TR_KEY_arguments, 0);
data->callback = callback;
data->callback_user_data = callback_user_data;
result = (*method->func)(session, args_in, data->args_out, data);
/* Async operation failed prematurely? Invoke callback or else client will not get a reply */
if (result != nullptr)
{
tr_idle_function_done(data, result);
}
}
}
/**
* 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
*/
void tr_rpc_parse_list_str(tr_variant* setme, std::string_view str)
{
auto const values = tr_parseNumberRange(str);
auto const value_count = std::size(values);
if (value_count == 0)
{
tr_variantInitStr(setme, str);
}
else if (value_count == 1)
{
tr_variantInitInt(setme, values[0]);
}
else
{
tr_variantInitList(setme, value_count);
for (auto const& value : values)
{
tr_variantListAddInt(setme, value);
}
}
}
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