120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
// This file Copyright © 2021-2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0), GPLv3 (SPDX: GPL-3.0),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#pragma once
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#if 0 // TODO(ckerr): re-enable this after tr_info is made private
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#endif
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#include <cstddef>
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#include <optional>
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#include <set>
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#include <string_view>
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#include <vector>
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#include "transmission.h"
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#include "quark.h"
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#include "interned-string.h"
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#include "web-utils.h"
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struct tr_error;
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class tr_announce_list
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{
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public:
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struct tracker_info
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{
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tr_url_parsed_t announce;
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tr_url_parsed_t scrape;
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tr_interned_string announce_str;
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tr_interned_string scrape_str;
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tr_interned_string host;
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tr_tracker_tier_t tier = 0;
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tr_tracker_id_t id = 0;
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int compare(tracker_info const& that) const // <=>
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{
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if (this->tier != that.tier)
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{
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return this->tier < that.tier ? -1 : 1;
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}
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if (this->announce.full != that.announce.full)
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{
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return this->announce.full < that.announce.full ? -1 : 1;
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}
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return 0;
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}
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bool operator<(tracker_info const& that) const
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{
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return compare(that) < 0;
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}
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bool operator==(tracker_info const& that) const
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{
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return compare(that) == 0;
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}
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};
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private:
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using trackers_t = std::vector<tracker_info>;
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public:
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auto begin() const
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{
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return std::begin(trackers_);
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}
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auto end() const
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{
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return std::end(trackers_);
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}
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bool empty() const
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{
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return std::empty(trackers_);
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}
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size_t size() const
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{
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return std::size(trackers_);
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}
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tracker_info const& at(size_t i) const
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{
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return trackers_.at(i);
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}
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std::set<tr_tracker_tier_t> tiers() const;
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tr_tracker_tier_t nextTier() const;
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bool add(tr_tracker_tier_t tier, std::string_view announce_url_sv);
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bool remove(std::string_view announce_url);
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bool remove(tr_tracker_id_t id);
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bool replace(tr_tracker_id_t id, std::string_view announce_url_sv);
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size_t set(char const* const* announce_urls, tr_tracker_tier_t const* tiers, size_t n);
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void clear()
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{
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return trackers_.clear();
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}
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bool save(std::string const& torrent_file, tr_error** error = nullptr) const;
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static std::optional<std::string> announceToScrape(std::string_view announce);
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static tr_quark announceToScrape(tr_quark announce);
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private:
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tr_tracker_tier_t getTier(tr_tracker_tier_t tier, tr_url_parsed_t const& announce) const;
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bool canAdd(tr_url_parsed_t const& announce);
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tr_tracker_id_t nextUniqueId();
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trackers_t::iterator find(std::string_view announce);
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trackers_t::iterator find(tr_tracker_id_t id);
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trackers_t trackers_;
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};
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