d04b4d8274
announce-list is very annoyingly a list of lists. I don't have any useful primitive to manage that case in TorrentRead, so for now I've done a not-so-elegant implementation where I step around the visitor, use my knowledge of the variant and access the outer list directly through boost::get(). I'm not necessarily convinced that this is bad since on the other hand the solution consistent with the rest of the implementation would involve searching for "/[[x]]/[[y]]" which has its own overhead. I mean, variant contains a vector, I can access it normally. Visitor is a convenience thing, I don't see why parser's client code should be obliged to pretend the variant cannot be accessed directly.
74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/* Copyright 2025, Michele "King_DuckZ" Santullo
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* This file is part of ducktorrent.
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*
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* Ducktorrent is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Ducktorrent is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with ducktorrent. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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//This file contains higher level helpers that build on top of the parser and
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//the visitors in parser.hpp and visitors/find_t_visitor.hpp. It is just here
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//for convenience and it is not strictly required to read and parse bencoded
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//data.
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#include <vector>
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#include <string>
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#include <string_view>
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#include <filesystem>
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#include <ostream>
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#include <cstddef>
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#include <cstdint>
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#include <array>
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namespace duck {
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struct TorrentValue;
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class TorrentRead {
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public:
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TorrentRead (std::string_view torrent_path, std::filesystem::path workdir);
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TorrentRead (const TorrentRead&) = delete;
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~TorrentRead() noexcept;
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void print (std::ostream& out) const;
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std::size_t raw_data_size() const;
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const std::vector<TorrentValue>& parsed_values() const;
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std::string_view read_name() const;
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std::size_t read_piece_length() const;
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std::int_fast32_t read_file_count() const;
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std::vector<std::string_view> read_file_path(std::size_t index) const;
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std::string read_joint_file_path(std::size_t index, char sep) const;
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std::size_t read_file_size(std::size_t index) const;
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bool read_is_private() const;
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std::string_view read_comment() const;
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std::string_view read_hashes() const;
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std::string_view read_created_by() const;
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std::string_view read_announce() const;
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std::vector<std::vector<std::string_view>> read_announce_list() const;
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std::time_t read_creation_date() const;
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private:
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const TorrentValue& cached_info_files() const;
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std::filesystem::path m_workdir;
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std::filesystem::path m_torrent_path;
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std::string m_raw_torrent;
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std::vector<TorrentValue> m_parsed_values;
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mutable const TorrentValue* m_cached_info_files;
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};
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std::vector<std::array<std::uint32_t, 5>> group_torrent_hashes (std::string_view hashes);
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std::vector<std::array<std::uint32_t, 5>> group_torrent_hashes (const TorrentRead& torrent);
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} //namespace duck
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