286 lines
8.5 KiB
C++
286 lines
8.5 KiB
C++
/*
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Copyright (c) 2008, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_CREATE_TORRENT_HPP_INCLUDED
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#define TORRENT_CREATE_TORRENT_HPP_INCLUDED
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#include "libtorrent/bencode.hpp"
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#include "libtorrent/peer_id.hpp"
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#include "libtorrent/file_storage.hpp"
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#include "libtorrent/config.hpp"
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#include "libtorrent/storage.hpp"
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#include "libtorrent/hasher.hpp"
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#include "libtorrent/utf8.hpp"
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#include "libtorrent/allocator.hpp"
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#include "libtorrent/file.hpp" // for combine_path etc.
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#include <vector>
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#include <string>
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#include <utility>
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#ifdef _MSC_VER
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#pragma warning(push, 1)
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#endif
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#include <boost/scoped_ptr.hpp>
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#include <boost/config.hpp>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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namespace libtorrent
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{
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class torrent_info;
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struct TORRENT_EXPORT create_torrent
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{
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enum flags_t
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{
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optimize = 1
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, merkle = 2
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, modification_time = 4
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, symlinks = 8
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, calculate_file_hashes = 16
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};
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create_torrent(file_storage& fs, int piece_size = 0
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, int pad_file_limit = -1, int flags = optimize, int alignment = 0x4000);
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create_torrent(torrent_info const& ti);
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~create_torrent();
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entry generate() const;
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file_storage const& files() const { return m_files; }
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void set_comment(char const* str);
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void set_creator(char const* str);
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void set_hash(int index, sha1_hash const& h);
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void set_file_hash(int index, sha1_hash const& h);
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void add_url_seed(std::string const& url);
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void add_http_seed(std::string const& url);
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void add_node(std::pair<std::string, int> const& node);
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void add_tracker(std::string const& url, int tier = 0);
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void set_root_cert(std::string const& pem);
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void set_priv(bool p) { m_private = p; }
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int num_pieces() const { return m_files.num_pieces(); }
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int piece_length() const { return m_files.piece_length(); }
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int piece_size(int i) const { return m_files.piece_size(i); }
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bool priv() const { return m_private; }
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bool should_add_file_hashes() const { return m_calculate_file_hashes; }
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std::vector<sha1_hash> const& merkle_tree() const { return m_merkle_tree; }
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private:
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file_storage& m_files;
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// if m_info_dict is initialized, it is
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// used instead of m_files to generate
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// the info dictionary
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entry m_info_dict;
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// the urls to the trackers
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typedef std::pair<std::string, int> announce_entry;
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std::vector<announce_entry> m_urls;
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std::vector<std::string> m_url_seeds;
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std::vector<std::string> m_http_seeds;
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std::vector<sha1_hash> m_piece_hash;
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std::vector<sha1_hash> m_filehashes;
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// if we're generating a merkle torrent, this is the
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// merkle tree we got. This should be saved in fast-resume
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// in order to start seeding the torrent
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mutable std::vector<sha1_hash> m_merkle_tree;
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// dht nodes to add to the routing table/bootstrap from
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typedef std::vector<std::pair<std::string, int> > nodes_t;
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nodes_t m_nodes;
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// the hash that identifies this torrent
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// is mutable because it's calculated
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// lazily
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mutable sha1_hash m_info_hash;
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// if a creation date is found in the torrent file
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// this will be set to that, otherwise it'll be
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// 1970, Jan 1
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time_t m_creation_date;
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// if a comment is found in the torrent file
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// this will be set to that comment
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std::string m_comment;
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// an optional string naming the software used
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// to create the torrent file
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std::string m_created_by;
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// this is the root cert for SSL torrents
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std::string m_root_cert;
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// this is used when creating a torrent. If there's
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// only one file there are cases where it's impossible
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// to know if it should be written as a multifile torrent
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// or not. e.g. test/test there's one file and one directory
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// and they have the same name.
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bool m_multifile:1;
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// this is true if the torrent is private. i.e., is should not
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// be announced on the dht
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bool m_private:1;
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// if set to one, a merkle torrent will be generated
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bool m_merkle_torrent:1;
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// if set, include the 'mtime' modification time in the
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// torrent file
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bool m_include_mtime:1;
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// if set, symbolic links are declared as such in
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// the torrent file. The full data of the pointed-to
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// file is still included
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bool m_include_symlinks:1;
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// this is only used by set_piece_hashes(). It will
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// calculate sha1 hashes for each file and add it
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// to the file list
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bool m_calculate_file_hashes:1;
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};
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namespace detail
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{
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inline bool default_pred(std::string const&) { return true; }
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inline bool ignore_subdir(std::string const& leaf)
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{ return leaf == ".." || leaf == "."; }
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inline void nop(int i) {}
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int get_file_attributes(std::string const& p);
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std::string get_symlink_path(std::string const& p);
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TORRENT_EXPORT void add_files_impl(file_storage& fs, std::string const& p
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, std::string const& l, boost::function<bool(std::string)> pred
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, boost::uint32_t flags);
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}
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template <class Pred>
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void add_files(file_storage& fs, std::string const& file, Pred p, boost::uint32_t flags = 0)
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{
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detail::add_files_impl(fs, parent_path(complete(file)), filename(file), p, flags);
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}
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inline void add_files(file_storage& fs, std::string const& file, boost::uint32_t flags = 0)
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{
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detail::add_files_impl(fs, parent_path(complete(file)), filename(file)
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, detail::default_pred, flags);
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}
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TORRENT_EXPORT void set_piece_hashes(create_torrent& t, std::string const& p
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, boost::function<void(int)> f, error_code& ec);
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#ifndef BOOST_NO_EXCEPTIONS
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template <class Fun>
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void set_piece_hashes(create_torrent& t, std::string const& p, Fun f)
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{
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error_code ec;
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set_piece_hashes(t, p, f, ec);
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if (ec) throw libtorrent_exception(ec);
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}
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inline void set_piece_hashes(create_torrent& t, std::string const& p)
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{
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error_code ec;
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set_piece_hashes(t, p, detail::nop, ec);
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if (ec) throw libtorrent_exception(ec);
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}
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#endif
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inline void set_piece_hashes(create_torrent& t, std::string const& p, error_code& ec)
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{
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set_piece_hashes(t, p, detail::nop, ec);
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}
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#if TORRENT_USE_WSTRING
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// wstring versions
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template <class Pred>
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void add_files(file_storage& fs, std::wstring const& wfile, Pred p, boost::uint32_t flags = 0)
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{
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std::string utf8;
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wchar_utf8(wfile, utf8);
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detail::add_files_impl(fs, parent_path(complete(utf8))
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, filename(utf8), p, flags);
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}
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inline void add_files(file_storage& fs, std::wstring const& wfile, boost::uint32_t flags = 0)
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{
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std::string utf8;
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wchar_utf8(wfile, utf8);
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detail::add_files_impl(fs, parent_path(complete(utf8))
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, filename(utf8), detail::default_pred, flags);
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}
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void TORRENT_EXPORT set_piece_hashes(create_torrent& t, std::wstring const& p
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, boost::function<void(int)> const& f, error_code& ec);
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#ifndef BOOST_NO_EXCEPTIONS
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template <class Fun>
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void set_piece_hashes(create_torrent& t, std::wstring const& p, Fun f)
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{
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error_code ec;
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set_piece_hashes(t, p, f, ec);
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if (ec) throw libtorrent_exception(ec);
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}
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inline void set_piece_hashes(create_torrent& t, std::wstring const& p)
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{
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error_code ec;
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set_piece_hashes(t, p, detail::nop, ec);
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if (ec) throw libtorrent_exception(ec);
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}
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#endif
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inline void set_piece_hashes(create_torrent& t, std::wstring const& p, error_code& ec)
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{
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set_piece_hashes(t, p, detail::nop, ec);
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}
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#endif // TORRENT_USE_WPATH
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}
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#endif
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