forked from premiere/premiere-libtorrent
306 lines
9.3 KiB
C++
306 lines
9.3 KiB
C++
/*
|
|
|
|
Copyright (c) 2008, Arvid Norberg
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the distribution.
|
|
* Neither the name of the author nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
#ifndef TORRENT_CREATE_TORRENT_HPP_INCLUDED
|
|
#define TORRENT_CREATE_TORRENT_HPP_INCLUDED
|
|
|
|
#include "libtorrent/bencode.hpp"
|
|
#include "libtorrent/peer_id.hpp"
|
|
#include "libtorrent/file_storage.hpp"
|
|
#include "libtorrent/file_pool.hpp"
|
|
#include "libtorrent/config.hpp"
|
|
#include "libtorrent/storage.hpp"
|
|
#include "libtorrent/hasher.hpp"
|
|
#include "libtorrent/utf8.hpp"
|
|
#include "libtorrent/allocator.hpp"
|
|
|
|
#include <vector>
|
|
#include <string>
|
|
#include <utility>
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(push, 1)
|
|
#endif
|
|
|
|
#include <boost/filesystem/path.hpp>
|
|
#include <boost/filesystem/operations.hpp>
|
|
#include <boost/optional.hpp>
|
|
#include <boost/date_time/posix_time/posix_time.hpp>
|
|
#include <boost/scoped_ptr.hpp>
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
namespace libtorrent
|
|
{
|
|
namespace fs = boost::filesystem;
|
|
namespace pt = boost::posix_time;
|
|
class torrent_info;
|
|
|
|
struct TORRENT_EXPORT create_torrent
|
|
{
|
|
enum { optimize = 1, merkle = 2 };
|
|
|
|
create_torrent(file_storage& fs, int piece_size = 0
|
|
, int pad_file_limit = -1, int flags = optimize);
|
|
create_torrent(torrent_info const& ti);
|
|
entry generate() const;
|
|
|
|
file_storage const& files() const { return m_files; }
|
|
|
|
void set_comment(char const* str);
|
|
void set_creator(char const* str);
|
|
void set_hash(int index, sha1_hash const& h);
|
|
void add_url_seed(std::string const& url);
|
|
void add_node(std::pair<std::string, int> const& node);
|
|
void add_tracker(std::string const& url, int tier = 0);
|
|
void set_priv(bool p) { m_private = p; }
|
|
|
|
int num_pieces() const { return m_files.num_pieces(); }
|
|
int piece_length() const { return m_files.piece_length(); }
|
|
int piece_size(int i) const { return m_files.piece_size(i); }
|
|
bool priv() const { return m_private; }
|
|
|
|
private:
|
|
|
|
file_storage& m_files;
|
|
// if m_info_dict is initialized, it is
|
|
// used instead of m_files to generate
|
|
// the info dictionary
|
|
entry m_info_dict;
|
|
|
|
// the urls to the trackers
|
|
typedef std::pair<std::string, int> announce_entry;
|
|
std::vector<announce_entry> m_urls;
|
|
|
|
std::vector<std::string> m_url_seeds;
|
|
|
|
std::vector<sha1_hash> m_piece_hash;
|
|
|
|
// dht nodes to add to the routing table/bootstrap from
|
|
typedef std::vector<std::pair<std::string, int> > nodes_t;
|
|
nodes_t m_nodes;
|
|
|
|
// the hash that identifies this torrent
|
|
// is mutable because it's calculated
|
|
// lazily
|
|
mutable sha1_hash m_info_hash;
|
|
|
|
// if a creation date is found in the torrent file
|
|
// this will be set to that, otherwise it'll be
|
|
// 1970, Jan 1
|
|
pt::ptime m_creation_date;
|
|
|
|
// if a comment is found in the torrent file
|
|
// this will be set to that comment
|
|
std::string m_comment;
|
|
|
|
// an optional string naming the software used
|
|
// to create the torrent file
|
|
std::string m_created_by;
|
|
|
|
// this is used when creating a torrent. If there's
|
|
// only one file there are cases where it's impossible
|
|
// to know if it should be written as a multifile torrent
|
|
// or not. e.g. test/test there's one file and one directory
|
|
// and they have the same name.
|
|
bool m_multifile:1;
|
|
|
|
// this is true if the torrent is private. i.e., is should not
|
|
// be announced on the dht
|
|
bool m_private:1;
|
|
|
|
// if set to one, a merkle torrent will be generated
|
|
bool m_merkle_torrent:1;
|
|
};
|
|
|
|
namespace detail
|
|
{
|
|
inline bool default_pred(boost::filesystem::path const&) { return true; }
|
|
inline bool wdefault_pred(boost::filesystem::wpath const&) { return true; }
|
|
|
|
inline bool ignore_subdir(std::string const& leaf)
|
|
{ return leaf == ".." || leaf == "."; }
|
|
|
|
inline bool ignore_subdir(std::wstring const& leaf)
|
|
{ return leaf == L".." || leaf == L"."; }
|
|
|
|
inline void nop(int i) {}
|
|
|
|
int TORRENT_EXPORT get_file_attributes(boost::filesystem::path const& p);
|
|
int TORRENT_EXPORT get_file_attributes(boost::filesystem::wpath const& p);
|
|
|
|
template <class Pred, class Str, class PathTraits>
|
|
void add_files_impl(file_storage& fs, boost::filesystem::basic_path<Str, PathTraits> const& p
|
|
, boost::filesystem::basic_path<Str, PathTraits> const& l, Pred pred)
|
|
{
|
|
using boost::filesystem::basic_path;
|
|
using boost::filesystem::basic_directory_iterator;
|
|
#if BOOST_VERSION < 103600
|
|
Str const& leaf = l.leaf();
|
|
#else
|
|
Str const& leaf = l.filename();
|
|
#endif
|
|
if (ignore_subdir(leaf)) return;
|
|
if (!pred(l)) return;
|
|
basic_path<Str, PathTraits> f(p / l);
|
|
if (is_directory(f))
|
|
{
|
|
for (basic_directory_iterator<basic_path<Str, PathTraits> > i(f), end; i != end; ++i)
|
|
#if BOOST_VERSION < 103600
|
|
add_files_impl(fs, p, l / i->path().leaf(), pred);
|
|
#else
|
|
add_files_impl(fs, p, l / i->path().filename(), pred);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
int file_flags = get_file_attributes(f);
|
|
fs.add_file(l, file_size(f), file_flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
// path versions
|
|
|
|
template <class Pred>
|
|
void add_files(file_storage& fs, boost::filesystem::path const& file, Pred p)
|
|
{
|
|
using boost::filesystem::path;
|
|
#if BOOST_VERSION < 103600
|
|
detail::add_files_impl(fs, complete(file).branch_path(), path(file.leaf()), p);
|
|
#else
|
|
detail::add_files_impl(fs, complete(file).parent_path(), path(file.filename()), p);
|
|
#endif
|
|
}
|
|
|
|
inline void add_files(file_storage& fs, boost::filesystem::path const& file)
|
|
{
|
|
using boost::filesystem::path;
|
|
#if BOOST_VERSION < 103600
|
|
detail::add_files_impl(fs, complete(file).branch_path(), path(file.leaf()), detail::default_pred);
|
|
#else
|
|
detail::add_files_impl(fs, complete(file).parent_path(), path(file.filename()), detail::default_pred);
|
|
#endif
|
|
}
|
|
|
|
struct piece_holder
|
|
{
|
|
piece_holder(int bytes): m_piece(page_aligned_allocator::malloc(bytes)) {}
|
|
~piece_holder() { page_aligned_allocator::free(m_piece); }
|
|
char* bytes() { return m_piece; }
|
|
private:
|
|
char* m_piece;
|
|
};
|
|
|
|
template <class Fun>
|
|
void set_piece_hashes(create_torrent& t, boost::filesystem::path const& p, Fun f)
|
|
{
|
|
file_pool fp;
|
|
boost::scoped_ptr<storage_interface> st(
|
|
default_storage_constructor(const_cast<file_storage&>(t.files()), p, fp));
|
|
|
|
// calculate the hash for all pieces
|
|
int num = t.num_pieces();
|
|
piece_holder buf(t.piece_length());
|
|
for (int i = 0; i < num; ++i)
|
|
{
|
|
// read hits the disk and will block. Progress should
|
|
// be updated in between reads
|
|
st->read(buf.bytes(), i, 0, t.piece_size(i));
|
|
hasher h(buf.bytes(), t.piece_size(i));
|
|
t.set_hash(i, h.final());
|
|
f(i);
|
|
}
|
|
}
|
|
|
|
inline void set_piece_hashes(create_torrent& t, boost::filesystem::path const& p)
|
|
{
|
|
set_piece_hashes(t, p, detail::nop);
|
|
}
|
|
|
|
// wpath versions
|
|
|
|
template <class Pred>
|
|
void add_files(file_storage& fs, boost::filesystem::wpath const& file, Pred p)
|
|
{
|
|
using boost::filesystem::wpath;
|
|
#if BOOST_VERSION < 103600
|
|
detail::add_files_impl(fs, complete(file).branch_path(), wpath(file.leaf()), p);
|
|
#else
|
|
detail::add_files_impl(fs, complete(file).parent_path(), wpath(file.filename()), p);
|
|
#endif
|
|
}
|
|
|
|
inline void add_files(file_storage& fs, boost::filesystem::wpath const& file)
|
|
{
|
|
using boost::filesystem::wpath;
|
|
#if BOOST_VERSION < 103600
|
|
detail::add_files_impl(fs, complete(file).branch_path(), wpath(file.leaf()), detail::wdefault_pred);
|
|
#else
|
|
detail::add_files_impl(fs, complete(file).parent_path(), wpath(file.filename()), detail::wdefault_pred);
|
|
#endif
|
|
}
|
|
|
|
template <class Fun>
|
|
void set_piece_hashes(create_torrent& t, boost::filesystem::wpath const& p, Fun f)
|
|
{
|
|
file_pool fp;
|
|
std::string utf8;
|
|
wchar_utf8(p.string(), utf8);
|
|
boost::scoped_ptr<storage_interface> st(
|
|
default_storage_constructor(const_cast<file_storage&>(t.files()), utf8, fp));
|
|
|
|
// calculate the hash for all pieces
|
|
int num = t.num_pieces();
|
|
std::vector<char> buf(t.piece_length());
|
|
for (int i = 0; i < num; ++i)
|
|
{
|
|
// read hits the disk and will block. Progress should
|
|
// be updated in between reads
|
|
st->read(&buf[0], i, 0, t.piece_size(i));
|
|
hasher h(&buf[0], t.piece_size(i));
|
|
t.set_hash(i, h.final());
|
|
f(i);
|
|
}
|
|
}
|
|
|
|
inline void set_piece_hashes(create_torrent& t, boost::filesystem::wpath const& p)
|
|
{
|
|
set_piece_hashes(t, p, detail::nop);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|