pax_global_header00006660000000000000000000000064127665510550014526gustar00rootroot0000000000000052 comment=daeb2fd43795f0bb9a4861279b6064b35186ff25 btfs-2.12/000077500000000000000000000000001276655105500124105ustar00rootroot00000000000000btfs-2.12/.gitignore000066400000000000000000000002401276655105500143740ustar00rootroot00000000000000*.o btfs # generated files Makefile Makefile.in .deps /aclocal.m4 /autom4te.cache /compile /config.log /config.status /configure /depcomp /install-sh /missing btfs-2.12/LICENSE000066400000000000000000001045061276655105500134230ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. 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If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . btfs-2.12/Makefile.am000066400000000000000000000001241276655105500144410ustar00rootroot00000000000000AUTOMAKE_OPTIONS = foreign SUBDIRS = src scripts man EXTRA_DIST = LICENSE README.md btfs-2.12/README.md000066400000000000000000000037621276655105500136770ustar00rootroot00000000000000# BTFS (bittorrent filesystem) ## What is this? With BTFS, you can mount any **.torrent** file or **magnet link** and then use it as any read-only directory in your file tree. The contents of the files will be downloaded on-demand as they are read by applications. Tools like **ls**, **cat** and **cp** works as expected. Applications like **vlc** and **mplayer** can also work without changes. ## Example usage $ mkdir mnt $ btfs video.torrent mnt $ cd mnt $ vlc video.mp4 To unmount and shutdown: $ fusermount -u mnt ## Installing on a recent Ubuntu (Xenial, Wily, Vivid or Trusty) $ sudo add-apt-repository ppa:johang/btfs $ sudo apt-get update $ sudo apt-get install btfs ## Installing on Arch Linux $ sudo pacman -S btfs ## Installing on OS X BTFS has a formula in the [`homebrew/fuse`](https://github.com/Homebrew/homebrew-fuse) repository, ready to go. Just [install `brew`](https://brew.sh) if you hadn't, and then $ brew install homebrew/fuse/btfs ## Dependencies (on Linux) * fuse ("fuse" in Debian/Ubuntu) * libtorrent ("libtorrent-rasterbar7" in Debian/Ubuntu) * libcurl ("libcurl3" in Debian/Ubuntu) ## Building from git on a recent Debian/Ubuntu $ sudo apt-get install autoconf automake libfuse-dev libtorrent-rasterbar-dev libcurl4-openssl-dev g++ $ git clone https://github.com/johang/btfs.git btfs $ cd btfs $ autoreconf -i $ ./configure $ make And optionally, if you want to install it: $ sudo make install ## Building on OS X Use `brew` to get the dependencies and clone the project. $ brew install Caskroom/cask/osxfuse libtorrent-rasterbar autoconf automake pkg-config $ git clone https://github.com/johang/btfs.git btfs $ cd btfs Open the file `configure.ac` and replace `fuse >= 2.8.0` with `fuse >= 2.7.3` (**Only if you have the latest osxfuse version!**, see why on [pull request #5](https://github.com/johang/btfs/pull/5)). Then: $ autoreconf -i $ ./configure $ make $ sudo make install btfs-2.12/configure.ac000066400000000000000000000013071276655105500146770ustar00rootroot00000000000000AC_PREREQ([2.69]) AC_INIT(btfs, 2.12, johan.gunnarsson@gmail.com, btfs, https://github.com/johang/btfs) AC_CONFIG_SRCDIR([src/btfs.cc]) AM_INIT_AUTOMAKE # Checks for programs. AC_PROG_CXX AC_CONFIG_FILES([ man/Makefile ]) # Checks for libraries. PKG_CHECK_MODULES(FUSE, fuse >= 2.8.0) PKG_CHECK_MODULES(LIBTORRENT, libtorrent-rasterbar >= 0.16.0) PKG_CHECK_MODULES(LIBCURL, libcurl >= 7.22.0) # Checks for typedefs, structures, and compiler characteristics. AC_TYPE_OFF_T AC_TYPE_SIZE_T # Checks for library functions. AC_CHECK_FUNCS([memset mkdir realpath strdup]) # Check for unportable pthread_setname_np() AC_CHECK_LIB(pthread, pthread_setname_np) AC_OUTPUT(Makefile src/Makefile scripts/Makefile) btfs-2.12/man/000077500000000000000000000000001276655105500131635ustar00rootroot00000000000000btfs-2.12/man/Makefile.am000066400000000000000000000000271276655105500152160ustar00rootroot00000000000000dist_man_MANS = btfs.1 btfs-2.12/man/btfs.1000066400000000000000000000023111276655105500142000ustar00rootroot00000000000000.TH BTFS 1 .SH NAME btfs \- mount torrent files or magnet links as a file system .SH SYNOPSIS .B btfs [\fIoptions\fP] \fBmetadata\fP \fBmountpoint\fP .SH DESCRIPTION .B btfs allows one to mount any torrent file or a magnet link as a file system. The contents of the files will be downloaded on-demand as they are read by applications. .SH OPTIONS .TP \fB\-v\fR \fB\-\-version\fR print version .TP \fB\-h\fR \fB\-\-help\fR print help .TP \fB\-b\fR \fB\-\-browse-only\fR download metadata only .TP \fB\-k\fR \fB\-\-keep\fR keep files after unmount .TP \fB\-\-min-port=\fIPORT\fR start of listen port range .TP \fB\-\-max-port=\fIPORT\fR end of listen port range .TP \fB\-\-max-download-rate=\fIRATE\fR maximum download rate (in kilobytes per second) .TP \fB\-\-max-upload-rate=\fIRATE\fR maximum upload rate (in kilobytes per second) .SH EXAMPLES mounting a torrent file: btfs video.torrent ~/mnt mounting a magnet link: btfs 'magnet:?xt=urn:btih:...' ~/mnt unmounting: fusermount -u ~/mnt .SH BUGS Please report any bugs to https://github.com/johang/btfs. .PD .SH "AUTHORS" .LP BTFS has been written by Johan Gunnarsson .LP This man page was written by Donat Kh. btfs-2.12/scripts/000077500000000000000000000000001276655105500140775ustar00rootroot00000000000000btfs-2.12/scripts/Makefile.am000066400000000000000000000000321276655105500161260ustar00rootroot00000000000000dist_bin_SCRIPTS = btplay btfs-2.12/scripts/btplay000077500000000000000000000046031276655105500153230ustar00rootroot00000000000000#!/usr/bin/env python # copyright 2015 johan gunnarsson from __future__ import print_function import sys import os import os.path import tempfile import shutil import time import subprocess import argparse extensions = ("mp4", "m4v", "mkv", "avi", "mpg", "mpeg", "flv", "webm") players = (("omxplayer", "--timeout", "60"), ("vlc", "--file-caching", "10000"), ("mpv", ), ("mplayer", )) def which(x): for d in os.getenv("PATH", "").split(":"): if os.path.exists(os.path.join(d, x)): return os.path.join(d, x) def find_player(players): for player in players: if which(player[0]): return player def find_files(filepath): for dirpath, dnames, fnames in os.walk(filepath): for f in fnames: yield os.path.join(dirpath, f) def is_sample(filename): return "sample" in os.path.basename(filename).lower() def is_video(filename): return any(filename.lower().endswith(i) for i in extensions) def exit(tempdir, status): shutil.rmtree(tempdir) sys.exit(status) def main(): parser = argparse.ArgumentParser() parser.add_argument("-p", "--player", action="store", help="player to launch") parser.add_argument("URI", action="store", help="magnet link or HTTP metadata URL to play") args = parser.parse_args() player = find_player([args.player.split()] if args.player else players) if not player: print("Could not find a player", file=sys.stderr) sys.exit(1) mountpoint = tempfile.mkdtemp(prefix="btplay-") failed = subprocess.call(["btfs", args.URI, mountpoint]) if failed: exit(mountpoint, failed) try: while not os.listdir(mountpoint): time.sleep(0.25) media = sorted(i for i in find_files(mountpoint) if not is_sample(i) and is_video(i)) if media: status = subprocess.call(list(player) + media) else: print("No video media found", file=sys.stderr) status = 3 except KeyboardInterrupt: status = 1 except Exception as e: print("Error:", e, file=sys.stderr) status = 2 finally: subprocess.call(["fusermount", "-z", "-u", mountpoint]) exit(mountpoint, status) if __name__ == '__main__': main() btfs-2.12/src/000077500000000000000000000000001276655105500131775ustar00rootroot00000000000000btfs-2.12/src/Makefile.am000066400000000000000000000004071276655105500152340ustar00rootroot00000000000000bin_PROGRAMS = btfs btfs_SOURCES = btfs.cc btfs.h btfs_CPPFLAGS = -Wall -Wextra -Wconversion -Wsign-compare -Wsign-conversion -Wno-unused-parameter $(FUSE_CFLAGS) $(LIBTORRENT_CFLAGS) $(LIBCURL_CFLAGS) btfs_LDADD = $(FUSE_LIBS) $(LIBTORRENT_LIBS) $(LIBCURL_LIBS) btfs-2.12/src/btfs.cc000066400000000000000000000517531276655105500144570ustar00rootroot00000000000000/* Copyright 2015 Johan Gunnarsson This file is part of BTFS. BTFS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. BTFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with BTFS. If not, see . */ #define FUSE_USE_VERSION 26 #include #include #include #include #include #include #include // The below pragma lines will silence lots of compiler warnings in the // libtorrent headers file. Not btfs' fault. #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wsign-conversion" #pragma GCC diagnostic ignored "-Wconversion" #include #include #include #include #include #include #include #pragma GCC diagnostic pop #include #include "btfs.h" #define RETV(s, v) { s; return v; }; #define STRINGIFY(s) #s using namespace btfs; libtorrent::session *session = NULL; libtorrent::torrent_handle handle; pthread_t alert_thread; std::list reads; // First piece index of the current sliding window int cursor; std::map files; std::map > dirs; pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; pthread_cond_t signal_cond = PTHREAD_COND_INITIALIZER; // Time used as "last modified" time time_t time_of_mount; static struct btfs_params params; static bool move_to_next_unfinished(int& piece, int num_pieces) { for (; piece < num_pieces; piece++) { if (!handle.have_piece(piece)) return true; } return false; } static void jump(int piece, int size) { #if LIBTORRENT_VERSION_NUM < 10000 libtorrent::torrent_info ti = handle.get_torrent_info(); #else libtorrent::torrent_info ti = *handle.torrent_file(); #endif int tail = piece; if (!move_to_next_unfinished(tail, ti.num_pieces())) return; cursor = tail; int pl = ti.piece_length(); for (int b = 0; b < 16 * pl; b += pl) { handle.piece_priority(tail++, 7); } for (int o = (tail - piece) * pl; o < size + pl - 1; o += pl) { handle.piece_priority(tail++, 1); } } static void advance() { jump(cursor, 0); } Read::Read(char *buf, int index, off_t offset, size_t size) { #if LIBTORRENT_VERSION_NUM < 10000 libtorrent::torrent_info ti = handle.get_torrent_info(); #else libtorrent::torrent_info ti = *handle.torrent_file(); #endif #if LIBTORRENT_VERSION_NUM < 10100 int64_t file_size = ti.file_at(index).size; #else int64_t file_size = ti.files().file_size(index); #endif while (size > 0 && offset < file_size) { libtorrent::peer_request part = ti.map_file(index, offset, (int) size); part.length = std::min( ti.piece_size(part.piece) - part.start, part.length); parts.push_back(Part(part, buf)); size -= (size_t) part.length; offset += part.length; buf += part.length; } } void Read::copy(int piece, char *buffer, int size) { for (parts_iter i = parts.begin(); i != parts.end(); ++i) { if (i->part.piece == piece && !i->filled) i->filled = (memcpy(i->buf, buffer + i->part.start, (size_t) i->part.length)) != NULL; } } void Read::trigger() { for (parts_iter i = parts.begin(); i != parts.end(); ++i) { if (handle.have_piece(i->part.piece)) handle.read_piece(i->part.piece); } } bool Read::finished() { for (parts_iter i = parts.begin(); i != parts.end(); ++i) { if (!i->filled) return false; } return true; } int Read::size() { int s = 0; for (parts_iter i = parts.begin(); i != parts.end(); ++i) { s += i->part.length; } return s; } int Read::read() { if (size() <= 0) return 0; // Trigger reads of finished pieces trigger(); // Move sliding window to first piece to serve this request jump(parts.front().part.piece, size()); while (!finished()) // Wait for any piece to downloaded pthread_cond_wait(&signal_cond, &lock); return size(); } static void setup() { printf("Got metadata. Now ready to start downloading.\n"); #if LIBTORRENT_VERSION_NUM < 10000 libtorrent::torrent_info ti = handle.get_torrent_info(); #else libtorrent::torrent_info ti = *handle.torrent_file(); #endif if (params.browse_only) handle.pause(); for (int i = 0; i < ti.num_files(); ++i) { // Initially, don't download anything handle.file_priority(i, 0); std::string parent(""); #if LIBTORRENT_VERSION_NUM < 10100 char *p = strdup(ti.file_at(i).path.c_str()); #else char *p = strdup(ti.files().file_path(i).c_str()); #endif for (char *x = strtok(p, "/"); x; x = strtok(NULL, "/")) { if (strlen(x) <= 0) continue; if (parent.length() <= 0) // Root dir <-> children mapping dirs["/"].insert(x); else // Non-root dir <-> children mapping dirs[parent].insert(x); parent += "/"; parent += x; } free(p); // Path <-> file index mapping #if LIBTORRENT_VERSION_NUM < 10100 files["/" + ti.file_at(i).path] = i; #else files["/" + ti.files().file_path(i)] = i; #endif } } static void handle_read_piece_alert(libtorrent::read_piece_alert *a, Log *log) { printf("%s: piece %d size %d\n", __func__, a->piece, a->size); pthread_mutex_lock(&lock); for (reads_iter i = reads.begin(); i != reads.end(); ++i) { (*i)->copy(a->piece, a->buffer.get(), a->size); } pthread_mutex_unlock(&lock); // Wake up all threads waiting for download pthread_cond_broadcast(&signal_cond); } static void handle_piece_finished_alert(libtorrent::piece_finished_alert *a, Log *log) { printf("%s: %d\n", __func__, a->piece_index); pthread_mutex_lock(&lock); for (reads_iter i = reads.begin(); i != reads.end(); ++i) { (*i)->trigger(); } // Advance sliding window advance(); pthread_mutex_unlock(&lock); } static void handle_torrent_added_alert(libtorrent::torrent_added_alert *a, Log *log) { //printf("%s()\n", __func__); pthread_mutex_lock(&lock); handle = a->handle; if (a->handle.status(0).has_metadata) setup(); pthread_mutex_unlock(&lock); } static void handle_metadata_received_alert(libtorrent::metadata_received_alert *a, Log *log) { //printf("%s\n", __func__); pthread_mutex_lock(&lock); handle = a->handle; setup(); pthread_mutex_unlock(&lock); } static void handle_alert(libtorrent::alert *a, Log *log) { switch (a->type()) { case libtorrent::read_piece_alert::alert_type: handle_read_piece_alert( (libtorrent::read_piece_alert *) a, log); break; case libtorrent::piece_finished_alert::alert_type: *log << a->message() << std::endl; handle_piece_finished_alert( (libtorrent::piece_finished_alert *) a, log); break; case libtorrent::metadata_received_alert::alert_type: *log << a->message() << std::endl; handle_metadata_received_alert( (libtorrent::metadata_received_alert *) a, log); break; case libtorrent::torrent_added_alert::alert_type: *log << a->message() << std::endl; handle_torrent_added_alert( (libtorrent::torrent_added_alert *) a, log); break; case libtorrent::metadata_failed_alert::alert_type: case libtorrent::tracker_announce_alert::alert_type: case libtorrent::tracker_reply_alert::alert_type: case libtorrent::tracker_warning_alert::alert_type: case libtorrent::tracker_error_alert::alert_type: case libtorrent::dht_bootstrap_alert::alert_type: case libtorrent::dht_announce_alert::alert_type: case libtorrent::dht_reply_alert::alert_type: case libtorrent::lsd_peer_alert::alert_type: *log << a->message() << std::endl; break; case libtorrent::stats_alert::alert_type: //*log << a->message() << std::endl; break; default: break; } #if LIBTORRENT_VERSION_NUM < 10100 delete a; #endif } static void alert_queue_loop_destroy(void *data) { Log *log = (Log *) data; if (log) delete log; } static void* alert_queue_loop(void *data) { int oldstate, oldtype; pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &oldstate); pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &oldtype); pthread_cleanup_push(&alert_queue_loop_destroy, data); while (1) { if (!session->wait_for_alert(libtorrent::seconds(1))) continue; #if LIBTORRENT_VERSION_NUM < 10100 std::deque alerts; session->pop_alerts(&alerts); for (std::deque::iterator i = alerts.begin(); i != alerts.end(); ++i) { handle_alert(*i, (Log *) data); } #else std::vector alerts; session->pop_alerts(&alerts); for (std::vector::iterator i = alerts.begin(); i != alerts.end(); ++i) { handle_alert(*i, (Log *) data); } #endif } pthread_cleanup_pop(1); return NULL; } static bool is_dir(const char *path) { return dirs.find(path) != dirs.end(); } static bool is_file(const char *path) { return files.find(path) != files.end(); } static int btfs_getattr(const char *path, struct stat *stbuf) { if (!is_dir(path) && !is_file(path) && strcmp(path, "/") != 0) return -ENOENT; pthread_mutex_lock(&lock); memset(stbuf, 0, sizeof (*stbuf)); stbuf->st_uid = getuid(); stbuf->st_gid = getgid(); stbuf->st_mtime = time_of_mount; if (strcmp(path, "/") == 0 || is_dir(path)) { stbuf->st_mode = S_IFDIR | 0755; } else { #if LIBTORRENT_VERSION_NUM < 10000 libtorrent::torrent_info ti = handle.get_torrent_info(); #else libtorrent::torrent_info ti = *handle.torrent_file(); #endif #if LIBTORRENT_VERSION_NUM < 10100 int64_t file_size = ti.file_at(files[path]).size; #else int64_t file_size = ti.files().file_size(files[path]); #endif stbuf->st_mode = S_IFREG | 0444; stbuf->st_size = file_size; } pthread_mutex_unlock(&lock); return 0; } static int btfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) { if (!is_dir(path) && !is_file(path) && strcmp(path, "/") != 0) return -ENOENT; if (is_file(path)) return -ENOTDIR; pthread_mutex_lock(&lock); filler(buf, ".", NULL, 0); filler(buf, "..", NULL, 0); for (std::set::iterator i = dirs[path].begin(); i != dirs[path].end(); ++i) { filler(buf, i->c_str(), NULL, 0); } pthread_mutex_unlock(&lock); return 0; } static int btfs_open(const char *path, struct fuse_file_info *fi) { if (!is_dir(path) && !is_file(path)) return -ENOENT; if (is_dir(path)) return -EISDIR; if ((fi->flags & 3) != O_RDONLY) return -EACCES; return 0; } static int btfs_read(const char *path, char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { //printf("%s: %s %lu %ld\n", __func__, path, size, offset); if (!is_dir(path) && !is_file(path)) return -ENOENT; if (is_dir(path)) return -EISDIR; if (params.browse_only) return -EACCES; pthread_mutex_lock(&lock); Read *r = new Read(buf, files[path], offset, size); reads.push_back(r); // Wait for read to finish int s = r->read(); reads.remove(r); delete r; pthread_mutex_unlock(&lock); return s; } static void * btfs_init(struct fuse_conn_info *conn) { pthread_mutex_lock(&lock); time_of_mount = time(NULL); libtorrent::add_torrent_params *p = (libtorrent::add_torrent_params *) fuse_get_context()->private_data; int flags = libtorrent::session::add_default_plugins | libtorrent::session::start_default_features; int alerts = libtorrent::alert::tracker_notification | libtorrent::alert::stats_notification | libtorrent::alert::storage_notification | libtorrent::alert::progress_notification | libtorrent::alert::status_notification | libtorrent::alert::error_notification | libtorrent::alert::dht_notification | libtorrent::alert::peer_notification; #if LIBTORRENT_VERSION_NUM < 10100 session = new libtorrent::session( libtorrent::fingerprint( "LT", LIBTORRENT_VERSION_MAJOR, LIBTORRENT_VERSION_MINOR, 0, 0), std::make_pair(params.min_port, params.max_port), "0.0.0.0", flags, alerts); libtorrent::session_settings se = session->settings(); se.strict_end_game_mode = false; se.announce_to_all_trackers = true; se.announce_to_all_tiers = true; se.download_rate_limit = params.max_download_rate * 1024; se.upload_rate_limit = params.max_upload_rate * 1024; session->set_settings(se); session->add_dht_router(std::make_pair("router.bittorrent.com", 6881)); session->add_dht_router(std::make_pair("router.utorrent.com", 6881)); session->add_dht_router(std::make_pair("dht.transmissionbt.com", 6881)); session->async_add_torrent(*p); #else libtorrent::settings_pack pack; std::ostringstream interfaces; // First port interfaces << "0.0.0.0:" << params.min_port; // Possibly more ports, but at most 5 for (int i = params.min_port + 1; i <= params.max_port && i < params.min_port + 5; i++) interfaces << ",0.0.0.0:" << i; std::string fingerprint = "LT" STRINGIFY(LIBTORRENT_VERSION_MAJOR) STRINGIFY(LIBTORRENT_VERSION_MINOR) "00"; pack.set_str(pack.listen_interfaces, interfaces.str()); pack.set_bool(pack.strict_end_game_mode, false); pack.set_bool(pack.announce_to_all_trackers, true); pack.set_bool(pack.announce_to_all_tiers, true); pack.set_int(pack.download_rate_limit, params.max_download_rate * 1024); pack.set_int(pack.upload_rate_limit, params.max_upload_rate * 1024); pack.set_int(pack.alert_mask, alerts); session = new libtorrent::session(pack, flags); session->add_dht_router(std::make_pair("router.bittorrent.com", 6881)); session->add_dht_router(std::make_pair("router.utorrent.com", 6881)); session->add_dht_router(std::make_pair("dht.transmissionbt.com", 6881)); session->add_torrent(*p); #endif pthread_create(&alert_thread, NULL, alert_queue_loop, new Log(p->save_path + "/../log.txt")); #ifdef HAVE_PTHREAD_SETNAME_NP pthread_setname_np(alert_thread, "alert"); #endif pthread_mutex_unlock(&lock); return NULL; } static void btfs_destroy(void *user_data) { pthread_mutex_lock(&lock); pthread_cancel(alert_thread); pthread_join(alert_thread, NULL); session->remove_torrent(handle, params.keep ? 0 : libtorrent::session::delete_files); delete session; pthread_mutex_unlock(&lock); } static bool populate_target(std::string& target, char *arg) { std::string templ; if (arg) { templ += arg; } else if (getenv("HOME")) { templ += getenv("HOME"); templ += "/btfs"; } else { templ += "/tmp/btfs"; } if (mkdir(templ.c_str(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH) < 0) { if (errno != EEXIST) RETV(perror("Failed to create target"), false); } templ += "/btfs-XXXXXX"; char *s = strdup(templ.c_str()); if (mkdtemp(s) != NULL) { char *x = realpath(s, NULL); if (x) target = x; else perror("Failed to expand target"); free(x); } else { perror("Failed to generate target"); } free(s); return target.length() > 0; } static size_t handle_http(void *contents, size_t size, size_t nmemb, void *userp) { Array *output = (Array *) userp; // Offset into buffer to write to size_t off = output->size; output->expand(nmemb * size); memcpy(output->buf + off, contents, nmemb * size); // Must return number of bytes copied return nmemb * size; } static bool populate_metadata(libtorrent::add_torrent_params& p, const char *arg) { std::string uri(arg); if (uri.find("http:") == 0 || uri.find("https:") == 0) { Array output; CURL *ch = curl_easy_init(); curl_easy_setopt(ch, CURLOPT_URL, uri.c_str()); curl_easy_setopt(ch, CURLOPT_WRITEFUNCTION, handle_http); curl_easy_setopt(ch, CURLOPT_WRITEDATA, (void *) &output); curl_easy_setopt(ch, CURLOPT_USERAGENT, "btfs/" VERSION); curl_easy_setopt(ch, CURLOPT_FOLLOWLOCATION, 1); CURLcode res = curl_easy_perform(ch); if(res != CURLE_OK) RETV(fprintf(stderr, "Download metadata failed: %s\n", curl_easy_strerror(res)), false); curl_easy_cleanup(ch); libtorrent::error_code ec; #if LIBTORRENT_VERSION_NUM < 10100 p.ti = new libtorrent::torrent_info((const char *) output.buf, (int) output.size, ec); #else p.ti = boost::make_shared( (const char *) output.buf, (int) output.size, boost::ref(ec)); #endif if (ec) RETV(fprintf(stderr, "Parse metadata failed: %s\n", ec.message().c_str()), false); if (params.browse_only) p.flags |= libtorrent::add_torrent_params::flag_paused; } else if (uri.find("magnet:") == 0) { libtorrent::error_code ec; parse_magnet_uri(uri, p, ec); if (ec) RETV(fprintf(stderr, "Parse magnet failed: %s\n", ec.message().c_str()), false); } else { char *r = realpath(uri.c_str(), NULL); if (!r) RETV(perror("Find metadata failed"), false); libtorrent::error_code ec; #if LIBTORRENT_VERSION_NUM < 10100 p.ti = new libtorrent::torrent_info(r, ec); #else p.ti = boost::make_shared(r, boost::ref(ec)); #endif free(r); if (ec) RETV(fprintf(stderr, "Parse metadata failed: %s\n", ec.message().c_str()), false); if (params.browse_only) p.flags |= libtorrent::add_torrent_params::flag_paused; } return true; } #define BTFS_OPT(t, p, v) { t, offsetof(struct btfs_params, p), v } static const struct fuse_opt btfs_opts[] = { BTFS_OPT("-v", version, 1), BTFS_OPT("--version", version, 1), BTFS_OPT("-h", help, 1), BTFS_OPT("--help", help, 1), BTFS_OPT("-b", browse_only, 1), BTFS_OPT("--browse-only", browse_only, 1), BTFS_OPT("-k", keep, 1), BTFS_OPT("--keep", keep, 1), BTFS_OPT("--min-port=%lu", min_port, 4), BTFS_OPT("--max-port=%lu", max_port, 4), BTFS_OPT("--max-download-rate=%lu", max_download_rate, 4), BTFS_OPT("--max-upload-rate=%lu", max_upload_rate, 4), FUSE_OPT_END }; static int btfs_process_arg(void *data, const char *arg, int key, struct fuse_args *outargs) { // Number of NONOPT options so far static int n = 0; struct btfs_params *params = (struct btfs_params *) data; if (key == FUSE_OPT_KEY_NONOPT) { if (n++ == 0) params->metadata = arg; return n <= 1 ? 0 : 1; } return 1; } static void print_help() { printf("usage: " PACKAGE " [options] metadata mountpoint\n"); printf("\n"); printf("btfs options:\n"); printf(" --version -v show version information\n"); printf(" --help -h show this message\n"); printf(" --browse-only -b download metadata only\n"); printf(" --keep -k keep files after unmount\n"); printf(" --min-port=N start of listen port range\n"); printf(" --max-port=N end of listen port range\n"); printf(" --max-download-rate=N max download rate (in kB/s)\n"); printf(" --max-upload-rate=N max upload rate (in kB/s)\n"); printf("\n"); } int main(int argc, char *argv[]) { struct fuse_operations btfs_ops; memset(&btfs_ops, 0, sizeof (btfs_ops)); btfs_ops.getattr = btfs_getattr; btfs_ops.readdir = btfs_readdir; btfs_ops.open = btfs_open; btfs_ops.read = btfs_read; btfs_ops.init = btfs_init; btfs_ops.destroy = btfs_destroy; struct fuse_args args = FUSE_ARGS_INIT(argc, argv); if (fuse_opt_parse(&args, ¶ms, btfs_opts, btfs_process_arg)) RETV(fprintf(stderr, "Failed to parse options\n"), -1); if (!params.metadata) params.help = 1; if (params.version) { printf(PACKAGE " version: " VERSION "\n"); printf("libtorrent version: " LIBTORRENT_VERSION "\n"); // Let FUSE print more versions fuse_opt_add_arg(&args, "--version"); fuse_main(args.argc, args.argv, &btfs_ops, NULL); return 0; } if (params.help) { print_help(); // Let FUSE print more help fuse_opt_add_arg(&args, "-ho"); fuse_main(args.argc, args.argv, &btfs_ops, NULL); return 0; } if (params.min_port == 0 && params.max_port == 0) { // Default ports are the standard Bittorrent range params.min_port = 6881; params.max_port = 6889; } else if (params.min_port == 0) { params.min_port = 1024; } else if (params.max_port == 0) { params.max_port = 65535; } if (params.min_port > params.max_port) RETV(fprintf(stderr, "Invalid port range\n"), -1); std::string target; if (!populate_target(target, NULL)) return -1; libtorrent::add_torrent_params p; p.flags &= ~libtorrent::add_torrent_params::flag_auto_managed; p.flags &= ~libtorrent::add_torrent_params::flag_paused; p.save_path = target + "/files"; if (mkdir(p.save_path.c_str(), 0777) < 0) RETV(perror("Failed to create files directory"), -1); curl_global_init(CURL_GLOBAL_ALL); if (!populate_metadata(p, params.metadata)) return -1; fuse_main(args.argc, args.argv, &btfs_ops, (void *) &p); curl_global_cleanup(); if (!params.keep) { if (rmdir(p.save_path.c_str())) RETV(perror("Failed to remove files directory"), -1); if (rmdir(target.c_str())) RETV(perror("Failed to remove target directory"), -1); } return 0; } btfs-2.12/src/btfs.h000066400000000000000000000037731276655105500143200ustar00rootroot00000000000000/* Copyright 2015 Johan Gunnarsson This file is part of BTFS. BTFS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. BTFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with BTFS. If not, see . */ #ifndef BTFS_H #define BTFS_H #include namespace btfs { class Part; class Read; typedef std::vector::iterator parts_iter; typedef std::list::iterator reads_iter; class Part { friend class Read; public: Part(libtorrent::peer_request p, char *b) : part(p), buf(b), filled(false) { } private: libtorrent::peer_request part; char *buf; bool filled; }; class Read { public: Read(char *buf, int index, off_t offset, size_t size); void copy(int piece, char *buffer, int size); void trigger(); bool finished(); int size(); int read(); private: std::vector parts; }; class Array { public: Array() : buf(0), size(0) { } ~Array() { free(buf); } bool expand(size_t n) { return (buf = (char *) realloc((void *) buf, size += n)) != NULL; } char *buf; size_t size; }; class Log : public std::ofstream { public: Log(std::string p) : std::ofstream(p.c_str()), path(p) { if (!is_open()) // If open log file fails, write to a dummy file open("/dev/null"); } ~Log() { close(); if (remove(path.c_str())) perror("Failed to remove log"); } private: std::string path; }; struct btfs_params { int version; int help; int browse_only; int keep; int min_port; int max_port; int max_download_rate; int max_upload_rate; const char *metadata; }; } #endif