0.1.7 • Published 9 years ago

libtorrent-nodewrap v0.1.7

Weekly downloads
3
License
Public domain
Repository
github
Last release
9 years ago

libtorrent-nodewrap

============

Port of Libtorrent to javascript Node.js.

Documentation

Overview

The primary goal of this project is to compile and wrap some of major functions of Libtorrent to the Node.js library with node-ffi.

System requirements

Libtorrent-nodewrap.js currently just supports for Linux and OSx. (We're trying to build it to support on Windows OS):

Other systems:

  • Node.js (we test on 0.10 and later)
  • g++: Install g++ to compile C++ code
  • node-gyp: native addon build tool

Installation

You can install libtorrent-nodewrap via a package manager:

NPM:

$ npm install libtorrent-nodewrap

or download source code.

  • NOTE: When you want to use with node-webkit version, please install nw-gyp and run nw-gyp rebuild -target=<version of nw> inside folders node_modules/ffi and node_modules/ref

Usage

#####Session:

  • new_session(): Initialize a libtorrent session and return a pointer of that session to node.js.
  • stop_session(): Release memory of libtorrent session.
  • listen_on(int min_port, int max_port): Will change the listen port and/or the listen interface.
  • add_torrent(add_torrent_params p): You add torrents through the add_torrent() function where you give an object with all the parameters. The add_torrent() overloads will block until the torrent has been added (or failed to be added) and returns an error code and a torrent_handle
  • start_dht(): Starts the dht node and makes the trackerless service available to torrents.
  • add_port_mapping(int protocol_type, int internal_port, int external_port): adds a port forwarding on UPnP and/or NAT-PMP, whichever is enabled. The return value is a handle referring to the port mapping that was just created.
  • start_upnp(): can be used to add and remove arbitrary port mappings.
  • start_natpmp(): can be used to add and remove arbitrary port mappings.
  • find_torrent(sha1 info_hash): looks for a torrent with the given info-hash. In case there is such a torrent in the session, a torrent_handle to that torrent is returned. In case the torrent cannot be found, an invalid torrent_handle is returned.
  • listen_port(): returns the port we ended up listening on.
  • add_dht_node(): adds a node to the routing table. This can be used if your client has its own source of bootstrapping nodes.
  • pop_alert(): is used to ask the session if any errors or events has occurred.

#####Torrent_handle:

  • is_valid(): Returns true if this handle refers to a valid torrent and false if it hasn't been initialized or if the torrent it refers to has been aborted.
  • info_hash(): returns the info-hash of the torrent.
  • status(): will return a structure with information about the status of this torrent.
  • add_url_seed(string url): adds another url to the torrent's list of url seeds. If the given url already exists in that list, the call has no effect. The torrent will connect to the server and try to download pieces from it, unless it's paused, queued, checking or seeding.
  • connect_peer(string address, int port, int source): is a way to manually connect to peers that one believe is a part of the torrent. If the peer does not respond, or is not a member of this torrent, it will simply be disconnected.

#####Torrent_status:

  • get_progress(): return a value in the range 0, 1, that represents the progress of the torrent's current task. It may be checking files or downloading.
  • get_state(): the main state the torrent is in torrent_status::state_t.
  • name(): the name of the torrent.

#####Torrent_info:

  • new_torrent_info_entry(entry* torrent_file): takes a lazy_entry will create a torrent_info object from the information found in the given torrent_file.
  • new_torrent_info_filename(string const* filename, int flags): takes a filename will simply load the torrent file and decode it inside the constructor, for convenience. This might not be the most suitable for applications that want to be able to report detailed errors on what might go wrong.
  • new_torrent_info_torrent_buffer(pointer torrentbuffer, int length, int flags): that takes a buffer pointer and a size will decode it as a .torrent file and initialize the torrent_info object for you.

#####Create_torrent:

  • new_create_torrent(): Initialize a libtorrent create_torrent and return a pointer of that torrent to node.js.
  • set_piece_hashes(string outpath): This function will assume that the files added to the torrent file exists at path p, read those files and hash the content and set the hashes in the create_torrent object.
  • bencode(): functions will encode data to bencoded.
  • set_comment(string comment): Sets the comment for the torrent.
  • set_creator(string creator): Sets the creator of the torrent.
  • add_url_seed(string url): This adds a url seed to the torrent. You can have any number of url seeds. For a single file torrent, this should be an HTTP url, pointing to a file with identical content as the file of the torrent. For a multi-file torrent, it should point to a directory containing a directory with the same name as this torrent, and all the files of the torrent in it.
0.1.7

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