A tool to convert torrent files to and from a JSON representation - designed to make torrent file editing, searching, storage, and analysis easy.
Parse a torrent file and return an object of keys/values. Works in node and the browser (with browserify). The parsed torrent object looks like this:
{
"infoHash": "d2474e86c95b19b8bcfdb92bc12c9d44667cfa36",
"name": "Leaves of Grass by Walt Whitman.epub",
"encoding": "UTF-8",
"created": 1375363666,
"createdBy": "uTorrent/3300",
"comment": "Torrent downloaded from torrent cache at https://itorrents.org",
"announce": [
"https://tracker.example.com/announce"
],
"urlList": [],
"files": [
{
"path": "Leaves of Grass by Walt Whitman.epub",
"length": 362017
}
],
"pieceLength": 16384,
"pieces": [
"1f9c3f59beec079715ec53324bde8569e4a0b4eb",
"ec42307d4ce5557b5d3964c5ef55d354cf4a6ecc",
"7bf1bcaf79d11fa5e0be06593c8faafc0c2ba2cf",
"76d71c5b01526b23007f9e9929beafc5151e6511",
"0931a1b44c21bf1e68b9138f90495e690dbc55f5",
"72e4c2944cbacf26e6b3ae8a7229d88aafa05f61",
"eaae6abf3f07cb6db9677cc6aded4dd3985e4586",
"27567fa7639f065f71b18954304aca6366729e0b",
"4773d77ae80caa96a524804dfe4b9bd3deaef999",
"c9dd51027467519d5eb2561ae2cc01467de5f643",
"0a60bcba24797692efa8770d23df0a830d91cb35",
"b3407a88baa0590dc8c9aa6a120f274367dcd867",
"e88e8338c572a06e3c801b29f519df532b3e76f6",
"70cf6aee53107f3d39378483f69cf80fa568b1ea",
"c53b506159e988d8bc16922d125d77d803d652c3",
"ca3070c16eed9172ab506d20e522ea3f1ab674b3",
"f923d76fe8f44ff32e372c3b376564c6fb5f0dbe",
"52164f03629fd1322636babb2c014b7dae582da4",
"1363965261e6ce12b43701f0a8c9ed1520a70eba",
"004400a267765f6d3dd5c7beb5bd3c75f3df2a54",
"560a61801147fa4ec7cf568e703acb04e5610a4d",
"56dcc242d03293e9446cf5e457d8eb3d9588fd90",
"c698de9b0dad92980906c026d8c1408fa08fe4ec"
]
}Full installation instructions here.
npm install json-torrentWe include a CLI with two commands (encode & decode) that operates over STDIO. Decoded JSON is printed in a single line:
$ json-torrent decode < ./leaves-of-grass.torrent
{"infoHash":"d2474e86c95b19b8bcfdb92bc12c9d44667cfa36","name":"Leaves of Grass by Walt Whitman.epub","encoding":"UTF-8","created":1375363666,"createdBy":"uTorrent/3300","comment":"Torrent downloaded from torrent cache at https://itorrents.org","announce":["https://tracker.example.com/announce"],"urlList":[],"files":[{"path":"Leaves of Grass by Walt Whitman.epub","length":362017}],"pieceLength":16384,"pieces":["1f9c3f59beec079715ec53324bde8569e4a0b4eb","ec42307d4ce5557b5d3964c5ef55d354cf4a6ecc"...This isn't easy to read, so you should use jq when you need coloring & pretty-printing:
$ json-torrent decode < ./leaves-of-grass.torrent | jq
{
"infoHash": "d2474e86c95b19b8bcfdb92bc12c9d44667cfa36",
"name": "Leaves of Grass by Walt Whitman.epub",
"encoding": "UTF-8",
"created": 1375363666,
"createdBy": "uTorrent/3300",
"comment": "Torrent downloaded from torrent cache at https://itorrents.org"
...
}Plus, jq can be used for basic editing, like stripping out extraneous fields:
json-torrent decode < leaves-of-grass.torrent | jq "del(.comment, .announce)" | json-torrent encode > leaves-of-grass-slim.torrent...Or querying specific fields:
json-torrent decode < slackware.torrent | jq ".files[].path"
"slackware-12.2-install-dvd.iso"
"slackware-12.2-install-dvd.iso.asc"
"slackware-12.2-install-dvd.iso.md5"var parseTorrentFile = require('json-torrent')
var torrent = fs.readFileSync('torrents/leaves.torrent')
var parsed
try {
parsed = parseTorrentFile.decode(torrent)
} catch (e) {
// the torrent file was corrupt
console.error(e)
}
console.log(parsed.name) // Prints "Leaves of Grass by Walt Whitman.epub"To convert a parsed torrent back into a torrent file buffer, call parseTorrentFile.encode.
var parseTorrentFile = require('json-torrent')
// parse a torrent
var parsed = parseTorrentFile.decode(/* some buffer */)
// convert parsed torrent back to a buffer
var buf = parseTorrentFile.encode(parsed)- parse-torrent-file, which this tool is based upon. It includes some extra data in the parsed output (like Buffers) and doesn't support lossless serialization as JSON.
- read-torrent, the tool that parse-torrent-file was based on, which includes more extra junk, like a dependency upon request and some logic for reading files.