> torrent = open('ubuntu-12.04.', 'r').read()Ī magnet hash is calculated from only the "info" section of the torrent metadata and then encoded in base32, like this: > hashcontents = bencode. A magnet hash is calculated from only the 'info' section of the torrent metadata and then encoded in base32, like this: > hashcontents bencode.bencode (metadata info) > import hashlib > digest hashlib.sha1 (hashcontents).digest () > import base64 > b32hash base64. Then, you can parse it in Python like this: > import bencode MAGNET is an open URI-scheme and supporting practices/code for enabling seamless integration between websites and locally-running utilities, such as file-management tools. The standard for Magnet URIs was developed by Bitzi in 2002, partly as a vendor- and project-neutral generalization of the ed2k: and freenet: URI schemes used. These files can be generated by anyone who already has the file without a central authority. The magnet links allow files to be referred to without the need for a continuously available host.
To show you an example, I downloaded a torrent ISO of Ubuntu from here: Magnet links are mainly used in P2P (peer-to-peer) file-sharing networks that are combined by several computer servers. You can do this with the bencode module, extracted from BitTorrent. Magnet is a URI scheme that defines the format of magnet links, a de facto standard for identifying files (URN) by their content, via cryptographic hash value rather than by their location.
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