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CHANGELOG.md

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Unreleased

Changed

  • Library is now compiled against JDK 11
  • JBT-120: UdpTrackerModule now reads the incoming port from TorrentClientSettings in favor of duplicating it.
  • JBT-122: Rewrote the piece selection handling
    • PieceSelector has been replaced by PiecePrioritzer
    • Piece/Block request state management is no longer owned by Peer (has been moved to an internal class)
    • Peer#getFreeWorkTime() has been removed
    • PeerStateAccess has been introduced to expose state based on internal state
  • #125: Changed ut-metadata module to use java.nio.Path instead of java.io.File
  • #127: ut-metadata phases are now able to handle torrents that already have metadata
    • Block requests are now rejected until we have a completed metadata fileset
    • Introduced UtMetadata to build metadata fileset state according to download state

Fixed

  • JBT-123: Ignore block message for blocks that are not expecting block data

0.7.0

Added

  • JBT-104: NioPeerConnector is now available. This connector is optimized to run with out a dedicated thread but on the executor threads.
  • JBT-110: TorrentClientSettings is introduced on TorrentClient to separate client state from configuration

Changed

  • JBT-98: The network layer has been rewritten to be event driven in favor of polling.
  • JBT-100: AbstractPeerConnectionAcceptor has been replaced by BitTorrentHandshakeHandler
  • JBT-102: ISocket has been remodelled around Channels instead of Sockets.
  • JBT-104: BitTorrentSocket is now always a socket which has passed the handshake process.
  • JBT-99: Peer IO is now processed until it can no longer be executed without blocking.
  • JBT-106: Unsupported tracker protocols no longer throw an exception but will log a warning and return Optional#empty
  • JBT-107: UDP Trackers now support the common /announce suffix.
  • JBT-116: Connection queue has been given a priority strategy to (mostly) evenly split over torrents.
  • JBT-117: Peer#addBlockRequest now rejects when the peer is choked
  • JBT-117: Metadata phases now use a dedicated choking strategy to show interest into clients which have the metadata and the ut_metadata extension data
  • JBT-110: UtpModule now reuses the download port set on the TorrentClient

Deprecated

  • JBT-102: Peer#getBitTorrentSocket() is now deprecated. The BitTorrentSocket will become an internal class. Functionality will be replaced.
  • JBT-110: UtpModule.Builder#listenOn(int) now reuses the download port set on the TorrentClient

Fixed

  • JBT-110: Remote connections coming in through uTP now correctly get ignored when isAcceptingConnections is false.

Removed

  • JBT-102: BitTorrentSocket has forgotten how to process handshakes.

0.6.0

Added

  • JBT-19: Support for HTTP(s) trackers with the HttpTrackerModule.
  • JBT-8: Support for base-32 magnet links.
  • JBT-10: A dedicated class Metadata to represent the Torrent Metadata.

Improvements

  • JBT-59: Rebuild the uTP implementation from scratch. It's much more stable now
  • JBT-39: Optional<T> types have been removed as arguments and overloads have been added to compensate.
  • JBT-10: The internal Job system now relies on the AbstractFileSet of the given Piece. This makes the system more re-usable for other systems.
  • JBT-33: Doubled Torrent download throughput (According to integration test).
  • JBT-70: ISocket and TcpSocket have become part of the public API.

Fixes

  • JBT-44: Completion of pieces no longer has a chance to cause IndexOutOfBounds
  • JBT-75: The default included PhaseData no longer ingores choke states.

API Changes

  • JBT-50: IBencodedValue#serialise() now returns byte[] instead of String to correctly be capable of handling Strings which represent byte arrays containing data which is not valid UTF-8.
  • JBT-10: Peer#addBlockRequest now accepts a Piece instead of the index of the piece.
  • JBT-10: Torrent#getMetadata now returns a dedicated non-null Metadata object with an optional AbstractFileSet in case downloading the metadata is supported.
  • JBT-33: TorrentClient now requires IRequestLimiter to control how many requests a peer may have. The RateBasedLimiter is the old behaviour (but slightly improved to reach higher throughput).

0.5.1

Added

  • JBT-43: IBencodedValue#asBytes allows for efficient transport of string representing raw bytes (ex. the hashes in the .torrent file)

Improvements

  • JBT-32: Prevent reads on Piece#checkHash when the hash can't possibly be correct.
  • JBT-38: uTP is now better capable of dealing with packet loss.

Fixes

  • JBT-40: The ITracker interface was not correctly added to the torrent lifecycle causes no peers to be fetched.
  • JBT-41: Torrent#isDownloadingMetadata() returned false too early. This has been corrected.
  • JBT-42: Fix FullPieceSelect having inconsistent piece sorting.
  • JBT-43: Bencoding now takes in an InStream and reads the input as raw bytes as intended by the spec. This also resolves the encoding issues.

Removal

  • JBT-43: Bencoding#getCharactersRead() The corrected API takes in a stream which won't be consumed further than needed.

0.5.0

Initial release as Maven Module. With this release a lot of the code has been remade or refactored in order to be a modular and decoupled system.