dtorrent_task_v2 0.4.8 copy "dtorrent_task_v2: ^0.4.8" to clipboard
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Published 18 days ago
SDKDartFlutter
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BitTorrent download client package written by pure Dart language.

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0.0.1 #

  • Initial version

0.0.2 #

  • Fix license file error
  • Fix example error

0.1.1 #

  • Add DHT support
  • Add PEX support
  • Change Tracker
  • Fix some bugs

0.1.2 #

  • Support peer reconnect
  • Fix some bugs

0.1.4 #

  • Fix some issues
  • Fix peer download slow issue

0.2.0 #

  • Add UTP support
  • Add holepunch extension
  • Add LSD extension
  • Fix PEX extension bugs

0.2.1 #

  • Change congestion control

0.3.0 #

  • Add Send Metadata extension (BEP0009)

0.3.1 #

  • nullsafety

0.3.2 #

  • pub.dev fixes

0.3.3 #

  • migrate to events_emitter2

0.3.4 #

  • use events_emitter and streams when possible
  • video streaming fixes
  • fix tests
  • validate completed pieces
  • add task start, task stop, task resume events
  • move more dynamic types to explicit types
  • update deps and sdk constraints

0.3.5 #

  • use more broad collection constraints

0.4.0 #

  • enable utp
  • decouple some parts of the code
  • use logging package
  • select pieces when stream is seeking
  • cache piece in memory until it is validated then write to disk
  • enable lsd
  • fixes for PEX
  • emit useful events
  • add simple binary for testing
  • optimizing
  • fix memory leaks
  • some refactoring and cleanup

0.4.1 #

  • update dependencies to latest compatible versions
  • upgrade SDK constraint to >=3.0.0
  • fix dead code warnings in examples
  • remove unused code (_hookUTP method, unused imports)
  • fix TCPConnectException to properly use exception field
  • update analysis options to disable constant naming checks

0.4.2 #

  • update mime dependency from ^1.0.6 to ^2.0.0
  • optimize lookupMimeType usage to avoid duplicate calls
  • update lints dev dependency from ^2.1.1 to ^6.0.0
  • fix linter warnings for new lint rules (unnecessary_library_name, strict_top_level_inference, unintended_html_in_doc_comment)
  • fix uTP RangeError crashes with comprehensive protection:
    • add buffer bounds validation before all setRange operations
    • add message length validation (negative, oversized, and overflow values)
    • add integer overflow protection for message length calculations
    • wrap all critical uTP operations in try-catch blocks with RangeError handling
    • add RangeError metrics tracking (Peer.rangeErrorCount, Peer.utpRangeErrorCount)
    • add detailed logging for uTP debugging (buffer sizes, message parsing)
    • extract magic numbers to constants (MAX_MESSAGE_SIZE, BUFFER_SIZE_WARNING_THRESHOLD)
  • create comprehensive test suite for uTP RangeError protection:
    • utp_range_error_protection_test.dart: basic validation tests
    • utp_stress_test.dart: stress tests with 50+ parallel peers
    • utp_reorder_test.dart: packet reordering and burst ACK tests
    • utp_extreme_values_test.dart: extreme value tests (large seq/ack, overflows)
    • utp_long_session_test.dart: long session stability tests

0.4.3 #

  • fix critical bug where downloads don't start despite connected peers (fixes #4)
  • fix race condition in bitfield processing when peer sends unchoke before interested
  • optimize progress event emission with debouncing to reduce UI update frequency
  • improve uTP congestion control with optimized initial window size
  • add streaming isolate support for better performance during video streaming
  • export magnet parser and torrent creator in public API

0.4.4 #

  • add Base32 infohash support in magnet links (RFC 4648)
  • integrate trackers from magnet links into MetadataDownloader for peer discovery
  • add automatic retry mechanism (up to 3 attempts) when metadata verification fails
  • implement parallel metadata download from multiple peers for faster completion
  • improve timeout handling with exponential backoff (10s base, +5s per retry, max 30s)
  • add TrackerTier class for grouping trackers by tiers (BEP 0012)
  • support parsing numbered tracker parameters (tr.1, tr.2, etc.) as separate tiers
  • announce to trackers tier by tier for better reliability
  • detect private torrent flag in metadata handshake (BEP 0027)
  • automatically disable DHT announce for private torrents
  • block PEX peer exchange for private torrents
  • parse ws (Web Seed) parameter from magnet links (BEP 0019)
  • parse as (Acceptable Source) parameter from magnet links
  • support multiple web seed URLs
  • implement WebSeedDownloader class for HTTP/FTP seeding (BEP 0019)
  • support HTTP Range requests for efficient piece downloading
  • integrate web seed URLs from magnet links into TorrentTask
  • automatic fallback to P2P when web seeds are unavailable
  • support multiple web seed URLs with retry mechanism (max 3 attempts per URL)
  • handle both Partial Content (206) and Full Content (200) HTTP responses
  • proper resource cleanup and HttpClient management
  • web seed download triggered when no peers available for a piece
  • update TorrentTask.newTask() to accept webSeeds and acceptableSources parameters
  • parse so (select only) parameter from magnet links (BEP 0053)
  • add applySelectedFiles() method to TorrentTask for prioritizing selected files
  • add metadata caching to avoid re-downloading metadata for same infohash
  • add configurable cache directory (defaults to system temp + metadata_cache)
  • enhance error handling and logging throughout metadata download process
  • improve timeout management with per-piece retry tracking
  • update example showing all new magnet link features
  • fix magnet parser to properly handle multiple parameters with same key (so, ws, as)
  • improve LSD port conflict handling in TorrentTask.start() to gracefully continue without LSD
  • add early validation for empty piece size in WebSeedDownloader to prevent unnecessary HTTP requests
  • fix PieceManager tests to properly set remote bitfield for peer selection
  • fix PieceManager test for writeComplete to check isCompletelyWritten instead of flushed flag
  • improve streaming isolate tests to handle ReceivePort reuse errors gracefully
  • fix torrent creator tests to accept both ArgumentError and PathNotFoundException for empty directories
  • fix torrent client tests to skip when required torrent file is missing
  • enhance web seeding integration tests with better port conflict detection
  • improve test reliability by handling resource conflicts in parallel test execution
  • fix critical bug: "Invalid message buffer size: length=1" error for messages without payload (choke, unchoke, interested, not interested)
  • fix peer transfer from MetadataDownloader to TorrentTask after metadata download completes
  • transfer active peers from metadata download phase to actual download phase to avoid reconnection delays
  • add trackers from magnet link to TorrentTask to ensure all trackers are used even if not in metadata
  • improve bitfield handling: properly support messages without payload according to BEP 0003
  • enhance test example with comprehensive diagnostics and automatic completion detection

0.4.5 #

  • add advanced sequential download support for streaming
  • add SequentialConfig class for flexible streaming configuration
  • add AdvancedSequentialPieceSelector with look-ahead buffer
  • add SequentialStats for download metrics and health monitoring
  • add look-ahead buffer for smooth playback (configurable size)
  • add critical piece prioritization (moov atom for MP4 files)
  • add adaptive strategy (automatic switching between sequential and rarest-first)
  • add seek operation support with fast priority rebuilding
  • add auto-detection of moov atom for MP4 files
  • add peer priority optimization (BEP 40 - Canonical Peer Priority)
  • add fast piece resumption support (BEP 53 - Partial data)
  • add sequential statistics API (getSequentialStats())
  • add playback position tracking (setPlaybackPosition())
  • add factory methods for common use cases (forVideoStreaming(), forAudioStreaming())
  • add comprehensive streaming examples
  • export sequential download classes in public API

0.4.6 #

  • add BitTorrent Protocol v2 (BEP 52) support
  • add v2 info hash support (32 bytes SHA-256 instead of 20 bytes SHA-1)
  • add v2 piece hashing with SHA-256 algorithm
  • add hybrid torrent support (v1 + v2 compatibility)
  • add torrent version detection via meta version field
  • add file tree structure support (BEP 52) with FileTreeHelper class
  • add piece layers support with PieceLayersHelper class
  • add Merkle tree validation for v2 files with MerkleTreeHelper class
  • add hash request/hashes/hash reject messages (ID 21, 22, 23) for v2 protocol
  • add hybrid torrent handshake upgrade (4th bit in reserved bytes)
  • add v2 info hash calculation (SHA-256 from bencoded info dict)
  • add TorrentVersionHelper for version detection and hash algorithm selection
  • update handshake protocol to support v2 extension bit
  • update piece validation to support both SHA-1 (v1) and SHA-256 (v2)
  • update PieceManager to handle piece layers for v2 torrents
  • update DownloadFileManager to support file tree structure
  • add comprehensive test suite for BEP 52 features (33 new tests)
  • export BEP 52 helper classes in public API (FileTreeHelper, PieceLayersHelper, MerkleTreeHelper)

0.4.7 #

  • add BEP 48 Tracker Scrape support with scrapeTracker() method in TorrentTask
  • add ScrapeClient class for retrieving torrent statistics (seeders, leechers, downloads) without full announce
  • add UPnP and NAT-PMP port forwarding support with PortForwardingManager class
  • add NATPMPClient and UPnPClient for automatic port mapping and gateway discovery
  • add IP filtering functionality with IPFilter class supporting blacklist and whitelist modes
  • add eMule dat format parser (EmuleDatParser) for loading IP filters from .dat files
  • add PeerGuardian format parser (PeerGuardianParser) for loading IP filters from .p2p files
  • add HTTP proxy support with ProxyConfig and ProxyManager classes
  • add SOCKS5 proxy support with Socks5Client class
  • add HTTP proxy client (HttpProxyClient) for HTTP/HTTPS proxy connections
  • add torrent queue management system with QueueManager and TorrentQueue classes
  • add priority-based queue system with QueuePriority enum (low, normal, high, urgent)
  • add concurrent download limit support in queue manager
  • add queue events (QueueItemAdded, QueueItemCompleted, QueueItemFailed, etc.)
  • add enhanced state file format (StateFileV2) with versioning and validation
  • add magic bytes ("DTSF") for state file format identification
  • add automatic migration from v1 to v2 state file format
  • add gzip compression support for bitfield storage (reduces file size for large torrents)
  • add sparse storage format for partially downloaded torrents (optimizes storage for <10% completion)
  • add CRC32 checksums for header and bitfield validation
  • add state file integrity validation with validate() method
  • add StateRecovery class for automatic recovery from corrupted state files
  • add FileValidator class for validating downloaded files against piece hashes
  • add quick validation mode (checks file existence and sizes without hash verification)
  • add full validation mode (validates all pieces with SHA-1/SHA-256 hashes)
  • add per-file validation support for selective file verification
  • add automatic file validation on resume with validateOnResume option in DownloadFileManager
  • add state file metadata tracking (version, last modified timestamp, storage flags)
  • add dynamic storage format switching (sparse/full based on completion ratio)
  • add state file backup functionality before recovery operations
  • export new classes in public API (StateFileV2, StateRecovery, FileValidator, ProxyConfig, ProxyManager, QueueManager, IPFilter, PortForwardingManager)
  • add comprehensive examples (proxy_example.dart, torrent_queue_example.dart, fast_resume_example.dart, ip_filtering_example.dart, port_forwarding_example.dart, simple_integration_example.dart)
  • add comprehensive test suites for all new features

0.4.8 #

  • add BEP 16 Superseeding support with SuperSeeder class and enableSuperseeding()/disableSuperseeding() methods in TorrentTask
  • add superseeding algorithm implementation that masquerades seeder as peer with no data to improve seeding efficiency
  • add piece rarity tracking and distribution monitoring for superseeding mode
  • add automatic superseeding activation when download completes (if enabled before completion)
  • add file priority management system with FilePriorityManager class and FilePriority enum (skip, low, normal, high)
  • add setFilePriority() and setFilePriorities() methods for individual and batch file priority management
  • add getFilePriority() method to retrieve current file priority
  • add autoPrioritizeFiles() method for automatic priority assignment based on file extensions (video/audio files get high priority, subtitles get normal, others get low)
  • add piece prioritization based on file priorities (high priority files download first)
  • add file priority persistence in state file (StateFileV2) for resume support
  • add TorrentParser class to replace external dtorrent_parser dependency
  • add TorrentModel class as replacement for Torrent class from dtorrent_parser
  • add full BEP 52 (v2) support in built-in parser with automatic version detection
  • add support for parsing v1, v2, and hybrid torrents in TorrentParser
  • add TorrentModel.parse() static method for backward compatibility with Torrent.parse()
  • add TorrentParser.parseBytes() and TorrentParser.parseFromMap() for flexible parsing
  • remove dependency on dtorrent_parser package (now built-in)
  • add comprehensive superseeding example (superseeding_example.dart) with CLI interface
  • add file validation and bitfield update functionality in superseeding example
  • improve piece distribution logic in SuperSeeder for better efficiency
  • improve state file handling with file priorities support
  • improve temporary file cleanup during state file operations
  • export FilePriority and FilePriorityManager in public API
  • export SuperSeeder in public API (via seeding module)
  • add comprehensive test suite for superseeding functionality
  • update all examples and tests to use TorrentModel instead of Torrent from dtorrent_parser

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BitTorrent download client package written by pure Dart language.

Repository (GitHub)
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Documentation

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License

BSD-3-Clause (license)

Dependencies

args, b_encode_decode, bittorrent_dht, collection, crypto, dart_ipify, dtorrent_common, dtorrent_tracker, events_emitter2, http, logging, mime, utp_protocol, xml

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