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chihaya/CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog

v10.5.0

Changed

  • Adjust histogram buckets to better capture wider range of data

v10.4.1

Fixed

  • Load group freeleech during initialization

v10.4.0

Changed

  • Separate torrents and group freeleech reload
  • Reload approved client list on every refresh

v10.3.0

Added

  • Prometheus metric throughput

v10.2.0

Changed

  • Increase announce interval for non-existing torrents

v10.1.0

Changed

  • Use new util.Semaphore (introduced in v10.0.0) in database/flush

v10.0.0

Added

  • Use context.WithTimeout to cancel long-running request

Changed

  • Exit on uninitialized Record error
  • Improve and standardize logging across various files
  • Update warning messages in readConfig
  • Make serialization atomic by using os.Rename
  • Refactor old /check into new /alive endpoint
  • Bump minimum Go version to 1.19

v9.0.1

Fixed

  • Record of ID 0 in approved_clients table being treated as non-approved
  • Requests should be counted for Prometheus collector before handling them in ServerHTTP
  • Handle TorrentsMutex's RUnlock in defer in server/scrape.go
  • Incorrect usage of log.Panic in record/record.go

v9.0.0

Added

  • Allow configuring ReadHeaderTimeout, IdleTimeout and SetKeepAlivesEnabled

Changed

  • Refactor config file structure:
    • Move read_timeout, write_timeout to new http.timeout section and remove _timeout suffix

v8.1.0

Fixed

  • Avoid 'superfluous response.WriteHeader call' error when handling panic in ServeHTTP

Changed

  • Do not set GOMAXPROCS in chihaya/main as it defaults to system CPUs on new Go versions already

v8.0.0

Added

  • Ability to control HTTP timeouts via read_timeout and write_timeout (in new http config section)

Changed

  • Refactor config file structure:
    • Move strict_port, numwant and maxnumwant to new announce section
    • Move addr, admin_token to new http section
    • Rename proxy to proxy_header and move it to http section

Removed

  • flush_groups configuration option and related code

v7.1.0

Changed

  • Modify HTTP read/write timeouts

v7.0.0

Removed

Changed

  • Due to above change, bump minimum Go version to 1.17

v6.1.0

Changed

  • Load freeleech data for torrent groups separately from torrents themselves

v6.0.0

Changed

  • Switch build system to Makefile

v5.3.0

Fixed

  • Null pointer dereference on SQL rows in purgeInactivePeers and load* functions
  • Wrong max deadlock count being printed in warning message

Changed

  • Improve database tests

v5.2.0

Added

  • Database tests using go-testfixtures/testfixtures were added

v5.1.1

Fixed

  • Download and upload multiplier being switched around when loading new user

v5.1.0

Added

  • flush_groups config option was added to control whether groups should be updated whenever related torrent is flushed

v5.0.0

Changed

  • Renamed table client_whitelist to approved_clients
  • Renamed prometheus stat chihaya_whitelist to chihaya_clients
  • Removed all references to whitelist/blacklist

v4.2.0

Changed

  • Use crypto/rand in util for RandStringBytes and Rand

v4.1.0

Added

  • chihaya_sql_errors_count metric now tracks SQL errors

Changed

  • Temporary tables for user and torrent flushes are now used more efficiently

v4.0.0

Changed

  • Do not use enum for transfer_history

v3.5.0

Added

  • Update the timestamp on torrents group when flushing torrents

v3.4.0

Changed

  • Do not return scrape information for torrents that user can not download

v3.3.0

Added

  • New format for record including more useful data

v3.2.0

Added

  • Prometheus metric for tracking aborted deadlocks
  • Tests for GetInt and GetBool in config
  • Tests for server/params

Changed

  • Clarify Your client is not approved message by using peer_id instead of id

v3.1.1

Fixed

  • Remove unnecessary quoting of integer columns for database queries

v3.1.0

Added

  • Ability to configure default/maximum numwant from config

Fixed

  • ServeHTTP panicking when query string included empty parameter followed by delimiter (?bug=&yes=)

Changed

  • Ensure peer_id is always 20 bytes
  • Rewrite query string parser
  • Ignore info_hash if it isn't exactly 20 bytes

v3.0.0

Added

  • Log failing URL on panic in ServeHTTP
  • /check endpoint for healt-checking
  • Ability to configure intervals from config.json
  • Ability to configure deadlock behavior from config.json
  • Ability to configure channels buffer length from config.json
  • Ability to restore cache dump from JSON

Fixed

  • successful typo
  • Handle errors early for prepared statements

Changed

  • Moved InitPrivateIPBlocks to init inside server.go
  • Panic in metrics instead of returning empty body on error
  • Golint reformat code
  • Narrow bytes.Buffer in server to io.Writer
  • Eliminate long lines
  • golangci: disable default linters and specify hard list of enabled ones
  • Return HTTP 500 when panicking in ServeHTTP
  • Use time.Duration.String for time formatting across code
  • Remove prepareStatement from database.go
  • database: OpenDatabaseConnection -> Open
  • database: exec -> execute, execBuffer -> exec (follows PDO)
  • Reformat README with better explanation of config file
  • Count only unique deadlocks for chihaya_deadlock_count
  • Move query parsing logic to separate module
  • Do not parse query string globally in server, have each action handle it separately if needed
  • Completely rework passkey and action logic allowing for non-passkey protected endpoints
  • Return 404 with empty body when request is malformed or action is not recognized instead of bencoded message
  • Handle errors of w.Write() in ServeHTTP
  • Various code cleanups

v2.5.0

Added

  • Ability to enable or disable strict port checking in config.json
  • Add bencode utility for converting between bencode and JSON
  • Help screen for chihaya
  • Ability to configure inactive peer time and announce drift

Fixed

  • Call to panic() with wrong argument in failure() (server.go)
  • cc utility was overwriting torrent cache file with JSON version
  • Header configured in proxy was not being respected
  • @config/GetInt() was improperly implemented using int instead of json.Number
  • InactiveAnnounceInterval did not account for configured announce drift properly
  • config Getters were failing on unexpected values (such as nil) instead of falling back to default
  • New flush logic for users and torrents was not properly utilizing temporary table leading to data loss in cases where single user or torrent was present multiple times in a flushed channel

Changed

  • Have Get functions in config return bool indicating whether default was used
  • Rename cache-dump to cc
  • Do not use chihaya/log inside cc utility
  • Split types from database into types sub-package
  • Move logging of Info from stderr to stdout
  • Rename profile flag to P
  • Make announce drift random
  • Make @config/GetInt() return int instead of int64
  • config now reads numeric values from JSON as numbers instead of floats

v2.4.0

Added

  • Ability to configure logging of flushes in config.json
  • Utility for exporting cache into readable JSON format
  • Ability to specify custom arguments CGO_ENABLED, GOOS and GOARCH in Dockerfile during build process
  • Dump stacktrace when error is encountered

Fixed

  • README was improperly showing null as valid value for admin_token and proxy.

Changed

  • Changed users and torrents flush SQL queries to use temporary table with UPDATE instead of INSERT INTO ... ON DUPLICATE KEY ..., this avoids rare cases where previously removed entry from these tables is inserted back with default values by chihaya
  • Code cleanup
  • Make torrentId uint32
  • Moved main.go to cmd/chihaya to allow for building multiple binaries

v2.3.0

Added

  • Support for interval time in /scrape endpoint
  • Support for failure reason in /scrape endpoint
  • Add port to transfer_ips
  • Add port to JSON recorder

Changed

  • Use Alpine docker image as builder
  • Better formatting of warning messages in config.go
  • Split mandatory parameters check into separate sections with their own failure messages
  • Do not lock TorrentsMutex if no info_hash is provided to /scrape
  • Print name of unsupported action in failure message
  • Refactor logging across codebase
  • Record hidden ip as 2130706433 (127.0.0.1) instead of 0 (0.0.0.0)
  • Refactor config allowing for default values to be given in code
  • Move record and scrape from build tags into config variables

v2.2.0

Added

  • Additional metrics in prometheus for whitelist, hit and runs
  • Additional metrics in prometheus for channels, reload time, flush time, deadlock
  • Validate port provided by client (must be between 1024 and 65535)

Changed

  • Code cleanup
  • Move IP check from server to announce

v2.1.0

Added

  • Ability to control which (if any) header is used for proxy support

Changed

  • Fail request if IP provided by client is in private range

v2.0.0

Added

  • Support for prometheus metrics

Changed

  • Run docker container as UID 1000
  • Use Go 1.14

Removed

  • Plaintext /stats endpoint

v1.3.1

Added

  • Print number of CPUs when started with profile flag

v1.3.0

Added

  • Dockerfile

Changed

  • Code style fixes

v1.2.0

Changed

  • Optimize structs memory alignment
  • Code cleanup

v1.0.0

Changed

  • Rewrote database using database/sql and MySQL driver

v0.8.0

Added

  • Tests for config.go

Changed

  • Only one peer per user is sent when seeders requested

v0.7.0

Added

  • Tests for record.go
  • Tests for util.go
  • Print peerId on 'client not approved' failure message
  • RandStringBytes in util
  • Tests for util/bufferpool

Fixed

Changed

  • Migrate to bencode library (https://github.com/zeebo/bencode)
  • Explicitly ignore error handling on shutdown
  • Code cleanup
  • Remove obsolete TODOs
  • Simplify ipAddr handling in announce
  • Export ConfigMap from config
  • Extract record into separate package
  • Synchronously populate initial data from database into memory

v0.6.0

Added

  • Support for archived whitelist entries
  • Failsafe to ensure all IPs are always IPv4 only
  • Allow to build without scrape and recorder via build tags

Fixed

  • Ensure down/up multipliers are always positive
  • Make transferHistory wait in purgeInactivePeers atomic with add in flushTransferHistory
  • Ensure transferHistoryWaitGroup is released properly on loop break when transferHistoryChannel is empty
  • Do not break main loop in flushTransferHistory when channel is empty

Changed

  • Rename whitelist table from xbt_whitelist to client_whitelist
  • Update torrent's last_action only if announced action is seeding
  • Increase AnnounceInterval, MinAnnounceInterval and PurgeInactiveInterval
  • Update to MariaDB 10.3.3 syntax (https://mariadb.com/kb/en/library/values-value)
  • Move external modules to go.mod
  • Check error value from .Encode during serialization
  • Remove connectable from transfer_history flush
  • Code cleanup and formatting

v0.5.0

Added

  • Support for disabling logging of IP for user
  • Support for no_peer_id
  • Support for ipv4 query string
  • Support for interval in failure

Changed

  • Ignore paused event (https://www.bittorrent.org/beps/bep_0021.html)
  • Cleanup unused code
  • Have interval for announce include small drift in form of min(600, seeders)
  • Default to compact responses unless explicitly asked for by compact=0
  • Bump default numWant from 20 to 25

v0.4.0

Added

  • Add LICENSE
  • Simple JSON announce recorder
  • Handle SIGTERM in addition to INT for graceful restarts
  • Support for group based freeleech
  • Allow downloading Hit and Runs even if DisableDownload is set for user

Fixed

  • Returning 50 peers when the client asks for 0
  • Fix peer inactivity query
  • Broken bencode on /scrape
  • Swapped up/down multiplier for initial torrent load
  • Ensure time delta is never higher than inactivity period
  • Whitelist reloading was limited to 100 entries

Changed

  • Run go fmt
  • Use linear falloff when handling deadlocks
  • Make some config values more sane
  • Stop disabling http/1.1 keep-alive
  • Reduce peer ID collision potential
  • Structure of transfer_ips was reworked to include more data

Removed

  • Support for slots

v0.3.0

Added

  • Add deserialization time logging
  • Handle global freeleech
  • Reactivate pruned torrents when a seeder announces

Fixed

  • Lock mainConn before closing it
  • Only start HTTP server after initializing the database
  • Fix database reload timeouts occurring during a slot cache verification
  • Fix race condition causing users to appear inactive but leaving them in the peer hash

Changed

  • Force Connection: close
  • Suppress superfluous HTTP panic logging
  • Sleep before verifying slots for the first time
  • Switch to a better used slots verification strategy
  • Only load enabled users
  • Flush the peer on every announce to update the last announce time

v0.2.0

Added

  • Support for reverse proxy via X-Real-Ip header
  • Deadlock handling
  • Use multiple database connections

Changed

v0.1.0

Added

  • Initial release