clean the slate!

config/config.go

@@ -1,193 +0,0 @@
-// Copyright 2015 The Chihaya Authors. All rights reserved.
-// Use of this source code is governed by the BSD 2-Clause license,
-// which can be found in the LICENSE file.
-
-// Package config implements the configuration for a BitTorrent tracker
-package config
-
-import (
-	"encoding/json"
-	"io"
-	"os"
-	"time"
-)
-
-// Duration wraps a time.Duration and adds JSON marshalling.
-type Duration struct{ time.Duration }
-
-// MarshalJSON transforms a duration into JSON.
-func (d *Duration) MarshalJSON() ([]byte, error) {
-	return json.Marshal(d.String())
-}
-
-// UnmarshalJSON transform JSON into a Duration.
-func (d *Duration) UnmarshalJSON(b []byte) error {
-	var str string
-	err := json.Unmarshal(b, &str)
-	d.Duration, err = time.ParseDuration(str)
-	return err
-}
-
-// SubnetConfig is the configuration used to specify if local peers should be
-// given a preference when responding to an announce.
-type SubnetConfig struct {
-	PreferredSubnet     bool `json:"preferredSubnet,omitempty"`
-	PreferredIPv4Subnet int  `json:"preferredIPv4Subnet,omitempty"`
-	PreferredIPv6Subnet int  `json:"preferredIPv6Subnet,omitempty"`
-}
-
-// NetConfig is the configuration used to tune networking behaviour.
-type NetConfig struct {
-	AllowIPSpoofing  bool   `json:"allowIPSpoofing"`
-	DualStackedPeers bool   `json:"dualStackedPeers"`
-	RealIPHeader     string `json:"realIPHeader"`
-	RespectAF        bool   `json:"respectAF"`
-	SubnetConfig
-}
-
-// StatsConfig is the configuration used to record runtime statistics.
-type StatsConfig struct {
-	BufferSize        int      `json:"statsBufferSize"`
-	IncludeMem        bool     `json:"includeMemStats"`
-	VerboseMem        bool     `json:"verboseMemStats"`
-	MemUpdateInterval Duration `json:"memStatsInterval"`
-}
-
-// WhitelistConfig is the configuration used enable and store a whitelist of
-// acceptable torrent client peer ID prefixes.
-type WhitelistConfig struct {
-	ClientWhitelistEnabled bool     `json:"clientWhitelistEnabled"`
-	ClientWhitelist        []string `json:"clientWhitelist,omitempty"`
-}
-
-// TrackerConfig is the configuration for tracker functionality.
-type TrackerConfig struct {
-	CreateOnAnnounce      bool     `json:"createOnAnnounce"`
-	PurgeInactiveTorrents bool     `json:"purgeInactiveTorrents"`
-	Announce              Duration `json:"announce"`
-	MinAnnounce           Duration `json:"minAnnounce"`
-	ReapInterval          Duration `json:"reapInterval"`
-	ReapRatio             float64  `json:"reapRatio"`
-	NumWantFallback       int      `json:"defaultNumWant"`
-	TorrentMapShards      int      `json:"torrentMapShards"`
-
-	JWKSetURI            string   `json:"jwkSetURI"`
-	JWKSetUpdateInterval Duration `json:"jwkSetUpdateInterval"`
-	JWTAudience          string   `json:"jwtAudience"`
-
-	NetConfig
-	WhitelistConfig
-}
-
-// APIConfig is the configuration for an HTTP JSON API server.
-type APIConfig struct {
-	ListenAddr     string   `json:"apiListenAddr"`
-	RequestTimeout Duration `json:"apiRequestTimeout"`
-	ReadTimeout    Duration `json:"apiReadTimeout"`
-	WriteTimeout   Duration `json:"apiWriteTimeout"`
-	ListenLimit    int      `json:"apiListenLimit"`
-}
-
-// HTTPConfig is the configuration for the HTTP protocol.
-type HTTPConfig struct {
-	ListenAddr     string   `json:"httpListenAddr"`
-	RequestTimeout Duration `json:"httpRequestTimeout"`
-	ReadTimeout    Duration `json:"httpReadTimeout"`
-	WriteTimeout   Duration `json:"httpWriteTimeout"`
-	ListenLimit    int      `json:"httpListenLimit"`
-}
-
-// UDPConfig is the configuration for the UDP protocol.
-type UDPConfig struct {
-	ListenAddr     string `json:"udpListenAddr"`
-	ReadBufferSize int    `json:"udpReadBufferSize"`
-}
-
-// Config is the global configuration for an instance of Chihaya.
-type Config struct {
-	TrackerConfig
-	APIConfig
-	HTTPConfig
-	UDPConfig
-	StatsConfig
-}
-
-// DefaultConfig is a configuration that can be used as a fallback value.
-var DefaultConfig = Config{
-	TrackerConfig: TrackerConfig{
-		CreateOnAnnounce:      true,
-		PurgeInactiveTorrents: true,
-		Announce:              Duration{30 * time.Minute},
-		MinAnnounce:           Duration{15 * time.Minute},
-		ReapInterval:          Duration{60 * time.Second},
-		ReapRatio:             1.25,
-		NumWantFallback:       50,
-		TorrentMapShards:      1,
-		JWKSetURI:             "",
-		JWKSetUpdateInterval:  Duration{5 * time.Minute},
-		JWTAudience:           "",
-
-		NetConfig: NetConfig{
-			AllowIPSpoofing:  true,
-			DualStackedPeers: true,
-			RespectAF:        false,
-		},
-
-		WhitelistConfig: WhitelistConfig{
-			ClientWhitelistEnabled: false,
-		},
-	},
-
-	APIConfig: APIConfig{
-		ListenAddr:     "localhost:6880",
-		RequestTimeout: Duration{10 * time.Second},
-		ReadTimeout:    Duration{10 * time.Second},
-		WriteTimeout:   Duration{10 * time.Second},
-	},
-
-	HTTPConfig: HTTPConfig{
-		ListenAddr:     "localhost:6881",
-		RequestTimeout: Duration{10 * time.Second},
-		ReadTimeout:    Duration{10 * time.Second},
-		WriteTimeout:   Duration{10 * time.Second},
-	},
-
-	UDPConfig: UDPConfig{
-		ListenAddr: "localhost:6882",
-	},
-
-	StatsConfig: StatsConfig{
-		BufferSize: 0,
-		IncludeMem: true,
-		VerboseMem: false,
-
-		MemUpdateInterval: Duration{5 * time.Second},
-	},
-}
-
-// Open is a shortcut to open a file, read it, and generate a Config.
-// It supports relative and absolute paths. Given "", it returns DefaultConfig.
-func Open(path string) (*Config, error) {
-	if path == "" {
-		return &DefaultConfig, nil
-	}
-
-	f, err := os.Open(os.ExpandEnv(path))
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	conf, err := Decode(f)
-	if err != nil {
-		return nil, err
-	}
-	return conf, nil
-}
-
-// Decode casts an io.Reader into a JSONDecoder and decodes it into a *Config.
-func Decode(r io.Reader) (*Config, error) {
-	conf := DefaultConfig
-	err := json.NewDecoder(r).Decode(&conf)
-	return &conf, err
-}