config

package module
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 Go to latest Published: Jan 19, 2020 License: MIT Imports: 16 Imported by: 0

Documentation

Overview

package config implements the ipfs config file datastructures and utilities.

Index

Constants

View Source 
const (
	// DefaultPathName is the default config dir name
	DefaultPathName = ".ptfsMiner"
	// DefaultPathRoot is the path to the default config dir location.
	DefaultPathRoot = "~/" + DefaultPathName
	// DefaultConfigFile is the filename of the configuration file
	DefaultConfigFile = "config"
	// EnvDir is the environment variable used to change the path root.
	EnvDir = "PTFS_PATH"
	// DefaultConfigVersionFile 默认配置版本记录文件名
	DefaultConfigVersionFile = "conf_version"
)
View Source 
const DefaultConnMgrGracePeriod = time.Second * 20

DefaultConnMgrGracePeriod is the default value for the connection managers grace period

View Source 
const DefaultConnMgrHighWater = 900

DefaultConnMgrHighWater is the default value for the connection managers 'high water' mark

View Source 
const DefaultConnMgrLowWater = 600

DefaultConnMgrLowWater is the default value for the connection managers 'low water' mark

View Source 
const DefaultDataStoreDirectory = "datastore"

DefaultDataStoreDirectory is the directory to store all the local IPFS data.

View Source 
const IdentityTag = "Identity"
View Source 
const PrivKeySelector = IdentityTag + "." + PrivKeyTag
View Source 
const PrivKeyTag = "PrivKey"

Variables

View Source 
var DefaultBootstrapAddresses = []string{
	"/ip4/10.0.0.124/tcp/4001/ipfs/CiU5rnoiKVwF9t9BjpHVYAT2HCugR7p3VCh2LXdzp2C27j",
	"/ip4/10.0.0.115/tcp/4001/ipfs/CibZGhyKnviGupdCx9atGw4jhXwys2C4CAYk1znWmNvAaJ",
}

DefaultBootstrapAddresses are the hardcoded bootstrap addresses for IPFS. they are nodes run by the IPFS team. docs on these later. As with all p2p networks, bootstrap is an important security concern.

NOTE: This is here -- and not inside cmd/ipfs/init.go -- because of an import dependency issue. TODO: move this into a config/default/ package.

View Source 
var ErrInvalidPeerAddr = errors.New("invalid peer address")

ErrInvalidPeerAddr signals an address is not a valid peer address.

View Source 
var Profiles = map[string]Profile{
	"server": {
		Description: `Disables local host discovery, recommended when
running IPFS on machines with public IPv4 addresses.`,

		Transform: func(c *Config) error {
			c.Addresses.NoAnnounce = appendSingle(c.Addresses.NoAnnounce, defaultServerFilters)
			c.Swarm.AddrFilters = appendSingle(c.Swarm.AddrFilters, defaultServerFilters)
			c.Discovery.MDNS.Enabled = false
			c.Swarm.DisableNatPortMap = true
			return nil
		},
	},

	"local-discovery": {
		Description: `Sets default values to fields affected by the server
profile, enables discovery in local networks.`,

		Transform: func(c *Config) error {
			c.Addresses.NoAnnounce = deleteEntries(c.Addresses.NoAnnounce, defaultServerFilters)
			c.Swarm.AddrFilters = deleteEntries(c.Swarm.AddrFilters, defaultServerFilters)
			c.Discovery.MDNS.Enabled = true
			c.Swarm.DisableNatPortMap = false
			return nil
		},
	},
	"test": {
		Description: `Reduces external interference of IPFS daemon, this
is useful when using the daemon in test environments.`,

		Transform: func(c *Config) error {
			c.Addresses.API = Strings{"/ip4/127.0.0.1/tcp/0"}
			c.Addresses.Gateway = Strings{"/ip4/127.0.0.1/tcp/0"}
			c.Addresses.Swarm = []string{
				"/ip4/127.0.0.1/tcp/0",
			}

			c.Swarm.DisableNatPortMap = true

			c.Bootstrap = []string{}
			c.Discovery.MDNS.Enabled = false
			return nil
		},
	},
	"default-networking": {
		Description: `Restores default network settings.
Inverse profile of the test profile.`,

		Transform: func(c *Config) error {
			c.Addresses = addressesConfig()

			bootstrapPeers, err := DefaultBootstrapPeers()
			if err != nil {
				return err
			}
			c.Bootstrap = appendSingle(c.Bootstrap, BootstrapPeerStrings(bootstrapPeers))

			c.Swarm.DisableNatPortMap = false
			c.Discovery.MDNS.Enabled = true
			return nil
		},
	},
	"badgerds": {
		Description: `Replaces default datastore configuration with experimental
badger datastore.

If you apply this profile after ipfs init, you will need
to convert your datastore to the new configuration.
You can do this using ipfs-ds-convert.

For more on ipfs-ds-convert see
$ ipfs-ds-convert --help
and
$ ipfs-ds-convert convert --help

WARNING: badger datastore is experimental.
Make sure to backup your data frequently.`,

		Transform: func(c *Config) error {
			c.Datastore.Spec = map[string]interface{}{
				"type":   "measure",
				"prefix": "badger.datastore",
				"child": map[string]interface{}{
					"type":       "badgerds",
					"path":       "badgerds",
					"syncWrites": false,
					"truncate":   true,
				},
			}
			return nil
		},
	},
	"default-datastore": {
		Description: `Restores default datastore configuration.

If you apply this profile after ipfs init, you will need
to convert your datastore to the new configuration.
You can do this using ipfs-ds-convert.

For more on ipfs-ds-convert see
$ ipfs-ds-convert --help
and
$ ipfs-ds-convert convert --help
`,

		Transform: func(c *Config) error {
			c.Datastore.Spec = DefaultDatastoreConfig().Spec
			return nil
		},
	},
	"lowpower": {
		Description: `Reduces daemon overhead on the system. May affect node
functionality - performance of content discovery and data
fetching may be degraded.
`,
		Transform: func(c *Config) error {
			c.Routing.Type = "dhtclient"
			c.Reprovider.Interval = "0"

			c.Swarm.ConnMgr.LowWater = 20
			c.Swarm.ConnMgr.HighWater = 40
			c.Swarm.ConnMgr.GracePeriod = time.Minute.String()
			return nil
		},
	},
	"randomports": {
		Description: `Use a random port number for swarm.`,

		Transform: func(c *Config) error {
			port, err := getAvailablePort()
			if err != nil {
				return err
			}
			c.Addresses.Swarm = []string{
				fmt.Sprintf("/ip4/0.0.0.0/tcp/%d", port),
				fmt.Sprintf("/ip6/::/tcp/%d", port),
			}
			return nil
		},
	},
}

Profiles is a map holding configuration transformers. Docs are in docs/config.md

Functions

func BootstrapPeerStrings 

func BootstrapPeerStrings(bps []peer.AddrInfo) []string

BootstrapPeerStrings formats a list of AddrInfos as a bootstrap peer list suitable for serialization.

func DataStorePath 

func DataStorePath(configroot string) (string, error)

DataStorePath returns the default data store path given a configuration root (set an empty string to have the default configuration root)

func DefaultBootstrapPeers 

func DefaultBootstrapPeers() ([]peer.AddrInfo, error)

DefaultBootstrapPeers returns the (parsed) set of default bootstrap peers. if it fails, it returns a meaningful error for the user. This is here (and not inside cmd/ipfs/init) because of module dependency problems.

func Filename 

func Filename(configroot string) (string, error)

Filename returns the configuration file path given a configuration root directory. If the configuration root directory is empty, use the default one

func HumanOutput 

func HumanOutput(value interface{}) ([]byte, error)

HumanOutput gets a config value ready for printing

func Marshal 

func Marshal(value interface{}) ([]byte, error)

Marshal configuration with JSON

func ParseBootstrapPeers 

func ParseBootstrapPeers(addrs []string) ([]peer.AddrInfo, error)

ParseBootstrapPeer parses a bootstrap list into a list of AddrInfos.

func Path 

func Path(configroot, extension string) (string, error)

Path returns the path `extension` relative to the configuration root. If an empty string is provided for `configroot`, the default root is used.

func PathRoot 

func PathRoot() (string, error)

PathRoot returns the default configuration root directory

func ToMap 

func ToMap(conf *Config) (map[string]interface{}, error)

Types

type API 

type API struct {
	HTTPHeaders map[string][]string // HTTP headers to return with the API.
}

type Addresses 

type Addresses struct {
	Swarm      []string // addresses for the swarm to listen on
	Announce   []string // swarm addresses to announce to the network
	NoAnnounce []string // swarm addresses not to announce to the network
	API        Strings  // address for the local API (RPC)
	Gateway    Strings  // address to listen on for IPFS HTTP object gateway
}

Addresses stores the (string) multiaddr addresses for the node.

type Config 

type Config struct {
	Identity  Identity  // local node's peer identity
	Datastore Datastore // local node's storage
	Addresses Addresses // local node's addresses
	Mounts    Mounts    // local node's mount points
	Discovery Discovery // local node's discovery mechanisms
	Routing   Routing   // local node's routing settings
	Ipns      Ipns      // Ipns settings
	Bootstrap []string  // local nodes's bootstrap peer addresses
	Gateway   Gateway   // local node's gateway server options
	API       API       // local node's API settings
	Swarm     SwarmConfig
	Pubsub    PubsubConfig

	Provider     Provider
	Reprovider   Reprovider
	Experimental Experiments
	Plugins      Plugins
}

Config is used to load ipfs config files.

func FromMap 

func FromMap(v map[string]interface{}) (*Config, error)

func Init 

func Init(out io.Writer, nBitsForKeypair int) (*Config, error)

func (*Config) BootstrapPeers 

func (c *Config) BootstrapPeers() ([]peer.AddrInfo, error)

func (*Config) Clone 

func (c *Config) Clone() (*Config, error)

Clone copies the config. Use when updating.

func (*Config) SetBootstrapPeers 

func (c *Config) SetBootstrapPeers(bps []peer.AddrInfo)

type ConnMgr 

type ConnMgr struct {
	Type        string
	LowWater    int
	HighWater   int
	GracePeriod string
}

ConnMgr defines configuration options for the libp2p connection manager

type Datastore 

type Datastore struct {
	StorageMax         string // in B, kB, kiB, MB, ...
	StorageGCWatermark int64  // in percentage to multiply on StorageMax
	GCPeriod           string // in ns, us, ms, s, m, h

	// deprecated fields, use Spec
	Type   string           `json:",omitempty"`
	Path   string           `json:",omitempty"`
	NoSync bool             `json:",omitempty"`
	Params *json.RawMessage `json:",omitempty"`

	Spec map[string]interface{}

	HashOnRead      bool
	BloomFilterSize int
}

Datastore tracks the configuration of the datastore.

func DefaultDatastoreConfig 

func DefaultDatastoreConfig() Datastore

DefaultDatastoreConfig is an internal function exported to aid in testing.

type Discovery 

type Discovery struct {
	MDNS MDNS
}

type Experiments 

type Experiments struct {
	FilestoreEnabled     bool
	UrlstoreEnabled      bool
	ShardingEnabled      bool
	Libp2pStreamMounting bool
	P2pHttpProxy         bool
	QUIC                 bool
	PreferTLS            bool
	StrategicProviding   bool
}

type Gateway 

type Gateway struct {
	HTTPHeaders  map[string][]string // HTTP headers to return with the gateway
	RootRedirect string
	Writable     bool
	PathPrefixes []string
	APICommands  []string
	NoFetch      bool
}

Gateway contains options for the HTTP gateway server.

type Identity 

type Identity struct {
	PeerID  string
	PrivKey string `json:",omitempty"`
}

Identity tracks the configuration of the local node's identity.

func (*Identity) DecodePrivateKey 

func (i *Identity) DecodePrivateKey(passphrase string) (ic.PrivKey, error)

DecodePrivateKey is a helper to decode the users PrivateKey

type Ipns 

type Ipns struct {
	RepublishPeriod string
	RecordLifetime  string

	ResolveCacheSize int
}

type MDNS 

type MDNS struct {
	Enabled bool

	// Time in seconds between discovery rounds
	Interval int
}

type Mounts 

type Mounts struct {
	IPFS           string
	IPNS           string
	FuseAllowOther bool
}

Mounts stores the (string) mount points

type Plugin 

type Plugin struct {
	Disabled bool
	Config   interface{}
}

type Plugins 

type Plugins struct {
	Plugins map[string]Plugin
}

type Profile 

type Profile struct {
	// Description briefly describes the functionality of the profile
	Description string

	// Transform takes ipfs configuration and applies the profile to it
	Transform Transformer
}

Profile contains the profile transformer the description of the profile

type Provider 

type Provider struct {
	Strategy string // Which keys to announce
}

type PubsubConfig 

type PubsubConfig struct {
	// Router can be either floodsub (legacy) or gossipsub (new and
	// backwards compatible).
	Router string

	// DisableSigning disables message signing. Message signing is *enabled*
	// by default.
	DisableSigning bool

	// StrictSignatureVerification enables strict signature verification.
	// When enabled, unsigned messages will be rejected. Eventually, this
	// will be made the default and this option will disappear. Once this
	// happens, networks will either need to completely disable or
	// completely enable message signing.
	StrictSignatureVerification bool
}

type Reprovider 

type Reprovider struct {
	Interval string // Time period to reprovide locally stored objects to the network
	Strategy string // Which keys to announce
}

type Routing 

type Routing struct {
	// Type sets default daemon routing mode.
	Type string
}

Routing defines configuration options for libp2p routing

type Strings 

type Strings []string

Strings is a helper type that (un)marshals a single string to/from a single JSON string and a slice of strings to/from a JSON array of strings.

func (Strings) MarshalJSON 

func (o Strings) MarshalJSON() ([]byte, error)

MarshalJSON conforms to the json.Marshaler interface.

func (*Strings) UnmarshalJSON 

func (o *Strings) UnmarshalJSON(data []byte) error

UnmarshalJSON conforms to the json.Unmarshaler interface.

type SwarmConfig 

type SwarmConfig struct {
	AddrFilters             []string
	DisableBandwidthMetrics bool
	DisableNatPortMap       bool
	DisableRelay            bool
	EnableRelayHop          bool

	// autorelay functionality
	// if true, then the libp2p host will be constructed with autorelay functionality.
	EnableAutoRelay bool
	// if true, then an AutoNATService will be instantiated to facilitate autorelay
	EnableAutoNATService bool

	ConnMgr ConnMgr
}

type Transformer 

type Transformer func(c *Config) error

Transformer is a function which takes configuration and applies some filter to it

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