thread

package
v0.1.13 Latest Latest
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 Go to latest Published: Apr 4, 2020 License: MIT Imports: 21 Imported by: 73

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Index

Constants

View Source 
const (
	// Name is the protocol slug.
	Name = "thread"
	// Code is the protocol code.
	Code = 406
	// Version is the current protocol version.
	Version = "0.0.1"
	// Protocol is the threads protocol tag.
	Protocol protocol.ID = "/" + Name + "/" + Version
)
View Source 
const (
	V1 = 0x01
)

Versions.

Variables

View Source 
var (
	// ErrVarintBuffSmall means that a buffer passed to the ID parser was not
	// long enough, or did not contain an invalid ID.
	ErrVarintBuffSmall = fmt.Errorf("reading varint: buffer too small")

	// ErrVarintTooBig means that the varint in the given ID was above the
	// limit of 2^64.
	ErrVarintTooBig = fmt.Errorf("reading varint: varint bigger than 64bits" +
		" and not supported")

	// ErrIDTooShort means that the ID passed to decode was not long
	// enough to be a valid ID.
	ErrIDTooShort = fmt.Errorf("id too short")
)
View Source 
var (
	// ErrInvalidKey indicates an invalid byte slice was given to KeyFromBytes.
	ErrInvalidKey = fmt.Errorf("invalid key")
)
View Source 
var ErrInvalidToken = fmt.Errorf("invalid thread token")

ErrInvalidToken indicates the token is invalid.

View Source 
var ErrTokenNotFound = fmt.Errorf("thread token not found")

ErrTokenNotFound indicates the token was not found in the context.

View Source 
var Undef = ID{}

Undef can be used to represent a nil or undefined Cid, using Cid{} directly is also acceptable.

Functions

func ExtractEncoding 

func ExtractEncoding(v string) (mbase.Encoding, error)

Extract the encoding from an ID. If Decode on the same string did not return an error neither will this function.

func NewTokenContext added in v0.1.13 

func NewTokenContext(ctx context.Context, token Token) context.Context

NewTokenContext adds Token to a context.

func ToAddr added in v0.1.12 

func ToAddr(id ID) ma.Multiaddr

ToAddr returns ID wrapped as a multiaddress.

Types

type Credentials added in v0.1.13 

type Credentials struct {
	Secure bool
}

Credentials implements PerRPCCredentials, allowing context values to be included in request metadata.

func (Credentials) GetRequestMetadata added in v0.1.13 

func (c Credentials) GetRequestMetadata(ctx context.Context, _ ...string) (map[string]string, error)

func (Credentials) RequireTransportSecurity added in v0.1.13 

func (c Credentials) RequireTransportSecurity() bool

type ID 

type ID struct {
	// contains filtered or unexported fields
}

ID represents a self-describing thread identifier. It is formed by a Version, a Variant, and a random number of a given length.

func Cast 

func Cast(data []byte) (ID, error)

Cast takes an ID data slice, parses it and returns an ID. For IDV1, the data buffer is in the form: 

<version><variant><random-number>

Please use decode when parsing a regular ID string, as Cast does not expect multibase-encoded data. Cast accepts the output of ID.Bytes().

func Decode 

func Decode(v string) (ID, error)

Decode parses an ID-encoded string and returns an ID object. For IDV1, an ID-encoded string is primarily a multibase string: 

<multibase-type-code><base-encoded-string>

The base-encoded string represents a:

<version><variant><random-number>

func FromAddr added in v0.1.12 

func FromAddr(addr ma.Multiaddr) (ID, error)

FromAddr returns ID from a multiaddress if present.

func NewIDV1 

func NewIDV1(variant Variant, size uint8) ID

NewIDV1 returns a new random ID using the given variant.

func (ID) Bytes 

func (i ID) Bytes() []byte

Bytes returns the byte representation of an ID. The output of bytes can be parsed back into an ID with Cast().

func (ID) Defined 

func (i ID) Defined() bool

Defined returns true if an ID is defined. Calling any other methods on an undefined ID will result in undefined behavior.

func (ID) Encode 

func (i ID) Encode(base mbase.Encoder) string

Encode return the string representation of an ID in a given base when applicable.

func (ID) Equals 

func (i ID) Equals(o ID) bool

Equals checks that two IDs are the same.

func (ID) KeyString 

func (i ID) KeyString() string

KeyString returns the binary representation of the ID as a string.

func (ID) Loggable 

func (i ID) Loggable() map[string]interface{}

Loggable returns a Loggable (as defined by https://godoc.org/github.com/ipfs/go-log).

func (ID) MarshalBinary 

func (i ID) MarshalBinary() ([]byte, error)

MarshalBinary is equivalent to Bytes(). It implements the encoding.BinaryMarshaler interface.

func (ID) MarshalText 

func (i ID) MarshalText() ([]byte, error)

MarshalText is equivalent to String(). It implements the encoding.TextMarshaler interface.

func (ID) String 

func (i ID) String() string

String returns the default string representation of an ID. Currently, Base32 is used as the encoding for the multibase string.

func (ID) StringOfBase 

func (i ID) StringOfBase(base mbase.Encoding) (string, error)

String returns the string representation of an ID encoded is selected base.

func (*ID) UnmarshalBinary 

func (i *ID) UnmarshalBinary(data []byte) error

UnmarshalBinary is equivalent to Cast(). It implements the encoding.BinaryUnmarshaler interface.

func (*ID) UnmarshalText 

func (i *ID) UnmarshalText(text []byte) error

UnmarshalText is equivalent to Decode(). It implements the encoding.TextUnmarshaler interface.

func (ID) Variant 

func (i ID) Variant() Variant

Variant returns the variant of an ID.

func (ID) Version 

func (i ID) Version() uint64

Version returns the ID version.

type IDSlice 

type IDSlice []ID

IDSlice for sorting threads.

func (IDSlice) Len 

func (s IDSlice) Len() int

func (IDSlice) Less 

func (s IDSlice) Less(i, j int) bool

func (IDSlice) Swap 

func (s IDSlice) Swap(i, j int)

type Identity added in v0.1.13 

type Identity interface {
	// Sign the given bytes cryptographically.
	Sign(context.Context, []byte) ([]byte, error)
	// Return a public key paired with this identity.
	GetPublic() PubKey
}

Identity represents an entity capable of signing a message and returning the associated public key for verification. In many cases, this will just be a private key, but callers can use any setup that suits their needs.

func NewLibp2pIdentity added in v0.1.13 

func NewLibp2pIdentity(key crypto.PrivKey) Identity

NewLibp2pIdentity returns a new Libp2pIdentity.

type Info 

type Info struct {
	ID    ID
	Key   Key
	Logs  []LogInfo
	Addrs []ma.Multiaddr
}

Info holds thread logs, keys and addresses.

func (Info) GetOwnLog added in v0.1.6 

func (i Info) GetOwnLog() *LogInfo

GetOwnLog returns the first log found with a private key.

type Key added in v0.1.12 

type Key struct {
	// contains filtered or unexported fields
}

Key is a thread encryption key with two components. Service key is used to encrypt outer log record linkages. Read key is used to encrypt inner record events.

func KeyFromBytes added in v0.1.12 

func KeyFromBytes(b []byte) (k Key, err error)

KeyFromBytes returns a key by wrapping k.

func KeyFromString added in v0.1.12 

func KeyFromString(s string) (k Key, err error)

KeyFromString returns a key by decoding a base32-encoded string.

func NewKey added in v0.1.12 

func NewKey(sk, rk *sym.Key) Key

NewKey wraps service and read keys.

func NewRandomKey added in v0.1.12 

func NewRandomKey() Key

NewRandomKey returns a random key, which includes a service and read key.

func NewRandomServiceKey added in v0.1.12 

func NewRandomServiceKey() Key

NewRandomServiceKey returns a random service-only key.

func NewServiceKey added in v0.1.12 

func NewServiceKey(sk *sym.Key) Key

NewServiceKey wraps a service-only key.

func (Key) Bytes added in v0.1.12 

func (k Key) Bytes() []byte

Bytes returns raw key bytes.

func (Key) CanRead added in v0.1.12 

func (k Key) CanRead() bool

CanRead returns whether or not read key is available.

func (Key) Defined added in v0.1.12 

func (k Key) Defined() bool

Defined returns whether or not key has any defined components. Since it's not possible to have a read key w/o a service key, we just need to check service key.

func (Key) MarshalBinary added in v0.1.12 

func (k Key) MarshalBinary() ([]byte, error)

MarshalBinary implements BinaryMarshaler.

func (Key) Read added in v0.1.12 

func (k Key) Read() *sym.Key

Read returns the read key.

func (Key) Service added in v0.1.12 

func (k Key) Service() *sym.Key

Service returns the service key.

func (Key) String added in v0.1.12 

func (k Key) String() string

String returns the base32-encoded string representation of raw key bytes. For example, Full: "brv7t5l2h55uklz5qwpntcat26csaasfchzof3emmdy6povabcd3a2to2qdkqdkto2prfhizerqqudqsdvwherbiy4nazqxjejgdr4oy" Service: "bp2vvqody5zm6yqycsnazb4kpqvycbdosos352zvpsorxce5koh7q"

type Libp2pIdentity added in v0.1.13 

type Libp2pIdentity struct {
	crypto.PrivKey
}

Libp2pIdentity wraps crypto.PrivKey, overwriting GetPublic with thread.PubKey.

func (*Libp2pIdentity) GetPublic added in v0.1.13 

func (p *Libp2pIdentity) GetPublic() PubKey

func (*Libp2pIdentity) Sign added in v0.1.13 

func (p *Libp2pIdentity) Sign(_ context.Context, msg []byte) ([]byte, error)

type Libp2pPubKey added in v0.1.13 

type Libp2pPubKey struct {
	crypto.PubKey
}

Libp2pPubKey wraps crypto.PubKey.

func (*Libp2pPubKey) MarshalBinary added in v0.1.13 

func (p *Libp2pPubKey) MarshalBinary() ([]byte, error)

func (*Libp2pPubKey) String added in v0.1.13 

func (p *Libp2pPubKey) String() string

func (*Libp2pPubKey) UnmarshalBinary added in v0.1.13 

func (p *Libp2pPubKey) UnmarshalBinary(bytes []byte) (err error)

func (*Libp2pPubKey) UnmarshalString added in v0.1.13 

func (p *Libp2pPubKey) UnmarshalString(str string) error

type LogInfo 

type LogInfo struct {
	ID      peer.ID
	PubKey  crypto.PubKey
	PrivKey crypto.PrivKey
	Addrs   []ma.Multiaddr
	Head    cid.Cid
}

LogInfo holds log keys, addresses, and heads.

type PubKey added in v0.1.13 

type PubKey interface {
	encoding.BinaryMarshaler
	encoding.BinaryUnmarshaler

	// String encodes the public key into a base64 string.
	fmt.Stringer
	// UnmarshalString decodes a public key from a base64 string.
	UnmarshalString(string) error
	// Verify that 'sig' is the signed hash of 'data'
	Verify(data []byte, sig []byte) (bool, error)
}

Pubkey can be anything that provides a verify method.

func NewLibp2pPubKey added in v0.1.13 

func NewLibp2pPubKey(key crypto.PubKey) PubKey

NewLibp2pPubKey returns a new PubKey.

func ValidateToken added in v0.1.13 

func ValidateToken(issuer crypto.PrivKey, token Token) (PubKey, error)

ValidateToken returns non-nil if token was issued by issuer. If token is present and valid, the embedded public key is returned. If token is not present, both the returned public key and error will be nil.

type Token added in v0.1.13 

type Token string

Token is a concrete type for a JWT token string, which provides a claim to an identity.

func NewToken added in v0.1.13 

func NewToken(issuer crypto.PrivKey, key PubKey) (tok Token, err error)

NewToken issues a new JWT token from issuer for the given pubic key.

func NewTokenFromMD added in v0.1.13 

func NewTokenFromMD(ctx context.Context) (tok Token, err error)

NewTokenFromMD returns Token from the given context, if present.

func TokenFromContext added in v0.1.13 

func TokenFromContext(ctx context.Context) (Token, bool)

TokenFromContext returns Token from a context.

type Variant added in v0.1.7 

type Variant uint64

Variant is a type for thread variants. 

const (
	Raw              Variant = 0x55
	AccessControlled Variant = 0x70 // Supports access control lists
)

Variants.

func (Variant) String added in v0.1.7 

func (v Variant) String() string

Source Files

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