id

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 Go to latest Published: Aug 11, 2022 License: MPL-2.0 Imports: 9 Imported by: 0

Documentation

Index

Constants

View Source 
const UserIDMaxLength = 255

Variables

View Source 
var (
	InvalidContentURI  = errors.New("invalid Matrix content URI")
	InputNotJSONString = errors.New("input doesn't look like a JSON string")
)
View Source 
var (
	ErrInvalidScheme       = errors.New("matrix URI scheme must be exactly 'matrix'")
	ErrInvalidPartCount    = errors.New("matrix URIs must have exactly 2 or 4 segments")
	ErrInvalidFirstSegment = errors.New("invalid identifier in first segment of matrix URI")
	ErrEmptySecondSegment  = errors.New("the second segment of the matrix URI must not be empty")
	ErrInvalidThirdSegment = errors.New("invalid identifier in third segment of matrix URI")
	ErrEmptyFourthSegment  = errors.New("the fourth segment of the matrix URI must not be empty when the third segment is present")
)

Errors that can happen when parsing matrix: URIs

View Source 
var (
	ErrNotMatrixTo                        = errors.New("that URL is not a matrix.to URL")
	ErrInvalidMatrixToPartCount           = errors.New("matrix.to URLs must have exactly 1 or 2 segments")
	ErrEmptyMatrixToPrimaryIdentifier     = errors.New("the primary identifier in the matrix.to URL is empty")
	ErrInvalidMatrixToPrimaryIdentifier   = errors.New("the primary identifier in the matrix.to URL has an invalid sigil")
	ErrInvalidMatrixToSecondaryIdentifier = errors.New("the secondary identifier in the matrix.to URL has an invalid sigil")
)

Errors that can happen when parsing matrix.to URLs

View Source 
var (
	ErrInvalidUserID         = errors.New("is not a valid user ID")
	ErrNoncompliantLocalpart = errors.New("contains characters that are not allowed")
	ErrUserIDTooLong         = errors.New("the given user ID is longer than 255 characters")
	ErrEmptyLocalpart        = errors.New("empty localparts are not allowed")
)
View Source 
var ErrNotMatrixToOrMatrixURI = errors.New("that URL is not a matrix.to URL nor matrix: URI")
View Source 
var SigilToPathSegment = map[rune]string{
	'$': "e",
	'#': "r",
	'!': "roomid",
	'@': "u",
}

SigilToPathSegment contains a mapping from Matrix identifier sigils to matrix: URI path segments.

View Source 
var ValidLocalpartRegex = regexp.MustCompile("^[0-9a-z-.=_/]+$")

Functions

func DecodeUserLocalpart 

func DecodeUserLocalpart(str string) (string, error)

DecodeUserLocalpart decodes the given string back into the original input string. Returns an error if the given string is not a valid user ID localpart encoding. See https://spec.matrix.org/v1.2/appendices/#mapping-from-other-character-sets

This decodes quoted-printable bytes back into UTF8, and unescapes casing. For example: 

_alph=40_bet=5f50up  =>  Alph@Bet_50up

Returns an error if the input string contains characters outside the range "a-z0-9._=-", has an invalid quote-printable byte (e.g. not hex), or has an invalid _ escaped byte (e.g. "_5").

func EncodeUserLocalpart 

func EncodeUserLocalpart(str string) string

EncodeUserLocalpart encodes the given string into Matrix-compliant user ID localpart form. See https://spec.matrix.org/v1.2/appendices/#mapping-from-other-character-sets

This returns a string with only the characters "a-z0-9._=-". The uppercase range A-Z are encoded using leading underscores ("_"). Characters outside the aforementioned ranges (including literal underscores ("_") and equals ("=")) are encoded as UTF8 code points (NOT NCRs) and converted to lower-case hex with a leading "=". For example: 

Alph@Bet_50up  => _alph=40_bet=5f50up

func ValidateUserLocalpart 

func ValidateUserLocalpart(localpart string) error

ValidateUserLocalpart validates a Matrix user ID localpart using the grammar in https://matrix.org/docs/spec/appendices#user-identifier

Types

type Algorithm 

type Algorithm string

Algorithm is a Matrix message encryption algorithm. https://spec.matrix.org/v1.2/client-server-api/#messaging-algorithm-names 

const (
	AlgorithmOlmV1    Algorithm = "m.olm.v1.curve25519-aes-sha2"
	AlgorithmMegolmV1 Algorithm = "m.megolm.v1.aes-sha2"
)

type BatchID 

type BatchID string

A BatchID is a string identifying a batch of events being backfilled to a room. https://github.com/matrix-org/matrix-doc/pull/2716

func (BatchID) String 

func (batchID BatchID) String() string

type ContentURI 

type ContentURI struct {
	Homeserver string
	FileID     string
}

ContentURI represents a Matrix content URI. https://spec.matrix.org/v1.2/client-server-api/#matrix-content-mxc-uris

func MustParseContentURI 

func MustParseContentURI(uri string) ContentURI

func ParseContentURI 

func ParseContentURI(uri string) (parsed ContentURI, err error)

ParseContentURI parses a Matrix content URI.

func ParseContentURIBytes 

func ParseContentURIBytes(uri []byte) (parsed ContentURI, err error)

func (ContentURI) CUString 

func (uri ContentURI) CUString() ContentURIString

func (ContentURI) IsEmpty 

func (uri ContentURI) IsEmpty() bool

func (*ContentURI) MarshalJSON 

func (uri *ContentURI) MarshalJSON() ([]byte, error)

func (ContentURI) MarshalText 

func (uri ContentURI) MarshalText() ([]byte, error)

func (*ContentURI) Scan 

func (uri *ContentURI) Scan(i interface{}) error

func (ContentURI) String 

func (uri ContentURI) String() string

func (*ContentURI) UnmarshalJSON 

func (uri *ContentURI) UnmarshalJSON(raw []byte) (err error)

func (*ContentURI) UnmarshalText 

func (uri *ContentURI) UnmarshalText(raw []byte) (err error)

func (*ContentURI) Value 

func (uri *ContentURI) Value() (driver.Value, error)

type ContentURIString 

type ContentURIString string

ContentURIString is a string that's expected to be a Matrix content URI. It's useful for delaying the parsing of the content URI to move errors from the event content JSON parsing step to a later step where more appropriate errors can be produced.

func (ContentURIString) Parse 

func (uriString ContentURIString) Parse() (ContentURI, error)

func (ContentURIString) ParseOrIgnore 

func (uriString ContentURIString) ParseOrIgnore() ContentURI

type CrossSigningKey 

type CrossSigningKey struct {
	Key   Ed25519
	First Ed25519
}

type CrossSigningUsage 

type CrossSigningUsage string
const (
	XSUsageMaster      CrossSigningUsage = "master"
	XSUsageSelfSigning CrossSigningUsage = "self_signing"
	XSUsageUserSigning CrossSigningUsage = "user_signing"
)

type Curve25519 

type Curve25519 string

Curve25519 is the base64 representation of an Curve25519 public key

func (Curve25519) String 

func (curve25519 Curve25519) String() string

type Device 

type Device struct {
	UserID      UserID
	DeviceID    DeviceID
	IdentityKey Curve25519
	SigningKey  Ed25519

	Trust   TrustState
	Deleted bool
	Name    string
}

Device contains the identity details of a device and some additional info.

func (*Device) Fingerprint 

func (device *Device) Fingerprint() string

type DeviceID 

type DeviceID string

A DeviceID is an arbitrary string that references a specific device.

func (DeviceID) String 

func (deviceID DeviceID) String() string

type DeviceKeyID 

type DeviceKeyID string

A DeviceKeyID is a string formatted as <algorithm>:<device_id> that is used as the key in deviceid-key mappings.

func NewDeviceKeyID 

func NewDeviceKeyID(algorithm KeyAlgorithm, deviceID DeviceID) DeviceKeyID

func (DeviceKeyID) Parse 

func (deviceKeyID DeviceKeyID) Parse() (Algorithm, DeviceID)

func (DeviceKeyID) String 

func (deviceKeyID DeviceKeyID) String() string

type Ed25519 

type Ed25519 string

Ed25519 is the base64 representation of an Ed25519 public key

func (Ed25519) Fingerprint 

func (ed25519 Ed25519) Fingerprint() string

func (Ed25519) String 

func (ed25519 Ed25519) String() string

type EventID 

type EventID string

An EventID is a string starting with $ that references a specific event.

https://matrix.org/docs/spec/appendices#room-ids-and-event-ids https://matrix.org/docs/spec/rooms/v4#event-ids

func (EventID) String 

func (eventID EventID) String() string

type IdentityKey 

type IdentityKey = Curve25519

type KeyAlgorithm 

type KeyAlgorithm string
const (
	KeyAlgorithmCurve25519       KeyAlgorithm = "curve25519"
	KeyAlgorithmEd25519          KeyAlgorithm = "ed25519"
	KeyAlgorithmSignedCurve25519 KeyAlgorithm = "signed_curve25519"
)

type KeyID 

type KeyID string

A KeyID a string formatted as <keyalgorithm>:<key_id> that is used as the key in one-time-key mappings.

func NewKeyID 

func NewKeyID(algorithm KeyAlgorithm, keyID string) KeyID

func (KeyID) Parse 

func (keyID KeyID) Parse() (KeyAlgorithm, string)

func (KeyID) String 

func (keyID KeyID) String() string

type MatrixURI 

type MatrixURI struct {
	Sigil1 rune
	Sigil2 rune
	MXID1  string
	MXID2  string
	Via    []string
	Action string
}

MatrixURI contains the result of parsing a matrix: URI using ParseMatrixURI

func ParseMatrixToURL 

func ParseMatrixToURL(uri string) (*MatrixURI, error)

ParseMatrixToURL parses a matrix.to URL into the same container as ParseMatrixURI parses matrix: URIs.

func ParseMatrixURI 

func ParseMatrixURI(uri string) (*MatrixURI, error)

ParseMatrixURI implements the matrix: URI parsing algorithm.

Currently specified in https://github.com/matrix-org/matrix-doc/blob/master/proposals/2312-matrix-uri.md#uri-parsing-algorithm

func ParseMatrixURIOrMatrixToURL 

func ParseMatrixURIOrMatrixToURL(uri string) (*MatrixURI, error)

ParseMatrixURIOrMatrixToURL parses the given matrix.to URL or matrix: URI into a unified representation.

func ProcessMatrixToURL 

func ProcessMatrixToURL(uri *url.URL) (*MatrixURI, error)

ProcessMatrixToURL is the equivalent of ProcessMatrixURI for matrix.to URLs.

func ProcessMatrixURI 

func ProcessMatrixURI(uri *url.URL) (*MatrixURI, error)

ProcessMatrixURI implements steps 2-7 of the matrix: URI parsing algorithm (i.e. everything except parsing the URI itself, which is done with url.Parse or ParseMatrixURI)

func (*MatrixURI) EventID 

func (uri *MatrixURI) EventID() EventID

EventID returns the event ID from the URI if the primary identifier is a room ID or alias and the secondary identifier is an event ID.

func (*MatrixURI) MatrixToURL 

func (uri *MatrixURI) MatrixToURL() string

MatrixToURL converts to parsed matrix: URI into a matrix.to URL

func (*MatrixURI) PrimaryIdentifier 

func (uri *MatrixURI) PrimaryIdentifier() string

PrimaryIdentifier returns the first Matrix identifier in the URI. Currently room IDs, room aliases and user IDs can be in the primary identifier slot.

func (*MatrixURI) RoomAlias 

func (uri *MatrixURI) RoomAlias() RoomAlias

RoomAlias returns the room alias from the URI if the primary identifier is a room alias.

func (*MatrixURI) RoomID 

func (uri *MatrixURI) RoomID() RoomID

RoomID returns the room ID from the URI if the primary identifier is a room ID.

func (*MatrixURI) SecondaryIdentifier 

func (uri *MatrixURI) SecondaryIdentifier() string

SecondaryIdentifier returns the second Matrix identifier in the URI. Currently only event IDs can be in the secondary identifier slot.

func (*MatrixURI) String 

func (uri *MatrixURI) String() string

String converts the parsed matrix: URI back into the string representation.

func (*MatrixURI) UserID 

func (uri *MatrixURI) UserID() UserID

UserID returns the user ID from the URI if the primary identifier is a user ID.

type OlmMsgType 

type OlmMsgType int

OlmMsgType is an Olm message type 

const (
	OlmMsgTypePreKey OlmMsgType = 0
	OlmMsgTypeMsg    OlmMsgType = 1
)

type RoomAlias 

type RoomAlias string

A RoomAlias is a string starting with # that can be resolved into. https://matrix.org/docs/spec/appendices#room-aliases

func NewRoomAlias 

func NewRoomAlias(localpart, server string) RoomAlias

func (RoomAlias) EventURI 

func (roomAlias RoomAlias) EventURI(eventID EventID) *MatrixURI

func (RoomAlias) String 

func (roomAlias RoomAlias) String() string

func (RoomAlias) URI 

func (roomAlias RoomAlias) URI() *MatrixURI

type RoomID 

type RoomID string

A RoomID is a string starting with ! that references a specific room. https://matrix.org/docs/spec/appendices#room-ids-and-event-ids

func (RoomID) EventURI 

func (roomID RoomID) EventURI(eventID EventID, via ...string) *MatrixURI

func (RoomID) String 

func (roomID RoomID) String() string

func (RoomID) URI 

func (roomID RoomID) URI(via ...string) *MatrixURI

type SenderKey 

type SenderKey = Curve25519

type SessionID 

type SessionID string

A SessionID is an arbitrary string that identifies an Olm or Megolm session.

func (SessionID) String 

func (sessionID SessionID) String() string

type SigningKey 

type SigningKey = Ed25519

type TrustState 

type TrustState int

TrustState determines how trusted a device is. 

const (
	TrustStateBlacklisted          TrustState = -100
	TrustStateUnset                TrustState = 0
	TrustStateUnknownDevice        TrustState = 10
	TrustStateForwarded            TrustState = 20
	TrustStateCrossSignedUntrusted TrustState = 50
	TrustStateCrossSignedTOFU      TrustState = 100
	TrustStateCrossSignedVerified  TrustState = 200
	TrustStateVerified             TrustState = 300
	TrustStateInvalid              TrustState = (1 << 31) - 1
)

func ParseTrustState 

func ParseTrustState(val string) TrustState

func (*TrustState) MarshalText 

func (ts *TrustState) MarshalText() ([]byte, error)

func (TrustState) String 

func (ts TrustState) String() string

func (*TrustState) UnmarshalText 

func (ts *TrustState) UnmarshalText(data []byte) error

type UserID 

type UserID string

UserID represents a Matrix user ID. https://matrix.org/docs/spec/appendices#user-identifiers

func NewEncodedUserID 

func NewEncodedUserID(localpart, homeserver string) UserID

func NewUserID 

func NewUserID(localpart, homeserver string) UserID

func (UserID) Homeserver 

func (userID UserID) Homeserver() string

func (UserID) Localpart 

func (userID UserID) Localpart() string

func (UserID) Parse 

func (userID UserID) Parse() (localpart, homeserver string, err error)

Parse parses the user ID into the localpart and server name.

Note that this only enforces very basic user ID formatting requirements: user IDs start with a @, and contain a : after the @. If you want to enforce localpart validity, see the ParseAndValidate and ValidateUserLocalpart functions.

func (UserID) ParseAndDecode 

func (userID UserID) ParseAndDecode() (localpart, homeserver string, err error)

func (UserID) ParseAndValidate 

func (userID UserID) ParseAndValidate() (localpart, homeserver string, err error)

ParseAndValidate parses the user ID into the localpart and server name like Parse, and also validates that the localpart is allowed according to the user identifiers spec.

func (UserID) String 

func (userID UserID) String() string

func (UserID) URI 

func (userID UserID) URI() *MatrixURI

URI returns the user ID as a MatrixURI struct, which can then be stringified into a matrix: URI or a matrix.to URL.

This does not parse or validate the user ID. Use the ParseAndValidate method if you want to ensure the user ID is valid first.

Source Files

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