oauth2

Documentation

Index

• type Auth
  • func (auth *Auth) Next(fromServer []byte, more bool) (toServer []byte, err error)
  • func (auth *Auth) Start(server *smtp.ServerInfo) (proto string, toServer []byte, err error)
• type Credentials
• type Token
  • func RefreshToken(ctx context.Context, creds Credentials, refreshToken string) (_ *Token, err error)
• type TokenStore
  • func NewTokenStore(creds Credentials, token Token) *TokenStore
  • func (s *TokenStore) Token(ctx context.Context) (_ *Token, err error)

Types

type Auth

type Auth struct {
	UserEmail string

	Storage *TokenStore
}

Auth is XOAUTH2 implementation of smtp.Auth interface

func (*Auth) Next

func (auth *Auth) Next(fromServer []byte, more bool) (toServer []byte, err error)

Next sends empty response to solve SASL challenge if response code is 334

func (*Auth) Start

func (auth *Auth) Start(server *smtp.ServerInfo) (proto string, toServer []byte, err error)

Start returns proto and auth credentials for first auth msg

type Credentials

type Credentials struct {
	ClientID     string `json:"client_id"`
	ClientSecret string `json:"client_secret"`
	TokenURI     string `json:"token_uri"`
}

Credentials represents OAuth2 credentials

type Token

type Token struct {
	AccessToken  string    `json:"access_token"`
	RefreshToken string    `json:"refresh_token"`
	Type         string    `json:"token_type"`
	Expiry       time.Time `json:"expiry"`
}

Token represents OAuth2 token

func RefreshToken

func RefreshToken(ctx context.Context, creds Credentials, refreshToken string) (_ *Token, err error)

RefreshToken is a helper method that refreshes token with given credentials and OUATH2 refresh token

type TokenStore

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

TokenStore is a thread safe storage for OAuth2 token and credentials

func NewTokenStore

func NewTokenStore(creds Credentials, token Token) *TokenStore

NewTokenStore creates new instance of token storage

func (*TokenStore) Token

func (s *TokenStore) Token(ctx context.Context) (_ *Token, err error)

Token retrieves token in a thread safe way and refreshes it if needed