rememberme

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

type Token struct {
	Username   string
	Identifier string
	Revoked    bool
	UserAgent  string
	Created    int64
	LastUsed   int64
}

type TokenManager interface {
	// Add adds the token to the underlying datastore
	//
	// This function will return ErrTokenDuplicate if the given Username
	// Identifier combination already exists in the datastore
	Add(ctx context.Context, token Token) (<-chan *Token, <-chan error)

	// Delete deletes the token permanently from the underlying datastore.
	//
	// Once deleted, a token cannot be recovered
	Delete(ctx context.Context, token Token) <-chan error

	// Purge removes tokens belonging to a given user last used before or equal
	// to the cutoff time.
	//
	// This function DELETES all matching tokens, regardless of whether the
	// token has been revoked.
	Purge(ctx context.Context, username string, cutoff time.Time) <-chan error

	// Revoke revokes a given token by marking the Revoked field to true.
	//
	// Although both revoking a token and removing a token will make the
	// ValidateToken call fail, RevokeToken leaves the token stored in the data
	// store.
	Revoke(ctx context.Context, token Token) (<-chan *Token, <-chan error)

	// Validate checks if the given token is valid.
	//
	// A token is considered valid if it meets the following conditions:
	//
	//   1. The Username/Identifier combination exists in the datastore
	//   2. The token has not been revoked.
	//
	// This method returns a ErrTokenInvalid if the token cannot be validated.
	// This method also passes through any underlying datastore errors to the
	// caller.
	//
	// If the token is valid, its LastUsed will be updated to the current time
	// to record the fact that the token has recently been used.
	Validate(ctx context.Context, token Token) (<-chan *Token, <-chan error)
}