示例#1
0
// Given a raw slice of bytes, construct a Vote
// @@TODO: A custom splitter that checks for errors as it goes might be faster than splitting the whole thing and then looping the results to check for errors.
func NewVote(rawVote []byte) (Vote, error) {
	if len(rawVote) > maxVoteSize {
		return Vote{}, ErrVoteTooBig
	}
	vote := Vote(strings.Split(string(rawVote), "\n"))
	if len(vote) > MaxVoteOptions {
		return Vote{}, errors.Wrapf(ErrVoteTooManyOptions, "A vote may have a maximum of %i option lines", MaxVoteOptions)
	}
	for i, voteItem := range vote {
		if len(voteItem) > MaxVoteBytes {
			return Vote{}, errors.Wrapf(ErrVoteOptionTooBig, "Vote item as position %i is too large. Each vote-item line may have a maximum of %i bytes", i, MaxVoteBytes)
		}
	}
	return vote, nil
}
示例#2
0
// Create a new PublicKey from a base64 encoded item, as we would get in a PUT or POST request
// This function also performs error checking to make sure the key is valid.
func NewPublicKey(base64PublicKey []byte) (PublicKey, error) {
	decodedLen := base64.StdEncoding.DecodedLen(len(base64PublicKey))
	dbuf := make([]byte, decodedLen)
	n, err := base64.StdEncoding.Decode(dbuf, base64PublicKey)
	if err != nil {
		return nil, errors.Wrap(err, ErrPublicKeyBase64)
	}
	pk := PublicKey(dbuf[:n])

	// Check the key length
	keylen, err := pk.KeyLength()
	if err != nil {
		return nil, err
	}
	if MinPublicKeySize < absoluteMinPublicKeySize {
		panic("MinPublicKeySize has been set less than the allowed absoluteMinPublicKeySize of 2048")
	}
	if keylen < MinPublicKeySize {
		return nil, errors.Wrapf(ErrPubicMinKeySize, "Please use at least %s bits for public-key", MinPublicKeySize)
	}

	return pk, nil
}
示例#3
0
func FmtWrappingFoo() error {
	return errors.Wrapf(ErrFoo, "%s", Strger)
}