public boolean login()

in src/main/java/org/apache/commons/net/pop3/POP3Client.java [279:315]

• 30 lines of code
• 5 McCabe index (conditional complexity)

    public boolean login(final String username, String timestamp, final String secret) throws IOException, NoSuchAlgorithmException {
        int i;
        final byte[] digest;
        final StringBuilder buffer;
        final StringBuilder digestBuffer;
        final MessageDigest md5;

        if (getState() != AUTHORIZATION_STATE) {
            return false;
        }

        md5 = MessageDigest.getInstance("MD5");
        timestamp += secret;
        digest = md5.digest(timestamp.getBytes(getCharset()));
        digestBuffer = new StringBuilder(128);

        for (i = 0; i < digest.length; i++) {
            final int digit = digest[i] & 0xff;
            if (digit <= 15) { // Add leading zero if necessary (NET-351)
                digestBuffer.append("0");
            }
            digestBuffer.append(Integer.toHexString(digit));
        }

        buffer = new StringBuilder(256);
        buffer.append(username);
        buffer.append(' ');
        buffer.append(digestBuffer.toString());

        if (sendCommand(POP3Command.APOP, buffer.toString()) != POP3Reply.OK) {
            return false;
        }

        setState(TRANSACTION_STATE);

        return true;
    }