private Session createSession()

in server/src/main/java/org/apache/hupa/server/InMemoryIMAPStoreCache.java [208:274]
61 lines of code
14 McCabe index (conditional complexity)

    private Session createSession(final User user) {
        Properties props = new Properties();
        Settings settings = user.getSettings();

        props.setProperty("mail.mime.decodetext.strict", "false");
        if (settings.getImapSecure()) {
            props.setProperty("mail.store.protocol", "imaps");
            props.setProperty("mail.imaps.connectionpoolsize", connectionPoolSize + "");
            props.setProperty("mail.imaps.connectionpooltimeout", timeout + "");
            if (trustSSL) {
                props.setProperty("mail.imaps.ssl.trust", settings.getImapServer());
            }
        } else {
            props.setProperty("mail.imap.connectionpoolsize", connectionPoolSize + "");
            props.setProperty("mail.imap.connectionpooltimeout", timeout + "");
        }

        if (settings.getSmtpSecure()) {
            if (settings.getSmtpPort() == 587) {
                props.setProperty("mail.smtp.starttls.enable", "true");
                props.setProperty("mail.transport.protocol.rfc822", "smtp");
            } else {
                props.setProperty("mail.transport.protocol.rfc822", "smtps");
                props.setProperty("mail.smtps.ssl.enable", "true");
                if (trustSSL) {
                    props.setProperty("mail.smtps.ssl.trust", settings.getSmtpServer());
                }
            }
        } else {
            props.setProperty("mail.transport.protocol.rfc822", "smtp");
        }

        props.setProperty("mail.smtp.host", settings.getSmtpServer());
        props.setProperty("mail.smtps.host", settings.getSmtpServer());
        props.setProperty("mail.smtp.port", settings.getSmtpPort() + "");
        props.setProperty("mail.smtps.port", settings.getSmtpPort() + "");

        Authenticator auth = null;
        if (settings.getSmtpAuth() && user.getPassword() != null && user.getName() != null) {
            props.setProperty("mail.smtp.auth", "true");
            props.setProperty("mail.smtps.auth", "true");
            auth = new javax.mail.Authenticator() {
                protected PasswordAuthentication getPasswordAuthentication() {
                    String userId = user.getId();
                    StackTraceElement[] sElms = Thread.currentThread().getStackTrace();
                    for (StackTraceElement e : sElms) {
                        if (e.getClassName().equals(InMemoryIMAPStoreCache.class.getName()) && e.getMethodName().equals("get")) {
                            // We try with the id part the second time (unix imap/smtp auth compatible)
                            if (userId.matches(".*@.*")) {
                                userId = userId.replaceFirst("@.*", "");
                                user.setId(userId);
                                break;
                            } else {
                                return null;
                            }
                        }
                    }
                    return new PasswordAuthentication(userId, user.getPassword());
                }
            };
        }

        Session ses = Session.getInstance(props, auth);
        ses.setDebug(debug && logger.isDebugEnabled());
        logger.debug("Created session " + user.getName() + "\n" + settings + "\n"+ props.toString().replaceAll(",", ",\n "));
        return ses;
    }