C++ (Cpp) smtp_starttls Examples

Example #1

File: gsasl.c Project: cktan/toolchain

static int
starttls (void)
{
  if (args_info.imap_flag)
    return imap_starttls ();
  if (args_info.smtp_flag)
    return smtp_starttls ();

  return 1;
}

Example #2

File: smtp.c Project: moreorless/claws-mail

static gint smtp_session_recv_msg(Session *session, const gchar *msg)
{
	SMTPSession *smtp_session = SMTP_SESSION(session);
	gboolean cont = FALSE;

	if (strlen(msg) < 4) {
		log_warning(_("bad SMTP response\n"));
		return -1;
	}

	switch (smtp_session->state) {
	case SMTP_EHLO:
	case SMTP_STARTTLS:
	case SMTP_AUTH:
	case SMTP_AUTH_PLAIN:
	case SMTP_AUTH_LOGIN_USER:
	case SMTP_AUTH_LOGIN_PASS:
	case SMTP_AUTH_CRAM_MD5:
		log_print("ESMTP< %s\n", msg);
		break;
	default:
		log_print("SMTP< %s\n", msg);
		break;
	}

	if (msg[0] == '5' && msg[1] == '0' &&
	    (msg[2] == '4' || msg[2] == '3' || msg[2] == '1')) {
		log_warning(_("error occurred on SMTP session\n"));
		smtp_session->state = SMTP_ERROR;
		smtp_session->error_val = SM_ERROR;
		g_free(smtp_session->error_msg);
		smtp_session->error_msg = g_strdup(msg);
		return -1;
	}

	if (!strncmp(msg, "535", 3)) {
		log_warning(_("error occurred on authentication\n"));
		smtp_session->state = SMTP_ERROR;
		smtp_session->error_val = SM_AUTHFAIL;
		g_free(smtp_session->error_msg);
		smtp_session->error_msg = g_strdup(msg);
		return -1;
	}

	if (msg[0] != '1' && msg[0] != '2' && msg[0] != '3') {
		log_warning(_("error occurred on SMTP session\n"));
		smtp_session->state = SMTP_ERROR;
		smtp_session->error_val = SM_ERROR;
		g_free(smtp_session->error_msg);
		smtp_session->error_msg = g_strdup(msg);
		return -1;
	}

	if (msg[3] == '-')
		cont = TRUE;
	else if (msg[3] != ' ' && msg[3] != '\0') {
		log_warning(_("bad SMTP response\n"));
		smtp_session->state = SMTP_ERROR;
		smtp_session->error_val = SM_UNRECOVERABLE;
		return -1;
	}

	/* ignore all multiline responses except for EHLO */
	if (cont && smtp_session->state != SMTP_EHLO)
		return session_recv_msg(session);

	switch (smtp_session->state) {
	case SMTP_READY:
		if (strstr(msg, "ESMTP"))
			smtp_session->is_esmtp = TRUE;
	case SMTP_CONNECTED:
#if USE_OPENSSL
		if (smtp_session->user || session->ssl_type != SSL_NONE ||
		    smtp_session->is_esmtp)
#else
		if (smtp_session->user || smtp_session->is_esmtp)
#endif
			smtp_ehlo(smtp_session);
		else
			smtp_helo(smtp_session);
		break;
	case SMTP_HELO:
		smtp_from(smtp_session);
		break;
	case SMTP_EHLO:
		smtp_ehlo_recv(smtp_session, msg);
		if (cont == TRUE)
			break;
		if (smtp_session->max_message_size > 0
		&& smtp_session->max_message_size < smtp_session->send_data_len) {
			log_warning(_("Message is too big "
			      "(Maximum size is %s)\n"), 
			      to_human_readable(
			       (off_t)(smtp_session->max_message_size)));

			smtp_session->state = SMTP_ERROR;
			smtp_session->error_val = SM_ERROR;
			return -1;
		}
#if USE_OPENSSL
		if (session->ssl_type == SSL_STARTTLS &&
		    smtp_session->tls_init_done == FALSE) {
			smtp_starttls(smtp_session);
			break;
		}
#endif
		if (smtp_session->user) {
			if (smtp_auth(smtp_session) != SM_OK)
				smtp_from(smtp_session);
		} else
			smtp_from(smtp_session);
		break;
	case SMTP_STARTTLS:
#if USE_OPENSSL
		if (session_start_tls(session) < 0) {
			log_warning(_("can't start TLS session\n"));
			smtp_session->state = SMTP_ERROR;
			smtp_session->error_val = SM_ERROR;
			return -1;
		}
		smtp_session->tls_init_done = TRUE;
		smtp_ehlo(smtp_session);
#endif
		break;
	case SMTP_AUTH:
		smtp_auth_recv(smtp_session, msg);
		break;
	case SMTP_AUTH_LOGIN_USER:
		smtp_auth_login_user_recv(smtp_session, msg);
		break;
	case SMTP_AUTH_PLAIN:
	case SMTP_AUTH_LOGIN_PASS:
	case SMTP_AUTH_CRAM_MD5:
		smtp_from(smtp_session);
		break;
	case SMTP_FROM:
		if (smtp_session->cur_to)
			smtp_rcpt(smtp_session);
		break;
	case SMTP_RCPT:
		if (smtp_session->cur_to)
			smtp_rcpt(smtp_session);
		else
			smtp_data(smtp_session);
		break;
	case SMTP_DATA:
		smtp_send_data(smtp_session);
		break;
	case SMTP_EOM:
		smtp_quit(smtp_session);
		break;
	case SMTP_QUIT:
		session_disconnect(session);
		break;
	case SMTP_ERROR:
	default:
		log_warning(_("error occurred on SMTP session\n"));
		smtp_session->error_val = SM_ERROR;
		return -1;
	}

	if (cont)
		return session_recv_msg(session);

	return 0;
}