private void sendNewSuspectEvent(InetAddress address, Long rtt, String foreignSource) {
EventBuilder eb =
new EventBuilder(EventConstants.NEW_SUSPECT_INTERFACE_EVENT_UEI, "OpenNMS.Discovery");
eb.setInterface(address);
eb.setHost(InetAddressUtils.getLocalHostName());
eb.addParam("RTT", rtt);
if (foreignSource != null) {
eb.addParam("foreignSource", foreignSource);
}
try {
m_ipc_manager.sendNow(eb.getEvent());
LOG.debug("Sent event: {}", EventConstants.NEW_SUSPECT_INTERFACE_EVENT_UEI);
} catch (Throwable t) {
LOG.warn("run: unexpected throwable exception caught during send to middleware", t);
}
}
/** * This class is designed to be used by the capabilities daemon to test for the existance of an SMTP * server on remote interfaces. The class implements the Plugin interface that allows it to be used * along with other plugins by the daemon. * * @author <a href="mailto:[email protected]">Sowmya</a> * @author <a href="mailto:[email protected]">Weave</a> * @author <a href="http://www.opennms.org">OpenNMS</a> */ public final class SmtpPlugin extends AbstractPlugin { /** * The regular expression test used to determine if the reply is a multi line reply. A multi line * reply is one that each line, but the last, is in the form of "ddd-" where 'ddd' is the result * code. */ private static final RE MULTILINE_RESULT; /** The capability name of the plugin. */ private static final String PROTOCOL_NAME = "SMTP"; /** The default port on which the host is checked to see if it supports SMTP. */ private static final int DEFAULT_PORT = 25; /** Default number of retries for SMTP requests. */ private static final int DEFAULT_RETRY = 0; /** Default timeout (in milliseconds) for SMTP requests. */ private static final int DEFAULT_TIMEOUT = 5000; // in milliseconds /** The name of the local host. */ private static final String LOCALHOST_NAME = InetAddressUtils.getLocalHostName(); static { try { MULTILINE_RESULT = new RE("^[1-5][0-9]{2}-"); } catch (RESyntaxException re) { throw new java.lang.reflect.UndeclaredThrowableException(re); } } /** * Test to see if the passed host-port pair is the endpoint for an SMTP server. If there is an * SMTP server at that destination then a value of true is returned from the method. Otherwise a * false value is returned to the caller. * * @param host The remote host to connect to. * @param port The remote port on the host. * @return True if server supports SMTP on the specified port, false otherwise */ private boolean isServer(InetAddress host, int port, int retries, int timeout) { // get a log to send errors // ThreadCategory log = ThreadCategory.getInstance(getClass()); boolean isAServer = false; for (int attempts = 0; attempts <= retries && !isAServer; attempts++) { Socket socket = null; try { socket = new Socket(); socket.connect(new InetSocketAddress(host, port), timeout); socket.setSoTimeout(timeout); log.debug("SmtpPlugin: connected to host: " + host + " on port: " + port); // Allocate a line reader // BufferedReader lineRdr = new BufferedReader(new InputStreamReader(socket.getInputStream())); // Read responses from the server. The initial line should just // be a banner, but go ahead and check for multiline response. // String result = null; do { result = lineRdr.readLine(); } while (result != null && result.length() > 0 && MULTILINE_RESULT.match(result)); if (result == null || result.length() == 0) { log.info("Received truncated response from SMTP server " + InetAddressUtils.str(host)); continue; } // Tokenize the last line result // StringTokenizer t = new StringTokenizer(result); int rc = Integer.parseInt(t.nextToken()); if (rc == 220) { // // Send the HELO command // String cmd = "HELO " + LOCALHOST_NAME + "\r\n"; socket.getOutputStream().write(cmd.getBytes()); // Response from HELO command may be a multi-line response // (but // most likely will be single-line).. // We are expecting to get a response with an integer return // code in the first token. We can't ge sure that the first // response will give us what we want. Consider the // following // reponse for example: // // 250-First line // 250-Second line // 250 Requested mail action okay, completed // // In this case the final line of the response contains the // return // code we are looking for. do { result = lineRdr.readLine(); } while (result != null && result.length() > 0 && MULTILINE_RESULT.match(result)); if (result == null || result.length() == 0) { log.info("Received truncated response from SMTP server " + InetAddressUtils.str(host)); continue; } t = new StringTokenizer(result); rc = Integer.parseInt(t.nextToken()); if (rc == 250) { // // Send the QUIT command // cmd = "QUIT\r\n"; socket.getOutputStream().write(cmd.getBytes()); // Response from QUIT command may be a multi-line // response. // We are expecting to get a response with an integer // return // code in the first token. We can't ge sure that the // first // response will give us what we want. Consider the // following // reponse for example: // // 221-First line // 221-Second line // 221 <domain> Service closing transmission channel. // // In this case the final line of the response contains // the return // code we are looking for. do { result = lineRdr.readLine(); } while (result != null && result.length() > 0 && MULTILINE_RESULT.match(result)); if (result == null || result.length() == 0) { log.info( "Received truncated response from SMTP server " + InetAddressUtils.str(host)); continue; } t = new StringTokenizer(result); rc = Integer.parseInt(t.nextToken()); if (rc == 221) isAServer = true; } } } catch (NumberFormatException e) { log.info( "SmtpPlugin: received invalid result code from server " + InetAddressUtils.str(host), e); isAServer = false; } catch (ConnectException cE) { // Connection refused!! Continue to retry. // log.debug("SmtpPlugin: connection refused to " + InetAddressUtils.str(host) + ":" + port); isAServer = false; } catch (NoRouteToHostException e) { // No route to host!! No need to perform retries. e.fillInStackTrace(); log.info( "SmtpPlugin: Unable to test host " + InetAddressUtils.str(host) + ", no route available", e); isAServer = false; throw new UndeclaredThrowableException(e); } catch (InterruptedIOException e) { log.debug( "SmtpPlugin: did not connect to host within timeout: " + timeout + " attempt: " + attempts); isAServer = false; } catch (IOException e) { log.info("SmtpPlugin: Error communicating with host " + InetAddressUtils.str(host), e); isAServer = false; } catch (Throwable t) { log.warn( "SmtpPlugin: Undeclared throwable exception caught contacting host " + InetAddressUtils.str(host), t); isAServer = false; } finally { try { if (socket != null) socket.close(); } catch (IOException e) { } } } // // return the success/failure of this // attempt to contact an SMTP server. // return isAServer; } /** * Returns the name of the protocol that this plugin checks on the target system for support. * * @return The protocol name for this plugin. */ @Override public String getProtocolName() { return PROTOCOL_NAME; } /** * {@inheritDoc} * * <p>Returns true if the protocol defined by this plugin is supported. If the protocol is not * supported then a false value is returned to the caller. */ @Override public boolean isProtocolSupported(InetAddress address) { return isServer(address, DEFAULT_PORT, DEFAULT_RETRY, DEFAULT_TIMEOUT); } /** * {@inheritDoc} * * <p>Returns true if the protocol defined by this plugin is supported. If the protocol is not * supported then a false value is returned to the caller. The qualifier map passed to the method * is used by the plugin to return additional information by key-name. These key-value pairs can * be added to service events if needed. */ @Override public boolean isProtocolSupported(InetAddress address, Map<String, Object> qualifiers) { int retries = DEFAULT_RETRY; int timeout = DEFAULT_TIMEOUT; int port = DEFAULT_PORT; if (qualifiers != null) { retries = ParameterMap.getKeyedInteger(qualifiers, "retry", DEFAULT_RETRY); timeout = ParameterMap.getKeyedInteger(qualifiers, "timeout", DEFAULT_TIMEOUT); port = ParameterMap.getKeyedInteger(qualifiers, "port", DEFAULT_PORT); } boolean result = isServer(address, port, retries, timeout); if (result && qualifiers != null && !qualifiers.containsKey("port")) qualifiers.put("port", port); return result; } }
