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//---PACKAGE DECLARATION--- |
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package uk.org.iscream.cms.server.client.alerters; |
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|
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//---IMPORTS--- |
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import uk.org.iscream.cms.server.client.*; |
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import uk.org.iscream.cms.server.core.*; |
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import uk.org.iscream.cms.server.util.*; |
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import uk.org.iscream.cms.server.componentmanager.*; |
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import java.io.*; |
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import java.net.*; |
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import java.util.*; |
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import java.text.DateFormat; |
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import org.jibble.pircbot.*; |
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|
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/** |
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* This Alert sends an IRC message. |
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* |
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* Clean shutdown could be achieved by stopping the run() method in the |
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* IRCBot inner class. |
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* |
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* @author $Author: tdb $ |
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* @version $Id: IRC__Alerter.java,v 1.30.2.2 2002/02/04 23:14:38 tdb Exp $ |
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*/ |
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public class IRC__Alerter extends AlerterSkeleton { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.30.2.2 $"; |
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|
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/** |
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* A description of this alerter |
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*/ |
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public final String DESC = "Sends alerts on an IRC channel"; |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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public IRC__Alerter() { |
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super(); |
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// construct and initialise the bot |
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_ircbot = new IRCBot(); |
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_ircbot.setVerbose(false); |
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Thread ircThread = new Thread(_ircbot); |
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// set it's name and start it |
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ircThread.setName("client.IRC__Alerter$IRCBot"); |
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ircThread.start(); |
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// log our start time |
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_startTime = System.currentTimeMillis(); |
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_logger.write(toString(), Logger.SYSINIT, "IRC Alerter started"); |
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} |
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|
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//---PUBLIC METHODS--- |
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|
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/** |
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* Implements the abstract method from the skeleton class. |
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* This method will attempt to send an alert |
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* message over the IRC channel. |
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* |
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* @param alert the alert to send |
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*/ |
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public void sendAlert(Alert alert) { |
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// sort out the message |
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String alertType = Alert.alertLevels[alert.getLevel()]; |
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String message; |
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try { |
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message = _cp.getProperty(_name, "Alerter.IRC.message"); |
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} catch (PropertyNotFoundException e) { |
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message = NOT_CONFIGURED; |
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_logger.write(toString(), Logger.WARNING, "Alerter.IRC.message value unavailable using default of " + message); |
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} |
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message = processAlertMessage(message, alert); |
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// only send alerts if we're active |
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if(_active) { |
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// send the message |
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_logger.write(toString(), Logger.DEBUG, "Sending " + _name + " at "+ alertType + " level"); |
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_ircbot.sendMessage(message); |
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// count sent alerts |
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_alertCount++; |
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} else { |
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// don't send, but keep a count that we ignored it |
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_ignoredCount++; |
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} |
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// we'll always store the "last alert", regardless |
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// of whether we actually display it or not |
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_lastAlert = message; |
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_lastAlertTime = System.currentTimeMillis(); |
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} |
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|
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/** |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* This uses the uk.org.iscream.cms.server.util.NameFormat class |
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* to format the toString() |
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* |
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* @return the name of this class and its CVS revision |
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*/ |
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public String toString() { |
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return FormatName.getName( |
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_name, |
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getClass().getName(), |
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REVISION); |
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} |
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|
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/** |
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* Return the String representation of what the alerter does |
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* |
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* @return the description |
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*/ |
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public String getDescription(){ |
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return DESC; |
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} |
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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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/** |
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* Returns the "friendly" name of this class. This |
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* is simply an accessor for _name, required due to |
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* inheritance issues with extending AlerterSkeleton. |
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* |
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* @return the friendly name |
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*/ |
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protected String getFName() { |
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return _name; |
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} |
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|
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//---ATTRIBUTES--- |
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|
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/** |
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* A reference to the IRCBot |
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*/ |
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private IRCBot _ircbot; |
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|
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/** |
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* Are we "active" |
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*/ |
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private boolean _active = false; |
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|
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/** |
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* The last alert that was sent |
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*/ |
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private String _lastAlert = "no alerts have been sent"; |
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|
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/** |
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* The time of the last alert |
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*/ |
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private long _lastAlertTime = -1; |
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|
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/** |
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* Number of alerts sent |
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*/ |
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private int _alertCount = 0; |
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|
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/** |
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* Number of alerts ignored when in "stopped" mode |
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*/ |
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private int _ignoredCount = 0; |
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|
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/** |
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* Time of IRCBot startup |
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*/ |
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private long _startTime; |
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|
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/** |
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* This holds a reference to the |
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* system logger that is being used. |
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*/ |
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protected Logger _logger = ReferenceManager.getInstance().getLogger(); |
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|
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/** |
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* This is the friendly identifier of the |
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* component this class is running in. |
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* eg, a Filter may be called "filter1", |
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* If this class does not have an owning |
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* component, a name from the configuration |
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* can be placed here. This name could also |
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* be changed to null for utility classes. |
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*/ |
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private String _name = "IRC"; |
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|
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//---STATIC ATTRIBUTES--- |
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|
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//---INNER CLASSES--- |
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|
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class IRCBot extends PircBot implements Runnable { |
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|
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/** |
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* The default reconnect delay in seconds |
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*/ |
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public final int DEFAULT_RECONNECT_DELAY = 30; |
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|
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/** |
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* Attempt to kick-start the IRCBot into action. Will |
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* keep calling init() until it doesn't throw an |
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* an IOException (which will only be thrown if there |
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* is an error initialising). After a successful call |
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* to init() the method finishes. |
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*/ |
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public void run() { |
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while(true) { |
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try { |
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init(); |
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break; |
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} |
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catch (IOException e) { |
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_logger.write(this.toString(), Logger.ERROR, "Error initialising IRCBot: "+e); |
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// wait for a while, defined in the config |
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reconnectSleep(); |
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} |
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} |
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} |
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|
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/** |
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* Connects the bot to an irc server and joins a channel, |
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* using details supplied from the i-scream configuration |
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* system. If this method completes without an exception |
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* one can presume the bot is ready for use. |
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* |
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* @throws IOException if there is any problem initialising |
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*/ |
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public void init() throws IOException { |
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_logger.write(this.toString(), Logger.DEBUG, "Initialising IRCBot..."); |
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|
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// get a hook on the configuration system |
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ConfigurationProxy cp = ConfigurationProxy.getInstance(); |
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|
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// get hold of the server details |
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String server; |
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int port; |
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try { |
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server = cp.getProperty(_name, "Alerter.IRC.IRCServer"); |
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port = Integer.parseInt(cp.getProperty(_name, "Alerter.IRC.IRCPort")); |
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} catch (PropertyNotFoundException e) { |
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_logger.write(this.toString(), Logger.ERROR, "Configuration error: "+e); |
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throw new IOException("Can't get irc server details due to configuration error"); |
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} catch (NumberFormatException e) { |
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_logger.write(this.toString(), Logger.ERROR, "Configuration error: "+e); |
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throw new IOException("Can't get irc server details due to malformed configuration"); |
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} |
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|
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// get hold of the user details and nickname list |
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String user, comment, finger, nickList; |
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try { |
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user = cp.getProperty(_name, "Alerter.IRC.user"); |
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comment = cp.getProperty(_name, "Alerter.IRC.comment"); |
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finger = cp.getProperty(_name, "Alerter.IRC.finger"); |
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nickList = cp.getProperty(_name, "Alerter.IRC.nickList"); |
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} catch (PropertyNotFoundException e) { |
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_logger.write(this.toString(), Logger.ERROR, "Configuration error: "+e); |
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throw new IOException("Can't get user/nickname details due to configuration error"); |
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} |
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|
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// put these details into the bot |
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this.setLogin(user); |
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this.setVersion(comment); |
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this.setFinger(finger); |
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|
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// attempt to connect, trying each nickname |
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// in turn until sucessfully connected |
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StringTokenizer st = new StringTokenizer(nickList, ";"); |
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boolean ok = false; |
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while(!ok && st.hasMoreTokens()) { |
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String nick = st.nextToken(); |
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try { |
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// try to connect with a nickname |
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_logger.write(this.toString(), Logger.DEBUG, "Trying nick: "+nick); |
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this.setName(nick); |
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this.connect(server, port); |
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// at this point we know the nickname was accepted |
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_nickname = nick; |
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ok = true; |
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} |
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catch(IOException e) { |
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_logger.write(this.toString(), Logger.ERROR, "IO error when connecting to server: "+e); |
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throw new IOException("IO error when connecting to server"); |
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} |
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catch(IrcException e) { |
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_logger.write(this.toString(), Logger.ERROR, "IRC error when connecting to server: "+e); |
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throw new IOException("IRC error when connecting to server"); |
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} |
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catch(NickAlreadyInUseException e) { |
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_logger.write(this.toString(), Logger.ERROR, "Nickname "+nick+" is already in use: "+e); |
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// don't do anything, instead just loop round |
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// and try the next nickname in the list |
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} |
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} |
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if(!ok) { |
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// must have tried all the nicknames, best bail out |
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_logger.write(this.toString(), Logger.ERROR, "All nicknames already in use"); |
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throw new IOException("All nicknames already in use"); |
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} |
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|
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// get hold of the channel details, and attempt |
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// to join the specified channel |
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try { |
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_channel = cp.getProperty(_name, "Alerter.IRC.channel"); |
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this.joinChannel(_channel); |
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} catch (PropertyNotFoundException e) { |
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_logger.write(this.toString(), Logger.ERROR, "Configuration error: "+e); |
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throw new IOException("Can't get channel name due to configuration error"); |
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} |
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|
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// get hold of the startup notice, and send |
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// it if it's defined |
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String startupNotice; |
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try { |
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startupNotice = ConfigurationProxy.getInstance().getProperty(_name, "Alerter.IRC.startupNotice"); |
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sendNotice(_channel, startupNotice); |
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} catch (PropertyNotFoundException e) { |
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_logger.write(this.toString(), Logger.DEBUG, "Startup notice not defined, so not sending: "+e); |
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} |
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|
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// at this point initialisation is complete, so |
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// we can return and set this flag to allow alerts |
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_active = true; |
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} |
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|
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/** |
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* Send a message to the current channel. |
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* |
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* @param message The message to send |
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*/ |
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public void sendMessage(String message) { |
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sendMessage(_channel, message); |
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} |
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|
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/** |
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* If we get disconnected this method will be |
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* called, so we must take action. We'll simply |
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* keep trying to reinitialise, and thus |
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* reconnect to the server. |
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*/ |
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public void onDisconnect() { |
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// stop alerts being sent for now |
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_active = false; |
342 |
while(true) { |
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// wait for a while, defined in the config |
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reconnectSleep(); |
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try { |
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init(); |
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break; |
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} |
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catch (IOException e) { |
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_logger.write(this.toString(), Logger.ERROR, "Error initialising IRCBot: "+e); |
351 |
} |
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} |
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} |
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|
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/** |
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* If we receive a message this method will |
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* be called. We'll check if the message is |
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* for us, and call handleInput if it is. |
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* |
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* @param channel The channel the message came from |
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* @param sender The sender of the message |
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* @param login The login of the sender |
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* @param hostname The hostname of the sender |
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* @param message The message sent |
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*/ |
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public void onMessage(String channel, String sender, String login, String hostname, String message) { |
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if(isForMe(message)) { |
368 |
handleInput(message, channel); |
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} |
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} |
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|
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/** |
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* If we receive a private message this method |
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* will be called. No need to check if it's for |
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* us -- it has to be if it's a private message. |
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* |
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* @param sender The sender of the message |
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* @param login The login of the sender |
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* @param hostname The hostname of the sender |
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* @param message The message sent |
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*/ |
382 |
public void onPrivateMessage(String sender, String login, String hostname, String message) { |
383 |
handleInput(message, sender); |
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} |
385 |
|
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/** |
387 |
* If we receive a nick change message, this |
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* method gets called. We don't care about |
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* other users changing their nick, so we only |
390 |
* take notice if our nick changes. If it does |
391 |
* we need to change our internal nickname |
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* state. |
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* |
394 |
* @param oldNick the old nickname |
395 |
* @param login the login of the nick changer |
396 |
* @param hostname the hostname of the nick changer |
397 |
* @param newNick the new nickname |
398 |
*/ |
399 |
public void onNickChange(String oldNick, String login, String hostname, String newNick) { |
400 |
if(oldNick.equals(_nickname)) { |
401 |
_nickname = newNick; |
402 |
} |
403 |
} |
404 |
|
405 |
/** |
406 |
* If we receive a kick message this method |
407 |
* gets called. We only take notice if it's |
408 |
* us getting kicked, and then we'll rejoin |
409 |
* the channel after a short wait. |
410 |
* |
411 |
* @param channel the channel the kick happened on |
412 |
* @param kickerNick the person who performed the kick |
413 |
* @param kickerLogin the login of the person who performed the kick |
414 |
* @param kickerHostname the hostname of the person who performed the kick |
415 |
* @param recipientNick the nickname of the person being kicked |
416 |
* @param reason the reason for the kick |
417 |
*/ |
418 |
public void onKick(String channel, String kickerNick, String kickerLogin, String kickerHostname, String recipientNick, String reason) { |
419 |
if(recipientNick.equals(_nickname) && channel.equals(_channel)) { |
420 |
// remind the person it's not very nice :) |
421 |
sendMessage(kickerNick, "That wasn't a nice thing to do..."); |
422 |
// get hold of the channel details, in case they've changed |
423 |
try { |
424 |
_channel = ConfigurationProxy.getInstance().getProperty(_name, "Alerter.IRC.channel"); |
425 |
} catch(PropertyNotFoundException e) { |
426 |
_logger.write(this.toString(), Logger.ERROR, "Can't get channel name due to configuration error: "+e); |
427 |
} |
428 |
// wait for a while, defined in the config |
429 |
reconnectSleep(); |
430 |
// we'll try and rejoin the channel regardless |
431 |
// otherwise we might end up doing nothing! |
432 |
joinChannel(_channel); |
433 |
} |
434 |
} |
435 |
|
436 |
/** |
437 |
* This method handles input directed to us, and |
438 |
* responds accordingly if required. |
439 |
* |
440 |
* nb. matching user input is quite bad right now, |
441 |
* and should be improved one day. |
442 |
* |
443 |
* @param message the message from someone |
444 |
* @param source where the message came from, so we know where to send the response |
445 |
*/ |
446 |
private void handleInput(String message, String source) { |
447 |
// get hold of the configuration system |
448 |
ConfigurationProxy cp = ConfigurationProxy.getInstance(); |
449 |
// setup some String's |
450 |
String stopCommand, startCommand, timeSinceLastAlertCommand, lastAlertCommand, joinCommand; |
451 |
String nickChangeCommand, versionCommand, helpCommand, statCommand, uptimeCommand; |
452 |
// get the command set from the configuration |
453 |
try { |
454 |
stopCommand = cp.getProperty(_name, "Alerter.IRC.stopCommand"); |
455 |
startCommand = cp.getProperty(_name, "Alerter.IRC.startCommand"); |
456 |
timeSinceLastAlertCommand = cp.getProperty(_name, "Alerter.IRC.timeSinceLastAlertCommand"); |
457 |
lastAlertCommand = cp.getProperty(_name, "Alerter.IRC.lastAlertCommand"); |
458 |
joinCommand = cp.getProperty(_name, "Alerter.IRC.joinCommand"); |
459 |
nickChangeCommand = cp.getProperty(_name, "Alerter.IRC.nickChangeCommand"); |
460 |
versionCommand = cp.getProperty(_name, "Alerter.IRC.versionCommand"); |
461 |
helpCommand = cp.getProperty(_name, "Alerter.IRC.helpCommand"); |
462 |
statCommand = cp.getProperty(_name, "Alerter.IRC.statCommand"); |
463 |
uptimeCommand = cp.getProperty(_name, "Alerter.IRC.uptimeCommand"); |
464 |
} catch (PropertyNotFoundException e) { |
465 |
_logger.write(this.toString(), Logger.ERROR, "Configuration error: "+e); |
466 |
// lets bail from handling this line... |
467 |
// ...it's gonna be hard without a command set! |
468 |
return; |
469 |
} |
470 |
|
471 |
// see if the message matches (loosely!) any |
472 |
// of our known commands |
473 |
if(message.indexOf(stopCommand) != -1) { |
474 |
_active = false; |
475 |
sendMessage(source, "alerts have been stopped"); |
476 |
} |
477 |
else if(message.indexOf(startCommand) != -1) { |
478 |
_active = true; |
479 |
sendMessage(source, "alerts have been activated"); |
480 |
} |
481 |
// this needs to go before lastAlertCommand if it contains |
482 |
// the same words as the lastAlertCommand. |
483 |
else if(message.indexOf(timeSinceLastAlertCommand) != -1) { |
484 |
if(_lastAlertTime != -1) { |
485 |
long uptime = (System.currentTimeMillis() - _lastAlertTime) / 1000; |
486 |
String uptimeText = DateUtils.formatTime(uptime, "%DAYS% days, %HOURS% hours, %MINS% mins, and %SECS% secs"); |
487 |
sendMessage(source, "I last sent an alert "+uptimeText+ " ago"); |
488 |
} |
489 |
else { |
490 |
sendMessage(source, "I've never sent an alert!"); |
491 |
} |
492 |
} |
493 |
else if(message.indexOf(lastAlertCommand) != -1) { |
494 |
if(_lastAlertTime != -1) { |
495 |
String date = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, Locale.UK).format(new Date(_lastAlertTime)); |
496 |
sendMessage(source, "last alert was at "+date+"; "+_lastAlert); |
497 |
} |
498 |
else { |
499 |
sendMessage(source, "I've never sent an alert!"); |
500 |
} |
501 |
|
502 |
} |
503 |
else if(message.indexOf(joinCommand) != -1) { |
504 |
String joinCmd = joinCommand; |
505 |
String newChan = message.substring(message.indexOf(joinCmd) + joinCmd.length() + 1); |
506 |
int endOfChan = newChan.indexOf(" "); |
507 |
if(endOfChan == -1) { |
508 |
endOfChan = newChan.length(); |
509 |
} |
510 |
newChan = newChan.substring(0, endOfChan); |
511 |
if(newChan.equals(_channel)) { |
512 |
sendMessage(source, "I'm already on "+newChan+"!"); |
513 |
} else { |
514 |
partChannel(_channel); |
515 |
joinChannel(newChan); |
516 |
_channel = newChan; |
517 |
} |
518 |
} |
519 |
else if(message.indexOf(nickChangeCommand) != -1) { |
520 |
String nickChangeCmd = nickChangeCommand; |
521 |
String newNick = message.substring(message.indexOf(nickChangeCmd) + nickChangeCmd.length() + 1); |
522 |
int endOfNick = newNick.indexOf(" "); |
523 |
if(endOfNick == -1) { |
524 |
endOfNick = newNick.length(); |
525 |
} |
526 |
newNick = newNick.substring(0, endOfNick); |
527 |
changeNick(newNick); |
528 |
} |
529 |
else if(message.indexOf(versionCommand) != -1) { |
530 |
sendMessage(source, "I am version "+REVISION.substring(11, REVISION.length() -2)+" of the i-scream alerting bot"); |
531 |
} |
532 |
else if(message.indexOf(helpCommand) != -1) { |
533 |
sendMessage(source, "Hello, I am the i-scream alerting bot version "+REVISION.substring(11, REVISION.length() -2)); |
534 |
sendMessage(source, "I understand the following commands;"); |
535 |
sendMessage(source, stopCommand); |
536 |
sendMessage(source, startCommand); |
537 |
sendMessage(source, lastAlertCommand); |
538 |
sendMessage(source, joinCommand); |
539 |
sendMessage(source, nickChangeCommand); |
540 |
sendMessage(source, statCommand); |
541 |
sendMessage(source, uptimeCommand); |
542 |
sendMessage(source, timeSinceLastAlertCommand); |
543 |
sendMessage(source, helpCommand); |
544 |
} |
545 |
else if(message.indexOf(statCommand) != -1) { |
546 |
sendMessage(source, "I have sent a total of "+_alertCount+" alerts, and ignored a total of "+_ignoredCount+"!"); |
547 |
} |
548 |
else if(message.indexOf(uptimeCommand) != -1) { |
549 |
long uptime = (System.currentTimeMillis() - _startTime) / 1000; |
550 |
String uptimeText = DateUtils.formatTime(uptime, "%DAYS% days, %HOURS% hours, %MINS% mins, and %SECS% secs"); |
551 |
sendMessage(source, "I have been running for "+uptimeText); |
552 |
} |
553 |
else if(message.indexOf("ping") != -1) { |
554 |
sendMessage(source, "pong"); |
555 |
} |
556 |
else if(message.indexOf("do a jibble dance") != -1) { |
557 |
// little joke :) |
558 |
sendAction(source, "jives to the funky beat shouting \"ii--screeeaaammm\""); |
559 |
} |
560 |
else { |
561 |
String rejectMessage = NOT_CONFIGURED; |
562 |
try { |
563 |
rejectMessage = cp.getProperty(_name, "Alerter.IRC.rejectMessage"); |
564 |
} catch(PropertyNotFoundException e) { |
565 |
_logger.write(this.toString(), Logger.ERROR, "Configuration error: "+e); |
566 |
} |
567 |
sendMessage(source, rejectMessage); |
568 |
} |
569 |
} |
570 |
|
571 |
/** |
572 |
* Quick method to check if the message appears |
573 |
* to be directed at us. We simply check to see |
574 |
* if it starts with our nick in some fashion. |
575 |
* |
576 |
* @param message the message to check |
577 |
* @return if the message is for us |
578 |
*/ |
579 |
private boolean isForMe(String message) { |
580 |
String nick = _nickname.toLowerCase(); |
581 |
String msg = message.toLowerCase(); |
582 |
if(msg.startsWith(nick + ", ") || |
583 |
msg.startsWith(nick + ": ") || |
584 |
msg.startsWith(nick + " ")) { |
585 |
return true; |
586 |
} |
587 |
else { |
588 |
return false; |
589 |
} |
590 |
} |
591 |
|
592 |
/** |
593 |
* Sleep for a configurable amount of time and |
594 |
* then return. This is used when reconnecting |
595 |
* to the server or a channel. |
596 |
*/ |
597 |
private void reconnectSleep() { |
598 |
int delayTime = 0; |
599 |
try { |
600 |
delayTime = Integer.parseInt(ConfigurationProxy.getInstance().getProperty(_name, "Alerter.IRC.reconnectDelay")); |
601 |
} catch (NumberFormatException e) { |
602 |
delayTime = DEFAULT_RECONNECT_DELAY; |
603 |
_logger.write(this.toString(), Logger.WARNING, "Erronous Alerter.IRC.reconnectDelay value in configuration using default of " + delayTime + " seconds"); |
604 |
} catch (PropertyNotFoundException e) { |
605 |
delayTime = DEFAULT_RECONNECT_DELAY; |
606 |
_logger.write(this.toString(), Logger.WARNING, "Alerter.IRC.reconnectDelay value unavailable using default of " + delayTime + " seconds"); |
607 |
} |
608 |
_logger.write(this.toString(), Logger.ERROR, "Waiting "+delayTime+" seconds for reconnect..."); |
609 |
try { |
610 |
Thread.sleep(delayTime * 1000); |
611 |
} catch (InterruptedException e) {} |
612 |
} |
613 |
|
614 |
/** |
615 |
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
616 |
* method to provide clean logging (every class should have this). |
617 |
* |
618 |
* This uses the uk.org.iscream.cms.server.util.NameFormat class |
619 |
* to format the toString() |
620 |
* |
621 |
* @return the name of this class and its CVS revision |
622 |
*/ |
623 |
public String toString() { |
624 |
return FormatName.getName( |
625 |
_name, |
626 |
getClass().getName(), |
627 |
REVISION); |
628 |
} |
629 |
|
630 |
/** |
631 |
* Just a reminder to what channel we're on... |
632 |
* this can't be dynamic :) |
633 |
*/ |
634 |
private String _channel; |
635 |
|
636 |
/** |
637 |
* A reminder of our current nickname... |
638 |
*/ |
639 |
private String _nickname; |
640 |
|
641 |
} |
642 |
|
643 |
} |