/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
* or http://forgerock.org/license/CDDLv1.0.html.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at legal-notices/CDDLv1_0.txt.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information:
* Portions Copyright [yyyy] [name of copyright owner]
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*
* Copyright 2006-2009 Sun Microsystems, Inc.
* Portions Copyright 2014-2015 ForgeRock AS
*/
package org.opends.server.extensions;
import static org.opends.messages.ExtensionMessages.ERR_SMTPALERTHANDLER_NO_SMTP_SERVERS;
import static org.opends.messages.ExtensionMessages.WARN_SMTPALERTHANDLER_ERROR_SENDING_MESSAGE;
import static com.forgerock.opendj.cli.Utils.wrapText;
import java.util.ArrayList;
import java.util.List;
import org.forgerock.i18n.LocalizableMessage;
import org.forgerock.i18n.slf4j.LocalizedLogger;
import org.forgerock.opendj.config.server.ConfigException;
import org.opends.server.admin.server.ConfigurationChangeListener;
import org.opends.server.admin.std.server.AlertHandlerCfg;
import org.opends.server.admin.std.server.SMTPAlertHandlerCfg;
import org.opends.server.api.AlertGenerator;
import org.opends.server.api.AlertHandler;
import org.opends.server.core.DirectoryServer;
import org.forgerock.opendj.config.server.ConfigChangeResult;
import org.opends.server.types.InitializationException;
import org.opends.server.util.EMailMessage;
/**
* This class implements a Directory Server alert handler that may be used to
* send administrative alerts via SMTP.
*/
public class SMTPAlertHandler
implements AlertHandler<SMTPAlertHandlerCfg>,
ConfigurationChangeListener<SMTPAlertHandlerCfg>
{
private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
/** The current configuration for this alert handler. */
private SMTPAlertHandlerCfg currentConfig;
/**
* Creates a new instance of this SMTP alert handler.
*/
public SMTPAlertHandler()
{
super();
// All initialization should be done in the initializeAlertHandler method.
}
/** {@inheritDoc} */
public void initializeAlertHandler(SMTPAlertHandlerCfg configuration)
throws ConfigException, InitializationException
{
// Make sure that the Directory Server is configured with information about
// at least one SMTP server.
if (DirectoryServer.getMailServerPropertySets() == null ||
DirectoryServer.getMailServerPropertySets().isEmpty())
{
throw new ConfigException(ERR_SMTPALERTHANDLER_NO_SMTP_SERVERS.get());
}
configuration.addSMTPChangeListener(this);
currentConfig = configuration;
}
/** {@inheritDoc} */
public AlertHandlerCfg getAlertHandlerConfiguration()
{
return currentConfig;
}
/** {@inheritDoc} */
public boolean isConfigurationAcceptable(AlertHandlerCfg configuration,
List<LocalizableMessage> unacceptableReasons)
{
return true;
}
/** {@inheritDoc} */
public void finalizeAlertHandler()
{
// No action is required.
}
/** {@inheritDoc} */
public void sendAlertNotification(AlertGenerator generator, String alertType,
LocalizableMessage alertMessage)
{
SMTPAlertHandlerCfg cfg = currentConfig;
ArrayList<String> recipients = new ArrayList<>(cfg.getRecipientAddress());
String alertIDStr;
String alertMessageStr;
if (alertMessage != null) {
alertIDStr = alertMessage.resourceName() + "-" + alertMessage.ordinal();
alertMessageStr = alertMessage.toString();
} else {
alertIDStr = "-1";
alertMessageStr = "none";
}
String subject = replaceTokens(cfg.getMessageSubject(), alertType,
alertIDStr, alertMessageStr);
String body = replaceTokens(cfg.getMessageBody(), alertType, alertIDStr,
alertMessageStr);
EMailMessage message = new EMailMessage(cfg.getSenderAddress(), recipients,
subject);
message.setBody(LocalizableMessage.raw(wrapText(body, 75)));
try
{
message.send();
}
catch (Exception e)
{
logger.traceException(e);
logger.error(WARN_SMTPALERTHANDLER_ERROR_SENDING_MESSAGE,
alertType, alertMessage, e.getLocalizedMessage());
}
}
/**
* Replaces any occurrences of special tokens in the given string with the
* appropriate value. Tokens supported include:
* <UL>
* <LI>%%alert-type%% -- Will be replaced with the alert type string</LI>
* <LI>%%alert-id%% -- Will be replaced with the alert ID value</LI>
* <LI>%%alert-message%% -- Will be replaced with the alert message</LI>
* <LI>\n -- Will be replaced with an end-of-line character.
* </UL>
*
* @param s The string to be processed.
* @param alertType The string to use to replace the "%%alert-type%%"
* token.
* @param alertID The string to use to replace the "%%alert-id%%"
* token.
* @param alertMessage The string to use to replace the "%%alert-message%%"
* token.
*
* @return A processed version of the provided string.
*/
private String replaceTokens(String s, String alertType, String alertID,
String alertMessage)
{
return s.replace("%%alert-type%%", alertType).
replace("%%alert-id%%", alertID).
replace("%%alert-message%%", alertMessage).
replace("\\n", "\r\n");
}
/** {@inheritDoc} */
public boolean isConfigurationChangeAcceptable(
SMTPAlertHandlerCfg configuration,
List<LocalizableMessage> unacceptableReasons)
{
return true;
}
/** {@inheritDoc} */
public ConfigChangeResult applyConfigurationChange(
SMTPAlertHandlerCfg configuration)
{
currentConfig = configuration;
return new ConfigChangeResult();
}
}