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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2008 Sun Microsystems, Inc.
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*/
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package org.opends.server.extensions;
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import org.opends.messages.Message;
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import java.util.ArrayList;
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import java.util.List;
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import org.opends.server.admin.server.ConfigurationChangeListener;
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import org.opends.server.admin.std.server.AlertHandlerCfg;
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import org.opends.server.admin.std.server.SMTPAlertHandlerCfg;
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import org.opends.server.api.AlertGenerator;
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import org.opends.server.api.AlertHandler;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.config.ConfigException;
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import org.opends.server.loggers.debug.DebugTracer;
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import org.opends.server.types.ConfigChangeResult;
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import org.opends.server.types.DebugLogLevel;
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import org.opends.server.types.InitializationException;
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import org.opends.server.types.ResultCode;
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import org.opends.server.util.EMailMessage;
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import static org.opends.server.loggers.debug.DebugLogger.*;
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import org.opends.server.loggers.ErrorLogger;
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import static org.opends.messages.ExtensionMessages.*;
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import org.opends.messages.MessageDescriptor;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* This class implements a Directory Server alert handler that may be used to
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* send administrative alerts via SMTP.
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*/
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public class SMTPAlertHandler
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implements AlertHandler<SMTPAlertHandlerCfg>,
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ConfigurationChangeListener<SMTPAlertHandlerCfg>
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{
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/**
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* The tracer object for the debug logger.
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*/
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private static final DebugTracer TRACER = getTracer();
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// The current configuration for this alert handler.
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private SMTPAlertHandlerCfg currentConfig;
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/**
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* Creates a new instance of this SMTP alert handler.
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*/
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public SMTPAlertHandler()
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{
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super();
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// All initialization should be done in the initializeAlertHandler method.
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}
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/**
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* {@inheritDoc}
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*/
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public void initializeAlertHandler(SMTPAlertHandlerCfg configuration)
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throws ConfigException, InitializationException
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{
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// Make sure that the Directory Server is configured with information about
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// at least one SMTP server.
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if ((DirectoryServer.getMailServerPropertySets() == null) ||
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DirectoryServer.getMailServerPropertySets().isEmpty())
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{
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Message message = ERR_SMTPALERTHANDLER_NO_SMTP_SERVERS.get();
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throw new ConfigException(message);
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}
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configuration.addSMTPChangeListener(this);
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currentConfig = configuration;
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}
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/**
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* {@inheritDoc}
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*/
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public AlertHandlerCfg getAlertHandlerConfiguration()
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{
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return currentConfig;
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}
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/**
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* {@inheritDoc}
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*/
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public boolean isConfigurationAcceptable(AlertHandlerCfg configuration,
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List<Message> unacceptableReasons)
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{
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return true;
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}
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/**
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* {@inheritDoc}
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*/
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public void finalizeAlertHandler()
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{
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// No action is required.
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}
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/**
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* {@inheritDoc}
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*/
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public void sendAlertNotification(AlertGenerator generator, String alertType,
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Message alertMessage)
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{
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SMTPAlertHandlerCfg cfg = currentConfig;
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ArrayList<String> recipients =
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new ArrayList<String>(cfg.getRecipientAddress());
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String alertIDStr;
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String alertMessageStr;
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if (alertMessage != null) {
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alertIDStr = String.valueOf(alertMessage.getDescriptor().getId());
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alertMessageStr = alertMessage.toString();
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} else {
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alertIDStr = String.valueOf(MessageDescriptor.NULL_ID);
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alertMessageStr = "none";
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}
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String subject = replaceTokens(cfg.getMessageSubject(), alertType,
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alertIDStr, alertMessageStr);
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String body = replaceTokens(cfg.getMessageBody(), alertType, alertIDStr,
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alertMessageStr);
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EMailMessage message = new EMailMessage(cfg.getSenderAddress(), recipients,
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subject);
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message.setBody(Message.raw(wrapText(body, 75)));
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try
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{
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message.send();
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}
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catch (Exception e)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, e);
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}
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Message msg = WARN_SMTPALERTHANDLER_ERROR_SENDING_MESSAGE.get(
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alertType, alertMessage, stackTraceToSingleLineString(e));
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ErrorLogger.logError(msg);
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}
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}
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/**
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* Replaces any occurrences of special tokens in the given string with the
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* appropriate value. Tokens supported include:
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* <UL>
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* <LI>%%alert-type%% -- Will be replaced with the alert type string</LI>
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* <LI>%%alert-id%% -- Will be replaced with the alert ID value</LI>
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* <LI>%%alert-message%% -- Will be replaced with the alert message</LI>
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* <LI>\n -- Will be replaced with an end-of-line character.
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* </UL>
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*
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* @param s The string to be processed.
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* @param alertType The string to use to replace the "%%alert-type%%"
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* token.
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* @param alertID The string to use to replace the "%%alert-id%%"
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* token.
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* @param alertMessage The string to use to replace the "%%alert-message%%"
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* token.
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*
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* @return A processed version of the provided string.
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*/
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private String replaceTokens(String s, String alertType, String alertID,
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String alertMessage)
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{
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return s.replace("%%alert-type%%", alertType).
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replace("%%alert-id%%", alertID).
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replace("%%alert-message%%", alertMessage).
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replace("\\n", "\r\n");
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}
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/**
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* {@inheritDoc}
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*/
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public boolean isConfigurationChangeAcceptable(
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SMTPAlertHandlerCfg configuration,
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List<Message> unacceptableReasons)
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{
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return true;
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}
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/**
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* {@inheritDoc}
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*/
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public ConfigChangeResult applyConfigurationChange(
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SMTPAlertHandlerCfg configuration)
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{
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currentConfig = configuration;
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return new ConfigChangeResult(ResultCode.SUCCESS, false);
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}
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}
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