org.graylog2.alerts.FormattedEmailAlertSender Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.alerts;
import com.floreysoft.jmte.Engine;
import org.graylog2.configuration.EmailConfiguration;
import org.graylog2.plugin.Message;
import org.graylog2.plugin.alarms.AlertCondition;
import org.graylog2.plugin.configuration.Configuration;
import org.graylog2.plugin.streams.Stream;
import org.graylog2.streams.StreamRuleService;
import org.graylog2.shared.users.UserService;
import javax.inject.Inject;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class FormattedEmailAlertSender extends StaticEmailAlertSender implements AlertSender {
public static final String bodyTemplate = "##########\n" +
"Date: ${check_result.triggeredAt}\n" +
"Stream ID: ${stream.id}\n" +
"Stream title: ${stream.title}\n" +
"${if stream_url}Stream URL: ${stream_url}${end}\n" +
"\n" +
"Triggered condition: ${check_result.triggeredCondition}\n" +
"##########\n\n" +
"Last messages accounting for this alert:\n" +
"${if backlog_size > 0}" +
"${foreach backlog message}\n" +
"${message}\n" +
"${end}\n" +
"${else}${end}\n" +
"\n";
private Configuration pluginConfig;
@Inject
public FormattedEmailAlertSender(EmailConfiguration configuration, StreamRuleService streamRuleService, UserService userService) {
super(configuration, streamRuleService, userService);
}
@Override
public void initialize(Configuration configuration) {
this.pluginConfig = configuration;
}
@Override
protected String buildSubject(Stream stream, AlertCondition.CheckResult checkResult, EmailConfiguration config, List backlog) {
final String template;
if (pluginConfig == null || pluginConfig.getString("subject") == null) {
template = "Graylog alert for stream: ${stream.title}";
} else {
template = pluginConfig.getString("subject");
}
Map model = getModel(stream, checkResult, backlog);
Engine engine = new Engine();
return engine.transform(template, model);
}
@Override
protected String buildBody(Stream stream, AlertCondition.CheckResult checkResult, List backlog) {
final String template;
if (pluginConfig == null || pluginConfig.getString("body") == null) {
template = bodyTemplate;
} else {
template = pluginConfig.getString("body");
}
Map model = getModel(stream, checkResult, backlog);
Engine engine = new Engine();
return engine.transform(template, model);
}
private Map getModel(Stream stream, AlertCondition.CheckResult checkResult, List backlog) {
Map model = new HashMap<>();
model.put("stream", stream);
model.put("check_result", checkResult);
model.put("stream_url", buildStreamDetailsURL(configuration.getWebInterfaceUri(), checkResult, stream));
if (backlog != null) {
model.put("backlog", backlog);
model.put("backlog_size", backlog.size());
} else {
model.put("backlog", Collections.emptyList());
model.put("backlog_size", 0);
}
return model;
}
}