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/**
* 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.rest.resources.streams.alerts;
import com.codahale.metrics.annotation.Timed;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;
import org.apache.commons.mail.EmailException;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
import org.elasticsearch.common.Strings;
import org.graylog2.alarmcallbacks.AlarmCallbackConfiguration;
import org.graylog2.alarmcallbacks.AlarmCallbackConfigurationService;
import org.graylog2.alarmcallbacks.AlarmCallbackFactory;
import org.graylog2.alarmcallbacks.EmailAlarmCallback;
import org.graylog2.alerts.AbstractAlertCondition;
import org.graylog2.alerts.types.DummyAlertCondition;
import org.graylog2.database.NotFoundException;
import org.graylog2.plugin.Tools;
import org.graylog2.plugin.alarms.callbacks.AlarmCallback;
import org.graylog2.plugin.alarms.callbacks.AlarmCallbackConfigurationException;
import org.graylog2.plugin.alarms.callbacks.AlarmCallbackException;
import org.graylog2.plugin.alarms.transports.TransportConfigurationException;
import org.graylog2.plugin.streams.Stream;
import org.graylog2.shared.rest.resources.RestResource;
import org.graylog2.shared.security.RestPermissions;
import org.graylog2.streams.StreamService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import static com.google.common.base.Preconditions.checkArgument;
@RequiresAuthentication
@Api(value = "AlertReceivers", description = "Manage stream alert receivers")
@Path("/streams/{streamId}/alerts")
public class StreamAlertReceiverResource extends RestResource {
private static final Logger LOG = LoggerFactory.getLogger(StreamAlertReceiverResource.class);
private final StreamService streamService;
private final AlarmCallbackConfigurationService alarmCallbackConfigurationService;
private final EmailAlarmCallback emailAlarmCallback;
private final AlarmCallbackFactory alarmCallbackFactory;
@Inject
public StreamAlertReceiverResource(StreamService streamService,
AlarmCallbackConfigurationService alarmCallbackConfigurationService,
EmailAlarmCallback emailAlarmCallback,
AlarmCallbackFactory alarmCallbackFactory) {
this.streamService = streamService;
this.alarmCallbackConfigurationService = alarmCallbackConfigurationService;
this.emailAlarmCallback = emailAlarmCallback;
this.alarmCallbackFactory = alarmCallbackFactory;
}
@POST
@Timed
@Path("receivers")
@ApiOperation(value = "Add an alert receiver")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
public Response addReceiver(
@ApiParam(name = "streamId", value = "The stream id this new alert condition belongs to.", required = true)
@PathParam("streamId") String streamid,
@ApiParam(name = "entity", value = "Name/ID of user or email address to add as alert receiver.", required = true)
@QueryParam("entity") String entity,
@ApiParam(name = "type", value = "Type: users or emails", required = true)
@QueryParam("type") String type
) throws org.graylog2.database.NotFoundException {
checkPermission(RestPermissions.STREAMS_EDIT, streamid);
checkArgument(!Strings.isNullOrEmpty(entity));
if (type == null || (!type.equals("users") && !type.equals("emails"))) {
LOG.warn("No such type: [{}]", type);
throw new BadRequestException();
}
final Stream stream = streamService.load(streamid);
// TODO What's the actual URI of the created resource?
final URI streamAlertUri = getUriBuilderToSelf().path(StreamAlertResource.class).build(streamid);
// Maybe the list already contains this receiver?
if (stream.getAlertReceivers().containsKey(type) || stream.getAlertReceivers().get(type) != null) {
if (stream.getAlertReceivers().get(type).contains(entity)) {
return Response.created(streamAlertUri).build();
}
}
streamService.addAlertReceiver(stream, type, entity);
return Response.created(streamAlertUri).build();
}
@DELETE
@Timed
@Path("receivers")
@ApiOperation(value = "Remove an alert receiver")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
public void removeReceiver(
@ApiParam(name = "streamId", value = "The stream id this new alert condition belongs to.", required = true) @PathParam("streamId") String streamid,
@ApiParam(name = "entity", value = "Name/ID of user or email address to remove from alert receivers.", required = true) @QueryParam("entity") String entity,
@ApiParam(name = "type", value = "Type: users or emails", required = true) @QueryParam("type") String type) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_EDIT, streamid);
if (!type.equals("users") && !type.equals("emails")) {
LOG.warn("No such type: [{}]", type);
throw new BadRequestException();
}
final Stream stream = streamService.load(streamid);
streamService.removeAlertReceiver(stream, type, entity);
}
@POST
@Timed
@Path("sendDummyAlert")
@ApiOperation(value = "Send a test mail for a given stream")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
public Response sendDummyAlert(@ApiParam(name = "streamId", value = "The stream id the dummy alert should be sent for.", required = true)
@PathParam("streamId") String streamid)
throws TransportConfigurationException, EmailException, NotFoundException {
checkPermission(RestPermissions.STREAMS_EDIT, streamid);
final Stream stream = streamService.load(streamid);
final DummyAlertCondition dummyAlertCondition = new DummyAlertCondition(stream, null, Tools.nowUTC(), getSubject().getPrincipal().toString(), Collections.emptyMap());
try {
AbstractAlertCondition.CheckResult checkResult = dummyAlertCondition.runCheck();
List callConfigurations = alarmCallbackConfigurationService.getForStream(stream);
if (callConfigurations.size() > 0)
for (AlarmCallbackConfiguration configuration : callConfigurations) {
AlarmCallback alarmCallback = alarmCallbackFactory.create(configuration);
alarmCallback.call(stream, checkResult);
}
else {
emailAlarmCallback.call(stream, checkResult);
}
} catch (AlarmCallbackException | ClassNotFoundException | AlarmCallbackConfigurationException e) {
throw new InternalServerErrorException(e.getMessage(), e);
}
return Response.noContent().build();
}
}
