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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.alarmcallbacks;
import com.codahale.metrics.annotation.Timed;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiOperation;
import com.wordnik.swagger.annotations.ApiParam;
import com.wordnik.swagger.annotations.ApiResponse;
import com.wordnik.swagger.annotations.ApiResponses;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
import org.graylog2.alarmcallbacks.AlarmCallbackConfiguration;
import org.graylog2.alarmcallbacks.AlarmCallbackConfigurationService;
import org.graylog2.alarmcallbacks.CreateAlarmCallbackRequest;
import org.graylog2.database.NotFoundException;
import org.graylog2.plugin.database.ValidationException;
import org.graylog2.plugin.alarms.callbacks.AlarmCallback;
import org.graylog2.plugin.streams.Stream;
import org.graylog2.shared.rest.resources.RestResource;
import org.graylog2.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.Consumes;
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.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
import java.net.URI;
import java.util.List;
import java.util.Map;
import java.util.Set;
@RequiresAuthentication
@Api(value = "AlarmCallbacks", description = "Manage stream alarm callbacks")
@Path("/streams/{streamid}/alarmcallbacks")
public class AlarmCallbackResource extends RestResource {
private static final Logger LOG = LoggerFactory.getLogger(AlarmCallbackResource.class);
private final AlarmCallbackConfigurationService alarmCallbackConfigurationService;
private final StreamService streamService;
private final Set availableAlarmCallbacks;
@Inject
public AlarmCallbackResource(AlarmCallbackConfigurationService alarmCallbackConfigurationService,
StreamService streamService,
Set availableAlarmCallbacks) {
this.alarmCallbackConfigurationService = alarmCallbackConfigurationService;
this.streamService = streamService;
this.availableAlarmCallbacks = availableAlarmCallbacks;
}
// TODO: add permission checks
@GET
@Timed
@ApiOperation(value = "Get a list of all alarm callbacks for this stream")
@Produces(MediaType.APPLICATION_JSON)
public Map get(@ApiParam(name = "streamid", value = "The id of the stream whose alarm callbacks we want.", required = true)
@PathParam("streamid") String streamid) throws NotFoundException {
final Stream stream = streamService.load(streamid);
final List> alarmCallbacks = Lists.newArrayList();
for (AlarmCallbackConfiguration callback : alarmCallbackConfigurationService.getForStream(stream)) {
alarmCallbacks.add(callback.getFields());
}
return ImmutableMap.of(
"alarmcallbacks", alarmCallbacks,
"total", alarmCallbacks.size());
}
@GET
@Path("/{alarmCallbackId}")
@Timed
@ApiOperation(value = "Get a single specified alarm callback for this stream")
@Produces(MediaType.APPLICATION_JSON)
public Map get(@ApiParam(name = "streamid", value = "The id of the stream whose alarm callbacks we want.", required = true)
@PathParam("streamid") String streamid,
@ApiParam(name = "alarmCallbackId", value = "The alarm callback id we are getting", required = true)
@PathParam("alarmCallbackId") String alarmCallbackId) throws NotFoundException {
final Stream stream = streamService.load(streamid);
final AlarmCallbackConfiguration result = alarmCallbackConfigurationService.load(alarmCallbackId);
if (result == null || !result.getStreamId().equals(stream.getId())) {
throw new javax.ws.rs.NotFoundException();
}
return result.getFields();
}
@POST
@Timed
@ApiOperation(value = "Create an alarm callback")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response create(@ApiParam(name = "streamid", value = "The stream id this new alarm callback belongs to.", required = true)
@PathParam("streamid") String streamid,
@ApiParam(name = "JSON body", required = true) CreateAlarmCallbackRequest cr) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_EDIT, streamid);
final Stream stream = streamService.load(streamid);
final AlarmCallbackConfiguration alarmCallbackConfiguration = alarmCallbackConfigurationService.create(streamid, cr, getCurrentUser().getName());
alarmCallbackConfiguration.setStream(stream);
final String id;
try {
id = alarmCallbackConfigurationService.save(alarmCallbackConfiguration);
} catch (ValidationException e) {
LOG.error("Validation error.", e);
throw new BadRequestException(e);
}
final Map result = ImmutableMap.of("alarmcallback_id", id);
final URI alarmCallbackUri = UriBuilder.fromResource(AlarmCallbackResource.class)
.path("{alarmCallbackId}")
.build(streamid, id);
return Response.created(alarmCallbackUri).entity(result).build();
}
@GET
@Path("/available")
@Timed
@ApiOperation(value = "Get a list of all alarm callback types")
@Produces(MediaType.APPLICATION_JSON)
public Map> available(@ApiParam(name = "streamid", value = "The id of the stream whose alarm callbacks we want.", required = true)
@PathParam("streamid") String streamid) {
final Map types = Maps.newHashMapWithExpectedSize(availableAlarmCallbacks.size());
for (AlarmCallback availableAlarmCallback : availableAlarmCallbacks) {
Map type = Maps.newHashMap();
type.put("requested_configuration", availableAlarmCallback.getRequestedConfiguration().asList());
type.put("name", availableAlarmCallback.getName());
types.put(availableAlarmCallback.getClass().getCanonicalName(), type);
}
return ImmutableMap.of("types", types);
}
@DELETE
@Path("/{alarmCallbackId}")
@Timed
@ApiOperation(value = "Delete an alarm callback")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Alarm callback not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
public void delete(@ApiParam(name = "streamid", value = "The stream id this new rule belongs to.", required = true)
@PathParam("streamid") String streamid,
@ApiParam(name = "alarmCallbackId", required = true)
@PathParam("alarmCallbackId") String alarmCallbackId) throws NotFoundException {
final Stream stream = streamService.load(streamid);
final AlarmCallbackConfiguration result = alarmCallbackConfigurationService.load(alarmCallbackId);
if (result == null || !result.getStreamId().equals(stream.getId())) {
throw new javax.ws.rs.NotFoundException();
}
if (alarmCallbackConfigurationService.destroy(result) == 0) {
LOG.error("Couldn't remove alarm callback with id {}", result.getId());
throw new InternalServerErrorException();
}
}
}
