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/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog2.rest.resources.alarmcallbacks;
import com.codahale.metrics.annotation.Timed;
import com.google.common.collect.Maps;
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.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.audit.jersey.NoAuditEvent;
import org.graylog2.database.NotFoundException;
import org.graylog2.plugin.Tools;
import org.graylog2.plugin.alarms.callbacks.AlarmCallback;
import org.graylog2.plugin.alarms.transports.TransportConfigurationException;
import org.graylog2.plugin.configuration.ConfigurationRequest;
import org.graylog2.plugin.streams.Stream;
import org.graylog2.rest.models.alarmcallbacks.AlarmCallbackListSummary;
import org.graylog2.rest.models.alarmcallbacks.AlarmCallbackSummary;
import org.graylog2.rest.models.alarmcallbacks.responses.AvailableAlarmCallbackSummaryResponse;
import org.graylog2.rest.models.alarmcallbacks.responses.AvailableAlarmCallbacksResponse;
import org.graylog2.shared.rest.resources.RestResource;
import org.graylog2.shared.security.RestPermissions;
import org.graylog2.streams.StreamService;
import javax.inject.Inject;
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 java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import static org.graylog2.shared.security.RestPermissions.STREAMS_READ;
import static org.graylog2.shared.security.RestPermissions.USERS_LIST;
@RequiresAuthentication
@Api(value = "AlarmCallbacks", description = "Manage legacy alarm callbacks (aka alert notifications)")
@Path("/alerts/callbacks")
@Produces(MediaType.APPLICATION_JSON)
public class AlarmCallbacksResource extends RestResource {
private final AlarmCallbackConfigurationService alarmCallbackConfigurationService;
private final StreamService streamService;
private final Set availableAlarmCallbacks;
private final AlarmCallbackFactory alarmCallbackFactory;
@Inject
public AlarmCallbacksResource(AlarmCallbackConfigurationService alarmCallbackConfigurationService,
StreamService streamService,
Set availableAlarmCallbacks,
AlarmCallbackFactory alarmCallbackFactory) {
this.alarmCallbackConfigurationService = alarmCallbackConfigurationService;
this.streamService = streamService;
this.availableAlarmCallbacks = availableAlarmCallbacks;
this.alarmCallbackFactory = alarmCallbackFactory;
}
@GET
@Timed
@ApiOperation(value = "Get a list of all alarm callbacks")
public AlarmCallbackListSummary all() throws NotFoundException {
final List alarmCallbacks = streamService.loadAll().stream()
.filter(stream -> isPermitted(STREAMS_READ, stream.getId()))
.flatMap(stream -> alarmCallbackConfigurationService.getForStream(stream).stream()
.map(callback -> AlarmCallbackSummary.create(
callback.getId(),
callback.getStreamId(),
callback.getType(),
callback.getTitle(),
callback.getConfiguration(),
callback.getCreatedAt(),
callback.getCreatorUserId()
)))
.collect(Collectors.toList());
return AlarmCallbackListSummary.create(alarmCallbacks);
}
@GET
@Path("/types")
@Timed
@ApiOperation(value = "Get a list of all alarm callbacks types")
public AvailableAlarmCallbacksResponse available() {
final Map types = Maps.newHashMapWithExpectedSize(availableAlarmCallbacks.size());
for (AlarmCallback availableAlarmCallback : availableAlarmCallbacks) {
final AvailableAlarmCallbackSummaryResponse type = new AvailableAlarmCallbackSummaryResponse();
type.name = availableAlarmCallback.getName();
type.requested_configuration = getConfigurationRequest(availableAlarmCallback).asList();
types.put(availableAlarmCallback.getClass().getCanonicalName(), type);
}
final AvailableAlarmCallbacksResponse response = new AvailableAlarmCallbacksResponse();
response.types = types;
return response;
}
@POST
@Timed
@Path("/{alarmCallbackId}/test")
@ApiOperation(value = "Send a test alert for a given alarm callback")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Alarm callback not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId."),
@ApiResponse(code = 500, message = "Error while testing alarm callback")
})
@NoAuditEvent("only used to test alert notifications")
public Response test(@ApiParam(name = "alarmCallbackId", value = "The alarm callback id to send a test alert for.", required = true)
@PathParam("alarmCallbackId") String alarmCallbackId) throws TransportConfigurationException, EmailException, NotFoundException {
final AlarmCallbackConfiguration alarmCallbackConfiguration = alarmCallbackConfigurationService.load(alarmCallbackId);
final String streamId = alarmCallbackConfiguration.getStreamId();
checkPermission(RestPermissions.STREAMS_EDIT, streamId);
final Stream stream = streamService.load(streamId);
final DummyAlertCondition testAlertCondition = new DummyAlertCondition(stream, null, Tools.nowUTC(), getSubject().getPrincipal().toString(), Collections.emptyMap(), "Test Alert");
try {
AbstractAlertCondition.CheckResult checkResult = testAlertCondition.runCheck();
AlarmCallback alarmCallback = alarmCallbackFactory.create(alarmCallbackConfiguration);
alarmCallback.call(stream, checkResult);
} catch (Exception e) {
throw new InternalServerErrorException(e.getMessage(), e);
}
return Response.ok().build();
}
/* This is used to add user auto-completion to EmailAlarmCallback when the current user has permissions to list users */
private ConfigurationRequest getConfigurationRequest(AlarmCallback callback) {
if (callback instanceof EmailAlarmCallback && isPermitted(USERS_LIST)) {
return ((EmailAlarmCallback) callback).getEnrichedRequestedConfiguration();
}
return callback.getRequestedConfiguration();
}
}
