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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.streams.outputs;
import com.codahale.metrics.annotation.Timed;
import com.google.common.collect.ImmutableSet;
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.shiro.authz.annotation.RequiresAuthentication;
import org.bson.types.ObjectId;
import org.graylog2.audit.AuditEventTypes;
import org.graylog2.audit.jersey.AuditEvent;
import org.graylog2.database.NotFoundException;
import org.graylog2.plugin.streams.Output;
import org.graylog2.plugin.streams.Stream;
import org.graylog2.rest.models.streams.outputs.OutputListResponse;
import org.graylog2.rest.models.streams.outputs.requests.AddOutputRequest;
import org.graylog2.rest.models.system.outputs.responses.OutputSummary;
import org.graylog2.shared.rest.resources.RestResource;
import org.graylog2.shared.security.RestPermissions;
import org.graylog2.streams.OutputService;
import org.graylog2.streams.StreamService;
import org.joda.time.DateTime;
import javax.inject.Inject;
import javax.validation.Valid;
import javax.validation.constraints.NotNull;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
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.HashMap;
import java.util.HashSet;
import java.util.Set;
@RequiresAuthentication
@Api(value = "StreamOutputs", description = "Manage stream outputs for a given stream")
@Path("/streams/{streamid}/outputs")
public class StreamOutputResource extends RestResource {
private final OutputService outputService;
private final StreamService streamService;
@Inject
public StreamOutputResource(OutputService outputService,
StreamService streamService) {
this.outputService = outputService;
this.streamService = streamService;
}
@GET
@Timed
@ApiOperation(value = "Get a list of all outputs for a stream")
@Produces(MediaType.APPLICATION_JSON)
@ApiResponses(value = {
@ApiResponse(code = 404, message = "No such stream on this node.")
})
public OutputListResponse get(@ApiParam(name = "streamid", value = "The id of the stream whose outputs we want.", required = true)
@PathParam("streamid") String streamid) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_READ, streamid);
checkPermission(RestPermissions.STREAM_OUTPUTS_READ);
final Stream stream = streamService.load(streamid);
final Set outputs = new HashSet<>();
for (Output output : stream.getOutputs()) {
outputs.add(OutputSummary.create(
output.getId(),
output.getTitle(),
output.getType(),
output.getCreatorUserId(),
new DateTime(output.getCreatedAt()),
new HashMap<>(output.getConfiguration()),
output.getContentPack()
));
}
return OutputListResponse.create(outputs);
}
@GET
@Path("/{outputId}")
@Timed
@ApiOperation(value = "Get specific output of a stream")
@Produces(MediaType.APPLICATION_JSON)
@ApiResponses(value = {
@ApiResponse(code = 404, message = "No such stream/output on this node.")
})
public OutputSummary get(@ApiParam(name = "streamid", value = "The id of the stream whose outputs we want.", required = true) @PathParam("streamid") String streamid,
@ApiParam(name = "outputId", value = "The id of the output we want.", required = true) @PathParam("outputId") String outputId) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_READ, streamid);
checkPermission(RestPermissions.STREAM_OUTPUTS_READ, outputId);
final Output output = outputService.load(outputId);
return OutputSummary.create(
output.getId(), output.getTitle(), output.getType(), output.getCreatorUserId(), new DateTime(output.getCreatedAt()), output.getConfiguration(), output.getContentPack()
);
}
@POST
@Timed
@ApiOperation(value = "Associate outputs with a stream")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
@ApiResponses(value = {
@ApiResponse(code = 400, message = "Invalid output specification in input.")
})
@AuditEvent(type = AuditEventTypes.STREAM_OUTPUT_ASSIGNMENT_CREATE)
public Response add(@ApiParam(name = "streamid", value = "The id of the stream whose outputs we want.", required = true)
@PathParam("streamid") String streamid,
@ApiParam(name = "JSON body", required = true)
@Valid @NotNull AddOutputRequest aor) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_EDIT, streamid);
checkPermission(RestPermissions.STREAM_OUTPUTS_CREATE);
checkNotEditable(streamid, "Cannot assign outputs to a non-editable stream.");
// Check if stream exists
streamService.load(streamid);
final Set outputs = aor.outputs();
final ImmutableSet.Builder outputIds = ImmutableSet.builderWithExpectedSize(outputs.size());
for (String outputId : outputs) {
// Check if output exists
outputService.load(outputId);
outputIds.add(new ObjectId(outputId));
}
streamService.addOutputs(new ObjectId(streamid), outputIds.build());
return Response.accepted().build();
}
@DELETE
@Path("/{outputId}")
@Timed
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(value = "Delete output of a stream")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "No such stream/output on this node.")
})
@AuditEvent(type = AuditEventTypes.STREAM_OUTPUT_ASSIGNMENT_DELETE)
public void remove(@ApiParam(name = "streamid", value = "The id of the stream whose outputs we want.", required = true)
@PathParam("streamid") String streamid,
@ApiParam(name = "outputId", value = "The id of the output that should be deleted", required = true)
@PathParam("outputId") String outputId) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_EDIT, streamid);
checkPermission(RestPermissions.STREAM_OUTPUTS_DELETE, outputId);
final Stream stream = streamService.load(streamid);
final Output output = outputService.load(outputId);
streamService.removeOutput(stream, output);
}
private void checkNotEditable(String streamId, String message) {
if (!Stream.streamIsEditable(streamId)) {
throw new BadRequestException(message);
}
}
}
