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path: root/src/mongo/s/commands/cluster_current_op.cpp
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/*
 *    Copyright (C) 2015 MongoDB Inc.
 *
 *    This program is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    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
 *    GNU Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the GNU Affero General Public License in all respects
 *    for all of the code used other than as permitted herein. If you modify
 *    file(s) with this exception, you may extend this exception to your
 *    version of the file(s), but you are not obligated to do so. If you do not
 *    wish to do so, delete this exception statement from your version. If you
 *    delete this exception statement from all source files in the program,
 *    then also delete it in the license file.
 */

#include "mongo/platform/basic.h"

#include "mongo/db/commands/current_op_common.h"

#include <tuple>
#include <vector>

#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/client.h"
#include "mongo/db/pipeline/document.h"
#include "mongo/s/query/cluster_aggregate.h"

namespace mongo {
namespace {

class ClusterCurrentOpCommand final : public CurrentOpCommandBase {
    MONGO_DISALLOW_COPYING(ClusterCurrentOpCommand);

public:
    ClusterCurrentOpCommand() = default;

    Status checkAuthForCommand(Client* client,
                               const std::string& dbName,
                               const BSONObj& cmdObj) const final {
        bool isAuthorized = AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
            ResourcePattern::forClusterResource(), ActionType::inprog);

        return isAuthorized ? Status::OK() : Status(ErrorCodes::Unauthorized, "Unauthorized");
    }

private:
    virtual void modifyPipeline(std::vector<BSONObj>* pipeline) const final {
        BSONObjBuilder sortBuilder;

        BSONObjBuilder sortSpecBuilder(sortBuilder.subobjStart("$sort"));
        sortSpecBuilder.append("shard", 1);
        sortSpecBuilder.doneFast();

        pipeline->push_back(sortBuilder.obj());
    }

    virtual StatusWith<CursorResponse> runAggregation(
        OperationContext* opCtx, const AggregationRequest& request) const final {
        auto aggCmdObj = request.serializeToCommandObj().toBson();
        auto nss = request.getNamespaceString();

        BSONObjBuilder responseBuilder;

        auto status = ClusterAggregate::runAggregate(opCtx,
                                                     ClusterAggregate::Namespaces{nss, nss},
                                                     request,
                                                     std::move(aggCmdObj),
                                                     &responseBuilder);

        if (!status.isOK()) {
            return status;
        }

        CommandHelpers::appendSimpleCommandStatus(responseBuilder, true);

        return CursorResponse::parseFromBSON(responseBuilder.obj());
    }

} clusterCurrentOpCmd;

}  // namespace
}  // namespace mongo