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/**
* Copyright (C) 2018-present MongoDB, 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
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/feature_compatibility_version.h"
#include "mongo/db/curop.h"
#include "mongo/db/s/drop_collection_coordinator.h"
#include "mongo/db/s/sharding_ddl_coordinator_gen.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/logv2/log.h"
#include "mongo/s/catalog/sharding_catalog_client.h"
#include "mongo/s/collection_routing_info_targeter.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/sharded_ddl_commands_gen.h"
#include "mongo/s/sharding_feature_flags_gen.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kSharding
namespace mongo {
namespace {
class ShardsvrDropCollectionCommand final : public TypedCommand<ShardsvrDropCollectionCommand> {
public:
using Request = ShardsvrDropCollection;
std::string help() const override {
return "Internal command, which is exported by the primary sharding server. Do not call "
"directly. Drops a collection.";
}
bool skipApiVersionCheck() const override {
// Internal command (server to server).
return true;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return Command::AllowedOnSecondary::kNever;
}
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
void typedRun(OperationContext* opCtx) {
uassertStatusOK(ShardingState::get(opCtx)->canAcceptShardedCommands());
CommandHelpers::uassertCommandRunWithMajority(Request::kCommandName,
opCtx->getWriteConcern());
opCtx->setAlwaysInterruptAtStepDownOrUp_UNSAFE();
try {
const auto coll = Grid::get(opCtx)->catalogClient()->getCollection(opCtx, ns());
uassert(ErrorCodes::NotImplemented,
"drop collection of a sharded time-series collection is not supported",
!coll.getTimeseriesFields());
} catch (ExceptionFor<ErrorCodes::NamespaceNotFound>&) {
// The collection is not sharded or doesn't exist.
}
// Since this operation is not directly writing locally we need to force its db
// profile level increase in order to be logged in "<db>.system.profile"
CurOp::get(opCtx)->raiseDbProfileLevel(
CollectionCatalog::get(opCtx)->getDatabaseProfileLevel(ns().dbName()));
auto dropCollCoordinator = [&] {
FixedFCVRegion fixedFcvRegion{opCtx};
const auto targetNss = [&] {
if (!feature_flags::gImplicitDDLTimeseriesNssTranslation.isEnabled(
*fixedFcvRegion)) {
// If 'ns()' is a sharded time-series view collection, 'targetNs' is a
// namespace for time-series buckets collection. For all other collections,
// 'targetNs' is equal to 'ns()'.
return CollectionRoutingInfoTargeter(opCtx, ns()).getNS();
}
return ns();
}();
// TODO SERVER-73627: Remove once 7.0 becomes last LTS.
const DDLCoordinatorTypeEnum coordType =
feature_flags::gDropCollectionHoldingCriticalSection.isEnabled(*fixedFcvRegion)
? DDLCoordinatorTypeEnum::kDropCollection
: DDLCoordinatorTypeEnum::kDropCollectionPre70Compatible;
auto coordinatorDoc = DropCollectionCoordinatorDocument();
coordinatorDoc.setShardingDDLCoordinatorMetadata({{targetNss, coordType}});
coordinatorDoc.setCollectionUUID(request().getCollectionUUID());
auto service = ShardingDDLCoordinatorService::getService(opCtx);
return checked_pointer_cast<DropCollectionCoordinator>(
service->getOrCreateInstance(opCtx, coordinatorDoc.toBSON()));
}();
dropCollCoordinator->getCompletionFuture().get(opCtx);
}
private:
NamespaceString ns() const override {
return request().getNamespace();
}
bool supportsWriteConcern() const override {
return true;
}
void doCheckAuthorization(OperationContext* opCtx) const override {
uassert(ErrorCodes::Unauthorized,
"Unauthorized",
AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::internal));
}
};
} sharsvrdDropCollectionCommand;
} // namespace
} // namespace mongo
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