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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/platform/basic.h"
#include "mongo/base/status.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/drop_database_gen.h"
#include "mongo/db/operation_context.h"
#include "mongo/rpc/get_status_from_command_result.h"
#include "mongo/s/catalog_cache.h"
#include "mongo/s/cluster_commands_helpers.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/sharded_ddl_commands_gen.h"
#include "mongo/util/scopeguard.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kCommand
namespace mongo {
namespace {
class DropDatabaseCmd : public DropDatabaseCmdVersion1Gen<DropDatabaseCmd> {
public:
AllowedOnSecondary secondaryAllowed(ServiceContext*) const final {
return AllowedOnSecondary::kAlways;
}
class Invocation final : public InvocationBaseGen {
public:
using InvocationBaseGen::InvocationBaseGen;
bool supportsWriteConcern() const final {
return true;
}
NamespaceString ns() const final {
return NamespaceString(request().getDbName());
}
void doCheckAuthorization(OperationContext* opCtx) const final {
uassert(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to drop database '" << request().getDbName()
<< "'",
AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnNamespace(NamespaceString(request().getDbName()),
ActionType::dropDatabase));
}
Reply typedRun(OperationContext* opCtx) final {
auto dbName = request().getDbName();
auto nss = NamespaceString(dbName);
uassert(ErrorCodes::IllegalOperation,
"Cannot drop the config database",
dbName != NamespaceString::kConfigDb);
uassert(ErrorCodes::IllegalOperation,
"Cannot drop the admin database",
dbName != NamespaceString::kAdminDb);
uassert(ErrorCodes::BadValue,
"Must pass 1 as the 'dropDatabase' parameter",
request().getCommandParameter() == 1);
try {
const CachedDatabaseInfo dbInfo =
uassertStatusOK(Grid::get(opCtx)->catalogCache()->getDatabase(opCtx, dbName));
// Invalidate the database metadata so the next access kicks off a full reload, even
// if sending the command to the config server fails due to e.g. a NetworkError.
ON_BLOCK_EXIT(
[opCtx, dbName] { Grid::get(opCtx)->catalogCache()->purgeDatabase(dbName); });
// Send it to the primary shard
ShardsvrDropDatabase dropDatabaseCommand;
dropDatabaseCommand.setDbName(dbName);
auto cmdResponse = executeCommandAgainstDatabasePrimary(
opCtx,
dbName,
dbInfo,
CommandHelpers::appendMajorityWriteConcern(dropDatabaseCommand.toBSON({}),
opCtx->getWriteConcern()),
ReadPreferenceSetting(ReadPreference::PrimaryOnly),
Shard::RetryPolicy::kIdempotent);
const auto remoteResponse = uassertStatusOK(cmdResponse.swResponse);
uassertStatusOK(getStatusFromCommandResult(remoteResponse.data));
} catch (const ExceptionFor<ErrorCodes::NamespaceNotFound>&) {
// If the namespace isn't found, treat the drop as a success
}
return {};
}
};
} clusterDropDatabaseCmd;
} // namespace
} // namespace mongo
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