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/**
* Copyright (C) 2019-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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kCommand
#include "mongo/platform/basic.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/rwc_defaults_commands_gen.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/read_write_concern_defaults.h"
#include "mongo/db/rw_concern_default_gen.h"
#include "mongo/s/cluster_commands_helpers.h"
#include "mongo/s/grid.h"
#include "mongo/util/log.h"
namespace mongo {
namespace {
/**
* Implements the setDefaultRWConcern command on mongos. Inherits from BasicCommand because this
* command forwards the user's request to the config server and does not need to parse it.
*/
class ClusterSetDefaultRWConcernCommand : public BasicCommand {
public:
ClusterSetDefaultRWConcernCommand() : BasicCommand("setDefaultRWConcern") {}
bool run(OperationContext* opCtx,
const std::string& dbName,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
auto configShard = Grid::get(opCtx)->shardRegistry()->getConfigShard();
auto cmdResponse = uassertStatusOK(configShard->runCommandWithFixedRetryAttempts(
opCtx,
ReadPreferenceSetting(ReadPreference::PrimaryOnly),
NamespaceString::kAdminDb.toString(),
CommandHelpers::appendMajorityWriteConcern(
CommandHelpers::filterCommandRequestForPassthrough(cmdObj)),
Shard::RetryPolicy::kNotIdempotent));
uassertStatusOK(cmdResponse.commandStatus);
uassertStatusOK(cmdResponse.writeConcernStatus);
CommandHelpers::filterCommandReplyForPassthrough(cmdResponse.response, &result);
return true;
}
bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
Status checkAuthForOperation(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& cmdObj) const override {
// TODO SERVER-45038: add and use privilege action
return Status::OK();
}
std::string help() const override {
return "Sets the default read or write concern for a cluster";
}
bool adminOnly() const override {
return true;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
} clusterSetDefaultRWConcernCommand;
/**
* Implements the getDefaultRWConcern command on mongos.
*/
class ClusterGetDefaultRWConcernCommand final
: public TypedCommand<ClusterGetDefaultRWConcernCommand> {
public:
using Request = GetDefaultRWConcern;
using Response = RWConcernDefault;
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
Response typedRun(OperationContext* opCtx) {
if (request().getInMemory()) {
return ReadWriteConcernDefaults::get(opCtx->getServiceContext()).getDefault(opCtx);
}
GetDefaultRWConcern configsvrRequest;
configsvrRequest.setDbName(request().getDbName());
auto configShard = Grid::get(opCtx)->shardRegistry()->getConfigShard();
auto cmdResponse = uassertStatusOK(configShard->runCommandWithFixedRetryAttempts(
opCtx,
ReadPreferenceSetting(ReadPreference::PrimaryOnly),
NamespaceString::kAdminDb.toString(),
applyReadWriteConcern(opCtx, this, configsvrRequest.toBSON({})),
Shard::RetryPolicy::kIdempotent));
uassertStatusOK(cmdResponse.commandStatus);
return Response::parse(IDLParserErrorContext("ClusterGetDefaultRWConcernResponse"),
cmdResponse.response);
}
private:
bool supportsWriteConcern() const override {
return false;
}
void doCheckAuthorization(OperationContext*) const override {
// TODO SERVER-45038: add and use privilege action
}
NamespaceString ns() const override {
return NamespaceString(request().getDbName(), "");
}
};
std::string help() const override {
return "Gets the default read or write concern for a cluster";
}
bool adminOnly() const override {
return true;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
} clusterGetDefaultRWConcernCommand;
} // namespace
} // namespace mongo
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