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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/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/logv2/log.h"
#include "mongo/s/catalog/type_shard.h"
#include "mongo/s/catalog_cache.h"
#include "mongo/s/cluster_commands_helpers.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/move_primary_gen.h"
#include "mongo/util/scopeguard.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kCommand
namespace mongo {
using std::string;
namespace {
class MoveDatabasePrimaryCommand : public BasicCommand {
public:
MoveDatabasePrimaryCommand() : BasicCommand("movePrimary", "moveprimary") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
virtual bool adminOnly() const {
return true;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
std::string help() const override {
return " example: { moveprimary : 'foo' , to : 'localhost:9999' }";
}
virtual Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) const {
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(parseNs({boost::none, dbname}, cmdObj).db()),
ActionType::moveChunk)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
NamespaceString parseNs(const DatabaseName& dbName, const BSONObj& cmdObj) const override {
const auto nsElt = cmdObj.firstElement();
uassert(ErrorCodes::InvalidNamespace,
"'movePrimary' must be of type String",
nsElt.type() == BSONType::String);
return NamespaceString(dbName.tenantId(), nsElt.str());
}
virtual bool run(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj,
BSONObjBuilder& result) {
auto request = MovePrimary::parse(IDLParserContext("MovePrimary"), cmdObj);
const string db = parseNs(dbName, cmdObj).dbName().db();
const StringData toShard(request.getTo());
// Invalidate the routing table cache entry for this database so that we reload the
// collection the next time it's accessed, even if we receive a failure, e.g. NetworkError.
ON_BLOCK_EXIT([opCtx, db] { Grid::get(opCtx)->catalogCache()->purgeDatabase(db); });
ShardMovePrimary movePrimaryRequest;
movePrimaryRequest.set_shardsvrMovePrimary(NamespaceString(db));
movePrimaryRequest.setTo(toShard);
auto catalogCache = Grid::get(opCtx)->catalogCache();
const auto dbInfo = uassertStatusOK(catalogCache->getDatabase(opCtx, db));
auto cmdResponse = executeCommandAgainstDatabasePrimary(
opCtx,
"admin",
dbInfo,
CommandHelpers::appendMajorityWriteConcern(
CommandHelpers::appendGenericCommandArgs(cmdObj, movePrimaryRequest.toBSON())),
ReadPreferenceSetting(ReadPreference::PrimaryOnly),
Shard::RetryPolicy::kIdempotent);
const auto remoteResponse = uassertStatusOK(cmdResponse.swResponse);
CommandHelpers::filterCommandReplyForPassthrough(remoteResponse.data, &result);
return true;
}
} clusterMovePrimaryCmd;
} // namespace
} // namespace mongo
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