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/**
* Copyright (C) 2017 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kCommand
#include "mongo/platform/basic.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/db/audit.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/rpc/write_concern_error_detail.h"
#include "mongo/s/catalog/sharding_catalog_client.h"
#include "mongo/s/catalog/type_shard.h"
#include "mongo/s/catalog_cache.h"
#include "mongo/s/client/shard_registry.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/log.h"
#include "mongo/util/scopeguard.h"
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(dbname, cmdObj)), ActionType::moveChunk)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
virtual std::string parseNs(const std::string& dbname, const BSONObj& cmdObj) const {
const auto nsElt = cmdObj.firstElement();
uassert(ErrorCodes::InvalidNamespace,
"'movePrimary' must be of type String",
nsElt.type() == BSONType::String);
return nsElt.str();
}
virtual bool run(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& cmdObj,
BSONObjBuilder& result) {
auto movePrimaryRequest = MovePrimary::parse(IDLParserErrorContext("MovePrimary"), cmdObj);
const string db = parseNs("", cmdObj);
const NamespaceString nss(db);
ConfigsvrMovePrimary configMovePrimaryRequest;
configMovePrimaryRequest.set_configsvrMovePrimary(nss);
configMovePrimaryRequest.setTo(movePrimaryRequest.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); });
auto configShard = Grid::get(opCtx)->shardRegistry()->getConfigShard();
auto cmdResponse = uassertStatusOK(configShard->runCommandWithFixedRetryAttempts(
opCtx,
ReadPreferenceSetting(ReadPreference::PrimaryOnly),
"admin",
CommandHelpers::appendMajorityWriteConcern(
CommandHelpers::appendPassthroughFields(cmdObj, configMovePrimaryRequest.toBSON())),
Shard::RetryPolicy::kIdempotent));
CommandHelpers::filterCommandReplyForPassthrough(cmdResponse.response, &result);
return true;
}
} clusterMovePrimaryCmd;
} // namespace
} // namespace mongo
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