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/**
* Copyright (C) 2018 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::kSharding
#include "mongo/platform/basic.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/catalog_raii.h"
#include "mongo/db/commands.h"
#include "mongo/db/s/database_sharding_state.h"
#include "mongo/s/request_types/get_database_version_gen.h"
#include "mongo/util/stringutils.h"
namespace mongo {
namespace {
class GetDatabaseVersion : public BasicCommand {
public:
GetDatabaseVersion() : BasicCommand("getDatabaseVersion") {}
std::string help() const override {
return " example: { getDatabaseVersion : 'foo' } ";
}
bool supportsWriteConcern(const BSONObj& cmd) const override {
return false;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
bool adminOnly() const override {
return true;
}
Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) const override {
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(cmdObj.firstElement().str()),
ActionType::getDatabaseVersion)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
bool run(OperationContext* opCtx,
const std::string& dbname_unused,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
uassert(ErrorCodes::IllegalOperation,
str::stream() << getName() << " can only be run on shard servers",
serverGlobalParams.clusterRole == ClusterRole::ShardServer);
const auto request = GetDatabaseVersionRequest::parse(
IDLParserErrorContext("getDatabaseVersion command"), cmdObj);
AutoGetDb autoDb(opCtx, request.getDatabaseVersion(), MODE_IS);
if (!autoDb.getDb()) {
result.append("dbVersion", BSONObj());
return true;
}
auto const dbVersion = DatabaseShardingState::get(autoDb.getDb()).getDbVersion(opCtx);
if (dbVersion) {
result.append("dbVersion", dbVersion->toBSON());
} else {
result.append("dbVersion", BSONObj());
}
return true;
}
} getDatabaseVersionCmd;
} // namespace
} // namespace mongo
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