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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/command_generic_argument.h"
#include <algorithm>
#include <array>
#include <cstdlib>
#include <iterator>
namespace mongo {
namespace {
struct SpecialArgRecord {
StringData name;
bool isGeneric : 1;
bool stripFromRequest : 1;
bool stripFromReply : 1;
};
// Not including "help" since we don't pass help requests through to the command parser.
// If that changes, it should be added. When you add to this list, consider whether you
// should also change the filterCommandRequestForPassthrough() function.
// clang-format off
static constexpr std::array<SpecialArgRecord, 26> specials{{
// /-isGeneric
// | /-stripFromRequest
// | | /-stripFromReply
{"$audit"_sd, 1, 1, 0},
{"$client"_sd, 1, 1, 0},
{"$configServerState"_sd, 1, 1, 1},
{"$db"_sd, 1, 1, 0},
{"allowImplicitCollectionCreation"_sd, 1, 1, 0},
{"$oplogQueryData"_sd, 1, 1, 1},
{"$queryOptions"_sd, 1, 0, 0},
{"$readPreference"_sd, 1, 1, 0},
{"$replData"_sd, 1, 1, 1},
{"$clusterTime"_sd, 1, 1, 1},
{"maxTimeMS"_sd, 1, 0, 0},
{"readConcern"_sd, 1, 0, 0},
{"databaseVersion"_sd, 1, 1, 0},
{"shardVersion"_sd, 1, 1, 0},
{"tracking_info"_sd, 1, 1, 0},
{"writeConcern"_sd, 1, 0, 0},
{"lsid"_sd, 1, 0, 0},
{"txnNumber"_sd, 1, 0, 0},
{"autocommit"_sd, 1, 0, 0},
{"coordinator"_sd, 1, 0, 0},
{"startTransaction"_sd, 1, 0, 0},
{"stmtId"_sd, 1, 0, 0},
{"$gleStats"_sd, 0, 0, 1},
{"operationTime"_sd, 0, 0, 1},
{"lastCommittedOpTime"_sd, 0, 0, 1},
{"readOnly"_sd, 0, 0, 1}}};
// clang-format on
const SpecialArgRecord* findSpecialArg(StringData arg) {
for (const auto& e : specials)
if (e.name == arg)
return &e;
return nullptr;
}
} // namespace
bool isGenericArgument(StringData arg) {
auto p = findSpecialArg(arg);
return p && p->isGeneric;
}
bool isRequestStripArgument(StringData arg) {
auto p = findSpecialArg(arg);
return p && p->stripFromRequest;
}
bool isReplyStripArgument(StringData arg) {
auto p = findSpecialArg(arg);
return p && p->stripFromReply;
}
} // namespace mongo
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