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/**
* Copyright (C) 2021-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/query/allowed_contexts.h"
#include "mongo/transport/session.h"
namespace mongo {
void assertLanguageFeatureIsAllowed(
const OperationContext* opCtx,
StringData operatorName,
AllowedWithApiStrict allowedWithApiStrict,
AllowedWithClientType allowedWithClientType,
boost::optional<std::function<void(const APIParameters&)>> conditionalCallback) {
assertAllowedInternalIfRequired(opCtx, operatorName, allowedWithClientType);
const auto apiParameters = APIParameters::get(opCtx);
const auto isInternal = isInternalClient(opCtx->getClient());
const auto apiVersion = apiParameters.getAPIVersion().value_or("");
const auto apiStrict = apiParameters.getAPIStrict().value_or(false);
if (!apiStrict) {
return;
}
switch (allowedWithApiStrict) {
case AllowedWithApiStrict::kNeverInVersion1: {
uassert(ErrorCodes::APIStrictError,
str::stream() << operatorName
<< " is not allowed with 'apiStrict: true' in API Version "
<< apiVersion,
apiVersion != "1");
break;
}
case AllowedWithApiStrict::kInternal: {
uassert(ErrorCodes::APIStrictError,
str::stream() << operatorName
<< " cannot be specified with 'apiStrict: true' in API Version "
<< apiVersion,
isInternal);
break;
}
case AllowedWithApiStrict::kConditionally: {
if (auto callback = conditionalCallback) {
(*callback)(apiParameters);
}
break;
}
case AllowedWithApiStrict::kAlways: {
break;
}
}
}
/**
* An internal client could be one of the following :
* - Does not have any transport session
* - The transport session tag is internal
*/
bool isInternalClient(const Client* client) {
return client &&
(!client->session() ||
(client->session()->getTags() & transport::Session::kInternalClient));
}
/**
* If the AllowedWithClientType requires that the session be internal assert that it is.
*/
void assertAllowedInternalIfRequired(const OperationContext* opCtx,
StringData operatorName,
AllowedWithClientType allowedWithClientType) {
const auto isInternal = isInternalClient(opCtx->getClient());
uassert(5491300,
str::stream() << operatorName << "' is not allowed in user requests",
!(allowedWithClientType == AllowedWithClientType::kInternal && !isInternal));
}
} // namespace mongo
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