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/**
* Copyright (C) 2022-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.
*/
#pragma once
#include <array>
#include <vector>
#include "mongo/base/data_range.h"
#include "mongo/base/data_type_validated.h"
#include "mongo/base/status_with.h"
#include "mongo/base/string_data.h"
#include "mongo/bson/bsonelement.h"
#include "mongo/bson/bsonmisc.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/bsontypes.h"
#include "mongo/crypto/encryption_fields_gen.h"
#include "mongo/crypto/fle_crypto_types.h"
#include "mongo/crypto/fle_field_schema_gen.h"
#include "mongo/crypto/symmetric_crypto.h"
#include "mongo/db/exec/document_value/value.h"
#include "mongo/db/namespace_string.h"
#include "mongo/rpc/object_check.h"
#include "mongo/util/uuid.h"
namespace mongo {
class EncryptedPredicateEvaluator {
public:
EncryptedPredicateEvaluator(ConstDataRange serverToken,
int64_t contentionFactor,
std::vector<ConstDataRange> edcTokens);
/**
* Evaluates an encrypted predicate (equality or range), as defined by a contention factor along
* with a list of edc tokens, over an encrypted value.
*
* Returns a boolean indicator.
*/
bool evaluate(Value fieldValue,
EncryptedBinDataType indexedValueType,
std::function<std::vector<EDCDerivedFromDataTokenAndContentionFactorToken>(
ConstDataRange, ConstDataRange)> decryptAndParse) const;
std::vector<PrfBlock> edcTokens() const {
return _edcTokens;
}
PrfBlock serverToken() const {
return _serverToken;
}
int64_t contentionFactor() const {
return _contentionFactor;
}
private:
PrfBlock _serverToken;
std::vector<PrfBlock> _edcTokens;
int64_t _contentionFactor;
stdx::unordered_set<PrfBlock> _cachedEDCTokens;
};
} // namespace mongo
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