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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 <boost/optional.hpp>
#include "mongo/base/status.h"
#include "mongo/base/string_data.h"
#include "mongo/bson/bsontypes.h"
#include "mongo/crypto/encryption_fields_gen.h"
#include "mongo/crypto/fle_field_schema_gen.h"
#include "mongo/db/field_ref.h"
#include "mongo/util/assert_util.h"
namespace mongo {
inline bool isFLE2EqualityIndexedSupportedType(BSONType type) {
switch (type) {
case BinData:
case Code:
case RegEx:
case String:
case NumberInt:
case NumberLong:
case Bool:
case bsonTimestamp:
case Date:
case jstOID:
case Symbol:
case DBRef:
return true;
// Non-deterministic
case CodeWScope:
case Array:
case Object:
case NumberDecimal:
case NumberDouble:
// Singletons
case EOO:
case jstNULL:
case MaxKey:
case MinKey:
case Undefined:
return false;
default:
MONGO_UNREACHABLE;
}
}
inline bool isFLE2RangeIndexedSupportedType(BSONType type) {
switch (type) {
case NumberInt:
case NumberLong:
case NumberDecimal:
case NumberDouble:
case Date:
return true;
// Valid for FLE Equality but not for Range.
case bsonTimestamp:
case Bool:
case BinData:
case Code:
case RegEx:
case String:
case jstOID:
case Symbol:
case DBRef:
// Non-deterministic
case CodeWScope:
case Array:
case Object:
// Singletons
case EOO:
case jstNULL:
case MaxKey:
case MinKey:
case Undefined:
return false;
}
MONGO_UNREACHABLE;
}
inline bool isFLE2UnindexedSupportedType(BSONType type) {
switch (type) {
case BinData:
case Code:
case RegEx:
case String:
case NumberInt:
case NumberLong:
case Bool:
case bsonTimestamp:
case Date:
case jstOID:
case Array:
case Object:
case NumberDecimal:
case NumberDouble:
// Deprecated
case Symbol:
case CodeWScope:
case DBRef:
return true;
// Singletons
case EOO:
case jstNULL:
case MaxKey:
case MinKey:
case Undefined:
return false;
default:
MONGO_UNREACHABLE;
}
}
// Wrapper of the three helper functions above. Should only be used on FLE type 6, 7, and 9.
inline bool isFLE2SupportedType(EncryptedBinDataType fleType, BSONType bsonType) {
switch (fleType) {
case EncryptedBinDataType::kFLE2UnindexedEncryptedValue:
return isFLE2UnindexedSupportedType(bsonType);
case EncryptedBinDataType::kFLE2EqualityIndexedValue:
return isFLE2EqualityIndexedSupportedType(bsonType);
case EncryptedBinDataType::kFLE2RangeIndexedValue:
return isFLE2RangeIndexedSupportedType(bsonType);
default:
MONGO_UNREACHABLE;
}
}
struct EncryptedFieldMatchResult {
FieldRef encryptedField;
bool keyIsPrefixOrEqual;
};
boost::optional<EncryptedFieldMatchResult> findMatchingEncryptedField(
const FieldRef& key, const std::vector<FieldRef>& encryptedFields);
} // namespace mongo
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