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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.
*/
#pragma once
#include <array>
#include <bitset>
#include <initializer_list>
#include "mongo/db/auth/access_checks_gen.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/privilege.h"
namespace mongo {
/**
* Contains an authorization contract which is the set of authorization checks a command is
* permitted to make against AuthorizationSession.
*
* There are two types of authorization checks:
* 1. Checks for privileges
* 2. Other forms of checks, simply called access check. These are generally boolean functions on
* AuthorizationSession that check criteria like isAuthorized().
*
* This class is a lossy set.
* 1. It does not record a count of times a check has been performed.
* 2. It does not record which namespace a check is performed against.
*/
class AuthorizationContract {
public:
AuthorizationContract() = default;
template <typename Checks, typename Privileges>
AuthorizationContract(const Checks& checks, const Privileges& privileges) {
for (const auto check : checks) {
addAccessCheck(check);
}
for (const auto& p : privileges) {
addPrivilege(p);
}
}
AuthorizationContract(const AuthorizationContract& other) {
_checks = other._checks;
_privilegeChecks = other._privilegeChecks;
}
/**
* Clear the authorization contract
*/
void clear();
/**
* Add a access check to the contract.
*/
void addAccessCheck(AccessCheckEnum check);
/**
* Add a privilege and all actions contained in the privilege to the contract.
*/
void addPrivilege(const Privilege& p);
/**
* Check if the contract contains a given access check.
*/
bool hasAccessCheck(AccessCheckEnum check) const;
/**
* Check if the contract contains a privilege include all actions in the privilege.
*/
bool hasPrivileges(const Privilege& p) const;
/**
* Check if this contract contains all the checks of the other contract.
*/
bool contains(const AuthorizationContract& other) const;
private:
mutable Mutex _mutex = MONGO_MAKE_LATCH("AuthorizationContract::_mutex");
// Set of access checks performed
std::bitset<kNumAccessCheckEnum> _checks;
// Set of privileges performed per resource pattern type
std::array<ActionSet, kNumMatchTypeEnum> _privilegeChecks;
};
} // namespace mongo
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