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/* Copyright 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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 <bitset>
#include <initializer_list>
#include <vector>
#include "mongo/base/status.h"
#include "mongo/db/auth/action_type.h"
namespace mongo {
/*
* An ActionSet is a bitmask of ActionTypes that represents a set of actions.
* These are the actions that a Privilege can grant a user to perform on a resource.
* If the special ActionType::anyAction is granted to this set, it automatically sets all bits
* in the bitmask, indicating that it contains all possible actions.
*/
class ActionSet {
public:
ActionSet() : _actions(0) {}
ActionSet(std::initializer_list<ActionType> actions);
void addAction(const ActionType& action);
void addAllActionsFromSet(const ActionSet& actionSet);
void addAllActions();
// Removes action from the set. Also removes the "anyAction" action, if present.
// Note: removing the "anyAction" action does *not* remove all other actions.
void removeAction(const ActionType& action);
void removeAllActionsFromSet(const ActionSet& actionSet);
void removeAllActions();
bool empty() const {
return _actions.none();
}
bool equals(const ActionSet& other) const {
return this->_actions == other._actions;
}
bool contains(const ActionType& action) const;
// Returns true only if this ActionSet contains all the actions present in the 'other'
// ActionSet.
bool isSupersetOf(const ActionSet& other) const;
// Returns the std::string representation of this ActionSet
std::string toString() const;
// Returns a vector of strings representing the actions in the ActionSet.
std::vector<std::string> getActionsAsStrings() const;
// Takes a comma-separated std::string of action type std::string representations and returns
// an int bitmask of the actions.
static Status parseActionSetFromString(const std::string& actionsString, ActionSet* result);
// Takes a vector of action type std::string representations and writes into *result an
// ActionSet of all valid actions encountered.
// If it encounters any actions that it doesn't recognize, will put those into
// *unrecognizedActions, while still returning the valid actions in *result, and returning OK.
static Status parseActionSetFromStringVector(const std::vector<std::string>& actionsVector,
ActionSet* result,
std::vector<std::string>* unrecognizedActions);
private:
// bitmask of actions this privilege grants
std::bitset<ActionType::NUM_ACTION_TYPES> _actions;
};
static inline bool operator==(const ActionSet& lhs, const ActionSet& rhs) {
return lhs.equals(rhs);
}
} // namespace mongo
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