/*    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.
 */

#include "mongo/db/auth/privilege.h"

#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/privilege_parser.h"

namespace mongo {

void Privilege::addPrivilegeToPrivilegeVector(PrivilegeVector* privileges,
                                              const Privilege& privilegeToAdd) {
    for (PrivilegeVector::iterator it = privileges->begin(); it != privileges->end(); ++it) {
        if (it->getResourcePattern() == privilegeToAdd.getResourcePattern()) {
            it->addActions(privilegeToAdd.getActions());
            return;
        }
    }
    // No privilege exists yet for this resource
    privileges->push_back(privilegeToAdd);
}

void Privilege::addPrivilegesToPrivilegeVector(PrivilegeVector* privileges,
                                               const PrivilegeVector& privilegesToAdd) {
    for (auto&& priv : privilegesToAdd) {
        addPrivilegeToPrivilegeVector(privileges, priv);
    }
}

Privilege::Privilege(const ResourcePattern& resource, const ActionType& action)
    : _resource(resource) {
    _actions.addAction(action);
}
Privilege::Privilege(const ResourcePattern& resource, const ActionSet& actions)
    : _resource(resource), _actions(actions) {}

void Privilege::addActions(const ActionSet& actionsToAdd) {
    _actions.addAllActionsFromSet(actionsToAdd);
}

void Privilege::removeActions(const ActionSet& actionsToRemove) {
    _actions.removeAllActionsFromSet(actionsToRemove);
}

bool Privilege::includesAction(const ActionType& action) const {
    return _actions.contains(action);
}

bool Privilege::includesActions(const ActionSet& actions) const {
    return _actions.isSupersetOf(actions);
}

BSONObj Privilege::toBSON() const {
    ParsedPrivilege pp;
    std::string errmsg;
    invariant(ParsedPrivilege::privilegeToParsedPrivilege(*this, &pp, &errmsg));
    return pp.toBSON();
}

}  // namespace mongo