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/**
* Copyright (C) 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/commands/rename_collection.h"
#include <string>
#include <vector>
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/client_basic.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/namespace_string.h"
namespace mongo {
namespace rename_collection {
Status checkAuthForRenameCollectionCommand(ClientBasic* client,
const std::string& dbname,
const BSONObj& cmdObj) {
NamespaceString sourceNS = NamespaceString(cmdObj.getStringField("renameCollection"));
NamespaceString targetNS = NamespaceString(cmdObj.getStringField("to"));
bool dropTarget = cmdObj["dropTarget"].trueValue();
if (sourceNS.db() == targetNS.db() && !sourceNS.isSystem() && !targetNS.isSystem()) {
// If renaming within the same database, then if you have renameCollectionSameDB and
// either can read both of source and dest collections or *can't* read either of source
// or dest collection, then you get can do the rename, even without insert on the
// destination collection.
bool canRename = AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(sourceNS.db()), ActionType::renameCollectionSameDB);
bool canDropTargetIfNeeded = true;
if (dropTarget) {
canDropTargetIfNeeded =
AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(targetNS), ActionType::dropCollection);
}
bool canReadSrc = AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(sourceNS), ActionType::find);
bool canReadDest = AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(targetNS), ActionType::find);
if (canRename && canDropTargetIfNeeded && (canReadSrc || !canReadDest)) {
return Status::OK();
}
}
// Check privileges on source collection
ActionSet actions;
actions.addAction(ActionType::find);
actions.addAction(ActionType::dropCollection);
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(sourceNS), actions)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
// Check privileges on dest collection
actions.removeAllActions();
actions.addAction(ActionType::insert);
actions.addAction(ActionType::createIndex);
if (dropTarget) {
actions.addAction(ActionType::dropCollection);
}
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(targetNS), actions)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
} // namespace rename_collection
} // namespace mongo
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