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/**
* Copyright (C) 2018-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.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/commands/write_commands/write_commands_common.h"
#include <algorithm>
#include <string>
#include <vector>
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/catalog/document_validation.h"
#include "mongo/db/ops/write_ops.h"
#include "mongo/stdx/memory.h"
#include "mongo/util/assert_util.h"
namespace mongo {
namespace auth {
namespace {
/**
* Extracts the namespace being indexed from a raw BSON write command.
* TODO: Remove when we have parsing hooked before authorization.
*/
NamespaceString _getIndexedNss(const std::vector<BSONObj>& documents) {
uassert(ErrorCodes::FailedToParse, "index write batch is empty", !documents.empty());
std::string ns = documents.front()["ns"].str();
uassert(ErrorCodes::FailedToParse,
"index write batch contains an invalid index descriptor",
!ns.empty());
uassert(ErrorCodes::FailedToParse,
"index write batches may only contain a single index descriptor",
documents.size() == 1);
return NamespaceString(std::move(ns));
}
void fillPrivileges(const write_ops::Insert& op,
std::vector<Privilege>* privileges,
ActionSet* actions) {
actions->addAction(ActionType::insert);
}
void fillPrivileges(const write_ops::Update& op,
std::vector<Privilege>* privileges,
ActionSet* actions) {
actions->addAction(ActionType::update);
// Upsert also requires insert privs
const auto& updates = op.getUpdates();
if (std::any_of(updates.begin(), updates.end(), [](auto&& x) { return x.getUpsert(); })) {
actions->addAction(ActionType::insert);
}
}
void fillPrivileges(const write_ops::Delete& op,
std::vector<Privilege>* privileges,
ActionSet* actions) {
actions->addAction(ActionType::remove);
}
template <typename Op>
void checkAuthorizationImpl(AuthorizationSession* authzSession,
bool withDocumentValidationBypass,
const Op& op) {
std::vector<Privilege> privileges;
ActionSet actions;
if (withDocumentValidationBypass) {
actions.addAction(ActionType::bypassDocumentValidation);
}
fillPrivileges(op, &privileges, &actions);
if (!actions.empty()) {
privileges.push_back(
Privilege(ResourcePattern::forExactNamespace(op.getNamespace()), actions));
}
uassert(ErrorCodes::Unauthorized,
"unauthorized",
authzSession->isAuthorizedForPrivileges(privileges));
}
} // namespace
void checkAuthForInsertCommand(AuthorizationSession* authzSession,
bool withDocumentValidationBypass,
const write_ops::Insert& op) {
checkAuthorizationImpl(authzSession, withDocumentValidationBypass, op);
}
void checkAuthForUpdateCommand(AuthorizationSession* authzSession,
bool withDocumentValidationBypass,
const write_ops::Update& op) {
checkAuthorizationImpl(authzSession, withDocumentValidationBypass, op);
}
void checkAuthForDeleteCommand(AuthorizationSession* authzSession,
bool withDocumentValidationBypass,
const write_ops::Delete& op) {
checkAuthorizationImpl(authzSession, withDocumentValidationBypass, op);
}
} // namespace auth
} // namespace mongo
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