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/**
* Copyright (C) 2022-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 "mongo/base/status_with.h"
#include "mongo/bson/util/bson_extract.h"
#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/resource_pattern.h"
#include "mongo/db/catalog/document_validation.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/update_metrics.h"
#include "mongo/db/fle_crud.h"
#include "mongo/db/internal_transactions_feature_flag_gen.h"
#include "mongo/db/ops/write_ops_gen.h"
#include "mongo/db/query/collation/collator_factory_interface.h"
#include "mongo/db/storage/duplicate_key_error_info.h"
#include "mongo/db/transaction/transaction_api.h"
#include "mongo/executor/task_executor_pool.h"
#include "mongo/logv2/log.h"
#include "mongo/rpc/get_status_from_command_result.h"
#include "mongo/s/balancer_configuration.h"
#include "mongo/s/catalog_cache.h"
#include "mongo/s/client/shard_registry.h"
#include "mongo/s/cluster_commands_helpers.h"
#include "mongo/s/cluster_ddl.h"
#include "mongo/s/commands/cluster_explain.h"
#include "mongo/s/commands/document_shard_key_update_util.h"
#include "mongo/s/commands/strategy.h"
#include "mongo/s/grid.h"
#include "mongo/s/multi_statement_transaction_requests_sender.h"
#include "mongo/s/query_analysis_sampler_util.h"
#include "mongo/s/request_types/cluster_commands_without_shard_key_gen.h"
#include "mongo/s/session_catalog_router.h"
#include "mongo/s/shard_key_pattern_query_util.h"
#include "mongo/s/stale_exception.h"
#include "mongo/s/transaction_router.h"
#include "mongo/s/transaction_router_resource_yielder.h"
#include "mongo/s/would_change_owning_shard_exception.h"
#include "mongo/s/write_ops/write_without_shard_key_util.h"
#include "mongo/util/timer.h"
namespace mongo {
class FindAndModifyCmd : public BasicCommand {
public:
FindAndModifyCmd()
: BasicCommand("findAndModify", "findandmodify"), _updateMetrics{"findAndModify"} {}
const std::set<std::string>& apiVersions() const override {
return kApiVersions1;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
ReadWriteType getReadWriteType() const override {
return ReadWriteType::kWrite;
}
bool adminOnly() const override {
return false;
}
bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
ReadConcernSupportResult supportsReadConcern(const BSONObj& cmdObj,
repl::ReadConcernLevel level,
bool isImplicitDefault) const override {
return {{level != repl::ReadConcernLevel::kLocalReadConcern &&
level != repl::ReadConcernLevel::kSnapshotReadConcern,
{ErrorCodes::InvalidOptions, "read concern not supported"}},
{{ErrorCodes::InvalidOptions, "default read concern not permitted"}}};
}
Status checkAuthForOperation(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj) const override;
Status explain(OperationContext* opCtx,
const OpMsgRequest& request,
ExplainOptions::Verbosity verbosity,
rpc::ReplyBuilderInterface* result) const override;
bool allowedInTransactions() const final {
return true;
}
bool supportsRetryableWrite() const final {
return true;
}
bool run(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj,
BSONObjBuilder& result) override;
/**
* Changes the shard key for the document if the response object contains a
* WouldChangeOwningShard error. If the original command was sent as a retryable write, starts a
* transaction on the same session and txnNum, deletes the original document, inserts the new
* one, and commits the transaction. If the original command is part of a transaction, deletes
* the original document and inserts the new one.
*/
static void handleWouldChangeOwningShardError(OperationContext* opCtx,
const ShardId& shardId,
const NamespaceString& nss,
const BSONObj& cmdObj,
Status responseStatus,
BSONObjBuilder* result);
private:
static bool getCrudProcessedFromCmd(const BSONObj& cmdObj);
// Catches errors in the given response, and reruns the command if necessary. Uses the given
// response to construct the findAndModify command result passed to the client.
static void _constructResult(OperationContext* opCtx,
const ShardId& shardId,
const boost::optional<ShardVersion>& shardVersion,
const boost::optional<DatabaseVersion>& dbVersion,
const NamespaceString& nss,
const BSONObj& cmdObj,
const Status& responseStatus,
const BSONObj& response,
BSONObjBuilder* result);
// Two-phase protocol to run a findAndModify command without a shard key or _id.
static void _runCommandWithoutShardKey(
OperationContext* opCtx,
const NamespaceString& nss,
const BSONObj& cmdObj,
bool isExplain,
boost::optional<bool> allowShardKeyUpdatesWithoutFullShardKeyInQuery,
BSONObjBuilder* result);
// Command invocation to be used if a shard key is specified or the collection is unsharded.
static void _runCommand(OperationContext* opCtx,
const ShardId& shardId,
const boost::optional<ShardVersion>& shardVersion,
const boost::optional<DatabaseVersion>& dbVersion,
const NamespaceString& nss,
const BSONObj& cmdObj,
bool isExplain,
boost::optional<bool> allowShardKeyUpdatesWithoutFullShardKeyInQuery,
BSONObjBuilder* result);
// TODO SERVER-67429: Remove this function.
static void _handleWouldChangeOwningShardErrorRetryableWriteLegacy(
OperationContext* opCtx,
const ShardId& shardId,
const boost::optional<ShardVersion>& shardVersion,
const boost::optional<DatabaseVersion>& dbVersion,
const NamespaceString& nss,
const BSONObj& cmdObj,
BSONObjBuilder* result);
// Update related command execution metrics.
UpdateMetrics _updateMetrics;
};
} // namespace mongo
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