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/**
* Copyright (C) 2021-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/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/dbdirectclient.h"
#include "mongo/db/s/rename_collection_participant_service.h"
#include "mongo/db/s/sharded_rename_collection_gen.h"
#include "mongo/db/s/sharding_state.h"
#include "mongo/db/transaction/transaction_participant.h"
#include "mongo/db/write_concern.h"
#include "mongo/logv2/log.h"
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kSharding
namespace mongo {
namespace {
class ShardsvrRenameCollectionParticipantCommand final
: public TypedCommand<ShardsvrRenameCollectionParticipantCommand> {
public:
using Request = ShardsvrRenameCollectionParticipant;
bool adminOnly() const override {
return false;
}
bool skipApiVersionCheck() const override {
// Internal command (server to server).
return true;
}
std::string help() const override {
return "Internal command. Do not call directly. Locally renames a collection.";
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
bool supportsRetryableWrite() const final {
return true;
}
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
void typedRun(OperationContext* opCtx) {
CommandHelpers::uassertCommandRunWithMajority(Request::kCommandName,
opCtx->getWriteConcern());
const auto txnParticipant = TransactionParticipant::get(opCtx);
uassert(6077302,
str::stream() << Request::kCommandName << " must be run as a retryable write",
txnParticipant);
auto const shardingState = ShardingState::get(opCtx);
uassertStatusOK(shardingState->canAcceptShardedCommands());
auto const& req = request();
const NamespaceString& fromNss = ns();
RenameCollectionParticipantDocument participantDoc(
fromNss, ForwardableOperationMetadata(opCtx), req.getSourceUUID());
participantDoc.setTargetUUID(req.getTargetUUID());
participantDoc.setRenameCollectionRequest(req.getRenameCollectionRequest());
const auto service = RenameCollectionParticipantService::getService(opCtx);
const auto participantDocBSON = participantDoc.toBSON();
const auto renameCollectionParticipant =
RenameParticipantInstance::getOrCreate(opCtx, service, participantDocBSON);
bool hasSameOptions = renameCollectionParticipant->hasSameOptions(participantDocBSON);
uassert(ErrorCodes::InvalidOptions,
str::stream() << "Another rename participant for namespace " << fromNss
<< "is instantiated with different parameters: `"
<< renameCollectionParticipant->doc() << "` vs `"
<< participantDocBSON << "`",
hasSameOptions);
renameCollectionParticipant->getBlockCRUDAndRenameCompletionFuture().get(opCtx);
// Since no write that generated a retryable write oplog entry with this sessionId and
// txnNumber happened, we need to make a dummy write so that the session gets durably
// persisted on the oplog. This must be the last operation done on this command.
DBDirectClient client(opCtx);
client.update(NamespaceString::kServerConfigurationNamespace,
BSON("_id" << Request::kCommandName),
BSON("$inc" << BSON("count" << 1)),
true /* upsert */,
false /* multi */);
}
private:
NamespaceString ns() const override {
return request().getNamespace();
}
bool supportsWriteConcern() const override {
return true;
}
void doCheckAuthorization(OperationContext* opCtx) const override {
uassert(ErrorCodes::Unauthorized,
"Unauthorized",
AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::internal));
}
};
} shardsvrRenameCollectionParticipantCommand;
class ShardsvrRenameCollectionUnblockParticipantCommand final
: public TypedCommand<ShardsvrRenameCollectionUnblockParticipantCommand> {
public:
using Request = ShardsvrRenameCollectionUnblockParticipant;
bool adminOnly() const override {
return false;
}
bool skipApiVersionCheck() const override {
// Internal command (server to server).
return true;
}
std::string help() const override {
return "Internal command. Do not call directly. Releases the critical section of source "
"and target collections.";
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
bool supportsRetryableWrite() const final {
return true;
}
class Invocation final : public InvocationBase {
public:
using InvocationBase::InvocationBase;
void typedRun(OperationContext* opCtx) {
CommandHelpers::uassertCommandRunWithMajority(Request::kCommandName,
opCtx->getWriteConcern());
const auto txnParticipant = TransactionParticipant::get(opCtx);
uassert(6077303,
str::stream() << Request::kCommandName << " must be run as a retryable write",
txnParticipant);
auto const shardingState = ShardingState::get(opCtx);
uassertStatusOK(shardingState->canAcceptShardedCommands());
const NamespaceString& fromNss = ns();
const auto& req = request();
const auto service = RenameCollectionParticipantService::getService(opCtx);
const auto id = BSON("_id" << fromNss.ns());
const auto optRenameCollectionParticipant =
RenameParticipantInstance::lookup(opCtx, service, id);
if (optRenameCollectionParticipant) {
uassert(ErrorCodes::CommandFailed,
"Provided UUID does not match",
optRenameCollectionParticipant.value()->sourceUUID() ==
req.getSourceUUID());
optRenameCollectionParticipant.value()->getUnblockCrudFuture().get(opCtx);
}
// Since no write that generated a retryable write oplog entry with this sessionId
// and txnNumber happened, we need to make a dummy write so that the session gets
// durably persisted on the oplog. This must be the last operation done on this
// command.
DBDirectClient client(opCtx);
client.update(NamespaceString::kServerConfigurationNamespace,
BSON("_id" << Request::kCommandName),
BSON("$inc" << BSON("count" << 1)),
true /* upsert */,
false /* multi */);
}
private:
NamespaceString ns() const override {
return request().getNamespace();
}
bool supportsWriteConcern() const override {
return true;
}
void doCheckAuthorization(OperationContext* opCtx) const override {
uassert(ErrorCodes::Unauthorized,
"Unauthorized",
AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::internal));
}
};
} shardsvrRenameCollectionUnblockParticipantCommand;
} // namespace
} // namespace mongo
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