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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.
*/
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kCommand
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/internal_transactions_test_command_gen.h"
#include "mongo/db/query/find_command_gen.h"
#include "mongo/db/transaction_api.h"
#include "mongo/logv2/log.h"
#include "mongo/s/grid.h"
#include "mongo/stdx/future.h"
namespace mongo {
namespace {
template <typename Impl>
class InternalTransactionsTestCommandBase : public TypedCommand<Impl> {
public:
using Request = TestInternalTransactions;
class Invocation final : public TypedCommand<Impl>::InvocationBase {
public:
using Base = typename TypedCommand<Impl>::InvocationBase;
using Base::Base;
TestInternalTransactionsCommandReply typedRun(OperationContext* opCtx) {
struct SharedBlock {
SharedBlock(std::vector<TestInternalTransactionsCommandInfo> commandInfos_)
: commandInfos(commandInfos_) {}
std::vector<TestInternalTransactionsCommandInfo> commandInfos;
std::vector<BSONObj> responses;
};
auto sharedBlock = std::make_shared<SharedBlock>(Base::request().getCommandInfos());
const auto executor = Grid::get(opCtx)->isShardingInitialized()
? static_cast<ExecutorPtr>(Grid::get(opCtx)->getExecutorPool()->getFixedExecutor())
: static_cast<ExecutorPtr>(getTransactionExecutor());
// If internalTransactionsTestCommand is received by a mongod, it should be instantiated
// with the TransactionParticipant's resource yielder. If on a mongos, txn should be
// instantiated with the TransactionRouter's resource yielder.
auto txn = Impl::getTxn(opCtx,
std::move(executor),
Base::request().kCommandName,
Base::request().getUseClusterClient());
// Swallow errors and let clients inspect the responses array to determine success /
// failure.
(void)txn.runSyncNoThrow(
opCtx,
[sharedBlock](const txn_api::TransactionClient& txnClient, ExecutorPtr txnExec) {
// Iterate through commands and record responses for each. Return immediately if
// we encounter a response with a retriedStmtId. This field indicates that the
// command and everything following it have already been executed.
for (const auto& commandInfo : sharedBlock->commandInfos) {
const auto& dbName = commandInfo.getDbName();
const auto& command = commandInfo.getCommand();
auto assertSucceeds = commandInfo.getAssertSucceeds();
auto exhaustCursor = commandInfo.getExhaustCursor();
if (exhaustCursor == boost::optional<bool>(true)) {
// We can't call a getMore without knowing its cursor's id, so we
// use the exhaustiveFind helper to test getMores. Make an OpMsgRequest
// from the command to append $db, which FindCommandRequest expects.
auto findOpMsgRequest = OpMsgRequest::fromDBAndBody(dbName, command);
auto findCommand = FindCommandRequest::parse(
IDLParserErrorContext("FindCommandRequest", false /* apiStrict */),
findOpMsgRequest.body);
auto docs = txnClient.exhaustiveFind(findCommand).get();
BSONObjBuilder resBob;
resBob.append("docs", std::move(docs));
sharedBlock->responses.emplace_back(resBob.obj());
continue;
}
const auto res = txnClient.runCommand(dbName, command).get();
sharedBlock->responses.emplace_back(
CommandHelpers::filterCommandReplyForPassthrough(
res.removeField("recoveryToken")));
// TODO SERVER-64986: Remove assert check.
if (assertSucceeds) {
// Note this only inspects the top level ok field for non-write
// commands.
uassertStatusOK(getStatusFromWriteCommandReply(res));
}
// TODO SERVER-65048: Check if result has retriedStmtId & retriedStmtIds
// field, exit.
}
return SemiFuture<void>::makeReady();
});
return TestInternalTransactionsCommandReply(std::move(sharedBlock->responses));
};
NamespaceString ns() const override {
return NamespaceString(Base::request().getDbName(), "");
}
bool supportsWriteConcern() const override {
return false;
}
void doCheckAuthorization(OperationContext* opCtx) const override {
uassert(ErrorCodes::Unauthorized,
"Unauthorized",
AuthorizationSession::get(opCtx->getClient())
->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::internal));
}
const std::shared_ptr<ThreadPool>& getTransactionExecutor() {
static Mutex mutex =
MONGO_MAKE_LATCH("InternalTransactionsTestCommandExecutor::_mutex");
static std::shared_ptr<ThreadPool> executor;
stdx::lock_guard<Latch> lg(mutex);
if (!executor) {
ThreadPool::Options options;
options.poolName = "InternalTransaction";
options.minThreads = 0;
options.maxThreads = 4;
executor = std::make_shared<ThreadPool>(std::move(options));
executor->startup();
}
return executor;
}
};
std::string help() const override {
return "Internal command for testing internal transactions";
}
// This command can use the transaction API to run commands on different databases, so a single
// user database doesn't apply and we restrict this to only the admin database.
bool adminOnly() const override {
return true;
}
BasicCommand::AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return BasicCommand::AllowedOnSecondary::kNever;
}
};
} // namespace
} // namespace mongo
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