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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/auth/authorization_session.h"
#include "mongo/db/catalog/capped_utils.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/op_observer/op_observer.h"
#include "mongo/db/query/find.h"
#include "mongo/db/query/internal_plans.h"
#include "mongo/db/repl/replication_coordinator.h"
#include "mongo/db/service_context.h"
namespace mongo {
namespace {
class CmdCloneCollectionAsCapped : public BasicCommand {
public:
CmdCloneCollectionAsCapped() : BasicCommand("cloneCollectionAsCapped") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
std::string help() const override {
return "{ cloneCollectionAsCapped:<fromName>, toCollection:<toName>, size:<sizeInBytes> }";
}
Status checkAuthForOperation(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj) const override {
auto* as = AuthorizationSession::get(opCtx->getClient());
if (!as->isAuthorizedForActionsOnResource(parseResourcePattern(dbName, cmdObj),
ActionType::find)) {
return {ErrorCodes::Unauthorized, "unauthorized"};
}
const auto nssElt = cmdObj["toCollection"];
uassert(ErrorCodes::TypeMismatch,
"'toCollection' must be of type String",
nssElt.type() == BSONType::String);
const NamespaceString nss(
NamespaceStringUtil::parseNamespaceFromRequest(dbName, nssElt.valueStringData()));
uassert(ErrorCodes::InvalidNamespace,
str::stream() << "Invalid target namespace: " << nss.toStringForErrorMsg(),
nss.isValid());
if (!as->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(nss),
{ActionType::insert, ActionType::createIndex, ActionType::convertToCapped})) {
return {ErrorCodes::Unauthorized, "unauthorized"};
}
return Status::OK();
}
bool run(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
const auto fromElt = cmdObj["cloneCollectionAsCapped"];
const auto toElt = cmdObj["toCollection"];
uassert(ErrorCodes::TypeMismatch,
"'cloneCollectionAsCapped' must be of type String",
fromElt.type() == BSONType::String);
uassert(ErrorCodes::TypeMismatch,
"'toCollection' must be of type String",
toElt.type() == BSONType::String);
const StringData from(fromElt.valueStringData());
const StringData to(toElt.valueStringData());
uassert(ErrorCodes::InvalidNamespace,
str::stream() << "Invalid source collection name: " << from,
NamespaceString::validCollectionName(from));
uassert(ErrorCodes::InvalidNamespace,
str::stream() << "Invalid target collection name: " << to,
NamespaceString::validCollectionName(to));
auto size = cmdObj.getField("size").safeNumberLong();
bool temp = cmdObj.getField("temp").trueValue();
uassert(ErrorCodes::InvalidOptions, "invalid command spec", size != 0);
NamespaceString fromNs(NamespaceStringUtil::parseNamespaceFromRequest(dbName, from));
NamespaceString toNs(NamespaceStringUtil::parseNamespaceFromRequest(dbName, to));
AutoGetCollection autoColl(opCtx, fromNs, MODE_X);
Lock::CollectionLock collLock(opCtx, toNs, MODE_X);
if (!repl::ReplicationCoordinator::get(opCtx)->canAcceptWritesFor(opCtx, toNs)) {
uasserted(ErrorCodes::NotWritablePrimary,
str::stream() << "Not primary while cloning collection " << from << " to "
<< to << " (as capped)");
}
Database* const db = autoColl.getDb();
if (!db) {
uasserted(ErrorCodes::NamespaceNotFound,
str::stream() << "database " << dbName.toStringForErrorMsg() << " not found");
}
cloneCollectionAsCapped(opCtx, db, fromNs, toNs, size, temp);
return true;
}
} cmdCloneCollectionAsCapped;
/**
* Converts the given collection to a capped collection w/ the specified size. This command is not
* highly used, and is not currently supported with sharded environments.
*/
class CmdConvertToCapped : public BasicCommand {
public:
CmdConvertToCapped() : BasicCommand("convertToCapped") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
bool collectsResourceConsumptionMetrics() const override {
return true;
}
std::string help() const override {
return "{ convertToCapped:<fromCollectionName>, size:<sizeInBytes> }";
}
Status checkAuthForOperation(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj) const override {
auto* as = AuthorizationSession::get(opCtx->getClient());
if (!as->isAuthorizedForActionsOnResource(parseResourcePattern(dbName, cmdObj),
ActionType::convertToCapped)) {
return {ErrorCodes::Unauthorized, "unauthorized"};
}
return Status::OK();
}
bool run(OperationContext* opCtx,
const DatabaseName& dbName,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
const NamespaceString nss(CommandHelpers::parseNsCollectionRequired(dbName, cmdObj));
auto size = cmdObj.getField("size").safeNumberLong();
uassert(ErrorCodes::InvalidOptions, "invalid command spec", size != 0);
convertToCapped(opCtx, nss, size);
return true;
}
} cmdConvertToCapped;
} // namespace
} // namespace mongo
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