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/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kCommand
#include "mongo/platform/basic.h"
#include <set>
#include "mongo/db/audit.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/client_basic.h"
#include "mongo/db/commands.h"
#include "mongo/s/catalog/catalog_cache.h"
#include "mongo/s/catalog/catalog_manager.h"
#include "mongo/s/config.h"
#include "mongo/s/grid.h"
#include "mongo/util/log.h"
namespace mongo {
namespace {
class EnableShardingCmd : public Command {
public:
EnableShardingCmd() : Command("enableSharding", false, "enablesharding") {}
virtual bool slaveOk() const {
return true;
}
virtual bool adminOnly() const {
return true;
}
virtual bool isWriteCommandForConfigServer() const {
return false;
}
virtual void help(std::stringstream& help) const {
help << "Enable sharding for a database. "
<< "(Use 'shardcollection' command afterwards.)\n"
<< " { enablesharding : \"<dbname>\" }\n";
}
virtual Status checkAuthForCommand(ClientBasic* client,
const std::string& dbname,
const BSONObj& cmdObj) {
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(parseNs(dbname, cmdObj)),
ActionType::enableSharding)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
virtual std::string parseNs(const std::string& dbname, const BSONObj& cmdObj) const {
return cmdObj.firstElement().str();
}
virtual bool run(OperationContext* txn,
const std::string& dbname_unused,
BSONObj& cmdObj,
int options,
std::string& errmsg,
BSONObjBuilder& result) {
const std::string dbname = parseNs("", cmdObj);
if (dbname.empty() || !nsIsDbOnly(dbname)) {
errmsg = "invalid db name specified: " + dbname;
return false;
}
if (dbname == "admin" || dbname == "config" || dbname == "local") {
errmsg = "can't shard " + dbname + " database";
return false;
}
Status status = grid.catalogManager(txn)->enableSharding(txn, dbname);
if (status.isOK()) {
audit::logEnableSharding(ClientBasic::getCurrent(), dbname);
}
// Make sure to force update of any stale metadata
grid.catalogCache()->invalidate(dbname);
return appendCommandStatus(result, status);
}
} enableShardingCmd;
} // namespace
} // namespace mongo
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