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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.
*/
#include "mongo/platform/basic.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.h"
#include "mongo/db/commands.h"
#include "mongo/s/catalog/catalog_cache.h"
#include "mongo/s/chunk_manager.h"
#include "mongo/s/config.h"
#include "mongo/s/grid.h"
namespace mongo {
using std::shared_ptr;
namespace {
class GetShardVersion : public Command {
public:
GetShardVersion() : Command("getShardVersion", false, "getshardversion") {}
virtual bool slaveOk() const {
return true;
}
virtual bool adminOnly() const {
return true;
}
virtual void help(std::stringstream& help) const {
help << " example: { getShardVersion : 'alleyinsider.foo' } ";
}
virtual Status checkAuthForCommand(ClientBasic* client,
const std::string& dbname,
const BSONObj& cmdObj) {
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(NamespaceString(parseNs(dbname, cmdObj))),
ActionType::getShardVersion)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
virtual std::string parseNs(const std::string& dbname, const BSONObj& cmdObj) const {
return parseNsFullyQualified(dbname, cmdObj);
}
virtual bool run(OperationContext* txn,
const std::string& dbname,
BSONObj& cmdObj,
int options,
std::string& errmsg,
BSONObjBuilder& result) {
const NamespaceString nss(parseNs(dbname, cmdObj));
if (nss.size() == 0) {
return appendCommandStatus(
result, Status(ErrorCodes::InvalidNamespace, "no namespace specified"));
}
auto status = grid.catalogCache()->getDatabase(txn, nss.db().toString());
if (!status.isOK()) {
return appendCommandStatus(result, status.getStatus());
}
std::shared_ptr<DBConfig> config = status.getValue();
if (!config->isSharded(nss.ns())) {
return appendCommandStatus(
result,
Status(ErrorCodes::NamespaceNotSharded, "ns [" + nss.ns() + " is not sharded."));
}
ChunkManagerPtr cm = config->getChunkManagerIfExists(txn, nss.ns());
if (!cm) {
errmsg = "no chunk manager?";
return false;
}
cm->_printChunks();
cm->getVersion().addToBSON(result, "version");
return true;
}
} getShardVersionCmd;
} // namespace
} // namespace mongo
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