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/**
* Copyright (C) 2008 10gen 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::kAccessControl
#include "mongo/platform/basic.h"
#include "mongo/db/commands/copydb_start_commands.h"
#include "mongo/base/status.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/client/dbclientinterface.h"
#include "mongo/client/sasl_client_authenticate.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/resource_pattern.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/client.h"
#include "mongo/db/cloner.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/copydb.h"
#include "mongo/db/jsobj.h"
#include "mongo/util/log.h"
namespace mongo {
using std::string;
using std::stringstream;
namespace {
const auto authConnection = Client::declareDecoration<std::unique_ptr<DBClientBase>>();
} // namespace
std::unique_ptr<DBClientBase>& CopyDbAuthConnection::forClient(Client* client) {
return authConnection(client);
}
/* Usage:
* admindb.$cmd.findOne( { copydbgetnonce: 1, fromhost: <connection string> } );
*
* Run against the mongod that is the intended target for the "copydb" command. Used to get a
* nonce from the source of a "copydb" operation for authentication purposes. See the
* description of the "copydb" command below.
*/
class CmdCopyDbGetNonce : public Command {
public:
CmdCopyDbGetNonce() : Command("copydbgetnonce") {}
virtual bool adminOnly() const {
return true;
}
virtual bool slaveOk() const {
return false;
}
virtual bool isWriteCommandForConfigServer() const {
return false;
}
virtual void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) {
// No auth required
}
virtual void help(stringstream& help) const {
help << "get a nonce for subsequent copy db request from secure server\n";
help << "usage: {copydbgetnonce: 1, fromhost: <hostname>}";
}
virtual bool run(OperationContext* txn,
const string&,
BSONObj& cmdObj,
int,
string& errmsg,
BSONObjBuilder& result) {
string fromhost = cmdObj.getStringField("fromhost");
if (fromhost.empty()) {
/* copy from self */
stringstream ss;
ss << "localhost:" << serverGlobalParams.port;
fromhost = ss.str();
}
const ConnectionString cs(uassertStatusOK(ConnectionString::parse(fromhost)));
auto& authConn = CopyDbAuthConnection::forClient(txn->getClient());
authConn.reset(cs.connect(errmsg));
if (!authConn) {
return false;
}
BSONObj ret;
if (!authConn->runCommand("admin", BSON("getnonce" << 1), ret)) {
errmsg = "couldn't get nonce " + ret.toString();
authConn.reset();
return false;
}
result.appendElements(ret);
return true;
}
} cmdCopyDBGetNonce;
/* Usage:
* admindb.$cmd.findOne( { copydbsaslstart: 1,
* fromhost: <connection string>,
* mechanism: <String>,
* payload: <BinaryOrString> } );
*
* Run against the mongod that is the intended target for the "copydb" command. Used to
* initialize a SASL auth session for a "copydb" operation for authentication purposes.
*/
class CmdCopyDbSaslStart : public Command {
public:
CmdCopyDbSaslStart() : Command("copydbsaslstart") {}
virtual bool adminOnly() const {
return true;
}
virtual bool slaveOk() const {
return false;
}
virtual bool isWriteCommandForConfigServer() const {
return false;
}
virtual Status checkAuthForCommand(ClientBasic* client,
const std::string& dbname,
const BSONObj& cmdObj) {
// No auth required
return Status::OK();
}
virtual void help(stringstream& help) const {
help << "Initialize a SASL auth session for subsequent copy db request "
"from secure server\n";
}
virtual bool run(OperationContext* txn,
const string&,
BSONObj& cmdObj,
int,
string& errmsg,
BSONObjBuilder& result) {
const string fromDb = cmdObj.getStringField("fromdb");
string fromHost = cmdObj.getStringField("fromhost");
if (fromHost.empty()) {
/* copy from self */
stringstream ss;
ss << "localhost:" << serverGlobalParams.port;
fromHost = ss.str();
}
const ConnectionString cs(uassertStatusOK(ConnectionString::parse(fromHost)));
BSONElement mechanismElement;
Status status = bsonExtractField(cmdObj, saslCommandMechanismFieldName, &mechanismElement);
if (!status.isOK()) {
return appendCommandStatus(result, status);
}
BSONElement payloadElement;
status = bsonExtractField(cmdObj, saslCommandPayloadFieldName, &payloadElement);
if (!status.isOK()) {
log() << "Failed to extract payload: " << status;
return false;
}
auto& authConn = CopyDbAuthConnection::forClient(txn->getClient());
authConn.reset(cs.connect(errmsg));
if (!authConn.get()) {
return false;
}
BSONObj ret;
if (!authConn->runCommand(
fromDb, BSON("saslStart" << 1 << mechanismElement << payloadElement), ret)) {
authConn.reset();
return appendCommandStatus(result, Command::getStatusFromCommandResult(ret));
}
result.appendElements(ret);
return true;
}
} cmdCopyDBSaslStart;
} // namespace mongo
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