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/*
* Copyright (C) 2014 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::kAccessControl
#include "mongo/platform/basic.h"
#include "mongo/db/auth/internal_user_auth.h"
#include "mongo/bson/mutable/document.h"
#include "mongo/bson/mutable/element.h"
#include "mongo/client/dbclientinterface.h"
#include "mongo/db/server_options.h"
#include "mongo/util/log.h"
namespace mongo {
namespace mmb = mongo::mutablebson;
// not guarded by the authParams mutex never changed in
// multi-threaded operation
static bool authParamsSet = false;
// Store default authentication parameters for internal authentication to cluster members,
// guarded by the authParams mutex
static BSONObj authParams;
static stdx::mutex authParamMutex;
bool isInternalAuthSet() {
return authParamsSet;
}
void setInternalUserAuthParams(const BSONObj& authParamsIn) {
if (!isInternalAuthSet()) {
authParamsSet = true;
}
stdx::lock_guard<stdx::mutex> lk(authParamMutex);
if (authParamsIn["mechanism"].String() != "SCRAM-SHA-1") {
authParams = authParamsIn.copy();
return;
}
// Create authParams for legacy MONGODB-CR authentication for 2.6/3.0 mixed
// mode if applicable.
mmb::Document fallback(authParamsIn);
fallback.root().findFirstChildNamed("mechanism").setValueString("MONGODB-CR");
mmb::Document doc(authParamsIn);
mmb::Element fallbackEl = doc.makeElementObject("fallbackParams");
fallbackEl.setValueObject(fallback.getObject());
doc.root().pushBack(fallbackEl);
authParams = doc.getObject().copy();
}
BSONObj getInternalUserAuthParamsWithFallback() {
if (!authParamsSet) {
return BSONObj();
}
stdx::lock_guard<stdx::mutex> lk(authParamMutex);
return authParams.copy();
}
BSONObj getFallbackAuthParams(BSONObj params) {
if (params["fallbackParams"].type() != Object) {
return BSONObj();
}
return params["fallbackParams"].Obj();
}
bool authenticateInternalUser(DBClientWithCommands* conn) {
if (!isInternalAuthSet()) {
if (!serverGlobalParams.quiet) {
log() << "ERROR: No authentication parameters set for internal user";
}
return false;
}
try {
conn->auth(getInternalUserAuthParamsWithFallback());
return true;
} catch(const UserException& ex) {
if (!serverGlobalParams.quiet) {
log() << "can't authenticate to " << conn->toString()
<< " as internal user, error: "<< ex.what();
}
return false;
}
}
} // namespace mongo
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