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// security.cpp
/**
* Copyright (C) 2009 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/>.
*/
#include "pch.h"
#include "security.h"
#include "security_common.h"
#include "instance.h"
#include "client.h"
#include "curop-inl.h"
#include "db.h"
#include "dbhelpers.h"
// this is the _mongod only_ implementation of security.h
namespace mongo {
bool AuthenticationInfo::_warned = false;
void AuthenticationInfo::setTemporaryAuthorization( BSONObj& obj ) {
fassert( 16232, !_usingTempAuth );
scoped_spinlock lk( _lock );
LOG(5) << "Setting temporary authorization to: " << obj << endl;
_tempAuthTable.setFromBSON( obj );
_usingTempAuth = true;
}
void AuthenticationInfo::clearTemporaryAuthorization() {
scoped_spinlock lk( _lock );
_usingTempAuth = false;
_tempAuthTable.clearAuth();
}
bool AuthenticationInfo::hasTemporaryAuthorization() {
scoped_spinlock lk( _lock );
return _usingTempAuth;
}
bool AuthenticationInfo::usingInternalUser() {
return getUser("local") == internalSecurity.user ||
getUser("admin") == internalSecurity.user;
}
string AuthenticationInfo::getUser( const string& dbname ) const {
scoped_spinlock lk(_lock);
return _authTable.getAuthForDb( dbname ).user;
}
bool AuthenticationInfo::_isAuthorizedSpecialChecks( const string& dbname ) const {
if ( cc().isGod() )
return true;
return _isLocalHostAndLocalHostIsAuthorizedForAll;
}
void AuthenticationInfo::setIsALocalHostConnectionWithSpecialAuthPowers() {
verify(!_isLocalHost);
_isLocalHost = true;
_isLocalHostAndLocalHostIsAuthorizedForAll = true;
_checkLocalHostSpecialAdmin();
}
bool AuthenticationInfo::isSpecialLocalhostAdmin() const {
return _isLocalHostAndLocalHostIsAuthorizedForAll;
}
void AuthenticationInfo::_checkLocalHostSpecialAdmin() {
if ( ! _isLocalHost )
return;
if ( ! _isLocalHostAndLocalHostIsAuthorizedForAll )
return;
if ( ! noauth ) {
Client::GodScope gs;
Client::ReadContext ctx("admin.system.users");
BSONObj result;
if( Helpers::getSingleton("admin.system.users", result) ) {
_isLocalHostAndLocalHostIsAuthorizedForAll = false;
}
else if ( ! _warned ) {
// you could get a few of these in a race, but that's ok
_warned = true;
log() << "note: no users configured in admin.system.users, allowing localhost access" << endl;
}
}
}
void AuthenticationInfo::startRequest() {
if ( ! Lock::isLocked() ) {
_checkLocalHostSpecialAdmin();
}
}
AuthenticationInfo::TemporaryAuthReleaser::TemporaryAuthReleaser ( AuthenticationInfo* ai ) :
_ai (ai), _hadTempAuthFromStart( ai->hasTemporaryAuthorization() ) {}
AuthenticationInfo::TemporaryAuthReleaser::~TemporaryAuthReleaser() {
// Some commands can run other commands using the DBDirectClient, which leads to the
// temporary auth already being set when the inner command runs. If that's the case, we
// shouldn't clear the temporary auth set by a command higher up in the call stack.
if ( !_hadTempAuthFromStart ) {
_ai->clearTemporaryAuthorization();
}
}
bool CmdAuthenticate::getUserObj(const string& dbname, const string& user, BSONObj& userObj, string& pwd) {
if (user == internalSecurity.user) {
uassert(15889, "key file must be used to log in with internal user", cmdLine.keyFile);
pwd = internalSecurity.pwd;
}
else {
string systemUsers = dbname + ".system.users";
{
Client::ReadContext ctx( systemUsers , dbpath, false );
BSONObjBuilder b;
b << "user" << user;
BSONObj query = b.done();
if( !Helpers::findOne(systemUsers.c_str(), query, userObj) ) {
log() << "auth: couldn't find user " << user << ", " << systemUsers << endl;
return false;
}
}
pwd = userObj.getStringField("pwd");
}
return true;
}
bool CmdLogout::run(const string& dbname , BSONObj& cmdObj, int, string& errmsg, BSONObjBuilder& result, bool fromRepl) {
AuthenticationInfo *ai = cc().getAuthenticationInfo();
ai->logout(dbname);
return true;
}
} // namespace mongo
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