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* PokerTH - The open source texas holdem engine *
* Copyright (C) 2006-2012 Felix Hammer, Florian Thauer, Lothar May *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Affero General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* 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/>. *
* *
* *
* Additional permission under GNU AGPL version 3 section 7 *
* *
* If you modify this program, or any covered work, by linking or *
* combining it with the OpenSSL project's OpenSSL library (or a *
* modified version of that library), containing parts covered by the *
* terms of the OpenSSL or SSLeay licenses, the authors of PokerTH *
* (Felix Hammer, Florian Thauer, Lothar May) grant you additional *
* permission to convey the resulting work. *
* Corresponding Source for a non-source form of such a combination *
* shall include the source code for the parts of OpenSSL used as well *
* as that of the covered work. *
*****************************************************************************/
#include <net/validation/authmessagevalidator.h>
#include <net/validation/validationhelper.h>
using namespace std;
AuthMessageValidator::AuthMessageValidator()
{
m_validationMap.insert(make_pair(AuthMessage_AuthMessageType_Type_AuthClientRequestMessage, ValidateAuthClientRequestMessage));
m_validationMap.insert(make_pair(AuthMessage_AuthMessageType_Type_AuthServerChallengeMessage, ValidateAuthServerChallengeMessage));
m_validationMap.insert(make_pair(AuthMessage_AuthMessageType_Type_AuthClientResponseMessage, ValidateAuthClientResponseMessage));
m_validationMap.insert(make_pair(AuthMessage_AuthMessageType_Type_AuthServerVerificationMessage, ValidateAuthServerVerificationMessage));
}
bool
AuthMessageValidator::IsValidMessage(const AuthMessage &msg) const
{
// Default: Invalid packet.
bool retVal = false;
ValidateFunctorMap::const_iterator pos = m_validationMap.find(msg.messagetype());
if (pos != m_validationMap.end()) {
// Call validation functor.
retVal = pos->second(msg);
}
return retVal;
}
bool
AuthMessageValidator::ValidateAuthClientRequestMessage(const AuthMessage &msg)
{
bool retVal = false;
if (msg.has_authclientrequestmessage()) {
const AuthClientRequestMessage &request = msg.authclientrequestmessage();
if (VALIDATE_IS_UINT16(request.requestedversion().majorversion())
&& VALIDATE_IS_UINT16(request.requestedversion().minorversion())
&& (!request.has_mylastsessionid() || request.mylastsessionid().size() == 16)
&& (!request.has_authserverpassword() || VALIDATE_STRING_SIZE(request.authserverpassword(), 1, 64))
&& (!request.has_nickname() || VALIDATE_STRING_SIZE(request.nickname(), 1, 64))
&& (!request.has_clientuserdata() || VALIDATE_STRING_SIZE(request.clientuserdata(), 1, 256))
&& (!request.has_avatarhash() || request.avatarhash().size() == 16)) {
retVal = true;
}
}
return retVal;
}
bool
AuthMessageValidator::ValidateAuthServerChallengeMessage(const AuthMessage &msg)
{
bool retVal = false;
if (msg.has_authserverchallengemessage()) {
const AuthServerChallengeMessage &challenge = msg.authserverchallengemessage();
if (VALIDATE_STRING_SIZE(challenge.serverchallenge(), 1, 256)) {
retVal = true;
}
}
return retVal;
}
bool
AuthMessageValidator::ValidateAuthClientResponseMessage(const AuthMessage &msg)
{
bool retVal = false;
if (msg.has_authclientresponsemessage()) {
const AuthClientResponseMessage &response = msg.authclientresponsemessage();
if (VALIDATE_STRING_SIZE(response.clientresponse(), 1, 256)) {
retVal = true;
}
}
return retVal;
}
bool
AuthMessageValidator::ValidateAuthServerVerificationMessage(const AuthMessage &msg)
{
bool retVal = false;
if (msg.has_authserververificationmessage()) {
const AuthServerVerificationMessage &verification = msg.authserververificationmessage();
if (VALIDATE_STRING_SIZE(verification.serververification(), 1, 256)) {
retVal = true;
}
}
return retVal;
}
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