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248 lines
7.9 KiB
248 lines
7.9 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#include "hsTypes.h" |
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#include "plNetMsgScreener.h" |
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#include "plCreatableIndex.h" |
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#include "pnNetCommon/plNetApp.h" |
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#include "pnMessage/plNotifyMsg.h" |
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#include "pnMessage/plEnableMsg.h" |
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#include "pnMessage/plSetNetGroupIDMsg.h" |
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#include "pnInputCore/plControlEventCodes.h" |
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#include "plMessage/plCCRMsg.h" |
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#include "plMessage/plLinkToAgeMsg.h" |
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#include "plMessage/plAvatarMsg.h" |
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#include "plMessage/plInputIfaceMgrMsg.h" |
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#include "plMessage/plInputEventMsg.h" |
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#include "plMessage/plAnimCmdMsg.h" |
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#include "plMessage/plBulletMsg.h" |
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#include "plMessage/plAvCoopMsg.h" |
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#include "plMessage/plParticleUpdateMsg.h" |
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#include "pfMessage/pfKIMsg.h" |
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#include "pfMessage/plClothingMsg.h" |
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// |
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// say why the msg got rejected |
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// |
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void plNetMsgScreener::IRejectLogMsg(Int16 classIndex, const char* desc, const plNetGameMember* gm) const |
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{ |
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DebugMsg("Message %s was rejected, reason:%s, age:%s, client:%s", |
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plFactory::GetNameOfClass(classIndex), desc, IGetAgeName(), IGetSenderName(gm)); |
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} |
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// |
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// say why the msg got rejected |
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// |
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void plNetMsgScreener::IRejectLogMsg(const plMessage* msg, const char* desc, const plNetGameMember* gm) const |
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{ |
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const char* senderName = msg->GetSender() ? msg->GetSender()->GetUoid().GetObjectName() : "?"; |
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const char* rcvrName = msg->GetNumReceivers() && msg->GetReceiver(0) ? msg->GetReceiver(0)->GetUoid().GetObjectName() : "?"; |
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DebugMsg("Message %s was rejected, reason:%s, age:%s, client:%s, msgSndr:%s, msgRcvr:%s", |
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msg->ClassName(), desc, IGetAgeName(), IGetSenderName(gm), |
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senderName, rcvrName); |
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} |
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// |
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// Try to accept/reject quickly |
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// the netMsg arg has been peeked except for the stream |
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// |
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plNetMsgScreener::Answer plNetMsgScreener::IAllowMessageType(Int16 classIndex, const plNetGameMember* gm) const |
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{ |
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// Check based on baseclass |
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if (plFactory::DerivesFrom(plCCRMessage::Index(), classIndex)) |
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{ |
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ILogCCRMessage(classIndex, gm); |
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Answer ans=IIsSenderCCR(gm) ? kYes : kNo; |
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if (ans==kNo) |
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{ |
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IRejectLogMsg(classIndex, "Not a CCR", gm); |
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} |
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return ans; |
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} |
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// Check based on exact type |
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switch(classIndex) |
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{ |
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// these are wrapped in their own net msg, so the client will see them this way, but not the server |
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// that's why they check IAmClient() - this is a special case |
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case CLASS_INDEX_SCOPED(plLoadAvatarMsg): |
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case CLASS_INDEX_SCOPED(plLoadCloneMsg): |
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{ |
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Answer ans=IAmClient() ? kYes : kNo; |
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if (ans==kNo) |
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{ |
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IRejectLogMsg(classIndex, "Only seen in native form on client", gm); |
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} |
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return ans; |
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} |
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// definitely yes |
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case CLASS_INDEX_SCOPED(pfMarkerMsg): |
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case CLASS_INDEX_SCOPED(plBulletMsg): |
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case CLASS_INDEX_SCOPED(plNotifyMsg): |
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case CLASS_INDEX_SCOPED(plSetNetGroupIDMsg): |
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case CLASS_INDEX_SCOPED(plAvCoopMsg): |
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case CLASS_INDEX_SCOPED(plClothingMsg): |
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case CLASS_INDEX_SCOPED(plEnableMsg): |
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case CLASS_INDEX_SCOPED(plLinkToAgeMsg): |
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return kYes; |
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// definitely yes or no (based on whether sender is a CCR) |
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case CLASS_INDEX_SCOPED(plWarpMsg): |
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{ |
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Answer ans=IIsSenderCCR(gm) ? kYes : kNo; |
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if (ans==kNo) |
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{ |
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IRejectLogMsg(classIndex, "Not a CCR", gm); |
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} |
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return ans; |
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} |
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// conditionally yes, requires further validation of msg contents |
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case CLASS_INDEX_SCOPED(plAnimCmdMsg): |
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case CLASS_INDEX_SCOPED(pfKIMsg): |
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case CLASS_INDEX_SCOPED(plAvTaskMsg): |
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case CLASS_INDEX_SCOPED(plLinkEffectsTriggerMsg): |
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case CLASS_INDEX_SCOPED(plInputIfaceMgrMsg): |
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case CLASS_INDEX_SCOPED(plParticleKillMsg): |
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case CLASS_INDEX_SCOPED(plParticleTransferMsg): |
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case CLASS_INDEX_SCOPED(plAvatarInputStateMsg): |
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case CLASS_INDEX_SCOPED(plAvBrainGenericMsg): |
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case CLASS_INDEX_SCOPED(plMultistageModMsg): |
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return kMaybe; |
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// definitely no |
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default: |
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IRejectLogMsg(classIndex, "Illegal msg class", gm); |
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return kNo; |
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} |
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} |
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// |
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// Message may be allowed if contents or conditions are met |
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// |
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bool plNetMsgScreener::IValidateMessage(const plMessage* msg, const plNetGameMember* gm) const |
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{ |
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if (!msg) |
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return true; |
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switch(msg->ClassIndex()) |
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{ |
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// Only chat KI msgs are allowed. |
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// Admin/system-wide chat msgs are only allowed by CCRs |
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case CLASS_INDEX_SCOPED(pfKIMsg): |
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{ |
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const pfKIMsg* km = pfKIMsg::ConvertNoRef(msg); |
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if (km->GetCommand() != pfKIMsg::kHACKChatMsg) |
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{ |
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IRejectLogMsg(msg, "Non-chat KI msg", gm); |
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return false; |
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} |
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ILogChatMessage(msg, gm); |
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if (km->GetFlags() & pfKIMsg::kAdminMsg) |
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{ |
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if (!IIsSenderCCR(gm)) |
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{ |
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IRejectLogMsg(msg, "Must be a CCR to send an Admin KI msg", gm); |
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return false; |
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} |
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} |
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return true; |
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} |
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break; |
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// Allowed for local avatar |
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case CLASS_INDEX_SCOPED(plAvTaskMsg): |
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case CLASS_INDEX_SCOPED(plAvatarInputStateMsg): |
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case CLASS_INDEX_SCOPED(plAvBrainGenericMsg): |
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case CLASS_INDEX_SCOPED(plMultistageModMsg): |
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{ |
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bool ret=IIsLocalArmatureModKey(msg->GetReceiver(0), gm); |
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if (!ret) |
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{ |
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IRejectLogMsg(msg, "msg must refer to local avatar", gm); |
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} |
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return ret; |
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} |
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// Allowed for local avatar |
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case CLASS_INDEX_SCOPED(plLinkEffectsTriggerMsg): |
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{ |
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const plLinkEffectsTriggerMsg* linkMsg = plLinkEffectsTriggerMsg::ConvertNoRef(msg); |
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bool ret=IIsLocalAvatarKey(linkMsg->GetLinkKey(), gm); |
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if (!ret) |
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{ |
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IRejectLogMsg(msg, "msg must refer to local avatar", gm); |
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} |
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return ret; |
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} |
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// Allowed for local avatar |
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case CLASS_INDEX_SCOPED(plInputIfaceMgrMsg): |
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{ |
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const plInputIfaceMgrMsg* iMsg = plInputIfaceMgrMsg::ConvertNoRef(msg); |
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bool ret=IIsLocalAvatarKey(iMsg->GetAvKey(), gm); |
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if (!ret) |
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{ |
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IRejectLogMsg(msg, "msg must refer to local avatar", gm); |
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} |
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return ret; |
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} |
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break; |
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case CLASS_INDEX_SCOPED(plParticleKillMsg): |
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case CLASS_INDEX_SCOPED(plParticleTransferMsg): |
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{ |
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bool ret = IIsLocalAvatarKey(msg->GetReceiver(0), gm); |
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if (!ret) |
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{ |
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IRejectLogMsg(msg, "msg must refer to local avatar", gm); |
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} |
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return ret; |
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} |
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break; |
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case CLASS_INDEX_SCOPED(plAnimCmdMsg): |
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{ |
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const plAnimCmdMsg *animMsg = plAnimCmdMsg::ConvertNoRef(msg); |
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bool ret = (animMsg->GetNumCallbacks() == 0); |
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if (!ret) |
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{ |
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IRejectLogMsg(msg, "msg has callbacks", gm); |
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} |
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return ret; |
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} |
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break; |
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default: |
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return false; |
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} |
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} |
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