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Full-fledged query buffers

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Store query buffers per query the same way it's done for channels.

This allows clients to implement persistent query buffers. Queries
remain open across clients and sessions until a client explicitly
sends a command to clear a (closed) query buffer.

A new config option AutoClearQueryBuffer that default to false
ensures behavioral backwards compatibility, and another config
MaxQueries protects from OOM eg. due to PM attacks.
This commit is contained in:
J-P Nurmi
2014-07-20 20:08:16 +02:00
parent b1b3888231
commit 14a534c953
12 changed files with 360 additions and 81 deletions
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61
src/Query.cpp Normal file
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/*
* Copyright (C) 2004-2014 ZNC, see the NOTICE file for details.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <znc/Query.h>
#include <znc/User.h>
#include <znc/IRCNetwork.h>
using std::vector;
CQuery::CQuery(const CString& sName, CIRCNetwork* pNetwork) {
m_sName = sName;
m_pNetwork = pNetwork;
SetBufferCount(m_pNetwork->GetUser()->GetBufferCount(), true);
}
CQuery::~CQuery() {
}
void CQuery::SendBuffer(CClient* pClient) {
SendBuffer(pClient, m_Buffer);
}
void CQuery::SendBuffer(CClient* pClient, const CBuffer& Buffer) {
if (m_pNetwork && m_pNetwork->IsUserAttached()) {
// Based on CChan::SendBuffer()
if (!Buffer.IsEmpty()) {
MCString msParams;
msParams["target"] = m_pNetwork->GetIRCNick().GetNick();
const vector<CClient*> & vClients = m_pNetwork->GetClients();
for (size_t uClient = 0; uClient < vClients.size(); ++uClient) {
CClient * pUseClient = (pClient ? pClient : vClients[uClient]);
size_t uSize = Buffer.Size();
for (size_t uIdx = 0; uIdx < uSize; uIdx++) {
CString sLine = Buffer.GetLine(uIdx, *pUseClient, msParams);
bool bContinue = false;
NETWORKMODULECALL(OnPrivBufferPlayLine(*pUseClient, sLine), m_pNetwork->GetUser(), m_pNetwork, NULL, &bContinue);
if (bContinue) continue;
m_pNetwork->PutUser(sLine, pUseClient);
}
if (pClient)
break;
}
}
}
}