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Rename Core to Base (Closes #3733).

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Vladimir Golovnev (Glassez) 2015-09-25 11:10:05 +03:00
parent 29b0200f62
commit 9db93e5d8f
156 changed files with 303 additions and 302 deletions
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90
src/base/net/reverseresolution.cpp Normal file
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/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2006 Christophe Dumez
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), 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.
*
* Contact : chris@qbittorrent.org
*/
#include <QDebug>
#include <QHostInfo>
#include <QString>
#include <boost/version.hpp>
#include <boost/asio/ip/tcp.hpp>
#include "reverseresolution.h"
const int CACHE_SIZE = 500;
using namespace Net;
static inline bool isUsefulHostName(const QString &hostname, const QString &ip)
{
return (!hostname.isEmpty() && hostname != ip);
}
ReverseResolution::ReverseResolution(QObject *parent)
: QObject(parent)
{
m_cache.setMaxCost(CACHE_SIZE);
}
ReverseResolution::~ReverseResolution()
{
qDebug("Deleting host name resolver...");
}
void ReverseResolution::resolve(const QString &ip)
{
if (m_cache.contains(ip)) {
const QString &hostname = *m_cache.object(ip);
qDebug() << "Resolved host name using cache: " << ip << " -> " << hostname;
if (isUsefulHostName(hostname, ip))
emit ipResolved(ip, hostname);
}
else {
// Actually resolve the ip
m_lookups.insert(QHostInfo::lookupHost(ip, this, SLOT(hostResolved(QHostInfo))), ip);
}
}
void ReverseResolution::hostResolved(const QHostInfo &host)
{
const QString &ip = m_lookups.take(host.lookupId());
Q_ASSERT(!ip.isNull());
if (host.error() != QHostInfo::NoError) {
qDebug() << "DNS Reverse resolution error: " << host.errorString();
return;
}
const QString &hostname = host.hostName();
qDebug() << Q_FUNC_INFO << ip << QString("->") << hostname;
m_cache.insert(ip, new QString(hostname));
if (isUsefulHostName(hostname, ip))
emit ipResolved(ip, hostname);
}