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Remove discovery classes in favour of nymea internal networ device discovery

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Simon Stürz 2021-06-07 16:49:33 +02:00 committed by Michael Zanetti
parent cb43bc0797
commit 515d8f6e42
4 changed files with 0 additions and 511 deletions
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272
discovery/discovery.cpp
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@ -1,272 +0,0 @@
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright 2013 - 2020, nymea GmbH
* Contact: contact@nymea.io
*
* This file is part of nymea.
* This project including source code and documentation is protected by
* copyright law, and remains the property of nymea GmbH. All rights, including
* reproduction, publication, editing and translation, are reserved. The use of
* this project is subject to the terms of a license agreement to be concluded
* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
* under https://nymea.io/license
*
* GNU Lesser General Public License Usage
* Alternatively, this project may be redistributed and/or modified under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; version 3. This project 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this project. If not, see <https://www.gnu.org/licenses/>.
*
* For any further details and any questions please contact us under
* contact@nymea.io or see our FAQ/Licensing Information on
* https://nymea.io/license/faq
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "discovery.h"
#include <QDebug>
#include <QXmlStreamReader>
#include <QNetworkInterface>
#include <QHostInfo>
#include <QTimer>
#include <loggingcategories.h>
NYMEA_LOGGING_CATEGORY(dcDiscovery, "Discovery")
Discovery::Discovery(QObject *parent) : QObject(parent)
{
connect(&m_timeoutTimer, &QTimer::timeout, this, &Discovery::onTimeout);
}
void Discovery::discoverHosts(int timeout)
{
if (isRunning()) {
qCWarning(dcDiscovery()) << "Discovery already running. Cannot start twice.";
return;
}
m_timeoutTimer.start(timeout * 1000);
foreach (const QString &target, getDefaultTargets()) {
QProcess *discoveryProcess = new QProcess(this);
m_discoveryProcesses.append(discoveryProcess);
connect(discoveryProcess, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(discoveryFinished(int,QProcess::ExitStatus)));
QStringList arguments;
arguments << "-oX" << "-" << "-n" << "-sn";
arguments << target;
qCDebug(dcDiscovery()) << "Scanning network:" << "nmap" << arguments.join(" ");
discoveryProcess->start(QStringLiteral("nmap"), arguments);
}
}
void Discovery::abort()
{
foreach (QProcess *discoveryProcess, m_discoveryProcesses) {
if (discoveryProcess->state() == QProcess::Running) {
qCDebug(dcDiscovery()) << "Kill running discovery process";
discoveryProcess->terminate();
discoveryProcess->waitForFinished(5000);
}
}
foreach (QProcess *p, m_pendingArpLookups.keys()) {
p->terminate();
delete p;
}
m_pendingArpLookups.clear();
m_pendingNameLookups.clear();
qDeleteAll(m_scanResults);
m_scanResults.clear();
}
bool Discovery::isRunning() const
{
return !m_discoveryProcesses.isEmpty() || !m_pendingArpLookups.isEmpty() || !m_pendingNameLookups.isEmpty();
}
void Discovery::discoveryFinished(int exitCode, QProcess::ExitStatus exitStatus)
{
QProcess *discoveryProcess = static_cast<QProcess*>(sender());
if (exitCode != 0 || exitStatus != QProcess::NormalExit) {
qCWarning(dcDiscovery()) << "Nmap error failed. Is nmap installed correctly?";
m_discoveryProcesses.removeAll(discoveryProcess);
discoveryProcess->deleteLater();
discoveryProcess = nullptr;
finishDiscovery();
return;
}
QByteArray data = discoveryProcess->readAll();
m_discoveryProcesses.removeAll(discoveryProcess);
discoveryProcess->deleteLater();
discoveryProcess = nullptr;
QXmlStreamReader reader(data);
int foundHosts = 0;
qCDebug(dcDiscovery()) << "nmap finished network discovery:";
while (!reader.atEnd() && !reader.hasError()) {
QXmlStreamReader::TokenType token = reader.readNext();
if(token == QXmlStreamReader::StartDocument)
continue;
if(token == QXmlStreamReader::StartElement && reader.name() == "host") {
bool isUp = false;
QString address;
QString macAddress;
QString vendor;
while (!reader.atEnd() && !reader.hasError() && !(token == QXmlStreamReader::EndElement && reader.name() == "host")) {
token = reader.readNext();
if (reader.name() == "address") {
QString addr = reader.attributes().value("addr").toString();
QString type = reader.attributes().value("addrtype").toString();
if (type == "ipv4" && !addr.isEmpty()) {
address = addr;
} else if (type == "mac") {
macAddress = addr;
vendor = reader.attributes().value("vendor").toString();
}
}
if (reader.name() == "status") {
QString state = reader.attributes().value("state").toString();
if (!state.isEmpty())
isUp = state == "up";
}
}
if (isUp) {
foundHosts++;
qCDebug(dcDiscovery()) << " - host:" << address;
Host *host = new Host();
host->setAddress(address);
if (!macAddress.isEmpty()) {
host->setMacAddress(macAddress);
} else {
QProcess *arpLookup = new QProcess(this);
m_pendingArpLookups.insert(arpLookup, host);
connect(arpLookup, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(arpLookupDone(int,QProcess::ExitStatus)));
arpLookup->start("arp", {"-vn"});
}
host->setHostName(vendor);
QHostInfo::lookupHost(address, this, SLOT(hostLookupDone(QHostInfo)));
m_pendingNameLookups.insert(address, host);
m_scanResults.append(host);
}
}
}
if (foundHosts == 0 && m_discoveryProcesses.isEmpty()) {
qCDebug(dcDiscovery()) << "Network scan successful but no hosts found in this network";
finishDiscovery();
}
}
void Discovery::hostLookupDone(const QHostInfo &info)
{
Host *host = m_pendingNameLookups.take(info.addresses().first().toString());
if (!host) {
// Probably aborted...
return;
}
if (info.error() != QHostInfo::NoError) {
qWarning(dcDiscovery()) << "Host lookup failed:" << info.errorString();
}
if (host->hostName().isEmpty() || info.hostName() != host->address()) {
host->setHostName(info.hostName());
}
finishDiscovery();
}
void Discovery::arpLookupDone(int exitCode, QProcess::ExitStatus exitStatus)
{
QProcess *p = static_cast<QProcess*>(sender());
p->deleteLater();
Host *host = m_pendingArpLookups.take(p);
if (exitCode != 0 || exitStatus != QProcess::NormalExit) {
qCWarning(dcDiscovery()) << "ARP lookup process failed for host" << host->address();
finishDiscovery();
return;
}
QString data = QString::fromLatin1(p->readAll());
foreach (QString line, data.split('\n')) {
line.replace(QRegExp("[ ]{1,}"), " ");
QStringList parts = line.split(" ");
if (parts.count() >= 3 && parts.first() == host->address() && parts.at(1) == "ether") {
host->setMacAddress(parts.at(2));
break;
}
}
finishDiscovery();
}
void Discovery::onTimeout()
{
qWarning(dcDiscovery()) << "Timeout hit. Stopping discovery";
while (!m_discoveryProcesses.isEmpty()) {
QProcess *discoveryProcess = m_discoveryProcesses.takeFirst();
disconnect(this, SLOT(discoveryFinished(int,QProcess::ExitStatus)));
discoveryProcess->terminate();
delete discoveryProcess;
}
foreach (QProcess *p, m_pendingArpLookups.keys()) {
p->terminate();
m_scanResults.removeAll(m_pendingArpLookups.value(p));
delete p;
}
m_pendingArpLookups.clear();
m_pendingNameLookups.clear();
finishDiscovery();
}
QStringList Discovery::getDefaultTargets()
{
QStringList targets;
foreach (const QHostAddress &interface, QNetworkInterface::allAddresses()) {
if (!interface.isLoopback() && interface.scopeId().isEmpty() && interface.protocol() == QAbstractSocket::IPv4Protocol) {
QPair<QHostAddress, int> pair = QHostAddress::parseSubnet(interface.toString() + "/24");
QString newTarget = QString("%1/%2").arg(pair.first.toString()).arg(pair.second);
if (!targets.contains(newTarget)) {
targets.append(newTarget);
}
}
}
return targets;
}
void Discovery::finishDiscovery()
{
if (m_discoveryProcesses.count() > 0 || m_pendingNameLookups.count() > 0 || m_pendingArpLookups.count() > 0) {
// Still busy...
return;
}
QList<Host> hosts;
foreach (Host *host, m_scanResults) {
if (!host->macAddress().isEmpty()) {
hosts.append(*host);
}
}
qDeleteAll(m_scanResults);
m_scanResults.clear();
qCDebug(dcDiscovery()) << "Found" << hosts.count() << "network devices";
m_timeoutTimer.stop();
emit finished(hosts);
}

75
discovery/discovery.h
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright 2013 - 2020, nymea GmbH
* Contact: contact@nymea.io
*
* This file is part of nymea.
* This project including source code and documentation is protected by
* copyright law, and remains the property of nymea GmbH. All rights, including
* reproduction, publication, editing and translation, are reserved. The use of
* this project is subject to the terms of a license agreement to be concluded
* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
* under https://nymea.io/license
*
* GNU Lesser General Public License Usage
* Alternatively, this project may be redistributed and/or modified under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; version 3. This project 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this project. If not, see <https://www.gnu.org/licenses/>.
*
* For any further details and any questions please contact us under
* contact@nymea.io or see our FAQ/Licensing Information on
* https://nymea.io/license/faq
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifndef DISCOVERY_H
#define DISCOVERY_H
#include <QObject>
#include <QProcess>
#include <QHostInfo>
#include <QTimer>
#include "host.h"
class Discovery : public QObject
{
Q_OBJECT
public:
explicit Discovery(QObject *parent = nullptr);
void discoverHosts(int timeout);
void abort();
bool isRunning() const;
signals:
void finished(const QList<Host> &hosts);
private:
QStringList getDefaultTargets();
void finishDiscovery();
private slots:
void discoveryFinished(int exitCode, QProcess::ExitStatus exitStatus);
void hostLookupDone(const QHostInfo &info);
void arpLookupDone(int exitCode, QProcess::ExitStatus exitStatus);
void onTimeout();
private:
QList<QProcess*> m_discoveryProcesses;
QTimer m_timeoutTimer;
QHash<QProcess*, Host*> m_pendingArpLookups;
QHash<QString, Host*> m_pendingNameLookups;
QList<Host*> m_scanResults;
};
#endif // DISCOVERY_H

94
discovery/host.cpp
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright 2013 - 2020, nymea GmbH
* Contact: contact@nymea.io
*
* This file is part of nymea.
* This project including source code and documentation is protected by
* copyright law, and remains the property of nymea GmbH. All rights, including
* reproduction, publication, editing and translation, are reserved. The use of
* this project is subject to the terms of a license agreement to be concluded
* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
* under https://nymea.io/license
*
* GNU Lesser General Public License Usage
* Alternatively, this project may be redistributed and/or modified under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; version 3. This project 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this project. If not, see <https://www.gnu.org/licenses/>.
*
* For any further details and any questions please contact us under
* contact@nymea.io or see our FAQ/Licensing Information on
* https://nymea.io/license/faq
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "host.h"
Host::Host()
{
qRegisterMetaType<Host>();
qRegisterMetaType<QList<Host> >();
}
QString Host::macAddress() const
{
return m_macAddress;
}
void Host::setMacAddress(const QString &macAddress)
{
m_macAddress = macAddress;
}
QString Host::hostName() const
{
return m_hostName;
}
void Host::setHostName(const QString &hostName)
{
m_hostName = hostName;
}
QString Host::address() const
{
return m_address;
}
void Host::setAddress(const QString &address)
{
m_address = address;
}
void Host::seen()
{
m_lastSeenTime = QDateTime::currentDateTime();
}
QDateTime Host::lastSeenTime() const
{
return m_lastSeenTime;
}
bool Host::reachable() const
{
return m_reachable;
}
void Host::setReachable(bool reachable)
{
m_reachable = reachable;
}
QDebug operator<<(QDebug dbg, const Host &host)
{
dbg.nospace() << "Host(" << host.macAddress() << "," << host.hostName() << ", " << host.address() << ", " << (host.reachable() ? "up" : "down") << ")";
return dbg.space();
}

70
discovery/host.h
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright 2013 - 2020, nymea GmbH
* Contact: contact@nymea.io
*
* This file is part of nymea.
* This project including source code and documentation is protected by
* copyright law, and remains the property of nymea GmbH. All rights, including
* reproduction, publication, editing and translation, are reserved. The use of
* this project is subject to the terms of a license agreement to be concluded
* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
* under https://nymea.io/license
*
* GNU Lesser General Public License Usage
* Alternatively, this project may be redistributed and/or modified under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; version 3. This project 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this project. If not, see <https://www.gnu.org/licenses/>.
*
* For any further details and any questions please contact us under
* contact@nymea.io or see our FAQ/Licensing Information on
* https://nymea.io/license/faq
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifndef HOST_H
#define HOST_H
#include <QString>
#include <QDebug>
#include <QDateTime>
class Host
{
public:
Host();
QString macAddress() const;
void setMacAddress(const QString &macAddress);
QString hostName() const;
void setHostName(const QString &hostName);
QString address() const;
void setAddress(const QString &address);
void seen();
QDateTime lastSeenTime() const;
bool reachable() const;
void setReachable(bool reachable);
private:
QString m_macAddress;
QString m_hostName;
QString m_address;
QDateTime m_lastSeenTime;
bool m_reachable;
};
Q_DECLARE_METATYPE(Host)
QDebug operator<<(QDebug dbg, const Host &host);
#endif // HOST_H