/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the test suite of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

// When using WinSock2 on Windows, it's the first thing that can be included

// (except qglobal.h), or else you'll get tons of compile errors

#include <qglobal.h>

// MinGW doesn't provide getaddrinfo(), so we test for Q_OS_WIN

// and Q_CC_GNU, which indirectly tells us whether we're using MinGW.

#if defined(Q_OS_WIN) && defined(Q_CC_GNU)

# define QT_NO_GETADDRINFO

#endif

#if defined(Q_OS_WIN) && !defined(QT_NO_GETADDRINFO)

# include <winsock2.h>

# include <ws2tcpip.h>

#endif

#include <QtTest/QtTest>

#include <qcoreapplication.h>

#include <QDebug>

#include <QTcpSocket>

#include <private/qthread_p.h>

#include <QTcpServer>

#include <time.h>

#include <qlibrary.h>

#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)

#include <windows.h>

#else

#include <unistd.h>

#include <signal.h>

#endif

#include <qhostinfo.h>

#include "private/qhostinfo_p.h"

#if !defined(QT_NO_GETADDRINFO)

# if !defined(Q_OS_WINCE)

#  include <sys/types.h>

# else

#  include <types.h>

# endif

# if defined(Q_OS_UNIX)

#  include <sys/socket.h>

# endif

# if !defined(Q_OS_WIN)

#  include <netdb.h>

# endif

#endif

#include "../network-settings.h"

#include "../../shared/util.h"

//TESTED_CLASS=

//TESTED_FILES=

const char * const lupinellaIp = "10.3.4.6";

class tst_QHostInfo : public QObject

{

    Q_OBJECT

public:

    tst_QHostInfo();

    virtual ~tst_QHostInfo();

public slots:

    void init();

    void cleanup();

    void initTestCase();

private slots:

    void getSetCheck();

    void staticInformation();

    void lookupIPv4_data();

    void lookupIPv4();

    void lookupIPv6_data();

    void lookupIPv6();

    void reverseLookup_data();

    void reverseLookup();

    void blockingLookup_data();

    void blockingLookup();

    void raceCondition();

    void threadSafety();

    void multipleSameLookups();

    void multipleDifferentLookups();

    void cache();

protected slots:

    void resultsReady(const QHostInfo &);

private:

    bool ipv6LookupsAvailable;

    bool ipv6Available;

    bool lookupDone;

    int lookupsDoneCounter;

    QHostInfo lookupResults;

};

// Testing get/set functions

void tst_QHostInfo::getSetCheck()

{

    QHostInfo obj1;

    // HostInfoError QHostInfo::error()

    // void QHostInfo::setError(HostInfoError)

    obj1.setError(QHostInfo::HostInfoError(0));

    QCOMPARE(QHostInfo::HostInfoError(0), obj1.error());

    obj1.setError(QHostInfo::HostInfoError(1));

    QCOMPARE(QHostInfo::HostInfoError(1), obj1.error());

    // int QHostInfo::lookupId()

    // void QHostInfo::setLookupId(int)

    obj1.setLookupId(0);

    QCOMPARE(0, obj1.lookupId());

    obj1.setLookupId(INT_MIN);

    QCOMPARE(INT_MIN, obj1.lookupId());

    obj1.setLookupId(INT_MAX);

    QCOMPARE(INT_MAX, obj1.lookupId());

}

void tst_QHostInfo::staticInformation()

{

    qDebug() << "Hostname:" << QHostInfo::localHostName();

    qDebug() << "Domain name:" << QHostInfo::localDomainName();

}

tst_QHostInfo::tst_QHostInfo()

{

    Q_SET_DEFAULT_IAP

}

tst_QHostInfo::~tst_QHostInfo()

{

}

void tst_QHostInfo::initTestCase()

{

    ipv6Available = false;

    ipv6LookupsAvailable = false;

#if !defined(QT_NO_GETADDRINFO)

    // check if the system getaddrinfo can do IPv6 lookups

    struct addrinfo hint, *result = 0;

    memset(&hint, 0, sizeof hint);

    hint.ai_family = AF_UNSPEC;

# ifdef AI_ADDRCONFIG

    hint.ai_flags = AI_ADDRCONFIG;

# endif

    int res = getaddrinfo("::1", "80", &hint, &result);

    if (res == 0) {

        // this test worked

        freeaddrinfo(result);

        res = getaddrinfo("ipv6-test.dev.troll.no", "80", &hint, &result);

        if (res == 0 && result != 0 && result->ai_family != AF_INET) {

            freeaddrinfo(result);

            ipv6LookupsAvailable = true;

        }

    }

#endif

    QTcpServer server;

    if (server.listen(QHostAddress("::1"))) {

        // We have IPv6 support

        ipv6Available = true;

    }

    // run each testcase with and without test enabled

    QTest::addColumn<bool>("cache");

    QTest::newRow("WithCache") << true;

    QTest::newRow("WithoutCache") << false;

}

void tst_QHostInfo::init()

{

    // delete the cache so inidividual testcase results are independant from each other

    qt_qhostinfo_clear_cache();

    QFETCH_GLOBAL(bool, cache);

    qt_qhostinfo_enable_cache(cache);

}

void tst_QHostInfo::cleanup()

{

}

void tst_QHostInfo::lookupIPv4_data()

{

    QTest::addColumn<QString>("hostname");

    QTest::addColumn<QString>("addresses");

    QTest::addColumn<int>("err");

#ifdef Q_OS_SYMBIAN

    // Test server lookup

    QTest::newRow("lookup_01") << QtNetworkSettings::serverName() << QtNetworkSettings::serverIP().toString() << int(QHostInfo::NoError);

    QTest::newRow("literal_ip4") << QtNetworkSettings::serverIP().toString() << QtNetworkSettings::serverIP().toString() << int(QHostInfo::NoError);

    QTest::newRow("multiple_ip4") << "multi.dev.troll.no" << "1.2.3.4 1.2.3.5 10.3.3.31" << int(QHostInfo::NoError);

#else

    QTest::newRow("empty") << "" << "" << int(QHostInfo::HostNotFound);

    QTest::newRow("single_ip4") << "lupinella.troll.no" << lupinellaIp << int(QHostInfo::NoError);

    QTest::newRow("multiple_ip4") << "multi.dev.troll.no" << "1.2.3.4 1.2.3.5 10.3.3.31" << int(QHostInfo::NoError);

    QTest::newRow("literal_ip4") << lupinellaIp << lupinellaIp << int(QHostInfo::NoError);

#endif

    QTest::newRow("notfound") << "this-name-does-not-exist-hopefully." << "" << int(QHostInfo::HostNotFound);

    QTest::newRow("idn-ace") << "xn--alqualond-34a.troll.no" << "10.3.3.55" << int(QHostInfo::NoError);

    QTest::newRow("idn-unicode") << QString::fromLatin1("alqualond\353.troll.no") << "10.3.3.55" << int(QHostInfo::NoError);

}

void tst_QHostInfo::lookupIPv4()

{

    QFETCH(QString, hostname);

    QFETCH(int, err);

    QFETCH(QString, addresses);

    lookupDone = false;

    QHostInfo::lookupHost(hostname, this, SLOT(resultsReady(const QHostInfo&)));

    QTestEventLoop::instance().enterLoop(10);

    QVERIFY(!QTestEventLoop::instance().timeout());

    QVERIFY(lookupDone);

    if ((int)lookupResults.error() != (int)err) {

        qWarning() << hostname << "=>" << lookupResults.errorString();

    }

    QCOMPARE((int)lookupResults.error(), (int)err);

    QStringList tmp;

    for (int i = 0; i < lookupResults.addresses().count(); ++i)

        tmp.append(lookupResults.addresses().at(i).toString());

    tmp.sort();

    QStringList expected = addresses.split(' ');

    expected.sort();

    QCOMPARE(tmp.join(" "), expected.join(" "));

}

void tst_QHostInfo::lookupIPv6_data()

{

    QTest::addColumn<QString>("hostname");

    QTest::addColumn<QString>("addresses");

    QTest::addColumn<int>("err");

    QTest::newRow("ip6") << "www.ipv6-net.org" << "62.93.217.177 2001:618:1401:0:0:0:0:4" << int(QHostInfo::NoError);

    // avoid using real IPv6 addresses here because this will do a DNS query

    // real addresses are between 2000:: and 3fff:ffff:ffff:ffff:ffff:ffff:ffff

    QTest::newRow("literal_ip6") << "f001:6b0:1:ea:202:a5ff:fecd:13a6" << "f001:6b0:1:ea:202:a5ff:fecd:13a6" << int(QHostInfo::NoError);

    QTest::newRow("literal_shortip6") << "f001:618:1401::4" << "f001:618:1401:0:0:0:0:4" << int(QHostInfo::NoError);

}

void tst_QHostInfo::lookupIPv6()

{

    QFETCH(QString, hostname);

    QFETCH(int, err);

    QFETCH(QString, addresses);

    if (!ipv6LookupsAvailable)

        QSKIP("This platform does not support IPv6 lookups", SkipAll);

    lookupDone = false;

    QHostInfo::lookupHost(hostname, this, SLOT(resultsReady(const QHostInfo&)));

    QTestEventLoop::instance().enterLoop(3);

    QVERIFY(!QTestEventLoop::instance().timeout());

    QVERIFY(lookupDone);

    QCOMPARE((int)lookupResults.error(), (int)err);

    QStringList tmp;

    for (int i = 0; i < lookupResults.addresses().count(); ++i)

        tmp.append(lookupResults.addresses().at(i).toString());

    tmp.sort();

    QStringList expected = addresses.split(' ');

    expected.sort();

    QCOMPARE(tmp.join(" ").toLower(), expected.join(" ").toLower());

}

void tst_QHostInfo::reverseLookup_data()

{

    QTest::addColumn<QString>("address");

    QTest::addColumn<QStringList>("hostNames");

    QTest::addColumn<int>("err");

    QTest::newRow("trolltech.com") << QString("62.70.27.69") << QStringList(QString("diverse.troll.no")) << 0;

    // ### Use internal DNS instead. Discussed with Andreas.

    //QTest::newRow("classical.hexago.com") << QString("2001:5c0:0:2::24") << QStringList(QString("classical.hexago.com")) << 0;

    QTest::newRow("origin.cisco.com") << QString("12.159.148.94") << QStringList(QString("origin.cisco.com")) << 0;

    QTest::newRow("bogus-name") << QString("1::2::3::4") << QStringList() << 1;

}

void tst_QHostInfo::reverseLookup()

{

    QFETCH(QString, address);

    QFETCH(QStringList, hostNames);

    QFETCH(int, err);

    if (!ipv6LookupsAvailable && hostNames.contains("classical.hexago.com")) {

        QSKIP("IPv6 lookups are not supported on this platform", SkipSingle);

    }

#if defined(Q_OS_HPUX) && defined(__ia64)

    if (hostNames.contains("classical.hexago.com"))

        QSKIP("HP-UX 11i does not support IPv6 reverse lookups.", SkipSingle);

#endif

    QHostInfo info = QHostInfo::fromName(address);

    if (err == 0) {

        QVERIFY(hostNames.contains(info.hostName()));

        QCOMPARE(info.addresses().first(), QHostAddress(address));

    } else {

        QCOMPARE(info.hostName(), address);

        QCOMPARE(info.error(), QHostInfo::HostNotFound);

    }

}

void tst_QHostInfo::blockingLookup_data()

{

    lookupIPv4_data();

    if (ipv6LookupsAvailable)

        lookupIPv6_data();

}

void tst_QHostInfo::blockingLookup()

{

    QFETCH(QString, hostname);

    QFETCH(int, err);

    QFETCH(QString, addresses);

    QHostInfo hostInfo = QHostInfo::fromName(hostname);

    QStringList tmp;

    for (int i = 0; i < hostInfo.addresses().count(); ++i)

        tmp.append(hostInfo.addresses().at(i).toString());

    tmp.sort();

    if ((int)hostInfo.error() != (int)err) {

        qWarning() << hostname << "=>" << lookupResults.errorString();

    }

    QCOMPARE((int)hostInfo.error(), (int)err);

    QStringList expected = addresses.split(' ');

    expected.sort();

    QCOMPARE(tmp.join(" ").toUpper(), expected.join(" ").toUpper());

}

void tst_QHostInfo::raceCondition()

{

    for (int i = 0; i < 1000; ++i) {

        QTcpSocket socket;

        socket.connectToHost("notavalidname.troll.no", 80);

    }

}

class LookupThread : public QThread

{

protected:

    inline void run()

    {

         QHostInfo info = QHostInfo::fromName("qt.nokia.com");

         QCOMPARE(info.addresses().at(0).toString(), QString("87.238.50.178"));

    }

};

void tst_QHostInfo::threadSafety()

{

    const int nattempts = 5;

#if defined(Q_OS_WINCE)

    const int runs = 10;

#else

    const int runs = 100;

#endif

    LookupThread thr[nattempts];

    for (int j = 0; j < runs; ++j) {

        for (int i = 0; i < nattempts; ++i)

            thr[i].start();

        for (int k = nattempts - 1; k >= 0; --k)

            thr[k].wait();

    }

}

// this test is for the multi-threaded QHostInfo rewrite. It is about getting results at all,

// not about getting correct IPs

void tst_QHostInfo::multipleSameLookups()

{

    const int COUNT = 10;

    lookupsDoneCounter = 0;

    for (int i = 0; i < COUNT; i++)

        QHostInfo::lookupHost("localhost", this, SLOT(resultsReady(const QHostInfo)));

}

// this test is for the multi-threaded QHostInfo rewrite. It is about getting results at all,

// not about getting correct IPs

void tst_QHostInfo::multipleDifferentLookups()

{

    QStringList hostnameList;

    hostnameList << "www.ovi.com" << "www.nokia.com" << "qt.nokia.com" << "www.trolltech.com" << "troll.no"

    const int COUNT = hostnameList.size();

    lookupsDoneCounter = 0;

    for (int i = 0; i < hostnameList.size(); i++)

}

void tst_QHostInfo::cache()

{

    QFETCH_GLOBAL(bool, cache);

    if (!cache)

        return; // test makes only sense when cache enabled

    // reset slot counter

    lookupsDoneCounter = 0;

    // lookup once, wait in event loop, result should not come directly.

    bool valid = true;

    int id = -1;

    QHostInfo result = qt_qhostinfo_lookup("localhost", this, SLOT(resultsReady(QHostInfo)), &valid, &id);

    QTestEventLoop::instance().enterLoop(5);

    QVERIFY(!QTestEventLoop::instance().timeout());

    QVERIFY(valid == false);

    QVERIFY(result.addresses().isEmpty());

    // loopkup second time, result should come directly

    valid = false;

    result = qt_qhostinfo_lookup("localhost", this, SLOT(resultsReady(QHostInfo)), &valid, &id);

    QVERIFY(valid == true);

    QVERIFY(!result.addresses().isEmpty());

    // clear the cache

    qt_qhostinfo_clear_cache();

    // lookup third time, result should not come directly.

    valid = true;

    result = qt_qhostinfo_lookup("localhost", this, SLOT(resultsReady(QHostInfo)), &valid, &id);

    QTestEventLoop::instance().enterLoop(5);

    QVERIFY(!QTestEventLoop::instance().timeout());

    QVERIFY(valid == false);