C++ QNetworkProxyQuery类代码示例

QList<QNetworkProxy> PackageManagerProxyFactory::queryProxy(const QNetworkProxyQuery &query)
{
    const Settings &settings = m_core->settings();
    QList<QNetworkProxy> list;

    if (settings.proxyType() == Settings::SystemProxy) {
#if defined(Q_OS_UNIX) && !defined(Q_OS_OSX)
        QUrl proxyUrl = QUrl::fromUserInput(QString::fromUtf8(qgetenv("http_proxy")));
        if (proxyUrl.isValid()) {
            return list << QNetworkProxy(QNetworkProxy::HttpProxy, proxyUrl.host(), proxyUrl.port(),
                proxyUrl.userName(), proxyUrl.password());
        }
#endif
        return QNetworkProxyFactory::systemProxyForQuery(query);
    }

    if ((settings.proxyType() == Settings::NoProxy))
        return list << QNetworkProxy(QNetworkProxy::NoProxy);

    if (query.queryType() == QNetworkProxyQuery::UrlRequest) {
        if (query.url().scheme() == QLatin1String("ftp"))
            return list << settings.ftpProxy();

        if ((query.url().scheme() == QLatin1String("http"))
            || (query.url().scheme() == QLatin1String("https"))) {
                return list << settings.httpProxy();
            }
    }
    return list << QNetworkProxy(QNetworkProxy::DefaultProxy);
}

	virtual QList<QNetworkProxy> queryProxy(const QNetworkProxyQuery& query = QNetworkProxyQuery())
	{
		if ((query.peerHostName().compare("localhost", Qt::CaseInsensitive) == 0) ||
			(query.peerHostName().compare("127.0.0.1") == 0))
		{
			return *_defaultProxyList;
		} else if (_useProxy) {
			return *_proxyList;
		} else {
			return QNetworkProxyFactory::systemProxyForQuery(query);
		}
	}

QList<QNetworkProxy> EnvHttpProxyFactory::queryProxy(const QNetworkProxyQuery& query)
{
    QString protocol = query.protocolTag().toLower();
    bool localHost = false;

    if (!query.peerHostName().compare(QLatin1String("localhost"), Qt::CaseInsensitive) || !query.peerHostName().compare(QLatin1String("127.0.0.1"), Qt::CaseInsensitive))
        localHost = true;
    if (protocol == QLatin1String("http") && !localHost)
        return m_httpProxy;
    if (protocol == QLatin1String("https") && !localHost)
        return m_httpsProxy;

    QList<QNetworkProxy> proxies;
    proxies << QNetworkProxy::NoProxy;
    return proxies;
}

QList<QNetworkProxy> NetworkProxyFactory::queryProxy(const QNetworkProxyQuery& query)
{
   QList<QNetworkProxy> results;

   if (query.peerHostName() == QString::fromAscii("127.0.0.1")
       || query.peerHostName().toLower() == QString::fromAscii("localhost"))
   {
      results.append(QNetworkProxy::NoProxy);
   }
   else
   {
      results = systemProxyForQuery(query);
   }

   return results;
}

QList<QNetworkProxy> PackageManagerProxyFactory::queryProxy(const QNetworkProxyQuery &query)
{
    const Settings &settings = m_core->settings();
    QList<QNetworkProxy> list;

    if (settings.proxyType() == Settings::SystemProxy) {
        QList<QNetworkProxy> systemProxies = systemProxyForQuery(query);

        auto proxyIter = systemProxies.begin();
        for (; proxyIter != systemProxies.end(); ++proxyIter) {
            QNetworkProxy &proxy = *proxyIter;
            auto p = std::find_if(m_proxyCredentials.constBegin(), m_proxyCredentials.constEnd(),
                                  FindProxyCredential(proxy.hostName(), proxy.port()));
            if (p != m_proxyCredentials.constEnd()) {
                proxy.setUser(p->user);
                proxy.setPassword(p->password);
            }
        }
        return systemProxies;
    }

    if ((settings.proxyType() == Settings::NoProxy))
        return list << QNetworkProxy(QNetworkProxy::NoProxy);

    if (query.queryType() == QNetworkProxyQuery::UrlRequest) {
        QNetworkProxy proxy;
        if (query.url().scheme() == QLatin1String("ftp")) {
            proxy = settings.ftpProxy();
        } else if (query.url().scheme() == QLatin1String("http")
                 || query.url().scheme() == QLatin1String("https")) {
            proxy = settings.httpProxy();
        }


        auto p = std::find_if(m_proxyCredentials.constBegin(), m_proxyCredentials.constEnd(),
                              FindProxyCredential(proxy.hostName(), proxy.port()));
        if (p != m_proxyCredentials.constEnd()) {
            proxy.setUser(p->user);
            proxy.setPassword(p->password);
        }
        return list << proxy;
    }
    return list << QNetworkProxy(QNetworkProxy::DefaultProxy);
}

static QList<QNetworkProxy> parseServerList(const QNetworkProxyQuery &query, const QStringList &proxyList)
{
    // Reference documentation from Microsoft:
    // http://msdn.microsoft.com/en-us/library/aa383912(VS.85).aspx
    //
    // According to the website, the proxy server list is
    // one or more of the space- or semicolon-separated strings in the format:
    //   ([<scheme>=][<scheme>"://"]<server>[":"<port>])

    QList<QNetworkProxy> result;
    foreach (const QString &entry, proxyList) {
        int server = 0;

        int pos = entry.indexOf(QLatin1Char('='));
        if (pos != -1) {
            QStringRef scheme = entry.leftRef(pos);
            if (scheme != query.protocolTag())
                continue;

            server = pos + 1;
        }

        QNetworkProxy::ProxyType proxyType = QNetworkProxy::HttpProxy;
        quint16 port = 8080;

        pos = entry.indexOf(QLatin1String("://"), server);
        if (pos != -1) {
            QStringRef scheme = entry.midRef(server, pos - server);
            if (scheme == QLatin1String("http") || scheme == QLatin1String("https")) {
                // no-op
                // defaults are above
            } else if (scheme == QLatin1String("socks") || scheme == QLatin1String("socks5")) {
                proxyType = QNetworkProxy::Socks5Proxy;
                port = 1080;
            } else {
                // unknown proxy type
                continue;
            }

            server = pos + 3;
        }

        pos = entry.indexOf(QLatin1Char(':'), server);
        if (pos != -1) {
            bool ok;
            uint value = entry.mid(pos + 1).toUInt(&ok);
            if (!ok || value > 65535)
                continue;       // invalid port number

            port = value;
        } else {
            pos = entry.length();
        }

        result << QNetworkProxy(proxyType, entry.mid(server, pos - server), port);
    }

QList<QNetworkProxy> NetworkProxyFactory::queryProxy(const QNetworkProxyQuery &query)
{
    QList<QNetworkProxy> ret;

    if (query.protocolTag() == QLatin1String("http") && m_httpProxy.type() != QNetworkProxy::DefaultProxy)
        ret << m_httpProxy;
    ret << m_globalProxy;

    return ret;
}

QList<QNetworkProxy> NetworkProxyFactory::queryProxy(const QNetworkProxyQuery &query)
{
	if (m_proxyMode == SystemProxy)
	{
		return QNetworkProxyFactory::systemProxyForQuery(query);
	}

	if (m_proxyMode == ManualProxy)
	{
		const QString protocol = query.protocolTag().toLower();

		if (m_proxies.contains(QNetworkProxy::Socks5Proxy))
		{
			return m_proxies[QNetworkProxy::Socks5Proxy];
		}
		else if (protocol == QLatin1String("http") && m_proxies.contains(QNetworkProxy::HttpProxy))
		{
			return m_proxies[QNetworkProxy::HttpProxy];
		}
		else if (protocol == QLatin1String("https") && m_proxies.contains(QNetworkProxy::HttpCachingProxy))
		{
			return m_proxies[QNetworkProxy::HttpCachingProxy];
		}
		else if (protocol == QLatin1String("ftp") && m_proxies.contains(QNetworkProxy::FtpCachingProxy))
		{
			return m_proxies[QNetworkProxy::FtpCachingProxy];
		}
		else
		{
			return m_proxies[QNetworkProxy::NoProxy];
		}
	}

	if (m_proxyMode == AutomaticProxy && m_automaticProxy)
	{
		return m_automaticProxy->getProxy(query.url().toString(), query.peerHostName());
	}

	return m_proxies[QNetworkProxy::NoProxy];
}

QList< QNetworkProxy >
NetworkProxyFactory::queryProxy( const QNetworkProxyQuery& query )
{
    //tDebug() << Q_FUNC_INFO << "query hostname is " << query.peerHostName();
    QList< QNetworkProxy > proxies;
    QString hostname = query.peerHostName();
    s_noProxyHostsMutex.lock();
    if ( s_noProxyHosts.contains( hostname ) )
        proxies << QNetworkProxy::NoProxy << systemProxyForQuery( query );
    else if ( m_proxy.hostName().isEmpty() || hostname.isEmpty() || TomahawkSettings::instance()->proxyType() == QNetworkProxy::NoProxy )
        proxies << systemProxyForQuery( query );
    else
        proxies << m_proxy << systemProxyForQuery( query );
    s_noProxyHostsMutex.unlock();
    return proxies;
}

QList<QNetworkProxy> QGlobalNetworkProxy::proxyForQuery(const QNetworkProxyQuery &query)
{
    QMutexLocker locker(&mutex);

    QList<QNetworkProxy> result;

    // don't look for proxies for a local connection
    QHostAddress parsed;
    QString hostname = query.url().host();
    if (hostname == QLatin1String("localhost")
        || hostname.startsWith(QLatin1String("localhost."))
        || (parsed.setAddress(hostname)
            && (parsed == QHostAddress::LocalHost
                || parsed == QHostAddress::LocalHostIPv6))) {
        result << QNetworkProxy(QNetworkProxy::NoProxy);
        return result;
    }

    if (!applicationLevelProxyFactory) {
        if (applicationLevelProxy
            && applicationLevelProxy->type() != QNetworkProxy::DefaultProxy)
            result << *applicationLevelProxy;
        else
            result << QNetworkProxy(QNetworkProxy::NoProxy);
        return result;
    }

    // we have a factory
    result = applicationLevelProxyFactory->queryProxy(query);
    if (result.isEmpty()) {
        qWarning("QNetworkProxyFactory: factory %p has returned an empty result set",
                 applicationLevelProxyFactory);
        result << QNetworkProxy(QNetworkProxy::NoProxy);
    }
    return result;
}

QT_BEGIN_NAMESPACE

QList<QNetworkProxy> QNetworkProxyFactory::systemProxyForQuery(const QNetworkProxyQuery &query)
{
    QNetworkProxy proxy;

    if (query.queryType() != QNetworkProxyQuery::UrlRequest) {
        qWarning("Unsupported query type: %d", query.queryType());
        return QList<QNetworkProxy>() << QNetworkProxy(QNetworkProxy::NoProxy);
    }

    QUrl url  = query.url();

    if (!url.isValid()) {
        qWarning("Invalid URL: %s", qPrintable(url.toString()));
        return QList<QNetworkProxy>() << QNetworkProxy(QNetworkProxy::NoProxy);
    }

    netstatus_proxy_details_t details;
    memset(&details, 0, sizeof(netstatus_proxy_details_t));

#if BPS_VERSION >= 3001001

    QByteArray bUrl(url.toEncoded());
    QString sInterface(query.networkConfiguration().name());
    QByteArray bInterface;
    if (!sInterface.isEmpty()) {
        if (query.networkConfiguration().type() != QNetworkConfiguration::InternetAccessPoint) {
            qWarning("Unsupported configuration type: %d", query.networkConfiguration().type());
            return QList<QNetworkProxy>() << QNetworkProxy(QNetworkProxy::NoProxy);
        }
        bInterface = sInterface.toUtf8();
    }

    if (netstatus_get_proxy_details_for_url(bUrl.constData(), (bInterface.isEmpty() ? NULL : bInterface.constData()), &details) != BPS_SUCCESS) {
        qWarning("netstatus_get_proxy_details_for_url failed! errno: %d", errno);
        return QList<QNetworkProxy>() << QNetworkProxy(QNetworkProxy::NoProxy);
    }

#else

    if (netstatus_get_proxy_details(&details) != BPS_SUCCESS) {
        qWarning("netstatus_get_proxy_details failed! errno: %d", errno);
        return QList<QNetworkProxy>() << QNetworkProxy(QNetworkProxy::NoProxy);
    }

#endif

    if (details.http_proxy_host == NULL) { // No proxy
        netstatus_free_proxy_details(&details);
        return QList<QNetworkProxy>() << QNetworkProxy(QNetworkProxy::NoProxy);
    }

    QString protocol = query.protocolTag();
    if (protocol.startsWith(QLatin1String("http"), Qt::CaseInsensitive)) { // http, https
        proxy.setType((QNetworkProxy::HttpProxy));
    } else if (protocol == QLatin1String("ftp")) {
        proxy.setType(QNetworkProxy::FtpCachingProxy);
    } else { // assume http proxy
        qDebug("Proxy type: %s assumed to be http proxy", qPrintable(protocol));
        proxy.setType((QNetworkProxy::HttpProxy));
    }

    // Set host
    // Note: ftp and https proxy type fields *are* obsolete.
    // The user interface allows only one host/port which gets duplicated
    // to all proxy type fields.
    proxy.setHostName(QString::fromUtf8(details.http_proxy_host));

    // Set port
    proxy.setPort(details.http_proxy_port);

    // Set username
    if (details.http_proxy_login_user)
        proxy.setUser(QString::fromUtf8(details.http_proxy_login_user));

    // Set password
    if (details.http_proxy_login_password)
        proxy.setPassword(QString::fromUtf8(details.http_proxy_login_password));

    netstatus_free_proxy_details(&details);

    return QList<QNetworkProxy>() << proxy;
}

QList<QNetworkProxy> macQueryInternal(const QNetworkProxyQuery &query)
{
    QList<QNetworkProxy> result;

    // obtain a dictionary to the proxy settings:
    CFDictionaryRef dict = SCDynamicStoreCopyProxies(NULL);
    if (!dict) {
        qWarning("QNetworkProxyFactory::systemProxyForQuery: SCDynamicStoreCopyProxies returned NULL");
        return result;          // failed
    }

    if (isHostExcluded(dict, query.peerHostName())) {
        CFRelease(dict);
        return result;          // no proxy for this host
    }

    // is there a PAC enabled? If so, use it first.
    CFNumberRef pacEnabled;
    if ((pacEnabled = (CFNumberRef)CFDictionaryGetValue(dict, kSCPropNetProxiesProxyAutoConfigEnable))) {
        int enabled;
        if (CFNumberGetValue(pacEnabled, kCFNumberIntType, &enabled) && enabled) {
            // PAC is enabled
            CFStringRef cfPacLocation = (CFStringRef)CFDictionaryGetValue(dict, kSCPropNetProxiesProxyAutoConfigURLString);

#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
            if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) {
                QCFType<CFDataRef> pacData;
                QCFType<CFURLRef> pacUrl = CFURLCreateWithString(kCFAllocatorDefault, cfPacLocation, NULL);
                SInt32 errorCode;
                if (!CFURLCreateDataAndPropertiesFromResource(kCFAllocatorDefault, pacUrl, &pacData, NULL, NULL, &errorCode)) {
                    QString pacLocation = QCFString::toQString(cfPacLocation);
                    qWarning("Unable to get the PAC script at \"%s\" (%s)", qPrintable(pacLocation), cfurlErrorDescription(errorCode));
                    return result;
                }

                QCFType<CFStringRef> pacScript = CFStringCreateFromExternalRepresentation(kCFAllocatorDefault, pacData, kCFStringEncodingISOLatin1);
                if (!pacScript) {
                    // This should never happen, but the documentation says it may return NULL if there was a problem creating the object.
                    QString pacLocation = QCFString::toQString(cfPacLocation);
                    qWarning("Unable to read the PAC script at \"%s\"", qPrintable(pacLocation));
                    return result;
                }

                QByteArray encodedURL = query.url().toEncoded(); // converted to UTF-8
                if (encodedURL.isEmpty()) {
                    return result; // Invalid URL, abort
                }

                QCFType<CFURLRef> targetURL = CFURLCreateWithBytes(kCFAllocatorDefault, (UInt8*)encodedURL.data(), encodedURL.size(), kCFStringEncodingUTF8, NULL);
                if (!targetURL) {
                    return result; // URL creation problem, abort
                }

                QCFType<CFErrorRef> pacError;
                QCFType<CFArrayRef> proxies = CFNetworkCopyProxiesForAutoConfigurationScript(pacScript, targetURL, &pacError);
                if (!proxies) {
                    QString pacLocation = QCFString::toQString(cfPacLocation);
                    QCFType<CFStringRef> pacErrorDescription = CFErrorCopyDescription(pacError);
                    qWarning("Execution of PAC script at \"%s\" failed: %s", qPrintable(pacLocation), qPrintable(QCFString::toQString(pacErrorDescription)));
                    return result;
                }

                CFIndex size = CFArrayGetCount(proxies);
                for (CFIndex i = 0; i < size; ++i) {
                    CFDictionaryRef proxy = (CFDictionaryRef)CFArrayGetValueAtIndex(proxies, i);
                    result << proxyFromDictionary(proxy);
                }
                return result;
            } else
#endif
            {
                QString pacLocation = QCFString::toQString(cfPacLocation);
                qWarning("Mac system proxy: PAC script at \"%s\" not handled", qPrintable(pacLocation));
            }
        }
    }

    // no PAC, decide which proxy we're looking for based on the query
    bool isHttps = false;
    QString protocol = query.protocolTag().toLower();

    // try the protocol-specific proxy
    QNetworkProxy protocolSpecificProxy;
    if (protocol == QLatin1String("ftp")) {
        protocolSpecificProxy =
            proxyFromDictionary(dict, QNetworkProxy::FtpCachingProxy,
                                kSCPropNetProxiesFTPEnable,
                                kSCPropNetProxiesFTPProxy,
                                kSCPropNetProxiesFTPPort);
    } else if (protocol == QLatin1String("http")) {
        protocolSpecificProxy =
            proxyFromDictionary(dict, QNetworkProxy::HttpProxy,
                                kSCPropNetProxiesHTTPEnable,
                                kSCPropNetProxiesHTTPProxy,
                                kSCPropNetProxiesHTTPPort);
    } else if (protocol == QLatin1String("https")) {
        isHttps = true;
        protocolSpecificProxy =
            proxyFromDictionary(dict, QNetworkProxy::HttpProxy,
                                kSCPropNetProxiesHTTPSEnable,
//.........这里部分代码省略.........

void MainWindow::on_connectBtn_clicked()
{
    VpnInfo *vpninfo = NULL;
    StoredServer *ss = new StoredServer(this->settings);
    QFuture < void >future;
    QString name, str, url;
    QList < QNetworkProxy > proxies;
    QUrl turl;
    QNetworkProxyQuery query;

    if (ui->connectBtn->isEnabled() == false) {
        return;
    }

    if (this->cmd_fd != INVALID_SOCKET) {
        QMessageBox::information(this,
                                 tr(APP_NAME),
                                 tr
                                 ("A previous VPN instance is still running (socket is active)"));
        return;
    }

    if (this->futureWatcher.isRunning() == true) {
        QMessageBox::information(this,
                                 tr(APP_NAME),
                                 tr
                                 ("A previous VPN instance is still running"));
        return;
    }

    if (ui->comboBox->currentText().isEmpty()) {
        QMessageBox::information(this,
                                 tr(APP_NAME),
                                 tr
                                 ("You need to specify a gateway. E.g. vpn.example.com:443"));
        return;
    }

    name = ui->comboBox->currentText();
    ss->load(name);
    turl.setUrl("https://" + ss->get_servername());
    query.setUrl(turl);

    /* ss is now deallocated by vpninfo */
    vpninfo = new VpnInfo(tr(APP_STRING), ss, this);
    if (vpninfo == NULL) {
        QMessageBox::information(this,
                                 tr(APP_NAME),
                                 tr
                                 ("There was an issue initializing the VPN."));
        goto fail;
    }

    this->minimize_on_connect = vpninfo->get_minimize();

    vpninfo->parse_url(ss->get_servername().toLocal8Bit().data());

    this->cmd_fd = vpninfo->get_cmd_fd();
    if (this->cmd_fd == INVALID_SOCKET) {
        QMessageBox::information(this,
                                 tr(APP_NAME),
                                 tr
                                 ("There was an issue establishing IPC with openconnect; try restarting the application."));
        goto fail;
    }

    proxies = QNetworkProxyFactory::systemProxyForQuery(query);
    if (proxies.size() > 0 && proxies.at(0).type() != QNetworkProxy::NoProxy) {
        if (proxies.at(0).type() == QNetworkProxy::Socks5Proxy)
            url = "socks5://";
        else if (proxies.at(0).type() == QNetworkProxy::HttpCachingProxy
                 || proxies.at(0).type() == QNetworkProxy::HttpProxy)
            url = "http://";

        if (url.isEmpty() == false) {

            str =
                proxies.at(0).user() + ":" + proxies.at(0).password() + "@" +
                proxies.at(0).hostName();
            if (proxies.at(0).port() != 0) {
                str += ":" + QString::number(proxies.at(0).port());
            }
            this->updateProgressBar(tr("Setting proxy to: ") + str);
            openconnect_set_http_proxy(vpninfo->vpninfo, str.toAscii().data());
        }
    }

    future = QtConcurrent::run(main_loop, vpninfo, this);

    this->futureWatcher.setFuture(future);

    return;
 fail:
    if (vpninfo != NULL)
        delete vpninfo;
    return;
}