OSDN Git Service

Updated the UpdateChecker class to use cURL instead of Wget.
[mutilities/MUtilities.git] / src / UpdateChecker.cpp
index 81d9fd0..734d91b 100644 (file)
@@ -1,6 +1,6 @@
 ///////////////////////////////////////////////////////////////////////////////
 // MuldeR's Utilities for Qt
-// Copyright (C) 2004-2017 LoRd_MuldeR <MuldeR2@GMX.de>
+// Copyright (C) 2004-2018 LoRd_MuldeR <MuldeR2@GMX.de>
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
 #include <QStringList>
 #include <QFile>
 #include <QFileInfo>
+#include <QDir>
 #include <QProcess>
 #include <QUrl>
 #include <QEventLoop>
 #include <QTimer>
+#include <QElapsedTimer>
+#include <QSet>
+#include <QHash>
 
-using namespace MUtils;
+#include "Mirrors.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 // CONSTANTS
@@ -47,160 +51,26 @@ static const char *mirror_url_postfix[] =
        NULL
 };
 
-static const char *update_mirrors[] =
-{
-       "http://muldersoft.com/",
-       "http://mulder.bplaced.net/",
-       "http://mulder.6te.net/",
-       "http://mulder.webuda.com/",
-       "http://mulder.pe.hu/",
-       "http://muldersoft.square7.ch/",
-       "http://muldersoft.co.nf/",
-       "http://muldersoft.eu.pn/",
-       "http://muldersoft.lima-city.de/",
-       "http://www.muldersoft.keepfree.de/",
-       "http://lamexp.sourceforge.net/",
-       "http://lordmulder.github.io/LameXP/",
-       "http://muldersoft.bitbucket.io/",      //http://lord_mulder.bitbucket.org/
-       "http://www.tricksoft.de/",
-       "http://repo.or.cz/LameXP.git/blob_plain/gh-pages:/",
-       "http://gitlab.com/lamexp/lamexp/raw/gh-pages/",
-       NULL
-};
-
-static const char *known_hosts[] =             //Taken form: http://www.alexa.com/topsites !!!
-{
-       "www.163.com",
-       "www.7-zip.org",
-       "www.ac3filter.net",
-       "clbianco.altervista.org",
-       "status.aws.amazon.com",
-       "build.antergos.com",
-       "www.aol.com",
-       "www.apache.org",
-       "www.apple.com",
-       "www.adobe.com",
-       "archive.org",
-       "www.artlebedev.ru",
-       "web.audacityteam.org",
-       "status.automattic.com",
-       "www.avidemux.org",
-       "www.babylon.com",
-       "www.baidu.com",
-       "bandcamp.com",
-       "www.bbc.co.uk",
-       "www.berlios.de",
-       "www.bing.com",
-       "www.bingeandgrab.com",
-       "www.bucketheadpikes.com",
-       "www.buckethead-coop.com",
-       "www.buzzfeed.com",
-       "www.ccc.de",
-       "www.citizeninsomniac.com",
-       "www.cnet.com",
-       "cnzz.com",
-       "www.codeplex.com",
-       "www.codeproject.com",
-       "www.der-postillon.com",
-       "www.ebay.com",
-       "www.equation.com",
-       "www.farbrausch.de",
-       "fc2.com",
-       "fedoraproject.org",
-       "blog.fefe.de",
-       "www.ffmpeg.org",
-       "blog.flickr.net",
-       "free-codecs.com",
-       "git-scm.com",
-       "doc.gitlab.com",
-       "www.gmx.net",
-       "news.gnome.org",
-       "www.gnu.org",
-       "go.com",
-       "code.google.com",
-       "haali.su",
-       "www.heise.de",
-       "www.huffingtonpost.co.uk",
-       "www.iana.org",
-       "www.imdb.com",
-       "www.imgburn.com",
-       "imgur.com",
-       "www.jd.com",
-       "www.jiscdigitalmedia.ac.uk",
-       "kannmanumdieuhrzeitschonnbierchentrinken.de",
-       "mirrors.kernel.org",
-       "komisar.gin.by",
-       "lame.sourceforge.net",
-       "www.libav.org",
-       "blog.linkedin.com",
-       "www.linuxmint.com",
-       "www.livedoor.com",
-       "www.livejournal.com",
-       "longplayer.org",
-       "go.mail.ru",
-       "marknelson.us",
-       "www.mediafire.com",
-       "www.mod-technologies.com",
-       "ftp.mozilla.org",
-       "mplayerhq.hu",
-       "www.msn.com",
-       "wiki.multimedia.cx",
-       "www.nch.com.au",
-       "mirror.netcologne.de",
-       "oss.netfarm.it",
-       "blog.netflix.com",
-       "netrenderer.de",
-       "www.nytimes.com",
-       "www.opera.com",
-       "www.partha.com",
-       "pastebin.com",
-       "pastie.org",
-       "portableapps.com",
-       "www.portablefreeware.com",
-       "support.proboards.com",
-       "www.qq.com",
-       "www.qt.io",
-       "www.quakelive.com",
-       "rationalqm.us",
-       "www.seamonkey-project.org",
-       "selfhtml.org",
-       "www.sina.com.cn",
-       "www.sohu.com",
-       "help.sogou.com",
-       "sourceforge.net",
-       "www.spiegel.de",
-       "www.sputnikmusic.com",
-       "stackoverflow.com",
-       "www.t-online.de",
-       "www.tagesschau.de",
-       "tdm-gcc.tdragon.net",
-       "www.tdrsmusic.com",
-       "www.ubuntu.com",
-       "www.uol.com.br",
-       "www.videohelp.com",
-       "www.videolan.org",
-       "virtualdub.org",
-       "blog.virustotal.com",
-       "www.vkgoeswild.com",
-       "www.warr.org",
-       "www.weibo.com",
-       "status.wikimedia.org",
-       "www.winamp.com",
-       "www.winhoros.de",
-       "wpde.org",
-       "x265.org",
-       "xhmikosr.1f0.de",
-       "xiph.org",
-       "us.mail.yahoo.com",
-       "www.youtube.com",
-       "www.zedo.com",
-       "ffmpeg.zeranoe.com",
-       NULL
-};
-
 static const int MIN_CONNSCORE = 5;
+static const int QUICK_MIRRORS = 3;
+static const int MAX_CONN_TIMEOUT = 16000;
+static const int DOWNLOAD_TIMEOUT = 30000;
+
 static const int VERSION_INFO_EXPIRES_MONTHS = 6;
-static char *USER_AGENT_STR = "Mozilla/5.0 (X11; Linux i686; rv:10.0) Gecko/20100101 Firefox/10.0"; /*use something innocuous*/
+static char *USER_AGENT_STR = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0"; /*use something innocuous*/
+
+#define CHECK_CANCELLED() do \
+{ \
+       if(MUTILS_BOOLIFY(m_cancelled)) \
+       { \
+               m_success.fetchAndStoreOrdered(0); \
+               log("", "Update check has been cancelled by user!"); \
+               setProgress(m_maxProgress); \
+               setStatus(UpdateStatus_CancelledByUser); \
+               return; \
+       } \
+} \
+while(0)
 
 ////////////////////////////////////////////////////////////
 // Helper Functions
@@ -208,9 +78,13 @@ static char *USER_AGENT_STR = "Mozilla/5.0 (X11; Linux i686; rv:10.0) Gecko/2010
 
 static int getMaxProgress(void)
 {
-       int counter = MIN_CONNSCORE + 2;
-       for(int i = 0; update_mirrors[i]; i++) counter++;
-       return counter;
+       int counter = 0;
+       while (update_mirrors[counter])
+       {
+               counter++;
+       }
+       counter += MIN_CONNSCORE + QUICK_MIRRORS + 2;
+       return counter; ;
 }
 
 static QStringList buildRandomList(const char *const values[])
@@ -218,22 +92,29 @@ static QStringList buildRandomList(const char *const values[])
        QStringList list;
        for (int index = 0; values[index]; index++)
        {
-               const int pos = next_rand_u32() % (index + 1);
+               const int pos = MUtils::next_rand_u32() % (index + 1);
                list.insert(pos, QString::fromLatin1(values[index]));
        }
        return list;
 }
 
+static const QHash<QString, QString> *initEnvVars(void)
+{
+       QHash<QString, QString> *const environment = new QHash<QString, QString>();
+       environment->insert(QLatin1String("CURL_HOME"), QDir::toNativeSeparators(MUtils::temp_folder()));
+       return environment;
+}
+
 ////////////////////////////////////////////////////////////
 // Update Info Class
 ////////////////////////////////////////////////////////////
 
-UpdateCheckerInfo::UpdateCheckerInfo(void)
+MUtils::UpdateCheckerInfo::UpdateCheckerInfo(void)
 {
        resetInfo();
 }
        
-void UpdateCheckerInfo::resetInfo(void)
+void MUtils::UpdateCheckerInfo::resetInfo(void)
 {
        m_buildNo = 0;
        m_buildDate.setDate(1900, 1, 1);
@@ -244,7 +125,7 @@ void UpdateCheckerInfo::resetInfo(void)
        m_downloadChecksum.clear();
 }
 
-bool UpdateCheckerInfo::isComplete(void)
+bool MUtils::UpdateCheckerInfo::isComplete(void)
 {
        if(this->m_buildNo < 1)                return false;
        if(this->m_buildDate.year() < 2010)    return false;
@@ -261,49 +142,58 @@ bool UpdateCheckerInfo::isComplete(void)
 // Constructor & Destructor
 ////////////////////////////////////////////////////////////
 
-UpdateChecker::UpdateChecker(const QString &binWGet, const QString &binNC, const QString &binGnuPG, const QString &binKeys, const QString &applicationId, const quint32 &installedBuildNo, const bool betaUpdates, const bool testMode)
+MUtils::UpdateChecker::UpdateChecker(const QString &binCurl, const QString &binGnuPG, const QString &binKeys, const QString &applicationId, const quint32 &installedBuildNo, const bool betaUpdates, const bool testMode)
 :
        m_updateInfo(new UpdateCheckerInfo()),
-       m_binaryWGet(binWGet),
-       m_binaryNC(binNC),
+       m_binaryCurl(binCurl),
        m_binaryGnuPG(binGnuPG),
        m_binaryKeys(binKeys),
        m_applicationId(applicationId),
        m_installedBuildNo(installedBuildNo),
        m_betaUpdates(betaUpdates),
        m_testMode(testMode),
-       m_maxProgress(getMaxProgress())
+       m_maxProgress(getMaxProgress()),
+       m_environment(initEnvVars())
 {
-       m_success = false;
        m_status = UpdateStatus_NotStartedYet;
        m_progress = 0;
 
-       if(m_binaryWGet.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
+       if(m_binaryCurl.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
        {
                MUTILS_THROW("Tools not initialized correctly!");
        }
 }
 
-UpdateChecker::~UpdateChecker(void)
+MUtils::UpdateChecker::~UpdateChecker(void)
 {
 }
 
 ////////////////////////////////////////////////////////////
+// Public slots
+////////////////////////////////////////////////////////////
+
+void MUtils::UpdateChecker::start(Priority priority)
+{
+       m_success.fetchAndStoreOrdered(0);
+       m_cancelled.fetchAndStoreOrdered(0);
+       QThread::start(priority);
+}
+
+////////////////////////////////////////////////////////////
 // Protected functions
 ////////////////////////////////////////////////////////////
 
-void UpdateChecker::run(void)
+void MUtils::UpdateChecker::run(void)
 {
        qDebug("Update checker thread started!");
-       MUTILS_EXCEPTION_HANDLER(m_testMode ? testKnownHosts() : checkForUpdates());
+       MUTILS_EXCEPTION_HANDLER(m_testMode ? testMirrorsList() : checkForUpdates());
        qDebug("Update checker thread completed.");
 }
 
-void UpdateChecker::checkForUpdates(void)
+void MUtils::UpdateChecker::checkForUpdates(void)
 {
        // ----- Initialization ----- //
 
-       m_success = false;
        m_updateInfo->resetInfo();
        setProgress(0);
 
@@ -325,21 +215,37 @@ void UpdateChecker::checkForUpdates(void)
 
        // ----- Test Known Hosts Connectivity ----- //
 
-       int connectionScore = 0, connectionRetry = MIN_CONNSCORE;
+       int connectionScore = 0;
+       QStringList mirrorList = buildRandomList(known_hosts);
 
-       QStringList hostList = buildRandomList(known_hosts);
-       while((!hostList.isEmpty()) && (connectionScore < MIN_CONNSCORE) && (connectionRetry > 0))
+       for(int connectionTimout = 1000; connectionTimout <= MAX_CONN_TIMEOUT; connectionTimout *= 2)
        {
-               connectionRetry--;
-               if(tryContactHost(hostList.takeFirst()))
+               QElapsedTimer elapsedTimer;
+               elapsedTimer.start();
+               const int globalTimout = 2 * MIN_CONNSCORE * connectionTimout;
+               while (!elapsedTimer.hasExpired(globalTimout))
                {
-                       connectionScore += 1;
-                       connectionRetry = MIN_CONNSCORE;
+                       const QString hostName = mirrorList.takeFirst();
+                       if (tryContactHost(hostName, connectionTimout))
+                       {
+                               connectionScore += 1;
+                               setProgress(qBound(1, connectionScore + 1, MIN_CONNSCORE + 1));
+                               elapsedTimer.restart();
+                               if (connectionScore >= MIN_CONNSCORE)
+                               {
+                                       goto endLoop; /*success*/
+                               }
+                       }
+                       else
+                       {
+                               mirrorList.append(hostName); /*re-schedule*/
+                       }
+                       CHECK_CANCELLED();
+                       msleep(1);
                }
-               setProgress(qBound(1, connectionScore + 1, MIN_CONNSCORE + 1));
-               msleep(25);
        }
 
+endLoop:
        if(connectionScore < MIN_CONNSCORE)
        {
                log("", "Connectivity test has failed: Internet connection appears to be broken!");
@@ -353,27 +259,37 @@ void UpdateChecker::checkForUpdates(void)
        log("----", "", "Checking for updates online...");
        setStatus(UpdateStatus_FetchingUpdates);
 
-       QStringList mirrorList = buildRandomList(update_mirrors);
+       int mirrorCount = 0;
+       mirrorList = buildRandomList(update_mirrors);
+
        while(!mirrorList.isEmpty())
        {
-               QString currentMirror = mirrorList.takeFirst();
                setProgress(m_progress + 1);
-               if(!m_success)
+               const QString currentMirror = mirrorList.takeFirst();
+               const bool isQuick = (mirrorCount++ < QUICK_MIRRORS);
+               if(tryUpdateMirror(m_updateInfo.data(), currentMirror, isQuick))
                {
-                       if(tryUpdateMirror(m_updateInfo.data(), currentMirror))
-                       {
-                               m_success = true;
-                       }
+                       m_success.ref(); /*success*/
+                       break;
                }
-               else
+               if (isQuick)
                {
-                       msleep(25);
+                       mirrorList.append(currentMirror); /*re-schedule*/
                }
+               CHECK_CANCELLED();
+               msleep(1);
        }
        
-       setProgress(m_maxProgress);
+       while (m_progress < m_maxProgress)
+       {
+               msleep(16);
+               setProgress(m_progress + 1);
+               CHECK_CANCELLED();
+       }
 
-       if(m_success)
+       // ----- Generate final result ----- //
+
+       if(MUTILS_BOOLIFY(m_success))
        {
                if(m_updateInfo->m_buildNo > m_installedBuildNo)
                {
@@ -394,26 +310,61 @@ void UpdateChecker::checkForUpdates(void)
        }
 }
 
-void UpdateChecker::testKnownHosts(void)
+void MUtils::UpdateChecker::testMirrorsList(void)
 {
-       QStringList hostList;
-       for(int i = 0; known_hosts[i]; i++)
+       // ----- Test update mirrors ----- //
+
+       QStringList mirrorList;
+       for(int i = 0; update_mirrors[i]; i++)
+       {
+               mirrorList << QString::fromLatin1(update_mirrors[i]);
+       }
+
+       qDebug("\n[Mirror Sites]");
+       log("Testing all known mirror sites...", "", "---");
+
+       UpdateCheckerInfo updateInfo;
+       while (!mirrorList.isEmpty())
+       {
+               const QString currentMirror = mirrorList.takeFirst();
+               bool success = false;
+               qDebug("Testing: %s", MUTILS_L1STR(currentMirror));
+               log("", "Testing:", currentMirror, "");
+               for (quint8 attempt = 0; attempt < 3; ++attempt)
+               {
+                       updateInfo.resetInfo();
+                       if (tryUpdateMirror(&updateInfo, currentMirror, (!attempt)))
+                       {
+                               success = true;
+                               break;
+                       }
+               }
+               if (!success)
+               {
+                       qWarning("\nUpdate mirror seems to be unavailable:\n%s\n", MUTILS_L1STR(currentMirror));
+               }
+               log("", "---");
+       }
+
+       // ----- Test known hosts ----- //
+
+       QStringList knownHostList;
+       for (int i = 0; known_hosts[i]; i++)
        {
-               hostList << QString::fromLatin1(known_hosts[i]);
+               knownHostList << QString::fromLatin1(known_hosts[i]);
        }
 
        qDebug("\n[Known Hosts]");
        log("Testing all known hosts...", "", "---");
 
-       int hostCount = hostList.count();
-       while(!hostList.isEmpty())
+       while(!knownHostList.isEmpty())
        {
-               QString currentHost = hostList.takeFirst();
-               qDebug("Testing: %s", currentHost.toLatin1().constData());
-               log("", "Testing:", currentHost, "");
-               if (!tryContactHost(currentHost))
+               const QString currentHost = knownHostList.takeFirst();
+               qDebug("Testing: %s", MUTILS_L1STR(currentHost));
+               log(QLatin1String(""), "Testing:", currentHost, "");
+               if (!tryContactHost(currentHost, DOWNLOAD_TIMEOUT))
                {
-                       qWarning("\nConnectivity test FAILED on the following host:\n%s\n", currentHost.toLatin1().constData());
+                       qWarning("\nConnectivity test FAILED on the following host:\n%s\n", MUTILS_L1STR(currentHost));
                }
                log("", "---");
        }
@@ -423,7 +374,7 @@ void UpdateChecker::testKnownHosts(void)
 // PRIVATE FUNCTIONS
 ////////////////////////////////////////////////////////////
 
-void UpdateChecker::setStatus(const int status)
+void MUtils::UpdateChecker::setStatus(const int status)
 {
        if(m_status != status)
        {
@@ -432,7 +383,7 @@ void UpdateChecker::setStatus(const int status)
        }
 }
 
-void UpdateChecker::setProgress(const int progress)
+void MUtils::UpdateChecker::setProgress(const int progress)
 {
        if(m_progress != progress)
        {
@@ -441,7 +392,7 @@ void UpdateChecker::setProgress(const int progress)
        }
 }
 
-void UpdateChecker::log(const QString &str1, const QString &str2, const QString &str3, const QString &str4)
+void MUtils::UpdateChecker::log(const QString &str1, const QString &str2, const QString &str3, const QString &str4)
 {
        if(!str1.isNull()) emit messageLogged(str1);
        if(!str2.isNull()) emit messageLogged(str2);
@@ -449,21 +400,30 @@ void UpdateChecker::log(const QString &str1, const QString &str2, const QString
        if(!str4.isNull()) emit messageLogged(str4);
 }
 
-bool UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString &url)
+bool MUtils::UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString &url, const bool &quick)
 {
        bool success = false;
-       log("", "Trying mirror:", url);
+       log("", "Trying mirror:", url, "");
+
+       if (quick)
+       {
+               if (!tryContactHost(QUrl(url).host(), (MAX_CONN_TIMEOUT / 10)))
+               {
+                       log("", "Mirror is too slow, skipping!");
+                       return false;
+               }
+       }
 
        const QString randPart = next_rand_str();
        const QString outFileVers = QString("%1/%2.ver").arg(temp_folder(), randPart);
        const QString outFileSign = QString("%1/%2.sig").arg(temp_folder(), randPart);
 
-       if(getUpdateInfo(url, outFileVers, outFileSign))
+       if (getUpdateInfo(url, outFileVers, outFileSign))
        {
                log("", "Download okay, checking signature:");
-               if(checkSignature(outFileVers, outFileSign))
+               if (checkSignature(outFileVers, outFileSign))
                {
-                       log("", "Signature okay, parsing info:");
+                       log("", "Signature okay, parsing info:", "");
                        success = parseVersionInfo(outFileVers, updateInfo);
                }
                else
@@ -482,24 +442,24 @@ bool UpdateChecker::tryUpdateMirror(UpdateCheckerInfo *updateInfo, const QString
        return success;
 }
 
-bool UpdateChecker::getUpdateInfo(const QString &url, const QString &outFileVers, const QString &outFileSign)
+bool MUtils::UpdateChecker::getUpdateInfo(const QString &url, const QString &outFileVers, const QString &outFileSign)
 {
-       log("", "Downloading update info:");
-       if(!getFile(QString("%1%2"     ).arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileVers))
-       {
-               return false;
-       }
-
-       log("", "Downloading signature:");
-       if(!getFile(QString("%1%2.sig2").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileSign))
+       log("Downloading update info:", "");
+       if(getFile(QString("%1%2").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileVers))
        {
-               return false;
+               if (!m_cancelled)
+               {
+                       log("", "Downloading signature:", "");
+                       if (getFile(QString("%1%2.sig2").arg(url, mirror_url_postfix[m_betaUpdates ? 1 : 0]), outFileSign))
+                       {
+                               return true;
+                       }
+               }
        }
-
-       return true;
+       return false;
 }
 
-bool UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *updateInfo)
+bool MUtils::UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *updateInfo)
 {
        QRegExp value("^(\\w+)=(.+)$");
        QRegExp section("^\\[(.+)\\]$");
@@ -606,23 +566,10 @@ bool UpdateChecker::parseVersionInfo(const QString &file, UpdateCheckerInfo *upd
 // EXTERNAL TOOLS
 //----------------------------------------------------------
 
-bool UpdateChecker::getFile(const QString &url, const QString &outFile, const unsigned int maxRedir, bool *httpOk)
-{
-       for (int i = 0; i < 2; i++)
-       {
-               if (getFile(url, (i > 0), outFile, maxRedir, httpOk))
-               {
-                       return true;
-               }
-       }
-       return false;
-}
-
-bool UpdateChecker::getFile(const QString &url, const bool forceIp4, const QString &outFile, const unsigned int maxRedir, bool *httpOk)
+bool MUtils::UpdateChecker::getFile(const QString &url, const QString &outFile, const unsigned int maxRedir)
 {
        QFileInfo output(outFile);
        output.setCaching(false);
-       if (httpOk) *httpOk = false;
 
        if (output.exists())
        {
@@ -634,18 +581,13 @@ bool UpdateChecker::getFile(const QString &url, const bool forceIp4, const QStri
        }
 
        QProcess process;
-       init_process(process, output.absolutePath());
-
-       QStringList args;
-       if (forceIp4)
-       {
-               args << "-4";
-       }
+       init_process(process, output.absolutePath(), true, NULL, m_environment.data());
 
-       args << "--no-config" << "--no-cache" << "--no-dns-cache" << "--no-check-certificate" << "--no-hsts";
-       args << QString().sprintf("--max-redirect=%u", maxRedir) << "--timeout=15";
-       args << QString("--referer=%1://%2/").arg(QUrl(url).scheme(), QUrl(url).host()) << "-U" << USER_AGENT_STR;
-       args << "-O" << output.fileName() << url;
+       QStringList args(QLatin1String("-vsSqkfL"));
+       args << "-m" << QString::number(DOWNLOAD_TIMEOUT / 1000);
+       args << "--max-redirs" << QString::number(maxRedir);
+       args << "-U" << USER_AGENT_STR;
+       args << "-o" << output.fileName() << url;
 
        QEventLoop loop;
        connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
@@ -656,16 +598,13 @@ bool UpdateChecker::getFile(const QString &url, const bool forceIp4, const QStri
        timer.setSingleShot(true);
        connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
 
-       const QRegExp httpResponseOK("200 OK$");
-
-       process.start(m_binaryWGet, args);
-
+       process.start(m_binaryCurl, args);
        if (!process.waitForStarted())
        {
                return false;
        }
 
-       timer.start(25000);
+       timer.start(2 * DOWNLOAD_TIMEOUT);
 
        while (process.state() != QProcess::NotRunning)
        {
@@ -673,20 +612,18 @@ bool UpdateChecker::getFile(const QString &url, const bool forceIp4, const QStri
                const bool bTimeOut = (!timer.isActive());
                while (process.canReadLine())
                {
-                       QString line = QString::fromLatin1(process.readLine()).simplified();
-                       if (line.contains(httpResponseOK))
+                       const QString line = QString::fromLatin1(process.readLine()).simplified();
+                       if (!line.isEmpty())
                        {
-                               line.append(" [OK]");
-                               if (httpOk) *httpOk = true;
+                               log(line);
                        }
-                       log(line);
                }
-               if (bTimeOut)
+               if (bTimeOut || MUTILS_BOOLIFY(m_cancelled))
                {
-                       qWarning("WGet process timed out <-- killing!");
+                       qWarning("cURL process timed out <-- killing!");
                        process.kill();
                        process.waitForFinished();
-                       log("!!! TIMEOUT !!!");
+                       log(bTimeOut ? "PROCESS TIMEOUT !!!" : "CANCELLED BY USER !!!", "");
                        return false;
                }
        }
@@ -698,16 +635,18 @@ bool UpdateChecker::getFile(const QString &url, const bool forceIp4, const QStri
        return (process.exitCode() == 0) && output.exists() && output.isFile();
 }
 
-bool UpdateChecker::tryContactHost(const QString &hostname)
+bool MUtils::UpdateChecker::tryContactHost(const QString &hostname, const int &timeoutMsec)
 {
-       log(QString("Connecting to host: %1").arg(hostname));
+       log(QString("Connecting to host: %1").arg(hostname), "");
 
        QProcess process;
-       init_process(process, temp_folder());
-
-       QStringList args;
-       args << "-z" << hostname << QString::number(80);
+       init_process(process, temp_folder(), true, NULL, m_environment.data());
 
+       QStringList args(QLatin1String("-vsSqkI"));
+       args << "-m" << QString::number(qMax(timeoutMsec, 1000) / 1000);
+       args << "-U" << USER_AGENT_STR;
+       args << "-o" << OS::null_device() << QString("http://%1/").arg(hostname);
+       
        QEventLoop loop;
        connect(&process, SIGNAL(error(QProcess::ProcessError)), &loop, SLOT(quit()));
        connect(&process, SIGNAL(finished(int, QProcess::ExitStatus)), &loop, SLOT(quit()));
@@ -716,15 +655,14 @@ bool UpdateChecker::tryContactHost(const QString &hostname)
        QTimer timer;
        timer.setSingleShot(true);
        connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
-
-       process.start(m_binaryNC, args);
-
+       
+       process.start(m_binaryCurl, args);
        if (!process.waitForStarted())
        {
                return false;
        }
 
-       timer.start(10000);
+       timer.start(2 * qMax(timeoutMsec, 1000));
 
        while (process.state() != QProcess::NotRunning)
        {
@@ -732,15 +670,18 @@ bool UpdateChecker::tryContactHost(const QString &hostname)
                const bool bTimeOut = (!timer.isActive());
                while (process.canReadLine())
                {
-                       QString line = QString::fromLatin1(process.readLine()).simplified();
-                       log(line);
+                       const QString line = QString::fromLatin1(process.readLine()).simplified();
+                       if (!line.isEmpty())
+                       {
+                               log(line);
+                       }
                }
-               if (bTimeOut)
+               if (bTimeOut || MUTILS_BOOLIFY(m_cancelled))
                {
-                       qWarning("NC process timed out <-- killing!");
+                       qWarning("cURL process timed out <-- killing!");
                        process.kill();
                        process.waitForFinished();
-                       log("!!! TIMEOUT !!!");
+                       log(bTimeOut ? "PROCESS TIMEOUT !!!" : "CANCELLED BY USER !!!", "");
                        return false;
                }
        }
@@ -757,7 +698,7 @@ bool UpdateChecker::tryContactHost(const QString &hostname)
        return (process.exitCode() == 0);
 }
 
-bool UpdateChecker::checkSignature(const QString &file, const QString &signature)
+bool MUtils::UpdateChecker::checkSignature(const QString &file, const QString &signature)
 {
        if (QFileInfo(file).absolutePath().compare(QFileInfo(signature).absolutePath(), Qt::CaseInsensitive) != 0)
        {
@@ -802,7 +743,11 @@ bool UpdateChecker::checkSignature(const QString &file, const QString &signature
                loop.exec();
                while (process.canReadLine())
                {
-                       log(QString::fromLatin1(process.readLine()).simplified());
+                       const QString line = QString::fromLatin1(process.readLine()).simplified();
+                       if (!line.isEmpty())
+                       {
+                               log(line);
+                       }
                }
        }