Reworking update checks to use the file update info with a fallback

1 files changed, 1831 insertions, 1842 deletions

diff --git a/src/downloadmanager.cpp b/src/downloadmanager.cpp
index c927695e..8f36b9cf 100644
--- a/src/downloadmanager.cpp
+++ b/src/downloadmanager.cpp
@@ -1,1842 +1,1831 @@
-/*

-Copyright (C) 2012 Sebastian Herbord. All rights reserved.

-

-This file is part of Mod Organizer.

-

-Mod Organizer 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 3 of the License, or

-(at your option) any later version.

-

-Mod Organizer 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 Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.

-*/

-

-#include "downloadmanager.h"

-

-#include "nxmurl.h"

-#include "nexusinterface.h"

-#include "nxmaccessmanager.h"

-#include "iplugingame.h"

-#include "downloadmanager.h"

-#include <nxmurl.h>

-#include <taskprogressmanager.h>

-#include "utility.h"

-#include "selectiondialog.h"

-#include "bbcode.h"

-#include <utility.h>

-#include <report.h>

-

-#include <QTimer>

-#include <QFileInfo>

-#include <QRegExp>

-#include <QDirIterator>

-#include <QDesktopServices>

-#include <QInputDialog>

-#include <QMessageBox>

-#include <QCoreApplication>

-#include <QTextDocument>

-

-#include <boost/bind.hpp>

-#include <regex>

-

-

-using namespace MOBase;

-

-

-// TODO limit number of downloads, also display download during nxm requests, store modid/fileid with downloads

-

-

-static const char UNFINISHED[] = ".unfinished";

-

-unsigned int DownloadManager::DownloadInfo::s_NextDownloadID = 1U;

-int DownloadManager::m_DirWatcherDisabler = 0;

-

-

-DownloadManager::DownloadInfo *DownloadManager::DownloadInfo::createNew(const ModRepositoryFileInfo *fileInfo, const QStringList &URLs)

-{

-  DownloadInfo *info = new DownloadInfo;

-  info->m_DownloadID = s_NextDownloadID++;

-  info->m_StartTime.start();

-  info->m_PreResumeSize = 0LL;

-  info->m_Progress = std::make_pair<int, QString>(0, "0.0 B/s ");

-  info->m_ResumePos = 0;

-  info->m_FileInfo = new ModRepositoryFileInfo(*fileInfo);

-  info->m_Urls = URLs;

-  info->m_CurrentUrl = 0;

-  info->m_Tries = AUTOMATIC_RETRIES;

-  info->m_State = STATE_STARTED;

-  info->m_TaskProgressId = TaskProgressManager::instance().getId();

-  info->m_Reply = nullptr;

-

-  return info;

-}

-

-DownloadManager::DownloadInfo *DownloadManager::DownloadInfo::createFromMeta(const QString &filePath, bool showHidden, const QString outputDirectory)

-{

-  DownloadInfo *info = new DownloadInfo;

-

-  QString metaFileName = filePath + ".meta";

-  QFileInfo metaFileInfo(metaFileName);

-  if (QDir::fromNativeSeparators(metaFileInfo.path()).compare(QDir::fromNativeSeparators(outputDirectory), Qt::CaseInsensitive) != 0) return nullptr;

-  QSettings metaFile(metaFileName, QSettings::IniFormat);

-  if (!showHidden && metaFile.value("removed", false).toBool()) {

-    return nullptr;

-  } else {

-    info->m_Hidden = metaFile.value("removed", false).toBool();

-  }

-

-  QString fileName = QFileInfo(filePath).fileName();

-

-  if (fileName.endsWith(UNFINISHED)) {

-    info->m_FileName = fileName.mid(

-        0, fileName.length() - static_cast<int>(strlen(UNFINISHED)));

-    info->m_State = STATE_PAUSED;

-  } else {

-    info->m_FileName = fileName;

-

-    if (metaFile.value("paused", false).toBool()) {

-      info->m_State = STATE_PAUSED;

-    } else if (metaFile.value("uninstalled", false).toBool()) {

-      info->m_State = STATE_UNINSTALLED;

-    } else if (metaFile.value("installed", false).toBool()) {

-      info->m_State = STATE_INSTALLED;

-    } else {

-      info->m_State = STATE_READY;

-    }

-  }

-

-  info->m_DownloadID = s_NextDownloadID++;

-  info->m_Output.setFileName(filePath);

-  info->m_TotalSize = QFileInfo(filePath).size();

-  info->m_PreResumeSize = info->m_TotalSize;

-  info->m_CurrentUrl = 0;

-  info->m_Urls = metaFile.value("url", "").toString().split(";");

-  info->m_Tries = 0;

-  info->m_TaskProgressId = TaskProgressManager::instance().getId();

-  QString gameName = metaFile.value("gameName", "").toString();

-  int modID = metaFile.value("modID", 0).toInt();

-  int fileID = metaFile.value("fileID", 0).toInt();

-  info->m_FileInfo = new ModRepositoryFileInfo(gameName, modID, fileID);

-  info->m_FileInfo->name     = metaFile.value("name", "").toString();

-  if (info->m_FileInfo->name == "0") {

-    // bug in earlier version

-    info->m_FileInfo->name = "";

-  }

-  info->m_FileInfo->modName  = metaFile.value("modName", "").toString();

-  info->m_FileInfo->gameName = gameName;

-  info->m_FileInfo->modID  = modID;

-  info->m_FileInfo->fileID = fileID;

-  info->m_FileInfo->description = metaFile.value("description").toString();

-  info->m_FileInfo->version.parse(metaFile.value("version", "0").toString());

-  info->m_FileInfo->newestVersion.parse(metaFile.value("newestVersion", "0").toString());

-  info->m_FileInfo->categoryID = metaFile.value("category", 0).toInt();

-  info->m_FileInfo->fileCategory = metaFile.value("fileCategory", 0).toInt();

-  info->m_FileInfo->repository = metaFile.value("repository", "Nexus").toString();

-  info->m_FileInfo->userData = metaFile.value("userData").toMap();

-  info->m_Reply = nullptr;

-

-  return info;

-}

-

-void DownloadManager::startDisableDirWatcher()

-{

-	DownloadManager::m_DirWatcherDisabler++;

-}

-

-

-void DownloadManager::endDisableDirWatcher()

-{

-	if (DownloadManager::m_DirWatcherDisabler > 0)

-	{

-		if (DownloadManager::m_DirWatcherDisabler == 1)

-			QCoreApplication::processEvents();

-		DownloadManager::m_DirWatcherDisabler--;

-	}

-	else {

-		DownloadManager::m_DirWatcherDisabler = 0;

-	}

-}

-

-void DownloadManager::DownloadInfo::setName(QString newName, bool renameFile)

-{

-  QString oldMetaFileName = QString("%1.meta").arg(m_FileName);

-  m_FileName = QFileInfo(newName).fileName();

-  if ((m_State == DownloadManager::STATE_STARTED) ||

-      (m_State == DownloadManager::STATE_DOWNLOADING) ||

-      (m_State == DownloadManager::STATE_PAUSED)) {

-    newName.append(UNFINISHED);

-    oldMetaFileName = QString("%1%2.meta").arg(m_FileName).arg(UNFINISHED);

-  }

-  if (renameFile) {

-    if ((newName != m_Output.fileName()) && !m_Output.rename(newName)) {

-      reportError(tr("failed to rename \"%1\" to \"%2\"").arg(m_Output.fileName()).arg(newName));

-      return;

-    }

-

-    QFile metaFile(QFileInfo(newName).path() + "/" + oldMetaFileName);

-    if (metaFile.exists())

-      metaFile.rename(newName.mid(0).append(".meta"));

-  }

-  if (!m_Output.isOpen()) {

-    // can't set file name if it's open

-    m_Output.setFileName(newName);

-  }

-}

-

-bool DownloadManager::DownloadInfo::isPausedState()

-{

-  return m_State == STATE_PAUSED || m_State == STATE_ERROR;

-}

-

-QString DownloadManager::DownloadInfo::currentURL()

-{

-  return m_Urls[m_CurrentUrl];

-}

-

-

-DownloadManager::DownloadManager(NexusInterface *nexusInterface, QObject *parent)

-  : IDownloadManager(parent), m_NexusInterface(nexusInterface), m_DirWatcher(), m_ShowHidden(false),

-    m_DateExpression("/Date\\((\\d+)\\)/")

-{

-  connect(&m_DirWatcher, SIGNAL(directoryChanged(QString)), this, SLOT(directoryChanged(QString)));

-  m_TimeoutTimer.setSingleShot(false);

-  //connect(&m_TimeoutTimer, SIGNAL(timeout()), this, SLOT(checkDownloadTimeout()));

-  m_TimeoutTimer.start(5 * 1000);

-}

-

-

-DownloadManager::~DownloadManager()

-{

-  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter) {

-    delete *iter;

-  }

-  m_ActiveDownloads.clear();

-}

-

-

-bool DownloadManager::downloadsInProgress()

-{

-  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter) {

-    if ((*iter)->m_State < STATE_READY) {

-      return true;

-    }

-  }

-  return false;

-}

-

-bool DownloadManager::downloadsInProgressNoPause()

-{

-  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter) {

-    if ((*iter)->m_State < STATE_READY && (*iter)->m_State != STATE_PAUSED) {

-      return true;

-    }

-  }

-  return false;

-}

-

-

-void DownloadManager::pauseAll()

-{

-

-  // first loop: pause all downloads

-  for (int i = 0; i < m_ActiveDownloads.count(); ++i) {

-    if (m_ActiveDownloads[i]->m_State < STATE_READY) {

-      pauseDownload(i);

-    }

-  }

-

-  ::Sleep(100);

-

-  bool done = false;

-  QTime startTime = QTime::currentTime();

-  // further loops: busy waiting for all downloads to complete. This could be neater...

-  while (!done && (startTime.secsTo(QTime::currentTime()) < 5)) {

-    QCoreApplication::processEvents();

-    done = true;

-    foreach (DownloadInfo *info, m_ActiveDownloads) {

-      if ((info->m_State < STATE_CANCELED) ||

-          (info->m_State == STATE_FETCHINGFILEINFO) ||

-          (info->m_State == STATE_FETCHINGMODINFO)) {

-        done = false;

-        break;

-      }

-    }

-    if (!done) {

-      ::Sleep(100);

-    }

-  }

-

-}

-

-

-void DownloadManager::setOutputDirectory(const QString &outputDirectory)

-{

-  QStringList directories = m_DirWatcher.directories();

-  if (directories.length() != 0) {

-    m_DirWatcher.removePaths(directories);

-  }

-  m_OutputDirectory = QDir::fromNativeSeparators(outputDirectory);

-  refreshList();

-  m_DirWatcher.addPath(m_OutputDirectory);

-}

-

-

-void DownloadManager::setPreferredServers(const std::map<QString, int> &preferredServers)

-{

-  m_PreferredServers = preferredServers;

-}

-

-

-void DownloadManager::setSupportedExtensions(const QStringList &extensions)

-{

-  m_SupportedExtensions = extensions;

-  refreshList();

-}

-

-void DownloadManager::setShowHidden(bool showHidden)

-{

-  m_ShowHidden = showHidden;

-  refreshList();

-}

-

-void DownloadManager::setPluginContainer(PluginContainer *pluginContainer)

-{

-  m_NexusInterface->setPluginContainer(pluginContainer);

-}

-

-

-

-

-

-

-void DownloadManager::refreshList()

-{

-  try {

-		//avoid triggering other refreshes

-		startDisableDirWatcher();

-

-    int downloadsBefore = m_ActiveDownloads.size();

-

-    // remove finished downloads

-    for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end();) {

-      if (((*iter)->m_State == STATE_READY) || ((*iter)->m_State == STATE_INSTALLED) || ((*iter)->m_State == STATE_UNINSTALLED)) {

-        delete *iter;

-        iter = m_ActiveDownloads.erase(iter);

-      } else {

-        ++iter;

-      }

-    }

-

-    QStringList nameFilters(m_SupportedExtensions);

-    foreach (const QString &extension, m_SupportedExtensions) {

-      nameFilters.append("*." + extension);

-    }

-

-    nameFilters.append(QString("*").append(UNFINISHED));

-    QDir dir(QDir::fromNativeSeparators(m_OutputDirectory));

-

-    // find orphaned meta files and delete them (sounds cruel but it's better for everyone)

-    QStringList orphans;

-    QStringList metaFiles = dir.entryList(QStringList() << "*.meta");

-    foreach (const QString &metaFile, metaFiles) {

-      QString baseFile = metaFile.left(metaFile.length() - 5);

-      if (!QFile::exists(dir.absoluteFilePath(baseFile))) {

-        orphans.append(dir.absoluteFilePath(metaFile));

-      }

-    }

-    if (orphans.size() > 0) {

-      qDebug("%d orphaned meta files will be deleted", orphans.size());

-      shellDelete(orphans, true);

-    }

-

-    // add existing downloads to list

-    foreach (QString file, dir.entryList(nameFilters, QDir::Files, QDir::Time)) {

-      bool Exists = false;

-      for (QVector<DownloadInfo*>::const_iterator Iter = m_ActiveDownloads.begin(); Iter != m_ActiveDownloads.end() && !Exists; ++Iter) {

-        if (QString::compare((*Iter)->m_FileName, file, Qt::CaseInsensitive) == 0) {

-          Exists = true;

-        } else if (QString::compare(QFileInfo((*Iter)->m_Output.fileName()).fileName(), file, Qt::CaseInsensitive) == 0) {

-          Exists = true;

-        }

-      }

-      if (Exists) {

-        continue;

-      }

-

-      QString fileName = QDir::fromNativeSeparators(m_OutputDirectory) + "/" + file;

-

-      DownloadInfo *info = DownloadInfo::createFromMeta(fileName, m_ShowHidden, m_OutputDirectory);

-      if (info != nullptr) {

-        m_ActiveDownloads.push_front(info);

-      }

-    }

-

-    //if (m_ActiveDownloads.size() != downloadsBefore) {

-      qDebug("Downloads after refresh: %d", m_ActiveDownloads.size());

-    //}

-    emit update(-1);

-

-		//let watcher trigger refreshes again

-		endDisableDirWatcher();

-

-  } catch (const std::bad_alloc&) {

-    reportError(tr("Memory allocation error (in refreshing directory)."));

-  }

-}

-

-

-bool DownloadManager::addDownload(const QStringList &URLs, QString gameName,

-                                  int modID, int fileID, const ModRepositoryFileInfo *fileInfo)

-{

-  QString fileName = QFileInfo(URLs.first()).fileName();

-  if (fileName.isEmpty()) {

-    fileName = "unknown";

-  }

-

-  QUrl preferredUrl = QUrl::fromEncoded(URLs.first().toLocal8Bit());

-  qDebug("selected download url: %s", qUtf8Printable(preferredUrl.toString()));

-  QNetworkRequest request(preferredUrl);

-  request.setHeader(QNetworkRequest::UserAgentHeader, m_NexusInterface->getAccessManager()->userAgent());

-  return addDownload(m_NexusInterface->getAccessManager()->get(request), URLs, fileName, gameName, modID, fileID, fileInfo);

-}

-

-

-bool DownloadManager::addDownload(QNetworkReply *reply, const ModRepositoryFileInfo *fileInfo)

-{

-  QString fileName = getFileNameFromNetworkReply(reply);

-  if (fileName.isEmpty()) {

-    fileName = "unknown";

-  }

-

-  return addDownload(reply, QStringList(reply->url().toString()), fileName, fileInfo->gameName, fileInfo->modID, fileInfo->fileID, fileInfo);

-}

-

-

-bool DownloadManager::addDownload(QNetworkReply *reply, const QStringList &URLs, const QString &fileName,

-                                  QString gameName, int modID, int fileID, const ModRepositoryFileInfo *fileInfo)

-{

-  // download invoked from an already open network reply (i.e. download link in the browser)

-  DownloadInfo *newDownload = DownloadInfo::createNew(fileInfo, URLs);

-

-  QString baseName = fileName;

-  if (!fileInfo->fileName.isEmpty()) {

-    baseName = fileInfo->fileName;

-  } else {

-    QString dispoName = getFileNameFromNetworkReply(reply);

-

-    if (!dispoName.isEmpty()) {

-      baseName = dispoName;

-    }

-  }

-

-	startDisableDirWatcher();

-  newDownload->setName(getDownloadFileName(baseName), false);

-	endDisableDirWatcher();

-

-  startDownload(reply, newDownload, false);

-//  emit update(-1);

-  return true;

-}

-

-

-void DownloadManager::removePending(QString gameName, int modID, int fileID)

-{

-  emit aboutToUpdate();

-  for (auto iter : m_PendingDownloads) {

-    if (gameName.compare(std::get<0>(iter), Qt::CaseInsensitive) == 0 && (std::get<1>(iter) == modID) && (std::get<2>(iter) == fileID)) {

-      m_PendingDownloads.removeAt(m_PendingDownloads.indexOf(iter));

-      break;

-    }

-  }

-  emit update(-1);

-}

-

-

-void DownloadManager::startDownload(QNetworkReply *reply, DownloadInfo *newDownload, bool resume)

-{

-  reply->setReadBufferSize(1024 * 1024); // don't read more than 1MB at once to avoid memory troubles

-  newDownload->m_Reply = reply;

-  setState(newDownload, STATE_DOWNLOADING);

-  if (newDownload->m_Urls.count() == 0) {

-    newDownload->m_Urls = QStringList(reply->url().toString());

-  }

-

-  QIODevice::OpenMode mode = QIODevice::WriteOnly;

-  if (resume) {

-    mode |= QIODevice::Append;

-  }

-

-  newDownload->m_StartTime.start();

-  createMetaFile(newDownload);

-

-  if (!newDownload->m_Output.open(mode)) {

-    reportError(tr("failed to download %1: could not open output file: %2")

-                .arg(reply->url().toString()).arg(newDownload->m_Output.fileName()));

-    return;

-  }

-

-  connect(newDownload->m_Reply, SIGNAL(downloadProgress(qint64, qint64)), this, SLOT(downloadProgress(qint64, qint64)));

-  connect(newDownload->m_Reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(downloadError(QNetworkReply::NetworkError)));

-  connect(newDownload->m_Reply, SIGNAL(readyRead()), this, SLOT(downloadReadyRead()));

-  connect(newDownload->m_Reply, SIGNAL(metaDataChanged()), this, SLOT(metaDataChanged()));

-

-  if (!resume) {

-    newDownload->m_PreResumeSize = newDownload->m_Output.size();

-    removePending(newDownload->m_FileInfo->gameName, newDownload->m_FileInfo->modID, newDownload->m_FileInfo->fileID);

-

-    emit aboutToUpdate();

-    m_ActiveDownloads.append(newDownload);

-

-    emit update(-1);

-    emit downloadAdded();

-

-    if (QFile::exists(m_OutputDirectory + "/" + newDownload->m_FileName)) {

-      setState(newDownload, STATE_PAUSING);

-      QCoreApplication::processEvents();

-      if (QMessageBox::question(nullptr, tr("Download again?"), tr("A file with the same name \"%1\" has already been downloaded. "

-          "Do you want to download it again? The new file will receive a different name.").arg(newDownload->m_FileName),

-          QMessageBox::Yes | QMessageBox::No) == QMessageBox::No) {

-        if (reply->isFinished())

-          setState(newDownload, STATE_CANCELED);

-        else

-          setState(newDownload, STATE_CANCELING);

-      } else {

-				startDisableDirWatcher();

-        newDownload->setName(getDownloadFileName(newDownload->m_FileName, true), true);

-				endDisableDirWatcher();

-        if (newDownload->m_State == STATE_PAUSED)

-          resumeDownload(indexByName(newDownload->m_FileName));

-        else

-          setState(newDownload, STATE_DOWNLOADING);

-      }

-    } else

-      connect(newDownload->m_Reply, SIGNAL(finished()), this, SLOT(downloadFinished()));

-

-

-    QCoreApplication::processEvents();

-

-    if (newDownload->m_State != STATE_DOWNLOADING &&

-      newDownload->m_State != STATE_READY &&

-      newDownload->m_State != STATE_FETCHINGMODINFO &&

-      reply->isFinished()) {

-      downloadFinished(indexByName(newDownload->m_FileName));

-      return;

-    }

-  } else

-    connect(newDownload->m_Reply, SIGNAL(finished()), this, SLOT(downloadFinished()));

-}

-

-

-void DownloadManager::addNXMDownload(const QString &url)

-{

-  NXMUrl nxmInfo(url);

-

-  QStringList validGames;

-  validGames.append(m_ManagedGame->gameShortName());

-  validGames.append(m_ManagedGame->validShortNames());

-  qDebug("add nxm download: %s", qUtf8Printable(url));

-  if (!validGames.contains(nxmInfo.game(), Qt::CaseInsensitive)) {

-    qDebug("download requested for wrong game (game: %s, url: %s)", qUtf8Printable(m_ManagedGame->gameShortName()), qUtf8Printable(nxmInfo.game()));

-    QMessageBox::information(nullptr, tr("Wrong Game"), tr("The download link is for a mod for \"%1\" but this instance of MO "

-    "has been set up for \"%2\".").arg(nxmInfo.game()).arg(m_ManagedGame->gameShortName()), QMessageBox::Ok);

-    return;

-  }

-

-  for (auto tuple : m_PendingDownloads) {

-    if (std::get<0>(tuple).compare(nxmInfo.game(), Qt::CaseInsensitive) == 0, std::get<1>(tuple) == nxmInfo.modId() && std::get<2>(tuple) == nxmInfo.fileId()) {

-      qDebug("download requested is already started (mod id: %s, file id: %s)", qUtf8Printable(QString(nxmInfo.modId())), qUtf8Printable(QString(nxmInfo.fileId())));

-      QMessageBox::information(nullptr, tr("Already Started"), tr("A download for this mod file has already been queued."), QMessageBox::Ok);

-      return;

-    }

-  }

-

-  for (DownloadInfo *download : m_ActiveDownloads) {

-    if (download->m_FileInfo->modID == nxmInfo.modId() && download->m_FileInfo->fileID == nxmInfo.fileId()) {

-      if (download->m_State == STATE_DOWNLOADING || download->m_State == STATE_PAUSED || download->m_State == STATE_STARTED) {

-        qDebug("download requested is already started (mod: %s, file: %s)", qUtf8Printable(QString(download->m_FileInfo->modID)),

-          qUtf8Printable(download->m_FileInfo->fileName));

-

-        QMessageBox::information(nullptr, tr("Already Started"), tr("There is already a download started for this file (mod: %1, file: %2).")

-          .arg(download->m_FileInfo->modName).arg(download->m_FileInfo->fileName), QMessageBox::Ok);

-        return;

-      }

-    }

-  }

-

-  emit aboutToUpdate();

-

-  m_PendingDownloads.append(std::make_tuple(nxmInfo.game(), nxmInfo.modId(), nxmInfo.fileId()));

-

-  emit update(-1);

-  emit downloadAdded();

-  m_RequestIDs.insert(m_NexusInterface->requestFileInfo(nxmInfo.game(), nxmInfo.modId(), nxmInfo.fileId(), this, nxmInfo.fileId(), ""));

-}

-

-

-void DownloadManager::removeFile(int index, bool deleteFile)

-{

-	//Avoid triggering refreshes from DirWatcher

-	startDisableDirWatcher();

-

-  if (index >= m_ActiveDownloads.size()) {

-    throw MyException(tr("remove: invalid download index %1").arg(index));

-  }

-

-  DownloadInfo *download = m_ActiveDownloads.at(index);

-  QString filePath = m_OutputDirectory + "/" + download->m_FileName;

-  if ((download->m_State == STATE_STARTED) ||

-      (download->m_State == STATE_DOWNLOADING)) {

-    // shouldn't have been possible

-    qCritical("tried to remove active download");

-		endDisableDirWatcher();

-    return;

-  }

-

-  if ((download->m_State == STATE_PAUSED) || (download->m_State == STATE_ERROR)) {

-    filePath = download->m_Output.fileName();

-  }

-

-  if (deleteFile) {

-    if (!shellDelete(QStringList(filePath), true)) {

-      reportError(tr("failed to delete %1").arg(filePath));

-			endDisableDirWatcher();

-      return;

-    }

-

-    QFile metaFile(filePath.append(".meta"));

-    if (metaFile.exists() && !shellDelete(QStringList(filePath), true)) {

-      reportError(tr("failed to delete meta file for %1").arg(filePath));

-    }

-  } else {

-    QSettings metaSettings(filePath.append(".meta"), QSettings::IniFormat);

-		if(!download->m_Hidden)

-			metaSettings.setValue("removed", true);

-  }

-

-	endDisableDirWatcher();

-}

-

-class LessThanWrapper

-{

-public:

-  LessThanWrapper(DownloadManager *manager) : m_Manager(manager) {}

-  bool operator()(int LHS, int RHS) {

-    return m_Manager->getFileName(LHS).compare(m_Manager->getFileName(RHS), Qt::CaseInsensitive) < 0;

-

-  }

-

-private:

-  DownloadManager *m_Manager;

-};

-

-

-bool DownloadManager::ByName(int LHS, int RHS)

-{

-  return m_ActiveDownloads[LHS]->m_FileName < m_ActiveDownloads[RHS]->m_FileName;

-}

-

-

-void DownloadManager::refreshAlphabeticalTranslation()

-{

-  m_AlphabeticalTranslation.clear();

-  int pos = 0;

-  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter, ++pos) {

-    m_AlphabeticalTranslation.push_back(pos);

-  }

-

-  qSort(m_AlphabeticalTranslation.begin(), m_AlphabeticalTranslation.end(), LessThanWrapper(this));

-}

-

-

-void DownloadManager::restoreDownload(int index)

-{

-

-	if (index < 0) {

-		DownloadState minState = STATE_READY ;

-		index = 0;

-

-		for (QVector<DownloadInfo*>::const_iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter ) {

-

-			if ((*iter)->m_State >= minState) {

-				restoreDownload(index);

-			}

-			index++;

-		}

-	}

-	else {

-		if (index >= m_ActiveDownloads.size()) {

-			throw MyException(tr("restore: invalid download index: %1").arg(index));

-		}

-

-		DownloadInfo *download = m_ActiveDownloads.at(index);

-		if (download->m_Hidden) {

-			download->m_Hidden = false;

-

-			QString filePath = m_OutputDirectory + "/" + download->m_FileName;

-

-			//avoid dirWatcher triggering refreshes

-			startDisableDirWatcher();

-				QSettings metaSettings(filePath.append(".meta"), QSettings::IniFormat);

-			metaSettings.setValue("removed", false);

-

-			endDisableDirWatcher();

-		}

-	}

-}

-

-

-void DownloadManager::removeDownload(int index, bool deleteFile)

-{

-  try {

-		//avoid dirWatcher triggering refreshes

-		startDisableDirWatcher();

-

-    emit aboutToUpdate();

-

-    if (index < 0) {

-      bool removeAll = (index == -1);

-      DownloadState removeState = (index == -2 ? STATE_INSTALLED : STATE_UNINSTALLED);

-

-			index = 0;

-      for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end();) {

-        DownloadState downloadState = (*iter)->m_State;

-				if ((removeAll && (downloadState >= STATE_READY)) ||

-            (removeState == downloadState)) {

-					removeFile(index, deleteFile);

-					delete *iter;

-					iter = m_ActiveDownloads.erase(iter);

-				} else {

-					++iter;

-					++index;

-				}

-			}

-    } else {

-      if (index >= m_ActiveDownloads.size()) {

-        reportError(tr("remove: invalid download index %1").arg(index));

-				//emit update(-1);

-				endDisableDirWatcher();

-        return;

-      }

-

-      removeFile(index, deleteFile);

-      delete m_ActiveDownloads.at(index);

-      m_ActiveDownloads.erase(m_ActiveDownloads.begin() + index);

-    }

-    emit update(-1);

-		endDisableDirWatcher();

-  } catch (const std::exception &e) {

-    qCritical("failed to remove download: %s", e.what());

-  }

-	refreshList();

-}

-

-

-void DownloadManager::cancelDownload(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("cancel: invalid download index %1").arg(index));

-    return;

-  }

-

-  if (m_ActiveDownloads.at(index)->m_State == STATE_DOWNLOADING) {

-    setState(m_ActiveDownloads.at(index), STATE_CANCELING);

-  }

-}

-

-

-void DownloadManager::pauseDownload(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("pause: invalid download index %1").arg(index));

-    return;

-  }

-

-  DownloadInfo *info = m_ActiveDownloads.at(index);

-

-  if (info->m_State == STATE_DOWNLOADING) {

-    if ((info->m_Reply != nullptr) && (info->m_Reply->isRunning())) {

-      setState(info, STATE_PAUSING);

-    } else {

-      setState(info, STATE_PAUSED);

-    }

-  } else if ((info->m_State == STATE_FETCHINGMODINFO) || (info->m_State == STATE_FETCHINGFILEINFO)) {

-    setState(info, STATE_READY);

-  }

-}

-

-void DownloadManager::resumeDownload(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("resume: invalid download index %1").arg(index));

-    return;

-  }

-  DownloadInfo *info = m_ActiveDownloads[index];

-  info->m_Tries = AUTOMATIC_RETRIES;

-  resumeDownloadInt(index);

-}

-

-void DownloadManager::resumeDownloadInt(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("resume (int): invalid download index %1").arg(index));

-    return;

-  }

-  DownloadInfo *info = m_ActiveDownloads[index];

-

-  // Check for finished download;

-  if (info->m_TotalSize <= info->m_Output.size() && info->m_Reply != nullptr

-      && info->m_Reply->isOpen() && info->m_Reply->isFinished() && info->m_State != STATE_ERROR) {

-    setState(info, STATE_DOWNLOADING);

-    downloadFinished(index);

-    return;

-  }

-

-  if (info->isPausedState() || info->m_State == STATE_PAUSING) {

-    if (info->m_State == STATE_PAUSING) {

-      if (info->m_Output.isOpen()) {

-        writeData(info);

-        if (info->m_State == STATE_PAUSING) {

-          setState(info, STATE_PAUSED);

-        }

-      }

-    }

-    if ((info->m_Urls.size() == 0)

-        || ((info->m_Urls.size() == 1) && (info->m_Urls[0].size() == 0))) {

-      emit showMessage(tr("No known download urls. Sorry, this download can't be resumed."));

-      return;

-    }

-    if (info->m_State == STATE_ERROR) {

-      info->m_CurrentUrl = (info->m_CurrentUrl + 1) % info->m_Urls.count();

-    }

-    qDebug("request resume from url %s", qUtf8Printable(info->currentURL()));

-    QNetworkRequest request(QUrl::fromEncoded(info->currentURL().toLocal8Bit()));

-    request.setHeader(QNetworkRequest::UserAgentHeader, m_NexusInterface->getAccessManager()->userAgent());

-    if (info->m_State != STATE_ERROR) {

-      info->m_ResumePos = info->m_Output.size();

-      QByteArray rangeHeader = "bytes=" + QByteArray::number(info->m_ResumePos) + "-";

-      request.setRawHeader("Range", rangeHeader);

-    }

-    std::get<0>(info->m_SpeedDiff) = 0;

-    std::get<1>(info->m_SpeedDiff) = 0;

-    std::get<2>(info->m_SpeedDiff) = 0;

-    std::get<3>(info->m_SpeedDiff) = 0;

-    std::get<4>(info->m_SpeedDiff) = 0;

-    qDebug("resume at %lld bytes", info->m_ResumePos);

-    startDownload(m_NexusInterface->getAccessManager()->get(request), info, true);

-  }

-  emit update(index);

-}

-

-

-DownloadManager::DownloadInfo *DownloadManager::downloadInfoByID(unsigned int id)

-{

-  auto iter = std::find_if(m_ActiveDownloads.begin(), m_ActiveDownloads.end(),

-               [id](DownloadInfo *info) { return info->m_DownloadID == id; });

-  if (iter != m_ActiveDownloads.end()) {

-    return *iter;

-  } else {

-    return nullptr;

-  }

-}

-

-

-void DownloadManager::queryInfo(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("query: invalid download index %1").arg(index));

-    return;

-  }

-  DownloadInfo *info = m_ActiveDownloads[index];

-

-  if (info->m_FileInfo->repository != "Nexus") {

-    qWarning("re-querying file info is currently only possible with Nexus");

-    return;

-  }

-

-  if (info->m_State < DownloadManager::STATE_READY) {

-    // UI shouldn't allow this

-    return;

-  }

-

-  if (info->m_FileInfo->modID <= 0) {

-    QString fileName = getFileName(index);

-    QString ignore;

-    NexusInterface::interpretNexusFileName(fileName, ignore, info->m_FileInfo->modID, true);

-    if (info->m_FileInfo->modID < 0) {

-      bool ok = false;

-      int modId = QInputDialog::getInt(

-          nullptr, tr("Please enter the nexus mod id"), tr("Mod ID:"), 1, 1,

-          std::numeric_limits<int>::max(), 1, &ok);

-      // careful now: while the dialog was displayed, events were processed.

-      // the download list might have changed and our info-ptr invalidated.

-      if (ok)

-        m_ActiveDownloads[index]->m_FileInfo->modID = modId;

-      return;

-    }

-  }

-

-  if (info->m_FileInfo->gameName.size() == 0) {

-    SelectionDialog selection(tr("Please select the source game code for %1").arg(getFileName(index)));

-

-    std::vector<std::pair<QString, QString>> choices = m_NexusInterface->getGameChoices(m_ManagedGame);

-    for (auto choice : choices) {

-      selection.addChoice(choice.first, choice.second, choice.first);

-    }

-    if (selection.exec() == QDialog::Accepted) {

-      info->m_FileInfo->gameName = selection.getChoiceData().toString();

-    } else {

-      info->m_FileInfo->gameName = m_ManagedGame->gameShortName();

-    }

-  }

-  info->m_ReQueried = true;

-  setState(info, STATE_FETCHINGMODINFO);

-}

-

-void DownloadManager::visitOnNexus(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("VisitNexus: invalid download index %1").arg(index));

-    return;

-  }

-  DownloadInfo *info = m_ActiveDownloads[index];

-

-  if (info->m_FileInfo->repository != "Nexus") {

-    qWarning("Visiting mod page is currently only possible with Nexus");

-    return;

-  }

-

-  if (info->m_State < DownloadManager::STATE_READY) {

-    // UI shouldn't allow this

-    return;

-  }

-  int modID = info->m_FileInfo->modID;

-

-  QString gameName = info->m_FileInfo->gameName;

-  if (modID > 0) {

-    QDesktopServices::openUrl(QUrl(m_NexusInterface->getModURL(modID, gameName)));

-  }

-  else {

-    emit showMessage(tr("Nexus ID for this Mod is unknown"));

-  }

-}

-

-void DownloadManager::openFile(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("OpenFile: invalid download index %1").arg(index));

-    return;

-  }

-  QDir path = QDir(m_OutputDirectory);

-  if (path.exists(getFileName(index))) {

-

-    ::ShellExecuteW(nullptr, L"open", ToWString(QDir::toNativeSeparators(getFilePath(index))).c_str(), nullptr, nullptr, SW_SHOWNORMAL);

-    return;

-  }

-

-  ::ShellExecuteW(nullptr, L"explore", ToWString(QDir::toNativeSeparators(m_OutputDirectory)).c_str(), nullptr, nullptr, SW_SHOWNORMAL);

-  return;

-}

-

-void DownloadManager::openInDownloadsFolder(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    reportError(tr("OpenFileInDownloadsFolder: invalid download index %1").arg(index));

-    return;

-  }

-  QString params = "/select,\"";

-  QDir path = QDir(m_OutputDirectory);

-  if (path.exists(getFileName(index))) {

-    params = params + QDir::toNativeSeparators(getFilePath(index)) + "\"";

-

-    ::ShellExecuteW(nullptr, nullptr, L"explorer", ToWString(params).c_str(), nullptr, SW_SHOWNORMAL);

-    return;

-  }

-  else if (path.exists(getFileName(index) + ".unfinished")) {

-    params = params + QDir::toNativeSeparators(getFilePath(index)+".unfinished") + "\"";

-

-    ::ShellExecuteW(nullptr, nullptr, L"explorer", ToWString(params).c_str(), nullptr, SW_SHOWNORMAL);

-    return;

-  }

-

-  ::ShellExecuteW(nullptr, L"explore", ToWString(QDir::toNativeSeparators(m_OutputDirectory)).c_str(), nullptr, nullptr, SW_SHOWNORMAL);

-  return;

-}

-

-

-int DownloadManager::numTotalDownloads() const

-{

-  return m_ActiveDownloads.size();

-}

-

-int DownloadManager::numPendingDownloads() const

-{

-  return m_PendingDownloads.size();

-}

-

-std::tuple<QString, int, int> DownloadManager::getPendingDownload(int index)

-{

-  if ((index < 0) || (index >= m_PendingDownloads.size())) {

-    throw MyException(tr("get pending: invalid download index %1").arg(index));

-  }

-

-  return m_PendingDownloads.at(index);

-}

-

-QString DownloadManager::getFilePath(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("get path: invalid download index %1").arg(index));

-  }

-

-  return m_OutputDirectory + "/" + m_ActiveDownloads.at(index)->m_FileName;

-}

-

-QString DownloadManager::getFileTypeString(int fileType)

-{

-  switch (fileType) {

-    case 1: return tr("Main");

-    case 2: return tr("Update");

-    case 3: return tr("Optional");

-    case 4: return tr("Old");

-    case 5: return tr("Misc");

-    default: return tr("Unknown");

-  }

-}

-

-QString DownloadManager::getDisplayName(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("display name: invalid download index %1").arg(index));

-  }

-

-  DownloadInfo *info = m_ActiveDownloads.at(index);

-

-  QTextDocument doc;

-  if (!info->m_FileInfo->name.isEmpty()) {

-    doc.setHtml(info->m_FileInfo->name);

-    return QString("%1 (%2, v%3)").arg(doc.toPlainText())

-                                  .arg(getFileTypeString(info->m_FileInfo->fileCategory))

-                                  .arg(info->m_FileInfo->version.displayString());

-  } else {

-    doc.setHtml(info->m_FileName);

-    return doc.toPlainText();

-  }

-}

-

-QString DownloadManager::getFileName(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("file name: invalid download index %1").arg(index));

-  }

-

-  return m_ActiveDownloads.at(index)->m_FileName;

-}

-

-QDateTime DownloadManager::getFileTime(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("file time: invalid download index %1").arg(index));

-  }

-

-  DownloadInfo *info = m_ActiveDownloads.at(index);

-  if (!info->m_Created.isValid()) {

-    info->m_Created = QFileInfo(info->m_Output).created();

-  }

-

-  return info->m_Created;

-}

-

-qint64 DownloadManager::getFileSize(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("file size: invalid download index %1").arg(index));

-  }

-

-  return m_ActiveDownloads.at(index)->m_TotalSize;

-}

-

-

-std::pair<int, QString> DownloadManager::getProgress(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("progress: invalid download index %1").arg(index));

-  }

-

-  return m_ActiveDownloads.at(index)->m_Progress;

-}

-

-

-DownloadManager::DownloadState DownloadManager::getState(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("state: invalid download index %1").arg(index));

-  }

-

-  return m_ActiveDownloads.at(index)->m_State;

-}

-

-

-bool DownloadManager::isInfoIncomplete(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("infocomplete: invalid download index %1").arg(index));

-  }

-

-  DownloadInfo *info = m_ActiveDownloads.at(index);

-  if (info->m_FileInfo->repository != "Nexus") {

-    // other repositories currently don't support re-querying info anyway

-    return false;

-  }

-  return (info->m_FileInfo->fileID == 0) || (info->m_FileInfo->modID == 0);

-}

-

-

-int DownloadManager::getModID(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("mod id: invalid download index %1").arg(index));

-  }

-  return m_ActiveDownloads.at(index)->m_FileInfo->modID;

-}

-

-QString DownloadManager::getGameName(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("mod id: invalid download index %1").arg(index));

-  }

-  return m_ActiveDownloads.at(index)->m_FileInfo->gameName;

-}

-

-bool DownloadManager::isHidden(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("ishidden: invalid download index %1").arg(index));

-  }

-  return m_ActiveDownloads.at(index)->m_Hidden;

-}

-

-

-const ModRepositoryFileInfo *DownloadManager::getFileInfo(int index) const

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("file info: invalid download index %1").arg(index));

-  }

-

-  return m_ActiveDownloads.at(index)->m_FileInfo;

-}

-

-

-void DownloadManager::markInstalled(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("mark installed: invalid download index %1").arg(index));

-  }

-

-	//Avoid triggering refreshes from DirWatcher

-	startDisableDirWatcher();

-

-  DownloadInfo *info = m_ActiveDownloads.at(index);

-  QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);

-  metaFile.setValue("installed", true);

-  metaFile.setValue("uninstalled", false);

-

-	endDisableDirWatcher();

-

-  setState(m_ActiveDownloads.at(index), STATE_INSTALLED);

-}

-

-void DownloadManager::markInstalled(QString fileName)

-{

-  int index = indexByName(fileName);

-  if (index >= 0) {

-    markInstalled(index);

-  } else {

-    DownloadInfo *info = getDownloadInfo(fileName);

-    if (info != nullptr) {

-			//Avoid triggering refreshes from DirWatcher

-			startDisableDirWatcher();

-

-      QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);

-      metaFile.setValue("installed", true);

-      metaFile.setValue("uninstalled", false);

-      delete info;

-

-			endDisableDirWatcher();

-    }

-  }

-}

-

-DownloadManager::DownloadInfo* DownloadManager::getDownloadInfo(QString fileName)

-{

-  return DownloadInfo::createFromMeta(fileName, true, m_OutputDirectory);

-}

-

-void DownloadManager::markUninstalled(int index)

-{

-  if ((index < 0) || (index >= m_ActiveDownloads.size())) {

-    throw MyException(tr("mark uninstalled: invalid download index %1").arg(index));

-  }

-

-	//Avoid triggering refreshes from DirWatcher

-	startDisableDirWatcher();

-

-  DownloadInfo *info = m_ActiveDownloads.at(index);

-  QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);

-  metaFile.setValue("uninstalled", true);

-

-	endDisableDirWatcher();

-

-  setState(m_ActiveDownloads.at(index), STATE_UNINSTALLED);

-}

-

-

-void DownloadManager::markUninstalled(QString fileName)

-{

-  int index = indexByName(fileName);

-  if (index >= 0) {

-    markUninstalled(index);

-  } else {

-    QString filePath = QDir::fromNativeSeparators(m_OutputDirectory) + "/" + fileName;

-    DownloadInfo *info = getDownloadInfo(filePath);

-    if (info != nullptr) {

-

-			//Avoid triggering refreshes from DirWatcher

-			startDisableDirWatcher();

-

-      QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);

-      metaFile.setValue("uninstalled", true);

-      delete info;

-

-			endDisableDirWatcher();

-    }

-  }

-}

-

-

-QString DownloadManager::getDownloadFileName(const QString &baseName, bool rename) const

-{

-  QString fullPath = m_OutputDirectory + "/" + baseName;

-  if (QFile::exists(fullPath) && rename) {

-    int i = 1;

-    while (QFile::exists(QString("%1/%2_%3").arg(m_OutputDirectory).arg(i).arg(baseName))) {

-      ++i;

-    }

-

-    fullPath = QString("%1/%2_%3").arg(m_OutputDirectory).arg(i).arg(baseName);

-  }

-  return fullPath;

-}

-

-

-QString DownloadManager::getFileNameFromNetworkReply(QNetworkReply *reply)

-{

-  if (reply->hasRawHeader("Content-Disposition")) {

-    std::regex exp("filename=\"(.*)\"");

-

-    std::cmatch result;

-    if (std::regex_search(reply->rawHeader("Content-Disposition").constData(), result, exp)) {

-      return QString::fromUtf8(result.str(1).c_str());

-    }

-  }

-

-  return QString();

-}

-

-

-void DownloadManager::setState(DownloadManager::DownloadInfo *info, DownloadManager::DownloadState state)

-{

-  int row = 0;

-  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {

-    if (m_ActiveDownloads[i] == info) {

-      row = i;

-      break;

-    }

-  }

-  info->m_State = state;

-  switch (state) {

-    case STATE_PAUSED:

-    case STATE_ERROR: {

-      info->m_Reply->abort();

-      info->m_Output.close();

-    } break;

-    case STATE_CANCELED: {

-      info->m_Reply->abort();

-    } break;

-    case STATE_FETCHINGMODINFO: {

-      m_RequestIDs.insert(m_NexusInterface->requestDescription(info->m_FileInfo->gameName, info->m_FileInfo->modID, this, info->m_DownloadID, QString()));

-    } break;

-    case STATE_FETCHINGFILEINFO: {

-      m_RequestIDs.insert(m_NexusInterface->requestFiles(info->m_FileInfo->gameName, info->m_FileInfo->modID, this, info->m_DownloadID, QString()));

-    } break;

-    case STATE_READY: {

-      createMetaFile(info);

-      emit downloadComplete(row);

-    } break;

-    default: /* NOP */ break;

-  }

-  emit stateChanged(row, state);

-}

-

-

-DownloadManager::DownloadInfo *DownloadManager::findDownload(QObject *reply, int *index) const

-{

-  // reverse search as newer, thus more relevant, downloads are at the end

-  for (int i = m_ActiveDownloads.size() - 1; i >= 0; --i) {

-    if (m_ActiveDownloads[i]->m_Reply == reply) {

-      if (index != nullptr) {

-        *index = i;

-      }

-      return m_ActiveDownloads[i];

-    }

-  }

-  return nullptr;

-}

-

-

-void DownloadManager::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)

-{

-  if (bytesTotal == 0) {

-    return;

-  }

-  int index = 0;

-  try {

-    DownloadInfo *info = findDownload(this->sender(), &index);

-    if (info != nullptr) {

-      info->m_HasData = true;

-      if (info->m_State == STATE_CANCELING) {

-        setState(info, STATE_CANCELED);

-      } else if (info->m_State == STATE_PAUSING) {

-        setState(info, STATE_PAUSED);

-      }

-      else {

-        if (bytesTotal > info->m_TotalSize) {

-          info->m_TotalSize = bytesTotal;

-        }

-        int oldProgress = info->m_Progress.first;

-        info->m_Progress.first = ((info->m_ResumePos + bytesReceived) * 100) / (info->m_ResumePos + bytesTotal);

-

-        int elapsed = info->m_StartTime.elapsed();

-        std::get<0>(info->m_SpeedDiff) = bytesReceived - std::get<2>(info->m_SpeedDiff);

-        std::get<1>(info->m_SpeedDiff) = elapsed - std::get<3>(info->m_SpeedDiff);

-        std::get<2>(info->m_SpeedDiff) = bytesReceived;

-        std::get<3>(info->m_SpeedDiff) = elapsed;

-

-        double calc = ((double)std::get<0>(info->m_SpeedDiff)) / (((double)(std::get<1>(info->m_SpeedDiff)) / 5000.0));

-        std::get<4>(info->m_SpeedDiff) = ((calc*0.5) + (std::get<4>(info->m_SpeedDiff)*1.5)) / 2;

-

-        // calculate the download speed

-        double speed = (std::get<4>(info->m_SpeedDiff) * 1000.0) / (5 * 1000);

-

-        QString unit;

-        if (speed < 1000) {

-          unit = "B/s";

-        }

-        else if (speed < 1000*1024) {

-          speed /= 1024;

-          unit = "KB/s";

-        }

-        else {

-          speed /= 1024 * 1024;

-          unit = "MB/s";

-        }

-

-        info->m_Progress.second = QString::fromLatin1("%1% - %2 %3").arg(info->m_Progress.first).arg(QString::number(speed, 'f', 1)).arg(unit);

-

-        TaskProgressManager::instance().updateProgress(info->m_TaskProgressId, bytesReceived, bytesTotal);

-        emit update(index);

-      }

-    }

-  } catch (const std::bad_alloc&) {

-    reportError(tr("Memory allocation error (in processing progress event)."));

-  }

-}

-

-

-void DownloadManager::downloadReadyRead()

-{

-  try {

-    writeData(findDownload(this->sender()));

-  } catch (const std::bad_alloc&) {

-    reportError(tr("Memory allocation error (in processing downloaded data)."));

-  }

-}

-

-

-void DownloadManager::createMetaFile(DownloadInfo *info)

-{

-	//Avoid triggering refreshes from DirWatcher

-	startDisableDirWatcher();

-

-  QSettings metaFile(QString("%1.meta").arg(info->m_Output.fileName()), QSettings::IniFormat);

-  metaFile.setValue("gameName", info->m_FileInfo->gameName);

-  metaFile.setValue("modID", info->m_FileInfo->modID);

-  metaFile.setValue("fileID", info->m_FileInfo->fileID);

-  metaFile.setValue("url", info->m_Urls.join(";"));

-  metaFile.setValue("name", info->m_FileInfo->name);

-  metaFile.setValue("description", info->m_FileInfo->description);

-  metaFile.setValue("modName", info->m_FileInfo->modName);

-  metaFile.setValue("version", info->m_FileInfo->version.canonicalString());

-  metaFile.setValue("newestVersion", info->m_FileInfo->newestVersion.canonicalString());

-  metaFile.setValue("fileTime", info->m_FileInfo->fileTime);

-  metaFile.setValue("fileCategory", info->m_FileInfo->fileCategory);

-  metaFile.setValue("category", info->m_FileInfo->categoryID);

-  metaFile.setValue("repository", info->m_FileInfo->repository);

-  metaFile.setValue("userData", info->m_FileInfo->userData);

-  metaFile.setValue("installed", info->m_State == DownloadManager::STATE_INSTALLED);

-  metaFile.setValue("uninstalled", info->m_State == DownloadManager::STATE_UNINSTALLED);

-  metaFile.setValue("paused", (info->m_State == DownloadManager::STATE_PAUSED) ||

-                              (info->m_State == DownloadManager::STATE_ERROR));

-  metaFile.setValue("removed", info->m_Hidden);

-

-	endDisableDirWatcher();

-  // slightly hackish...

-  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {

-    if (m_ActiveDownloads[i] == info) {

-      emit update(i);

-    }

-  }

-}

-

-

-void DownloadManager::nxmDescriptionAvailable(QString, int, QVariant userData, QVariant resultData, int requestID)

-{

-  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);

-  if (idIter == m_RequestIDs.end()) {

-    return;

-  } else {

-    m_RequestIDs.erase(idIter);

-  }

-

-  QVariantMap result = resultData.toMap();

-

-  DownloadInfo *info = downloadInfoByID(userData.toInt());

-  if (info == nullptr) return;

-  info->m_FileInfo->categoryID = result["category_id"].toInt();

-  QTextDocument doc;

-  doc.setHtml(result["name"].toString().trimmed());

-  info->m_FileInfo->modName = doc.toPlainText();

-  info->m_FileInfo->newestVersion.parse(result["version"].toString());

-  if (info->m_FileInfo->fileID != 0) {

-    setState(info, STATE_READY);

-  } else {

-    setState(info, STATE_FETCHINGFILEINFO);

-  }

-}

-

-

-QDateTime DownloadManager::matchDate(const QString &timeString)

-{

-  if (m_DateExpression.exactMatch(timeString)) {

-    return QDateTime::fromMSecsSinceEpoch(m_DateExpression.cap(1).toLongLong());

-  } else {

-    qWarning("date not matched: %s", qUtf8Printable(timeString));

-    return QDateTime::currentDateTime();

-  }

-}

-

-

-void DownloadManager::nxmFilesAvailable(QString, int, QVariant userData, QVariant resultData, int requestID)

-{

-  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);

-  if (idIter == m_RequestIDs.end()) {

-    return;

-  } else {

-    m_RequestIDs.erase(idIter);

-  }

-

-  DownloadInfo *info = downloadInfoByID(userData.toInt());

-  if (info == nullptr) return;

-

-  QVariantList result = resultData.toList();

-

-  // MO sometimes prepends <digit>_ to the filename in case of duplicate downloads.

-  // this may muck up the file name comparison

-  QString alternativeLocalName = info->m_FileName;

-

-  QRegExp expression("^\\d_(.*)$");

-  if (expression.indexIn(alternativeLocalName) == 0) {

-    alternativeLocalName = expression.cap(1);

-  }

-

-  bool found = false;

-

-  for (QVariant file : result) {

-    QVariantMap fileInfo = file.toMap();

-    QString fileName = fileInfo["uri"].toString();

-    QString fileNameVariant = fileName.mid(0).replace(' ', '_');

-    if ((fileName == info->m_FileName) || (fileName == alternativeLocalName) ||

-        (fileNameVariant == info->m_FileName) || (fileNameVariant == alternativeLocalName)) {

-      info->m_FileInfo->name = fileInfo["name"].toString();

-      info->m_FileInfo->version.parse(fileInfo["version"].toString());

-      if (!info->m_FileInfo->version.isValid()) {

-        info->m_FileInfo->version = info->m_FileInfo->newestVersion;

-      }

-      info->m_FileInfo->fileCategory = fileInfo["category_id"].toInt();

-      info->m_FileInfo->fileTime = matchDate(fileInfo["date"].toString());

-      info->m_FileInfo->fileID = fileInfo["id"].toInt();

-      info->m_FileInfo->fileName = fileInfo["uri"].toString();

-      info->m_FileInfo->description = BBCode::convertToHTML(fileInfo["description"].toString());

-      found = true;

-      break;

-    }

-  }

-

-  if (info->m_ReQueried) {

-    if (found) {

-      emit showMessage(tr("Information updated"));

-    } else if (result.count() == 0) {

-      emit showMessage(tr("No matching file found on Nexus! Maybe this file is no longer available or it was renamed?"));

-    } else {

-      SelectionDialog selection(tr("No file on Nexus matches the selected file by name. Please manually choose the correct one."));

-      for (QVariant file : result) {

-        QVariantMap fileInfo = file.toMap();

-        selection.addChoice(fileInfo["uri"].toString(), "", file);

-      }

-      if (selection.exec() == QDialog::Accepted) {

-        QVariantMap fileInfo = selection.getChoiceData().toMap();

-        info->m_FileInfo->name = fileInfo["name"].toString();

-        info->m_FileInfo->version.parse(fileInfo["version"].toString());

-        info->m_FileInfo->fileCategory = fileInfo["category_id"].toInt();

-        info->m_FileInfo->fileID = fileInfo["id"].toInt();

-      } else {

-        emit showMessage(tr("No matching file found on Nexus! Maybe this file is no longer available or it was renamed?"));

-      }

-    }

-  } else {

-    if (info->m_FileInfo->fileID == 0) {

-      qWarning("could not determine file id for %s (state %d)",

-               qUtf8Printable(info->m_FileName), info->m_State);

-    }

-  }

-

-  setState(info, STATE_READY);

-}

-

-

-void DownloadManager::nxmFileInfoAvailable(QString gameName, int modID, int fileID, QVariant userData, QVariant resultData, int requestID)

-{

-  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);

-  if (idIter == m_RequestIDs.end()) {

-    return;

-  } else {

-    m_RequestIDs.erase(idIter);

-  }

-

-  ModRepositoryFileInfo *info = new ModRepositoryFileInfo();

-

-  QVariantMap result = resultData.toMap();

-  info->name = result["name"].toString();

-  info->version.parse(result["version"].toString());

-  if (!info->version.isValid()) {

-    info->version = info->newestVersion;

-  }

-  info->fileName = result["file_name"].toString();

-  info->fileCategory = result["category_id"].toInt();

-  info->fileTime = matchDate(result["uploaded_timestamp"].toString());

-  info->description = BBCode::convertToHTML(result["changelog_html"].toString());

-

-  info->repository = "Nexus";

-  info->gameName = gameName;

-  info->modID = modID;

-  info->fileID = fileID;

-

-  QObject *test = info;

-  m_RequestIDs.insert(m_NexusInterface->requestDownloadURL(gameName, modID, fileID, this, qVariantFromValue(test), QString()));

-}

-

-static int evaluateFileInfoMap(const QVariantMap &map, const std::map<QString, int> &preferredServers)

-{

-  int result = 0;

-

-  auto preference = preferredServers.find(map["name"].toString());

-

-  if (preference != preferredServers.end()) {

-    result += 100 + preference->second * 20;

-  }

-

-  return result;

-}

-

-// sort function to sort by best download server

-bool DownloadManager::ServerByPreference(const std::map<QString, int> &preferredServers, const QVariant &LHS, const QVariant &RHS)

-{

-  return evaluateFileInfoMap(LHS.toMap(), preferredServers) > evaluateFileInfoMap(RHS.toMap(), preferredServers);

-}

-

-int DownloadManager::startDownloadURLs(const QStringList &urls)

-{

-  ModRepositoryFileInfo info;

-  addDownload(urls, "", -1, -1, &info);

-  return m_ActiveDownloads.size() - 1;

-}

-

-int DownloadManager::startDownloadNexusFile(int modID, int fileID)

-{

-  int newID = m_ActiveDownloads.size();

-  addNXMDownload(QString("nxm://%1/mods/%2/files/%3").arg(m_ManagedGame->gameShortName()).arg(modID).arg(fileID));

-  return newID;

-}

-

-QString DownloadManager::downloadPath(int id)

-{

-  return getFilePath(id);

-}

-

-int DownloadManager::indexByName(const QString &fileName) const

-{

-  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {

-    if (m_ActiveDownloads[i]->m_FileName == fileName) {

-      return i;

-    }

-  }

-  return -1;

-}

-

-void DownloadManager::nxmDownloadURLsAvailable(QString gameName, int modID, int fileID, QVariant userData, QVariant resultData, int requestID)

-{

-  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);

-  if (idIter == m_RequestIDs.end()) {

-    return;

-  } else {

-    m_RequestIDs.erase(idIter);

-  }

-

-  ModRepositoryFileInfo *info = qobject_cast<ModRepositoryFileInfo*>(qvariant_cast<QObject*>(userData));

-  QVariantList resultList = resultData.toList();

-  if (resultList.length() == 0) {

-    removePending(gameName, modID, fileID);

-    emit showMessage(tr("No download server available. Please try again later."));

-    return;

-  }

-

-  std::sort(resultList.begin(), resultList.end(), boost::bind(&DownloadManager::ServerByPreference, m_PreferredServers, _1, _2));

-

-  info->userData["downloadMap"] = resultList;

-

-  QStringList URLs;

-

-  foreach (const QVariant &server, resultList) {

-    URLs.append(server.toMap()["URI"].toString());

-  }

-  addDownload(URLs, gameName, modID, fileID, info);

-}

-

-

-void DownloadManager::nxmRequestFailed(QString gameName, int modID, int fileID, QVariant userData, int requestID, const QString &errorString)

-{

-  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);

-  if (idIter == m_RequestIDs.end()) {

-    return;

-  } else {

-    m_RequestIDs.erase(idIter);

-  }

-

-  int index = 0;

-

-  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter, ++index) {

-    DownloadInfo *info = *iter;

-    if (info->m_FileInfo->modID == modID) {

-      if (info->m_State < STATE_FETCHINGMODINFO) {

-        m_ActiveDownloads.erase(iter);

-        delete info;

-      } else {

-        setState(info, STATE_READY);

-      }

-      emit update(index);

-      break;

-    }

-  }

-

-  removePending(gameName, modID, fileID);

-  emit showMessage(tr("Failed to request file info from nexus: %1").arg(errorString));

-}

-

-

-void DownloadManager::downloadFinished(int index)

-{

-  DownloadInfo *info;

-  if (index)

-    info = m_ActiveDownloads[index];

-  else

-    info = findDownload(this->sender(), &index);

-

-  if (info != nullptr) {

-    QNetworkReply *reply = info->m_Reply;

-    QByteArray data;

-    if (reply->isOpen() && info->m_HasData) {

-      data = reply->readAll();

-      info->m_Output.write(data);

-    }

-    info->m_Output.close();

-    TaskProgressManager::instance().forgetMe(info->m_TaskProgressId);

-

-    bool error = false;

-    if ((info->m_State != STATE_CANCELING) &&

-        (info->m_State != STATE_PAUSING)) {

-      bool textData = reply->header(QNetworkRequest::ContentTypeHeader).toString().startsWith("text", Qt::CaseInsensitive);

-      if (textData)

-        emit showMessage(tr("Warning: Content type is: %1").arg(reply->header(QNetworkRequest::ContentTypeHeader).toString()));

-      if ((info->m_Output.size() == 0) ||

-          ((reply->error() != QNetworkReply::NoError)

-            && (reply->error() != QNetworkReply::OperationCanceledError))) {

-        if (reply->error() == QNetworkReply::UnknownContentError)

-          emit showMessage(tr("Download header content length: %1 downloaded file size: %2").arg(reply->header(QNetworkRequest::ContentLengthHeader).toLongLong()).arg(info->m_Output.size()));

-        if (info->m_Tries == 0) {

-          emit showMessage(tr("Download failed: %1 (%2)").arg(reply->errorString()).arg(reply->error()));

-        }

-        error = true;

-        setState(info, STATE_ERROR);

-      }

-    }

-

-    if (info->m_State == STATE_CANCELING) {

-      setState(info, STATE_CANCELED);

-    } else if (info->m_State == STATE_PAUSING) {

-      if (info->m_Output.isOpen() && info->m_HasData) {

-        info->m_Output.write(info->m_Reply->readAll());

-      }

-      setState(info, STATE_PAUSED);

-    }

-

-    if (info->m_State == STATE_CANCELED || (info->m_Tries == 0 && error)) {

-      emit aboutToUpdate();

-      info->m_Output.remove();

-      delete info;

-      m_ActiveDownloads.erase(m_ActiveDownloads.begin() + index);

-      if (error)

-        emit showMessage(tr("We were unable to download the file due to errors after four retries. There may be an issue with the Nexus servers."));

-      emit update(-1);

-    } else if (info->isPausedState() || info->m_State == STATE_PAUSING) {

-      info->m_Output.close();

-      createMetaFile(info);

-      emit update(index);

-    } else {

-      QString url = info->m_Urls[info->m_CurrentUrl];

-      if (info->m_FileInfo->userData.contains("downloadMap")) {

-        foreach (const QVariant &server, info->m_FileInfo->userData["downloadMap"].toList()) {

-          QVariantMap serverMap = server.toMap();

-          if (serverMap["URI"].toString() == url) {

-            int deltaTime = info->m_StartTime.secsTo(QTime::currentTime());

-            if (deltaTime > 5) {

-              emit downloadSpeed(serverMap["Name"].toString(), (info->m_TotalSize - info->m_PreResumeSize) / deltaTime);

-            } // no division by zero please! Also, if the download is shorter than a few seconds, the result is way to inprecise

-            break;

-          }

-        }

-      }

-

-      bool isNexus = info->m_FileInfo->repository == "Nexus";

-      // need to change state before changing the file name, otherwise .unfinished is appended

-      if (isNexus) {

-        setState(info, STATE_FETCHINGMODINFO);

-      } else {

-        setState(info, STATE_NOFETCH);

-      }

-

-      QString newName = getFileNameFromNetworkReply(reply);

-      QString oldName = QFileInfo(info->m_Output).fileName();

-

-			startDisableDirWatcher();

-      if (!newName.isEmpty() && (oldName.isEmpty())) {

-        info->setName(getDownloadFileName(newName), true);

-      } else {

-        info->setName(m_OutputDirectory + "/" + info->m_FileName, true); // don't rename but remove the ".unfinished" extension

-      }

-			endDisableDirWatcher();

-

-      if (!isNexus) {

-        setState(info, STATE_READY);

-      }

-

-      emit update(index);

-    }

-    reply->close();

-    reply->deleteLater();

-

-    if ((info->m_Tries > 0) && error) {

-      --info->m_Tries;

-      resumeDownloadInt(index);

-    }

-  } else {

-    qWarning("no download index %d", index);

-  }

-}

-

-

-void DownloadManager::downloadError(QNetworkReply::NetworkError error)

-{

-  if (error != QNetworkReply::OperationCanceledError) {

-    QNetworkReply *reply = qobject_cast<QNetworkReply*>(sender());

-    qWarning("%s (%d)", reply != nullptr ? qUtf8Printable(reply->errorString())

-                                         : "Download error occured",

-             error);

-  }

-}

-

-

-void DownloadManager::metaDataChanged()

-{

-  int index = 0;

-

-  DownloadInfo *info = findDownload(this->sender(), &index);

-  if (info != nullptr) {

-    QString newName = getFileNameFromNetworkReply(info->m_Reply);

-    if (!newName.isEmpty() && (info->m_FileName.isEmpty())) {

-			startDisableDirWatcher();

-      info->setName(getDownloadFileName(newName), true);

-			endDisableDirWatcher();

-      refreshAlphabeticalTranslation();

-      if (!info->m_Output.isOpen() && !info->m_Output.open(QIODevice::WriteOnly | QIODevice::Append)) {

-        reportError(tr("failed to re-open %1").arg(info->m_FileName));

-        setState(info, STATE_CANCELING);

-      }

-    }

-  } else {

-    qWarning("meta data event for unknown download");

-  }

-}

-

-void DownloadManager::directoryChanged(const QString&)

-{

-	if(DownloadManager::m_DirWatcherDisabler==0)

-		refreshList();

-}

-

-void DownloadManager::managedGameChanged(MOBase::IPluginGame const *managedGame)

-{

-  m_ManagedGame = managedGame;

-}

-

-void DownloadManager::checkDownloadTimeout()

-{

-  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {

-    if (m_ActiveDownloads[i]->m_StartTime.elapsed() - std::get<3>(m_ActiveDownloads[i]->m_SpeedDiff) > 5 * 1000 &&

-        m_ActiveDownloads[i]->m_State == STATE_DOWNLOADING && m_ActiveDownloads[i]->m_Reply != nullptr &&

-        m_ActiveDownloads[i]->m_Reply->isOpen()) {

-      pauseDownload(i);

-      downloadFinished(i);

-      resumeDownload(i);

-    }

-  }

-}

-

-void DownloadManager::writeData(DownloadInfo *info)

-{

-  if (info != nullptr) {

-    qint64 ret = info->m_Output.write(info->m_Reply->readAll());

-    if (ret < info->m_Reply->size()) {

-      QString fileName = info->m_FileName; // m_FileName may be destroyed after setState

-      setState(info, DownloadState::STATE_CANCELED);

-      qCritical(QString("Unable to write download \"%2\" to drive (return %1)").arg(ret).arg(info->m_FileName).toLocal8Bit());

-      reportError(tr("Unable to write download to drive (return %1).\n"

-                     "Check the drive's available storage.\n\n"

-                     "Canceling download \"%2\"...").arg(ret).arg(fileName));

-    }

-  }

-}

+/*
+Copyright (C) 2012 Sebastian Herbord. All rights reserved.
+
+This file is part of Mod Organizer.
+
+Mod Organizer 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 3 of the License, or
+(at your option) any later version.
+
+Mod Organizer 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 Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "downloadmanager.h"
+
+#include "nxmurl.h"
+#include "nexusinterface.h"
+#include "nxmaccessmanager.h"
+#include "iplugingame.h"
+#include "downloadmanager.h"
+#include <nxmurl.h>
+#include <taskprogressmanager.h>
+#include "utility.h"
+#include "selectiondialog.h"
+#include "bbcode.h"
+#include <utility.h>
+#include <report.h>
+
+#include <QTimer>
+#include <QFileInfo>
+#include <QRegExp>
+#include <QDirIterator>
+#include <QDesktopServices>
+#include <QInputDialog>
+#include <QMessageBox>
+#include <QCoreApplication>
+#include <QTextDocument>
+
+#include <boost/bind.hpp>
+#include <regex>
+
+
+using namespace MOBase;
+
+
+// TODO limit number of downloads, also display download during nxm requests, store modid/fileid with downloads
+
+
+static const char UNFINISHED[] = ".unfinished";
+
+unsigned int DownloadManager::DownloadInfo::s_NextDownloadID = 1U;
+int DownloadManager::m_DirWatcherDisabler = 0;
+
+
+DownloadManager::DownloadInfo *DownloadManager::DownloadInfo::createNew(const ModRepositoryFileInfo *fileInfo, const QStringList &URLs)
+{
+  DownloadInfo *info = new DownloadInfo;
+  info->m_DownloadID = s_NextDownloadID++;
+  info->m_StartTime.start();
+  info->m_PreResumeSize = 0LL;
+  info->m_Progress = std::make_pair<int, QString>(0, "0.0 B/s ");
+  info->m_ResumePos = 0;
+  info->m_FileInfo = new ModRepositoryFileInfo(*fileInfo);
+  info->m_Urls = URLs;
+  info->m_CurrentUrl = 0;
+  info->m_Tries = AUTOMATIC_RETRIES;
+  info->m_State = STATE_STARTED;
+  info->m_TaskProgressId = TaskProgressManager::instance().getId();
+  info->m_Reply = nullptr;
+
+  return info;
+}
+
+DownloadManager::DownloadInfo *DownloadManager::DownloadInfo::createFromMeta(const QString &filePath, bool showHidden, const QString outputDirectory)
+{
+  DownloadInfo *info = new DownloadInfo;
+
+  QString metaFileName = filePath + ".meta";
+  QFileInfo metaFileInfo(metaFileName);
+  if (QDir::fromNativeSeparators(metaFileInfo.path()).compare(QDir::fromNativeSeparators(outputDirectory), Qt::CaseInsensitive) != 0) return nullptr;
+  QSettings metaFile(metaFileName, QSettings::IniFormat);
+  if (!showHidden && metaFile.value("removed", false).toBool()) {
+    return nullptr;
+  } else {
+    info->m_Hidden = metaFile.value("removed", false).toBool();
+  }
+
+  QString fileName = QFileInfo(filePath).fileName();
+
+  if (fileName.endsWith(UNFINISHED)) {
+    info->m_FileName = fileName.mid(
+        0, fileName.length() - static_cast<int>(strlen(UNFINISHED)));
+    info->m_State = STATE_PAUSED;
+  } else {
+    info->m_FileName = fileName;
+
+    if (metaFile.value("paused", false).toBool()) {
+      info->m_State = STATE_PAUSED;
+    } else if (metaFile.value("uninstalled", false).toBool()) {
+      info->m_State = STATE_UNINSTALLED;
+    } else if (metaFile.value("installed", false).toBool()) {
+      info->m_State = STATE_INSTALLED;
+    } else {
+      info->m_State = STATE_READY;
+    }
+  }
+
+  info->m_DownloadID = s_NextDownloadID++;
+  info->m_Output.setFileName(filePath);
+  info->m_TotalSize = QFileInfo(filePath).size();
+  info->m_PreResumeSize = info->m_TotalSize;
+  info->m_CurrentUrl = 0;
+  info->m_Urls = metaFile.value("url", "").toString().split(";");
+  info->m_Tries = 0;
+  info->m_TaskProgressId = TaskProgressManager::instance().getId();
+  QString gameName = metaFile.value("gameName", "").toString();
+  int modID = metaFile.value("modID", 0).toInt();
+  int fileID = metaFile.value("fileID", 0).toInt();
+  info->m_FileInfo = new ModRepositoryFileInfo(gameName, modID, fileID);
+  info->m_FileInfo->name     = metaFile.value("name", "").toString();
+  if (info->m_FileInfo->name == "0") {
+    // bug in earlier version
+    info->m_FileInfo->name = "";
+  }
+  info->m_FileInfo->modName  = metaFile.value("modName", "").toString();
+  info->m_FileInfo->gameName = gameName;
+  info->m_FileInfo->modID  = modID;
+  info->m_FileInfo->fileID = fileID;
+  info->m_FileInfo->description = metaFile.value("description").toString();
+  info->m_FileInfo->version.parse(metaFile.value("version", "0").toString());
+  info->m_FileInfo->newestVersion.parse(metaFile.value("newestVersion", "0").toString());
+  info->m_FileInfo->categoryID = metaFile.value("category", 0).toInt();
+  info->m_FileInfo->fileCategory = metaFile.value("fileCategory", 0).toInt();
+  info->m_FileInfo->repository = metaFile.value("repository", "Nexus").toString();
+  info->m_FileInfo->userData = metaFile.value("userData").toMap();
+  info->m_Reply = nullptr;
+
+  return info;
+}
+
+void DownloadManager::startDisableDirWatcher()
+{
+	DownloadManager::m_DirWatcherDisabler++;
+}
+
+
+void DownloadManager::endDisableDirWatcher()
+{
+	if (DownloadManager::m_DirWatcherDisabler > 0)
+	{
+		if (DownloadManager::m_DirWatcherDisabler == 1)
+			QCoreApplication::processEvents();
+		DownloadManager::m_DirWatcherDisabler--;
+	}
+	else {
+		DownloadManager::m_DirWatcherDisabler = 0;
+	}
+}
+
+void DownloadManager::DownloadInfo::setName(QString newName, bool renameFile)
+{
+  QString oldMetaFileName = QString("%1.meta").arg(m_FileName);
+  m_FileName = QFileInfo(newName).fileName();
+  if ((m_State == DownloadManager::STATE_STARTED) ||
+      (m_State == DownloadManager::STATE_DOWNLOADING) ||
+      (m_State == DownloadManager::STATE_PAUSED)) {
+    newName.append(UNFINISHED);
+    oldMetaFileName = QString("%1%2.meta").arg(m_FileName).arg(UNFINISHED);
+  }
+  if (renameFile) {
+    if ((newName != m_Output.fileName()) && !m_Output.rename(newName)) {
+      reportError(tr("failed to rename \"%1\" to \"%2\"").arg(m_Output.fileName()).arg(newName));
+      return;
+    }
+
+    QFile metaFile(QFileInfo(newName).path() + "/" + oldMetaFileName);
+    if (metaFile.exists())
+      metaFile.rename(newName.mid(0).append(".meta"));
+  }
+  if (!m_Output.isOpen()) {
+    // can't set file name if it's open
+    m_Output.setFileName(newName);
+  }
+}
+
+bool DownloadManager::DownloadInfo::isPausedState()
+{
+  return m_State == STATE_PAUSED || m_State == STATE_ERROR;
+}
+
+QString DownloadManager::DownloadInfo::currentURL()
+{
+  return m_Urls[m_CurrentUrl];
+}
+
+
+DownloadManager::DownloadManager(NexusInterface *nexusInterface, QObject *parent)
+  : IDownloadManager(parent), m_NexusInterface(nexusInterface), m_DirWatcher(), m_ShowHidden(false)
+{
+  connect(&m_DirWatcher, SIGNAL(directoryChanged(QString)), this, SLOT(directoryChanged(QString)));
+  m_TimeoutTimer.setSingleShot(false);
+  //connect(&m_TimeoutTimer, SIGNAL(timeout()), this, SLOT(checkDownloadTimeout()));
+  m_TimeoutTimer.start(5 * 1000);
+}
+
+
+DownloadManager::~DownloadManager()
+{
+  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter) {
+    delete *iter;
+  }
+  m_ActiveDownloads.clear();
+}
+
+
+bool DownloadManager::downloadsInProgress()
+{
+  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter) {
+    if ((*iter)->m_State < STATE_READY) {
+      return true;
+    }
+  }
+  return false;
+}
+
+bool DownloadManager::downloadsInProgressNoPause()
+{
+  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter) {
+    if ((*iter)->m_State < STATE_READY && (*iter)->m_State != STATE_PAUSED) {
+      return true;
+    }
+  }
+  return false;
+}
+
+
+void DownloadManager::pauseAll()
+{
+
+  // first loop: pause all downloads
+  for (int i = 0; i < m_ActiveDownloads.count(); ++i) {
+    if (m_ActiveDownloads[i]->m_State < STATE_READY) {
+      pauseDownload(i);
+    }
+  }
+
+  ::Sleep(100);
+
+  bool done = false;
+  QTime startTime = QTime::currentTime();
+  // further loops: busy waiting for all downloads to complete. This could be neater...
+  while (!done && (startTime.secsTo(QTime::currentTime()) < 5)) {
+    QCoreApplication::processEvents();
+    done = true;
+    foreach (DownloadInfo *info, m_ActiveDownloads) {
+      if ((info->m_State < STATE_CANCELED) ||
+          (info->m_State == STATE_FETCHINGFILEINFO) ||
+          (info->m_State == STATE_FETCHINGMODINFO)) {
+        done = false;
+        break;
+      }
+    }
+    if (!done) {
+      ::Sleep(100);
+    }
+  }
+
+}
+
+
+void DownloadManager::setOutputDirectory(const QString &outputDirectory)
+{
+  QStringList directories = m_DirWatcher.directories();
+  if (directories.length() != 0) {
+    m_DirWatcher.removePaths(directories);
+  }
+  m_OutputDirectory = QDir::fromNativeSeparators(outputDirectory);
+  refreshList();
+  m_DirWatcher.addPath(m_OutputDirectory);
+}
+
+
+void DownloadManager::setPreferredServers(const std::map<QString, int> &preferredServers)
+{
+  m_PreferredServers = preferredServers;
+}
+
+
+void DownloadManager::setSupportedExtensions(const QStringList &extensions)
+{
+  m_SupportedExtensions = extensions;
+  refreshList();
+}
+
+void DownloadManager::setShowHidden(bool showHidden)
+{
+  m_ShowHidden = showHidden;
+  refreshList();
+}
+
+void DownloadManager::setPluginContainer(PluginContainer *pluginContainer)
+{
+  m_NexusInterface->setPluginContainer(pluginContainer);
+}
+
+
+
+
+
+
+void DownloadManager::refreshList()
+{
+  try {
+		//avoid triggering other refreshes
+		startDisableDirWatcher();
+
+    int downloadsBefore = m_ActiveDownloads.size();
+
+    // remove finished downloads
+    for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end();) {
+      if (((*iter)->m_State == STATE_READY) || ((*iter)->m_State == STATE_INSTALLED) || ((*iter)->m_State == STATE_UNINSTALLED)) {
+        delete *iter;
+        iter = m_ActiveDownloads.erase(iter);
+      } else {
+        ++iter;
+      }
+    }
+
+    QStringList nameFilters(m_SupportedExtensions);
+    foreach (const QString &extension, m_SupportedExtensions) {
+      nameFilters.append("*." + extension);
+    }
+
+    nameFilters.append(QString("*").append(UNFINISHED));
+    QDir dir(QDir::fromNativeSeparators(m_OutputDirectory));
+
+    // find orphaned meta files and delete them (sounds cruel but it's better for everyone)
+    QStringList orphans;
+    QStringList metaFiles = dir.entryList(QStringList() << "*.meta");
+    foreach (const QString &metaFile, metaFiles) {
+      QString baseFile = metaFile.left(metaFile.length() - 5);
+      if (!QFile::exists(dir.absoluteFilePath(baseFile))) {
+        orphans.append(dir.absoluteFilePath(metaFile));
+      }
+    }
+    if (orphans.size() > 0) {
+      qDebug("%d orphaned meta files will be deleted", orphans.size());
+      shellDelete(orphans, true);
+    }
+
+    // add existing downloads to list
+    foreach (QString file, dir.entryList(nameFilters, QDir::Files, QDir::Time)) {
+      bool Exists = false;
+      for (QVector<DownloadInfo*>::const_iterator Iter = m_ActiveDownloads.begin(); Iter != m_ActiveDownloads.end() && !Exists; ++Iter) {
+        if (QString::compare((*Iter)->m_FileName, file, Qt::CaseInsensitive) == 0) {
+          Exists = true;
+        } else if (QString::compare(QFileInfo((*Iter)->m_Output.fileName()).fileName(), file, Qt::CaseInsensitive) == 0) {
+          Exists = true;
+        }
+      }
+      if (Exists) {
+        continue;
+      }
+
+      QString fileName = QDir::fromNativeSeparators(m_OutputDirectory) + "/" + file;
+
+      DownloadInfo *info = DownloadInfo::createFromMeta(fileName, m_ShowHidden, m_OutputDirectory);
+      if (info != nullptr) {
+        m_ActiveDownloads.push_front(info);
+      }
+    }
+
+    //if (m_ActiveDownloads.size() != downloadsBefore) {
+      qDebug("Downloads after refresh: %d", m_ActiveDownloads.size());
+    //}
+    emit update(-1);
+
+		//let watcher trigger refreshes again
+		endDisableDirWatcher();
+
+  } catch (const std::bad_alloc&) {
+    reportError(tr("Memory allocation error (in refreshing directory)."));
+  }
+}
+
+
+bool DownloadManager::addDownload(const QStringList &URLs, QString gameName,
+                                  int modID, int fileID, const ModRepositoryFileInfo *fileInfo)
+{
+  QString fileName = QFileInfo(URLs.first()).fileName();
+  if (fileName.isEmpty()) {
+    fileName = "unknown";
+  }
+
+  QUrl preferredUrl = QUrl::fromEncoded(URLs.first().toLocal8Bit());
+  qDebug("selected download url: %s", qUtf8Printable(preferredUrl.toString()));
+  QNetworkRequest request(preferredUrl);
+  request.setHeader(QNetworkRequest::UserAgentHeader, m_NexusInterface->getAccessManager()->userAgent());
+  return addDownload(m_NexusInterface->getAccessManager()->get(request), URLs, fileName, gameName, modID, fileID, fileInfo);
+}
+
+
+bool DownloadManager::addDownload(QNetworkReply *reply, const ModRepositoryFileInfo *fileInfo)
+{
+  QString fileName = getFileNameFromNetworkReply(reply);
+  if (fileName.isEmpty()) {
+    fileName = "unknown";
+  }
+
+  return addDownload(reply, QStringList(reply->url().toString()), fileName, fileInfo->gameName, fileInfo->modID, fileInfo->fileID, fileInfo);
+}
+
+
+bool DownloadManager::addDownload(QNetworkReply *reply, const QStringList &URLs, const QString &fileName,
+                                  QString gameName, int modID, int fileID, const ModRepositoryFileInfo *fileInfo)
+{
+  // download invoked from an already open network reply (i.e. download link in the browser)
+  DownloadInfo *newDownload = DownloadInfo::createNew(fileInfo, URLs);
+
+  QString baseName = fileName;
+  if (!fileInfo->fileName.isEmpty()) {
+    baseName = fileInfo->fileName;
+  } else {
+    QString dispoName = getFileNameFromNetworkReply(reply);
+
+    if (!dispoName.isEmpty()) {
+      baseName = dispoName;
+    }
+  }
+
+	startDisableDirWatcher();
+  newDownload->setName(getDownloadFileName(baseName), false);
+	endDisableDirWatcher();
+
+  startDownload(reply, newDownload, false);
+//  emit update(-1);
+  return true;
+}
+
+
+void DownloadManager::removePending(QString gameName, int modID, int fileID)
+{
+  emit aboutToUpdate();
+  for (auto iter : m_PendingDownloads) {
+    if (gameName.compare(std::get<0>(iter), Qt::CaseInsensitive) == 0 && (std::get<1>(iter) == modID) && (std::get<2>(iter) == fileID)) {
+      m_PendingDownloads.removeAt(m_PendingDownloads.indexOf(iter));
+      break;
+    }
+  }
+  emit update(-1);
+}
+
+
+void DownloadManager::startDownload(QNetworkReply *reply, DownloadInfo *newDownload, bool resume)
+{
+  reply->setReadBufferSize(1024 * 1024); // don't read more than 1MB at once to avoid memory troubles
+  newDownload->m_Reply = reply;
+  setState(newDownload, STATE_DOWNLOADING);
+  if (newDownload->m_Urls.count() == 0) {
+    newDownload->m_Urls = QStringList(reply->url().toString());
+  }
+
+  QIODevice::OpenMode mode = QIODevice::WriteOnly;
+  if (resume) {
+    mode |= QIODevice::Append;
+  }
+
+  newDownload->m_StartTime.start();
+  createMetaFile(newDownload);
+
+  if (!newDownload->m_Output.open(mode)) {
+    reportError(tr("failed to download %1: could not open output file: %2")
+                .arg(reply->url().toString()).arg(newDownload->m_Output.fileName()));
+    return;
+  }
+
+  connect(newDownload->m_Reply, SIGNAL(downloadProgress(qint64, qint64)), this, SLOT(downloadProgress(qint64, qint64)));
+  connect(newDownload->m_Reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(downloadError(QNetworkReply::NetworkError)));
+  connect(newDownload->m_Reply, SIGNAL(readyRead()), this, SLOT(downloadReadyRead()));
+  connect(newDownload->m_Reply, SIGNAL(metaDataChanged()), this, SLOT(metaDataChanged()));
+
+  if (!resume) {
+    newDownload->m_PreResumeSize = newDownload->m_Output.size();
+    removePending(newDownload->m_FileInfo->gameName, newDownload->m_FileInfo->modID, newDownload->m_FileInfo->fileID);
+
+    emit aboutToUpdate();
+    m_ActiveDownloads.append(newDownload);
+
+    emit update(-1);
+    emit downloadAdded();
+
+    if (QFile::exists(m_OutputDirectory + "/" + newDownload->m_FileName)) {
+      setState(newDownload, STATE_PAUSING);
+      QCoreApplication::processEvents();
+      if (QMessageBox::question(nullptr, tr("Download again?"), tr("A file with the same name \"%1\" has already been downloaded. "
+          "Do you want to download it again? The new file will receive a different name.").arg(newDownload->m_FileName),
+          QMessageBox::Yes | QMessageBox::No) == QMessageBox::No) {
+        if (reply->isFinished())
+          setState(newDownload, STATE_CANCELED);
+        else
+          setState(newDownload, STATE_CANCELING);
+      } else {
+				startDisableDirWatcher();
+        newDownload->setName(getDownloadFileName(newDownload->m_FileName, true), true);
+				endDisableDirWatcher();
+        if (newDownload->m_State == STATE_PAUSED)
+          resumeDownload(indexByName(newDownload->m_FileName));
+        else
+          setState(newDownload, STATE_DOWNLOADING);
+      }
+    } else
+      connect(newDownload->m_Reply, SIGNAL(finished()), this, SLOT(downloadFinished()));
+
+
+    QCoreApplication::processEvents();
+
+    if (newDownload->m_State != STATE_DOWNLOADING &&
+      newDownload->m_State != STATE_READY &&
+      newDownload->m_State != STATE_FETCHINGMODINFO &&
+      reply->isFinished()) {
+      downloadFinished(indexByName(newDownload->m_FileName));
+      return;
+    }
+  } else
+    connect(newDownload->m_Reply, SIGNAL(finished()), this, SLOT(downloadFinished()));
+}
+
+
+void DownloadManager::addNXMDownload(const QString &url)
+{
+  NXMUrl nxmInfo(url);
+
+  QStringList validGames;
+  validGames.append(m_ManagedGame->gameShortName());
+  validGames.append(m_ManagedGame->validShortNames());
+  qDebug("add nxm download: %s", qUtf8Printable(url));
+  if (!validGames.contains(nxmInfo.game(), Qt::CaseInsensitive)) {
+    qDebug("download requested for wrong game (game: %s, url: %s)", qUtf8Printable(m_ManagedGame->gameShortName()), qUtf8Printable(nxmInfo.game()));
+    QMessageBox::information(nullptr, tr("Wrong Game"), tr("The download link is for a mod for \"%1\" but this instance of MO "
+    "has been set up for \"%2\".").arg(nxmInfo.game()).arg(m_ManagedGame->gameShortName()), QMessageBox::Ok);
+    return;
+  }
+
+  for (auto tuple : m_PendingDownloads) {
+    if (std::get<0>(tuple).compare(nxmInfo.game(), Qt::CaseInsensitive) == 0, std::get<1>(tuple) == nxmInfo.modId() && std::get<2>(tuple) == nxmInfo.fileId()) {
+      qDebug("download requested is already started (mod id: %s, file id: %s)", qUtf8Printable(QString(nxmInfo.modId())), qUtf8Printable(QString(nxmInfo.fileId())));
+      QMessageBox::information(nullptr, tr("Already Started"), tr("A download for this mod file has already been queued."), QMessageBox::Ok);
+      return;
+    }
+  }
+
+  for (DownloadInfo *download : m_ActiveDownloads) {
+    if (download->m_FileInfo->modID == nxmInfo.modId() && download->m_FileInfo->fileID == nxmInfo.fileId()) {
+      if (download->m_State == STATE_DOWNLOADING || download->m_State == STATE_PAUSED || download->m_State == STATE_STARTED) {
+        qDebug("download requested is already started (mod: %s, file: %s)", qUtf8Printable(QString(download->m_FileInfo->modID)),
+          qUtf8Printable(download->m_FileInfo->fileName));
+
+        QMessageBox::information(nullptr, tr("Already Started"), tr("There is already a download started for this file (mod: %1, file: %2).")
+          .arg(download->m_FileInfo->modName).arg(download->m_FileInfo->fileName), QMessageBox::Ok);
+        return;
+      }
+    }
+  }
+
+  emit aboutToUpdate();
+
+  m_PendingDownloads.append(std::make_tuple(nxmInfo.game(), nxmInfo.modId(), nxmInfo.fileId()));
+
+  emit update(-1);
+  emit downloadAdded();
+  m_RequestIDs.insert(m_NexusInterface->requestFileInfo(nxmInfo.game(), nxmInfo.modId(), nxmInfo.fileId(), this, nxmInfo.fileId(), ""));
+}
+
+
+void DownloadManager::removeFile(int index, bool deleteFile)
+{
+	//Avoid triggering refreshes from DirWatcher
+	startDisableDirWatcher();
+
+  if (index >= m_ActiveDownloads.size()) {
+    throw MyException(tr("remove: invalid download index %1").arg(index));
+  }
+
+  DownloadInfo *download = m_ActiveDownloads.at(index);
+  QString filePath = m_OutputDirectory + "/" + download->m_FileName;
+  if ((download->m_State == STATE_STARTED) ||
+      (download->m_State == STATE_DOWNLOADING)) {
+    // shouldn't have been possible
+    qCritical("tried to remove active download");
+		endDisableDirWatcher();
+    return;
+  }
+
+  if ((download->m_State == STATE_PAUSED) || (download->m_State == STATE_ERROR)) {
+    filePath = download->m_Output.fileName();
+  }
+
+  if (deleteFile) {
+    if (!shellDelete(QStringList(filePath), true)) {
+      reportError(tr("failed to delete %1").arg(filePath));
+			endDisableDirWatcher();
+      return;
+    }
+
+    QFile metaFile(filePath.append(".meta"));
+    if (metaFile.exists() && !shellDelete(QStringList(filePath), true)) {
+      reportError(tr("failed to delete meta file for %1").arg(filePath));
+    }
+  } else {
+    QSettings metaSettings(filePath.append(".meta"), QSettings::IniFormat);
+		if(!download->m_Hidden)
+			metaSettings.setValue("removed", true);
+  }
+
+	endDisableDirWatcher();
+}
+
+class LessThanWrapper
+{
+public:
+  LessThanWrapper(DownloadManager *manager) : m_Manager(manager) {}
+  bool operator()(int LHS, int RHS) {
+    return m_Manager->getFileName(LHS).compare(m_Manager->getFileName(RHS), Qt::CaseInsensitive) < 0;
+
+  }
+
+private:
+  DownloadManager *m_Manager;
+};
+
+
+bool DownloadManager::ByName(int LHS, int RHS)
+{
+  return m_ActiveDownloads[LHS]->m_FileName < m_ActiveDownloads[RHS]->m_FileName;
+}
+
+
+void DownloadManager::refreshAlphabeticalTranslation()
+{
+  m_AlphabeticalTranslation.clear();
+  int pos = 0;
+  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter, ++pos) {
+    m_AlphabeticalTranslation.push_back(pos);
+  }
+
+  qSort(m_AlphabeticalTranslation.begin(), m_AlphabeticalTranslation.end(), LessThanWrapper(this));
+}
+
+
+void DownloadManager::restoreDownload(int index)
+{
+
+	if (index < 0) {
+		DownloadState minState = STATE_READY ;
+		index = 0;
+
+		for (QVector<DownloadInfo*>::const_iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter ) {
+
+			if ((*iter)->m_State >= minState) {
+				restoreDownload(index);
+			}
+			index++;
+		}
+	}
+	else {
+		if (index >= m_ActiveDownloads.size()) {
+			throw MyException(tr("restore: invalid download index: %1").arg(index));
+		}
+
+		DownloadInfo *download = m_ActiveDownloads.at(index);
+		if (download->m_Hidden) {
+			download->m_Hidden = false;
+
+			QString filePath = m_OutputDirectory + "/" + download->m_FileName;
+
+			//avoid dirWatcher triggering refreshes
+			startDisableDirWatcher();
+				QSettings metaSettings(filePath.append(".meta"), QSettings::IniFormat);
+			metaSettings.setValue("removed", false);
+
+			endDisableDirWatcher();
+		}
+	}
+}
+
+
+void DownloadManager::removeDownload(int index, bool deleteFile)
+{
+  try {
+		//avoid dirWatcher triggering refreshes
+		startDisableDirWatcher();
+
+    emit aboutToUpdate();
+
+    if (index < 0) {
+      bool removeAll = (index == -1);
+      DownloadState removeState = (index == -2 ? STATE_INSTALLED : STATE_UNINSTALLED);
+
+			index = 0;
+      for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end();) {
+        DownloadState downloadState = (*iter)->m_State;
+				if ((removeAll && (downloadState >= STATE_READY)) ||
+            (removeState == downloadState)) {
+					removeFile(index, deleteFile);
+					delete *iter;
+					iter = m_ActiveDownloads.erase(iter);
+				} else {
+					++iter;
+					++index;
+				}
+			}
+    } else {
+      if (index >= m_ActiveDownloads.size()) {
+        reportError(tr("remove: invalid download index %1").arg(index));
+				//emit update(-1);
+				endDisableDirWatcher();
+        return;
+      }
+
+      removeFile(index, deleteFile);
+      delete m_ActiveDownloads.at(index);
+      m_ActiveDownloads.erase(m_ActiveDownloads.begin() + index);
+    }
+    emit update(-1);
+		endDisableDirWatcher();
+  } catch (const std::exception &e) {
+    qCritical("failed to remove download: %s", e.what());
+  }
+	refreshList();
+}
+
+
+void DownloadManager::cancelDownload(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("cancel: invalid download index %1").arg(index));
+    return;
+  }
+
+  if (m_ActiveDownloads.at(index)->m_State == STATE_DOWNLOADING) {
+    setState(m_ActiveDownloads.at(index), STATE_CANCELING);
+  }
+}
+
+
+void DownloadManager::pauseDownload(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("pause: invalid download index %1").arg(index));
+    return;
+  }
+
+  DownloadInfo *info = m_ActiveDownloads.at(index);
+
+  if (info->m_State == STATE_DOWNLOADING) {
+    if ((info->m_Reply != nullptr) && (info->m_Reply->isRunning())) {
+      setState(info, STATE_PAUSING);
+    } else {
+      setState(info, STATE_PAUSED);
+    }
+  } else if ((info->m_State == STATE_FETCHINGMODINFO) || (info->m_State == STATE_FETCHINGFILEINFO)) {
+    setState(info, STATE_READY);
+  }
+}
+
+void DownloadManager::resumeDownload(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("resume: invalid download index %1").arg(index));
+    return;
+  }
+  DownloadInfo *info = m_ActiveDownloads[index];
+  info->m_Tries = AUTOMATIC_RETRIES;
+  resumeDownloadInt(index);
+}
+
+void DownloadManager::resumeDownloadInt(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("resume (int): invalid download index %1").arg(index));
+    return;
+  }
+  DownloadInfo *info = m_ActiveDownloads[index];
+
+  // Check for finished download;
+  if (info->m_TotalSize <= info->m_Output.size() && info->m_Reply != nullptr
+      && info->m_Reply->isOpen() && info->m_Reply->isFinished() && info->m_State != STATE_ERROR) {
+    setState(info, STATE_DOWNLOADING);
+    downloadFinished(index);
+    return;
+  }
+
+  if (info->isPausedState() || info->m_State == STATE_PAUSING) {
+    if (info->m_State == STATE_PAUSING) {
+      if (info->m_Output.isOpen()) {
+        writeData(info);
+        if (info->m_State == STATE_PAUSING) {
+          setState(info, STATE_PAUSED);
+        }
+      }
+    }
+    if ((info->m_Urls.size() == 0)
+        || ((info->m_Urls.size() == 1) && (info->m_Urls[0].size() == 0))) {
+      emit showMessage(tr("No known download urls. Sorry, this download can't be resumed."));
+      return;
+    }
+    if (info->m_State == STATE_ERROR) {
+      info->m_CurrentUrl = (info->m_CurrentUrl + 1) % info->m_Urls.count();
+    }
+    qDebug("request resume from url %s", qUtf8Printable(info->currentURL()));
+    QNetworkRequest request(QUrl::fromEncoded(info->currentURL().toLocal8Bit()));
+    request.setHeader(QNetworkRequest::UserAgentHeader, m_NexusInterface->getAccessManager()->userAgent());
+    if (info->m_State != STATE_ERROR) {
+      info->m_ResumePos = info->m_Output.size();
+      QByteArray rangeHeader = "bytes=" + QByteArray::number(info->m_ResumePos) + "-";
+      request.setRawHeader("Range", rangeHeader);
+    }
+    std::get<0>(info->m_SpeedDiff) = 0;
+    std::get<1>(info->m_SpeedDiff) = 0;
+    std::get<2>(info->m_SpeedDiff) = 0;
+    std::get<3>(info->m_SpeedDiff) = 0;
+    std::get<4>(info->m_SpeedDiff) = 0;
+    qDebug("resume at %lld bytes", info->m_ResumePos);
+    startDownload(m_NexusInterface->getAccessManager()->get(request), info, true);
+  }
+  emit update(index);
+}
+
+
+DownloadManager::DownloadInfo *DownloadManager::downloadInfoByID(unsigned int id)
+{
+  auto iter = std::find_if(m_ActiveDownloads.begin(), m_ActiveDownloads.end(),
+               [id](DownloadInfo *info) { return info->m_DownloadID == id; });
+  if (iter != m_ActiveDownloads.end()) {
+    return *iter;
+  } else {
+    return nullptr;
+  }
+}
+
+
+void DownloadManager::queryInfo(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("query: invalid download index %1").arg(index));
+    return;
+  }
+  DownloadInfo *info = m_ActiveDownloads[index];
+
+  if (info->m_FileInfo->repository != "Nexus") {
+    qWarning("re-querying file info is currently only possible with Nexus");
+    return;
+  }
+
+  if (info->m_State < DownloadManager::STATE_READY) {
+    // UI shouldn't allow this
+    return;
+  }
+
+  if (info->m_FileInfo->modID <= 0) {
+    QString fileName = getFileName(index);
+    QString ignore;
+    NexusInterface::interpretNexusFileName(fileName, ignore, info->m_FileInfo->modID, true);
+    if (info->m_FileInfo->modID < 0) {
+      bool ok = false;
+      int modId = QInputDialog::getInt(
+          nullptr, tr("Please enter the nexus mod id"), tr("Mod ID:"), 1, 1,
+          std::numeric_limits<int>::max(), 1, &ok);
+      // careful now: while the dialog was displayed, events were processed.
+      // the download list might have changed and our info-ptr invalidated.
+      if (ok)
+        m_ActiveDownloads[index]->m_FileInfo->modID = modId;
+      return;
+    }
+  }
+
+  if (info->m_FileInfo->gameName.size() == 0) {
+    SelectionDialog selection(tr("Please select the source game code for %1").arg(getFileName(index)));
+
+    std::vector<std::pair<QString, QString>> choices = m_NexusInterface->getGameChoices(m_ManagedGame);
+    for (auto choice : choices) {
+      selection.addChoice(choice.first, choice.second, choice.first);
+    }
+    if (selection.exec() == QDialog::Accepted) {
+      info->m_FileInfo->gameName = selection.getChoiceData().toString();
+    } else {
+      info->m_FileInfo->gameName = m_ManagedGame->gameShortName();
+    }
+  }
+  info->m_ReQueried = true;
+  setState(info, STATE_FETCHINGMODINFO);
+}
+
+void DownloadManager::visitOnNexus(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("VisitNexus: invalid download index %1").arg(index));
+    return;
+  }
+  DownloadInfo *info = m_ActiveDownloads[index];
+
+  if (info->m_FileInfo->repository != "Nexus") {
+    qWarning("Visiting mod page is currently only possible with Nexus");
+    return;
+  }
+
+  if (info->m_State < DownloadManager::STATE_READY) {
+    // UI shouldn't allow this
+    return;
+  }
+  int modID = info->m_FileInfo->modID;
+
+  QString gameName = info->m_FileInfo->gameName;
+  if (modID > 0) {
+    QDesktopServices::openUrl(QUrl(m_NexusInterface->getModURL(modID, gameName)));
+  }
+  else {
+    emit showMessage(tr("Nexus ID for this Mod is unknown"));
+  }
+}
+
+void DownloadManager::openFile(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("OpenFile: invalid download index %1").arg(index));
+    return;
+  }
+  QDir path = QDir(m_OutputDirectory);
+  if (path.exists(getFileName(index))) {
+
+    ::ShellExecuteW(nullptr, L"open", ToWString(QDir::toNativeSeparators(getFilePath(index))).c_str(), nullptr, nullptr, SW_SHOWNORMAL);
+    return;
+  }
+
+  ::ShellExecuteW(nullptr, L"explore", ToWString(QDir::toNativeSeparators(m_OutputDirectory)).c_str(), nullptr, nullptr, SW_SHOWNORMAL);
+  return;
+}
+
+void DownloadManager::openInDownloadsFolder(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    reportError(tr("OpenFileInDownloadsFolder: invalid download index %1").arg(index));
+    return;
+  }
+  QString params = "/select,\"";
+  QDir path = QDir(m_OutputDirectory);
+  if (path.exists(getFileName(index))) {
+    params = params + QDir::toNativeSeparators(getFilePath(index)) + "\"";
+
+    ::ShellExecuteW(nullptr, nullptr, L"explorer", ToWString(params).c_str(), nullptr, SW_SHOWNORMAL);
+    return;
+  }
+  else if (path.exists(getFileName(index) + ".unfinished")) {
+    params = params + QDir::toNativeSeparators(getFilePath(index)+".unfinished") + "\"";
+
+    ::ShellExecuteW(nullptr, nullptr, L"explorer", ToWString(params).c_str(), nullptr, SW_SHOWNORMAL);
+    return;
+  }
+
+  ::ShellExecuteW(nullptr, L"explore", ToWString(QDir::toNativeSeparators(m_OutputDirectory)).c_str(), nullptr, nullptr, SW_SHOWNORMAL);
+  return;
+}
+
+
+int DownloadManager::numTotalDownloads() const
+{
+  return m_ActiveDownloads.size();
+}
+
+int DownloadManager::numPendingDownloads() const
+{
+  return m_PendingDownloads.size();
+}
+
+std::tuple<QString, int, int> DownloadManager::getPendingDownload(int index)
+{
+  if ((index < 0) || (index >= m_PendingDownloads.size())) {
+    throw MyException(tr("get pending: invalid download index %1").arg(index));
+  }
+
+  return m_PendingDownloads.at(index);
+}
+
+QString DownloadManager::getFilePath(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("get path: invalid download index %1").arg(index));
+  }
+
+  return m_OutputDirectory + "/" + m_ActiveDownloads.at(index)->m_FileName;
+}
+
+QString DownloadManager::getFileTypeString(int fileType)
+{
+  switch (fileType) {
+    case 1: return tr("Main");
+    case 2: return tr("Update");
+    case 3: return tr("Optional");
+    case 4: return tr("Old");
+    case 5: return tr("Misc");
+    default: return tr("Unknown");
+  }
+}
+
+QString DownloadManager::getDisplayName(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("display name: invalid download index %1").arg(index));
+  }
+
+  DownloadInfo *info = m_ActiveDownloads.at(index);
+
+  QTextDocument doc;
+  if (!info->m_FileInfo->name.isEmpty()) {
+    doc.setHtml(info->m_FileInfo->name);
+    return QString("%1 (%2, v%3)").arg(doc.toPlainText())
+                                  .arg(getFileTypeString(info->m_FileInfo->fileCategory))
+                                  .arg(info->m_FileInfo->version.displayString());
+  } else {
+    doc.setHtml(info->m_FileName);
+    return doc.toPlainText();
+  }
+}
+
+QString DownloadManager::getFileName(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("file name: invalid download index %1").arg(index));
+  }
+
+  return m_ActiveDownloads.at(index)->m_FileName;
+}
+
+QDateTime DownloadManager::getFileTime(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("file time: invalid download index %1").arg(index));
+  }
+
+  DownloadInfo *info = m_ActiveDownloads.at(index);
+  if (!info->m_Created.isValid()) {
+    info->m_Created = QFileInfo(info->m_Output).created();
+  }
+
+  return info->m_Created;
+}
+
+qint64 DownloadManager::getFileSize(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("file size: invalid download index %1").arg(index));
+  }
+
+  return m_ActiveDownloads.at(index)->m_TotalSize;
+}
+
+
+std::pair<int, QString> DownloadManager::getProgress(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("progress: invalid download index %1").arg(index));
+  }
+
+  return m_ActiveDownloads.at(index)->m_Progress;
+}
+
+
+DownloadManager::DownloadState DownloadManager::getState(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("state: invalid download index %1").arg(index));
+  }
+
+  return m_ActiveDownloads.at(index)->m_State;
+}
+
+
+bool DownloadManager::isInfoIncomplete(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("infocomplete: invalid download index %1").arg(index));
+  }
+
+  DownloadInfo *info = m_ActiveDownloads.at(index);
+  if (info->m_FileInfo->repository != "Nexus") {
+    // other repositories currently don't support re-querying info anyway
+    return false;
+  }
+  return (info->m_FileInfo->fileID == 0) || (info->m_FileInfo->modID == 0);
+}
+
+
+int DownloadManager::getModID(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("mod id: invalid download index %1").arg(index));
+  }
+  return m_ActiveDownloads.at(index)->m_FileInfo->modID;
+}
+
+QString DownloadManager::getGameName(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("mod id: invalid download index %1").arg(index));
+  }
+  return m_ActiveDownloads.at(index)->m_FileInfo->gameName;
+}
+
+bool DownloadManager::isHidden(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("ishidden: invalid download index %1").arg(index));
+  }
+  return m_ActiveDownloads.at(index)->m_Hidden;
+}
+
+
+const ModRepositoryFileInfo *DownloadManager::getFileInfo(int index) const
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("file info: invalid download index %1").arg(index));
+  }
+
+  return m_ActiveDownloads.at(index)->m_FileInfo;
+}
+
+
+void DownloadManager::markInstalled(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("mark installed: invalid download index %1").arg(index));
+  }
+
+	//Avoid triggering refreshes from DirWatcher
+	startDisableDirWatcher();
+
+  DownloadInfo *info = m_ActiveDownloads.at(index);
+  QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);
+  metaFile.setValue("installed", true);
+  metaFile.setValue("uninstalled", false);
+
+	endDisableDirWatcher();
+
+  setState(m_ActiveDownloads.at(index), STATE_INSTALLED);
+}
+
+void DownloadManager::markInstalled(QString fileName)
+{
+  int index = indexByName(fileName);
+  if (index >= 0) {
+    markInstalled(index);
+  } else {
+    DownloadInfo *info = getDownloadInfo(fileName);
+    if (info != nullptr) {
+			//Avoid triggering refreshes from DirWatcher
+			startDisableDirWatcher();
+
+      QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);
+      metaFile.setValue("installed", true);
+      metaFile.setValue("uninstalled", false);
+      delete info;
+
+			endDisableDirWatcher();
+    }
+  }
+}
+
+DownloadManager::DownloadInfo* DownloadManager::getDownloadInfo(QString fileName)
+{
+  return DownloadInfo::createFromMeta(fileName, true, m_OutputDirectory);
+}
+
+void DownloadManager::markUninstalled(int index)
+{
+  if ((index < 0) || (index >= m_ActiveDownloads.size())) {
+    throw MyException(tr("mark uninstalled: invalid download index %1").arg(index));
+  }
+
+	//Avoid triggering refreshes from DirWatcher
+	startDisableDirWatcher();
+
+  DownloadInfo *info = m_ActiveDownloads.at(index);
+  QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);
+  metaFile.setValue("uninstalled", true);
+
+	endDisableDirWatcher();
+
+  setState(m_ActiveDownloads.at(index), STATE_UNINSTALLED);
+}
+
+
+void DownloadManager::markUninstalled(QString fileName)
+{
+  int index = indexByName(fileName);
+  if (index >= 0) {
+    markUninstalled(index);
+  } else {
+    QString filePath = QDir::fromNativeSeparators(m_OutputDirectory) + "/" + fileName;
+    DownloadInfo *info = getDownloadInfo(filePath);
+    if (info != nullptr) {
+
+			//Avoid triggering refreshes from DirWatcher
+			startDisableDirWatcher();
+
+      QSettings metaFile(info->m_Output.fileName() + ".meta", QSettings::IniFormat);
+      metaFile.setValue("uninstalled", true);
+      delete info;
+
+			endDisableDirWatcher();
+    }
+  }
+}
+
+
+QString DownloadManager::getDownloadFileName(const QString &baseName, bool rename) const
+{
+  QString fullPath = m_OutputDirectory + "/" + baseName;
+  if (QFile::exists(fullPath) && rename) {
+    int i = 1;
+    while (QFile::exists(QString("%1/%2_%3").arg(m_OutputDirectory).arg(i).arg(baseName))) {
+      ++i;
+    }
+
+    fullPath = QString("%1/%2_%3").arg(m_OutputDirectory).arg(i).arg(baseName);
+  }
+  return fullPath;
+}
+
+
+QString DownloadManager::getFileNameFromNetworkReply(QNetworkReply *reply)
+{
+  if (reply->hasRawHeader("Content-Disposition")) {
+    std::regex exp("filename=\"(.*)\"");
+
+    std::cmatch result;
+    if (std::regex_search(reply->rawHeader("Content-Disposition").constData(), result, exp)) {
+      return QString::fromUtf8(result.str(1).c_str());
+    }
+  }
+
+  return QString();
+}
+
+
+void DownloadManager::setState(DownloadManager::DownloadInfo *info, DownloadManager::DownloadState state)
+{
+  int row = 0;
+  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {
+    if (m_ActiveDownloads[i] == info) {
+      row = i;
+      break;
+    }
+  }
+  info->m_State = state;
+  switch (state) {
+    case STATE_PAUSED:
+    case STATE_ERROR: {
+      info->m_Reply->abort();
+      info->m_Output.close();
+    } break;
+    case STATE_CANCELED: {
+      info->m_Reply->abort();
+    } break;
+    case STATE_FETCHINGMODINFO: {
+      m_RequestIDs.insert(m_NexusInterface->requestDescription(info->m_FileInfo->gameName, info->m_FileInfo->modID, this, info->m_DownloadID, QString()));
+    } break;
+    case STATE_FETCHINGFILEINFO: {
+      m_RequestIDs.insert(m_NexusInterface->requestFiles(info->m_FileInfo->gameName, info->m_FileInfo->modID, this, info->m_DownloadID, QString()));
+    } break;
+    case STATE_READY: {
+      createMetaFile(info);
+      emit downloadComplete(row);
+    } break;
+    default: /* NOP */ break;
+  }
+  emit stateChanged(row, state);
+}
+
+
+DownloadManager::DownloadInfo *DownloadManager::findDownload(QObject *reply, int *index) const
+{
+  // reverse search as newer, thus more relevant, downloads are at the end
+  for (int i = m_ActiveDownloads.size() - 1; i >= 0; --i) {
+    if (m_ActiveDownloads[i]->m_Reply == reply) {
+      if (index != nullptr) {
+        *index = i;
+      }
+      return m_ActiveDownloads[i];
+    }
+  }
+  return nullptr;
+}
+
+
+void DownloadManager::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
+{
+  if (bytesTotal == 0) {
+    return;
+  }
+  int index = 0;
+  try {
+    DownloadInfo *info = findDownload(this->sender(), &index);
+    if (info != nullptr) {
+      info->m_HasData = true;
+      if (info->m_State == STATE_CANCELING) {
+        setState(info, STATE_CANCELED);
+      } else if (info->m_State == STATE_PAUSING) {
+        setState(info, STATE_PAUSED);
+      }
+      else {
+        if (bytesTotal > info->m_TotalSize) {
+          info->m_TotalSize = bytesTotal;
+        }
+        int oldProgress = info->m_Progress.first;
+        info->m_Progress.first = ((info->m_ResumePos + bytesReceived) * 100) / (info->m_ResumePos + bytesTotal);
+
+        int elapsed = info->m_StartTime.elapsed();
+        std::get<0>(info->m_SpeedDiff) = bytesReceived - std::get<2>(info->m_SpeedDiff);
+        std::get<1>(info->m_SpeedDiff) = elapsed - std::get<3>(info->m_SpeedDiff);
+        std::get<2>(info->m_SpeedDiff) = bytesReceived;
+        std::get<3>(info->m_SpeedDiff) = elapsed;
+
+        double calc = ((double)std::get<0>(info->m_SpeedDiff)) / (((double)(std::get<1>(info->m_SpeedDiff)) / 5000.0));
+        std::get<4>(info->m_SpeedDiff) = ((calc*0.5) + (std::get<4>(info->m_SpeedDiff)*1.5)) / 2;
+
+        // calculate the download speed
+        double speed = (std::get<4>(info->m_SpeedDiff) * 1000.0) / (5 * 1000);
+
+        QString unit;
+        if (speed < 1000) {
+          unit = "B/s";
+        }
+        else if (speed < 1000*1024) {
+          speed /= 1024;
+          unit = "KB/s";
+        }
+        else {
+          speed /= 1024 * 1024;
+          unit = "MB/s";
+        }
+
+        info->m_Progress.second = QString::fromLatin1("%1% - %2 %3").arg(info->m_Progress.first).arg(QString::number(speed, 'f', 1)).arg(unit);
+
+        TaskProgressManager::instance().updateProgress(info->m_TaskProgressId, bytesReceived, bytesTotal);
+        emit update(index);
+      }
+    }
+  } catch (const std::bad_alloc&) {
+    reportError(tr("Memory allocation error (in processing progress event)."));
+  }
+}
+
+
+void DownloadManager::downloadReadyRead()
+{
+  try {
+    writeData(findDownload(this->sender()));
+  } catch (const std::bad_alloc&) {
+    reportError(tr("Memory allocation error (in processing downloaded data)."));
+  }
+}
+
+
+void DownloadManager::createMetaFile(DownloadInfo *info)
+{
+	//Avoid triggering refreshes from DirWatcher
+	startDisableDirWatcher();
+
+  QSettings metaFile(QString("%1.meta").arg(info->m_Output.fileName()), QSettings::IniFormat);
+  metaFile.setValue("gameName", info->m_FileInfo->gameName);
+  metaFile.setValue("modID", info->m_FileInfo->modID);
+  metaFile.setValue("fileID", info->m_FileInfo->fileID);
+  metaFile.setValue("url", info->m_Urls.join(";"));
+  metaFile.setValue("name", info->m_FileInfo->name);
+  metaFile.setValue("description", info->m_FileInfo->description);
+  metaFile.setValue("modName", info->m_FileInfo->modName);
+  metaFile.setValue("version", info->m_FileInfo->version.canonicalString());
+  metaFile.setValue("newestVersion", info->m_FileInfo->newestVersion.canonicalString());
+  metaFile.setValue("fileTime", info->m_FileInfo->fileTime);
+  metaFile.setValue("fileCategory", info->m_FileInfo->fileCategory);
+  metaFile.setValue("category", info->m_FileInfo->categoryID);
+  metaFile.setValue("repository", info->m_FileInfo->repository);
+  metaFile.setValue("userData", info->m_FileInfo->userData);
+  metaFile.setValue("installed", info->m_State == DownloadManager::STATE_INSTALLED);
+  metaFile.setValue("uninstalled", info->m_State == DownloadManager::STATE_UNINSTALLED);
+  metaFile.setValue("paused", (info->m_State == DownloadManager::STATE_PAUSED) ||
+                              (info->m_State == DownloadManager::STATE_ERROR));
+  metaFile.setValue("removed", info->m_Hidden);
+
+	endDisableDirWatcher();
+  // slightly hackish...
+  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {
+    if (m_ActiveDownloads[i] == info) {
+      emit update(i);
+    }
+  }
+}
+
+
+void DownloadManager::nxmDescriptionAvailable(QString, int, QVariant userData, QVariant resultData, int requestID)
+{
+  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);
+  if (idIter == m_RequestIDs.end()) {
+    return;
+  } else {
+    m_RequestIDs.erase(idIter);
+  }
+
+  QVariantMap result = resultData.toMap();
+
+  DownloadInfo *info = downloadInfoByID(userData.toInt());
+  if (info == nullptr) return;
+  info->m_FileInfo->categoryID = result["category_id"].toInt();
+  QTextDocument doc;
+  doc.setHtml(result["name"].toString().trimmed());
+  info->m_FileInfo->modName = doc.toPlainText();
+  info->m_FileInfo->newestVersion.parse(result["version"].toString());
+  if (info->m_FileInfo->fileID != 0) {
+    setState(info, STATE_READY);
+  } else {
+    setState(info, STATE_FETCHINGFILEINFO);
+  }
+}
+
+void DownloadManager::nxmFilesAvailable(QString, int, QVariant userData, QVariant resultData, int requestID)
+{
+  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);
+  if (idIter == m_RequestIDs.end()) {
+    return;
+  } else {
+    m_RequestIDs.erase(idIter);
+  }
+
+  DownloadInfo *info = downloadInfoByID(userData.toInt());
+  if (info == nullptr) return;
+
+  QVariantMap result = resultData.toMap();
+  QVariantList files = result["files"].toList();
+
+
+  // MO sometimes prepends <digit>_ to the filename in case of duplicate downloads.
+  // this may muck up the file name comparison
+  QString alternativeLocalName = info->m_FileName;
+
+  QRegExp expression("^\\d_(.*)$");
+  if (expression.indexIn(alternativeLocalName) == 0) {
+    alternativeLocalName = expression.cap(1);
+  }
+
+  bool found = false;
+
+  for (QVariant file : files) {
+    QVariantMap fileInfo = file.toMap();
+    QString fileName = fileInfo["file_name"].toString();
+    QString fileNameVariant = fileName.mid(0).replace(' ', '_');
+    if ((fileName == info->m_FileName) || (fileName == alternativeLocalName) ||
+        (fileNameVariant == info->m_FileName) || (fileNameVariant == alternativeLocalName)) {
+      info->m_FileInfo->name = fileInfo["name"].toString();
+      info->m_FileInfo->version.parse(fileInfo["version"].toString());
+      if (!info->m_FileInfo->version.isValid()) {
+        info->m_FileInfo->version = info->m_FileInfo->newestVersion;
+      }
+      info->m_FileInfo->fileCategory = fileInfo["category_id"].toInt();
+      info->m_FileInfo->fileTime = QDateTime::fromMSecsSinceEpoch(fileInfo["uploaded_timestamp"].toLongLong());
+      info->m_FileInfo->fileID = fileInfo["file_id"].toInt();
+      info->m_FileInfo->fileName = fileInfo["file_name"].toString();
+      info->m_FileInfo->description = BBCode::convertToHTML(fileInfo["changelog_html"].toString());
+      found = true;
+      break;
+    }
+  }
+
+  if (info->m_ReQueried) {
+    if (found) {
+      emit showMessage(tr("Information updated"));
+    } else if (result.count() == 0) {
+      emit showMessage(tr("No matching file found on Nexus! Maybe this file is no longer available or it was renamed?"));
+    } else {
+      SelectionDialog selection(tr("No file on Nexus matches the selected file by name. Please manually choose the correct one."));
+      for (QVariant file : result) {
+        QVariantMap fileInfo = file.toMap();
+        selection.addChoice(fileInfo["file_name"].toString(), "", file);
+      }
+      if (selection.exec() == QDialog::Accepted) {
+        QVariantMap fileInfo = selection.getChoiceData().toMap();
+        info->m_FileInfo->name = fileInfo["name"].toString();
+        info->m_FileInfo->version.parse(fileInfo["version"].toString());
+        info->m_FileInfo->fileCategory = fileInfo["category_id"].toInt();
+        info->m_FileInfo->fileID = fileInfo["file_id"].toInt();
+      } else {
+        emit showMessage(tr("No matching file found on Nexus! Maybe this file is no longer available or it was renamed?"));
+      }
+    }
+  } else {
+    if (info->m_FileInfo->fileID == 0) {
+      qWarning("could not determine file id for %s (state %d)",
+               qUtf8Printable(info->m_FileName), info->m_State);
+    }
+  }
+
+  setState(info, STATE_READY);
+}
+
+
+void DownloadManager::nxmFileInfoAvailable(QString gameName, int modID, int fileID, QVariant userData, QVariant resultData, int requestID)
+{
+  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);
+  if (idIter == m_RequestIDs.end()) {
+    return;
+  } else {
+    m_RequestIDs.erase(idIter);
+  }
+
+  ModRepositoryFileInfo *info = new ModRepositoryFileInfo();
+
+  QVariantMap result = resultData.toMap();
+  info->name = result["name"].toString();
+  info->version.parse(result["version"].toString());
+  if (!info->version.isValid()) {
+    info->version = info->newestVersion;
+  }
+  info->fileName = result["file_name"].toString();
+  info->fileCategory = result["category_id"].toInt();
+  info->fileTime = QDateTime::fromMSecsSinceEpoch(result["uploaded_timestamp"].toLongLong());
+  info->description = BBCode::convertToHTML(result["changelog_html"].toString());
+
+  info->repository = "Nexus";
+  info->gameName = gameName;
+  info->modID = modID;
+  info->fileID = fileID;
+
+  QObject *test = info;
+  m_RequestIDs.insert(m_NexusInterface->requestDownloadURL(gameName, modID, fileID, this, qVariantFromValue(test), QString()));
+}
+
+static int evaluateFileInfoMap(const QVariantMap &map, const std::map<QString, int> &preferredServers)
+{
+  int result = 0;
+
+  auto preference = preferredServers.find(map["name"].toString());
+
+  if (preference != preferredServers.end()) {
+    result += 100 + preference->second * 20;
+  }
+
+  return result;
+}
+
+// sort function to sort by best download server
+bool DownloadManager::ServerByPreference(const std::map<QString, int> &preferredServers, const QVariant &LHS, const QVariant &RHS)
+{
+  return evaluateFileInfoMap(LHS.toMap(), preferredServers) > evaluateFileInfoMap(RHS.toMap(), preferredServers);
+}
+
+int DownloadManager::startDownloadURLs(const QStringList &urls)
+{
+  ModRepositoryFileInfo info;
+  addDownload(urls, "", -1, -1, &info);
+  return m_ActiveDownloads.size() - 1;
+}
+
+int DownloadManager::startDownloadNexusFile(int modID, int fileID)
+{
+  int newID = m_ActiveDownloads.size();
+  addNXMDownload(QString("nxm://%1/mods/%2/files/%3").arg(m_ManagedGame->gameShortName()).arg(modID).arg(fileID));
+  return newID;
+}
+
+QString DownloadManager::downloadPath(int id)
+{
+  return getFilePath(id);
+}
+
+int DownloadManager::indexByName(const QString &fileName) const
+{
+  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {
+    if (m_ActiveDownloads[i]->m_FileName == fileName) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+void DownloadManager::nxmDownloadURLsAvailable(QString gameName, int modID, int fileID, QVariant userData, QVariant resultData, int requestID)
+{
+  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);
+  if (idIter == m_RequestIDs.end()) {
+    return;
+  } else {
+    m_RequestIDs.erase(idIter);
+  }
+
+  ModRepositoryFileInfo *info = qobject_cast<ModRepositoryFileInfo*>(qvariant_cast<QObject*>(userData));
+  QVariantList resultList = resultData.toList();
+  if (resultList.length() == 0) {
+    removePending(gameName, modID, fileID);
+    emit showMessage(tr("No download server available. Please try again later."));
+    return;
+  }
+
+  std::sort(resultList.begin(), resultList.end(), boost::bind(&DownloadManager::ServerByPreference, m_PreferredServers, _1, _2));
+
+  info->userData["downloadMap"] = resultList;
+
+  QStringList URLs;
+
+  foreach (const QVariant &server, resultList) {
+    URLs.append(server.toMap()["URI"].toString());
+  }
+  addDownload(URLs, gameName, modID, fileID, info);
+}
+
+
+void DownloadManager::nxmRequestFailed(QString gameName, int modID, int fileID, QVariant userData, int requestID, QNetworkReply::NetworkError error, const QString &errorString)
+{
+  std::set<int>::iterator idIter = m_RequestIDs.find(requestID);
+  if (idIter == m_RequestIDs.end()) {
+    return;
+  } else {
+    m_RequestIDs.erase(idIter);
+  }
+
+  int index = 0;
+
+  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin(); iter != m_ActiveDownloads.end(); ++iter, ++index) {
+    DownloadInfo *info = *iter;
+    if (info->m_FileInfo->modID == modID) {
+      if (info->m_State < STATE_FETCHINGMODINFO) {
+        m_ActiveDownloads.erase(iter);
+        delete info;
+      } else {
+        setState(info, STATE_READY);
+      }
+      emit update(index);
+      break;
+    }
+  }
+
+  removePending(gameName, modID, fileID);
+  emit showMessage(tr("Failed to request file info from nexus: %1").arg(errorString));
+}
+
+
+void DownloadManager::downloadFinished(int index)
+{
+  DownloadInfo *info;
+  if (index)
+    info = m_ActiveDownloads[index];
+  else
+    info = findDownload(this->sender(), &index);
+
+  if (info != nullptr) {
+    QNetworkReply *reply = info->m_Reply;
+    QByteArray data;
+    if (reply->isOpen() && info->m_HasData) {
+      data = reply->readAll();
+      info->m_Output.write(data);
+    }
+    info->m_Output.close();
+    TaskProgressManager::instance().forgetMe(info->m_TaskProgressId);
+
+    bool error = false;
+    if ((info->m_State != STATE_CANCELING) &&
+        (info->m_State != STATE_PAUSING)) {
+      bool textData = reply->header(QNetworkRequest::ContentTypeHeader).toString().startsWith("text", Qt::CaseInsensitive);
+      if (textData)
+        emit showMessage(tr("Warning: Content type is: %1").arg(reply->header(QNetworkRequest::ContentTypeHeader).toString()));
+      if ((info->m_Output.size() == 0) ||
+          ((reply->error() != QNetworkReply::NoError)
+            && (reply->error() != QNetworkReply::OperationCanceledError))) {
+        if (reply->error() == QNetworkReply::UnknownContentError)
+          emit showMessage(tr("Download header content length: %1 downloaded file size: %2").arg(reply->header(QNetworkRequest::ContentLengthHeader).toLongLong()).arg(info->m_Output.size()));
+        if (info->m_Tries == 0) {
+          emit showMessage(tr("Download failed: %1 (%2)").arg(reply->errorString()).arg(reply->error()));
+        }
+        error = true;
+        setState(info, STATE_ERROR);
+      }
+    }
+
+    if (info->m_State == STATE_CANCELING) {
+      setState(info, STATE_CANCELED);
+    } else if (info->m_State == STATE_PAUSING) {
+      if (info->m_Output.isOpen() && info->m_HasData) {
+        info->m_Output.write(info->m_Reply->readAll());
+      }
+      setState(info, STATE_PAUSED);
+    }
+
+    if (info->m_State == STATE_CANCELED || (info->m_Tries == 0 && error)) {
+      emit aboutToUpdate();
+      info->m_Output.remove();
+      delete info;
+      m_ActiveDownloads.erase(m_ActiveDownloads.begin() + index);
+      if (error)
+        emit showMessage(tr("We were unable to download the file due to errors after four retries. There may be an issue with the Nexus servers."));
+      emit update(-1);
+    } else if (info->isPausedState() || info->m_State == STATE_PAUSING) {
+      info->m_Output.close();
+      createMetaFile(info);
+      emit update(index);
+    } else {
+      QString url = info->m_Urls[info->m_CurrentUrl];
+      if (info->m_FileInfo->userData.contains("downloadMap")) {
+        foreach (const QVariant &server, info->m_FileInfo->userData["downloadMap"].toList()) {
+          QVariantMap serverMap = server.toMap();
+          if (serverMap["URI"].toString() == url) {
+            int deltaTime = info->m_StartTime.secsTo(QTime::currentTime());
+            if (deltaTime > 5) {
+              emit downloadSpeed(serverMap["Name"].toString(), (info->m_TotalSize - info->m_PreResumeSize) / deltaTime);
+            } // no division by zero please! Also, if the download is shorter than a few seconds, the result is way to inprecise
+            break;
+          }
+        }
+      }
+
+      bool isNexus = info->m_FileInfo->repository == "Nexus";
+      // need to change state before changing the file name, otherwise .unfinished is appended
+      if (isNexus) {
+        setState(info, STATE_FETCHINGMODINFO);
+      } else {
+        setState(info, STATE_NOFETCH);
+      }
+
+      QString newName = getFileNameFromNetworkReply(reply);
+      QString oldName = QFileInfo(info->m_Output).fileName();
+
+			startDisableDirWatcher();
+      if (!newName.isEmpty() && (oldName.isEmpty())) {
+        info->setName(getDownloadFileName(newName), true);
+      } else {
+        info->setName(m_OutputDirectory + "/" + info->m_FileName, true); // don't rename but remove the ".unfinished" extension
+      }
+			endDisableDirWatcher();
+
+      if (!isNexus) {
+        setState(info, STATE_READY);
+      }
+
+      emit update(index);
+    }
+    reply->close();
+    reply->deleteLater();
+
+    if ((info->m_Tries > 0) && error) {
+      --info->m_Tries;
+      resumeDownloadInt(index);
+    }
+  } else {
+    qWarning("no download index %d", index);
+  }
+}
+
+
+void DownloadManager::downloadError(QNetworkReply::NetworkError error)
+{
+  if (error != QNetworkReply::OperationCanceledError) {
+    QNetworkReply *reply = qobject_cast<QNetworkReply*>(sender());
+    qWarning("%s (%d)", reply != nullptr ? qUtf8Printable(reply->errorString())
+                                         : "Download error occured",
+             error);
+  }
+}
+
+
+void DownloadManager::metaDataChanged()
+{
+  int index = 0;
+
+  DownloadInfo *info = findDownload(this->sender(), &index);
+  if (info != nullptr) {
+    QString newName = getFileNameFromNetworkReply(info->m_Reply);
+    if (!newName.isEmpty() && (info->m_FileName.isEmpty())) {
+			startDisableDirWatcher();
+      info->setName(getDownloadFileName(newName), true);
+			endDisableDirWatcher();
+      refreshAlphabeticalTranslation();
+      if (!info->m_Output.isOpen() && !info->m_Output.open(QIODevice::WriteOnly | QIODevice::Append)) {
+        reportError(tr("failed to re-open %1").arg(info->m_FileName));
+        setState(info, STATE_CANCELING);
+      }
+    }
+  } else {
+    qWarning("meta data event for unknown download");
+  }
+}
+
+void DownloadManager::directoryChanged(const QString&)
+{
+	if(DownloadManager::m_DirWatcherDisabler==0)
+		refreshList();
+}
+
+void DownloadManager::managedGameChanged(MOBase::IPluginGame const *managedGame)
+{
+  m_ManagedGame = managedGame;
+}
+
+void DownloadManager::checkDownloadTimeout()
+{
+  for (int i = 0; i < m_ActiveDownloads.size(); ++i) {
+    if (m_ActiveDownloads[i]->m_StartTime.elapsed() - std::get<3>(m_ActiveDownloads[i]->m_SpeedDiff) > 5 * 1000 &&
+        m_ActiveDownloads[i]->m_State == STATE_DOWNLOADING && m_ActiveDownloads[i]->m_Reply != nullptr &&
+        m_ActiveDownloads[i]->m_Reply->isOpen()) {
+      pauseDownload(i);
+      downloadFinished(i);
+      resumeDownload(i);
+    }
+  }
+}
+
+void DownloadManager::writeData(DownloadInfo *info)
+{
+  if (info != nullptr) {
+    qint64 ret = info->m_Output.write(info->m_Reply->readAll());
+    if (ret < info->m_Reply->size()) {
+      QString fileName = info->m_FileName; // m_FileName may be destroyed after setState
+      setState(info, DownloadState::STATE_CANCELED);
+      qCritical(QString("Unable to write download \"%2\" to drive (return %1)").arg(ret).arg(info->m_FileName).toLocal8Bit());
+      reportError(tr("Unable to write download to drive (return %1).\n"
+                     "Check the drive's available storage.\n\n"
+                     "Canceling download \"%2\"...").arg(ret).arg(fileName));
+    }
+  }
+}