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creator.cpp
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////////////////////////////////////////////////////////////////////////////////
// This file is part of LibreELEC - http://www.libreelec.tv
// Copyright (C) 2013-2015 RasPlex project
// Copyright (C) 2016 Team LibreELEC
//
// LibreELEC 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 2 of the License, or
// (at your option) any later version.
//
// LibreELEC 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 LibreELEC. If not, see <http://www.gnu.org/licenses/>.
////////////////////////////////////////////////////////////////////////////////
#include "creator.h"
#include "ui_creator.h"
#include "version.h"
#include <QDebug>
#include <QString>
#include <QFile>
#include <QFileDialog>
#include <iostream>
#include <QUrl>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QMessageBox>
#include <QThread>
#include <QTimer>
#include <QPlainTextEdit>
#include <QLinkedList>
#include <QStyleFactory>
#include <QDesktopServices>
#include <QMimeData>
#include <QProcess>
#include <QVersionNumber>
#if defined(Q_OS_WIN)
#include "diskwriter_windows.h"
#include "deviceenumerator_windows.h"
#elif defined(Q_OS_UNIX)
#include <unistd.h>
#include "diskwriter_unix.h"
#include "deviceenumerator_unix.h"
#endif
const QString Creator::releasesUrl = "http://releases.libreelec.tv/";
const QString Creator::versionUrl = releasesUrl + "creator_version";
const QString Creator::helpUrl = "https://wiki.libreelec.tv/index.php?title=LibreELEC_USB-SD_Creator";
const int Creator::timerValue = 1500; // msec
Creator::Creator(Privileges &privilegesArg, QWidget *parent) :
QDialog(parent),
ui(new Ui::Creator),
manager(new DownloadManager(this)),
state(STATE_IDLE),
imageHash(QCryptographicHash::Sha256),
settings(QSettings::IniFormat, QSettings::UserScope, "LibreELEC", "LibreELEC.USB-SD.Creator"),
privileges(privilegesArg),
deviceEjected("")
{
timerId = 0;
restoreGeometry(settings.value("window/geometry").toByteArray());
ui->setupUi(this);
installEventFilter(this);
#if defined(Q_OS_WIN)
diskWriter = new DiskWriter_windows();
devEnumerator = new DeviceEnumerator_windows();
#elif defined(Q_OS_UNIX)
diskWriter = new DiskWriter_unix();
devEnumerator = new DeviceEnumerator_unix();
#endif
diskWriterThread = new QThread(this);
diskWriter->moveToThread(diskWriterThread);
// must set before signals
if (settings.value("preferred/imageshowall") == Qt::Checked)
ui->imagesShowAll->setChecked(true); // default unchecked
// hide ? button
this->setWindowFlags(this->windowFlags() & ~(Qt::WindowContextHelpButtonHint));
// add minimize button on Windows
this->setWindowFlags(windowFlags() | Qt::WindowMinimizeButtonHint);
connect(diskWriterThread, SIGNAL(finished()),
diskWriter, SLOT(deleteLater()));
connect(this, SIGNAL(proceedToWriteImageToDevice(QString,QString)),
diskWriter, SLOT(writeImageToRemovableDevice(QString,QString)));
connect(diskWriter, SIGNAL(bytesWritten(int)),this, SLOT(handleWriteProgress(int)));
connect(diskWriter, SIGNAL(syncing()), this, SLOT(writingSyncing()));
connect(diskWriter, SIGNAL(finished()), this, SLOT(writingFinished()));
connect(diskWriter, SIGNAL(error(QString)), this, SLOT(writingError(QString)));
diskWriterThread->start();
connect(ui->refreshRemovablesButton,SIGNAL(clicked()),
this,SLOT(refreshRemovablesList()));
connect(manager, SIGNAL(downloadProgress(qint64, qint64)),
this, SLOT(handleDownloadProgress(qint64, qint64)));
connect(manager, SIGNAL(downloadComplete(QByteArray)),
this, SLOT(handleFinishedDownload(QByteArray)));
connect(manager, SIGNAL(partialData(QByteArray,qlonglong)),
this, SLOT(handlePartialData(QByteArray,qlonglong)));
connect(manager, SIGNAL(downloadError(QString)),
this, SLOT(handleDownloadError(QString)));
connect(ui->downloadButton, SIGNAL(clicked()),
this, SLOT(downloadButtonClicked()));
connect(ui->loadButton, SIGNAL(clicked()),
this, SLOT(getImageFileNameFromUser()));
connect(ui->writeFlashButton, SIGNAL(clicked()),
this, SLOT(writeFlashButtonClicked()));
connect(ui->imagesShowAll, SIGNAL(stateChanged(int)),
this, SLOT(projectImagesShowAllChanged(int)));
connect(ui->projectSelectBox, SIGNAL(currentIndexChanged(int)),
this, SLOT(setProjectImages()));
connect(ui->imageSelectBox, SIGNAL(currentIndexChanged(QString)),
this, SLOT(projectImagesChanged(QString)));
connect(ui->removableDevicesComboBox, SIGNAL(currentIndexChanged(int)),
this, SLOT(savePreferredRemovableDevice(int)));
connect(ui->ejectUSB, SIGNAL(clicked()), this, SLOT(ejectUSB()));
connect(ui->loadUSB, SIGNAL(clicked()), this, SLOT(loadUSB()));
connect(ui->removeUSB, SIGNAL(clicked()), this, SLOT(removeUSB()));
connect(ui->helpButton, SIGNAL(clicked()), this, SLOT(showHelp()));
connect(ui->showAboutButton, SIGNAL(clicked()), this, SLOT(showAbout()));
connect(ui->closeAboutButton, SIGNAL(clicked()), this, SLOT(closeAbout()));
connect(ui->closeAppButton, SIGNAL(clicked()), this, SLOT(close()));
refreshRemovablesList();
// create a timer that refreshes the device list every 1.5 second
// if there is any change then list is changed and current device removed
timerId = 0;
timerId = startTimer(timerValue);
// set Fusion style
QApplication::setStyle(QStyleFactory::create("Fusion"));
// and apply some changes to styles
#ifndef Q_OS_MAC
QFile fileStyle(":/qss/stylesheet.qss");
if (fileStyle.open(QIODevice::ReadOnly | QIODevice::Text)) {
this->setStyleSheet(QLatin1String(fileStyle.readAll()));
this->ensurePolished();
fileStyle.close();
}
#else
QFile fileStyleOsx(":/qss/stylesheet_osx.qss");
if (fileStyleOsx.open(QIODevice::ReadOnly | QIODevice::Text)) {
this->setStyleSheet(QLatin1String(fileStyleOsx.readAll()));
this->ensurePolished();
fileStyleOsx.close();
}
QFont aboutFont;
aboutFont.setPointSize(13);
ui->labelAbout->setFont(aboutFont);
// make button little bigger (workaround for higher QComboBox)
// and move it left for same change
QRect currRectRrb = ui->refreshRemovablesButton->geometry();
ui->refreshRemovablesButton->setGeometry(currRectRrb.x()-2, currRectRrb.y(), currRectRrb.height()+2, currRectRrb.width()+2);
#endif
setImageFileName("");
ui->writeFlashButton->setEnabled(false);
ui->projectSelectBox->setToolTip(tr("Select project"));
ui->imageSelectBox->setToolTip(tr("Select image"));
showLoadEject = false; // disabled by default
#ifdef Q_OS_WIN
// this option is only for me on Windows
// disabled on Linux and OS X
showLoadEject = settings.value("preferred/showloadeject", false).toBool();
settings.setValue("preferred/showloadeject", showLoadEject);
if (showLoadEject == false)
#endif
{
ui->labelEjectLoad->setVisible(false);
ui->ejectUSB->setEnabled(false);
ui->ejectUSB->setVisible(false);
ui->loadUSB->setEnabled(false);
ui->loadUSB->setVisible(false);
ui->removeUSB->setEnabled(false);
ui->removeUSB->setVisible(false);
}
setAcceptDrops(true); // allow droping files on a window
showRootMessageBox();
// call web browser through our wrapper for Linux
QDesktopServices::setUrlHandler("http", this, "httpsUrlHandler");
QDesktopServices::setUrlHandler("https", this, "httpsUrlHandler");
translator = new Translator(this, &settings); // pass parent
translator->fillLanguages(ui->langBox);
// set app version
ui->labelVersion->setText(tr("Version: %1\nBuild date: %2").arg(BUILD_VERSION).arg(BUILD_DATE));
downloadVersionCheck();
}
bool Creator::showRootMessageBox()
{
#ifdef Q_OS_WIN
return false; // always run with administrative privileges
#else
if (getuid() == 0) // root == 0, real user != 0
return false;
QMessageBox msgBox;
msgBox.setText(tr("Root privileges required to write image.\nRun application with sudo."));
msgBox.setIcon(QMessageBox::Critical);
msgBox.exec();
return true;
#endif
}
Creator::~Creator()
{
if (imageFile.isOpen() && state == STATE_DOWNLOADING_IMAGE) {
qDebug() << "Removing file" << imageFile.fileName();
imageFile.remove();
} else if (state == STATE_WRITING_IMAGE) {
privileges.SetUser(); // back to user
}
delete ui;
diskWriter->cancelWrite();
diskWriterThread->quit();
diskWriterThread->wait();
delete diskWriterThread;
delete devEnumerator;
}
void Creator::httpsUrlHandler(const QUrl &url)
{
// on windows open web browser directly
// for linux use a wrapper to set uid/gid correctly
#if defined(Q_OS_WIN) || defined(Q_OS_MAC)
QDesktopServices::openUrl(url);
#else
qDebug() << "httpsUrlHandler called" << url;
pid_t pid = fork();
if (pid == 0) {
// child process, set both real and effective uid/gid
// because GTK+ applications check this and doesn't run
setenv("DBUS_SESSION_BUS_ADDRESS", privileges.GetUserEnvDbusSession().toLatin1().data(), 1);
setenv("LOGNAME", privileges.GetUserEnvLogname().toLatin1().data(), 1);
privileges.SetRoot(); // no need to switch back
privileges.SetRealUser(); // no need to switch back
QDesktopServices::openUrl(QUrl(url));
_exit(0);
}
#if 0
QString program = QCoreApplication::applicationFilePath();
QStringList arguments = QStringList("--browser");
// root is needed to start the process which
// will be dropped back to user (both real and effective uid/gid)
privileges.SetRoot();
setenv("DBUS_SESSION_BUS_ADDRESS", privileges.GetUserEnvDbusSession().toLatin1().data(), 1);
setenv("LOGNAME", privileges.GetUserEnvLogname().toLatin1().data(), 1);
setenv("LE_URL_ADDRESS", url.toString().toLatin1().data(), 1);
QProcess myProcess;
myProcess.startDetached(program, arguments);
myProcess.waitForStarted();
myProcess.waitForFinished();
privileges.SetUser(); // back to user
#endif
qDebug() << "httpsUrlHandler done";
#endif
}
void Creator::setArgFile(QString file)
{
if (file.isEmpty())
return;
QFileInfo checkFile(file);
if (!checkFile.exists() || !checkFile.isFile())
return;
QFileInfo infoFile(file);
file = infoFile.absoluteFilePath();
setImageFileName(file);
}
void Creator::keyPressEvent(QKeyEvent *event)
{
if (event->key() == Qt::Key_Escape)
return; // ignore Esc key for close
}
void Creator::closeEvent(QCloseEvent* event)
{
Q_UNUSED(event);
settings.setValue("window/geometry", saveGeometry());
}
void Creator::dragEnterEvent(QDragEnterEvent *event)
{
if (event->mimeData()->hasUrls())
event->acceptProposedAction();
}
void Creator::dropEvent(QDropEvent *event)
{
foreach (const QUrl &url, event->mimeData()->urls()) {
QString file = url.toLocalFile();
QFileInfo infoFile(file);
file = infoFile.absoluteFilePath();
setImageFileName(file);
reset();
// hide selected project and image name
ui->projectSelectBox->blockSignals(true);
ui->imageSelectBox->blockSignals(true);
ui->projectSelectBox->setCurrentIndex(-1);
ui->imageSelectBox->setCurrentIndex(-1);
ui->projectSelectBox->blockSignals(false);
ui->imageSelectBox->blockSignals(false);
// and disable download button
ui->downloadButton->setEnabled(false);
break; // only first file
}
}
void Creator::timerEvent(QTimerEvent *event)
{
Q_UNUSED(event);
refreshRemovablesList();
}
void Creator::changeEvent(QEvent *e) {
switch (e->type()) {
case QEvent::ActivationChange:
if (this->isActiveWindow()) {
// got focus
if (timerId == 0)
timerId = startTimer(timerValue);
} else {
// lost focus
if (timerId > 0) {
killTimer(timerId);
timerId = 0;
}
}
break;
case QEvent::LanguageChange:
ui->retranslateUi(this);
// retranslate dynamic text
ui->labelVersion->setText(tr("Version: %1\nBuild date: %2").arg(BUILD_VERSION).arg(BUILD_DATE));
break;
default:
break;
}
}
void Creator::ejectUSB()
{
int idx = ui->removableDevicesComboBox->currentIndex();
deviceEjected = ui->removableDevicesComboBox->itemData(idx).toString();
if (deviceEjected.isNull())
return;
qDebug() << "ejectUSB" << deviceEjected;
int rv = devEnumerator->loadEjectDrive(deviceEjected, DeviceEnumerator::LOADEJECT_EJECT);
Q_UNUSED(rv);
}
void Creator::loadUSB()
{
if (deviceEjected.isNull())
return;
qDebug() << "loadUSB" << deviceEjected;
int rv = devEnumerator->loadEjectDrive(deviceEjected, DeviceEnumerator::LOADEJECT_LOAD);
deviceEjected = ""; // init
Q_UNUSED(rv);
}
void Creator::removeUSB()
{
int idx = ui->removableDevicesComboBox->currentIndex();
deviceEjected = ui->removableDevicesComboBox->itemData(idx).toString();
if (deviceEjected.isNull())
return;
qDebug() << "removeUSB" << deviceEjected;
int rv = devEnumerator->removeDrive(deviceEjected);
Q_UNUSED(rv);
}
void Creator::showHelp()
{
QDesktopServices::openUrl(QUrl(helpUrl));
}
void Creator::showAbout()
{
ui->stackedWidget->setCurrentIndex(STACK_WIDGET_ABOUT);
}
void Creator::closeAbout()
{
ui->stackedWidget->setCurrentIndex(STACK_WIDGET_MAIN);
}
void Creator::downloadProgressBarText(const QString &text = "")
{
ui->downloadProgressBar->setFormat(" " + text);
ui->downloadProgressBar->repaint();
ui->downloadProgressBar->update();
//qApp->processEvents(); // don't use this (signals lost and boooom)
}
void Creator::flashProgressBarText(const QString &text = "")
{
ui->flashProgressBar->setFormat(" " + text);
ui->flashProgressBar->repaint();
ui->flashProgressBar->update();
//qApp->processEvents();
}
void Creator::parseJsonAndSet(const QByteArray &data)
{
//qDebug() << "JSON data:" << data;
parserData = new JsonParser(data);
// parse local file if exist
QFile fileLocalReleases("releases-user.json");
if (fileLocalReleases.open(QIODevice::ReadOnly | QIODevice::Text)) {
parserData->addExtra(fileLocalReleases.readAll(), "User");
fileLocalReleases.close();
}
ui->projectSelectBox->clear();
QList<JsonData> dataList = parserData->getJsonData();
for (int ix = 0; ix < dataList.size(); ix++) {
QString projectName = dataList.at(ix).name;
QString projectId = dataList.at(ix).id;
QString projectUrl = dataList.at(ix).url;
QVariantMap projectData;
projectData.insert("id", projectId);
projectData.insert("url", projectUrl);
ui->projectSelectBox->insertItem(0, projectName, projectData);
ui->projectSelectBox->setItemData(0, projectId, Qt::ToolTipRole);
}
QString previouslySelectedProject;
previouslySelectedProject = settings.value("preferred/project").toString();
int idx = ui->projectSelectBox->findText(previouslySelectedProject,
Qt::MatchFixedString);
if (idx >= 0)
ui->projectSelectBox->setCurrentIndex(idx);
settings.setValue("preferred/project", ui->projectSelectBox->currentText());
setProjectImages();
resetProgressBars(); // it is affected with all downloads
}
void Creator::setProjectImages()
{
downloadProgressBarText();
//ui->fileNameLabel->setText("");
// last selected is preferred
settings.setValue("preferred/project", ui->projectSelectBox->currentText());
QString previouslySelectedImage;
if (ui->imageSelectBox->count() == 0)
previouslySelectedImage = settings.value("preferred/image").toString();
else
previouslySelectedImage = ui->imageSelectBox->currentText();
ui->imageSelectBox->clear();
QList<JsonData> dataList = parserData->getJsonData();
for (int ix = 0; ix < dataList.size(); ix++) {
QString projectName = dataList.at(ix).name;
// show images only for selected project
if (projectName != ui->projectSelectBox->currentText())
continue;
QList<QVariantMap> releases = dataList.at(ix).images;
for (QList<QVariantMap>::const_iterator it = releases.constBegin();
it != releases.constEnd();
it++)
{
QString imageName = (*it)["name"].toString();
QString imageChecksum = (*it)["sha256"].toString();
QString imageSize = (*it)["size"].toString();
int size = imageSize.toInt();
if (size < 1024) {
imageSize = QString::number(size) + " B";
} else if (size < 1024*1024) {
size /= 1024;
imageSize = QString::number(size) + " kB";
} else {
size /= 1024*1024;
imageSize = QString::number(size) + " MB";
}
// LibreELEC-RPi2.arm-7.90.002.img.gz
QRegExp regExp = QRegExp(".+-[0-9]+\\.(9[05])\\.[0-9]+.*\\.img\\.gz");
regExp.indexIn(imageName);
QStringList regExpVal = regExp.capturedTexts();
QString alphaBetaNumber;
alphaBetaNumber = tr("[Stable]");
if (regExpVal.count() == 2) {
if (regExpVal.at(1) == "90")
alphaBetaNumber = tr("[Alpha]");
else if (regExpVal.at(1) == "95")
alphaBetaNumber = tr("[Beta]");
}
if (! ui->imagesShowAll->isChecked()) {
// check value (number 90 or 95)
if (alphaBetaNumber != tr("[Stable]"))
continue; // skip testing images
}
checksumMap[imageName] = imageChecksum;
ui->imageSelectBox->insertItem(0, imageName + ", " + imageSize, imageName);
ui->imageSelectBox->setItemData(0, alphaBetaNumber + " " + releasesUrl + imageName, Qt::ToolTipRole);
// if we don't show all images we are already done
// we are adding items in reverse order
// image with highest number already added
if (! ui->imagesShowAll->isChecked())
break;
}
}
int idx = ui->imageSelectBox->findText(previouslySelectedImage,
Qt::MatchFixedString);
if (idx >= 0)
ui->imageSelectBox->setCurrentIndex(idx);
savePreferredImage(ui->imageSelectBox->currentText());
reset();
downloadProgressBarText();
}
void Creator::projectImagesShowAllChanged(int state)
{
settings.setValue("preferred/imageshowall", state);
setProjectImages();
}
void Creator::projectImagesChanged(const QString& version)
{
downloadProgressBarText();
ui->fileNameLabel->setText("");
savePreferredImage(version);
// in case user file was selected then both project and image was empty
// try setting project
QString previouslySelectedProject;
previouslySelectedProject = settings.value("preferred/project").toString();
int idx = ui->projectSelectBox->findText(previouslySelectedProject,
Qt::MatchFixedString);
if (idx >= 0)
ui->projectSelectBox->setCurrentIndex(idx);
}
void Creator::reset(const QString& message)
{
bytesDownloaded = 0;
bytesLast = 0;
if (imageFile.isOpen())
imageFile.close();
ui->imagesShowAll->setEnabled(true);
ui->projectSelectBox->blockSignals(false);
ui->projectSelectBox->setEnabled(true);
ui->imageSelectBox->blockSignals(false);
ui->imageSelectBox->setEnabled(true);
ui->downloadButton->setEnabled(true);
ui->downloadButton->setText(tr("Download"));
ui->refreshRemovablesButton->setEnabled(true);
ui->removableDevicesComboBox->setEnabled(true);
int idx = ui->removableDevicesComboBox->currentIndex();
QString destination = ui->removableDevicesComboBox->itemData(idx).toString();
QString file = ui->fileNameLabel->text();
if (file.isFilled()) {
QFileInfo checkFile(file);
if (!checkFile.exists() || !checkFile.isFile())
file = "";
else {
QFileInfo infoFile(file);
file = infoFile.absoluteFilePath();
ui->fileNameLabel->setText(file);
setImageFileName(file);
}
}
if (destination.isNull() == false && file.isFilled())
ui->writeFlashButton->setEnabled(true);
else
ui->writeFlashButton->setEnabled(false);
ui->writeFlashButton->setText(tr("Write"));
if (message.isNull() == false) {
if (state == STATE_DOWNLOADING_IMAGE) {
;
} else if (state == STATE_WRITING_IMAGE) {
flashProgressBarText(message);
}
}
state = STATE_IDLE;
// TBD - USB eject/load/remove
}
void Creator::resetProgressBars()
{
ui->downloadProgressBar->setValue(0);
ui->flashProgressBar->setValue(0);
downloadProgressBarText();
flashProgressBarText();
}
void Creator::savePreferredImage(const QString& version)
{
settings.setValue("preferred/image", version);
}
void Creator::savePreferredRemovableDevice(int idx)
{
if (idx < 0 )
return;
settings.setValue("preferred/removableDevice", ui->removableDevicesComboBox->itemData(idx).toString());
flashProgressBarText("");
}
void Creator::disableControls(const int which)
{
ui->imagesShowAll->setEnabled(false);
ui->projectSelectBox->setEnabled(false);
ui->projectSelectBox->blockSignals(true);
ui->imageSelectBox->setEnabled(false);
ui->imageSelectBox->blockSignals(true);
ui->refreshRemovablesButton->setEnabled(false);
ui->removableDevicesComboBox->setEnabled(false);
if (which == DISABLE_CONTROL_DOWNLOAD)
ui->writeFlashButton->setEnabled(false);
else
ui->downloadButton->setEnabled(false);
// TBD - USB eject/load/remove
}
bool Creator::isChecksumValid(const QString checksumSha256)
{
checksum = checksumMap[selectedImage];
if (checksumSha256.isFilled() && checksumSha256 == checksum)
return true; // checksum calculated at download stage
QByteArray referenceSum, downloadSum;
QCryptographicHash c(QCryptographicHash::Sha256);
// calculate the sha256 sum of the downloaded file
imageFile.open(QFile::ReadOnly);
while (!imageFile.atEnd())
c.addData(imageFile.read(4096));
downloadSum = c.result().toHex();
imageFile.close();
qDebug() << selectedImage << checksum;
if (checksum.isEmpty() || downloadSum != checksum.toUtf8())
return false;
return true;
}
// From http://www.gamedev.net/topic/591402-gzip-uncompressed-file-size/
// Might not be portable!
unsigned int Creator::getUncompressedImageSize()
{
FILE *file;
unsigned int len;
unsigned char bufSize[4];
unsigned int fileSize;
file = fopen(imageFile.fileName().toStdString().c_str(), "rb");
if (file == NULL)
return 0;
if (imageFile.fileName().endsWith(".gz")) {
if (fseek(file, -4, SEEK_END) != 0)
return 0;
len = fread(&bufSize[0], sizeof(unsigned char), 4, file);
if (len != 4) {
fclose(file);
return 0;
}
fileSize = (unsigned int) ((bufSize[3] << 24) | (bufSize[2] << 16) | (bufSize[1] << 8) | bufSize[0]);
qDebug() << "Uncompressed gz file size:" << fileSize;
} else if (imageFile.fileName().endsWith(".zip")) {
// first check uncompressed size from header
if (fseek(file, 22, SEEK_SET) != 0)
return 0;
len = fread(&bufSize[0], sizeof(unsigned char), 4, file);
if (len != 4) {
fclose(file);
return 0;
}
fileSize = (unsigned int) ((bufSize[3] << 24) | (bufSize[2] << 16) | (bufSize[1] << 8) | bufSize[0]);
// check general-purpose flags
if (fseek(file, 6, SEEK_SET) != 0)
return 0;
len = fread(&bufSize[0], sizeof(unsigned char), 2, file);
if (len != 2) {
fclose(file);
return 0;
}
qDebug() << "fileSize" << fileSize << "general-purpose flag" << (bufSize[0] & 0x08);
if (fileSize == 0 && (bufSize[0] & 0x08) != 0) {
// get size from structure immediately after the
// compressed data (at the end of the file)
// get End of central directory record (EOCD)
long off;
for (off = 0;; off++) {
qDebug() << "off:" << off;
if (fseek(file, -22 - off, SEEK_END) == -1)
break; // error
len = fread(&bufSize[0], sizeof(unsigned char), 4, file);
if (len != 4) {
fclose(file);
return 0;
}
// check End of central directory signature = 0x06054b50
if (bufSize[3] == 0x06 && bufSize[2] == 0x05 && \
bufSize[1] == 0x4b && bufSize[0] == 0x50)
{
qDebug() << "found End of central directory signature = 0x06054b50";
break; // exit loop
}
} // for
off = 16 - 4; // 4 B already read
// Offset of start of central directory, relative to start of archive
if (fseek(file, off, SEEK_CUR) == -1) {
fclose(file);
return 0;
}
len = fread(&bufSize[0], sizeof(unsigned char), 4, file);
if (len != 4) {
fclose(file);
return 0;
}
// calculate offset
off = (long) ((bufSize[3] << 24) | (bufSize[2] << 16) | (bufSize[1] << 8) | bufSize[0]);
if (fseek(file, off, SEEK_SET) == -1) {
fclose(file);
return 0;
}
len = fread(&bufSize[0], sizeof(unsigned char), 4, file);
if (len != 4) {
fclose(file);
return 0;
}
// check Central directory file header signature = 0x02014b50
if (bufSize[3] == 0x02 && bufSize[2] == 0x01 && bufSize[1] == 0x4b && bufSize[0] == 0x50) {
qDebug() << "found Central directory file header signature = 0x02014b50";
off = 24 - 4; // 4 B already read
}
if (fseek(file, off, SEEK_CUR) == -1) {
fclose(file);
return 0;
}
len = fread(&bufSize[0], sizeof(unsigned char), 4, file);
if (len != 4) {
fclose(file);
return 0;
}
// Uncompressed size
fileSize = (unsigned int) ((bufSize[3] << 24) | (bufSize[2] << 16) | (bufSize[1] << 8) | bufSize[0]);
if (fileSize == 0) {
qDebug() << "fileSize unknown - set 512 MB";
fileSize = 512 * 1024 * 1024; // test
}
} // fileSize == 0
qDebug() << "Uncompressed zip file size:" << fileSize;
} else {
fseek(file, 0L, SEEK_END);
fileSize = ftell(file);
qDebug() << "Regular file size:" << fileSize;
}
fclose(file);
return fileSize;
}
void Creator::setImageFileName(QString filename)
{
if (imageFile.isOpen()) {
qDebug() << "Tried to change filename while imageFile was open!";
return;
}
imageFile.setFileName(filename);
if (filename.endsWith(".temp"))
filename = filename.left(filename.lastIndexOf("."));
ui->fileNameLabel->setText(filename);
}
QString Creator::getDefaultSaveDir()
{
static QString defaultDir;
if (defaultDir.isEmpty()) {
defaultDir = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation);
if (defaultDir.isEmpty())
defaultDir = QDir::homePath();
}
return defaultDir;
}
void Creator::handleDownloadError(const QString message)
{
qDebug() << "Something went wrong with download:" << message;
downloadProgressBarText(message);
if (state == STATE_GET_VERSION)
downloadReleases();
}
void Creator::handleFinishedDownload(const QByteArray &data)
{
switch (state) {
case STATE_GET_VERSION:
state = STATE_IDLE;
checkNewVersion(data);
downloadReleases();
break;
case STATE_GET_RELEASES:
parseJsonAndSet(data);
ui->downloadButton->setEnabled(true);
state = STATE_IDLE;
break;
case STATE_DOWNLOADING_IMAGE:
// whole data at once (no partial)
if (bytesDownloaded == 0) {
downloadProgressBarText(tr("Download complete, syncing file..."));
qApp->processEvents(); // fix this
handlePartialData(data, data.size());
}
resetProgressBars();
imageFile.close();
downloadProgressBarText(tr("Download complete, verifying checksum..."));
if (isChecksumValid(imageHash.result().toHex()))
downloadProgressBarText(tr("Download complete, checksum ok."));
else
downloadProgressBarText(tr("Download complete, checksum not ok."));
// rename file
if (imageFile.fileName().endsWith(".temp")) {
QString newFileName = imageFile.fileName().left(imageFile.fileName().lastIndexOf("."));
bool success = imageFile.rename(newFileName);
if (success)
qDebug() << "rename ok";
else
qDebug() << "rename error";
}
delete averageSpeed;
reset();
state = STATE_IDLE;
break;
default:
qDebug() << "handleFinishedDownload default";
break;
}
}
void Creator::handlePartialData(const QByteArray &data, qlonglong total)
{
Q_UNUSED(total);
if (state != STATE_DOWNLOADING_IMAGE) {
// what to do in this case?
qDebug() << "handlePartialData: got unexpected data!";
return;
}
imageFile.write(data);
imageHash.addData(data);
bytesDownloaded += data.size();
}
void Creator::handleDownloadProgress(qint64 bytesReceived, qint64 bytesTotal)
{
if (state != STATE_DOWNLOADING_IMAGE)
return;
if (bytesTotal < 10000)
return; // skip json file (to be fixed)
// Update progress bar
ui->downloadProgressBar->setMaximum(bytesTotal);
ui->downloadProgressBar->setValue(bytesReceived);
// calculate current download speed
double speed;
int elapsedTime = speedTime.elapsed();
if (elapsedTime <= 0)
elapsedTime = 1; // don't delete by zero
speed = (bytesReceived - bytesLast) * 1000.0 / elapsedTime;
averageSpeed->AddValue(speed);
speed = averageSpeed->AverageValue();
double remainingTime = (bytesTotal - bytesReceived) / speed; // in seconds
bytesLast = bytesReceived;
QString unit;
if (speed < 1024) {
unit = "bytes/sec";