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imagewriter.cpp
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/*
* SPDX-License-Identifier: Apache-2.0
* Copyright (C) 2020 Raspberry Pi (Trading) Limited
*/
#include "imagewriter.h"
#include "drivelistitem.h"
#include "downloadextractthread.h"
#include "dependencies/drivelist/src/drivelist.hpp"
#include "dependencies/sha256crypt/sha256crypt.h"
#include "driveformatthread.h"
#include "localfileextractthread.h"
#include "downloadstatstelemetry.h"
#include <archive.h>
#include <archive_entry.h>
#include <random>
#include <QFileInfo>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include <QProcess>
#include <QRegExp>
#include <QStandardPaths>
#include <QStorageInfo>
#include <QTimeZone>
#include <QWindow>
#include <QGuiApplication>
#include <QNetworkInterface>
#include <QHostAddress>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QDateTime>
#include <QDebug>
#include <QVersionNumber>
#ifndef QT_NO_WIDGETS
#include <QFileDialog>
#include <QApplication>
#endif
#ifdef Q_OS_DARWIN
#include <QtNetwork>
#include <QMessageBox>
#include <security/security.h>
#else
#include "openssl/evp.h"
#include "openssl/sha.h"
#endif
#ifdef Q_OS_WIN
#include <windows.h>
#include <winioctl.h>
#include <wlanapi.h>
#ifndef WLAN_PROFILE_GET_PLAINTEXT_KEY
#define WLAN_PROFILE_GET_PLAINTEXT_KEY 4
#endif
#include <QWinTaskbarButton>
#include <QWinTaskbarProgress>
#endif
#ifdef QT_NO_WIDGETS
#include <QtPlatformHeaders/QEglFSFunctions>
#endif
ImageWriter::ImageWriter(QObject *parent)
: QObject(parent), _repo(QUrl(QString(OSLIST_URL))), _dlnow(0), _verifynow(0),
_engine(nullptr), _thread(nullptr), _verifyEnabled(false), _cachingEnabled(false),
_embeddedMode(false), _online(false), _trans(nullptr)
{
connect(&_polltimer, SIGNAL(timeout()), SLOT(pollProgress()));
QString platform;
if (qobject_cast<QGuiApplication*>(QCoreApplication::instance()) )
{
platform = QGuiApplication::platformName();
}
else
{
platform = "cli";
}
if (platform == "eglfs" || platform == "linuxfb")
{
_embeddedMode = true;
connect(&_networkchecktimer, SIGNAL(timeout()), SLOT(pollNetwork()));
_networkchecktimer.start(100);
changeKeyboard(detectPiKeyboard());
if (_currentKeyboard.isEmpty())
_currentKeyboard = "us";
QFile f("/sys/bus/nvmem/devices/rmem0/nvmem");
if (f.exists() && f.open(f.ReadOnly))
{
QByteArrayList eepromSettings = f.readAll().split('\n');
f.close();
for (QByteArray setting : eepromSettings)
{
if (setting.startsWith("IMAGER_REPO_URL="))
{
_repo = setting.mid(16).trimmed();
qDebug() << "Repository from EEPROM:" << _repo;
}
}
}
}
#ifdef Q_OS_WIN
_taskbarButton = nullptr;
#endif
if (!_settings.isWritable() && !_settings.fileName().isEmpty())
{
/* Settings file is not writable, probably run by root previously */
QString settingsFile = _settings.fileName();
qDebug() << "Settings file" << settingsFile << "not writable. Recreating it";
QFile f(_settings.fileName());
QByteArray oldsettings;
if (f.open(f.ReadOnly))
{
oldsettings = f.readAll();
f.close();
}
f.remove();
if (f.open(f.WriteOnly))
{
f.write(oldsettings);
f.close();
_settings.sync();
}
else
{
qDebug() << "Error deleting and recreating settings file. Please remove manually.";
}
}
_settings.beginGroup("caching");
_cachingEnabled = !_embeddedMode && _settings.value("enabled", IMAGEWRITER_ENABLE_CACHE_DEFAULT).toBool();
_cachedFileHash = _settings.value("lastDownloadSHA256").toByteArray();
_cacheFileName = QStandardPaths::writableLocation(QStandardPaths::CacheLocation)+QDir::separator()+"lastdownload.cache";
if (!_cachedFileHash.isEmpty())
{
QFileInfo f(_cacheFileName);
if (!f.exists() || !f.isReadable() || !f.size())
{
_cachedFileHash.clear();
_settings.remove("lastDownloadSHA256");
_settings.sync();
}
}
_settings.endGroup();
QDir dir(":/i18n", "rpi-imager_*.qm");
QStringList transFiles = dir.entryList();
QLocale currentLocale;
QStringList localeComponents = currentLocale.name().split('_');
QString currentlangcode;
if (!localeComponents.isEmpty())
currentlangcode = localeComponents.first();
for (QString tf : transFiles)
{
QString langcode = tf.mid(11, tf.length()-14);
/* FIXME: we currently lack a font with support for Chinese characters in embedded mode */
if (isEmbeddedMode() && langcode == "zh")
continue;
QLocale loc(langcode);
/* Use "English" for "en" and not "American English" */
QString langname = (langcode == "en" ? "English" : loc.nativeLanguageName() );
_translations.insert(langname, langcode);
if (langcode == currentlangcode)
{
_currentLang = langname;
}
}
//_currentKeyboard = "us";
}
ImageWriter::~ImageWriter()
{
if (_trans)
{
QCoreApplication::removeTranslator(_trans);
delete _trans;
}
}
void ImageWriter::setEngine(QQmlApplicationEngine *engine)
{
_engine = engine;
}
/* Set URL to download from */
void ImageWriter::setSrc(const QUrl &url, quint64 downloadLen, quint64 extrLen, QByteArray expectedHash, bool multifilesinzip, QString parentcategory, QString osname, QByteArray initFormat)
{
_src = url;
_downloadLen = downloadLen;
_extrLen = extrLen;
_expectedHash = expectedHash;
_multipleFilesInZip = multifilesinzip;
_parentCategory = parentcategory;
_osName = osname;
_initFormat = (initFormat == "none") ? "" : initFormat;
if (!_downloadLen && url.isLocalFile())
{
QFileInfo fi(url.toLocalFile());
_downloadLen = fi.size();
}
if (url.isLocalFile())
{
_initFormat = "auto";
}
}
/* Set device to write to */
void ImageWriter::setDst(const QString &device, quint64 deviceSize)
{
_dst = device;
_devLen = deviceSize;
}
/* Returns true if src and dst are set */
bool ImageWriter::readyToWrite()
{
return !_src.isEmpty() && !_dst.isEmpty();
}
/* Start writing */
void ImageWriter::startWrite()
{
if (!readyToWrite())
return;
if (_src.toString() == "internal://format")
{
DriveFormatThread *dft = new DriveFormatThread(_dst.toLatin1(), this);
connect(dft, SIGNAL(success()), SLOT(onSuccess()));
connect(dft, SIGNAL(error(QString)), SLOT(onError(QString)));
dft->start();
return;
}
QByteArray urlstr = _src.toString(_src.FullyEncoded).toLatin1();
QString lowercaseurl = urlstr.toLower();
bool compressed = lowercaseurl.endsWith(".zip") || lowercaseurl.endsWith(".xz") || lowercaseurl.endsWith(".bz2") || lowercaseurl.endsWith(".gz") || lowercaseurl.endsWith(".7z") || lowercaseurl.endsWith(".zst") || lowercaseurl.endsWith(".cache");
if (!_extrLen && _src.isLocalFile())
{
if (!compressed)
_extrLen = _downloadLen;
else if (lowercaseurl.endsWith(".zip"))
_parseCompressedFile();
}
if (_devLen && _extrLen > _devLen)
{
emit error(tr("Storage capacity is not large enough.<br>Needs to be at least %1 GB.").arg(QString::number(_extrLen/1000000000.0, 'f', 1)));
return;
}
if (_extrLen && !_multipleFilesInZip && _extrLen % 512 != 0)
{
emit error(tr("Input file is not a valid disk image.<br>File size %1 bytes is not a multiple of 512 bytes.").arg(_extrLen));
return;
}
if (!_expectedHash.isEmpty() && _cachedFileHash == _expectedHash)
{
// Use cached file
urlstr = QUrl::fromLocalFile(_cacheFileName).toString(_src.FullyEncoded).toLatin1();
}
if (QUrl(urlstr).isLocalFile())
{
_thread = new LocalFileExtractThread(urlstr, _dst.toLatin1(), _expectedHash, this);
}
else if (compressed)
{
_thread = new DownloadExtractThread(urlstr, _dst.toLatin1(), _expectedHash, this);
if (_repo.toString() == OSLIST_URL)
{
DownloadStatsTelemetry *tele = new DownloadStatsTelemetry(urlstr, _parentCategory.toLatin1(), _osName.toLatin1(), this);
connect(tele, SIGNAL(finished()), tele, SLOT(deleteLater()));
tele->start();
}
}
else
{
_thread = new DownloadThread(urlstr, _dst.toLatin1(), _expectedHash, this);
_thread->setInputBufferSize(IMAGEWRITER_UNCOMPRESSED_BLOCKSIZE);
}
connect(_thread, SIGNAL(success()), SLOT(onSuccess()));
connect(_thread, SIGNAL(error(QString)), SLOT(onError(QString)));
connect(_thread, SIGNAL(finalizing()), SLOT(onFinalizing()));
connect(_thread, SIGNAL(preparationStatusUpdate(QString)), SLOT(onPreparationStatusUpdate(QString)));
_thread->setVerifyEnabled(_verifyEnabled);
_thread->setUserAgent(QString("Mozilla/5.0 rpi-imager/%1").arg(constantVersion()).toUtf8());
_thread->setImageCustomization(_config, _cmdline, _firstrun, _cloudinit, _cloudinitNetwork, _initFormat);
if (!_expectedHash.isEmpty() && _cachedFileHash != _expectedHash && _cachingEnabled)
{
if (!_cachedFileHash.isEmpty())
{
if (_settings.isWritable() && QFile::remove(_cacheFileName))
{
_settings.remove("caching/lastDownloadSHA256");
_settings.sync();
_cachedFileHash.clear();
}
else
{
qDebug() << "Error removing old cache file. Disabling caching";
_cachingEnabled = false;
}
}
if (_cachingEnabled)
{
QStorageInfo si(QStandardPaths::writableLocation(QStandardPaths::CacheLocation));
qint64 avail = si.bytesAvailable();
qDebug() << "Available disk space for caching:" << avail/1024/1024/1024 << "GB";
if (avail-_downloadLen < IMAGEWRITER_MINIMAL_SPACE_FOR_CACHING)
{
qDebug() << "Low disk space. Not caching files to disk.";
}
else
{
_thread->setCacheFile(_cacheFileName, _downloadLen);
connect(_thread, SIGNAL(cacheFileUpdated(QByteArray)), SLOT(onCacheFileUpdated(QByteArray)));
}
}
}
if (_multipleFilesInZip)
{
static_cast<DownloadExtractThread *>(_thread)->enableMultipleFileExtraction();
DriveFormatThread *dft = new DriveFormatThread(_dst.toLatin1(), this);
connect(dft, SIGNAL(success()), _thread, SLOT(start()));
connect(dft, SIGNAL(error(QString)), SLOT(onError(QString)));
dft->start();
}
else
{
_thread->start();
}
startProgressPolling();
}
void ImageWriter::onCacheFileUpdated(QByteArray sha256)
{
_settings.setValue("caching/lastDownloadSHA256", sha256);
_settings.sync();
_cachedFileHash = sha256;
qDebug() << "Done writing cache file";
}
/* Cancel write */
void ImageWriter::cancelWrite()
{
if (_thread)
{
connect(_thread, SIGNAL(finished()), SLOT(onCancelled()));
_thread->cancelDownload();
}
if (!_thread || !_thread->isRunning())
{
emit cancelled();
}
}
void ImageWriter::onCancelled()
{
sender()->deleteLater();
if (sender() == _thread)
{
_thread = nullptr;
}
emit cancelled();
}
/* Return true if url is in our local disk cache */
bool ImageWriter::isCached(const QUrl &, const QByteArray &sha256)
{
return !sha256.isEmpty() && _cachedFileHash == sha256;
}
/* Utility function to return filename part from URL */
QString ImageWriter::fileNameFromUrl(const QUrl &url)
{
//return QFileInfo(url.toLocalFile()).fileName();
return url.fileName();
}
QString ImageWriter::srcFileName()
{
return _src.isEmpty() ? "" : _src.fileName();
}
/* Function to return OS list URL */
QUrl ImageWriter::constantOsListUrl() const
{
return _repo;
}
/* Function to return version */
QString ImageWriter::constantVersion() const
{
return IMAGER_VERSION_STR;
}
/* Returns true if version argument is newer than current program */
bool ImageWriter::isVersionNewer(const QString &version)
{
return QVersionNumber::fromString(version) > QVersionNumber::fromString(IMAGER_VERSION_STR);
}
void ImageWriter::setCustomOsListUrl(const QUrl &url)
{
_repo = url;
}
/* Start polling the list of available drives */
void ImageWriter::startDriveListPolling()
{
_drivelist.startPolling();
}
/* Stop polling the list of available drives */
void ImageWriter::stopDriveListPolling()
{
_drivelist.stopPolling();
}
DriveListModel *ImageWriter::getDriveList()
{
return &_drivelist;
}
void ImageWriter::startProgressPolling()
{
_powersave.applyBlock(tr("Downloading and writing image"));
#ifdef Q_OS_WIN
if (!_taskbarButton && _engine)
{
QWindow* window = qobject_cast<QWindow*>( _engine->rootObjects().at(0) );
if (window)
{
_taskbarButton = new QWinTaskbarButton(this);
_taskbarButton->setWindow(window);
_taskbarButton->progress()->setMaximum(0);
_taskbarButton->progress()->setVisible(true);
}
}
#endif
_dlnow = 0; _verifynow = 0;
_polltimer.start(PROGRESS_UPDATE_INTERVAL);
}
void ImageWriter::stopProgressPolling()
{
_polltimer.stop();
pollProgress();
#ifdef Q_OS_WIN
if (_taskbarButton)
{
_taskbarButton->progress()->setVisible(false);
_taskbarButton->deleteLater();
_taskbarButton = nullptr;
}
#endif
_powersave.removeBlock();
}
void ImageWriter::pollProgress()
{
if (!_thread)
return;
quint64 newDlNow, dlTotal;
if (_extrLen)
{
newDlNow = _thread->bytesWritten();
dlTotal = _extrLen;
}
else
{
newDlNow = _thread->dlNow();
dlTotal = _thread->dlTotal();
}
if (newDlNow != _dlnow)
{
_dlnow = newDlNow;
#ifdef Q_OS_WIN
if (_taskbarButton)
{
_taskbarButton->progress()->setMaximum(dlTotal/1048576);
_taskbarButton->progress()->setValue(newDlNow/1048576);
}
#endif
emit downloadProgress(newDlNow, dlTotal);
}
quint64 newVerifyNow = _thread->verifyNow();
if (newVerifyNow != _verifynow)
{
_verifynow = newVerifyNow;
quint64 verifyTotal = _thread->verifyTotal();
#ifdef Q_OS_WIN
if (_taskbarButton)
{
_taskbarButton->progress()->setMaximum(verifyTotal/1048576);
_taskbarButton->progress()->setValue(newVerifyNow/1048576);
}
#endif
emit verifyProgress(newVerifyNow, verifyTotal);
}
}
void ImageWriter::setVerifyEnabled(bool verify)
{
_verifyEnabled = verify;
if (_thread)
_thread->setVerifyEnabled(verify);
}
/* Relay events from download thread to QML */
void ImageWriter::onSuccess()
{
stopProgressPolling();
emit success();
#ifndef QT_NO_WIDGETS
if (_settings.value("beep").toBool() && qobject_cast<QApplication*>(QCoreApplication::instance()) )
{
QApplication::beep();
}
#endif
}
void ImageWriter::onError(QString msg)
{
stopProgressPolling();
emit error(msg);
#ifndef QT_NO_WIDGETS
if (_settings.value("beep").toBool() && qobject_cast<QApplication*>(QCoreApplication::instance()) )
QApplication::beep();
#endif
}
void ImageWriter::onFinalizing()
{
_polltimer.stop();
emit finalizing();
}
void ImageWriter::onPreparationStatusUpdate(QString msg)
{
emit preparationStatusUpdate(msg);
}
void ImageWriter::openFileDialog()
{
#ifndef QT_NO_WIDGETS
QSettings settings;
QString path = settings.value("lastpath").toString();
QFileInfo fi(path);
if (path.isEmpty() || !fi.exists() || !fi.isReadable() )
path = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation);
QFileDialog *fd = new QFileDialog(nullptr, tr("Select image"),
path,
"Image files (*.img *.zip *.iso *.gz *.xz *.zst);;All files (*.*)");
connect(fd, SIGNAL(fileSelected(QString)), SLOT(onFileSelected(QString)));
if (_engine)
{
fd->createWinId();
QWindow *handle = fd->windowHandle();
QWindow *qmlwindow = qobject_cast<QWindow *>(_engine->rootObjects().value(0));
if (qmlwindow)
{
handle->setTransientParent(qmlwindow);
}
}
fd->show();
#endif
}
void ImageWriter::onFileSelected(QString filename)
{
#ifndef QT_NO_WIDGETS
QFileInfo fi(filename);
QSettings settings;
if (fi.isFile())
{
QString path = fi.path();
if (path != settings.value("lastpath"))
{
settings.setValue("lastpath", path);
settings.sync();
}
emit fileSelected(QUrl::fromLocalFile(filename));
}
else
{
qDebug() << "Item selected is not a regular file";
}
sender()->deleteLater();
#endif
}
void ImageWriter::_parseCompressedFile()
{
struct archive *a = archive_read_new();
struct archive_entry *entry;
QByteArray fn = _src.toLocalFile().toLatin1();
int numFiles = 0;
_extrLen = 0;
archive_read_support_filter_all(a);
archive_read_support_format_all(a);
if (archive_read_open_filename(a, fn.data(), 10240) == ARCHIVE_OK)
{
while ( (archive_read_next_header(a, &entry)) == ARCHIVE_OK)
{
if (archive_entry_size(entry) > 0)
{
_extrLen += archive_entry_size(entry);
numFiles++;
}
}
}
if (numFiles > 1)
_multipleFilesInZip = true;
qDebug() << "Parsed .zip file containing" << numFiles << "files, uncompressed size:" << _extrLen;
}
bool ImageWriter::isOnline()
{
return _online || !_embeddedMode;
}
void ImageWriter::pollNetwork()
{
#ifdef Q_OS_LINUX
/* Check if we have an IP-address other than localhost */
QList<QHostAddress> addresses = QNetworkInterface::allAddresses();
foreach (QHostAddress a, addresses)
{
if (!a.isLoopback() && a.scopeId().isEmpty())
{
/* Not a loopback or IPv6 link-local address, so online */
qDebug() << "IP:" << a;
_online = true;
break;
}
}
if (_online)
{
_networkchecktimer.stop();
// Wait another 0.1 sec, as dhcpcd may not have set up nameservers yet
QTimer::singleShot(100, this, SLOT(syncTime()));
}
#endif
}
void ImageWriter::syncTime()
{
#ifdef Q_OS_LINUX
qDebug() << "Network online. Synchronizing time.";
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
connect(manager, SIGNAL(finished(QNetworkReply*)), SLOT(onTimeSyncReply(QNetworkReply*)));
manager->head(QNetworkRequest(QUrl(TIME_URL)));
#endif
}
void ImageWriter::onTimeSyncReply(QNetworkReply *reply)
{
#ifdef Q_OS_LINUX
if (reply->hasRawHeader("Date"))
{
QDateTime dt = QDateTime::fromString(reply->rawHeader("Date"), Qt::RFC2822Date);
qDebug() << "Received current time from server:" << dt;
struct timeval tv = {
(time_t) dt.toSecsSinceEpoch(), 0
};
::settimeofday(&tv, NULL);
emit networkOnline();
}
else
{
qDebug() << "Error synchronizing time. Trying again in 3 seconds";
QTimer::singleShot(3000, this, SLOT(syncTime()));
}
reply->deleteLater();
#else
Q_UNUSED(reply)
#endif
}
bool ImageWriter::isEmbeddedMode()
{
return _embeddedMode;
}
/* Mount any USB sticks that can contain source images under /media */
bool ImageWriter::mountUsbSourceMedia()
{
int devices = 0;
#ifdef Q_OS_LINUX
QDir dir("/sys/class/block");
QStringList list = dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot);
if (!dir.exists("/media"))
dir.mkdir("/media");
for (auto devname : list)
{
if (!devname.startsWith("mmcblk0") && !QFile::symLinkTarget("/sys/class/block/"+devname).contains("/devices/virtual/"))
{
QString mntdir = "/media/"+devname;
if (dir.exists(mntdir))
{
devices++;
continue;
}
dir.mkdir(mntdir);
QStringList args = { "-o", "ro", QString("/dev/")+devname, mntdir };
if ( QProcess::execute("mount", args) == 0 )
devices++;
else
dir.rmdir(mntdir);
}
}
#endif
return devices > 0;
}
QByteArray ImageWriter::getUsbSourceOSlist()
{
#ifdef Q_OS_LINUX
QJsonArray oslist;
QDir dir("/media");
QStringList medialist = dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot);
QStringList namefilters = {"*.img", "*.zip", "*.gz", "*.xz", "*.zst"};
for (auto devname : medialist)
{
QDir subdir("/media/"+devname);
QStringList files = subdir.entryList(namefilters, QDir::Files, QDir::Name);
for (auto file : files)
{
QString path = "/media/"+devname+"/"+file;
QFileInfo fi(path);
QJsonObject f = {
{"name", file},
{"description", devname+"/"+file},
{"url", QUrl::fromLocalFile(path).toString() },
{"release_date", ""},
{"image_download_size", fi.size()}
};
oslist.append(f);
}
}
return QJsonDocument(oslist).toJson();
#else
return QByteArray();
#endif
}
QString ImageWriter::getDefaultPubKey()
{
QByteArray pubkey;
QFile pubfile(QDir::homePath()+"/.ssh/id_rsa.pub");
if (pubfile.exists() && pubfile.open(QFile::ReadOnly))
{
pubkey = pubfile.readAll().trimmed();
pubfile.close();
}
return pubkey;
}
QString ImageWriter::getTimezone()
{
return QTimeZone::systemTimeZoneId();
}
QStringList ImageWriter::getTimezoneList()
{
QStringList timezones;
QFile f(":/timezones.txt");
if ( f.open(f.ReadOnly) )
{
timezones = QString(f.readAll()).split('\n');
f.close();
}
return timezones;
}
QStringList ImageWriter::getCountryList()
{
QStringList countries;
QFile f(":/countries.txt");
if ( f.open(f.ReadOnly) )
{
countries = QString(f.readAll()).trimmed().split('\n');
f.close();
}
return countries;
}
QStringList ImageWriter::getKeymapLayoutList()
{
QStringList keymaps;
QFile f(":/keymap-layouts.txt");
if ( f.open(f.ReadOnly) )
{
keymaps = QString(f.readAll()).trimmed().split('\n');
f.close();
}
return keymaps;
}
QString ImageWriter::getSSID()
{
/* Qt used to have proper bearer management that was able to provide a list of
SSIDs, but since they retired it, resort to calling platform specific tools for now.
Minimal implementation that only gets the currently connected SSID */
QString program, regexpstr, ssid;
QStringList args;
QProcess proc;
#ifdef Q_OS_WIN
program = "netsh";
args << "wlan" << "show" << "interfaces";
regexpstr = "[ \t]+SSID[ \t]*: (.+)";
#else
#ifdef Q_OS_DARWIN
program = "/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport";
args << "-I";
regexpstr = "[ \t]+SSID: (.+)";
#else
program = "iwgetid";
args << "-r";
#endif
#endif
proc.start(program, args);
if (proc.waitForStarted(2000) && proc.waitForFinished(2000))
{
if (regexpstr.isEmpty())
{
ssid = proc.readAll().trimmed();
}
else
{
QRegExp rx(regexpstr);
QList<QByteArray> outputlines = proc.readAll().replace('\r', "").split('\n');
for (QByteArray line : outputlines) {
if (rx.indexIn(line) != -1)
{
ssid = rx.cap(1);
break;
}
}
}
}
return ssid;
}
QString ImageWriter::getPSK(const QString &ssid)
{
#ifdef Q_OS_WIN
/* Windows allows retrieving wifi PSK */
HANDLE h;
DWORD ret = 0;
DWORD supportedVersion = 0;
DWORD clientVersion = 2;
QString psk;
if (WlanOpenHandle(clientVersion, NULL, &supportedVersion, &h) != ERROR_SUCCESS)
return QString();
PWLAN_INTERFACE_INFO_LIST ifList = NULL;
if (WlanEnumInterfaces(h, NULL, &ifList) == ERROR_SUCCESS)
{
for (int i=0; i < ifList->dwNumberOfItems; i++)
{
PWLAN_PROFILE_INFO_LIST profileList = NULL;
if (WlanGetProfileList(h, &ifList->InterfaceInfo[i].InterfaceGuid,
NULL, &profileList) == ERROR_SUCCESS)
{
for (int j=0; j < profileList->dwNumberOfItems; j++)
{
QString s = QString::fromWCharArray(profileList->ProfileInfo[j].strProfileName);
qDebug() << "Enumerating wifi profiles, SSID found:" << s << " looking for:" << ssid;
if (s == ssid) {
DWORD flags = WLAN_PROFILE_GET_PLAINTEXT_KEY;
DWORD access = 0;
DWORD ret = 0;
LPWSTR xmlstr = NULL;
if ( (ret = WlanGetProfile(h, &ifList->InterfaceInfo[i].InterfaceGuid, profileList->ProfileInfo[j].strProfileName,
NULL, &xmlstr, &flags, &access)) == ERROR_SUCCESS && xmlstr)
{
QString xml = QString::fromWCharArray(xmlstr);
qDebug() << "XML wifi profile:" << xml;
QRegExp rx("<keyMaterial>(.+)</keyMaterial>");
if (rx.indexIn(xml) != -1) {
psk = rx.cap(1);
}
WlanFreeMemory(xmlstr);
break;
}
}
}
}
if (profileList) {
WlanFreeMemory(profileList);
}
}
}
if (ifList)
WlanFreeMemory(ifList);
WlanCloseHandle(h, NULL);
return psk;
#else
#ifdef Q_OS_DARWIN
SecKeychainRef keychainRef;
QString psk;
QByteArray ssidAscii = ssid.toLatin1();
if (QMessageBox::question(nullptr, "",
tr("Would you like to prefill the wifi password from the system keychain?")) == QMessageBox::Yes)
{
if (SecKeychainOpen("/Library/Keychains/System.keychain", &keychainRef) == errSecSuccess)
{
UInt32 resultLen;
void *result;
if (SecKeychainFindGenericPassword(keychainRef, 0, NULL, ssidAscii.length(), ssidAscii.constData(), &resultLen, &result, NULL) == errSecSuccess)
{
psk = QByteArray((char *) result, resultLen);
SecKeychainItemFreeContent(NULL, result);
}
CFRelease(keychainRef);
}
}
return psk;
#else
Q_UNUSED(ssid)
return QString();
#endif
#endif
}
bool ImageWriter::getBoolSetting(const QString &key)
{
/* Some keys have defaults */