Merge branch 'autoupdate'

.gitignore

@@ -8,3 +8,5 @@ Makefile
 qtox
 *.qm
 *.orig
+build-*-Release
+build-*-Debug

qtox.pro

@@ -57,7 +57,7 @@ contains(JENKINS,YES) {
 # Rules for Windows, Mac OSX, and Linux
 win32 {
     RC_FILE = windows/qtox.rc
-    LIBS += -liphlpapi -L$$PWD/libs/lib -ltoxav -ltoxcore -ltoxencryptsave -ltoxdns -lvpx -lpthread
+    LIBS += -liphlpapi -L$$PWD/libs/lib -lsodium -ltoxav -ltoxcore -ltoxencryptsave -ltoxdns -lvpx -lpthread
     LIBS += -L$$PWD/libs/lib -lopencv_core248 -lopencv_highgui248 -lopencv_imgproc248 -lOpenAL32 -lopus
     LIBS += -lz -lopengl32 -lole32 -loleaut32 -luuid -lvfw32 -ljpeg -ltiff -lpng -ljasper -lIlmImf -lHalf -lws2_32
 } else {
@@ -76,7 +76,7 @@ win32 {
 	    LIBS += -Wl,-Bdynamic -lv4l1 -lv4l2 -lavformat -lavcodec -lavutil -lswscale -lusb-1.0
 
         } else {
-            LIBS += -L$$PWD/libs/lib/ -ltoxcore -ltoxav -ltoxencryptsave -ltoxdns -lvpx -lopenal -lopencv_core -lopencv_highgui -lopencv_imgproc
+            LIBS += -L$$PWD/libs/lib/ -ltoxcore -ltoxav -ltoxencryptsave -ltoxdns -lvpx -lsodium -lopenal -lopencv_core -lopencv_highgui -lopencv_imgproc
         }
 
         contains(JENKINS, YES) {
@@ -146,7 +146,9 @@ HEADERS  += src/widget/form/addfriendform.h \
     src/ipc.h \
     src/widget/toxuri.h \
     src/toxdns.h \
-    src/widget/toxsave.h
+    src/widget/toxsave.h \
+    src/autoupdate.h \
+    src/misc/serialize.h
 
 SOURCES += \
     src/widget/form/addfriendform.cpp \
@@ -209,4 +211,6 @@ SOURCES += \
     src/widget/toxuri.cpp \
     src/toxdns.cpp \
     src/ipc.cpp \
-    src/widget/toxsave.cpp    
+    src/widget/toxsave.cpp \    
+    src/autoupdate.cpp \
+    src/misc/serialize.cpp

src/autoupdate.cpp

@@ -0,0 +1,414 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "src/autoupdate.h"
+#include "src/misc/serialize.h"
+#include "src/misc/settings.h"
+#include "src/widget/widget.h"
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+#include <QCoreApplication>
+#include <QFile>
+#include <QDir>
+#include <QProcess>
+#include <QtConcurrent/QtConcurrent>
+#include <QMessageBox>
+
+#ifdef Q_OS_WIN
+#include <windows.h>
+#include <shellapi.h>
+#endif
+
+#ifdef Q_OS_WIN
+const QString AutoUpdater::platform = "win32";
+const QString AutoUpdater::updaterBin = "qtox-updater.exe";
+#else
+const QString AutoUpdater::platform;
+const QString AutoUpdater::updaterBin;
+#endif
+const QString AutoUpdater::updateServer = "http://mlkj.bounceme.net";
+const QString AutoUpdater::checkURI = AutoUpdater::updateServer+"/qtox/"+AutoUpdater::platform+"/version";
+const QString AutoUpdater::flistURI = AutoUpdater::updateServer+"/qtox/"+AutoUpdater::platform+"/flist";
+const QString AutoUpdater::filesURI = AutoUpdater::updateServer+"/qtox/"+AutoUpdater::platform+"/files/";
+unsigned char AutoUpdater::key[crypto_sign_PUBLICKEYBYTES] =
+{
+    0xa5, 0x80, 0xf3, 0xb7, 0xd0, 0x10, 0xc0, 0xf9, 0xd6, 0xcf, 0x48, 0x15, 0x99, 0x70, 0x92, 0x49,
+    0xf6, 0xe8, 0xe5, 0xe2, 0x6c, 0x73, 0x8c, 0x48, 0x25, 0xed, 0x01, 0x72, 0xf7, 0x6c, 0x17, 0x28
+};
+
+bool AutoUpdater::isUpdateAvailable()
+{
+    QString newVersion = getUpdateVersion();
+    if (newVersion.isEmpty() || newVersion == GIT_VERSION)
+        return false;
+    else
+        return true;
+}
+
+QString AutoUpdater::getUpdateVersion()
+{
+    QString version;
+
+    // Updates only for supported platforms
+    if (platform.isEmpty())
+        return version;
+
+    QNetworkAccessManager *manager = new QNetworkAccessManager;
+    QNetworkReply* reply = manager->get(QNetworkRequest(QUrl(checkURI)));
+    while (!reply->isFinished())
+        qApp->processEvents();
+
+    if (reply->error() != QNetworkReply::NoError)
+    {
+        qWarning() << "AutoUpdater: getUpdateVersion: network error: "<<reply->errorString();
+        reply->deleteLater();
+        manager->deleteLater();
+        return version;
+    }
+
+    QByteArray data = reply->readAll();
+    reply->deleteLater();
+    manager->deleteLater();
+    if (data.size() < (int)(1+crypto_sign_BYTES))
+        return version;
+
+    // Check updater protocol version
+    if ((int)data[0] != '1')
+    {
+        qWarning() << "AutoUpdater: getUpdateVersion: Bad version "<<(uint8_t)data[0];
+        return version;
+    }
+
+    // Check the signature
+    QByteArray sigData = data.mid(1, crypto_sign_BYTES);
+    unsigned char* sig = (unsigned char*)sigData.data();
+    QByteArray msgData = data.mid(1+crypto_sign_BYTES);
+    unsigned char* msg = (unsigned char*)msgData.data();
+
+    if (crypto_sign_verify_detached(sig, msg, msgData.size(), key) != 0)
+    {
+        qCritical() << "AutoUpdater: getUpdateVersion: RECEIVED FORGED VERSION FILE FROM "<<updateServer;
+        return version;
+    }
+
+    version = msgData;
+
+    return version;
+}
+
+QList<AutoUpdater::UpdateFileMeta> AutoUpdater::parseFlist(QByteArray flistData)
+{
+    QList<UpdateFileMeta> flist;
+
+    if (flistData.isEmpty())
+    {
+        qWarning() << "AutoUpdater::parseflist: Empty data";
+        return flist;
+    }
+
+    // Check version
+    if (flistData[0] != '1')
+    {
+        qWarning() << "AutoUpdater: parseflist: Bad version "<<(uint8_t)flistData[0];
+        return flist;
+    }
+    flistData = flistData.mid(1);
+
+    // Check signature
+    if (flistData.size() < (int)(crypto_sign_BYTES))
+    {
+        qWarning() << "AutoUpdater::parseflist: Truncated data";
+        return flist;
+    }
+    else
+    {
+        QByteArray msgData = flistData.mid(crypto_sign_BYTES);
+        unsigned char* msg = (unsigned char*)msgData.data();
+        if (crypto_sign_verify_detached((unsigned char*)flistData.data(), msg, msgData.size(), key) != 0)
+        {
+            qCritical() << "AutoUpdater: parseflist: FORGED FLIST FILE";
+            return flist;
+        }
+        flistData = flistData.mid(crypto_sign_BYTES);
+    }
+
+    // Parse. We assume no errors handling needed since the signature is valid.
+    while (!flistData.isEmpty())
+    {
+        UpdateFileMeta newFile;
+
+        memcpy(newFile.sig, flistData.data(), crypto_sign_BYTES);
+        flistData = flistData.mid(crypto_sign_BYTES);
+
+        newFile.id = dataToString(flistData);
+        flistData = flistData.mid(newFile.id.size() + getVUint32Size(flistData));
+
+        newFile.installpath = dataToString(flistData);
+        flistData = flistData.mid(newFile.installpath.size() + getVUint32Size(flistData));
+
+        newFile.size = dataToUint64(flistData);
+        flistData = flistData.mid(8);
+
+        flist += newFile;
+    }
+
+    return flist;
+}
+
+QByteArray AutoUpdater::getUpdateFlist()
+{
+    QByteArray flist;
+
+    QNetworkAccessManager *manager = new QNetworkAccessManager;
+    QNetworkReply* reply = manager->get(QNetworkRequest(QUrl(flistURI)));
+    while (!reply->isFinished())
+        qApp->processEvents();
+
+    if (reply->error() != QNetworkReply::NoError)
+    {
+        qWarning() << "AutoUpdater: getUpdateFlist: network error: "<<reply->errorString();
+        reply->deleteLater();
+        manager->deleteLater();
+        return flist;
+    }
+
+    flist = reply->readAll();
+    reply->deleteLater();
+    manager->deleteLater();
+
+    return flist;
+}
+
+QByteArray AutoUpdater::getLocalFlist()
+{
+    QByteArray flist;
+
+    QFile flistFile("flist");
+    if (!flistFile.open(QIODevice::ReadOnly))
+    {
+        qWarning() << "AutoUpdater::getLocalFlist: Can't open local flist";
+        return flist;
+    }
+
+    flist = flistFile.readAll();
+    flistFile.close();
+
+    return flist;
+}
+
+QList<AutoUpdater::UpdateFileMeta> AutoUpdater::genUpdateDiff(QList<UpdateFileMeta> updateFlist)
+{
+    QList<UpdateFileMeta> diff;
+    QList<UpdateFileMeta> localFlist = parseFlist(getLocalFlist());
+
+    for (UpdateFileMeta file : updateFlist)
+        if (!localFlist.contains(file))
+            diff += file;
+
+    return diff;
+}
+
+AutoUpdater::UpdateFile AutoUpdater::getUpdateFile(UpdateFileMeta fileMeta)
+{
+    UpdateFile file;
+    file.metadata = fileMeta;
+
+    QNetworkAccessManager *manager = new QNetworkAccessManager;
+    QNetworkReply* reply = manager->get(QNetworkRequest(QUrl(filesURI+fileMeta.id)));
+    while (!reply->isFinished())
+        qApp->processEvents();
+
+    if (reply->error() != QNetworkReply::NoError)
+    {
+        qWarning() << "AutoUpdater: getUpdateFile: network error: "<<reply->errorString();
+        reply->deleteLater();
+        manager->deleteLater();
+        return file;
+    }
+
+    file.data = reply->readAll();
+    reply->deleteLater();
+    manager->deleteLater();
+
+    return file;
+}
+
+
+bool AutoUpdater::downloadUpdate()
+{
+    // Updates only for supported platforms
+    if (platform.isEmpty())
+        return false;
+
+    // Get a list of files to update
+    QByteArray newFlistData = getUpdateFlist();
+    QList<UpdateFileMeta> newFlist = parseFlist(newFlistData);
+    QList<UpdateFileMeta> diff = genUpdateDiff(newFlist);
+
+    qDebug() << "AutoUpdater: Need to update "<<diff.size()<<" files";
+
+    // Create an empty directory to download updates into
+    QString updateDirStr = Settings::getInstance().getSettingsDirPath() + "/update/";
+    QDir updateDir(updateDirStr);
+    if (updateDir.exists())
+        updateDir.removeRecursively();
+    QDir().mkdir(updateDirStr);
+    updateDir = QDir(updateDirStr);
+    if (!updateDir.exists())
+    {
+        qWarning() << "AutoUpdater::downloadUpdate: Can't create update directory, aborting...";
+        return false;
+    }
+
+    // Write the new flist for the updater
+    QFile newFlistFile(updateDirStr+"flist");
+    if (!newFlistFile.open(QIODevice::WriteOnly | QIODevice::Truncate))
+    {
+        qWarning() << "AutoUpdater::downloadUpdate: Can't save new flist file, aborting...";
+        return false;
+    }
+    newFlistFile.write(newFlistData);
+    newFlistFile.close();
+
+    // Download and write each new file
+    for (UpdateFileMeta fileMeta : diff)
+    {
+        qDebug() << "AutoUpdater: Downloading '"+fileMeta.installpath+"' ...";
+
+        // Create subdirs if necessary
+        QString fileDirStr{QFileInfo(updateDirStr+fileMeta.installpath).absolutePath()};
+        if (!QDir(fileDirStr).exists())
+            QDir().mkpath(fileDirStr);
+
+        // Download
+        UpdateFile file = getUpdateFile(fileMeta);
+        if (file.data.isNull())
+        {
+            qWarning() << "AutoUpdater::downloadUpdate: Error downloading a file, aborting...";
+            return false;
+        }
+
+        // Check signature
+        if (crypto_sign_verify_detached(file.metadata.sig, (unsigned char*)file.data.data(),
+                                        file.data.size(), key) != 0)
+        {
+            qCritical() << "AutoUpdater: downloadUpdate: RECEIVED FORGED FILE, aborting...";
+            return false;
+        }
+
+        // Save
+        QFile fileFile(updateDirStr+fileMeta.installpath);
+        if (!fileFile.open(QIODevice::WriteOnly | QIODevice::Truncate))
+        {
+            qWarning() << "AutoUpdater::downloadUpdate: Can't save new update file, aborting...";
+            return false;
+        }
+        fileFile.write(file.data);
+        fileFile.close();
+    }
+
+    return true;
+}
+
+bool AutoUpdater::isLocalUpdateReady()
+{
+    // Updates only for supported platforms
+    if (platform.isEmpty())
+        return false;
+
+    // Check that there's an update dir in the first place, valid or not
+    QString updateDirStr = Settings::getInstance().getSettingsDirPath() + "/update/";
+    QDir updateDir(updateDirStr);
+    if (!updateDir.exists())
+        return false;
+
+    // Check that we have a flist and that every file on the diff exists
+    QFile updateFlistFile(updateDirStr+"flist");
+    if (!updateFlistFile.open(QIODevice::ReadOnly))
+        return false;
+    QByteArray updateFlistData = updateFlistFile.readAll();
+    updateFlistFile.close();
+
+    QList<UpdateFileMeta> updateFlist = parseFlist(updateFlistData);
+    QList<UpdateFileMeta> diff = genUpdateDiff(updateFlist);
+
+    for (UpdateFileMeta fileMeta : diff)
+        if (!QFile::exists(updateDirStr+fileMeta.installpath))
+            return false;
+
+    return true;
+}
+
+void AutoUpdater::installLocalUpdate()
+{
+    qDebug() << "AutoUpdater: About to start the qTox updater to install a local update";
+
+    // Delete the update if we fail so we don't fail again.
+
+    // Updates only for supported platforms.
+    if (platform.isEmpty())
+    {
+        qCritical() << "AutoUpdater: Failed to start the qTox updater, removing the update and exiting";
+        QString updateDirStr = Settings::getInstance().getSettingsDirPath() + "/update/";
+        QDir(updateDirStr).removeRecursively();
+        exit(-1);
+    }
+
+    // Workaround QTBUG-7645
+    // QProcess fails silently when elevation is required instead of showing a UAC prompt on Win7/Vista
+#ifdef Q_OS_WIN
+    int result = (int)::ShellExecuteA(0, "open", updaterBin.toUtf8().constData(), 0, 0, SW_SHOWNORMAL);
+    if (SE_ERR_ACCESSDENIED == result)
+    {
+        // Requesting elevation
+        result = (int)::ShellExecuteA(0, "runas", updaterBin.toUtf8().constData(), 0, 0, SW_SHOWNORMAL);
+    }
+    if (result <= 32)
+    {
+        goto fail;
+    }
+#else
+    if (!QProcess::startDetached(updaterBin))
+        goto fail;
+#endif
+
+    exit(0);
+
+    // Centralized error handling
+fail:
+    qCritical() << "AutoUpdater: Failed to start the qTox updater, removing the update and exiting";
+    QString updateDirStr = Settings::getInstance().getSettingsDirPath() + "/update/";
+    QDir(updateDirStr).removeRecursively();
+    exit(-1);
+}
+
+void AutoUpdater::checkUpdatesAsyncInteractive()
+{
+    QtConcurrent::run(&AutoUpdater::checkUpdatesAsyncInteractiveWorker);
+}
+
+void AutoUpdater::checkUpdatesAsyncInteractiveWorker()
+{
+    if (!isUpdateAvailable())
+        return;
+
+    if (Widget::getInstance()->askMsgboxQuestion(QObject::tr("Update", "The title of a message box"),
+        QObject::tr("An update is available, do you want to download it now ?\nIt will be installed when qTox restarts.")))
+    {
+        downloadUpdate();
+    }
+}

src/autoupdate.h

@@ -0,0 +1,115 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#ifndef AUTOUPDATE_H
+#define AUTOUPDATE_H
+
+#include <QString>
+#include <QList>
+#include <sodium.h>
+
+/// For now we only support auto updates on Windows, although extending it is not a technical issue.
+/// Linux and Mac users are expected to use their package managers or update manually through official channels.
+#ifdef Q_OS_WIN
+#define AUTOUPDATE_ENABLED 1
+#else
+#define AUTOUPDATE_ENABLED 0
+#endif
+
+/// Handles checking and applying updates for qTox
+/// Do *NOT* use auto update unless AUTOUPDATE_ENABLED is defined to 1
+class AutoUpdater
+{
+public:
+    struct UpdateFileMeta
+    {
+        unsigned char sig[crypto_sign_BYTES]; ///< Signature of the file (ed25519)
+        QString id; ///< Unique id of the file
+        QString installpath; ///< Local path including the file name. May be relative to qtox-updater or absolute
+        uint64_t size; ///< Size in bytes of the file
+
+        bool operator==(const UpdateFileMeta& other)
+        {
+            return (size == other.size
+                    && id == other.id && installpath == other.installpath
+                    && memcmp(sig, other.sig, crypto_sign_BYTES) == 0);
+        }
+    };
+
+    struct UpdateFile
+    {
+        UpdateFileMeta metadata;
+        QByteArray data;
+    };
+
+public:
+    /// Connects to the qTox update server, if an updat is found shows a dialog to the user asking to download it
+    /// Runs asynchronously in its own thread, and will return immediatly
+    /// Will call isUpdateAvailable, and as such may processEvents
+    static void checkUpdatesAsyncInteractive();
+    /// Connects to the qTox update server, returns true if an update is available for download
+    /// Will call getUpdateVersion, and as such may block and processEvents
+    static bool isUpdateAvailable();
+    /// Fetch the version string of the last update available from the qTox update server
+    /// Will try to follow qTox's proxy settings, may block and processEvents
+    static QString getUpdateVersion();
+    /// Will try to download an update, if successful returns true and qTox will apply it after a restart
+    /// Will try to follow qTox's proxy settings, may block and processEvents
+    static bool downloadUpdate();
+    /// Returns true if an update is downloaded and ready to be installed
+    /// If so, call installLocalUpdate. If not, call downloadUpdate.
+    /// This only checks that we downloaded an update and didn't stop in the middle, not that every file is still valid
+    static bool isLocalUpdateReady();
+    /// Launches the qTox updater to try to install the local update and exits immediately
+    /// Will not check that the update actually exists, use isLocalUpdateReady first for that
+    /// The qTox updater will restart us after the update is done
+    /// Note: If we fail to start the qTox updater, we will delete the update and exit
+    [[ noreturn ]] static void installLocalUpdate();
+
+protected:
+    /// Parses and validates a flist file. Returns an empty list on error
+    static QList<UpdateFileMeta> parseFlist(QByteArray flistData);
+    /// Gets the update server's flist. Returns an empty array on error
+    /// Will try to follow qTox's proxy settings, may block and processEvents
+    static QByteArray getUpdateFlist();
+    /// Gets the local flist. Returns an empty array on error
+    static QByteArray getLocalFlist();
+    /// Generates a list of files we need to update
+    static QList<UpdateFileMeta> genUpdateDiff(QList<UpdateFileMeta> updateFlist);
+    /// Tries to fetch the file from the update server. Returns a file with a null QByteArray on error.
+    /// Note that a file with an empty but non-null QByteArray is not an error, merely a file of size 0.
+    /// Will try to follow qTox's proxy settings, may block and processEvents
+    static UpdateFile getUpdateFile(UpdateFileMeta fileMeta);
+    /// Does the actual work for checkUpdatesAsyncInteractive
+    /// Blocking, but otherwise has the same properties than checkUpdatesAsyncInteractive
+    static void checkUpdatesAsyncInteractiveWorker();
+
+private:
+    AutoUpdater() = delete;
+
+private:
+    // Constants
+    static const QString updateServer; ///< Hostname of the qTox update server
+    static const QString platform; ///< Name of platform we're trying to get updates for
+    static const QString checkURI; ///< URI of the file containing the latest version string
+    static const QString flistURI; ///< URI of the file containing info on each file (hash, signature, size, name, ..)
+    static const QString filesURI; ///< URI of the actual files of the latest version
+    static const QString updaterBin; ///< Path to the qtox-updater binary
+    static unsigned char key[];
+};
+
+#endif // AUTOUPDATE_H

src/main.cpp

@@ -19,6 +19,7 @@
 #include "src/ipc.h"
 #include "src/widget/toxuri.h"
 #include "src/widget/toxsave.h"
+#include "src/autoupdate.h"
 #include <QApplication>
 #include <QFontDatabase>
 #include <QDebug>
@@ -27,6 +28,8 @@
 #include <QDateTime>
 #include <QMutexLocker>
 
+#include <sodium.h>
+
 #ifdef LOG_TO_FILE
 static QtMessageHandler dflt;
 static QTextStream* logFile {nullptr};
@@ -55,6 +58,8 @@ int main(int argc, char *argv[])
     a.setApplicationName("qTox");
     a.setOrganizationName("Tox");
 
+    sodium_init(); // For the auto-updater
+
 #ifdef LOG_TO_FILE
     logFile = new QTextStream;
     dflt = qInstallMessageHandler(nullptr);
@@ -83,6 +88,12 @@ int main(int argc, char *argv[])
     // Install Unicode 6.1 supporting font
     QFontDatabase::addApplicationFont("://DejaVuSans.ttf");
 
+    // Check whether we have an update waiting to be installed
+#if AUTOUPDATE_ENABLED
+    if (AutoUpdater::isLocalUpdateReady())
+        AutoUpdater::installLocalUpdate(); ///< NORETURN
+#endif
+
     // Inter-process communication
     IPC ipc;
     ipc.registerEventHandler(&toxURIEventHandler);

src/misc/serialize.cpp

@@ -0,0 +1,254 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "src/misc/serialize.h"
+
+QByteArray doubleToData(double num)
+{
+    union
+    {
+        char tab[8];
+        double n;
+    } castUnion;
+    //char n[8];
+    //*((double*) n) = num;
+
+    castUnion.n=num;
+    return QByteArray(castUnion.tab,8);
+}
+
+QByteArray floatToData(float num)
+{
+    union
+    {
+        char tab[4];
+        float n;
+    } castUnion;
+
+    castUnion.n=num;
+    return QByteArray(castUnion.tab,4);
+}
+
+float dataToFloat(QByteArray data)
+{
+    union
+    {
+        char tab[4];
+        float n;
+    } castUnion;
+
+    castUnion.tab[0]=data.data()[0];
+    castUnion.tab[1]=data.data()[1];
+    castUnion.tab[2]=data.data()[2];
+    castUnion.tab[3]=data.data()[3];
+    return castUnion.n;
+}
+
+// Converts a string into PNet string data
+QByteArray stringToData(QString str)
+{
+    QByteArray data(4,0);
+    // Write the size in a Uint of variable lenght (8-32 bits)
+    int i=0;
+    uint num1 = (uint)str.toUtf8().size();
+    while (num1 >= 0x80)
+    {
+        data[i] = (unsigned char)(num1 | 0x80); i++;
+        num1 = num1 >> 7;
+    }
+    data[i]=num1;
+    data.resize(i+1);
+    data+=str.toUtf8();
+    return data;
+}
+
+QString dataToString(QByteArray data)
+{
+    // Variable UInt32
+    unsigned char num3;
+    int num = 0;
+    int num2 = 0;
+    int i=0;
+    do
+    {
+        num3 = data[i]; i++;
+        num |= (num3 & 0x7f) << num2;
+        num2 += 7;
+    } while ((num3 & 0x80) != 0);
+    unsigned int strlen = (uint) num;
+
+    if (!strlen)
+        return QString();
+
+    data = data.right(data.size()-i); // Remove the strlen
+    data.truncate(strlen);
+    return QString(data);
+}
+
+float dataToRangedSingle(float min, float max, int numberOfBits, QByteArray data)
+{
+    uint endvalue=0;
+    uint value=0;
+    if (numberOfBits <= 8)
+    {
+        endvalue = (uchar)data[0];
+        goto done;
+    }
+    value = (uchar)data[0];
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        endvalue = (value | ((uint) ((uchar)data[1]) << 8));
+        goto done;
+    }
+    value |= (uint) (((uchar)data[1]) << 8);
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        uint num2 = (uint) (((uchar)data[2]) << 0x10);
+        endvalue = (value | num2);
+        goto done;
+    }
+    value |= (uint) (((uchar)data[2]) << 0x10);
+    numberOfBits -= 8;
+    endvalue =  (value | ((uint) (((uchar)data[3]) << 0x18)));
+    goto done;
+
+    done:
+
+    float num = max - min;
+    int num2 = (((int) 1) << numberOfBits) - 1;
+    float num3 = endvalue;
+    float num4 = num3 / ((float) num2);
+    return (min + (num4 * num));
+}
+
+QByteArray rangedSingleToData(float value, float min, float max, int numberOfBits)
+{
+    QByteArray data;
+    float num = max - min;
+    float num2 = (value - min) / num;
+    int num3 = (((int) 1) << numberOfBits) - 1;
+    uint source = num3 * num2;
+
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source;
+        return data;
+    }
+    data += (unsigned char)source;
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source>>8;
+        return data;
+    }
+    data += (unsigned char)source>>8;
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source>>16;
+        return data;
+    }
+    data += (unsigned char)source>>16;
+    data += (unsigned char)source>>24;
+
+    return data;
+}
+
+uint8_t dataToUint8(QByteArray data)
+{
+    return (uint8_t)data[0];
+}
+
+uint16_t dataToUint16(QByteArray data)
+{
+    return ((uint16_t)(uint8_t)data[0])
+            +(((uint16_t)(uint8_t)data[1])<<8);
+}
+
+uint32_t dataToUint32(QByteArray data)
+{
+    return ((uint32_t)(uint8_t)data[0])
+            +(((uint32_t)(uint8_t)data[1])<<8)
+            +(((uint32_t)(uint8_t)data[2])<<16)
+            +(((uint32_t)(uint8_t)data[3])<<24);
+}
+
+uint64_t dataToUint64(QByteArray data)
+{
+    return ((uint64_t)(uint8_t)data[0])
+            +(((uint64_t)(uint8_t)data[1])<<8)
+            +(((uint64_t)(uint8_t)data[2])<<16)
+            +(((uint64_t)(uint8_t)data[3])<<24)
+            +(((uint64_t)(uint8_t)data[4])<<32)
+            +(((uint64_t)(uint8_t)data[5])<<40)
+            +(((uint64_t)(uint8_t)data[6])<<48)
+            +(((uint64_t)(uint8_t)data[7])<<56);
+}
+
+unsigned getVUint32Size(QByteArray data)
+{
+    unsigned lensize=0;
+    {
+        unsigned char num3;
+        do {
+            num3 = data[lensize];
+            lensize++;
+        } while ((num3 & 0x80) != 0);
+    }
+    return lensize;
+}
+
+QByteArray uint8ToData(uint8_t num)
+{
+    QByteArray data(1,0);
+    data[0] = (uint8_t)num;
+    return data;
+}
+
+QByteArray uint16ToData(uint16_t num)
+{
+    QByteArray data(2,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    return data;
+}
+
+QByteArray uint32ToData(uint32_t num)
+{
+    QByteArray data(4,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    data[2] = (uint8_t)((num>>16) & 0xFF);
+    data[3] = (uint8_t)((num>>24) & 0xFF);
+    return data;
+}
+
+QByteArray uint64ToData(uint64_t num)
+{
+    QByteArray data(8,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    data[2] = (uint8_t)((num>>16) & 0xFF);
+    data[3] = (uint8_t)((num>>24) & 0xFF);
+    data[4] = (uint8_t)((num>>32) & 0xFF);
+    data[5] = (uint8_t)((num>>40) & 0xFF);
+    data[6] = (uint8_t)((num>>48) & 0xFF);
+    data[7] = (uint8_t)((num>>56) & 0xFF);
+    return data;
+}

src/misc/serialize.h

@@ -0,0 +1,45 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#ifndef SERIALIZE_H
+#define SERIALIZE_H
+
+#include <cstdint>
+#include <QByteArray>
+#include <QString>
+
+/// Most of those functions are unsafe unless otherwise specified
+/// Do not use them on untrusted data (e.g. check a signature first)
+
+QByteArray doubleToData(double num);
+QByteArray floatToData(float num);
+float dataToFloat(QByteArray data);
+QByteArray stringToData(QString str);
+QString dataToString(QByteArray data);
+float dataToRangedSingle(float min, float max, int numberOfBits, QByteArray data);
+QByteArray rangedSingleToData(float value, float min, float max, int numberOfBits);
+uint8_t dataToUint8(QByteArray data);
+uint16_t dataToUint16(QByteArray data);
+uint32_t dataToUint32(QByteArray data);
+uint64_t dataToUint64(QByteArray data);
+unsigned getVUint32Size(QByteArray data);
+QByteArray uint8ToData(uint8_t num);
+QByteArray uint16ToData(uint16_t num);
+QByteArray uint32ToData(uint32_t num);
+QByteArray uint64ToData(uint64_t num);
+
+#endif // SERIALIZE_H

src/misc/settings.cpp

@@ -119,6 +119,7 @@ void Settings::load()
         proxyPort = s.value("proxyPort", 0).toInt();
         currentProfile = s.value("currentProfile", "").toString();
     	autoAwayTime = s.value("autoAwayTime", 10).toInt();
+        checkUpdates = s.value("checkUpdates", false).toBool();
     s.endGroup();
 
     s.beginGroup("Widgets");
@@ -255,6 +256,7 @@ void Settings::save(QString path)
         s.setValue("proxyPort", proxyPort);
         s.setValue("currentProfile", currentProfile);
         s.setValue("autoAwayTime", autoAwayTime);
+        s.setValue("checkUpdates", checkUpdates);
     s.endGroup();
 
     s.beginGroup("Widgets");
@@ -727,6 +729,16 @@ void Settings::setWindowState(const QByteArray &value)
     windowState = value;
 }
 
+bool Settings::getCheckUpdates() const
+{
+    return checkUpdates;
+}
+
+void Settings::setCheckUpdates(bool newValue)
+{
+    checkUpdates = newValue;
+}
+
 QByteArray Settings::getSplitterState() const
 {
     return splitterState;

src/misc/settings.h

@@ -99,6 +99,9 @@ public:
     int getAutoAwayTime() const;
     void setAutoAwayTime(int newValue);
 
+    bool getCheckUpdates() const;
+    void setCheckUpdates(bool newValue);
+
     QPixmap getSavedAvatar(const QString& ownerId);
     void saveAvatar(QPixmap& pic, const QString& ownerId);
 
@@ -219,6 +222,7 @@ private:
     bool closeToTray;
     bool minimizeToTray;
     bool useEmoticons;
+    bool checkUpdates;
 
     bool forceTCP;
 

src/widget/form/settings/generalform.cpp

@@ -27,6 +27,8 @@
 #include <QFileDialog>
 #include <QStandardPaths>
 
+#include "src/autoupdate.h"
+
 static QStringList locales = {"bg", "de", "en", "fr", "it", "mannol", "pirate", "pl", "ru", "fi", "sv", "uk"};
 static QStringList langs = {"Български", "Deustch", "English", "Français", "Italiano", "mannol", "Pirate", "Polski", "Русский", "Suomi", "Svenska", "Українська"};
 
@@ -40,6 +42,9 @@ GeneralForm::GeneralForm(SettingsWidget *myParent) :
     bodyUI = new Ui::GeneralSettings;
     bodyUI->setupUi(this);
 
+    bodyUI->checkUpdates->setVisible(AUTOUPDATE_ENABLED);
+    bodyUI->checkUpdates->setChecked(Settings::getInstance().getCheckUpdates());
+    
     bodyUI->cbEnableIPv6->setChecked(Settings::getInstance().getEnableIPv6());
     for (int i = 0; i < langs.size(); i++)
         bodyUI->transComboBox->insertItem(i, langs[i]);
@@ -93,6 +98,7 @@ GeneralForm::GeneralForm(SettingsWidget *myParent) :
     onUseProxyUpdated();
 
     //general
+    connect(bodyUI->checkUpdates, &QCheckBox::stateChanged, this, &GeneralForm::onCheckUpdateChanged);
     connect(bodyUI->transComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(onTranslationUpdated()));
     connect(bodyUI->cbMakeToxPortable, &QCheckBox::stateChanged, this, &GeneralForm::onMakeToxPortableUpdated);
     connect(bodyUI->startInTray, &QCheckBox::stateChanged, this, &GeneralForm::onSetAutostartInTray);
@@ -280,3 +286,8 @@ void GeneralForm::reloadSmiles()
     bodyUI->smile4->setToolTip(smiles[3]);
     bodyUI->smile5->setToolTip(smiles[4]);
 }
+
+void GeneralForm::onCheckUpdateChanged()
+{
+    Settings::getInstance().setCheckUpdates(bodyUI->checkUpdates->isChecked());
+}

src/widget/form/settings/generalform.h

@@ -51,6 +51,7 @@ private slots:
     void onReconnectClicked();
     void onAutoAcceptFileChange();
     void onAutoSaveDirChange();
+    void onCheckUpdateChanged();
 
 private:
     Ui::GeneralSettings *bodyUI;

src/widget/form/settings/generalsettings.ui

@@ -40,7 +40,7 @@
         <x>0</x>
         <y>0</y>
         <width>511</width>
-        <height>739</height>
+        <height>720</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_4" stretch="0,0,1">
@@ -121,6 +121,13 @@
             </property>
            </widget>
           </item>
+          <item>
+           <widget class="QCheckBox" name="checkUpdates">
+            <property name="text">
+             <string>Check for updates on startup (unstable)</string>
+            </property>
+           </widget>
+          </item>
           <item>
            <layout class="QHBoxLayout" name="horizontalLayout_2">
             <item alignment="Qt::AlignLeft">

src/widget/widget.cpp

@@ -31,6 +31,9 @@
 #include "src/video/camera.h"
 #include "form/chatform.h"
 #include "maskablepixmapwidget.h"
+#include "src/historykeeper.h"
+#include "form/inputpassworddialog.h"
+#include "src/autoupdate.h"
 #include <QMessageBox>
 #include <QDebug>
 #include <QFile>
@@ -45,9 +48,7 @@
 #include <QTimer>
 #include <QStyleFactory>
 #include <QTranslator>
-#include "src/historykeeper.h"
 #include <tox/tox.h>
-#include "form/inputpassworddialog.h"
 
 Widget *Widget::instance{nullptr};
 
@@ -244,6 +245,11 @@ void Widget::init()
     coreThread->start();
 
     addFriendForm->show(*ui);
+
+#if (AUTOUPDATE_ENABLED)
+    if (Settings::getInstance().getCheckUpdates())
+        AutoUpdater::checkUpdatesAsyncInteractive();
+#endif
 }
 
 void Widget::setTranslation()
@@ -1095,3 +1101,20 @@ void Widget::setEnabledThreadsafe(bool enabled)
         return setEnabled(enabled);
     }
 }
+
+bool Widget::askMsgboxQuestion(const QString& title, const QString& msg)
+{
+    // We can only display widgets from the GUI thread
+    if (QThread::currentThread() != qApp->thread())
+    {
+        bool ret;
+        QMetaObject::invokeMethod(this, "askMsgboxQuestion", Qt::BlockingQueuedConnection,
+                                  Q_RETURN_ARG(bool, ret),
+                                  Q_ARG(const QString&, title), Q_ARG(const QString&, msg));
+        return ret;
+    }
+    else
+    {
+        return QMessageBox::question(this, title, msg) == QMessageBox::StandardButton::Yes;
+    }
+}

src/widget/widget.h

@@ -67,6 +67,7 @@ public:
     Q_INVOKABLE QMessageBox::StandardButton showWarningMsgBox(const QString& title, const QString& msg,
                                               QMessageBox::StandardButtons buttonss = QMessageBox::Ok);
     Q_INVOKABLE void setEnabledThreadsafe(bool enabled);
+    Q_INVOKABLE bool askMsgboxQuestion(const QString& title, const QString& msg);
     ~Widget();
 
     virtual void closeEvent(QCloseEvent *event);

tools/update-server/qtox-updater-genflist/main.cpp

@@ -0,0 +1,97 @@
+#include <iostream>
+#include <QFile>
+#include <QByteArray>
+#include <QDir>
+#include <QCryptographicHash>
+#include <sodium.h>
+#include "serialize.h"
+
+using namespace std;
+
+/// Pass the target folder as first argument, no spaces allowed. We'll call that dir $TARGET
+/// Update the content of $TARGET/files/ before calling this tool
+/// We'll generate $TARGET/flist and exit
+/// We need qtox-updater-skey in our working directory to sign the flist
+///
+/// The generated flist is very simple and just installs everything in the working directory ...
+
+int main(int argc, char* argv[])
+{
+    cout << "qTox updater flist generator" << endl;
+
+    /// First some basic error handling, prepare our handles, ...
+    if (argc != 2)
+    {
+        cout << "ERROR: qtox-updater-genflist takes the target path in argument" << endl;
+        return 1;
+    }
+
+    QFile skeyFile("qtox-updater-skey");
+    if (!skeyFile.open(QIODevice::ReadOnly))
+    {
+        cout << "ERROR: qtox-updater-genflist can't open the secret (private) key file" << endl;
+        return 1;
+    }
+    QByteArray skeyData = skeyFile.readAll();
+    skeyData = QByteArray::fromHex(skeyData);
+    skeyFile.close();
+
+    QString target(argv[1]);
+
+    QFile flistFile(target+"/flist");
+    if (!flistFile.open(QIODevice::Truncate | QIODevice::WriteOnly))
+    {
+        cout << "ERROR: qtox-updater-genflist can't open the target flist" << endl;
+        return 1;
+    }
+
+    QDir fdir(target+"/files/");
+    if (!fdir.isReadable())
+    {
+        cout << "ERROR: qtox-updater-genflist can't open the target files directory" << endl;
+        return 1;
+    }
+
+    QStringList filesListStr = fdir.entryList(QDir::Files);
+
+    /// Serialize the flist data
+    QByteArray flistData;
+    for (QString fileStr : filesListStr)
+    {
+        cout << "Adding "<<fileStr.toStdString()<<"..."<<endl;
+
+        QFile file(target+"/files/"+fileStr);
+        if (!file.open(QIODevice::ReadOnly))
+        {
+            cout << "ERROR: qtox-updater-genflist couldn't open a target file to sign it" << endl;
+            return 1;
+        }
+
+        QByteArray fileData = file.readAll();
+
+        unsigned char sig[crypto_sign_BYTES];
+        crypto_sign_detached(sig, nullptr, (unsigned char*)fileData.data(), fileData.size(), (unsigned char*)skeyData.data());
+
+        flistData += QByteArray::fromRawData((char*)sig, crypto_sign_BYTES);
+        flistData += stringToData(QCryptographicHash::hash(fileStr.toUtf8(), QCryptographicHash::Sha3_224).toHex());
+        flistData += stringToData("./"+fileStr); ///< Always install in the working directory for now
+        flistData += uint64ToData(fileData.size());
+
+        file.close();
+    }
+
+    cout << "Signing and writing the flist..."<<endl;
+
+    /// Sign our flist
+    unsigned char sig[crypto_sign_BYTES];
+    crypto_sign_detached(sig, nullptr, (unsigned char*)flistData.data(), flistData.size(), (unsigned char*)skeyData.data());
+
+    /// Write the flist
+    flistFile.write("1");
+    flistFile.write((char*)sig, crypto_sign_BYTES);
+    flistFile.write(flistData);
+
+    flistFile.close();
+    return 0;
+}
+

tools/update-server/qtox-updater-genflist/qtox-updater-genflist.pro

@@ -0,0 +1,10 @@
+TEMPLATE = app
+CONFIG += console c++11
+QT += core
+LIBS += -lsodium
+
+SOURCES += main.cpp \
+    serialize.cpp
+
+HEADERS += \
+    serialize.h

tools/update-server/qtox-updater-genflist/serialize.cpp

@@ -0,0 +1,254 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "serialize.h"
+
+QByteArray doubleToData(double num)
+{
+    union
+    {
+        char tab[8];
+        double n;
+    } castUnion;
+    //char n[8];
+    //*((double*) n) = num;
+
+    castUnion.n=num;
+    return QByteArray(castUnion.tab,8);
+}
+
+QByteArray floatToData(float num)
+{
+    union
+    {
+        char tab[4];
+        float n;
+    } castUnion;
+
+    castUnion.n=num;
+    return QByteArray(castUnion.tab,4);
+}
+
+float dataToFloat(QByteArray data)
+{
+    union
+    {
+        char tab[4];
+        float n;
+    } castUnion;
+
+    castUnion.tab[0]=data.data()[0];
+    castUnion.tab[1]=data.data()[1];
+    castUnion.tab[2]=data.data()[2];
+    castUnion.tab[3]=data.data()[3];
+    return castUnion.n;
+}
+
+// Converts a string into PNet string data
+QByteArray stringToData(QString str)
+{
+    QByteArray data(4,0);
+    // Write the size in a Uint of variable lenght (8-32 bits)
+    int i=0;
+    uint num1 = (uint)str.toUtf8().size();
+    while (num1 >= 0x80)
+    {
+        data[i] = (unsigned char)(num1 | 0x80); i++;
+        num1 = num1 >> 7;
+    }
+    data[i]=num1;
+    data.resize(i+1);
+    data+=str.toUtf8();
+    return data;
+}
+
+QString dataToString(QByteArray data)
+{
+    // Variable UInt32
+    unsigned char num3;
+    int num = 0;
+    int num2 = 0;
+    int i=0;
+    do
+    {
+        num3 = data[i]; i++;
+        num |= (num3 & 0x7f) << num2;
+        num2 += 7;
+    } while ((num3 & 0x80) != 0);
+    unsigned int strlen = (uint) num;
+
+    if (!strlen)
+        return QString();
+
+    data = data.right(data.size()-i); // Remove the strlen
+    data.truncate(strlen);
+    return QString(data);
+}
+
+float dataToRangedSingle(float min, float max, int numberOfBits, QByteArray data)
+{
+    uint endvalue=0;
+    uint value=0;
+    if (numberOfBits <= 8)
+    {
+        endvalue = (uchar)data[0];
+        goto done;
+    }
+    value = (uchar)data[0];
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        endvalue = (value | ((uint) ((uchar)data[1]) << 8));
+        goto done;
+    }
+    value |= (uint) (((uchar)data[1]) << 8);
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        uint num2 = (uint) (((uchar)data[2]) << 0x10);
+        endvalue = (value | num2);
+        goto done;
+    }
+    value |= (uint) (((uchar)data[2]) << 0x10);
+    numberOfBits -= 8;
+    endvalue =  (value | ((uint) (((uchar)data[3]) << 0x18)));
+    goto done;
+
+    done:
+
+    float num = max - min;
+    int num2 = (((int) 1) << numberOfBits) - 1;
+    float num3 = endvalue;
+    float num4 = num3 / ((float) num2);
+    return (min + (num4 * num));
+}
+
+QByteArray rangedSingleToData(float value, float min, float max, int numberOfBits)
+{
+    QByteArray data;
+    float num = max - min;
+    float num2 = (value - min) / num;
+    int num3 = (((int) 1) << numberOfBits) - 1;
+    uint source = num3 * num2;
+
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source;
+        return data;
+    }
+    data += (unsigned char)source;
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source>>8;
+        return data;
+    }
+    data += (unsigned char)source>>8;
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source>>16;
+        return data;
+    }
+    data += (unsigned char)source>>16;
+    data += (unsigned char)source>>24;
+
+    return data;
+}
+
+uint8_t dataToUint8(QByteArray data)
+{
+    return (uint8_t)data[0];
+}
+
+uint16_t dataToUint16(QByteArray data)
+{
+    return ((uint16_t)(uint8_t)data[0])
+            +(((uint16_t)(uint8_t)data[1])<<8);
+}
+
+uint32_t dataToUint32(QByteArray data)
+{
+    return ((uint32_t)(uint8_t)data[0])
+            +(((uint32_t)(uint8_t)data[1])<<8)
+            +(((uint32_t)(uint8_t)data[2])<<16)
+            +(((uint32_t)(uint8_t)data[3])<<24);
+}
+
+uint64_t dataToUint64(QByteArray data)
+{
+    return ((uint64_t)(uint8_t)data[0])
+            +(((uint64_t)(uint8_t)data[1])<<8)
+            +(((uint64_t)(uint8_t)data[2])<<16)
+            +(((uint64_t)(uint8_t)data[3])<<24)
+            +(((uint64_t)(uint8_t)data[4])<<32)
+            +(((uint64_t)(uint8_t)data[5])<<40)
+            +(((uint64_t)(uint8_t)data[6])<<48)
+            +(((uint64_t)(uint8_t)data[7])<<56);
+}
+
+unsigned getVUint32Size(QByteArray data)
+{
+    unsigned lensize=0;
+    {
+        unsigned char num3;
+        do {
+            num3 = data[lensize];
+            lensize++;
+        } while ((num3 & 0x80) != 0);
+    }
+    return lensize;
+}
+
+QByteArray uint8ToData(uint8_t num)
+{
+    QByteArray data(1,0);
+    data[0] = (uint8_t)num;
+    return data;
+}
+
+QByteArray uint16ToData(uint16_t num)
+{
+    QByteArray data(2,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    return data;
+}
+
+QByteArray uint32ToData(uint32_t num)
+{
+    QByteArray data(4,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    data[2] = (uint8_t)((num>>16) & 0xFF);
+    data[3] = (uint8_t)((num>>24) & 0xFF);
+    return data;
+}
+
+QByteArray uint64ToData(uint64_t num)
+{
+    QByteArray data(8,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    data[2] = (uint8_t)((num>>16) & 0xFF);
+    data[3] = (uint8_t)((num>>24) & 0xFF);
+    data[4] = (uint8_t)((num>>32) & 0xFF);
+    data[5] = (uint8_t)((num>>40) & 0xFF);
+    data[6] = (uint8_t)((num>>48) & 0xFF);
+    data[7] = (uint8_t)((num>>56) & 0xFF);
+    return data;
+}

tools/update-server/qtox-updater-genflist/serialize.h

@@ -0,0 +1,45 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#ifndef SERIALIZE_H
+#define SERIALIZE_H
+
+#include <cstdint>
+#include <QByteArray>
+#include <QString>
+
+/// Most of those functions are unsafe unless otherwise specified
+/// Do not use them on untrusted data (e.g. check a signature first)
+
+QByteArray doubleToData(double num);
+QByteArray floatToData(float num);
+float dataToFloat(QByteArray data);
+QByteArray stringToData(QString str);
+QString dataToString(QByteArray data);
+float dataToRangedSingle(float min, float max, int numberOfBits, QByteArray data);
+QByteArray rangedSingleToData(float value, float min, float max, int numberOfBits);
+uint8_t dataToUint8(QByteArray data);
+uint16_t dataToUint16(QByteArray data);
+uint32_t dataToUint32(QByteArray data);
+uint64_t dataToUint64(QByteArray data);
+unsigned getVUint32Size(QByteArray data);
+QByteArray uint8ToData(uint8_t num);
+QByteArray uint16ToData(uint16_t num);
+QByteArray uint32ToData(uint32_t num);
+QByteArray uint64ToData(uint64_t num);
+
+#endif // SERIALIZE_H

tools/update-server/qtox-updater-sign/main.cpp

@@ -0,0 +1,43 @@
+#include <sodium.h>
+#include <QByteArray>
+#include <QFile>
+
+using namespace std;
+
+int main(int argc, char* argv[])
+{    
+    QFile io;
+    QByteArray msg;
+    if (argc > 1)
+    {
+        msg = QByteArray(argv[1]);
+    }
+    else
+    {
+        io.open(stdin, QIODevice::ReadOnly);
+        msg = io.readAll();
+        io.close();
+    }
+    io.open(stdout, QIODevice::WriteOnly);
+
+    QFile skeyFile("qtox-updater-skey");
+    if (!skeyFile.open(QIODevice::ReadOnly))
+    {
+        io.write("ERROR: qtox-updater-sign can't open the secret (private) key file\n");
+        io.close();
+        return 1;
+    }
+    QByteArray skeyData = skeyFile.readAll();
+    skeyData = QByteArray::fromHex(skeyData);
+    skeyFile.close();
+
+    unsigned char sig[crypto_sign_BYTES];
+    crypto_sign_detached(sig, nullptr, (unsigned char*)msg.data(), msg.size(), (unsigned char*)skeyData.data());
+
+    io.write((char*)sig, crypto_sign_BYTES);
+    io.write(msg);
+    io.close();
+
+    return 0;
+}
+

tools/update-server/qtox-updater-sign/qtox-updater-sign.pro

@@ -0,0 +1,7 @@
+TEMPLATE = app
+CONFIG += console c++11
+QT += core
+
+SOURCES += main.cpp
+
+LIBS += -lsodium

updater/main.cpp

@@ -0,0 +1,28 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "widget.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    Widget w;
+    w.show();
+
+    return a.exec();
+}

updater/res.qrc

@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>res/qtox-256x256.png</file>
+    </qresource>
+</RCC>

updater/serialize.cpp

@@ -0,0 +1,254 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "serialize.h"
+
+QByteArray doubleToData(double num)
+{
+    union
+    {
+        char tab[8];
+        double n;
+    } castUnion;
+    //char n[8];
+    //*((double*) n) = num;
+
+    castUnion.n=num;
+    return QByteArray(castUnion.tab,8);
+}
+
+QByteArray floatToData(float num)
+{
+    union
+    {
+        char tab[4];
+        float n;
+    } castUnion;
+
+    castUnion.n=num;
+    return QByteArray(castUnion.tab,4);
+}
+
+float dataToFloat(QByteArray data)
+{
+    union
+    {
+        char tab[4];
+        float n;
+    } castUnion;
+
+    castUnion.tab[0]=data.data()[0];
+    castUnion.tab[1]=data.data()[1];
+    castUnion.tab[2]=data.data()[2];
+    castUnion.tab[3]=data.data()[3];
+    return castUnion.n;
+}
+
+// Converts a string into PNet string data
+QByteArray stringToData(QString str)
+{
+    QByteArray data(4,0);
+    // Write the size in a Uint of variable lenght (8-32 bits)
+    int i=0;
+    uint num1 = (uint)str.toUtf8().size();
+    while (num1 >= 0x80)
+    {
+        data[i] = (unsigned char)(num1 | 0x80); i++;
+        num1 = num1 >> 7;
+    }
+    data[i]=num1;
+    data.resize(i+1);
+    data+=str.toUtf8();
+    return data;
+}
+
+QString dataToString(QByteArray data)
+{
+    // Variable UInt32
+    unsigned char num3;
+    int num = 0;
+    int num2 = 0;
+    int i=0;
+    do
+    {
+        num3 = data[i]; i++;
+        num |= (num3 & 0x7f) << num2;
+        num2 += 7;
+    } while ((num3 & 0x80) != 0);
+    unsigned int strlen = (uint) num;
+
+    if (!strlen)
+        return QString();
+
+    data = data.right(data.size()-i); // Remove the strlen
+    data.truncate(strlen);
+    return QString(data);
+}
+
+float dataToRangedSingle(float min, float max, int numberOfBits, QByteArray data)
+{
+    uint endvalue=0;
+    uint value=0;
+    if (numberOfBits <= 8)
+    {
+        endvalue = (uchar)data[0];
+        goto done;
+    }
+    value = (uchar)data[0];
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        endvalue = (value | ((uint) ((uchar)data[1]) << 8));
+        goto done;
+    }
+    value |= (uint) (((uchar)data[1]) << 8);
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        uint num2 = (uint) (((uchar)data[2]) << 0x10);
+        endvalue = (value | num2);
+        goto done;
+    }
+    value |= (uint) (((uchar)data[2]) << 0x10);
+    numberOfBits -= 8;
+    endvalue =  (value | ((uint) (((uchar)data[3]) << 0x18)));
+    goto done;
+
+    done:
+
+    float num = max - min;
+    int num2 = (((int) 1) << numberOfBits) - 1;
+    float num3 = endvalue;
+    float num4 = num3 / ((float) num2);
+    return (min + (num4 * num));
+}
+
+QByteArray rangedSingleToData(float value, float min, float max, int numberOfBits)
+{
+    QByteArray data;
+    float num = max - min;
+    float num2 = (value - min) / num;
+    int num3 = (((int) 1) << numberOfBits) - 1;
+    uint source = num3 * num2;
+
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source;
+        return data;
+    }
+    data += (unsigned char)source;
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source>>8;
+        return data;
+    }
+    data += (unsigned char)source>>8;
+    numberOfBits -= 8;
+    if (numberOfBits <= 8)
+    {
+        data += (unsigned char)source>>16;
+        return data;
+    }
+    data += (unsigned char)source>>16;
+    data += (unsigned char)source>>24;
+
+    return data;
+}
+
+uint8_t dataToUint8(QByteArray data)
+{
+    return (uint8_t)data[0];
+}
+
+uint16_t dataToUint16(QByteArray data)
+{
+    return ((uint16_t)(uint8_t)data[0])
+            +(((uint16_t)(uint8_t)data[1])<<8);
+}
+
+uint32_t dataToUint32(QByteArray data)
+{
+    return ((uint32_t)(uint8_t)data[0])
+            +(((uint32_t)(uint8_t)data[1])<<8)
+            +(((uint32_t)(uint8_t)data[2])<<16)
+            +(((uint32_t)(uint8_t)data[3])<<24);
+}
+
+uint64_t dataToUint64(QByteArray data)
+{
+    return ((uint64_t)(uint8_t)data[0])
+            +(((uint64_t)(uint8_t)data[1])<<8)
+            +(((uint64_t)(uint8_t)data[2])<<16)
+            +(((uint64_t)(uint8_t)data[3])<<24)
+            +(((uint64_t)(uint8_t)data[4])<<32)
+            +(((uint64_t)(uint8_t)data[5])<<40)
+            +(((uint64_t)(uint8_t)data[6])<<48)
+            +(((uint64_t)(uint8_t)data[7])<<56);
+}
+
+unsigned getVUint32Size(QByteArray data)
+{
+    unsigned lensize=0;
+    {
+        unsigned char num3;
+        do {
+            num3 = data[lensize];
+            lensize++;
+        } while ((num3 & 0x80) != 0);
+    }
+    return lensize;
+}
+
+QByteArray uint8ToData(uint8_t num)
+{
+    QByteArray data(1,0);
+    data[0] = (uint8_t)num;
+    return data;
+}
+
+QByteArray uint16ToData(uint16_t num)
+{
+    QByteArray data(2,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    return data;
+}
+
+QByteArray uint32ToData(uint32_t num)
+{
+    QByteArray data(4,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    data[2] = (uint8_t)((num>>16) & 0xFF);
+    data[3] = (uint8_t)((num>>24) & 0xFF);
+    return data;
+}
+
+QByteArray uint64ToData(uint64_t num)
+{
+    QByteArray data(8,0);
+    data[0] = (uint8_t)(num & 0xFF);
+    data[1] = (uint8_t)((num>>8) & 0xFF);
+    data[2] = (uint8_t)((num>>16) & 0xFF);
+    data[3] = (uint8_t)((num>>24) & 0xFF);
+    data[4] = (uint8_t)((num>>32) & 0xFF);
+    data[5] = (uint8_t)((num>>40) & 0xFF);
+    data[6] = (uint8_t)((num>>48) & 0xFF);
+    data[7] = (uint8_t)((num>>56) & 0xFF);
+    return data;
+}

updater/serialize.h

@@ -0,0 +1,45 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#ifndef SERIALIZE_H
+#define SERIALIZE_H
+
+#include <cstdint>
+#include <QByteArray>
+#include <QString>
+
+/// Most of those functions are unsafe unless otherwise specified
+/// Do not use them on untrusted data (e.g. check a signature first)
+
+QByteArray doubleToData(double num);
+QByteArray floatToData(float num);
+float dataToFloat(QByteArray data);
+QByteArray stringToData(QString str);
+QString dataToString(QByteArray data);
+float dataToRangedSingle(float min, float max, int numberOfBits, QByteArray data);
+QByteArray rangedSingleToData(float value, float min, float max, int numberOfBits);
+uint8_t dataToUint8(QByteArray data);
+uint16_t dataToUint16(QByteArray data);
+uint32_t dataToUint32(QByteArray data);
+uint64_t dataToUint64(QByteArray data);
+unsigned getVUint32Size(QByteArray data);
+QByteArray uint8ToData(uint8_t num);
+QByteArray uint16ToData(uint16_t num);
+QByteArray uint32ToData(uint32_t num);
+QByteArray uint64ToData(uint64_t num);
+
+#endif // SERIALIZE_H

updater/settingsDir.cpp

@@ -0,0 +1,52 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "settingsDir.h"
+#include <QFile>
+#include <QSettings>
+#include <QDir>
+#include <QStandardPaths>
+
+const QString FILENAME = "settings.ini";
+
+QString getSettingsDirPath()
+{
+    if (isToxPortableEnabled())
+        return ".";
+
+#ifdef Q_OS_WIN
+    return QDir::cleanPath(QStandardPaths::writableLocation(QStandardPaths::HomeLocation)
+                           + QDir::separator() + "AppData" + QDir::separator() + "Roaming" + QDir::separator() + "tox");
+#else
+    return QDir::cleanPath(QStandardPaths::writableLocation(QStandardPaths::ConfigLocation) + QDir::separator() + "tox");
+#endif
+}
+
+bool isToxPortableEnabled()
+{
+    QFile portableSettings(FILENAME);
+    if (portableSettings.exists())
+    {
+        QSettings ps(FILENAME, QSettings::IniFormat);
+        ps.beginGroup("General");
+        return ps.value("makeToxPortable", false).toBool();
+    }
+    else
+    {
+        return false;
+    }
+}

updater/settingsDir.h

@@ -0,0 +1,27 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#ifndef SETTINGSDIR_H
+#define SETTINGSDIR_H
+
+#include <QString>
+
+QString getSettingsDirPath();
+
+bool isToxPortableEnabled();
+
+#endif // SETTINGSDIR_H

updater/update.cpp

@@ -0,0 +1,115 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "update.h"
+#include "serialize.h"
+#include <QFile>
+#include <QDebug>
+
+unsigned char key[crypto_sign_PUBLICKEYBYTES] =
+{
+    0xa5, 0x80, 0xf3, 0xb7, 0xd0, 0x10, 0xc0, 0xf9, 0xd6, 0xcf, 0x48, 0x15, 0x99, 0x70, 0x92, 0x49,
+    0xf6, 0xe8, 0xe5, 0xe2, 0x6c, 0x73, 0x8c, 0x48, 0x25, 0xed, 0x01, 0x72, 0xf7, 0x6c, 0x17, 0x28
+};
+
+QByteArray getLocalFlist()
+{
+    QByteArray flist;
+
+    QFile flistFile("flist");
+    if (!flistFile.open(QIODevice::ReadOnly))
+    {
+        qWarning() << "getLocalFlist: Can't open local flist";
+        return flist;
+    }
+
+    flist = flistFile.readAll();
+    flistFile.close();
+
+    return flist;
+}
+
+QList<UpdateFileMeta> genUpdateDiff(QList<UpdateFileMeta> updateFlist)
+{
+    QList<UpdateFileMeta> diff;
+    QList<UpdateFileMeta> localFlist = parseFlist(getLocalFlist());
+
+    for (UpdateFileMeta file : updateFlist)
+        if (!localFlist.contains(file))
+            diff += file;
+
+    return diff;
+}
+
+QList<UpdateFileMeta> parseFlist(QByteArray flistData)
+{
+    QList<UpdateFileMeta> flist;
+
+    if (flistData.isEmpty())
+    {
+        qWarning() << "AutoUpdater::parseflist: Empty data";
+        return flist;
+    }
+
+    // Check version
+    if (flistData[0] != '1')
+    {
+        qWarning() << "AutoUpdater: parseflist: Bad version "<<(uint8_t)flistData[0];
+        return flist;
+    }
+    flistData = flistData.mid(1);
+
+    // Check signature
+    if (flistData.size() < (int)(crypto_sign_BYTES))
+    {
+        qWarning() << "AutoUpdater::parseflist: Truncated data";
+        return flist;
+    }
+    else
+    {
+        QByteArray msgData = flistData.mid(crypto_sign_BYTES);
+        unsigned char* msg = (unsigned char*)msgData.data();
+        if (crypto_sign_verify_detached((unsigned char*)flistData.data(), msg, msgData.size(), key) != 0)
+        {
+            qCritical() << "AutoUpdater: parseflist: FORGED FLIST FILE";
+            return flist;
+        }
+        flistData = flistData.mid(crypto_sign_BYTES);
+    }
+
+    // Parse. We assume no errors handling needed since the signature is valid.
+    while (!flistData.isEmpty())
+    {
+        UpdateFileMeta newFile;
+
+        memcpy(newFile.sig, flistData.data(), crypto_sign_BYTES);
+        flistData = flistData.mid(crypto_sign_BYTES);
+
+        newFile.id = dataToString(flistData);
+        flistData = flistData.mid(newFile.id.size() + getVUint32Size(flistData));
+
+        newFile.installpath = dataToString(flistData);
+        flistData = flistData.mid(newFile.installpath.size() + getVUint32Size(flistData));
+
+        newFile.size = dataToUint64(flistData);
+        flistData = flistData.mid(8);
+
+        flist += newFile;
+    }
+
+    return flist;
+}

updater/update.h

@@ -0,0 +1,55 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#ifndef UPDATE_H
+#define UPDATE_H
+
+#include <QByteArray>
+#include <QString>
+#include <sodium.h>
+
+struct UpdateFileMeta
+{
+    unsigned char sig[crypto_sign_BYTES]; ///< Signature of the file (ed25519)
+    QString id; ///< Unique id of the file
+    QString installpath; ///< Local path including the file name. May be relative to qtox-updater or absolute
+    uint64_t size; ///< Size in bytes of the file
+
+    bool operator==(const UpdateFileMeta& other)
+    {
+        return (size == other.size
+                && id == other.id && installpath == other.installpath
+                && memcmp(sig, other.sig, crypto_sign_BYTES) == 0);
+    }
+};
+
+struct UpdateFile
+{
+    UpdateFileMeta metadata;
+    QByteArray data;
+};
+
+/// Gets the local flist. Returns an empty array on error
+QByteArray getLocalFlist();
+/// Parses and validates a flist file. Returns an empty list on error
+QList<UpdateFileMeta> parseFlist(QByteArray flistData);
+/// Generates a list of files we need to update
+QList<UpdateFileMeta> genUpdateDiff(QList<UpdateFileMeta> updateFlist);
+
+extern unsigned char key[crypto_sign_PUBLICKEYBYTES];
+
+#endif // UPDATE_H

updater/updater.pro

@@ -0,0 +1,36 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2014-11-09T21:09:08
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = qtox-updater
+TEMPLATE = app
+
+CONFIG += c++11
+
+SOURCES += main.cpp\
+        widget.cpp \
+    settingsDir.cpp \
+    update.cpp \
+    serialize.cpp
+
+HEADERS  += widget.h \
+    settingsDir.h \
+    update.h \
+    serialize.h
+
+FORMS    += widget.ui
+
+RESOURCES += \
+    res.qrc
+
+INCLUDEPATH += libs/include
+
+RC_FILE = windows/updater.rc
+
+LIBS += -L$$PWD/libs/lib/ -lsodium

updater/widget.cpp

@@ -0,0 +1,156 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#include "widget.h"
+#include "ui_widget.h"
+
+#include <QDir>
+#include <QFile>
+#include <QProcess>
+#include <QMessageBox>
+#include <QMetaObject>
+
+#include "settingsDir.h"
+#include "update.h"
+
+#ifdef Q_OS_WIN
+const bool supported = true;
+const QString QTOX_PATH = "qtox.exe";
+#else
+const bool supported = false;
+const QString QTOX_PATH;
+#endif
+
+Widget::Widget(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::Widget)
+{
+    ui->setupUi(this);
+
+    // Updates only for supported platforms
+    if (!supported)
+    {
+        fatalError(tr("The qTox updater is not supported on this platform."));
+    }
+
+    QMetaObject::invokeMethod(this, "update", Qt::QueuedConnection);
+}
+
+Widget::~Widget()
+{
+    delete ui;
+}
+
+void Widget::setProgress(int value)
+{
+    ui->progress->setValue(value);
+    qApp->processEvents();
+}
+
+void Widget::fatalError(QString message)
+{
+    QMessageBox::critical(this,tr("Error"), message+'\n'+tr("qTox will restart now."));
+    deleteUpdate();
+    startQToxAndExit();
+}
+
+void Widget::deleteUpdate()
+{
+    QDir updateDir(getSettingsDirPath()+"/update/");
+    updateDir.removeRecursively();
+}
+
+void Widget::startQToxAndExit()
+{
+    QProcess::startDetached(QTOX_PATH);
+    exit(0);
+}
+
+void Widget::update()
+{
+    /// 1. Find and parse the update (0-5%)
+    // Check that the dir exists
+    QString updateDirStr = getSettingsDirPath()+"/update/";
+    QDir updateDir(updateDirStr);
+    if (!updateDir.exists())
+        fatalError(tr("No update found."));
+
+    // Check that we have a flist and that every file on the diff exists
+    QFile updateFlistFile(updateDirStr+"flist");
+    if (!updateFlistFile.open(QIODevice::ReadOnly))
+        fatalError(tr("The update is incomplete."));
+    QByteArray updateFlistData = updateFlistFile.readAll();
+    updateFlistFile.close();
+
+    setProgress(1);
+
+    QList<UpdateFileMeta> updateFlist = parseFlist(updateFlistData);
+    setProgress(2);
+    QList<UpdateFileMeta> diff = genUpdateDiff(updateFlist);
+    setProgress(4);
+    for (UpdateFileMeta fileMeta : diff)
+        if (!QFile::exists(updateDirStr+fileMeta.installpath))
+            fatalError(tr("The update is incomplete."));
+    setProgress(5);
+
+    /// 2. Check the update (5-50%)
+    float checkProgressStep = 45/diff.size();
+    float checkProgress = 5;
+    for (UpdateFileMeta fileMeta : diff)
+    {
+        UpdateFile file;
+        file.metadata = fileMeta;
+
+        QFile fileFile(updateDirStr+fileMeta.installpath);
+        if (!fileFile.open(QIODevice::ReadOnly))
+            fatalError(tr("Update files are unreadable."));
+        file.data = fileFile.readAll();
+        fileFile.close();
+
+        if (file.data.size() != (int)fileMeta.size)
+            fatalError(tr("Update files are corrupted."));
+
+        if (crypto_sign_verify_detached(file.metadata.sig, (unsigned char*)file.data.data(),
+                                        file.data.size(), key) != 0)
+            fatalError(tr("Update files are corrupted."));
+
+        checkProgress += checkProgressStep;
+        setProgress(checkProgress);
+    }
+    setProgress(50);
+
+    /// 3. Install the update (50-95%)
+    float installProgressStep = 45/diff.size();
+    float installProgress = 50;
+    for (UpdateFileMeta fileMeta : diff)
+    {
+         QFile fileFile(updateDirStr+fileMeta.installpath);
+         if (!fileFile.copy(fileMeta.installpath))
+             fatalError(tr("Unable to copy the update's files."));
+
+         installProgress += installProgressStep;
+         setProgress(installProgress);
+    }
+    setProgress(95);
+
+    /// 4. Delete the update (95-100%)
+    deleteUpdate();
+    setProgress(100);
+
+    /// 5. Start qTox and exit
+    startQToxAndExit();
+}

updater/widget.h

@@ -0,0 +1,51 @@
+/*
+    Copyright (C) 2014 by Project Tox <https://tox.im>
+
+    This file is part of qTox, a Qt-based graphical interface for Tox.
+
+    This program is libre 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.
+    This program 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 COPYING file for more details.
+*/
+
+
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+
+namespace Ui {
+class Widget;
+}
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit Widget(QWidget *parent = 0);
+    ~Widget();
+
+    // Utilities
+    void setProgress(int value);
+
+    // Noreturn
+    void fatalError(QString message); ///< Calls deleteUpdate and startQToxAndExit
+    void deleteUpdate();
+    void startQToxAndExit();
+
+public slots:
+    // Finds and applies the update
+    void update();
+
+private:
+    Ui::Widget *ui;
+};
+
+#endif // WIDGET_H

updater/widget.ui

@@ -0,0 +1,139 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Widget</class>
+ <widget class="QWidget" name="Widget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>401</width>
+    <height>224</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>qTox Updater</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="res.qrc">
+    <normaloff>:/res/qtox-256x256.png</normaloff>:/res/qtox-256x256.png</iconset>
+  </property>
+  <widget class="QLabel" name="label">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>13</y>
+     <width>191</width>
+     <height>191</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string/>
+   </property>
+   <property name="pixmap">
+    <pixmap resource="res.qrc">:/res/qtox-256x256.png</pixmap>
+   </property>
+   <property name="scaledContents">
+    <bool>true</bool>
+   </property>
+  </widget>
+  <widget class="QProgressBar" name="progress">
+   <property name="geometry">
+    <rect>
+     <x>206</x>
+     <y>95</y>
+     <width>171</width>
+     <height>20</height>
+    </rect>
+   </property>
+   <property name="minimum">
+    <number>0</number>
+   </property>
+   <property name="value">
+    <number>0</number>
+   </property>
+   <property name="alignment">
+    <set>Qt::AlignCenter</set>
+   </property>
+   <property name="invertedAppearance">
+    <bool>false</bool>
+   </property>
+  </widget>
+  <widget class="QLabel" name="label_2">
+   <property name="geometry">
+    <rect>
+     <x>205</x>
+     <y>115</y>
+     <width>171</width>
+     <height>20</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Updating qTox ...</string>
+   </property>
+   <property name="alignment">
+    <set>Qt::AlignCenter</set>
+   </property>
+  </widget>
+  <widget class="QLabel" name="label_3">
+   <property name="geometry">
+    <rect>
+     <x>201</x>
+     <y>170</y>
+     <width>181</width>
+     <height>20</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&lt;a href=&quot;https://tox.im&quot;&gt;https://tox.im&lt;/a&gt;</string>
+   </property>
+   <property name="alignment">
+    <set>Qt::AlignCenter</set>
+   </property>
+   <property name="openExternalLinks">
+    <bool>true</bool>
+   </property>
+  </widget>
+  <widget class="QLabel" name="label_4">
+   <property name="geometry">
+    <rect>
+     <x>200</x>
+     <y>183</y>
+     <width>181</width>
+     <height>20</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>&lt;a href=&quot;https://github.com/tux3/qtox&quot;&gt;https://github.com/tux3/qtox&lt;/a&gt;</string>
+   </property>
+   <property name="alignment">
+    <set>Qt::AlignCenter</set>
+   </property>
+  </widget>
+  <widget class="QLabel" name="label_5">
+   <property name="geometry">
+    <rect>
+     <x>195</x>
+     <y>32</y>
+     <width>191</width>
+     <height>31</height>
+    </rect>
+   </property>
+   <property name="font">
+    <font>
+     <pointsize>14</pointsize>
+    </font>
+   </property>
+   <property name="text">
+    <string>qTox Update</string>
+   </property>
+   <property name="alignment">
+    <set>Qt::AlignCenter</set>
+   </property>
+  </widget>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources>
+  <include location="res.qrc"/>
+ </resources>
+ <connections/>
+</ui>

updater/windows/updater.exe.manifest

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+   <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+      <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel
+          level="requireAdministrator"
+          uiAccess="false"/>
+      </requestedPrivileges>
+    </security>
+   </trustInfo>
+</assembly>

updater/windows/updater.rc

@@ -0,0 +1,2 @@
+ID_ICON    ICON    DISCARDABLE    "updater.ico"
+1 24 "updater.exe.manifest"