Merge pull request #5082 from murillodigital/auto-updater

Checkpoint towards auto updater

interface/CMakeLists.txt

@@ -140,7 +140,7 @@ target_link_libraries(${TARGET_NAME} ${BULLET_LIBRARIES})
 # link required hifi libraries
 link_hifi_libraries(shared octree environment gpu model render fbx networking entities avatars 
                     audio audio-client animation script-engine physics 
-                    render-utils entities-renderer ui)
+                    render-utils entities-renderer ui auto-updater)
 
 add_dependency_external_projects(sdl2)
 

interface/resources/qml/UpdateDialog.qml

@@ -0,0 +1,172 @@
+import Hifi 1.0
+import QtQuick 2.3
+import QtQuick.Controls.Styles 1.3
+import QtGraphicalEffects 1.0
+import "controls"
+import "styles"
+
+DialogContainer {
+    HifiConstants { id: hifi }
+    id: root
+    objectName: "UpdateDialog"
+    implicitWidth: updateDialog.width
+    implicitHeight: updateDialog.height
+    x: parent ? parent.width / 2 - width / 2 : 0
+    y: parent ? parent.height / 2 - height / 2 : 0
+    
+    UpdateDialog {
+        id: updateDialog
+        
+        implicitWidth: backgroundRectangle.width
+        implicitHeight: backgroundRectangle.height
+        
+        readonly property int inputWidth: 500
+        readonly property int inputHeight: 60
+        readonly property int borderWidth: 30
+        readonly property int closeMargin: 16
+        readonly property int inputSpacing: 16
+        readonly property int buttonWidth: 150
+        readonly property int buttonHeight: 50
+        readonly property int buttonRadius: 15
+        
+        signal triggerBuildDownload
+        signal closeUpdateDialog
+        
+        Column {
+            id: mainContent
+            width: updateDialog.inputWidth
+            spacing: updateDialog.inputSpacing
+            anchors {
+                horizontalCenter: parent.horizontalCenter
+                verticalCenter: parent.verticalCenter
+            }
+            
+            Rectangle {
+                id: backgroundRectangle
+                color: "#2c86b1"
+                opacity: 0.85
+                radius: updateDialog.closeMargin * 2
+                
+                width: updateDialog.inputWidth + updateDialog.borderWidth * 2
+                height: updateDialog.inputHeight * 6 + updateDialog.closeMargin * 2
+                
+                Rectangle {
+                    id: dialogTitle
+                    width: updateDialog.inputWidth
+                    height: updateDialog.inputHeight
+                    radius: height / 2
+                    color: "#ebebeb"
+                    
+                    anchors {
+                        top: parent.top
+                        topMargin: updateDialog.inputSpacing
+                        horizontalCenter: parent.horizontalCenter
+                    }
+                    
+                    Text {
+                        id: updateAvailableText
+                        text: "Update Available"
+                        anchors {
+                            verticalCenter: parent.verticalCenter
+                            left: parent.left
+                            leftMargin: updateDialog.inputSpacing
+                        }
+                    }
+                    
+                    Text {
+                        text: updateDialog.updateAvailableDetails
+                        font.pixelSize: 14
+                        color: hifi.colors.text
+                        anchors {
+                            verticalCenter: parent.verticalCenter
+                            left: updateAvailableText.right
+                            leftMargin: 13
+                        }
+                    }
+                }
+                
+                Flickable {
+                    id: scrollArea
+                    anchors {
+                        top: dialogTitle.bottom
+                    }
+                    contentWidth: updateDialog.inputWidth
+                    contentHeight: backgroundRectangle.height - (dialogTitle.height * 2.5)
+                    width: updateDialog.inputWidth
+                    height: backgroundRectangle.height - (dialogTitle.height * 2.5)
+                    flickableDirection: Flickable.VerticalFlick
+                    clip: true
+                    
+                    TextEdit {
+                        id: releaseNotes
+                        wrapMode: TextEdit.Wrap
+                        width: parent.width
+                        readOnly: true
+                        text: updateDialog.releaseNotes
+                        font.pixelSize: 14
+                        color: hifi.colors.text
+                        anchors {
+                            left: parent.left
+                            leftMargin: updateDialog.borderWidth
+                        }
+                    }
+                }
+                
+                Rectangle {
+                    id: downloadButton
+                    width: updateDialog.buttonWidth
+                    height: updateDialog.buttonHeight
+                    radius: updateDialog.buttonRadius
+                    color: "green"
+                    anchors {
+                        top: scrollArea.bottom
+                        topMargin: 10
+                        right: backgroundRectangle.right
+                        rightMargin: 15
+                    }
+                    Text {
+                        text: "Upgrade"
+                        anchors {
+                            verticalCenter: parent.verticalCenter
+                            horizontalCenter: parent.horizontalCenter
+                        }
+                    }
+                    MouseArea {
+                        id: downloadButtonAction
+                        anchors.fill: parent
+                        onClicked: updateDialog.triggerUpgrade()
+                        cursorShape: "PointingHandCursor"
+                    }
+                }
+                
+                Rectangle {
+                    id: cancelButton
+                    width: updateDialog.buttonWidth
+                    height: updateDialog.buttonHeight
+                    radius: updateDialog.buttonRadius
+                    color: "red"
+                    anchors {
+                        top: scrollArea.bottom
+                        topMargin: 10
+                        right: downloadButton.left
+                        rightMargin: 15
+                    }
+                    
+                    Text {
+                        text: "Cancel"
+                        anchors {
+                            verticalCenter: parent.verticalCenter
+                            horizontalCenter: parent.horizontalCenter
+                        }
+                    }
+                    MouseArea {
+                        id: cancelButtonAction
+                        anchors.fill: parent
+                        onClicked: updateDialog.closeDialog()
+                        cursorShape: "PointingHandCursor"
+                    }
+                }
+            }
+        }
+    }
+}

interface/src/Application.cpp

@@ -60,6 +60,7 @@
 #include <CursorManager.h>
 #include <AmbientOcclusionEffect.h>
 #include <AudioInjector.h>
+#include <AutoUpdater.h>
 #include <DeferredLightingEffect.h>
 #include <DependencyManager.h>
 #include <EntityScriptingInterface.h>
@@ -147,6 +148,7 @@
 #include "ui/StandAloneJSConsole.h"
 #include "ui/Stats.h"
 #include "ui/AddressBarDialog.h"
+#include "ui/UpdateDialog.h"
 
 
 // ON WIndows PC, NVidia Optimus laptop, we want to enable NVIDIA GPU
@@ -296,6 +298,7 @@ bool setupEssentials(int& argc, char** argv) {
     auto discoverabilityManager = DependencyManager::set<DiscoverabilityManager>();
     auto sceneScriptingInterface = DependencyManager::set<SceneScriptingInterface>();
     auto offscreenUi = DependencyManager::set<OffscreenUi>();
+    auto autoUpdater = DependencyManager::set<AutoUpdater>();
     auto pathUtils = DependencyManager::set<PathUtils>();
     auto actionFactory = DependencyManager::set<InterfaceActionFactory>();
 
@@ -563,8 +566,6 @@ Application::Application(int& argc, char** argv, QElapsedTimer &startup_time) :
     // allow you to move an entity around in your hand
     _entityEditSender.setPacketsPerSecond(3000); // super high!!
 
-    checkVersion();
-
     _overlays.init(); // do this before scripts load
 
     _runningScriptsWidget->setRunningScripts(getRunningScripts());
@@ -636,9 +637,12 @@ Application::Application(int& argc, char** argv, QElapsedTimer &startup_time) :
     ddeTracker->init();
     connect(ddeTracker.data(), &FaceTracker::muteToggled, this, &Application::faceTrackerMuteToggled);
 #endif
+    
+    auto applicationUpdater = DependencyManager::get<AutoUpdater>();
+    connect(applicationUpdater.data(), &AutoUpdater::newVersionIsAvailable, dialogsManager.data(), &DialogsManager::showUpdateDialog);
+    applicationUpdater->checkForUpdate();
 }
 
-
 void Application::aboutToQuit() {
     emit beforeAboutToQuit();
 
@@ -828,6 +832,7 @@ void Application::initializeUi() {
     LoginDialog::registerType();
     MessageDialog::registerType();
     VrMenu::registerType();
+    UpdateDialog::registerType();
 
     auto offscreenUi = DependencyManager::get<OffscreenUi>();
     offscreenUi->create(_glWidget->context()->contextHandle());
@@ -4523,72 +4528,6 @@ void Application::toggleLogDialog() {
     }
 }
 
-void Application::checkVersion() {
-    QNetworkRequest latestVersionRequest((QUrl(CHECK_VERSION_URL)));
-    latestVersionRequest.setHeader(QNetworkRequest::UserAgentHeader, HIGH_FIDELITY_USER_AGENT);
-    latestVersionRequest.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache);
-    QNetworkReply* reply = NetworkAccessManager::getInstance().get(latestVersionRequest);
-    connect(reply, SIGNAL(finished()), SLOT(parseVersionXml()));
-}
-
-void Application::parseVersionXml() {
-
-    #ifdef Q_OS_WIN32
-    QString operatingSystem("win");
-    #endif
-
-    #ifdef Q_OS_MAC
-    QString operatingSystem("mac");
-    #endif
-
-    #ifdef Q_OS_LINUX
-    QString operatingSystem("ubuntu");
-    #endif
-
-    QString latestVersion;
-    QUrl downloadUrl;
-    QString releaseNotes("Unavailable");
-    QNetworkReply* sender = qobject_cast<QNetworkReply*>(QObject::sender());
-
-    QXmlStreamReader xml(sender);
-
-    while (!xml.atEnd() && !xml.hasError()) {
-        if (xml.tokenType() == QXmlStreamReader::StartElement && xml.name() == operatingSystem) {
-            while (!(xml.tokenType() == QXmlStreamReader::EndElement && xml.name() == operatingSystem)) {
-                if (xml.tokenType() == QXmlStreamReader::StartElement && xml.name().toString() == "version") {
-                    xml.readNext();
-                    latestVersion = xml.text().toString();
-                }
-                if (xml.tokenType() == QXmlStreamReader::StartElement && xml.name().toString() == "url") {
-                    xml.readNext();
-                    downloadUrl = QUrl(xml.text().toString());
-                }
-                xml.readNext();
-            }
-        }
-        xml.readNext();
-    }
-
-    if (!shouldSkipVersion(latestVersion) && applicationVersion() != latestVersion) {
-        new UpdateDialog(_glWidget, releaseNotes, latestVersion, downloadUrl);
-    }
-    sender->deleteLater();
-}
-
-bool Application::shouldSkipVersion(QString latestVersion) {
-    QFile skipFile(SKIP_FILENAME);
-    skipFile.open(QIODevice::ReadWrite);
-    QString skipVersion(skipFile.readAll());
-    return (skipVersion == latestVersion || applicationVersion() == "dev");
-}
-
-void Application::skipVersion(QString latestVersion) {
-    QFile skipFile(SKIP_FILENAME);
-    skipFile.open(QIODevice::WriteOnly | QIODevice::Truncate);
-    skipFile.seek(0);
-    skipFile.write(latestVersion.toStdString().c_str());
-}
-
 void Application::takeSnapshot() {
     QMediaPlayer* player = new QMediaPlayer();
     QFileInfo inf = QFileInfo(PathUtils::resourcesPath() + "sounds/snap.wav");

interface/src/Application.h

@@ -66,7 +66,6 @@
 #include "ui/SnapshotShareDialog.h"
 #include "ui/LodToolsDialog.h"
 #include "ui/LogDialog.h"
-#include "ui/UpdateDialog.h"
 #include "ui/overlays/Overlays.h"
 #include "ui/ApplicationOverlay.h"
 #include "ui/RunningScriptsWidget.h"
@@ -312,8 +311,6 @@ public:
 
     NodeToJurisdictionMap& getEntityServerJurisdictions() { return _entityServerJurisdictions; }
 
-    void skipVersion(QString latestVersion);
-
     QStringList getRunningScripts() { return _scriptEnginesHash.keys(); }
     ScriptEngine* getScriptEngine(QString scriptHash) { return _scriptEnginesHash.contains(scriptHash) ? _scriptEnginesHash[scriptHash] : NULL; }
     
@@ -460,8 +457,6 @@ private slots:
     void restoreMirrorView();
     void shrinkMirrorView();
 
-    void parseVersionXml();
-
     void manageRunningScriptsWidgetVisibility(bool shown);
     
     void runTests();
@@ -627,9 +622,6 @@ private:
 
     FileLogger* _logger;
 
-    void checkVersion();
-    void displayUpdateDialog();
-    bool shouldSkipVersion(QString latestVersion);
     void takeSnapshot();
 
     TouchEvent _lastTouchEvent;

interface/src/ui/DialogsManager.cpp

@@ -31,6 +31,7 @@
 #include "OctreeStatsDialog.h"
 #include "PreferencesDialog.h"
 #include "ScriptEditorWindow.h"
+#include "UpdateDialog.h"
 
 
 void DialogsManager::toggleAddressBar() {
@@ -50,6 +51,10 @@ void DialogsManager::showLoginDialog() {
     LoginDialog::show();
 }
 
+void DialogsManager::showUpdateDialog() {
+    UpdateDialog::show();
+}
+
 void DialogsManager::octreeStatsDetails() {
     if (!_octreeStatsDialog) {
         _octreeStatsDialog = new OctreeStatsDialog(qApp->getWindow(), qApp->getOcteeSceneStats());

interface/src/ui/DialogsManager.h

@@ -35,6 +35,7 @@ class ScriptEditorWindow;
 class QMessageBox;
 class AvatarAppearanceDialog;
 class DomainConnectionDialog;
+class UpdateDialog;
 
 class DialogsManager : public QObject, public Dependency {
     Q_OBJECT
@@ -64,6 +65,9 @@ public slots:
     void showIRCLink();
     void changeAvatarAppearance();
     void showDomainConnectionDialog();
+    
+    // Application Update
+    void showUpdateDialog();
 
 private slots:
     void toggleToolWindow();
@@ -101,6 +105,7 @@ private:
     QPointer<ScriptEditorWindow> _scriptEditor;
     QPointer<AvatarAppearanceDialog> _avatarAppearanceDialog;
     QPointer<DomainConnectionDialog> _domainConnectionDialog;
+    QPointer<UpdateDialog> _updateDialog;
 };
 
 #endif // hifi_DialogsManager_h

interface/src/ui/UpdateDialog.cpp

@@ -2,54 +2,50 @@
 //  UpdateDialog.cpp
 //  interface/src/ui
 //
-//  Copyright 2014 High Fidelity, Inc.
+//  Created by Leonardo Murillo on 6/3/15.
+//  Copyright 2015 High Fidelity, Inc.
 //
 //  Distributed under the Apache License, Version 2.0.
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
-#include <QDesktopServices>
-
-#include "ui_updateDialog.h"
-
-#include "Application.h"
 #include "UpdateDialog.h"
 
+#include <AutoUpdater.h>
 
-UpdateDialog::UpdateDialog(QWidget *parent, const QString& releaseNotes, const QString& latestVersion, const QUrl& downloadURL) :
+#include "DependencyManager.h"
-    QDialog(parent),
+
-    _latestVersion(latestVersion),
+HIFI_QML_DEF(UpdateDialog)
-    _downloadUrl(downloadURL)
+
+UpdateDialog::UpdateDialog(QQuickItem* parent) :
+    OffscreenQmlDialog(parent)
 {
-    Ui::Dialog dialogUI;
+    auto applicationUpdater = DependencyManager::get<AutoUpdater>();
-    dialogUI.setupUi(this);
+    int currentVersion = QCoreApplication::applicationVersion().toInt();
-    
+    int latestVersion = applicationUpdater.data()->getBuildData().lastKey();
-    QString updateRequired = QString("You are currently running build %1, the latest build released is %2."
+    int versionsBehind = latestVersion - currentVersion;
-                                     "\n\nPlease download and install the most recent release to access the latest features and bug fixes.")
+    _updateAvailableDetails = "v" + QString::number(latestVersion) + " released on " + applicationUpdater.data()->getBuildData()[latestVersion]["releaseTime"];
-                                      .arg(Application::getInstance()->applicationVersion(), latestVersion);
+    _updateAvailableDetails += "\nYou are " + QString::number(versionsBehind) + " versions behind";
-    
+    _releaseNotes = applicationUpdater.data()->getBuildData()[latestVersion]["releaseNotes"];
-    setAttribute(Qt::WA_DeleteOnClose);
-    
-    QPushButton* downloadButton = findChild<QPushButton*>("downloadButton");
-    QPushButton* skipButton = findChild<QPushButton*>("skipButton");
-    QPushButton* closeButton = findChild<QPushButton*>("closeButton");
-    QLabel* updateContent = findChild<QLabel*>("updateContent");
-    
-    updateContent->setText(updateRequired);
-    
-    connect(downloadButton, SIGNAL(released()), this, SLOT(handleDownload()));
-    connect(skipButton, SIGNAL(released()), this, SLOT(handleSkip()));
-    connect(closeButton, SIGNAL(released()), this, SLOT(close()));
-    
-    QMetaObject::invokeMethod(this, "show", Qt::QueuedConnection);
 }
 
-void UpdateDialog::handleDownload() {
+const QString& UpdateDialog::updateAvailableDetails() const {
-    QDesktopServices::openUrl(_downloadUrl);
+    return _updateAvailableDetails;
-    Application::getInstance()->quit();
 }
 
-void UpdateDialog::handleSkip() {
+const QString& UpdateDialog::releaseNotes() const {
-    Application::getInstance()->skipVersion(_latestVersion);
+    return _releaseNotes;
-    this->close();
 }
+
+void UpdateDialog::closeDialog() {
+    hide();
+}
+
+void UpdateDialog::hide() {
+    ((QQuickItem*)parent())->setEnabled(false);
+}
+
+void UpdateDialog::triggerUpgrade() {
+    auto applicationUpdater = DependencyManager::get<AutoUpdater>();
+    applicationUpdater.data()->performAutoUpdate(applicationUpdater.data()->getBuildData().lastKey());
+}

interface/src/ui/UpdateDialog.h

@@ -2,30 +2,42 @@
 //  UpdateDialog.h
 //  interface/src/ui
 //
-//  Copyright 2014 High Fidelity, Inc.
+//  Created by Leonardo Murillo on 6/3/15.
+//  Copyright 2015 High Fidelity, Inc.
 //
 //  Distributed under the Apache License, Version 2.0.
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
+#pragma once
 #ifndef hifi_UpdateDialog_h
 #define hifi_UpdateDialog_h
 
-#include <QWidget>
+#include <QtCore/QCoreApplication>
 
-class UpdateDialog : public QDialog {
+#include <OffscreenQmlDialog.h>
+
+class UpdateDialog : public OffscreenQmlDialog {
     Q_OBJECT
+    HIFI_QML_DECL
+    
+    Q_PROPERTY(QString updateAvailableDetails READ updateAvailableDetails)
+    Q_PROPERTY(QString releaseNotes READ releaseNotes)
     
 public:
-    UpdateDialog(QWidget* parent, const QString& releaseNotes, const QString& latestVersion, const QUrl& downloadURL);
+    UpdateDialog(QQuickItem* parent = nullptr);
+    const QString& updateAvailableDetails() const;
+    const QString& releaseNotes() const;
     
 private:
-    QString _latestVersion;
+    QString _updateAvailableDetails;
-    QUrl _downloadUrl;
+    QString _releaseNotes;
-    
+
-private slots:
+protected:
-    void handleDownload();
+    void hide();
-    void handleSkip();
+    Q_INVOKABLE void triggerUpgrade();
+    Q_INVOKABLE void closeDialog();
+
 };
 
 #endif // hifi_UpdateDialog_h

interface/ui/updateDialog.ui

@@ -1,132 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>Dialog</class>
- <widget class="QDialog" name="Dialog">
-  <property name="windowModality">
-   <enum>Qt::NonModal</enum>
-  </property>
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>750</width>
-    <height>213</height>
-   </rect>
-  </property>
-  <property name="cursor">
-   <cursorShape>PointingHandCursor</cursorShape>
-  </property>
-  <property name="windowTitle">
-   <string>Update Required</string>
-  </property>
-  <property name="styleSheet">
-   <string notr="true">background-color: rgb(255, 255, 255);</string>
-  </property>
-  <widget class="QLabel" name="updateContent">
-   <property name="geometry">
-    <rect>
-     <x>50</x>
-     <y>20</y>
-     <width>641</width>
-     <height>111</height>
-    </rect>
-   </property>
-   <property name="font">
-    <font>
-     <family>Arial</family>
-     <pointsize>-1</pointsize>
-    </font>
-   </property>
-   <property name="styleSheet">
-    <string notr="true">font-family: Arial;
-font-size: 20px;</string>
-   </property>
-   <property name="text">
-    <string/>
-   </property>
-   <property name="wordWrap">
-    <bool>true</bool>
-   </property>
-  </widget>
-  <widget class="QWidget" name="layoutWidget">
-   <property name="geometry">
-    <rect>
-     <x>360</x>
-     <y>160</y>
-     <width>374</width>
-     <height>42</height>
-    </rect>
-   </property>
-   <layout class="QHBoxLayout" name="horizontalLayout">
-    <item>
-     <widget class="QPushButton" name="downloadButton">
-      <property name="cursor">
-       <cursorShape>PointingHandCursor</cursorShape>
-      </property>
-      <property name="styleSheet">
-       <string notr="true">    background-color: #333333;
-border-width: 0;
-border-radius: 9px;
-border-radius: 9px;
-font-family: Arial;
-font-size: 18px;
-font-weight: 100;
-color: #b7b7b7;
-width: 120px;
-height: 40px;</string>
-      </property>
-      <property name="text">
-       <string>Download</string>
-      </property>
-     </widget>
-    </item>
-    <item>
-     <widget class="QPushButton" name="skipButton">
-      <property name="cursor">
-       <cursorShape>PointingHandCursor</cursorShape>
-      </property>
-      <property name="styleSheet">
-       <string notr="true">    background-color: #333333;
-border-width: 0;
-border-radius: 9px;
-border-radius: 9px;
-font-family: Arial;
-font-size: 18px;
-font-weight: 100;
-color: #b7b7b7;
-width: 120px;
-height: 40px;</string>
-      </property>
-      <property name="text">
-       <string>Skip Version</string>
-      </property>
-     </widget>
-    </item>
-    <item>
-     <widget class="QPushButton" name="closeButton">
-      <property name="cursor">
-       <cursorShape>PointingHandCursor</cursorShape>
-      </property>
-      <property name="styleSheet">
-       <string notr="true">    background-color: #333333;
-border-width: 0;
-border-radius: 9px;
-border-radius: 9px;
-font-family: Arial;
-font-size: 18px;
-font-weight: 100;
-color: #b7b7b7;
-width: 120px;
-height: 40px;</string>
-      </property>
-      <property name="text">
-       <string>Close</string>
-      </property>
-     </widget>
-    </item>
-   </layout>
-  </widget>
- </widget>
- <resources/>
- <connections/>
-</ui>

libraries/auto-updater/CMakeLists.txt

@@ -0,0 +1,3 @@
+set(TARGET_NAME auto-updater)
+setup_hifi_library(Network)
+link_hifi_libraries(shared networking)

libraries/auto-updater/src/AutoUpdater.cpp

@@ -0,0 +1,140 @@
+//
+//  AutoUpdater.cpp
+//  libraries/auto-update/src
+//
+//  Created by Leonardo Murillo on 6/1/2015.
+//  Copyright 2015 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#include "AutoUpdater.h"
+
+#include <NetworkAccessManager.h>
+#include <SharedUtil.h>
+
+AutoUpdater::AutoUpdater() {
+#if defined Q_OS_WIN32
+    _operatingSystem = "windows";
+#elif defined Q_OS_MAC
+    _operatingSystem = "mac";
+#elif defined Q_OS_LINUX
+    _operatingSystem = "ubuntu";
+#endif
+    
+    connect(this, SIGNAL(latestVersionDataParsed()), this, SLOT(checkVersionAndNotify()));
+}
+
+void AutoUpdater::checkForUpdate() {
+    this->getLatestVersionData();
+}
+
+void AutoUpdater::getLatestVersionData() {
+    QNetworkAccessManager& networkAccessManager = NetworkAccessManager::getInstance();
+    QNetworkRequest latestVersionRequest(BUILDS_XML_URL);
+    latestVersionRequest.setHeader(QNetworkRequest::UserAgentHeader, HIGH_FIDELITY_USER_AGENT);
+    QNetworkReply* reply = networkAccessManager.get(latestVersionRequest);
+    connect(reply, &QNetworkReply::finished, this, &AutoUpdater::parseLatestVersionData);
+}
+
+void AutoUpdater::parseLatestVersionData() {
+    QNetworkReply* sender = qobject_cast<QNetworkReply*>(QObject::sender());
+    
+    QXmlStreamReader xml(sender);
+    
+    int version;
+    QString downloadUrl;
+    QString releaseTime;
+    QString releaseNotes;
+    QString commitSha;
+    QString pullRequestNumber;
+    
+    while (!xml.atEnd() && !xml.hasError()) {
+        if (xml.name().toString() == "project" &&
+            xml.attributes().hasAttribute("name") &&
+            xml.attributes().value("name").toString() == "interface") {
+            xml.readNext();
+            
+            while (!xml.atEnd() && !xml.hasError() && xml.name().toString() != "project") {
+                if (xml.name().toString() == "platform" &&
+                    xml.attributes().hasAttribute("name") &&
+                    xml.attributes().value("name").toString() == _operatingSystem) {
+                    xml.readNext();
+                    while (!xml.atEnd() && !xml.hasError() &&
+                           xml.name().toString() != "platform") {
+                        
+                        if (xml.name().toString() == "build" && xml.tokenType() != QXmlStreamReader::EndElement) {
+                            xml.readNext();
+                            version = xml.readElementText().toInt();
+                            xml.readNext();
+                            downloadUrl = xml.readElementText();
+                            xml.readNext();
+                            releaseTime = xml.readElementText();
+                            xml.readNext();
+                            if (xml.name().toString() == "notes" && xml.tokenType() != QXmlStreamReader::EndElement) {
+                                xml.readNext();
+                                while (!xml.atEnd() && !xml.hasError() && xml.name().toString() != "notes") {
+                                    if (xml.name().toString() == "note" && xml.tokenType() != QXmlStreamReader::EndElement) {
+                                        releaseNotes = releaseNotes + "\n" + xml.readElementText();
+                                    }
+                                    xml.readNext();
+                                }
+                            }
+                            xml.readNext();
+                            commitSha = xml.readElementText();
+                            xml.readNext();
+                            pullRequestNumber = xml.readElementText();
+                            appendBuildData(version, downloadUrl, releaseTime, releaseNotes, pullRequestNumber);
+                            releaseNotes = "";
+                        }
+                        
+                        xml.readNext();
+                    }
+                }
+                xml.readNext();
+            }
+            
+        } else {
+            xml.readNext();
+        }
+    }
+    sender->deleteLater();
+    emit latestVersionDataParsed();
+}
+
+void AutoUpdater::checkVersionAndNotify() {
+    int latestVersionAvailable = _builds.lastKey();
+    if (QCoreApplication::applicationVersion() != "dev" &&
+        QCoreApplication::applicationVersion().toInt() < latestVersionAvailable) {
+        emit newVersionIsAvailable();
+    }
+}
+
+void AutoUpdater::performAutoUpdate(int version) {
+    // NOTE: This is not yet auto updating - however this is a checkpoint towards that end
+    // Next PR will handle the automatic download, upgrading and application restart
+    const QMap<QString, QString>& chosenVersion = _builds.value(version);
+    const QUrl& downloadUrl = chosenVersion.value("downloadUrl");
+    QDesktopServices::openUrl(downloadUrl);
+    QCoreApplication::quit();
+}
+
+void AutoUpdater::downloadUpdateVersion(int version) {
+    emit newVersionIsDownloaded();
+}
+
+void AutoUpdater::appendBuildData(int versionNumber,
+                                 const QString& downloadURL,
+                                 const QString& releaseTime,
+                                 const QString& releaseNotes,
+                                 const QString& pullRequestNumber) {
+    
+    QMap<QString, QString> thisBuildDetails;
+    thisBuildDetails.insert("downloadUrl", downloadURL);
+    thisBuildDetails.insert("releaseTime", releaseTime);
+    thisBuildDetails.insert("releaseNotes", releaseNotes);
+    thisBuildDetails.insert("pullRequestNumber", pullRequestNumber);
+    _builds.insert(versionNumber, thisBuildDetails);
+    
+}

libraries/auto-updater/src/AutoUpdater.h

@@ -0,0 +1,68 @@
+//
+//  AutoUpdater.h
+//  libraries/auto-update/src
+//
+//  Created by Leonardo Murillo on 6/1/2015.
+//  Copyright 2015 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#ifndef hifi_AutoUpdater_h
+#define hifi_AutoUpdater_h
+
+
+#include <QtCore/QSettings>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDebug>
+#include <QtCore/QMap>
+#include <QtCore/QObject>
+#include <QtCore/QString>
+#include <QtCore/QUrl>
+#include <QtCore/QXmlStreamAttributes>
+#include <QtCore/QXmlStreamReader>
+#include <QtGui/QDesktopServices>
+#include <QtNetwork/QNetworkAccessManager>
+#include <QtNetwork/QNetworkConfiguration>
+#include <QtNetwork/QNetworkReply>
+#include <QtNetwork/QNetworkRequest>
+
+#include <DependencyManager.h>
+
+const QUrl BUILDS_XML_URL("https://highfidelity.com/builds.xml");
+
+class AutoUpdater : public QObject, public Dependency {
+    Q_OBJECT
+    SINGLETON_DEPENDENCY
+    
+public:
+    AutoUpdater();
+    
+    void checkForUpdate();
+    const QMap<int, QMap<QString, QString>>& getBuildData() { return _builds; }
+    void performAutoUpdate(int version);
+
+signals:
+    void latestVersionDataParsed();
+    void newVersionIsAvailable();
+    void newVersionIsDownloaded();
+
+private:
+    QMap<int, QMap<QString, QString>> _builds;
+    QString _operatingSystem;
+    
+    void getLatestVersionData();
+    void downloadUpdateVersion(int version);
+    void appendBuildData(int versionNumber,
+                         const QString& downloadURL,
+                         const QString& releaseTime,
+                         const QString& releaseNotes,
+                         const QString& pullRequestNumber);
+
+private slots:
+    void parseLatestVersionData();
+    void checkVersionAndNotify();
+};
+
+#endif // _hifi_AutoUpdater_h