Programming for the Web: from Soup to Nuts: Implementing a Complete GIS Web Page Using HTML5, CSS, Javascript, Node.Js, Mongodb, and Open Layers
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Build It with Nitrogen the Fast-Off-The-Block Erlang Web Framework
Build it with Nitrogen The fast-off-the-block Erlang web framework Lloyd R. Prentice & Jesse Gumm dedicated to: Laurie, love of my life— Lloyd Jackie, my best half — Jesse and to: Rusty Klophaus and other giants of Open Source— LRP & JG Contents I. Frying Pan to Fire5 1. You want me to build what?7 2. Enter the lion’s den9 2.1. The big picture........................ 10 2.2. Install Nitrogen........................ 11 2.3. Lay of the land........................ 13 II. Projects 19 3. nitroBoard I 21 3.1. Plan of attack......................... 21 3.2. Create a new project..................... 23 3.3. Prototype welcome page................... 27 3.4. Anatomy of a page...................... 30 3.5. Anatomy of a route...................... 33 3.6. Anatomy of a template.................... 34 3.7. Elements............................ 35 3.8. Actions............................. 38 3.9. Triggers and Targets..................... 39 3.10. Enough theory........................ 40 i 3.11. Visitors............................ 44 3.12. Styling............................. 64 3.13. Debugging........................... 66 3.14. What you’ve learned..................... 66 3.15. Think and do......................... 68 4. nitroBoard II 69 4.1. Plan of attack......................... 69 4.2. Associates........................... 70 4.3. I am in/I am out....................... 78 4.4. Styling............................. 81 4.5. What you’ve learned..................... 82 4.6. Think and do......................... 82 5. A Simple Login System 83 5.1. Getting Started........................ 83 5.2. Dependencies......................... 84 5.2.1. Rebar Dependency: erlpass ............. 84 5.3. The index page........................ 85 5.4. Creating an account..................... 87 5.4.1. db_login module................... 89 5.5. The login form........................ 91 5.5.1. -
Interaction Between Web Browsers and Script Engines
IT 12 058 Examensarbete 45 hp November 2012 Interaction between web browsers and script engines Xiaoyu Zhuang Institutionen för informationsteknologi Department of Information Technology Abstract Interaction between web browser and the script engine Xiaoyu Zhuang Teknisk- naturvetenskaplig fakultet UTH-enheten Web browser plays an important part of internet experience and JavaScript is the most popular programming language as a client side script to build an active and Besöksadress: advance end user experience. The script engine which executes JavaScript needs to Ångströmlaboratoriet Lägerhyddsvägen 1 interact with web browser to get access to its DOM elements and other host objects. Hus 4, Plan 0 Browser from host side needs to initialize the script engine and dispatch script source code to the engine side. Postadress: This thesis studies the interaction between the script engine and its host browser. Box 536 751 21 Uppsala The shell where the engine address to make calls towards outside is called hosting layer. This report mainly discussed what operations could appear in this layer and Telefon: designed testing cases to validate if the browser is robust and reliable regarding 018 – 471 30 03 hosting operations. Telefax: 018 – 471 30 00 Hemsida: http://www.teknat.uu.se/student Handledare: Elena Boris Ämnesgranskare: Justin Pearson Examinator: Lisa Kaati IT 12 058 Tryckt av: Reprocentralen ITC Contents 1. Introduction................................................................................................................................ -
Defensive Javascript Building and Verifying Secure Web Components
Defensive JavaScript Building and Verifying Secure Web Components Karthikeyan Bhargavan1, Antoine Delignat-Lavaud1, and Sergio Maffeis2 1 INRIA Paris-Rocquencourt, France 2 Imperial College London, UK Abstract. Defensive JavaScript (DJS) is a typed subset of JavaScript that guarantees that the functional behavior of a program cannot be tampered with even if it is loaded by and executed within a malicious environment under the control of the attacker. As such, DJS is ideal for writing JavaScript security components, such as bookmarklets, single sign-on widgets, and cryptographic libraries, that may be loaded within untrusted web pages alongside unknown scripts from arbitrary third par- ties. We present a tutorial of the DJS language along with motivations for its design. We show how to program security components in DJS, how to verify their defensiveness using the DJS typechecker, and how to analyze their security properties automatically using ProVerif. 1 Introduction Since the advent of asynchronous web applications, popularly called AJAX or Web 2.0, JavaScript has become the predominant programming language for client-side web applications. JavaScript programs are widely deployed as scripts in web pages, but also as small storable snippets called bookmarklets, as down- loadable web apps,1 and as plugins or extensions to popular browsers.2 Main- stream browsers compete with each other in providing convenient APIs and fast JavaScript execution engines. More recently, Javascript is being used to program smartphone and desktop applications3, and also cloud-based server ap- plications,4 so that now programmers can use the same idioms and libraries to write and deploy a variety of client- and server-side programs. -
Sams Teach Yourself Javascript in 24 Hours
Phil Ballard Michael Moncur SamsTeachYourself JavaScript™ Fifth Edition in Hours24 800 East 96th Street, Indianapolis, Indiana, 46240 USA Sams Teach Yourself JavaScript™ in 24 Hours, Fifth Edition Editor-in-Chief Mark Taub Copyright © 2013 by Pearson Education, Inc. All rights reserved. No part of this book shall be reproduced, stored in a retrieval system, Acquisitions Editor or transmitted by any means, electronic, mechanical, photocopying, recording, or other- Mark Taber wise, without written permission from the publisher. No patent liability is assumed with respect to the use of the information contained herein. Although every precaution has Managing Editor been taken in the preparation of this book, the publisher and author assume no responsi- Kristy Hart bility for errors or omissions. Nor is any liability assumed for damages resulting from the use of the information contained herein. Project Editor ISBN-13: 978-0-672-33608-9 Anne Goebel ISBN-10: 0-672-33608-1 Copy Editor Library of Congress Cataloging-in-Publication Data is on file. Geneil Breeze Printed in the United States of America First Printing October 2012 Indexer Erika Millen Trademarks All terms mentioned in this book that are known to be trademarks or service marks have Proofreader been appropriately capitalized. Sams Publishing cannot attest to the accuracy of this Chrissy White, information. Use of a term in this book should not be regarded as affecting the validity of Language Logistics any trademark or service mark. Publishing Coordinator Warning and Disclaimer Vanessa Evans Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. -
Typescript-Handbook.Pdf
This copy of the TypeScript handbook was created on Monday, September 27, 2021 against commit 519269 with TypeScript 4.4. Table of Contents The TypeScript Handbook Your first step to learn TypeScript The Basics Step one in learning TypeScript: The basic types. Everyday Types The language primitives. Understand how TypeScript uses JavaScript knowledge Narrowing to reduce the amount of type syntax in your projects. More on Functions Learn about how Functions work in TypeScript. How TypeScript describes the shapes of JavaScript Object Types objects. An overview of the ways in which you can create more Creating Types from Types types from existing types. Generics Types which take parameters Keyof Type Operator Using the keyof operator in type contexts. Typeof Type Operator Using the typeof operator in type contexts. Indexed Access Types Using Type['a'] syntax to access a subset of a type. Create types which act like if statements in the type Conditional Types system. Mapped Types Generating types by re-using an existing type. Generating mapping types which change properties via Template Literal Types template literal strings. Classes How classes work in TypeScript How JavaScript handles communicating across file Modules boundaries. The TypeScript Handbook About this Handbook Over 20 years after its introduction to the programming community, JavaScript is now one of the most widespread cross-platform languages ever created. Starting as a small scripting language for adding trivial interactivity to webpages, JavaScript has grown to be a language of choice for both frontend and backend applications of every size. While the size, scope, and complexity of programs written in JavaScript has grown exponentially, the ability of the JavaScript language to express the relationships between different units of code has not. -
Making Story from System Logs with Elastic Stack
SANOG36 18 - 21 January, 2021 Making story from system logs with stack [email protected] https://imtiazrahman.com https://github.com/imtiazrahman Logs syslog Audit SNMP NETFLOW http METRIC DNS ids What is Elastic Stack ? Store, Analyze Ingest User Interface a full-text based, distributed NoSQL database. Written in Java, built on Apache Lucene Commonly used for log analytics, full-text search, security intelligence, business analytics, and operational intelligence use cases. Use REST API (GET, PUT, POST, and DELETE ) for storing and searching data Data is stored as documents (rows in relational database) Data is separated into fields (columns in relational database) Relational Database Elasticsearch Database Index Table Type Row/Record Document Column Name Field Terminology Cluster: A cluster consists of one or more nodes which share the same cluster name. Node: A node is a running instance of elasticsearch which belongs to a cluster. Terminology Index: Collection of documents Shard: An index is split into elements known as shards that are distributed across multiple nodes. There are two types of shard, Primary and replica. By default elasticsearch creates 1 primary shard and 1 replica shard for each index. Terminology Shard 1 Replica 1 Replica 2 Shard 2 Node 1 Node 2 cluster Terminology Documents { • Indices hold documents in "_index": "netflow-2020.10.08", "_type": "_doc", serialized JSON objects "_id": "ZwkiB3UBULotwSOX3Bdb", "_version": 1, • 1 document = 1 log entry "_score": null, "_source": { • Contains "field : value" pairs -
Learning Javascript Design Patterns
Learning JavaScript Design Patterns Addy Osmani Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo Learning JavaScript Design Patterns by Addy Osmani Copyright © 2012 Addy Osmani. All rights reserved. Revision History for the : 2012-05-01 Early release revision 1 See http://oreilly.com/catalog/errata.csp?isbn=9781449331818 for release details. ISBN: 978-1-449-33181-8 1335906805 Table of Contents Preface ..................................................................... ix 1. Introduction ........................................................... 1 2. What is a Pattern? ...................................................... 3 We already use patterns everyday 4 3. 'Pattern'-ity Testing, Proto-Patterns & The Rule Of Three ...................... 7 4. The Structure Of A Design Pattern ......................................... 9 5. Writing Design Patterns ................................................. 11 6. Anti-Patterns ......................................................... 13 7. Categories Of Design Pattern ............................................ 15 Creational Design Patterns 15 Structural Design Patterns 16 Behavioral Design Patterns 16 8. Design Pattern Categorization ........................................... 17 A brief note on classes 17 9. JavaScript Design Patterns .............................................. 21 The Creational Pattern 22 The Constructor Pattern 23 Basic Constructors 23 Constructors With Prototypes 24 The Singleton Pattern 24 The Module Pattern 27 iii Modules 27 Object Literals 27 The Module Pattern -
Javascript & AJAX
JavaScript & AJAX JavaScript had to “look like Java” only less so—be Java's dumb kid brother or boy-hostage sidekick. Plus, I had to be done in ten days or something worse than JavaScript would have happened. JavaScript: the Big Picture(ELLS §11.1) © 2012 Armando Fox & David Patterson Licensed under Creative Commons Attribution- Image: Wikimedia. Used under CC-SA license. NonCommercial-ShareAlike 3.0 Unported License The Moving Parts • 1995: Netscape includes LiveScript JavaScript as browser scripting language • Originally, for simple client-side code such as animations and form input validation • Document Object Model (DOM) lets JavaScript inspect & modify document elements • 1997: standardized as ECMAScript • 1998: Microsoft adds XmlHttpRequest to IE5 • 2005: Google Maps, AJAX takes off JavaScript’s privileged position • Because it’s embedded in browser, JavaScript code can: 1. be triggered by user-initiated events (mouse down, mouse hover, keypress, …) 2. make HTTP requests to server without triggering page reload 3. be triggered by network events (e.g. server responds to HTTP request) 4. examine & modify (causing redisplay) current document DOM & JavaScript: Document = tree of objects • DOM is a language-independent, hierarchical representation of HTML or XML document • Browser parses HTML or XML => DOM • JavaScript API (JSAPI) makes DOM data structures accessible from JS code • Inspect DOM element values/attributes • Change values/attributes → redisplay • Implemented incompatibly across browsers …but jQuery framework will help us -
Zope Documentation Release 5.3
Zope Documentation Release 5.3 The Zope developer community Jul 31, 2021 Contents 1 What’s new in Zope 3 1.1 What’s new in Zope 5..........................................4 1.2 What’s new in Zope 4..........................................4 2 Installing Zope 11 2.1 Prerequisites............................................... 11 2.2 Installing Zope with zc.buildout .................................. 12 2.3 Installing Zope with pip ........................................ 13 2.4 Building the documentation with Sphinx ............................... 14 3 Configuring and Running Zope 15 3.1 Creating a Zope instance......................................... 16 3.2 Filesystem Permissions......................................... 17 3.3 Configuring Zope............................................. 17 3.4 Running Zope.............................................. 18 3.5 Running Zope (plone.recipe.zope2instance install)........................... 20 3.6 Logging In To Zope........................................... 21 3.7 Special access user accounts....................................... 22 3.8 Troubleshooting............................................. 22 3.9 Using alternative WSGI server software................................. 22 3.10 Debugging Zope applications under WSGI............................... 26 3.11 Zope configuration reference....................................... 27 4 Migrating between Zope versions 37 4.1 From Zope 2 to Zope 4 or 5....................................... 37 4.2 Migration from Zope 4 to Zope 5.0.................................. -
Ch08-Dom.Pdf
Web Programming Step by Step Chapter 8 The Document Object Model (DOM) Except where otherwise noted, the contents of this presentation are Copyright 2009 Marty Stepp and Jessica Miller. 8.1: Global DOM Objects 8.1: Global DOM Objects 8.2: DOM Element Objects 8.3: The DOM Tree The six global DOM objects Every Javascript program can refer to the following global objects: name description document current HTML page and its content history list of pages the user has visited location URL of the current HTML page navigator info about the web browser you are using screen info about the screen area occupied by the browser window the browser window The window object the entire browser window; the top-level object in DOM hierarchy technically, all global code and variables become part of the window object properties: document , history , location , name methods: alert , confirm , prompt (popup boxes) setInterval , setTimeout clearInterval , clearTimeout (timers) open , close (popping up new browser windows) blur , focus , moveBy , moveTo , print , resizeBy , resizeTo , scrollBy , scrollTo The document object the current web page and the elements inside it properties: anchors , body , cookie , domain , forms , images , links , referrer , title , URL methods: getElementById getElementsByName getElementsByTagName close , open , write , writeln complete list The location object the URL of the current web page properties: host , hostname , href , pathname , port , protocol , search methods: assign , reload , replace complete list The navigator object information about the web browser application properties: appName , appVersion , browserLanguage , cookieEnabled , platform , userAgent complete list Some web programmers examine the navigator object to see what browser is being used, and write browser-specific scripts and hacks: if (navigator.appName === "Microsoft Internet Explorer") { .. -
ELK: a Log Files Management Framework
ELK: a log files management framework Giovanni Bechis <[email protected]> LinuxCon Europe 2016 About Me I sys admin and developer @SNB I OpenBSD developer I Open Source developer in several other projects searching through log files, the old way $ man 1 pflogsumm $ grep [email protected] /var/log/maillog | awk '{print $1 "-" $2 "-" $3;}' $ grep -e 'from=.*@gmail\.com' /var/log/maillog | grep "550" \ | awk {'print $1 "-" $2 "-" $3 " " $7 " " $10 " " $11 " " $13;}' $ vi logparser.sh $ git clone https://github.com/random/parser_that_should_work $ man 1 perltoc $ man 1 python searching through log files, the old way $ cssh -a 'mylogparser.py' host1 host2 host3 host4 | tee -a /tmp/parsedlogs.txt $ man syslogd(8) searching through log files, the new way ELK open source components I Beats: collect, parse and ship I Logstash: collect, enrich and transport data I Elasticsearch: search and analyze data in real time I Kibana: explore and visualize your data ELK closed source components I Watcher: alerting for Elasticsearch I Shield: security for Elasticsearch I Marvel: monitor Elasticsearch I Graph: analyze relationships Elasticsearch I open source search engine based on lucene library I nosql database (document oriented) I queries are based on http/json I APIs for lot of common languages, (or you can write your own framework, is just plain http and json) Elasticsearch: security I not available in open source version, you need Shield I Elasticsearch should not be exposed on the wild, use firewalling to protect your instances I manage security on your -
Learn Javascript
Learn JavaScript Steve Suehring Copyright © 2012 by Steve Suehring All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without the written permission of the publisher. ISBN: 978-0-7356-6674-0 1 2 3 4 5 6 7 8 9 LSI 7 6 5 4 3 2 Printed and bound in the United States of America. Microsoft Press books are available through booksellers and distributors worldwide. If you need support related to this book, email Microsoft Press Book Support at [email protected]. Please tell us what you think of this book at http://www.microsoft.com/learning/booksurvey. Microsoft and the trademarks listed at http://www.microsoft.com/about/legal/en/us/IntellectualProperty/ Trademarks/EN-US.aspx are trademarks of the Microsoft group of companies. All other marks are property of their respective owners. The example companies, organizations, products, domain names, email addresses, logos, people, places, and events depicted herein are fictitious. No association with any real company, organization, product, domain name, email address, logo, person, place, or event is intended or should be inferred. This book expresses the author’s views and opinions. The information contained in this book is provided without any express, statutory, or implied warranties. Neither the authors, Microsoft Corporation, nor its resellers, or distributors will be held liable for any damages caused or alleged to be caused either directly or indirectly by this book. Acquisitions and Developmental Editor: Russell Jones Production Editor: Rachel Steely Editorial Production: Dianne Russell, Octal Publishing, Inc.