The document discusses web services and SOAP web services. It defines a web service as a service that is accessed over a network and is independent of communication protocols, data formats, and technologies. SOAP is introduced as a standard protocol for exchanging information between computer networks that is also independent of transport protocols, data formats, and standards. The document then summarizes several WS-* specifications and standards related to SOAP, including WS-Addressing, WS-Reliable Messaging, WS-Coordination, WS-Atomic Transaction, and WS-Business Activity. It also discusses WS-Policy and WS-Metadata Exchange. The document concludes with discussing a proof of concept distributed cache system that demonstrates scalability, performance, and
A Drupalcon Chicago presentation for coders/developers about web application security in the Drupal system. Covering Cross Site Scripting and Cross Site Request Forgeries.
This document discusses DOM based cross-site scripting (XSS) and methods for detecting it. It begins by explaining what DOM and XSS are, and defines DOM based XSS as exploiting client-side script execution by modifying the DOM environment. Next, it provides examples of how DOM based XSS can work by manipulating DOM objects like document.location. The document concludes by outlining approaches for detecting DOM based XSS including general analysis, using the headless browser PhantomJS to programmatically interact with web pages, and leveraging a modified version of PhantomJS called Tainted PhantomJS that is designed specifically for DOM based XSS detection.
The document discusses various topics related to the internet and web fundamentals:
- The internet is a global network of interconnected smaller networks owned by no single entity, while the web refers specifically to the collection of hyperlinked documents accessible via HTTP.
- HTTP is the application layer protocol for transferring data on the web. Other topics discussed include DNS, cookies, sessions, forms, error codes, and common web/application server architectures.
- Questions are also addressed regarding URLs, domains, and the differences between IP addresses and domain names in web requests.
BsidesDelhi 2018: DomGoat - the DOM Security PlaygroundBSides Delhi
Presenter: Lavakumar Kuppan
Abstract: In a Mobile application pentest the tester focuses on identifying vulnerabilities on both the mobile app and the backend service the app talks to. However, in a web application pentest the client-side is usually ignored and the focus is placed entirely on security issues on the server-side. Modern browsers have several capabilities which make the JS code running in the browser almost as complex powerful as a mobile app and by extension also prone to serious security issues. Most pentesters remain unaware of these security issues and their severity. DOMGoat is an open source application that is developed primarily to help pentesters understand the various client-side security issues that can occur in the DOM. This includes everything from the several variants of DOM XSS to JavaScript cryptography to client-side data leakage and more. This talk will explain the various security issues that affect the DOM and also show how DOMGoat can be used to learn about these issues.
The document discusses the Slim micro web framework and JSON web tokens (JWT). Slim is a PHP micro framework that helps build simple yet powerful web apps and APIs. It uses a dispatcher to handle requests and responses. JWT are used for securely transmitting information between parties as JSON objects that can be verified. When using JWT for authentication, a token is issued upon login and included in subsequent requests to authorize the user.
The document discusses techniques for creating secure mashups, including server-side and client-side approaches. It describes challenges around trust between participants and potential exploits. It provides an overview of tools like ADsafe, Caja, and dojox.secure that aim to sandbox code by restricting language features and access. Dojox.secure in particular provides a full framework for loading, validating, and restricting access to DOM for third-party widgets in a controlled manner.
This presentation provides an overview of web fundamentals, including:
1) The evolution of the web from Tim Berners-Lee's original invention (Web 1.0) to user-generated content (Web 2.0) to artificial intelligence and personalization (Web 3.0).
2) The basic components of the web including websites, webpages, web applications, clients like browsers, and servers.
3) How web communication works using protocols like HTTP and techniques like cookies to transfer information between clients and servers.
CouchDB: replicated data store for distributed proxy servertkramar
CouchDB is a document database that uses JSON documents and handles replication of data across a distributed system. It supports views generated with JavaScript MapReduce that allow querying like SQL SELECT statements. CouchDB provides pagination of view results both slowly using skip and limit parameters, and faster using startdoc and limit. The document discusses using CouchDB alongside a distributed proxy server to store and query access logs.
A Drupalcon Chicago presentation for coders/developers about web application security in the Drupal system. Covering Cross Site Scripting and Cross Site Request Forgeries.
This document discusses DOM based cross-site scripting (XSS) and methods for detecting it. It begins by explaining what DOM and XSS are, and defines DOM based XSS as exploiting client-side script execution by modifying the DOM environment. Next, it provides examples of how DOM based XSS can work by manipulating DOM objects like document.location. The document concludes by outlining approaches for detecting DOM based XSS including general analysis, using the headless browser PhantomJS to programmatically interact with web pages, and leveraging a modified version of PhantomJS called Tainted PhantomJS that is designed specifically for DOM based XSS detection.
The document discusses various topics related to the internet and web fundamentals:
- The internet is a global network of interconnected smaller networks owned by no single entity, while the web refers specifically to the collection of hyperlinked documents accessible via HTTP.
- HTTP is the application layer protocol for transferring data on the web. Other topics discussed include DNS, cookies, sessions, forms, error codes, and common web/application server architectures.
- Questions are also addressed regarding URLs, domains, and the differences between IP addresses and domain names in web requests.
BsidesDelhi 2018: DomGoat - the DOM Security PlaygroundBSides Delhi
Presenter: Lavakumar Kuppan
Abstract: In a Mobile application pentest the tester focuses on identifying vulnerabilities on both the mobile app and the backend service the app talks to. However, in a web application pentest the client-side is usually ignored and the focus is placed entirely on security issues on the server-side. Modern browsers have several capabilities which make the JS code running in the browser almost as complex powerful as a mobile app and by extension also prone to serious security issues. Most pentesters remain unaware of these security issues and their severity. DOMGoat is an open source application that is developed primarily to help pentesters understand the various client-side security issues that can occur in the DOM. This includes everything from the several variants of DOM XSS to JavaScript cryptography to client-side data leakage and more. This talk will explain the various security issues that affect the DOM and also show how DOMGoat can be used to learn about these issues.
The document discusses the Slim micro web framework and JSON web tokens (JWT). Slim is a PHP micro framework that helps build simple yet powerful web apps and APIs. It uses a dispatcher to handle requests and responses. JWT are used for securely transmitting information between parties as JSON objects that can be verified. When using JWT for authentication, a token is issued upon login and included in subsequent requests to authorize the user.
The document discusses techniques for creating secure mashups, including server-side and client-side approaches. It describes challenges around trust between participants and potential exploits. It provides an overview of tools like ADsafe, Caja, and dojox.secure that aim to sandbox code by restricting language features and access. Dojox.secure in particular provides a full framework for loading, validating, and restricting access to DOM for third-party widgets in a controlled manner.
This presentation provides an overview of web fundamentals, including:
1) The evolution of the web from Tim Berners-Lee's original invention (Web 1.0) to user-generated content (Web 2.0) to artificial intelligence and personalization (Web 3.0).
2) The basic components of the web including websites, webpages, web applications, clients like browsers, and servers.
3) How web communication works using protocols like HTTP and techniques like cookies to transfer information between clients and servers.
CouchDB: replicated data store for distributed proxy servertkramar
CouchDB is a document database that uses JSON documents and handles replication of data across a distributed system. It supports views generated with JavaScript MapReduce that allow querying like SQL SELECT statements. CouchDB provides pagination of view results both slowly using skip and limit parameters, and faster using startdoc and limit. The document discusses using CouchDB alongside a distributed proxy server to store and query access logs.
This document covers topics related to frontend web development including HTML5, CSS3, JavaScript, and jQuery. It discusses different types of web and mobile applications, as well as technologies and frameworks. The document then goes into detail about HTML document structure, various HTML elements like headings, paragraphs, links and images, using CSS for styling, CSS selectors, block and inline elements, and the CSS box model. It also covers HTML links, lists, and input elements.
Sergey Chernyshev presents about reducing the harm caused by these tools and best practices for consumers as well as creators of such 3rd party content.
This document provides an introduction and overview of AJAX (Asynchronous JavaScript and XML). It discusses the advantages of JavaScript, including how AJAX allows for reactive web interfaces similar to desktop applications by avoiding full page refreshes. The key principles of AJAX are outlined, including using JavaScript for user interactions, processing data in the browser, and reducing client-server communication. AJAX is described as a technique used to build Rich Internet Applications (RIAs) that have features similar to desktop apps but are executed within a browser. The document also provides details on using the XMLHttpRequest object to make asynchronous requests to a server and handle the server response.
Securing your Movable Type installationSix Apart KK
1) Separate directories for CGI scripts and static content, execute CGI scripts outside of document root, restrict CGI access by IP address or rename mt.cgi script.
2) Secure admin screen by configuring basic authentication for mt.cgi file in httpd.conf and .htaccess files, using a separate ID and password from MT account.
3) Require SSL for admin access by configuring AdminCGIPath and SSL in mt-config.cgi, and redirecting non-SSL access of mt.cgi to SSL using RewriteRule in httpd.conf.
HTML5 provides new semantic elements that allow for more precise structuring and presentation of web content. Key elements include <header> for introductory content, <nav> for navigation links, <article> for self-contained compositions, <section> for document sections, <aside> for tangential content, and <footer> for closing content. HTML5 also introduces new elements like <time> for dates and times, <address> for contact information, <figure> for images and captions, and <details> for expandable content sections.
Companion slides for Stormpath CTO and Co-Founder Les Hazlewood's Elegant REST Design Webinar. This presentation covers all the RESTful best practices learned building the Stormpath APIs. Whether you’re writing your first API, or just need to figure out that last piece of the puzzle, this is a great opportunity to learn more.
Stormpath is a User Management API that reduces development time with instant-on, scalable user infrastructure. Stormpath's intuitive API and expert support make it easy for developers to authenticate, manage and secure users and roles in any application.
Building Secure User Interfaces With JWTs (JSON Web Tokens)Stormpath
With new tools like Angular.js and Node.js, it is easier than ever to build User Interfaces and Single-Page Applications (SPAs) backed by APIs.
But how to do it securely? Web browsers are woefully insecure, and hand-rolled APIs are risky.
In this presentation, Robert Damphousse, lead front-end developer at Stormpath, covers web browser security issues, technical best practices and how you can mitigate potential risks. Enjoy!
Topics Covered:
1. Security Concerns for Modern Web Apps
2. Cookies, The Right Way
3. Session ID Problems
4. Token Authentication to the rescue!
5. Angular Examples
This document discusses using AngularJS to build Chrome extensions. It covers hosted applications, packaged applications, and extensions. Extensions can access Chrome APIs and have permissions like modifying context menus. AngularJS is well-suited for extensions because data binding makes sharing data between pages easy and its templates work within the Content Security Policy restrictions of extensions. The document demonstrates binding extension data to the $rootScope to synchronize with LocalStorage, and using $apply to update the scope from asynchronous Chrome API callbacks.
Local storage can expand the attack surface for web applications by allowing sensitive data to be accessed through malware or viruses. It is also vulnerable to cross-site scripting (XSS) attacks, where malicious code could harvest and transmit stored data. Additionally, lack of privacy controls enables persistent user tracking across domains and invasion of privacy. Proper security defenses and protections are needed to mitigate risks from local storage.
This document discusses web cache deception techniques that can be used to exploit vulnerabilities in how web caches handle URLs. It begins with background on web caching and the concept of path confusion. It then explains basic and advanced techniques for web cache deception, including using URL encoding, and discusses observations like bypassing CSRF protections and hijacking sessions. The document concludes that correctly configuring caches is challenging, as complex interactions between technologies can be exploited in unintended ways, and variations of these techniques increase the number of vulnerable sites.
The document discusses the evolution of the web platform and browser security. It covers the basic technologies that underlie the web like HTML, CSS, JavaScript, and HTTP. It describes how these technologies work together to deliver content to users and allow for client-side interactivity. Key elements covered include HTML elements and tags, how CSS and JavaScript are used in web pages, JSON for data formatting, URIs for resource identification, the HTTP request/response protocol, and common HTTP methods and headers.
What are JSON Web Tokens and Why Should I Care?Derek Edwards
In this talk originally presented at the San Diego Javascript meetup on December 3rd 2014, I explain how JSON Web Tokens can be used as a replacement for session/cookie-based user authentication in modern web applications.
Since web applications are increasingly leveraging client-side MVC frameworks such as Ember.JS, Angular and Backbone, traditional authentication schemes that leverage cookies are less desirable. I explain the key challenges with traditional authentication schemes and how JWT can be used as a very clean alternative.
Building a modern API architecture is a constant struggle between ease of development and security. JSON Web Tokens (JWTs) introduce a means of building authentication into JSON objects being transmitted through APIs.
In this session we’ll explore how JWTs work to build verifiable and trusted objects, allowing them to be combined with standards such as OAuth 2 for capturing access tokens, leading to a secure means of JavaScript SDK dev.
The document discusses different methods for adding semantic markup to web pages, including RDFa, Microformats, and Microdata. RDFa embeds RDF triples in HTML attributes, Microformats uses class and rel attributes to mark up specific types of information, and Microdata uses itemscope and itemprop attributes to identify items and properties. The document compares the pros and cons of each approach and provides examples of how to mark up different types of content like movies, people, products, and reviews using these semantic annotation languages.
jQuery is a lightweight JavaScript library that simplifies HTML document traversal and manipulation, event handling, animation, and Ajax interactions. It works by using a simple syntax to select elements and perform actions on them. To use jQuery, include the jQuery library file, wrap code in a document ready function, and use the $ selector and jQuery methods. jQuery greatly improves the efficiency of JavaScript coding.
TSSJS2010 Presenatation on: Performance Anti Patterns In Ajax Applicationsguestc75cdc
The document discusses performance anti-patterns in Ajax applications. It covers the anatomy of web 2.0 applications, the impact of slow performance on users, common performance anti-patterns like too many network requests and mistakes with JavaScript frameworks, and how to analyze slow pages in 5 minutes using free tools. The presentation aims to help attendees avoid common mistakes that can slow down Ajax apps and analyze where pages are slow.
The document discusses performance anti-patterns in Ajax applications. It covers the anatomy of web 2.0 applications, the impact of slow performance on users, common mistakes that degrade performance such as too many network requests and latency issues, and how to analyze page speed using free tools. The presentation aims to teach attendees how to avoid common framework pitfalls and optimize Ajax application performance.
Join Stormpath Developer Evangelist, Robert Damphousse, to dive deep into browser security. Robert will explain how Session IDs, Man in the Middle (MITM), Cross-Site Scripting (XSS), and Cross-Site Request Forgery (CSRF) attacks work, and how to use cookies to support security best practices.
Topics Covered:
- Security concerns for modern web apps
- Cookies, the right way
- MITM, XSS, and CSRF attacks
- Session ID problems
- Examples in an Angular app
Researcher : Adam Baldwin
Conference Presented : DEFCON 20
Flavor of cross site scripting, where the attacker “blindly” deploys a series of malicious payloads on web pages that are likely to save them to a persistent state (like in a database, or in a log file).
Large-Scale Analysis of Style Injection by Relative Path OverwriteSajjad "JJ" Arshad
This document summarizes research on a new type of web attack called relative path overwrite, which allows attackers to inject CSS (style) directives into websites without requiring markup or script injection. The researchers measured how many popular websites are vulnerable by testing URL manipulation techniques on over 2.6 billion web pages. They found that over 5% of domains allowed style injection, but fewer than 1% could be successfully exploited in Chrome or Internet Explorer due to requirements like the page loading in quirks mode. The researchers outline countermeasures for websites to prevent this attack, such as using absolute paths or base tags for stylesheets instead of relative paths.
The document provides an overview of service-oriented architecture (SOA) and web services. It discusses how SOA and web services allow existing enterprise systems to be integrated and enhanced in a cost-effective manner. Key aspects covered include the definition of web services, the evolution of web services through different phases, common web service standards like SOAP, WSDL, UDDI, and differences between SOAP-based and RESTful web services.
The document provides an overview of web services and the key components that make up the web services framework. It discusses the goals of enabling universal interoperability and widespread adoption of web services using standards. The core components that enable application-to-application interaction over the web are described as SOAP for messaging, WSDL for service descriptions, UDDI for service discovery, and WSFL for composition of web services. The web services framework is being rapidly standardized and adopted to bring a new level of interoperability to web applications.
This document covers topics related to frontend web development including HTML5, CSS3, JavaScript, and jQuery. It discusses different types of web and mobile applications, as well as technologies and frameworks. The document then goes into detail about HTML document structure, various HTML elements like headings, paragraphs, links and images, using CSS for styling, CSS selectors, block and inline elements, and the CSS box model. It also covers HTML links, lists, and input elements.
Sergey Chernyshev presents about reducing the harm caused by these tools and best practices for consumers as well as creators of such 3rd party content.
This document provides an introduction and overview of AJAX (Asynchronous JavaScript and XML). It discusses the advantages of JavaScript, including how AJAX allows for reactive web interfaces similar to desktop applications by avoiding full page refreshes. The key principles of AJAX are outlined, including using JavaScript for user interactions, processing data in the browser, and reducing client-server communication. AJAX is described as a technique used to build Rich Internet Applications (RIAs) that have features similar to desktop apps but are executed within a browser. The document also provides details on using the XMLHttpRequest object to make asynchronous requests to a server and handle the server response.
Securing your Movable Type installationSix Apart KK
1) Separate directories for CGI scripts and static content, execute CGI scripts outside of document root, restrict CGI access by IP address or rename mt.cgi script.
2) Secure admin screen by configuring basic authentication for mt.cgi file in httpd.conf and .htaccess files, using a separate ID and password from MT account.
3) Require SSL for admin access by configuring AdminCGIPath and SSL in mt-config.cgi, and redirecting non-SSL access of mt.cgi to SSL using RewriteRule in httpd.conf.
HTML5 provides new semantic elements that allow for more precise structuring and presentation of web content. Key elements include <header> for introductory content, <nav> for navigation links, <article> for self-contained compositions, <section> for document sections, <aside> for tangential content, and <footer> for closing content. HTML5 also introduces new elements like <time> for dates and times, <address> for contact information, <figure> for images and captions, and <details> for expandable content sections.
Companion slides for Stormpath CTO and Co-Founder Les Hazlewood's Elegant REST Design Webinar. This presentation covers all the RESTful best practices learned building the Stormpath APIs. Whether you’re writing your first API, or just need to figure out that last piece of the puzzle, this is a great opportunity to learn more.
Stormpath is a User Management API that reduces development time with instant-on, scalable user infrastructure. Stormpath's intuitive API and expert support make it easy for developers to authenticate, manage and secure users and roles in any application.
Building Secure User Interfaces With JWTs (JSON Web Tokens)Stormpath
With new tools like Angular.js and Node.js, it is easier than ever to build User Interfaces and Single-Page Applications (SPAs) backed by APIs.
But how to do it securely? Web browsers are woefully insecure, and hand-rolled APIs are risky.
In this presentation, Robert Damphousse, lead front-end developer at Stormpath, covers web browser security issues, technical best practices and how you can mitigate potential risks. Enjoy!
Topics Covered:
1. Security Concerns for Modern Web Apps
2. Cookies, The Right Way
3. Session ID Problems
4. Token Authentication to the rescue!
5. Angular Examples
This document discusses using AngularJS to build Chrome extensions. It covers hosted applications, packaged applications, and extensions. Extensions can access Chrome APIs and have permissions like modifying context menus. AngularJS is well-suited for extensions because data binding makes sharing data between pages easy and its templates work within the Content Security Policy restrictions of extensions. The document demonstrates binding extension data to the $rootScope to synchronize with LocalStorage, and using $apply to update the scope from asynchronous Chrome API callbacks.
Local storage can expand the attack surface for web applications by allowing sensitive data to be accessed through malware or viruses. It is also vulnerable to cross-site scripting (XSS) attacks, where malicious code could harvest and transmit stored data. Additionally, lack of privacy controls enables persistent user tracking across domains and invasion of privacy. Proper security defenses and protections are needed to mitigate risks from local storage.
This document discusses web cache deception techniques that can be used to exploit vulnerabilities in how web caches handle URLs. It begins with background on web caching and the concept of path confusion. It then explains basic and advanced techniques for web cache deception, including using URL encoding, and discusses observations like bypassing CSRF protections and hijacking sessions. The document concludes that correctly configuring caches is challenging, as complex interactions between technologies can be exploited in unintended ways, and variations of these techniques increase the number of vulnerable sites.
The document discusses the evolution of the web platform and browser security. It covers the basic technologies that underlie the web like HTML, CSS, JavaScript, and HTTP. It describes how these technologies work together to deliver content to users and allow for client-side interactivity. Key elements covered include HTML elements and tags, how CSS and JavaScript are used in web pages, JSON for data formatting, URIs for resource identification, the HTTP request/response protocol, and common HTTP methods and headers.
What are JSON Web Tokens and Why Should I Care?Derek Edwards
In this talk originally presented at the San Diego Javascript meetup on December 3rd 2014, I explain how JSON Web Tokens can be used as a replacement for session/cookie-based user authentication in modern web applications.
Since web applications are increasingly leveraging client-side MVC frameworks such as Ember.JS, Angular and Backbone, traditional authentication schemes that leverage cookies are less desirable. I explain the key challenges with traditional authentication schemes and how JWT can be used as a very clean alternative.
Building a modern API architecture is a constant struggle between ease of development and security. JSON Web Tokens (JWTs) introduce a means of building authentication into JSON objects being transmitted through APIs.
In this session we’ll explore how JWTs work to build verifiable and trusted objects, allowing them to be combined with standards such as OAuth 2 for capturing access tokens, leading to a secure means of JavaScript SDK dev.
The document discusses different methods for adding semantic markup to web pages, including RDFa, Microformats, and Microdata. RDFa embeds RDF triples in HTML attributes, Microformats uses class and rel attributes to mark up specific types of information, and Microdata uses itemscope and itemprop attributes to identify items and properties. The document compares the pros and cons of each approach and provides examples of how to mark up different types of content like movies, people, products, and reviews using these semantic annotation languages.
jQuery is a lightweight JavaScript library that simplifies HTML document traversal and manipulation, event handling, animation, and Ajax interactions. It works by using a simple syntax to select elements and perform actions on them. To use jQuery, include the jQuery library file, wrap code in a document ready function, and use the $ selector and jQuery methods. jQuery greatly improves the efficiency of JavaScript coding.
TSSJS2010 Presenatation on: Performance Anti Patterns In Ajax Applicationsguestc75cdc
The document discusses performance anti-patterns in Ajax applications. It covers the anatomy of web 2.0 applications, the impact of slow performance on users, common performance anti-patterns like too many network requests and mistakes with JavaScript frameworks, and how to analyze slow pages in 5 minutes using free tools. The presentation aims to help attendees avoid common mistakes that can slow down Ajax apps and analyze where pages are slow.
The document discusses performance anti-patterns in Ajax applications. It covers the anatomy of web 2.0 applications, the impact of slow performance on users, common mistakes that degrade performance such as too many network requests and latency issues, and how to analyze page speed using free tools. The presentation aims to teach attendees how to avoid common framework pitfalls and optimize Ajax application performance.
Join Stormpath Developer Evangelist, Robert Damphousse, to dive deep into browser security. Robert will explain how Session IDs, Man in the Middle (MITM), Cross-Site Scripting (XSS), and Cross-Site Request Forgery (CSRF) attacks work, and how to use cookies to support security best practices.
Topics Covered:
- Security concerns for modern web apps
- Cookies, the right way
- MITM, XSS, and CSRF attacks
- Session ID problems
- Examples in an Angular app
Researcher : Adam Baldwin
Conference Presented : DEFCON 20
Flavor of cross site scripting, where the attacker “blindly” deploys a series of malicious payloads on web pages that are likely to save them to a persistent state (like in a database, or in a log file).
Large-Scale Analysis of Style Injection by Relative Path OverwriteSajjad "JJ" Arshad
This document summarizes research on a new type of web attack called relative path overwrite, which allows attackers to inject CSS (style) directives into websites without requiring markup or script injection. The researchers measured how many popular websites are vulnerable by testing URL manipulation techniques on over 2.6 billion web pages. They found that over 5% of domains allowed style injection, but fewer than 1% could be successfully exploited in Chrome or Internet Explorer due to requirements like the page loading in quirks mode. The researchers outline countermeasures for websites to prevent this attack, such as using absolute paths or base tags for stylesheets instead of relative paths.
The document provides an overview of service-oriented architecture (SOA) and web services. It discusses how SOA and web services allow existing enterprise systems to be integrated and enhanced in a cost-effective manner. Key aspects covered include the definition of web services, the evolution of web services through different phases, common web service standards like SOAP, WSDL, UDDI, and differences between SOAP-based and RESTful web services.
The document provides an overview of web services and the key components that make up the web services framework. It discusses the goals of enabling universal interoperability and widespread adoption of web services using standards. The core components that enable application-to-application interaction over the web are described as SOAP for messaging, WSDL for service descriptions, UDDI for service discovery, and WSFL for composition of web services. The web services framework is being rapidly standardized and adopted to bring a new level of interoperability to web applications.
Java Web Services [1/5]: Introduction to Web ServicesIMC Institute
This document provides an introduction to web services. It defines services and web services, compares web services to other technologies, and outlines the main web services specifications and implementation approaches. Specifically, it discusses SOAP, WSDL, UDDI, RESTful services, and how web services use XML messaging over HTTP to enable interoperability across platforms. The document also presents examples of how web services can be used for application integration and B2B integration.
This document provides an overview of web service specifications and standards including SOAP, WSDL, WS-Addressing, WS-Security, WS-Reliable Messaging, and BPEL. It discusses how WS-Addressing specifies endpoints and message addressing, how WS-Security provides identification, authentication, authorization, integrity and confidentiality, and how WS-Reliable Messaging ensures reliable message delivery. It also summarizes WS-I goals of achieving interoperability and its Basic Profile 1.0 recommendations.
This document provides an overview of web services and service-oriented architecture (SOA). It discusses the history and evolution of web services including SOAP, WSDL, UDDI, and RESTful web services. It also covers testing, security, and resources for further information on web services and SOA.
Building Services: .NET FX 3.5, SOAP, REST, and Beyond
Most developers will be aware of various Microsoft technologies to help build SOAP services, the latest of which are WCF and WF in .NET FX 3.5, but there’s another world of services outside SOAP. Recently Microsoft has been very active in its support for, and use of, REST as a mechanism for implementing services. This event will cover recent and forthcoming technologies for building services with SOAP and REST, and we’ll explain REST for the uninitiated.
Agenda:
Session 1: The SOAP Story
In this session we’ll do a lighting quick re-cap of what SOAP is, what specs surround it before looking at how far the SOAP programming model has come in Microsoft’s latest-and-greatest stack – Windows Communication Foundation (WCF) V3.5. We’ll talk about different approaches to building services and we’ll take a good look at the integration between WCF V3.5 and Windows Workflow Foundation (WF) V3.5 which opens up a whole new way of implementing services.
Session 2: Time for a REST
Web applications have evolved; using technologies like AJAX and Silverlight they have rich client-side code that wants to consume services, but they prefer JSON, “plain xml” and REST. In this session we’ll introduce REST for the uninitiated, and we’ll demonstrate some of the new and forthcoming technology that Microsoft has for working with REST: WCF 3.5, Web3S, Windows Live Data, and Codename “Astoria”.
For more details and the original slidedeck visit http://www.microsoft.com/uk/msdn/events/new/Detail.aspx?id=316
This document summarizes the key aspects of web services and Windows Communication Foundation (WCF) services. It discusses how web services use standard technologies like WSDL, XML, and SOAP to allow different systems to communicate over a network. It also outlines the basic concepts of WCF services, including why they were created and how to create a simple WCF service in 6 steps, from generating a project to testing it using the WCF Test Client.
This document discusses web services and service-oriented architectures (SOA). It defines a web service as a software system identified by a URI that exposes its interfaces using XML. SOA technologies allow services to exchange messages and describe themselves so they can be published and discovered. The document then outlines the various technologies that make up the "web services stack", including those that handle transport (SOAP), descriptions (WSDL), and discovery (WSIL, UDDI). It provides examples of how XML, SOAP, WSDL, and WSIL/UDDI work and explains their roles in enabling web services.
Service Oriented Development With Windows Communication Foundation Tulsa DnugJason Townsend, MBA
The document discusses key concepts in service-oriented development using Windows Communication Foundation (WCF). It defines terms like service, endpoint, binding, contract, and describes how they relate. It also covers messaging patterns, security, reliability, hosting and more WCF features.
Here are some sample web services projects to try:
- Currency conversion service: Converts between currencies using live exchange rates
- Weather service: Gets current weather conditions for a city by calling a public API
- Book search service: Searches book titles and descriptions from a database
- Calculator service: Provides basic math operations like add, subtract, multiply, divide
- Address validation service: Validates and standardizes address fields for a location
- Image processing service: Resizes, crops or applies filters to images uploaded to a server
These cover common domains like finance, data, calculation etc. and demonstrate basic CRUD operations, external API calls, file uploads etc. Good for learning core web service concepts.
This document provides an overview of publishing and consuming web services. It defines web services and discusses SOAP and REST-based web services. SOAP web services use XML and HTTP, have advantages like language independence but disadvantages like being slow. REST services operate on resources using HTTP methods and have constraints like being stateless and cacheable. The document also discusses JSON web services and schemas for describing REST interfaces.
Complete Architecture and Development Guide To Windows Communication Foundati...Abdul Khan
This is Complete Architecture and Development Guide To Windows Communication Foundation (WCF) for building service-oriented applications. It enables architect to quickly in understand WCF and developers to build secure, reliable, transacted solutions that integrate across platforms and interoperate with existing investments.
Web services, the ws stack, and research prospects a surveybdemchak
This document provides an overview of web services and the web services stack. It discusses key web service standards and protocols including SOAP, WSDL, UDDI, WS-Addressing, WS-Policy, WS-ReliableMessaging, and WS-Security. It also summarizes several research papers related to policy-based authorization, dynamic service composition, best practices, delegation of authority, and non-repudiation in B2B interactions using web services.
Tulsa Tech Fest2008 Service Oriented Development With Windows Communication F...Jason Townsend, MBA
The document discusses service oriented development with Windows Communication Foundation (WCF). It covers the evolution of service orientation including object-oriented programming, component-based development, and service-oriented architecture. It then discusses key concepts of WCF including contracts, bindings, and transports. Finally, it provides examples of how to configure services and endpoints in WCF.
The document provides information about web service testing training offered by www.theTestingWorld.com. It details the trainer's 10+ years of experience in testing tools like Selenium, QTP, LoadRunner, JMeter, SoapUI and technologies like Unix, shell scripting, Python, and Big Data. The training includes 25+ video courses on functional testing, performance testing, API testing, manual testing and test management for Rs. 6000 through online payment options.
Web services concepts, protocols and developmentishmecse13
Web services allow applications to communicate over the Internet through open standards and protocols. They are self-contained, modular applications that can be described, published, located, and invoked over a network, typically the Internet. Key technologies that enable web services include XML, SOAP, WSDL, and UDDI. SOAP is a messaging protocol that allows communication between applications over HTTP. WSDL describes how to access web services and what operations they perform. UDDI provides a registry for businesses to publish and discover web services.
Web services allow applications to communicate over the web through XML. Windows Communication Foundation (WCF) and Web API both enable building web services, but WCF focuses on interoperability across protocols while Web API is ideal for building RESTful services compatible with browsers and devices. WCF supports features like transactions and reliability but requires defining bindings, while Web API is simpler and uses HTTP verbs for CRUD actions. The choice depends on requirements for interoperability versus a RESTful approach.
This document provides an overview of Java web services. It discusses the key concepts of web services architecture including WSDL, SOAP, and UDDI. WSDL is an XML format for describing web services, SOAP is a messaging protocol for making procedure calls over a network, and UDDI is a registry for web services. The document also provides details on how these technologies interact and the role they play in web services.
58. WS-Metadata Exchange WS-Metadata allows to discover the binding, address and contract, in order to be used by tools to create the proxy to connect with the service
59.
60. It can be achieved via other technologies like UDDI.
Own vision of web services Servicios web es un tópico en los últimos años, donde todo el mundo habla y vende, yo quiero exponer mi punto de vista acerca del término. Study of WS-* from a SOA perspective Investigar/Aprender un poco más profundo estos estándares, que/donde/cómo....... A proof of concept implementation Sistema de memoria distribuida donde se pone en práctica la tecnología aprendida y se encara algunos de los problemas de SOA.
Own vision of web services Servicios web es un tópico en los últimos años, donde todo el mundo habla y vende, yo quiero exponer mi punto de vista acerca del término. Study of WS-* from a SOA perspective Investigar/Aprender un poco más profundo estos estándares, que/donde/cómo....... A proof of concept implementation Sistema de memoria distribuida donde se pone en práctica la tecnología aprendida y se encara algunos de los problemas de SOA.
- this section is about my opinion on soap services on at present.
Buzzword: palabra de moda Buzzword are dangerous, people tried to convince with Buzzword, because everybody heard about. It was associated to Soap, due in fact that the Soap standards defined the services as Web services.
The service is executed on a remoted system hosting. – many different kind of services, business services, software as services, ( google maps, delicio....), Amazon S3 - The broad range of possibilities makes it confused, multiple way to create web services.
Here I explain my point of view for web services: - cloud (amazon, infraestructure as service,google/azzure platform as service) - saas (open api) - business services which are open to open its services for more customers - soa (service oriented architecture)
Basado en XML header/body section.....
Inteoperability makes than different languages can communicate each other. Java, .Net, Phyton... I can offer my business to everybody. It makes higher my business oportunities.
The most the industry accepts the standard, more tools/frameworks and libraries will be written to help developers to do their job easier. Developers are a important piece on software projects, makes their life easier will help the technology adoption. That's why http has been selected for many companies to run its business services.
Standards have different maturity degree, are supported by entities or companies. Trying to give implementations to solve common problems in distributed communications. A technology implements a standard when it gives the developers the facility to use it without any development effort. Just use it. By the time being, not all the technologies implement each WS-*, or implementation maturity is not high. Anyway, take advantage of them. Observing how others solved a problem, can help you to address your solution. When there is no implementation, read WS-* to learn how to design the application to solve the same problem.
Questions about?? Personal point of view.
Own vision of web services Servicios web es un tópico en los últimos años, donde todo el mundo habla y vende, yo quiero exponer mi punto de vista acerca del término. Study of WS-* from a SOA perspective Investigar/Aprender un poco más profundo estos estándares, que/donde/cómo....... A proof of concept implementation Sistema de memoria distribuida donde se pone en práctica la tecnología aprendida y se encara algunos de los problemas de SOA.
-c hange robutness: In contract-last design,it could be possible than modifying the framework (soap stack), could bring out another wsdl implementation. -allows you to reuse XSD around software application -Classes cannot always represent all the XML posibilities. Or XSD represent more informacion than classes.
Otro punto a tratar a la hora de diseñar ws-servicios. Contract first---> encourage XML, but it is not a requirement. Contract last----> B/D objects is normally applied.
I think there are no a best way to develop them. Depend also on framework you use. What you want to use. Normally Business Data objects is the normal approach. I can also be carried out a mix design, policies manually, sometimes manually XSD, and generates classes from them, but the tool the WSDL....... Developers must be familiarized with technologies and have knowledge about limitiations/advantages/drawbacks. Having knowledge and different perspectives increases the developer skills to deliver a better solution.
Address: where the service is located. Binding: how a client can communicate (transport/format/features/security...) will be used during the communication. Contract: defines the service operations available to the clients. Learn about WCF is not learn soap framework.
Other specification of WS-Addressing: indicates how a soap node must process a header. Relay: soap node must not remove the headers with Relay attribute after processing it. Mustunderstand: soap nodes don't ignore headers with this attribute. Actor or Role: If the role specified for the node matches the role attribute of the header block, the node processes the header; if the roles do not match, the node does not process the header block.
Short explication Depending on the framework facility, the developer must implement the routing/processing or can be done by the framework.
– mensaje llegó. - mensaje falló para ser retransmitido - orden Whether the message successfully arrived at its intended destination Whether the message Reliable messaging failed to arrive and therefore requires a retransmission Whether a series of messages arrived in the sequence they were intended to.
//Interval that the recipient shall wait until sending acknowledgements for messages. reliableSession.AcknowledgementInterval = new TimeSpan(0,0,2); //helps the sender avoid wasting network resources by stopping sending messages when the receive-side buffer for incoming messages is full reliableSession.FlowControlEnabled = true; //number of messages that can be held in the local message buffer for each reliable session.[1,4092] reliableSession.MaxTransferWindowSize = 32; //If no messages are received within that time limit, the session faults. reliableSession.InactivityTimeout = new TimeSpan(0, 10, 0); // This setting controls how many pending requests for new client initiated sessions are kept in the &quot;pending channels&quot; list. reliableSession.MaxPendingChannels reliableSession.MaxRetryCount how many times the infrastructure shall retry to resend a message in case of a transmission failure. reliableSession.Ordered receiver side infrastructure will dispatch all messages in the exact order they were sent.
Explain a use case. (Bank withdraw- deposit.....)
WSDL is standard to define the different features of the service (contract, binding, policies and location). – New endpoint to show the wsdl. - A través de WS-Transfer - Request/Response ?wsdl....
It shows the process to create a proxy to work with a service. It reads binding (policies, transport), location and contract from the WSDL information. The proxy is used to connect with the services. Binding/Address can be modified and the proxy must only update its address and binding by reading the WSDL again. If the contract change, the proxy created before was invalid.
UDDI is not broadly used by the industry. Vendors make use of UDDI to implement tools suitable for SOA.
Own vision of web services Servicios web es un tópico en los últimos años, donde todo el mundo habla y vende, yo quiero exponer mi punto de vista acerca del término. Study of WS-* from a SOA perspective Investigar/Aprender un poco más profundo estos estándares, que/donde/cómo....... A proof of concept implementation Sistema de memoria distribuida donde se pone en práctica la tecnología aprendida y se encara algunos de los problemas de SOA.
– Try to solve a common problem in high load applications. – Web applications session saves in memory. - Not in db to not load the db server. Influenced in WS-Transfer/REST architecture.
Resource: any item which can be represented in a common representation (client and service) to be transferred. Whichever serializable object. Resource identifier: represents a logical entity of the resource, the value associated with the specific &quot;simple&quot; resource. Session identifier. Representation: is a concrete form of the resource state metadata, describing (encoding) the data. Serializer. Resource factory : responsible to create a resource state and return its identifier. Location, know state of operation resource. Resource operation : responsible to manipulate a resource state such as: to get, put, and delete a resource state.
– Used to simplify the application complexity. – Configuration of container allows dependency injection.
Own vision of web services Servicios web es un tópico en los últimos años, donde todo el mundo habla y vende, yo quiero exponer mi punto de vista acerca del término. Study of WS-* from a SOA perspective Investigar/Aprender un poco más profundo estos estándares, que/donde/cómo....... A proof of concept implementation Sistema de memoria distribuida donde se pone en práctica la tecnología aprendida y se encara algunos de los problemas de SOA.