Web Technologies for Social Networking Dr Dan Everett Master of Internet Technology program University of Georgia, US
Two big questions
Outline of this talk
The Great Development Debate: 1950's – 1970's Import-substitution development strategy vs Export-led development strategy
Thomas Friedman, Apostle of Neoliberalism
What is a social networking site?
Some social networking projects done by the MIT program An organization of volunteers building a community playground Caregivers of autistic individuals Practitioners of child law Students preparing for careers as health care executives
Communities of practice
Communities of Practice, Social networking sites, and Ontologies
A spectrum of tools for building social networks
Content management system: A web site whose information content is stored in a database An engine to dynamically generate pages from the stored content An administrator who designs the layout, monitors site content, and assigns roles to users
Taiwanese government site
Site for Web Programmers
A Jordanian Drupal site
Drupal useful features
Vulnerability to an SQL injection attack Consider a Web site that responds to an input form providing two user-entered values, loginname and my_pwd. The server program inserts these usersuppled values into an SQL query: “Select user. Name from User where login='loginname' and password='my_pwd'” If this query returns a result, the user is valid.
The Evil Hacker strikes! The Evil Hacker enters the following values into the form: Your login name: login-name Your password: my_pwd'; update User set password='my_pwd
The Evil Hacker strikes! The server is deceived into executing this: “Select user. Name from User where login='login-name' and password='my_pwd'; update User set password='my_pwd'” The server changes the password of every user into the evil hacker's password!
Scripting languages
Java-based Web Apps
Model-View-Controller Architecture
Automated Unit Testing
J 2 EE – adding Enterprise Beans
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