Network Programming

Course Title: Network Programming

Course No: CACS355

Nature of the Course: Theory + Lab

Semester: 6

Full Marks: 20 + 20 + 60

Pass Marks: 8 + 8 + 24

Credit Hours: 3

Course Description

This course is designed to extend students' knowledge and practice in analysis and design of computer networks by focusing on computer network programming. It includes introduction, Internet Address, URLs and URIs, HTTP, URLConnections, Socket Programming, IP Multicast and RMI. The JAVA programming language will be used throughout the course. It does not entirely focus on theoretical concept but also strongly focuses on practical skill based knowledge.

Course Objectives

The general objectives of this course are to provide theoretical as well as practical knowledge of network programming to make students capable of:

Developing, implementing, managing and troubleshooting the issues of network programming in their personal as well professional life

Course Contents

1. Introduction

3 hrs

1.1. Network Programing Features and Scope

1.2. Network Programming Language, Tools & Platforms

1.3. Client and Server Applications

1.4. Client server model and software design

2. Internet Addresses

4 hrs

2.1. The InetAddress Class: Creating New InetAddress Objects, Getter Methods, Address Types, Testing Reachability and Object Methods

2.2. Inet4Address and Inet6Address

2.3. The Network Interface Class: Factory Method & Getter Method

2.4. Some Useful Programs: SpamCheck, Processing Web Server Logfiles

3. URLs and URIs

5 hrs

3.1. URIs: URLs and Relative URLs

3.2. The URL Class: Creating New URLs, Retrieving Data From a URL, Splitting a URL into Pieces, Equality & Comparison and Conversion

3.3. The URI Class: Constructing a URI, The Parts of the URI, Resolving Relative URIs, Equality & Comparison and String Representation

3.4. x-www-form-urlencoded: URL Encoder and URL Decoder

3.5. Proxies: System Properties, The ProxyClass and The ProxySelector Class

3.6. Communicating with Server-Side Programs Through GET

3.7. Accessing Password-Protected Sites: The Authenticator Class, The PasswordAuthentication Class and The JPasswordField Class

4. HTTP

2 hrs

4.1. The protocol: Keep-Alive

4.2. HTTP Methods

4.3. The Request Body

4.4. Cookies: CookieManager and CookiesStore

5. URLConnections

5 hrs

5.1. Openning URLConnections

5.2. Reading Data from Server

5.3. Reading Header: Retrieving specific Header Fields and Retrieving Arbitrary Header Fields

5.4. Cache: Web Cache for Java

5.5. Configuring the Connection

protected URL url

protected boolean connected

protected boolean allowUserInteraction

protected boolean doInput

protected boolean doOutput

protected boolean ifModificationSince

protected boolean useCaches and Timeouts

5.6. Configuring the Client Request HTTP Header

5.7. Security Considerations for URLConnections

5.8. Guessing MIME Media Types

5.9. HttpURLConnection: The Request Methods, Disconnecting from the Server, Handling Server Responses, Proxies and Streaming Mode

6. Socket for Clients

5 hrs

6.1. Introduction to Socket

6.2. Using Sockets: Investigating Protocols with telnet, Reading from Servers with Sockets, Writing to Servers with Sockets

6.3. Constructing and Connecting Sockets

Basic Constructors

Picking a Local Interface to Connect From

Constructing Without Connecting

Socket Addresses and Proxy Servers

6.4. Getting Information about a Socket: Closed or Connected?, toString()

6.5. Setting Socket Options: TCP_NODELAY, SO_LINGER, SO_TIMEOUT, SO_RCVBUF and SO_SNDBUF, SO_KEEPALIVE, OOBINLINE, SO_REUSEADDER and IP_TOS Class of Services

6.6. Socket in GUI Applications: Whois and A Network Client Library

7. Socket for Servers

5 hrs

7.1. Using ServerSockets: Serving Binary Data, Multithreaded Servers, Writing to Servers with Sockets and Closing Server Sockets

7.2. Logging: What to Log and How to Log

7.3. Constructing Server Sockets: Constructing Without Binding

7.4. Getting Information about Server Socket

7.5. Socket Options: SO_TIMEOUT, SO_RSUMEADDR, SO_RCVBUF and Class of Service

7.6. HTTP Servers: A Single File Server, A Redirector and A Full-Fledged HTTP Server

8. Secure Socket

4 hrs

8.1. Secure Communication

8.2. Creating Secure Client Sockets

8.3. Event Handlers

8.4. Session Management

8.5. Client Mode

8.6. Creating Secure Server Socket

8.7. Configure SSLServerSockets: Choosing the Cipher Suits, Session Management and Client Mode

9. Nonblocking I/O

3 hrs

9.1. An Example Client and Server

9.2. Buffers

Creating Buffers

Filling and Draining

Bulk Methods

Data Conversion

View Buffers

Compacting Buffers

Duplicating Buffers

Slicing Buffers

Marking and Resetting Object Methods

9.3. Channels

SocketChannel

ServerSocketChannel

The Channels Class

Asynchronous Channels

Socket Options

9.4. Readiness Selection: The Selector Class, The SelectionKey Class

5 hrs

10.4. The DatagramPacket Class: The Constructor, The get Methods, The setter Methods

10.5. The DatagramSocket Class: The Constructor, Sending and Receiving Datagrams, Managing Connections

10.6. Socket Options: SO_TIMEOUT, SORCVBUF, SO_SNDBUF, SO_RSUMEADDR, SO_BROADCAST and IP_TOS

10.7. UDP Applications: Simple UDP Clients, UDPServer and A UDP Echo Client

10.8. DatagramChannel: Using DatagramChannel

11. IP Multicast

2 hrs

11.1. Multicasting: Multicast Address and Groups, Clients and Servers, Routers and Routing

11.2. Working with Multicast Sockets: The Constructor, Communicating with a Group

12. Remote Method Invocation (RMI)

2 hrs

12.1. Defining and Implementing RMI Service Interface

12.2. Creating an RMI Server and Client

12.3. Running the RMI System

Laboratory Works

Laboratory work should be done covering all the topics listed above and a small project work should be carried out using the concept learnt in this course using Java programming Language.

1.Laboratory Work

Reference Books

1.Elliotte Rusty Harold, "Java Network Programming", O'Reilly, 2014.
2.Douglas E. Comer, David L. Stevens, "Internetworking with TCP_IP, Vol. III Client-Server Programming and Applications, Linux_Posix Sockets Version", Addison-Wesley, 2000.
3.David Reilly, Michael Reilly, "Java Network Programming and Distributed Computing", Addison-Wesley Professional, 2002.
4.Kenneth L. Calvert, Michael J. Donahoo, "TCP-IP Sockets in Java. Practical Guide for Programmers", Morgan Kaufmann, 2008.
5.Andrew S. Tanenbaum, David J. Wetherall, "Computer Networks, 5/e", Prentice Hall, 2011.
6.Kurose, Ross, "Computer Networking: A Top-Down Approach", Pearson Education Limited, 2017.

Notes:

This syllabus follows the official BCA curriculum of Tribhuvan University. In case of any doubt or revision, the university's published syllabus shall be considered authoritative.

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Network Programming

Course Description

Course Objectives

Course Contents

Laboratory Works

Reference Books

Notes: