Datagram FTP

A simple File Transfer Protocol client-server application using the Java Socket API.

Build

Assuming you have the latest version of Java installed and the JAVA_HOME and PATH are set properly; please run these commands from the parent directory i.e. datagram-ftp

Windows

mvnw clean install

*nix

./mvnw clean install

Run

First run the server: java -jar ftp-server/target/ftp-server-1.0-SNAPSHOT-jar-with-dependencies.jar

Then run the client: java -jar ftp-client/target/ftp-client-1.0-SNAPSHOT-jar-with-dependencies.jar

Objective(s):

To practice the:

• design and implementation of a message passing protocol.
• design and implementation of a serial client-server application using the Java socket API.

Requirement(s):

Each student will complete the design and implement a client-server file management system using Datagrams. The system should allow each client user to reliably upload and download a single file to and from the file server. Using the system, the client user should be able to:

1. Log–on
2. Upload a file to a folder (unique to each client) on the server.
3. Download a file to a folder
4. Log-off

The student will need to consider:

• Protocol Design
• Application Design and Implementation (Software Architecture)

Format

              0      7 8     15 16    23 24    31  
             +--------+--------+--------+--------+ 
             |     Source      |   Destination   | 
             |      Port       |      Port       | 
             +--------+--------+--------+--------+ 
             |                 |                 | 
             |     Length      |    Checksum     | 
             +--------+--------+--------+--------+ 
             |                                     
             |          data octets ...            
             +---------------- ...                 

                  User Datagram Header Format