FTP Client and Server

Jialong Wu

Introduction

FTP socket programming for BOTH client and server.

Course project for Computer Networks, instructed by Prof. Yang.

For details, please see my report (in Chinese).

Server

The server is implemented using C and Berkeley Socket API, supporting:

• FTP services on specified ports and directories
• Multiple clients to connect simultaneously without blocking
• Totally 19 FTP commands: USER, PASS, RETR, STOR, QUIT, SYST, TYPE, PORT, PASV, MKD, CWD, PWD, LIST, RMD, RNFR, RNTO, REST, DELE
• Large file transmission
• Resume transmission from breakpoint, for both upload and download
• Connected and normally used by the following own implementation of FTP clients

Enviroment

Linux

Usage

Enter the directory server, run:

make serve
sudo ./server -port [port] -root [root]

The default value is 21 for port and \tmp for root.

Client

The client is implemented using Python and PyQt5 for GUI, supporting:

• FTP commands: USER, PASS, RETR, STOR, QUIT, SYST, TYPE, PORT, PASV, MKD, CWD, PWD, LIST, RMD, RNFR, RNTO, REST, DELE
• Connecting to and normally served by the above own implementation of FTP servers and vsftp servers
• Large file transmission
• Resume transmission from breakpoint, for both upload and download
• File transmission without blocking the server

Requirements

PyQt5

Usage

Enter the directory client, run:

python client.py

Acknowledgement

We would like to thank Prof. Yang and TAs for their devotion to the course Computer Networks.