Bahn - FTP Server (RFC 959)

An FTP server project built in Rust, designed to follow RFC 959. This project serves as a learning experience for the Rust programming language.

Todo

• Basic FTP server functionality
• Authentication support
• Initial implementation of RFC 959 commands
• Create types for Data Transfer using the data connection, for now Response::CustomString
• Close existing PASV connection if client sends multiple PASSV to prevent Port DDOS
• File transfers (upload/download)
• Have another receiver in the session to signal data sent
• Ensure user cant have a PORT and PASV command at the same time
• Refactor the Response into maybe an Enum or something else since the data connection usually doesn't care about the code and message
• Use BufReader instead of calling read on the TCP stream (https://doc.rust-lang.org/std/io/struct.BufReader.html)
• Implement transmission modes according to RFC (Block, Compressed etc)
• Add debug statements for data connections (generally improve logging)
• Use timeouts for the connections
• Add more test cases
• Cleanup checks for data connection and probably the entire response

FTP Commands According to RFC959

Command	Arguments	Implemented
USER	<username>	[x]
PASS	<password>	[x]
ACCT	<account-information>	[ ]
CWD	<pathname>	[x]
CDUP	(none)	[x]
SMNT	<pathname>	[ ]
QUIT	(none)	[x]
REIN	(none)	[x]
PORT	<host-port>	[x]
PASV	(none)	[x]
TYPE	<type-code>	[x]
STRU	<structure-code>	[ ]
MODE	<mode-code>	[ ]
RETR	<pathname>	[x]
STOR	<pathname>	[x]
STOU	(none)	[x]
APPE	<pathname>	[x]
ALLO	<decimal-integer> [ R <decimal-integer> ]	[ ]
REST	<marker>	[ ]
RNFR	<pathname>	[ ]
RNTO	<pathname>	[ ]
ABOR	(none)	[ ]
DELE	<pathname>	[x]
RMD	<pathname>	[x]
MKD	<pathname>	[x]
PWD	(none)	[x]
LIST	[<pathname>]	[x]
NLST	[<pathname>]	[x]
SITE	<string>	[ ]
SYST	(none)	[x]
STAT	[<pathname>]	[x]
HELP	[<string>]	[x]
NOOP	(none)	[x]

Getting Started

Prerequisites

• Rust (latest stable version recommended)
• Cargo package manager

Installation

git clone https://github.com/Norris1z/bahn.git
cd bahn
mv .env.example .env #update with preferred env

Usage

cargo run

Contributing

Contributions are welcome! Feel free to open issues or submit pull requests.

License

MIT License