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Merge remote-tracking branch 'upstream/main' into patch-1

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This commit is contained in:
Lee Lup Yuen 2023-10-09 13:11:16 +08:00
commit 07f150e3d0
3 changed files with 79 additions and 59 deletions
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37
src/config.rs
View file

@ -31,6 +31,8 @@ pub struct Config {
pub read_only: bool,
/// Duplicate all packets sent from the server. (default: 1)
pub duplicate_packets: u8,
/// Overwrite existing files. (default: false)
pub overwrite: bool,
}
impl Config {
@ -44,6 +46,7 @@ impl Config {
single_port: false,
read_only: false,
duplicate_packets: 1,
overwrite: false,
};
args.next();
@ -88,24 +91,33 @@ impl Config {
println!(
" -p, --port <PORT>\t\tSet the listening port of the server (default: 69)"
);
println!(" -d, --directory <DIRECTORY>\tSet the listening port of the server (default: Current Working Directory)");
println!(" -d, --directory <DIRECTORY>\tSet the serving directory (default: Current Working Directory)");
println!(" -s, --single-port\t\tUse a single port for both sending and receiving (default: false)");
println!(" -r, --read-only\t\tRefuse all write requests, making the server read-only (default: false)");
println!(" --duplicate-packets <NUM>\tDuplicate all packets sent from the server (default: 1)");
println!(" --duplicate-packets <NUM>\tDuplicate all packets sent from the server (default: 0)");
println!(" --overwrite\t\t\tOverwrite existing files (default: false)");
println!(" -h, --help\t\t\tPrint help information");
process::exit(0);
}
"--duplicate-packets" => {
if let Some(duplicate_packets_str) = args.next() {
let duplicate_packets = duplicate_packets_str.parse::<u8>()?;
if duplicate_packets < 1 {
return Err("Duplicate packets must be greater than 0".into());
if duplicate_packets == u8::MAX {
return Err(format!(
"Duplicate packets should be less than {}",
u8::MAX
)
.into());
}
config.duplicate_packets = duplicate_packets;
} else {
return Err("Missing duplicate packets after flag".into());
}
}
"--overwrite" => {
config.overwrite = true;
}
invalid => return Err(format!("Invalid flag: {invalid}").into()),
}
@ -178,13 +190,6 @@ mod tests {
#[test]
fn returns_error_on_invalid_duplicate_packets() {
assert!(Config::new(
["/", "--duplicate-packets", "0"]
.iter()
.map(|s| s.to_string()),
)
.is_err());
assert!(Config::new(
["/", "--duplicate-packets", "-1"]
.iter()
@ -192,4 +197,14 @@ mod tests {
)
.is_err());
}
#[test]
fn returns_error_on_max_duplicate_packets() {
assert!(Config::new(
["/", "--duplicate-packets", format!("{}", u8::MAX).as_str()]
.iter()
.map(|s| s.to_string()),
)
.is_err());
}
}

53
src/server.rs
View file

@ -32,6 +32,7 @@ pub struct Server {
directory: PathBuf,
single_port: bool,
read_only: bool,
overwrite: bool,
duplicate_packets: u8,
largest_block_size: usize,
clients: HashMap<SocketAddr, Sender<Packet>>,
@ -47,6 +48,7 @@ impl Server {
directory: config.directory.clone(),
single_port: config.single_port,
read_only: config.read_only,
overwrite: config.overwrite,
duplicate_packets: config.duplicate_packets,
largest_block_size: DEFAULT_BLOCK_SIZE,
clients: HashMap::new(),
@ -94,7 +96,7 @@ impl Server {
{
eprintln!("Could not send error packet");
};
eprintln!("Received invalid request");
eprintln!("Received write request while in read-only mode");
continue;
}
println!("Receiving {filename} from {from}");
@ -179,7 +181,7 @@ impl Server {
worker_options.block_size,
worker_options.timeout,
worker_options.window_size,
self.duplicate_packets,
self.duplicate_packets + 1,
);
worker.send()
}
@ -194,32 +196,14 @@ impl Server {
to: &SocketAddr,
) -> Result<(), Box<dyn Error>> {
let file_path = &self.directory.join(file_name);
match check_file_exists(file_path, &self.directory) {
ErrorCode::FileExists => Socket::send_to(
&self.socket,
&Packet::Error {
code: ErrorCode::FileExists,
msg: "requested file already exists".to_string(),
},
to,
),
ErrorCode::AccessViolation => Socket::send_to(
&self.socket,
&Packet::Error {
code: ErrorCode::AccessViolation,
msg: "file access violation".to_string(),
},
to,
),
ErrorCode::FileNotFound => {
let initialize_write = &mut || -> Result<(), Box<dyn Error>> {
let worker_options = parse_options(options, RequestType::Write)?;
let mut socket: Box<dyn Socket>;
if self.single_port {
let single_socket = create_single_socket(&self.socket, to)?;
self.clients.insert(*to, single_socket.sender());
self.largest_block_size =
max(self.largest_block_size, worker_options.block_size);
self.largest_block_size = max(self.largest_block_size, worker_options.block_size);
socket = Box::new(single_socket);
} else {
@ -240,7 +224,32 @@ impl Server {
self.duplicate_packets,
);
worker.receive()
};
match check_file_exists(file_path, &self.directory) {
ErrorCode::FileExists => {
if self.overwrite {
initialize_write()
} else {
Socket::send_to(
&self.socket,
&Packet::Error {
code: ErrorCode::FileExists,
msg: "requested file already exists".to_string(),
},
to,
)
}
}
ErrorCode::AccessViolation => Socket::send_to(
&self.socket,
&Packet::Error {
code: ErrorCode::AccessViolation,
msg: "file access violation".to_string(),
},
to,
),
ErrorCode::FileNotFound => initialize_write(),
_ => Err("Unexpected error code when checking file".into()),
}
}

12
src/worker.rs
View file

@ -9,7 +9,6 @@ use std::{
const MAX_RETRIES: u32 = 6;
const TIMEOUT_BUFFER: Duration = Duration::from_secs(1);
const DEFAULT_DUPLICATE_DELAY: Duration = Duration::from_millis(1);
/// Worker `struct` is used for multithreaded file sending and receiving.
/// It creates a new socket using the Server's IP and a random port
@ -44,7 +43,7 @@ pub struct Worker<T: Socket + ?Sized> {
blk_size: usize,
timeout: Duration,
windowsize: u16,
duplicate_packets: u8,
repeat_amount: u8,
}
impl<T: Socket + ?Sized> Worker<T> {
@ -55,7 +54,7 @@ impl<T: Socket + ?Sized> Worker<T> {
blk_size: usize,
timeout: Duration,
windowsize: u16,
duplicate_packets: u8,
repeat_amount: u8,
) -> Worker<T> {
Worker {
socket,
@ -63,7 +62,7 @@ impl<T: Socket + ?Sized> Worker<T> {
blk_size,
timeout,
windowsize,
duplicate_packets,
repeat_amount,
}
}
@ -242,10 +241,7 @@ impl<T: Socket + ?Sized> Worker<T> {
}
fn send_packet(&self, packet: &Packet) -> Result<(), Box<dyn Error>> {
for i in 0..self.duplicate_packets {
if i > 0 {
std::thread::sleep(DEFAULT_DUPLICATE_DELAY);
}
for _ in 0..self.repeat_amount {
self.socket.send(packet)?;
}