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use std::io::{Read, Write};
use std::net::TcpStream;
use zagan_bet::protocol::LineBuffer;
#[derive(Clone)]
pub struct TlsServer {
acceptor: native_tls::TlsAcceptor,
}
impl TlsServer {
pub fn new(
cert_path: &str,
_key_path: &str,
unsafe_mode: bool,
) -> Result<Self, Box<dyn std::error::Error>> {
let cert_data = if unsafe_mode {
if std::path::Path::new(cert_path).exists() {
std::fs::read(cert_path)?
} else {
return Err(format!(
"Certificate file '{}' not found. In --unsafe mode, you must provide a valid PKCS12 certificate file.\n\
You can generate one with:\n\
openssl req -x509 -newkey rsa:2048 -keyout key.pem -out cert.pem -days 365 -nodes\n\
openssl pkcs12 -export -out identity.p12 -inkey key.pem -in cert.pem",
cert_path
).into());
}
} else {
std::fs::read(cert_path)?
};
let identity = native_tls::Identity::from_pkcs12(&cert_data, "")?;
let acceptor = native_tls::TlsAcceptor::new(identity)?;
Ok(Self { acceptor })
}
pub fn accept(&self, stream: TcpStream) -> Result<TlsStream, Box<dyn std::error::Error>> {
let stream = self.acceptor.accept(stream)?;
Ok(TlsStream::new(stream))
}
}
pub struct TlsStream {
stream: native_tls::TlsStream<TcpStream>,
lines: LineBuffer,
}
impl TlsStream {
pub fn new(stream: native_tls::TlsStream<TcpStream>) -> Self {
Self {
stream,
lines: LineBuffer::new(),
}
}
pub fn read_line(&mut self, s: &mut String) -> std::io::Result<usize> {
match self.lines.read_line(&mut self.stream)? {
Some(line) => {
s.push_str(&line);
s.push('\n');
Ok(line.len() + 1)
}
None => Ok(0),
}
}
pub fn write_line(&mut self, msg: &str) -> std::io::Result<()> {
use std::io::Write;
self.stream.write_all(msg.as_bytes())?;
self.stream.write_all(b"\n")?;
self.stream.flush()?;
Ok(())
}
pub fn peer_addr(&self) -> std::io::Result<std::net::SocketAddr> {
self.stream.get_ref().peer_addr()
}
}
impl Read for TlsStream {
fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
self.stream.read(buf)
}
}
impl Write for TlsStream {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
self.stream.write(buf)
}
fn flush(&mut self) -> std::io::Result<()> {
self.stream.flush()
}
}
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