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use std::io::{
self,
Write,
Read,
BufRead,
BufReader,
};
use std::net::TcpStream;
use message::Message;
use command::Command;
use ::{ DEBUG, Result, IrscError };
#[cfg(feature = "ssl")]
use openssl::ssl::{ SslContext, SslMethod, SslStream };
/// Yes, I don't like the name either, but it's private, so...
enum StreamKind {
Plain(TcpStream),
#[cfg(feature = "ssl")]
Ssl(SslStream)
}
impl Write for StreamKind {
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
match *self {
StreamKind::Plain(ref mut s) => s.write(buf),
#[cfg(feature = "ssl")]
StreamKind::Ssl(ref mut s) => s.write(buf)
}
}
fn flush(&mut self) -> io::Result<()> {
match *self {
StreamKind::Plain(ref mut s) => s.flush(),
#[cfg(feature = "ssl")]
StreamKind::Ssl(ref mut s) => s.flush()
}
}
}
impl Read for StreamKind {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
match *self {
StreamKind::Plain(ref mut s) => s.read(buf),
#[cfg(feature = "ssl")]
StreamKind::Ssl(ref mut s) => s.read(buf)
}
}
}
pub struct Server {
stream: Option<StreamKind>,
}
impl Server {
pub fn new() -> Server {
Server {
stream: None
}
}
fn handle_event(&mut self, msg: &Message) {
if msg.command() == "PING" {
let _ = self.send(Command::PONG(msg.suffix().unwrap_or(""), None).to_message());
}
}
pub fn connect(&mut self, host: String, port: u16) -> Result<()> {
let s = &mut self.stream;
match *s { Some(_) => return Err(IrscError::AlreadyConnected), _ => () };
*s = match TcpStream::connect((host.as_ref(), port)) {
Ok(tcp) => Some(StreamKind::Plain(tcp)),
Err(e) => return Err(IrscError::Io(e))
};
Ok(())
}
#[cfg(feature = "ssl")]
pub fn connect_ssl(&mut self, host: String, port: u16) -> Result<()> {
let mut s = self.stream.lock();
match *s { Some(_) => return Err(IrscError::AlreadyConnected), _ => () };
let tcp_stream = match TcpStream::connect((host.as_ref(), port)) {
Ok(tcp) => Some(tcp),
Err(e) => return Err(IrscError::Io(e))
};
let ssl = SslContext::new(SslMethod::Tlsv1);
let ssl_stream = SslStream::new(&ssl, tcp_stream);
*s = ssl_stream;
Ok(())
}
#[inline]
fn sendraw(&mut self, s: &str) -> Result<()> {
info!(">> {}", s);
if DEBUG && s.len() > 512 {
panic!("Message too long, kittens will die if this runs in release mode. Msg: {}", s)
}
self.stream.as_mut()
.ok_or(IrscError::NotConnected)
.and_then(|mut stream| stream.write_all(s.as_bytes())
.and_then(|_| stream.flush())
.map_err(IrscError::Io))
}
pub fn send(&mut self, msg: Message) -> Result<()> {
self.sendraw(&msg.to_string())
}
pub fn join(&mut self, channel: &str) -> Result<()> {
self.sendraw(format!("JOIN {}\r\n", channel).as_ref())
}
pub fn part(&mut self, channel: &str) -> Result<()> {
self.sendraw(format!("PART {}\r\n", channel).as_ref())
}
pub fn nick(&mut self, nick: &str) -> Result<()> {
self.sendraw(format!("NICK {}\r\n", nick).as_ref())
}
pub fn user(&mut self, username: &str, hostname: &str, servername: &str, realname: &str) -> Result<()> {
self.sendraw(format!("USER {} {} {} :{}\r\n", username, hostname, servername, realname).as_ref())
}
pub fn password(&mut self, password: &str) -> Result<()> {
self.sendraw(format!("PASS {}\r\n", password).as_ref())
}
pub fn msg(&mut self, target: &str, message: &str) -> Result<()> {
self.sendraw(format!("PRIVMSG {} :{}\r\n", target, message).as_ref())
}
pub fn listen(&mut self, events: &[fn(&mut Server, &Message)]) -> Result<()> {
let reader = BufReader::new(match self.stream {
Some(StreamKind::Plain(ref s)) => (*s).try_clone().unwrap(),
#[cfg(feature = "ssl")]
Some(StreamKind::Ssl(ref s)) => (*s).try_clone().unwrap(),
None => return Err(IrscError::NotConnected)
});
for line in reader.lines() {
let line = line.unwrap().parse();
if let Ok(msg) = line {
println!("{:?}", msg);
self.handle_event(&msg);
for e in events.iter() {
e(self, &msg)
}
}
}
Ok(())
}
}
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