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use std::fs::File;
use std::io::ErrorKind::InvalidInput;
use std::io::prelude::*;
use std::io;
use std::net::TcpStream;
use std::ops::Sub;
use std::path::Path;
use packet::{PacketRead, PacketWrite, Protocol};
use rustc_serialize::base64::{ToBase64, STANDARD};
use rustc_serialize::json;
use time;
#[derive(Debug, RustcDecodable, RustcEncodable)]
pub struct Description {
pub text: String,
}
#[derive(Debug, RustcDecodable, RustcEncodable)]
pub struct Players {
pub max: i32,
pub online: i32,
pub sample: Option<Vec<Sample>>,
}
#[derive(Debug, RustcDecodable, RustcEncodable)]
pub struct Sample {
pub name: String,
pub id: String,
}
#[derive(Debug, RustcDecodable, RustcEncodable)]
pub struct Version {
pub name: String,
pub protocol: i32,
}
#[derive(Debug, RustcDecodable, RustcEncodable)]
pub struct Response {
pub description: String,
pub favicon: Option<String>,
pub players: Players,
pub version: Version,
}
impl Protocol for Response {
type Clean = Response;
fn proto_len(value: &Response) -> usize {
<String as Protocol>::proto_len(&json::encode(&value).unwrap())
}
fn proto_encode(value: &Response, dst: &mut Write) -> io::Result<()> {
try!(<String as Protocol>::proto_encode(&json::encode(&value).unwrap(), dst));
Ok(())
}
fn proto_decode(src: &mut Read) -> io::Result<Response> {
let s = try!(<String as Protocol>::proto_decode(src));
println!("Response proto_decode {}", s);
json::decode(&s).map_err(|_| io::Error::new(InvalidInput, "found invalid JSON"))
}
}
pub fn response(mut stream: &mut TcpStream) -> io::Result<()> {
use packet::status::serverbound::Packet::{self, StatusRequest};
use packet::status::clientbound::StatusResponse;
match try!(Packet::read(stream)) {
StatusRequest(_) => {
let mut file = try!(File::open(&Path::new("assets/favicon.png")));
let mut contents = Vec::new();
try!(file.read_to_end(&mut contents));
let favicon = contents.to_base64(STANDARD);
let resp = Response{
version: Version{
name: "1.8.3".to_string(),
protocol: 47,
},
players: Players{
online: 0,
max: 20,
sample: None
},
description: "With custom favicons! Woot :D".to_string(),
favicon: Some(format!("data:image/png;base64,{:}", favicon)),
};
try!(StatusResponse { response: resp }.write(stream));
Ok(())
}
wrong_packet => Err(io::Error::new(InvalidInput, &format!("Invalid packet read, expecting C->S StatusRequest packet, got {:?}", wrong_packet)[..]))
}
}
pub fn pong(mut stream: &mut TcpStream) -> io::Result<()> {
use packet::status::clientbound::Pong;
use packet::status::serverbound::Packet::{self, Ping};
match try!(Packet::read(stream)) {
Ping(ping) => {
try!(Pong { time: ping.time }.write(stream));
Ok(())
}
wrong_packet => Err(io::Error::new(InvalidInput, &format!("Invalid packet read, expecting C->S Ping packet, got {:?}", wrong_packet)[..]))
}
}
pub fn request(mut stream: &mut TcpStream) -> io::Result<Response> {
use packet::status::serverbound::StatusRequest;
use packet::status::clientbound::Packet::{self, StatusResponse};
try!(StatusRequest.write(stream));
match try!(Packet::read(stream)) {
StatusResponse(resp) => Ok(resp.response),
wrong_packet => Err(io::Error::new(InvalidInput, &format!("Invalid packet read, expecting S->C StatusResponse packet, got {:?}", wrong_packet)[..]))
}
}
pub fn ping(mut stream: &mut TcpStream) -> io::Result<i64> {
use packet::status::clientbound::Packet::{self, Pong};
use packet::status::serverbound::Ping;
let start = time::get_time();
try!(Ping { time: start.sec }.write(stream));
match try!(Packet::read(stream)) {
Pong(_) => {
let end = time::get_time();
let elapsed = end.sub(start).num_milliseconds();
Ok(elapsed)
}
wrong_packet => Err(io::Error::new(InvalidInput, &format!("Invalid packet read, expecting S->C Pong packet, got {:?}", wrong_packet)[..]))
}
}
#[allow(unused_imports)]
#[cfg(test)]
mod tests {
use super::*;
use std::io::prelude::*;
use std::net::TcpStream;
use packet::handshake::Handshake;
use packet::{PacketWrite, NextState};
#[test]
#[cfg(vanilla_server_required)]
fn client_server_list_ping() {
let mut stream = TcpStream::connect("127.0.0.1:25565").unwrap();
Handshake {
proto_version: 47,
server_address: "127.0.0.1".to_string(),
server_port: 25565,
next_state: NextState::Status
}.write(&mut stream).unwrap();
let response = request(&mut stream).unwrap();
println!("request {:?}", response);
let elapsed = ping(&mut stream).unwrap();
println!("ping {}", elapsed);
}
#[test]
#[should_panic]
#[cfg(vanilla_server_required)]
fn client_slp_reversed() {
let mut stream = TcpStream::connect("127.0.0.1:25565").unwrap();
let elapsed = ping(&mut stream).unwrap();
println!("ping {}", elapsed);
Handshake {
proto_version: 47,
server_address: "127.0.0.1".to_string(),
server_port: 25565,
next_state: NextState::Status
}.write(&mut stream).unwrap();
let response = request(&mut stream).unwrap();
println!("request {:?}", response);
}
}