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#![feature(plugin)]
#![feature(custom_derive)]
#![feature(question_mark)]
extern crate byteorder;
extern crate iron;
extern crate router;
extern crate logger;
extern crate uuid;
extern crate time;
extern crate rustc_serialize;
use iron::prelude::*;
use iron::{AfterMiddleware, status};
use iron::modifier::Modifier;
use router::Router;
use logger::Logger;
use rustc_serialize::json::ToJson;
use std::io::Read;
use std::net::*;
use std::collections::BTreeMap;
use std::collections::HashMap;
use std::ascii::AsciiExt;
mod error;
use error::RequestError;
mod config;
#[macro_use] mod utils;
mod snippet;
mod compiler;
mod run_result;
use snippet::Snippet;
impl Modifier<Response> for Snippet {
fn modify(self, resp: &mut Response) {
self.render().to_string().modify(resp);
}
}
fn read_post_form(req: &mut Request) -> Result<HashMap<String, String>, RequestError> {
let mut body = String::new();
if let Err(_) = req.body.read_to_string(&mut body) {
return Err(RequestError::BadRequest);
}
Ok(utils::parse_post(&body)?)
}
fn snippet_create(req: &mut Request) -> IronResult<Response> {
let form = read_post_form(req)?;
match (form.get("lang"), form.get("code")) {
(Some(lang_), Some(code)) => {
let lang = lang_.to_ascii_lowercase();
let snip = Snippet::create(&lang, &code)?;
Ok(Response::with((status::Created, snip)))
},
_ => Err(RequestError::BadRequest.into())
}
}
fn snippet_show(req: &mut Request) -> IronResult<Response> {
let router = req.extensions.get::<Router>().unwrap();
match router.find("sid") {
Some(sid) => Ok(Response::with((status::Ok, Snippet::find(sid)?))),
None => Err(RequestError::BadRequest.into())
}
}
fn snippet_run(req: &mut Request) -> IronResult<Response> {
let form = read_post_form(req)?;
match (form.get("sid"), form.get("cid")) {
(Some(sid), Some(cid)) => {
let snip = Snippet::find(&sid)?;
let comp = config::compiler(&snip.metadata.lang, &cid).ok_or(RequestError::NotFound)?;
comp.run(&snip)?;
Ok(Response::with((status::Ok, run_result::open_render(&snip, &comp).to_string())))
},
_ => Err(RequestError::BadRequest.into())
}
}
fn results_stdout(req: &mut Request) -> IronResult<Response> {
let router = req.extensions.get::<Router>().unwrap();
match (router.find("sid"), router.find(":cid")) {
(Some(sid), Some(cid)) => {
let snip = Snippet::find(sid)?;
let comp = config::compiler(&snip.metadata.lang, cid).ok_or(RequestError::NotFound)?;
let stdout = run_result::read_stdout_raw(&snip, &comp);
Ok(Response::with((status::Ok, stdout)))
},
_ => Err(RequestError::BadRequest.into())
}
}
struct Recoverer;
impl AfterMiddleware for Recoverer {
fn catch(&self, _: &mut Request, err: IronError) -> IronResult<Response> {
match err.response.status {
Some(st) => {
let mut data = BTreeMap::new();
data.insert("error".into(), err.to_string());
Ok(Response::with((st, data.to_json().to_string())))
},
_ => Err(err)
}
}
}
fn main() {
config::load();
let mut router = Router::new();
router.get("/api/snippet/:sid", snippet_show);
router.post("/api/snippet/new", snippet_create);
router.post("/api/snippet/run", snippet_run);
router.get("/api/snippet/:sid/:cid/stdout", results_stdout);
let (logger_before, logger_after) = Logger::new(None);
let mut chain = Chain::new(router);
chain.link_before(logger_before);
chain.link_after(Recoverer);
chain.link_after(logger_after);
let host = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 3000);
println!("listening on http://{}", host);
Iron::new(chain).http(host).unwrap();
}
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