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#![feature(plugin)]
#![feature(custom_derive)]
extern crate byteorder;
extern crate num;
extern crate iron;
extern crate router;
extern crate hyper;
extern crate uuid;
extern crate time;
extern crate rustc_serialize;
use iron::prelude::*;
use iron::{AfterMiddleware, status};
use router::Router;
use rustc_serialize::json::ToJson;
use std::io::Read;
use std::net::*;
use std::collections::BTreeMap;
use std::ascii::AsciiExt;
mod error;
use error::PoeError;
use error::RequestError;
mod config;
#[macro_use] mod utils;
mod snippet;
mod compiler;
mod run_result;
use snippet::Snippet;
fn snippet_create(req: &mut Request) -> IronResult<Response> {
let mut body = String::new();
let form = try!(req.body.read_to_string(&mut body)
.map(|_| utils::parse_post(body))
.map_err(|e| RequestError::from(PoeError::from(e.to_string()))));
match (form.get("lang"), form.get("code")) {
(Some(lang_), Some(code)) => {
let lang = lang_.to_ascii_lowercase();
match Snippet::create(&lang, &code) {
Ok(snip) => Ok(Response::with((status::Created, snip.render().to_string()))),
Err(e) => Err(RequestError::InternalError(e).into())
}
},
_ => Err(RequestError::BadRequest.into())
}
}
fn snippet_show(req: &mut Request) -> IronResult<Response> {
let router = req.extensions.get::<Router>().unwrap();
let osnip = router.find("snippet_id").and_then(|sid| Snippet::find(sid).ok());
match osnip {
Some(snip) => Ok(Response::with((status::Ok, snip.render().to_string()))),
None => Ok(Response::with((status::NotFound)))
}
}
fn snippet_run(req: &mut Request) -> IronResult<Response> {
let mut body = String::new();
let form = try!(req.body.read_to_string(&mut body)
.map(|_| utils::parse_post(body))
.map_err(|e| RequestError::from(PoeError::from(e))));
match (form.get("sid"), form.get("cid")) {
(Some(sid), Some(cid)) => {
let snip = try!(Snippet::find(&sid).map_err(|e|RequestError::NotFound));
let comp = try!(config::compiler(&snip.metadata.lang, &cid).ok_or(RequestError::NotFound));
try!(comp.run(&snip).map_err(|e|RequestError::from(e)));
Ok(Response::with((status::Ok, run_result::open_render(&snip, &comp).to_string())))
},
_ => 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/:snippet_id", snippet_show);
router.post("/api/snippet/new", snippet_create);
router.post("/api/snippet/run", snippet_run);
let mut middleware = Chain::new(router);
middleware.link_after(Recoverer);
let host = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 3000);
println!("listening on http://{}", host);
Iron::new(middleware).http(host).unwrap();
}
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