openethereum/dapps/src/endpoint.rs
Tomasz Drwięga bb1b8cc08a Loading local Dapps from FS. (#1214)
* apps list to separate module

* Preparing to support serving files from disk

* Serving files from disk

* Using dapps path from CLI

* Adding more docs
2016-06-03 11:51:11 +02:00

100 lines
2.5 KiB
Rust

// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
//! URL Endpoint traits
use hyper::status::StatusCode;
use hyper::{header, server, Decoder, Encoder, Next};
use hyper::net::HttpStream;
use std::io::Write;
use std::collections::BTreeMap;
#[derive(Debug, PartialEq, Default, Clone)]
pub struct EndpointPath {
pub app_id: String,
pub host: String,
pub port: u16,
}
#[derive(Debug, PartialEq, Clone)]
pub struct EndpointInfo {
pub name: String,
pub description: String,
pub version: String,
pub author: String,
pub icon_url: String,
}
pub trait Endpoint : Send + Sync {
fn info(&self) -> Option<&EndpointInfo> { None }
fn to_handler(&self, path: EndpointPath) -> Box<server::Handler<HttpStream>>;
}
pub type Endpoints = BTreeMap<String, Box<Endpoint>>;
pub type Handler = server::Handler<HttpStream>;
pub struct ContentHandler {
content: String,
mimetype: String,
write_pos: usize,
}
impl ContentHandler {
pub fn new(content: String, mimetype: String) -> Self {
ContentHandler {
content: content,
mimetype: mimetype,
write_pos: 0
}
}
}
impl server::Handler<HttpStream> for ContentHandler {
fn on_request(&mut self, _request: server::Request) -> Next {
Next::write()
}
fn on_request_readable(&mut self, _decoder: &mut Decoder<HttpStream>) -> Next {
Next::write()
}
fn on_response(&mut self, res: &mut server::Response) -> Next {
res.set_status(StatusCode::Ok);
res.headers_mut().set(header::ContentType(self.mimetype.parse().unwrap()));
Next::write()
}
fn on_response_writable(&mut self, encoder: &mut Encoder<HttpStream>) -> Next {
let bytes = self.content.as_bytes();
if self.write_pos == bytes.len() {
return Next::end();
}
match encoder.write(&bytes[self.write_pos..]) {
Ok(bytes) => {
self.write_pos += bytes;
Next::write()
},
Err(e) => match e.kind() {
::std::io::ErrorKind::WouldBlock => Next::write(),
_ => Next::end()
},
}
}
}