61 lines
1.9 KiB
Rust
61 lines
1.9 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Echo Handler
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use std::io::Read;
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use hyper::{server, Decoder, Encoder, Next};
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use hyper::net::HttpStream;
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use super::ContentHandler;
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#[derive(Default)]
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pub struct EchoHandler {
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content: String,
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handler: Option<ContentHandler>,
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}
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impl server::Handler<HttpStream> for EchoHandler {
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fn on_request(&mut self, _: server::Request<HttpStream>) -> Next {
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Next::read()
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}
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fn on_request_readable(&mut self, decoder: &mut Decoder<HttpStream>) -> Next {
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match decoder.read_to_string(&mut self.content) {
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Ok(0) => {
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self.handler = Some(ContentHandler::ok(self.content.clone(), mime!(Application/Json)));
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Next::write()
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},
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Ok(_) => Next::read(),
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Err(e) => match e.kind() {
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::std::io::ErrorKind::WouldBlock => Next::read(),
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_ => Next::end(),
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}
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}
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}
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fn on_response(&mut self, res: &mut server::Response) -> Next {
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self.handler.as_mut()
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.expect("handler always set in on_request, which is before now; qed")
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.on_response(res)
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}
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fn on_response_writable(&mut self, encoder: &mut Encoder<HttpStream>) -> Next {
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self.handler.as_mut()
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.expect("handler always set in on_request, which is before now; qed")
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.on_response_writable(encoder)
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}
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}
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