openethereum/util/fake-fetch/src/lib.rs

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// Copyright 2015-2018 Parity Technologies (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/>.
extern crate fetch;
extern crate hyper;
extern crate futures;
use hyper::StatusCode;
use futures::{future, future::FutureResult};
use fetch::{Fetch, Url, Request};
#[derive(Clone, Default)]
pub struct FakeFetch<T> where T: Clone + Send + Sync {
val: Option<T>,
}
impl<T> FakeFetch<T> where T: Clone + Send + Sync {
pub fn new(t: Option<T>) -> Self {
FakeFetch { val : t }
}
}
impl<T: 'static> Fetch for FakeFetch<T> where T: Clone + Send+ Sync {
type Result = FutureResult<fetch::Response, fetch::Error>;
fn fetch(&self, request: Request, abort: fetch::Abort) -> Self::Result {
let u = request.url().clone();
future::ok(if self.val.is_some() {
let r = hyper::Response::new().with_body(&b"Some content"[..]);
fetch::client::Response::new(u, r, abort)
} else {
fetch::client::Response::new(u, hyper::Response::new().with_status(StatusCode::NotFound), abort)
})
}
fn get(&self, url: &str, abort: fetch::Abort) -> Self::Result {
let url: Url = match url.parse() {
Ok(u) => u,
Err(e) => return future::err(e.into())
};
self.fetch(Request::get(url), abort)
}
fn post(&self, url: &str, abort: fetch::Abort) -> Self::Result {
let url: Url = match url.parse() {
Ok(u) => u,
Err(e) => return future::err(e.into())
};
self.fetch(Request::post(url), abort)
}
}