openethereum/dapps/src/handlers/content.rs

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// Copyright 2015-2017 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/>.
//! Simple Content Handler
use hyper::{self, mime, header};
use hyper::StatusCode;
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use util::version;
use handlers::add_security_headers;
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use Embeddable;
#[derive(Debug, Clone)]
pub struct ContentHandler {
code: StatusCode,
content: String,
mimetype: mime::Mime,
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safe_to_embed_on: Embeddable,
}
impl ContentHandler {
pub fn ok(content: String, mimetype: mime::Mime) -> Self {
Self::new(StatusCode::Ok, content, mimetype)
}
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pub fn html(code: StatusCode, content: String, embeddable_on: Embeddable) -> Self {
Self::new_embeddable(code, content, mime::TEXT_HTML, embeddable_on)
}
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pub fn error(
code: StatusCode,
title: &str,
message: &str,
details: Option<&str>,
embeddable_on: Embeddable,
) -> Self {
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Self::html(code, format!(
include_str!("../error_tpl.html"),
title=title,
message=message,
details=details.unwrap_or_else(|| ""),
version=version(),
), embeddable_on)
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}
pub fn new(code: StatusCode, content: String, mimetype: mime::Mime) -> Self {
Self::new_embeddable(code, content, mimetype, None)
}
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pub fn new_embeddable(
code: StatusCode,
content: String,
mimetype: mime::Mime,
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safe_to_embed_on: Embeddable,
) -> Self {
ContentHandler {
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code,
content,
mimetype,
safe_to_embed_on,
}
}
}
impl Into<hyper::Response> for ContentHandler {
fn into(self) -> hyper::Response {
let mut res = hyper::Response::new()
.with_status(self.code)
.with_header(header::ContentType(self.mimetype))
.with_body(self.content);
add_security_headers(&mut res.headers_mut(), self.safe_to_embed_on);
res
}
}