mirror of
https://github.com/mimblewimble/grin.git
synced 2025-01-21 11:31:08 +03:00
77 lines
2.2 KiB
Rust
77 lines
2.2 KiB
Rust
// Copyright 2018 The Grin Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use crate::router::{Handler, HandlerObj, ResponseFuture};
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use crate::web::response;
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use futures::future::ok;
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use hyper::header::{HeaderValue, AUTHORIZATION, WWW_AUTHENTICATE};
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use hyper::{Body, Request, Response, StatusCode};
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use ring::constant_time::verify_slices_are_equal;
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lazy_static! {
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pub static ref GRIN_BASIC_REALM: HeaderValue =
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HeaderValue::from_str("Basic realm=GrinAPI").unwrap();
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}
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// Basic Authentication Middleware
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pub struct BasicAuthMiddleware {
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api_basic_auth: String,
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basic_realm: &'static HeaderValue,
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}
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impl BasicAuthMiddleware {
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pub fn new(api_basic_auth: String, basic_realm: &'static HeaderValue) -> BasicAuthMiddleware {
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BasicAuthMiddleware {
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api_basic_auth,
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basic_realm,
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}
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}
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}
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impl Handler for BasicAuthMiddleware {
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fn call(
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&self,
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req: Request<Body>,
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mut handlers: Box<dyn Iterator<Item = HandlerObj>>,
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) -> ResponseFuture {
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let next_handler = match handlers.next() {
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Some(h) => h,
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None => return response(StatusCode::INTERNAL_SERVER_ERROR, "no handler found"),
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};
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if req.method().as_str() == "OPTIONS" {
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return next_handler.call(req, handlers);
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}
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if req.headers().contains_key(AUTHORIZATION)
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&& verify_slices_are_equal(
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req.headers()[AUTHORIZATION].as_bytes(),
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&self.api_basic_auth.as_bytes(),
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)
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.is_ok()
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{
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next_handler.call(req, handlers)
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} else {
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// Unauthorized 401
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unauthorized_response(&self.basic_realm)
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}
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}
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}
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fn unauthorized_response(basic_realm: &HeaderValue) -> ResponseFuture {
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let response = Response::builder()
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.status(StatusCode::UNAUTHORIZED)
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.header(WWW_AUTHENTICATE, basic_realm)
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.body(Body::empty())
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.unwrap();
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Box::new(ok(response))
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}
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