5369a129ae
* Signer - Tracking Request Provenance * Basic UI * Changing messages * VecDeque::from * Fix dapps tests * Addressing UI grumbles
84 lines
3.0 KiB
Rust
84 lines
3.0 KiB
Rust
// 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/>.
|
|
|
|
use std::sync::{Arc, Mutex};
|
|
use hyper;
|
|
|
|
use ethcore_rpc::{Metadata, Origin};
|
|
use jsonrpc_core::Middleware;
|
|
use jsonrpc_core::reactor::RpcHandler;
|
|
use jsonrpc_http_server::{Rpc, ServerHandler, PanicHandler, AccessControlAllowOrigin, HttpMetaExtractor};
|
|
use endpoint::{Endpoint, EndpointPath, Handler};
|
|
|
|
pub fn rpc<T: Middleware<Metadata>>(
|
|
handler: RpcHandler<Metadata, T>,
|
|
cors_domains: Vec<String>,
|
|
panic_handler: Arc<Mutex<Option<Box<Fn() -> () + Send>>>>,
|
|
) -> Box<Endpoint> {
|
|
Box::new(RpcEndpoint {
|
|
handler: handler,
|
|
meta_extractor: Arc::new(MetadataExtractor),
|
|
panic_handler: panic_handler,
|
|
cors_domain: Some(cors_domains.into_iter().map(AccessControlAllowOrigin::Value).collect()),
|
|
// NOTE [ToDr] We don't need to do any hosts validation here. It's already done in router.
|
|
allowed_hosts: None,
|
|
})
|
|
}
|
|
|
|
struct RpcEndpoint<T: Middleware<Metadata>> {
|
|
handler: RpcHandler<Metadata, T>,
|
|
meta_extractor: Arc<HttpMetaExtractor<Metadata>>,
|
|
panic_handler: Arc<Mutex<Option<Box<Fn() -> () + Send>>>>,
|
|
cors_domain: Option<Vec<AccessControlAllowOrigin>>,
|
|
allowed_hosts: Option<Vec<String>>,
|
|
}
|
|
|
|
impl<T: Middleware<Metadata>> Endpoint for RpcEndpoint<T> {
|
|
fn to_async_handler(&self, _path: EndpointPath, control: hyper::Control) -> Box<Handler> {
|
|
let panic_handler = PanicHandler { handler: self.panic_handler.clone() };
|
|
Box::new(ServerHandler::new(
|
|
Rpc::new(self.handler.clone(), self.meta_extractor.clone()),
|
|
self.cors_domain.clone(),
|
|
self.allowed_hosts.clone(),
|
|
panic_handler,
|
|
control,
|
|
))
|
|
}
|
|
}
|
|
|
|
struct MetadataExtractor;
|
|
impl HttpMetaExtractor<Metadata> for MetadataExtractor {
|
|
fn read_metadata(&self, request: &hyper::server::Request<hyper::net::HttpStream>) -> Metadata {
|
|
let dapp_id = request.headers().get::<hyper::header::Origin>()
|
|
.map(|origin| format!("{}://{}", origin.scheme, origin.host))
|
|
.or_else(|| {
|
|
// fallback to custom header, but only if origin is null
|
|
request.headers().get_raw("origin")
|
|
.and_then(|raw| raw.one())
|
|
.and_then(|raw| if raw == "null".as_bytes() {
|
|
request.headers().get_raw("x-parity-origin")
|
|
.and_then(|raw| raw.one())
|
|
.map(|raw| String::from_utf8_lossy(raw).into_owned())
|
|
} else {
|
|
None
|
|
})
|
|
});
|
|
Metadata {
|
|
origin: Origin::Dapps(dapp_id.map(Into::into).unwrap_or_default()),
|
|
}
|
|
}
|
|
}
|