73 lines
2.5 KiB
Rust
73 lines
2.5 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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use std::sync::{Arc, Mutex};
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use hyper;
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use ethcore_rpc::{Metadata, Origin};
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use jsonrpc_core::reactor::RpcHandler;
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use jsonrpc_http_server::{Rpc, ServerHandler, PanicHandler, AccessControlAllowOrigin, HttpMetaExtractor};
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use endpoint::{Endpoint, EndpointPath, Handler};
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pub fn rpc(handler: RpcHandler<Metadata>, panic_handler: Arc<Mutex<Option<Box<Fn() -> () + Send>>>>) -> Box<Endpoint> {
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Box::new(RpcEndpoint {
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handler: handler,
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meta_extractor: Arc::new(MetadataExtractor),
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panic_handler: panic_handler,
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cors_domain: None,
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// NOTE [ToDr] We don't need to do any hosts validation here. It's already done in router.
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allowed_hosts: None,
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})
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}
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struct RpcEndpoint {
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handler: RpcHandler<Metadata>,
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meta_extractor: Arc<HttpMetaExtractor<Metadata>>,
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panic_handler: Arc<Mutex<Option<Box<Fn() -> () + Send>>>>,
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cors_domain: Option<Vec<AccessControlAllowOrigin>>,
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allowed_hosts: Option<Vec<String>>,
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}
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impl Endpoint for RpcEndpoint {
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fn to_async_handler(&self, _path: EndpointPath, control: hyper::Control) -> Box<Handler> {
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let panic_handler = PanicHandler { handler: self.panic_handler.clone() };
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Box::new(ServerHandler::new(
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Rpc::new(self.handler.clone(), self.meta_extractor.clone()),
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self.cors_domain.clone(),
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self.allowed_hosts.clone(),
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panic_handler,
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control,
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))
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}
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}
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struct MetadataExtractor;
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impl HttpMetaExtractor<Metadata> for MetadataExtractor {
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fn read_metadata(&self, request: &hyper::server::Request<hyper::net::HttpStream>) -> Metadata {
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let dapp_id = request.headers().get::<hyper::header::Referer>()
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.and_then(|referer| hyper::Url::parse(referer).ok())
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.and_then(|url| {
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url.path_segments()
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.and_then(|mut split| split.next())
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.map(|app_id| app_id.to_owned())
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});
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Metadata {
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dapp_id: dapp_id,
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origin: Origin::Dapps,
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}
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}
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}
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