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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use hyper::client::Pool;
use hyper::net::{HttpStream, HttpsConnector, SslClient};
use openssl::ssl::{SSL_OP_NO_COMPRESSION, SSL_OP_NO_SSLV2, SSL_OP_NO_SSLV3, SSL_VERIFY_PEER};
use openssl::ssl::{Ssl, SslContext, SslMethod, SslStream};
use std::sync::Arc;
use util::resource_files::resources_dir_path;
pub type Connector = HttpsConnector<ServoSslClient>;
// The basic logic here is to prefer ciphers with ECDSA certificates, Forward
// Secrecy, AES GCM ciphers, AES ciphers, and finally 3DES ciphers.
// A complete discussion of the issues involved in TLS configuration can be found here:
// https://wiki.mozilla.org/Security/Server_Side_TLS
const DEFAULT_CIPHERS: &'static str = concat!(
"ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:",
"ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:",
"DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:",
"ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:",
"ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA:",
"ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:",
"DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-RSA-DES-CBC3-SHA:",
"ECDHE-ECDSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:",
"AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA"
);
pub fn create_http_connector() -> Arc<Pool<Connector>> {
let mut context = SslContext::new(SslMethod::Sslv23).unwrap();
context.set_CA_file(&resources_dir_path()
.expect("Need certificate file to make network requests")
.join("certs")).unwrap();
context.set_cipher_list(DEFAULT_CIPHERS).unwrap();
context.set_options(SSL_OP_NO_SSLV2 | SSL_OP_NO_SSLV3 | SSL_OP_NO_COMPRESSION);
let connector = HttpsConnector::new(ServoSslClient {
context: Arc::new(context)
});
Arc::new(Pool::with_connector(Default::default(), connector))
}
pub struct ServoSslClient {
context: Arc<SslContext>,
}
impl SslClient for ServoSslClient {
type Stream = SslStream<HttpStream>;
fn wrap_client(&self, stream: HttpStream, host: &str) -> Result<Self::Stream, ::hyper::Error> {
let mut ssl = try!(Ssl::new(&self.context));
try!(ssl.set_hostname(host));
let host = host.to_owned();
ssl.set_verify_callback(SSL_VERIFY_PEER, move |p, x| {
::openssl_verify::verify_callback(&host, p, x)
});
SslStream::connect(ssl, stream).map_err(From::from)
}
}
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