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use std::io;
use std::task::{Context, Poll};
use futures::future::{ok, FutureExt, LocalBoxFuture, Ready};
pub use open_ssl::ssl::{Error as SslError, SslConnector, SslMethod};
pub use tokio_openssl::{HandshakeError, SslStream};
use crate::rt::net::TcpStream;
use crate::service::{Service, ServiceFactory};
use super::{Address, AsyncResolver, Connect, ConnectError, Connector};
pub struct OpensslConnector<T> {
connector: Connector<T>,
openssl: SslConnector,
}
impl<T> OpensslConnector<T> {
pub fn new(connector: SslConnector) -> Self {
OpensslConnector {
connector: Connector::default(),
openssl: connector,
}
}
pub fn with_resolver(connector: SslConnector, resolver: AsyncResolver) -> Self {
OpensslConnector {
connector: Connector::new(resolver),
openssl: connector,
}
}
}
impl<T> Clone for OpensslConnector<T> {
fn clone(&self) -> Self {
OpensslConnector {
connector: self.connector.clone(),
openssl: self.openssl.clone(),
}
}
}
impl<T: Address + 'static> ServiceFactory for OpensslConnector<T> {
type Request = Connect<T>;
type Response = SslStream<TcpStream>;
type Error = ConnectError;
type Config = ();
type Service = OpensslConnector<T>;
type InitError = ();
type Future = Ready<Result<Self::Service, Self::InitError>>;
fn new_service(&self, _: ()) -> Self::Future {
ok(self.clone())
}
}
impl<T: Address + 'static> Service for OpensslConnector<T> {
type Request = Connect<T>;
type Response = SslStream<TcpStream>;
type Error = ConnectError;
type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
#[inline]
fn poll_ready(&self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
Poll::Ready(Ok(()))
}
fn call(&self, req: Connect<T>) -> Self::Future {
let host = req.host().to_string();
let conn = self.connector.call(req);
let openssl = self.openssl.clone();
async move {
let io = conn.await?;
trace!("SSL Handshake start for: {:?}", host);
match openssl.configure() {
Err(e) => Err(io::Error::new(io::ErrorKind::Other, e).into()),
Ok(config) => match tokio_openssl::connect(config, &host, io).await {
Ok(io) => {
trace!("SSL Handshake success: {:?}", host);
Ok(io)
}
Err(e) => {
trace!("SSL Handshake error: {:?}", e);
Err(io::Error::new(io::ErrorKind::Other, format!("{}", e))
.into())
}
},
}
}
.boxed_local()
}
}