http: takeover MaybeTlsStream from proxmox_backup

this is just a (rather HTTP specific) wrapper, so put it into a
'wrapper' module for now.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler 2021-05-14 15:44:42 +02:00 committed by Dietmar Maurer
parent caef9a3b20
commit 6c5028512b
4 changed files with 131 additions and 1 deletions

View File

@ -18,11 +18,13 @@ futures = { version = "0.3", optional = true }
hyper = { version = "0.14", features = [ "full" ], optional = true }
openssl = { version = "0.10", optional = true }
tokio = { version = "1.0", features = [], optional = true }
tokio-openssl = { version = "0.6.1", optional = true }
proxmox = { path = "../proxmox", optional = true, version = "0.11.3", default-features = false }
[features]
default = []
client = []
client = [ "http-helpers" ]
http-helpers = [ "hyper", "tokio/io-util", "tokio-openssl" ]
websocket = [ "base64", "futures", "hyper", "openssl", "proxmox/tokio", "tokio/io-util", "tokio/sync" ]

View File

@ -0,0 +1,3 @@
mod wrapper;
pub use wrapper::MaybeTlsStream;

View File

@ -0,0 +1,122 @@
use std::io;
use std::pin::Pin;
use std::task::{Context, Poll};
use hyper::client::connect::{Connection, Connected};
use tokio::io::{AsyncRead, AsyncWrite, ReadBuf};
use tokio_openssl::SslStream;
/// Asynchronous stream, possibly encrypted and proxied
///
/// Usefule for HTTP client implementations using hyper.
pub enum MaybeTlsStream<S> {
Normal(S),
Proxied(S),
Secured(SslStream<S>),
}
impl<S: AsyncRead + AsyncWrite + Unpin> AsyncRead for MaybeTlsStream<S> {
fn poll_read(
self: Pin<&mut Self>,
cx: &mut Context,
buf: &mut ReadBuf,
) -> Poll<Result<(), io::Error>> {
match self.get_mut() {
MaybeTlsStream::Normal(ref mut s) => {
Pin::new(s).poll_read(cx, buf)
}
MaybeTlsStream::Proxied(ref mut s) => {
Pin::new(s).poll_read(cx, buf)
}
MaybeTlsStream::Secured(ref mut s) => {
Pin::new(s).poll_read(cx, buf)
}
}
}
}
impl<S: AsyncRead + AsyncWrite + Unpin> AsyncWrite for MaybeTlsStream<S> {
fn poll_write(
self: Pin<&mut Self>,
cx: &mut Context,
buf: &[u8],
) -> Poll<Result<usize, io::Error>> {
match self.get_mut() {
MaybeTlsStream::Normal(ref mut s) => {
Pin::new(s).poll_write(cx, buf)
}
MaybeTlsStream::Proxied(ref mut s) => {
Pin::new(s).poll_write(cx, buf)
}
MaybeTlsStream::Secured(ref mut s) => {
Pin::new(s).poll_write(cx, buf)
}
}
}
fn poll_write_vectored(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &[io::IoSlice<'_>],
) -> Poll<Result<usize, io::Error>> {
match self.get_mut() {
MaybeTlsStream::Normal(ref mut s) => {
Pin::new(s).poll_write_vectored(cx, bufs)
}
MaybeTlsStream::Proxied(ref mut s) => {
Pin::new(s).poll_write_vectored(cx, bufs)
}
MaybeTlsStream::Secured(ref mut s) => {
Pin::new(s).poll_write_vectored(cx, bufs)
}
}
}
fn is_write_vectored(&self) -> bool {
match self {
MaybeTlsStream::Normal(s) => s.is_write_vectored(),
MaybeTlsStream::Proxied(s) => s.is_write_vectored(),
MaybeTlsStream::Secured(s) => s.is_write_vectored(),
}
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), io::Error>> {
match self.get_mut() {
MaybeTlsStream::Normal(ref mut s) => {
Pin::new(s).poll_flush(cx)
}
MaybeTlsStream::Proxied(ref mut s) => {
Pin::new(s).poll_flush(cx)
}
MaybeTlsStream::Secured(ref mut s) => {
Pin::new(s).poll_flush(cx)
}
}
}
fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Result<(), io::Error>> {
match self.get_mut() {
MaybeTlsStream::Normal(ref mut s) => {
Pin::new(s).poll_shutdown(cx)
}
MaybeTlsStream::Proxied(ref mut s) => {
Pin::new(s).poll_shutdown(cx)
}
MaybeTlsStream::Secured(ref mut s) => {
Pin::new(s).poll_shutdown(cx)
}
}
}
}
// we need this for the hyper http client
impl <S: Connection + AsyncRead + AsyncWrite + Unpin> Connection for MaybeTlsStream<S>
{
fn connected(&self) -> Connected {
match self {
MaybeTlsStream::Normal(s) => s.connected(),
MaybeTlsStream::Proxied(s) => s.connected().proxy(true),
MaybeTlsStream::Secured(s) => s.get_ref().connected(),
}
}
}

View File

@ -1,2 +1,5 @@
#[cfg(feature = "websocket")]
pub mod websocket;
#[cfg(feature = "http-helpers")]
pub mod http;