hyper_http_proxy/
stream.rs

1use std::io;
2use std::pin::Pin;
3use std::task::{Context, Poll};
4
5use hyper::rt::{Read, ReadBufCursor, Write};
6use hyper_util::client::legacy::connect::{Connected, Connection};
7
8#[cfg(feature = "__tls")]
9use hyper_util::rt::TokioIo;
10
11#[cfg(feature = "__rustls")]
12use tokio_rustls::client::TlsStream as RustlsStream;
13
14#[cfg(all(not(feature = "__rustls"), feature = "native-tls"))]
15use tokio_native_tls::TlsStream as TokioNativeTlsStream;
16
17#[cfg(feature = "__rustls")]
18pub type TlsStream<R> = TokioIo<RustlsStream<TokioIo<R>>>;
19
20#[cfg(all(not(feature = "__rustls"), feature = "native-tls"))]
21pub type TlsStream<R> = TokioIo<TokioNativeTlsStream<TokioIo<R>>>;
22
23/// A Proxy Stream wrapper
24pub enum ProxyStream<R> {
25    NoProxy(R),
26    Regular(R),
27    #[cfg(feature = "__tls")]
28    Secured(Box<TlsStream<R>>),
29}
30
31macro_rules! match_fn_pinned {
32    ($self:expr, $fn:ident, $ctx:expr, $buf:expr) => {
33        match $self.get_mut() {
34            ProxyStream::NoProxy(s) => Pin::new(s).$fn($ctx, $buf),
35            ProxyStream::Regular(s) => Pin::new(s).$fn($ctx, $buf),
36            #[cfg(feature = "__tls")]
37            ProxyStream::Secured(s) => Pin::new(s).$fn($ctx, $buf),
38        }
39    };
40
41    ($self:expr, $fn:ident, $ctx:expr) => {
42        match $self.get_mut() {
43            ProxyStream::NoProxy(s) => Pin::new(s).$fn($ctx),
44            ProxyStream::Regular(s) => Pin::new(s).$fn($ctx),
45            #[cfg(feature = "__tls")]
46            ProxyStream::Secured(s) => Pin::new(s).$fn($ctx),
47        }
48    };
49}
50
51impl<R: Read + Write + Unpin> Read for ProxyStream<R> {
52    fn poll_read(
53        self: Pin<&mut Self>,
54        cx: &mut Context<'_>,
55        buf: ReadBufCursor<'_>,
56    ) -> Poll<io::Result<()>> {
57        match_fn_pinned!(self, poll_read, cx, buf)
58    }
59}
60
61impl<R: Read + Write + Unpin> Write for ProxyStream<R> {
62    fn poll_write(
63        self: Pin<&mut Self>,
64        cx: &mut Context<'_>,
65        buf: &[u8],
66    ) -> Poll<io::Result<usize>> {
67        match_fn_pinned!(self, poll_write, cx, buf)
68    }
69
70    fn poll_write_vectored(
71        self: Pin<&mut Self>,
72        cx: &mut Context<'_>,
73        bufs: &[io::IoSlice<'_>],
74    ) -> Poll<Result<usize, io::Error>> {
75        match_fn_pinned!(self, poll_write_vectored, cx, bufs)
76    }
77
78    fn is_write_vectored(&self) -> bool {
79        match self {
80            ProxyStream::NoProxy(s) => s.is_write_vectored(),
81            ProxyStream::Regular(s) => s.is_write_vectored(),
82            #[cfg(feature = "__tls")]
83            ProxyStream::Secured(s) => s.is_write_vectored(),
84        }
85    }
86
87    fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
88        match_fn_pinned!(self, poll_flush, cx)
89    }
90
91    fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
92        match_fn_pinned!(self, poll_shutdown, cx)
93    }
94}
95
96impl<R: Read + Write + Connection + Unpin> Connection for ProxyStream<R> {
97    fn connected(&self) -> Connected {
98        match self {
99            ProxyStream::NoProxy(s) => s.connected(),
100
101            ProxyStream::Regular(s) => s.connected().proxy(true),
102            #[cfg(all(not(feature = "__rustls"), feature = "native-tls"))]
103            ProxyStream::Secured(s) => s
104                .inner()
105                .get_ref()
106                .get_ref()
107                .get_ref()
108                .inner()
109                .connected()
110                .proxy(true),
111
112            #[cfg(feature = "__rustls")]
113            ProxyStream::Secured(s) => s.inner().get_ref().0.inner().connected().proxy(true),
114        }
115    }
116}
hyper_http_proxy/stream.rs

hyper_http_proxy/
stream.rs
