| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-rustls-0.22.0/src/client.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>client.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../tokio_rustls/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../tokio_rustls/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use </span><span class="kw">crate</span>::common::IoSession; |
| <span class="kw">use </span>rustls::Session; |
| |
| <span class="doccomment">/// A wrapper around an underlying raw stream which implements the TLS or SSL |
| /// protocol. |
| </span><span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>TlsStream<IO> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) io: IO, |
| <span class="kw">pub</span>(<span class="kw">crate</span>) session: ClientSession, |
| <span class="kw">pub</span>(<span class="kw">crate</span>) state: TlsState, |
| } |
| |
| <span class="kw">impl</span><IO> TlsStream<IO> { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&</span><span class="self">self</span>) -> (<span class="kw-2">&</span>IO, <span class="kw-2">&</span>ClientSession) { |
| (<span class="kw-2">&</span><span class="self">self</span>.io, <span class="kw-2">&</span><span class="self">self</span>.session) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> (<span class="kw-2">&mut </span>IO, <span class="kw-2">&mut </span>ClientSession) { |
| (<span class="kw-2">&mut </span><span class="self">self</span>.io, <span class="kw-2">&mut </span><span class="self">self</span>.session) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -> (IO, ClientSession) { |
| (<span class="self">self</span>.io, <span class="self">self</span>.session) |
| } |
| } |
| |
| <span class="kw">impl</span><IO> IoSession <span class="kw">for </span>TlsStream<IO> { |
| <span class="kw">type </span>Io = IO; |
| <span class="kw">type </span>Session = ClientSession; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>skip_handshake(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.state.is_early_data() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>get_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> (<span class="kw-2">&mut </span>TlsState, <span class="kw-2">&mut </span><span class="self">Self</span>::Io, <span class="kw-2">&mut </span><span class="self">Self</span>::Session) { |
| (<span class="kw-2">&mut </span><span class="self">self</span>.state, <span class="kw-2">&mut </span><span class="self">self</span>.io, <span class="kw-2">&mut </span><span class="self">self</span>.session) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>into_io(<span class="self">self</span>) -> <span class="self">Self</span>::Io { |
| <span class="self">self</span>.io |
| } |
| } |
| |
| <span class="kw">impl</span><IO> AsyncRead <span class="kw">for </span>TlsStream<IO> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Unpin, |
| { |
| <span class="kw">fn </span>poll_read( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<io::Result<()>> { |
| <span class="kw">match </span><span class="self">self</span>.state { |
| <span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span>TlsState::EarlyData(..) => Poll::Pending, |
| TlsState::Stream | TlsState::WriteShutdown => { |
| <span class="kw">let </span>this = <span class="self">self</span>.get_mut(); |
| <span class="kw">let </span><span class="kw-2">mut </span>stream = |
| Stream::new(<span class="kw-2">&mut </span>this.io, <span class="kw-2">&mut </span>this.session).set_eof(!this.state.readable()); |
| <span class="kw">let </span>prev = buf.remaining(); |
| |
| <span class="kw">match </span>stream.as_mut_pin().poll_read(cx, buf) { |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) => { |
| <span class="kw">if </span>prev == buf.remaining() { |
| this.state.shutdown_read(); |
| } |
| |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) |
| } |
| Poll::Ready(<span class="prelude-val">Err</span>(<span class="kw-2">ref </span>e)) <span class="kw">if </span>e.kind() == io::ErrorKind::ConnectionAborted => { |
| this.state.shutdown_read(); |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) |
| } |
| output => output, |
| } |
| } |
| TlsState::ReadShutdown | TlsState::FullyShutdown => Poll::Ready(<span class="prelude-val">Ok</span>(())), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><IO> AsyncWrite <span class="kw">for </span>TlsStream<IO> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Unpin, |
| { |
| <span class="doccomment">/// Note: that it does not guarantee the final data to be sent. |
| /// To be cautious, you must manually call `flush`. |
| </span><span class="kw">fn </span>poll_write( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<io::Result<usize>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.get_mut(); |
| <span class="kw">let </span><span class="kw-2">mut </span>stream = |
| Stream::new(<span class="kw-2">&mut </span>this.io, <span class="kw-2">&mut </span>this.session).set_eof(!this.state.readable()); |
| |
| <span class="attribute">#[allow(clippy::match_single_binding)] |
| </span><span class="kw">match </span>this.state { |
| <span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span>TlsState::EarlyData(<span class="kw-2">ref mut </span>pos, <span class="kw-2">ref mut </span>data) => { |
| <span class="kw">use </span>std::io::Write; |
| |
| <span class="comment">// write early data |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">mut </span>early_data) = stream.session.early_data() { |
| <span class="kw">let </span>len = <span class="kw">match </span>early_data.write(buf) { |
| <span class="prelude-val">Ok</span>(n) => n, |
| <span class="prelude-val">Err</span>(<span class="kw-2">ref </span>err) <span class="kw">if </span>err.kind() == io::ErrorKind::WouldBlock => { |
| <span class="kw">return </span>Poll::Pending |
| } |
| <span class="prelude-val">Err</span>(err) => <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Err</span>(err)), |
| }; |
| <span class="kw">if </span>len != <span class="number">0 </span>{ |
| data.extend_from_slice(<span class="kw-2">&</span>buf[..len]); |
| <span class="kw">return </span>Poll::Ready(<span class="prelude-val">Ok</span>(len)); |
| } |
| } |
| |
| <span class="comment">// complete handshake |
| </span><span class="kw">while </span>stream.session.is_handshaking() { |
| <span class="macro">ready!</span>(stream.handshake(cx))<span class="question-mark">?</span>; |
| } |
| |
| <span class="comment">// write early data (fallback) |
| </span><span class="kw">if </span>!stream.session.is_early_data_accepted() { |
| <span class="kw">while </span><span class="kw-2">*</span>pos < data.len() { |
| <span class="kw">let </span>len = <span class="macro">ready!</span>(stream.as_mut_pin().poll_write(cx, <span class="kw-2">&</span>data[<span class="kw-2">*</span>pos..]))<span class="question-mark">?</span>; |
| <span class="kw-2">*</span>pos += len; |
| } |
| } |
| |
| <span class="comment">// end |
| </span>this.state = TlsState::Stream; |
| stream.as_mut_pin().poll_write(cx, buf) |
| } |
| <span class="kw">_ </span>=> stream.as_mut_pin().poll_write(cx, buf), |
| } |
| } |
| |
| <span class="kw">fn </span>poll_flush(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<io::Result<()>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.get_mut(); |
| <span class="kw">let </span><span class="kw-2">mut </span>stream = |
| Stream::new(<span class="kw-2">&mut </span>this.io, <span class="kw-2">&mut </span>this.session).set_eof(!this.state.readable()); |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span>{ |
| <span class="kw">if let </span>TlsState::EarlyData(<span class="kw-2">ref mut </span>pos, <span class="kw-2">ref mut </span>data) = this.state { |
| <span class="comment">// complete handshake |
| </span><span class="kw">while </span>stream.session.is_handshaking() { |
| <span class="macro">ready!</span>(stream.handshake(cx))<span class="question-mark">?</span>; |
| } |
| |
| <span class="comment">// write early data (fallback) |
| </span><span class="kw">if </span>!stream.session.is_early_data_accepted() { |
| <span class="kw">while </span><span class="kw-2">*</span>pos < data.len() { |
| <span class="kw">let </span>len = <span class="macro">ready!</span>(stream.as_mut_pin().poll_write(cx, <span class="kw-2">&</span>data[<span class="kw-2">*</span>pos..]))<span class="question-mark">?</span>; |
| <span class="kw-2">*</span>pos += len; |
| } |
| } |
| |
| this.state = TlsState::Stream; |
| } |
| } |
| |
| stream.as_mut_pin().poll_flush(cx) |
| } |
| |
| <span class="kw">fn </span>poll_shutdown(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<io::Result<()>> { |
| <span class="kw">if </span><span class="self">self</span>.state.writeable() { |
| <span class="self">self</span>.session.send_close_notify(); |
| <span class="self">self</span>.state.shutdown_write(); |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span>{ |
| <span class="comment">// we skip the handshake |
| </span><span class="kw">if let </span>TlsState::EarlyData(..) = <span class="self">self</span>.state { |
| <span class="kw">return </span>Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.io).poll_shutdown(cx); |
| } |
| } |
| |
| <span class="kw">let </span>this = <span class="self">self</span>.get_mut(); |
| <span class="kw">let </span><span class="kw-2">mut </span>stream = |
| Stream::new(<span class="kw-2">&mut </span>this.io, <span class="kw-2">&mut </span>this.session).set_eof(!this.state.readable()); |
| stream.as_mut_pin().poll_shutdown(cx) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="tokio_rustls" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
