| <!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/reqwest-0.11.18/src/connect.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>connect.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="../../reqwest/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="../../reqwest/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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| <span id="1156">1156</span> |
| </pre><pre class="rust"><code><span class="attribute">#[cfg(feature = <span class="string">"__tls"</span>)] |
| </span><span class="kw">use </span>http::header::HeaderValue; |
| <span class="kw">use </span>http::uri::{Authority, Scheme}; |
| <span class="kw">use </span>http::Uri; |
| <span class="kw">use </span>hyper::client::connect::{Connected, Connection}; |
| <span class="kw">use </span>hyper::service::Service; |
| <span class="attribute">#[cfg(feature = <span class="string">"native-tls-crate"</span>)] |
| </span><span class="kw">use </span>native_tls_crate::{TlsConnector, TlsConnectorBuilder}; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite, ReadBuf}; |
| |
| <span class="kw">use </span>pin_project_lite::pin_project; |
| <span class="kw">use </span>std::future::Future; |
| <span class="kw">use </span>std::io::{<span class="self">self</span>, IoSlice}; |
| <span class="kw">use </span>std::net::IpAddr; |
| <span class="kw">use </span>std::pin::Pin; |
| <span class="kw">use </span>std::sync::Arc; |
| <span class="kw">use </span>std::task::{Context, Poll}; |
| <span class="kw">use </span>std::time::Duration; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span><span class="kw">use </span><span class="self">self</span>::native_tls_conn::NativeTlsConn; |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span><span class="kw">use </span><span class="self">self</span>::rustls_tls_conn::RustlsTlsConn; |
| <span class="kw">use </span><span class="kw">crate</span>::dns::DynResolver; |
| <span class="kw">use </span><span class="kw">crate</span>::error::BoxError; |
| <span class="kw">use </span><span class="kw">crate</span>::proxy::{Proxy, ProxyScheme}; |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">type </span>HttpConnector = hyper::client::HttpConnector<DynResolver>; |
| |
| <span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Connector { |
| inner: Inner, |
| proxies: Arc<Vec<Proxy>>, |
| verbose: verbose::Wrapper, |
| timeout: <span class="prelude-ty">Option</span><Duration>, |
| <span class="attribute">#[cfg(feature = <span class="string">"__tls"</span>)] |
| </span>nodelay: bool, |
| <span class="attribute">#[cfg(feature = <span class="string">"__tls"</span>)] |
| </span>user_agent: <span class="prelude-ty">Option</span><HeaderValue>, |
| } |
| |
| <span class="attribute">#[derive(Clone)] |
| </span><span class="kw">enum </span>Inner { |
| <span class="attribute">#[cfg(not(feature = <span class="string">"__tls"</span>))] |
| </span>Http(HttpConnector), |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span>DefaultTls(HttpConnector, TlsConnector), |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span>RustlsTls { |
| http: HttpConnector, |
| tls: Arc<rustls::ClientConfig>, |
| tls_proxy: Arc<rustls::ClientConfig>, |
| }, |
| } |
| |
| <span class="kw">impl </span>Connector { |
| <span class="attribute">#[cfg(not(feature = <span class="string">"__tls"</span>))] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new<T>( |
| <span class="kw-2">mut </span>http: HttpConnector, |
| proxies: Arc<Vec<Proxy>>, |
| local_addr: T, |
| nodelay: bool, |
| ) -> Connector |
| <span class="kw">where |
| </span>T: Into<<span class="prelude-ty">Option</span><IpAddr>>, |
| { |
| http.set_local_address(local_addr.into()); |
| http.set_nodelay(nodelay); |
| Connector { |
| inner: Inner::Http(http), |
| verbose: verbose::OFF, |
| proxies, |
| timeout: <span class="prelude-val">None</span>, |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new_default_tls<T>( |
| http: HttpConnector, |
| tls: TlsConnectorBuilder, |
| proxies: Arc<Vec<Proxy>>, |
| user_agent: <span class="prelude-ty">Option</span><HeaderValue>, |
| local_addr: T, |
| nodelay: bool, |
| ) -> <span class="kw">crate</span>::Result<Connector> |
| <span class="kw">where |
| </span>T: Into<<span class="prelude-ty">Option</span><IpAddr>>, |
| { |
| <span class="kw">let </span>tls = tls.build().map_err(<span class="kw">crate</span>::error::builder)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_built_default_tls( |
| http, tls, proxies, user_agent, local_addr, nodelay, |
| )) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>from_built_default_tls<T>( |
| <span class="kw-2">mut </span>http: HttpConnector, |
| tls: TlsConnector, |
| proxies: Arc<Vec<Proxy>>, |
| user_agent: <span class="prelude-ty">Option</span><HeaderValue>, |
| local_addr: T, |
| nodelay: bool, |
| ) -> Connector |
| <span class="kw">where |
| </span>T: Into<<span class="prelude-ty">Option</span><IpAddr>>, |
| { |
| http.set_local_address(local_addr.into()); |
| http.enforce_http(<span class="bool-val">false</span>); |
| |
| Connector { |
| inner: Inner::DefaultTls(http, tls), |
| proxies, |
| verbose: verbose::OFF, |
| timeout: <span class="prelude-val">None</span>, |
| nodelay, |
| user_agent, |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new_rustls_tls<T>( |
| <span class="kw-2">mut </span>http: HttpConnector, |
| tls: rustls::ClientConfig, |
| proxies: Arc<Vec<Proxy>>, |
| user_agent: <span class="prelude-ty">Option</span><HeaderValue>, |
| local_addr: T, |
| nodelay: bool, |
| ) -> Connector |
| <span class="kw">where |
| </span>T: Into<<span class="prelude-ty">Option</span><IpAddr>>, |
| { |
| http.set_local_address(local_addr.into()); |
| http.enforce_http(<span class="bool-val">false</span>); |
| |
| <span class="kw">let </span>(tls, tls_proxy) = <span class="kw">if </span>proxies.is_empty() { |
| <span class="kw">let </span>tls = Arc::new(tls); |
| (tls.clone(), tls) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span><span class="kw-2">mut </span>tls_proxy = tls.clone(); |
| tls_proxy.alpn_protocols.clear(); |
| (Arc::new(tls), Arc::new(tls_proxy)) |
| }; |
| |
| Connector { |
| inner: Inner::RustlsTls { |
| http, |
| tls, |
| tls_proxy, |
| }, |
| proxies, |
| verbose: verbose::OFF, |
| timeout: <span class="prelude-val">None</span>, |
| nodelay, |
| user_agent, |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_timeout(<span class="kw-2">&mut </span><span class="self">self</span>, timeout: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="self">self</span>.timeout = timeout; |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_verbose(<span class="kw-2">&mut </span><span class="self">self</span>, enabled: bool) { |
| <span class="self">self</span>.verbose.<span class="number">0 </span>= enabled; |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"socks"</span>)] |
| </span><span class="kw">async fn </span>connect_socks(<span class="kw-2">&</span><span class="self">self</span>, dst: Uri, proxy: ProxyScheme) -> <span class="prelude-ty">Result</span><Conn, BoxError> { |
| <span class="kw">let </span>dns = <span class="kw">match </span>proxy { |
| ProxyScheme::Socks5 { |
| remote_dns: <span class="bool-val">false</span>, .. |
| } => socks::DnsResolve::Local, |
| ProxyScheme::Socks5 { |
| remote_dns: <span class="bool-val">true</span>, .. |
| } => socks::DnsResolve::Proxy, |
| ProxyScheme::Http { .. } | ProxyScheme::Https { .. } => { |
| <span class="macro">unreachable!</span>(<span class="string">"connect_socks is only called for socks proxies"</span>); |
| } |
| }; |
| |
| <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.inner { |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span>Inner::DefaultTls(_http, tls) => { |
| <span class="kw">if </span>dst.scheme() == <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Scheme::HTTPS) { |
| <span class="kw">let </span>host = dst.host().ok_or(<span class="string">"no host in url"</span>)<span class="question-mark">?</span>.to_string(); |
| <span class="kw">let </span>conn = socks::connect(proxy, dst, dns).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>tls_connector = tokio_native_tls::TlsConnector::from(tls.clone()); |
| <span class="kw">let </span>io = tls_connector.connect(<span class="kw-2">&</span>host, conn).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(NativeTlsConn { inner: io }), |
| is_proxy: <span class="bool-val">false</span>, |
| }); |
| } |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span>Inner::RustlsTls { tls_proxy, .. } => { |
| <span class="kw">if </span>dst.scheme() == <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Scheme::HTTPS) { |
| <span class="kw">use </span>std::convert::TryFrom; |
| <span class="kw">use </span>tokio_rustls::TlsConnector <span class="kw">as </span>RustlsConnector; |
| |
| <span class="kw">let </span>tls = tls_proxy.clone(); |
| <span class="kw">let </span>host = dst.host().ok_or(<span class="string">"no host in url"</span>)<span class="question-mark">?</span>.to_string(); |
| <span class="kw">let </span>conn = socks::connect(proxy, dst, dns).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>server_name = rustls::ServerName::try_from(host.as_str()) |
| .map_err(|<span class="kw">_</span>| <span class="string">"Invalid Server Name"</span>)<span class="question-mark">?</span>; |
| <span class="kw">let </span>io = RustlsConnector::from(tls) |
| .connect(server_name, conn) |
| .<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(RustlsTlsConn { inner: io }), |
| is_proxy: <span class="bool-val">false</span>, |
| }); |
| } |
| } |
| <span class="attribute">#[cfg(not(feature = <span class="string">"__tls"</span>))] |
| </span>Inner::Http(<span class="kw">_</span>) => (), |
| } |
| |
| socks::connect(proxy, dst, dns).<span class="kw">await</span>.map(|tcp| Conn { |
| inner: <span class="self">self</span>.verbose.wrap(tcp), |
| is_proxy: <span class="bool-val">false</span>, |
| }) |
| } |
| |
| <span class="kw">async fn </span>connect_with_maybe_proxy(<span class="self">self</span>, dst: Uri, is_proxy: bool) -> <span class="prelude-ty">Result</span><Conn, BoxError> { |
| <span class="kw">match </span><span class="self">self</span>.inner { |
| <span class="attribute">#[cfg(not(feature = <span class="string">"__tls"</span>))] |
| </span>Inner::Http(<span class="kw-2">mut </span>http) => { |
| <span class="kw">let </span>io = http.call(dst).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(io), |
| is_proxy, |
| }) |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span>Inner::DefaultTls(http, tls) => { |
| <span class="kw">let </span><span class="kw-2">mut </span>http = http.clone(); |
| |
| <span class="comment">// Disable Nagle's algorithm for TLS handshake |
| // |
| // https://www.openssl.org/docs/man1.1.1/man3/SSL_connect.html#NOTES |
| </span><span class="kw">if </span>!<span class="self">self</span>.nodelay && (dst.scheme() == <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Scheme::HTTPS)) { |
| http.set_nodelay(<span class="bool-val">true</span>); |
| } |
| |
| <span class="kw">let </span>tls_connector = tokio_native_tls::TlsConnector::from(tls.clone()); |
| <span class="kw">let </span><span class="kw-2">mut </span>http = hyper_tls::HttpsConnector::from((http, tls_connector)); |
| <span class="kw">let </span>io = http.call(dst).<span class="kw">await</span><span class="question-mark">?</span>; |
| |
| <span class="kw">if let </span>hyper_tls::MaybeHttpsStream::Https(stream) = io { |
| <span class="kw">if </span>!<span class="self">self</span>.nodelay { |
| stream.get_ref().get_ref().get_ref().set_nodelay(<span class="bool-val">false</span>)<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(NativeTlsConn { inner: stream }), |
| is_proxy, |
| }) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(io), |
| is_proxy, |
| }) |
| } |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span>Inner::RustlsTls { http, tls, .. } => { |
| <span class="kw">let </span><span class="kw-2">mut </span>http = http.clone(); |
| |
| <span class="comment">// Disable Nagle's algorithm for TLS handshake |
| // |
| // https://www.openssl.org/docs/man1.1.1/man3/SSL_connect.html#NOTES |
| </span><span class="kw">if </span>!<span class="self">self</span>.nodelay && (dst.scheme() == <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Scheme::HTTPS)) { |
| http.set_nodelay(<span class="bool-val">true</span>); |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>http = hyper_rustls::HttpsConnector::from((http, tls.clone())); |
| <span class="kw">let </span>io = http.call(dst).<span class="kw">await</span><span class="question-mark">?</span>; |
| |
| <span class="kw">if let </span>hyper_rustls::MaybeHttpsStream::Https(stream) = io { |
| <span class="kw">if </span>!<span class="self">self</span>.nodelay { |
| <span class="kw">let </span>(io, <span class="kw">_</span>) = stream.get_ref(); |
| io.set_nodelay(<span class="bool-val">false</span>)<span class="question-mark">?</span>; |
| } |
| <span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(RustlsTlsConn { inner: stream }), |
| is_proxy, |
| }) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(io), |
| is_proxy, |
| }) |
| } |
| } |
| } |
| } |
| |
| <span class="kw">async fn </span>connect_via_proxy( |
| <span class="self">self</span>, |
| dst: Uri, |
| proxy_scheme: ProxyScheme, |
| ) -> <span class="prelude-ty">Result</span><Conn, BoxError> { |
| <span class="macro">log::debug!</span>(<span class="string">"proxy({:?}) intercepts '{:?}'"</span>, proxy_scheme, dst); |
| |
| <span class="kw">let </span>(proxy_dst, _auth) = <span class="kw">match </span>proxy_scheme { |
| ProxyScheme::Http { host, auth } => (into_uri(Scheme::HTTP, host), auth), |
| ProxyScheme::Https { host, auth } => (into_uri(Scheme::HTTPS, host), auth), |
| <span class="attribute">#[cfg(feature = <span class="string">"socks"</span>)] |
| </span>ProxyScheme::Socks5 { .. } => <span class="kw">return </span><span class="self">self</span>.connect_socks(dst, proxy_scheme).<span class="kw">await</span>, |
| }; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"__tls"</span>)] |
| </span><span class="kw">let </span>auth = _auth; |
| |
| <span class="kw">match </span><span class="kw-2">&</span><span class="self">self</span>.inner { |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span>Inner::DefaultTls(http, tls) => { |
| <span class="kw">if </span>dst.scheme() == <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Scheme::HTTPS) { |
| <span class="kw">let </span>host = dst.host().to_owned(); |
| <span class="kw">let </span>port = dst.port().map(|p| p.as_u16()).unwrap_or(<span class="number">443</span>); |
| <span class="kw">let </span>http = http.clone(); |
| <span class="kw">let </span>tls_connector = tokio_native_tls::TlsConnector::from(tls.clone()); |
| <span class="kw">let </span><span class="kw-2">mut </span>http = hyper_tls::HttpsConnector::from((http, tls_connector)); |
| <span class="kw">let </span>conn = http.call(proxy_dst).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="macro">log::trace!</span>(<span class="string">"tunneling HTTPS over proxy"</span>); |
| <span class="kw">let </span>tunneled = tunnel( |
| conn, |
| host.ok_or(<span class="string">"no host in url"</span>)<span class="question-mark">?</span>.to_string(), |
| port, |
| <span class="self">self</span>.user_agent.clone(), |
| auth, |
| ) |
| .<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>tls_connector = tokio_native_tls::TlsConnector::from(tls.clone()); |
| <span class="kw">let </span>io = tls_connector |
| .connect(host.ok_or(<span class="string">"no host in url"</span>)<span class="question-mark">?</span>, tunneled) |
| .<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(NativeTlsConn { inner: io }), |
| is_proxy: <span class="bool-val">false</span>, |
| }); |
| } |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span>Inner::RustlsTls { |
| http, |
| tls, |
| tls_proxy, |
| } => { |
| <span class="kw">if </span>dst.scheme() == <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Scheme::HTTPS) { |
| <span class="kw">use </span>rustls::ServerName; |
| <span class="kw">use </span>std::convert::TryFrom; |
| <span class="kw">use </span>tokio_rustls::TlsConnector <span class="kw">as </span>RustlsConnector; |
| |
| <span class="kw">let </span>host = dst.host().ok_or(<span class="string">"no host in url"</span>)<span class="question-mark">?</span>.to_string(); |
| <span class="kw">let </span>port = dst.port().map(|r| r.as_u16()).unwrap_or(<span class="number">443</span>); |
| <span class="kw">let </span>http = http.clone(); |
| <span class="kw">let </span><span class="kw-2">mut </span>http = hyper_rustls::HttpsConnector::from((http, tls_proxy.clone())); |
| <span class="kw">let </span>tls = tls.clone(); |
| <span class="kw">let </span>conn = http.call(proxy_dst).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="macro">log::trace!</span>(<span class="string">"tunneling HTTPS over proxy"</span>); |
| <span class="kw">let </span>maybe_server_name = |
| ServerName::try_from(host.as_str()).map_err(|<span class="kw">_</span>| <span class="string">"Invalid Server Name"</span>); |
| <span class="kw">let </span>tunneled = tunnel(conn, host, port, <span class="self">self</span>.user_agent.clone(), auth).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>server_name = maybe_server_name<span class="question-mark">?</span>; |
| <span class="kw">let </span>io = RustlsConnector::from(tls) |
| .connect(server_name, tunneled) |
| .<span class="kw">await</span><span class="question-mark">?</span>; |
| |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(Conn { |
| inner: <span class="self">self</span>.verbose.wrap(RustlsTlsConn { inner: io }), |
| is_proxy: <span class="bool-val">false</span>, |
| }); |
| } |
| } |
| <span class="attribute">#[cfg(not(feature = <span class="string">"__tls"</span>))] |
| </span>Inner::Http(<span class="kw">_</span>) => (), |
| } |
| |
| <span class="self">self</span>.connect_with_maybe_proxy(proxy_dst, <span class="bool-val">true</span>).<span class="kw">await |
| </span>} |
| |
| <span class="kw">pub fn </span>set_keepalive(<span class="kw-2">&mut </span><span class="self">self</span>, dur: <span class="prelude-ty">Option</span><Duration>) { |
| <span class="kw">match </span><span class="kw-2">&mut </span><span class="self">self</span>.inner { |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span>Inner::DefaultTls(http, _tls) => http.set_keepalive(dur), |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span>Inner::RustlsTls { http, .. } => http.set_keepalive(dur), |
| <span class="attribute">#[cfg(not(feature = <span class="string">"__tls"</span>))] |
| </span>Inner::Http(http) => http.set_keepalive(dur), |
| } |
| } |
| } |
| |
| <span class="kw">fn </span>into_uri(scheme: Scheme, host: Authority) -> Uri { |
| <span class="comment">// TODO: Should the `http` crate get `From<(Scheme, Authority)> for Uri`? |
| </span>http::Uri::builder() |
| .scheme(scheme) |
| .authority(host) |
| .path_and_query(http::uri::PathAndQuery::from_static(<span class="string">"/"</span>)) |
| .build() |
| .expect(<span class="string">"scheme and authority is valid Uri"</span>) |
| } |
| |
| <span class="kw">async fn </span>with_timeout<T, F>(f: F, timeout: <span class="prelude-ty">Option</span><Duration>) -> <span class="prelude-ty">Result</span><T, BoxError> |
| <span class="kw">where |
| </span>F: Future<Output = <span class="prelude-ty">Result</span><T, BoxError>>, |
| { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(to) = timeout { |
| <span class="kw">match </span>tokio::time::timeout(to, f).<span class="kw">await </span>{ |
| <span class="prelude-val">Err</span>(_elapsed) => <span class="prelude-val">Err</span>(Box::new(<span class="kw">crate</span>::error::TimedOut) <span class="kw">as </span>BoxError), |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Ok</span>(try_res)) => <span class="prelude-val">Ok</span>(try_res), |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Err</span>(e)) => <span class="prelude-val">Err</span>(e), |
| } |
| } <span class="kw">else </span>{ |
| f.<span class="kw">await |
| </span>} |
| } |
| |
| <span class="kw">impl </span>Service<Uri> <span class="kw">for </span>Connector { |
| <span class="kw">type </span>Response = Conn; |
| <span class="kw">type </span>Error = BoxError; |
| <span class="kw">type </span>Future = Connecting; |
| |
| <span class="kw">fn </span>poll_ready(<span class="kw-2">&mut </span><span class="self">self</span>, _cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<<span class="prelude-ty">Result</span><(), <span class="self">Self</span>::Error>> { |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) |
| } |
| |
| <span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, dst: Uri) -> <span class="self">Self</span>::Future { |
| <span class="macro">log::debug!</span>(<span class="string">"starting new connection: {:?}"</span>, dst); |
| <span class="kw">let </span>timeout = <span class="self">self</span>.timeout; |
| <span class="kw">for </span>prox <span class="kw">in </span><span class="self">self</span>.proxies.iter() { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(proxy_scheme) = prox.intercept(<span class="kw-2">&</span>dst) { |
| <span class="kw">return </span>Box::pin(with_timeout( |
| <span class="self">self</span>.clone().connect_via_proxy(dst, proxy_scheme), |
| timeout, |
| )); |
| } |
| } |
| |
| Box::pin(with_timeout( |
| <span class="self">self</span>.clone().connect_with_maybe_proxy(dst, <span class="bool-val">false</span>), |
| timeout, |
| )) |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait </span>AsyncConn: |
| AsyncRead + AsyncWrite + Connection + Send + Sync + Unpin + <span class="lifetime">'static |
| </span>{ |
| } |
| |
| <span class="kw">impl</span><T: AsyncRead + AsyncWrite + Connection + Send + Sync + Unpin + <span class="lifetime">'static</span>> AsyncConn <span class="kw">for </span>T {} |
| |
| <span class="kw">type </span>BoxConn = Box<<span class="kw">dyn </span>AsyncConn>; |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="doccomment">/// Note: the `is_proxy` member means *is plain text HTTP proxy*. |
| /// This tells hyper whether the URI should be written in |
| /// * origin-form (`GET /just/a/path HTTP/1.1`), when `is_proxy == false`, or |
| /// * absolute-form (`GET http://foo.bar/and/a/path HTTP/1.1`), otherwise. |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Conn { |
| <span class="attribute">#[pin] |
| </span>inner: BoxConn, |
| is_proxy: bool, |
| } |
| } |
| |
| <span class="kw">impl </span>Connection <span class="kw">for </span>Conn { |
| <span class="kw">fn </span>connected(<span class="kw-2">&</span><span class="self">self</span>) -> Connected { |
| <span class="self">self</span>.inner.connected().proxy(<span class="self">self</span>.is_proxy) |
| } |
| } |
| |
| <span class="kw">impl </span>AsyncRead <span class="kw">for </span>Conn { |
| <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, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<io::Result<()>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncRead::poll_read(this.inner, cx, buf) |
| } |
| } |
| |
| <span class="kw">impl </span>AsyncWrite <span class="kw">for </span>Conn { |
| <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, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_write(this.inner, cx, buf) |
| } |
| |
| <span class="kw">fn </span>poll_write_vectored( |
| <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>>, |
| bufs: <span class="kw-2">&</span>[IoSlice<<span class="lifetime">'_</span>>], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_write_vectored(this.inner, cx, bufs) |
| } |
| |
| <span class="kw">fn </span>is_write_vectored(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.inner.is_write_vectored() |
| } |
| |
| <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) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_flush(this.inner, cx) |
| } |
| |
| <span class="kw">fn </span>poll_shutdown(<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) -> Poll<<span class="prelude-ty">Result</span><(), io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_shutdown(this.inner, cx) |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">type </span>Connecting = Pin<Box<<span class="kw">dyn </span>Future<Output = <span class="prelude-ty">Result</span><Conn, BoxError>> + Send>>; |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"__tls"</span>)] |
| </span><span class="kw">async fn </span>tunnel<T>( |
| <span class="kw-2">mut </span>conn: T, |
| host: String, |
| port: u16, |
| user_agent: <span class="prelude-ty">Option</span><HeaderValue>, |
| auth: <span class="prelude-ty">Option</span><HeaderValue>, |
| ) -> <span class="prelude-ty">Result</span><T, BoxError> |
| <span class="kw">where |
| </span>T: AsyncRead + AsyncWrite + Unpin, |
| { |
| <span class="kw">use </span>tokio::io::{AsyncReadExt, AsyncWriteExt}; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = <span class="macro">format!</span>( |
| <span class="string">"\ |
| CONNECT {0}:{1} HTTP/1.1\r\n\ |
| Host: {0}:{1}\r\n\ |
| "</span>, |
| host, port |
| ) |
| .into_bytes(); |
| |
| <span class="comment">// user-agent |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>(user_agent) = user_agent { |
| buf.extend_from_slice(<span class="string">b"User-Agent: "</span>); |
| buf.extend_from_slice(user_agent.as_bytes()); |
| buf.extend_from_slice(<span class="string">b"\r\n"</span>); |
| } |
| |
| <span class="comment">// proxy-authorization |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>(value) = auth { |
| <span class="macro">log::debug!</span>(<span class="string">"tunnel to {}:{} using basic auth"</span>, host, port); |
| buf.extend_from_slice(<span class="string">b"Proxy-Authorization: "</span>); |
| buf.extend_from_slice(value.as_bytes()); |
| buf.extend_from_slice(<span class="string">b"\r\n"</span>); |
| } |
| |
| <span class="comment">// headers end |
| </span>buf.extend_from_slice(<span class="string">b"\r\n"</span>); |
| |
| conn.write_all(<span class="kw-2">&</span>buf).<span class="kw">await</span><span class="question-mark">?</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0</span>; <span class="number">8192</span>]; |
| <span class="kw">let </span><span class="kw-2">mut </span>pos = <span class="number">0</span>; |
| |
| <span class="kw">loop </span>{ |
| <span class="kw">let </span>n = conn.read(<span class="kw-2">&mut </span>buf[pos..]).<span class="kw">await</span><span class="question-mark">?</span>; |
| |
| <span class="kw">if </span>n == <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(tunnel_eof()); |
| } |
| pos += n; |
| |
| <span class="kw">let </span>recvd = <span class="kw-2">&</span>buf[..pos]; |
| <span class="kw">if </span>recvd.starts_with(<span class="string">b"HTTP/1.1 200"</span>) || recvd.starts_with(<span class="string">b"HTTP/1.0 200"</span>) { |
| <span class="kw">if </span>recvd.ends_with(<span class="string">b"\r\n\r\n"</span>) { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(conn); |
| } |
| <span class="kw">if </span>pos == buf.len() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="string">"proxy headers too long for tunnel"</span>.into()); |
| } |
| <span class="comment">// else read more |
| </span>} <span class="kw">else if </span>recvd.starts_with(<span class="string">b"HTTP/1.1 407"</span>) { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="string">"proxy authentication required"</span>.into()); |
| } <span class="kw">else </span>{ |
| <span class="kw">return </span><span class="prelude-val">Err</span>(<span class="string">"unsuccessful tunnel"</span>.into()); |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"__tls"</span>)] |
| </span><span class="kw">fn </span>tunnel_eof() -> BoxError { |
| <span class="string">"unexpected eof while tunneling"</span>.into() |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"default-tls"</span>)] |
| </span><span class="kw">mod </span>native_tls_conn { |
| <span class="kw">use </span>hyper::client::connect::{Connected, Connection}; |
| <span class="kw">use </span>pin_project_lite::pin_project; |
| <span class="kw">use </span>std::{ |
| io::{<span class="self">self</span>, IoSlice}, |
| pin::Pin, |
| task::{Context, Poll}, |
| }; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite, ReadBuf}; |
| <span class="kw">use </span>tokio_native_tls::TlsStream; |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">struct </span>NativeTlsConn<T> { |
| <span class="attribute">#[pin] </span><span class="kw">pub</span>(<span class="kw">super</span>) inner: TlsStream<T>, |
| } |
| } |
| |
| <span class="kw">impl</span><T: Connection + AsyncRead + AsyncWrite + Unpin> Connection <span class="kw">for </span>NativeTlsConn<T> { |
| <span class="attribute">#[cfg(feature = <span class="string">"native-tls-alpn"</span>)] |
| </span><span class="kw">fn </span>connected(<span class="kw-2">&</span><span class="self">self</span>) -> Connected { |
| <span class="kw">match </span><span class="self">self</span>.inner.get_ref().negotiated_alpn().ok() { |
| <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(alpn_protocol)) <span class="kw">if </span>alpn_protocol == <span class="string">b"h2" </span>=> <span class="self">self |
| </span>.inner |
| .get_ref() |
| .get_ref() |
| .get_ref() |
| .connected() |
| .negotiated_h2(), |
| <span class="kw">_ </span>=> <span class="self">self</span>.inner.get_ref().get_ref().get_ref().connected(), |
| } |
| } |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"native-tls-alpn"</span>))] |
| </span><span class="kw">fn </span>connected(<span class="kw-2">&</span><span class="self">self</span>) -> Connected { |
| <span class="self">self</span>.inner.get_ref().get_ref().get_ref().connected() |
| } |
| } |
| |
| <span class="kw">impl</span><T: AsyncRead + AsyncWrite + Unpin> AsyncRead <span class="kw">for </span>NativeTlsConn<T> { |
| <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, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<tokio::io::Result<()>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncRead::poll_read(this.inner, cx, buf) |
| } |
| } |
| |
| <span class="kw">impl</span><T: AsyncRead + AsyncWrite + Unpin> AsyncWrite <span class="kw">for </span>NativeTlsConn<T> { |
| <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, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, tokio::io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_write(this.inner, cx, buf) |
| } |
| |
| <span class="kw">fn </span>poll_write_vectored( |
| <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>>, |
| bufs: <span class="kw-2">&</span>[IoSlice<<span class="lifetime">'_</span>>], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_write_vectored(this.inner, cx, bufs) |
| } |
| |
| <span class="kw">fn </span>is_write_vectored(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.inner.is_write_vectored() |
| } |
| |
| <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, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), tokio::io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_flush(this.inner, cx) |
| } |
| |
| <span class="kw">fn </span>poll_shutdown( |
| <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, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), tokio::io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_shutdown(this.inner, cx) |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"__rustls"</span>)] |
| </span><span class="kw">mod </span>rustls_tls_conn { |
| <span class="kw">use </span>hyper::client::connect::{Connected, Connection}; |
| <span class="kw">use </span>pin_project_lite::pin_project; |
| <span class="kw">use </span>std::{ |
| io::{<span class="self">self</span>, IoSlice}, |
| pin::Pin, |
| task::{Context, Poll}, |
| }; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite, ReadBuf}; |
| <span class="kw">use </span>tokio_rustls::client::TlsStream; |
| |
| <span class="macro">pin_project! </span>{ |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">struct </span>RustlsTlsConn<T> { |
| <span class="attribute">#[pin] </span><span class="kw">pub</span>(<span class="kw">super</span>) inner: TlsStream<T>, |
| } |
| } |
| |
| <span class="kw">impl</span><T: Connection + AsyncRead + AsyncWrite + Unpin> Connection <span class="kw">for </span>RustlsTlsConn<T> { |
| <span class="kw">fn </span>connected(<span class="kw-2">&</span><span class="self">self</span>) -> Connected { |
| <span class="kw">if </span><span class="self">self</span>.inner.get_ref().<span class="number">1</span>.alpn_protocol() == <span class="prelude-val">Some</span>(<span class="string">b"h2"</span>) { |
| <span class="self">self</span>.inner.get_ref().<span class="number">0</span>.connected().negotiated_h2() |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.inner.get_ref().<span class="number">0</span>.connected() |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><T: AsyncRead + AsyncWrite + Unpin> AsyncRead <span class="kw">for </span>RustlsTlsConn<T> { |
| <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, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<tokio::io::Result<()>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncRead::poll_read(this.inner, cx, buf) |
| } |
| } |
| |
| <span class="kw">impl</span><T: AsyncRead + AsyncWrite + Unpin> AsyncWrite <span class="kw">for </span>RustlsTlsConn<T> { |
| <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, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, tokio::io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_write(this.inner, cx, buf) |
| } |
| |
| <span class="kw">fn </span>poll_write_vectored( |
| <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>>, |
| bufs: <span class="kw-2">&</span>[IoSlice<<span class="lifetime">'_</span>>], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_write_vectored(this.inner, cx, bufs) |
| } |
| |
| <span class="kw">fn </span>is_write_vectored(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.inner.is_write_vectored() |
| } |
| |
| <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, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), tokio::io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_flush(this.inner, cx) |
| } |
| |
| <span class="kw">fn </span>poll_shutdown( |
| <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, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), tokio::io::Error>> { |
| <span class="kw">let </span>this = <span class="self">self</span>.project(); |
| AsyncWrite::poll_shutdown(this.inner, cx) |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"socks"</span>)] |
| </span><span class="kw">mod </span>socks { |
| <span class="kw">use </span>std::io; |
| <span class="kw">use </span>std::net::ToSocketAddrs; |
| |
| <span class="kw">use </span>http::Uri; |
| <span class="kw">use </span>tokio::net::TcpStream; |
| <span class="kw">use </span>tokio_socks::tcp::Socks5Stream; |
| |
| <span class="kw">use super</span>::{BoxError, Scheme}; |
| <span class="kw">use </span><span class="kw">crate</span>::proxy::ProxyScheme; |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">enum </span>DnsResolve { |
| Local, |
| Proxy, |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">async fn </span>connect( |
| proxy: ProxyScheme, |
| dst: Uri, |
| dns: DnsResolve, |
| ) -> <span class="prelude-ty">Result</span><TcpStream, BoxError> { |
| <span class="kw">let </span>https = dst.scheme() == <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Scheme::HTTPS); |
| <span class="kw">let </span>original_host = dst |
| .host() |
| .ok_or(io::Error::new(io::ErrorKind::Other, <span class="string">"no host in url"</span>))<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>host = original_host.to_owned(); |
| <span class="kw">let </span>port = <span class="kw">match </span>dst.port() { |
| <span class="prelude-val">Some</span>(p) => p.as_u16(), |
| <span class="prelude-val">None </span><span class="kw">if </span>https => <span class="number">443u16</span>, |
| <span class="kw">_ </span>=> <span class="number">80u16</span>, |
| }; |
| |
| <span class="kw">if let </span>DnsResolve::Local = dns { |
| <span class="kw">let </span>maybe_new_target = (host.as_str(), port).to_socket_addrs()<span class="question-mark">?</span>.next(); |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(new_target) = maybe_new_target { |
| host = new_target.ip().to_string(); |
| } |
| } |
| |
| <span class="kw">let </span>(socket_addr, auth) = <span class="kw">match </span>proxy { |
| ProxyScheme::Socks5 { addr, auth, .. } => (addr, auth), |
| <span class="kw">_ </span>=> <span class="macro">unreachable!</span>(), |
| }; |
| |
| <span class="comment">// Get a Tokio TcpStream |
| </span><span class="kw">let </span>stream = <span class="kw">if let </span><span class="prelude-val">Some</span>((username, password)) = auth { |
| Socks5Stream::connect_with_password( |
| socket_addr, |
| (host.as_str(), port), |
| <span class="kw-2">&</span>username, |
| <span class="kw-2">&</span>password, |
| ) |
| .<span class="kw">await |
| </span>.map_err(|e| <span class="macro">format!</span>(<span class="string">"socks connect error: {}"</span>, e))<span class="question-mark">? |
| </span>} <span class="kw">else </span>{ |
| Socks5Stream::connect(socket_addr, (host.as_str(), port)) |
| .<span class="kw">await |
| </span>.map_err(|e| <span class="macro">format!</span>(<span class="string">"socks connect error: {}"</span>, e))<span class="question-mark">? |
| </span>}; |
| |
| <span class="prelude-val">Ok</span>(stream.into_inner()) |
| } |
| } |
| |
| <span class="kw">mod </span>verbose { |
| <span class="kw">use </span>hyper::client::connect::{Connected, Connection}; |
| <span class="kw">use </span>std::cmp::min; |
| <span class="kw">use </span>std::fmt; |
| <span class="kw">use </span>std::io::{<span class="self">self</span>, IoSlice}; |
| <span class="kw">use </span>std::pin::Pin; |
| <span class="kw">use </span>std::task::{Context, Poll}; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite, ReadBuf}; |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">const </span>OFF: Wrapper = Wrapper(<span class="bool-val">false</span>); |
| |
| <span class="attribute">#[derive(Clone, Copy)] |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">struct </span>Wrapper(<span class="kw">pub</span>(<span class="kw">super</span>) bool); |
| |
| <span class="kw">impl </span>Wrapper { |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>wrap<T: <span class="kw">super</span>::AsyncConn>(<span class="kw-2">&</span><span class="self">self</span>, conn: T) -> <span class="kw">super</span>::BoxConn { |
| <span class="kw">if </span><span class="self">self</span>.<span class="number">0 </span>&& <span class="macro">log::log_enabled!</span>(log::Level::Trace) { |
| Box::new(Verbose { |
| <span class="comment">// truncate is fine |
| </span>id: <span class="kw">crate</span>::util::fast_random() <span class="kw">as </span>u32, |
| inner: conn, |
| }) |
| } <span class="kw">else </span>{ |
| Box::new(conn) |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>Verbose<T> { |
| id: u32, |
| inner: T, |
| } |
| |
| <span class="kw">impl</span><T: Connection + AsyncRead + AsyncWrite + Unpin> Connection <span class="kw">for </span>Verbose<T> { |
| <span class="kw">fn </span>connected(<span class="kw-2">&</span><span class="self">self</span>) -> Connected { |
| <span class="self">self</span>.inner.connected() |
| } |
| } |
| |
| <span class="kw">impl</span><T: AsyncRead + AsyncWrite + Unpin> AsyncRead <span class="kw">for </span>Verbose<T> { |
| <span class="kw">fn </span>poll_read( |
| <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, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<std::io::Result<()>> { |
| <span class="kw">match </span>Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.inner).poll_read(cx, buf) { |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) => { |
| <span class="macro">log::trace!</span>(<span class="string">"{:08x} read: {:?}"</span>, <span class="self">self</span>.id, Escape(buf.filled())); |
| Poll::Ready(<span class="prelude-val">Ok</span>(())) |
| } |
| Poll::Ready(<span class="prelude-val">Err</span>(e)) => Poll::Ready(<span class="prelude-val">Err</span>(e)), |
| Poll::Pending => Poll::Pending, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><T: AsyncRead + AsyncWrite + Unpin> AsyncWrite <span class="kw">for </span>Verbose<T> { |
| <span class="kw">fn </span>poll_write( |
| <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, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, std::io::Error>> { |
| <span class="kw">match </span>Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.inner).poll_write(cx, buf) { |
| Poll::Ready(<span class="prelude-val">Ok</span>(n)) => { |
| <span class="macro">log::trace!</span>(<span class="string">"{:08x} write: {:?}"</span>, <span class="self">self</span>.id, Escape(<span class="kw-2">&</span>buf[..n])); |
| Poll::Ready(<span class="prelude-val">Ok</span>(n)) |
| } |
| Poll::Ready(<span class="prelude-val">Err</span>(e)) => Poll::Ready(<span class="prelude-val">Err</span>(e)), |
| Poll::Pending => Poll::Pending, |
| } |
| } |
| |
| <span class="kw">fn </span>poll_write_vectored( |
| <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>>, |
| bufs: <span class="kw-2">&</span>[IoSlice<<span class="lifetime">'_</span>>], |
| ) -> Poll<<span class="prelude-ty">Result</span><usize, io::Error>> { |
| <span class="kw">match </span>Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.inner).poll_write_vectored(cx, bufs) { |
| Poll::Ready(<span class="prelude-val">Ok</span>(nwritten)) => { |
| <span class="macro">log::trace!</span>( |
| <span class="string">"{:08x} write (vectored): {:?}"</span>, |
| <span class="self">self</span>.id, |
| Vectored { bufs, nwritten } |
| ); |
| Poll::Ready(<span class="prelude-val">Ok</span>(nwritten)) |
| } |
| Poll::Ready(<span class="prelude-val">Err</span>(e)) => Poll::Ready(<span class="prelude-val">Err</span>(e)), |
| Poll::Pending => Poll::Pending, |
| } |
| } |
| |
| <span class="kw">fn </span>is_write_vectored(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.inner.is_write_vectored() |
| } |
| |
| <span class="kw">fn </span>poll_flush( |
| <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, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), std::io::Error>> { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.inner).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, |
| ) -> Poll<<span class="prelude-ty">Result</span><(), std::io::Error>> { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.inner).poll_shutdown(cx) |
| } |
| } |
| |
| <span class="kw">struct </span>Escape<<span class="lifetime">'a</span>>(<span class="kw-2">&</span><span class="lifetime">'a </span>[u8]); |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Escape<<span class="lifetime">'_</span>> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="macro">write!</span>(f, <span class="string">"b\""</span>)<span class="question-mark">?</span>; |
| <span class="kw">for </span><span class="kw-2">&</span>c <span class="kw">in </span><span class="self">self</span>.<span class="number">0 </span>{ |
| <span class="comment">// https://doc.rust-lang.org/reference.html#byte-escapes |
| </span><span class="kw">if </span>c == <span class="string">b'\n' </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"\\n"</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else if </span>c == <span class="string">b'\r' </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"\\r"</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else if </span>c == <span class="string">b'\t' </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"\\t"</span>)<span class="question-mark">?</span>; |
| } <span class="kw">else if </span>c == <span class="string">b'\\' </span>|| c == <span class="string">b'"' </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"\\{}"</span>, c <span class="kw">as </span>char)<span class="question-mark">?</span>; |
| } <span class="kw">else if </span>c == <span class="string">b'\0' </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"\\0"</span>)<span class="question-mark">?</span>; |
| <span class="comment">// ASCII printable |
| </span>} <span class="kw">else if </span>c >= <span class="number">0x20 </span>&& c < <span class="number">0x7f </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"{}"</span>, c <span class="kw">as </span>char)<span class="question-mark">?</span>; |
| } <span class="kw">else </span>{ |
| <span class="macro">write!</span>(f, <span class="string">"\\x{:02x}"</span>, c)<span class="question-mark">?</span>; |
| } |
| } |
| <span class="macro">write!</span>(f, <span class="string">"\""</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">struct </span>Vectored<<span class="lifetime">'a</span>, <span class="lifetime">'b</span>> { |
| bufs: <span class="kw-2">&</span><span class="lifetime">'a </span>[IoSlice<<span class="lifetime">'b</span>>], |
| nwritten: usize, |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Vectored<<span class="lifetime">'_</span>, <span class="lifetime">'_</span>> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| <span class="kw">let </span><span class="kw-2">mut </span>left = <span class="self">self</span>.nwritten; |
| <span class="kw">for </span>buf <span class="kw">in </span><span class="self">self</span>.bufs.iter() { |
| <span class="kw">if </span>left == <span class="number">0 </span>{ |
| <span class="kw">break</span>; |
| } |
| <span class="kw">let </span>n = min(left, buf.len()); |
| Escape(<span class="kw-2">&</span>buf[..n]).fmt(f)<span class="question-mark">?</span>; |
| left -= n; |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"__tls"</span>)] |
| #[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span><span class="kw">super</span>::tunnel; |
| <span class="kw">use </span><span class="kw">crate</span>::proxy; |
| <span class="kw">use </span>std::io::{Read, Write}; |
| <span class="kw">use </span>std::net::TcpListener; |
| <span class="kw">use </span>std::thread; |
| <span class="kw">use </span>tokio::net::TcpStream; |
| <span class="kw">use </span>tokio::runtime; |
| |
| <span class="kw">static </span>TUNNEL_UA: <span class="kw-2">&</span>str = <span class="string">"tunnel-test/x.y"</span>; |
| <span class="kw">static </span>TUNNEL_OK: <span class="kw-2">&</span>[u8] = <span class="string">b"\ |
| HTTP/1.1 200 OK\r\n\ |
| \r\n\ |
| "</span>; |
| |
| <span class="macro">macro_rules! </span>mock_tunnel { |
| () => {{ |
| <span class="macro">mock_tunnel!</span>(TUNNEL_OK) |
| }}; |
| (<span class="macro-nonterminal">$write</span>:expr) => {{ |
| <span class="macro">mock_tunnel!</span>(<span class="macro-nonterminal">$write</span>, <span class="string">""</span>) |
| }}; |
| (<span class="macro-nonterminal">$write</span>:expr, <span class="macro-nonterminal">$auth</span>:expr) => {{ |
| <span class="kw">let </span>listener = TcpListener::bind(<span class="string">"127.0.0.1:0"</span>).unwrap(); |
| <span class="kw">let </span>addr = listener.local_addr().unwrap(); |
| <span class="kw">let </span>connect_expected = <span class="macro">format!</span>( |
| <span class="string">"\ |
| CONNECT {0}:{1} HTTP/1.1\r\n\ |
| Host: {0}:{1}\r\n\ |
| User-Agent: {2}\r\n\ |
| {3}\ |
| \r\n\ |
| "</span>, |
| addr.ip(), |
| addr.port(), |
| TUNNEL_UA, |
| <span class="macro-nonterminal">$auth |
| </span>) |
| .into_bytes(); |
| |
| thread::spawn(<span class="kw">move </span>|| { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>sock, <span class="kw">_</span>) = listener.accept().unwrap(); |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0u8</span>; <span class="number">4096</span>]; |
| <span class="kw">let </span>n = sock.read(<span class="kw-2">&mut </span>buf).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>buf[..n], <span class="kw-2">&</span>connect_expected[..]); |
| |
| sock.write_all(<span class="macro-nonterminal">$write</span>).unwrap(); |
| }); |
| addr |
| }}; |
| } |
| |
| <span class="kw">fn </span>ua() -> <span class="prelude-ty">Option</span><http::header::HeaderValue> { |
| <span class="prelude-val">Some</span>(http::header::HeaderValue::from_static(TUNNEL_UA)) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_tunnel() { |
| <span class="kw">let </span>addr = <span class="macro">mock_tunnel!</span>(); |
| |
| <span class="kw">let </span>rt = runtime::Builder::new_current_thread() |
| .enable_all() |
| .build() |
| .expect(<span class="string">"new rt"</span>); |
| <span class="kw">let </span>f = <span class="kw">async move </span>{ |
| <span class="kw">let </span>tcp = TcpStream::connect(<span class="kw-2">&</span>addr).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>host = addr.ip().to_string(); |
| <span class="kw">let </span>port = addr.port(); |
| tunnel(tcp, host, port, ua(), <span class="prelude-val">None</span>).<span class="kw">await |
| </span>}; |
| |
| rt.block_on(f).unwrap(); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_tunnel_eof() { |
| <span class="kw">let </span>addr = <span class="macro">mock_tunnel!</span>(<span class="string">b"HTTP/1.1 200 OK"</span>); |
| |
| <span class="kw">let </span>rt = runtime::Builder::new_current_thread() |
| .enable_all() |
| .build() |
| .expect(<span class="string">"new rt"</span>); |
| <span class="kw">let </span>f = <span class="kw">async move </span>{ |
| <span class="kw">let </span>tcp = TcpStream::connect(<span class="kw-2">&</span>addr).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>host = addr.ip().to_string(); |
| <span class="kw">let </span>port = addr.port(); |
| tunnel(tcp, host, port, ua(), <span class="prelude-val">None</span>).<span class="kw">await |
| </span>}; |
| |
| rt.block_on(f).unwrap_err(); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_tunnel_non_http_response() { |
| <span class="kw">let </span>addr = <span class="macro">mock_tunnel!</span>(<span class="string">b"foo bar baz hallo"</span>); |
| |
| <span class="kw">let </span>rt = runtime::Builder::new_current_thread() |
| .enable_all() |
| .build() |
| .expect(<span class="string">"new rt"</span>); |
| <span class="kw">let </span>f = <span class="kw">async move </span>{ |
| <span class="kw">let </span>tcp = TcpStream::connect(<span class="kw-2">&</span>addr).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>host = addr.ip().to_string(); |
| <span class="kw">let </span>port = addr.port(); |
| tunnel(tcp, host, port, ua(), <span class="prelude-val">None</span>).<span class="kw">await |
| </span>}; |
| |
| rt.block_on(f).unwrap_err(); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_tunnel_proxy_unauthorized() { |
| <span class="kw">let </span>addr = <span class="macro">mock_tunnel!</span>( |
| <span class="string">b"\ |
| HTTP/1.1 407 Proxy Authentication Required\r\n\ |
| Proxy-Authenticate: Basic realm=\"nope\"\r\n\ |
| \r\n\ |
| " |
| </span>); |
| |
| <span class="kw">let </span>rt = runtime::Builder::new_current_thread() |
| .enable_all() |
| .build() |
| .expect(<span class="string">"new rt"</span>); |
| <span class="kw">let </span>f = <span class="kw">async move </span>{ |
| <span class="kw">let </span>tcp = TcpStream::connect(<span class="kw-2">&</span>addr).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>host = addr.ip().to_string(); |
| <span class="kw">let </span>port = addr.port(); |
| tunnel(tcp, host, port, ua(), <span class="prelude-val">None</span>).<span class="kw">await |
| </span>}; |
| |
| <span class="kw">let </span>error = rt.block_on(f).unwrap_err(); |
| <span class="macro">assert_eq!</span>(error.to_string(), <span class="string">"proxy authentication required"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_tunnel_basic_auth() { |
| <span class="kw">let </span>addr = <span class="macro">mock_tunnel!</span>( |
| TUNNEL_OK, |
| <span class="string">"Proxy-Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==\r\n" |
| </span>); |
| |
| <span class="kw">let </span>rt = runtime::Builder::new_current_thread() |
| .enable_all() |
| .build() |
| .expect(<span class="string">"new rt"</span>); |
| <span class="kw">let </span>f = <span class="kw">async move </span>{ |
| <span class="kw">let </span>tcp = TcpStream::connect(<span class="kw-2">&</span>addr).<span class="kw">await</span><span class="question-mark">?</span>; |
| <span class="kw">let </span>host = addr.ip().to_string(); |
| <span class="kw">let </span>port = addr.port(); |
| tunnel( |
| tcp, |
| host, |
| port, |
| ua(), |
| <span class="prelude-val">Some</span>(proxy::encode_basic_auth(<span class="string">"Aladdin"</span>, <span class="string">"open sesame"</span>)), |
| ) |
| .<span class="kw">await |
| </span>}; |
| |
| rt.block_on(f).unwrap(); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="reqwest" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
