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<!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 `actix-web-httpauth&#x2F;src&#x2F;extractors&#x2F;mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled ><script id="default-settings" ></script><script src="../../../storage.js"></script><script src="../../../crates.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"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></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"><div class="sidebar-menu" role="button">&#9776;</div><a href='../../../actix_web_httpauth/index.html'><div class='logo-container rust-logo'><img src='../../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press S to search, ? for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../../wheel.svg"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class="rust"><code><span class="doccomment">//! Type-safe authentication information extractors</span>
<span class="kw">use</span> <span class="ident">std</span>::{
<span class="ident">future::Future</span>,
<span class="ident">pin::Pin</span>,
<span class="ident">task</span>::{<span class="ident">Context</span>, <span class="ident">Poll</span>},
};
<span class="kw">use</span> <span class="ident">actix_web::dev::ServiceRequest</span>;
<span class="kw">use</span> <span class="ident">actix_web::Error</span>;
<span class="kw">use</span> <span class="ident">futures_util::ready</span>;
<span class="kw">use</span> <span class="ident">pin_project_lite::pin_project</span>;
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">basic</span>;
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">bearer</span>;
<span class="kw">mod</span> <span class="ident">config</span>;
<span class="kw">mod</span> <span class="ident">errors</span>;
<span class="kw">pub</span> <span class="kw">use</span> <span class="ident"><span class="self">self</span>::config::AuthExtractorConfig</span>;
<span class="kw">pub</span> <span class="kw">use</span> <span class="ident"><span class="self">self</span>::errors::AuthenticationError</span>;
<span class="doccomment">/// Trait implemented by types that can extract</span>
<span class="doccomment">/// HTTP authentication scheme credentials from the request.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// It is very similar to actix&#39; `FromRequest` trait,</span>
<span class="doccomment">/// except it operates with a `ServiceRequest` struct instead,</span>
<span class="doccomment">/// therefore it can be used in the middlewares.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// You will not need it unless you want to implement your own</span>
<span class="doccomment">/// authentication scheme.</span>
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">AuthExtractor</span>: <span class="ident">Sized</span> {
<span class="doccomment">/// The associated error which can be returned.</span>
<span class="kw">type</span> <span class="ident">Error</span>: <span class="ident">Into</span><span class="op">&lt;</span><span class="ident">Error</span><span class="op">&gt;</span>;
<span class="doccomment">/// Future that resolves into extracted credentials type.</span>
<span class="kw">type</span> <span class="ident">Future</span>: <span class="ident">Future</span><span class="op">&lt;</span><span class="ident">Output</span> <span class="op">=</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span>, <span class="ident"><span class="self">Self</span>::Error</span><span class="op">&gt;</span><span class="op">&gt;</span>;
<span class="doccomment">/// Parse the authentication credentials from the actix&#39; `ServiceRequest`.</span>
<span class="kw">fn</span> <span class="ident">from_service_request</span>(<span class="ident">req</span>: <span class="kw-2">&amp;</span><span class="ident">ServiceRequest</span>) -&gt; <span class="ident"><span class="self">Self</span>::Future</span>;
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">T</span>: <span class="ident">AuthExtractor</span><span class="op">&gt;</span> <span class="ident">AuthExtractor</span> <span class="kw">for</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span> {
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">T::Error</span>;
<span class="kw">type</span> <span class="ident">Future</span> <span class="op">=</span> <span class="ident">AuthExtractorOptFut</span><span class="op">&lt;</span><span class="ident">T::Future</span><span class="op">&gt;</span>;
<span class="kw">fn</span> <span class="ident">from_service_request</span>(<span class="ident">req</span>: <span class="kw-2">&amp;</span><span class="ident">ServiceRequest</span>) -&gt; <span class="ident"><span class="self">Self</span>::Future</span> {
<span class="kw">let</span> <span class="ident">fut</span> <span class="op">=</span> <span class="ident">T::from_service_request</span>(<span class="ident">req</span>);
<span class="ident">AuthExtractorOptFut</span> { <span class="ident">fut</span> }
}
}
<span class="macro">pin_project!</span> {
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">AuthExtractorOptFut</span><span class="op">&lt;</span><span class="ident">F</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">pin</span>]</span>
<span class="ident">fut</span>: <span class="ident">F</span>
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">F</span>, <span class="ident">T</span>, <span class="ident">E</span><span class="op">&gt;</span> <span class="ident">Future</span> <span class="kw">for</span> <span class="ident">AuthExtractorOptFut</span><span class="op">&lt;</span><span class="ident">F</span><span class="op">&gt;</span>
<span class="kw">where</span>
<span class="ident">F</span>: <span class="ident">Future</span><span class="op">&lt;</span><span class="ident">Output</span> <span class="op">=</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">T</span>, <span class="ident">E</span><span class="op">&gt;</span><span class="op">&gt;</span>,
{
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">T</span><span class="op">&gt;</span>, <span class="ident">E</span><span class="op">&gt;</span>;
<span class="kw">fn</span> <span class="ident">poll</span>(<span class="self">self</span>: <span class="ident">Pin</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">Self</span><span class="op">&gt;</span>, <span class="ident">cx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op">&lt;</span><span class="lifetime">&#39;_</span><span class="op">&gt;</span>) -&gt; <span class="ident">Poll</span><span class="op">&lt;</span><span class="ident"><span class="self">Self</span>::Output</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">res</span> <span class="op">=</span> <span class="macro">ready!</span>(<span class="self">self</span>.<span class="ident">project</span>().<span class="ident">fut</span>.<span class="ident">poll</span>(<span class="ident">cx</span>));
<span class="ident">Poll::Ready</span>(<span class="prelude-val">Ok</span>(<span class="ident">res</span>.<span class="ident">ok</span>()))
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">T</span>: <span class="ident">AuthExtractor</span><span class="op">&gt;</span> <span class="ident">AuthExtractor</span> <span class="kw">for</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">T</span>, <span class="ident">T::Error</span><span class="op">&gt;</span> {
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">T::Error</span>;
<span class="kw">type</span> <span class="ident">Future</span> <span class="op">=</span> <span class="ident">AuthExtractorResFut</span><span class="op">&lt;</span><span class="ident">T::Future</span><span class="op">&gt;</span>;
<span class="kw">fn</span> <span class="ident">from_service_request</span>(<span class="ident">req</span>: <span class="kw-2">&amp;</span><span class="ident">ServiceRequest</span>) -&gt; <span class="ident"><span class="self">Self</span>::Future</span> {
<span class="ident">AuthExtractorResFut</span> {
<span class="ident">fut</span>: <span class="ident">T::from_service_request</span>(<span class="ident">req</span>),
}
}
}
<span class="macro">pin_project!</span> {
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">AuthExtractorResFut</span><span class="op">&lt;</span><span class="ident">F</span><span class="op">&gt;</span> {
<span class="attribute">#[<span class="ident">pin</span>]</span>
<span class="ident">fut</span>: <span class="ident">F</span>
}
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">F</span>, <span class="ident">T</span>, <span class="ident">E</span><span class="op">&gt;</span> <span class="ident">Future</span> <span class="kw">for</span> <span class="ident">AuthExtractorResFut</span><span class="op">&lt;</span><span class="ident">F</span><span class="op">&gt;</span>
<span class="kw">where</span>
<span class="ident">F</span>: <span class="ident">Future</span><span class="op">&lt;</span><span class="ident">Output</span> <span class="op">=</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">T</span>, <span class="ident">E</span><span class="op">&gt;</span><span class="op">&gt;</span>,
{
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">F::Output</span>, <span class="ident">E</span><span class="op">&gt;</span>;
<span class="kw">fn</span> <span class="ident">poll</span>(<span class="self">self</span>: <span class="ident">Pin</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">Self</span><span class="op">&gt;</span>, <span class="ident">cx</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">Context</span><span class="op">&lt;</span><span class="lifetime">&#39;_</span><span class="op">&gt;</span>) -&gt; <span class="ident">Poll</span><span class="op">&lt;</span><span class="ident"><span class="self">Self</span>::Output</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">res</span> <span class="op">=</span> <span class="macro">ready!</span>(<span class="self">self</span>.<span class="ident">project</span>().<span class="ident">fut</span>.<span class="ident">poll</span>(<span class="ident">cx</span>));
<span class="ident">Poll::Ready</span>(<span class="prelude-val">Ok</span>(<span class="ident">res</span>))
}
}
</code></pre></div>
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