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</pre><pre class="rust"><code><span class="doccomment">//! Extractor for the "Basic" HTTP Authentication Scheme.</span>
<span class="kw">use</span> <span class="ident">std::borrow::Cow</span>;
<span class="kw">use</span> <span class="ident">actix_utils::future</span>::{<span class="ident">ready</span>, <span class="ident">Ready</span>};
<span class="kw">use</span> <span class="ident">actix_web</span>::{<span class="ident">dev::Payload</span>, <span class="ident">http::header::Header</span>, <span class="ident">FromRequest</span>, <span class="ident">HttpRequest</span>};
<span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">config::AuthExtractorConfig</span>, <span class="ident">errors::AuthenticationError</span>};
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::headers</span>::{
<span class="ident">authorization</span>::{<span class="ident">Authorization</span>, <span class="ident">Basic</span>},
<span class="ident">www_authenticate::basic::Basic</span> <span class="kw">as</span> <span class="ident">Challenge</span>,
};
<span class="doccomment">/// [`BasicAuth`] extractor configuration used for [`WWW-Authenticate`] header later.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [`WWW-Authenticate`]: crate::headers::www_authenticate::WwwAuthenticate</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Default</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Config</span>(<span class="ident">Challenge</span>);
<span class="kw">impl</span> <span class="ident">Config</span> {
<span class="doccomment">/// Set challenge `realm` attribute.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// The "realm" attribute indicates the scope of protection in the manner described in HTTP/1.1</span>
<span class="doccomment">/// [RFC 2617 §1.2](https://tools.ietf.org/html/rfc2617#section-1.2).</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">realm</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">T</span>) -> <span class="ident">Config</span>
<span class="kw">where</span>
<span class="ident">T</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="ident">str</span><span class="op">></span><span class="op">></span>,
{
<span class="self">self</span>.<span class="number">0</span>.<span class="ident">realm</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">value</span>.<span class="ident">into</span>());
<span class="self">self</span>
}
}
<span class="kw">impl</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">Challenge</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Config</span> {
<span class="kw">fn</span> <span class="ident">as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">Challenge</span> {
<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0</span>
}
}
<span class="kw">impl</span> <span class="ident">AuthExtractorConfig</span> <span class="kw">for</span> <span class="ident">Config</span> {
<span class="kw">type</span> <span class="ident">Inner</span> <span class="op">=</span> <span class="ident">Challenge</span>;
<span class="kw">fn</span> <span class="ident">into_inner</span>(<span class="self">self</span>) -> <span class="ident"><span class="self">Self</span>::Inner</span> {
<span class="self">self</span>.<span class="number">0</span>
}
}
<span class="doccomment">/// Extractor for HTTP Basic auth.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Examples</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">/// use actix_web_httpauth::extractors::basic::BasicAuth;</span>
<span class="doccomment">///</span>
<span class="doccomment">/// async fn index(auth: BasicAuth) -> String {</span>
<span class="doccomment">/// format!("Hello, {}!", auth.user_id())</span>
<span class="doccomment">/// }</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">///</span>
<span class="doccomment">/// If authentication fails, this extractor fetches the [`Config`] instance from the [app data] in</span>
<span class="doccomment">/// order to properly form the `WWW-Authenticate` response header.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// # Examples</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">/// use actix_web::{web, App};</span>
<span class="doccomment">/// use actix_web_httpauth::extractors::basic::{self, BasicAuth};</span>
<span class="doccomment">///</span>
<span class="doccomment">/// async fn index(auth: BasicAuth) -> String {</span>
<span class="doccomment">/// format!("Hello, {}!", auth.user_id())</span>
<span class="doccomment">/// }</span>
<span class="doccomment">///</span>
<span class="doccomment">/// App::new()</span>
<span class="doccomment">/// .app_data(basic::Config::default().realm("Restricted area"))</span>
<span class="doccomment">/// .service(web::resource("/index.html").route(web::get().to(index)));</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">///</span>
<span class="doccomment">/// [app data]: https://docs.rs/actix-web/4/actix_web/struct.App.html#method.app_data</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">BasicAuth</span>(<span class="ident">Basic</span>);
<span class="kw">impl</span> <span class="ident">BasicAuth</span> {
<span class="doccomment">/// Returns client's user-ID.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">user_id</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">str</span> {
<span class="self">self</span>.<span class="number">0</span>.<span class="ident">user_id</span>()
}
<span class="doccomment">/// Returns client's password.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">password</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">str</span><span class="op">></span> {
<span class="self">self</span>.<span class="number">0</span>.<span class="ident">password</span>()
}
}
<span class="kw">impl</span> <span class="ident">FromRequest</span> <span class="kw">for</span> <span class="ident">BasicAuth</span> {
<span class="kw">type</span> <span class="ident">Future</span> <span class="op">=</span> <span class="ident">Ready</span><span class="op"><</span><span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span>, <span class="ident"><span class="self">Self</span>::Error</span><span class="op">></span><span class="op">></span>;
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">Challenge</span><span class="op">></span>;
<span class="kw">fn</span> <span class="ident">from_request</span>(<span class="ident">req</span>: <span class="kw-2">&</span><span class="ident">HttpRequest</span>, <span class="kw">_</span>: <span class="kw-2">&mut</span> <span class="ident">Payload</span>) -> <span class="op"><</span><span class="self">Self</span> <span class="kw">as</span> <span class="ident">FromRequest</span><span class="op">></span><span class="ident">::Future</span> {
<span class="ident">ready</span>(
<span class="ident">Authorization</span>::<span class="op"><</span><span class="ident">Basic</span><span class="op">></span><span class="ident">::parse</span>(<span class="ident">req</span>)
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">auth</span><span class="op">|</span> <span class="ident">BasicAuth</span>(<span class="ident">auth</span>.<span class="ident">into_scheme</span>()))
.<span class="ident">map_err</span>(<span class="op">|</span><span class="ident">err</span><span class="op">|</span> {
<span class="macro">log::debug!</span>(<span class="string">"`BasicAuth` extract error: {}"</span>, <span class="ident">err</span>);
<span class="kw">let</span> <span class="ident">challenge</span> <span class="op">=</span> <span class="ident">req</span>
.<span class="ident">app_data</span>::<span class="op"><</span><span class="ident">Config</span><span class="op">></span>()
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">config</span><span class="op">|</span> <span class="ident">config</span>.<span class="number">0</span>.<span class="ident">clone</span>())
.<span class="ident">unwrap_or_default</span>();
<span class="ident">AuthenticationError::new</span>(<span class="ident">challenge</span>)
}),
)
}
}
</code></pre></div>
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