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</pre><pre class="rust"><code><span class="kw">use</span> <span class="ident">std::error::Error</span>;
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<span class="kw">use</span> <span class="ident">std::fmt</span>;
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<span class="kw">use</span> <span class="ident">actix_web::http::StatusCode</span>;
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<span class="kw">use</span> <span class="ident">actix_web</span>::{<span class="ident">HttpResponse</span>, <span class="ident">ResponseError</span>};
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<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::headers::www_authenticate::Challenge</span>;
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<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::headers::www_authenticate::WwwAuthenticate</span>;
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<span class="doccomment">/// Authentication error returned by authentication extractors.</span>
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<span class="doccomment">///</span>
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<span class="doccomment">/// Different extractors may extend `AuthenticationError` implementation</span>
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<span class="doccomment">/// in order to provide access to inner challenge fields.</span>
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<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
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<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Challenge</span><span class="op">></span> {
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<span class="ident">challenge</span>: <span class="ident">C</span>,
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<span class="ident">status_code</span>: <span class="ident">StatusCode</span>,
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}
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<span class="kw">impl</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Challenge</span><span class="op">></span> <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> {
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<span class="doccomment">/// Creates new authentication error from the provided `challenge`.</span>
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<span class="doccomment">///</span>
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<span class="doccomment">/// By default returned error will resolve into the `HTTP 401` status code.</span>
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<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">challenge</span>: <span class="ident">C</span>) -> <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> {
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<span class="ident">AuthenticationError</span> {
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<span class="ident">challenge</span>,
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<span class="ident">status_code</span>: <span class="ident">StatusCode::UNAUTHORIZED</span>,
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}
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}
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<span class="doccomment">/// Returns mutable reference to the inner challenge instance.</span>
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<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">challenge_mut</span>(<span class="kw-2">&mut</span> <span class="self">self</span>) -> <span class="kw-2">&mut</span> <span class="ident">C</span> {
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<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">challenge</span>
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}
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<span class="doccomment">/// Returns mutable reference to the inner status code.</span>
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<span class="doccomment">///</span>
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<span class="doccomment">/// Can be used to override returned status code, but by default</span>
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<span class="doccomment">/// this lib tries to stick to the RFC, so it might be unreasonable.</span>
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<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">status_code_mut</span>(<span class="kw-2">&mut</span> <span class="self">self</span>) -> <span class="kw-2">&mut</span> <span class="ident">StatusCode</span> {
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<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">status_code</span>
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}
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}
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<span class="kw">impl</span><span class="op"><</span><span class="ident">C</span>: <span class="ident">Challenge</span><span class="op">></span> <span class="ident">fmt::Display</span> <span class="kw">for</span> <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> {
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<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&mut</span> <span class="ident">fmt::Formatter</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span>) -> <span class="ident">fmt::Result</span> {
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<span class="ident">fmt::Display::fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">status_code</span>, <span class="ident">f</span>)
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}
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}
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<span class="kw">impl</span><span class="op"><</span><span class="ident">C</span>: <span class="lifetime">'static</span> <span class="op">+</span> <span class="ident">Challenge</span><span class="op">></span> <span class="ident">Error</span> <span class="kw">for</span> <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> {}
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<span class="kw">impl</span><span class="op"><</span><span class="ident">C</span>: <span class="lifetime">'static</span> <span class="op">+</span> <span class="ident">Challenge</span><span class="op">></span> <span class="ident">ResponseError</span> <span class="kw">for</span> <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">C</span><span class="op">></span> {
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<span class="kw">fn</span> <span class="ident">error_response</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">HttpResponse</span> {
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<span class="ident">HttpResponse::build</span>(<span class="self">self</span>.<span class="ident">status_code</span>)
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<span class="comment">// TODO: Get rid of the `.clone()`</span>
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.<span class="ident">insert_header</span>(<span class="ident">WwwAuthenticate</span>(<span class="self">self</span>.<span class="ident">challenge</span>.<span class="ident">clone</span>()))
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.<span class="ident">finish</span>()
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}
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<span class="kw">fn</span> <span class="ident">status_code</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">StatusCode</span> {
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<span class="self">self</span>.<span class="ident">status_code</span>
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}
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}
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<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
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<span class="kw">mod</span> <span class="ident">tests</span> {
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<span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;
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<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::headers::www_authenticate::basic::Basic</span>;
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<span class="kw">use</span> <span class="ident">actix_web::Error</span>;
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<span class="attribute">#[<span class="ident">test</span>]</span>
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<span class="kw">fn</span> <span class="ident">test_status_code_is_preserved_across_error_conversions</span>() {
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<span class="kw">let</span> <span class="ident">ae</span>: <span class="ident">AuthenticationError</span><span class="op"><</span><span class="ident">Basic</span><span class="op">></span> <span class="op">=</span> <span class="ident">AuthenticationError::new</span>(<span class="ident">Basic::default</span>());
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<span class="kw">let</span> <span class="ident">expected</span> <span class="op">=</span> <span class="ident">ae</span>.<span class="ident">status_code</span>;
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<span class="comment">// Converting the AuthenticationError into a ResponseError should preserve the status code.</span>
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<span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="ident">Error::from</span>(<span class="ident">ae</span>);
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<span class="kw">let</span> <span class="ident">re</span> <span class="op">=</span> <span class="ident">e</span>.<span class="ident">as_response_error</span>();
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<span class="macro">assert_eq!</span>(<span class="ident">expected</span>, <span class="ident">re</span>.<span class="ident">status_code</span>());
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}
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}
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</code></pre></div>
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