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</pre><pre class="rust"><code><span class="kw">use </span>actix_web::{http::StatusCode, HttpResponse, ResponseError};
<span class="kw">use </span>derive_more::{Display, Error};
<span class="doccomment">/// Errors that can occur when processing CORS guarded requests.
</span><span class="attribute">#[derive(Debug, Clone, Display, Error)]
#[non_exhaustive]
</span><span class="kw">pub enum </span>CorsError {
<span class="doccomment">/// Allowed origin argument must not be wildcard (`*`).
</span><span class="attribute">#[display(fmt = <span class="string">"`allowed_origin` argument must not be wildcard (`*`)"</span>)]
</span>WildcardOrigin,
<span class="doccomment">/// Request header `Origin` is required but was not provided.
</span><span class="attribute">#[display(fmt = <span class="string">"Request header `Origin` is required but was not provided"</span>)]
</span>MissingOrigin,
<span class="doccomment">/// Request header `Access-Control-Request-Method` is required but is missing.
</span><span class="attribute">#[display(fmt = <span class="string">"Request header `Access-Control-Request-Method` is required but is missing"</span>)]
</span>MissingRequestMethod,
<span class="doccomment">/// Request header `Access-Control-Request-Method` has an invalid value.
</span><span class="attribute">#[display(fmt = <span class="string">"Request header `Access-Control-Request-Method` has an invalid value"</span>)]
</span>BadRequestMethod,
<span class="doccomment">/// Request header `Access-Control-Request-Headers` has an invalid value.
</span><span class="attribute">#[display(fmt = <span class="string">"Request header `Access-Control-Request-Headers` has an invalid value"</span>)]
</span>BadRequestHeaders,
<span class="doccomment">/// Origin is not allowed to make this request.
</span><span class="attribute">#[display(fmt = <span class="string">"Origin is not allowed to make this request"</span>)]
</span>OriginNotAllowed,
<span class="doccomment">/// Request method is not allowed.
</span><span class="attribute">#[display(fmt = <span class="string">"Requested method is not allowed"</span>)]
</span>MethodNotAllowed,
<span class="doccomment">/// One or more request headers are not allowed.
</span><span class="attribute">#[display(fmt = <span class="string">"One or more request headers are not allowed"</span>)]
</span>HeadersNotAllowed,
}
<span class="kw">impl </span>ResponseError <span class="kw">for </span>CorsError {
<span class="kw">fn </span>status_code(<span class="kw-2">&</span><span class="self">self</span>) -> StatusCode {
StatusCode::BAD_REQUEST
}
<span class="kw">fn </span>error_response(<span class="kw-2">&</span><span class="self">self</span>) -> HttpResponse {
HttpResponse::with_body(<span class="self">self</span>.status_code(), <span class="self">self</span>.to_string()).map_into_boxed_body()
}
}
</code></pre></div>
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