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|
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|
||
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|
||
</pre><pre class="rust"><code><span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">collections::HashSet</span>, <span class="ident">convert::TryInto</span>, <span class="ident">iter::FromIterator</span>, <span class="ident">rc::Rc</span>};
|
||
|
||
<span class="kw">use</span> <span class="ident">actix_utils::future</span>::{<span class="self">self</span>, <span class="ident">Ready</span>};
|
||
<span class="kw">use</span> <span class="ident">actix_web</span>::{
|
||
<span class="ident">body</span>::{<span class="ident">EitherBody</span>, <span class="ident">MessageBody</span>},
|
||
<span class="ident">dev</span>::{<span class="ident">RequestHead</span>, <span class="ident">Service</span>, <span class="ident">ServiceRequest</span>, <span class="ident">ServiceResponse</span>, <span class="ident">Transform</span>},
|
||
<span class="ident">error::HttpError</span>,
|
||
<span class="ident">http</span>::{
|
||
<span class="ident">header</span>::{<span class="ident">HeaderName</span>, <span class="ident">HeaderValue</span>},
|
||
<span class="ident">Method</span>, <span class="ident">Uri</span>,
|
||
},
|
||
<span class="ident">Either</span>, <span class="ident">Error</span>, <span class="prelude-ty">Result</span>,
|
||
};
|
||
<span class="kw">use</span> <span class="ident">log::error</span>;
|
||
<span class="kw">use</span> <span class="ident">once_cell::sync::Lazy</span>;
|
||
<span class="kw">use</span> <span class="ident">smallvec::smallvec</span>;
|
||
|
||
<span class="kw">use</span> <span class="kw">crate</span>::{<span class="ident">AllOrSome</span>, <span class="ident">CorsError</span>, <span class="ident">CorsMiddleware</span>, <span class="ident">Inner</span>, <span class="ident">OriginFn</span>};
|
||
|
||
<span class="doccomment">/// Convenience for getting mut refs to inner. Cleaner than `Rc::get_mut`.</span>
|
||
<span class="doccomment">/// Additionally, always causes first error (if any) to be reported during initialization.</span>
|
||
<span class="kw">fn</span> <span class="ident">cors</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span>(
|
||
<span class="ident">inner</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="ident">Rc</span><span class="op"><</span><span class="ident">Inner</span><span class="op">></span>,
|
||
<span class="ident">err</span>: <span class="kw-2">&</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Either</span><span class="op"><</span><span class="ident">HttpError</span>, <span class="ident">CorsError</span><span class="op">></span><span class="op">></span>,
|
||
) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'a</span> <span class="kw-2">mut</span> <span class="ident">Inner</span><span class="op">></span> {
|
||
<span class="kw">if</span> <span class="ident">err</span>.<span class="ident">is_some</span>() {
|
||
<span class="kw">return</span> <span class="prelude-val">None</span>;
|
||
}
|
||
|
||
<span class="ident">Rc::get_mut</span>(<span class="ident">inner</span>)
|
||
}
|
||
|
||
<span class="kw">static</span> <span class="ident">ALL_METHODS_SET</span>: <span class="ident">Lazy</span><span class="op"><</span><span class="ident">HashSet</span><span class="op"><</span><span class="ident">Method</span><span class="op">></span><span class="op">></span> <span class="op">=</span> <span class="ident">Lazy::new</span>(<span class="op">|</span><span class="op">|</span> {
|
||
<span class="ident">HashSet::from_iter</span>(<span class="macro">vec!</span>[
|
||
<span class="ident">Method::GET</span>,
|
||
<span class="ident">Method::POST</span>,
|
||
<span class="ident">Method::PUT</span>,
|
||
<span class="ident">Method::DELETE</span>,
|
||
<span class="ident">Method::HEAD</span>,
|
||
<span class="ident">Method::OPTIONS</span>,
|
||
<span class="ident">Method::CONNECT</span>,
|
||
<span class="ident">Method::PATCH</span>,
|
||
<span class="ident">Method::TRACE</span>,
|
||
])
|
||
});
|
||
|
||
<span class="doccomment">/// Builder for CORS middleware.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// To construct a CORS middleware, call [`Cors::default()`] to create a blank, restrictive builder.</span>
|
||
<span class="doccomment">/// Then use any of the builder methods to customize CORS behavior.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// The alternative [`Cors::permissive()`] constructor is available for local development, allowing</span>
|
||
<span class="doccomment">/// all origins and headers, etc. **The permissive constructor should not be used in production.**</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Errors</span>
|
||
<span class="doccomment">/// Errors surface in the middleware initialization phase. This means that, if you have logs enabled</span>
|
||
<span class="doccomment">/// in Actix Web (using `env_logger` or other crate that exposes logs from the `log` crate), error</span>
|
||
<span class="doccomment">/// messages will outline what is wrong with the CORS configuration in the server logs and the</span>
|
||
<span class="doccomment">/// server will fail to start up or serve requests.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Example</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="doccomment">/// use actix_cors::Cors;</span>
|
||
<span class="doccomment">/// use actix_web::http::header;</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// let cors = Cors::default()</span>
|
||
<span class="doccomment">/// .allowed_origin("https://www.rust-lang.org")</span>
|
||
<span class="doccomment">/// .allowed_methods(vec!["GET", "POST"])</span>
|
||
<span class="doccomment">/// .allowed_headers(vec![header::AUTHORIZATION, header::ACCEPT])</span>
|
||
<span class="doccomment">/// .allowed_header(header::CONTENT_TYPE)</span>
|
||
<span class="doccomment">/// .max_age(3600);</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// // `cors` can now be used in `App::wrap`.</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Cors</span> {
|
||
<span class="ident">inner</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">Inner</span><span class="op">></span>,
|
||
<span class="ident">error</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Either</span><span class="op"><</span><span class="ident">HttpError</span>, <span class="ident">CorsError</span><span class="op">></span><span class="op">></span>,
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">Cors</span> {
|
||
<span class="doccomment">/// A very permissive set of default for quick development. Not recommended for production use.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// *All* origins, methods, request headers and exposed headers allowed. Credentials supported.</span>
|
||
<span class="doccomment">/// Max age 1 hour. Does not send wildcard.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">permissive</span>() -> <span class="self">Self</span> {
|
||
<span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="ident">Inner</span> {
|
||
<span class="ident">allowed_origins</span>: <span class="ident">AllOrSome::All</span>,
|
||
<span class="ident">allowed_origins_fns</span>: <span class="macro">smallvec!</span>[],
|
||
|
||
<span class="ident">allowed_methods</span>: <span class="ident">ALL_METHODS_SET</span>.<span class="ident">clone</span>(),
|
||
<span class="ident">allowed_methods_baked</span>: <span class="prelude-val">None</span>,
|
||
|
||
<span class="ident">allowed_headers</span>: <span class="ident">AllOrSome::All</span>,
|
||
<span class="ident">allowed_headers_baked</span>: <span class="prelude-val">None</span>,
|
||
|
||
<span class="ident">expose_headers</span>: <span class="ident">AllOrSome::All</span>,
|
||
<span class="ident">expose_headers_baked</span>: <span class="prelude-val">None</span>,
|
||
|
||
<span class="ident">max_age</span>: <span class="prelude-val">Some</span>(<span class="number">3600</span>),
|
||
<span class="ident">preflight</span>: <span class="bool-val">true</span>,
|
||
<span class="ident">send_wildcard</span>: <span class="bool-val">false</span>,
|
||
<span class="ident">supports_credentials</span>: <span class="bool-val">true</span>,
|
||
<span class="ident">vary_header</span>: <span class="bool-val">true</span>,
|
||
};
|
||
|
||
<span class="ident">Cors</span> {
|
||
<span class="ident">inner</span>: <span class="ident">Rc::new</span>(<span class="ident">inner</span>),
|
||
<span class="ident">error</span>: <span class="prelude-val">None</span>,
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Resets allowed origin list to a state where any origin is accepted.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// See [`Cors::allowed_origin`] for more info on allowed origins.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allow_any_origin</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_origins</span> <span class="op">=</span> <span class="ident">AllOrSome::All</span>;
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Add an origin that is allowed to make requests.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// By default, requests from all origins are accepted by CORS logic. This method allows to</span>
|
||
<span class="doccomment">/// specify a finite set of origins to verify the value of the `Origin` request header.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// These are `origin-or-null` types in the [Fetch Standard].</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// When this list is set, the client's `Origin` request header will be checked in a</span>
|
||
<span class="doccomment">/// case-sensitive manner.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// When all origins are allowed and `send_wildcard` is set, `*` will be sent in the</span>
|
||
<span class="doccomment">/// `Access-Control-Allow-Origin` response header. If `send_wildcard` is not set, the client's</span>
|
||
<span class="doccomment">/// `Origin` request header will be echoed back in the `Access-Control-Allow-Origin`</span>
|
||
<span class="doccomment">/// response header.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If the origin of the request doesn't match any allowed origins and at least one</span>
|
||
<span class="doccomment">/// `allowed_origin_fn` function is set, these functions will be used to determinate</span>
|
||
<span class="doccomment">/// allowed origins.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Initialization Errors</span>
|
||
<span class="doccomment">/// - If supplied origin is not valid uri</span>
|
||
<span class="doccomment">/// - If supplied origin is a wildcard (`*`). [`Cors::send_wildcard`] should be used instead.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [Fetch Standard]: https://fetch.spec.whatwg.org/#origin-header</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allowed_origin</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">origin</span>: <span class="kw-2">&</span><span class="ident">str</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="kw">match</span> <span class="ident">TryInto</span>::<span class="op"><</span><span class="ident">Uri</span><span class="op">></span><span class="ident">::try_into</span>(<span class="ident">origin</span>) {
|
||
<span class="prelude-val">Ok</span>(<span class="kw">_</span>) <span class="kw">if</span> <span class="ident">origin</span> <span class="op">==</span> <span class="string">"*"</span> => {
|
||
<span class="macro">error!</span>(<span class="string">"Wildcard in `allowed_origin` is not allowed. Use `send_wildcard`."</span>);
|
||
<span class="self">self</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Either::Right</span>(<span class="ident">CorsError::WildcardOrigin</span>));
|
||
}
|
||
|
||
<span class="prelude-val">Ok</span>(<span class="kw">_</span>) => {
|
||
<span class="kw">if</span> <span class="ident">cors</span>.<span class="ident">allowed_origins</span>.<span class="ident">is_all</span>() {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_origins</span> <span class="op">=</span> <span class="ident">AllOrSome::Some</span>(<span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>));
|
||
}
|
||
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">origins</span>) <span class="op">=</span> <span class="ident">cors</span>.<span class="ident">allowed_origins</span>.<span class="ident">as_mut</span>() {
|
||
<span class="comment">// any uri is a valid header value</span>
|
||
<span class="kw">let</span> <span class="ident">hv</span> <span class="op">=</span> <span class="ident">origin</span>.<span class="ident">try_into</span>().<span class="ident">unwrap</span>();
|
||
<span class="ident">origins</span>.<span class="ident">insert</span>(<span class="ident">hv</span>);
|
||
}
|
||
}
|
||
|
||
<span class="prelude-val">Err</span>(<span class="ident">err</span>) => {
|
||
<span class="self">self</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Either::Left</span>(<span class="ident">err</span>.<span class="ident">into</span>()));
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Determinate allowed origins by processing requests which didn't match any origins specified</span>
|
||
<span class="doccomment">/// in the `allowed_origin`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// The function will receive two parameters, the Origin header value, and the `RequestHead` of</span>
|
||
<span class="doccomment">/// each request, which can be used to determine whether to allow the request or not.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If the function returns `true`, the client's `Origin` request header will be echoed back</span>
|
||
<span class="doccomment">/// into the `Access-Control-Allow-Origin` response header.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allowed_origin_fn</span><span class="op"><</span><span class="ident">F</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">f</span>: <span class="ident">F</span>) -> <span class="ident">Cors</span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">F</span>: (<span class="ident">Fn</span>(<span class="kw-2">&</span><span class="ident">HeaderValue</span>, <span class="kw-2">&</span><span class="ident">RequestHead</span>) -> <span class="ident">bool</span>) <span class="op">+</span> <span class="lifetime">'static</span>,
|
||
{
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_origins_fns</span>.<span class="ident">push</span>(<span class="ident">OriginFn</span> {
|
||
<span class="ident">boxed_fn</span>: <span class="ident">Rc::new</span>(<span class="ident">f</span>),
|
||
});
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Resets allowed methods list to all methods.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// See [`Cors::allowed_methods`] for more info on allowed methods.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allow_any_method</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_methods</span> <span class="op">=</span> <span class="ident">ALL_METHODS_SET</span>.<span class="ident">clone</span>();
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Set a list of methods which allowed origins can perform.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// These will be sent in the `Access-Control-Allow-Methods` response header as specified in</span>
|
||
<span class="doccomment">/// the [Fetch Standard CORS protocol].</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Defaults to `[GET, HEAD, POST, OPTIONS, PUT, PATCH, DELETE]`</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [Fetch Standard CORS protocol]: https://fetch.spec.whatwg.org/#http-cors-protocol</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allowed_methods</span><span class="op"><</span><span class="ident">U</span>, <span class="ident">M</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">methods</span>: <span class="ident">U</span>) -> <span class="ident">Cors</span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">U</span>: <span class="ident">IntoIterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">M</span><span class="op">></span>,
|
||
<span class="ident">M</span>: <span class="ident">TryInto</span><span class="op"><</span><span class="ident">Method</span><span class="op">></span>,
|
||
<span class="op"><</span><span class="ident">M</span> <span class="kw">as</span> <span class="ident">TryInto</span><span class="op"><</span><span class="ident">Method</span><span class="op">></span><span class="op">></span><span class="ident">::Error</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">HttpError</span><span class="op">></span>,
|
||
{
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="kw">for</span> <span class="ident">m</span> <span class="kw">in</span> <span class="ident">methods</span> {
|
||
<span class="kw">match</span> <span class="ident">m</span>.<span class="ident">try_into</span>() {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">method</span>) => {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_methods</span>.<span class="ident">insert</span>(<span class="ident">method</span>);
|
||
}
|
||
|
||
<span class="prelude-val">Err</span>(<span class="ident">err</span>) => {
|
||
<span class="self">self</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Either::Left</span>(<span class="ident">err</span>.<span class="ident">into</span>()));
|
||
<span class="kw">break</span>;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Resets allowed request header list to a state where any header is accepted.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// See [`Cors::allowed_headers`] for more info on allowed request headers.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allow_any_header</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_headers</span> <span class="op">=</span> <span class="ident">AllOrSome::All</span>;
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Add an allowed request header.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// See [`Cors::allowed_headers`] for more info on allowed request headers.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allowed_header</span><span class="op"><</span><span class="ident">H</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">header</span>: <span class="ident">H</span>) -> <span class="ident">Cors</span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">H</span>: <span class="ident">TryInto</span><span class="op"><</span><span class="ident">HeaderName</span><span class="op">></span>,
|
||
<span class="op"><</span><span class="ident">H</span> <span class="kw">as</span> <span class="ident">TryInto</span><span class="op"><</span><span class="ident">HeaderName</span><span class="op">></span><span class="op">></span><span class="ident">::Error</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">HttpError</span><span class="op">></span>,
|
||
{
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="kw">match</span> <span class="ident">header</span>.<span class="ident">try_into</span>() {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">method</span>) => {
|
||
<span class="kw">if</span> <span class="ident">cors</span>.<span class="ident">allowed_headers</span>.<span class="ident">is_all</span>() {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_headers</span> <span class="op">=</span> <span class="ident">AllOrSome::Some</span>(<span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>));
|
||
}
|
||
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">AllOrSome::Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">headers</span>) <span class="op">=</span> <span class="ident">cors</span>.<span class="ident">allowed_headers</span> {
|
||
<span class="ident">headers</span>.<span class="ident">insert</span>(<span class="ident">method</span>);
|
||
}
|
||
}
|
||
|
||
<span class="prelude-val">Err</span>(<span class="ident">err</span>) => <span class="self">self</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Either::Left</span>(<span class="ident">err</span>.<span class="ident">into</span>())),
|
||
}
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Set a list of request header field names which can be used when this resource is accessed by</span>
|
||
<span class="doccomment">/// allowed origins.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If `All` is set, whatever is requested by the client in `Access-Control-Request-Headers`</span>
|
||
<span class="doccomment">/// will be echoed back in the `Access-Control-Allow-Headers` header as specified in</span>
|
||
<span class="doccomment">/// the [Fetch Standard CORS protocol].</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Defaults to `All`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [Fetch Standard CORS protocol]: https://fetch.spec.whatwg.org/#http-cors-protocol</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allowed_headers</span><span class="op"><</span><span class="ident">U</span>, <span class="ident">H</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">headers</span>: <span class="ident">U</span>) -> <span class="ident">Cors</span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">U</span>: <span class="ident">IntoIterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">H</span><span class="op">></span>,
|
||
<span class="ident">H</span>: <span class="ident">TryInto</span><span class="op"><</span><span class="ident">HeaderName</span><span class="op">></span>,
|
||
<span class="op"><</span><span class="ident">H</span> <span class="kw">as</span> <span class="ident">TryInto</span><span class="op"><</span><span class="ident">HeaderName</span><span class="op">></span><span class="op">></span><span class="ident">::Error</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">HttpError</span><span class="op">></span>,
|
||
{
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="kw">for</span> <span class="ident">h</span> <span class="kw">in</span> <span class="ident">headers</span> {
|
||
<span class="kw">match</span> <span class="ident">h</span>.<span class="ident">try_into</span>() {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">method</span>) => {
|
||
<span class="kw">if</span> <span class="ident">cors</span>.<span class="ident">allowed_headers</span>.<span class="ident">is_all</span>() {
|
||
<span class="ident">cors</span>.<span class="ident">allowed_headers</span> <span class="op">=</span> <span class="ident">AllOrSome::Some</span>(<span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>));
|
||
}
|
||
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">AllOrSome::Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">headers</span>) <span class="op">=</span> <span class="ident">cors</span>.<span class="ident">allowed_headers</span> {
|
||
<span class="ident">headers</span>.<span class="ident">insert</span>(<span class="ident">method</span>);
|
||
}
|
||
}
|
||
<span class="prelude-val">Err</span>(<span class="ident">err</span>) => {
|
||
<span class="self">self</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Either::Left</span>(<span class="ident">err</span>.<span class="ident">into</span>()));
|
||
<span class="kw">break</span>;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Resets exposed response header list to a state where any header is accepted.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// See [`Cors::expose_headers`] for more info on exposed response headers.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">expose_any_header</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">expose_headers</span> <span class="op">=</span> <span class="ident">AllOrSome::All</span>;
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Set a list of headers which are safe to expose to the API of a CORS API specification.</span>
|
||
<span class="doccomment">/// This corresponds to the `Access-Control-Expose-Headers` response header as specified in</span>
|
||
<span class="doccomment">/// the [Fetch Standard CORS protocol].</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This defaults to an empty set.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [Fetch Standard CORS protocol]: https://fetch.spec.whatwg.org/#http-cors-protocol</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">expose_headers</span><span class="op"><</span><span class="ident">U</span>, <span class="ident">H</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">headers</span>: <span class="ident">U</span>) -> <span class="ident">Cors</span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">U</span>: <span class="ident">IntoIterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">H</span><span class="op">></span>,
|
||
<span class="ident">H</span>: <span class="ident">TryInto</span><span class="op"><</span><span class="ident">HeaderName</span><span class="op">></span>,
|
||
<span class="op"><</span><span class="ident">H</span> <span class="kw">as</span> <span class="ident">TryInto</span><span class="op"><</span><span class="ident">HeaderName</span><span class="op">></span><span class="op">></span><span class="ident">::Error</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">HttpError</span><span class="op">></span>,
|
||
{
|
||
<span class="kw">for</span> <span class="ident">h</span> <span class="kw">in</span> <span class="ident">headers</span> {
|
||
<span class="kw">match</span> <span class="ident">h</span>.<span class="ident">try_into</span>() {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">header</span>) => {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="kw">if</span> <span class="ident">cors</span>.<span class="ident">expose_headers</span>.<span class="ident">is_all</span>() {
|
||
<span class="ident">cors</span>.<span class="ident">expose_headers</span> <span class="op">=</span> <span class="ident">AllOrSome::Some</span>(<span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>));
|
||
}
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">AllOrSome::Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">headers</span>) <span class="op">=</span> <span class="ident">cors</span>.<span class="ident">expose_headers</span> {
|
||
<span class="ident">headers</span>.<span class="ident">insert</span>(<span class="ident">header</span>);
|
||
}
|
||
}
|
||
}
|
||
<span class="prelude-val">Err</span>(<span class="ident">err</span>) => {
|
||
<span class="self">self</span>.<span class="ident">error</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">Either::Left</span>(<span class="ident">err</span>.<span class="ident">into</span>()));
|
||
<span class="kw">break</span>;
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Set a maximum time (in seconds) for which this CORS request maybe cached.</span>
|
||
<span class="doccomment">/// This value is set as the `Access-Control-Max-Age` header as specified in</span>
|
||
<span class="doccomment">/// the [Fetch Standard CORS protocol].</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Pass a number (of seconds) or use None to disable sending max age header.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [Fetch Standard CORS protocol]: https://fetch.spec.whatwg.org/#http-cors-protocol</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">max_age</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">max_age</span>: <span class="kw">impl</span> <span class="ident">Into</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span><span class="op">></span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">max_age</span> <span class="op">=</span> <span class="ident">max_age</span>.<span class="ident">into</span>()
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Set to use wildcard origins.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If send wildcard is set and the `allowed_origins` parameter is `All`, a wildcard</span>
|
||
<span class="doccomment">/// `Access-Control-Allow-Origin` response header is sent, rather than the request’s</span>
|
||
<span class="doccomment">/// `Origin` header.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This **CANNOT** be used in conjunction with `allowed_origins` set to `All` and</span>
|
||
<span class="doccomment">/// `allow_credentials` set to `true`. Depending on the mode of usage, this will either result</span>
|
||
<span class="doccomment">/// in an `CorsError::CredentialsWithWildcardOrigin` error during actix launch or runtime.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Defaults to `false`.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">send_wildcard</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">send_wildcard</span> <span class="op">=</span> <span class="bool-val">true</span>
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Allows users to make authenticated requests</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If true, injects the `Access-Control-Allow-Credentials` header in responses. This allows</span>
|
||
<span class="doccomment">/// cookies and credentials to be submitted across domains as specified in</span>
|
||
<span class="doccomment">/// the [Fetch Standard CORS protocol].</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This option cannot be used in conjunction with an `allowed_origin` set to `All` and</span>
|
||
<span class="doccomment">/// `send_wildcards` set to `true`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Defaults to `false`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// A server initialization error will occur if credentials are allowed, but the Origin is set</span>
|
||
<span class="doccomment">/// to send wildcards (`*`); this is not allowed by the CORS protocol.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [Fetch Standard CORS protocol]: https://fetch.spec.whatwg.org/#http-cors-protocol</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">supports_credentials</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">supports_credentials</span> <span class="op">=</span> <span class="bool-val">true</span>
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Disable `Vary` header support.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// When enabled the header `Vary: Origin` will be returned as per the Fetch Standard</span>
|
||
<span class="doccomment">/// implementation guidelines.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Setting this header when the `Access-Control-Allow-Origin` is dynamically generated</span>
|
||
<span class="doccomment">/// (eg. when there is more than one allowed origin, and an Origin other than '*' is returned)</span>
|
||
<span class="doccomment">/// informs CDNs and other caches that the CORS headers are dynamic, and cannot be cached.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// By default, `Vary` header support is enabled.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">disable_vary_header</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">vary_header</span> <span class="op">=</span> <span class="bool-val">false</span>
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Disable support for preflight requests.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// When enabled CORS middleware automatically handles `OPTIONS` requests.</span>
|
||
<span class="doccomment">/// This is useful for application level middleware.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// By default *preflight* support is enabled.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">disable_preflight</span>(<span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="ident">Cors</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">cors</span>) <span class="op">=</span> <span class="ident">cors</span>(<span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">inner</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">error</span>) {
|
||
<span class="ident">cors</span>.<span class="ident">preflight</span> <span class="op">=</span> <span class="bool-val">false</span>
|
||
}
|
||
|
||
<span class="self">self</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">Default</span> <span class="kw">for</span> <span class="ident">Cors</span> {
|
||
<span class="doccomment">/// A restrictive (security paranoid) set of defaults.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// *No* allowed origins, methods, request headers or exposed headers. Credentials</span>
|
||
<span class="doccomment">/// not supported. No max age (will use browser's default).</span>
|
||
<span class="kw">fn</span> <span class="ident">default</span>() -> <span class="ident">Cors</span> {
|
||
<span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="ident">Inner</span> {
|
||
<span class="ident">allowed_origins</span>: <span class="ident">AllOrSome::Some</span>(<span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>)),
|
||
<span class="ident">allowed_origins_fns</span>: <span class="macro">smallvec!</span>[],
|
||
|
||
<span class="ident">allowed_methods</span>: <span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>),
|
||
<span class="ident">allowed_methods_baked</span>: <span class="prelude-val">None</span>,
|
||
|
||
<span class="ident">allowed_headers</span>: <span class="ident">AllOrSome::Some</span>(<span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>)),
|
||
<span class="ident">allowed_headers_baked</span>: <span class="prelude-val">None</span>,
|
||
|
||
<span class="ident">expose_headers</span>: <span class="ident">AllOrSome::Some</span>(<span class="ident">HashSet::with_capacity</span>(<span class="number">8</span>)),
|
||
<span class="ident">expose_headers_baked</span>: <span class="prelude-val">None</span>,
|
||
|
||
<span class="ident">max_age</span>: <span class="prelude-val">None</span>,
|
||
<span class="ident">preflight</span>: <span class="bool-val">true</span>,
|
||
<span class="ident">send_wildcard</span>: <span class="bool-val">false</span>,
|
||
<span class="ident">supports_credentials</span>: <span class="bool-val">false</span>,
|
||
<span class="ident">vary_header</span>: <span class="bool-val">true</span>,
|
||
};
|
||
|
||
<span class="ident">Cors</span> {
|
||
<span class="ident">inner</span>: <span class="ident">Rc::new</span>(<span class="ident">inner</span>),
|
||
<span class="ident">error</span>: <span class="prelude-val">None</span>,
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">S</span>, <span class="ident">B</span><span class="op">></span> <span class="ident">Transform</span><span class="op"><</span><span class="ident">S</span>, <span class="ident">ServiceRequest</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Cors</span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">S</span>: <span class="ident">Service</span><span class="op"><</span><span class="ident">ServiceRequest</span>, <span class="ident">Response</span> <span class="op">=</span> <span class="ident">ServiceResponse</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>, <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Error</span><span class="op">></span>,
|
||
<span class="ident">S::Future</span>: <span class="lifetime">'static</span>,
|
||
|
||
<span class="ident">B</span>: <span class="ident">MessageBody</span> <span class="op">+</span> <span class="lifetime">'static</span>,
|
||
<span class="ident">B::Error</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Error</span><span class="op">></span>,
|
||
{
|
||
<span class="kw">type</span> <span class="ident">Response</span> <span class="op">=</span> <span class="ident">ServiceResponse</span><span class="op"><</span><span class="ident">EitherBody</span><span class="op"><</span><span class="ident">B</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">Error</span>;
|
||
<span class="kw">type</span> <span class="ident">InitError</span> <span class="op">=</span> ();
|
||
<span class="kw">type</span> <span class="ident">Transform</span> <span class="op">=</span> <span class="ident">CorsMiddleware</span><span class="op"><</span><span class="ident">S</span><span class="op">></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="ident"><span class="self">Self</span>::Transform</span>, <span class="ident"><span class="self">Self</span>::InitError</span><span class="op">></span><span class="op">></span>;
|
||
|
||
<span class="kw">fn</span> <span class="ident">new_transform</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">service</span>: <span class="ident">S</span>) -> <span class="ident"><span class="self">Self</span>::Future</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="ident">err</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">error</span> {
|
||
<span class="kw">match</span> <span class="ident">err</span> {
|
||
<span class="ident">Either::Left</span>(<span class="ident">err</span>) => <span class="macro">error!</span>(<span class="string">"{}"</span>, <span class="ident">err</span>),
|
||
<span class="ident">Either::Right</span>(<span class="ident">err</span>) => <span class="macro">error!</span>(<span class="string">"{}"</span>, <span class="ident">err</span>),
|
||
}
|
||
|
||
<span class="kw">return</span> <span class="ident">future::err</span>(());
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">inner</span> <span class="op">=</span> <span class="ident">Rc::clone</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">inner</span>);
|
||
|
||
<span class="kw">if</span> <span class="ident">inner</span>.<span class="ident">supports_credentials</span> <span class="op">&&</span> <span class="ident">inner</span>.<span class="ident">send_wildcard</span> <span class="op">&&</span> <span class="ident">inner</span>.<span class="ident">allowed_origins</span>.<span class="ident">is_all</span>() {
|
||
<span class="macro">error!</span>(
|
||
<span class="string">"Illegal combination of CORS options: credentials can not be supported when all \
|
||
origins are allowed and `send_wildcard` is enabled."</span>
|
||
);
|
||
<span class="kw">return</span> <span class="ident">future::err</span>(());
|
||
}
|
||
|
||
<span class="comment">// bake allowed headers value if Some and not empty</span>
|
||
<span class="kw">match</span> <span class="ident">inner</span>.<span class="ident">allowed_headers</span>.<span class="ident">as_ref</span>() {
|
||
<span class="prelude-val">Some</span>(<span class="ident">header_set</span>) <span class="kw">if</span> <span class="op">!</span><span class="ident">header_set</span>.<span class="ident">is_empty</span>() => {
|
||
<span class="kw">let</span> <span class="ident">allowed_headers_str</span> <span class="op">=</span> <span class="ident">intersperse_header_values</span>(<span class="ident">header_set</span>);
|
||
<span class="ident">Rc::make_mut</span>(<span class="kw-2">&mut</span> <span class="ident">inner</span>).<span class="ident">allowed_headers_baked</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">allowed_headers_str</span>);
|
||
}
|
||
<span class="kw">_</span> => {}
|
||
}
|
||
|
||
<span class="comment">// bake allowed methods value if not empty</span>
|
||
<span class="kw">if</span> <span class="op">!</span><span class="ident">inner</span>.<span class="ident">allowed_methods</span>.<span class="ident">is_empty</span>() {
|
||
<span class="kw">let</span> <span class="ident">allowed_methods_str</span> <span class="op">=</span> <span class="ident">intersperse_header_values</span>(<span class="kw-2">&</span><span class="ident">inner</span>.<span class="ident">allowed_methods</span>);
|
||
<span class="ident">Rc::make_mut</span>(<span class="kw-2">&mut</span> <span class="ident">inner</span>).<span class="ident">allowed_methods_baked</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">allowed_methods_str</span>);
|
||
}
|
||
|
||
<span class="comment">// bake exposed headers value if Some and not empty</span>
|
||
<span class="kw">match</span> <span class="ident">inner</span>.<span class="ident">expose_headers</span>.<span class="ident">as_ref</span>() {
|
||
<span class="prelude-val">Some</span>(<span class="ident">header_set</span>) <span class="kw">if</span> <span class="op">!</span><span class="ident">header_set</span>.<span class="ident">is_empty</span>() => {
|
||
<span class="kw">let</span> <span class="ident">expose_headers_str</span> <span class="op">=</span> <span class="ident">intersperse_header_values</span>(<span class="ident">header_set</span>);
|
||
<span class="ident">Rc::make_mut</span>(<span class="kw-2">&mut</span> <span class="ident">inner</span>).<span class="ident">expose_headers_baked</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">expose_headers_str</span>);
|
||
}
|
||
<span class="kw">_</span> => {}
|
||
}
|
||
|
||
<span class="ident">future::ok</span>(<span class="ident">CorsMiddleware</span> { <span class="ident">service</span>, <span class="ident">inner</span> })
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Only call when values are guaranteed to be valid header values and set is not empty.</span>
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">intersperse_header_values</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="ident">val_set</span>: <span class="kw-2">&</span><span class="ident">HashSet</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>) -> <span class="ident">HeaderValue</span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">T</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">str</span><span class="op">></span>,
|
||
{
|
||
<span class="macro">debug_assert!</span>(
|
||
<span class="op">!</span><span class="ident">val_set</span>.<span class="ident">is_empty</span>(),
|
||
<span class="string">"only call `intersperse_header_values` when set is not empty"</span>
|
||
);
|
||
|
||
<span class="ident">val_set</span>
|
||
.<span class="ident">iter</span>()
|
||
.<span class="ident">fold</span>(<span class="ident">String::with_capacity</span>(<span class="number">64</span>), <span class="op">|</span><span class="kw-2">mut</span> <span class="ident">acc</span>, <span class="ident">val</span><span class="op">|</span> {
|
||
<span class="ident">acc</span>.<span class="ident">push_str</span>(<span class="string">", "</span>);
|
||
<span class="ident">acc</span>.<span class="ident">push_str</span>(<span class="ident">val</span>.<span class="ident">as_ref</span>());
|
||
<span class="ident">acc</span>
|
||
})
|
||
<span class="comment">// set is not empty so string will always have leading ", " to trim</span>
|
||
[<span class="number">2</span>..]
|
||
.<span class="ident">try_into</span>()
|
||
<span class="comment">// all method names are valid header values</span>
|
||
.<span class="ident">unwrap</span>()
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
|
||
<span class="kw">mod</span> <span class="ident">test</span> {
|
||
<span class="kw">use</span> <span class="ident">std::convert</span>::{<span class="ident">Infallible</span>, <span class="ident">TryInto</span>};
|
||
|
||
<span class="kw">use</span> <span class="ident">actix_web</span>::{
|
||
<span class="ident">body</span>,
|
||
<span class="ident">dev</span>::{<span class="ident">fn_service</span>, <span class="ident">Transform</span>},
|
||
<span class="ident">http</span>::{<span class="ident">header::HeaderName</span>, <span class="ident">StatusCode</span>},
|
||
<span class="ident">test</span>::{<span class="self">self</span>, <span class="ident">TestRequest</span>},
|
||
<span class="ident">web::HttpResponse</span>,
|
||
};
|
||
|
||
<span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">illegal_allow_credentials</span>() {
|
||
<span class="comment">// using the permissive defaults (all origins allowed) and adding send_wildcard</span>
|
||
<span class="comment">// and supports_credentials should error on construction</span>
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">Cors::permissive</span>()
|
||
.<span class="ident">supports_credentials</span>()
|
||
.<span class="ident">send_wildcard</span>()
|
||
.<span class="ident">new_transform</span>(<span class="ident">test::ok_service</span>())
|
||
.<span class="ident">into_inner</span>()
|
||
.<span class="ident">is_err</span>());
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">actix_rt::test</span>]</span>
|
||
<span class="kw">async</span> <span class="kw">fn</span> <span class="ident">restrictive_defaults</span>() {
|
||
<span class="kw">let</span> <span class="ident">cors</span> <span class="op">=</span> <span class="ident">Cors::default</span>()
|
||
.<span class="ident">new_transform</span>(<span class="ident">test::ok_service</span>())
|
||
.<span class="kw">await</span>
|
||
.<span class="ident">unwrap</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">req</span> <span class="op">=</span> <span class="ident">TestRequest::default</span>()
|
||
.<span class="ident">insert_header</span>((<span class="string">"Origin"</span>, <span class="string">"https://www.example.com"</span>))
|
||
.<span class="ident">to_srv_request</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">resp</span> <span class="op">=</span> <span class="ident">test::call_service</span>(<span class="kw-2">&</span><span class="ident">cors</span>, <span class="ident">req</span>).<span class="kw">await</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">resp</span>.<span class="ident">status</span>(), <span class="ident">StatusCode::BAD_REQUEST</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">actix_rt::test</span>]</span>
|
||
<span class="kw">async</span> <span class="kw">fn</span> <span class="ident">allowed_header_try_from</span>() {
|
||
<span class="kw">let</span> <span class="ident">_cors</span> <span class="op">=</span> <span class="ident">Cors::default</span>().<span class="ident">allowed_header</span>(<span class="string">"Content-Type"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">actix_rt::test</span>]</span>
|
||
<span class="kw">async</span> <span class="kw">fn</span> <span class="ident">allowed_header_try_into</span>() {
|
||
<span class="kw">struct</span> <span class="ident">ContentType</span>;
|
||
|
||
<span class="kw">impl</span> <span class="ident">TryInto</span><span class="op"><</span><span class="ident">HeaderName</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ContentType</span> {
|
||
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Infallible</span>;
|
||
|
||
<span class="kw">fn</span> <span class="ident">try_into</span>(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">HeaderName</span>, <span class="ident"><span class="self">Self</span>::Error</span><span class="op">></span> {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">HeaderName::from_static</span>(<span class="string">"content-type"</span>))
|
||
}
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="ident">_cors</span> <span class="op">=</span> <span class="ident">Cors::default</span>().<span class="ident">allowed_header</span>(<span class="ident">ContentType</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">actix_rt::test</span>]</span>
|
||
<span class="kw">async</span> <span class="kw">fn</span> <span class="ident">middleware_generic_over_body_type</span>() {
|
||
<span class="kw">let</span> <span class="ident">srv</span> <span class="op">=</span> <span class="ident">fn_service</span>(<span class="op">|</span><span class="ident">req</span>: <span class="ident">ServiceRequest</span><span class="op">|</span> <span class="kw">async</span> <span class="kw">move</span> {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">req</span>.<span class="ident">into_response</span>(<span class="ident">HttpResponse::with_body</span>(<span class="ident">StatusCode::OK</span>, <span class="ident">body::None::new</span>())))
|
||
});
|
||
|
||
<span class="ident">Cors::default</span>().<span class="ident">new_transform</span>(<span class="ident">srv</span>).<span class="kw">await</span>.<span class="ident">unwrap</span>();
|
||
}
|
||
}
|
||
</code></pre></div>
|
||
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|
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