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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-cors/src/inner.rs`." > < meta name = "keywords" content = "rust, rustlang, rust-lang" > < title > inner.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 = "shortcut icon" href = "https://actix.rs/favicon.ico" > < 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" > ☰ < / div > < a href = '../../actix_cors/index.html' > < div class = 'logo-container rust-logo' > < img src = 'https://actix.rs/img/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 ‘ ’ ‘ ’ 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 = "kw" > use< / span > < span class = "ident" > std< / span > ::{< span class = "ident" > collections::HashSet< / span > , < span class = "ident" > convert::TryFrom< / span > , < span class = "ident" > convert::TryInto< / span > , < span class = "ident" > fmt< / span > , < span class = "ident" > rc::Rc< / span > };
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< span class = "kw" > use< / span > < span class = "ident" > actix_web< / span > ::{
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< span class = "ident" > dev::RequestHead< / span > ,
< span class = "ident" > error::Result< / span > ,
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< span class = "ident" > http< / span > ::{
< span class = "ident" > header< / span > ::{< span class = "self" > self< / span > , < span class = "ident" > HeaderName< / span > , < span class = "ident" > HeaderValue< / span > },
< span class = "ident" > Method< / span > ,
},
};
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< span class = "kw" > use< / span > < span class = "ident" > once_cell::sync::Lazy< / span > ;
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< span class = "kw" > use< / span > < span class = "ident" > smallvec::SmallVec< / span > ;
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< span class = "kw" > use< / span > < span class = "kw" > crate< / span > ::{< span class = "ident" > AllOrSome< / span > , < span class = "ident" > CorsError< / span > };
< span class = "attribute" > #[< span class = "ident" > derive< / span > (< span class = "ident" > Clone< / span > )]< / span >
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "kw" > struct< / span > < span class = "ident" > OriginFn< / span > {
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > boxed_fn< / span > : < span class = "ident" > Rc< / span > < span class = "op" > < < / span > < span class = "kw" > dyn< / 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 = "op" > -< / span > < span class = "op" > > < / span > < span class = "ident" > bool< / span > < span class = "op" > > < / span > ,
}
< span class = "kw" > impl< / span > < span class = "ident" > Default< / span > < span class = "kw" > for< / span > < span class = "ident" > OriginFn< / span > {
< span class = "doccomment" > /// Dummy default for use in tiny_vec. Do not use.< / span >
< span class = "kw" > fn< / span > < span class = "ident" > default< / span > () < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "self" > Self< / span > {
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< span class = "kw" > let< / span > < span class = "ident" > boxed_fn< / span > : < span class = "ident" > Rc< / span > < span class = "op" > < < / span > < span class = "kw" > dyn< / span > < span class = "ident" > Fn< / span > (< span class = "kw-2" > & < / span > < span class = "kw" > _< / span > , < span class = "kw-2" > & < / span > < span class = "kw" > _< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "kw" > _< / span > < span class = "op" > > < / span > < span class = "op" > =< / span > < span class = "ident" > Rc::new< / span > (< span class = "op" > |< / span > < span class = "ident" > _origin< / span > , < span class = "ident" > _req_head< / span > < span class = "op" > |< / span > < span class = "bool-val" > false< / span > );
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< span class = "self" > Self< / span > { < span class = "ident" > boxed_fn< / span > }
}
}
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< span class = "kw" > impl< / span > < span class = "ident" > fmt::Debug< / span > < span class = "kw" > for< / span > < span class = "ident" > OriginFn< / span > {
< 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" > & < / 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 = "op" > -< / span > < span class = "op" > > < / span > < span class = "ident" > fmt::Result< / span > {
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< span class = "ident" > f< / span > .< span class = "ident" > write_str< / span > (< span class = "string" > " origin_fn" < / span > )
}
}
< span class = "doccomment" > /// Try to parse header value as HTTP method.< / span >
< span class = "kw" > fn< / span > < span class = "ident" > header_value_try_into_method< / span > (< span class = "ident" > hdr< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > HeaderValue< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "prelude-ty" > Option< / span > < span class = "op" > < < / span > < span class = "ident" > Method< / span > < span class = "op" > > < / span > {
< span class = "ident" > hdr< / span > .< span class = "ident" > to_str< / span > ()
.< span class = "ident" > ok< / span > ()
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.< span class = "ident" > and_then< / span > (< span class = "op" > |< / span > < span class = "ident" > meth< / span > < span class = "op" > |< / span > < span class = "ident" > Method::try_from< / span > (< span class = "ident" > meth< / span > ).< span class = "ident" > ok< / span > ())
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}
< 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" > crate< / span > ) < span class = "kw" > struct< / span > < span class = "ident" > Inner< / span > {
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > allowed_origins< / span > : < span class = "ident" > AllOrSome< / span > < span class = "op" > < < / span > < span class = "ident" > HashSet< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderValue< / span > < span class = "op" > > < / span > < span class = "op" > > < / span > ,
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< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > allowed_origins_fns< / span > : < span class = "ident" > SmallVec< / span > < span class = "op" > < < / span > [< span class = "ident" > OriginFn< / span > ; < span class = "number" > 4< / span > ]< span class = "op" > > < / span > ,
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< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > allowed_methods< / span > : < span class = "ident" > HashSet< / span > < span class = "op" > < < / span > < span class = "ident" > Method< / span > < span class = "op" > > < / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > allowed_methods_baked< / span > : < span class = "prelude-ty" > Option< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderValue< / span > < span class = "op" > > < / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > allowed_headers< / span > : < span class = "ident" > AllOrSome< / span > < span class = "op" > < < / span > < span class = "ident" > HashSet< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderName< / span > < span class = "op" > > < / span > < span class = "op" > > < / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > allowed_headers_baked< / span > : < span class = "prelude-ty" > Option< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderValue< / span > < span class = "op" > > < / span > ,
< span class = "doccomment" > /// `All` will echo back `Access-Control-Request-Header` list.< / span >
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > expose_headers< / span > : < span class = "ident" > AllOrSome< / span > < span class = "op" > < < / span > < span class = "ident" > HashSet< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderName< / span > < span class = "op" > > < / span > < span class = "op" > > < / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > expose_headers_baked< / span > : < span class = "prelude-ty" > Option< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderValue< / span > < span class = "op" > > < / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > max_age< / span > : < span class = "prelude-ty" > Option< / span > < span class = "op" > < < / span > < span class = "ident" > usize< / span > < span class = "op" > > < / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > preflight< / span > : < span class = "ident" > bool< / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > send_wildcard< / span > : < span class = "ident" > bool< / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > supports_credentials< / span > : < span class = "ident" > bool< / span > ,
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "ident" > vary_header< / span > : < span class = "ident" > bool< / span > ,
}
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< span class = "kw" > static< / span > < span class = "ident" > EMPTY_ORIGIN_SET< / span > : < span class = "ident" > Lazy< / span > < span class = "op" > < < / span > < span class = "ident" > HashSet< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderValue< / span > < span class = "op" > > < / span > < span class = "op" > > < / span > < span class = "op" > =< / span > < span class = "ident" > Lazy::new< / span > (< span class = "ident" > HashSet::new< / span > );
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< span class = "kw" > impl< / span > < span class = "ident" > Inner< / span > {
< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "kw" > fn< / span > < span class = "ident" > validate_origin< / span > (< span class = "kw-2" > & < / span > < span class = "self" > self< / span > , < span class = "ident" > req< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > RequestHead< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "prelude-ty" > Result< / span > < span class = "op" > < < / span > (), < span class = "ident" > CorsError< / span > < span class = "op" > > < / span > {
< span class = "comment" > // return early if all origins are allowed or get ref to allowed origins set< / span >
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< span class = "attribute" > #[< span class = "ident" > allow< / span > (< span class = "ident" > clippy::mutable_key_type< / span > )]< / span >
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< span class = "kw" > let< / span > < span class = "ident" > allowed_origins< / span > < span class = "op" > =< / span > < span class = "kw" > match< / span > < span class = "kw-2" > & < / span > < span class = "self" > self< / span > .< span class = "ident" > allowed_origins< / span > {
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< span class = "ident" > AllOrSome::All< / span > < span class = "kw" > if< / span > < span class = "self" > self< / span > .< span class = "ident" > allowed_origins_fns< / span > .< span class = "ident" > is_empty< / span > () < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "kw" > return< / span > < span class = "prelude-val" > Ok< / span > (()),
< span class = "ident" > AllOrSome::Some< / span > (< span class = "ident" > allowed_origins< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "ident" > allowed_origins< / span > ,
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< span class = "comment" > // only function origin validators are defined< / span >
< span class = "kw" > _< / span > < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "kw-2" > & < / span > < span class = "ident" > EMPTY_ORIGIN_SET< / span > ,
};
< span class = "comment" > // get origin header and try to parse as string< / span >
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< span class = "kw" > match< / span > < span class = "ident" > req< / span > .< span class = "ident" > headers< / span > ().< span class = "ident" > get< / span > (< span class = "ident" > header::ORIGIN< / span > ) {
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< span class = "comment" > // origin header exists and is a string< / span >
< span class = "prelude-val" > Some< / span > (< span class = "ident" > origin< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > {
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< span class = "kw" > if< / span > < span class = "ident" > allowed_origins< / span > .< span class = "ident" > contains< / span > (< span class = "ident" > origin< / span > ) < span class = "op" > |< / span > < span class = "op" > |< / span > < span class = "self" > self< / span > .< span class = "ident" > validate_origin_fns< / span > (< span class = "ident" > origin< / span > , < span class = "ident" > req< / span > ) {
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< span class = "prelude-val" > Ok< / span > (())
} < span class = "kw" > else< / span > {
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< span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::OriginNotAllowed< / span > )
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}
}
< span class = "comment" > // origin header is missing< / span >
< span class = "comment" > // note: with our implementation, the origin header is required for OPTIONS request or< / span >
< span class = "comment" > // else this would be unreachable< / span >
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< span class = "prelude-val" > None< / span > < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::MissingOrigin< / span > ),
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}
}
< span class = "doccomment" > /// Accepts origin if _ANY_ functions return true. Only called when Origin exists.< / span >
< span class = "kw" > fn< / span > < span class = "ident" > validate_origin_fns< / span > (< span class = "kw-2" > & < / span > < span class = "self" > self< / span > , < span class = "ident" > origin< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > HeaderValue< / span > , < span class = "ident" > req< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > RequestHead< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "ident" > bool< / span > {
< span class = "self" > self< / span > .< span class = "ident" > allowed_origins_fns< / span >
.< span class = "ident" > iter< / span > ()
.< span class = "ident" > any< / span > (< span class = "op" > |< / span > < span class = "ident" > origin_fn< / span > < span class = "op" > |< / span > (< span class = "ident" > origin_fn< / span > .< span class = "ident" > boxed_fn< / span > )(< span class = "ident" > origin< / span > , < span class = "ident" > req< / span > ))
}
< span class = "doccomment" > /// Only called if origin exists and always after it' s validated.< / span >
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< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "kw" > fn< / span > < span class = "ident" > access_control_allow_origin< / span > (< span class = "kw-2" > & < / span > < span class = "self" > self< / span > , < span class = "ident" > req< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > RequestHead< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "prelude-ty" > Option< / span > < span class = "op" > < < / span > < span class = "ident" > HeaderValue< / span > < span class = "op" > > < / span > {
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< span class = "kw" > let< / span > < span class = "ident" > origin< / span > < span class = "op" > =< / span > < span class = "ident" > req< / span > .< span class = "ident" > headers< / span > ().< span class = "ident" > get< / span > (< span class = "ident" > header::ORIGIN< / span > );
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< span class = "kw" > match< / span > < span class = "self" > self< / span > .< span class = "ident" > allowed_origins< / span > {
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< span class = "ident" > AllOrSome::All< / span > < span class = "op" > =< / span > < span class = "op" > > < / span > {
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< span class = "kw" > if< / span > < span class = "self" > self< / span > .< span class = "ident" > send_wildcard< / span > {
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< span class = "prelude-val" > Some< / span > (< span class = "ident" > HeaderValue::from_static< / span > (< span class = "string" > " *" < / span > ))
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} < span class = "kw" > else< / span > {
< span class = "comment" > // see note below about why `.cloned()` is correct< / span >
< span class = "ident" > origin< / span > .< span class = "ident" > cloned< / span > ()
}
}
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< span class = "ident" > AllOrSome::Some< / span > (< span class = "kw" > _< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > {
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< span class = "comment" > // since origin (if it exists) is known to be allowed if this method is called< / span >
< span class = "comment" > // then cloning the option is all that is required to be used as an echoed back< / span >
< span class = "comment" > // header value (or omitted if None)< / span >
< span class = "ident" > origin< / span > .< span class = "ident" > cloned< / span > ()
}
}
}
< span class = "doccomment" > /// Use in preflight checks and therefore operates on header list in< / span >
< span class = "doccomment" > /// `Access-Control-Request-Headers` not the actual header set.< / span >
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< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "kw" > fn< / span > < span class = "ident" > validate_allowed_method< / span > (< span class = "kw-2" > & < / span > < span class = "self" > self< / span > , < span class = "ident" > req< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > RequestHead< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "prelude-ty" > Result< / span > < span class = "op" > < < / span > (), < span class = "ident" > CorsError< / span > < span class = "op" > > < / span > {
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< span class = "comment" > // extract access control header and try to parse as method< / span >
< span class = "kw" > let< / span > < span class = "ident" > request_method< / span > < span class = "op" > =< / span > < span class = "ident" > req< / span >
.< span class = "ident" > headers< / span > ()
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.< span class = "ident" > get< / span > (< span class = "ident" > header::ACCESS_CONTROL_REQUEST_METHOD< / span > )
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.< span class = "ident" > map< / span > (< span class = "ident" > header_value_try_into_method< / span > );
< span class = "kw" > match< / span > < span class = "ident" > request_method< / span > {
< span class = "comment" > // method valid and allowed< / span >
< span class = "prelude-val" > Some< / span > (< span class = "prelude-val" > Some< / span > (< span class = "ident" > method< / span > )) < span class = "kw" > if< / span > < span class = "self" > self< / span > .< span class = "ident" > allowed_methods< / span > .< span class = "ident" > contains< / span > (< span class = "kw-2" > & < / span > < span class = "ident" > method< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "prelude-val" > Ok< / span > (()),
< span class = "comment" > // method valid but not allowed< / span >
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< span class = "prelude-val" > Some< / span > (< span class = "prelude-val" > Some< / span > (< span class = "kw" > _< / span > )) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::MethodNotAllowed< / span > ),
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< span class = "comment" > // method invalid< / span >
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< span class = "prelude-val" > Some< / span > (< span class = "kw" > _< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::BadRequestMethod< / span > ),
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< span class = "comment" > // method missing< / span >
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< span class = "prelude-val" > None< / span > < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::MissingRequestMethod< / span > ),
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}
}
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< span class = "kw" > pub< / span > (< span class = "kw" > crate< / span > ) < span class = "kw" > fn< / span > < span class = "ident" > validate_allowed_headers< / span > (< span class = "kw-2" > & < / span > < span class = "self" > self< / span > , < span class = "ident" > req< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > RequestHead< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "prelude-ty" > Result< / span > < span class = "op" > < < / span > (), < span class = "ident" > CorsError< / span > < span class = "op" > > < / span > {
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< span class = "comment" > // return early if all headers are allowed or get ref to allowed origins set< / span >
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< span class = "attribute" > #[< span class = "ident" > allow< / span > (< span class = "ident" > clippy::mutable_key_type< / span > )]< / span >
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< span class = "kw" > let< / span > < span class = "ident" > allowed_headers< / span > < span class = "op" > =< / span > < span class = "kw" > match< / span > < span class = "kw-2" > & < / span > < span class = "self" > self< / span > .< span class = "ident" > allowed_headers< / span > {
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< span class = "ident" > AllOrSome::All< / span > < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "kw" > return< / span > < span class = "prelude-val" > Ok< / span > (()),
< span class = "ident" > AllOrSome::Some< / span > (< span class = "ident" > allowed_headers< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "ident" > allowed_headers< / span > ,
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};
< span class = "comment" > // extract access control header as string< / span >
< span class = "comment" > // header format should be comma separated header names< / span >
< span class = "kw" > let< / span > < span class = "ident" > request_headers< / span > < span class = "op" > =< / span > < span class = "ident" > req< / span >
.< span class = "ident" > headers< / span > ()
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.< span class = "ident" > get< / span > (< span class = "ident" > header::ACCESS_CONTROL_REQUEST_HEADERS< / span > )
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.< span class = "ident" > map< / span > (< span class = "op" > |< / span > < span class = "ident" > hdr< / span > < span class = "op" > |< / span > < span class = "ident" > hdr< / span > .< span class = "ident" > to_str< / span > ());
< span class = "kw" > match< / span > < span class = "ident" > request_headers< / span > {
< span class = "comment" > // header list is valid string< / span >
< span class = "prelude-val" > Some< / span > (< span class = "prelude-val" > Ok< / span > (< span class = "ident" > headers< / span > )) < span class = "op" > =< / span > < span class = "op" > > < / span > {
< span class = "comment" > // the set is ephemeral we take care not to mutate the< / span >
< span class = "comment" > // inserted keys so this lint exception is acceptable< / span >
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< span class = "attribute" > #[< span class = "ident" > allow< / span > (< span class = "ident" > clippy::mutable_key_type< / span > )]< / span >
< span class = "kw" > let< / span > < span class = "kw-2" > mut< / span > < span class = "ident" > request_headers< / span > < span class = "op" > =< / span > < span class = "ident" > HashSet::with_capacity< / span > (< span class = "number" > 8< / span > );
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< span class = "comment" > // try to convert each header name in the comma-separated list< / span >
< span class = "kw" > for< / span > < span class = "ident" > hdr< / span > < span class = "kw" > in< / span > < span class = "ident" > headers< / span > .< span class = "ident" > split< / span > (< span class = "string" > ' ,' < / span > ) {
< span class = "kw" > match< / span > < span class = "ident" > hdr< / span > .< span class = "ident" > trim< / span > ().< span class = "ident" > try_into< / span > () {
< span class = "prelude-val" > Ok< / span > (< span class = "ident" > hdr< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "ident" > request_headers< / span > .< span class = "ident" > insert< / span > (< span class = "ident" > hdr< / span > ),
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< span class = "prelude-val" > Err< / span > (< span class = "kw" > _< / span > ) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "kw" > return< / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::BadRequestHeaders< / span > ),
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};
}
< span class = "comment" > // header list must contain 1 or more header name< / span >
< span class = "kw" > if< / span > < span class = "ident" > request_headers< / span > .< span class = "ident" > is_empty< / span > () {
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< span class = "kw" > return< / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::BadRequestHeaders< / span > );
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}
< span class = "comment" > // request header list must be a subset of allowed headers< / span >
< span class = "kw" > if< / span > < span class = "op" > !< / span > < span class = "ident" > request_headers< / span > .< span class = "ident" > is_subset< / span > (< span class = "ident" > allowed_headers< / span > ) {
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< span class = "kw" > return< / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::HeadersNotAllowed< / span > );
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}
< span class = "prelude-val" > Ok< / span > (())
}
< span class = "comment" > // header list is not a string< / span >
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< span class = "prelude-val" > Some< / span > (< span class = "prelude-val" > Err< / span > (< span class = "kw" > _< / span > )) < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "prelude-val" > Err< / span > (< span class = "ident" > CorsError::BadRequestHeaders< / span > ),
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< span class = "comment" > // header list missing< / span >
< span class = "prelude-val" > None< / span > < span class = "op" > =< / span > < span class = "op" > > < / span > < span class = "prelude-val" > Ok< / 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 > {
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< span class = "kw" > use< / span > < span class = "ident" > std::rc::Rc< / span > ;
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< span class = "kw" > use< / span > < span class = "ident" > actix_web< / span > ::{
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< span class = "ident" > dev::Transform< / span > ,
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< span class = "ident" > http< / span > ::{< span class = "ident" > header< / span > , < span class = "ident" > HeaderValue< / span > , < span class = "ident" > Method< / span > , < span class = "ident" > StatusCode< / span > },
< span class = "ident" > test< / span > ::{< span class = "self" > self< / span > , < span class = "ident" > TestRequest< / span > },
};
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< span class = "kw" > use< / span > < span class = "ident" > < span class = "kw" > crate< / span > ::Cors< / span > ;
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< span class = "kw" > fn< / span > < span class = "ident" > val_as_str< / span > (< span class = "ident" > val< / span > : < span class = "kw-2" > & < / span > < span class = "ident" > HeaderValue< / span > ) < span class = "op" > -< / span > < span class = "op" > > < / span > < span class = "kw-2" > & < / span > < span class = "ident" > str< / span > {
< span class = "ident" > val< / span > .< span class = "ident" > to_str< / span > ().< span class = "ident" > unwrap< / span > ()
}
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< span class = "attribute" > #[< span class = "ident" > actix_rt::test< / span > ]< / span >
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< span class = "kw" > async< / span > < span class = "kw" > fn< / span > < span class = "ident" > test_validate_not_allowed_origin< / span > () {
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< span class = "kw" > let< / span > < span class = "ident" > cors< / span > < span class = "op" > =< / span > < span class = "ident" > Cors::default< / span > ()
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.< span class = "ident" > allowed_origin< / span > (< span class = "string" > " https://www.example.com" < / span > )
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.< span class = "ident" > new_transform< / span > (< span class = "ident" > test::ok_service< / span > ())
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.< span class = "kw" > await< / span >
.< span class = "ident" > unwrap< / span > ();
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< span class = "kw" > let< / span > < span class = "ident" > req< / span > < span class = "op" > =< / span > < span class = "ident" > TestRequest::get< / span > ()
.< span class = "ident" > insert_header< / span > ((< span class = "ident" > header::ORIGIN< / span > , < span class = "string" > " https://www.unknown.com" < / span > ))
.< span class = "ident" > insert_header< / span > ((< span class = "ident" > header::ACCESS_CONTROL_REQUEST_HEADERS< / span > , < span class = "string" > " DNT" < / span > ))
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.< span class = "ident" > to_srv_request< / span > ();
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< span class = "macro" > assert!< / span > (< span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > .< span class = "ident" > validate_origin< / span > (< span class = "ident" > req< / span > .< span class = "ident" > head< / span > ()).< span class = "ident" > is_err< / span > ());
< span class = "macro" > assert!< / span > (< span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > .< span class = "ident" > validate_allowed_method< / span > (< span class = "ident" > req< / span > .< span class = "ident" > head< / span > ()).< span class = "ident" > is_err< / span > ());
< span class = "macro" > assert!< / span > (< span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > .< span class = "ident" > validate_allowed_headers< / span > (< span class = "ident" > req< / span > .< span class = "ident" > head< / span > ()).< span class = "ident" > is_err< / span > ());
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}
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< span class = "attribute" > #[< span class = "ident" > actix_rt::test< / span > ]< / span >
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< span class = "kw" > async< / span > < span class = "kw" > fn< / span > < span class = "ident" > test_preflight< / span > () {
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< span class = "kw" > let< / span > < span class = "kw-2" > mut< / span > < span class = "ident" > cors< / span > < span class = "op" > =< / span > < span class = "ident" > Cors::default< / span > ()
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.< span class = "ident" > allow_any_origin< / span > ()
.< span class = "ident" > send_wildcard< / span > ()
.< span class = "ident" > max_age< / span > (< span class = "number" > 3600< / span > )
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.< span class = "ident" > allowed_methods< / span > (< span class = "macro" > vec!< / span > [< span class = "ident" > Method::GET< / span > , < span class = "ident" > Method::OPTIONS< / span > , < span class = "ident" > Method::POST< / span > ])
.< span class = "ident" > allowed_headers< / span > (< span class = "macro" > vec!< / span > [< span class = "ident" > header::AUTHORIZATION< / span > , < span class = "ident" > header::ACCEPT< / span > ])
.< span class = "ident" > allowed_header< / span > (< span class = "ident" > header::CONTENT_TYPE< / span > )
.< span class = "ident" > new_transform< / span > (< span class = "ident" > test::ok_service< / span > ())
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.< span class = "kw" > await< / span >
.< span class = "ident" > unwrap< / span > ();
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< span class = "kw" > let< / span > < span class = "ident" > req< / span > < span class = "op" > =< / span > < span class = "ident" > TestRequest::default< / span > ()
.< span class = "ident" > method< / span > (< span class = "ident" > Method::OPTIONS< / span > )
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.< span class = "ident" > insert_header< / span > ((< span class = "string" > " Origin" < / span > , < span class = "string" > " https://www.example.com" < / span > ))
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.< span class = "ident" > insert_header< / span > ((< span class = "ident" > header::ACCESS_CONTROL_REQUEST_HEADERS< / span > , < span class = "string" > " X-Not-Allowed" < / span > ))
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.< span class = "ident" > to_srv_request< / span > ();
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< span class = "macro" > assert!< / span > (< span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > .< span class = "ident" > validate_allowed_method< / span > (< span class = "ident" > req< / span > .< span class = "ident" > head< / span > ()).< span class = "ident" > is_err< / span > ());
< span class = "macro" > assert!< / span > (< span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > .< span class = "ident" > validate_allowed_headers< / span > (< span class = "ident" > req< / span > .< span class = "ident" > head< / span > ()).< span class = "ident" > is_err< / 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 > );
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< span class = "kw" > let< / span > < span class = "ident" > req< / span > < span class = "op" > =< / span > < span class = "ident" > TestRequest::default< / span > ()
.< span class = "ident" > method< / span > (< span class = "ident" > Method::OPTIONS< / span > )
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.< span class = "ident" > insert_header< / span > ((< span class = "string" > " Origin" < / span > , < span class = "string" > " https://www.example.com" < / span > ))
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.< span class = "ident" > insert_header< / span > ((< span class = "ident" > header::ACCESS_CONTROL_REQUEST_METHOD< / span > , < span class = "string" > " put" < / span > ))
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.< span class = "ident" > to_srv_request< / span > ();
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< span class = "macro" > assert!< / span > (< span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > .< span class = "ident" > validate_allowed_method< / span > (< span class = "ident" > req< / span > .< span class = "ident" > head< / span > ()).< span class = "ident" > is_err< / span > ());
< span class = "macro" > assert!< / span > (< span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > .< span class = "ident" > validate_allowed_headers< / span > (< span class = "ident" > req< / span > .< span class = "ident" > head< / span > ()).< span class = "ident" > is_ok< / span > ());
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< span class = "kw" > let< / span > < span class = "ident" > req< / span > < span class = "op" > =< / span > < span class = "ident" > TestRequest::default< / span > ()
.< span class = "ident" > method< / span > (< span class = "ident" > Method::OPTIONS< / span > )
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.< span class = "ident" > insert_header< / span > ((< span class = "string" > " Origin" < / span > , < span class = "string" > " https://www.example.com" < / span > ))
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.< span class = "ident" > insert_header< / span > ((< span class = "ident" > header::ACCESS_CONTROL_REQUEST_METHOD< / span > , < span class = "string" > " POST" < / span > ))
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.< span class = "ident" > insert_header< / span > ((
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< span class = "ident" > header::ACCESS_CONTROL_REQUEST_HEADERS< / span > ,
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< span class = "string" > " AUTHORIZATION,ACCEPT" < / span > ,
))
.< span class = "ident" > to_srv_request< / span > ();
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< 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 > (
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< span class = "prelude-val" > Some< / span > (< span class = "kw-2" > & < / span > < span class = "string" > b" *" < / span > [..]),
< span class = "ident" > resp< / span > .< span class = "ident" > headers< / span > ()
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.< span class = "ident" > get< / span > (< span class = "ident" > header::ACCESS_CONTROL_ALLOW_ORIGIN< / span > )
.< span class = "ident" > map< / span > (< span class = "ident" > HeaderValue::as_bytes< / span > )
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);
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< span class = "macro" > assert_eq!< / span > (
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< span class = "prelude-val" > Some< / span > (< span class = "kw-2" > & < / span > < span class = "string" > b" 3600" < / span > [..]),
< span class = "ident" > resp< / span > .< span class = "ident" > headers< / span > ()
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.< span class = "ident" > get< / span > (< span class = "ident" > header::ACCESS_CONTROL_MAX_AGE< / span > )
.< span class = "ident" > map< / span > (< span class = "ident" > HeaderValue::as_bytes< / span > )
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);
< span class = "kw" > let< / span > < span class = "ident" > hdr< / span > < span class = "op" > =< / span > < span class = "ident" > resp< / span >
.< span class = "ident" > headers< / span > ()
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.< span class = "ident" > get< / span > (< span class = "ident" > header::ACCESS_CONTROL_ALLOW_HEADERS< / span > )
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.< span class = "ident" > map< / span > (< span class = "ident" > val_as_str< / span > )
.< span class = "ident" > unwrap< / span > ();
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< span class = "macro" > assert!< / span > (< span class = "ident" > hdr< / span > .< span class = "ident" > contains< / span > (< span class = "string" > " authorization" < / span > ));
< span class = "macro" > assert!< / span > (< span class = "ident" > hdr< / span > .< span class = "ident" > contains< / span > (< span class = "string" > " accept" < / span > ));
< span class = "macro" > assert!< / span > (< span class = "ident" > hdr< / span > .< span class = "ident" > contains< / span > (< span class = "string" > " content-type" < / span > ));
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< span class = "kw" > let< / span > < span class = "ident" > methods< / span > < span class = "op" > =< / span > < span class = "ident" > resp< / span >
.< span class = "ident" > headers< / span > ()
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.< span class = "ident" > get< / span > (< span class = "ident" > header::ACCESS_CONTROL_ALLOW_METHODS< / span > )
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.< span class = "ident" > unwrap< / span > ()
.< span class = "ident" > to_str< / span > ()
.< span class = "ident" > unwrap< / span > ();
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< span class = "macro" > assert!< / span > (< span class = "ident" > methods< / span > .< span class = "ident" > contains< / span > (< span class = "string" > " POST" < / span > ));
< span class = "macro" > assert!< / span > (< span class = "ident" > methods< / span > .< span class = "ident" > contains< / span > (< span class = "string" > " GET" < / span > ));
< span class = "macro" > assert!< / span > (< span class = "ident" > methods< / span > .< span class = "ident" > contains< / span > (< span class = "string" > " OPTIONS" < / span > ));
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< span class = "ident" > Rc::get_mut< / span > (< span class = "kw-2" > & < / span > < span class = "kw-2" > mut< / span > < span class = "ident" > cors< / span > .< span class = "ident" > inner< / span > ).< span class = "ident" > unwrap< / span > ().< span class = "ident" > preflight< / span > < span class = "op" > =< / span > < span class = "bool-val" > false< / span > ;
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< span class = "kw" > let< / span > < span class = "ident" > req< / span > < span class = "op" > =< / span > < span class = "ident" > TestRequest::default< / span > ()
.< span class = "ident" > method< / span > (< span class = "ident" > Method::OPTIONS< / span > )
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.< span class = "ident" > insert_header< / span > ((< span class = "string" > " Origin" < / span > , < span class = "string" > " https://www.example.com" < / span > ))
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.< span class = "ident" > insert_header< / span > ((< span class = "ident" > header::ACCESS_CONTROL_REQUEST_METHOD< / span > , < span class = "string" > " POST" < / span > ))
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.< span class = "ident" > insert_header< / span > ((
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< span class = "ident" > header::ACCESS_CONTROL_REQUEST_HEADERS< / span > ,
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< span class = "string" > " AUTHORIZATION,ACCEPT" < / span > ,
))
.< span class = "ident" > to_srv_request< / span > ();
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< 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::OK< / span > );
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}
}
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< / code > < / pre > < / div >
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< / section > < section id = "search" class = "content hidden" > < / section > < div id = "rustdoc-vars" data-root-path = "../../" data-current-crate = "actix_cors" data-search-index-js = "../../search-index.js" data-search-js = "../../search.js" > < / div >
< script src = "../../main.js" > < / script > < script src = "../../source-script.js" > < / script > < script src = "../../source-files.js" > < / script >
< / body > < / html >
