pub struct AccessControlAllowOrigin(/* private fields */);
Expand description

The Access-Control-Allow-Origin response header, part of CORS

The Access-Control-Allow-Origin header indicates whether a resource can be shared based by returning the value of the Origin request header, *, or null in the response.

ABNF

Access-Control-Allow-Origin = "Access-Control-Allow-Origin" ":" origin-list-or-null | "*"

Example values

  • null
  • *
  • http://google.com/

Examples

use headers::AccessControlAllowOrigin;
use std::convert::TryFrom;

let any_origin = AccessControlAllowOrigin::ANY;
let null_origin = AccessControlAllowOrigin::NULL;
let origin = AccessControlAllowOrigin::try_from("http://web-platform.test:8000");

Implementations§

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impl AccessControlAllowOrigin

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pub const ANY: AccessControlAllowOrigin = _

Access-Control-Allow-Origin: *

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pub const NULL: AccessControlAllowOrigin = _

Access-Control-Allow-Origin: null

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pub fn origin(&self) -> Option<&Origin>

Returns the origin if there’s one specified.

Trait Implementations§

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impl Clone for AccessControlAllowOrigin

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fn clone(&self) -> AccessControlAllowOrigin

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for AccessControlAllowOrigin

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Hash for AccessControlAllowOrigin

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Header for AccessControlAllowOrigin

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fn name() -> &'static HeaderName

The name of this header.
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fn decode<'i, I>(values: &mut I) -> Result<Self, Error>
where I: Iterator<Item = &'i HeaderValue>,

Decode this type from an iterator of HeaderValues.
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fn encode<E: Extend<HeaderValue>>(&self, values: &mut E)

Encode this type to a HeaderMap. Read more
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impl PartialEq for AccessControlAllowOrigin

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fn eq(&self, other: &AccessControlAllowOrigin) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryFrom<&str> for AccessControlAllowOrigin

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(s: &str) -> Result<Self, Error>

Performs the conversion.
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impl Eq for AccessControlAllowOrigin

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impl StructuralEq for AccessControlAllowOrigin

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impl StructuralPartialEq for AccessControlAllowOrigin

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.