51 lines
1.1 KiB
Rust
51 lines
1.1 KiB
Rust
use std::time::SystemTime;
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use crate::util::HttpDate;
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/// `Expires` header, defined in [RFC7234](https://datatracker.ietf.org/doc/html/rfc7234#section-5.3)
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///
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/// The `Expires` header field gives the date/time after which the
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/// response is considered stale.
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///
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/// The presence of an Expires field does not imply that the original
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/// resource will change or cease to exist at, before, or after that
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/// time.
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///
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/// # ABNF
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///
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/// ```text
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/// Expires = HTTP-date
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/// ```
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///
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/// # Example values
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/// * `Thu, 01 Dec 1994 16:00:00 GMT`
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///
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/// # Example
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///
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/// ```
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/// use headers::Expires;
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/// use std::time::{SystemTime, Duration};
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///
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/// let time = SystemTime::now() + Duration::from_secs(60 * 60 * 24);
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/// let expires = Expires::from(time);
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/// ```
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub struct Expires(HttpDate);
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derive_header! {
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Expires(_),
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name: EXPIRES
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}
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impl From<SystemTime> for Expires {
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fn from(time: SystemTime) -> Expires {
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Expires(time.into())
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}
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}
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impl From<Expires> for SystemTime {
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fn from(date: Expires) -> SystemTime {
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date.0.into()
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}
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}
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