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41 lines
1.3 KiB
Rust
41 lines
1.3 KiB
Rust
use super::{HttpDate, IF_MODIFIED_SINCE};
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crate::http::header::common_header! {
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/// `If-Modified-Since` header, defined
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/// in [RFC 7232 §3.3](https://datatracker.ietf.org/doc/html/rfc7232#section-3.3)
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///
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/// The `If-Modified-Since` header field makes a GET or HEAD request
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/// method conditional on the selected representation's modification date
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/// being more recent than the date provided in the field-value.
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/// Transfer of the selected representation's data is avoided if that
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/// data has not changed.
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///
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/// # ABNF
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/// ```plain
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/// If-Unmodified-Since = HTTP-date
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/// ```
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///
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/// # Example Values
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/// * `Sat, 29 Oct 1994 19:43:31 GMT`
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///
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/// # Examples
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///
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/// ```
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/// use std::time::{SystemTime, Duration};
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/// use actix_web::HttpResponse;
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/// use actix_web::http::header::IfModifiedSince;
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///
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/// let mut builder = HttpResponse::Ok();
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/// let modified = SystemTime::now() - Duration::from_secs(60 * 60 * 24);
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/// builder.insert_header(
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/// IfModifiedSince(modified.into())
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/// );
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/// ```
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(IfModifiedSince, IF_MODIFIED_SINCE) => [HttpDate]
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test_parse_and_format {
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// Test case from RFC
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crate::http::header::common_header_test!(test1, vec![b"Sat, 29 Oct 1994 19:43:31 GMT"]);
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}
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}
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