typed_headers/impls/
http_date.rs

1use chrono::{DateTime, NaiveDateTime, Utc};
2use std::fmt;
3use std::str::FromStr;
4use std::time::SystemTime;
5
6use crate::Error;
7
8const IMF_FIXDATE_PATTERN: &'static str = "%a, %d %b %Y %T GMT";
9const RFC850_DATE_PATTERN: &'static str = "%A, %d-%b-%y %T GMT";
10const ASCTIME_DATE_PATTERN: &'static str = "%a %b %e %T %Y";
11
12#[derive(Debug, Clone, PartialEq, Eq)]
13pub struct HttpDate(DateTime<Utc>);
14
15impl From<SystemTime> for HttpDate {
16    #[inline]
17    fn from(t: SystemTime) -> HttpDate {
18        HttpDate(DateTime::from(t))
19    }
20}
21
22impl From<HttpDate> for SystemTime {
23    #[inline]
24    fn from(t: HttpDate) -> SystemTime {
25        SystemTime::from(t.0)
26    }
27}
28
29impl FromStr for HttpDate {
30    type Err = Error;
31
32    fn from_str(s: &str) -> Result<HttpDate, Error> {
33        let naive = NaiveDateTime::parse_from_str(s, IMF_FIXDATE_PATTERN)
34            .or_else(|_| NaiveDateTime::parse_from_str(s, RFC850_DATE_PATTERN))
35            .or_else(|_| NaiveDateTime::parse_from_str(s, ASCTIME_DATE_PATTERN))
36            .map_err(|_| Error::invalid_value())?;
37
38        Ok(HttpDate(DateTime::from_utc(naive, Utc)))
39    }
40}
41
42impl fmt::Display for HttpDate {
43    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
44        fmt::Display::fmt(&self.0.format(IMF_FIXDATE_PATTERN), fmt)
45    }
46}
typed_headers/impls/http_date.rs

typed_headers/impls/
http_date.rs
