Replace time with httpdate

Cargo.toml

@@ -24,7 +24,7 @@ bitflags = "1.0"
 bytes = "1"
 mime = "0.3.14"
 sha-1 = "0.9"
-time = "0.1.34"
+httpdate = "1"
 
 [features]
 nightly = []

src/lib.rs

@@ -78,11 +78,11 @@ extern crate bitflags;
 extern crate bytes;
 extern crate headers_core;
 extern crate http;
+extern crate httpdate;
 extern crate mime;
 extern crate sha1;
 #[cfg(all(test, feature = "nightly"))]
 extern crate test;
-extern crate time;
 
 pub use headers_core::{Error, Header};
 

src/util/http_date.rs

@@ -1,10 +1,10 @@
 use std::fmt;
 use std::str::FromStr;
-use std::time::{Duration, SystemTime, UNIX_EPOCH};
+use std::time::SystemTime;
 
 use bytes::Bytes;
 use http::header::HeaderValue;
-use time;
+use httpdate;
 
 use super::IterExt;
 
@@ -32,7 +32,7 @@ use super::IterExt;
 //   HTTP-date, the sender MUST generate those timestamps in the
 //   IMF-fixdate format.
 #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub(crate) struct HttpDate(time::Tm);
+pub(crate) struct HttpDate(httpdate::HttpDate);
 
 impl HttpDate {
     pub(crate) fn from_val(val: &HeaderValue) -> Option<Self> {
@@ -74,96 +74,74 @@ impl<'a> From<&'a HttpDate> for HeaderValue {
 impl FromStr for HttpDate {
     type Err = Error;
     fn from_str(s: &str) -> Result<HttpDate, Error> {
-        time::strptime(s, "%a, %d %b %Y %T %Z")
-            .or_else(|_| time::strptime(s, "%A, %d-%b-%y %T %Z"))
-            .or_else(|_| time::strptime(s, "%c"))
-            .map(HttpDate)
-            .map_err(|_| Error(()))
+        Ok(HttpDate(s.parse().map_err(|_| Error(()))?))
     }
 }
 
 impl fmt::Debug for HttpDate {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Display::fmt(&self.0.to_utc().rfc822(), f)
+        fmt::Display::fmt(&self.0, f)
     }
 }
 
 impl fmt::Display for HttpDate {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        fmt::Display::fmt(&self.0.to_utc().rfc822(), f)
+        fmt::Display::fmt(&self.0, f)
     }
 }
 
 impl From<SystemTime> for HttpDate {
     fn from(sys: SystemTime) -> HttpDate {
-        let tmspec = match sys.duration_since(UNIX_EPOCH) {
-            Ok(dur) => {
-                // subsec nanos always dropped
-                time::Timespec::new(dur.as_secs() as i64, 0)
-            }
-            Err(err) => {
-                let neg = err.duration();
-                // subsec nanos always dropped
-                time::Timespec::new(-(neg.as_secs() as i64), 0)
-            }
-        };
-        HttpDate(time::at_utc(tmspec))
+        HttpDate(sys.into())
     }
 }
 
 impl From<HttpDate> for SystemTime {
     fn from(date: HttpDate) -> SystemTime {
-        let spec = date.0.to_timespec();
-        if spec.sec >= 0 {
-            UNIX_EPOCH + Duration::new(spec.sec as u64, spec.nsec as u32)
-        } else {
-            UNIX_EPOCH - Duration::new(spec.sec as u64, spec.nsec as u32)
-        }
+        SystemTime::from(date.0)
     }
 }
 
 #[cfg(test)]
 mod tests {
     use super::HttpDate;
-    use time::Tm;
-
-    const NOV_07: HttpDate = HttpDate(Tm {
-        tm_nsec: 0,
-        tm_sec: 37,
-        tm_min: 48,
-        tm_hour: 8,
-        tm_mday: 7,
-        tm_mon: 10,
-        tm_year: 94,
-        tm_wday: 0,
-        tm_isdst: 0,
-        tm_yday: 0,
-        tm_utcoff: 0,
-    });
+
+    use std::time::{Duration, UNIX_EPOCH};
+
+    // The old tests had Sunday, but 1994-11-07 is a Monday.
+    // See https://github.com/pyfisch/httpdate/pull/6#issuecomment-846881001
+    fn nov_07() -> HttpDate {
+        HttpDate((UNIX_EPOCH + Duration::new(784198117, 0)).into())
+    }
+
+    #[test]
+    fn test_display_is_imf_fixdate() {
+        assert_eq!("Mon, 07 Nov 1994 08:48:37 GMT", &nov_07().to_string());
+    }
 
     #[test]
     fn test_imf_fixdate() {
         assert_eq!(
-            "Sun, 07 Nov 1994 08:48:37 GMT".parse::<HttpDate>().unwrap(),
-            NOV_07
+            "Mon, 07 Nov 1994 08:48:37 GMT".parse::<HttpDate>().unwrap(),
+            nov_07()
         );
     }
 
     #[test]
     fn test_rfc_850() {
         assert_eq!(
-            "Sunday, 07-Nov-94 08:48:37 GMT"
+            "Monday, 07-Nov-94 08:48:37 GMT"
                 .parse::<HttpDate>()
                 .unwrap(),
-            NOV_07
+            nov_07()
         );
     }
 
     #[test]
     fn test_asctime() {
         assert_eq!(
-            "Sun Nov  7 08:48:37 1994".parse::<HttpDate>().unwrap(),
-            NOV_07
+            "Mon Nov  7 08:48:37 1994".parse::<HttpDate>().unwrap(),
+            nov_07()
         );
     }