diff options
Diffstat (limited to 'third_party/rust/httpdate')
| -rw-r--r-- | third_party/rust/httpdate/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | third_party/rust/httpdate/Cargo.toml | 27 | ||||
| -rw-r--r-- | third_party/rust/httpdate/LICENSE-APACHE | 201 | ||||
| -rw-r--r-- | third_party/rust/httpdate/LICENSE-MIT | 19 | ||||
| -rw-r--r-- | third_party/rust/httpdate/README.md | 27 | ||||
| -rw-r--r-- | third_party/rust/httpdate/benches/benchmarks.rs | 57 | ||||
| -rw-r--r-- | third_party/rust/httpdate/src/date.rs | 420 | ||||
| -rw-r--r-- | third_party/rust/httpdate/src/lib.rs | 160 |
8 files changed, 912 insertions, 0 deletions
diff --git a/third_party/rust/httpdate/.cargo-checksum.json b/third_party/rust/httpdate/.cargo-checksum.json new file mode 100644 index 0000000000..adaf3eceb8 --- /dev/null +++ b/third_party/rust/httpdate/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"214f35d88fe24ad0bce0c89aa14912a083e7a3bd496cd6c39c915931ee32674f","LICENSE-APACHE":"4d10fe5f3aa176b05b229a248866bad70b834c173f1252a814ff4748d8a13837","LICENSE-MIT":"934887691e05d69d7c86ad3f2c360980fa30c15b035e351f3c9865e99da4debc","README.md":"26318a99a935b392b4fc7527e2376ee67e6b7bb75558882173d25c4408ce9273","benches/benchmarks.rs":"13f1208dfb86e3c02dcd67a4c08c2bae300c0a153de5df437eac4a136579ec23","src/date.rs":"bb1afb1189a9da7f8246f5fd4594d4b29c27bf8da3642fddd9bf54b7ce0b1bd8","src/lib.rs":"83e73452762adf92f4ab476276d6ad72bce9142ffbf730bd0c47549a8dff2699"},"package":"c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"}
\ No newline at end of file diff --git a/third_party/rust/httpdate/Cargo.toml b/third_party/rust/httpdate/Cargo.toml new file mode 100644 index 0000000000..572ff232e5 --- /dev/null +++ b/third_party/rust/httpdate/Cargo.toml @@ -0,0 +1,27 @@ +# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO +# +# When uploading crates to the registry Cargo will automatically +# "normalize" Cargo.toml files for maximal compatibility +# with all versions of Cargo and also rewrite `path` dependencies +# to registry (e.g., crates.io) dependencies. +# +# If you are reading this file be aware that the original Cargo.toml +# will likely look very different (and much more reasonable). +# See Cargo.toml.orig for the original contents. + +[package] +edition = "2018" +name = "httpdate" +version = "1.0.2" +authors = ["Pyfisch <pyfisch@posteo.org>"] +description = "HTTP date parsing and formatting" +readme = "README.md" +keywords = ["http", "date", "time", "simple", "timestamp"] +license = "MIT/Apache-2.0" +repository = "https://github.com/pyfisch/httpdate" + +[[bench]] +name = "benchmarks" +harness = false +[dev-dependencies.criterion] +version = "0.3.5" diff --git a/third_party/rust/httpdate/LICENSE-APACHE b/third_party/rust/httpdate/LICENSE-APACHE new file mode 100644 index 0000000000..cd482d8976 --- /dev/null +++ b/third_party/rust/httpdate/LICENSE-APACHE @@ -0,0 +1,201 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/third_party/rust/httpdate/README.md b/third_party/rust/httpdate/README.md new file mode 100644 index 0000000000..c90c6f4252 --- /dev/null +++ b/third_party/rust/httpdate/README.md @@ -0,0 +1,27 @@ +# Date and time utils for HTTP. + +[](https://travis-ci.org/pyfisch/httpdate) +[](https://crates.io/crates/httpdate) +[](https://docs.rs/httpdate) + +Multiple HTTP header fields store timestamps. +For example a response created on May 15, 2015 may contain the header +`Date: Fri, 15 May 2015 15:34:21 GMT`. Since the timestamp does not +contain any timezone or leap second information it is equvivalent to +writing 1431696861 Unix time. Rust’s `SystemTime` is used to store +these timestamps. + +This crate provides two public functions: + +* `parse_http_date` to parse a HTTP datetime string to a system time +* `fmt_http_date` to format a system time to a IMF-fixdate + +In addition it exposes the `HttpDate` type that can be used to parse +and format timestamps. Convert a sytem time to `HttpDate` and vice versa. +The `HttpType` (8 bytes) is smaller than `SystemTime` (16 bytes) and +using the display impl avoids a temporary allocation. + +Read the [blog post](https://pyfisch.org/blog/http-datetime-handling/) to learn +more. + +Fuzz it by installing *cargo-fuzz* and running `cargo fuzz run fuzz_target_1`. diff --git a/third_party/rust/httpdate/benches/benchmarks.rs b/third_party/rust/httpdate/benches/benchmarks.rs new file mode 100644 index 0000000000..4f82467bdb --- /dev/null +++ b/third_party/rust/httpdate/benches/benchmarks.rs @@ -0,0 +1,57 @@ +use criterion::{black_box, criterion_group, criterion_main, Criterion}; + +pub fn parse_imf_fixdate(c: &mut Criterion) { + c.bench_function("parse_imf_fixdate", |b| { + b.iter(|| { + let d = black_box("Sun, 06 Nov 1994 08:49:37 GMT"); + black_box(httpdate::parse_http_date(d)).unwrap(); + }) + }); +} + +pub fn parse_rfc850_date(c: &mut Criterion) { + c.bench_function("parse_rfc850_date", |b| { + b.iter(|| { + let d = black_box("Sunday, 06-Nov-94 08:49:37 GMT"); + black_box(httpdate::parse_http_date(d)).unwrap(); + }) + }); +} + +pub fn parse_asctime(c: &mut Criterion) { + c.bench_function("parse_asctime", |b| { + b.iter(|| { + let d = black_box("Sun Nov 6 08:49:37 1994"); + black_box(httpdate::parse_http_date(d)).unwrap(); + }) + }); +} + +struct BlackBoxWrite; + +impl std::fmt::Write for BlackBoxWrite { + fn write_str(&mut self, s: &str) -> Result<(), std::fmt::Error> { + black_box(s); + Ok(()) + } +} + +pub fn encode_date(c: &mut Criterion) { + c.bench_function("encode_date", |b| { + let d = "Wed, 21 Oct 2015 07:28:00 GMT"; + black_box(httpdate::parse_http_date(d)).unwrap(); + b.iter(|| { + use std::fmt::Write; + let _ = write!(BlackBoxWrite, "{}", d); + }) + }); +} + +criterion_group!( + benches, + parse_imf_fixdate, + parse_rfc850_date, + parse_asctime, + encode_date +); +criterion_main!(benches); diff --git a/third_party/rust/httpdate/src/date.rs b/third_party/rust/httpdate/src/date.rs new file mode 100644 index 0000000000..9f780b65ce --- /dev/null +++ b/third_party/rust/httpdate/src/date.rs @@ -0,0 +1,420 @@ +use std::cmp; +use std::fmt::{self, Display, Formatter}; +use std::str::FromStr; +use std::time::{Duration, SystemTime, UNIX_EPOCH}; + +use crate::Error; + +/// HTTP timestamp type. +/// +/// Parse using `FromStr` impl. +/// Format using the `Display` trait. +/// Convert timestamp into/from `SytemTime` to use. +/// Supports comparsion and sorting. +#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)] +pub struct HttpDate { + /// 0...59 + sec: u8, + /// 0...59 + min: u8, + /// 0...23 + hour: u8, + /// 1...31 + day: u8, + /// 1...12 + mon: u8, + /// 1970...9999 + year: u16, + /// 1...7 + wday: u8, +} + +impl HttpDate { + fn is_valid(&self) -> bool { + self.sec < 60 + && self.min < 60 + && self.hour < 24 + && self.day > 0 + && self.day < 32 + && self.mon > 0 + && self.mon <= 12 + && self.year >= 1970 + && self.year <= 9999 + && &HttpDate::from(SystemTime::from(*self)) == self + } +} + +impl From<SystemTime> for HttpDate { + fn from(v: SystemTime) -> HttpDate { + let dur = v + .duration_since(UNIX_EPOCH) + .expect("all times should be after the epoch"); + let secs_since_epoch = dur.as_secs(); + + if secs_since_epoch >= 253402300800 { + // year 9999 + panic!("date must be before year 9999"); + } + + /* 2000-03-01 (mod 400 year, immediately after feb29 */ + const LEAPOCH: i64 = 11017; + const DAYS_PER_400Y: i64 = 365 * 400 + 97; + const DAYS_PER_100Y: i64 = 365 * 100 + 24; + const DAYS_PER_4Y: i64 = 365 * 4 + 1; + + let days = (secs_since_epoch / 86400) as i64 - LEAPOCH; + let secs_of_day = secs_since_epoch % 86400; + + let mut qc_cycles = days / DAYS_PER_400Y; + let mut remdays = days % DAYS_PER_400Y; + + if remdays < 0 { + remdays += DAYS_PER_400Y; + qc_cycles -= 1; + } + + let mut c_cycles = remdays / DAYS_PER_100Y; + if c_cycles == 4 { + c_cycles -= 1; + } + remdays -= c_cycles * DAYS_PER_100Y; + + let mut q_cycles = remdays / DAYS_PER_4Y; + if q_cycles == 25 { + q_cycles -= 1; + } + remdays -= q_cycles * DAYS_PER_4Y; + + let mut remyears = remdays / 365; + if remyears == 4 { + remyears -= 1; + } + remdays -= remyears * 365; + + let mut year = 2000 + remyears + 4 * q_cycles + 100 * c_cycles + 400 * qc_cycles; + + let months = [31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31, 29]; + let mut mon = 0; + for mon_len in months.iter() { + mon += 1; + if remdays < *mon_len { + break; + } + remdays -= *mon_len; + } + let mday = remdays + 1; + let mon = if mon + 2 > 12 { + year += 1; + mon - 10 + } else { + mon + 2 + }; + + let mut wday = (3 + days) % 7; + if wday <= 0 { + wday += 7 + }; + + HttpDate { + sec: (secs_of_day % 60) as u8, + min: ((secs_of_day % 3600) / 60) as u8, + hour: (secs_of_day / 3600) as u8, + day: mday as u8, + mon: mon as u8, + year: year as u16, + wday: wday as u8, + } + } +} + +impl From<HttpDate> for SystemTime { + fn from(v: HttpDate) -> SystemTime { + let leap_years = + ((v.year - 1) - 1968) / 4 - ((v.year - 1) - 1900) / 100 + ((v.year - 1) - 1600) / 400; + let mut ydays = match v.mon { + 1 => 0, + 2 => 31, + 3 => 59, + 4 => 90, + 5 => 120, + 6 => 151, + 7 => 181, + 8 => 212, + 9 => 243, + 10 => 273, + 11 => 304, + 12 => 334, + _ => unreachable!(), + } + v.day as u64 + - 1; + if is_leap_year(v.year) && v.mon > 2 { + ydays += 1; + } + let days = (v.year as u64 - 1970) * 365 + leap_years as u64 + ydays; + UNIX_EPOCH + + Duration::from_secs( + v.sec as u64 + v.min as u64 * 60 + v.hour as u64 * 3600 + days * 86400, + ) + } +} + +impl FromStr for HttpDate { + type Err = Error; + + fn from_str(s: &str) -> Result<HttpDate, Error> { + if !s.is_ascii() { + return Err(Error(())); + } + let x = s.trim().as_bytes(); + let date = parse_imf_fixdate(x) + .or_else(|_| parse_rfc850_date(x)) + .or_else(|_| parse_asctime(x))?; + if !date.is_valid() { + return Err(Error(())); + } + Ok(date) + } +} + +impl Display for HttpDate { + fn fmt(&self, f: &mut Formatter) -> fmt::Result { + let wday = match self.wday { + 1 => b"Mon", + 2 => b"Tue", + 3 => b"Wed", + 4 => b"Thu", + 5 => b"Fri", + 6 => b"Sat", + 7 => b"Sun", + _ => unreachable!(), + }; + + let mon = match self.mon { + 1 => b"Jan", + 2 => b"Feb", + 3 => b"Mar", + 4 => b"Apr", + 5 => b"May", + 6 => b"Jun", + 7 => b"Jul", + 8 => b"Aug", + 9 => b"Sep", + 10 => b"Oct", + 11 => b"Nov", + 12 => b"Dec", + _ => unreachable!(), + }; + + let mut buf: [u8; 29] = *b" , 00 0000 00:00:00 GMT"; + buf[0] = wday[0]; + buf[1] = wday[1]; + buf[2] = wday[2]; + buf[5] = b'0' + (self.day / 10) as u8; + buf[6] = b'0' + (self.day % 10) as u8; + buf[8] = mon[0]; + buf[9] = mon[1]; + buf[10] = mon[2]; + buf[12] = b'0' + (self.year / 1000) as u8; + buf[13] = b'0' + (self.year / 100 % 10) as u8; + buf[14] = b'0' + (self.year / 10 % 10) as u8; + buf[15] = b'0' + (self.year % 10) as u8; + buf[17] = b'0' + (self.hour / 10) as u8; + buf[18] = b'0' + (self.hour % 10) as u8; + buf[20] = b'0' + (self.min / 10) as u8; + buf[21] = b'0' + (self.min % 10) as u8; + buf[23] = b'0' + (self.sec / 10) as u8; + buf[24] = b'0' + (self.sec % 10) as u8; + f.write_str(std::str::from_utf8(&buf[..]).unwrap()) + } +} + +impl Ord for HttpDate { + fn cmp(&self, other: &HttpDate) -> cmp::Ordering { + SystemTime::from(*self).cmp(&SystemTime::from(*other)) + } +} + +impl PartialOrd for HttpDate { + fn partial_cmp(&self, other: &HttpDate) -> Option<cmp::Ordering> { + Some(self.cmp(other)) + } +} + +fn toint_1(x: u8) -> Result<u8, Error> { + let result = x.wrapping_sub(b'0'); + if result < 10 { + Ok(result) + } else { + Err(Error(())) + } +} + +fn toint_2(s: &[u8]) -> Result<u8, Error> { + let high = s[0].wrapping_sub(b'0'); + let low = s[1].wrapping_sub(b'0'); + + if high < 10 && low < 10 { + Ok(high * 10 + low) + } else { + Err(Error(())) + } +} + +#[allow(clippy::many_single_char_names)] +fn toint_4(s: &[u8]) -> Result<u16, Error> { + let a = u16::from(s[0].wrapping_sub(b'0')); + let b = u16::from(s[1].wrapping_sub(b'0')); + let c = u16::from(s[2].wrapping_sub(b'0')); + let d = u16::from(s[3].wrapping_sub(b'0')); + + if a < 10 && b < 10 && c < 10 && d < 10 { + Ok(a * 1000 + b * 100 + c * 10 + d) + } else { + Err(Error(())) + } +} + +fn parse_imf_fixdate(s: &[u8]) -> Result<HttpDate, Error> { + // Example: `Sun, 06 Nov 1994 08:49:37 GMT` + if s.len() != 29 || &s[25..] != b" GMT" || s[16] != b' ' || s[19] != b':' || s[22] != b':' { + return Err(Error(())); + } + Ok(HttpDate { + sec: toint_2(&s[23..25])?, + min: toint_2(&s[20..22])?, + hour: toint_2(&s[17..19])?, + day: toint_2(&s[5..7])?, + mon: match &s[7..12] { + b" Jan " => 1, + b" Feb " => 2, + b" Mar " => 3, + b" Apr " => 4, + b" May " => 5, + b" Jun " => 6, + b" Jul " => 7, + b" Aug " => 8, + b" Sep " => 9, + b" Oct " => 10, + b" Nov " => 11, + b" Dec " => 12, + _ => return Err(Error(())), + }, + year: toint_4(&s[12..16])?, + wday: match &s[..5] { + b"Mon, " => 1, + b"Tue, " => 2, + b"Wed, " => 3, + b"Thu, " => 4, + b"Fri, " => 5, + b"Sat, " => 6, + b"Sun, " => 7, + _ => return Err(Error(())), + }, + }) +} + +fn parse_rfc850_date(s: &[u8]) -> Result<HttpDate, Error> { + // Example: `Sunday, 06-Nov-94 08:49:37 GMT` + if s.len() < 23 { + return Err(Error(())); + } + + fn wday<'a>(s: &'a [u8], wday: u8, name: &'static [u8]) -> Option<(u8, &'a [u8])> { + if &s[0..name.len()] == name { + return Some((wday, &s[name.len()..])); + } + None + } + let (wday, s) = wday(s, 1, b"Monday, ") + .or_else(|| wday(s, 2, b"Tuesday, ")) + .or_else(|| wday(s, 3, b"Wednesday, ")) + .or_else(|| wday(s, 4, b"Thursday, ")) + .or_else(|| wday(s, 5, b"Friday, ")) + .or_else(|| wday(s, 6, b"Saturday, ")) + .or_else(|| wday(s, 7, b"Sunday, ")) + .ok_or(Error(()))?; + if s.len() != 22 || s[12] != b':' || s[15] != b':' || &s[18..22] != b" GMT" { + return Err(Error(())); + } + let mut year = u16::from(toint_2(&s[7..9])?); + if year < 70 { + year += 2000; + } else { + year += 1900; + } + Ok(HttpDate { + sec: toint_2(&s[16..18])?, + min: toint_2(&s[13..15])?, + hour: toint_2(&s[10..12])?, + day: toint_2(&s[0..2])?, + mon: match &s[2..7] { + b"-Jan-" => 1, + b"-Feb-" => 2, + b"-Mar-" => 3, + b"-Apr-" => 4, + b"-May-" => 5, + b"-Jun-" => 6, + b"-Jul-" => 7, + b"-Aug-" => 8, + b"-Sep-" => 9, + b"-Oct-" => 10, + b"-Nov-" => 11, + b"-Dec-" => 12, + _ => return Err(Error(())), + }, + year, + wday, + }) +} + +fn parse_asctime(s: &[u8]) -> Result<HttpDate, Error> { + // Example: `Sun Nov 6 08:49:37 1994` + if s.len() != 24 || s[10] != b' ' || s[13] != b':' || s[16] != b':' || s[19] != b' ' { + return Err(Error(())); + } + Ok(HttpDate { + sec: toint_2(&s[17..19])?, + min: toint_2(&s[14..16])?, + hour: toint_2(&s[11..13])?, + day: { + let x = &s[8..10]; + { + if x[0] == b' ' { + toint_1(x[1]) + } else { + toint_2(x) + } + }? + }, + mon: match &s[4..8] { + b"Jan " => 1, + b"Feb " => 2, + b"Mar " => 3, + b"Apr " => 4, + b"May " => 5, + b"Jun " => 6, + b"Jul " => 7, + b"Aug " => 8, + b"Sep " => 9, + b"Oct " => 10, + b"Nov " => 11, + b"Dec " => 12, + _ => return Err(Error(())), + }, + year: toint_4(&s[20..24])?, + wday: match &s[0..4] { + b"Mon " => 1, + b"Tue " => 2, + b"Wed " => 3, + b"Thu " => 4, + b"Fri " => 5, + b"Sat " => 6, + b"Sun " => 7, + _ => return Err(Error(())), + }, + }) +} + +fn is_leap_year(y: u16) -> bool { + y % 4 == 0 && (y % 100 != 0 || y % 400 == 0) +} diff --git a/third_party/rust/httpdate/src/lib.rs b/third_party/rust/httpdate/src/lib.rs new file mode 100644 index 0000000000..32603d6301 --- /dev/null +++ b/third_party/rust/httpdate/src/lib.rs @@ -0,0 +1,160 @@ +//! Date and time utils for HTTP. +//! +//! Multiple HTTP header fields store timestamps. +//! For example a response created on May 15, 2015 may contain the header +//! `Date: Fri, 15 May 2015 15:34:21 GMT`. Since the timestamp does not +//! contain any timezone or leap second information it is equvivalent to +//! writing 1431696861 Unix time. Rust’s `SystemTime` is used to store +//! these timestamps. +//! +//! This crate provides two public functions: +//! +//! * `parse_http_date` to parse a HTTP datetime string to a system time +//! * `fmt_http_date` to format a system time to a IMF-fixdate +//! +//! In addition it exposes the `HttpDate` type that can be used to parse +//! and format timestamps. Convert a sytem time to `HttpDate` and vice versa. +//! The `HttpType` (8 bytes) is smaller than `SystemTime` (16 bytes) and +//! using the display impl avoids a temporary allocation. +#![forbid(unsafe_code)] + +use std::error; +use std::fmt::{self, Display, Formatter}; +use std::io; +use std::time::SystemTime; + +pub use date::HttpDate; + +mod date; + +/// An opaque error type for all parsing errors. +#[derive(Debug)] +pub struct Error(()); + +impl error::Error for Error {} + +impl Display for Error { + fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> { + f.write_str("string contains no or an invalid date") + } +} + +impl From<Error> for io::Error { + fn from(e: Error) -> io::Error { + io::Error::new(io::ErrorKind::Other, e) + } +} + +/// Parse a date from an HTTP header field. +/// +/// Supports the preferred IMF-fixdate and the legacy RFC 805 and +/// ascdate formats. Two digit years are mapped to dates between +/// 1970 and 2069. +pub fn parse_http_date(s: &str) -> Result<SystemTime, Error> { + s.parse::<HttpDate>().map(|d| d.into()) +} + +/// Format a date to be used in a HTTP header field. +/// +/// Dates are formatted as IMF-fixdate: `Fri, 15 May 2015 15:34:21 GMT`. +pub fn fmt_http_date(d: SystemTime) -> String { + format!("{}", HttpDate::from(d)) +} + +#[cfg(test)] +mod tests { + use std::str; + use std::time::{Duration, UNIX_EPOCH}; + + use super::{fmt_http_date, parse_http_date, HttpDate}; + + #[test] + fn test_rfc_example() { + let d = UNIX_EPOCH + Duration::from_secs(784111777); + assert_eq!( + d, + parse_http_date("Sun, 06 Nov 1994 08:49:37 GMT").expect("#1") + ); + assert_eq!( + d, + parse_http_date("Sunday, 06-Nov-94 08:49:37 GMT").expect("#2") + ); + assert_eq!(d, parse_http_date("Sun Nov 6 08:49:37 1994").expect("#3")); + } + + #[test] + fn test2() { + let d = UNIX_EPOCH + Duration::from_secs(1475419451); + assert_eq!( + d, + parse_http_date("Sun, 02 Oct 2016 14:44:11 GMT").expect("#1") + ); + assert!(parse_http_date("Sun Nov 10 08:00:00 1000").is_err()); + assert!(parse_http_date("Sun Nov 10 08*00:00 2000").is_err()); + assert!(parse_http_date("Sunday, 06-Nov-94 08+49:37 GMT").is_err()); + } + + #[test] + fn test3() { + let mut d = UNIX_EPOCH; + assert_eq!(d, parse_http_date("Thu, 01 Jan 1970 00:00:00 GMT").unwrap()); + d += Duration::from_secs(3600); + assert_eq!(d, parse_http_date("Thu, 01 Jan 1970 01:00:00 GMT").unwrap()); + d += Duration::from_secs(86400); + assert_eq!(d, parse_http_date("Fri, 02 Jan 1970 01:00:00 GMT").unwrap()); + d += Duration::from_secs(2592000); + assert_eq!(d, parse_http_date("Sun, 01 Feb 1970 01:00:00 GMT").unwrap()); + d += Duration::from_secs(2592000); + assert_eq!(d, parse_http_date("Tue, 03 Mar 1970 01:00:00 GMT").unwrap()); + d += Duration::from_secs(31536005); + assert_eq!(d, parse_http_date("Wed, 03 Mar 1971 01:00:05 GMT").unwrap()); + d += Duration::from_secs(15552000); + assert_eq!(d, parse_http_date("Mon, 30 Aug 1971 01:00:05 GMT").unwrap()); + d += Duration::from_secs(6048000); + assert_eq!(d, parse_http_date("Mon, 08 Nov 1971 01:00:05 GMT").unwrap()); + d += Duration::from_secs(864000000); + assert_eq!(d, parse_http_date("Fri, 26 Mar 1999 01:00:05 GMT").unwrap()); + } + + #[test] + fn test_fmt() { + let d = UNIX_EPOCH; + assert_eq!(fmt_http_date(d), "Thu, 01 Jan 1970 00:00:00 GMT"); + let d = UNIX_EPOCH + Duration::from_secs(1475419451); + assert_eq!(fmt_http_date(d), "Sun, 02 Oct 2016 14:44:11 GMT"); + } + + #[allow(dead_code)] + fn testcase(data: &[u8]) { + if let Ok(s) = str::from_utf8(data) { + println!("{:?}", s); + if let Ok(d) = parse_http_date(s) { + let o = fmt_http_date(d); + assert!(!o.is_empty()); + } + } + } + + #[test] + fn size_of() { + assert_eq!(::std::mem::size_of::<HttpDate>(), 8); + } + + #[test] + fn test_date_comparison() { + let a = UNIX_EPOCH + Duration::from_secs(784111777); + let b = a + Duration::from_secs(30); + assert!(a < b); + let a_date: HttpDate = a.into(); + let b_date: HttpDate = b.into(); + assert!(a_date < b_date); + assert_eq!(a_date.cmp(&b_date), ::std::cmp::Ordering::Less) + } + + #[test] + fn test_parse_bad_date() { + // 1994-11-07 is actually a Monday + let parsed = "Sun, 07 Nov 1994 08:48:37 GMT".parse::<HttpDate>(); + assert!(parsed.is_err()) + } +} |