diff options
Diffstat (limited to 'vendor/httpdate-0.3.2')
| -rw-r--r-- | vendor/httpdate-0.3.2/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | vendor/httpdate-0.3.2/Cargo.toml | 25 | ||||
| -rw-r--r-- | vendor/httpdate-0.3.2/LICENSE-APACHE | 201 | ||||
| -rw-r--r-- | vendor/httpdate-0.3.2/LICENSE-MIT | 19 | ||||
| -rw-r--r-- | vendor/httpdate-0.3.2/README.md | 22 | ||||
| -rw-r--r-- | vendor/httpdate-0.3.2/src/httpdate.rs | 383 | ||||
| -rw-r--r-- | vendor/httpdate-0.3.2/src/lib.rs | 149 |
7 files changed, 800 insertions, 0 deletions
diff --git a/vendor/httpdate-0.3.2/.cargo-checksum.json b/vendor/httpdate-0.3.2/.cargo-checksum.json new file mode 100644 index 00000000..e8f7114d --- /dev/null +++ b/vendor/httpdate-0.3.2/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"62ac69b9066d6ff0b2ace8a44f5f583631b79deca33dc4f680e0723209bbaa9d","LICENSE-APACHE":"4d10fe5f3aa176b05b229a248866bad70b834c173f1252a814ff4748d8a13837","LICENSE-MIT":"934887691e05d69d7c86ad3f2c360980fa30c15b035e351f3c9865e99da4debc","README.md":"7b1979a97e68f9a04d1bf6e04ea29d8b8c8c2ac6eda0732872434eaaeceeeb5a","src/httpdate.rs":"d074a63c7eb0686475b878848306299dad45f42f608a437af022ccc0475cd04d","src/lib.rs":"b1877f106fa29cccae2f464aa6af08cb0c0a8fd4f1a781baaaf8584854bba48c"},"package":"494b4d60369511e7dea41cf646832512a94e542f68bb9c49e54518e0f468eb47"}
\ No newline at end of file diff --git a/vendor/httpdate-0.3.2/Cargo.toml b/vendor/httpdate-0.3.2/Cargo.toml new file mode 100644 index 00000000..43070d8b --- /dev/null +++ b/vendor/httpdate-0.3.2/Cargo.toml @@ -0,0 +1,25 @@ +# 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 believe there's an error in this file please file an +# issue against the rust-lang/cargo repository. If you're +# editing this file be aware that the upstream Cargo.toml +# will likely look very different (and much more reasonable) + +[package] +name = "httpdate" +version = "0.3.2" +authors = ["Pyfisch <pyfisch@gmail.com>"] +description = "HTTP date parsing and formatting" +documentation = "https://pyfisch.github.io/httpdate/httpdate/index.html" +readme = "README.md" +keywords = ["http", "date", "time", "simple", "timestamp"] +license = "MIT/Apache-2.0" +repository = "https://github.com/pyfisch/httpdate" + +[features] +unstable = [] diff --git a/vendor/httpdate-0.3.2/LICENSE-APACHE b/vendor/httpdate-0.3.2/LICENSE-APACHE new file mode 100644 index 00000000..cd482d89 --- /dev/null +++ b/vendor/httpdate-0.3.2/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/vendor/httpdate-0.3.2/README.md b/vendor/httpdate-0.3.2/README.md new file mode 100644 index 00000000..f0f55aa3 --- /dev/null +++ b/vendor/httpdate-0.3.2/README.md @@ -0,0 +1,22 @@ +# Date and time utils for HTTP. + +[](https://travis-ci.org/pyfisch/httpdate) +[](https://crates.io/crates/httpdate) +[Documentation](https://pyfisch.github.io/httpdate/httpdate/index.html) + +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 + +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/vendor/httpdate-0.3.2/src/httpdate.rs b/vendor/httpdate-0.3.2/src/httpdate.rs new file mode 100644 index 00000000..0fb7741f --- /dev/null +++ b/vendor/httpdate-0.3.2/src/httpdate.rs @@ -0,0 +1,383 @@ +#[allow(unused_imports)] +use std::ascii::AsciiExt; +use std::fmt::{self, Display, Formatter}; +use std::cmp; +use std::str::{FromStr, from_utf8_unchecked}; +use std::time::{Duration, SystemTime, UNIX_EPOCH}; + +use 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, Ord)] +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 + } +} + +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] = [ + // Too long to write as: b"Thu, 01 Jan 1970 00:00:00 GMT" + b' ', b' ', b' ', b',', b' ', + b'0', b'0', b' ', b' ', b' ', b' ', b' ', + b'0', b'0', b'0', b'0', b' ', + b'0', b'0', b':', b'0', b'0', b':', b'0', b'0', + b' ', b'G', b'M', b'T', + ]; + 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(unsafe { from_utf8_unchecked(&buf[..]) }) + } +} + +impl PartialEq for HttpDate { + fn eq(&self, other: &HttpDate) -> bool { + SystemTime::from(*self) == SystemTime::from(*other) + } +} + +impl PartialOrd for HttpDate { + fn partial_cmp(&self, other: &HttpDate) -> Option<cmp::Ordering> { + SystemTime::from(*self).partial_cmp(&SystemTime::from(*other)) + } +} + +/// Convert &[u8] to &str with zero checks. +/// +/// For internal use only. +/// Intended to be used with ASCII-only strings. +fn conv(s: &[u8]) -> &str { + unsafe { from_utf8_unchecked(s) } +} + +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: conv(&s[23..25]).parse()?, + min: conv(&s[20..22]).parse()?, + hour: conv(&s[17..19]).parse()?, + day: conv(&s[5..7]).parse()?, + 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: conv(&s[12..16]).parse()?, + 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 = conv(&s[7..9]).parse::<u16>()?; + if year < 70 { + year += 2000; + } else { + year += 1900; + } + Ok(HttpDate { + sec: conv(&s[16..18]).parse()?, + min: conv(&s[13..15]).parse()?, + hour: conv(&s[10..12]).parse()?, + day: conv(&s[0..2]).parse()?, + 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: year, + wday: 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: conv(&s[17..19]).parse()?, + min: conv(&s[14..16]).parse()?, + hour: conv(&s[11..13]).parse()?, + day: { + let x = &s[8..10]; + conv(if x[0] == b' ' { + &x[1..2] + } else { + x + }) + .parse()? + }, + 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: conv(&s[20..24]).parse()?, + 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/vendor/httpdate-0.3.2/src/lib.rs b/vendor/httpdate-0.3.2/src/lib.rs new file mode 100644 index 00000000..9cffc882 --- /dev/null +++ b/vendor/httpdate-0.3.2/src/lib.rs @@ -0,0 +1,149 @@ +//! 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. + +use std::error; +use std::fmt::{self, Display, Formatter}; +use std::io; +use std::num::ParseIntError; +use std::time::SystemTime; + +pub use httpdate::HttpDate; + +mod httpdate; + +/// An opaque error type for all parsing errors. +#[derive(Debug)] +pub struct Error(()); + +impl error::Error for Error { + fn description(&self) -> &str { + "string contains no or an invalid date" + } + fn cause(&self) -> Option<&error::Error> { + None + } +} + +impl Display for Error { + fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> { + f.write_str(error::Error::description(self)) + } +} + +impl From<ParseIntError> for Error { + fn from(_: ParseIntError) -> Error { + Error(()) + } +} + +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::{HttpDate, parse_http_date, fmt_http_date}; + + #[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); + } +} |