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Code Issues Projects Releases Wiki Activity

Quality / QualityItem improvements (#2486)

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Rob Ede 2021-12-05 03:38:08 +00:00 committed by GitHub
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16 changed files with 494 additions and 257 deletions
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2
.cargo/config.toml
View file

@ -5,8 +5,10 @@ lint-all = "clippy --workspace --all-features --tests --examples --bins -- -Dcli
# lib checking
ci-check-min = "hack --workspace check --no-default-features"
ci-check-default = "hack --workspace check"
ci-check-default-tests = "check --workspace --tests"
ci-check-all-feature-powerset="hack --workspace --feature-powerset --skip=__compress,io-uring check"
ci-check-all-feature-powerset-linux="hack --workspace --feature-powerset --skip=__compress check"
# testing
ci-doctest-default = "test --workspace --doc --no-fail-fast -- --nocapture"
ci-doctest = "test --workspace --all-features --doc --no-fail-fast -- --nocapture"

6
actix-http/CHANGES.md
View file

@ -11,6 +11,9 @@
* `impl Clone for ws::HandshakeError`. [#2468]
* `#[must_use]` for `ws::Codec` to prevent subtle bugs. [#1920]
* `impl Default ` for `ws::Codec`. [#1920]
* `header::QualityItem::{max, min}`. [#2486]
* `header::Quality::{MAX, MIN}`. [#2486]
* `impl Display` for `header::Quality`. [#2486]
### Changed
* Rename `body::BoxBody::{from_body => new}`. [#2468]
@ -27,10 +30,13 @@
* Remove unnecessary `MessageBody` bound on types passed to `body::AnyBody::new`. [#2468]
* Move `body::AnyBody` to `awc`. Replaced with `EitherBody` and `BoxBody`. [#2468]
* `impl Copy` for `ws::Codec`. [#1920]
* `header::qitem` helper. Replaced with `header::QualityItem::max` [#2486]
* `impl TryFrom<u16>` for `header::Quality` [#2486]
[#2483]: https://github.com/actix/actix-web/pull/2483
[#2468]: https://github.com/actix/actix-web/pull/2468
[#1920]: https://github.com/actix/actix-web/pull/1920
[#2486]: https://github.com/actix/actix-web/pull/2486
## 3.0.0-beta.14 - 2021-11-30

4
actix-http/Cargo.toml
View file

@ -112,3 +112,7 @@ harness = false
[[bench]]
name = "uninit-headers"
harness = false
[[bench]]
name = "quality-value"
harness = false

90
actix-http/benches/quality-value.rs Normal file
View file

@ -0,0 +1,90 @@
use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
const CODES: &[u16] = &[0, 1000, 201, 800, 550];
fn bench_quality_display_impls(c: &mut Criterion) {
let mut group = c.benchmark_group("quality value display impls");
for i in CODES.iter() {
group.bench_with_input(BenchmarkId::new("New (fast?)", i), i, |b, &i| {
b.iter(|| _new::Quality(i).to_string())
});
group.bench_with_input(BenchmarkId::new("Naive", i), i, |b, &i| {
b.iter(|| _naive::Quality(i).to_string())
});
}
group.finish();
}
criterion_group!(benches, bench_quality_display_impls);
criterion_main!(benches);
mod _new {
use std::fmt;
pub struct Quality(pub(crate) u16);
impl fmt::Display for Quality {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.0 {
0 => f.write_str("0"),
1000 => f.write_str("1"),
// some number in the range 1–999
x => {
f.write_str("0.")?;
// this implementation avoids string allocation otherwise required
// for `.trim_end_matches('0')`
if x < 10 {
f.write_str("00")?;
// 0 is handled so it's not possible to have a trailing 0, we can just return
itoa::fmt(f, x)
} else if x < 100 {
f.write_str("0")?;
if x % 10 == 0 {
// trailing 0, divide by 10 and write
itoa::fmt(f, x / 10)
} else {
itoa::fmt(f, x)
}
} else {
// x is in range 101–999
if x % 100 == 0 {
// two trailing 0s, divide by 100 and write
itoa::fmt(f, x / 100)
} else if x % 10 == 0 {
// one trailing 0, divide by 10 and write
itoa::fmt(f, x / 10)
} else {
itoa::fmt(f, x)
}
}
}
}
}
}
}
mod _naive {
use std::fmt;
pub struct Quality(pub(crate) u16);
impl fmt::Display for Quality {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.0 {
0 => f.write_str("0"),
1000 => f.write_str("1"),
x => {
write!(f, "{}", format!("{:03}", x).trim_end_matches('0'))
}
}
}
}
}

7
actix-http/src/header/mod.rs
View file

@ -38,13 +38,14 @@ pub mod map;
mod shared;
mod utils;
#[doc(hidden)]
pub use self::shared::*;
pub use self::as_name::AsHeaderName;
pub use self::into_pair::IntoHeaderPair;
pub use self::into_value::IntoHeaderValue;
pub use self::map::HeaderMap;
pub use self::shared::{
parse_extended_value, q, Charset, ContentEncoding, ExtendedValue, HttpDate,
LanguageTag, Quality, QualityItem,
};
pub use self::utils::{
fmt_comma_delimited, from_comma_delimited, from_one_raw_str, http_percent_encode,
};

2
actix-http/src/header/shared/extended.rs
View file

@ -1,4 +1,4 @@
// Originally from hyper v0.11.27 src/header/parsing.rs
//! Originally taken from `hyper::header::parsing`.
use std::{fmt, str::FromStr};

4
actix-http/src/header/shared/mod.rs
View file

@ -4,11 +4,13 @@ mod charset;
mod content_encoding;
mod extended;
mod http_date;
mod quality;
mod quality_item;
pub use self::charset::Charset;
pub use self::content_encoding::ContentEncoding;
pub use self::extended::{parse_extended_value, ExtendedValue};
pub use self::http_date::HttpDate;
pub use self::quality_item::{q, qitem, Quality, QualityItem};
pub use self::quality::{q, Quality};
pub use self::quality_item::QualityItem;
pub use language_tags::LanguageTag;

208
actix-http/src/header/shared/quality.rs Normal file
View file

@ -0,0 +1,208 @@
use std::{
convert::{TryFrom, TryInto},
fmt,
};
use derive_more::{Display, Error};
const MAX_QUALITY_INT: u16 = 1000;
const MAX_QUALITY_FLOAT: f32 = 1.0;
/// Represents a quality used in q-factor values.
///
/// The default value is equivalent to `q=1.0` (the [max](Self::MAX) value).
///
/// # Implementation notes
/// The quality value is defined as a number between 0.0 and 1.0 with three decimal places.
/// This means there are 1001 possible values. Since floating point numbers are not exact and the
/// smallest floating point data type (`f32`) consumes four bytes, we use an `u16` value to store
/// the quality internally.
///
/// [RFC 7231 §5.3.1] gives more information on quality values in HTTP header fields.
///
/// # Examples
/// ```
/// use actix_http::header::{Quality, q};
/// assert_eq!(q(1.0), Quality::MAX);
///
/// assert_eq!(q(0.42).to_string(), "0.42");
/// assert_eq!(q(1.0).to_string(), "1");
/// assert_eq!(Quality::MIN.to_string(), "0");
/// ```
///
/// [RFC 7231 §5.3.1]: https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.1
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct Quality(pub(super) u16);
impl Quality {
/// The maximum quality value, equivalent to `q=1.0`.
pub const MAX: Quality = Quality(MAX_QUALITY_INT);
/// The minimum quality value, equivalent to `q=0.0`.
pub const MIN: Quality = Quality(0);
/// Converts a float in the range 0.0–1.0 to a `Quality`.
///
/// Intentionally private. External uses should rely on the `TryFrom` impl.
///
/// # Panics
/// Panics in debug mode when value is not in the range 0.0 <= n <= 1.0.
fn from_f32(value: f32) -> Self {
// Check that `value` is within range should be done before calling this method.
// Just in case, this debug_assert should catch if we were forgetful.
debug_assert!(
(0.0f32..=1.0f32).contains(&value),
"q value must be between 0.0 and 1.0"
);
Quality((value * MAX_QUALITY_INT as f32) as u16)
}
}
/// The default value is [`Quality::MAX`].
impl Default for Quality {
fn default() -> Quality {
Quality::MAX
}
}
impl fmt::Display for Quality {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.0 {
0 => f.write_str("0"),
MAX_QUALITY_INT => f.write_str("1"),
// some number in the range 1–999
x => {
f.write_str("0.")?;
// This implementation avoids string allocation for removing trailing zeroes.
// In benchmarks it is twice as fast as approach using something like
// `format!("{}").trim_end_matches('0')` for non-fast-path quality values.
if x < 10 {
// x in is range 1–9
f.write_str("00")?;
// 0 is already handled so it's not possible to have a trailing 0 in this range
// we can just write the integer
itoa::fmt(f, x)
} else if x < 100 {
// x in is range 10–99
f.write_str("0")?;
if x % 10 == 0 {
// trailing 0, divide by 10 and write
itoa::fmt(f, x / 10)
} else {
itoa::fmt(f, x)
}
} else {
// x is in range 100–999
if x % 100 == 0 {
// two trailing 0s, divide by 100 and write
itoa::fmt(f, x / 100)
} else if x % 10 == 0 {
// one trailing 0, divide by 10 and write
itoa::fmt(f, x / 10)
} else {
itoa::fmt(f, x)
}
}
}
}
}
}
#[derive(Debug, Clone, Display, Error)]
#[display(fmt = "quality out of bounds")]
#[non_exhaustive]
pub struct QualityOutOfBounds;
impl TryFrom<f32> for Quality {
type Error = QualityOutOfBounds;
#[inline]
fn try_from(value: f32) -> Result<Self, Self::Error> {
if (0.0..=MAX_QUALITY_FLOAT).contains(&value) {
Ok(Quality::from_f32(value))
} else {
Err(QualityOutOfBounds)
}
}
}
/// Convenience function to create a [`Quality`] from an `f32` (0.0–1.0).
///
/// Not recommended for use with user input. Rely on the `TryFrom` impls where possible.
///
/// # Panics
/// Panics if value is out of range.
///
/// # Examples
/// ```
/// # use actix_http::header::{q, Quality};
/// let q1 = q(1.0);
/// assert_eq!(q1, Quality::MAX);
///
/// let q2 = q(0.0);
/// assert_eq!(q2, Quality::MIN);
///
/// let q3 = q(0.42);
/// ```
///
/// An out-of-range `f32` quality will panic.
/// ```should_panic
/// # use actix_http::header::q;
/// let _q2 = q(1.42);
/// ```
#[inline]
pub fn q<T>(quality: T) -> Quality
where
T: TryInto<Quality>,
T::Error: fmt::Debug,
{
quality.try_into().expect("quality value was out of bounds")
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn q_helper() {
assert_eq!(q(0.5), Quality(500));
}
#[test]
fn display_output() {
assert_eq!(q(0.0).to_string(), "0");
assert_eq!(q(1.0).to_string(), "1");
assert_eq!(q(0.001).to_string(), "0.001");
assert_eq!(q(0.5).to_string(), "0.5");
assert_eq!(q(0.22).to_string(), "0.22");
assert_eq!(q(0.123).to_string(), "0.123");
assert_eq!(q(0.999).to_string(), "0.999");
for x in 0..=1000 {
// if trailing zeroes are handled correctly, we would not expect the serialized length
// to ever exceed "0." + 3 decimal places = 5 in length
assert!(q(x as f32 / 1000.0).to_string().len() <= 5);
}
}
#[test]
#[should_panic]
fn negative_quality() {
q(-1.0);
}
#[test]
#[should_panic]
fn quality_out_of_bounds() {
q(2.0);
}
}

216
actix-http/src/header/shared/quality_item.rs
View file

@ -1,85 +1,36 @@
use std::{
cmp,
convert::{TryFrom, TryInto},
fmt, str,
};
use derive_more::{Display, Error};
use std::{cmp, convert::TryFrom as _, fmt, str};
use crate::error::ParseError;
const MAX_QUALITY: u16 = 1000;
const MAX_FLOAT_QUALITY: f32 = 1.0;
/// Represents a quality used in quality values.
///
/// Can be created with the [`q`] function.
///
/// # Implementation notes
///
/// The quality value is defined as a number between 0 and 1 with three decimal
/// places. This means there are 1001 possible values. Since floating point
/// numbers are not exact and the smallest floating point data type (`f32`)
/// consumes four bytes, hyper uses an `u16` value to store the
/// quality internally. For performance reasons you may set quality directly to
/// a value between 0 and 1000 e.g. `Quality(532)` matches the quality
/// `q=0.532`.
///
/// [RFC 7231 §5.3.1](https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.1) gives more
/// information on quality values in HTTP header fields.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct Quality(u16);
impl Quality {
/// # Panics
/// Panics in debug mode when value is not in the range 0.0 <= n <= 1.0.
fn from_f32(value: f32) -> Self {
// Check that `value` is within range should be done before calling this method.
// Just in case, this debug_assert should catch if we were forgetful.
debug_assert!(
(0.0f32..=1.0f32).contains(&value),
"q value must be between 0.0 and 1.0"
);
Quality((value * MAX_QUALITY as f32) as u16)
}
}
impl Default for Quality {
fn default() -> Quality {
Quality(MAX_QUALITY)
}
}
#[derive(Debug, Clone, Display, Error)]
pub struct QualityOutOfBounds;
impl TryFrom<u16> for Quality {
type Error = QualityOutOfBounds;
fn try_from(value: u16) -> Result<Self, Self::Error> {
if (0..=MAX_QUALITY).contains(&value) {
Ok(Quality(value))
} else {
Err(QualityOutOfBounds)
}
}
}
impl TryFrom<f32> for Quality {
type Error = QualityOutOfBounds;
fn try_from(value: f32) -> Result<Self, Self::Error> {
if (0.0..=MAX_FLOAT_QUALITY).contains(&value) {
Ok(Quality::from_f32(value))
} else {
Err(QualityOutOfBounds)
}
}
}
use super::Quality;
/// Represents an item with a quality value as defined
/// in [RFC 7231 §5.3.1](https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.1).
///
/// # Parsing and Formatting
/// This wrapper be used to parse header value items that have a q-factor annotation as well as
/// serialize items with a their q-factor.
///
/// # Ordering
/// Since this context of use for this type is header value items, ordering is defined for
/// `QualityItem`s but _only_ considers the item's quality. Order of appearance should be used as
/// the secondary sorting parameter; i.e., a stable sort over the quality values will produce a
/// correctly sorted sequence.
///
/// # Examples
/// ```
/// # use actix_http::header::{QualityItem, q};
/// let q_item: QualityItem<String> = "hello;q=0.3".parse().unwrap();
/// assert_eq!(&q_item.item, "hello");
/// assert_eq!(q_item.quality, q(0.3));
///
/// // note that format is normalized compared to parsed item
/// assert_eq!(q_item.to_string(), "hello; q=0.3");
///
/// // item with q=0.3 is greater than item with q=0.1
/// let q_item_fallback: QualityItem<String> = "abc;q=0.1".parse().unwrap();
/// assert!(q_item > q_item_fallback);
/// ```
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct QualityItem<T> {
/// The wrapped contents of the field.
@ -93,12 +44,22 @@ impl<T> QualityItem<T> {
/// Constructs a new `QualityItem` from an item and a quality value.
///
/// The item can be of any type. The quality should be a value in the range [0, 1].
pub fn new(item: T, quality: Quality) -> QualityItem<T> {
pub fn new(item: T, quality: Quality) -> Self {
QualityItem { item, quality }
}
/// Constructs a new `QualityItem` from an item, using the maximum q-value.
pub fn max(item: T) -> Self {
Self::new(item, Quality::MAX)
}
/// Constructs a new `QualityItem` from an item, using the minimum q-value.
pub fn min(item: T) -> Self {
Self::new(item, Quality::MIN)
}
}
impl<T: PartialEq> cmp::PartialOrd for QualityItem<T> {
impl<T: PartialEq> PartialOrd for QualityItem<T> {
fn partial_cmp(&self, other: &QualityItem<T>) -> Option<cmp::Ordering> {
self.quality.partial_cmp(&other.quality)
}
@ -108,10 +69,12 @@ impl<T: fmt::Display> fmt::Display for QualityItem<T> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(&self.item, f)?;
match self.quality.0 {
MAX_QUALITY => Ok(()),
0 => f.write_str("; q=0"),
x => write!(f, "; q=0.{}", format!("{:03}", x).trim_end_matches('0')),
match self.quality {
// q-factor value is implied for max value
Quality::MAX => Ok(()),
Quality::MIN => f.write_str("; q=0"),
q => write!(f, "; q={}", q),
}
}
}
@ -119,78 +82,58 @@ impl<T: fmt::Display> fmt::Display for QualityItem<T> {
impl<T: str::FromStr> str::FromStr for QualityItem<T> {
type Err = ParseError;
fn from_str(qitem_str: &str) -> Result<Self, Self::Err> {
if !qitem_str.is_ascii() {
fn from_str(q_item_str: &str) -> Result<Self, Self::Err> {
if !q_item_str.is_ascii() {
return Err(ParseError::Header);
}
// Set defaults used if parsing fails.
let mut raw_item = qitem_str;
let mut quality = 1f32;
// set defaults used if quality-item parsing fails, i.e., item has no q attribute
let mut raw_item = q_item_str;
let mut quality = Quality::MAX;
// TODO: MSRV(1.52): use rsplit_once
let parts: Vec<_> = qitem_str.rsplitn(2, ';').map(str::trim).collect();
let parts = q_item_str
.rsplit_once(';')
.map(|(item, q_attr)| (item.trim(), q_attr.trim()));
if parts.len() == 2 {
if let Some((val, q_attr)) = parts {
// example for item with q-factor:
//
// gzip; q=0.65
// ^^^^^^ parts[0]
// ^^ start
// ^^^^ q_val
// ^^^^ parts[1]
// gzip;q=0.65
// ^^^^ val
// ^^^^^^ q_attr
// ^^ q
// ^^^^ q_val
if parts[0].len() < 2 {
if q_attr.len() < 2 {
// Can't possibly be an attribute since an attribute needs at least a name followed
// by an equals sign. And bare identifiers are forbidden.
return Err(ParseError::Header);
}
let start = &parts[0][0..2];
let q = &q_attr[0..2];
if start == "q=" || start == "Q=" {
let q_val = &parts[0][2..];
if q == "q=" || q == "Q=" {
let q_val = &q_attr[2..];
if q_val.len() > 5 {
// longer than 5 indicates an over-precise q-factor
return Err(ParseError::Header);
}
let q_value = q_val.parse::<f32>().map_err(|_| ParseError::Header)?;
let q_value =
Quality::try_from(q_value).map_err(|_| ParseError::Header)?;
if (0f32..=1f32).contains(&q_value) {
quality = q_value;
raw_item = parts[1];
} else {
return Err(ParseError::Header);
}
quality = q_value;
raw_item = val;
}
}
let item = raw_item.parse::<T>().map_err(|_| ParseError::Header)?;
// we already checked above that the quality is within range
Ok(QualityItem::new(item, Quality::from_f32(quality)))
Ok(QualityItem::new(item, quality))
}
}
/// Convenience function to wrap a value in a `QualityItem`
/// Sets `q` to the default 1.0
pub fn qitem<T>(item: T) -> QualityItem<T> {
QualityItem::new(item, Quality::default())
}
/// Convenience function to create a `Quality` from a float or integer.
///
/// Implemented for `u16` and `f32`. Panics if value is out of range.
pub fn q<T>(val: T) -> Quality
where
T: TryInto<Quality>,
T::Error: fmt::Debug,
{
// TODO: on next breaking change, handle unwrap differently
val.try_into().unwrap()
}
#[cfg(test)]
mod tests {
use super::*;
@ -245,7 +188,7 @@ mod tests {
#[test]
fn test_quality_item_fmt_q_1() {
use Encoding::*;
let x = qitem(Chunked);
let x = QualityItem::max(Chunked);
assert_eq!(format!("{}", x), "chunked");
}
#[test]
@ -344,25 +287,8 @@ mod tests {
fn test_quality_item_ordering() {
let x: QualityItem<Encoding> = "gzip; q=0.5".parse().ok().unwrap();
let y: QualityItem<Encoding> = "gzip; q=0.273".parse().ok().unwrap();
let comparision_result: bool = x.gt(&y);
assert!(comparision_result)
}
#[test]
fn test_quality() {
assert_eq!(q(0.5), Quality(500));
}
#[test]
#[should_panic]
fn test_quality_invalid() {
q(-1.0);
}
#[test]
#[should_panic]
fn test_quality_invalid2() {
q(2.0);
let comparison_result: bool = x.gt(&y);
assert!(comparison_result)
}
#[test]

5
actix-http/src/header/utils.rs
View file

@ -65,8 +65,9 @@ where
Ok(())
}
/// Percent encode a sequence of bytes with a character set defined in
/// <https://datatracker.ietf.org/doc/html/rfc5987#section-3.2>
/// Percent encode a sequence of bytes with a character set defined in [RFC 5987 §3.2].
///
/// [RFC 5987 §3.2]: https://datatracker.ietf.org/doc/html/rfc5987#section-3.2
#[inline]
pub fn http_percent_encode(f: &mut fmt::Formatter<'_>, bytes: &[u8]) -> fmt::Result {
let encoded = percent_encoding::percent_encode(bytes, HTTP_VALUE);

11
actix-multipart/src/server.rs
View file

@ -435,10 +435,10 @@ impl Field {
/// Returns the field's Content-Disposition.
///
/// Per [RFC 7578 §4.2]: 'Each part MUST contain a Content-Disposition header field where the
/// disposition type is "form-data". The Content-Disposition header field MUST also contain an
/// additional parameter of "name"; the value of the "name" parameter is the original field name
/// from the form.'
/// Per [RFC 7578 §4.2]: "Each part MUST contain a Content-Disposition header field where the
/// disposition type is `form-data`. The Content-Disposition header field MUST also contain an
/// additional parameter of `name`; the value of the `name` parameter is the original field name
/// from the form."
///
/// This crate validates that it exists before returning a `Field`. As such, it is safe to
/// unwrap `.content_disposition().get_name()`. The [name](Self::name) method is provided as
@ -451,7 +451,8 @@ impl Field {
/// Returns the field's name.
///
/// See [content_disposition] regarding guarantees about
/// See [content_disposition](Self::content_disposition) regarding guarantees about existence of
/// the name field.
pub fn name(&self) -> &str {
self.content_disposition()
.get_name()

74
src/http/header/accept.rs
View file

@ -2,7 +2,7 @@ use std::cmp::Ordering;
use mime::Mime;
use super::{qitem, QualityItem};
use super::QualityItem;
use crate::http::header;
crate::http::header::common_header! {
@ -34,46 +34,40 @@ crate::http::header::common_header! {
/// # Examples
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{Accept, qitem};
/// use actix_web::http::header::{Accept, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// Accept(vec![
/// qitem(mime::TEXT_HTML),
/// QualityItem::max(mime::TEXT_HTML),
/// ])
/// );
/// ```
///
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{Accept, qitem};
/// use actix_web::http::header::{Accept, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// Accept(vec![
/// qitem(mime::APPLICATION_JSON),
/// QualityItem::max(mime::APPLICATION_JSON),
/// ])
/// );
/// ```
///
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{Accept, QualityItem, q, qitem};
/// use actix_web::http::header::{Accept, QualityItem, q};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// Accept(vec![
/// qitem(mime::TEXT_HTML),
/// qitem("application/xhtml+xml".parse().unwrap()),
/// QualityItem::new(
/// mime::TEXT_XML,
/// q(900)
/// ),
/// qitem("image/webp".parse().unwrap()),
/// QualityItem::new(
/// mime::STAR_STAR,
/// q(800)
/// ),
/// QualityItem::max(mime::TEXT_HTML),
/// QualityItem::max("application/xhtml+xml".parse().unwrap()),
/// QualityItem::new(mime::TEXT_XML, q(0.9)),
/// QualityItem::max("image/webp".parse().unwrap()),
/// QualityItem::new(mime::STAR_STAR, q(0.8)),
/// ])
/// );
/// ```
@ -85,20 +79,20 @@ crate::http::header::common_header! {
test1,
vec![b"audio/*; q=0.2, audio/basic"],
Some(Accept(vec![
QualityItem::new("audio/*".parse().unwrap(), q(200)),
qitem("audio/basic".parse().unwrap()),
QualityItem::new("audio/*".parse().unwrap(), q(0.2)),
QualityItem::max("audio/basic".parse().unwrap()),
])));
crate::http::header::common_header_test!(
test2,
vec![b"text/plain; q=0.5, text/html, text/x-dvi; q=0.8, text/x-c"],
Some(Accept(vec![
QualityItem::new(mime::TEXT_PLAIN, q(500)),
qitem(mime::TEXT_HTML),
QualityItem::new(mime::TEXT_PLAIN, q(0.5)),
QualityItem::max(mime::TEXT_HTML),
QualityItem::new(
"text/x-dvi".parse().unwrap(),
q(800)),
qitem("text/x-c".parse().unwrap()),
q(0.8)),
QualityItem::max("text/x-c".parse().unwrap()),
])));
// Custom tests
@ -106,14 +100,14 @@ crate::http::header::common_header! {
test3,
vec![b"text/plain; charset=utf-8"],
Some(Accept(vec![
qitem(mime::TEXT_PLAIN_UTF_8),
QualityItem::max(mime::TEXT_PLAIN_UTF_8),
])));
crate::http::header::common_header_test!(
test4,
vec![b"text/plain; charset=utf-8; q=0.5"],
Some(Accept(vec![
QualityItem::new(mime::TEXT_PLAIN_UTF_8,
q(500)),
q(0.5)),
])));
#[test]
@ -130,27 +124,27 @@ crate::http::header::common_header! {
impl Accept {
/// Construct `Accept: */*`.
pub fn star() -> Accept {
Accept(vec![qitem(mime::STAR_STAR)])
Accept(vec![QualityItem::max(mime::STAR_STAR)])
}
/// Construct `Accept: application/json`.
pub fn json() -> Accept {
Accept(vec![qitem(mime::APPLICATION_JSON)])
Accept(vec![QualityItem::max(mime::APPLICATION_JSON)])
}
/// Construct `Accept: text/*`.
pub fn text() -> Accept {
Accept(vec![qitem(mime::TEXT_STAR)])
Accept(vec![QualityItem::max(mime::TEXT_STAR)])
}
/// Construct `Accept: image/*`.
pub fn image() -> Accept {
Accept(vec![qitem(mime::IMAGE_STAR)])
Accept(vec![QualityItem::max(mime::IMAGE_STAR)])
}
/// Construct `Accept: text/html`.
pub fn html() -> Accept {
Accept(vec![qitem(mime::TEXT_HTML)])
Accept(vec![QualityItem::max(mime::TEXT_HTML)])
}
/// Returns a sorted list of mime types from highest to lowest preference, accounting for
@ -213,10 +207,10 @@ impl Accept {
///
/// [q-factor weighting]: https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.2
pub fn preference(&self) -> Mime {
use actix_http::header::q;
use actix_http::header::Quality;
let mut max_item = None;
let mut max_pref = q(0);
let mut max_pref = Quality::MIN;
// uses manual max lookup loop since we want the first occurrence in the case of same
// preference but `Iterator::max_by_key` would give us the last occurrence
@ -244,11 +238,11 @@ mod tests {
let test = Accept(vec![]);
assert!(test.ranked().is_empty());
let test = Accept(vec![qitem(mime::APPLICATION_JSON)]);
let test = Accept(vec![QualityItem::max(mime::APPLICATION_JSON)]);
assert_eq!(test.ranked(), vec!(mime::APPLICATION_JSON));
let test = Accept(vec![
qitem(mime::TEXT_HTML),
QualityItem::max(mime::TEXT_HTML),
"application/xhtml+xml".parse().unwrap(),
QualityItem::new("application/xml".parse().unwrap(), q(0.9)),
QualityItem::new(mime::STAR_STAR, q(0.8)),
@ -264,9 +258,9 @@ mod tests {
);
let test = Accept(vec![
qitem(mime::STAR_STAR),
qitem(mime::IMAGE_STAR),
qitem(mime::IMAGE_PNG),
QualityItem::max(mime::STAR_STAR),
QualityItem::max(mime::IMAGE_STAR),
QualityItem::max(mime::IMAGE_PNG),
]);
assert_eq!(
test.ranked(),
@ -277,7 +271,7 @@ mod tests {
#[test]
fn preference_selection() {
let test = Accept(vec![
qitem(mime::TEXT_HTML),
QualityItem::max(mime::TEXT_HTML),
"application/xhtml+xml".parse().unwrap(),
QualityItem::new("application/xml".parse().unwrap(), q(0.9)),
QualityItem::new(mime::STAR_STAR, q(0.8)),
@ -286,9 +280,9 @@ mod tests {
let test = Accept(vec![
QualityItem::new("video/*".parse().unwrap(), q(0.8)),
qitem(mime::IMAGE_PNG),
QualityItem::max(mime::IMAGE_PNG),
QualityItem::new(mime::STAR_STAR, q(0.5)),
qitem(mime::IMAGE_SVG),
QualityItem::max(mime::IMAGE_SVG),
QualityItem::new(mime::IMAGE_STAR, q(0.8)),
]);
assert_eq!(test.preference(), mime::IMAGE_PNG);

12
src/http/header/accept_charset.rs
View file

@ -22,11 +22,11 @@ crate::http::header::common_header! {
/// # Examples
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{AcceptCharset, Charset, qitem};
/// use actix_web::http::header::{AcceptCharset, Charset, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptCharset(vec![qitem(Charset::Us_Ascii)])
/// AcceptCharset(vec![QualityItem::max(Charset::Us_Ascii)])
/// );
/// ```
///
@ -37,19 +37,19 @@ crate::http::header::common_header! {
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptCharset(vec![
/// QualityItem::new(Charset::Us_Ascii, q(900)),
/// QualityItem::new(Charset::Iso_8859_10, q(200)),
/// QualityItem::new(Charset::Us_Ascii, q(0.9)),
/// QualityItem::new(Charset::Iso_8859_10, q(0.2)),
/// ])
/// );
/// ```
///
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{AcceptCharset, Charset, qitem};
/// use actix_web::http::header::{AcceptCharset, Charset, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptCharset(vec![qitem(Charset::Ext("utf-8".to_owned()))])
/// AcceptCharset(vec![QualityItem::max(Charset::Ext("utf-8".to_owned()))])
/// );
/// ```
(AcceptCharset, ACCEPT_CHARSET) => (QualityItem<Charset>)+

24
src/http/header/accept_encoding.rs
View file

@ -29,36 +29,38 @@ common_header! {
/// # Examples
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{AcceptEncoding, Encoding, qitem};
/// use actix_web::http::header::{AcceptEncoding, Encoding, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptEncoding(vec![qitem(Encoding::Chunked)])
/// AcceptEncoding(vec![QualityItem::max(Encoding::Chunked)])
/// );
/// ```
///
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{AcceptEncoding, Encoding, qitem};
/// use actix_web::http::header::{AcceptEncoding, Encoding, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptEncoding(vec![
/// qitem(Encoding::Chunked),
/// qitem(Encoding::Gzip),
/// qitem(Encoding::Deflate),
/// QualityItem::max(Encoding::Chunked),
/// QualityItem::max(Encoding::Gzip),
/// QualityItem::max(Encoding::Deflate),
/// ])
/// );
/// ```
///
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{AcceptEncoding, Encoding, QualityItem, q, qitem};
/// use actix_web::http::header::{AcceptEncoding, Encoding, QualityItem, q};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptEncoding(vec![
/// qitem(Encoding::Chunked),
/// QualityItem::new(Encoding::Gzip, q(600)),
/// QualityItem::new(Encoding::EncodingExt("*".to_owned()), q(0)),
/// QualityItem::max(Encoding::Chunked),
/// QualityItem::new(Encoding::Gzip, q(0.60)),
/// QualityItem::min(Encoding::EncodingExt("*".to_owned())),
/// ])
/// );
/// ```
@ -77,3 +79,5 @@ common_header! {
common_header_test!(test5, vec![b"gzip, identity; q=0.5, *;q=0"]);
}
}
// TODO: shortcut for EncodingExt(*) = Any

76
src/http/header/accept_language.rs
View file

@ -1,6 +1,6 @@
use language_tags::LanguageTag;
use super::{common_header, Preference, QualityItem};
use super::{common_header, Preference, Quality, QualityItem};
use crate::http::header;
common_header! {
@ -32,26 +32,26 @@ common_header! {
/// # Examples
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{AcceptLanguage, qitem};
/// use actix_web::http::header::{AcceptLanguage, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptLanguage(vec![
/// qitem("en-US".parse().unwrap())
/// QualityItem::max("en-US".parse().unwrap())
/// ])
/// );
/// ```
///
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{AcceptLanguage, QualityItem, q, qitem};
/// use actix_web::http::header::{AcceptLanguage, QualityItem, q};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// AcceptLanguage(vec![
/// qitem("da".parse().unwrap()),
/// QualityItem::new("en-GB".parse().unwrap(), q(800)),
/// QualityItem::new("en".parse().unwrap(), q(700)),
/// QualityItem::max("da".parse().unwrap()),
/// QualityItem::new("en-GB".parse().unwrap(), q(0.8)),
/// QualityItem::new("en".parse().unwrap(), q(0.7)),
/// ])
/// );
/// ```
@ -72,9 +72,9 @@ common_header! {
not_ordered_by_weight,
vec![b"en-US, en; q=0.5, fr"],
Some(AcceptLanguage(vec![
qitem("en-US".parse().unwrap()),
QualityItem::new("en".parse().unwrap(), q(500)),
qitem("fr".parse().unwrap()),
QualityItem::max("en-US".parse().unwrap()),
QualityItem::new("en".parse().unwrap(), q(0.5)),
QualityItem::max("fr".parse().unwrap()),
]))
);
@ -82,11 +82,11 @@ common_header! {
has_wildcard,
vec![b"fr-CH, fr; q=0.9, en; q=0.8, de; q=0.7, *; q=0.5"],
Some(AcceptLanguage(vec![
qitem("fr-CH".parse().unwrap()),
QualityItem::new("fr".parse().unwrap(), q(900)),
QualityItem::new("en".parse().unwrap(), q(800)),
QualityItem::new("de".parse().unwrap(), q(700)),
QualityItem::new("*".parse().unwrap(), q(500)),
QualityItem::max("fr-CH".parse().unwrap()),
QualityItem::new("fr".parse().unwrap(), q(0.9)),
QualityItem::new("en".parse().unwrap(), q(0.8)),
QualityItem::new("de".parse().unwrap(), q(0.7)),
QualityItem::new("*".parse().unwrap(), q(0.5)),
]))
);
}
@ -122,10 +122,8 @@ impl AcceptLanguage {
///
/// [q-factor weighting]: https://datatracker.ietf.org/doc/html/rfc7231#section-5.3.2
pub fn preference(&self) -> Preference<LanguageTag> {
use actix_http::header::q;
let mut max_item = None;
let mut max_pref = q(0);
let mut max_pref = Quality::MIN;
// uses manual max lookup loop since we want the first occurrence in the case of same
// preference but `Iterator::max_by_key` would give us the last occurrence
@ -153,15 +151,15 @@ mod tests {
let test = AcceptLanguage(vec![]);
assert!(test.ranked().is_empty());
let test = AcceptLanguage(vec![qitem("fr-CH".parse().unwrap())]);
let test = AcceptLanguage(vec![QualityItem::max("fr-CH".parse().unwrap())]);
assert_eq!(test.ranked(), vec!("fr-CH".parse().unwrap()));
let test = AcceptLanguage(vec![
QualityItem::new("fr".parse().unwrap(), q(900)),
QualityItem::new("fr-CH".parse().unwrap(), q(1000)),
QualityItem::new("en".parse().unwrap(), q(800)),
QualityItem::new("*".parse().unwrap(), q(500)),
QualityItem::new("de".parse().unwrap(), q(700)),
QualityItem::new("fr".parse().unwrap(), q(0.900)),
QualityItem::new("fr-CH".parse().unwrap(), q(1.0)),
QualityItem::new("en".parse().unwrap(), q(0.800)),
QualityItem::new("*".parse().unwrap(), q(0.500)),
QualityItem::new("de".parse().unwrap(), q(0.700)),
]);
assert_eq!(
test.ranked(),
@ -175,11 +173,11 @@ mod tests {
);
let test = AcceptLanguage(vec![
qitem("fr".parse().unwrap()),
qitem("fr-CH".parse().unwrap()),
qitem("en".parse().unwrap()),
qitem("*".parse().unwrap()),
qitem("de".parse().unwrap()),
QualityItem::max("fr".parse().unwrap()),
QualityItem::max("fr-CH".parse().unwrap()),
QualityItem::max("en".parse().unwrap()),
QualityItem::max("*".parse().unwrap()),
QualityItem::max("de".parse().unwrap()),
]);
assert_eq!(
test.ranked(),
@ -196,11 +194,11 @@ mod tests {
#[test]
fn preference_selection() {
let test = AcceptLanguage(vec![
QualityItem::new("fr".parse().unwrap(), q(900)),
QualityItem::new("fr-CH".parse().unwrap(), q(1000)),
QualityItem::new("en".parse().unwrap(), q(800)),
QualityItem::new("*".parse().unwrap(), q(500)),
QualityItem::new("de".parse().unwrap(), q(700)),
QualityItem::new("fr".parse().unwrap(), q(0.900)),
QualityItem::new("fr-CH".parse().unwrap(), q(1.0)),
QualityItem::new("en".parse().unwrap(), q(0.800)),
QualityItem::new("*".parse().unwrap(), q(0.500)),
QualityItem::new("de".parse().unwrap(), q(0.700)),
]);
assert_eq!(
test.preference(),
@ -208,11 +206,11 @@ mod tests {
);
let test = AcceptLanguage(vec![
qitem("fr".parse().unwrap()),
qitem("fr-CH".parse().unwrap()),
qitem("en".parse().unwrap()),
qitem("*".parse().unwrap()),
qitem("de".parse().unwrap()),
QualityItem::max("fr".parse().unwrap()),
QualityItem::max("fr-CH".parse().unwrap()),
QualityItem::max("en".parse().unwrap()),
QualityItem::max("*".parse().unwrap()),
QualityItem::max("de".parse().unwrap()),
]);
assert_eq!(
test.preference(),

10
src/http/header/content_language.rs
View file

@ -23,25 +23,25 @@ common_header! {
/// # Examples
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{ContentLanguage, LanguageTag, qitem};
/// use actix_web::http::header::{ContentLanguage, LanguageTag, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// ContentLanguage(vec![
/// qitem(LanguageTag::parse("en").unwrap()),
/// QualityItem::max(LanguageTag::parse("en").unwrap()),
/// ])
/// );
/// ```
///
/// ```
/// use actix_web::HttpResponse;
/// use actix_web::http::header::{ContentLanguage, LanguageTag, qitem};
/// use actix_web::http::header::{ContentLanguage, LanguageTag, QualityItem};
///
/// let mut builder = HttpResponse::Ok();
/// builder.insert_header(
/// ContentLanguage(vec![
/// qitem(LanguageTag::parse("da").unwrap()),
/// qitem(LanguageTag::parse("en-GB").unwrap()),
/// QualityItem::max(LanguageTag::parse("da").unwrap()),
/// QualityItem::max(LanguageTag::parse("en-GB").unwrap()),
/// ])
/// );
/// ```