diff options
Diffstat (limited to 'third_party/rust/mime')
| -rw-r--r-- | third_party/rust/mime/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | third_party/rust/mime/CONTRIBUTING.md | 12 | ||||
| -rw-r--r-- | third_party/rust/mime/Cargo.toml | 23 | ||||
| -rw-r--r-- | third_party/rust/mime/LICENSE-APACHE | 201 | ||||
| -rw-r--r-- | third_party/rust/mime/LICENSE-MIT | 20 | ||||
| -rw-r--r-- | third_party/rust/mime/README.md | 31 | ||||
| -rw-r--r-- | third_party/rust/mime/benches/cmp.rs | 46 | ||||
| -rw-r--r-- | third_party/rust/mime/benches/fmt.rs | 19 | ||||
| -rw-r--r-- | third_party/rust/mime/benches/parse.rs | 29 | ||||
| -rw-r--r-- | third_party/rust/mime/src/lib.rs | 937 | ||||
| -rw-r--r-- | third_party/rust/mime/src/parse.rs | 363 |
11 files changed, 1682 insertions, 0 deletions
diff --git a/third_party/rust/mime/.cargo-checksum.json b/third_party/rust/mime/.cargo-checksum.json new file mode 100644 index 0000000000..220a471312 --- /dev/null +++ b/third_party/rust/mime/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"CONTRIBUTING.md":"7a8f1d12eb98bd09c290d31f25b03c71ff78027d9fc468e8782efa7dd3e69f1c","Cargo.toml":"75e36b40187c8edad0baae326a0903b6b462f1acd0d68102a8e4f006b8802041","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"df9cfd06d8a44d9a671eadd39ffd97f166481da015a30f45dfd27886209c5922","README.md":"4ac32f1d6d7e1ac9f89f0a6d7d0cbc26f20ef9defdc7b206ef3a77616f493bbf","benches/cmp.rs":"9deb7c222eb69e7c5160aa82d361d4883792be3b557fbf8f7c807b398ba951a1","benches/fmt.rs":"46ec1e7c7970a3eed84b303309a2395ac16d16534ea691db7f361d0016ef0673","benches/parse.rs":"af2b35fc314e39c7fb3fbe6a77b65e54d0f4bd8956950330700028a98513b7d8","src/lib.rs":"c848e55a49ae4ed6451e94c8c120451b5031ba2ab87170ed389eeb4731679446","src/parse.rs":"cfe11f611901a581245b091942bb28ef2eec57645b981e1699d247f11c9e6fe3"},"package":"2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"}
\ No newline at end of file diff --git a/third_party/rust/mime/CONTRIBUTING.md b/third_party/rust/mime/CONTRIBUTING.md new file mode 100644 index 0000000000..3fbc3a3123 --- /dev/null +++ b/third_party/rust/mime/CONTRIBUTING.md @@ -0,0 +1,12 @@ +# Contributing to mime + +## License + +Licensed under either of + +- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://apache.org/licenses/LICENSE-2.0) +- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) + +### Contribution + +Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. diff --git a/third_party/rust/mime/Cargo.toml b/third_party/rust/mime/Cargo.toml new file mode 100644 index 0000000000..1f34190e7e --- /dev/null +++ b/third_party/rust/mime/Cargo.toml @@ -0,0 +1,23 @@ +# 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 = "mime" +version = "0.3.16" +authors = ["Sean McArthur <sean@seanmonstar.com>"] +description = "Strongly Typed Mimes" +documentation = "https://docs.rs/mime" +keywords = ["mime", "media-extensions", "media-types"] +license = "MIT/Apache-2.0" +repository = "https://github.com/hyperium/mime" + +[dependencies] diff --git a/third_party/rust/mime/LICENSE-APACHE b/third_party/rust/mime/LICENSE-APACHE new file mode 100644 index 0000000000..16fe87b06e --- /dev/null +++ b/third_party/rust/mime/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/mime/README.md b/third_party/rust/mime/README.md new file mode 100644 index 0000000000..dba6314078 --- /dev/null +++ b/third_party/rust/mime/README.md @@ -0,0 +1,31 @@ +# mime + +[](https://travis-ci.org/hyperium/mime) +[](https://crates.io/crates/mime) +[](https://docs.rs/mime) + +Support MIME (Media Types) as strong types in Rust. + +[Documentation](https://docs.rs/mime) + +## Usage + +```rust +extern crate mime; + +// common types are constants +let text = mime::TEXT_PLAIN; + +// deconstruct Mimes to match on them +match (text.type_(), text.subtype()) { + (mime::TEXT, mime::PLAIN) => { + // plain text! + }, + (mime::TEXT, _) => { + // structured text! + }, + _ => { + // not text! + } +} +``` diff --git a/third_party/rust/mime/benches/cmp.rs b/third_party/rust/mime/benches/cmp.rs new file mode 100644 index 0000000000..b7c64f64f6 --- /dev/null +++ b/third_party/rust/mime/benches/cmp.rs @@ -0,0 +1,46 @@ +#![feature(test)] + +extern crate mime; +extern crate test; + +use mime::*; +use test::Bencher; + +#[bench] +fn bench_eq_parsed(b: &mut Bencher) { + let mime = "text/plain; charset=utf-8".parse::<Mime>().unwrap(); + b.bytes = mime.as_ref().len() as u64; + b.iter(|| { + assert_eq!(mime, TEXT_PLAIN_UTF_8); + }) +} + +#[bench] +fn bench_eq_consts(b: &mut Bencher) { + let mime = TEXT_PLAIN_UTF_8; + b.bytes = mime.as_ref().len() as u64; + b.iter(|| { + assert_eq!(mime, TEXT_PLAIN_UTF_8); + }); +} + + +#[bench] +fn bench_ne_consts(b: &mut Bencher) { + let one = TEXT_XML; + let two = TEXT_CSS; + b.bytes = one.as_ref().len() as u64; + b.iter(|| { + assert_ne!(one, two); + }); +} + +#[bench] +fn bench_eq_type_(b: &mut Bencher) { + let mime = TEXT_PLAIN_UTF_8; + let name = TEXT; + b.bytes = name.as_ref().len() as u64; + b.iter(|| { + assert_eq!(mime.type_(), name); + }); +} diff --git a/third_party/rust/mime/benches/fmt.rs b/third_party/rust/mime/benches/fmt.rs new file mode 100644 index 0000000000..106de1a1e6 --- /dev/null +++ b/third_party/rust/mime/benches/fmt.rs @@ -0,0 +1,19 @@ +#![feature(test)] + +extern crate mime; +extern crate test; + +use test::Bencher; + +#[bench] +fn bench_fmt(b: &mut Bencher) { + use std::fmt::Write; + let mime = ::mime::TEXT_PLAIN_UTF_8; + b.bytes = mime.to_string().as_bytes().len() as u64; + let mut s = String::with_capacity(64); + b.iter(|| { + let _ = write!(s, "{}", mime); + ::test::black_box(&s); + unsafe { s.as_mut_vec().set_len(0); } + }) +} diff --git a/third_party/rust/mime/benches/parse.rs b/third_party/rust/mime/benches/parse.rs new file mode 100644 index 0000000000..7d47781a0d --- /dev/null +++ b/third_party/rust/mime/benches/parse.rs @@ -0,0 +1,29 @@ +#![feature(test)] + +extern crate mime; +extern crate test; + +use mime::Mime; +use test::Bencher; + + +#[bench] +fn bench_from_str(b: &mut Bencher) { + let s = "text/plain"; + b.bytes = s.as_bytes().len() as u64; + b.iter(|| s.parse::<Mime>()) +} + +#[bench] +fn bench_from_str_charset_utf8(b: &mut Bencher) { + let s = "text/plain; charset=utf-8"; + b.bytes = s.as_bytes().len() as u64; + b.iter(|| s.parse::<Mime>()) +} + +#[bench] +fn bench_from_str_extended(b: &mut Bencher) { + let s = "text/plain; charset=utf-8; foo=bar"; + b.bytes = s.as_bytes().len() as u64; + b.iter(|| s.parse::<Mime>()) +} diff --git a/third_party/rust/mime/src/lib.rs b/third_party/rust/mime/src/lib.rs new file mode 100644 index 0000000000..1f24fb1cf0 --- /dev/null +++ b/third_party/rust/mime/src/lib.rs @@ -0,0 +1,937 @@ +//! # Mime +//! +//! Mime is now Media Type, technically, but `Mime` is more immediately +//! understandable, so the main type here is `Mime`. +//! +//! ## What is Mime? +//! +//! Example mime string: `text/plain` +//! +//! ``` +//! let plain_text: mime::Mime = "text/plain".parse().unwrap(); +//! assert_eq!(plain_text, mime::TEXT_PLAIN); +//! ``` +//! +//! ## Inspecting Mimes +//! +//! ``` +//! let mime = mime::TEXT_PLAIN; +//! match (mime.type_(), mime.subtype()) { +//! (mime::TEXT, mime::PLAIN) => println!("plain text!"), +//! (mime::TEXT, _) => println!("structured text"), +//! _ => println!("not text"), +//! } +//! ``` + +#![doc(html_root_url = "https://docs.rs/mime/0.3.16")] +#![deny(warnings)] +#![deny(missing_docs)] +#![deny(missing_debug_implementations)] + + +use std::cmp::Ordering; +use std::error::Error; +use std::fmt; +use std::hash::{Hash, Hasher}; +use std::str::FromStr; +use std::slice; + +mod parse; + +/// A parsed mime or media type. +#[derive(Clone)] +pub struct Mime { + source: Source, + slash: usize, + plus: Option<usize>, + params: ParamSource, +} + +/// A section of a `Mime`. +/// +/// For instance, for the Mime `image/svg+xml`, it contains 3 `Name`s, +/// `image`, `svg`, and `xml`. +/// +/// In most cases, `Name`s are compared ignoring case. +#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] +pub struct Name<'a> { + // TODO: optimize with an Atom-like thing + // There a `const` Names, and so it is possible for the statis strings + // to havea different memory address. Additionally, when used in match + // statements, the strings are compared with a memcmp, possibly even + // if the address and length are the same. + // + // Being an enum with an Atom variant that is a usize (and without a + // string pointer and boolean) would allow for faster comparisons. + source: &'a str, + insensitive: bool, +} + +/// An error when parsing a `Mime` from a string. +#[derive(Debug)] +pub struct FromStrError { + inner: parse::ParseError, +} + +impl FromStrError { + fn s(&self) -> &str { + "mime parse error" + } +} + +impl fmt::Display for FromStrError { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + write!(f, "{}: {}", self.s(), self.inner) + } +} + +impl Error for FromStrError { + // Minimum Rust is 1.15, Error::description was still required then + #[allow(deprecated)] + fn description(&self) -> &str { + self.s() + } +} + +#[derive(Clone)] +enum Source { + Atom(u8, &'static str), + Dynamic(String), +} + +impl Source { + fn as_ref(&self) -> &str { + match *self { + Source::Atom(_, s) => s, + Source::Dynamic(ref s) => s, + } + } +} + +#[derive(Clone)] +enum ParamSource { + Utf8(usize), + Custom(usize, Vec<(Indexed, Indexed)>), + None, +} + +#[derive(Clone, Copy)] +struct Indexed(usize, usize); + +impl Mime { + /// Get the top level media type for this `Mime`. + /// + /// # Example + /// + /// ``` + /// let mime = mime::TEXT_PLAIN; + /// assert_eq!(mime.type_(), "text"); + /// assert_eq!(mime.type_(), mime::TEXT); + /// ``` + #[inline] + pub fn type_(&self) -> Name { + Name { + source: &self.source.as_ref()[..self.slash], + insensitive: true, + } + } + + /// Get the subtype of this `Mime`. + /// + /// # Example + /// + /// ``` + /// let mime = mime::TEXT_PLAIN; + /// assert_eq!(mime.subtype(), "plain"); + /// assert_eq!(mime.subtype(), mime::PLAIN); + /// ``` + #[inline] + pub fn subtype(&self) -> Name { + let end = self.plus.unwrap_or_else(|| { + return self.semicolon().unwrap_or(self.source.as_ref().len()) + }); + Name { + source: &self.source.as_ref()[self.slash + 1..end], + insensitive: true, + } + } + + /// Get an optional +suffix for this `Mime`. + /// + /// # Example + /// + /// ``` + /// let svg = "image/svg+xml".parse::<mime::Mime>().unwrap(); + /// assert_eq!(svg.suffix(), Some(mime::XML)); + /// assert_eq!(svg.suffix().unwrap(), "xml"); + /// + /// + /// assert!(mime::TEXT_PLAIN.suffix().is_none()); + /// ``` + #[inline] + pub fn suffix(&self) -> Option<Name> { + let end = self.semicolon().unwrap_or(self.source.as_ref().len()); + self.plus.map(|idx| Name { + source: &self.source.as_ref()[idx + 1..end], + insensitive: true, + }) + } + + /// Look up a parameter by name. + /// + /// # Example + /// + /// ``` + /// let mime = mime::TEXT_PLAIN_UTF_8; + /// assert_eq!(mime.get_param(mime::CHARSET), Some(mime::UTF_8)); + /// assert_eq!(mime.get_param("charset").unwrap(), "utf-8"); + /// assert!(mime.get_param("boundary").is_none()); + /// + /// let mime = "multipart/form-data; boundary=ABCDEFG".parse::<mime::Mime>().unwrap(); + /// assert_eq!(mime.get_param(mime::BOUNDARY).unwrap(), "ABCDEFG"); + /// ``` + pub fn get_param<'a, N>(&'a self, attr: N) -> Option<Name<'a>> + where N: PartialEq<Name<'a>> { + self.params().find(|e| attr == e.0).map(|e| e.1) + } + + /// Returns an iterator over the parameters. + #[inline] + pub fn params<'a>(&'a self) -> Params<'a> { + let inner = match self.params { + ParamSource::Utf8(_) => ParamsInner::Utf8, + ParamSource::Custom(_, ref params) => { + ParamsInner::Custom { + source: &self.source, + params: params.iter(), + } + } + ParamSource::None => ParamsInner::None, + }; + + Params(inner) + } + + /// Return a `&str` of the Mime's ["essence"][essence]. + /// + /// [essence]: https://mimesniff.spec.whatwg.org/#mime-type-essence + pub fn essence_str(&self) -> &str { + let end = self.semicolon().unwrap_or(self.source.as_ref().len()); + + &self.source.as_ref()[..end] + } + + #[cfg(test)] + fn has_params(&self) -> bool { + match self.params { + ParamSource::None => false, + _ => true, + } + } + + #[inline] + fn semicolon(&self) -> Option<usize> { + match self.params { + ParamSource::Utf8(i) | + ParamSource::Custom(i, _) => Some(i), + ParamSource::None => None, + } + } + + fn atom(&self) -> u8 { + match self.source { + Source::Atom(a, _) => a, + _ => 0, + } + } +} + +// Mime ============ + +fn eq_ascii(a: &str, b: &str) -> bool { + // str::eq_ignore_ascii_case didn't stabilize until Rust 1.23. + // So while our MSRV is 1.15, gotta import this trait. + #[allow(deprecated, unused)] + use std::ascii::AsciiExt; + + a.eq_ignore_ascii_case(b) +} + +fn mime_eq_str(mime: &Mime, s: &str) -> bool { + if let ParamSource::Utf8(semicolon) = mime.params { + if mime.source.as_ref().len() == s.len() { + eq_ascii(mime.source.as_ref(), s) + } else { + params_eq(semicolon, mime.source.as_ref(), s) + } + } else if let Some(semicolon) = mime.semicolon() { + params_eq(semicolon, mime.source.as_ref(), s) + } else { + eq_ascii(mime.source.as_ref(), s) + } +} + +fn params_eq(semicolon: usize, a: &str, b: &str) -> bool { + if b.len() < semicolon + 1 { + false + } else if !eq_ascii(&a[..semicolon], &b[..semicolon]) { + false + } else { + // gotta check for quotes, LWS, and for case senstive names + let mut a = &a[semicolon + 1..]; + let mut b = &b[semicolon + 1..]; + let mut sensitive; + + loop { + a = a.trim(); + b = b.trim(); + + match (a.is_empty(), b.is_empty()) { + (true, true) => return true, + (true, false) | + (false, true) => return false, + (false, false) => (), + } + + //name + if let Some(a_idx) = a.find('=') { + let a_name = { + #[allow(deprecated)] + { a[..a_idx].trim_left() } + }; + if let Some(b_idx) = b.find('=') { + let b_name = { + #[allow(deprecated)] + { b[..b_idx].trim_left() } + }; + if !eq_ascii(a_name, b_name) { + return false; + } + sensitive = a_name != CHARSET; + a = &a[..a_idx]; + b = &b[..b_idx]; + } else { + return false; + } + } else { + return false; + } + //value + let a_quoted = if a.as_bytes()[0] == b'"' { + a = &a[1..]; + true + } else { + false + }; + let b_quoted = if b.as_bytes()[0] == b'"' { + b = &b[1..]; + true + } else { + false + }; + + let a_end = if a_quoted { + if let Some(quote) = a.find('"') { + quote + } else { + return false; + } + } else { + a.find(';').unwrap_or(a.len()) + }; + + let b_end = if b_quoted { + if let Some(quote) = b.find('"') { + quote + } else { + return false; + } + } else { + b.find(';').unwrap_or(b.len()) + }; + + if sensitive { + if !eq_ascii(&a[..a_end], &b[..b_end]) { + return false; + } + } else { + if &a[..a_end] != &b[..b_end] { + return false; + } + } + a = &a[a_end..]; + b = &b[b_end..]; + } + } +} + +impl PartialEq for Mime { + #[inline] + fn eq(&self, other: &Mime) -> bool { + match (self.atom(), other.atom()) { + // TODO: + // This could optimize for when there are no customs parameters. + // Any parsed mime has already been lowercased, so if there aren't + // any parameters that are case sensistive, this can skip the + // eq_ascii, and just use a memcmp instead. + (0, _) | + (_, 0) => mime_eq_str(self, other.source.as_ref()), + (a, b) => a == b, + } + } +} + +impl Eq for Mime {} + +impl PartialOrd for Mime { + fn partial_cmp(&self, other: &Mime) -> Option<Ordering> { + Some(self.cmp(other)) + } +} + +impl Ord for Mime { + fn cmp(&self, other: &Mime) -> Ordering { + self.source.as_ref().cmp(other.source.as_ref()) + } +} + +impl Hash for Mime { + fn hash<T: Hasher>(&self, hasher: &mut T) { + hasher.write(self.source.as_ref().as_bytes()); + } +} + +impl<'a> PartialEq<&'a str> for Mime { + #[inline] + fn eq(&self, s: & &'a str) -> bool { + mime_eq_str(self, *s) + } +} + +impl<'a> PartialEq<Mime> for &'a str { + #[inline] + fn eq(&self, mime: &Mime) -> bool { + mime_eq_str(mime, *self) + } +} + +impl FromStr for Mime { + type Err = FromStrError; + + fn from_str(s: &str) -> Result<Mime, Self::Err> { + parse::parse(s).map_err(|e| FromStrError { inner: e }) + } +} + +impl AsRef<str> for Mime { + #[inline] + fn as_ref(&self) -> &str { + self.source.as_ref() + } +} + +impl fmt::Debug for Mime { + #[inline] + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fmt::Debug::fmt(self.source.as_ref(), f) + } +} + +impl fmt::Display for Mime { + #[inline] + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fmt::Display::fmt(self.source.as_ref(), f) + } +} + +// Name ============ + +fn name_eq_str(name: &Name, s: &str) -> bool { + if name.insensitive { + eq_ascii(name.source, s) + } else { + name.source == s + } +} + +impl<'a> Name<'a> { + /// Get the value of this `Name` as a string. + /// + /// Note that the borrow is not tied to `&self` but the `'a` lifetime, allowing the + /// string to outlive `Name`. Alternately, there is an `impl<'a> From<Name<'a>> for &'a str` + /// which isn't rendered by Rustdoc, that can be accessed using `str::from(name)` or `name.into()`. + pub fn as_str(&self) -> &'a str { + self.source + } +} + +impl<'a, 'b> PartialEq<&'b str> for Name<'a> { + #[inline] + fn eq(&self, other: & &'b str) -> bool { + name_eq_str(self, *other) + } +} + +impl<'a, 'b> PartialEq<Name<'a>> for &'b str { + #[inline] + fn eq(&self, other: &Name<'a>) -> bool { + name_eq_str(other, *self) + } +} + +impl<'a> AsRef<str> for Name<'a> { + #[inline] + fn as_ref(&self) -> &str { + self.source + } +} + +impl<'a> From<Name<'a>> for &'a str { + #[inline] + fn from(name: Name<'a>) -> &'a str { + name.source + } +} + +impl<'a> fmt::Debug for Name<'a> { + #[inline] + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fmt::Debug::fmt(self.source, f) + } +} + +impl<'a> fmt::Display for Name<'a> { + #[inline] + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fmt::Display::fmt(self.source, f) + } +} + +// Params =================== + +enum ParamsInner<'a> { + Utf8, + Custom { + source: &'a Source, + params: slice::Iter<'a, (Indexed, Indexed)>, + }, + None, +} + +/// An iterator over the parameters of a MIME. +pub struct Params<'a>(ParamsInner<'a>); + +impl<'a> fmt::Debug for Params<'a> { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + fmt.debug_struct("Params").finish() + } +} + +impl<'a> Iterator for Params<'a> { + type Item = (Name<'a>, Name<'a>); + + #[inline] + fn next(&mut self) -> Option<(Name<'a>, Name<'a>)> { + match self.0 { + ParamsInner::Utf8 => { + let value = (CHARSET, UTF_8); + self.0 = ParamsInner::None; + Some(value) + } + ParamsInner::Custom { source, ref mut params } => { + params.next().map(|&(name, value)| { + let name = Name { + source: &source.as_ref()[name.0..name.1], + insensitive: true, + }; + let value = Name { + source: &source.as_ref()[value.0..value.1], + insensitive: name == CHARSET, + }; + (name, value) + }) + } + ParamsInner::None => None + } + } + + #[inline] + fn size_hint(&self) -> (usize, Option<usize>) { + match self.0 { + ParamsInner::Utf8 => (1, Some(1)), + ParamsInner::Custom { ref params, .. } => params.size_hint(), + ParamsInner::None => (0, Some(0)), + } + } +} + +macro_rules! names { + ($($id:ident, $e:expr;)*) => ( + $( + #[doc = $e] + pub const $id: Name<'static> = Name { + source: $e, + insensitive: true, + }; + )* + + #[test] + fn test_names_macro_consts() { + #[allow(unused, deprecated)] + use std::ascii::AsciiExt; + $( + assert_eq!($id.source.to_ascii_lowercase(), $id.source); + )* + } + ) +} + +names! { + STAR, "*"; + + TEXT, "text"; + IMAGE, "image"; + AUDIO, "audio"; + VIDEO, "video"; + APPLICATION, "application"; + MULTIPART, "multipart"; + MESSAGE, "message"; + MODEL, "model"; + FONT, "font"; + + // common text/ * + PLAIN, "plain"; + HTML, "html"; + XML, "xml"; + JAVASCRIPT, "javascript"; + CSS, "css"; + CSV, "csv"; + EVENT_STREAM, "event-stream"; + VCARD, "vcard"; + + // common application/* + JSON, "json"; + WWW_FORM_URLENCODED, "x-www-form-urlencoded"; + MSGPACK, "msgpack"; + OCTET_STREAM, "octet-stream"; + PDF, "pdf"; + + // common font/* + WOFF, "woff"; + WOFF2, "woff2"; + + // multipart/* + FORM_DATA, "form-data"; + + // common image/* + BMP, "bmp"; + GIF, "gif"; + JPEG, "jpeg"; + PNG, "png"; + SVG, "svg"; + + // audio/* + BASIC, "basic"; + MPEG, "mpeg"; + MP4, "mp4"; + OGG, "ogg"; + + // parameters + CHARSET, "charset"; + BOUNDARY, "boundary"; + UTF_8, "utf-8"; +} + +macro_rules! mimes { + ($($id:ident, $($piece:expr),*;)*) => ( + #[allow(non_camel_case_types)] + enum __Atoms { + __Dynamic, + $( + $id, + )* + } + + $( + mime_constant! { + $id, $($piece),* + } + )* + + #[test] + fn test_mimes_macro_consts() { + let _ = [ + $( + mime_constant_test! { + $id, $($piece),* + } + ),* + ].iter().enumerate().map(|(pos, &atom)| { + assert_eq!(pos + 1, atom as usize, "atom {} in position {}", atom, pos + 1); + }).collect::<Vec<()>>(); + } + ) +} + +macro_rules! mime_constant { + ($id:ident, $src:expr, $slash:expr) => ( + mime_constant!($id, $src, $slash, None); + ); + ($id:ident, $src:expr, $slash:expr, $plus:expr) => ( + mime_constant!(FULL $id, $src, $slash, $plus, ParamSource::None); + ); + + ($id:ident, $src:expr, $slash:expr, $plus:expr, $params:expr) => ( + mime_constant!(FULL $id, $src, $slash, $plus, ParamSource::Utf8($params)); + ); + + + (FULL $id:ident, $src:expr, $slash:expr, $plus:expr, $params:expr) => ( + #[doc = "`"] + #[doc = $src] + #[doc = "`"] + pub const $id: Mime = Mime { + source: Source::Atom(__Atoms::$id as u8, $src), + slash: $slash, + plus: $plus, + params: $params, + }; + ) +} + + +#[cfg(test)] +macro_rules! mime_constant_test { + ($id:ident, $src:expr, $slash:expr) => ( + mime_constant_test!($id, $src, $slash, None); + ); + ($id:ident, $src:expr, $slash:expr, $plus:expr) => ( + mime_constant_test!(FULL $id, $src, $slash, $plus, ParamSource::None); + ); + + ($id:ident, $src:expr, $slash:expr, $plus:expr, $params:expr) => ( + mime_constant_test!(FULL $id, $src, $slash, $plus, ParamSource::Utf8($params)); + ); + + (FULL $id:ident, $src:expr, $slash:expr, $plus:expr, $params:expr) => ({ + let __mime = $id; + let __slash = __mime.as_ref().as_bytes()[$slash]; + assert_eq!(__slash, b'/', "{:?} has {:?} at slash position {:?}", __mime, __slash as char, $slash); + if let Some(plus) = __mime.plus { + let __c = __mime.as_ref().as_bytes()[plus]; + assert_eq!(__c, b'+', "{:?} has {:?} at plus position {:?}", __mime, __c as char, plus); + } else { + assert!(!__mime.as_ref().as_bytes().contains(&b'+'), "{:?} forgot plus", __mime); + } + if let ParamSource::Utf8(semicolon) = __mime.params { + assert_eq!(__mime.as_ref().as_bytes()[semicolon], b';'); + assert_eq!(&__mime.as_ref()[semicolon..], "; charset=utf-8"); + } else if let ParamSource::None = __mime.params { + assert!(!__mime.as_ref().as_bytes().contains(&b';')); + } else { + unreachable!(); + } + __mime.atom() + }) +} + + +mimes! { + STAR_STAR, "*/*", 1; + + TEXT_STAR, "text/*", 4; + TEXT_PLAIN, "text/plain", 4; + TEXT_PLAIN_UTF_8, "text/plain; charset=utf-8", 4, None, 10; + TEXT_HTML, "text/html", 4; + TEXT_HTML_UTF_8, "text/html; charset=utf-8", 4, None, 9; + TEXT_CSS, "text/css", 4; + TEXT_CSS_UTF_8, "text/css; charset=utf-8", 4, None, 8; + TEXT_JAVASCRIPT, "text/javascript", 4; + TEXT_XML, "text/xml", 4; + TEXT_EVENT_STREAM, "text/event-stream", 4; + TEXT_CSV, "text/csv", 4; + TEXT_CSV_UTF_8, "text/csv; charset=utf-8", 4, None, 8; + TEXT_TAB_SEPARATED_VALUES, "text/tab-separated-values", 4; + TEXT_TAB_SEPARATED_VALUES_UTF_8, "text/tab-separated-values; charset=utf-8", 4, None, 25; + TEXT_VCARD, "text/vcard", 4; + + IMAGE_STAR, "image/*", 5; + IMAGE_JPEG, "image/jpeg", 5; + IMAGE_GIF, "image/gif", 5; + IMAGE_PNG, "image/png", 5; + IMAGE_BMP, "image/bmp", 5; + IMAGE_SVG, "image/svg+xml", 5, Some(9); + + FONT_WOFF, "font/woff", 4; + FONT_WOFF2, "font/woff2", 4; + + APPLICATION_JSON, "application/json", 11; + APPLICATION_JAVASCRIPT, "application/javascript", 11; + APPLICATION_JAVASCRIPT_UTF_8, "application/javascript; charset=utf-8", 11, None, 22; + APPLICATION_WWW_FORM_URLENCODED, "application/x-www-form-urlencoded", 11; + APPLICATION_OCTET_STREAM, "application/octet-stream", 11; + APPLICATION_MSGPACK, "application/msgpack", 11; + APPLICATION_PDF, "application/pdf", 11; + + MULTIPART_FORM_DATA, "multipart/form-data", 9; +} + +#[deprecated(since="0.3.1", note="please use `TEXT_JAVASCRIPT` instead")] +#[doc(hidden)] +pub const TEXT_JAVSCRIPT: Mime = TEXT_JAVASCRIPT; + + +#[cfg(test)] +mod tests { + use std::str::FromStr; + use super::*; + + #[test] + fn test_type_() { + assert_eq!(TEXT_PLAIN.type_(), TEXT); + } + + + #[test] + fn test_subtype() { + assert_eq!(TEXT_PLAIN.subtype(), PLAIN); + assert_eq!(TEXT_PLAIN_UTF_8.subtype(), PLAIN); + let mime = Mime::from_str("text/html+xml").unwrap(); + assert_eq!(mime.subtype(), HTML); + } + + #[test] + fn test_matching() { + match (TEXT_PLAIN.type_(), TEXT_PLAIN.subtype()) { + (TEXT, PLAIN) => (), + _ => unreachable!(), + } + } + + #[test] + fn test_suffix() { + assert_eq!(TEXT_PLAIN.suffix(), None); + let mime = Mime::from_str("text/html+xml").unwrap(); + assert_eq!(mime.suffix(), Some(XML)); + } + + #[test] + fn test_mime_fmt() { + let mime = TEXT_PLAIN; + assert_eq!(mime.to_string(), "text/plain"); + let mime = TEXT_PLAIN_UTF_8; + assert_eq!(mime.to_string(), "text/plain; charset=utf-8"); + } + + #[test] + fn test_mime_from_str() { + assert_eq!(Mime::from_str("text/plain").unwrap(), TEXT_PLAIN); + assert_eq!(Mime::from_str("TEXT/PLAIN").unwrap(), TEXT_PLAIN); + assert_eq!(Mime::from_str("text/plain;charset=utf-8").unwrap(), TEXT_PLAIN_UTF_8); + assert_eq!(Mime::from_str("text/plain;charset=\"utf-8\"").unwrap(), TEXT_PLAIN_UTF_8); + + // spaces + assert_eq!(Mime::from_str("text/plain; charset=utf-8").unwrap(), TEXT_PLAIN_UTF_8); + + // quotes + semi colon + Mime::from_str("text/plain;charset=\"utf-8\"; foo=bar").unwrap(); + Mime::from_str("text/plain;charset=\"utf-8\" ; foo=bar").unwrap(); + + let upper = Mime::from_str("TEXT/PLAIN").unwrap(); + assert_eq!(upper, TEXT_PLAIN); + assert_eq!(upper.type_(), TEXT); + assert_eq!(upper.subtype(), PLAIN); + + + let extended = Mime::from_str("TEXT/PLAIN; CHARSET=UTF-8; FOO=BAR").unwrap(); + assert_eq!(extended, "text/plain; charset=utf-8; foo=BAR"); + assert_eq!(extended.get_param("charset").unwrap(), "utf-8"); + assert_eq!(extended.get_param("foo").unwrap(), "BAR"); + + Mime::from_str("multipart/form-data; boundary=--------foobar").unwrap(); + + // stars + assert_eq!("*/*".parse::<Mime>().unwrap(), STAR_STAR); + assert_eq!("image/*".parse::<Mime>().unwrap(), "image/*"); + assert_eq!("text/*; charset=utf-8".parse::<Mime>().unwrap(), "text/*; charset=utf-8"); + + // parse errors + Mime::from_str("f o o / bar").unwrap_err(); + Mime::from_str("text\n/plain").unwrap_err(); + Mime::from_str("text\r/plain").unwrap_err(); + Mime::from_str("text/\r\nplain").unwrap_err(); + Mime::from_str("text/plain;\r\ncharset=utf-8").unwrap_err(); + Mime::from_str("text/plain; charset=\r\nutf-8").unwrap_err(); + Mime::from_str("text/plain; charset=\"\r\nutf-8\"").unwrap_err(); + } + + #[test] + fn test_mime_from_str_empty_parameter_list() { + static CASES: &'static [&'static str] = &[ + "text/event-stream;", + "text/event-stream; ", + "text/event-stream; ", + ]; + + for case in CASES { + let mime = Mime::from_str(case).expect(case); + assert_eq!(mime, TEXT_EVENT_STREAM, "case = {:?}", case); + assert_eq!(mime.type_(), TEXT, "case = {:?}", case); + assert_eq!(mime.subtype(), EVENT_STREAM, "case = {:?}", case); + assert!(!mime.has_params(), "case = {:?}", case); + } + + } + + #[test] + fn test_case_sensitive_values() { + let mime = Mime::from_str("multipart/form-data; charset=BASE64; boundary=ABCDEFG").unwrap(); + assert_eq!(mime.get_param(CHARSET).unwrap(), "bAsE64"); + assert_eq!(mime.get_param(BOUNDARY).unwrap(), "ABCDEFG"); + assert_ne!(mime.get_param(BOUNDARY).unwrap(), "abcdefg"); + } + + #[test] + fn test_get_param() { + assert_eq!(TEXT_PLAIN.get_param("charset"), None); + assert_eq!(TEXT_PLAIN.get_param("baz"), None); + + assert_eq!(TEXT_PLAIN_UTF_8.get_param("charset"), Some(UTF_8)); + assert_eq!(TEXT_PLAIN_UTF_8.get_param("baz"), None); + + let mime = Mime::from_str("text/plain; charset=utf-8; foo=bar").unwrap(); + assert_eq!(mime.get_param(CHARSET).unwrap(), "utf-8"); + assert_eq!(mime.get_param("foo").unwrap(), "bar"); + assert_eq!(mime.get_param("baz"), None); + + + let mime = Mime::from_str("text/plain;charset=\"utf-8\"").unwrap(); + assert_eq!(mime.get_param(CHARSET), Some(UTF_8)); + } + + #[test] + fn test_name_eq() { + assert_eq!(TEXT, TEXT); + assert_eq!(TEXT, "text"); + assert_eq!("text", TEXT); + assert_eq!(TEXT, "TEXT"); + + let param = Name { + source: "ABC", + insensitive: false, + }; + + assert_eq!(param, param); + assert_eq!(param, "ABC"); + assert_eq!("ABC", param); + assert_ne!(param, "abc"); + assert_ne!("abc", param); + } + + #[test] + fn test_essence_str() { + assert_eq!(TEXT_PLAIN.essence_str(), "text/plain"); + assert_eq!(TEXT_PLAIN_UTF_8.essence_str(), "text/plain"); + assert_eq!(IMAGE_SVG.essence_str(), "image/svg+xml"); + } +} diff --git a/third_party/rust/mime/src/parse.rs b/third_party/rust/mime/src/parse.rs new file mode 100644 index 0000000000..d55e5494cb --- /dev/null +++ b/third_party/rust/mime/src/parse.rs @@ -0,0 +1,363 @@ +#[allow(unused, deprecated)] +use std::ascii::AsciiExt; +use std::error::Error; +use std::fmt; +use std::iter::Enumerate; +use std::str::Bytes; + +use super::{Mime, Source, ParamSource, Indexed, CHARSET, UTF_8}; + +#[derive(Debug)] +pub enum ParseError { + MissingSlash, + MissingEqual, + MissingQuote, + InvalidToken { + pos: usize, + byte: u8, + }, +} + +impl ParseError { + fn s(&self) -> &str { + use self::ParseError::*; + + match *self { + MissingSlash => "a slash (/) was missing between the type and subtype", + MissingEqual => "an equals sign (=) was missing between a parameter and its value", + MissingQuote => "a quote (\") was missing from a parameter value", + InvalidToken { .. } => "an invalid token was encountered", + } + } +} + +impl fmt::Display for ParseError { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + if let ParseError::InvalidToken { pos, byte } = *self { + write!(f, "{}, {:X} at position {}", self.s(), byte, pos) + } else { + f.write_str(self.s()) + } + } +} + +impl Error for ParseError { + // Minimum Rust is 1.15, Error::description was still required then + #[allow(deprecated)] + fn description(&self) -> &str { + self.s() + } +} + +pub fn parse(s: &str) -> Result<Mime, ParseError> { + if s == "*/*" { + return Ok(::STAR_STAR); + } + + let mut iter = s.bytes().enumerate(); + // toplevel + let mut start; + let slash; + loop { + match iter.next() { + Some((_, c)) if is_token(c) => (), + Some((i, b'/')) if i > 0 => { + slash = i; + start = i + 1; + break; + }, + None => return Err(ParseError::MissingSlash), // EOF and no toplevel is no Mime + Some((pos, byte)) => return Err(ParseError::InvalidToken { + pos: pos, + byte: byte, + }) + }; + + } + + // sublevel + let mut plus = None; + loop { + match iter.next() { + Some((i, b'+')) if i > start => { + plus = Some(i); + }, + Some((i, b';')) if i > start => { + start = i; + break; + }, + Some((_, c)) if is_token(c) => (), + None => { + return Ok(Mime { + source: Source::Dynamic(s.to_ascii_lowercase()), + slash: slash, + plus: plus, + params: ParamSource::None, + }); + }, + Some((pos, byte)) => return Err(ParseError::InvalidToken { + pos: pos, + byte: byte, + }) + }; + } + + // params + let params = params_from_str(s, &mut iter, start)?; + + let src = match params { + ParamSource::Utf8(_) => s.to_ascii_lowercase(), + ParamSource::Custom(semicolon, ref indices) => lower_ascii_with_params(s, semicolon, indices), + ParamSource::None => { + // Chop off the empty list + s[..start].to_ascii_lowercase() + } + }; + + Ok(Mime { + source: Source::Dynamic(src), + slash: slash, + plus: plus, + params: params, + }) +} + + +fn params_from_str(s: &str, iter: &mut Enumerate<Bytes>, mut start: usize) -> Result<ParamSource, ParseError> { + let semicolon = start; + start += 1; + let mut params = ParamSource::None; + 'params: while start < s.len() { + let name; + // name + 'name: loop { + match iter.next() { + Some((i, b' ')) if i == start => { + start = i + 1; + continue 'params; + }, + Some((_, c)) if is_token(c) => (), + Some((i, b'=')) if i > start => { + name = Indexed(start, i); + start = i + 1; + break 'name; + }, + None => return Err(ParseError::MissingEqual), + Some((pos, byte)) => return Err(ParseError::InvalidToken { + pos: pos, + byte: byte, + }), + } + } + + let value; + // values must be restrict-name-char or "anything goes" + let mut is_quoted = false; + + 'value: loop { + if is_quoted { + match iter.next() { + Some((i, b'"')) if i > start => { + value = Indexed(start, i); + break 'value; + }, + Some((_, c)) if is_restricted_quoted_char(c) => (), + None => return Err(ParseError::MissingQuote), + Some((pos, byte)) => return Err(ParseError::InvalidToken { + pos: pos, + byte: byte, + }), + } + } else { + match iter.next() { + Some((i, b'"')) if i == start => { + is_quoted = true; + start = i + 1; + }, + Some((_, c)) if is_token(c) => (), + Some((i, b';')) if i > start => { + value = Indexed(start, i); + start = i + 1; + break 'value; + } + None => { + value = Indexed(start, s.len()); + start = s.len(); + break 'value; + }, + + Some((pos, byte)) => return Err(ParseError::InvalidToken { + pos: pos, + byte: byte, + }), + } + } + } + + if is_quoted { + 'ws: loop { + match iter.next() { + Some((i, b';')) => { + // next param + start = i + 1; + break 'ws; + }, + Some((_, b' ')) => { + // skip whitespace + }, + None => { + // eof + start = s.len(); + break 'ws; + }, + Some((pos, byte)) => return Err(ParseError::InvalidToken { + pos: pos, + byte: byte, + }), + } + } + } + + match params { + ParamSource::Utf8(i) => { + let i = i + 2; + let charset = Indexed(i, "charset".len() + i); + let utf8 = Indexed(charset.1 + 1, charset.1 + "utf-8".len() + 1); + params = ParamSource::Custom(semicolon, vec![ + (charset, utf8), + (name, value), + ]); + }, + ParamSource::Custom(_, ref mut vec) => { + vec.push((name, value)); + }, + ParamSource::None => { + if semicolon + 2 == name.0 && CHARSET == &s[name.0..name.1] { + if UTF_8 == &s[value.0..value.1] { + params = ParamSource::Utf8(semicolon); + continue 'params; + } + } + params = ParamSource::Custom(semicolon, vec![(name, value)]); + }, + } + } + Ok(params) +} + +fn lower_ascii_with_params(s: &str, semi: usize, params: &[(Indexed, Indexed)]) -> String { + let mut owned = s.to_owned(); + owned[..semi].make_ascii_lowercase(); + + for &(ref name, ref value) in params { + owned[name.0..name.1].make_ascii_lowercase(); + // Since we just converted this part of the string to lowercase, + // we can skip the `Name == &str` unicase check and do a faster + // memcmp instead. + if &owned[name.0..name.1] == CHARSET.source { + owned[value.0..value.1].make_ascii_lowercase(); + } + } + + owned +} + +// From [RFC6838](http://tools.ietf.org/html/rfc6838#section-4.2): +// +// > All registered media types MUST be assigned top-level type and +// > subtype names. The combination of these names serves to uniquely +// > identify the media type, and the subtype name facet (or the absence +// > of one) identifies the registration tree. Both top-level type and +// > subtype names are case-insensitive. +// > +// > Type and subtype names MUST conform to the following ABNF: +// > +// > type-name = restricted-name +// > subtype-name = restricted-name +// > +// > restricted-name = restricted-name-first *126restricted-name-chars +// > restricted-name-first = ALPHA / DIGIT +// > restricted-name-chars = ALPHA / DIGIT / "!" / "#" / +// > "$" / "&" / "-" / "^" / "_" +// > restricted-name-chars =/ "." ; Characters before first dot always +// > ; specify a facet name +// > restricted-name-chars =/ "+" ; Characters after last plus always +// > ; specify a structured syntax suffix + +// However, [HTTP](https://tools.ietf.org/html/rfc7231#section-3.1.1.1): +// +// > media-type = type "/" subtype *( OWS ";" OWS parameter ) +// > type = token +// > subtype = token +// > parameter = token "=" ( token / quoted-string ) +// +// Where token is defined as: +// +// > token = 1*tchar +// > tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "." / +// > "^" / "_" / "`" / "|" / "~" / DIGIT / ALPHA +// +// So, clearly, ¯\_(Ä_/¯ + +macro_rules! byte_map { + ($($flag:expr,)*) => ([ + $($flag != 0,)* + ]) +} + +static TOKEN_MAP: [bool; 256] = byte_map![ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, + 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +]; + +fn is_token(c: u8) -> bool { + TOKEN_MAP[c as usize] +} + +fn is_restricted_quoted_char(c: u8) -> bool { + c > 31 && c != 127 +} + +#[test] +#[allow(warnings)] // ... ranges deprecated +fn test_lookup_tables() { + for (i, &valid) in TOKEN_MAP.iter().enumerate() { + let i = i as u8; + let should = match i { + b'a'...b'z' | + b'A'...b'Z' | + b'0'...b'9' | + b'!' | + b'#' | + b'$' | + b'%' | + b'&' | + b'\'' | + b'*' | + b'+' | + b'-' | + b'.' | + b'^' | + b'_' | + b'`' | + b'|' | + b'~' => true, + _ => false + }; + assert_eq!(valid, should, "{:?} ({}) should be {}", i as char, i, should); + } +} |