d35992d019
BREAKING CHANGE: This breaks a lot of the Client and Server APIs. Check the documentation for how Handlers can be used for asynchronous events.
97 lines
2.6 KiB
Rust
97 lines
2.6 KiB
Rust
use std::fmt::{self, Display};
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use header::{Header};
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/// The `Access-Control-Allow-Origin` response header,
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/// part of [CORS](http://www.w3.org/TR/cors/#access-control-allow-origin-response-header)
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///
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/// The `Access-Control-Allow-Origin` header indicates whether a resource
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/// can be shared based by returning the value of the Origin request header,
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/// "*", or "null" in the response.
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///
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/// # ABNF
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/// ```plain
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/// Access-Control-Allow-Origin = "Access-Control-Allow-Origin" ":" origin-list-or-null | "*"
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/// ```
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///
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/// # Example values
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/// * `null`
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/// * `*`
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/// * `http://google.com/`
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///
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/// # Examples
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/// ```
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/// use hyper::header::{Headers, AccessControlAllowOrigin};
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///
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/// let mut headers = Headers::new();
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/// headers.set(
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/// AccessControlAllowOrigin::Any
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/// );
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/// ```
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/// ```
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/// use hyper::header::{Headers, AccessControlAllowOrigin};
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///
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/// let mut headers = Headers::new();
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/// headers.set(
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/// AccessControlAllowOrigin::Null,
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/// );
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/// ```
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/// ```
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/// use hyper::header::{Headers, AccessControlAllowOrigin};
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///
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/// let mut headers = Headers::new();
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/// headers.set(
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/// AccessControlAllowOrigin::Value("http://hyper.rs".to_owned())
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/// );
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/// ```
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#[derive(Clone, PartialEq, Debug)]
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pub enum AccessControlAllowOrigin {
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/// Allow all origins
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Any,
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/// A hidden origin
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Null,
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/// Allow one particular origin
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Value(String),
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}
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impl Header for AccessControlAllowOrigin {
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fn header_name() -> &'static str {
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"Access-Control-Allow-Origin"
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}
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fn parse_header(raw: &[Vec<u8>]) -> ::Result<AccessControlAllowOrigin> {
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if raw.len() != 1 {
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return Err(::Error::Header)
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}
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let value = unsafe { raw.get_unchecked(0) };
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Ok(match &value[..] {
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b"*" => AccessControlAllowOrigin::Any,
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b"null" => AccessControlAllowOrigin::Null,
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_ => AccessControlAllowOrigin::Value(try!(String::from_utf8(value.clone())))
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})
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}
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fn fmt_header(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match *self {
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AccessControlAllowOrigin::Any => f.write_str("*"),
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AccessControlAllowOrigin::Null => f.write_str("null"),
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AccessControlAllowOrigin::Value(ref url) => Display::fmt(url, f),
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}
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}
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}
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impl Display for AccessControlAllowOrigin {
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fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
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self.fmt_header(f)
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}
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}
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#[cfg(test)]
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mod test_access_control_allow_orgin {
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use header::*;
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use super::AccessControlAllowOrigin as HeaderField;
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test_header!(test1, vec![b"null"]);
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test_header!(test2, vec![b"*"]);
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test_header!(test3, vec![b"http://google.com/"]);
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}
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