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use header::{Header, Host, HeaderFormat};
use std::fmt;
use std::str::FromStr;
use header::parsing::from_one_raw_str;
/// The `Origin` header.
///
/// The `Origin` header is a version of the `Referer` header that is used for all HTTP fetches and `POST`s whose CORS flag is set.
/// This header is often used to inform recipients of the security context of where the request was initiated.
///
///
/// Following the spec, https://fetch.spec.whatwg.org/#origin-header, the value of this header is composed of
/// a String (scheme), header::Host (host/port)
///
/// # Examples
/// ```
/// use hyper::header::{Headers, Origin};
///
/// let mut headers = Headers::new();
/// headers.set(
/// Origin::new("http", "hyper.rs", None)
/// );
/// ```
/// ```
/// use hyper::header::{Headers, Origin};
///
/// let mut headers = Headers::new();
/// headers.set(
/// Origin::new("https", "wikipedia.org", Some(443))
/// );
/// ```
#[derive(Clone, Debug)]
pub struct Origin {
/// The scheme, such as http or https
pub scheme: String,
/// The host, such as Host{hostname: "hyper.rs".to_owned(), port: None}
pub host: Host,
}
impl Origin {
/// Creates a new `Origin` header.
pub fn new<S: Into<String>, H: Into<String>>(scheme: S, hostname: H, port: Option<u16>) -> Origin{
Origin {
scheme: scheme.into(),
host: Host {
hostname: hostname.into(),
port: port
}
}
}
}
impl Header for Origin {
fn header_name() -> &'static str {
static NAME: &'static str = "Origin";
NAME
}
fn parse_header(raw: &[Vec<u8>]) -> ::Result<Origin> {
from_one_raw_str(raw)
}
}
impl FromStr for Origin {
type Err = ::Error;
fn from_str(s: &str) -> ::Result<Origin> {
let idx = match s.find("://") {
Some(idx) => idx,
None => return Err(::Error::Header)
};
// idx + 3 because thats how long "://" is
let (scheme, etc) = (&s[..idx], &s[idx + 3..]);
let host = try!(Host::from_str(etc));
Ok(Origin{
scheme: scheme.to_owned(),
host: host
})
}
}
impl HeaderFormat for Origin {
fn fmt_header(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}://{}", self.scheme, self.host)
}
}
impl PartialEq for Origin {
fn eq(&self, other: &Origin) -> bool {
self.scheme == other.scheme && self.host == other.host
}
}
#[cfg(test)]
mod tests {
use super::Origin;
use header::Header;
#[test]
fn test_origin() {
let origin = Header::parse_header([b"http://foo.com".to_vec()].as_ref());
assert_eq!(origin.ok(), Some(Origin::new("http", "foo.com", None)));
let origin = Header::parse_header([b"https://foo.com:443".to_vec()].as_ref());
assert_eq!(origin.ok(), Some(Origin::new("https", "foo.com", Some(443))));
}
}
bench_header!(bench, Origin, { vec![b"https://foo.com".to_vec()] });