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use header::{Header, HeaderFormat};
use std::fmt;
use header::parsing::from_one_raw_str;
/// The `Host` header.
///
/// HTTP/1.1 requires that all requests include a `Host` header, and so hyper
/// client requests add one automatically.
///
/// Currently is just a String, but it should probably become a better type,
/// like `url::Host` or something.
///
/// # Examples
/// ```
/// use hyper::header::{Headers, Host};
///
/// let mut headers = Headers::new();
/// headers.set(
/// Host{
/// hostname: "hyper.rs".to_owned(),
/// port: None,
/// }
/// );
/// ```
/// ```
/// use hyper::header::{Headers, Host};
///
/// let mut headers = Headers::new();
/// headers.set(
/// Host{
/// hostname: "hyper.rs".to_owned(),
/// port: Some(8080),
/// }
/// );
/// ```
#[derive(Clone, PartialEq, Debug)]
pub struct Host {
/// The hostname, such a example.domain.
pub hostname: String,
/// An optional port number.
pub port: Option<u16>
}
impl Header for Host {
fn header_name() -> &'static str {
"Host"
}
fn parse_header(raw: &[Vec<u8>]) -> ::Result<Host> {
from_one_raw_str(raw).and_then(|mut s: String| {
// FIXME: use rust-url to parse this
// https://github.com/servo/rust-url/issues/42
let idx = {
let slice = &s[..];
let mut chars = slice.chars();
chars.next();
if chars.next().unwrap() == '[' {
match slice.rfind(']') {
Some(idx) => {
if slice.len() > idx + 2 {
Some(idx + 1)
} else {
None
}
}
None => return Err(::Error::Header) // this is a bad ipv6 address...
}
} else {
slice.rfind(':')
}
};
let port = match idx {
Some(idx) => s[idx + 1..].parse().ok(),
None => None
};
match idx {
Some(idx) => s.truncate(idx),
None => ()
}
Ok(Host {
hostname: s,
port: port
})
})
}
}
impl HeaderFormat for Host {
fn fmt_header(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.port {
None | Some(80) | Some(443) => f.write_str(&self.hostname[..]),
Some(port) => write!(f, "{}:{}", self.hostname, port)
}
}
}
#[cfg(test)]
mod tests {
use super::Host;
use header::Header;
#[test]
fn test_host() {
let host = Header::parse_header([b"foo.com".to_vec()].as_ref());
assert_eq!(host.ok(), Some(Host {
hostname: "foo.com".to_owned(),
port: None
}));
let host = Header::parse_header([b"foo.com:8080".to_vec()].as_ref());
assert_eq!(host.ok(), Some(Host {
hostname: "foo.com".to_owned(),
port: Some(8080)
}));
}
}
bench_header!(bench, Host, { vec![b"foo.com:3000".to_vec()] });