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use std::convert::TryFrom;
use std::fmt;
use http::uri::Authority;
/// The `Host` header.
#[derive(Clone, Debug, PartialEq, Eq, Hash, PartialOrd)]
pub struct Host(Authority);
impl Host {
/// Get the hostname, such as example.domain.
pub fn hostname(&self) -> &str {
self.0.host()
}
/// Get the optional port number.
pub fn port(&self) -> Option<u16> {
self.0.port_u16()
}
}
impl ::Header for Host {
fn name() -> &'static ::HeaderName {
&::http::header::HOST
}
fn decode<'i, I: Iterator<Item = &'i ::HeaderValue>>(values: &mut I) -> Result<Self, ::Error> {
values
.next()
.cloned()
.and_then(|val| Authority::try_from(val.as_bytes()).ok())
.map(Host)
.ok_or_else(::Error::invalid)
}
fn encode<E: Extend<::HeaderValue>>(&self, values: &mut E) {
let bytes = self.0.as_str().as_bytes();
let val = ::HeaderValue::from_bytes(bytes).expect("Authority is a valid HeaderValue");
values.extend(::std::iter::once(val));
}
}
impl From<Authority> for Host {
fn from(auth: Authority) -> Host {
Host(auth)
}
}
impl fmt::Display for Host {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Display::fmt(&self.0, f)
}
}