145 lines
3.6 KiB
Rust
145 lines
3.6 KiB
Rust
use header::{Header, Raw};
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use std::fmt;
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use std::str::FromStr;
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use header::parsing::from_one_raw_str;
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use url::idna::domain_to_unicode;
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/// The `Host` header.
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///
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/// HTTP/1.1 requires that all requests include a `Host` header, and so hyper
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/// client requests add one automatically.
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///
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/// Currently is just a String, but it should probably become a better type,
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/// like `url::Host` or something.
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///
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/// # Examples
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/// ```
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/// use hyper::header::{Headers, Host};
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///
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/// let mut headers = Headers::new();
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/// headers.set(
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/// Host{
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/// hostname: "hyper.rs".to_owned(),
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/// port: None,
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/// }
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/// );
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/// ```
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/// ```
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/// use hyper::header::{Headers, Host};
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///
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/// let mut headers = Headers::new();
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/// headers.set(
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/// Host{
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/// hostname: "hyper.rs".to_owned(),
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/// port: Some(8080),
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/// }
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/// );
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/// ```
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#[derive(Clone, PartialEq, Debug)]
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pub struct Host {
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/// The hostname, such a example.domain.
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pub hostname: String,
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/// An optional port number.
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pub port: Option<u16>
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}
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impl Header for Host {
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fn header_name() -> &'static str {
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static NAME: &'static str = "Host";
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NAME
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}
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fn parse_header(raw: &Raw) -> ::Result<Host> {
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from_one_raw_str(raw)
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}
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fn fmt_header(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self.port {
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None | Some(80) | Some(443) => f.write_str(&self.hostname[..]),
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Some(port) => write!(f, "{}:{}", self.hostname, port)
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}
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}
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}
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impl fmt::Display for Host {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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self.fmt_header(f)
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}
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}
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impl FromStr for Host {
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type Err = ::Error;
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fn from_str(s: &str) -> ::Result<Host> {
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let idx = s.rfind(':');
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let port = idx.and_then(
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|idx| s[idx + 1..].parse().ok()
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);
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let hostname_encoded = match port {
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None => s,
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Some(_) => &s[..idx.unwrap()]
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};
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let hostname = if hostname_encoded.starts_with("[") {
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if !hostname_encoded.ends_with("]") {
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return Err(::Error::Header)
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}
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hostname_encoded.to_owned()
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} else {
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let (hostname, res) = domain_to_unicode(hostname_encoded);
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if res.is_err() {
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return Err(::Error::Header)
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}
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hostname
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};
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Ok(Host {
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hostname: hostname,
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port: port
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})
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}
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}
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#[cfg(test)]
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mod tests {
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use super::Host;
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use header::Header;
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#[test]
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fn test_host() {
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let host = Header::parse_header(&vec![b"foo.com".to_vec()].into());
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assert_eq!(host.ok(), Some(Host {
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hostname: "foo.com".to_owned(),
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port: None
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}));
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let host = Header::parse_header(&vec![b"foo.com:8080".to_vec()].into());
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assert_eq!(host.ok(), Some(Host {
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hostname: "foo.com".to_owned(),
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port: Some(8080)
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}));
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let host = Header::parse_header([b"foo.com".to_vec()].as_ref());
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assert_eq!(host.ok(), Some(Host {
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hostname: "foo.com".to_owned(),
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port: None
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}));
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let host = Header::parse_header([b"[::1]:8080".to_vec()].as_ref());
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assert_eq!(host.ok(), Some(Host {
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hostname: "[::1]".to_owned(),
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port: Some(8080)
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}));
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let host = Header::parse_header([b"[::1]".to_vec()].as_ref());
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assert_eq!(host.ok(), Some(Host {
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hostname: "[::1]".to_owned(),
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port: None
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}));
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}
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}
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bench_header!(bench, Host, { vec![b"foo.com:3000".to_vec()] });
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