3e456f00f9
* fix `extern crate` declaration for rustc-serialize * enable `into_cow` feature * replace as_slice() calls by as_ref and enable `convert` feature * use `core` feature in doc tests
64 lines
1.5 KiB
Rust
64 lines
1.5 KiB
Rust
use header::{Header, HeaderFormat};
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use std::fmt;
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use std::str::FromStr;
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use header::parsing::{from_comma_delimited, fmt_comma_delimited};
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use unicase::UniCase;
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use self::Protocol::{WebSocket, ProtocolExt};
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/// The `Upgrade` header.
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#[derive(Clone, PartialEq, Debug)]
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pub struct Upgrade(pub Vec<Protocol>);
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deref!(Upgrade => Vec<Protocol>);
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/// Protocol values that can appear in the Upgrade header.
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#[derive(Clone, PartialEq, Debug)]
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pub enum Protocol {
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/// The websocket protocol.
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WebSocket,
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/// Some other less common protocol.
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ProtocolExt(String),
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}
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impl FromStr for Protocol {
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type Err = ();
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fn from_str(s: &str) -> Result<Protocol, ()> {
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if UniCase(s) == UniCase("websocket") {
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Ok(WebSocket)
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}
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else {
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Ok(ProtocolExt(s.to_string()))
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}
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}
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}
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impl fmt::Display for Protocol {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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write!(fmt, "{}", match *self {
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WebSocket => "websocket",
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ProtocolExt(ref s) => s.as_ref()
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})
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}
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}
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impl Header for Upgrade {
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fn header_name() -> &'static str {
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"Upgrade"
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}
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fn parse_header(raw: &[Vec<u8>]) -> Option<Upgrade> {
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from_comma_delimited(raw).map(|vec| Upgrade(vec))
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}
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}
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impl HeaderFormat for Upgrade {
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fn fmt_header(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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let Upgrade(ref parts) = *self;
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fmt_comma_delimited(fmt, &parts[..])
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}
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}
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bench_header!(bench, Upgrade, { vec![b"HTTP/2.0, RTA/x11, websocket".to_vec()] });
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