webparse/http/
version.rs

1// Copyright 2022 - 2023 Wenmeng See the COPYRIGHT
2// file at the top-level directory of this distribution.
3//
4// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
5// http://www.apache.org/licenses/LICENSE-2.0>, at your
6// option. This file may not be copied, modified, or distributed
7// except according to those terms.
8//
9// Author: tickbh
10// -----
11// Created Date: 2023/08/15 10:11:50
12
13use std::fmt::Display;
14
15use crate::{WebError, WebResult};
16use algorithm::buf::{Bt, BtMut};
17
18#[derive(Debug, Eq, PartialEq, Clone)]
19pub enum Version {
20    None,
21    Http10,
22    Http11,
23    Http2,
24    Http3,
25}
26
27impl Copy for Version {}
28
29impl Version {
30    pub const HTTP10: Version = Version::Http10;
31    pub const SHTTP10: &'static str = "HTTP/1.0";
32    pub const HTTP11: Version = Version::Http11;
33    pub const SHTTP11: &'static str = "HTTP/1.1";
34    pub const HTTP2: Version = Version::Http2;
35    pub const SHTTP2: &'static str = "HTTP/2";
36    pub const HTTP3: Version = Version::Http3;
37    pub const SHTTP3: &'static str = "HTTP/3";
38
39    pub fn as_str(&self) -> &'static str {
40        match self {
41            Version::Http10 => "HTTP/1.0",
42            Version::Http11 => "HTTP/1.1",
43            Version::Http2 => "HTTP/2",
44            Version::Http3 => "HTTP/3",
45            Version::None => "None",
46        }
47    }
48
49    pub fn encode<B: Bt + BtMut>(&mut self, buffer: &mut B) -> WebResult<usize> {
50        match self {
51            Version::None => Err(WebError::Serialize("version")),
52            _ => Ok(buffer.put_slice(&self.as_str().as_bytes())),
53        }
54    }
55
56    pub fn is_http1(&self) -> bool {
57        match self {
58            Version::Http10 => true,
59            Version::Http11 => true,
60            _ => false,
61        }
62    }
63
64    pub fn is_http2(&self) -> bool {
65        match self {
66            Version::Http2 => true,
67            _ => false,
68        }
69    }
70}
71
72impl From<&str> for Version {
73    fn from(value: &str) -> Self {
74        match value {
75            "HTTP/1.0" => Version::HTTP10,
76            "HTTP/1.1" => Version::HTTP11,
77            "HTTP/2" => Version::HTTP2,
78            "HTTP/3" => Version::HTTP3,
79            _ => Version::None
80        }
81    }
82}
83
84impl Display for Version {
85    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
86        f.write_str(&self.as_str())
87    }
88}
webparse/http/version.rs

webparse/http/
version.rs
