front_line_router/
http_version.rs

1/// Represents versions of the HTTP protocol.
2///
3/// Currently supports only HTTP/1.0 and HTTP/1.1.
4#[derive(Eq, PartialEq, Debug)]
5pub enum HttpVersion {
6    /// Represents the HTTP/1.0 version.
7    OneZero,
8
9    /// Represents the HTTP/1.1 version.
10    ///
11    /// This version includes features like persistent connections and chunked transfer-coding.
12    OneOne,
13}
14
15impl HttpVersion {
16    /// Parse an HTTP version from the given request line slice.
17    ///
18    /// This function will attempt to parse the provided slice and return the identified
19    /// HTTP version if recognized.
20    ///
21    /// # Arguments
22    ///
23    /// * `remaining_request_line` - A byte slice containing the part of the request
24    ///   line representing the HTTP version.
25    ///
26    /// # Returns
27    ///
28    /// Returns `Some(HttpVersion)` if a valid HTTP version is identified. Otherwise,
29    /// returns `None`.
30    pub fn parse(remaining_request_line: &[u8]) -> Option<Self> {
31        if remaining_request_line == b"HTTP/1.1" {
32            return Some(HttpVersion::OneOne);
33        }
34        if remaining_request_line == b"HTTP/1.0" {
35            return Some(HttpVersion::OneZero);
36        }
37        None
38    }
39}
40
41#[cfg(test)]
42mod tests {
43    use super::HttpVersion;
44    use rstest::rstest;
45
46    #[rstest]
47    #[case(b"HTTP/1.1", Some(HttpVersion::OneOne))]
48    #[case(b"HTTP/1.0", Some(HttpVersion::OneZero))]
49    #[case(b"HTTP/0.9", None)]
50    #[case(b"HTTP/2.0", None)]
51    #[case(b"HTTPS/1.1", None)]
52    #[case(b"HTTP/1.10", None)]
53    #[case(b"HTTP/1.", None)]
54    fn test_http_version_parsing(#[case] input: &[u8], #[case] expected: Option<HttpVersion>) {
55        assert_eq!(HttpVersion::parse(input), expected);
56    }
57}
front_line_router/http_version.rs

front_line_router/
http_version.rs
