sark_http/uri/
scheme.rs

1use crate::{field::metadata::map::record, uri::Error};
2
3#[derive(Clone, Copy, Debug, PartialEq, Eq)]
4#[repr(u8)]
5pub enum Scheme {
6    None,
7    Http,
8    Https,
9    Other,
10}
11
12impl Scheme {
13    pub(crate) fn validate(value: &[u8]) -> Result<(), Error> {
14        Self::check_span(record::Span::from_slice(value))
15    }
16
17    pub fn parse(value: &[u8]) -> Result<Self, Error> {
18        Self::parse_span(record::Span::from_slice(value))
19    }
20
21    pub fn parse_span(value: record::Span<'_>) -> Result<Self, Error> {
22        if value.eq_ascii(b"http") {
23            Ok(Self::Http)
24        } else if value.eq_ascii(b"https") {
25            Ok(Self::Https)
26        } else {
27            Self::check_span(value)?;
28            Ok(Self::Other)
29        }
30    }
31
32    fn check_span(value: record::Span<'_>) -> Result<(), Error> {
33        if !value.get(0).is_some_and(|byte| byte.is_ascii_alphabetic())
34            || !value
35                .iter()
36                .skip(1)
37                .all(|byte| byte.is_ascii_alphanumeric() || matches!(*byte, b'+' | b'-' | b'.'))
38        {
39            return Err(Error::InvalidScheme);
40        }
41        Ok(())
42    }
43}
sark_http/uri/scheme.rs

sark_http/uri/
scheme.rs
