address 0.20.0-rc.1

This library aids in processing network addresses.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71

use crate::{DomainRef, Endpoint, EndpointRef, ParseError};
use crate::{parse_lowercase, parse_port};
use std::str::FromStr;

impl FromStr for Endpoint {
    type Err = ParseError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        parse_lowercase(s, |s| Ok(EndpointRef::try_from(s)?.to_endpoint()))
    }
}

impl<'a> TryFrom<&'a str> for EndpointRef<'a> {
    type Error = ParseError;

    /// The domain name must already be lowercase, since a borrowed name cannot be normalized. Use `Endpoint::from_str`
    /// to parse mixed-case domain names.
    fn try_from(endpoint: &'a str) -> Result<Self, Self::Error> {
        Self::try_from(endpoint.as_bytes())
    }
}

impl<'a> TryFrom<&'a [u8]> for EndpointRef<'a> {
    type Error = ParseError;

    /// The domain name must already be lowercase, since a borrowed name cannot be normalized. Use `Endpoint::from_str`
    /// to parse mixed-case domain names.
    fn try_from(endpoint: &'a [u8]) -> Result<Self, Self::Error> {
        let (domain, port): (&[u8], u16) = parse_port(endpoint)?;
        let domain: DomainRef = DomainRef::try_from(domain)?;
        Ok(Self::new(domain, port))
    }
}

#[cfg(test)]
mod tests {
    use crate::ParseError::{InvalidDomain, InvalidPort};
    use crate::{DomainRef, Endpoint, EndpointRef, ParseError};
    use std::str::FromStr;

    #[test]
    fn from_str() {
        let test_cases: &[(&str, Result<Endpoint, ParseError>)] = &[
            ("", Err(InvalidPort)),
            ("localhost:", Err(InvalidPort)),
            ("localhost:xx", Err(InvalidPort)),
            (":80", Err(InvalidDomain)),
            ("[localhost]:80", Err(InvalidDomain)),
            ("LocalHost:80", Ok(DomainRef::LOCALHOST.to_domain().to_endpoint(80))),
            ("localhost:80", Ok(DomainRef::LOCALHOST.to_domain().to_endpoint(80))),
        ];

        for (input, expected) in test_cases {
            let result: Result<Endpoint, ParseError> = Endpoint::from_str(input);
            assert_eq!(result, *expected, "input={}", input);
        }
    }

    #[test]
    fn try_from_slice() {
        let test_cases: &[(&str, Result<EndpointRef, ParseError>)] = &[
            ("localhost:80", Ok(EndpointRef::new(DomainRef::LOCALHOST, 80))),
            ("LocalHost:80", Err(InvalidDomain)),
        ];

        for (input, expected) in test_cases {
            let result: Result<EndpointRef, ParseError> = EndpointRef::try_from(input.as_bytes());
            assert_eq!(result, *expected, "input={}", input);
        }
    }
}