Struct Header

pub struct Header<'a> {
    pub header: Cow<'a, str>,
    pub addresses: Addresses,
}

A text PROXY protocol header that borrows the input string.

Examples

Worst Case (from bytes)

use rama_haproxy::protocol::v1::{Addresses, Header, UNKNOWN};

let input = "PROXY UNKNOWN ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535 65535\r\n";
let header = Header::try_from(input.as_bytes()).unwrap();

assert_eq!(header, Header::new(input, Addresses::Unknown));
assert_eq!(header.protocol(), UNKNOWN);
assert_eq!(header.addresses_str(), "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535 65535");

UNKNOWN

use rama_haproxy::protocol::v1::{Addresses, Header, UNKNOWN};

let input = "PROXY UNKNOWN\r\nhello";
let header = Header::try_from(input).unwrap();

assert_eq!(header, Header::new("PROXY UNKNOWN\r\n", Addresses::Unknown));
assert_eq!(header.protocol(), UNKNOWN);
assert_eq!(header.addresses_str(), "");

TCP4

use std::net::Ipv4Addr;
use rama_haproxy::protocol::v1::{Header, Addresses, TCP4};

let input = "PROXY TCP4 127.0.1.2 192.168.1.101 80 443\r\n";
let header = Header::try_from(input).unwrap();

assert_eq!(header, Header::new(input, Addresses::new_tcp4(Ipv4Addr::new(127, 0, 1, 2), Ipv4Addr::new(192, 168, 1, 101), 80, 443)));
assert_eq!(header.protocol(), TCP4);
assert_eq!(header.addresses_str(), "127.0.1.2 192.168.1.101 80 443");

TCP6

use std::net::Ipv6Addr;
use rama_haproxy::protocol::v1::{Header, Addresses, TCP6};

let input = "PROXY TCP6 1234:5678:90ab:cdef:fedc:ba09:8765:4321 4321:8765:ba09:fedc:cdef:90ab:5678:1234 443 65535\r\n";
let header = Header::try_from(input).unwrap();

assert_eq!(
    header,
    Header::new(
        input,
        Addresses::new_tcp6(
            Ipv6Addr::from([0x1234, 0x5678, 0x90AB, 0xCDEF, 0xFEDC, 0xBA09, 0x8765, 0x4321]),
            Ipv6Addr::from([0x4321, 0x8765, 0xBA09, 0xFEDC, 0xCDEF, 0x90AB, 0x5678, 0x01234,]),
            443,
            65535
        )
    )
);
assert_eq!(header.protocol(), TCP6);
assert_eq!(header.addresses_str(), "1234:5678:90ab:cdef:fedc:ba09:8765:4321 4321:8765:ba09:fedc:cdef:90ab:5678:1234 443 65535");

Invalid

use rama_haproxy::protocol::v1::{Header, Addresses, ParseError};

assert_eq!(Err(ParseError::InvalidProtocol), "PROXY tcp4\r\n".parse::<Addresses>());

Fields

header: Cow<'a, str>

The original input string.

addresses: Addresses

The source and destination addresses of the header.

Implementations

impl<'a> Header<'a>

pub fn new<H, A>(header: H, addresses: A) -> Header<'a>

where H: Into<&'a str>, A: Into<Addresses>,

Creates a new Header with the given addresses and a reference to the original input.

pub fn to_owned(&self) -> Header<'static>

Creates an owned clone of this Header.

pub fn protocol(&self) -> &str

The protocol portion of this Header.

pub fn addresses_str(&self) -> &str

The source and destination addresses portion of this Header.

Trait Implementations

impl<'a> Clone for Header<'a>

fn clone(&self) -> Header<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for Header<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for Header<'_>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl FromStr for Header<'static>

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str( s: &str, ) -> Result<Header<'static>, <Header<'static> as FromStr>::Err>

Parses a string s to return a value of this type.

impl<'a> Hash for Header<'a>

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a> PartialEq for Header<'a>

fn eq(&self, other: &Header<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> TryFrom<&'a [u8]> for Header<'a>

type Error = BinaryParseError

The type returned in the event of a conversion error.

fn try_from( input: &'a [u8], ) -> Result<Header<'a>, <Header<'a> as TryFrom<&'a [u8]>>::Error>

Performs the conversion.

impl<'a> TryFrom<&'a str> for Header<'a>

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from( input: &'a str, ) -> Result<Header<'a>, <Header<'a> as TryFrom<&'a str>>::Error>

Performs the conversion.

impl<'a> Eq for Header<'a>

impl<'a> StructuralPartialEq for Header<'a>