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# -*- test-case-name: twisted.protocols.haproxy.test -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
IProxyInfo implementation.
"""
from typing import Optional

from zope.interface import implementer

import attr

from twisted.internet.interfaces import IAddress
from ._interfaces import IProxyInfo


@implementer(IProxyInfo)
@attr.s(frozen=True, slots=True, auto_attribs=True)
class ProxyInfo:
    """
    A data container for parsed PROXY protocol information.

    @ivar header: The raw header bytes extracted from the connection.
    @type header: C{bytes}
    @ivar source: The connection source address.
    @type source: L{twisted.internet.interfaces.IAddress}
    @ivar destination: The connection destination address.
    @type destination: L{twisted.internet.interfaces.IAddress}
    """

    header: bytes
    source: Optional[IAddress]
    destination: Optional[IAddress]