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43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
from __future__ import annotations
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import typing
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from .url import Url
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if typing.TYPE_CHECKING:
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from ..connection import ProxyConfig
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def connection_requires_http_tunnel(
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proxy_url: Url | None = None,
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proxy_config: ProxyConfig | None = None,
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destination_scheme: str | None = None,
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) -> bool:
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"""
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Returns True if the connection requires an HTTP CONNECT through the proxy.
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:param URL proxy_url:
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URL of the proxy.
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:param ProxyConfig proxy_config:
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Proxy configuration from poolmanager.py
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:param str destination_scheme:
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The scheme of the destination. (i.e https, http, etc)
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"""
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# If we're not using a proxy, no way to use a tunnel.
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if proxy_url is None:
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return False
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# HTTP destinations never require tunneling, we always forward.
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if destination_scheme == "http":
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return False
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# Support for forwarding with HTTPS proxies and HTTPS destinations.
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if (
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proxy_url.scheme == "https"
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and proxy_config
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and proxy_config.use_forwarding_for_https
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):
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return False
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# Otherwise always use a tunnel.
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return True
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