mirror of
https://github.com/ansible-collections/community.docker.git
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109 lines
3.7 KiB
Python
109 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
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# This code is part of the Ansible collection community.docker, but is an independent component.
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# This particular file, and this file only, is based on the Docker SDK for Python (https://github.com/docker/docker-py/)
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#
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# Copyright (c) 2016-2022 Docker, Inc.
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#
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# It is licensed under the Apache 2.0 license (see LICENSES/Apache-2.0.txt in this collection)
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# SPDX-License-Identifier: Apache-2.0
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from __future__ import annotations
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import socket
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from .. import constants
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from .._import_helper import HTTPAdapter, urllib3, urllib3_connection
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from .basehttpadapter import BaseHTTPAdapter
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RecentlyUsedContainer = urllib3._collections.RecentlyUsedContainer
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class UnixHTTPConnection(urllib3_connection.HTTPConnection, object):
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def __init__(self, base_url, unix_socket, timeout=60):
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super(UnixHTTPConnection, self).__init__("localhost", timeout=timeout)
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self.base_url = base_url
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self.unix_socket = unix_socket
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self.timeout = timeout
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self.disable_buffering = False
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def connect(self):
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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sock.settimeout(self.timeout)
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sock.connect(self.unix_socket)
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self.sock = sock
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def putheader(self, header, *values):
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super(UnixHTTPConnection, self).putheader(header, *values)
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if header == "Connection" and "Upgrade" in values:
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self.disable_buffering = True
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def response_class(self, sock, *args, **kwargs):
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# FIXME: We may need to disable buffering on Py3,
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# but there's no clear way to do it at the moment. See:
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# https://github.com/docker/docker-py/issues/1799
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return super(UnixHTTPConnection, self).response_class(sock, *args, **kwargs)
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class UnixHTTPConnectionPool(urllib3.connectionpool.HTTPConnectionPool):
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def __init__(self, base_url, socket_path, timeout=60, maxsize=10):
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super(UnixHTTPConnectionPool, self).__init__(
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"localhost", timeout=timeout, maxsize=maxsize
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)
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self.base_url = base_url
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self.socket_path = socket_path
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self.timeout = timeout
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def _new_conn(self):
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return UnixHTTPConnection(self.base_url, self.socket_path, self.timeout)
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class UnixHTTPAdapter(BaseHTTPAdapter):
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__attrs__ = HTTPAdapter.__attrs__ + [
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"pools",
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"socket_path",
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"timeout",
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"max_pool_size",
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]
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def __init__(
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self,
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socket_url,
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timeout=60,
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pool_connections=constants.DEFAULT_NUM_POOLS,
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max_pool_size=constants.DEFAULT_MAX_POOL_SIZE,
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):
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socket_path = socket_url.replace("http+unix://", "")
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if not socket_path.startswith("/"):
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socket_path = "/" + socket_path
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self.socket_path = socket_path
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self.timeout = timeout
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self.max_pool_size = max_pool_size
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self.pools = RecentlyUsedContainer(
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pool_connections, dispose_func=lambda p: p.close()
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)
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super(UnixHTTPAdapter, self).__init__()
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def get_connection(self, url, proxies=None):
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with self.pools.lock:
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pool = self.pools.get(url)
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if pool:
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return pool
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pool = UnixHTTPConnectionPool(
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url, self.socket_path, self.timeout, maxsize=self.max_pool_size
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)
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self.pools[url] = pool
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return pool
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def request_url(self, request, proxies):
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# The select_proxy utility in requests errors out when the provided URL
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# does not have a hostname, like is the case when using a UNIX socket.
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# Since proxies are an irrelevant notion in the case of UNIX sockets
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# anyway, we simply return the path URL directly.
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# See also: https://github.com/docker/docker-py/issues/811
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return request.path_url
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