�
��fg � � � d dl mZ d dlZd dlZddlmZ ddlmZ ddlm Z m
Z
d� Zej ddfd �Z
d
� Zd� Zd� Z ed
� � ZdS )� )�absolute_importN� )�_appengine_environ)�LocationParseError� )�NoWayToWaitForSocketError�
wait_for_readc �~ � t | dd� � }|du rdS |�dS t |d�� � S # t $ r Y dS w xY w)a$
Returns True if the connection is dropped and should be closed.
:param conn:
:class:`http.client.HTTPConnection` object.
Note: For platforms like AppEngine, this will always return ``False`` to
let the platform handle connection recycling transparently for us.
�sockFNTg )�timeout)�getattrr r )�connr s �9/usr/lib/python3/dist-packages/urllib3/util/connection.py�is_connection_droppedr sg � � �4���'�'�D��u�}�}��u��|��t���T�3�/�/�/�/��$� � � ��u�u����s �. �
<�<c � � | \ }}|� d� � r|� d� � }d}t � � } |� d� � n5# t $ r( t j t d|z � � d� � cY S w xY wt j |||t j
� � D ]�}|\ } }
}}}
d} t j | |
|� � }t ||� � |t j ur|�
|� � |r|� |� � |� |
� � |c S # t j $ r$}|}|�|� � � d}Y d}~��d}~ww xY w|�|�t j d� � �)ak Connect to *address* and return the socket object.
Convenience function. Connect to *address* (a 2-tuple ``(host,
port)``) and return the socket object. Passing the optional
*timeout* parameter will set the timeout on the socket instance
before attempting to connect. If no *timeout* is supplied, the
global default timeout setting returned by :func:`socket.getdefaulttimeout`
is used. If *source_address* is set it must be a tuple of (host, port)
for the socket to bind as a source address before making the connection.
An host of '' or port 0 tells the OS to use the default.
�[z[]N�idnaz'%s', label empty or too longz!getaddrinfo returns an empty list)�
startswith�strip�allowed_gai_family�encode�UnicodeError�six�
raise_fromr �socket�getaddrinfo�SOCK_STREAM�_set_socket_options�_GLOBAL_DEFAULT_TIMEOUT�
settimeout�bind�connect�error�close)�addressr �source_address�socket_options�host�port�err�family�res�af�socktype�proto� canonname�sar �es r �create_connectionr3 & |