File: //lib64/python3.6/site-packages/tornado/__pycache__/httpclient.cpython-36.pyc
3
��f\z � @ s2 d Z ddlZddlZddlmZ ddlZddlZddlZddlm Z m
Z
mZ ddlm
Z
mZ ddlmZmZ ddlmZ ddlmZ dd lmZmZmZmZmZmZmZmZ G d
d� de�Z G dd
� d
e�Z!G dd� de�Z"G dd� de�Z#G dd� de$�Z%e%Z&G dd� de�Z'dd�dd�Z(e)dk�r.e(� dS )a� Blocking and non-blocking HTTP client interfaces.
This module defines a common interface shared by two implementations,
``simple_httpclient`` and ``curl_httpclient``. Applications may either
instantiate their chosen implementation class directly or use the
`AsyncHTTPClient` class from this module, which selects an implementation
that can be overridden with the `AsyncHTTPClient.configure` method.
The default implementation is ``simple_httpclient``, and this is expected
to be suitable for most users' needs. However, some applications may wish
to switch to ``curl_httpclient`` for reasons such as the following:
* ``curl_httpclient`` has some features not found in ``simple_httpclient``,
including support for HTTP proxies and the ability to use a specified
network interface.
* ``curl_httpclient`` is more likely to be compatible with sites that are
not-quite-compliant with the HTTP spec, or sites that use little-exercised
features of HTTP.
* ``curl_httpclient`` is faster.
Note that if you are using ``curl_httpclient``, it is highly
recommended that you use a recent version of ``libcurl`` and
``pycurl``. Currently the minimum supported version of libcurl is
7.22.0, and the minimum version of pycurl is 7.18.2. It is highly
recommended that your ``libcurl`` installation is built with
asynchronous DNS resolver (threaded or c-ares), otherwise you may
encounter various problems with request timeouts (for more
information, see
http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTCONNECTTIMEOUTMS
and comments in curl_httpclient.py).
To select ``curl_httpclient``, call `AsyncHTTPClient.configure` at startup::
AsyncHTTPClient.configure("tornado.curl_httpclient.CurlAsyncHTTPClient")
� N)�BytesIO)�Future�"future_set_result_unless_cancelled�%future_set_exception_unless_cancelled)�utf8�
native_str)�gen�httputil)�IOLoop)�Configurable)�Type�Any�Union�Dict�Callable�Optional�cast� Awaitablec @ s^ e Zd ZdZded edd�dd�Zdd�dd �Zdd�d
d�Ze de
f ed
d�dd�ZdS )�
HTTPClienta� A blocking HTTP client.
This interface is provided to make it easier to share code between
synchronous and asynchronous applications. Applications that are
running an `.IOLoop` must use `AsyncHTTPClient` instead.
Typical usage looks like this::
http_client = httpclient.HTTPClient()
try:
response = http_client.fetch("http://www.google.com/")
print(response.body)
except httpclient.HTTPError as e:
# HTTPError is raised for non-200 responses; the response
# can be found in e.response.
print("Error: " + str(e))
except Exception as e:
# Other errors are possible, such as IOError.
print("Error: " + str(e))
http_client.close()
.. versionchanged:: 5.0
Due to limitations in `asyncio`, it is no longer possible to
use the synchronous ``HTTPClient`` while an `.IOLoop` is running.
Use `AsyncHTTPClient` instead.
N�AsyncHTTPClient)�async_client_class�kwargs�returnc sJ d| _ tdd�| _� d krt� dd�� �fdd�}| jj|�| _d| _ d S )NTF)Zmake_currentr )r c � s&