Current File : //lib/python3.6/site-packages/requests_toolbelt/utils/deprecated.py
# -*- coding: utf-8 -*-
"""A collection of functions deprecated in requests.utils."""
import re
import sys
from requests import utils
find_charset = re.compile(
br'<meta.*?charset=["\']*(.+?)["\'>]', flags=re.I
).findall
find_pragma = re.compile(
br'<meta.*?content=["\']*;?charset=(.+?)["\'>]', flags=re.I
).findall
find_xml = re.compile(
br'^<\?xml.*?encoding=["\']*(.+?)["\'>]'
).findall
def get_encodings_from_content(content):
"""Return encodings from given content string.
.. code-block:: python
import requests
from requests_toolbelt.utils import deprecated
r = requests.get(url)
encodings = deprecated.get_encodings_from_content(r)
:param content: bytestring to extract encodings from
:type content: bytes
:return: encodings detected in the provided content
:rtype: list(str)
"""
encodings = (find_charset(content) + find_pragma(content)
+ find_xml(content))
if (3, 0) <= sys.version_info < (4, 0):
encodings = [encoding.decode('utf8') for encoding in encodings]
return encodings
def get_unicode_from_response(response):
"""Return the requested content back in unicode.
This will first attempt to retrieve the encoding from the response
headers. If that fails, it will use
:func:`requests_toolbelt.utils.deprecated.get_encodings_from_content`
to determine encodings from HTML elements.
.. code-block:: python
import requests
from requests_toolbelt.utils import deprecated
r = requests.get(url)
text = deprecated.get_unicode_from_response(r)
:param response: Response object to get unicode content from.
:type response: requests.models.Response
"""
tried_encodings = set()
# Try charset from content-type
encoding = utils.get_encoding_from_headers(response.headers)
if encoding:
try:
return str(response.content, encoding)
except UnicodeError:
tried_encodings.add(encoding.lower())
encodings = get_encodings_from_content(response.content)
for _encoding in encodings:
_encoding = _encoding.lower()
if _encoding in tried_encodings:
continue
try:
return str(response.content, _encoding)
except UnicodeError:
tried_encodings.add(_encoding)
# Fall back:
if encoding:
try:
return str(response.content, encoding, errors='replace')
except TypeError:
pass
return response.text
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