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