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import warnings
from webob.compat import (
escape,
string_types,
text_,
text_type,
)
from webob.headers import _trans_key
def html_escape(s):
"""HTML-escape a string or object
This converts any non-string objects passed into it to strings
(actually, using ``unicode()``). All values returned are
non-unicode strings (using ``&#num;`` entities for all non-ASCII
characters).
None is treated specially, and returns the empty string.
"""
if s is None:
return ''
__html__ = getattr(s, '__html__', None)
if __html__ is not None and callable(__html__):
return s.__html__()
if not isinstance(s, string_types):
__unicode__ = getattr(s, '__unicode__', None)
if __unicode__ is not None and callable(__unicode__):
s = s.__unicode__()
else:
s = str(s)
s = escape(s, True)
if isinstance(s, text_type):
s = s.encode('ascii', 'xmlcharrefreplace')
return text_(s)
def header_docstring(header, rfc_section):
if header.isupper():
header = _trans_key(header)
major_section = rfc_section.split('.')[0]
link = 'http://www.w3.org/Protocols/rfc2616/rfc2616-sec%s.html#sec%s' % (
major_section, rfc_section)
return "Gets and sets the ``%s`` header (`HTTP spec section %s <%s>`_)." % (
header, rfc_section, link)
def warn_deprecation(text, version, stacklevel): # pragma: no cover
# version specifies when to start raising exceptions instead of warnings
if version == '1.2':
raise DeprecationWarning(text)
elif version == '1.3':
cls = DeprecationWarning
else:
cls = DeprecationWarning
warnings.warn("Unknown warn_deprecation version arg: %r" % version,
RuntimeWarning,
stacklevel=1
)
warnings.warn(text, cls, stacklevel=stacklevel+1)
status_reasons = {
# Status Codes
# Informational
100: 'Continue',
101: 'Switching Protocols',
102: 'Processing',
# Successful
200: 'OK',
201: 'Created',
202: 'Accepted',
203: 'Non-Authoritative Information',
204: 'No Content',
205: 'Reset Content',
206: 'Partial Content',
207: 'Multi Status',
226: 'IM Used',
# Redirection
300: 'Multiple Choices',
301: 'Moved Permanently',
302: 'Found',
303: 'See Other',
304: 'Not Modified',
305: 'Use Proxy',
307: 'Temporary Redirect',
# Client Error
400: 'Bad Request',
401: 'Unauthorized',
402: 'Payment Required',
403: 'Forbidden',
404: 'Not Found',
405: 'Method Not Allowed',
406: 'Not Acceptable',
407: 'Proxy Authentication Required',
408: 'Request Timeout',
409: 'Conflict',
410: 'Gone',
411: 'Length Required',
412: 'Precondition Failed',
413: 'Request Entity Too Large',
414: 'Request URI Too Long',
415: 'Unsupported Media Type',
416: 'Requested Range Not Satisfiable',
417: 'Expectation Failed',
418: "I'm a teapot",
422: 'Unprocessable Entity',
423: 'Locked',
424: 'Failed Dependency',
426: 'Upgrade Required',
# Server Error
500: 'Internal Server Error',
501: 'Not Implemented',
502: 'Bad Gateway',
503: 'Service Unavailable',
504: 'Gateway Timeout',
505: 'HTTP Version Not Supported',
507: 'Insufficient Storage',
510: 'Not Extended',
}
# generic class responses as per RFC2616
status_generic_reasons = {
1: 'Continue',
2: 'Success',
3: 'Multiple Choices',
4: 'Unknown Client Error',
5: 'Unknown Server Error',
}