/usr/lib/python2.7/dist-packages/cssutils/_fetch.py is in python-cssutils 1.0-4.1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | """Default URL reading functions"""
__all__ = ['_defaultFetcher']
__docformat__ = 'restructuredtext'
__version__ = '$Id: tokenize2.py 1547 2008-12-10 20:42:26Z cthedot $'
import cssutils
from cssutils import VERSION
import encutils
import errorhandler
import urllib2
log = errorhandler.ErrorHandler()
def _defaultFetcher(url):
"""Retrieve data from ``url``. cssutils default implementation of fetch
URL function.
Returns ``(encoding, string)`` or ``None``
"""
try:
request = urllib2.Request(url)
request.add_header('User-agent',
'cssutils %s (http://www.cthedot.de/cssutils/)' % VERSION)
res = urllib2.urlopen(request)
except urllib2.HTTPError, e:
# http error, e.g. 404, e can be raised
log.warn(u'HTTPError opening url=%s: %s %s' %
(url, e.code, e.msg), error=e)
except urllib2.URLError, e:
# URLError like mailto: or other IO errors, e can be raised
log.warn(u'URLError, %s' % e.reason, error=e)
except OSError, e:
# e.g if file URL and not found
log.warn(e, error=OSError)
except ValueError, e:
# invalid url, e.g. "1"
log.warn(u'ValueError, %s' % e.args[0], error=ValueError)
else:
if res:
mimeType, encoding = encutils.getHTTPInfo(res)
if mimeType != u'text/css':
log.error(u'Expected "text/css" mime type for url=%r but found: %r' %
(url, mimeType), error=ValueError)
content = res.read()
if hasattr(res, 'close'):
res.close()
return encoding, content
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