Limnoria/src/webutils.py
2004-01-31 17:36:17 +00:00

85 lines
2.8 KiB
Python

#!/usr/bin/env python
###
# Copyright (c) 2002, Jeremiah Fincher
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
__revision__ = "$Id$"
import fix
import re
import socket
import urllib2
import urlparse
class WebError(Exception):
pass
urlRe = re.compile(r"(\w+://[^\])>\s]+)", re.I)
REFUSED = 'Connection refused.'
TIMED_OUT = 'Connection timed out.'
RESET_BY_PEER = 'Connection reset by peer.'
def getUrlFd(url):
"""Gets a file-like object for a url."""
try:
fd = urllib2.urlopen(url)
return fd
except socket.timeout, e:
raise WebError, TIMED_OUT
except socket.error, e:
if e.args[0] == 111:
raise WebError, REFUSED
elif e.args[0] in (110, 10060):
raise WebError, TIMED_OUT
elif e.args[0] == 104:
raise WebError, RESET_BY_PEER
else:
raise WebError, str(e)
except (urllib2.HTTPError, urllib2.URLError), e:
raise WebError, str(e)
def getUrl(url, size=None):
"""Gets a page. Returns a string that is the page gotten."""
fd = getUrlFd(url)
if size is None:
text = fd.read()
else:
text = fd.read(size)
fd.close()
return text
def getDomain(url):
return urlparse.urlparse(url)[1]
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