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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
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| Current Path : /var/lib/python-support/python2.7/reportbug/ |
| Current File : //var/lib/python-support/python2.7/reportbug/urlutils.py |
#
# urlutils.py - Simplified urllib handling
#
# Written by Chris Lawrence <lawrencc@debian.org>
# (C) 1999-2008 Chris Lawrence
# Copyright (C) 2008-2012 Sandro Tosi <morph@debian.org>
#
# This program is freely distributable per the following license:
#
## Permission to use, copy, modify, and distribute this software and its
## documentation for any purpose and without fee is hereby granted,
## provided that the above copyright notice appears in all copies and that
## both that copyright notice and this permission notice appear in
## supporting documentation.
##
## I DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL I
## BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
## DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
## WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
## ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
## SOFTWARE.
import httplib
import urllib
import urllib2
import getpass
import re
import socket
import commands
import os
import sys
import webbrowser
from exceptions import (
NoNetwork,
)
from __init__ import VERSION_NUMBER
UA_STR = 'reportbug/'+VERSION_NUMBER+' (Debian)'
def decode (page):
"gunzip or deflate a compressed page"
#print page.info().headers
encoding = page.info().get("Content-Encoding")
if encoding in ('gzip', 'x-gzip', 'deflate'):
from cStringIO import StringIO
# cannot seek in socket descriptors, so must get content now
content = page.read()
if encoding == 'deflate':
import zlib
fp = StringIO(zlib.decompress(content))
else:
import gzip
fp = gzip.GzipFile('', 'rb', 9, StringIO(content))
# remove content-encoding header
headers = httplib.HTTPMessage(StringIO(""))
ceheader = re.compile(r"(?i)content-encoding:")
for h in page.info().keys():
if not ceheader.match(h):
headers[h] = page.info()[h]
newpage = urllib.addinfourl(fp, headers, page.geturl())
# Propagate code, msg through
if hasattr(page, 'code'):
newpage.code = page.code
if hasattr(page, 'msg'):
newpage.msg = page.msg
return newpage
return page
class HttpWithGzipHandler (urllib2.HTTPHandler):
"support gzip encoding"
def http_open (self, req):
return decode(urllib2.HTTPHandler.http_open(self, req))
if hasattr(httplib, 'HTTPS'):
class HttpsWithGzipHandler (urllib2.HTTPSHandler):
"support gzip encoding"
def https_open (self, req):
return decode(urllib2.HTTPSHandler.https_open(self, req))
class handlepasswd(urllib2.HTTPPasswordMgrWithDefaultRealm):
def find_user_password(self, realm, authurl):
user, password = urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password(self, realm, authurl)
if user is not None:
return user, password
user = raw_input('Enter username for %s at %s: ' % (realm, authurl))
password = getpass.getpass(
"Enter password for %s in %s at %s: " % (user, realm, authurl))
self.add_password(realm, authurl, user, password)
return user, password
_opener = None
def urlopen(url, proxies=None, data=None):
global _opener
if not proxies:
proxies = urllib.getproxies()
headers = {'User-Agent': UA_STR,
'Accept-Encoding' : 'gzip;q=1.0, deflate;q=0.9, identity;q=0.5'}
req = urllib2.Request(url, data, headers)
proxy_support = urllib2.ProxyHandler(proxies)
if _opener is None:
pwd_manager = handlepasswd()
handlers = [proxy_support,
urllib2.UnknownHandler, HttpWithGzipHandler,
urllib2.HTTPBasicAuthHandler(pwd_manager),
urllib2.ProxyBasicAuthHandler(pwd_manager),
urllib2.HTTPDigestAuthHandler(pwd_manager),
urllib2.ProxyDigestAuthHandler(pwd_manager),
urllib2.HTTPDefaultErrorHandler, urllib2.HTTPRedirectHandler,
]
if hasattr(httplib, 'HTTPS'):
handlers.append(HttpsWithGzipHandler)
_opener = urllib2.build_opener(*handlers)
# print _opener.handlers
urllib2.install_opener(_opener)
return _opener.open(req)
# Global useful URL opener; returns None if the page is absent, otherwise
# like urlopen
def open_url(url, http_proxy=None, timeout=60):
# Set timeout to 60 secs (1 min), cfr bug #516449
# in #572316 we set a user-configurable timeout
socket.setdefaulttimeout(timeout)
proxies = urllib.getproxies()
if http_proxy:
proxies['http'] = http_proxy
try:
page = urlopen(url, proxies)
except urllib2.HTTPError, x:
if x.code in (404, 500, 503):
return None
else:
raise
except (socket.gaierror, socket.error, urllib2.URLError), x:
raise NoNetwork
except IOError, data:
if data and data[0] == 'http error' and data[1] == 404:
return None
else:
raise NoNetwork
except TypeError:
print >> sys.stderr, "http_proxy environment variable must be formatted as a valid URI"
raise NoNetwork
except httplib.HTTPException, exc:
exc_name = exc.__class__.__name__
message = (
"Failed to open %(url)r"
" (%(exc_name)s: %(exc)s)"
) % vars()
raise NoNetwork(message)
return page
def launch_browser(url):
if not os.system('command -v xdg-open >/dev/null 2>&1'):
cmd = 'xdg-open' + commands.mkarg(url)
os.system(cmd)
return
if webbrowser:
webbrowser.open(url)
return
X11BROWSER = os.environ.get('X11BROWSER', 'mozilla-firefox')
CONSOLEBROWSER = os.environ.get('CONSOLEBROWSER', 'lynx')
if (os.environ.has_key('DISPLAY') and
not os.system('command -v '+X11BROWSER+' &> /dev/null')):
cmd = "%s %s &" % (X11BROWSER, commands.mkarg(url))
else:
cmd = "%s %s" % (CONSOLEBROWSER, commands.mkarg(url))
os.system(cmd)
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