mirror of
https://github.com/Hopiu/linkchecker.git
synced 2026-05-28 15:48:16 +00:00
f2e5a435e3
Not used since:
7b34be590 ("Introduce check plugins, use Python requests for http/s connections, and some code cleanups and improvements.", 2014-03-01)
83 lines
3.2 KiB
Python
83 lines
3.2 KiB
Python
# Copyright (C) 2000-2014 Bastian Kleineidam
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
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Mixin class for URLs that can be fetched over a proxy.
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"""
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import urllib.parse
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import urllib.request
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import os
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from .. import LinkCheckerError, log, LOG_CHECK, url as urlutil
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class ProxySupport:
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"""Get support for proxying and for URLs with user:pass@host setting."""
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def set_proxy(self, proxy):
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"""Parse given proxy information and store parsed values.
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Note that only *http://* proxies are supported, both for *ftp://*
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and *http://* URLs.
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"""
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self.proxy = proxy
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self.proxytype = "http"
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if not self.proxy:
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return
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proxyurl = urllib.parse.urlparse(self.proxy)
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self.proxytype = proxyurl.scheme
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if self.proxytype not in ('http', 'https'):
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# Note that invalid proxies might raise TypeError in urllib2,
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# so make sure to stop checking at this point, not later.
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msg = _(
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"Proxy value `%(proxy)s' must start with 'http:' or 'https:'."
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) % dict(proxy=proxy)
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raise LinkCheckerError(msg)
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if self.ignore_proxy_host():
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# log proxy without auth info
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log.debug(LOG_CHECK, "ignoring proxy %r", self.proxy)
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self.add_info(_("Ignoring proxy setting `%(proxy)s'.") % dict(proxy=proxy))
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self.proxy = None
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return
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log.debug(LOG_CHECK, "using proxy %r", self.proxy)
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self.add_info(_("Using proxy `%(proxy)s'.") % dict(proxy=self.proxy))
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self.proxyhost = proxyurl.hostname
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self.proxyport = proxyurl.port
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def ignore_proxy_host(self):
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"""Check if self.host is in the $no_proxy ignore list."""
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if urllib.request.proxy_bypass(self.host):
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return True
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no_proxy = os.environ.get("no_proxy")
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if no_proxy:
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entries = [urlutil.splitport(x.strip()) for x in no_proxy.split(",")]
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for host, port in entries:
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if host.lower() == self.host and port == self.port:
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return True
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return False
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def get_netloc(self):
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"""Determine scheme, host and port for this connection taking
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proxy data into account.
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@return: tuple (scheme, host, port)
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@rtype: tuple(string, string, int)
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"""
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if self.proxy:
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scheme = self.proxytype
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host = self.proxyhost
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port = self.proxyport
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else:
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scheme = self.scheme
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host = self.host
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port = self.port
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return (scheme, host, port)
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