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#-*- coding:utf-8 -*-
"""Mirrorselect 2.x
Tool for selecting Gentoo source and rsync mirrors.
Copyright 2005-2012 Gentoo Foundation
Copyright (C) 2005 Colin Kingsley <tercel@gentoo.org>
Copyright (C) 2008 Zac Medico <zmedico@gentoo.org>
Copyright (C) 2009 Sebastian Pipping <sebastian@pipping.org>
Copyright (C) 2009 Christian Ruppert <idl0r@gentoo.org>
Copyright (C) 2012 Brian Dolbec <dolsen@gentoo.org>
Distributed under the terms of the GNU General Public License v2
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
"""
import os
from mirrorselect.mirrorparser3 import MirrorParser3
from sslfetch.connections import Connector
from mirrorselect.version import version
USERAGENT = "Mirrorselect-" + version
class Extractor(object):
"""The Extractor employs a MirrorParser3 object to get a list of valid
mirrors, and then filters them. Only the mirrors that should be tested,
based on user input are saved. They will be in the hosts attribute."""
def __init__(self, list_url, options, output):
self.output = output
self.output.print_info('Using url: %s\n' % list_url)
filters = {}
for opt in ["country", "region"]:
value = getattr(options, opt)
if value is not None:
filters[opt] = value
self.output.print_info('Limiting test to "%s=%s" hosts. \n'
%(opt, value))
for opt in ["ftp", "http"]:
if getattr(options, opt):
filters["proto"] = opt
self.output.print_info('Limiting test to %s hosts. \n' % opt )
self.proxies = {}
for proxy in ['http_proxy', 'https_proxy']:
prox = proxy.split('_')[0]
if options.proxy and prox + ":" in options.proxy:
self.proxies[prox] = options.proxy
elif os.getenv(proxy):
self.proxies[prox] = os.getenv(proxy)
parser = MirrorParser3()
self.hosts = []
self.unfiltered_hosts = self.getlist(parser, list_url)
self.hosts = self.filter_hosts(filters, self.unfiltered_hosts)
self.output.write('Extractor(): fetched mirrors,'
' %s hosts after filtering\n' % len(self.hosts), 2)
@staticmethod
def filter_hosts(filters, hosts):
"""Filter the hosts to the criteria passed in
Return the filtered list
"""
if not len(filters):
return hosts
filtered = []
for uri, data in hosts:
good = True
for f in filters:
if data[f] != filters[f]:
good = False
continue
if good:
filtered.append((uri, data))
return filtered
def getlist(self, parser, url):
"""
Uses the supplied parser to get a list of urls.
Takes a parser object, url, and filering options.
"""
self.output.write('getlist(): fetching ' + url + '\n', 2)
self.output.print_info('Downloading a list of mirrors...\n')
# setup the ssl-fetch ouptut map
connector_output = {
'info':self.output.write,
'debug': self.output.write,
'error': self.output.print_err,
'kwargs-info': {'level': 2},
'kwargs-debug': {'level':2},
'kwargs-error': {'level':0},
}
fetcher = Connector(connector_output, self.proxies, USERAGENT)
success, mirrorlist, timestamp = fetcher.fetch_content(url)
parser.parse(mirrorlist)
if (not mirrorlist) or len(parser.tuples()) == 0:
self.output.print_err('Could not get mirror list. '
'Check your internet connection.')
self.output.write(' Got %d mirrors.\n' % len(parser.tuples()))
return parser.tuples()
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