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# badlinks.py - plugin to list bad links
#
# Copyright (C) 1998, 1999 Albert Hopkins (marduk)
# Copyright (C) 2002 Mike W. Meyer
# Copyright (C) 2005 Arthur de Jong
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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
#
# The files produced as output from the software do not automatically fall
# under the copyright of the software, unless explicitly stated otherwise.
"""Present a listing of links that point to non-existent pages."""
__title__ = 'bad links'
__author__ = 'Arthur de Jong'
import config
import plugins
def generate(fp,site):
"""Present the list of bad links to the given file descriptor."""
# find all links with link problems
links = filter(lambda a: len(a.linkproblems)>0, site.linkMap.values())
# sort list
links.sort(lambda a, b: cmp(a.url, b.url))
# present results
if not links:
fp.write(
' <p class="description">\n'
' There were no problems retrieving links from the website.\n'
' </p>\n'
' <ol>\n' )
return
fp.write(
' <p class="description">\n'
' These links could not be retrieved during the crawling of the website.\n'
' </p>\n'
' <ol>\n' )
for link in links:
# list the link
fp.write(
' <li>\n'
' %(badurl)s\n'
' <ul class="problems">\n'
% { 'badurl': plugins.make_link(link,link.url) })
# list the problems
for problem in link.linkproblems:
fp.write(
' <li>%(problem)s</li>\n'
% { 'problem': plugins.escape(problem) })
fp.write(
' </ul>\n')
# present a list of parents
link.parents.sort()
plugins.print_parents(fp,link,' ')
# add a reference to the problem map
for problem in link.linkproblems:
for parent in link.parents:
parent.add_pageproblem("bad link: " + link.url + ": " + problem)
fp.write(
' </li>\n')
fp.write(
' </ol>\n' )
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