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# sitemap.py - plugin to generate a sitemap
#
# Copyright (C) 1998, 1999 Albert Hopkins (marduk)
# Copyright (C) 2002 Mike W. Meyer
# Copyright (C) 2005, 2006, 2007, 2011 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 site map of the checked site."""
__title__ = 'site map'
__author__ = 'Arthur de Jong'
__outputfile__ = 'index.html'
from webcheck import config
from webcheck.db import Session, Link
from webcheck.output import render
def get_children(link, explored):
"""Determine the page children of this link, combining the children of
embedded items and following redirects."""
# get all internal children
qry = link.children.filter(Link.is_internal == True)
if link.depth:
qry = qry.filter((Link.depth > link.depth) | (Link.depth == None))
# follow redirects and return all direct children
for child in (x.follow_link() for x in qry):
if child and child.is_page and child.is_internal and child.id not in explored:
explored.add(child.id)
yield child
# add embedded element's pagechildren (think frames)
for embed in link.embedded.filter(Link.is_internal == True).filter(Link.is_page == True):
if embed.id not in explored and \
(embed.depth == None or embed.depth > link.depth):
for child in get_children(embed, explored):
yield child
def explore(links, explored=None, depth=0):
"""Recursively do a breadth first traversal of the graph of links on the
site."""
if explored is None:
explored = set(x.id for x in links)
for link in links:
children = []
if depth <= config.REPORT_SITEMAP_LEVEL:
children = list(get_children(link, explored))
children.sort(lambda a, b: cmp(a.url, b.url))
if children:
yield link, explore(children, explored, depth + 1)
else:
yield link, None
def generate(crawler):
"""Output the sitemap."""
session = Session()
links = [session.query(Link).filter_by(url=url).first()
for url in crawler.base_urls]
links = explore(links)
render(__outputfile__, crawler=crawler, title=__title__,
links=links)
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