sitemap-crawler/main.py
2022-03-29 19:54:23 -06:00

124 lines
3.3 KiB
Python

import datetime
import os
import bs4
from urllib.request import Request, urlopen
from os.path import exists
from shutil import move
def spider(prefix, domain, exclude):
return spider_rec(dict(), prefix, domain, "/", exclude)
def spider_rec(links, prefix, domain, postfix, exclude):
links[postfix] = 1
req = Request(prefix + domain + postfix)
html_page = urlopen(req)
soup = bs4.BeautifulSoup(html_page, "lxml")
for link in soup.findAll('a'):
href = link.get('href')
if "mailto:" not in href and (domain in href or href[0] == '/'):
if href not in links.keys():
found = False
for d in exclude:
if d in href:
found = True
break
if found:
continue
href = href.replace(" ", "%20")
if domain in href:
spider_rec(links, "", "", href, exclude)
else:
spider_rec(links, prefix, domain, href, exclude)
else:
links[href] += 1
return links
def cmp(p1, p2):
with open(p1, 'r') as f1:
with open(p2, 'r') as f2:
l1 = f1.readlines()
l2 = f2.readlines()
not_matched = []
if len(l1) == len(l2):
for i in range(len(l1)):
if l1[i] != l2[i]:
if "<lastmod>" not in l1[i]:
return False
else:
return False
return True
def main():
conf = []
with open('crawl.conf', 'r') as file:
for line in file.readlines():
if line[0] != '#':
line = line.replace("\n", "")
line = line.replace("\r", "")
conf.append(line)
domain = conf[0]
prefix = conf[1]
path = conf[2]
ignores = conf[3::]
links = spider(prefix, domain, ignores)
date = datetime.datetime.utcnow()
existed = exists(path)
oldpath = path
if existed:
path = "newmap.xml"
out = open(path, 'w')
out.write("<!--\n")
out.write("\tSitemap generator by Ben Morgan - www.benrmorgan.com\n")
out.write("-->\n")
out.write(
"<urlset xsi:schemaLocation=\"http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd\">\n")
sorted_links = dict(sorted(links.items(), key=lambda item: item[1], reverse=True))
ordered = []
level = 0
old_num = sorted_links[list(sorted_links.keys())[0]]
for l in sorted_links.keys():
if sorted_links[l] != old_num:
level += 1
old_num = sorted_links[l]
link = l
if link[0] == '/':
link = prefix + domain + link
ordered.append((link, str(float(str(round(pow(0.8, level), 2))))))
for l in ordered:
out.write("\t<url>\n")
out.write("\t\t<loc>" + l[0] + "</loc>\n")
out.write("\t\t<lastmod>" + date.strftime("%Y-%m-%dT%H:%M:%S+00:00") + "</lastmod>\n")
out.write("\t\t<priority>" + str(l[1]) + "</priority>\n")
out.write("\t</url>\n")
out.write("</urlset>\n")
out.close()
if existed and not cmp(oldpath, path):
move(oldpath, oldpath + "-old")
move(path, oldpath)
else:
os.remove(path)
main()