wikispider added

This commit is contained in:
2023-04-13 09:44:55 +02:00
parent ef6074eaa9
commit e757290649
3 changed files with 163 additions and 3 deletions

View File

@@ -31,8 +31,8 @@ ROBOTSTXT_OBEY = True
#CONCURRENT_REQUESTS_PER_IP = 16
# Disable cookies (enabled by default)
#COOKIES_ENABLED = False
COOKIES_ENABLED = True
COOKIES_DEBUG = False
# Disable Telnet Console (enabled by default)
#TELNETCONSOLE_ENABLED = False

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@@ -0,0 +1,160 @@
from scrapy.spiders import SitemapSpider, CrawlSpider, Rule, Spider
from scrapy.linkextractors import LinkExtractor
import scrapy
import bs4
import re
import getpass
import urllib.parse
from html_scrapy.elastic_publish import push_to_index, check_elastic_document
from furl import furl
from scrapy import signals
def publish(response: scrapy.http.response.html.HtmlResponse):
print("Response typ: %s, obj: %s" % (type(response), response))
with open("scraped_urls.log", "a+") as f:
f.write(response.url + "\n")
class FetWikiSpider(SitemapSpider):
name = "fetwiki_spider"
allowed_domains = ["wiki.fet.at"]
sitemap_urls = ["https://wiki.fet.at/sitemap/sitemap-wiki-NS_0-0.xml"]
sitemap_rules = [("/", "parse_page")]
http_user = "andis"
http_pass = getpass.getpass("Passwort von FET USer andis: ")
pages = {}
http_auth_domain = "wiki.fet.at"
# rules = (
# Rule(LinkExtractor(allow=('documents', )), callback='parse_document', process_links='fix_document_links'),
# Rule(LinkExtractor(allow=(r"themengruppen/\d+$", )), callback='parse_themengruppe'),
# )
# start_urls = ['https://legacy.fet.at/themengruppen/15']
# custom_settings = {
# 'DEPTH_LIMIT': '1',
# }
@classmethod
def from_crawler(cls, crawler, *args, **kwargs):
spider = super(FetWikiSpider, cls).from_crawler(crawler, *args, **kwargs)
print("connect signal")
crawler.signals.connect(spider.closed_handler, signal=signals.spider_closed)
return spider
def closed_handler(self, spider,reason):
print("closing !! Handler")
print(reason)
print("found %d elements in pages" % len(spider.pages))
print("found %d elements in pages" % len(self.pages))
for id,p in spider.pages.items():
try:
output = check_elastic_document(p)
print(f"pushing: %s" % output["url"])
push_to_index(output["url"], output)
except AttributeError as e:
print(e)
print(f"Error occured at id: --%s--" %id)
# do stuff here
def callback_login_done(self, response):
html = bs4.BeautifulSoup(response.body, "lxml")
h = html.find("h1", {"id": "firstHeading"}).text
print(f"\nlogin callback done %s\n" % h)
if h == "FET-Wiki":
for url in self.sitemap_urls:
yield scrapy.Request( url, self._parse_sitemap)
else:
h = html.find("div", {"class": "errorbox"})
if h:
print(f"\nerrorbox %s" % h.text)
return
def callback_login(self, response):
print(f"\nStart Login:\n")
html = bs4.BeautifulSoup(response.body, "lxml")
token = html.find("input", {"name": "wpLoginToken"})["value"]
login_url = "https://wiki.fet.at/index.php?title=Spezial:Anmelden"
formdata = {
"wpName": self.http_user,
"wpPassword": self.http_pass,
"domain": "fet.htu.tuwien.ac.at",
"wpLoginToken": token,
"authAction": "login",
"pluggableauthlogin": "Anmelden",
"title": "Spezial:Anmelden"
}
yield scrapy.FormRequest(
login_url,
formdata=formdata,
#meta={"cookiejar": response.meta["cookiejar"]},
callback=self.callback_login_done,
)
def start_requests(self):
login_url = "https://wiki.fet.at/index.php?title=Spezial:Anmelden"
#self.cookie_jar = CookieJar()
yield scrapy.Request(
"https://wiki.fet.at/index.php?title=Spezial:Anmelden",
callback=self.callback_login,
)
print(f"\nLogin done Processing Sitemap:\n")
def parse_history(self, response, id):
print(f"\n\n Parsing: %s\n" % response.url)
html = bs4.BeautifulSoup(response.body, "lxml")
ul = html.find("ul", {"id": "pagehistory"}).find_all("li")
last = ul[0].find("a", {"class": "mw-changeslist-date"}).text
created = ul[-1].find("a", {"class": "mw-changeslist-date"}).text
d = self.pages.get(id,{})
d["published"]= created
d["updated_at"]= last
self.pages[id]=d
return
def parse_page(self, response):
print(f"\n\n Parsing: %s\n" % response.url)
html = bs4.BeautifulSoup(response.body, "lxml")
title = html.find("h1", {"id": "firstHeading"}).text.strip()
if title == "Anmeldung erforderlich":
print("login erforderlich")
yield scrapy.Request(
"https://wiki.fet.at/index.php?title=Spezial:Anmelden",
callback=self.callback_login,
)
print(f"Exiting Title : %s\n\n" % title)
return
print(f"Title : %s\n\n" % title)
h = html.find("link", {"rel": "alternate"})
if h:
hist_url = furl(
h["href"]
) # /index.php?title=ET-Crashkurs&action=history
hist_url.host = "wiki.fet.at"
hist_url.args["action"] = "history"
hist_url.scheme = "https"
id = hist_url.args["title"]
yield scrapy.Request(
hist_url.url,
self.parse_history,
cb_kwargs={"id": hist_url.args["title"]},
)
else:
print("No Histoy for this page: %s" % id)
d = self.pages.get(id, {})
d["title"] = title
d["raw"] = html.find("div", {"id": "bodyContent"})
d["text"] = d["raw"].get_text(" ")
d["url"] = re.search(r"http[s]?://(.+)$", response.url).group(1)
self.pages[id] = d
return None

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@@ -1,3 +1,3 @@
beautifulsoup4
scrapy
furl