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#! /usr/bin/env python
#-*- coding: utf-8 -*-
# pyAggr3g470r - A Web based news aggregator.
# Copyright (C) 2010-2013 Cédric Bonhomme - http://cedricbonhomme.org/
#
# For more information : http://bitbucket.org/cedricbonhomme/pyaggr3g470r/
#
# 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 3 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, see <http://www.gnu.org/licenses/>
__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 1.8 $"
__date__ = "$Date: 2010/09/02 $"
__revision__ = "$Date: 2013/08/15 $"
__copyright__ = "Copyright (c) Cedric Bonhomme"
__license__ = "GPLv3"
import hashlib
import threading
import feedparser
from BeautifulSoup import BeautifulSoup
from datetime import datetime
from contextlib import contextmanager
import models
import conf
import search
import utils
import log
pyaggr3g470r_log = log.Log()
list_of_threads = []
@contextmanager
def opened_w_error(filename, mode="r"):
try:
f = open(filename, mode)
except IOError as err:
yield None, err
else:
try:
yield f, None
finally:
f.close()
class FeedGetter(object):
"""
This class is in charge of retrieving feeds listed in ./var/feed.lst.
This class uses feedparser module from Mark Pilgrim.
For each feed a new thread is launched.
"""
def __init__(self):
"""
Initializes the database connection.
"""
#feedparser.USER_AGENT = conf.USER_AGENT
feedparser.USER_AGENT = "pyAggr3g470r"
def retrieve_feed(self):
"""
Parse the file 'feeds.lst' and launch a thread for each RSS feed.
"""
feeds = models.Feed.objects()
for feed in feeds:
try:
# launch a new thread for the RSS feed
thread = threading.Thread(None, self.process, \
None, (feed,))
thread.start()
list_of_threads.append(thread)
except:
pass
# wait for all threads are done
for th in list_of_threads:
th.join()
def process(self, feed):
"""
Comment
"""
#a_feed = feedparser.parse(feed_link, handlers = [self.proxy])
a_feed = feedparser.parse(feed.link)
if a_feed['entries'] == []:
return
articles = []
for article in a_feed['entries']:
exist = models.Article.objects(link=article.link).first()
if exist != None:
print "Already in database"
continue
description = ""
article_title = ""
try:
# article content
description = article.content[0].value
except AttributeError:
try:
# article description
description = article.description
except Exception:
description = ""
try:
description = BeautifulSoup(description, "html.parser").decode()
article_title = BeautifulSoup(article.title, "html.parser").decode()
except Exception as E:
pyaggr3g470r_log.error("Problem when sanitizing the content of the feed: " + feed.link)
article_title = article.title
try:
post_date = datetime(*article.published_parsed[:6])
except:
post_date = datetime(*article.updated_parsed[:6])
article = models.Article(post_date, article.link, article_title, description, False, False)
article.save()
articles.append(article)
"""
if self.articles.get_articles(feed_id, article_id) == []:
# add the article to the Whoosh index
try:
search.add_to_index([article], feed)
except:
print("Whoosh error.")
pyaggr3g470r_log.error("Whoosh error.")
continue
if conf.MAIL_ENABLED and feed["mail"]:
# if subscribed to the feed
threading.Thread(None, utils.send_mail, None, (conf.mail_from, conf.mail_to, \
a_feed.feed.title, \
article_title, description)).start()
"""
feed.articles.extend(articles)
feed.articles = sorted(feed.articles, key=lambda t: t.date, reverse=False)
feed.save()
if __name__ == "__main__":
# Point of entry in execution mode
feed_getter = FeedGetter()
# Retrieve all feeds
feed_getter.retrieve_feed()
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