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Diffstat (limited to 'web/crawler.py')
| -rw-r--r-- | web/crawler.py | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/web/crawler.py b/web/crawler.py deleted file mode 100644 index 47ce97ce..00000000 --- a/web/crawler.py +++ /dev/null @@ -1,167 +0,0 @@ -#! /usr/bin/env python -# -*- coding: utf-8 - - -# jarr - A Web based news aggregator. -# Copyright (C) 2010-2015 Cédric Bonhomme - https://www.JARR-aggregator.org -# -# For more information : https://github.com/JARR-aggregator/JARR/ -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU Affero 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 Affero General Public License for more details. -# -# You should have received a copy of the GNU Affero General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. - -__author__ = "Cedric Bonhomme" -__version__ = "$Revision: 3.3 $" -__date__ = "$Date: 2010/09/02 $" -__revision__ = "$Date: 2015/12/07 $" -__copyright__ = "Copyright (c) Cedric Bonhomme" -__license__ = "AGPLv3" - -import asyncio -import logging -import feedparser -import dateutil.parser -from datetime import datetime -from sqlalchemy import or_ - -import conf -from bootstrap import db -from web.models import User -from web.controllers import FeedController, ArticleController -from web.lib.feed_utils import construct_feed_from -from web.lib.article_utils import construct_article, extract_id - -logger = logging.getLogger(__name__) - -sem = asyncio.Semaphore(5) - -import ssl -try: - _create_unverified_https_context = ssl._create_unverified_context -except AttributeError: - # Legacy Python that doesn't verify HTTPS certificates by default - pass -else: - # Handle target environment that doesn't support HTTPS verification - ssl._create_default_https_context = _create_unverified_https_context - - -async def get(*args, **kwargs): - #kwargs["connector"] = aiohttp.TCPConnector(verify_ssl=False) - try: - #logger.info("Fetching the feed: " + args[0]) - #response = yield from aiohttp.request('GET', *args, **kwargs) - #return (yield from response.read_and_close(decode=False)) - data = feedparser.parse(args[0]) - return data - except Exception as e: - raise e - - -async def parse_feed(user, feed): - """ - Fetch a feed. - """ - a_feed = None - with (await sem): - try: - a_feed = await get(feed.link) - except Exception as e: - feed.last_error = str(e) - finally: - if a_feed is None: - feed.error_count += 1 - db.session.commit() - return - - up_feed = {} - if a_feed['bozo'] == 1: - up_feed['last_error'] = str(a_feed['bozo_exception']) - up_feed['error_count'] = feed.error_count + 1 - db.session.commit() - if a_feed['entries'] == []: - return - - up_feed['last_retrieved'] = datetime.now(dateutil.tz.tzlocal()) - up_feed['error_count'] = 0 - up_feed['last_error'] = "" - - # Feed informations - up_feed.update(construct_feed_from(feed.link, a_feed)) - if feed.title and 'title' in up_feed: - del up_feed['title'] - FeedController().update({'id': feed.id}, up_feed) - - return a_feed['entries'] - - -async def insert_database(user, feed): - - articles = await parse_feed(user, feed) - if None is articles: - return [] - - logger.debug('inserting articles for {}'.format(feed.title)) - - logger.info("Database insertion...") - new_articles = [] - art_contr = ArticleController(user.id) - for article in articles: - exist = art_contr.read(feed_id=feed.id, - **extract_id(article)).count() != 0 - if exist: - logger.debug("Article %r (%r) already in the database.", - article['title'], article['link']) - continue - article = construct_article(article, feed) - try: - new_articles.append(art_contr.create(**article)) - logger.info("New article % (%r) added.", - article['title'], article['link']) - except Exception as e: - logger.exception("Error when inserting article in database:") - continue - return new_articles - - -async def init_process(user, feed): - # Fetch the feed and insert new articles in the database - articles = await insert_database(user, feed) - logger.debug('inserted articles for %s', feed.title) - return articles - - -def retrieve_feed(loop, user, feed_id=None): - """ - Launch the processus. - """ - logger.info("Starting to retrieve feeds.") - - # Get the list of feeds to fetch - user = User.query.filter(User.email == user.email).first() - feeds = [feed for feed in user.feeds if - feed.error_count <= conf.DEFAULT_MAX_ERROR and feed.enabled] - if feed_id is not None: - feeds = [feed for feed in feeds if feed.id == feed_id] - - if feeds == []: - return - - # Launch the process for all the feeds - tasks = [asyncio.ensure_future(init_process(user, feed)) for feed in feeds] - - try: - loop.run_until_complete(asyncio.wait(tasks)) - except Exception: - logger.exception('an error occured') - - logger.info("All articles retrieved. End of the processus.") |