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-rwxr-xr-xsrc/web/utils.py281
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diff --git a/src/web/utils.py b/src/web/utils.py
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-#! /usr/bin/env python
-#-*- coding: utf-8 -*-
-
-# JARR - A Web based news aggregator.
-# Copyright (C) 2010-2016 Cédric Bonhomme - https://www.cedricbonhomme.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: 1.8 $"
-__date__ = "$Date: 2010/12/07 $"
-__revision__ = "$Date: 2016/04/10 $"
-__copyright__ = "Copyright (c) Cedric Bonhomme"
-__license__ = "AGPLv3"
-
-#
-# This file provides functions used for:
-# - import from a JSON file;
-# - generation of tags cloud;
-# - HTML processing.
-#
-
-import re
-import sys
-import glob
-import opml
-import json
-import logging
-import datetime
-import operator
-import urllib
-import subprocess
-import sqlalchemy
-try:
- from urlparse import urlparse, parse_qs, urlunparse
-except:
- from urllib.parse import urlparse, parse_qs, urlunparse, urljoin
-from bs4 import BeautifulSoup
-from collections import Counter
-from contextlib import contextmanager
-from flask import request
-
-import conf
-from bootstrap import db
-from web import controllers
-from web.models import User, Feed, Article
-from web.lib.utils import clear_string
-
-logger = logging.getLogger(__name__)
-
-ALLOWED_EXTENSIONS = set(['xml', 'opml', 'json'])
-
-def is_safe_url(target):
- """
- Ensures that a redirect target will lead to the same server.
- """
- ref_url = urlparse(request.host_url)
- test_url = urlparse(urljoin(request.host_url, target))
- return test_url.scheme in ('http', 'https') and \
- ref_url.netloc == test_url.netloc
-
-def get_redirect_target():
- """
- Looks at various hints to find the redirect target.
- """
- for target in request.args.get('next'), request.referrer:
- if not target:
- continue
- if is_safe_url(target):
- return target
-
-def allowed_file(filename):
- """
- Check if the uploaded file is allowed.
- """
- return '.' in filename and \
- filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS
-
-@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()
-
-def fetch(id, feed_id=None):
- """
- Fetch the feeds in a new processus.
- The "asyncio" crawler is launched with the manager.
- """
- cmd = [sys.executable, conf.BASE_DIR + '/manager.py', 'fetch_asyncio',
- str(id), str(feed_id)]
- return subprocess.Popen(cmd, stdout=subprocess.PIPE)
-
-def history(user_id, year=None, month=None):
- """
- Sort articles by year and month.
- """
- articles_counter = Counter()
- articles = controllers.ArticleController(user_id).read()
- if None != year:
- articles = articles.filter(sqlalchemy.extract('year', Article.date) == year)
- if None != month:
- articles = articles.filter(sqlalchemy.extract('month', Article.date) == month)
- for article in articles.all():
- if None != year:
- articles_counter[article.date.month] += 1
- else:
- articles_counter[article.date.year] += 1
- return articles_counter, articles
-
-def import_opml(email, opml_content):
- """
- Import new feeds from an OPML file.
- """
- user = User.query.filter(User.email == email).first()
- try:
- subscriptions = opml.from_string(opml_content)
- except:
- logger.exception("Parsing OPML file failed:")
- raise
-
- def read(subsubscription, nb=0):
- """
- Parse recursively through the categories and sub-categories.
- """
- for subscription in subsubscription:
- if len(subscription) != 0:
- nb = read(subscription, nb)
- else:
- try:
- title = subscription.text
- except:
- title = ""
- try:
- description = subscription.description
- except:
- description = ""
- try:
- link = subscription.xmlUrl
- except:
- continue
- if None != Feed.query.filter(Feed.user_id == user.id, Feed.link == link).first():
- continue
- try:
- site_link = subscription.htmlUrl
- except:
- site_link = ""
- new_feed = Feed(title=title, description=description,
- link=link, site_link=site_link,
- enabled=True)
- user.feeds.append(new_feed)
- nb += 1
- return nb
- nb = read(subscriptions)
- db.session.commit()
- return nb
-
-def import_json(email, json_content):
- """
- Import an account from a JSON file.
- """
- user = User.query.filter(User.email == email).first()
- json_account = json.loads(json_content)
- nb_feeds, nb_articles = 0, 0
- # Create feeds:
- for feed in json_account["result"]:
- if None != Feed.query.filter(Feed.user_id == user.id,
- Feed.link == feed["link"]).first():
- continue
- new_feed = Feed(title=feed["title"],
- description="",
- link=feed["link"],
- site_link=feed["site_link"],
- created_date=datetime.datetime.
- fromtimestamp(int(feed["created_date"])),
- enabled=feed["enabled"])
- user.feeds.append(new_feed)
- nb_feeds += 1
- db.session.commit()
- # Create articles:
- for feed in json_account["result"]:
- user_feed = Feed.query.filter(Feed.user_id == user.id,
- Feed.link == feed["link"]).first()
- if None != user_feed:
- for article in feed["articles"]:
- if None == Article.query.filter(Article.user_id == user.id,
- Article.feed_id == user_feed.id,
- Article.link == article["link"]).first():
- new_article = Article(link=article["link"],
- title=article["title"],
- content=article["content"],
- readed=article["readed"],
- like=article["like"],
- retrieved_date=datetime.datetime.
- fromtimestamp(int(article["retrieved_date"])),
- date=datetime.datetime.
- fromtimestamp(int(article["date"])),
- user_id=user.id,
- feed_id=user_feed.id)
- user_feed.articles.append(new_article)
- nb_articles += 1
- db.session.commit()
- return nb_feeds, nb_articles
-
-def clean_url(url):
- """
- Remove utm_* parameters
- """
- parsed_url = urlparse(url)
- qd = parse_qs(parsed_url.query, keep_blank_values=True)
- filtered = dict((k, v) for k, v in qd.items()
- if not k.startswith('utm_'))
- return urlunparse([
- parsed_url.scheme,
- parsed_url.netloc,
- urllib.parse.quote(urllib.parse.unquote(parsed_url.path)),
- parsed_url.params,
- urllib.parse.urlencode(filtered, doseq=True),
- parsed_url.fragment
- ]).rstrip('=')
-
-def load_stop_words():
- """
- Load the stop words and return them in a list.
- """
- stop_words_lists = glob.glob('./JARR/var/stop_words/*.txt')
- stop_words = []
-
- for stop_wods_list in stop_words_lists:
- with opened_w_error(stop_wods_list, "r") as (stop_wods_file, err):
- if err:
- stop_words = []
- else:
- stop_words += stop_wods_file.read().split(";")
- return stop_words
-
-def top_words(articles, n=10, size=5):
- """
- Return the n most frequent words in a list.
- """
- stop_words = load_stop_words()
- words = Counter()
- wordre = re.compile(r'\b\w{%s,}\b' % size, re.I)
- for article in articles:
- for word in [elem.lower() for elem in
- wordre.findall(clear_string(article.content)) \
- if elem.lower() not in stop_words]:
- words[word] += 1
- return words.most_common(n)
-
-def tag_cloud(tags):
- """
- Generates a tags cloud.
- """
- tags.sort(key=operator.itemgetter(0))
- return '\n'.join([('<font size=%d><a href="/search?query=%s" title="Count: %s">%s</a></font>' % \
- (min(1 + count * 7 / max([tag[1] for tag in tags]), 7), word, format(count, ',d'), word)) \
- for (word, count) in tags])
-
-if __name__ == "__main__":
- import_opml("root@jarr.localhost", "./var/feeds_test.opml")
- #import_opml("root@jarr.localhost", "./var/JARR.opml")
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