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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: 3.8 $"
__date__ = "$Date: 2010/01/29 $"
__revision__ = "$Date: 2013/01/12 $"
__copyright__ = "Copyright (c) Cedric Bonhomme"
__license__ = "GPLv3"
#
# This file contains the "Root" class which describes
# all pages (views) of pyAggr3g470r. These pages are:
# - main page;
# - management;
# - history;
# - favorites;
# - notifications;
# - unread;
# - feed summary.
# Templates are described in ./templates with the Mako
# template library.
#
import os
import re
import datetime
import cherrypy
from mako.template import Template
from mako.lookup import TemplateLookup
lookup = TemplateLookup(directories=['templates'])
import conf
import utils
import export
import mongodb
import feedgetter
import auth
#from qrcode.pyqrnative.PyQRNative import QRCode, QRErrorCorrectLevel, CodeOverflowException
#from qrcode import qr
def error_404(status, message, traceback, version):
"""
Display an error if the page does not exist.
"""
message = "<p>Error %s - This page does not exist.</p>" % status
tmpl = lookup.get_template("error.html")
return tmpl.render(message=message)
def handle_error():
"""
Handle different type of errors.
"""
message = "<p>Sorry, an error occured.</p>"
cherrypy.response.status = 500
cherrypy.response.body = [message]
class RestrictedArea(object):
"""
All methods in this controller (and subcontrollers) is
open only to members of the admin group
"""
_cp_config = {
'auth.auth.require': [auth.member_of('admin')]
}
@cherrypy.expose
def index(self):
message = "<p>This is the admin only area.</p>"
tmpl = lookup.get_template("error.html")
return tmpl.render(message=message)
class pyAggr3g470r(object):
"""
Main class.
All pages of pyAggr3g470r are described in this class.
"""
_cp_config = {'request.error_response': handle_error, \
'tools.sessions.on': True, \
'tools.auth.on': True}
def __init__(self):
"""
"""
self.auth = auth.AuthController()
restricted = RestrictedArea()
self.mongo = mongodb.Articles(conf.MONGODB_ADDRESS, conf.MONGODB_PORT, \
conf.MONGODB_DBNAME, conf.MONGODB_USER, conf.MONGODB_PASSWORD)
@auth.require()
def index(self):
"""
Main page containing the list of feeds and articles.
"""
feeds = self.mongo.get_all_feeds()
nb_unread_articles = self.mongo.nb_unread_articles()
nb_favorites = self.mongo.nb_favorites()
nb_mail_notifications = self.mongo.nb_mail_notifications()
tmpl = lookup.get_template("index.html")
return tmpl.render(feeds=feeds, nb_feeds=len(feeds), mongo=self.mongo, \
nb_favorites=nb_favorites, nb_unread_articles=nb_unread_articles, \
nb_mail_notifications=nb_mail_notifications, header_text=nb_unread_articles)
index.exposed = True
@auth.require()
def management(self):
"""
Management page.
Allows adding and deleting feeds. Export functions of the MongoDB data base
and display some statistics.
"""
feeds = self.mongo.get_all_feeds()
nb_mail_notifications = self.mongo.nb_mail_notifications()
nb_favorites = self.mongo.nb_favorites()
nb_articles = format(self.mongo.nb_articles(), ",d")
nb_unread_articles = format(self.mongo.nb_unread_articles(), ",d")
tmpl = lookup.get_template("management.html")
return tmpl.render(feeds=feeds, nb_mail_notifications=nb_mail_notifications, \
nb_favorites=nb_favorites, nb_articles=nb_articles, \
nb_unread_articles=nb_unread_articles)
management.exposed = True
@auth.require()
def statistics(self, word_size=6):
"""
More advanced statistics.
"""
articles = self.mongo.get_articles()
top_words = utils.top_words(articles, n=50, size=int(word_size))
tag_cloud = utils.tag_cloud(top_words)
tmpl = lookup.get_template("statistics.html")
return tmpl.render(articles=articles, word_size=word_size, tag_cloud=tag_cloud)
statistics.exposed = True
@auth.require()
def search(self, query=None):
"""
Simply search for the string 'query'
in the description of the article.
"""
param, _, value = query.partition(':')
feed_id = None
if param == "Feed":
feed_id, _, query = value.partition(':')
search_result = self.mongo.full_search(param)
tmpl = lookup.get_template("search.html")
return tmpl.render(search_result=search_result, query=query, feed_id=feed_id, mongo=self.mongo)
search.exposed = True
@auth.require()
def fetch(self, param=None):
"""
Fetch all feeds.
"""
feed_link = None
if None != param:
# Fetch only the feed specified in parameter
feed_link = self.mongo.get_feed(param)["feed_link"]
feed_getter = feedgetter.FeedGetter()
feed_getter.retrieve_feed(feed_url=feed_link)
return self.index()
fetch.exposed = True
@auth.require()
def article(self, param):
"""
Display the article in parameter in a new Web page.
"""
try:
feed_id, article_id = param.split(':')
feed = self.mongo.get_feed(feed_id)
articles = self.mongo.get_articles(feed_id)
article = self.mongo.get_articles(feed_id, article_id)
except:
return self.error("<p>Bad URL. This article do not exists.</p>")
if article["article_readed"] == False:
# if the current article is not yet readed, update the database
self.mark_as_read("Article:"+article["article_id"]+":"+feed["feed_id"])
# Description (full content) of the article
description = article["article_content"]
if description:
p = re.compile(r'<code><')
q = re.compile(r'></code>')
description = p.sub('<code><', description)
description = q.sub('></code>', description)
description = description + "\n<br /><br /><br />"
else:
description += "No description available.\n<br /><br /><br />"
"""
# Generation of the QR Code for the current article
try:
os.makedirs("./var/qrcode/")
except OSError:
pass
if not os.path.isfile("./var/qrcode/" + article_id + ".png"):
# QR Code generation
try:
f = qr.QRUrl(url = article["article_link"])
f.make()
except:
f = qr.QRUrl(url = "URL too long.")
f.make()
f.save("./var/qrcode/"+article_id+".png")
"""
# Previous and following articles
previous, following = None, None
liste = self.mongo.get_articles(feed_id)
for current_article in self.mongo.get_articles(feed_id):
next(articles)
if current_article["article_id"] == article_id:
break
following = current_article
if following is None:
following = liste[liste.count()-1]
try:
previous = next(articles)
except StopIteration:
previous = liste[0]
tmpl = lookup.get_template("article.html")
return tmpl.render(header_text=article["article_title"], article=article, previous=previous, following=following, \
diaspora=conf.DIASPORA_POD, feed=feed, description=description)
article.exposed = True
@auth.require()
def feed(self, feed_id, word_size=6):
"""
This page gives summary informations about a feed (number of articles,
unread articles, average activity, tag cloud, e-mail notification and
favourite articles for the current feed.
"""
try:
feed = self.mongo.get_feed(feed_id)
articles = self.mongo.get_articles(feed_id, limit=10)
nb_articles_feed = self.mongo.nb_articles(feed_id)
nb_articles_total = self.mongo.nb_articles()
nb_unread_articles_feed = self.mongo.nb_unread_articles(feed_id)
favorites = self.mongo.get_favorites(feed_id)
nb_favorites = self.mongo.nb_favorites(feed_id)
except KeyError:
return self.error("<p>This feed do not exists.</p>")
mail_notification_enabled = conf.MAIL_ENABLED
if articles != []:
today = datetime.datetime.now()
last_article = articles[0]["article_date"]
first_article = articles[self.mongo.nb_articles(feed_id)-2]["article_date"]
delta = last_article - first_article
elapsed = today - last_article
average = round(nb_articles_feed / abs(delta.days), 2)
top_words = utils.top_words(articles = self.mongo.get_articles(feed_id), n=50, size=int(word_size))
tag_cloud = utils.tag_cloud(top_words)
tmpl = lookup.get_template("feed.html")
return tmpl.render(feed=feed, articles=articles, favorites=favorites, \
nb_articles_feed=nb_articles_feed, nb_articles_total=nb_articles_total, nb_unread_articles_feed=nb_unread_articles_feed, \
nb_favorites = nb_favorites, first_post_date=first_article, end_post_date=last_article, \
average=average, delta=delta, elapsed=elapsed, \
tag_cloud=tag_cloud, word_size=word_size, mail_to=conf.mail_to, mail_notification_enabled=mail_notification_enabled)
feed.exposed = True
@auth.require()
def articles(self, feed_id):
"""
This page displays all articles of a feed.
"""
try:
feed = self.mongo.get_feed(feed_id)
articles = self.mongo.get_articles(feed_id)
except KeyError:
return self.error("<p>This feed do not exists.</p>")
tmpl = lookup.get_template("articles.html")
return tmpl.render(articles=articles, feed=feed)
articles.exposed = True
@auth.require()
def unread(self, feed_id=""):
"""
This page displays all unread articles of a feed.
"""
feeds = self.mongo.get_all_feeds()
tmpl = lookup.get_template("unread.html")
return tmpl.render(feeds=feeds, feed_id=feed_id, mongo=self.mongo)
unread.exposed = True
@auth.require()
def history(self, query="all", m=""):
"""
This page enables to browse articles chronologically.
"""
feeds = self.mongo.get_all_feeds()
tmpl = lookup.get_template("history.html")
return tmpl.render(feeds=feeds, mongo=self.mongo, query=query, m=m)
history.exposed = True
@auth.require()
def plain_text(self, target):
"""
Display an article in plain text (without HTML tags).
"""
try:
feed_id, article_id = target.split(':')
feed = self.mongo.get_feed(feed_id)
article = self.mongo.get_articles(feed_id, article_id)
except:
return self.error("<p>Bad URL. This article do not exists.</p>")
description = utils.clear_string(article["article_content"])
if not description:
description = "Unvailable"
tmpl = lookup.get_template("plain_text.html")
return tmpl.render(feed_title=feed["feed_title"], \
article_title=article["article_title"], description = description)
plain_text.exposed = True
@auth.require()
def error(self, message):
"""
Display a message (bad feed id, bad article id, etc.)
"""
tmpl = lookup.get_template("error.html")
return tmpl.render(message=message)
error.exposed = True
@auth.require()
def mark_as_read(self, target=""):
"""
Mark one (or more) article(s) as read by setting the value of the field
'article_readed' of the MongoDB database to 'True'.
"""
param, _, identifiant = target.partition(':')
# Mark all articles as read.
if param == "":
self.mongo.mark_as_read(True, None, None)
# Mark all articles from a feed as read.
elif param == "Feed" or param == "Feed_FromMainPage":
self.mongo.mark_as_read(True, identifiant, None)
# Mark an article as read.
elif param == "Article":
self.mongo.mark_as_read(True, identifiant.split(':')[1], identifiant.split(':')[0])
return self.index()
mark_as_read.exposed = True
@auth.require()
def notifications(self):
"""
List all active e-mail notifications.
"""
feeds = self.mongo.get_all_feeds(condition=("mail",True))
tmpl = lookup.get_template("notifications.html")
return tmpl.render(feeds=feeds, mail_to=conf.mail_to)
notifications.exposed = True
@auth.require()
def mail_notification(self, param):
"""
Enable or disable to notifications of news for a feed.
"""
try:
action, feed_id = param.split(':')
except:
return self.error("<p>Bad URL. This feed do not exists.</p>")
return self.index()
mail_notification.exposed = True
@auth.require()
def like(self, param):
"""
Mark or unmark an article as favorites.
"""
try:
like, feed_id, article_id = param.split(':')
articles = self.mongo.get_articles(feed_id, article_id)
except:
return self.error("<p>Bad URL. This article do not exists.</p>")
self.mongo.like_article("1"==like, feed_id, article_id)
return self.article(feed_id+":"+article_id)
like.exposed = True
@auth.require()
def favorites(self):
"""
List of favorites articles
"""
feeds = self.mongo.get_all_feeds()
articles = {}
for feed in feeds:
articles[feed["feed_id"]] = self.mongo.get_favorites(feed["feed_id"])
tmpl = lookup.get_template("favorites.html")
return tmpl.render(feeds=feeds, \
articles=articles)
favorites.exposed = True
@auth.require()
def inactives(self, nb_days=365):
"""
List of favorites articles
"""
feeds = self.mongo.get_all_feeds()
today = datetime.datetime.now()
inactives = []
for feed in feeds:
more_recent_article = self.mongo.get_articles(feed["feed_id"], limit=1)
last_post = next(more_recent_article)["article_date"]
elapsed = today - last_post
if elapsed > datetime.timedelta(days=int(nb_days)):
inactives.append((feed, elapsed))
tmpl = lookup.get_template("inactives.html")
return tmpl.render(inactives=inactives, nb_days=int(nb_days))
inactives.exposed = True
@auth.require()
def add_feed(self, url):
"""
Add a new feed with the URL of a page.
"""
# search the feed in the HTML page with BeautifulSoup
feed_url = utils.search_feed(url)
if feed_url is None:
return self.error("<p>Impossible to find a feed at this URL.</p>")
# if a feed exists
else:
result = utils.add_feed(feed_url)
# if the feed is not in the file feed.lst
if result is False:
message = "<p>You are already following this feed!</p>"
else:
message = """<p>Feed added. You can now <a href="/fetch/">fetch your feeds</a>.</p>"""
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message=message)
add_feed.exposed = True
@auth.require()
def remove_feed(self, feed_id):
"""
Remove a feed from the file feed.lst and from the MongoDB database.
"""
feed = self.mongo.get_feed(feed_id)
self.mongo.delete_feed(feed_id)
utils.remove_feed(feed["feed_link"])
message = """<p>All articles from the feed <i>%s</i> are now removed from the base.</p>""" % (feed["feed_title"],)
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message=message)
remove_feed.exposed = True
@auth.require()
def change_feed_url(self, feed_id, old_feed_url, new_feed_url):
"""
Enables to change the URL of a feed already present in the database.
"""
self.mongo.update_feed(feed_id, {"feed_link":new_feed_url})
utils.change_feed_url(old_feed_url, new_feed_url)
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message="<p>The URL of the feed has been changed.</p>")
change_feed_url.exposed = True
@auth.require()
def change_feed_name(self, feed_id, new_feed_name):
"""
Enables to change the name of a feed.
"""
self.mongo.update_feed(feed_id, {"feed_title":new_feed_name})
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message="<p>The name of the feed has been changed.</p>")
change_feed_name.exposed = True
@auth.require()
def change_feed_logo(self, feed_id, new_feed_logo):
"""
Enables to change the name of a feed.
"""
self.mongo.update_feed(feed_id, {"feed_image":new_feed_logo})
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message="<p>The logo of the feed has been changed.</p>")
change_feed_logo.exposed = True
@auth.require()
def change_username(self, new_username):
"""
Enables to change the username of a user.
"""
result = auth.change_username(self.auth.username, new_username)
if result:
self.auth.username = new_username
message = "<p>Your username has been changed.</p>"
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message=message)
else:
return self.error("<p>Impossible to change the username.</p>")
change_username.exposed = True
@auth.require()
def change_password(self, new_password):
"""
Enables to change the password of a user.
"""
result = auth.change_password(self.auth.username, new_password)
if result:
message = "<p>Your password has been changed.</p>"
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message=message)
else:
return self.error("<p>Impossible to change the password.</p>")
change_password.exposed = True
@auth.require()
def delete_article(self, param):
"""
Delete an article.
"""
try:
feed_id, article_id = param.split(':')
self.mongo.delete_article(feed_id, article_id)
except:
return self.error("<p>Bad URL. This article do not exists.</p>")
return self.index()
delete_article.exposed = True
@auth.require()
def logout(self):
"""
Close the session.
"""
return self.auth.logout()
logout.exposed = True
@auth.require()
def drop_base(self):
"""
Delete all articles.
"""
self.mongo.drop_database()
return self.index()
drop_base.exposed = True
@auth.require()
def export(self, export_method):
"""
Export articles currently loaded from the MongoDB database with
the appropriate function of the 'export' module.
"""
getattr(export, export_method)(self.mongo)
try:
getattr(export, export_method)(self.mongo)
except Exception as e:
return self.error(e)
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message="<p>Export successfully terminated.<br />Check the folder: <b>./pyaggr3g470r/source/var/export/</b>.</p>")
export.exposed = True
@auth.require()
def epub(self, param):
"""
Export an article to EPUB.
"""
try:
from epub import ez_epub
except Exception as e:
return self.error(e)
try:
feed_id, article_id = param.split(':')
except:
return self.error("Bad URL.")
try:
feed_id, article_id = param.split(':')
feed = self.mongo.get_feed(feed_id)
articles = self.mongo.get_articles(feed_id)
article = self.mongo.get_articles(feed_id, article_id)
except:
self.error("<p>This article do not exists.</p>")
try:
folder = conf.path + "/var/export/epub/"
os.makedirs(folder)
except OSError:
# directories already exists (not a problem)
pass
section = ez_epub.Section()
section.title = article["article_title"].decode('utf-8')
section.paragraphs = [utils.clear_string(article["article_content"])]
ez_epub.makeBook(article["article_title"], [feed["feed_title"]], [section], \
os.path.normpath(folder) + "article.epub", lang='en-US', cover=None)
return self.article(param)
epub.exposed = True
if __name__ == '__main__':
# Point of entry in execution mode
root = pyAggr3g470r()
root.favicon_ico = cherrypy.tools.staticfile.handler(filename=os.path.join(conf.path + "/img/favicon.png"))
cherrypy.config.update({'error_page.404': error_404})
cherrypy.quickstart(root, "/" ,config=conf.path + "/cfg/cherrypy.cfg")
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