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|
#! /usr/bin/env python
#-*- coding: utf-8 -*-
# pyAggr3g470r - A Web based news aggregator.
# Copyright (C) 2010-2012 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: 3.6 $"
__date__ = "$Date: 2010/01/29 $"
__revision__ = "$Date: 2012/12/04 $"
__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 calendar
import cherrypy
from mako.template import Template
from mako.lookup import TemplateLookup
lookup = TemplateLookup(directories=['templates'])
from collections import Counter
import datetime
import conf
import utils
import export
import mongodb
import feedgetter
from auth import AuthController, require, member_of, name_is
#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.
"""
html = htmlheader()
html += htmlnav
html += "<br /><br />Error %s - This page does not exist." % status
html += "\n<hr />\n" + htmlfooter
return html
def handle_error():
"""
Handle different type of errors.
"""
html = htmlheader()
html += htmlnav
html += "<br /><br />Sorry, an error occured"
html += "\n<hr />\n" + htmlfooter
cherrypy.response.status = 500
cherrypy.response.body = [html]
def htmlheader(text=""):
"""
Return the header of the HTML page with the number of unread articles
in the 'title' HTML tag..
"""
return '<!DOCTYPE html>\n' + \
'<head>' + \
'\n\t<title>'+ text +' - pyAggr3g470r - News aggregator</title>\n' + \
'\t<link rel="stylesheet" type="text/css" href="/css/style.css" />' + \
'\n\t<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>\n' + \
'\n\t<script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script>\n' + \
'</head>\n'
htmlfooter = '<p>This software is under GPLv3 license. You are welcome to copy, modify or' + \
' redistribute the source code according to the' + \
' <a href="http://www.gnu.org/licenses/gpl-3.0.txt">GPLv3</a> license.</p></div>\n' + \
'</body>\n</html>'
htmlnav = '<body>\n<h1><div class="right innerlogo"><a href="/"><img src="/img/tuxrss.png"' + \
""" title="What's new today?"/></a>""" + \
'</div><a name="top"><a href="/">pyAggr3g470r - News aggregator</a></a></h1>\n'
class RestrictedArea(object):
"""
All methods in this controller (and subcontrollers) is
open only to members of the admin group
"""
_cp_config = {
'auth.require': [member_of('admin')]
}
@cherrypy.expose
def index(self):
return """This is the admin only area."""
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 = AuthController()
restricted = RestrictedArea()
self.mongo = mongodb.Articles(conf.MONGODB_ADDRESS, conf.MONGODB_PORT, \
conf.MONGODB_DBNAME, conf.MONGODB_USER, conf.MONGODB_PASSWORD)
@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
@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 = self.mongo.nb_articles()
nb_unread_articles = self.mongo.nb_unread_articles()
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
@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
@require()
def search(self, query=None):
"""
Simply search for the string 'query'
in the description of the article.
"""
param, _, value = query.partition(':')
wordre = re.compile(r'\b%s\b' % param, re.I)
feed_id = None
if param == "Feed":
feed_id, _, query = value.partition(':')
feeds = self.mongo.get_all_feeds()
tmpl = lookup.get_template("search.html")
return tmpl.render(feeds=feeds, feed_id=feed_id, query=query, \
wordre=wordre, mongo=self.mongo)
search.exposed = True
@require()
def fetch(self):
"""
Fetch all feeds.
"""
feed_getter = feedgetter.FeedGetter()
feed_getter.retrieve_feed()
return self.index()
fetch.exposed = True
@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("Bad URL. This article do not exists.")
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
@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)
except KeyError:
return self.error("This feed do not exists.")
if articles != []:
last_article = utils.string_to_datetime(str(articles[0]["article_date"]))
first_article = utils.string_to_datetime(str(articles[self.mongo.nb_articles(feed_id)-2]["article_date"]))
delta = last_article - first_article
delta_today = datetime.datetime.fromordinal(datetime.date.today().toordinal()) - last_article
average = round(float(nb_articles_feed) / abs(delta.days), 2)
favorites = self.mongo.get_favorites(feed_id)
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, \
first_post_date=first_article, end_post_date=last_article, \
average=average, delta=delta, delta_today=delta_today, \
tag_cloud=tag_cloud, word_size=word_size, mail_to=conf.mail_to)
feed.exposed = True
@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("This feed do not exists.")
tmpl = lookup.get_template("articles.html")
return tmpl.render(articles=articles, feed=feed)
articles.exposed = True
@require()
def unread(self, feed_id=""):
"""
This page displays all unread articles of a feed.
"""
feeds = self.mongo.get_all_feeds()
html = htmlheader()
html += htmlnav
html += """<div class="left inner">"""
if self.mongo.nb_unread_articles() != 0:
# List unread articles of all the database
if feed_id == "":
html += "<h1>Unread article(s)</h1>"
html += """\n<br />\n<a href="/mark_as_read/">Mark articles as read</a>\n<hr />\n"""
for feed in feeds:
new_feed_section = True
nb_unread = 0
# For all unread article of the current feed.
for article in self.mongo.get_articles(feed["feed_id"], condition=("article_readed", False)):
nb_unread += 1
if new_feed_section is True:
new_feed_section = False
html += """<h2><a name="%s"><a href="%s" rel="noreferrer" target="_blank">%s</a></a><a href="%s" rel="noreferrer" target="_blank"><img src="%s" width="28" height="28" /></a></h2>\n""" % \
(feed["feed_id"], feed["site_link"], feed["feed_title"], feed["feed_link"], feed["feed_image"])
# descrition for the CSS ToolTips
article_content = utils.clear_string(article["article_content"])
if article_content:
description = " ".join(article_content[:500].split(' ')[:-1])
else:
description = "No description."
# a description line per article (date, title of the article and
# CSS description tooltips on mouse over)
html += article["article_date"].strftime('%Y-%m-%d %H:%M') + " - " + \
"""<a class="tooltip" href="/article/%s:%s" rel="noreferrer" target="_blank">%s<span class="classic">%s</span></a><br />\n""" % \
(feed["feed_id"], article["article_id"], article["article_title"][:150], description)
if nb_unread == self.mongo.nb_unread_articles(feed["feed_id"]):
html += """<br />\n<a href="/mark_as_read/Feed:%s">Mark all articles from this feed as read</a>\n""" % \
(feed["feed_id"],)
html += """<hr />\n<a href="/mark_as_read/">Mark articles as read</a>\n"""
# List unread articles of a feed
else:
try:
feed = self.mongo.get_feed(feed_id)
except:
self.error("This feed do not exists.")
html += """<h1>Unread article(s) of the feed <a href="/articles/%s">%s</a></h1>
<br />""" % (feed_id, feed["feed_title"])
# For all unread article of the feed.
for article in self.mongo.get_articles(feed_id, condition=("article_readed", False)):
# descrition for the CSS ToolTips
article_content = utils.clear_string(article["article_content"])
if article_content:
description = " ".join(article_content[:500].split(' ')[:-1])
else:
description = "No description."
# a description line per article (date, title of the article and
# CSS description tooltips on mouse over)
html += article["article_date"].strftime('%Y-%m-%d %H:%M') + " - " + \
"""<a class="tooltip" href="/article/%s:%s" rel="noreferrer" target="_blank">%s<span class="classic">%s</span></a><br />\n""" % \
(feed_id, article["article_id"], article["article_title"][:150], description)
html += """<hr />\n<a href="/mark_as_read/Feed:%s">Mark all as read</a>""" % (feed_id,)
# No unread article
else:
html += '<h1>No unread article(s)</h1>\n<br />\n<a href="/fetch/">Why not check for news?</a>'
html += """\n<h4><a href="/">All feeds</a></h4>"""
html += "<hr />\n"
html += htmlfooter
return html
unread.exposed = True
@require()
def history(self, query="all", m=""):
"""
This page enables to browse articles chronologically.
"""
feeds = self.mongo.get_all_feeds()
html = htmlheader()
html += htmlnav
html += """<div class="left inner">\n"""
# Get the date from the tag cloud
# Format: /history/?query=year:2011-month:06 to get the
# list of articles of June, 2011.
if m != "":
query = """year:%s-month:%s""" % tuple(m.split('-'))
if query == "all":
html += "<h1>Search with tags cloud</h1>\n"
html += "<h4>Choose a year</h4></br >\n"
if "year" in query:
the_year = query.split('-')[0].split(':')[1]
if "month" not in query:
html += "<h1>Choose a month for " + the_year + "</h1></br >\n"
if "month" in query:
the_month = query.split('-')[1].split(':')[1]
html += "<h1>Articles of "+ calendar.month_name[int(the_month)] + \
", "+ the_year +".</h1><br />\n"
timeline = Counter()
for feed in feeds:
new_feed_section = True
for article in self.mongo.get_articles(feed["feed_id"]):
if query == "all":
timeline[str(article["article_date"]).split(' ')[0].split('-')[0]] += 1
elif query[:4] == "year":
if str(article["article_date"]).split(' ')[0].split('-')[0] == the_year:
timeline[str(article["article_date"]).split(' ')[0].split('-')[1]] += 1
if "month" in query:
if str(article["article_date"]).split(' ')[0].split('-')[1] == the_month:
if article["article_readed"] == False:
# not readed articles are in bold
not_read_begin, not_read_end = "<b>", "</b>"
else:
not_read_begin, not_read_end = "", ""
if article["article_like"] == True:
like = """ <img src="/img/heart.png" title="I like this article!" />"""
else:
like = ""
# Descrition for the CSS ToolTips
article_content = utils.clear_string(article["article_content"])
if article_content:
description = " ".join(article_content[:500].split(' ')[:-1])
else:
description = "No description."
# Title of the article
article_title = article["article_title"]
if len(article_title) >= 80:
article_title = article_title[:80] + " ..."
if new_feed_section is True:
new_feed_section = False
html += """<h2><a name="%s"><a href="%s" rel="noreferrer"
target="_blank">%s</a></a><a href="%s" rel="noreferrer"
target="_blank"><img src="%s" width="28" height="28" /></a></h2>\n""" % \
(feed["feed_id"], feed["site_link"], feed["feed_title"], feed["feed_link"], feed["feed_image"])
html += article["article_date"].strftime("%a %d (%H:%M:%S) ") + " - " + \
"""<a class="tooltip" href="/article/%s:%s" rel="noreferrer" target="_blank">%s%s%s<span class="classic">%s</span></a>""" % \
(feed["feed_id"], article["article_id"], not_read_begin, \
article_title, not_read_end, description) + like + "<br />\n"
if query == "all":
query_string = "year"
elif "year" in query:
query_string = "year:" + the_year + "-month"
if "month" not in query:
html += '<div style="width: 35%; overflow:hidden; text-align: justify">' + \
utils.tag_cloud([(elem, timeline[elem]) for elem in list(timeline.keys())], query_string) + '</div>'
html += '<br /><br /><h1>Search with a month+year picker</h1>\n'
html += '<form>\n\t<input name="m" type="month">\n\t<input type="submit" value="Go">\n</form>'
html += '<hr />'
html += htmlfooter
return html
history.exposed = True
@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("Bad URL. This article do not exists.")
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
@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
@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
@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
@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("Bad URL. This feed do not exists.")
return self.index()
mail_notification.exposed = True
@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("Bad URL. This article do not exists.")
self.mongo.like_article("1"==like, feed_id, article_id)
return self.article(feed_id+":"+article_id)
like.exposed = True
@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
@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
@require()
def add_feed(self, url):
"""
Add a new feed with the URL of a page.
"""
html = htmlheader()
html += htmlnav
html += """<div class="left inner">"""
# search the feed in the HTML page with BeautifulSoup
feed_url = utils.search_feed(url)
if feed_url is None:
return self.error("Impossible to find a feed at this URL.")
# 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:
html += "<p>You are already following this feed!</p>"
else:
html += """<p>Feed added. You can now <a href="/fetch/">fetch your feeds</a>.</p>"""
html += """\n<br />\n<a href="/management/">Back to the management page.</a><br />\n"""
html += "<hr />\n"
html += htmlfooter
return html
add_feed.exposed = True
@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 = """All articles from the feed <i>%s</i> are now removed from the base.""" % (feed["feed_title"],)
tmpl = lookup.get_template("confirmation.html")
return tmpl.render(message=message)
remove_feed.exposed = True
@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="The URL of the feed has been changed.")
change_feed_url.exposed = True
@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="The name of the feed has been changed.")
change_feed_name.exposed = True
@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="The logo of the feed has been changed.")
change_feed_logo.exposed = True
@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("Bad URL. This article do not exists.")
return self.index()
delete_article.exposed = True
@require()
def drop_base(self):
"""
Delete all articles.
"""
self.mongo.drop_database()
return self.index()
drop_base.exposed = True
@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:
print(e)
return self.error(e)
return self.management()
export.exposed = True
@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("This article do not exists.")
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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