aboutsummaryrefslogtreecommitdiff
path: root/source/pyAggr3g470r.py
blob: 76507afed0df48c56c404d741d3015f177b0e92e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
#! /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: 3.7 $"
__date__ = "$Date: 2010/01/29 $"
__revision__ = "$Date: 2013/01/05 $"
__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
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.
    """
    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.require': [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 = 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 = 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

    @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("<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>&lt;', description)
            description = q.sub('&gt;</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)
            favorites = self.mongo.get_favorites(feed_id)
        except KeyError:
            return self.error("<p>This feed do not exists.</p>")

        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, \
                            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)

    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("<p>This feed do not exists.</p>")
        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()
        tmpl = lookup.get_template("unread.html")
        return tmpl.render(feeds=feeds, feed_id=feed_id, mongo=self.mongo)
    unread.exposed = True

    @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

    @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

    @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("<p>Bad URL. This feed do not exists.</p>")
        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("<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

    @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.
        """
        # 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

    @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

    @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

    @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

    @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

    @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

    @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:
            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

    @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")
bgstack15