aboutsummaryrefslogtreecommitdiff
path: root/pyAggr3g470r.py
blob: 4de1e6b342db1e7830363cd5ed3a62c65cb4ab3a (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
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
#! /usr/local/bin/python
#-*- coding: utf-8 -*-

__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 1.0 $"
__date__ = "$Date: 2010/03/01 $"
__copyright__ = "Copyright (c) 2010 Cedric Bonhomme"
__license__ = "GPLv3"

import os
import time
import sqlite3
import cherrypy
import threading

from cherrypy.lib.static import serve_file

import utils
import feedgetter

bindhost = "0.0.0.0"

cherrypy.config.update({ 'server.socket_port': 12556, 'server.socket_host': bindhost})

path = {'/css/style.css': {'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'css/style.css'}, \
        '/css/img/feed-icon-28x28.png': {'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'css/img/feed-icon-28x28.png'}, \
        '/css/img/delicious.png': {'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'css/img/delicious.png'}, \
        '/css/img/digg.png': {'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'css/img/digg.png'}, \
        '/css/img/reddit.png': {'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'css/img/reddit.png'}, \
        '/css/img/scoopeo.png': {'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'css/img/scoopeo.png'}, \
        '/css/img/blogmarks.png': {'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'css/img/blogmarks.png'}, \
        '/var/histogram.png':{'tools.staticfile.on': True, \
                'tools.staticfile.filename':utils.path+'var/histogram.png'}}

htmlheader = '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">\n' + \
            '<head>' + \
            '\n\t<title>pyAggr3g470r - RSS Feed Reader</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' + \
            '</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><a name="top"><a href="/">pyAggr3g470r - RSS Feed Reader</a></a></h1>\n<a' + \
        ' href="http://bitbucket.org/cedricbonhomme/pyaggr3g470r/" rel="noreferrer" target="_blank">' + \
        'pyAggr3g470r (source code)</a>'


class Root:
    def index(self):
        """
        Main page containing the list of feeds and articles.
        """
        html = htmlheader
        html += htmlnav
        html += self.create_right_menu()
        html += """<div class="left inner">\n"""

        for rss_feed_id in self.articles.keys():
            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""" % \
                        (rss_feed_id, \
                        self.feeds[rss_feed_id][5].encode('utf-8'), \
                        self.feeds[rss_feed_id][3].encode('utf-8'), \
                        self.feeds[rss_feed_id][4].encode('utf-8'), \
                        self.feeds[rss_feed_id][2].encode('utf-8'))

            # The main page display only 10 articles by feeds.
            for article in self.articles[rss_feed_id][:10]:

                if article[5] == "0":
                    # not readed articles are in bold
                    not_read_begin = "<b>"
                    not_read_end = "</b>"
                else:
                    not_read_begin = ""
                    not_read_end = ""

                html += article[1].encode('utf-8') + \
                        " - " + not_read_begin + \
                        """<a href="/description/%s:%s" rel="noreferrer" target="_blank">%s</a>""" % \
                                (rss_feed_id, article[0].encode('utf-8'), article[2].encode('utf-8')) + \
                        not_read_end + \
                        "<br />\n"
            html += "<br />\n"

            html += """<a href="/all_articles/%s">All articles</a>""" % (rss_feed_id,)
            html += """ <a href="/mark_as_read/Feed_FromMainPage:%s">Mark all as read</a>""" % (rss_feed_id,)
            if self.feeds[rss_feed_id][1] != 0:
                html += """ <a href="/unread/%s" title="Unread article(s)"
                        >Unread article(s) (%s)</a>""" % (rss_feed_id, \
                                        self.feeds[rss_feed_id][1])
            if self.feeds[rss_feed_id][6] == "0":
                html += """<br />\n<a href="/mail_notification/start:%s" title="By e-mail">Stay tuned</a>""" % (rss_feed_id,)
            else:
                html += """<br />\n<a href="/mail_notification/stop:%s" title="By e-mail">Stop staying tuned</a>""" %  (rss_feed_id,)
            html += """<h4><a href="/#top">Top</a></h4>"""
            html += "<hr />\n"
        html += htmlfooter
        return html

    index.exposed = True


    def create_right_menu(self):
        """
        Create the right menu.
        """
        html = """<div class="right inner">\n"""
        html += """<a href="/management/">Management</a><br />\n"""
        html += """<a href="/fetch/">Fetch all feeds</a><br />\n"""
        html += """<a href="/mark_as_read/All:">Mark articles as read</a>\n"""
        html += """<form method=get action="/q/"><input type="text" name="querystring" value=""><input
        type="submit" value="Search"></form>\n"""
        html += "<hr />\n"
        html += self.create_list_of_feeds()
        html += "</div>\n"
        return html

    def create_list_of_feeds(self):
        """
        Create the list of feeds.
        """
        html = """Your feeds (%s):<br />\n""" % len(self.articles.keys())
        for rss_feed_id in self.articles.keys():
            if self.feeds[rss_feed_id][1] != 0:
                # not readed articles are in bold
                not_read_begin = "<b>"
                not_read_end = "</b>"
            else:
                not_read_begin = ""
                not_read_end = ""
            html += """<a href="/#%s">%s</a> (<a href="/unread/%s"
                    title="Unread article(s)">%s%s%s</a> / %s)<br />\n""" % \
                            (rss_feed_id.encode('utf-8'), \
                            self.feeds[rss_feed_id][3].encode('utf-8'), \
                            rss_feed_id, not_read_begin, \
                            self.feeds[rss_feed_id][1], not_read_end, \
                            self.feeds[rss_feed_id][0])
        return html


    def management(self):
        """
        Management of articles.
        """
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">\n"""
        html += "<h1>Add Feeds</h1>\n"
        html += """<form method=get action="add_feed/"><input type="text" name="v" value="">\n<input
        type="submit" value="OK"></form>\n"""

        if self.articles:
            html += "<h1>Delete Feeds</h1>\n"
            html += """<form method=get action="del_feed/"><select name="feed_list">\n"""
            for feed_id in self.articles.keys():
                html += """\t<option value="%s">%s</option>\n""" % \
                        (feed_id, self.feeds[feed_id][3].encode('utf-8'))
            html += """</select></form>\n"""
            html += """<p><a href="/list_notification">Active e-mail notifications</a></p>\n"""

        html += "<hr />\n"
        html += """<p>The database contains a total of %s article(s) with
                <a href="/unread/All">%s unread article(s)</a>.<br />""" % \
                    (self.nb_articles, sum([feed[1] for feed in self.feeds.values()]))
        html += """Database: %s.\n<br />Size: %s bytes.</p>\n""" % \
                    (os.path.abspath(utils.sqlite_base), os.path.getsize(utils.sqlite_base))

        html += """<form method=get action="/fetch/">\n<input
        type="submit" value="Fetch all feeds"></form>\n"""
        html += """<form method=get action="add_feed/">\n<input
        type="submit" value="Delete all articles"></form>\n"""

        html += "<hr />\n"
        if self.articles:
            html += "<h1>Statistics</h1>\n"
            if "oice" not in utils.IMPORT_ERROR:
                nb_french = 0
                nb_english = 0
                for rss_feed_id in self.articles.keys():
                    for article in self.articles[rss_feed_id]:
                        if article[6] == 'french':
                            nb_french += 1
                        elif article[6] == 'english':
                            nb_english += 1
                nb_other = self.nb_articles - nb_french - nb_english

            html += "<table border=0>\n<tr><td>"
            html += "<h3>Words count</h3>\n"
            html += "<ol>\n"
            for word, frequency in self.top_words:
                html += """\t<li><a href="/q/?querystring=%s">%s</a>: %s</li>\n""" % \
                                (word, word, frequency)
            html += "</ol>\n"
            html += "<h3>Languages</h3>\n"
            if "oice" in utils.IMPORT_ERROR:
                html += "Install the module "
                html += """<a href="http://pypi.python.org/pypi/oice.langdet/">oice.langdet</a>"""
                html += "</td>\n<td>"
            else:
                html += "<ul>\n"
                for language in ['english', 'french', 'other']:
                    html += """\t<li>%s articles in <a href="/language/%s">%s</a></li>\n""" % \
                                    (locals()["nb_"+language], language, language)
                html += "</ul>\n</td>\n<td>"
            html += """<img src="/var/histogram.png" /></td></tr></table>"""

            html += "<hr />\n"
        html += htmlfooter
        return html

    management.exposed = True


    def q(self, querystring=None):
        """
        Search for a feed. Simply search for the string 'querystring'
        in the description of the article.
        """
        param, _, value = querystring.partition(':')
        feed_id = None
        if param == "Feed":
            feed_id, _, querystring = value.partition(':')
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">"""

        html += """<h1>Articles containing the string <i>%s</i></h1><br />""" % (querystring,)

        if feed_id is not None:
            for article in self.articles[rss_feed_id]:
                article_content = utils.remove_html_tags(article[4].encode('utf-8'))
                if not article_content:
                    utils.remove_html_tags(article[2].encode('utf-8'))
                if querystring.lower() in article_content.lower():
                    if article[5] == "0":
                        # not readed articles are in bold
                        not_read_begin = "<b>"
                        not_read_end = "</b>"
                    else:
                        not_read_begin = ""
                        not_read_end = ""

                    html += article[1].encode('utf-8') + \
                            " - " + not_read_begin + \
                            """<a href="/description/%s:%s" rel="noreferrer" target="_blank">%s</a>""" % \
                                    (feed_id, article[0].encode('utf-8'), article[2].encode('utf-8')) + \
                            not_read_end
        else:
            for rss_feed_id in self.articles.keys():
                for article in self.articles[rss_feed_id]:
                    article_content = utils.remove_html_tags(article[4].encode('utf-8'))
                    if not article_content:
                        utils.remove_html_tags(article[2].encode('utf-8'))
                    if querystring.lower() in article_content.lower():
                        if article[5] == "0":
                            # not readed articles are in bold
                            not_read_begin = "<b>"
                            not_read_end = "</b>"
                        else:
                            not_read_begin = ""
                            not_read_end = ""

                        html += article[1].encode('utf-8') + \
                                " - " + not_read_begin + \
                                """<a href="/description/%s:%s" rel="noreferrer" target="_blank">%s</a>""" % \
                                        (rss_feed_id, article[0].encode('utf-8'), article[2].encode('utf-8')) + \
                                not_read_end + """ from <i><a href="%s">%s</a></i><br />\n""" % \
                                        (self.feeds[rss_feed_id][5].encode('utf-8'), \
                                        self.feeds[rss_feed_id][3].encode('utf-8'))
        html += "<hr />"
        html += htmlfooter
        return html

    q.exposed = True


    def fetch(self):
        """
        Fetch all feeds
        """
        feed_getter = feedgetter.FeedGetter()
        feed_getter.retrieve_feed()
        #self.update()
        return self.index()

    fetch.exposed = True


    def description(self, param):
        """
        Display the description of an article in a new Web page.
        """
        try:
            feed_id, article_id = param.split(':')
        except:
            return self.error_page("Bad URL")
        try:
            articles_list = self.articles[feed_id]
        except KeyError:
            return self.error_page("This feed do not exists.")
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">"""
        for article in articles_list:
            if article_id == article[0]:

                if article[5] == "0":
                    self.mark_as_read("Article:"+article[3]) # update the database

                html += """<h1><i>%s</i> from <a href="/all_articles/%s">%s</a></h1>\n<br />\n""" % \
                                (article[2].encode('utf-8'), feed_id, \
                                self.feeds[feed_id][3].encode('utf-8'))
                description = article[4].encode('utf-8')
                if description:
                    html += description
                else:
                    html += "No description available."
                html += "\n<hr />\n"
                html += """This article seems to be written in <a href="/language/%s">%s</a>.\n""" % \
                                (article[6], article[6])
                html += """<br />\n<a href="/plain_text/%s:%s">Plain text</a>\n""" % \
                                (feed_id, article_id)
                html += """<br />\n<a href="%s">Complete story</a>\n<br />\n""" % \
                                (article[3].encode('utf-8'),)
                # Share this article:
                # on delicious
                html += """<a href="http://delicious.com/post?url=%s&title=%s"
                        rel="noreferrer" target="_blank">\n
                        <img src="/css/img/delicious.png" title="Share on del.iciou.us" /></a> &nbsp;&nbsp; """ % \
                                (article[3].encode('utf-8'), article[2].encode('utf-8'))
                # on Digg
                html += """<a href="http://digg.com/submit?url=%s&title=%s"
                        rel="noreferrer" target="_blank">\n
                        <img src="/css/img/digg.png" title="Share on Digg" /></a> &nbsp;&nbsp; """ % \
                                (article[3].encode('utf-8'), article[2].encode('utf-8'))
                # on reddit
                html += """<a href="http://reddit.com/submit?url=%s&title=%s"
                        rel="noreferrer" target="_blank">\n
                        <img src="/css/img/reddit.png" title="Share on reddit" /></a> &nbsp;&nbsp; """ % \
                                (article[3].encode('utf-8'), article[2].encode('utf-8'))
                # on Scoopeo
                html += """<a href="http://scoopeo.com/scoop/new?newurl=%s&title=%s"
                        rel="noreferrer" target="_blank">\n
                        <img src="/css/img/scoopeo.png" title="Share on Scoopeo" /></a> &nbsp;&nbsp; """ % \
                                (article[3].encode('utf-8'), article[2].encode('utf-8'))
                # on Blogmarks
                html += """<a href="http://blogmarks.net/my/new.php?url=%s&title=%s"
                        rel="noreferrer" target="_blank">\n
                        <img src="/css/img/blogmarks.png" title="Share on Blogmarks" /></a>""" % \
                                (article[3].encode('utf-8'), article[2].encode('utf-8'))
                break
        html += "<hr />\n" + htmlfooter
        return html

    description.exposed = True


    def all_articles(self, feed_id):
        """
        Display all articles of a feed.
        """
        try:
            articles_list = self.articles[feed_id]
        except KeyError:
            return self.error_page("This feed do not exists.")
        html = htmlheader
        html += htmlnav
        html += """<div class="right inner">\n"""
        html += """<a href="/mark_as_read/Feed:%s">Mark all articles from this feed as read</a>""" % (feed_id,)
        html += """<br />\n<form method=get action="/q/Feed"><input type="text" name="Feed:%s:querystring" value=""><input
        type="submit" value="Search this feed"></form>\n""" % (feed_id,)
        html += "<hr />\n"
        html += self.create_list_of_feeds()
        html += """</div> <div class="left inner">"""
        html += """<h1>Articles of the feed <i>%s</i></h1><br />""" % (self.feeds[feed_id][3].encode('utf-8'))

        for article in articles_list:

            if article[5] == "0":
                # not readed articles are in bold
                not_read_begin = "<b>"
                not_read_end = "</b>"
            else:
                not_read_begin = ""
                not_read_end = ""

            html += article[1].encode('utf-8') + \
                    " - " + not_read_begin + \
                    """<a href="/description/%s:%s" rel="noreferrer" target="_blank">%s</a>""" % \
                            (feed_id, article[0].encode('utf-8'), \
                            utils.remove_html_tags(article[2].encode('utf-8'))) + \
                    not_read_end + \
                    "<br />\n"

        html += """\n<h4><a href="/">All feeds</a></h4>"""
        html += "<hr />\n"
        html += htmlfooter
        return html

    all_articles.exposed = True


    def unread(self, feed_id):
        """
        Display all unread articles of a feed.
        """
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">"""
        if feed_id == "All":
            html += "<h1>Unread article(s)</h1>"
            for rss_feed_id in self.feeds.keys():
                for article in self.articles[rss_feed_id]:
                    if article[5] == "0":
                        html += article[1].encode('utf-8') + \
                                """ - <a href="/description/%s:%s" rel="noreferrer" target="_blank">%s</a>
                                from <i><a href="%s">%s</a></i><br />\n""" % \
                                        (rss_feed_id, article[0].encode('utf-8'), article[2].encode('utf-8'), \
                                        self.feeds[rss_feed_id][5].encode('utf-8'), \
                                        self.feeds[rss_feed_id][3].encode('utf-8'))
            html += """<hr />\n<a href="/mark_as_read/All:">Mark articles as read</a>\n"""
        else:
            try:
                articles_list = self.articles[feed_id]
            except KeyError:
                return self.error_page("This feed do not exists.")
            html += """<h1>Unread article(s) of the feed <a href="/all_articles/%s">%s</a></h1>
                <br />""" % (feed_id, self.feeds[feed_id][3].encode('utf-8'))
            for article in articles_list:
                if article[5] == "0":
                    html += article[1].encode('utf-8') + \
                            """ - <a href="/description/%s:%s" rel="noreferrer" target="_blank">%s</a>""" % \
                                    (feed_id, article[0].encode('utf-8'), article[2].encode('utf-8')) + \
                            "<br />\n"
            html += """<hr />\n<a href="/mark_as_read/Feed:%s">Mark all as read</a>""" % (feed_id,)
        html += """\n<h4><a href="/">All feeds</a></h4>"""
        html += "<hr />\n"
        html += htmlfooter
        return html

    unread.exposed = True


    def language(self, lang):
        """
        Display articles by language.
        """
        if lang not in ['english', 'french', 'other']:
            return self.error_page('This language is not supported.')
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">"""
        html += """<h1>Article(s) written in %s</h1>\n<br />\n""" % (lang,)
        if "oice" not in utils.IMPORT_ERROR:
            for rss_feed_id in self.articles.keys():
                for article in self.articles[rss_feed_id]:
                    if article[6] == lang:
                        html += article[1].encode('utf-8') + \
                                """ - <a href="/description/%s:%s" rel="noreferrer" target="_blank">%s</a>
                                from <i><a href="%s">%s</a></i><br />\n""" % \
                                        (rss_feed_id, article[0].encode('utf-8'), article[2].encode('utf-8'), \
                                        self.feeds[rss_feed_id][5].encode('utf-8'), \
                                        self.feeds[rss_feed_id][3].encode('utf-8'))
        else:
            html += "Install the module "
            html += """<a href="http://pypi.python.org/pypi/oice.langdet/">oice.langdet</a>"""
        html += "<hr />\n"
        html += htmlfooter
        return html

    language.exposed = True


    def plain_text(self, target):
        """
        Display an article in plain text (without HTML tags).
        """
        try:
            feed_id, article_id = target.split(':')
        except:
            return self.error_page("This article do not exists.")
        try:
            articles_list = self.articles[feed_id]
        except KeyError:
            return self.error_page("This feed do not exists.")
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">"""
        feed_id, article_id = target.split(':')
        for article in articles_list:
            if article_id == article[0]:
                html += """<h1><i>%s</i> from <a href="/all_articles/%s">%s</a></h1>\n<br />\n"""% \
                                    (article[2].encode('utf-8'), feed_id, \
                                    self.feeds[feed_id][3].encode('utf-8'))
                description = utils.remove_html_tags(article[4].encode('utf-8'))
                if description:
                    html += description
                else:
                    html += "No description available."
        html += "\n<hr />\n" + htmlfooter
        return html

    plain_text.exposed = True


    def error_page(self, message):
        """
        Display a message (bad feed id, bad article id, etc.)
        """
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">"""
        html += """%s""" % message
        html += "\n<hr />\n" + htmlfooter
        return html

    error_page.exposed = True


    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 SQLite database to 1.
        """
        LOCKER.acquire()
        param, _, identifiant = target.partition(':')
        try:
            conn = sqlite3.connect(utils.sqlite_base, isolation_level = None)
            c = conn.cursor()
            # Mark all articles as read.
            if param == "All":
                c.execute("UPDATE articles SET article_readed=1")
            # Mark all articles from a feed as read.
            elif param == "Feed" or param == "Feed_FromMainPage":
                c.execute("UPDATE articles SET article_readed=1 WHERE feed_link='" + \
                            self.feeds[identifiant][4].encode('utf-8') + "'")
            # Mark an article as read.
            elif param == "Article":
                c.execute("UPDATE articles SET article_readed=1 WHERE article_link='" + \
                            identifiant + "'")
            conn.commit()
            c.close()
        except Exception:
            self.error_page("Impossible to mark this article as read (database error).")

        #threading.Thread(None, self.update, None, ()).start()

        if param == "All" or param == "Feed_FromMainPage":
            return self.index()
        elif param == "Feed":
            return self.all_articles(identifiant)
        LOCKER.release()

    mark_as_read.exposed = True


    def list_notification(self):
        """
        List all active e-mail notifications.
        """
        html = htmlheader
        html += htmlnav
        html += """<div class="left inner">"""
        html += "<h1>You are receiving e-mails for the following feeds:</h1>\n"
        for rss_feed_id in self.feeds.keys():
            if self.feeds[rss_feed_id][6] == "1":
                html += """\t<a href="/all_articles/%s">%s</a> - <a href="/mail_notification/stop:%s">Stop</a><br />\n""" % \
                        (rss_feed_id, self.feeds[rss_feed_id][3].encode('utf-8'), rss_feed_id)

        html += """<p>Notifications are sent to: <a href="mail:%s">%s</a></p>""" % \
                        (utils.mail_to, utils.mail_to)
        html += "\n<hr />\n" + htmlfooter
        return html

    list_notification.exposed = True


    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_page("Bad URL")
        if feed_id not in self.feeds.keys():
            return self.error_page("This feed do not exists.")
        conn = sqlite3.connect(utils.sqlite_base, isolation_level = None)
        c = conn.cursor()
        if action == "start":
            try:
                c.execute("UPDATE feeds SET mail=1 WHERE feed_site_link='" +
                            self.feeds[feed_id][5].encode('utf-8') + "'")
            except:
                return self.error_page("Error")
        else:
            try:
                c.execute("UPDATE feeds SET mail=0 WHERE feed_site_link='" +
                            self.feeds[feed_id][5].encode('utf-8') + "'")
            except:
                return self.error_page("Error")
        conn.commit()
        c.close()
        return self.index()

    mail_notification.exposed = True


    def update(self, path=None, event = None):
        """
        Synchronizes transient objects with the database,
        computes the list of most frequent words and generates the histogram.
        Called when an article is marked as read or when new articles are fetched.
        """
        self.articles, self.feeds = utils.load_feed()
        self.nb_articles = sum([feed[0] for feed in self.feeds.values()])
        if self.articles != {}:
            self.top_words = utils.top_words(self.articles, 10)
            if "pylab" not in utils.IMPORT_ERROR:
                utils.create_histogram(self.top_words)
            print "Base (%s) loaded" % utils.sqlite_base
        else:
            print "Base (%s) empty!" % utils.sqlite_base


    def watch_base(self):
        """Monitor a file.

        Detect the changes in base of feeds.
        When a change is detected, reload the base.
        """
        mon = gamin.WatchMonitor()
        time.sleep(10)
        mon.watch_file(utils.sqlite_base, self.update)
        ret = mon.event_pending()
        try:
            print "Watching %s" % utils.sqlite_base
            while True:
                ret = mon.event_pending()
                if ret > 0:
                    print "The base of feeds (%s) has changed.\nReloading..." % utils.sqlite_base
                    ret = mon.handle_one_event()
                time.sleep(1)
        except KeyboardInterrupt:
            pass
        print "Stop watching", sqlite_base
        mon.stop_watch(sqlite_base)
        del mon


        def watch_base_classic(self):
            """
            Monitor the base of feeds if the module gamin is not
            installed.
            """
            time.sleep(10)
            old_size = 0
            try:
                print "Watching %s" % utils.sqlite_base
                while True:
                    time.sleep(2)
                    # very simple test
                    if os.path.getsize(utils.sqlite_base) != old_size:
                        print "The base of feeds (%s) has changed.\nReloading..." % utils.sqlite_base
                        self.update()
                        old_size = os.path.getsize(utils.sqlite_base)
            except KeyboardInterrupt:
                pass
            print "Stop watching", utils.sqlite_base


if __name__ == '__main__':
    # Point of entry in execution mode
    LOCKER = threading.Lock()
    root = Root()
    if not os.path.isfile(utils.sqlite_base):
        # create the SQLite base if not exists
        utils.create_base()
    # load the informations from base in memory
    root.update()
    # launch the available base monitoring method (gamin or classic)
    try:
        import gamin
        thread_watch_base = threading.Thread(None, root.watch_base, None, ())
    except:
        print "The gamin module is not installed."
        print "The base of feeds will be monitored with the simple method."
        thread_watch_base = threading.Thread(None, root.watch_base_classic, None, ())
    thread_watch_base.setDaemon(True)
    thread_watch_base.start()
    cherrypy.quickstart(root, config=path)
bgstack15