~cedric/pyAggr3g470r

ref: 239ad36ce28b6adb0aa11cd5ed6994fdd59c7ecd pyAggr3g470r/feedgetter.py -rwxr-xr-x 5.6 KiB
239ad36c — cedricbonhomme MongoDB database stable: merging MongoDB branch in the default branch. 10 years ago
                                                                                
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
#! /usr/bin/env python
#-*- coding: utf-8 -*-

# pyAggr3g470r - A Web based news aggregator.
# Copyright (C) 2010  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: 1.0 $"
__date__ = "$Date: 2010/09/02 $"
__copyright__ = "Copyright (c) Cedric Bonhomme"
__license__ = "GPLv3"

import os.path
import traceback
import threading
import feedparser
import hashlib
from BeautifulSoup import BeautifulSoup

from datetime import datetime

import utils
import mongodb

feeds_list = []
list_of_threads = []


class FeedGetter(object):
    """
    This class is in charge of retrieving feeds listed in ./var/feed.lst.
    This class uses feedparser module from Mark Pilgrim.
    For each feed a new thread is launched.
    """
    def __init__(self):
        """
        Initializes the base and variables.
        """
        # MongoDB connections
        self.articles = mongodb.Articles()

    def retrieve_feed(self):
        """
        Parse the file 'feeds.lst' and launch a thread for each RSS feed.
        """
        with open("./var/feed.lst") as f:
            for a_feed in f:
                # test if the URL is well formed
                for url_regexp in utils.url_finders:
                    if url_regexp.match(a_feed):
                        the_good_url = url_regexp.match(a_feed).group(0).replace("\n", "")
                        try:
                            # launch a new thread for the RSS feed
                            thread = threading.Thread(None, self.process, \
                                                None, (the_good_url,))
                            thread.start()
                            list_of_threads.append(thread)
                        except:
                            pass
                        break

        # wait for all threads are done
        for th in list_of_threads:
            th.join()

    def process(self, the_good_url):
        """Request the URL

        Executed in a thread.
        """
        if utils.detect_url_errors([the_good_url]) == []:
            # if ressource is available add the articles in the base.
            self.add_into_database(the_good_url)

    def add_into_database(self, feed_link):
        """
        Add the articles of the feed 'a_feed' in the SQLite base.
        """
        a_feed = feedparser.parse(feed_link)
        if a_feed['entries'] == []:
            return
        try:
            feed_image = a_feed.feed.image.href
        except:
            feed_image = "/img/feed-icon-28x28.png"

        sha1_hash = hashlib.sha1()
        sha1_hash.update(feed_link.encode('utf-8'))
        feed_id = sha1_hash.hexdigest()
            
        collection_dic = {"feed_id": feed_id, \
                            "type": 0, \
                            "feed_image": feed_image, \
                            "feed_title": utils.clear_string(a_feed.feed.title.encode('utf-8')), \
                            "feed_link": feed_link, \
                            "site_link": a_feed.feed.link.encode('utf-8'), \
                            "mail": False \
                        }
            
        self.articles.add_collection(collection_dic)

        articles = []
        for article in a_feed['entries']:
            description = ""
            try:
                # article content
                description = article.content[0].value
            except AttributeError:
                try:
                    # article description
                    description = article.description
                except Exception, e:
                    description = ""
            description = str(BeautifulSoup(description))
            article_title = str(BeautifulSoup(article.title))

            try:
                post_date = datetime(*article.updated_parsed[:6])
            except:
                post_date = datetime(*article.published_parsed[:6])


            sha1_hash = hashlib.sha1()
            sha1_hash.update(article.link.encode('utf-8'))
            article_id = sha1_hash.hexdigest()

            article = {"article_id": article_id, \
                    "type":1, \
                    "article_date": post_date, \
                    "article_link": article.link.encode('utf-8'), \
                    "article_title": article_title, \
                    "article_content": description, \
                    "article_readed": False, \
                    "article_like": False \
                    }
                
            articles.append(article)

        self.articles.add_articles(articles, feed_id)

        # send new articles by e-mail if desired.
        #threading.Thread(None, utils.send_mail, None, (utils.mail_from, utils.mail_to, \
                            #a_feed.feed.title.encode('utf-8'), \
                            #article_title, description) \
                        #).start()



if __name__ == "__main__":
    # Point of entry in execution mode
    feed_getter = FeedGetter()
    feed_getter.retrieve_feed()