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diff --git a/source/.hgsub b/source/.hgsub
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+qrcode = http://hg.cedricbonhomme.org/qrcode/
diff --git a/source/COPYING b/source/COPYING
new file mode 100755
index 00000000..20d40b6b
--- /dev/null
+++ b/source/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
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+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
\ No newline at end of file
diff --git a/source/README b/source/README
new file mode 100644
index 00000000..a2737f76
--- /dev/null
+++ b/source/README
@@ -0,0 +1,84 @@
+.. -*-restructuredtext-*-
+
+============
+pyAggr3g470r
+============
+
+.. Use headers in this order #=~-_
+
+:toc: yes
+:symrefs: yes
+:sortrefs: yes
+:compact: yes
+:subcompact: no
+:rfcedstyle: no
+:comments: no
+:inline: yes
+:private: yes
+
+:author: Cédric Bonhomme
+:contact: http://cedricbonhomme.org/
+
+
+Presentation
+------------
+pyAggr3g470r_ is a multi-threaded news aggregator with a web interface
+based on CherryPy_. Articles are stored in a MongoDB_ base.
+
+
+
+Features
+------------
+* articles are stored in a MongoDB_ database;
+* find an article with history;
+* e-mail notification;
+* export articles to HTML, EPUB, PDF or raw text;
+* mark or unmark articles as favorites;
+* share articles with Diaspora, Google Buzz, Pinboard, delicious, Identi.ca, Digg, reddit, Scoopeo, Blogmarks and Twitter;
+* generation of QR code with the content or URL of an article. So you can read an article later on your smartphone (or share with friends).
+
+
+
+Requierements
+-------------
+Software required
+~~~~~~~~~~~~~~~~~
+* Python_ 2.7.*;
+* MongoDB_ and PyMongo_;
+* feedparser_;
+* CherryPy_ (version 3 and up);
+* BeautifulSoup_.
+
+
+Optional module
+~~~~~~~~~~~~~~~
+These modules are not required but enables more features:
+* lxml and Genshi;
+* Python Imaging Library for the generation of QR codes.
+
+
+If you want to install these modules:
+
+    sudo aptitude install  python-lxml python-genshi
+
+
+Donnation
+---------
+If you wish and if you like pyAggr3g470r, you can donate via bitcoin. My bitcoin address: 1GVmhR9fbBeEh7rP1qNq76jWArDdDQ3otZ
+Thank you!
+
+
+
+License
+------------
+pyAggr3g470r_ is under GPLv3_ license.
+
+
+.. _Python: http://python.org/
+.. _pyAggr3g470r: https://bitbucket.org/cedricbonhomme/pyaggr3g470r/
+.. _feedparser: http://feedparser.org/
+.. _MongoDB: http://www.mongodb.org/
+.. _PyMongo: https://github.com/mongodb/mongo-python-driver
+.. _CherryPy: http://cherrypy.org/
+.. _BeautifulSoup: http://www.crummy.com/software/BeautifulSoup/
+.. _GPLv3: http://www.gnu.org/licenses/gpl-3.0.txt
diff --git a/source/cfg/cherrypy.cfg b/source/cfg/cherrypy.cfg
new file mode 100644
index 00000000..a419504d
--- /dev/null
+++ b/source/cfg/cherrypy.cfg
@@ -0,0 +1,24 @@
+[global]
+log.error_file = "var/error.log"
+log.access_file = "var/access.log"
+server.environment = "production"
+engine.autoreload_on = True
+engine.autoreload_frequency = 5
+engine.timeout_monitor.on = False
+
+[/]
+tools.staticdir.root = os.getcwd()
+tools.staticdir.on = True
+tools.staticdir.dir = "."
+tools.encode.on = True
+tools.encode.encoding = "utf8"
+
+[/css]
+tools.staticdir.on = True
+tools.staticdir.dir = "css"
+tools.staticdir.match = "(?i)^.+\.css$"
+
+[/images]
+tools.staticdir.on = True
+tools.staticdir.dir = "img"
+tools.staticdir.match = "(?i)^.+\.png$"
\ No newline at end of file
diff --git a/source/cfg/pyAggr3g470r.cfg-sample b/source/cfg/pyAggr3g470r.cfg-sample
new file mode 100755
index 00000000..95db75c5
--- /dev/null
+++ b/source/cfg/pyAggr3g470r.cfg-sample
@@ -0,0 +1,15 @@
+[global]
+max_nb_articles = 50
+[MongoDB]
+address = 127.0.0.1
+port = 27017
+user = username
+password = pwd
+[mail]
+mail_from = pyAggr3g470r@no-reply.com
+mail_to = address_of_the_recipient@example.com
+smtp = smtp.example.com
+username = your_mail_address@example.com
+password = your_password
+[misc]
+diaspora_pod = joindiaspora.com
diff --git a/source/css/style.css b/source/css/style.css
new file mode 100755
index 00000000..5f9574e7
--- /dev/null
+++ b/source/css/style.css
@@ -0,0 +1,374 @@
+html, body {
+    margin: 0;
+    padding: 0;
+    width: 100%;
+    height: 100%;
+    overflow-x: hidden;
+    background-color: white;
+    color: black;
+}
+
+body {
+    text-align: justify;
+    font: 400 0.85em Cambria, Georgia, "Trebuchet MS", Verdana, sans-serif;
+}
+
+code, pre {
+    font: 400 0.85em Cambria, Georgia, "Trebuchet MS", Verdana, sans-serif, Fixed;
+    white-space:pre-wrap;
+}
+
+img {
+    border: 0px;
+}
+
+h1 {
+    font-size: 100%;
+    margin: 0em 0em;
+    padding: 0px;
+}
+
+h2 {
+    margin: 0.5em 0em;
+    padding: 0px;
+    font-style: normal;
+    font-variant: normal;
+    font-weight: bold;
+    font-size: 100%;
+    letter-spacing: 0em;
+    text-align: right;
+}
+
+h3 {
+    margin: 0em 0em 0.5em 0em;
+    font-size: 100%;
+    font-weight: bold;
+    text-align: left;
+}
+
+h1 a, h2 a, h3 a {
+    text-decoration: none;
+}
+
+h2 + h3 {
+    margin-top: 0.5em;
+}
+
+table {
+    margin-left: 2em;
+    margin-bottom: 1em;
+    border-collapse: collapse;
+    text-align: left;
+}
+
+th, td {
+    padding-right: 1em;
+    text-align: left;
+}
+
+th {
+    vertical-align: bottom;
+    border-bottom: 1px solid black;
+    text-align: left;
+}
+
+td {
+    vertical-align: top;
+    padding-top: 5px;
+    text-align: left;
+}
+
+table.border td, table.border th {
+    border: 1px solid black;
+}
+
+p {
+    margin: 0.5em 0em;
+}
+
+ol.lower {
+    list-style-type: lower-alpha;
+}
+
+ol.upper {
+    list-style-type: upper-alpha;
+}
+
+ol.roman {
+    list-style-type: lower-roman;
+}
+
+ul {
+    margin: 0em 0em 0.5em 0.5em;
+    padding: 0em;
+}
+
+li {
+    margin: 0em 0em 0em 0.5em;
+    padding: 0em;
+}
+
+a:link, a:visited {
+    color: #003399;
+    text-decoration:none
+}
+
+a:hover {
+    color: blue;
+}
+
+dt {
+    margin: 0.5em 0em 0em 0em;
+    padding: 0em;
+    font-weight: bold;
+}
+
+dd {
+    margin: 0em;
+}
+
+hr {
+    color: white;
+    border-top: dotted black;
+    border-width: 1px 0px 0px 0px;
+    margin: 1em 0em;
+}
+
+
+#heading {
+    position: absolute;
+    left: 0px;
+    top: 0px;
+    width: 100%;
+    z-index: 1;
+}
+
+/* Navigation bars */
+.nav_container { position:fixed; top:160px; right:60px; margin:0px; padding:0px; white-space:nowrap; z-index:11; clear:both;}
+.nav_container.horizontal { position:absolute; white-space:normal; z-index:25; width:670px; }
+.nav_container.horizontal div { float:right; padding-right:10px; }
+
+#nav {
+    position: absolute;
+    top: 0px;
+    right: 0px;
+    z-index: 2;
+}
+
+#heading, #nav, #nav ul {
+    margin: 0;
+    height: 1.8em;
+}
+
+#heading, #nav ul, #nav li {
+    background: #EEEEEE;
+    color: inherit;
+    border-bottom: 0px solid black;
+}
+
+#heading h1 {
+    margin: 0;
+    padding: 0.4em 0 0.4em 2em;
+    white-space: nowrap;
+}
+
+#nav ul {
+    display: block;
+    margin: 0 3em 0 0;
+    border-right: 0px solid #000000;
+}
+
+#nav li {
+    margin: 0em;
+    padding: 0.4em 1em 0.2em 1em;
+    display: block;
+    float: left;
+    border-left: 0px solid #000000;
+}
+
+pre {
+    margin-left: 2em;
+}
+
+.right {
+    clear: right;
+    float: right;
+    text-align: right;
+    margin: 0em 2em 0em 2em;
+    max-width: 36%;
+}
+
+img.right {
+    width: auto;
+}
+
+.inner .right {
+    margin-right: 0em;
+}
+
+.right blockquote {
+    float: right;
+    position: relative;
+    clear: both;
+    padding-top: 1em;
+    padding-bottom: 0em;
+    margin-bottom: 0em;
+    font-style: italic;
+    width: 100%;
+    margin-right: 0em;
+}
+
+blockquote.right {
+    width: 50%;
+    margin-left: 50%;
+    margin-right: 0em;
+}
+
+/* Footer (W3C logos) */
+
+#w3c {
+    text-align: right;
+    padding: 0em 2em 0em 2em;
+    clear: both;
+}
+
+#w3c img {
+    padding-left: 10px;
+    padding-top: 1em;
+}
+
+/* Classes */
+
+.clear {
+    font-size: 1px;
+    line-height: 1px;
+    height: 0px;
+    clear: both;
+}
+
+.invisible {
+    display: none;
+}
+
+.inner {
+    margin-top: 3em;
+    padding: 0em 2em 0em 2em;
+    clear: both;
+}
+
+.innerlogo {
+    margin-top: 0em;
+    padding: 0em 2em 0em 2em;
+    clear: both;
+}
+
+.left {
+    float: left;
+    position: absolute;
+
+}
+
+.tex {
+    position: relative; top: 0.2em;
+    margin-left: -0.2em;
+    margin-right: -0.1em;
+}
+
+/* Photo album */
+
+#album {
+    margin: 0 auto;
+    padding: 3em 2em 0em 2em;
+}
+
+#thumbs {
+    background: white;
+    position: absolute;
+    left: 2em;
+    right: 2em;
+    margin-top: -100px;
+    padding-bottom: 0.5em;
+    overflow: auto;
+}
+
+#thumbs table {
+    margin: 0 auto;
+    position: relative;
+    max-width: 100%;
+    border-collapse: collapse;
+    border: 0px;
+}
+
+#pageselectors {
+    margin-top: 1em;
+    text-align: center;
+    padding-bottom: 100px;
+    margin-bottom: 0.5em;
+}
+
+#thumbs img, #photo img {
+    display: block;
+    margin: 0 auto;
+}
+
+#thumbs td {
+    width: 8em;
+    min-width: 100px;
+    text-align: center;
+    padding: 0.5em 0.5em 0em 0em;
+    border: 0px;
+    margin: 0px;
+}
+
+#photo {
+    text-align: center;
+}
+
+#thumbs img {
+    opacity: 0.99;
+    -moz-opacity: 0.99;
+}
+
+#thumbs img:hover {
+    opacity: 0.7;
+    -moz-opacity: 0.7;
+}
+
+#photo img {
+    max-width: 100%;
+    min-height: 300px;
+    max-height: 300px;
+    overflow: scroll;
+    margin-top: 0.5em;
+}
+
+/* CSS ToolTips */
+    .tooltip {
+        color: #FFF;
+        outline: none;
+        text-decoration: none;
+        position: relative;
+    }
+
+    .tooltip span {
+        color: #FFF;
+        margin-left: -999em;
+        position: absolute;
+    }
+
+    .tooltip:hover span {
+        border-radius: 5px 5px; -moz-border-radius: 5px; -webkit-border-radius: 5px;
+        box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1); -webkit-box-shadow: 5px 5px rgba(0, 0, 0, 0.1); -moz-box-shadow: 5px 5px rgba(0, 0, 0, 0.1);
+        font-family: Calibri, Tahoma, Geneva, sans-serif;
+        position: absolute; left: 1em; top: 2em; z-index: 99;
+        margin-left: 0; width: 250px;
+    }
+    .classic {
+        padding: 0.8em 1em;
+        background: rgba(0, 0, 0, 0.85);
+        border: 5px 5px;
+    }
+
+    * html a:hover {
+        background: transparent;
+    }
\ No newline at end of file
diff --git a/source/epub/__init__.py b/source/epub/__init__.py
new file mode 100644
index 00000000..8d1c8b69
--- /dev/null
+++ b/source/epub/__init__.py
@@ -0,0 +1 @@
+ 
diff --git a/source/epub/epub.py b/source/epub/epub.py
new file mode 100644
index 00000000..2c01b54a
--- /dev/null
+++ b/source/epub/epub.py
@@ -0,0 +1,343 @@
+#! /usr/local/bin/python

+#-*- coding: utf-8 -*-

+

+import itertools

+import mimetypes

+import os

+import shutil

+import subprocess

+import uuid

+import zipfile

+from genshi.template import TemplateLoader

+from lxml import etree

+

+class TocMapNode:

+    def __init__(self):

+        self.playOrder = 0

+        self.title = ''

+        self.href = ''

+        self.children = []

+        self.depth = 0

+

+    def assignPlayOrder(self):

+        nextPlayOrder = [0]

+        self.__assignPlayOrder(nextPlayOrder)

+

+    def __assignPlayOrder(self, nextPlayOrder):

+        self.playOrder = nextPlayOrder[0]

+        nextPlayOrder[0] = self.playOrder + 1

+        for child in self.children:

+            child.__assignPlayOrder(nextPlayOrder)

+

+class EpubItem:

+    def __init__(self):

+        self.id = ''

+        self.srcPath = ''

+        self.destPath = ''

+        self.mimeType = ''

+        self.html = ''

+

+class EpubBook:

+    def __init__(self):

+        self.loader = TemplateLoader('./epub/templates')

+

+        self.rootDir = ''

+        self.UUID = uuid.uuid1()

+

+        self.lang = 'en-US'

+        self.title = ''

+        self.creators = []

+        self.metaInfo = []

+

+        self.imageItems = {}

+        self.htmlItems = {}

+        self.cssItems = {}

+

+        self.coverImage = None

+        self.titlePage = None

+        self.tocPage = None

+

+        self.spine = []

+        self.guide = {}

+        self.tocMapRoot = TocMapNode()

+        self.lastNodeAtDepth = {0 : self.tocMapRoot}

+

+    def setTitle(self, title):

+        self.title = title

+

+    def setLang(self, lang):

+        self.lang = lang

+

+    def addCreator(self, name, role = 'aut'):

+        self.creators.append((name, role))

+

+    def addMeta(self, metaName, metaValue, **metaAttrs):

+        self.metaInfo.append((metaName, metaValue, metaAttrs))

+

+    def getMetaTags(self):

+        l = []

+        for metaName, metaValue, metaAttr in self.metaInfo:

+            beginTag = '<dc:%s' % metaName

+            if metaAttr:

+                for attrName, attrValue in metaAttr.iteritems():

+                    beginTag += ' opf:%s="%s"' % (attrName, attrValue)

+            beginTag += '>'

+            endTag = '</dc:%s>' % metaName

+            l.append((beginTag, metaValue, endTag))

+        return l

+

+    def getImageItems(self):

+        return sorted(self.imageItems.values(), key = lambda x : x.id)

+

+    def getHtmlItems(self):

+        return sorted(self.htmlItems.values(), key = lambda x : x.id)

+

+    def getCssItems(self):

+        return sorted(self.cssItems.values(), key = lambda x : x.id)

+

+    def getAllItems(self):

+        return sorted(itertools.chain(self.imageItems.values(), self.htmlItems.values(), self.cssItems.values()), key = lambda x : x.id)

+

+    def addImage(self, srcPath, destPath):

+        item = EpubItem()

+        item.id = 'image_%d' % (len(self.imageItems) + 1)

+        item.srcPath = srcPath

+        item.destPath = destPath

+        item.mimeType = mimetypes.guess_type(destPath)[0]

+        assert item.destPath not in self.imageItems

+        self.imageItems[destPath] = item

+        return item

+

+    def addHtmlForImage(self, imageItem):

+        tmpl = self.loader.load('image.html')

+        stream = tmpl.generate(book = self, item = imageItem)

+        html = stream.render('xhtml', doctype = 'xhtml11', drop_xml_decl = False)

+        return self.addHtml('', '%s.html' % imageItem.destPath, html)

+

+    def addHtml(self, srcPath, destPath, html):

+        item = EpubItem()

+        item.id = 'html_%d' % (len(self.htmlItems) + 1)

+        item.srcPath = srcPath

+        item.destPath = destPath

+        item.html = html

+        item.mimeType = 'application/xhtml+xml'

+        assert item.destPath not in self.htmlItems

+        self.htmlItems[item.destPath] = item

+        return item

+

+    def addCss(self, srcPath, destPath):

+        item = EpubItem()

+        item.id = 'css_%d' % (len(self.cssItems) + 1)

+        item.srcPath = srcPath

+        item.destPath = destPath

+        item.mimeType = 'text/css'

+        assert item.destPath not in self.cssItems

+        self.cssItems[item.destPath] = item

+        return item

+

+    def addCover(self, srcPath):

+        assert not self.coverImage

+        _, ext = os.path.splitext(srcPath)

+        destPath = 'cover%s' % ext

+        self.coverImage = self.addImage(srcPath, destPath)

+        #coverPage = self.addHtmlForImage(self.coverImage)

+        #self.addSpineItem(coverPage, False, -300)

+        #self.addGuideItem(coverPage.destPath, 'Cover', 'cover')

+

+    def __makeTitlePage(self):

+        assert self.titlePage

+        if self.titlePage.html:

+            return

+        tmpl = self.loader.load('title-page.html')

+        stream = tmpl.generate(book = self)

+        self.titlePage.html = stream.render('xhtml', doctype = 'xhtml11', drop_xml_decl = False)

+

+    def addTitlePage(self, html = ''):

+        assert not self.titlePage

+        self.titlePage = self.addHtml('', 'title-page.html', html)

+        self.addSpineItem(self.titlePage, True, -200)

+        self.addGuideItem('title-page.html', 'Title Page', 'title-page')

+

+    def __makeTocPage(self):

+        assert self.tocPage

+        tmpl = self.loader.load('toc.html')

+        stream = tmpl.generate(book = self)

+        self.tocPage.html = stream.render('xhtml', doctype = 'xhtml11', drop_xml_decl = False)

+

+    def addTocPage(self):

+        assert not self.tocPage

+        self.tocPage = self.addHtml('', 'toc.html', '')

+        self.addSpineItem(self.tocPage, False, -100)

+        self.addGuideItem('toc.html', 'Table of Contents', 'toc')

+

+    def getSpine(self):

+        return sorted(self.spine)

+

+    def addSpineItem(self, item, linear = True, order = None):

+        assert item.destPath in self.htmlItems

+        if order == None:

+            order = (max(order for order, _, _ in self.spine) if self.spine else 0) + 1

+        self.spine.append((order, item, linear))

+

+    def getGuide(self):

+        return sorted(self.guide.values(), key = lambda x : x[2])

+

+    def addGuideItem(self, href, title, type):

+        assert type not in self.guide

+        self.guide[type] = (href, title, type)

+

+    def getTocMapRoot(self):

+        return self.tocMapRoot

+

+    def getTocMapHeight(self):

+        return max(self.lastNodeAtDepth.keys())

+

+    def addTocMapNode(self, href, title, depth = None, parent = None):

+        node = TocMapNode()

+        node.href = href

+        node.title = title

+        if parent == None:

+            if depth == None:

+                parent = self.tocMapRoot

+            else:

+                parent = self.lastNodeAtDepth[depth - 1]

+        parent.children.append(node)

+        node.depth = parent.depth + 1

+        self.lastNodeAtDepth[node.depth] = node

+        return node

+

+    def makeDirs(self):

+        try:

+            os.makedirs(os.path.join(self.rootDir, 'META-INF'))

+        except OSError:

+            pass

+        try:

+            os.makedirs(os.path.join(self.rootDir, 'OEBPS'))

+        except OSError:

+            pass

+

+    def __writeContainerXML(self):

+        fout = open(os.path.join(self.rootDir, 'META-INF', 'container.xml'), 'w')

+        tmpl = self.loader.load('container.xml')

+        stream = tmpl.generate()

+        fout.write(stream.render('xml'))

+        fout.close()

+

+    def __writeTocNCX(self):

+        self.tocMapRoot.assignPlayOrder()

+        fout = open(os.path.join(self.rootDir, 'OEBPS', 'toc.ncx'), 'w')

+        tmpl = self.loader.load('toc.ncx')

+        stream = tmpl.generate(book = self)

+        fout.write(stream.render('xml'))

+        fout.close()

+

+    def __writeContentOPF(self):

+        fout = open(os.path.join(self.rootDir, 'OEBPS', 'content.opf'), 'w')

+        tmpl = self.loader.load('content.opf')

+        stream = tmpl.generate(book = self)

+        fout.write(stream.render('xml'))

+        fout.close()

+

+    def __writeItems(self):

+        for item in self.getAllItems():

+            #print item.id, item.destPath

+            if item.html:

+                fout = open(os.path.join(self.rootDir, 'OEBPS', item.destPath), 'w')

+                fout.write(item.html)

+                fout.close()

+            else:

+                shutil.copyfile(item.srcPath, os.path.join(self.rootDir, 'OEBPS', item.destPath))

+

+

+    def __writeMimeType(self):

+        fout = open(os.path.join(self.rootDir, 'mimetype'), 'w')

+        fout.write('application/epub+zip')

+        fout.close()

+

+    @staticmethod

+    def __listManifestItems(contentOPFPath):

+        tree = etree.parse(contentOPFPath)

+        return tree.xpath("//opf:manifest/opf:item/@href", namespaces = {'opf': 'http://www.idpf.org/2007/opf'})

+

+    @staticmethod

+    def createArchive(rootDir, outputPath):

+        fout = zipfile.ZipFile(outputPath, 'w')

+        cwd = os.getcwd()

+        os.chdir(rootDir)

+        fout.write('mimetype', compress_type = zipfile.ZIP_STORED)

+        fileList = []

+        fileList.append(os.path.join('META-INF', 'container.xml'))

+        fileList.append(os.path.join('OEBPS', 'content.opf'))

+        for itemPath in EpubBook.__listManifestItems(os.path.join('OEBPS', 'content.opf')):

+            fileList.append(os.path.join('OEBPS', itemPath))

+        for filePath in fileList:

+            fout.write(filePath, compress_type = zipfile.ZIP_DEFLATED)

+        fout.close()

+        os.chdir(cwd)

+

+    def createBook(self, rootDir):

+        if self.titlePage:

+            self.__makeTitlePage()

+        if self.tocPage:

+            self.__makeTocPage()

+        self.rootDir = rootDir

+        self.makeDirs()

+        self.__writeMimeType()

+        self.__writeItems()

+        self.__writeContainerXML()

+        self.__writeContentOPF()

+        self.__writeTocNCX()

+

+def test():

+    def getMinimalHtml(text):

+        return """<!DOCTYPE html PUBLIC "-//W3C//DTD XHtml 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

+<html xmlns="http://www.w3.org/1999/xhtml">

+<head><title>%s</title></head>

+<body><p>%s</p></body>

+</html>

+""" % (text, text)

+

+    book = EpubBook()

+    book.setTitle('Most Wanted Tips for Aspiring Young Pirates')

+    book.addCreator('Monkey D Luffy')

+    book.addCreator('Guybrush Threepwood')

+    book.addMeta('contributor', 'Smalltalk80', role = 'bkp')

+    book.addMeta('date', '2010', event = 'publication')

+

+    book.addTitlePage()

+    book.addTocPage()

+    book.addCover(r'D:\epub\blank.png')

+

+    book.addCss(r'main.css', 'main.css')

+

+    n1 = book.addHtml('', '1.html', getMinimalHtml('Chapter 1'))

+    n11 = book.addHtml('', '2.html', getMinimalHtml('Section 1.1'))

+    n111 = book.addHtml('', '3.html', getMinimalHtml('Subsection 1.1.1'))

+    n12 = book.addHtml('', '4.html', getMinimalHtml('Section 1.2'))

+    n2 = book.addHtml('', '5.html', getMinimalHtml('Chapter 2'))

+

+    book.addSpineItem(n1)

+    book.addSpineItem(n11)

+    book.addSpineItem(n111)

+    book.addSpineItem(n12)

+    book.addSpineItem(n2)

+

+    # You can use both forms to add TOC map

+    #t1 = book.addTocMapNode(n1.destPath, '1')

+    #t11 = book.addTocMapNode(n11.destPath, '1.1', parent = t1)

+    #t111 = book.addTocMapNode(n111.destPath, '1.1.1', parent = t11)

+    #t12 = book.addTocMapNode(n12.destPath, '1.2', parent = t1)

+    #t2 = book.addTocMapNode(n2.destPath, '2')

+

+    book.addTocMapNode(n1.destPath, '1')

+    book.addTocMapNode(n11.destPath, '1.1', 2)

+    book.addTocMapNode(n111.destPath, '1.1.1', 3)

+    book.addTocMapNode(n12.destPath, '1.2', 2)

+    book.addTocMapNode(n2.destPath, '2')

+

+    rootDir = r'd:\epub\test'

+    book.createBook(rootDir)

+    EpubBook.createArchive(rootDir, rootDir + '.epub')

+

+if __name__ == '__main__':

+    test()
\ No newline at end of file
diff --git a/source/epub/ez_epub.py b/source/epub/ez_epub.py
new file mode 100644
index 00000000..ecfd4f5a
--- /dev/null
+++ b/source/epub/ez_epub.py
@@ -0,0 +1,36 @@
+#! /usr/local/bin/python

+#-*- coding: utf-8 -*-

+

+import epub

+from genshi.template import TemplateLoader

+

+class Section:

+    def __init__(self):

+        self.title = ''

+        self.paragraphs = []

+        self.tocDepth = 1

+

+def makeBook(title, authors, sections, outputDir, lang='en-US', cover=None):

+    book = epub.EpubBook()

+    book.setLang(lang)

+    book.setTitle(title)

+    for author in authors:

+        book.addCreator(author)

+    #book.addTitlePage()

+    #book.addTocPage()

+    #if cover:

+        #book.addCover(cover)

+

+    loader = TemplateLoader('./epub/templates')

+    tmpl = loader.load('ez-section.html')

+

+    for i, section in enumerate(sections):

+        stream = tmpl.generate(section = section)

+        html = stream.render('xhtml', doctype='xhtml11', drop_xml_decl=False)

+        item = book.addHtml('', 's%d.html' % (i + 1), html)

+        book.addSpineItem(item)

+        book.addTocMapNode(item.destPath, section.title, section.tocDepth)

+

+    outputFile = outputDir + 'article.epub'

+    book.createBook(outputDir)

+    book.createArchive(outputDir, outputFile)
\ No newline at end of file
diff --git a/source/epub/templates/container.xml b/source/epub/templates/container.xml
new file mode 100644
index 00000000..eecf7a0d
--- /dev/null
+++ b/source/epub/templates/container.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<container xmlns="urn:oasis:names:tc:opendocument:xmlns:container" version="1.0">
+  <rootfiles>
+    <rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/>
+  </rootfiles>
+</container>
diff --git a/source/epub/templates/content.opf b/source/epub/templates/content.opf
new file mode 100644
index 00000000..67f3f5c6
--- /dev/null
+++ b/source/epub/templates/content.opf
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<opf:package xmlns:opf="http://www.idpf.org/2007/opf"
+    xmlns:dc="http://purl.org/dc/elements/1.1/"
+    xmlns:py="http://genshi.edgewall.org/"
+    unique-identifier="bookid" version="2.0">
+  <opf:metadata >
+    <dc:identifier id="bookid">urn:uuid:${book.UUID}</dc:identifier>
+    <dc:language>${book.lang}</dc:language>
+    <dc:title>${book.title}</dc:title>
+    <py:for each="name, role in book.creators">
+    <dc:creator opf:role="$role">$name</dc:creator>
+    </py:for>
+    <py:for each="beginTag, content, endTag in book.getMetaTags()">
+    ${Markup(beginTag)}$content${Markup(endTag)}
+    </py:for>
+    <opf:meta name="cover" content="${book.coverImage.id}" py:if="book.coverImage"/>
+  </opf:metadata>
+  <opf:manifest>
+    <opf:item id="ncxtoc" media-type="application/x-dtbncx+xml" href="toc.ncx"/>
+    <py:for each="item in book.getAllItems()">
+    <opf:item id="${item.id}" media-type="${item.mimeType}" href="${item.destPath}"/>
+    </py:for>
+  </opf:manifest>
+  <opf:spine toc="ncxtoc">
+    <py:for each="_, item, linear in book.getSpine()">
+    <opf:itemref idref="${item.id}" linear="${'yes' if linear else 'no'}"/>
+    </py:for>
+  </opf:spine>
+  <opf:guide py:if="book.guide">
+    <py:for each="href, title, type in book.getGuide()">
+    <opf:reference href="$href" type="$type" title="$title"/>
+    </py:for>
+  </opf:guide>
+</opf:package>
diff --git a/source/epub/templates/ez-section.html b/source/epub/templates/ez-section.html
new file mode 100644
index 00000000..0a715e7f
--- /dev/null
+++ b/source/epub/templates/ez-section.html
@@ -0,0 +1,17 @@
+<html xmlns="http://www.w3.org/1999/xhtml"
+    xmlns:py="http://genshi.edgewall.org/">
+<head>
+  <title>${section.title}</title>
+  <style type="text/css">
+h1 {
+  text-align: center;
+}
+  </style>
+</head>
+<body>
+  <h1>${section.title}</h1>
+  <py:for each="p in section.paragraphs">
+  <p>$p</p>
+  </py:for>
+</body>
+</html>
diff --git a/source/epub/templates/image.html b/source/epub/templates/image.html
new file mode 100644
index 00000000..9a838c7e
--- /dev/null
+++ b/source/epub/templates/image.html
@@ -0,0 +1,16 @@
+<html xmlns="http://www.w3.org/1999/xhtml"
+    xmlns:py="http://genshi.edgewall.org/">
+<head>
+  <title>${item.destPath}</title>
+  <style type="text/css">
+div, img {
+	border: 0;
+	margin: 0;
+	padding: 0;
+}
+  </style>
+</head>
+<body>
+  <div><img src="${item.destPath}" alt="${item.destPath}"/></div>
+</body>
+</html>
diff --git a/source/epub/templates/title-page.html b/source/epub/templates/title-page.html
new file mode 100644
index 00000000..de0f55f0
--- /dev/null
+++ b/source/epub/templates/title-page.html
@@ -0,0 +1,22 @@
+<html xmlns="http://www.w3.org/1999/xhtml"
+    xmlns:py="http://genshi.edgewall.org/">
+<head>
+  <title>${book.title}</title>
+  <style type="text/css">
+.title, .authors {
+  text-align: center;
+}
+span.author {
+  margin: 1em;
+}
+  </style>
+</head>
+<body>
+  <h1 class="title">${book.title}</h1>
+  <h3 class="authors">
+  <py:for each="creator, _ in book.creators">
+  <span class="author">$creator</span>
+  </py:for>
+  </h3>
+</body>
+</html>
diff --git a/source/epub/templates/toc.html b/source/epub/templates/toc.html
new file mode 100644
index 00000000..b14c9da3
--- /dev/null
+++ b/source/epub/templates/toc.html
@@ -0,0 +1,32 @@
+<html xmlns="http://www.w3.org/1999/xhtml"
+    xmlns:py="http://genshi.edgewall.org/">
+<head>
+  <title>${book.title}</title>
+  <style type="text/css">
+.tocEntry-1 {
+}
+.tocEntry-2 {
+	text-indent: 1em;
+}
+.tocEntry-3 {
+	text-indent: 2em;
+}
+.tocEntry-4 {
+	text-indent: 3em;
+}
+  </style>
+</head>
+<body>
+  <py:def function="tocEntry(node)">
+    <div class="tocEntry-${node.depth}">
+      <a href="${node.href}">${node.title}</a>
+    </div>
+    <py:for each="child in node.children">
+    ${tocEntry(child)}
+    </py:for>
+  </py:def>
+  <py:for each="child in book.getTocMapRoot().children">
+  ${tocEntry(child)}
+  </py:for>
+</body>
+</html>
diff --git a/source/epub/templates/toc.ncx b/source/epub/templates/toc.ncx
new file mode 100644
index 00000000..e7dd391a
--- /dev/null
+++ b/source/epub/templates/toc.ncx
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/"
+    xmlns:py="http://genshi.edgewall.org/"
+    version="2005-1">
+  <head>
+    <meta name="dtb:uid" content="urn:uuid:${book.UUID}"/>
+    <meta name="dtb:depth" content="${book.getTocMapHeight()}"/>
+    <meta name="dtb:totalPageCount" content="0"/>
+    <meta name="dtb:maxPageNumber" content="0"/>
+  </head>
+  <docTitle>
+    <text>${book.title}</text>
+  </docTitle>
+  <navMap>
+    <py:def function="navPoint(node)">
+    <navPoint id="navPoint-${node.playOrder}" playOrder="${node.playOrder}">
+      <navLabel><text>${node.title}</text></navLabel>
+      <content src="${node.href}"/>
+      <py:for each="child in node.children">
+      ${navPoint(child)}
+      </py:for>
+    </navPoint>
+    </py:def>
+    <py:for each="child in book.getTocMapRoot().children">
+    ${navPoint(child)}
+    </py:for>
+  </navMap>
+</ncx>
diff --git a/source/export.py b/source/export.py
new file mode 100644
index 00000000..a14d47c0
--- /dev/null
+++ b/source/export.py
@@ -0,0 +1,190 @@
+#! /usr/bin/env python
+#-*- coding: utf-8 -*-
+
+# pyAggr3g470r - A Web based news aggregator.
+# Copyright (C) 2010  Cédric Bonhomme - http://cedricbonhomme.org/
+#
+# For more information : http://bitbucket.org/cedricbonhomme/pyaggr3g470r/
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>
+
+__author__ = "Cedric Bonhomme"
+__version__ = "$Revision: 0.1 $"
+__date__ = "$Date: 2011/10/24 $"
+__copyright__ = "Copyright (c) Cedric Bonhomme"
+__license__ = "GPLv3"
+
+#
+# This file contains the export functions of pyAggr3g470r. Indeed
+# it is possible to export the database of articles in different formats:
+# - simple HTML webzine;
+# - text file;
+# - ePub file;
+# - PDF file.
+#
+
+import os
+import hashlib
+
+import utils
+
+
+htmlheader = '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">\n' + \
+        '<head>' + \
+        '\n\t<title>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' + \
+        '</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>'
+
+
+
+def export_html(feeds):
+    """
+    Export the articles given in parameter in a simple Webzine.
+    """
+    index = htmlheader
+    index += "<br />\n<ul>"
+    for feed in feeds.values():
+        # creates a folder for each stream
+        feed_folder = utils.path + "/var/export/webzine/" + \
+                utils.normalize_filename(feed.feed_id)
+        try:
+            os.makedirs(feed_folder)
+        except OSError:
+            # directories already exists (not a problem)
+            pass
+
+
+        index += """<li><a href="%s">%s</a></a></li>\n""" % \
+                        (feed.feed_id, feed.feed_title)
+
+        posts = htmlheader
+        for article in feed.articles.values():
+
+            post_file_name = os.path.normpath(feed_folder + "/" + article.article_id + ".html")
+            feed_index = os.path.normpath(feed_folder + "/index.html")
+
+            posts += article.article_date + " - " + \
+                    """<a href="./%s.html">%s</a>""" % \
+                            (article.article_id, article.article_title[:150]) + "<br />\n"
+
+
+            a_post = htmlheader
+            a_post += '\n<div style="width: 50%; overflow:hidden; text-align: justify; margin:0 auto">\n'
+            a_post += """<h1><a href="%s">%s</a></h1><br />""" % \
+                        (article.article_link, article.article_title)
+            a_post += article.article_description
+            a_post += "</div>\n<hr />\n"
+            a_post += """<br />\n<a href="%s">Complete story</a>\n<br />\n""" % (article.article_link,)
+            a_post += "<hr />\n" + htmlfooter
+
+
+            with open(post_file_name, "w") as f:
+                f.write(a_post)
+
+        posts +=  htmlfooter
+        with open(feed_index, "w") as f:
+            f.write(posts)
+
+    index += "\n</ul>\n<br />"
+    index += htmlfooter
+    with open(utils.path + "/var/export/webzine/" + "index.html", "w") as f:
+        f.write(index)
+
+def export_txt(feeds):
+    """
+    Export the articles given in parameter in text files.
+    """
+    for feed in feeds.values():
+            # creates folder for each stream
+            folder = utils.path + "/var/export/txt/" + \
+                    utils.normalize_filename(feed.feed_title.strip().replace(':', '').lower())
+            try:
+                os.makedirs(folder)
+            except OSError:
+                # directories already exists (not a problem)
+                pass
+
+            for article in feed.articles.values():
+                name = article.article_date.strip().replace(' ', '_')
+                name = os.path.normpath(folder + "/" + name + ".txt")
+
+                content = "Title: " + article.article_title + "\n\n\n"
+                content += utils.clear_string(article.article_description)
+
+                with open(name, "w") as f:
+                    f.write(content)
+
+def export_epub(feeds):
+    """
+    Export the articles given in parameter in ePub files.
+    """
+    from epub import ez_epub
+    for feed in feeds.values():
+            # creates folder for each stream
+            folder = utils.path + "/var/export/epub/" + \
+                    utils.normalize_filename(feed.feed_title.strip().replace(':', '').lower())
+            try:
+                os.makedirs(folder)
+            except OSError:
+                # directories already exists (not a problem)
+                pass
+
+            for article in feed.articles.values():
+                name = article.article_date.strip().replace(' ', '_')
+                name = os.path.normpath(folder + "/" + name + ".epub")
+
+                section = ez_epub.Section()
+                section.title = article.article_title.decode('utf-8')
+                section.paragraphs = [utils.clear_string(article.article_description).decode('utf-8')]
+                ez_epub.makeBook(article.article_title.decode('utf-8'), [feed.feed_title.decode('utf-8')], [section], \
+                                    name, lang='en-US', cover=None)
+
+def export_pdf(feeds):
+    """
+    Export the articles given in parameter in PDF files.
+    """
+    from xhtml2pdf import pisa
+    import cStringIO as StringIO
+    for feed in feeds.values():
+            # creates folder for each stream
+            folder = utils.path + "/var/export/pdf/" + \
+                    utils.normalize_filename(feed.feed_title.strip().replace(':', '').lower())
+            try:
+                os.makedirs(folder)
+            except OSError:
+                # directories already exists (not a problem)
+                pass
+
+            for article in feed.articles.values():
+                name = article.article_date.strip().replace(' ', '_')
+                name = os.path.normpath(folder + "/" + name + ".pdf")
+                
+                content = htmlheader
+                content += '\n<div style="width: 50%; overflow:hidden; text-align: justify; margin:0 auto">\n'
+                content += """<h1><a href="%s">%s</a></h1><br />""" % \
+                            (article.article_link, article.article_title)
+                content += article.article_description
+                content += "</div>\n<hr />\n"
+                content += htmlfooter
+
+                try:
+                    pdf = pisa.CreatePDF(StringIO.StringIO(content), file(name, "wb"))
+                except:
+                    pass
\ No newline at end of file
diff --git a/source/feedgetter.py b/source/feedgetter.py
new file mode 100755
index 00000000..e3469132
--- /dev/null
+++ b/source/feedgetter.py
@@ -0,0 +1,167 @@
+#! /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()
diff --git a/source/img/blogmarks.png b/source/img/blogmarks.png
new file mode 100755
index 00000000..2464e5bb
--- /dev/null
+++ b/source/img/blogmarks.png
diff --git a/source/img/check-news.png b/source/img/check-news.png
new file mode 100644
index 00000000..cce7df39
--- /dev/null
+++ b/source/img/check-news.png
diff --git a/source/img/cross.png b/source/img/cross.png
new file mode 100644
index 00000000..1514d51a
--- /dev/null
+++ b/source/img/cross.png
diff --git a/source/img/diaspora.png b/source/img/diaspora.png
new file mode 100644
index 00000000..fdf8bb72
--- /dev/null
+++ b/source/img/diaspora.png
diff --git a/source/img/digg.png b/source/img/digg.png
new file mode 100755
index 00000000..097c4600
--- /dev/null
+++ b/source/img/digg.png
diff --git a/source/img/email-follow.png b/source/img/email-follow.png
new file mode 100644
index 00000000..4505c610
--- /dev/null
+++ b/source/img/email-follow.png
diff --git a/source/img/favicon.png b/source/img/favicon.png
new file mode 100644
index 00000000..d4d38473
--- /dev/null
+++ b/source/img/favicon.png
diff --git a/source/img/feed-icon-28x28.png b/source/img/feed-icon-28x28.png
new file mode 100755
index 00000000..d64c669c
--- /dev/null
+++ b/source/img/feed-icon-28x28.png
diff --git a/source/img/following-article.png b/source/img/following-article.png
new file mode 100644
index 00000000..0e59e459
--- /dev/null
+++ b/source/img/following-article.png
diff --git a/source/img/hacker-news.png b/source/img/hacker-news.png
new file mode 100644
index 00000000..ce92765d
--- /dev/null
+++ b/source/img/hacker-news.png
diff --git a/source/img/heart-32x32.png b/source/img/heart-32x32.png
new file mode 100644
index 00000000..09b01cb5
--- /dev/null
+++ b/source/img/heart-32x32.png
diff --git a/source/img/heart.png b/source/img/heart.png
new file mode 100644
index 00000000..f36f3cfd
--- /dev/null
+++ b/source/img/heart.png
diff --git a/source/img/heart_open.png b/source/img/heart_open.png
new file mode 100644
index 00000000..e1c6e027
--- /dev/null
+++ b/source/img/heart_open.png
diff --git a/source/img/history.png b/source/img/history.png
new file mode 100644
index 00000000..2a57cc17
--- /dev/null
+++ b/source/img/history.png
diff --git a/source/img/identica.png b/source/img/identica.png
new file mode 100644
index 00000000..18b5bd2b
--- /dev/null
+++ b/source/img/identica.png
diff --git a/source/img/management.png b/source/img/management.png
new file mode 100644
index 00000000..7bcbc384
--- /dev/null
+++ b/source/img/management.png
diff --git a/source/img/mark-as-read.png b/source/img/mark-as-read.png
new file mode 100644
index 00000000..ffc90910
--- /dev/null
+++ b/source/img/mark-as-read.png
diff --git a/source/img/pinboard.png b/source/img/pinboard.png
new file mode 100644
index 00000000..6dddc10b
--- /dev/null
+++ b/source/img/pinboard.png
diff --git a/source/img/previous-article.png b/source/img/previous-article.png
new file mode 100644
index 00000000..fcd9bfd8
--- /dev/null
+++ b/source/img/previous-article.png
diff --git a/source/img/reddit.png b/source/img/reddit.png
new file mode 100755
index 00000000..2d615f2a
--- /dev/null
+++ b/source/img/reddit.png
diff --git a/source/img/scoopeo.png b/source/img/scoopeo.png
new file mode 100755
index 00000000..052c7dc8
--- /dev/null
+++ b/source/img/scoopeo.png
diff --git a/source/img/tuxrss.png b/source/img/tuxrss.png
new file mode 100644
index 00000000..d4d38473
--- /dev/null
+++ b/source/img/tuxrss.png
diff --git a/source/img/unread.png b/source/img/unread.png
new file mode 100644
index 00000000..d3a641c7
--- /dev/null
+++ b/source/img/unread.png
diff --git a/source/mongodb.py b/source/mongodb.py
new file mode 100644
index 00000000..d00b453e
--- /dev/null
+++ b/source/mongodb.py
@@ -0,0 +1,253 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+__author__ = "Cedric Bonhomme"
+__version__ = "$Revision: 0.1 $"
+__date__ = "$Date: 2012/03/03 $"
+__revision__ = "$Date: 2012/03/03 $"
+__copyright__ = "Copyright (c) Cedric Bonhomme"
+__license__ = "GPLv3"
+
+import time
+import pymongo
+
+from operator import itemgetter, attrgetter
+
+class Articles(object):
+    """
+    """
+    def __init__(self, url='localhost', port=27017):
+        """
+        Instantiates the connection.
+        """
+        self.connection = pymongo.connection.Connection(url, port)
+        self.db = self.connection.pyaggr3g470r
+
+    def add_collection(self, new_collection):
+        """
+        Creates a new collection for a new feed.
+        """
+        collection = self.db[new_collection["feed_id"]]
+        #collection.create_index([("feed_link", pymongo.ASCENDING)], {"unique":True, "sparse":True})
+        collection.insert(new_collection)
+
+    def add_articles(self, articles, feed_id):
+        """
+        Add article(s) in a collection.
+        """
+        collection = self.db[str(feed_id)]
+
+        collection.create_index([("article_date", pymongo.DESCENDING)], \
+                                        {"unique":False, "sparse":False})
+
+        for article in articles:
+            cursor = collection.find({"article_id":article["article_id"]})
+            if cursor.count() == 0:
+                collection.insert(article)
+
+    def delete_feed(self, feed_id):
+        """
+        Delete a collection (feed with all articles).
+        """
+        self.db.drop_collection(feed_id)
+
+    def delete_article(self, feed_id, article_id):
+        """
+        Delete an article.
+        """
+        collection = self.db[str(feed_id)]
+        collection.find_and_modify(query={"article_id":article_id}, remove=True)
+
+    def get_collection(self, feed_id):
+        """
+        """
+        return self.db[str(feed_id)].find().next()
+
+    def get_all_articles(self):
+        """
+        Return all articles from all collections.
+        """
+        articles = []
+        collections = self.db.collection_names()
+        for collection_name in collections:
+            collection = self.db[collection_name]
+            articles.extend([article for article in collection.find({'type':1})])
+        return articles
+
+    def get_article(self, feed_id, article_id):
+        """
+        """
+        collection = self.db[str(feed_id)]
+        return collection.find({"article_id":article_id}).next()
+
+    def get_all_collections(self, condition=None):
+        """
+        """
+        feeds = []
+        collections = self.db.collection_names()
+        for collection_name in collections:
+            if collection_name != "system.indexes":
+                if condition is None:
+                    cursor = self.db[collection_name].find({"type":0})
+                else:
+                    cursor = self.db[collection_name].find({"type":0, condition[0]:condition[1]})
+                if cursor.count() != 0:
+                    feeds.append(cursor.next())
+        feeds.sort(key = lambda elem: elem['feed_title'].lower())
+        return feeds
+
+    def get_articles_from_collection(self, feed_id, condition=None):
+        """
+        Return all the articles of a collection.
+        """
+        collection = self.db[str(feed_id)]
+        if condition is None:
+            cursor = collection.find({"type":1})
+        else:
+            cursor = collection.find({"type":1, condition[0]:condition[1]})
+        return cursor.sort([("article_date", pymongo.DESCENDING)])
+
+    def print_articles_from_collection(self, collection_id):
+        """
+        Print the articles of a collection.
+        """
+        collection = self.db[str(collection_id)]
+        cursor = collection.find({"type":1})
+        print "Article for the collection", collection_id
+        for d in cursor:
+            print d
+            print
+
+    def nb_articles(self, feed_id=None):
+        """
+        Return the number of users.
+        """
+        if feed_id is not None:
+            collection = self.db[feed_id]
+            cursor = collection.find({'type':1})
+            return cursor.count()
+        else:
+            nb_articles = 0
+            for feed_id in self.db.collection_names():
+               nb_articles += self.nb_articles(feed_id)
+            return nb_articles
+
+    def nb_favorites(self, feed_id=None):
+        if feed_id is not None:
+            collection = self.db[feed_id]
+            cursor = collection.find({'type':1, 'article_like':True})
+            return cursor.count()
+        else:
+            nb_favorites = 0
+            for feed_id in self.db.collection_names():
+                nb_favorites += self.nb_favorites(feed_id)
+            return nb_favorites
+
+    def nb_mail_notifications(self):
+        """
+        Return the number of subscribed feeds.
+        """
+        nb_mail_notifications = 0
+        for feed_id in self.db.collection_names():
+            collection = self.db[feed_id]
+            cursor = collection.find({'type':0, 'mail':True})
+            nb_mail_notifications += cursor.count()
+        return nb_mail_notifications
+
+    def nb_unread_articles(self, feed_id=None):
+        if feed_id is not None:
+            collection = self.db[feed_id]
+            cursor = collection.find({'article_readed':False})
+            return cursor.count()
+        else:
+            unread_articles = 0
+            for feed_id in self.db.collection_names():
+                unread_articles += self.nb_unread_articles(feed_id)
+            return unread_articles
+
+    def like_article(self, like, feed_id, article_id):
+        """
+        Like or unlike an article.
+        """
+        collection = self.db[str(feed_id)]
+        collection.update({"article_id": article_id}, {"$set": {"article_like": like}})
+
+    def mark_as_read(self, readed, feed_id=None, article_id=None):
+        """
+        """
+        if feed_id != None and article_id != None:
+            collection = self.db[str(feed_id)]
+            collection.update({"article_id": article_id, "article_readed":not readed}, {"$set": {"article_readed": readed}})
+        elif feed_id != None and article_id == None:
+            collection = self.db[str(feed_id)]
+            collection.update({"type": 1, "article_readed":not readed}, {"$set": {"article_readed": readed}}, multi=True)
+        else:
+            for feed_id in self.db.collection_names():
+                self.mark_as_read(readed, feed_id, None)
+
+    def list_collections(self):
+        """
+        List all collections (feed).
+        """
+        collections = self.db.collection_names()
+        return collections
+
+    # Functions on database
+    def drop_database(self):
+        """
+        Drop all the database
+        """
+        self.connection.drop_database('pyaggr3g470r')
+
+
+if __name__ == "__main__":
+    # Point of entry in execution mode.
+    articles = Articles()
+
+
+    # Create a collection for a stream
+    collection_dic = {"collection_id": 42,\
+                        "feed_image": "Image", \
+                        "feed_title": "Title", \
+                        "feed_link": "Link", \
+                        "site_title": "Site link", \
+                        "mail": True, \
+                        }
+    
+    #articles.add_collection(collection_dic)
+
+
+    
+    # Add an article in the newly created collection
+    article_dic1 = {"article_id": 51, \
+                    "article_date": "Today", \
+                    "article_link": "Link of the article", \
+                    "article_title": "The title", \
+                    "article_content": "The content of the article", \
+                    "article_readed": True, \
+                    "article_like": True \
+                    }
+
+    article_dic2 = {"article_id": 52, \
+                    "article_date": "Yesterday", \
+                    "article_link": "Link", \
+                    "article_title": "Hello", \
+                    "article_content": "The content of the article", \
+                    "article_readed": True, \
+                    "article_like": True \
+                    }
+    
+    #articles.add_articles([article_dic1, article_dic2], 42)
+
+
+    # Print articles of the collection
+    #articles.print_articles_from_collection("http://esr.ibiblio.org/?feed=rss2")
+
+    
+    print "All articles:"
+    #print articles.get_all_articles()
+
+
+    
+    # Drop the database
+    articles.drop_database()
\ No newline at end of file
diff --git a/source/pyAggr3g470r b/source/pyAggr3g470r
new file mode 100755
index 00000000..81f5cea0
--- /dev/null
+++ b/source/pyAggr3g470r
@@ -0,0 +1,130 @@
+#! /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: 0.1 $"
+__date__ = "$Date: 2011/06/20 $"
+__copyright__ = "Copyright (c) Cedric Bonhomme"
+__license__ = "GPLv3"
+
+# This control file is inspired from Forban: http://www.foo.be/forban.
+
+import os
+import sys
+import time
+import subprocess
+import platform
+import signal
+
+PATH = os.path.abspath(".")
+SERVICE = "pyAggr3g470r"
+
+def service_start(servicename = None):
+    if servicename is not None:
+        service = servicename + ".py"
+        proc =  subprocess.Popen(["python",service], stderr=subprocess.STDOUT, stdout=subprocess.PIPE)
+        time.sleep(0.15)
+        return proc.pid
+    return False
+
+def writepid (processname = None, pid = None):
+    pidpath = os.path.join(PATH,"var",processname+".pid")
+    if processname is not None and pid is not None:
+        f = open (pidpath,"w")
+        f.write(str(pid))
+        f.close()
+        return True
+    else:
+        return False
+
+def checkpid (servicename = None):
+    pidpath = os.path.join(PATH,"var",servicename+".pid")
+    if os.path.exists(pidpath):
+        return True
+    else:
+        return False
+
+def pidof(processname = None):
+    pidpath = os.path.join(PATH,"var",processname+".pid")
+    if processname is not None and os.path.exists(pidpath):
+        f = open (pidpath)
+        pid = f.read()
+        f.close()
+        return pid
+    else:
+        return False
+
+def rmpid (processname = None):
+    pidpath = os.path.join(PATH, "var", processname + ".pid")
+    if os.path.exists(pidpath):
+        os.unlink(pidpath)
+        return True
+    else:
+        return False
+
+def start():
+    if not checkpid(servicename = SERVICE):
+        pid = service_start(servicename = SERVICE)
+        writepid(processname = SERVICE, pid = pid)
+        print SERVICE + " is starting with pid: " + pidof(processname=SERVICE)
+    else:
+        print SERVICE + " could not be started (pid exists)"
+        retval=False 
+
+def stop():
+    print "Stopping pyAggr3g470r..."
+    retval=True
+    pid = pidof(processname=SERVICE)
+    if pid:
+        if platform.system() == "Windows":
+            import win32api
+            import win32con
+            phandle = win32api.OpenProcess(win32con.PROCESS_TERMINATE, 0, int(pid))
+            win32api.TerminateProcess(phandle, 0)
+            win32api.CloseHandle(phandle)
+            rmpid(processname=SERVICE)
+        else:
+            try:
+                os.kill(int(pid), signal.SIGKILL)
+            except OSError, e:
+                print SERVICE + " unsuccessfully stopped"
+                retval = False
+            print SERVICE
+            rmpid(processname=SERVICE)
+    return retval
+
+def usage():
+    print "pyAggr3g470r (start|stop|restart)"
+    exit (1)
+
+if __name__ == "__main__":
+    # Point of entry in execution mode.
+    if len(sys.argv) == 1:
+        usage()
+    elif sys.argv[1] == "start":
+        start()
+    elif sys.argv[1] == "stop":
+        stop()
+    elif sys.argv[1] == "restart":
+        stop()
+        start()
+    else:
+        usage()
diff --git a/source/pyAggr3g470r.py b/source/pyAggr3g470r.py
new file mode 100755
index 00000000..1284ea3e
--- /dev/null
+++ b/source/pyAggr3g470r.py
@@ -0,0 +1,1271 @@
+#! /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: 3.1 $"
+__date__ = "$Date: 2010/01/29 $"
+__revision__ = "$Date: 2012/03/09 $"
+__copyright__ = "Copyright (c) Cedric Bonhomme"
+__license__ = "GPLv3"
+
+#
+# This file contains the "Root" class which describes
+# all pages of pyAggr3g470r. These pages are:
+# - main page;
+# - management;
+# - history;
+# - favorites;
+# - notifications;
+# - unread;
+# - feed summary.
+#
+
+import os
+import re
+import time
+import cherrypy
+import calendar
+
+from collections import Counter
+import datetime
+
+import utils
+import export
+import mongodb
+import feedgetter
+from qrcode.pyqrnative.PyQRNative import QRCode, QRErrorCorrectLevel, CodeOverflowException
+from qrcode import qr
+
+
+def error_page_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(nb_unread_articles=""):
+    """
+    Return the header of the HTML page with the number of unread articles
+    in the 'title' HTML tag..
+    """
+    return '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">\n' + \
+        '<head>' + \
+        '\n\t<title>'+ nb_unread_articles +'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<a' + \
+        ' href="http://bitbucket.org/cedricbonhomme/pyaggr3g470r/" rel="noreferrer" target="_blank">' + \
+        'pyAggr3g470r (source code)</a>'
+
+
+class Root:
+    """
+    Root class.
+    All pages of pyAggr3g470r are described in this class.
+    """
+    def __init__(self):
+        """
+        """
+        self.mongo = mongodb.Articles(utils.MONGODB_ADDRESS, utils.MONGODB_PORT)
+
+    def index(self):
+        """
+        Main page containing the list of feeds and articles.
+        """
+        feeds = self.mongo.get_all_collections()
+        nb_unread_articles = self.mongo.nb_unread_articles()
+        nb_favorites = self.mongo.nb_favorites()
+        nb_mail_notifications = self.mongo.nb_mail_notifications()
+
+        # if there are unread articles, display the number in the tab of the browser
+        html = htmlheader((nb_unread_articles and \
+                            ['(' + str(nb_unread_articles) +') '] or \
+                            [""])[0])
+        html += htmlnav
+        html += self.create_right_menu()
+        html += """<div class="left inner">\n"""
+
+        if feeds:
+            html += '<a href="/management/"><img src="/img/management.png" title="Management" /></a>\n'
+            html += '<a href="/history/"><img src="/img/history.png" title="History" /></a>\n'
+            html += '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\n'
+
+            html += """<a href="/favorites/"><img src="/img/heart-32x32.png" title="Your favorites (%s)" /></a>\n""" % \
+                (nb_favorites,)
+
+            html += """<a href="/notifications/"><img src="/img/email-follow.png" title="Active e-mail notifications (%s)" /></a>\n""" % \
+                (nb_mail_notifications,)
+
+            html += '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'
+            if nb_unread_articles != 0:
+                html += '<a href="/mark_as_read/"><img src="/img/mark-as-read.png" title="Mark articles as read" /></a>\n'
+                html += """<a href="/unread/"><img src="/img/unread.png" title="Unread article(s): %s" /></a>\n""" % \
+                    (nb_unread_articles,)
+        html += '<a accesskey="F" href="/fetch/"><img src="/img/check-news.png" title="Check for news" /></a>\n'
+
+
+        # The main page display all the feeds.
+        for feed in feeds:
+            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["feed_link"], feed["feed_title"], \
+                        feed["feed_link"], feed["feed_image"])
+
+            # The main page display only 10 articles by feeds.
+            for article in self.mongo.get_articles_from_collection(feed["feed_id"])[:10]:
+                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 = "", ""
+
+                # display a heart for faved articles
+                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.split(' ')[:55])
+                else:
+                    description = "No description."
+                # Title of the article
+                article_title = article["article_title"]
+                if len(article_title) >= 110:
+                    article_title = article_title[:110] + " ..."
+
+                # a description line per article (date, title of the article and
+                # CSS description tooltips on mouse over)
+                html += article["article_date"].ctime() + " - " + \
+                        """<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"
+            html += "<br />\n"
+
+            # some options for the current feed
+            html += """<a href="/articles/%s">All articles</a>&nbsp;&nbsp;&nbsp;""" % (feed["feed_id"],)
+            html += """<a href="/feed/%s">Feed summary</a>&nbsp;&nbsp;&nbsp;""" % (feed["feed_id"],)
+            if self.mongo.nb_unread_articles(feed["feed_id"]) != 0:
+                html += """&nbsp;&nbsp;<a href="/mark_as_read/Feed_FromMainPage:%s">Mark all as read</a>""" % (feed["feed_id"],)
+                html += """&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="/unread/%s" title="Unread article(s)">Unread article(s) (%s)</a>""" % (feed["feed_id"], self.mongo.nb_unread_articles(feed["feed_id"]))
+            if feed["mail"] == "0":
+                html += """<br />\n<a href="/mail_notification/1:%s" title="By e-mail">Stay tuned</a>""" % (feed["feed_id"],)
+            else:
+                html += """<br />\n<a href="/mail_notification/0:%s" title="By e-mail">Stop staying tuned</a>""" %  (feed["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 += """<form method=get action="/search/"><input type="search" name="query" value="" placeholder="Search articles" maxlength=2048 autocomplete="on"></form>\n"""
+        html += "<hr />\n"
+        # insert the list of feeds in the menu
+        html += self.create_list_of_feeds()
+        html += "</div>\n"
+
+        return html
+
+    def create_list_of_feeds(self):
+        """
+        Create the list of feeds.
+        """
+        feeds = self.mongo.get_all_collections()
+        html = """<div class="nav_container">Your feeds (%s):<br />\n""" % len(feeds)
+        for feed in feeds:
+            if self.mongo.nb_unread_articles(feed["feed_id"]) != 0:
+                # not readed articles are in bold
+                not_read_begin, not_read_end = "<b>", "</b>"
+            else:
+                not_read_begin, not_read_end = "", ""
+            html += """<div><a href="/#%s">%s</a> (<a href="/unread/%s" title="Unread article(s)">%s%s%s</a> / %s)</div>""" % \
+                            (feed["feed_id"], feed["feed_title"], feed["feed_id"], not_read_begin, \
+                            self.mongo.nb_unread_articles(feed["feed_id"]), not_read_end, self.mongo.nb_articles(feed["feed_id"]))
+        return html + "</div>"
+
+
+    def management(self, max_nb_articles=5):
+        """
+        Management page.
+        Allows adding and deleting feeds. Export functions of the MongoDB data base
+        and display some statistics.
+        """
+        feeds = self.mongo.get_all_collections()
+        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()
+        
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">\n"""
+        html += "<h1>Add Feeds</h1>\n"
+        # Form: add a feed
+        html += """<form method=get action="/add_feed/"><input type="url" name="url" placeholder="URL of a site" maxlength=2048 autocomplete="off">\n<input type="submit" value="OK"></form>\n"""
+
+        if feeds:
+            # Form: delete a feed
+            html += "<h1>Delete Feeds</h1>\n"
+            html += """<form method=get action="/remove_feed/"><select name="feed_id">\n"""
+            for feed in feeds:
+                html += """\t<option value="%s">%s</option>\n""" % (feed["feed_id"], feed["feed_title"])
+            html += """</select><input type="submit" value="OK"></form>\n"""
+
+            html += """<p>Active e-mail notifications: <a href="/notifications/">%s</a></p>\n""" % \
+                        (nb_mail_notifications,)
+            html += """<p>You like <a href="/favorites/">%s</a> article(s).</p>\n""" % \
+                        (nb_favorites, )
+
+        html += "<hr />\n"
+
+        # Informations about the data base of articles
+        html += """<p>%s article(s) are loaded from the database with
+                <a href="/unread/">%s unread article(s)</a>.<br />\n""" % \
+                    (nb_articles, nb_unread_articles)
+        #html += """Database: %s.\n<br />Size: %s bytes.<br />\n""" % \
+                    #(os.path.abspath(utils.sqlite_base), os.path.getsize(utils.sqlite_base))
+        html += '<a href="/statistics/">Advanced statistics.</a></p>\n'
+
+        html += """<form method=get action="/fetch/">\n<input type="submit" value="Fetch all feeds"></form>\n"""
+        html += """<form method=get action="/drop_base">\n<input type="submit" value="Delete all articles"></form>\n"""
+
+
+        html += '<form method=get action="/set_max_articles/">\n'
+        html += "For each feed only load the "
+        html += """<input type="number" name="max_nb_articles" value="%s" min="1" step="1" size="2">\n""" % (max_nb_articles)
+        html += " last articles."
+        if utils.MAX_NB_ARTICLES == -1:
+            html += "<br />All articles are currently loaded.\n"
+        else:
+            html += "<br />For each feed only " + str(utils.MAX_NB_ARTICLES) + " articles are currently loaded. "
+            html += '<a href="/set_max_articles/-1">Load all articles.</a><br />\n'
+        html += "</form>\n"
+
+        # Export functions
+        html += "<h1>Export articles</h1>\n\n"
+        html += """<form method=get action="/export/"><select name="export_method">\n"""
+        html += """\t<option value="export_html" selected='selected'>HTML (simple Webzine)</option>\n"""
+        html += """\t<option value="export_epub">ePub</option>\n"""
+        html += """\t<option value="export_pdf">PDF</option>\n"""
+        html += """\t<option value="export_txt">Text</option>\n"""
+        html += """</select>\n\t<input type="submit" value="Export">\n</form>\n"""
+        html += "<hr />"
+        html += htmlfooter
+        return html
+
+    management.exposed = True
+
+
+    def statistics(self, word_size=6):
+        """
+        More advanced statistics.
+        """
+        articles = self.mongo.get_all_articles()
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">\n"""
+
+        # Some statistics (most frequent word)
+        if articles:
+            top_words = utils.top_words(articles, n=50, size=int(word_size))
+            html += "<h1>Statistics</h1>\n<br />\n"
+            # Tags cloud
+            html += 'Minimum size of a word:'
+            html += '<form method=get action="/statistics/">'
+            html += """<input type="number" name="word_size" value="%s" min="2" max="15" step="1" size="2">""" % (word_size)
+            html += '<input type="submit" value="OK"></form>\n'
+            html += '<br /><h3>Tag cloud</h3>\n'
+            html += '<div style="width: 35%; overflow:hidden; text-align: justify">' + \
+                        utils.tag_cloud(top_words) + '</div>'
+            html += "<hr />\n"
+
+        html += htmlfooter
+        return html
+
+    statistics.exposed = True
+
+
+    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(':')
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        html += """<h1>Articles containing the string <i>%s</i></h1><br />""" % (query,)
+
+        if feed_id is not None:
+            for article in self.feeds[feed_id].articles.values():
+                article_content = utils.clear_string(article.article_description)
+                if not article_content:
+                    utils.clear_string(article.article_title)
+                if wordre.findall(article_content) != []:
+                    if article.article_readed == "0":
+                        # not readed articles are in bold
+                        not_read_begin, not_read_end = "<b>", "</b>"
+                    else:
+                        not_read_begin, not_read_end = "", ""
+
+                    html += article.article_date + " - " + not_read_begin + \
+                            """<a href="/article/%s:%s" rel="noreferrer" target="_blank">%s</a>""" % \
+                                    (feed_id, article.article_id, article.article_title) + \
+                            not_read_end + """<br />\n"""
+        else:
+            feeds = self.mongo.get_all_collections()
+            for feed in feeds:
+                new_feed_section = True
+                for article in self.mongo.get_articles_from_collection(feed["feed_id"]):
+                    article_content = utils.clear_string(article["article_content"])
+                    if not article_content:
+                        utils.clear_string(article["article_title"])
+                    if wordre.findall(article_content) != []:
+                        if new_feed_section is True:
+                            new_feed_section = False
+                            html += """<h2><a href="/articles/%s" rel="noreferrer" target="_blank">%s</a><a href="%s" rel="noreferrer" target="_blank"><img src="%s" width="28" height="28" /></a></h2>\n""" % \
+                                (feed["feed_id"], feed["feed_title"], feed["feed_link"], feed["feed_image"])
+
+                        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 = "", ""
+
+                        # display a heart for faved articles
+                        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."
+
+                        # a description line per article (date, title of the article and
+                        # CSS description tooltips on mouse over)
+                        html += article["article_date"].ctime() + " - " + \
+                                """<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["article_title"][:150], not_read_end, description) + like + "<br />\n"
+        html += "<hr />"
+        html += htmlfooter
+        return html
+
+    search.exposed = True
+
+
+    def fetch(self):
+        """
+        Fetch all feeds.
+        """
+        feed_getter = feedgetter.FeedGetter()
+        feed_getter.retrieve_feed()
+        return self.index()
+
+    fetch.exposed = True
+
+
+    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_collection(feed_id)
+            articles = self.mongo.get_articles_from_collection(feed_id)
+            article = self.mongo.get_article(feed_id, article_id)
+        except:
+            return self.error_page("Bad URL. This article do not exists.")
+        html = htmlheader()
+        html += htmlnav
+        html += """<div>"""
+
+        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"])
+
+        html += '\n<div style="width: 50%; overflow:hidden; text-align: justify; margin:0 auto">\n'
+        # Title of the article
+        html += """<h1><i>%s</i> from <a href="/feed/%s">%s</a></h1>\n<br />\n""" % \
+                        (article["article_title"], feed_id, feed["feed_title"])
+        if article["article_like"] == True:
+            html += """<a href="/like/0:%s:%s"><img src="/img/heart.png" title="I like this article!" /></a>""" % \
+                        (feed_id, article["article_id"])
+        else:
+            html += """<a href="/like/1:%s:%s"><img src="/img/heart_open.png" title="Click if you like this article." /></a>""" % \
+                        (feed_id, article["article_id"])
+        html += """&nbsp;&nbsp;<a href="/delete_article/%s:%s"><img src="/img/cross.png" title="Delete this article" /></a>""" % \
+                        (feed_id, article["article_id"])
+        html += "<br /><br />"
+
+        # 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)
+
+            html += description + "\n<br /><br /><br />"
+        else:
+            html += "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:
+                if len(utils.clear_string(description)) > 4296:
+                    raise Exception()
+                f = qr.QRUrl(url = utils.clear_string(description))
+                f.make()
+            except:
+                f = qr.QRUrl(url = article["article_link"])
+                f.make()
+            f.save("./var/qrcode/"+article_id+".png")
+
+        # Previous and following articles
+        articles_list = articles.distinct("article_id")
+        try:
+            following = articles[articles_list.index(article_id) - 1]
+            html += """<div style="float:right;"><a href="/article/%s:%s" title="%s"><img src="/img/following-article.png" /></a></div>\n""" % \
+                (feed_id, following["article_id"], following["article_title"])
+        except Exception, e:
+            print e
+        try:
+            previous = articles[articles_list.index(article_id) + 1]
+        except:
+            previous = articles[0]
+        finally:
+            html += """<div style="float:left;"><a href="/article/%s:%s" title="%s"><img src="/img/previous-article.png" /></a></div>\n""" % \
+                (feed_id, previous["article_id"], previous["article_title"])
+
+        html += "\n</div>\n"
+
+        # Footer menu
+        html += "<hr />\n"
+        html += """\n<a href="/plain_text/%s:%s">Plain text</a>\n""" % (feed_id, article["article_id"])
+        html += """ - <a href="/epub/%s:%s">Export to EPUB</a>\n""" % (feed_id, article["article_id"])
+        html += """<br />\n<a href="%s">Complete story</a>\n<br />\n""" % (article["article_link"],)
+
+        # Share this article:
+        html += "Share this article:<br />\n"
+        # on Diaspora
+        html += """<a href="javascript:(function(){f='https://%s/bookmarklet?url=%s&amp;title=%s&amp;notes=%s&amp;v=1&amp;';a=function(){if(!window.open(f+'noui=1&amp;jump=doclose','diasporav1','location=yes,links=no,scrollbars=no,toolbar=no,width=620,height=250'))location.href=f+'jump=yes'};if(/Firefox/.test(navigator.userAgent)){setTimeout(a,0)}else{a()}})()">\n\t
+                <img src="/img/diaspora.png" title="Share on Diaspora" /></a>\n""" % \
+                        (utils.DIASPORA_POD, article["article_link"], article["article_title"], "via pyAggr3g470r")
+
+        # on Identi.ca
+        html += """\n\n<a href="http://identi.ca/index.php?action=newnotice&status_textarea=%s: %s" title="Share on Identi.ca" target="_blank"><img src="/img/identica.png" /></a>""" % \
+                        (article["article_title"], article["article_link"])
+
+        # on Hacker News
+        html += """\n\n<a href='javascript:window.location="http://news.ycombinator.com/submitlink?u="+encodeURIComponent("%s")+"&t="+encodeURIComponent("%s")'><img src="/img/hacker-news.png" title="Share on Hacker News" /></a>""" % \
+                        (article["article_link"], article["article_title"])
+                        
+        # on Pinboard
+        html += """\n\n\t<a href="https://api.pinboard.in/v1/posts/add?url=%s&description=%s"
+                rel="noreferrer" target="_blank">\n
+                <img src="/img/pinboard.png" title="Share on Pinboard" /></a>""" % \
+                        (article["article_link"], article["article_title"])
+
+        # on Digg
+        html += """\n\n\t<a href="http://digg.com/submit?url=%s&title=%s"
+                rel="noreferrer" target="_blank">\n
+                <img src="/img/digg.png" title="Share on Digg" /></a>""" % \
+                        (article["article_link"], article["article_title"])
+        # on reddit
+        html += """\n\n\t<a href="http://reddit.com/submit?url=%s&title=%s"
+                rel="noreferrer" target="_blank">\n
+                <img src="/img/reddit.png" title="Share on reddit" /></a>""" % \
+                        (article["article_link"], article["article_title"])
+        # on Scoopeo
+        html += """\n\n\t<a href="http://scoopeo.com/scoop/new?newurl=%s&title=%s"
+                rel="noreferrer" target="_blank">\n
+                <img src="/img/scoopeo.png" title="Share on Scoopeo" /></a>""" % \
+                        (article["article_link"], article["article_title"])
+        # on Blogmarks
+        html += """\n\n\t<a href="http://blogmarks.net/my/new.php?url=%s&title=%s"
+                rel="noreferrer" target="_blank">\n
+                <img src="/img/blogmarks.png" title="Share on Blogmarks" /></a>""" % \
+                        (article["article_link"], article["article_title"])
+
+        # Google +1 button
+        html += """\n\n<g:plusone size="standard" count="true" href="%s"></g:plusone>""" % \
+                        (article["article_link"],)
+
+
+        # QRCode (for smartphone)
+        html += """<br />\n<a href="/var/qrcode/%s.png"><img src="/var/qrcode/%s.png" title="Share with your smartphone" width="500" height="500" /></a>""" % (article_id, article_id)
+        html += "<hr />\n" + htmlfooter
+        return html
+
+    article.exposed = True
+
+
+    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_collection(feed_id)
+            articles = self.mongo.get_articles_from_collection(feed_id)
+        except KeyError:
+            return self.error_page("This feed do not exists.")
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        html += "<p>The feed <b>" + feed["feed_title"] + "</b> contains <b>" + str(self.mongo.nb_articles(feed_id)) + "</b> articles. "
+        html += "Representing " + str((round(float(self.mongo.nb_articles(feed_id)) / 1000, 4)) * 100) + " % of the total " #hack
+        html += "(" + str(1000) + ").</p>"
+        if articles != []:
+            html += "<p>" + (self.mongo.nb_unread_articles(feed_id) == 0 and ["All articles are read"] or [str(self.mongo.nb_unread_articles(feed_id)) + \
+                    " unread article" + (self.mongo.nb_unread_articles(feed_id) == 1 and [""] or ["s"])[0]])[0] + ".</p>"
+        if feed["mail"] == True:
+                html += """<p>You are receiving articles from this feed to the address: <a href="mail:%s">%s</a>. """ % \
+                        (utils.mail_to, utils.mail_to)
+                html += """<a href="/mail_notification/0:%s">Stop</a> receiving articles from this feed.</p>""" % \
+                        (feed[feed_id], )
+
+        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
+            html += "<p>The last article was posted " + str(abs(delta_today.days))  + " day(s) ago.</p>"
+            if delta.days > 0:
+                html += """<p>Daily average: %s,""" % (str(round(float(self.mongo.nb_articles(feed_id))/abs(delta.days), 2)),)
+                html += """ between the %s and the %s.</p>\n""" % \
+	              (str(articles[self.mongo.nb_articles(feed_id)-2]["article_date"])[:10], str(articles[0]["article_date"])[:10])
+
+        html += "<br /><h1>Recent articles</h1>"
+        for article in articles[:10]:
+            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 = "", ""
+
+            # display a heart for faved articles
+            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) >= 110:
+                article_title = article_title[:110] + " ..."
+
+            # a description line per article (date, title of the article and
+            # CSS description tooltips on mouse over)
+            html += article["article_date"].ctime() + " - " + \
+                    """<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"
+        html += "<br />\n"
+        html += """<a href="/articles/%s">All articles</a>&nbsp;&nbsp;&nbsp;""" % (feed["feed_id"],)
+
+        favs = [article for article in articles if article["article_like"] == True]
+        if len(favs) != 0:
+            html += "<br /></br /><h1>Your favorites articles for this feed</h1>"
+            for article in favs:
+                if article["like"] == True:
+                    # 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"].ctime() + " - " + \
+                            """<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)
+
+
+        # This section enables the user to edit informations about
+        # the current feed:
+        #  - feed logo;
+        #  - feed name;
+        #  - URL of the feed (not the site);
+        html += "<br />\n<h1>Edit this feed</h1>\n"
+        html += '\n\n<form method=post action="/change_feed_name/">' + \
+                '<input type="text" name="new_feed_name" value="" ' + \
+                'placeholder="Enter a new name (then press Enter)." maxlength=2048 autocomplete="on" size="50" />' + \
+                """<input type="hidden" name="feed_url" value="%s" /></form>\n""" % \
+                    (feed["feed_link"],)
+        html += '\n\n<form method=post action="/change_feed_url/">' + \
+                '<input type="url" name="new_feed_url" value="" ' + \
+                'placeholder="Enter a new URL in order to retrieve articles (then press Enter)." maxlength=2048 autocomplete="on" size="50" />' + \
+                """<input type="hidden" name="old_feed_url" value="%s" /></form>\n""" % \
+                    (feed["feed_link"],)
+        html += '\n\n<form method=post action="/change_feed_logo/">' + \
+                '<input type="url" name="new_feed_logo" value="" ' + \
+                'placeholder="Enter the URL of the logo (then press Enter)." maxlength=2048 autocomplete="on" size="50" />' + \
+                """<input type="hidden" name="feed_url" value="%s" /></form>\n""" % \
+                    (feed["feed_link"],)
+
+        dic = {}
+        top_words = utils.top_words(articles = self.mongo.get_articles_from_collection(feed_id), n=50, size=int(word_size))
+        html += "</br /><h1>Tag cloud</h1>\n<br />\n"
+        # Tags cloud
+        html += 'Minimum size of a word:'
+        html += """<form method=get action="/feed/%s">""" % (feed["feed_id"],)
+        html += """<input type="number" name="word_size" value="%s" min="2" max="15" step="1" size="2">""" % (word_size,)
+        html += '<input type="submit" value="OK"></form>\n'
+        html += '<div style="width: 35%; overflow:hidden; text-align: justify">' + \
+                    utils.tag_cloud(top_words) + '</div>'
+
+        html += "<br />"
+        html += "<hr />"
+        html += htmlfooter
+        return html
+
+    feed.exposed = True
+
+
+    def articles(self, feed_id):
+        """
+        This page displays all articles of a feed.
+        """
+        try:
+            feed = self.mongo.get_collection(feed_id)
+            articles = self.mongo.get_articles_from_collection(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="/search/%s"><input type="search" name="query" value="" placeholder="Search this feed" maxlength=2048 autocomplete="on"></form>\n""" % ("Feed:"+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 />""" % (feed["feed_title"],)
+
+        for article in articles:
+
+            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."
+
+            # a description line per article (date, title of the article and
+            # CSS description tooltips on mouse over)
+            html += article["article_date"].ctime() + " - " + \
+                    """<a class="tooltip" href="/article/%s:%s" rel="noreferrer" target="_blank">%s%s%s<span class="classic">%s</span></a>""" % \
+                            (feed_id, article["article_id"], not_read_begin, \
+                            article["article_title"][:150], not_read_end, description) + like + "<br />\n"
+
+        html += """\n<h4><a href="/">All feeds</a></h4>"""
+        html += "<hr />\n"
+        html += htmlfooter
+        return html
+
+    articles.exposed = True
+
+
+    def unread(self, feed_id=""):
+        """
+        This page displays all unread articles of a feed.
+        """
+        feeds = self.mongo.get_all_collections()
+        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_from_collection(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"].ctime() + " - " + \
+                                """<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_collection(feed_id)
+                except:
+                    self.error_page("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_from_collection(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"].ctime() + " - " + \
+                            """<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
+
+
+    def history(self, query="all", m=""):
+        """
+        This page enables to browse articles chronologically.
+        """
+        feeds = self.mongo.get_all_collections()
+        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_from_collection(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) >= 110:
+                                    article_title = article_title[:110] + " ..."
+
+                                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["feed_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 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
+
+
+    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_collection(feed_id)
+            article = self.mongo.get_article(feed_id, article_id)
+        except:
+            return self.error_page("Bad URL. This article do not exists.")
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        html += """<h1><i>%s</i> from <a href="/articles/%s">%s</a></h1>\n<br />\n"""% \
+                            (article["article_title"], feed_id, feed["feed_title"])
+        description = utils.clear_string(article["article_content"])
+        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 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])
+        if param == "" or param == "Feed_FromMainPage":
+            return self.index()
+        elif param == "Feed":
+            return self.articles(identifiant)
+
+    mark_as_read.exposed = True
+
+
+    def notifications(self):
+        """
+        List all active e-mail notifications.
+        """
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        feeds = self.mongo.get_all_collections(condition=("mail",True))
+        if feeds != []:
+            html += "<h1>You are receiving e-mails for the following feeds:</h1>\n"
+            for feed in feeds:
+                html += """\t<a href="/articles/%s">%s</a> - <a href="/mail_notification/0:%s">Stop</a><br />\n""" % \
+                        (feed["feed_id"], feed["feed_title"], feed["feed_id"])
+        else:
+            html += "<p>No active notifications.<p>\n"
+        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
+
+    notifications.exposed = True
+
+
+    def mail_notification(self, param):
+        """
+        Enable or disable to notifications of news for a feed.
+        """
+        try:
+            action, feed_id = param.split(':')
+            feed = self.feeds[feed_id]
+        except:
+            return self.error_page("Bad URL. This feed do not exists.")
+
+        return self.index()
+
+    mail_notification.exposed = True
+
+
+    def like(self, param):
+        """
+        Mark or unmark an article as favorites.
+        """
+        try:
+            like, feed_id, article_id = param.split(':')
+            articles = self.mongo.get_article(feed_id, article_id)
+        except:
+            return self.error_page("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
+
+
+    def favorites(self):
+        """
+        List of favorites articles
+        """
+        feeds = self.mongo.get_all_collections()
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        html += "<h1>Your favorites articles</h1>"
+        for feed in feeds:
+            new_feed_section = True
+            for article in self.mongo.get_articles_from_collection(feed["feed_id"]):
+                if article["article_like"] == True:
+                    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["feed_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"].ctime() + " - " + \
+                            """<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)
+        html += "<hr />\n"
+        html += htmlfooter
+        return html
+
+    favorites.exposed = True
+
+
+    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_page("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
+
+
+    def remove_feed(self, feed_id):
+        """
+        Remove a feed from the file feed.lst and from the MongoDB database.
+        """
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+
+        feed = self.mongo.get_collection(feed_id)
+        self.mongo.delete_feed(feed_id)
+        utils.remove_feed(feed["feed_link"])
+
+        html += """<p>All articles from the feed <i>%s</i> are now removed from the base.</p><br />""" % \
+                (feed["feed_title"],)
+        html += """<a href="/management/">Back to the management page.</a><br />\n"""
+        html += "<hr />\n"
+        html += htmlfooter
+        return html
+
+    remove_feed.exposed = True
+
+
+    def change_feed_url(self, new_feed_url, old_feed_url):
+        """
+        Enables to change the URL of a feed already present in the database.
+        """
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        utils.change_feed_url(old_feed_url, new_feed_url)
+        html += "<p>The URL of the feed has been changed.</p>"
+        html += "<hr />\n"
+        html += htmlfooter
+        return html
+
+    change_feed_url.exposed = True
+
+    def change_feed_name(self, feed_url, new_feed_name):
+        """
+        Enables to change the name of a feed.
+        """
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        utils.change_feed_name(feed_url, new_feed_name)
+        html += "<p>The name of the feed has been changed.</p>"
+        html += "<hr />\n"
+        html += htmlfooter
+        return html
+
+    change_feed_name.exposed = True
+
+    def change_feed_logo(self, feed_url, new_feed_logo):
+        """
+        Enables to change the name of a feed.
+        """
+        html = htmlheader()
+        html += htmlnav
+        html += """<div class="left inner">"""
+        utils.change_feed_logo(feed_url, new_feed_logo)
+        html += "<p>The logo of the feed has been changed.</p>"
+        html += "<hr />\n"
+        html += htmlfooter
+        return html
+
+    change_feed_logo.exposed = True
+
+
+    def set_max_articles(self, max_nb_articles=1):
+        """
+        Enables to set the maximum of articles to be loaded per feed from
+        the data base.
+        """
+        if max_nb_articles < -1 or max_nb_articles == 0:
+            max_nb_articles = 1
+        utils.MAX_NB_ARTICLES = int(max_nb_articles)
+        return self.management()
+
+    set_max_articles.exposed = True
+
+
+    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_page("Bad URL. This article do not exists.")
+
+        return self.index()
+
+    delete_article.exposed = True
+
+
+    def drop_base(self):
+        """
+        Delete all articles.
+        """
+        utils.drop_base()
+        return self.management()
+
+    drop_base.exposed = True
+
+
+    def export(self, export_method):
+        """
+        Export articles currently loaded from the MongoDB database with
+        the appropriate function of the 'export' module.
+        """
+        try:
+            getattr(export, export_method)(self.feeds)
+        except Exception, e:
+            return self.error_page(e)
+        return self.management()
+
+    export.exposed = True
+
+
+    def epub(self, param):
+        """
+        Export an article to EPUB.
+        """
+        try:
+            from epub import ez_epub
+        except Exception, e:
+            return self.error_page(e)
+        try:
+            feed_id, article_id = param.split(':')
+        except:
+            return self.error_page("Bad URL.")
+        try:
+            feed = self.feeds[feed_id]
+            article = feed.articles[article_id]
+        except:
+            self.error_page("This article do not exists.")
+        try:
+            folder = utils.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_description).decode('utf-8')]
+        ez_epub.makeBook(article.article_title.decode('utf-8'), [feed.feed_title.decode('utf-8')], [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
+    print "Launching pyAggr3g470r..."
+
+    root = Root()
+    root.favicon_ico = cherrypy.tools.staticfile.handler(filename=os.path.join(utils.path + "/img/favicon.png"))
+    cherrypy.config.update({ 'server.socket_port': 12556, 'server.socket_host': "0.0.0.0"})
+    cherrypy.config.update({'error_page.404': error_page_404})
+    _cp_config = {'request.error_response': handle_error}
+
+    cherrypy.quickstart(root, "/" ,config=utils.path + "/cfg/cherrypy.cfg")
\ No newline at end of file
diff --git a/source/sqlite2mongo.py b/source/sqlite2mongo.py
new file mode 100644
index 00000000..633fb8f9
--- /dev/null
+++ b/source/sqlite2mongo.py
@@ -0,0 +1,78 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import hashlib
+import sqlite3
+import mongodb
+
+import utils
+
+from datetime import datetime
+
+SQLITE_BASE = "./var/feed.db"
+
+
+def sqlite2mongo():
+    """
+    Load feeds and articles in a dictionary.
+    """
+    mongo = mongodb.Articles()
+    list_of_feeds = []
+    list_of_articles = []
+
+    try:
+        conn = sqlite3.connect(SQLITE_BASE, isolation_level = None)
+        c = conn.cursor()
+        list_of_feeds = c.execute("SELECT * FROM feeds").fetchall()
+    except:
+        pass
+
+    if list_of_feeds != []:
+        # Walk through the list of feeds
+        for feed in list_of_feeds:
+            try:
+                list_of_articles = c.execute(\
+                        "SELECT * FROM articles WHERE feed_link='" + \
+                        feed[2] + "'").fetchall()
+            except:
+                continue
+            sha1_hash = hashlib.sha1()
+            sha1_hash.update(feed[2].encode('utf-8'))
+            feed_id = sha1_hash.hexdigest()
+
+            new_collection = {"feed_id" : feed_id.encode('utf-8'), \
+                                "type": 0, \
+                                "feed_image" : feed[3].encode('utf-8'), \
+                                "feed_title" : feed[0].encode('utf-8'), \
+                                "feed_link" : feed[2].encode('utf-8'), \
+                                "site_link" : feed[1].encode('utf-8'), \
+                                "mail" : feed[4]=="1"}
+
+            mongo.add_collection(new_collection)
+
+            if list_of_articles != []:
+                # Walk through the list of articles for the current feed.
+                articles = []
+                for article in list_of_articles:
+                    sha1_hash = hashlib.sha1()
+                    sha1_hash.update(article[2].encode('utf-8'))
+                    article_id = sha1_hash.hexdigest()
+
+                    article = {"article_id": article_id.encode('utf-8'), \
+                                "type":1, \
+                                "article_date": utils.string_to_datetime(article[0]), \
+                                "article_link": article[2].encode('utf-8'), \
+                                "article_title": article[1].encode('utf-8'), \
+                                "article_content": article[3].encode('utf-8'), \
+                                "article_readed": article[4]=="1", \
+                                "article_like": article[6]=="1" \
+                                }
+
+                    articles.append(article)
+
+                mongo.add_articles(articles, feed_id)
+
+        c.close()
+
+if __name__ == "__main__":
+    sqlite2mongo()
\ No newline at end of file
diff --git a/source/utils.py b/source/utils.py
new file mode 100755
index 00000000..c23b8794
--- /dev/null
+++ b/source/utils.py
@@ -0,0 +1,351 @@
+#! /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: 1.2 $"
+__date__ = "$Date: 2010/12/07 $"
+__revision__ = "$Date: 2011/04/15 $"
+__copyright__ = "Copyright (c) Cedric Bonhomme"
+__license__ = "GPLv3"
+
+#
+# This file provides functions used for:
+# - the database management;
+# - generation of tags cloud;
+# - HTML processing;
+# - mail notifications.
+#
+
+import re
+import hashlib
+import sqlite3
+import operator
+import urlparse
+import calendar
+import unicodedata
+import htmlentitydefs
+
+import smtplib
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+
+import urllib2
+import BaseHTTPServer
+from BeautifulSoup import BeautifulSoup
+
+from datetime import datetime
+from string import punctuation
+from collections import Counter
+from collections import OrderedDict
+
+from StringIO import StringIO
+
+import threading
+LOCKER = threading.Lock()
+
+import os
+import ConfigParser
+# load the configuration
+config = ConfigParser.RawConfigParser()
+try:
+    config.read("./cfg/pyAggr3g470r.cfg")
+except:
+    config.read("./cfg/pyAggr3g470r.cfg-sample")
+path = os.path.abspath(".")
+
+MONGODB_ADDRESS = config.get('MongoDB', 'address')
+MONGODB_PORT = int(config.get('MongoDB', 'port'))
+MONGODB_USER = config.get('MongoDB', 'user')
+MONGODB_PASSWORD = config.get('MongoDB', 'password')
+
+MAX_NB_ARTICLES = int(config.get('global', 'max_nb_articles'))
+
+mail_from = config.get('mail','mail_from')
+mail_to = config.get('mail','mail_to')
+smtp_server = config.get('mail','smtp')
+username =  config.get('mail','username')
+password =  config.get('mail','password')
+
+DIASPORA_POD = config.get('misc', 'diaspora_pod')
+
+# regular expression to chech URL
+url_finders = [ \
+    re.compile("([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}|(((news|telnet|nttp|file|http|ftp|https)://)|(www|ftp)[-A-Za-z0-9]*\\.)[-A-Za-z0-9\\.]+)(:[0-9]*)?/[-A-Za-z0-9_\\$\\.\\+\\!\\*\\(\\),;:@&=\\?/~\\#\\%]*[^]'\\.}>\\),\\\"]"), \
+    re.compile("([0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}|(((news|telnet|nttp|file|http|ftp|https)://)|(www|ftp)[-A-Za-z0-9]*\\.)[-A-Za-z0-9\\.]+)(:[0-9]*)?"), \
+    re.compile("(~/|/|\\./)([-A-Za-z0-9_\\$\\.\\+\\!\\*\\(\\),;:@&=\\?/~\\#\\%]|\\\\)+"), \
+    re.compile("'\\<((mailto:)|)[-A-Za-z0-9\\.]+@[-A-Za-z0-9\\.]+"), \
+]
+
+def detect_url_errors(list_of_urls):
+    """
+    Detect URL errors.
+    Return a list of error(s).
+    """
+    errors = []
+    for url in list_of_urls:
+        req = urllib2.Request(url)
+        try:
+            urllib2.urlopen(req)
+        except urllib2.HTTPError, e:
+            # server couldn't fulfill the request
+           errors.append((url, e.code, \
+                BaseHTTPServer.BaseHTTPRequestHandler.responses[e.code][1]))
+        except urllib2.URLError, e:
+            # failed to reach the server
+            errors.append((url, e.reason.errno ,e.reason.strerror))
+    return errors
+
+def clear_string(data):
+    """
+    Clear a string by removing HTML tags, HTML special caracters
+    and consecutive white spaces (more that one).
+    """
+    p = re.compile(r'<[^<]*?/?>') # HTML tags
+    q = re.compile(r'\s') # consecutive white spaces
+    return p.sub('', q.sub(' ', data))
+
+def unescape(text):
+    """
+    Removes HTML or XML character references and entities from a text string.
+    """
+    def fixup(m):
+        text = m.group(0)
+        if text[:2] == "&#":
+            # character reference
+            try:
+                if text[:3] == "&#x":
+                    return unichr(int(text[3:-1], 16))
+                else:
+                    return unichr(int(text[2:-1]))
+            except ValueError:
+                pass
+        else:
+            # named entity
+            try:
+                text = unichr(htmlentitydefs.name2codepoint[text[1:-1]])
+            except KeyError:
+                pass
+        return text # leave as is
+    return re.sub("&#?\w+;", fixup, text)
+
+def not_combining(char):
+    return unicodedata.category(char) != 'Mn'
+
+def strip_accents(text, encoding):
+    """
+    Strip accents.
+
+    >>> print strip_accents("déjà", "utf-8")
+    deja
+    """
+    unicode_text= unicodedata.normalize('NFD', text.decode(encoding))
+    return filter(not_combining, unicode_text).encode(encoding)
+
+def normalize_filename(name):
+    """
+    Normalize a file name.
+    """
+    file_name = re.sub("[,'!?|&]", "", name)
+    file_name = re.sub("[\s.]", "_", file_name)
+    file_name = file_name.strip('_')
+    file_name = file_name.strip('.')
+    file_name = strip_accents(file_name, "utf-8")
+    return os.path.normpath(file_name)
+
+def top_words(articles, n=10, size=5):
+    """
+    Return the n most frequent words in a list.
+    """
+    words = Counter()
+    wordre = re.compile(r'\b\w{%s,}\b' % size, re.I)
+    for article in articles:
+        for word in wordre.findall(clear_string(article["article_content"])):
+            words[word.lower()] += 1
+    return words.most_common(n)
+
+def tag_cloud(tags, query="word_count"):
+    """
+    Generates a tags cloud.
+    """
+    tags.sort(key=operator.itemgetter(0))
+    if query == "word_count":
+        # tags cloud from the management page
+        return ' '.join([('<font size=%d><a href="/search/?query=%s" title="Count: %s">%s</a></font>\n' % \
+                    (min(1 + count * 7 / max([tag[1] for tag in tags]), 7), word, count, word)) \
+                        for (word, count) in tags])
+    if query == "year":
+        # tags cloud for the history
+        return ' '.join([('<font size=%d><a href="/history/?query=%s:%s" title="Count: %s">%s</a></font>\n' % \
+                        (min(1 + count * 7 / max([tag[1] for tag in tags]), 7), query, word, count, word)) \
+                            for (word, count) in tags])
+    return ' '.join([('<font size=%d><a href="/history/?query=%s:%s" title="Count: %s">%s</a></font>\n' % \
+                        (min(1 + count * 7 / max([tag[1] for tag in tags]), 7), query, word, count, calendar.month_name[int(word)])) \
+                            for (word, count) in tags])
+
+def send_mail(mfrom, mto, feed_title, article_title, description):
+    """
+    Send the article via mail.
+    """
+    # Create the body of the message (a plain-text and an HTML version).
+    html = """<html>\n<head>\n<title>%s</title>\n</head>\n<body>\n%s\n</body>\n</html>""" % \
+                (feed_title + ": " + article_title, description)
+    text = clear_string(description)
+
+    # Create message container - the correct MIME type is multipart/alternative.
+    msg = MIMEMultipart('alternative')
+    msg['Subject'] = '[pyAggr3g470r] ' + feed_title + ": " + article_title
+    msg['From'] = mfrom
+    msg['To'] = mto
+
+    # Record the MIME types of both parts - text/plain and text/html.
+    part1 = MIMEText(text, 'plain')
+    part2 = MIMEText(html, 'html')
+
+    # Attach parts into message container.
+    # According to RFC 2046, the last part of a multipart message, in this case
+    # the HTML message, is best and preferred.
+    msg.attach(part1)
+    msg.attach(part2)
+
+    # Send the message via local SMTP server.
+    s = smtplib.SMTP(smtp_server)
+    s.login(username, password)
+    # sendmail function takes 3 arguments: sender's address, recipient's address
+    # and message to send - here it is sent as one string.
+    s.sendmail(mfrom, mto, msg.as_string())
+    s.quit()
+
+def string_to_datetime(stringtime):
+    """
+    Convert a string to datetime.
+    """
+    date, time = stringtime.split(' ')
+    year, month, day = date.split('-')
+    hour, minute, second = time.split(':')
+    return datetime(year=int(year), month=int(month), day=int(day), \
+        hour=int(hour), minute=int(minute), second=int(second))
+
+def compare(stringtime1, stringtime2):
+    """
+    Compare two dates in the format 'yyyy-mm-dd hh:mm:ss'.
+    """
+    datetime1 = string_to_datetime(stringtime1)
+    datetime2 = string_to_datetime(stringtime2)
+    if datetime1 < datetime2:
+        return -1
+    elif datetime1 > datetime2:
+        return 1
+    return 0
+
+def add_feed(feed_url):
+    """
+    Add the URL feed_url in the file feed.lst.
+    """
+    if os.path.exists("./var/feed.lst"):
+        for line in open("./var/feed.lst", "r"):
+            if feed_url in line:
+                # if the feed is already in the file
+                return False
+    with open("./var/feed.lst", "a") as f:
+        f.write(feed_url + "\n")
+    return True
+
+def change_feed_url(old_feed_url, new_feed_url):
+    """
+    Change the URL of a feed given in parameter.
+    """
+    # Replace the URL in the text file
+    with open("./var/feed.lst", "r") as f:
+        lines = f.readlines()
+    try:
+        lines[lines.index(old_feed_url+"\n")] = new_feed_url + '\n'
+    except:
+        return
+    with open("./var/feed.lst", "w") as f:
+        f.write("\n".join(lines))
+
+    # Replace the URL in the data base.
+    try:
+        conn = sqlite3.connect(sqlite_base, isolation_level = None)
+        c = conn.cursor()
+        c.execute("UPDATE articles SET feed_link='" + new_feed_url + "' WHERE feed_link='" + old_feed_url +"'")
+        c.execute("UPDATE feeds SET feed_link='" + new_feed_url + "' WHERE feed_link='" + old_feed_url +"'")
+        conn.commit()
+        c.close()
+    except Exception, e:
+        print e
+
+def change_feed_name(feed_url, new_feed_name):
+    """
+    Change the name of a feed given in parameter.
+    """
+    try:
+        conn = sqlite3.connect(sqlite_base, isolation_level = None)
+        c = conn.cursor()
+        c.execute('UPDATE feeds SET feed_title="' + new_feed_name + '" WHERE feed_link="' + feed_url +'"')
+        conn.commit()
+        c.close()
+    except Exception, e:
+        print e
+
+def change_feed_logo(feed_url, new_feed_logo):
+    """
+    Change the logo of a feed given in parameter.
+    """
+    try:
+        conn = sqlite3.connect(sqlite_base, isolation_level = None)
+        c = conn.cursor()
+        c.execute('UPDATE feeds SET feed_image_link="' + new_feed_logo + '" WHERE feed_link="' + feed_url +'"')
+        conn.commit()
+        c.close()
+    except Exception, e:
+        print e
+
+def remove_feed(feed_url):
+    """
+    Remove a feed from the file feed.lst and from the SQLite base.
+    """
+    feeds = []
+    # Remove the URL from the file feed.lst
+    if os.path.exists("./var/feed.lst"):
+        for line in open("./var/feed.lst", "r"):
+            if feed_url not in line:
+                feeds.append(line.replace("\n", ""))
+        with open("./var/feed.lst", "w") as f:
+            f.write("\n".join(feeds) + "\n")
+
+def search_feed(url):
+    """
+    Search a feed in a HTML page.
+    """
+    soup = None
+    try:
+        page = urllib2.urlopen(url)
+        soup = BeautifulSoup(page)
+    except:
+        return None
+    feed_links = soup('link', type='application/atom+xml')
+    feed_links.extend(soup('link', type='application/rss+xml'))
+    for feed_link in feed_links:
+        if url not in feed_link['href']:
+            return urlparse.urljoin(url, feed_link['href'])
+        return feed_link['href']
+    return None
\ No newline at end of file
diff --git a/source/var/feed.lst b/source/var/feed.lst
new file mode 100755
index 00000000..51cd1936
--- /dev/null
+++ b/source/var/feed.lst
@@ -0,0 +1,37 @@
+http://feeds2.feedburner.com/diveintomark/all
+http://www.foo.be/cgi-bin/wiki.pl?action=journal&tile=AdulauMessyDesk
+http://blog.cedricbonhomme.org/feed/
+http://bnjgat.fr/weblog/?feed/rss2
+http://standblog.org/blog/feed/atom
+http://www.haypocalc.com/blog/rss.php
+http://linuxfr.org/news.atom
+http://rss.slashdot.org/Slashdot/slashdot
+http://theinvisiblethings.blogspot.com/feeds/posts/default
+http://torvalds-family.blogspot.com/feeds/posts/default
+http://www.python.org/channews.rdf
+http://www.kde.org/dotkdeorg.rdf
+http://feeds.feedburner.com/internetactu/bcmJ
+http://www.april.org/fr/rss.xml
+http://www.framablog.org/index.php/feed/atom
+http://tarekziade.wordpress.com/feed/
+http://formats-ouverts.org/rss.php
+http://lwn.net/headlines/newrss
+http://kernelnewbies.org/RecentChanges?action=rss_rc&ddiffs=1&unique=1
+http://www.kroah.com/log/index.rss
+http://www.lessentiel.lu/rss/news.tmpl
+http://www.jeffersonswheel.org/?feed=rss2
+http://www.laquadrature.net/en/rss.xml
+http://static.fsf.org/fsforg/rss/blogs.xml
+http://esr.ibiblio.org/?feed=rss2
+http://www.maitre-eolas.fr/feed/atom
+http://linuxfr.org/journaux.atom
+http://www.le-tigre.net/spip.php?page=backend
+http://www.schneier.com/blog/index.rdf
+http://www.handcrafted-games.com/index.php?feed/atom
+http://python-history.blogspot.com/feeds/posts/default
+http://www.haypocalc.com/wordpress/feed
+http://www.crypto.com/blog/rss10.xml
+http://spaf.wordpress.com/feed/
+http://neopythonic.blogspot.com/feeds/posts/default
+http://www.quuxlabs.com/feed/
+http://etbe.coker.com.au/feed/