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#! /usr/bin/env python
#-*- coding: utf-8 -*-
# pyAggr3g470r - A Web based news aggregator.
# Copyright (C) 2010-2013 Cédric Bonhomme - http://cedricbonhomme.org/
#
# For more information : http://bitbucket.org/cedricbonhomme/pyaggr3g470r/
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.3 $"
__date__ = "$Date: 2011/10/24 $"
__revision__ = "$Date: 2013/01/18 $"
__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 conf
import utils
def HTML_HEADER(title="pyAggr3g470r"):
return """<!DOCTYPE html>
<html lang="en-US">
<head>
<title>%s</title>
<meta charset="utf-8"/>
<style media="screen">
body{font:normal medium 'Gill Sans','Gill Sans MT',Verdana,sans-serif;margin:1.20em auto;width:80%s;line-height:1.75}
blockquote{font-size:small;line-height:2.153846;margin:2.153846em 0;padding:0;font-style:oblique;border-left:1px dotted;margin-left:2.153846em;padding-left:2.153846em}
blockquote p{margin:2.153846em 0}
p+br{display:none}
h1{font-size:large}
h2,h3{font-size:medium}
hr{border-style:dotted;height:1px;border-width: 1px 0 0 0;margin:1.45em 0 1.4em;padding:0;}
a{text-decoration:none;color:#00008B}
#footer{clear:both;text-align:center;font-size:small}
img{border:0}
.horizontal,.simple li{margin:0;padding:0;list-style:none;display:inline}
.simple li:before{content:"+ "}
.simple > li:first-child:before{content:""}
.author{text-decoration:none;display:block;float:right;margin-left:2em;font-size:small}
.content{margin:1.00em 1.00em}
</style>
</head>
<body>""" % (title, "%")
HTML_FOOTER = """<hr />
<p>This archive has been generated with
<a href="https://bitbucket.org/cedricbonhomme/pyaggr3g470r/">pyAggr3g470r</a>.
A software 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>
</body>
</html>
"""
def export_html(mongo_db):
"""
Export the articles given in parameter in a simple Webzine.
"""
nb_articles = format(mongo_db.nb_articles(), ",d")
feeds = mongo_db.get_all_feeds()
index = HTML_HEADER("News archive")
index += "<h1>List of feeds</h1>\n"
index += """<p>%s articles.</p>\n<ul>\n""" % (nb_articles,)
for feed in feeds:
# creates a folder for each stream
feed_folder = conf.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></li>\n""" % \
(feed["feed_id"], feed["feed_title"])
posts = HTML_HEADER(feed["feed_title"])
posts += """<h1>Articles of the feed <a href="%s">%s</a></h1>\n""" % (feed["site_link"], feed["feed_title"])
posts += """<p>%s articles.</p>\n""" % (format(mongo_db.nb_articles(feed["feed_id"]), ",d"),)
for article in mongo_db.get_articles(feed_id=feed["feed_id"]):
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"].ctime() + " - " + \
"""<a href="./%s.html">%s</a>""" % \
(article["article_id"], article["article_title"][:150]) + "<br />\n"
a_post = HTML_HEADER(article["article_title"])
a_post += '<div style="overflow:hidden; text-align: justify; margin:0 auto">\n'
a_post += """<h1><a href="%s">%s</a></h1>\n<br />""" % \
(article["article_link"], article["article_title"])
a_post += article["article_content"]
a_post += "</div>\n<hr />\n"
a_post += """<br />\n<a href="%s">Complete story</a>\n<br />\n""" % (article["article_link"],)
a_post += HTML_FOOTER
with open(post_file_name, "w") as f:
f.write(a_post)
posts += HTML_FOOTER
with open(feed_index, "w") as f:
f.write(posts)
index += "\n</ul>\n<br />\n"
index += HTML_FOOTER
with open(conf.path + "/var/export/webzine/" + "index.html", "w") as f:
f.write(index)
def export_txt(mongo_db):
"""
Export the articles given in parameter in text files.
"""
feeds = mongo_db.get_all_feeds()
for feed in feeds:
# creates folder for each stream
folder = conf.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 mongo_db.get_articles(feed_id=feed["feed_id"]):
name = article["article_date"].ctime().strip().replace(' ', '_')
name = os.path.normpath(folder + "/" + name + ".txt")
content = "Title: " + article["article_title"] + "\n\n\n"
content += utils.clear_string(article["article_content"])
with open(name, "w") as f:
f.write(content)
def export_epub(mongo_db):
"""
Export the articles given in parameter in ePub files.
"""
from epub import ez_epub
feeds = mongo_db.get_all_feeds()
for feed in feeds:
# creates folder for each stream
folder = conf.path + "/var/export/epub/" + \
utils.normalize_filename(feed["feed_title"].strip().replace(':', '').lower().encode('utf-8'))
try:
os.makedirs(folder)
except OSError:
# directories already exists (not a problem)
pass
for article in mongo_db.get_articles(feed_id=feed["feed_id"]):
name = article["article_date"].ctime().strip().replace(' ', '_')
name = os.path.normpath(folder + "/" + name + ".epub")
section = ez_epub.Section()
section.title = article["article_title"]
section.paragraphs = [utils.clear_string(article["article_content"])]
ez_epub.makeBook(article["article_title"], [feed["feed_title"]], [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 io as StringIO
for feed in list(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 list(feed.articles.values()):
name = article.article_date.strip().replace(' ', '_')
name = os.path.normpath(folder + "/" + name + ".pdf")
content = HTML_HEADER(article.article_title)
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 += HTML_FOOTER
try:
pdf = pisa.CreatePDF(StringIO.StringIO(content), file(name, "wb"))
except:
pass
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