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authorCédric Bonhomme <cedric@cedricbonhomme.org>2015-12-17 13:05:26 +0100
committerCédric Bonhomme <cedric@cedricbonhomme.org>2015-12-17 13:05:26 +0100
commit0312e25586d381cc53935c2fd4912378cd292d6e (patch)
treeb04ad1a26edd4c67701d0d704c8ce8c554b2ae42 /src/web/export.py
parentUpdated link to Heroku deploy button on the About page. (diff)
parenthandling failing feed link (diff)
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Merge pull request #24 from jaesivsm/master
moving the root of source code from / to /src/
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+#! /usr/bin/env python
+#-*- coding: utf-8 -*-
+
+# jarr - A Web based news aggregator.
+# Copyright (C) 2010-2015 Cédric Bonhomme - https://www.JARR-aggregator.org
+#
+# For more information : https://github.com/JARR-aggregator/JARR/
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+__author__ = "Cedric Bonhomme"
+__version__ = "$Revision: 0.6 $"
+__date__ = "$Date: 2011/10/24 $"
+__revision__ = "$Date: 2014/04/12 $"
+__copyright__ = "Copyright (c) Cedric Bonhomme"
+__license__ = "AGPLv3"
+
+#
+# This file contains the export functions of jarr. Indeed
+# it is possible to export the database of articles in different formats:
+# - simple HTML webzine;
+# - text file.
+#
+
+import os
+import shutil
+import time
+import tarfile
+from datetime import datetime
+
+from flask import jsonify
+
+import conf
+from web import models
+
+
+def HTML_HEADER(title="jarr", css="./style.css"):
+ return """<!DOCTYPE html>
+<html lang="en-US">
+<head>
+<title>%s</title>
+<meta charset="utf-8"/>
+<link rel="stylesheet" href="%s" />
+</head>
+<body>""" % (title, css)
+
+HTML_FOOTER = """<hr />
+<p>This archive has been generated with
+<a href="https://github.com/JARR-aggregator/JARR">jarr</a>.
+A software under AGPLv3 license.
+You are welcome to copy, modify or redistribute the source code according to the
+<a href="https://www.gnu.org/licenses/agpl-3.0.txt">AGPLv3</a> license.</p>
+</body>
+</html>
+"""
+
+CSS = """body {
+ font:normal medium 'Gill Sans','Gill Sans MT',Verdana,sans-serif;
+ margin:1.20em auto;
+ width:80%;
+ 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;
+}"""
+
+
+def export_html(user):
+ """
+ Export all articles of 'user' in Web pages.
+ """
+ webzine_root = conf.WEBZINE_ROOT + "webzine/"
+ nb_articles = format(len(models.Article.query.filter(models.Article.user_id == user.id).all()), ",d")
+ 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 user.feeds.order_by(models.Feed.title):
+ # creates a folder for each stream
+ feed_folder = webzine_root + str(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.id, feed.title)
+
+ posts = HTML_HEADER(feed.title, "../style.css")
+ posts += """<h1>Articles of the feed <a href="%s">%s</a></h1>\n""" % (feed.site_link, feed.title)
+ posts += """<p>%s articles.</p>\n""" % (format(len(feed.articles.all()), ",d"),)
+
+ for article in feed.articles:
+
+ post_file_name = os.path.normpath(feed_folder + "/" + str(article.id) + ".html")
+ feed_index = os.path.normpath(feed_folder + "/index.html")
+
+ posts += article.date.ctime() + " - " + """<a href="./%s.html">%s</a>""" % \
+ (article.id, article.title[:150]) + "<br />\n"
+
+ a_post = HTML_HEADER(article.title, "../style.css")
+ a_post += '<div style="width:60%; overflow:hidden; text-align:justify; margin:0 auto">\n'
+ a_post += """<h1><a href="%s">%s</a></h1>\n<br />""" % \
+ (article.link, article.title)
+ a_post += article.content
+ a_post += "</div>\n<hr />\n"
+ a_post += """<br />\n<a href="%s">Complete story</a>\n<br />\n""" % (article.link,)
+ a_post += HTML_FOOTER
+
+ with open(post_file_name, "w") as f:
+ f.write(a_post)
+
+ posts += HTML_FOOTER
+ if len(feed.articles.all()) != 0:
+ with open(feed_index, "w") as f:
+ f.write(posts)
+
+ index += "</ul>\n"
+ index += "<p>" + time.strftime("Generated on %d %b %Y at %H:%M.") + "</p>\n"
+ index += HTML_FOOTER
+ with open(webzine_root + "index.html", "w") as f:
+ f.write(index)
+ with open(webzine_root + "style.css", "w") as f:
+ f.write(CSS)
+
+ archive_file_name = datetime.now().strftime('%Y-%m-%d') + '.tar.gz'
+ with tarfile.open(conf.WEBZINE_ROOT + archive_file_name, "w:gz") as tar:
+ tar.add(webzine_root, arcname=os.path.basename(webzine_root))
+
+ shutil.rmtree(webzine_root)
+
+ with open(conf.WEBZINE_ROOT + archive_file_name, 'rb') as export_file:
+ return export_file.read(), archive_file_name
+
+def export_json(user):
+ """
+ Export all articles of 'user' in JSON.
+ """
+ result = []
+ for feed in user.feeds:
+ result.append({
+ "title": feed.title,
+ "description": feed.description,
+ "link": feed.link,
+ "site_link": feed.site_link,
+ "enabled": feed.enabled,
+ "created_date": feed.created_date.strftime('%s'),
+ "articles": [ {
+ "title": article.title,
+ "link": article.link,
+ "content": article.content,
+ "readed": article.readed,
+ "like": article.like,
+ "date": article.date.strftime('%s'),
+ "retrieved_date": article.retrieved_date.strftime('%s')
+ }
+ for article in feed.articles
+ ]
+ })
+
+ return jsonify(result=result)
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