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from datetime import datetime, timedelta
from flask import (Blueprint, g, render_template, redirect,
flash, url_for, make_response, request)
from flask.ext.babel import gettext
from flask.ext.login import login_required, current_user
from bootstrap import db
from web.export import export_json, export_html
from web.lib.utils import clear_string, redirect_url
from web.controllers import (ArticleController, UserController,
CategoryController)
from web.lib.view_utils import etag_match
articles_bp = Blueprint('articles', __name__, url_prefix='/articles')
article_bp = Blueprint('article', __name__, url_prefix='/article')
@article_bp.route('/redirect/<int:article_id>', methods=['GET'])
@login_required
def redirect_to_article(article_id):
contr = ArticleController(current_user.id)
article = contr.get(id=article_id)
if not article.readed:
contr.update({'id': article.id}, {'readed': True})
return redirect(article.link)
@article_bp.route('/<int:article_id>', methods=['GET'])
@login_required
@etag_match
def article(article_id=None):
"""
Presents the content of an article.
"""
article = ArticleController(current_user.id).get(id=article_id)
previous_article = article.previous_article()
if previous_article is None:
previous_article = article.source.articles[0]
next_article = article.next_article()
if next_article is None:
next_article = article.source.articles[-1]
return render_template('article.html',
head_titles=[clear_string(article.title)],
article=article,
previous_article=previous_article,
next_article=next_article)
@article_bp.route('/like/<int:article_id>', methods=['GET'])
@login_required
def like(article_id=None):
"""
Mark or unmark an article as favorites.
"""
art_contr = ArticleController(current_user.id)
article = art_contr.get(id=article_id)
art_contr = art_contr.update({'id': article_id},
{'like': not article.like})
return redirect(redirect_url())
@article_bp.route('/delete/<int:article_id>', methods=['GET'])
@login_required
def delete(article_id=None):
"""
Delete an article from the database.
"""
article = ArticleController(current_user.id).delete(article_id)
flash(gettext('Article %(article_title)s deleted',
article_title=article.title), 'success')
return redirect(url_for('home'))
@articles_bp.route('/history', methods=['GET'])
@articles_bp.route('/history/<int:year>', methods=['GET'])
@articles_bp.route('/history/<int:year>/<int:month>', methods=['GET'])
@login_required
def history(year=None, month=None):
cntr, artcles = ArticleController(current_user.id).get_history(year, month)
return render_template('history.html', articles_counter=cntr,
articles=artcles, year=year, month=month)
@article_bp.route('/mark_as/<string:new_value>', methods=['GET'])
@article_bp.route('/mark_as/<string:new_value>/article/<int:article_id>',
methods=['GET'])
@login_required
def mark_as(new_value='read', feed_id=None, article_id=None):
"""
Mark all unreaded articles as read.
"""
readed = new_value == 'read'
art_contr = ArticleController(current_user.id)
filters = {'readed': not readed}
if feed_id is not None:
filters['feed_id'] = feed_id
message = 'Feed marked as %s.'
elif article_id is not None:
filters['id'] = article_id
message = 'Article marked as %s.'
else:
message = 'All article marked as %s.'
art_contr.update(filters, {"readed": readed})
flash(gettext(message % new_value), 'info')
if readed:
return redirect(redirect_url())
return redirect('home')
@articles_bp.route('/expire_articles', methods=['GET'])
@login_required
def expire():
"""
Delete articles older than the given number of weeks.
"""
current_time = datetime.utcnow()
weeks_ago = current_time - timedelta(int(request.args.get('weeks', 10)))
art_contr = ArticleController(current_user.id)
query = art_contr.read(__or__={'date__lt': weeks_ago,
'retrieved_date__lt': weeks_ago})
count = query.count()
query.delete()
db.session.commit()
flash(gettext('%(count)d articles deleted', count=count), 'info')
return redirect(redirect_url())
@articles_bp.route('/export', methods=['GET'])
@login_required
def export():
"""
Export all articles to HTML or JSON.
"""
user = UserController(current_user.id).get(id=current_user.id)
if request.args.get('format') == "HTML":
# Export to HTML
try:
archive_file, archive_file_name = export_html(user)
except Exception as e:
print(e)
flash(gettext("Error when exporting articles."), 'danger')
return redirect(redirect_url())
response = make_response(archive_file)
response.headers['Content-Type'] = 'application/x-compressed'
response.headers['Content-Disposition'] = 'attachment; filename=%s' \
% archive_file_name
elif request.args.get('format') == "JSON":
# Export to JSON
try:
json_result = export_json(user)
except Exception as e:
flash(gettext("Error when exporting articles."), 'danger')
return redirect(redirect_url())
response = make_response(json_result)
response.mimetype = 'application/json'
response.headers["Content-Disposition"] \
= 'attachment; filename=account.json'
elif request.args.get('format') == "OPML":
categories = {cat.id: cat.dump()
for cat in CategoryController(user.id).read()}
response = make_response(render_template('opml.xml', user=user,
categories=categories,
now=datetime.now()))
response.headers['Content-Type'] = 'application/xml'
response.headers['Content-Disposition'] = 'attachment; filename=feeds.opml'
else:
flash(gettext('Export format not supported.'), 'warning')
return redirect(redirect_url())
return response
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