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Diffstat (limited to 'web/views/feed.py')
| -rw-r--r-- | web/views/feed.py | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/web/views/feed.py b/web/views/feed.py new file mode 100644 index 00000000..2a9b2da8 --- /dev/null +++ b/web/views/feed.py @@ -0,0 +1,207 @@ +#! /usr/bin/env python +# -*- coding: utf-8 - +import base64 +import requests.exceptions +from hashlib import md5 +from datetime import datetime, timedelta +from sqlalchemy import desc +from werkzeug.exceptions import BadRequest + +from flask import Blueprint, g, render_template, flash, \ + redirect, request, url_for, Response +from flask.ext.babel import gettext +from flask.ext.login import login_required + +import conf +from web import utils +from web.lib.view_utils import etag_match +from web.lib.feed_utils import construct_feed_from +from web.forms import AddFeedForm +from web.controllers import FeedController, ArticleController + +feeds_bp = Blueprint('feeds', __name__, url_prefix='/feeds') +feed_bp = Blueprint('feed', __name__, url_prefix='/feed') + + +@feeds_bp.route('/', methods=['GET']) +@login_required +@etag_match +def feeds(): + "Lists the subscribed feeds in a table." + art_contr = ArticleController(g.user.id) + return render_template('feeds.html', + feeds=FeedController(g.user.id).read(), + unread_article_count=art_contr.count_by_feed(readed=False), + article_count=art_contr.count_by_feed()) + + +@feed_bp.route('/<int:feed_id>', methods=['GET']) +@login_required +@etag_match +def feed(feed_id=None): + "Presents detailed information about a feed." + feed = FeedController(g.user.id).get(id=feed_id) + word_size = 6 + articles = ArticleController(g.user.id) \ + .read(feed_id=feed_id) \ + .order_by(desc("Article.date")).all() + top_words = utils.top_words(articles, n=50, size=int(word_size)) + tag_cloud = utils.tag_cloud(top_words) + + today = datetime.now() + try: + last_article = articles[0].date + first_article = articles[-1].date + delta = last_article - first_article + average = round(float(len(articles)) / abs(delta.days), 2) + except: + last_article = datetime.fromtimestamp(0) + first_article = datetime.fromtimestamp(0) + delta = last_article - first_article + average = 0 + elapsed = today - last_article + + return render_template('feed.html', + head_titles=[utils.clear_string(feed.title)], + feed=feed, tag_cloud=tag_cloud, + first_post_date=first_article, + end_post_date=last_article, + average=average, delta=delta, elapsed=elapsed) + + +@feed_bp.route('/delete/<feed_id>', methods=['GET']) +@login_required +def delete(feed_id=None): + feed_contr = FeedController(g.user.id) + feed = feed_contr.get(id=feed_id) + feed_contr.delete(feed_id) + flash(gettext("Feed %(feed_title)s successfully deleted.", + feed_title=feed.title), 'success') + return redirect(url_for('home')) + + +@feed_bp.route('/reset_errors/<int:feed_id>', methods=['GET', 'POST']) +@login_required +def reset_errors(feed_id): + feed_contr = FeedController(g.user.id) + feed = feed_contr.get(id=feed_id) + feed_contr.update({'id': feed_id}, {'error_count': 0, 'last_error': ''}) + flash(gettext('Feed %(feed_title)r successfully updated.', + feed_title=feed.title), 'success') + return redirect(request.referrer or url_for('home')) + + +@feed_bp.route('/bookmarklet', methods=['GET']) +@login_required +def bookmarklet(): + feed_contr = FeedController(g.user.id) + url = request.args.get('url', None) + if not url: + flash(gettext("Couldn't add feed: url missing."), "error") + raise BadRequest("url is missing") + + feed_exists = list(feed_contr.read(__or__={'link': url, 'site_link': url})) + if feed_exists: + flash(gettext("Couldn't add feed: feed already exists."), + "warning") + return redirect(url_for('feed.form', feed_id=feed_exists[0].id)) + + try: + feed = construct_feed_from(url) + except requests.exceptions.ConnectionError: + flash(gettext("Impossible to connect to the address: {}.".format(url)), + "danger") + return redirect(url_for('home')) + if not feed.get('link'): + feed['enabled'] = False + flash(gettext("Couldn't find a feed url, you'll need to find a Atom or" + " RSS link manually and reactivate this feed"), + 'warning') + feed = feed_contr.create(**feed) + flash(gettext('Feed was successfully created.'), 'success') + if feed.enabled and conf.CRAWLING_METHOD == "classic": + utils.fetch(g.user.id, feed.id) + flash(gettext("Downloading articles for the new feed..."), 'info') + return redirect(url_for('feed.form', feed_id=feed.id)) + + +@feed_bp.route('/update/<action>/<int:feed_id>', methods=['GET', 'POST']) +@feeds_bp.route('/update/<action>', methods=['GET', 'POST']) +@login_required +def update(action, feed_id=None): + readed = action == 'read' + filters = {'readed__ne': readed} + + nb_days = request.args.get('nb_days', 0, type=int) + if nb_days != 0: + filters['date__lt'] = datetime.now() - timedelta(days=nb_days) + + if feed_id: + filters['feed_id'] = feed_id + ArticleController(g.user.id).update(filters, {'readed': readed}) + flash(gettext('Feed successfully updated.'), 'success') + return redirect(request.referrer or url_for('home')) + + +@feed_bp.route('/create', methods=['GET']) +@feed_bp.route('/edit/<int:feed_id>', methods=['GET']) +@login_required +@etag_match +def form(feed_id=None): + action = gettext("Add a feed") + head_titles = [action] + if feed_id is None: + return render_template('edit_feed.html', action=action, + head_titles=head_titles, form=AddFeedForm()) + feed = FeedController(g.user.id).get(id=feed_id) + action = gettext('Edit feed') + head_titles = [action] + if feed.title: + head_titles.append(feed.title) + return render_template('edit_feed.html', action=action, + head_titles=head_titles, + form=AddFeedForm(obj=feed), feed=feed) + + +@feed_bp.route('/create', methods=['POST']) +@feed_bp.route('/edit/<int:feed_id>', methods=['POST']) +@login_required +def process_form(feed_id=None): + form = AddFeedForm() + feed_contr = FeedController(g.user.id) + + if not form.validate(): + return render_template('edit_feed.html', form=form) + existing_feeds = list(feed_contr.read(link=form.link.data)) + if existing_feeds and feed_id is None: + flash(gettext("Couldn't add feed: feed already exists."), "warning") + return redirect(url_for('feed.form', feed_id=existing_feeds[0].id)) + # Edit an existing feed + feed_attr = {'title': form.title.data, 'enabled': form.enabled.data, + 'link': form.link.data, 'site_link': form.site_link.data, + 'filters': []} + + for filter_attr in ('type', 'pattern', 'action on', 'action'): + for i, value in enumerate( + request.form.getlist(filter_attr.replace(' ', '_'))): + if i >= len(feed_attr['filters']): + feed_attr['filters'].append({}) + feed_attr['filters'][i][filter_attr] = value + + if feed_id is not None: + feed_contr.update({'id': feed_id}, feed_attr) + flash(gettext('Feed %(feed_title)r successfully updated.', + feed_title=feed_attr['title']), 'success') + return redirect(url_for('feed.form', feed_id=feed_id)) + + # Create a new feed + new_feed = FeedController(g.user.id).create(**feed_attr) + + flash(gettext('Feed %(feed_title)r successfully created.', + feed_title=new_feed.title), 'success') + + if conf.CRAWLING_METHOD == "classic": + utils.fetch(g.user.id, new_feed.id) + flash(gettext("Downloading articles for the new feed..."), 'info') + + return redirect(url_for('feed.form', feed_id=new_feed.id)) |