import logging import requests.exceptions from datetime import datetime, timedelta from sqlalchemy import desc from werkzeug.exceptions import BadRequest from flask import Blueprint, render_template, flash, \ redirect, request, url_for from flask_babel import gettext from flask_login import login_required, current_user from flask_paginate import Pagination, get_page_args import conf from lib import misc_utils, utils from lib.feed_utils import construct_feed_from from web.lib.view_utils import etag_match from web.forms import AddFeedForm from web.controllers import (CategoryController, FeedController, ArticleController) logger = logging.getLogger(__name__) 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(current_user.id) return render_template('feeds.html', feeds=FeedController(current_user.id).read().order_by('title'), unread_article_count=art_contr.count_by_feed(readed=False), article_count=art_contr.count_by_feed()) def feed_view(feed_id=None, user_id=None): feed = FeedController(user_id).get(id=feed_id) word_size = 6 category = None if feed.category_id: category = CategoryController(user_id).get(id=feed.category_id) filters = {} filters['feed_id'] = feed_id articles = ArticleController(user_id).read_light(**filters) # Server-side pagination page, per_page, offset = get_page_args(per_page_parameter='per_page') pagination = Pagination(page=page, total=articles.count(), css_framework='bootstrap3', search=False, record_name='articles', per_page=per_page) today = datetime.now() try: last_article = articles[0].date first_article = articles[-1].date delta = last_article - first_article average = round(float(articles.count()) / abs(delta.days), 2) except Exception as e: print(e) 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, category=category, articles=articles.offset(offset).limit(per_page), pagination=pagination, first_post_date=first_article, end_post_date=last_article, average=average, delta=delta, elapsed=elapsed) @feed_bp.route('/', methods=['GET']) @login_required @etag_match def feed(feed_id=None): "Presents detailed information about a feed." return feed_view(feed_id, current_user.id) @feed_bp.route('/public/', methods=['GET']) @etag_match def feed_pub(feed_id=None): """ Presents details of a pubic feed if the profile of the owner is also public. """ feed = FeedController(None).get(id=feed_id) if feed.private or not feed.user.is_public_profile: return render_template('errors/404.html'), 404 return feed_view(feed_id, None) @feed_bp.route('/delete/', methods=['GET']) @login_required def delete(feed_id=None): feed_contr = FeedController(current_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/', methods=['GET', 'POST']) @login_required def reset_errors(feed_id): feed_contr = FeedController(current_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', 'POST']) @login_required def bookmarklet(): feed_contr = FeedController(current_user.id) url = (request.args if request.method == 'GET' else request.form)\ .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')) except Exception: logger.exception('something bad happened when fetching %r', url) 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 == "default": misc_utils.fetch(current_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//', methods=['GET', 'POST']) @feeds_bp.route('/update/', 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(current_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/', methods=['GET']) @login_required @etag_match def form(feed_id=None): action = gettext("Add a feed") categories = CategoryController(current_user.id).read() head_titles = [action] if feed_id is None: form = AddFeedForm() form.set_category_choices(categories) return render_template('edit_feed.html', action=action, head_titles=head_titles, form=form) feed = FeedController(current_user.id).get(id=feed_id) form = AddFeedForm(obj=feed) form.set_category_choices(categories) 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, categories=categories, form=form, feed=feed) @feed_bp.route('/create', methods=['POST']) @feed_bp.route('/edit/', methods=['POST']) @login_required def process_form(feed_id=None): form = AddFeedForm() feed_contr = FeedController(current_user.id) form.set_category_choices(CategoryController(current_user.id).read()) 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': [], 'category_id': form.category_id.data, 'private': form.private.data} if not feed_attr['category_id'] or feed_attr['category_id'] == '0': del feed_attr['category_id'] 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 = feed_contr.create(**feed_attr) flash(gettext('Feed %(feed_title)r successfully created.', feed_title=new_feed.title), 'success') if conf.CRAWLING_METHOD == "default": misc_utils.fetch(current_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)) @feeds_bp.route('/inactives', methods=['GET']) @login_required def inactives(): """ List of inactive feeds. """ nb_days = int(request.args.get('nb_days', 365)) inactives = FeedController(current_user.id).get_inactives(nb_days) return render_template('inactives.html', inactives=inactives, nb_days=nb_days) @feed_bp.route('/duplicates/', methods=['GET']) @login_required def duplicates(feed_id): """ Return duplicates article for a feed. """ feed, duplicates = FeedController(current_user.id).get_duplicates(feed_id) if len(duplicates) == 0: flash(gettext('No duplicates in the feed "{}".').format(feed.title), 'info') return redirect(url_for('home')) return render_template('duplicates.html', duplicates=duplicates, feed=feed)