import datetime import mongoengine as mongo import pickle import base64 from oauth2client.client import Error as OAuthError from xml.etree.ElementTree import Element, SubElement, Comment, tostring from lxml import etree from django.db import models from django.contrib.auth.models import User from mongoengine.queryset import OperationError import vendor.opml as opml from apps.rss_feeds.models import Feed, DuplicateFeed from apps.reader.models import UserSubscription, UserSubscriptionFolders from utils import json_functions as json, urlnorm from utils import log as logging from utils.feed_functions import timelimit from utils.feed_functions import add_object_to_folder class OAuthToken(models.Model): user = models.OneToOneField(User, null=True, blank=True, on_delete=models.CASCADE) session_id = models.CharField(max_length=50, null=True, blank=True) uuid = models.CharField(max_length=50, null=True, blank=True) remote_ip = models.CharField(max_length=50, null=True, blank=True) request_token = models.CharField(max_length=50) request_token_secret = models.CharField(max_length=50) access_token = models.CharField(max_length=50) access_token_secret = models.CharField(max_length=50) credential = models.TextField(null=True, blank=True) created_date = models.DateTimeField(default=datetime.datetime.now) class Importer: def clear_feeds(self): UserSubscription.objects.filter(user=self.user).delete() def clear_folders(self): UserSubscriptionFolders.objects.filter(user=self.user).delete() def get_folders(self): self.usf, _ = UserSubscriptionFolders.objects.get_or_create(user=self.user, defaults={'folders': '[]'}) return json.decode(self.usf.folders) class OPMLExporter(Importer): def __init__(self, user): self.user = user self.fetch_feeds() def process(self, verbose=False): now = str(datetime.datetime.now()) root = Element('opml') root.set('version', '1.1') root.append(Comment('Generated by NewsBlur - newsblur.com')) head = SubElement(root, 'head') title = SubElement(head, 'title') title.text = 'NewsBlur Feeds' dc = SubElement(head, 'dateCreated') dc.text = now dm = SubElement(head, 'dateModified') dm.text = now folders = self.get_folders() body = SubElement(root, 'body') self.process_outline(body, folders, verbose=verbose) return tostring(root, encoding='utf8', method='xml') def process_outline(self, body, folders, verbose=False): for obj in folders: if isinstance(obj, int) and obj in self.feeds: feed = self.feeds[obj] if verbose: print(" ---> Adding feed: %s - %s" % (feed['id'], feed['feed_title'][:30])) feed_attrs = self.make_feed_row(feed) body.append(Element('outline', feed_attrs)) elif isinstance(obj, dict): for folder_title, folder_objs in list(obj.items()): if verbose: print(" ---> Adding folder: %s" % folder_title) folder_element = Element('outline', {'text': folder_title, 'title': folder_title}) body.append(self.process_outline(folder_element, folder_objs, verbose=verbose)) return body def make_feed_row(self, feed): feed_attrs = { 'text': feed['feed_title'], 'title': feed['feed_title'], 'type': 'rss', 'version': 'RSS', 'htmlUrl': feed['feed_link'] or "", 'xmlUrl': feed['feed_address'] or "", } return feed_attrs def fetch_feeds(self): subs = UserSubscription.objects.filter(user=self.user) self.feeds = [] for sub in subs: try: self.feeds.append((sub.feed_id, sub.canonical())) except Feed.DoesNotExist: continue self.feeds = dict(self.feeds) class OPMLImporter(Importer): def __init__(self, opml_xml, user): self.user = user self.opml_xml = opml_xml @timelimit(10) def try_processing(self): folders = self.process() return folders def process(self): # self.clear_feeds() outline = opml.from_string(self.opml_xml) folders = self.get_folders() try: folders = self.process_outline(outline, folders) except AttributeError: folders = None else: # self.clear_folders() self.usf.folders = json.encode(folders) self.usf.save() return folders def process_outline(self, outline, folders, in_folder=''): for item in outline: if (not hasattr(item, 'xmlUrl') and (hasattr(item, 'text') or hasattr(item, 'title'))): folder = item title = getattr(item, 'text', None) or getattr(item, 'title', None) # if hasattr(folder, 'text'): # logging.info(' ---> [%s] ~FRNew Folder: %s' % (self.user, folder.text)) obj = {title: []} folders = add_object_to_folder(obj, in_folder, folders) folders = self.process_outline(folder, folders, title) elif hasattr(item, 'xmlUrl'): feed = item if not hasattr(feed, 'htmlUrl'): setattr(feed, 'htmlUrl', None) # If feed title matches what's in the DB, don't override it on subscription. feed_title = getattr(feed, 'title', None) or getattr(feed, 'text', None) if not feed_title: setattr(feed, 'title', feed.htmlUrl or feed.xmlUrl) user_feed_title = None else: setattr(feed, 'title', feed_title) user_feed_title = feed.title feed_address = urlnorm.normalize(feed.xmlUrl) feed_link = urlnorm.normalize(feed.htmlUrl) if len(feed_address) > Feed._meta.get_field('feed_address').max_length: continue if feed_link and len(feed_link) > Feed._meta.get_field('feed_link').max_length: continue # logging.info(' ---> \t~FR%s - %s - %s' % (feed.title, feed_link, feed_address,)) feed_data = dict(feed_address=feed_address, feed_link=feed_link, feed_title=feed.title) # feeds.append(feed_data) # See if it exists as a duplicate first duplicate_feed = DuplicateFeed.objects.filter(duplicate_address=feed_address) if duplicate_feed: feed_db = duplicate_feed[0].feed else: feed_data['active_subscribers'] = 1 feed_data['num_subscribers'] = 1 feed_db, _ = Feed.find_or_create(feed_address=feed_address, feed_link=feed_link, defaults=dict(**feed_data)) if user_feed_title == feed_db.feed_title: user_feed_title = None try: us = UserSubscription.objects.get( feed=feed_db, user=self.user) except UserSubscription.DoesNotExist: us = None if not us: us = UserSubscription( feed=feed_db, user=self.user, needs_unread_recalc=True, mark_read_date=datetime.datetime.utcnow() - datetime.timedelta(days=1), active=self.user.profile.is_premium, user_title=user_feed_title) us.save() if self.user.profile.is_premium and not us.active: us.active = True us.save() if not us.needs_unread_recalc: us.needs_unread_recalc = True us.save() folders = add_object_to_folder(feed_db.pk, in_folder, folders) return folders def count_feeds_in_opml(self): opml_count = len(opml.from_string(self.opml_xml)) sub_count = UserSubscription.objects.filter(user=self.user).count() return max(sub_count, opml_count) class UploadedOPML(mongo.Document): user_id = mongo.IntField() opml_file = mongo.StringField() upload_date = mongo.DateTimeField(default=datetime.datetime.now) def __str__(self): user = User.objects.get(pk=self.user_id) return "%s: %s characters" % (user.username, len(self.opml_file)) meta = { 'collection': 'uploaded_opml', 'allow_inheritance': False, 'order': '-upload_date', 'indexes': ['user_id', '-upload_date'], }