import datetime import oauth2 as oauth from collections import defaultdict from StringIO import StringIO 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 django.conf import settings from mongoengine.queryset import OperationError import vendor.opml as opml from apps.rss_feeds.models import Feed, DuplicateFeed, MStarredStory from apps.reader.models import UserSubscription, UserSubscriptionFolders from utils import json_functions as json, urlnorm from utils import log as logging class OAuthToken(models.Model): user = models.OneToOneField(User, null=True, blank=True) 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) created_date = models.DateTimeField(default=datetime.datetime.now) class OPMLExporter: def __init__(self, user): self.user = user self.fetch_feeds() def process(self): now = str(datetime.datetime.now()) root = Element('opml') root.set('version', '1.1') root.append(Comment('Generated by NewsBlur - www.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) return tostring(root) def process_outline(self, body, folders): for obj in folders: if isinstance(obj, int) and obj in self.feeds: feed = self.feeds[obj] feed_attrs = self.make_feed_row(feed) body.append(Element('outline', feed_attrs)) elif isinstance(obj, dict): for folder_title, folder_objs in obj.items(): folder_element = Element('outline', {'text': folder_title, 'title': folder_title}) body.append(self.process_outline(folder_element, folder_objs)) 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'], 'xmlUrl': feed['feed_address'], } return feed_attrs def get_folders(self): folders = UserSubscriptionFolders.objects.get(user=self.user) return json.decode(folders.folders) def fetch_feeds(self): subs = UserSubscription.objects.filter(user=self.user) self.feeds = dict((sub.feed.pk, sub.canonical()) for sub in subs) class Importer: def clear_feeds(self): UserSubscriptionFolders.objects.filter(user=self.user).delete() UserSubscription.objects.filter(user=self.user).delete() class OPMLImporter(Importer): def __init__(self, opml_xml, user): self.user = user self.opml_xml = opml_xml def process(self): outline = opml.from_string(self.opml_xml) self.clear_feeds() folders = self.process_outline(outline) UserSubscriptionFolders.objects.create(user=self.user, folders=json.encode(folders)) return folders def process_outline(self, outline): folders = [] for item in outline: if not hasattr(item, 'xmlUrl') and hasattr(item, 'text'): folder = item # if hasattr(folder, 'text'): # logging.info(' ---> [%s] ~FRNew Folder: %s' % (self.user, folder.text)) folders.append({folder.text: self.process_outline(folder)}) 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.objects.get_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 us, _ = UserSubscription.objects.get_or_create( feed=feed_db, user=self.user, defaults={ '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 } ) if self.user.profile.is_premium and not us.active: us.active = True us.save() folders.append(feed_db.pk) return folders class GoogleReaderImporter(Importer): def __init__(self, user, xml=None): self.user = user self.subscription_folders = [] self.scope = "http://www.google.com/reader/api" self.xml = xml def import_feeds(self): sub_url = "%s/0/subscription/list" % self.scope if not self.xml: feeds_xml = self.send_request(sub_url) else: feeds_xml = self.xml self.process_feeds(feeds_xml) def send_request(self, url): user_tokens = OAuthToken.objects.filter(user=self.user) if user_tokens.count(): user_token = user_tokens[0] consumer = oauth.Consumer(settings.OAUTH_KEY, settings.OAUTH_SECRET) token = oauth.Token(user_token.access_token, user_token.access_token_secret) client = oauth.Client(consumer, token) _, content = client.request(url, 'GET') return content def process_feeds(self, feeds_xml): self.clear_feeds() self.feeds = self.parse(feeds_xml) folders = defaultdict(list) for item in self.feeds: folders = self.process_item(item, folders) self.rearrange_folders(folders) logging.user(self.user, "~BB~FW~SBGoogle Reader import: ~BT~FW%s" % (self.subscription_folders)) UserSubscriptionFolders.objects.get_or_create(user=self.user, defaults=dict( folders=json.encode(self.subscription_folders))) def parse(self, feeds_xml): parser = etree.XMLParser(recover=True) tree = etree.parse(StringIO(feeds_xml), parser) feeds = tree.xpath('/object/list/object') return feeds def process_item(self, item, folders): feed_title = item.xpath('./string[@name="title"]') and \ item.xpath('./string[@name="title"]')[0].text feed_address = item.xpath('./string[@name="id"]') and \ item.xpath('./string[@name="id"]')[0].text.replace('feed/', '') feed_link = item.xpath('./string[@name="htmlUrl"]') and \ item.xpath('./string[@name="htmlUrl"]')[0].text category = item.xpath('./list[@name="categories"]/object/string[@name="label"]') and \ item.xpath('./list[@name="categories"]/object/string[@name="label"]')[0].text if not feed_address: feed_address = feed_link try: feed_link = urlnorm.normalize(feed_link) feed_address = urlnorm.normalize(feed_address) if len(feed_address) > Feed._meta.get_field('feed_address').max_length: return folders # 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 = dict(feed_address=feed_address, feed_link=feed_link, feed_title=feed_title) feed_data['active_subscribers'] = 1 feed_data['num_subscribers'] = 1 feeds = Feed.objects.filter(feed_address=feed_address, branch_from_feed__isnull=True).order_by('-num_subscribers') if feeds: feed_db = feeds[0] else: feed_db = Feed.objects.create(**feed_data) us, _ = UserSubscription.objects.get_or_create( feed=feed_db, user=self.user, defaults={ 'needs_unread_recalc': True, 'mark_read_date': datetime.datetime.utcnow() - datetime.timedelta(days=1), 'active': self.user.profile.is_premium, } ) if not category: category = "Root" folders[category].append(feed_db.pk) except Exception, e: logging.info(' *** -> Exception: %s' % e) return folders def rearrange_folders(self, folders, depth=0): for folder, items in folders.items(): if folder == 'Root': self.subscription_folders += items else: # folder_parents = folder.split(u' \u2014 ') self.subscription_folders.append({folder: items}) def import_starred_items(self, count=10): sub_url = "%s/0/stream/contents/user/-/state/com.google/starred?n=%s" % (self.scope, count) stories_str = self.send_request(sub_url) try: stories = json.decode(stories_str) except: logging.user(self.user, "~BB~FW~SBGoogle Reader starred stories: ~BT~FWNo stories") stories = None if stories: logging.user(self.user, "~BB~FW~SBGoogle Reader starred stories: ~BT~FW%s stories" % (len(stories['items']))) self.process_starred_items(stories['items']) def process_starred_items(self, stories): for story in stories: try: original_feed = Feed.get_feed_from_url(story['origin']['streamId'], create=False, fetch=False) if not original_feed: original_feed = Feed.get_feed_from_url(story['origin']['htmlUrl'], create=False, fetch=False) content = story.get('content') or story.get('summary') story_db = { "user_id": self.user.pk, "starred_date": datetime.datetime.fromtimestamp(story['updated']), "story_date": datetime.datetime.fromtimestamp(story['published']), "story_title": story.get('title', story.get('origin', {}).get('title', '[Untitled]')), "story_permalink": story['alternate'][0]['href'], "story_guid": story['id'], "story_content": content.get('content'), "story_author_name": story.get('author'), "story_feed_id": original_feed and original_feed.pk, "story_tags": [tag for tag in story.get('categories', []) if 'user/' not in tag] } logging.user(self.user, "~FCStarring: ~SB%s~SN in ~SB%s" % (story_db['story_title'][:50], original_feed and original_feed)) MStarredStory.objects.create(**story_db) except OperationError: logging.user(self.user, "~FCAlready starred: ~SB%s" % (story_db['story_title'][:50])) except Exception, e: logging.user(self.user, "~FC~BRFailed to star: ~SB%s / %s" % (story, e))