NewsBlur/apps/social/views.py

import time
import datetime
import zlib
import random
import re
from bson.objectid import ObjectId
from mongoengine.queryset import NotUniqueError
from django.shortcuts import get_object_or_404, render
from django.urls import reverse
from django.contrib.auth.models import User
from django.contrib.sites.models import Site
from django.template.loader import render_to_string
from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponseForbidden
from django.conf import settings
from django.utils import feedgenerator
from apps.rss_feeds.models import MStory, Feed, MStarredStory
from apps.social.models import MSharedStory, MSocialServices, MSocialProfile, MSocialSubscription, MCommentReply
from apps.social.models import MInteraction, MActivity, MFollowRequest
from apps.social.tasks import PostToService, EmailCommentReplies, EmailStoryReshares
from apps.social.tasks import UpdateRecalcForSubscription, EmailFirstShare
from apps.analyzer.models import MClassifierTitle, MClassifierAuthor, MClassifierFeed, MClassifierTag
from apps.analyzer.models import apply_classifier_titles, apply_classifier_feeds, apply_classifier_authors, apply_classifier_tags
from apps.analyzer.models import get_classifiers_for_user, sort_classifiers_by_feed
from apps.reader.models import UserSubscription
from apps.profile.models import Profile
from utils import json_functions as json
from utils import log as logging
from utils.user_functions import get_user, ajax_login_required
from utils.view_functions import render_to, is_true
from utils.view_functions import required_params
from utils.story_functions import format_story_link_date__short
from utils.story_functions import format_story_link_date__long
from utils.story_functions import strip_tags
from utils.ratelimit import ratelimit
from utils import jennyholzer
from vendor.timezones.utilities import localtime_for_timezone


@json.json_view
def load_social_stories(request, user_id, username=None):
    user           = get_user(request)
    social_user_id = int(user_id)
    social_user    = get_object_or_404(User, pk=social_user_id)
    offset         = int(request.GET.get('offset', 0))
    limit          = int(request.GET.get('limit', 6))
    page           = int(request.GET.get('page', 1))
    order          = request.GET.get('order', 'newest')
    read_filter    = request.GET.get('read_filter', 'all')
    query          = request.GET.get('query', '').strip()
    include_story_content = is_true(request.GET.get('include_story_content', True))
    stories        = []
    message        = None
    
    if page: offset = limit * (int(page) - 1)
    now = localtime_for_timezone(datetime.datetime.now(), user.profile.timezone)
    
    social_profile = MSocialProfile.get_user(social_user.pk)
    try:
        socialsub = MSocialSubscription.objects.get(user_id=user.pk, subscription_user_id=social_user_id)
    except MSocialSubscription.DoesNotExist:
        socialsub = None
    
    if social_profile.private and not social_profile.is_followed_by_user(user.pk):
        message = "%s has a private blurblog and you must be following them in order to read it." % social_profile.username
    elif query:
        if user.profile.is_premium:
            stories = social_profile.find_stories(query, offset=offset, limit=limit)
        else:
            stories = []
            message = "You must be a premium subscriber to search."
    elif socialsub and (read_filter == 'unread' or order == 'oldest'):
        cutoff_date = max(socialsub.mark_read_date, user.profile.unread_cutoff)
        story_hashes = socialsub.get_stories(order=order, read_filter=read_filter, offset=offset, limit=limit, cutoff_date=cutoff_date)
        story_date_order = "%sshared_date" % ('' if order == 'oldest' else '-')
        if story_hashes:
            mstories = MSharedStory.objects(user_id=social_user.pk,
                                            story_hash__in=story_hashes).order_by(story_date_order)
            for story in mstories: story.extract_image_urls()
            stories = Feed.format_stories(mstories)
    else:
        mstories = MSharedStory.objects(user_id=social_user.pk).order_by('-shared_date')[offset:offset+limit]
        for story in mstories: story.extract_image_urls()
        stories = Feed.format_stories(mstories)

    if not stories or False: # False is to force a recount even if 0 stories
        return dict(stories=[], message=message)
    
    stories, user_profiles = MSharedStory.stories_with_comments_and_profiles(stories, user.pk, check_all=True)

    story_feed_ids = list(set(s['story_feed_id'] for s in stories))
    usersubs = UserSubscription.objects.filter(user__pk=user.pk, feed__pk__in=story_feed_ids)
    usersubs_map = dict((sub.feed_id, sub) for sub in usersubs)
    unsub_feed_ids = list(set(story_feed_ids).difference(set(usersubs_map.keys())))
    unsub_feeds = Feed.objects.filter(pk__in=unsub_feed_ids)
    unsub_feeds = [feed.canonical(include_favicon=False) for feed in unsub_feeds]
    date_delta = user.profile.unread_cutoff
    if socialsub and date_delta < socialsub.mark_read_date:
        date_delta = socialsub.mark_read_date
    
    # Get intelligence classifier for user
    classifier_feeds   = list(MClassifierFeed.objects(user_id=user.pk, social_user_id=social_user_id))
    classifier_authors = list(MClassifierAuthor.objects(user_id=user.pk, social_user_id=social_user_id))
    classifier_titles  = list(MClassifierTitle.objects(user_id=user.pk, social_user_id=social_user_id))
    classifier_tags    = list(MClassifierTag.objects(user_id=user.pk, social_user_id=social_user_id))
    # Merge with feed specific classifiers
    classifier_feeds   = classifier_feeds + list(MClassifierFeed.objects(user_id=user.pk, feed_id__in=story_feed_ids))
    classifier_authors = classifier_authors + list(MClassifierAuthor.objects(user_id=user.pk, feed_id__in=story_feed_ids))
    classifier_titles  = classifier_titles + list(MClassifierTitle.objects(user_id=user.pk, feed_id__in=story_feed_ids))
    classifier_tags    = classifier_tags + list(MClassifierTag.objects(user_id=user.pk, feed_id__in=story_feed_ids))

    unread_story_hashes = []
    if (read_filter == 'all' or query) and socialsub:
        unread_story_hashes = socialsub.get_stories(read_filter='unread', limit=500, cutoff_date=user.profile.unread_cutoff)
    story_hashes = [story['story_hash'] for story in stories]

    starred_stories = MStarredStory.objects(user_id=user.pk, 
                                            story_hash__in=story_hashes)\
                                   .only('story_hash', 'starred_date', 'user_tags')
    shared_stories = MSharedStory.objects(user_id=user.pk, 
                                          story_hash__in=story_hashes)\
                                 .hint([('story_hash', 1)])\
                                 .only('story_hash', 'shared_date', 'comments')
    starred_stories = dict([(story.story_hash, dict(starred_date=story.starred_date,
                                                    user_tags=story.user_tags))
                            for story in starred_stories])
    shared_stories = dict([(story.story_hash, dict(shared_date=story.shared_date,
                                                   comments=story.comments))
                           for story in shared_stories])
    
    nowtz = localtime_for_timezone(now, user.profile.timezone)
    for story in stories:
        if not include_story_content:
            del story['story_content']
        story['social_user_id'] = social_user_id
        # story_date = localtime_for_timezone(story['story_date'], user.profile.timezone)
        shared_date = localtime_for_timezone(story['shared_date'], user.profile.timezone)
        story['short_parsed_date'] = format_story_link_date__short(shared_date, nowtz)
        story['long_parsed_date'] = format_story_link_date__long(shared_date, nowtz)
        
        story['read_status'] = 1
        if story['story_date'] < user.profile.unread_cutoff:
            story['read_status'] = 1
        elif (read_filter == 'all' or query) and socialsub:
            story['read_status'] = 1 if story['story_hash'] not in unread_story_hashes else 0
        elif read_filter == 'unread' and socialsub:
            story['read_status'] = 0

        if story['story_hash'] in starred_stories:
            story['starred'] = True
            starred_date = localtime_for_timezone(starred_stories[story['story_hash']]['starred_date'],
                                                  user.profile.timezone)
            story['starred_date'] = format_story_link_date__long(starred_date, now)
            story['user_tags'] = starred_stories[story['story_hash']]['user_tags']
        if story['story_hash'] in shared_stories:
            story['shared'] = True
            story['shared_comments'] = strip_tags(shared_stories[story['story_hash']]['comments'])

        story['intelligence'] = {
            'feed': apply_classifier_feeds(classifier_feeds, story['story_feed_id'],
                                           social_user_ids=social_user_id),
            'author': apply_classifier_authors(classifier_authors, story),
            'tags': apply_classifier_tags(classifier_tags, story),
            'title': apply_classifier_titles(classifier_titles, story),
        }
    
    
    classifiers = sort_classifiers_by_feed(user=user, feed_ids=story_feed_ids,
                                           classifier_feeds=classifier_feeds,
                                           classifier_authors=classifier_authors,
                                           classifier_titles=classifier_titles,
                                           classifier_tags=classifier_tags)
    if socialsub:
        socialsub.feed_opens += 1
        socialsub.needs_unread_recalc = True
        socialsub.save()
    
    search_log = "~SN~FG(~SB%s~SN)" % query if query else ""
    logging.user(request, "~FYLoading ~FMshared stories~FY: ~SB%s%s %s" % (
    social_profile.title[:22], ('~SN/p%s' % page) if page > 1 else '', search_log))

    return {
        "stories": stories, 
        "user_profiles": user_profiles, 
        "feeds": unsub_feeds, 
        "classifiers": classifiers,
    }
    
@json.json_view
def load_river_blurblog(request):
    limit             = 10
    start             = time.time()
    user              = get_user(request)
    social_user_ids   = request.GET.getlist('social_user_ids') or request.GET.getlist('social_user_ids[]')
    social_user_ids   = [int(uid) for uid in social_user_ids if uid]
    original_user_ids = list(social_user_ids)
    page              = int(request.GET.get('page', 1))
    order             = request.GET.get('order', 'newest')
    read_filter       = request.GET.get('read_filter', 'unread')
    relative_user_id  = request.GET.get('relative_user_id', None)
    global_feed       = request.GET.get('global_feed', None)
    now               = localtime_for_timezone(datetime.datetime.now(), user.profile.timezone)

    if global_feed:
        global_user = User.objects.get(username='popular')
        relative_user_id = global_user.pk
    
    if not relative_user_id:
        relative_user_id = user.pk

    socialsubs = MSocialSubscription.objects.filter(user_id=relative_user_id)
    if social_user_ids:
        socialsubs = socialsubs.filter(subscription_user_id__in=social_user_ids)

    if not social_user_ids:
        social_user_ids = [s.subscription_user_id for s in socialsubs]
        
    offset = (page-1) * limit
    limit = page * limit - 1
    
    story_hashes, story_dates, unread_feed_story_hashes = MSocialSubscription.feed_stories(
                                                    user.pk, social_user_ids, 
                                                    offset=offset, limit=limit,
                                                    order=order, read_filter=read_filter,
                                                    relative_user_id=relative_user_id,
                                                    socialsubs=socialsubs,
                                                    cutoff_date=user.profile.unread_cutoff)
    mstories = MStory.find_by_story_hashes(story_hashes)
    story_hashes_to_dates = dict(list(zip(story_hashes, story_dates)))
    def sort_stories_by_hash(a, b):
        return (int(story_hashes_to_dates[str(b.story_hash)]) -
                int(story_hashes_to_dates[str(a.story_hash)]))
    sorted_mstories = sorted(mstories, key=sort_stories_by_hash)
    stories = Feed.format_stories(sorted_mstories)
    for s, story in enumerate(stories):
        timestamp = story_hashes_to_dates[story['story_hash']]
        story['story_date'] = datetime.datetime.fromtimestamp(timestamp)
    share_relative_user_id = relative_user_id
    if global_feed:
        share_relative_user_id = user.pk
    stories, user_profiles = MSharedStory.stories_with_comments_and_profiles(stories,
                                                                             share_relative_user_id,
                                                                             check_all=True)

    story_feed_ids = list(set(s['story_feed_id'] for s in stories))
    usersubs = UserSubscription.objects.filter(user__pk=user.pk, feed__pk__in=story_feed_ids)
    usersubs_map = dict((sub.feed_id, sub) for sub in usersubs)
    unsub_feed_ids = list(set(story_feed_ids).difference(set(usersubs_map.keys())))
    unsub_feeds = Feed.objects.filter(pk__in=unsub_feed_ids)
    unsub_feeds = [feed.canonical(include_favicon=False) for feed in unsub_feeds]
    
    if story_feed_ids:
        story_hashes = [story['story_hash'] for story in stories]
        starred_stories = MStarredStory.objects(
            user_id=user.pk,
            story_hash__in=story_hashes
        ).only('story_hash', 'starred_date', 'user_tags')
        starred_stories = dict([(story.story_hash, dict(starred_date=story.starred_date,
                                                        user_tags=story.user_tags)) 
                                for story in starred_stories])
        shared_stories = MSharedStory.objects(user_id=user.pk, 
                                              story_hash__in=story_hashes)\
                                     .hint([('story_hash', 1)])\
                                     .only('story_hash', 'shared_date', 'comments')
        shared_stories = dict([(story.story_hash, dict(shared_date=story.shared_date,
                                                       comments=story.comments))
                           for story in shared_stories])  
    else:
        starred_stories = {}
        shared_stories = {}
    
    # Intelligence classifiers for all feeds involved
    if story_feed_ids:
        classifier_feeds = list(MClassifierFeed.objects(user_id=user.pk,
                                                        social_user_id__in=social_user_ids))
        classifier_feeds = classifier_feeds + list(MClassifierFeed.objects(user_id=user.pk,
                                                   feed_id__in=story_feed_ids))
        classifier_authors = list(MClassifierAuthor.objects(user_id=user.pk, 
                                                       feed_id__in=story_feed_ids))
        classifier_titles = list(MClassifierTitle.objects(user_id=user.pk, 
                                                     feed_id__in=story_feed_ids))
        classifier_tags = list(MClassifierTag.objects(user_id=user.pk, 
                                                 feed_id__in=story_feed_ids))
    else:
        classifier_feeds = []
        classifier_authors = []
        classifier_titles = []
        classifier_tags = []
    
    # Just need to format stories
    nowtz = localtime_for_timezone(now, user.profile.timezone)
    for story in stories:
        story['read_status'] = 0
        if story['story_hash'] not in unread_feed_story_hashes:
            story['read_status'] = 1
        story_date = localtime_for_timezone(story['story_date'], user.profile.timezone)
        story['short_parsed_date'] = format_story_link_date__short(story_date, nowtz)
        story['long_parsed_date']  = format_story_link_date__long(story_date, nowtz)
        if story['story_hash'] in starred_stories:
            story['starred'] = True
            starred_date = localtime_for_timezone(starred_stories[story['story_hash']]['starred_date'], user.profile.timezone)
            story['starred_date'] = format_story_link_date__long(starred_date, now)
            story['user_tags'] = starred_stories[story['story_hash']]['user_tags']
        story['intelligence'] = {
            'feed':   apply_classifier_feeds(classifier_feeds, story['story_feed_id'],
                                             social_user_ids=story['friend_user_ids']),
            'author': apply_classifier_authors(classifier_authors, story),
            'tags':   apply_classifier_tags(classifier_tags, story),
            'title':  apply_classifier_titles(classifier_titles, story),
        }
        if story['story_hash'] in shared_stories:
            story['shared'] = True
            shared_date = localtime_for_timezone(shared_stories[story['story_hash']]['shared_date'],
                                                 user.profile.timezone)
            story['shared_date'] = format_story_link_date__long(shared_date, now)
            story['shared_comments'] = strip_tags(shared_stories[story['story_hash']]['comments'])
            if (shared_stories[story['story_hash']]['shared_date'] < user.profile.unread_cutoff or 
                story['story_hash'] not in unread_feed_story_hashes):
                story['read_status'] = 1

    classifiers = sort_classifiers_by_feed(user=user, feed_ids=story_feed_ids,
                                           classifier_feeds=classifier_feeds,
                                           classifier_authors=classifier_authors,
                                           classifier_titles=classifier_titles,
                                           classifier_tags=classifier_tags)

    diff = time.time() - start
    timediff = round(float(diff), 2)
    logging.user(request, "~FYLoading ~FCriver ~FMblurblogs~FC stories~FY: ~SBp%s~SN (%s/%s "
                               "stories, ~SN%s/%s/%s feeds)" % 
                               (page, len(stories), len(mstories), len(story_feed_ids), 
                               len(social_user_ids), len(original_user_ids)))
    
    
    return {
        "stories": stories, 
        "user_profiles": user_profiles, 
        "feeds": unsub_feeds, 
        "classifiers": classifiers,
        "elapsed_time": timediff,
    }
    
def load_social_page(request, user_id, username=None, **kwargs):
    user = get_user(request.user)
    social_user_id = int(user_id)
    social_user = get_object_or_404(User, pk=social_user_id)
    offset = int(request.GET.get('offset', 0))
    limit = int(request.GET.get('limit', 6))
    try:
        page = int(request.GET.get('page', 1))
    except ValueError:
        page = 1
    format = request.GET.get('format', None)
    has_next_page = False
    feed_id = kwargs.get('feed_id') or request.GET.get('feed_id')
    if page: 
        offset = limit * (page-1)
    social_services = None
    user_social_profile = None
    user_social_services = None
    user_following_social_profile = None
    relative_user_id = user_id
    if user.is_authenticated:
        user_social_profile = MSocialProfile.get_user(user.pk)
        user_social_services = MSocialServices.get_user(user.pk)
        user_following_social_profile = user_social_profile.is_following_user(social_user_id)
    social_profile = MSocialProfile.get_user(social_user_id)
    
    if '.dev' in username:
        username = username.replace('.dev', '')
    current_tab = "blurblogs"
    global_feed = False
    if username == "popular":
        current_tab = username
    elif username == "popular.global":
        current_tab = "global"
        global_feed = True
    
    if social_profile.private and (not user.is_authenticated or 
                                   not social_profile.is_followed_by_user(user.pk)):
        stories = []
    elif global_feed:
        socialsubs = MSocialSubscription.objects.filter(user_id=relative_user_id) 
        social_user_ids = [s.subscription_user_id for s in socialsubs]
        story_ids, story_dates, _ = MSocialSubscription.feed_stories(user.pk, social_user_ids, 
                                                 offset=offset, limit=limit+1,
                                                 # order=order, read_filter=read_filter,
                                                 relative_user_id=relative_user_id,
                                                 cache=request.user.is_authenticated,
                                                 cutoff_date=user.profile.unread_cutoff)
        if len(story_ids) > limit:
            has_next_page = True
            story_ids = story_ids[:-1]
        mstories = MStory.find_by_story_hashes(story_ids)
        story_id_to_dates = dict(list(zip(story_ids, story_dates)))
        def sort_stories_by_id(a, b):
            return int(story_id_to_dates[str(b.story_hash)]) - int(story_id_to_dates[str(a.story_hash)])
        sorted_mstories = sorted(mstories, key=sort_stories_by_id)
        stories = Feed.format_stories(sorted_mstories)
        for story in stories:
            story['shared_date'] = story['story_date']
    else:
        params = dict(user_id=social_user.pk)
        if feed_id:
            params['story_feed_id'] = feed_id
        if 'story_db_id' in params:
            params.pop('story_db_id')
        mstories = MSharedStory.objects(**params).order_by('-shared_date')[offset:offset+limit+1]
        stories = Feed.format_stories(mstories, include_permalinks=True)
        
        if len(stories) > limit:
            has_next_page = True
            stories = stories[:-1]

    if not stories:
        params = {
            "user": user,
            "stories": [],
            "feeds": {},
            "social_user": social_user,
            "social_profile": social_profile,
            "user_social_services": user_social_services,
            'user_social_profile' : json.encode(user_social_profile and user_social_profile.page()),
            'user_following_social_profile': user_following_social_profile,
        }
        template = 'social/social_page.xhtml'
        return render(request, template, params)

    story_feed_ids = list(set(s['story_feed_id'] for s in stories))
    feeds = Feed.objects.filter(pk__in=story_feed_ids)
    feeds = dict((feed.pk, feed.canonical(include_favicon=False)) for feed in feeds)
    for story in stories:
        if story['story_feed_id'] in feeds:
            # Feed could have been deleted.
            story['feed'] = feeds[story['story_feed_id']]
        shared_date = localtime_for_timezone(story['shared_date'], user.profile.timezone)
        story['shared_date'] = shared_date
    
    stories, profiles = MSharedStory.stories_with_comments_and_profiles(stories, social_user.pk, 
                                                                        check_all=True)

    if user.is_authenticated:
        for story in stories:
            if user.pk in story['share_user_ids']:
                story['shared_by_user'] = True
                shared_story = MSharedStory.objects.hint([('story_hash', 1)])\
                                                   .get(user_id=user.pk, 
                                                        story_feed_id=story['story_feed_id'],
                                                        story_hash=story['story_hash'])
                story['user_comments'] = shared_story.comments

    stories = MSharedStory.attach_users_to_stories(stories, profiles)
    
    active_story = None
    path = request.META['PATH_INFO']
    if '/story/' in path and format != 'html':
        story_id = re.sub(r"^/story/.*?/(.*?)/?", "", path)
        if not story_id or '/story' in story_id:
            story_id = path.replace('/story/', '')
        social_services = MSocialServices.get_user(social_user.pk)

        active_story_db = MSharedStory.objects.filter(user_id=social_user.pk,
                                                      story_hash=story_id)\
                                               .hint([('story_hash', 1)])\
                                               .limit(1)
        if active_story_db:
            active_story_db = active_story_db[0]
            if user_social_profile.bb_permalink_direct:
                return HttpResponseRedirect(active_story_db.story_permalink)
            active_story = Feed.format_story(active_story_db)
            if active_story_db.image_count:
                active_story['image_url'] = active_story_db.image_sizes[0]['src']
            active_story['tags'] = ', '.join(active_story_db.story_tags)
            active_story['blurblog_permalink'] = active_story_db.blurblog_permalink()
            active_story['iso8601'] = active_story_db.story_date.isoformat()
            if active_story['story_feed_id']:
                feed = Feed.get_by_id(active_story['story_feed_id'])
                if feed:
                    active_story['feed'] = feed.canonical()
    
    params = {
        'social_user'   : social_user,
        'stories'       : stories,
        'user_social_profile' : user_social_profile,
        'user_social_profile_page' : json.encode(user_social_profile and user_social_profile.page()),
        'user_social_services' : user_social_services,
        'user_social_services_page' : json.encode(user_social_services and user_social_services.canonical()),
        'user_following_social_profile': user_following_social_profile,
        'social_profile': social_profile,
        'feeds'         : feeds,
        'user_profile'  : hasattr(user, 'profile') and user.profile,
        'has_next_page' : has_next_page,
        'holzer_truism' : random.choice(jennyholzer.TRUISMS), #if not has_next_page else None
        'facebook_app_id': settings.FACEBOOK_APP_ID,
        'active_story'  : active_story,
        'current_tab'   : current_tab,
        'social_services': social_services,
    }

    logging.user(request, "~FYLoading ~FMsocial page~FY: ~SB%s%s ~FM%s/%s" % (
        social_profile.title[:22], ('~SN/p%s' % page) if page > 1 else '',
        request.META.get('HTTP_USER_AGENT', "")[:40],
        request.META.get('HTTP_X_FORWARDED_FOR', "")))
    if format == 'html':
        template = 'social/social_stories.xhtml'
    else:
        template = 'social/social_page.xhtml'
        
    return render(request, template, params)

@required_params('story_id', feed_id=int)
def story_public_comments(request):
    format           = request.GET.get('format', 'json')
    relative_user_id = request.GET.get('user_id', None)
    feed_id          = int(request.GET.get('feed_id'))
    story_id         = request.GET.get('story_id')
  
    if not relative_user_id:
        relative_user_id = get_user(request).pk
    
    story, _ = MStory.find_story(story_feed_id=feed_id, story_id=story_id)
    if not story:
        return json.json_response(request, {
            'message': "Story not found.",
            'code': -1,
        })
        
    story = Feed.format_story(story)
    stories, profiles = MSharedStory.stories_with_comments_and_profiles([story],
                                                                        relative_user_id, 
                                                                        check_all=True)
    
    if format == 'html':
        stories = MSharedStory.attach_users_to_stories(stories, profiles)
        return render(request, 'social/story_comments.xhtml', {
            'story': stories[0],
        })
    else:
        return json.json_response(request, {
            'comments': stories[0]['public_comments'], 
            'user_profiles': profiles,
        })

@ajax_login_required
def mark_story_as_shared(request):
    code     = 1
    feed_id  = int(request.POST['feed_id'])
    story_id = request.POST['story_id']
    comments = request.POST.get('comments', '')
    source_user_id = request.POST.get('source_user_id')
    relative_user_id = request.POST.get('relative_user_id') or request.user.pk
    post_to_services = request.POST.getlist('post_to_services') or request.POST.getlist('post_to_services[]')
    format = request.POST.get('format', 'json')    
    now = datetime.datetime.now()
    nowtz = localtime_for_timezone(now, request.user.profile.timezone)
    
    MSocialProfile.get_user(request.user.pk)
    
    story, original_story_found = MStory.find_story(feed_id, story_id)

    if not story:
        return json.json_response(request, {
            'code': -1, 
            'message': 'Could not find the original story and no copies could be found.'
        })
    
    feed = Feed.get_by_id(feed_id)
    if feed and feed.is_newsletter:
        return json.json_response(request, {
            'code': -1, 
            'message': 'You cannot share newsletters. Somebody could unsubscribe you!'
        })
        
    if not request.user.profile.is_premium and MSharedStory.feed_quota(request.user.pk, story.story_hash, feed_id=feed_id):
        return json.json_response(request, {
            'code': -1, 
            'message': 'Only premium users can share multiple stories per day from the same site.'
        })
    
    quota = 100
    if not request.user.profile.is_premium:
        quota = 3
    if MSharedStory.feed_quota(request.user.pk, story.story_hash, quota=quota):
        logging.user(request, "~FRNOT ~FCSharing ~FM%s~FC, over quota: ~SB~FB%s" % (story.story_title[:20], comments[:30]))
        message = 'You can only share up to %s stories per day.' % quota
        if not request.user.profile.is_premium:
            message = 'You can only share up to %s stories per day as a free user. Upgrade to premium to share more.' % quota
        return json.json_response(request, {
            'code': -1, 
            'message': message
        })
    
    shared_story = MSharedStory.objects.filter(user_id=request.user.pk, 
                                               story_feed_id=feed_id, 
                                               story_hash=story['story_hash'])\
                                        .hint([('story_hash', 1)])\
                                        .limit(1).first()
    if not shared_story:
        story_db = {
            "story_guid": story.story_guid,
            "story_hash": story.story_hash,
            "story_permalink": story.story_permalink,
            "story_title": story.story_title,
            "story_feed_id": story.story_feed_id,
            "story_content_z": getattr(story, 'story_latest_content_z', None) or story.story_content_z,
            "story_author_name": story.story_author_name,
            "story_tags": story.story_tags,
            "story_date": story.story_date,
            "user_id": request.user.pk,
            "comments": comments,
            "has_comments": bool(comments),
        }
        try:
            shared_story = MSharedStory.objects.create(**story_db)
        except NotUniqueError:
            shared_story = MSharedStory.objects.get(story_guid=story_db['story_guid'],
                                                    user_id=story_db['user_id'])
        except MSharedStory.DoesNotExist:
            return json.json_response(request, {
                'code': -1, 
                'message': 'Story already shared but then not shared. I don\'t really know. Did you submit this twice very quickly?'
            })
        if source_user_id:
            shared_story.set_source_user_id(int(source_user_id))
        UpdateRecalcForSubscription().delay(subscription_user_id=request.user.pk,
                                          shared_story_id=str(shared_story.id))
        logging.user(request, "~FCSharing ~FM%s: ~SB~FB%s" % (story.story_title[:20], comments[:30]))
    else:
        shared_story.comments = comments
        shared_story.has_comments = bool(comments)
        shared_story.save()
        logging.user(request, "~FCUpdating shared story ~FM%s: ~SB~FB%s" % (
                     story.story_title[:20], comments[:30]))
    
    if original_story_found:
        story.count_comments()
    
    story = Feed.format_story(story)
    check_all = not original_story_found
    stories, profiles = MSharedStory.stories_with_comments_and_profiles([story], relative_user_id,
                                                                        check_all=check_all)
    story = stories[0]
    starred_stories = MStarredStory.objects(user_id=request.user.pk, 
                                             story_feed_id=story['story_feed_id'], 
                                             story_hash=story['story_hash'])\
                                       .only('story_hash', 'starred_date', 'user_tags').limit(1)
    if starred_stories:
        story['user_tags'] = starred_stories[0]['user_tags']
        story['starred'] = True
        starred_date = localtime_for_timezone(starred_stories[0]['starred_date'],
                                              request.user.profile.timezone)
        story['starred_date'] = format_story_link_date__long(starred_date, now)
    story['shared_comments'] = strip_tags(shared_story['comments'] or "")
    story['shared_by_user'] = True
    story['shared'] = True
    shared_date = localtime_for_timezone(shared_story['shared_date'], request.user.profile.timezone)
    story['short_parsed_date'] = format_story_link_date__short(shared_date, nowtz)
    story['long_parsed_date'] = format_story_link_date__long(shared_date, nowtz)
            
    if post_to_services:
        for service in post_to_services:
            if service not in shared_story.posted_to_services:
                PostToService().delay(shared_story_id=str(shared_story.id), service=service)
    
    if shared_story.source_user_id and shared_story.comments:
        EmailStoryReshares().apply_async(kwargs=dict(shared_story_id=str(shared_story.id)),
                                       countdown=settings.SECONDS_TO_DELAY_CELERY_EMAILS)
    
    EmailFirstShare().apply_async(kwargs=dict(user_id=request.user.pk))
    
    if format == 'html':
        stories = MSharedStory.attach_users_to_stories(stories, profiles)
        return render(request, 'social/social_story.xhtml', {
            'story': story,
        })
    else:
        return json.json_response(request, {
            'code': code, 
            'story': story, 
            'user_profiles': profiles,
        })

@ajax_login_required
def mark_story_as_unshared(request):
    feed_id  = int(request.POST['feed_id'])
    story_id = request.POST['story_id']
    relative_user_id = request.POST.get('relative_user_id') or request.user.pk
    format = request.POST.get('format', 'json')
    original_story_found = True
    
    story, original_story_found = MStory.find_story(story_feed_id=feed_id, 
                                                    story_id=story_id)
    
    shared_story = MSharedStory.objects(user_id=request.user.pk, 
                                        story_feed_id=feed_id, 
                                        story_hash=story['story_hash']).limit(1).first()
    if not shared_story:
        return json.json_response(request, {'code': -1, 'message': 'Shared story not found.'})
    
    shared_story.unshare_story()
    
    if original_story_found:
        story.count_comments()
    else:
        story = shared_story
    
    story = Feed.format_story(story)
    stories, profiles = MSharedStory.stories_with_comments_and_profiles([story], 
                                                                        relative_user_id, 
                                                                        check_all=True)

    if format == 'html':
        stories = MSharedStory.attach_users_to_stories(stories, profiles)
        return render(request, 'social/social_story.xhtml', {
            'story': stories[0],
        })
    else:
        return json.json_response(request, {
            'code': 1, 
            'message': "Story unshared.", 
            'story': stories[0], 
            'user_profiles': profiles,
        })
    
@ajax_login_required
def save_comment_reply(request):
    code     = 1
    feed_id  = int(request.POST['story_feed_id'])
    story_id = request.POST['story_id']
    comment_user_id = request.POST['comment_user_id']
    reply_comments = request.POST.get('reply_comments')
    reply_id = request.POST.get('reply_id')
    format = request.POST.get('format', 'json')
    original_message = None
    
    if not reply_comments:
        return json.json_response(request, {
            'code': -1, 
            'message': 'Reply comments cannot be empty.',
        })
    
    commenter_profile = MSocialProfile.get_user(comment_user_id)
    if commenter_profile.protected and not commenter_profile.is_followed_by_user(request.user.pk):
        return json.json_response(request, {
            'code': -1, 
            'message': 'You must be following %s to reply to them.' % commenter_profile.username,
        })
    
    try:
        shared_story = MSharedStory.objects.get(user_id=comment_user_id, 
                                                story_feed_id=feed_id, 
                                                story_guid=story_id)
    except MSharedStory.DoesNotExist:
        return json.json_response(request, {
            'code': -1, 
            'message': 'Shared story cannot be found.',
        })
        
    reply = MCommentReply()
    reply.user_id = request.user.pk
    reply.publish_date = datetime.datetime.now()
    reply.comments = reply_comments
    
    if reply_id:
        replies = []
        for story_reply in shared_story.replies:
            if (story_reply.user_id == reply.user_id and 
                story_reply.reply_id == ObjectId(reply_id)):
                reply.publish_date = story_reply.publish_date
                reply.reply_id = story_reply.reply_id
                original_message = story_reply.comments
                replies.append(reply)
            else:
                replies.append(story_reply)
        shared_story.replies = replies
        logging.user(request, "~FCUpdating comment reply in ~FM%s: ~SB~FB%s~FM" % (
                 shared_story.story_title[:20], reply_comments[:30]))
    else:
        reply.reply_id = ObjectId()
        logging.user(request, "~FCReplying to comment in: ~FM%s: ~SB~FB%s~FM" % (
                     shared_story.story_title[:20], reply_comments[:30]))
        shared_story.replies.append(reply)
    shared_story.save()
    
    comment, profiles = shared_story.comment_with_author_and_profiles()
    
    # Interaction for every other replier and original commenter
    MActivity.new_comment_reply(user_id=request.user.pk,
                                comment_user_id=comment['user_id'],
                                reply_content=reply_comments,
                                original_message=original_message,
                                story_id=story_id,
                                story_feed_id=feed_id,
                                story_title=shared_story.story_title)
    if comment['user_id'] != request.user.pk:
        MInteraction.new_comment_reply(user_id=comment['user_id'], 
                                       reply_user_id=request.user.pk, 
                                       reply_content=reply_comments,
                                       original_message=original_message,
                                       story_id=story_id,
                                       story_feed_id=feed_id,
                                       story_title=shared_story.story_title)

    reply_user_ids = list(r['user_id'] for r in comment['replies'])
    for user_id in set(reply_user_ids).difference([comment['user_id']]):
        if request.user.pk != user_id:
            MInteraction.new_reply_reply(user_id=user_id, 
                                         comment_user_id=comment['user_id'],
                                         reply_user_id=request.user.pk, 
                                         reply_content=reply_comments,
                                         original_message=original_message,
                                         story_id=story_id,
                                         story_feed_id=feed_id,
                                         story_title=shared_story.story_title)

    EmailCommentReplies().apply_async(kwargs=dict(shared_story_id=str(shared_story.id),
                                                reply_id=str(reply.reply_id)), 
                                                countdown=settings.SECONDS_TO_DELAY_CELERY_EMAILS)
    
    if format == 'html':
        comment = MSharedStory.attach_users_to_comment(comment, profiles)
        return render(request, 'social/story_comment.xhtml', {
            'comment': comment,
        })
    else:
        return json.json_response(request, {
            'code': code, 
            'comment': comment, 
            'reply_id': reply.reply_id,
            'user_profiles': profiles
        })

@ajax_login_required
def remove_comment_reply(request):
    code     = 1
    feed_id  = int(request.POST['story_feed_id'])
    story_id = request.POST['story_id']
    comment_user_id = request.POST['comment_user_id']
    reply_id = request.POST.get('reply_id')
    format = request.POST.get('format', 'json')
    original_message = None
    
    shared_story = MSharedStory.objects.get(user_id=comment_user_id, 
                                            story_feed_id=feed_id, 
                                            story_guid=story_id)
    replies = []
    for story_reply in shared_story.replies:
        if ((story_reply.user_id == request.user.pk or request.user.is_staff) and 
            story_reply.reply_id == ObjectId(reply_id)):
            original_message = story_reply.comments
            # Skip reply
        else:
            replies.append(story_reply)
    shared_story.replies = replies
    shared_story.save()

    logging.user(request, "~FCRemoving comment reply in ~FM%s: ~SB~FB%s~FM" % (
             shared_story.story_title[:20], original_message and original_message[:30]))
    
    comment, profiles = shared_story.comment_with_author_and_profiles()

    # Interaction for every other replier and original commenter
    MActivity.remove_comment_reply(user_id=request.user.pk,
                                   comment_user_id=comment['user_id'],
                                   reply_content=original_message,
                                   story_id=story_id,
                                   story_feed_id=feed_id)
    MInteraction.remove_comment_reply(user_id=comment['user_id'], 
                                      reply_user_id=request.user.pk, 
                                      reply_content=original_message,
                                      story_id=story_id,
                                      story_feed_id=feed_id)
    
    reply_user_ids = [reply['user_id'] for reply in comment['replies']]
    for user_id in set(reply_user_ids).difference([comment['user_id']]):
        if request.user.pk != user_id:
            MInteraction.remove_reply_reply(user_id=user_id, 
                                            comment_user_id=comment['user_id'],
                                            reply_user_id=request.user.pk, 
                                            reply_content=original_message,
                                            story_id=story_id,
                                            story_feed_id=feed_id)
    
    if format == 'html':
        comment = MSharedStory.attach_users_to_comment(comment, profiles)
        return render(request, 'social/story_comment.xhtml', {
            'comment': comment,
        })
    else:
        return json.json_response(request, {
            'code': code, 
            'comment': comment, 
            'user_profiles': profiles
        })
        
@render_to('social/mute_story.xhtml')
def mute_story(request, secret_token, shared_story_id):
    user_profile = Profile.objects.get(secret_token=secret_token)
    shared_story = MSharedStory.objects.get(id=shared_story_id)
    shared_story.mute_for_user(user_profile.user_id)
    
    return {}
    
def shared_stories_public(request, username):
    try:
        user = User.objects.get(username=username)
    except User.DoesNotExist:
        raise Http404

    shared_stories = MSharedStory.objects.filter(user_id=user.pk)
        
    return HttpResponse("There are %s stories shared by %s." % (shared_stories.count(), username))
    
@json.json_view
def profile(request):
    user = get_user(request.user)
    user_id = int(request.GET.get('user_id', user.pk))
    categories = request.GET.getlist('category') or request.GET.getlist('category[]')
    include_activities_html = request.GET.get('include_activities_html', None)

    user_profile = MSocialProfile.get_user(user_id)
    user_profile.count_follows()
    
    activities = []
    if not user_profile.private or user_profile.is_followed_by_user(user.pk):
        activities, _ = MActivity.user(user_id, page=1, public=True, categories=categories)

    user_profile = user_profile.canonical(include_follows=True, common_follows_with_user=user.pk)
    profile_ids = set(user_profile['followers_youknow'] + user_profile['followers_everybody'] + 
                      user_profile['following_youknow'] + user_profile['following_everybody'])
    profiles = MSocialProfile.profiles(profile_ids)

    logging.user(request, "~BB~FRLoading social profile: %s" % user_profile['username'])
        
    payload = {
        'user_profile': user_profile,
        'followers_youknow': user_profile['followers_youknow'],
        'followers_everybody': user_profile['followers_everybody'],
        'following_youknow': user_profile['following_youknow'],
        'following_everybody': user_profile['following_everybody'],
        'requested_follow': user_profile['requested_follow'],
        'profiles': dict([(p.user_id, p.canonical(compact=True)) for p in profiles]),
        'activities': activities,
    }

    if include_activities_html:
        payload['activities_html'] = render_to_string('reader/activities_module.xhtml', {
            'activities': activities,
            'username': user_profile['username'],
            'public': True,
        })
    
    return payload

@ajax_login_required
@json.json_view
def load_user_profile(request):
    social_profile = MSocialProfile.get_user(request.user.pk)
    try:
        social_services = MSocialServices.objects.get(user_id=request.user.pk)
    except MSocialServices.DoesNotExist:
        social_services = MSocialServices.objects.create(user_id=request.user.pk)
    
    logging.user(request, "~BB~FRLoading social profile and blurblog settings")
    
    return {
        'services': social_services,
        'user_profile': social_profile.canonical(include_follows=True, include_settings=True),
    }
    
@ajax_login_required
@json.json_view
def save_user_profile(request):
    data = request.POST
    website = data['website']
    
    if website and not website.startswith('http'):
        website = 'http://' + website
    
    profile = MSocialProfile.get_user(request.user.pk)
    profile.location = data['location']
    profile.bio = data['bio']
    profile.website = website
    profile.protected = is_true(data.get('protected', False))
    profile.private = is_true(data.get('private', False))
    profile.save()

    social_services = MSocialServices.get_user(user_id=request.user.pk)
    profile = social_services.set_photo(data['photo_service'])
    
    logging.user(request, "~BB~FRSaving social profile")
    
    return dict(code=1, user_profile=profile.canonical(include_follows=True))


@ajax_login_required
@json.json_view
def upload_avatar(request):
    photo = request.FILES['photo']
    profile = MSocialProfile.get_user(request.user.pk)
    social_services = MSocialServices.objects.get(user_id=request.user.pk)

    logging.user(request, "~FC~BM~SBUploading photo...")

    image_url = social_services.save_uploaded_photo(photo)
    if image_url:
        profile = social_services.set_photo('upload')

    return {
        "code": 1 if image_url else -1,
        "uploaded": image_url,
        "services": social_services,
        "user_profile": profile.canonical(include_follows=True),
    }

@ajax_login_required
@json.json_view
def save_blurblog_settings(request):
    data = request.POST

    profile = MSocialProfile.get_user(request.user.pk)
    profile.custom_css = strip_tags(data.get('custom_css', None))
    profile.custom_bgcolor = strip_tags(data.get('custom_bgcolor', None))
    profile.blurblog_title = strip_tags(data.get('blurblog_title', None))
    profile.bb_permalink_direct = is_true(data.get('bb_permalink_direct', False))
    profile.save()

    logging.user(request, "~BB~FRSaving blurblog settings")
    
    return dict(code=1, user_profile=profile.canonical(include_follows=True, include_settings=True))

@json.json_view
def load_follow_requests(request):
    user = get_user(request.user)
    follow_request_users = MFollowRequest.objects.filter(followee_user_id=user.pk)
    follow_request_user_ids = [f.follower_user_id for f in follow_request_users]
    request_profiles = MSocialProfile.profiles(follow_request_user_ids)
    request_profiles = [p.canonical(include_following_user=user.pk) for p in request_profiles]

    if len(request_profiles):
        logging.user(request, "~BB~FRLoading Follow Requests (%s requests)" % (
            len(request_profiles),
        ))

    return {
        'request_profiles': request_profiles,
    }

@ratelimit(minutes=1, requests=100)
@json.json_view
def load_user_friends(request):
    user = get_user(request.user)
    social_profile     = MSocialProfile.get_user(user_id=user.pk)
    social_services    = MSocialServices.get_user(user_id=user.pk)
    following_profiles = MSocialProfile.profiles(social_profile.following_user_ids)
    follower_profiles  = MSocialProfile.profiles(social_profile.follower_user_ids)
    recommended_users  = social_profile.recommended_users()
    following_profiles = [p.canonical(include_following_user=user.pk) for p in following_profiles]
    follower_profiles  = [p.canonical(include_following_user=user.pk) for p in follower_profiles]
    
    logging.user(request, "~BB~FRLoading Friends (%s following, %s followers)" % (
        social_profile.following_count,
        social_profile.follower_count,
    ))

    return {
        'services': social_services,
        'autofollow': social_services.autofollow,
        'user_profile': social_profile.canonical(include_follows=True),
        'following_profiles': following_profiles,
        'follower_profiles': follower_profiles,
        'recommended_users': recommended_users,
    }

@ajax_login_required
@json.json_view
def follow(request):
    profile = MSocialProfile.get_user(request.user.pk)
    user_id = request.POST['user_id']
    try:
        follow_user_id = int(user_id)
    except ValueError:
        try:
            follow_user_id = int(user_id.replace('social:', ''))
            follow_profile = MSocialProfile.get_user(follow_user_id)
        except (ValueError, MSocialProfile.DoesNotExist):
            follow_username = user_id.replace('social:', '')
            try:
                follow_profile = MSocialProfile.objects.get(username=follow_username)
            except MSocialProfile.DoesNotExist:
                raise Http404
            follow_user_id = follow_profile.user_id

    profile.follow_user(follow_user_id)
    follow_profile = MSocialProfile.get_user(follow_user_id)
    
    social_params = {
        'user_id': request.user.pk,
        'subscription_user_id': follow_user_id,
        'include_favicon': True,
        'update_counts': True,
    }
    follow_subscription = MSocialSubscription.feeds(calculate_all_scores=True, **social_params)
    
    if follow_profile.protected:
        logging.user(request, "~BB~FR~SBRequested~SN follow from: ~SB%s" % follow_profile.username)
    else:
        logging.user(request, "~BB~FRFollowing: ~SB%s" % follow_profile.username)
    
    return {
        "user_profile": profile.canonical(include_follows=True), 
        "follow_profile": follow_profile.canonical(common_follows_with_user=request.user.pk),
        "follow_subscription": follow_subscription,
    }
    
@ajax_login_required
@json.json_view
def unfollow(request):
    profile = MSocialProfile.get_user(request.user.pk)
    user_id = request.POST['user_id']
    try:
        unfollow_user_id = int(user_id)
    except ValueError:
        try:
            unfollow_user_id = int(user_id.replace('social:', ''))
            unfollow_profile = MSocialProfile.get_user(unfollow_user_id)
        except (ValueError, MSocialProfile.DoesNotExist):
            unfollow_username = user_id.replace('social:', '')
            try:
                unfollow_profile = MSocialProfile.objects.get(username=unfollow_username)
            except MSocialProfile.DoesNotExist:
                raise Http404
            unfollow_user_id = unfollow_profile.user_id
        
    profile.unfollow_user(unfollow_user_id)
    unfollow_profile = MSocialProfile.get_user(unfollow_user_id)
    
    logging.user(request, "~BB~FRUnfollowing: ~SB%s" % unfollow_profile.username)
    
    return {
        'user_profile': profile.canonical(include_follows=True),
        'unfollow_profile': unfollow_profile.canonical(common_follows_with_user=request.user.pk),
    }


@ajax_login_required
@json.json_view
def approve_follower(request):
    profile = MSocialProfile.get_user(request.user.pk)
    user_id = int(request.POST['user_id'])
    follower_profile = MSocialProfile.get_user(user_id)
    code = -1
    
    logging.user(request, "~BB~FRApproving follow: ~SB%s" % follower_profile.username)
    
    if user_id in profile.requested_follow_user_ids:
        follower_profile.follow_user(request.user.pk, force=True)
        code = 1
        
    return {'code': code}

@ajax_login_required
@json.json_view
def ignore_follower(request):
    profile = MSocialProfile.get_user(request.user.pk)
    user_id = int(request.POST['user_id'])
    follower_profile = MSocialProfile.get_user(user_id)
    code = -1
    
    logging.user(request, "~BB~FR~SK~SBNOT~SN approving follow: ~SB%s" % follower_profile.username)
    
    if user_id in profile.requested_follow_user_ids:
        follower_profile.unfollow_user(request.user.pk)
        code = 1
        
    return {'code': code}


@required_params('query')
@json.json_view
def find_friends(request):
    query = request.GET['query']
    limit = int(request.GET.get('limit', 3))
    profiles = []
    
    if '@' in query:
        results = re.search(r'[\w\.-]+@[\w\.-]+', query)
        if results:
            email = results.group(0)
            profiles = MSocialProfile.objects.filter(email__iexact=email)[:limit]
    if query.isdigit() and request.user.is_staff:
        profiles = MSocialProfile.objects.filter(user_id=int(query))[:limit]
    if not profiles:
        profiles = MSocialProfile.objects.filter(username__iexact=query)[:limit]
    if not profiles:
        profiles = MSocialProfile.objects.filter(username__icontains=query)[:limit]
    if not profiles and request.user.is_staff:
        profiles = MSocialProfile.objects.filter(email__icontains=query)[:limit]
    if not profiles:
        profiles = MSocialProfile.objects.filter(blurblog_title__icontains=query)[:limit]
    if not profiles:
        profiles = MSocialProfile.objects.filter(location__icontains=query)[:limit]
    
    profiles = [p.canonical(include_following_user=request.user.pk) for p in profiles]
    profiles = sorted(profiles, key=lambda p: -1 * p['shared_stories_count'])

    return dict(profiles=profiles)

@ajax_login_required
def like_comment(request):
    code     = 1
    feed_id  = int(request.POST['story_feed_id'])
    story_id = request.POST['story_id']
    comment_user_id = int(request.POST['comment_user_id'])
    format = request.POST.get('format', 'json')
    
    if comment_user_id == request.user.pk:
        return json.json_response(request, {'code': -1, 'message': 'You cannot favorite your own shared story comment.'})

    try:
        shared_story = MSharedStory.objects.get(user_id=comment_user_id, 
                                                story_feed_id=feed_id, 
                                                story_guid=story_id)
    except MSharedStory.DoesNotExist:
        return json.json_response(request, {'code': -1, 'message': 'The shared comment cannot be found.'})
        
    shared_story.add_liking_user(request.user.pk)
    comment, profiles = shared_story.comment_with_author_and_profiles()

    comment_user = User.objects.get(pk=shared_story.user_id)
    logging.user(request, "~BB~FMLiking comment by ~SB%s~SN: %s" % (
        comment_user.username, 
        shared_story.comments[:30],
    ))

    MActivity.new_comment_like(liking_user_id=request.user.pk,
                               comment_user_id=comment['user_id'],
                               story_id=story_id,
                               story_feed_id=feed_id,
                               story_title=shared_story.story_title,
                               comments=shared_story.comments)
    MInteraction.new_comment_like(liking_user_id=request.user.pk, 
                                  comment_user_id=comment['user_id'],
                                  story_id=story_id,
                                  story_feed_id=feed_id,
                                  story_title=shared_story.story_title,
                                  comments=shared_story.comments)
                                       
    if format == 'html':
        comment = MSharedStory.attach_users_to_comment(comment, profiles)
        return render(request, 'social/story_comment.xhtml', {
            'comment': comment,
        })
    else:
        return json.json_response(request, {
            'code': code, 
            'comment': comment, 
            'user_profiles': profiles,
        })
        
@ajax_login_required
def remove_like_comment(request):
    code     = 1
    feed_id  = int(request.POST['story_feed_id'])
    story_id = request.POST['story_id']
    comment_user_id = request.POST['comment_user_id']
    format = request.POST.get('format', 'json')
    
    shared_story = MSharedStory.objects.get(user_id=comment_user_id, 
                                            story_feed_id=feed_id, 
                                            story_guid=story_id)
    shared_story.remove_liking_user(request.user.pk)
    comment, profiles = shared_story.comment_with_author_and_profiles()
    comment_user = User.objects.get(pk=shared_story.user_id)
    logging.user(request, "~BB~FMRemoving like on comment by ~SB%s~SN: %s" % (
        comment_user.username, 
        shared_story.comments[:30],
    ))
    
    if format == 'html':
        comment = MSharedStory.attach_users_to_comment(comment, profiles)
        return render(request, 'social/story_comment.xhtml', {
            'comment': comment,
        })
    else:
        return json.json_response(request, {
            'code': code, 
            'comment': comment, 
            'user_profiles': profiles,
        })
def get_subdomain(request):
    host = request.META.get('HTTP_HOST')
    if host.count(".") == 2:
        return host.split(".")[0]
    else:
        return None

def shared_stories_rss_feed_noid(request):
    index = HttpResponseRedirect('http://%s%s' % (
                                 Site.objects.get_current().domain,
                                 reverse('index')))
    if get_subdomain(request):
        username = get_subdomain(request)
        try:
            if '.' in username:
                username = username.split('.')[0]
            user = User.objects.get(username__iexact=username)
        except User.DoesNotExist:
            return index
        return shared_stories_rss_feed(request, user_id=user.pk, username=request.subdomain)

    return index

@ratelimit(minutes=1, requests=5)
def shared_stories_rss_feed(request, user_id, username):
    try:
        user = User.objects.get(pk=user_id)
    except User.DoesNotExist:
        raise Http404
    
    username = username and username.lower()
    profile = MSocialProfile.get_user(user.pk)
    params = {'username': profile.username_slug, 'user_id': user.pk}
    if not username or profile.username_slug.lower() != username:
        return HttpResponseRedirect(reverse('shared-stories-rss-feed', kwargs=params))

    social_profile = MSocialProfile.get_user(user_id)
    current_site = Site.objects.get_current()
    current_site = current_site and current_site.domain
    
    if social_profile.private:
        return HttpResponseForbidden()
    
    data = {}
    data['title'] = social_profile.title
    data['link'] = social_profile.blurblog_url
    data['description'] = "Stories shared by %s on NewsBlur." % user.username
    data['lastBuildDate'] = datetime.datetime.utcnow()
    data['generator'] = 'NewsBlur - %s' % settings.NEWSBLUR_URL
    data['docs'] = None
    data['author_name'] = user.username
    data['feed_url'] = "http://%s%s" % (
        current_site,
        reverse('shared-stories-rss-feed', kwargs=params),
    )
    rss = feedgenerator.Atom1Feed(**data)

    shared_stories = MSharedStory.objects.filter(user_id=user.pk).order_by('-shared_date')[:25]
    for shared_story in shared_stories:
        feed = Feed.get_by_id(shared_story.story_feed_id)
        content = render_to_string('social/rss_story.xhtml', {
            'feed': feed,
            'user': user,
            'social_profile': social_profile,
            'shared_story': shared_story,
            'content': (shared_story.story_content_z and
                        zlib.decompress(shared_story.story_content_z))
        })
        story_data = {
            'title': shared_story.story_title,
            'link': shared_story.story_permalink,
            'description': content,
            'author_name': shared_story.story_author_name,
            'categories': shared_story.story_tags,
            'unique_id': shared_story.story_permalink,
            'pubdate': shared_story.shared_date,
        }
        rss.add_item(**story_data)
        
    logging.user(request, "~FBGenerating ~SB%s~SN's RSS feed: ~FM%s" % (
        user.username,
        request.META.get('HTTP_USER_AGENT', "")[:24]
    ))
    return HttpResponse(rss.writeString('utf-8'), content_type='application/rss+xml')

@required_params('user_id')
@json.json_view
def social_feed_trainer(request):
    social_user_id = request.GET['user_id']
    social_profile = MSocialProfile.get_user(social_user_id)
    social_user = get_object_or_404(User, pk=social_user_id)
    user = get_user(request)
    
    social_profile.count_stories()
    classifier = social_profile.canonical()
    classifier['classifiers'] = get_classifiers_for_user(user, social_user_id=classifier['id'])
    classifier['num_subscribers'] = social_profile.follower_count
    classifier['feed_tags'] = []
    classifier['feed_authors'] = []
    
    logging.user(user, "~FGLoading social trainer on ~SB%s: %s" % (
                 social_user.username, social_profile.title))
    
    return [classifier]
    

@json.json_view
def load_social_statistics(request, social_user_id, username=None):
    stats = dict()
    social_profile = MSocialProfile.get_user(social_user_id)
    social_profile.save_feed_story_history_statistics()
    social_profile.save_classifier_counts()
    
    # Stories per month - average and month-by-month breakout
    stats['average_stories_per_month'] = social_profile.average_stories_per_month
    stats['story_count_history'] = social_profile.story_count_history
    stats['story_hours_history'] = social_profile.story_hours_history
    stats['story_days_history'] = social_profile.story_days_history
    
    # Subscribers
    stats['subscriber_count'] = social_profile.follower_count
    stats['num_subscribers'] = social_profile.follower_count
    
    # Classifier counts
    stats['classifier_counts'] = social_profile.feed_classifier_counts
    
    # Feeds
    feed_ids = [c['feed_id'] for c in stats['classifier_counts'].get('feed', [])]
    feeds = Feed.objects.filter(pk__in=feed_ids).only('feed_title')
    titles = dict([(f.pk, f.feed_title) for f in feeds])
    for stat in stats['classifier_counts'].get('feed', []):
        stat['feed_title'] = titles.get(stat['feed_id'], "")
    
    logging.user(request, "~FBStatistics social: ~SB%s ~FG(%s subs)" % (
                 social_profile.user_id, social_profile.follower_count))

    return stats

@json.json_view
def load_social_settings(request, social_user_id, username=None):
    social_profile = MSocialProfile.get_user(social_user_id)
    
    return social_profile.canonical()

@ajax_login_required
def load_interactions(request):
    user_id = request.GET.get('user_id', None)
    categories = request.GET.getlist('category') or request.GET.getlist('category[]')
    if not user_id or 'null' in user_id:
        user_id = get_user(request).pk
    page = max(1, int(request.GET.get('page', 1)))
    limit = request.GET.get('limit')
    interactions, has_next_page = MInteraction.user(user_id, page=page, limit=limit,
                                                    categories=categories)
    format = request.GET.get('format', None)
    
    data = {
        'interactions': interactions,
        'page': page,
        'has_next_page': has_next_page
    }
    
    logging.user(request, "~FBLoading interactions ~SBp/%s" % page)
    
    if format == 'html':
        return render(request, 'reader/interactions_module.xhtml', data)
    else:
        return json.json_response(request, data)

@ajax_login_required
def load_activities(request):
    user_id = request.GET.get('user_id', None)
    categories = request.GET.getlist('category') or request.GET.getlist('category[]')
    if user_id and 'null' not in user_id:
        user_id = int(user_id)
        user = User.objects.get(pk=user_id)
    else:
        user = get_user(request)
        user_id = user.pk
        
    public = user_id != request.user.pk
    page = max(1, int(request.GET.get('page', 1)))
    limit = request.GET.get('limit', 4)
    activities, has_next_page = MActivity.user(user_id, page=page, limit=limit, public=public,
                                               categories=categories)
    format = request.GET.get('format', None)
    
    data = {
        'activities': activities,
        'page': page,
        'has_next_page': has_next_page,
        'username': (user.username if public else 'You'),
    }
    
    logging.user(request, "~FBLoading activities ~SBp/%s" % page)
    
    if format == 'html':
        return render(request, 'reader/activities_module.xhtml', data,
                                  )
    else:
        return json.json_response(request, data)

@json.json_view
def comment(request, comment_id):
    try:
        shared_story = MSharedStory.objects.get(id=comment_id)
    except MSharedStory.DoesNotExist:
        raise Http404
    return shared_story.comments_with_author()

@json.json_view
def comment_reply(request, comment_id, reply_id):
    try:
        shared_story = MSharedStory.objects.get(id=comment_id)
    except MSharedStory.DoesNotExist:
        raise Http404
        
    for story_reply in shared_story.replies:
        if story_reply.reply_id == ObjectId(reply_id):
            return story_reply
    return shared_story.comments_with_author()