mediagoblin/user_pages/views.py

   1 # GNU MediaGoblin -- federated, autonomous media hosting
   2 # Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU Affero General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU Affero General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU Affero General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 from webob import exc
  18 import logging
  19
  20 from mediagoblin import messages, mg_globals
  21 from mediagoblin.db.util import DESCENDING, ObjectId
  22 from mediagoblin.tools.response import render_to_response, render_404, redirect
  23 from mediagoblin.tools.translate import pass_to_ugettext as _
  24 from mediagoblin.tools.pagination import Pagination
  25 from mediagoblin.tools.files import delete_media_files
  26 from mediagoblin.user_pages import forms as user_forms
  27 from mediagoblin.user_pages.lib import send_comment_email
  28
  29 from mediagoblin.decorators import (uses_pagination, get_user_media_entry,
  30     require_active_login, user_may_delete_media)
  31
  32 from werkzeug.contrib.atom import AtomFeed
  33
  34 from mediagoblin.media_types import get_media_manager
  35
  36
  37 _log = logging.getLogger(__name__)
  38 _log.setLevel(logging.DEBUG)
  39
  40 @uses_pagination
  41 def user_home(request, page):
  42     """'Homepage' of a User()"""
  43     user = request.db.User.find_one({
  44             'username': request.matchdict['user']})
  45     if not user:
  46         return render_404(request)
  47     elif user.status != u'active':
  48         return render_to_response(
  49             request,
  50             'mediagoblin/user_pages/user.html',
  51             {'user': user})
  52
  53     cursor = request.db.MediaEntry.find(
  54         {'uploader': user._id,
  55          'state': 'processed'}).sort('created', DESCENDING)
  56
  57     pagination = Pagination(page, cursor)
  58     media_entries = pagination()
  59
  60     #if no data is available, return NotFound
  61     if media_entries == None:
  62         return render_404(request)
  63
  64     user_gallery_url = request.urlgen(
  65         'mediagoblin.user_pages.user_gallery',
  66         user=user.username)
  67
  68     return render_to_response(
  69         request,
  70         'mediagoblin/user_pages/user.html',
  71         {'user': user,
  72          'user_gallery_url': user_gallery_url,
  73          'media_entries': media_entries,
  74          'pagination': pagination})
  75
  76
  77 @uses_pagination
  78 def user_gallery(request, page):
  79     """'Gallery' of a User()"""
  80     user = request.db.User.find_one({
  81             'username': request.matchdict['user'],
  82             'status': 'active'})
  83     if not user:
  84         return render_404(request)
  85
  86     cursor = request.db.MediaEntry.find(
  87         {'uploader': user._id,
  88          'state': 'processed'}).sort('created', DESCENDING)
  89
  90     pagination = Pagination(page, cursor)
  91     media_entries = pagination()
  92
  93     #if no data is available, return NotFound
  94     if media_entries == None:
  95         return render_404(request)
  96
  97     return render_to_response(
  98         request,
  99         'mediagoblin/user_pages/gallery.html',
 100         {'user': user,
 101          'media_entries': media_entries,
 102          'pagination': pagination})
 103
 104 MEDIA_COMMENTS_PER_PAGE = 50
 105
 106
 107 @get_user_media_entry
 108 @uses_pagination
 109 def media_home(request, media, page, **kwargs):
 110     """
 111     'Homepage' of a MediaEntry()
 112     """
 113     if ObjectId(request.matchdict.get('comment')):
 114         pagination = Pagination(
 115             page, media.get_comments(
 116                 mg_globals.app_config['comments_ascending']),
 117             MEDIA_COMMENTS_PER_PAGE,
 118             ObjectId(request.matchdict.get('comment')))
 119     else:
 120         pagination = Pagination(
 121             page, media.get_comments(
 122                 mg_globals.app_config['comments_ascending']),
 123             MEDIA_COMMENTS_PER_PAGE)
 124
 125     comments = pagination()
 126
 127     comment_form = user_forms.MediaCommentForm(request.POST)
 128
 129     media_template_name = get_media_manager(media.media_type)['display_template']
 130
 131     return render_to_response(
 132         request,
 133         media_template_name,
 134         {'media': media,
 135          'comments': comments,
 136          'pagination': pagination,
 137          'comment_form': comment_form,
 138          'app_config': mg_globals.app_config})
 139
 140
 141 @get_user_media_entry
 142 @require_active_login
 143 def media_post_comment(request, media):
 144     """
 145     recieves POST from a MediaEntry() comment form, saves the comment.
 146     """
 147     assert request.method == 'POST'
 148
 149     comment = request.db.MediaComment()
 150     comment.media_entry = media.id
 151     comment.author = request.user.id
 152     comment.content = unicode(request.POST['comment_content'])
 153
 154     if not comment.content.strip():
 155         messages.add_message(
 156             request,
 157             messages.ERROR,
 158             _("Oops, your comment was empty."))
 159     else:
 160         comment.save()
 161
 162         messages.add_message(
 163             request, messages.SUCCESS,
 164             _('Your comment has been posted!'))
 165
 166         media_uploader = media.get_uploader
 167         #don't send email if you comment on your own post
 168         if (comment.author != media_uploader and
 169             media_uploader.wants_comment_notification):
 170             send_comment_email(media_uploader, comment, media, request)
 171
 172     return exc.HTTPFound(
 173         location=media.url_for_self(request.urlgen))
 174
 175
 176 @get_user_media_entry
 177 @require_active_login
 178 @user_may_delete_media
 179 def media_confirm_delete(request, media):
 180
 181     form = user_forms.ConfirmDeleteForm(request.POST)
 182
 183     if request.method == 'POST' and form.validate():
 184         if form.confirm.data is True:
 185             username = media.get_uploader.username
 186
 187             # Delete all the associated comments
 188             for comment in media.get_comments():
 189                 comment.delete()
 190
 191             # Delete all files on the public storage
 192             try:
 193                 delete_media_files(media)
 194             except OSError, error:
 195                 _log.error('No such files from the user "{1}"'
 196                            ' to delete: {0}'.format(str(error), username))
 197                 messages.add_message(request, messages.ERROR,
 198                                      _('Some of the files with this entry seem'
 199                                        ' to be missing.  Deleting anyway.'))
 200
 201             media.delete()
 202             messages.add_message(
 203                 request, messages.SUCCESS, _('You deleted the media.'))
 204
 205             return redirect(request, "mediagoblin.user_pages.user_home",
 206                 user=username)
 207         else:
 208             messages.add_message(
 209                 request, messages.ERROR,
 210                 _("The media was not deleted because you didn't check that you were sure."))
 211             return exc.HTTPFound(
 212                 location=media.url_for_self(request.urlgen))
 213
 214     if ((request.user.is_admin and
 215          request.user._id != media.uploader)):
 216         messages.add_message(
 217             request, messages.WARNING,
 218             _("You are about to delete another user's media. "
 219               "Proceed with caution."))
 220
 221     return render_to_response(
 222         request,
 223         'mediagoblin/user_pages/media_confirm_delete.html',
 224         {'media': media,
 225          'form': form})
 226
 227
 228 ATOM_DEFAULT_NR_OF_UPDATED_ITEMS = 15
 229
 230
 231 def atom_feed(request):
 232     """
 233     generates the atom feed with the newest images
 234     """
 235
 236     user = request.db.User.find_one({
 237                'username': request.matchdict['user'],
 238                'status': 'active'})
 239     if not user:
 240         return render_404(request)
 241
 242     cursor = request.db.MediaEntry.find({
 243                  'uploader': user._id,
 244                  'state': 'processed'}) \
 245                  .sort('created', DESCENDING) \
 246                  .limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
 247
 248     """
 249     ATOM feed id is a tag URI (see http://en.wikipedia.org/wiki/Tag_URI)
 250     """
 251     atomlinks = [{
 252            'href': request.urlgen(
 253                'mediagoblin.user_pages.user_home',
 254                qualified=True,user=request.matchdict['user']),
 255            'rel': 'alternate',
 256            'type': 'text/html'
 257            }];
 258     if mg_globals.app_config["push_urls"]:
 259         for push_url in mg_globals.app_config["push_urls"]:
 260             atomlinks.append({
 261                 'rel': 'hub',
 262                 'href': push_url})
 263
 264     feed = AtomFeed(
 265                "MediaGoblin: Feed for user '%s'" % request.matchdict['user'],
 266                feed_url=request.url,
 267                id='tag:'+request.host+',2011:gallery.user-'+request.matchdict['user'],
 268                links=atomlinks)
 269
 270
 271     for entry in cursor:
 272         feed.add(entry.get('title'),
 273             entry.description_html,
 274             id=entry.url_for_self(request.urlgen,qualified=True),
 275             content_type='html',
 276             author={
 277                 'name': entry.get_uploader.username,
 278                 'uri': request.urlgen(
 279                     'mediagoblin.user_pages.user_home',
 280                     qualified=True, user=entry.get_uploader.username)},
 281             updated=entry.get('created'),
 282             links=[{
 283                 'href': entry.url_for_self(
 284                     request.urlgen,
 285                     qualified=True),
 286                 'rel': 'alternate',
 287                 'type': 'text/html'}])
 288
 289     return feed.get_response()
 290
 291
 292 @require_active_login
 293 def processing_panel(request):
 294     """
 295     Show to the user what media is still in conversion/processing...
 296     and what failed, and why!
 297     """
 298     # Get the user
 299     user = request.db.User.find_one(
 300         {'username': request.matchdict['user'],
 301          'status': 'active'})
 302
 303     # Make sure the user exists and is active
 304     if not user:
 305         return render_404(request)
 306     elif user.status != u'active':
 307         return render_to_response(
 308             request,
 309             'mediagoblin/user_pages/user.html',
 310             {'user': user})
 311
 312     # XXX: Should this be a decorator?
 313     #
 314     # Make sure we have permission to access this user's panel.  Only
 315     # admins and this user herself should be able to do so.
 316     if not (user._id == request.user._id
 317             or request.user.is_admin):
 318         # No?  Let's simply redirect to this user's homepage then.
 319         return redirect(
 320             request, 'mediagoblin.user_pages.user_home',
 321             user=request.matchdict['user'])
 322
 323     # Get media entries which are in-processing
 324     processing_entries = request.db.MediaEntry.find(
 325         {'uploader': user._id,
 326          'state': 'unprocessed'}).sort('created', DESCENDING)
 327
 328     # Get media entries which have failed to process
 329     failed_entries = request.db.MediaEntry.find(
 330         {'uploader': user._id,
 331          'state': 'failed'}).sort('created', DESCENDING)
 332
 333     # Render to response
 334     return render_to_response(
 335         request,
 336         'mediagoblin/user_pages/processing_panel.html',
 337         {'user': user,
 338          'processing_entries': processing_entries,
 339          'failed_entries': failed_entries})