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 import datetime
  20
  21 from mediagoblin import messages, mg_globals
  22 from mediagoblin.db.util import DESCENDING, ObjectId
  23 from mediagoblin.tools.response import render_to_response, render_404, redirect
  24 from mediagoblin.tools.translate import pass_to_ugettext as _
  25 from mediagoblin.tools.pagination import Pagination
  26 from mediagoblin.tools.files import delete_media_files
  27 from mediagoblin.user_pages import forms as user_forms
  28 from mediagoblin.user_pages.lib import send_comment_email
  29
  30 from mediagoblin.decorators import (uses_pagination, get_user_media_entry,
  31     require_active_login, user_may_delete_media)
  32
  33 from werkzeug.contrib.atom import AtomFeed
  34
  35 from mediagoblin.media_types import get_media_manager
  36
  37
  38 _log = logging.getLogger(__name__)
  39 _log.setLevel(logging.DEBUG)
  40
  41
  42 @uses_pagination
  43 def user_home(request, page):
  44     """'Homepage' of a User()"""
  45     user = request.db.User.find_one({
  46             'username': request.matchdict['user']})
  47     if not user:
  48         return render_404(request)
  49     elif user.status != u'active':
  50         return render_to_response(
  51             request,
  52             'mediagoblin/user_pages/user.html',
  53             {'user': user})
  54
  55     cursor = request.db.MediaEntry.find(
  56         {'uploader': user._id,
  57          'state': u'processed'}).sort('created', DESCENDING)
  58
  59     pagination = Pagination(page, cursor)
  60     media_entries = pagination()
  61
  62     #if no data is available, return NotFound
  63     if media_entries == None:
  64         return render_404(request)
  65
  66     user_gallery_url = request.urlgen(
  67         'mediagoblin.user_pages.user_gallery',
  68         user=user.username)
  69
  70     return render_to_response(
  71         request,
  72         'mediagoblin/user_pages/user.html',
  73         {'user': user,
  74          'user_gallery_url': user_gallery_url,
  75          'media_entries': media_entries,
  76          'pagination': pagination})
  77
  78
  79 @uses_pagination
  80 def user_gallery(request, page):
  81     """'Gallery' of a User()"""
  82     user = request.db.User.find_one({
  83             'username': request.matchdict['user'],
  84             'status': u'active'})
  85     if not user:
  86         return render_404(request)
  87
  88     cursor = request.db.MediaEntry.find(
  89         {'uploader': user._id,
  90          'state': u'processed'}).sort('created', DESCENDING)
  91
  92     pagination = Pagination(page, cursor)
  93     media_entries = pagination()
  94
  95     #if no data is available, return NotFound
  96     if media_entries == None:
  97         return render_404(request)
  98
  99     return render_to_response(
 100         request,
 101         'mediagoblin/user_pages/gallery.html',
 102         {'user': user,
 103          'media_entries': media_entries,
 104          'pagination': pagination})
 105
 106 MEDIA_COMMENTS_PER_PAGE = 50
 107
 108
 109 @get_user_media_entry
 110 @uses_pagination
 111 def media_home(request, media, page, **kwargs):
 112     """
 113     'Homepage' of a MediaEntry()
 114     """
 115     if ObjectId(request.matchdict.get('comment')):
 116         pagination = Pagination(
 117             page, media.get_comments(
 118                 mg_globals.app_config['comments_ascending']),
 119             MEDIA_COMMENTS_PER_PAGE,
 120             ObjectId(request.matchdict.get('comment')))
 121     else:
 122         pagination = Pagination(
 123             page, media.get_comments(
 124                 mg_globals.app_config['comments_ascending']),
 125             MEDIA_COMMENTS_PER_PAGE)
 126
 127     comments = pagination()
 128
 129     comment_form = user_forms.MediaCommentForm(request.POST)
 130
 131     media_template_name = get_media_manager(media.media_type)['display_template']
 132
 133     return render_to_response(
 134         request,
 135         media_template_name,
 136         {'media': media,
 137          'comments': comments,
 138          'pagination': pagination,
 139          'comment_form': comment_form,
 140          'app_config': mg_globals.app_config})
 141
 142
 143 @get_user_media_entry
 144 @require_active_login
 145 def media_post_comment(request, media):
 146     """
 147     recieves POST from a MediaEntry() comment form, saves the comment.
 148     """
 149     assert request.method == 'POST'
 150
 151     comment = request.db.MediaComment()
 152     comment.media_entry = media.id
 153     comment.author = request.user.id
 154     comment.content = unicode(request.POST['comment_content'])
 155
 156     if not comment.content.strip():
 157         messages.add_message(
 158             request,
 159             messages.ERROR,
 160             _("Oops, your comment was empty."))
 161     else:
 162         comment.save()
 163
 164         messages.add_message(
 165             request, messages.SUCCESS,
 166             _('Your comment has been posted!'))
 167
 168         media_uploader = media.get_uploader
 169         #don't send email if you comment on your own post
 170         if (comment.author != media_uploader and
 171             media_uploader.wants_comment_notification):
 172             send_comment_email(media_uploader, comment, media, request)
 173
 174     return exc.HTTPFound(
 175         location=media.url_for_self(request.urlgen))
 176
 177
 178 @get_user_media_entry
 179 @require_active_login
 180 @user_may_delete_media
 181 def media_confirm_delete(request, media):
 182
 183     form = user_forms.ConfirmDeleteForm(request.POST)
 184
 185     if request.method == 'POST' and form.validate():
 186         if form.confirm.data is True:
 187             username = media.get_uploader.username
 188
 189             # Delete all the associated comments
 190             for comment in media.get_comments():
 191                 comment.delete()
 192
 193             # Delete all files on the public storage
 194             try:
 195                 delete_media_files(media)
 196             except OSError, error:
 197                 _log.error('No such files from the user "{1}"'
 198                            ' to delete: {0}'.format(str(error), username))
 199                 messages.add_message(request, messages.ERROR,
 200                                      _('Some of the files with this entry seem'
 201                                        ' to be missing.  Deleting anyway.'))
 202
 203             media.delete()
 204             messages.add_message(
 205                 request, messages.SUCCESS, _('You deleted the media.'))
 206
 207             return redirect(request, "mediagoblin.user_pages.user_home",
 208                 user=username)
 209         else:
 210             messages.add_message(
 211                 request, messages.ERROR,
 212                 _("The media was not deleted because you didn't check that you were sure."))
 213             return exc.HTTPFound(
 214                 location=media.url_for_self(request.urlgen))
 215
 216     if ((request.user.is_admin and
 217          request.user._id != media.uploader)):
 218         messages.add_message(
 219             request, messages.WARNING,
 220             _("You are about to delete another user's media. "
 221               "Proceed with caution."))
 222
 223     return render_to_response(
 224         request,
 225         'mediagoblin/user_pages/media_confirm_delete.html',
 226         {'media': media,
 227          'form': form})
 228
 229
 230 ATOM_DEFAULT_NR_OF_UPDATED_ITEMS = 15
 231
 232
 233 def atom_feed(request):
 234     """
 235     generates the atom feed with the newest images
 236     """
 237
 238     user = request.db.User.find_one({
 239                'username': request.matchdict['user'],
 240                'status': u'active'})
 241     if not user:
 242         return render_404(request)
 243
 244     cursor = request.db.MediaEntry.find({
 245                  'uploader': user._id,
 246                  'state': u'processed'}) \
 247                  .sort('created', DESCENDING) \
 248                  .limit(ATOM_DEFAULT_NR_OF_UPDATED_ITEMS)
 249
 250     """
 251     ATOM feed id is a tag URI (see http://en.wikipedia.org/wiki/Tag_URI)
 252     """
 253     atomlinks = [{
 254            'href': request.urlgen(
 255                'mediagoblin.user_pages.user_home',
 256                qualified=True, user=request.matchdict['user']),
 257            'rel': 'alternate',
 258            'type': 'text/html'
 259            }]
 260
 261     if mg_globals.app_config["push_urls"]:
 262         for push_url in mg_globals.app_config["push_urls"]:
 263             atomlinks.append({
 264                 'rel': 'hub',
 265                 'href': push_url})
 266
 267     feed = AtomFeed(
 268                "MediaGoblin: Feed for user '%s'" % request.matchdict['user'],
 269                feed_url=request.url,
 270                id='tag:{host},{year}:gallery.user-{user}'.format(
 271                    host=request.host,
 272                    year=datetime.datetime.today().strftime('%Y'),
 273                    user=request.matchdict['user']),
 274                links=atomlinks)
 275
 276     for entry in cursor:
 277         feed.add(entry.get('title'),
 278             entry.description_html,
 279             id=entry.url_for_self(request.urlgen, qualified=True),
 280             content_type='html',
 281             author={
 282                 'name': entry.get_uploader.username,
 283                 'uri': request.urlgen(
 284                     'mediagoblin.user_pages.user_home',
 285                     qualified=True, user=entry.get_uploader.username)},
 286             updated=entry.get('created'),
 287             links=[{
 288                 'href': entry.url_for_self(
 289                     request.urlgen,
 290                     qualified=True),
 291                 'rel': 'alternate',
 292                 'type': 'text/html'}])
 293
 294     return feed.get_response()
 295
 296
 297 @require_active_login
 298 def processing_panel(request):
 299     """
 300     Show to the user what media is still in conversion/processing...
 301     and what failed, and why!
 302     """
 303     # Get the user
 304     user = request.db.User.find_one(
 305         {'username': request.matchdict['user'],
 306          'status': u'active'})
 307
 308     # Make sure the user exists and is active
 309     if not user:
 310         return render_404(request)
 311     elif user.status != u'active':
 312         return render_to_response(
 313             request,
 314             'mediagoblin/user_pages/user.html',
 315             {'user': user})
 316
 317     # XXX: Should this be a decorator?
 318     #
 319     # Make sure we have permission to access this user's panel.  Only
 320     # admins and this user herself should be able to do so.
 321     if not (user._id == request.user._id
 322             or request.user.is_admin):
 323         # No?  Let's simply redirect to this user's homepage then.
 324         return redirect(
 325             request, 'mediagoblin.user_pages.user_home',
 326             user=request.matchdict['user'])
 327
 328     # Get media entries which are in-processing
 329     processing_entries = request.db.MediaEntry.find(
 330         {'uploader': user._id,
 331          'state': u'processing'}).sort('created', DESCENDING)
 332
 333     # Get media entries which have failed to process
 334     failed_entries = request.db.MediaEntry.find(
 335         {'uploader': user._id,
 336          'state': u'failed'}).sort('created', DESCENDING)
 337
 338     processed_entries = request.db.MediaEntry.find(
 339             {'uploader': user._id,
 340                 'state': u'processed'}).sort('created', DESCENDING).limit(10)
 341
 342     # Render to response
 343     return render_to_response(
 344         request,
 345         'mediagoblin/user_pages/processing_panel.html',
 346         {'user': user,
 347          'processing_entries': processing_entries,
 348          'failed_entries': failed_entries,
 349          'processed_entries': processed_entries})