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