mediagoblin/user_pages/views.py

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