mediagoblin/edit/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 datetime import datetime
  18
  19 from werkzeug.exceptions import Forbidden
  20 from werkzeug.utils import secure_filename
  21
  22 from mediagoblin import messages
  23 from mediagoblin import mg_globals
  24
  25 from mediagoblin.auth import lib as auth_lib
  26 from mediagoblin.edit import forms
  27 from mediagoblin.edit.lib import may_edit_media
  28 from mediagoblin.decorators import (require_active_login, active_user_from_url,
  29      get_media_entry_by_id,
  30      user_may_alter_collection, get_user_collection)
  31 from mediagoblin.tools.response import render_to_response, redirect
  32 from mediagoblin.tools.translate import pass_to_ugettext as _
  33 from mediagoblin.tools.text import (
  34     convert_to_tag_list_of_dicts, media_tags_as_string)
  35 from mediagoblin.tools.url import slugify
  36 from mediagoblin.db.util import check_media_slug_used, check_collection_slug_used
  37
  38 import mimetypes
  39
  40
  41 @get_media_entry_by_id
  42 @require_active_login
  43 def edit_media(request, media):
  44     if not may_edit_media(request, media):
  45         raise Forbidden("User may not edit this media")
  46
  47     defaults = dict(
  48         title=media.title,
  49         slug=media.slug,
  50         description=media.description,
  51         tags=media_tags_as_string(media.tags),
  52         license=media.license)
  53
  54     form = forms.EditForm(
  55         request.form,
  56         **defaults)
  57
  58     if request.method == 'POST' and form.validate():
  59         # Make sure there isn't already a MediaEntry with such a slug
  60         # and userid.
  61         slug = slugify(request.form['slug'])
  62         slug_used = check_media_slug_used(media.uploader, slug, media.id)
  63
  64         if slug_used:
  65             form.slug.errors.append(
  66                 _(u'An entry with that slug already exists for this user.'))
  67         else:
  68             media.title = request.form['title']
  69             media.description = request.form.get('description')
  70             media.tags = convert_to_tag_list_of_dicts(
  71                                    request.form.get('tags'))
  72
  73             media.license = unicode(request.form.get('license', '')) or None
  74             media.slug = slug
  75             media.save()
  76
  77             return redirect(request,
  78                             location=media.url_for_self(request.urlgen))
  79
  80     if request.user.is_admin \
  81             and media.uploader != request.user.id \
  82             and request.method != 'POST':
  83         messages.add_message(
  84             request, messages.WARNING,
  85             _("You are editing another user's media. Proceed with caution."))
  86
  87     return render_to_response(
  88         request,
  89         'mediagoblin/edit/edit.html',
  90         {'media': media,
  91          'form': form})
  92
  93
  94 # Mimetypes that browsers parse scripts in.
  95 # Content-sniffing isn't taken into consideration.
  96 UNSAFE_MIMETYPES = [
  97         'text/html',
  98         'text/svg+xml']
  99
 100
 101 @get_media_entry_by_id
 102 @require_active_login
 103 def edit_attachments(request, media):
 104     if mg_globals.app_config['allow_attachments']:
 105         form = forms.EditAttachmentsForm()
 106
 107         # Add any attachements
 108         if 'attachment_file' in request.files \
 109             and request.files['attachment_file']:
 110
 111             # Security measure to prevent attachments from being served as
 112             # text/html, which will be parsed by web clients and pose an XSS
 113             # threat.
 114             #
 115             # TODO
 116             # This method isn't flawless as some browsers may perform
 117             # content-sniffing.
 118             # This method isn't flawless as we do the mimetype lookup on the
 119             # machine parsing the upload form, and not necessarily the machine
 120             # serving the attachments.
 121             if mimetypes.guess_type(
 122                     request.files['attachment_file'].filename)[0] in \
 123                     UNSAFE_MIMETYPES:
 124                 public_filename = secure_filename('{0}.notsafe'.format(
 125                     request.files['attachment_file'].filename))
 126             else:
 127                 public_filename = secure_filename(
 128                         request.files['attachment_file'].filename)
 129
 130             attachment_public_filepath \
 131                 = mg_globals.public_store.get_unique_filepath(
 132                 ['media_entries', unicode(media.id), 'attachment',
 133                  public_filename])
 134
 135             attachment_public_file = mg_globals.public_store.get_file(
 136                 attachment_public_filepath, 'wb')
 137
 138             try:
 139                 attachment_public_file.write(
 140                     request.files['attachment_file'].stream.read())
 141             finally:
 142                 request.files['attachment_file'].stream.close()
 143
 144             media.attachment_files.append(dict(
 145                     name=request.form['attachment_name'] \
 146                         or request.files['attachment_file'].filename,
 147                     filepath=attachment_public_filepath,
 148                     created=datetime.utcnow(),
 149                     ))
 150
 151             media.save()
 152
 153             messages.add_message(
 154                 request, messages.SUCCESS,
 155                 _("You added the attachment %s!") \
 156                     % (request.form['attachment_name']
 157                        or request.files['attachment_file'].filename))
 158
 159             return redirect(request,
 160                             location=media.url_for_self(request.urlgen))
 161         return render_to_response(
 162             request,
 163             'mediagoblin/edit/attachments.html',
 164             {'media': media,
 165              'form': form})
 166     else:
 167         raise Forbidden("Attachments are disabled")
 168
 169 @require_active_login
 170 def legacy_edit_profile(request):
 171     """redirect the old /edit/profile/?username=USER to /u/USER/edit/"""
 172     username = request.GET.get('username') or request.user.username
 173     return redirect(request, 'mediagoblin.edit.profile', user=username)
 174
 175
 176 @require_active_login
 177 @active_user_from_url
 178 def edit_profile(request, url_user=None):
 179     # admins may edit any user profile
 180     if request.user.username != url_user.username:
 181         if not request.user.is_admin:
 182             raise Forbidden(_("You can only edit your own profile."))
 183
 184         # No need to warn again if admin just submitted an edited profile
 185         if request.method != 'POST':
 186             messages.add_message(
 187                 request, messages.WARNING,
 188                 _("You are editing a user's profile. Proceed with caution."))
 189
 190     user = url_user
 191
 192     form = forms.EditProfileForm(request.form,
 193         url=user.url,
 194         bio=user.bio)
 195
 196     if request.method == 'POST' and form.validate():
 197         user.url = unicode(request.form['url'])
 198         user.bio = unicode(request.form['bio'])
 199
 200         user.save()
 201
 202         messages.add_message(request,
 203                              messages.SUCCESS,
 204                              _("Profile changes saved"))
 205         return redirect(request,
 206                        'mediagoblin.user_pages.user_home',
 207                         user=user.username)
 208
 209     return render_to_response(
 210         request,
 211         'mediagoblin/edit/edit_profile.html',
 212         {'user': user,
 213          'form': form})
 214
 215
 216 @require_active_login
 217 def edit_account(request):
 218     user = request.user
 219     form = forms.EditAccountForm(request.form,
 220         wants_comment_notification=user.wants_comment_notification,
 221         license_preference=user.license_preference)
 222
 223     if request.method == 'POST':
 224         form_validated = form.validate()
 225
 226         if form_validated and \
 227                 form.wants_comment_notification.validate(form):
 228             user.wants_comment_notification = \
 229                 form.wants_comment_notification.data
 230
 231         if form_validated and \
 232                 form.new_password.data or form.old_password.data:
 233             password_matches = auth_lib.bcrypt_check_password(
 234                 form.old_password.data,
 235                 user.pw_hash)
 236             if password_matches:
 237                 #the entire form validates and the password matches
 238                 user.pw_hash = auth_lib.bcrypt_gen_password_hash(
 239                     form.new_password.data)
 240             else:
 241                 form.old_password.errors.append(_('Wrong password'))
 242
 243         if form_validated and \
 244                 form.license_preference.validate(form):
 245             user.license_preference = \
 246                 form.license_preference.data
 247
 248         if form_validated and not form.errors:
 249             user.save()
 250             messages.add_message(request,
 251                 messages.SUCCESS,
 252                 _("Account settings saved"))
 253             return redirect(request,
 254                 'mediagoblin.user_pages.user_home',
 255                 user=user.username)
 256
 257     return render_to_response(
 258         request,
 259         'mediagoblin/edit/edit_account.html',
 260         {'user': user,
 261          'form': form})
 262
 263
 264 @require_active_login
 265 def delete_account(request):
 266     """Delete a user completely"""
 267     user = request.user
 268     if request.method == 'POST':
 269         if request.form.get(u'confirmed'):
 270             # Form submitted and confirmed. Actually delete the user account
 271             # Log out user and delete cookies etc.
 272             # TODO: Should we be using MG.auth.views.py:logout for this?
 273             request.session.delete()
 274
 275             # Delete user account and all related media files etc....
 276             request.user.delete()
 277
 278             # We should send a message that the user has been deleted
 279             # successfully. But we just deleted the session, so we
 280             # can't...
 281             return redirect(request, 'index')
 282
 283         else: # Did not check the confirmation box...
 284             messages.add_message(
 285                 request, messages.WARNING,
 286                 _('You need to confirm the deletion of your account.'))
 287
 288     # No POST submission or not confirmed, just show page
 289     return render_to_response(
 290         request,
 291         'mediagoblin/edit/delete_account.html',
 292         {'user': user})
 293
 294
 295 @require_active_login
 296 @user_may_alter_collection
 297 @get_user_collection
 298 def edit_collection(request, collection):
 299     defaults = dict(
 300         title=collection.title,
 301         slug=collection.slug,
 302         description=collection.description)
 303
 304     form = forms.EditCollectionForm(
 305         request.form,
 306         **defaults)
 307
 308     if request.method == 'POST' and form.validate():
 309         # Make sure there isn't already a Collection with such a slug
 310         # and userid.
 311         slug_used = check_collection_slug_used(request.db, collection.creator,
 312                 request.form['slug'], collection.id)
 313
 314         # Make sure there isn't already a Collection with this title
 315         existing_collection = request.db.Collection.find_one({
 316                 'creator': request.user.id,
 317                 'title':request.form['title']})
 318
 319         if existing_collection and existing_collection.id != collection.id:
 320             messages.add_message(
 321                 request, messages.ERROR,
 322                 _('You already have a collection called "%s"!') % \
 323                     request.form['title'])
 324         elif slug_used:
 325             form.slug.errors.append(
 326                 _(u'A collection with that slug already exists for this user.'))
 327         else:
 328             collection.title = unicode(request.form['title'])
 329             collection.description = unicode(request.form.get('description'))
 330             collection.slug = unicode(request.form['slug'])
 331
 332             collection.save()
 333
 334             return redirect(request, "mediagoblin.user_pages.user_collection",
 335                             user=collection.get_creator.username,
 336                             collection=collection.slug)
 337
 338     if request.user.is_admin \
 339             and collection.creator != request.user.id \
 340             and request.method != 'POST':
 341         messages.add_message(
 342             request, messages.WARNING,
 343             _("You are editing another user's collection. Proceed with caution."))
 344
 345     return render_to_response(
 346         request,
 347         'mediagoblin/edit/edit_collection.html',
 348         {'collection': collection,
 349          'form': form})