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1 # combo - content management system
2 # Copyright (C) 2018  Entr'ouvert
3 #
4 # This program is free software: you can redistribute it and/or modify it
5 # under the terms of the GNU Affero General Public License as published
6 # by 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 django.core.urlresolvers import reverse
18 from django.forms.utils import flatatt
19 from django.template.loader import render_to_string
20 from django.utils.encoding import force_text
21 from django.utils.html import conditional_escape
22 from django.utils.safestring import mark_safe
23 from django.utils.translation import get_language
24
25 import ckeditor.views
26 import ckeditor.widgets
27 from ckeditor.image import pillow_backend
28
29
30 def ckeditor_render(self, name, value, attrs=None):
31     if value is None:
32         value = ''
33     final_attrs = {'name': name}
34     if getattr(self, 'attrs', None):
35         final_attrs.update(self.attrs)
36     if attrs:
37         final_attrs.update(attrs)
38     if 'filebrowserUploadUrl' not in self.config:
39         self.config.setdefault('filebrowserUploadUrl', reverse('ckeditor_upload'))
40     if 'filebrowserBrowseUrl' not in self.config:
41         self.config.setdefault('filebrowserBrowseUrl', reverse('ckeditor_browse'))
42     if not self.config.get('language'):
43         self.config['language'] = get_language()
44
45     # Force to text to evaluate possible lazy objects
46     external_plugin_resources = [
47         [force_text(a), force_text(b), force_text(c)] for a, b, c in self.external_plugin_resources
48     ]
49
50     return mark_safe(
51         render_to_string(
52             'ckeditor/widget.html',
53             {
54                 'final_attrs': flatatt(final_attrs),
55                 'value': conditional_escape(force_text(value)),
56                 'id': final_attrs['id'],
57                 'config': ckeditor.widgets.json_encode(self.config),
58                 'external_plugin_resources': ckeditor.widgets.json_encode(external_plugin_resources),
59             },
60         )
61     )
62
63
64 ckeditor.widgets.CKEditorWidget.render = ckeditor_render
65
66 orig_should_create_thumbnail = pillow_backend.should_create_thumbnail
67
68
69 def should_create_thumbnail(file_path):
70     if file_path.endswith('.gif'):
71         # disable thumbnails for gif to workaround
72         # https://github.com/python-pillow/Pillow/issues/2803
73         return False
74     return orig_should_create_thumbnail(file_path)
75
76
77 def get_backend():
78     backend = pillow_backend
79     backend.should_create_thumbnail = should_create_thumbnail
80     return backend
81
82
83 ckeditor.views.image_processing.get_backend = get_backend