X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/74378d009ec094bd52789bcb5f1a7be89c3509de..ab47432c3b01145efcad2c2de1c945e9a3a1822b:/apps/cover/forms.py?ds=inline diff --git a/apps/cover/forms.py b/apps/cover/forms.py index e4c949c8..7306b33a 100755 --- a/apps/cover/forms.py +++ b/apps/cover/forms.py @@ -3,13 +3,17 @@ # This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later. # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # -import json -import re -from urllib2 import urlopen +from StringIO import StringIO + from django import forms +from django.conf import settings from django.utils.translation import ugettext_lazy as _, ugettext from cover.models import Image from django.utils.text import mark_safe +from PIL import Image as PILImage + +from cover.utils import get_flickr_data, FlickrError, URLOpener + class ImageAddForm(forms.ModelForm): class Meta: @@ -28,82 +32,74 @@ class ImageAddForm(forms.ModelForm): pass else: raise forms.ValidationError(mark_safe( - ugettext('Image already in repository.' - ) % {'url': img.get_absolute_url()})) + ugettext('Image already in repository.') + % {'url': img.get_absolute_url()})) return cl + def clean_source_url(self): + source_url = self.cleaned_data['source_url'] or None + if source_url is not None: + same_source = Image.objects.filter(source_url=source_url) + if same_source: + raise forms.ValidationError(mark_safe( + ugettext('Image already in repository' + % same_source.first().get_absolute_url()))) + def clean(self): cleaned_data = super(ImageAddForm, self).clean() - if not cleaned_data.get('download_url', None) and not cleaned_data.get('file', None): - raise forms.ValidationError('No image specified') + download_url = cleaned_data.get('download_url', None) + uploaded_file = cleaned_data.get('file', None) + if not download_url and not uploaded_file: + raise forms.ValidationError(ugettext('No image specified')) + if download_url: + image_data = URLOpener().open(download_url).read() + width, height = PILImage.open(StringIO(image_data)).size + else: + width, height = PILImage.open(uploaded_file.file).size + min_width, min_height = settings.MIN_COVER_SIZE + if width < min_width or height < min_height: + raise forms.ValidationError(ugettext('Image too small: %sx%s, minimal dimensions %sx%s') % + (width, height, min_width, min_height)) return cleaned_data + class ImageEditForm(forms.ModelForm): """Form used for editing a Book.""" class Meta: model = Image exclude = ['download_url'] + def clean(self): + cleaned_data = super(ImageEditForm, self).clean() + uploaded_file = cleaned_data.get('file', None) + width, height = PILImage.open(uploaded_file.file).size + min_width, min_height = settings.MIN_COVER_SIZE + if width < min_width or height < min_height: + raise forms.ValidationError(ugettext('Image too small: %sx%s, minimal dimensions %sx%s') % + (width, height, min_width, min_height)) + class ReadonlyImageEditForm(ImageEditForm): """Form used for not editing an Image.""" def __init__(self, *args, **kwargs): - ret = super(ReadonlyImageEditForm, self).__init__(*args, **kwargs) + super(ReadonlyImageEditForm, self).__init__(*args, **kwargs) for field in self.fields.values(): field.widget.attrs.update({"readonly": True}) - return ret def save(self, *args, **kwargs): - raise AssertionError, "ReadonlyImageEditForm should not be saved." + raise AssertionError("ReadonlyImageEditForm should not be saved.") class FlickrForm(forms.Form): source_url = forms.URLField(label=_('Flickr URL')) def clean_source_url(self): - def normalize_html(html): - return html - return re.sub('[\t\n]', '', html) - url = self.cleaned_data['source_url'] - m = re.match(r'(https?://)?(www\.|secure\.)?flickr\.com/photos/(?P[^/]+)/(?P\d+)/?', url) - if not m: - raise forms.ValidationError("It doesn't look like Flickr URL.") - author_slug, img_id = m.group('author'), m.group('img') - base_url = "https://www.flickr.com/photos/%s/%s/" % (author_slug, img_id) - - try: - html = normalize_html(urlopen(url).read().decode('utf-8')) - except: - raise forms.ValidationError('Error reading page.') - match = re.search(r']* rel="license ', html) - try: - assert match - license_url = match.group(1) - self.cleaned_data['license_url'] = license_url - re_license = re.compile(r'https?://creativecommons.org/licenses/([^/]*)/([^/]*)/.*') - m = re_license.match(license_url) - assert m - self.cleaned_data['license_name'] = 'CC %s %s' % (m.group(1).upper(), m.group(2)) - except AssertionError: - raise forms.ValidationError('Error reading license name.') - - m = re.search(r']* class="owner-name [^>]*>([^<]*)<', html) - if m: - self.cleaned_data['author'] = "%s@Flickr" % m.group(1) - else: - raise forms.ValidationError('Error reading author name.') - - m = re.search(r']*>(.*?)', html, re.S) - if not m: - raise forms.ValidationError('Error reading image title.') - self.cleaned_data['title'] = m.group(1).strip() - - m = re.search(r'modelExport: (\{.*\})', html) try: - assert m - self.cleaned_data['download_url'] = 'https:' + json.loads(m.group(1))['photo-models'][0]['sizes']['o']['url'] - except (AssertionError, ValueError, IndexError, KeyError): - raise forms.ValidationError('Error reading image URL.') - return base_url + flickr_data = get_flickr_data(url) + except FlickrError as e: + raise forms.ValidationError(e) + for field_name in ('license_url', 'license_name', 'author', 'title', 'download_url'): + self.cleaned_data[field_name] = flickr_data[field_name] + return flickr_data['source_url']