+# -*- coding: utf-8 -*-
+#
+# This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+import re
+from urllib2 import urlopen
+from django import forms
+from cover.models import Image
+
+class ImageAddForm(forms.ModelForm):
+ class Meta:
+ model = Image
+
+class ImageEditForm(forms.ModelForm):
+ """Form used for editing a Book."""
+ class Meta:
+ model = Image
+ exclude = ['download_url']
+
+
+class ReadonlyImageEditForm(ImageEditForm):
+ """Form used for not editing a Book."""
+
+ def __init__(self, *args, **kwargs):
+ ret = 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."
+
+
+class FlickrForm(forms.Form):
+ source_url = forms.URLField()
+
+ def clean_source_url(self):
+ url = self.cleaned_data['source_url']
+ m = re.match(r'(https?://)?(www.)?flickr.com/photos/(?P<author>[^/]+)/(?P<img>\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 = urlopen(url).read().decode('utf-8')
+ except:
+ raise forms.ValidationError('Error reading page.')
+ match = re.search(r'<a href="([^"]*)" rel="license cc:license">Some rights reserved</a>', html)
+ try:
+ assert match
+ license_url = match.group(1)
+ self.cleaned_data['license_url'] = license_url
+ re_license = re.compile(r'http://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'<strong class="username">By <a href="[^"]*">([^<]*)</a></strong>', html)
+ if m:
+ self.cleaned_data['author'] = "%s@Flickr" % m.group(1)
+ else:
+ raise forms.ValidationError('Error reading author name.')
+
+ m = re.search(r'<h1[^>]*>(.*?)</h1>', html)
+ if not m:
+ raise forms.ValidationError('Error reading image title.')
+ self.cleaned_data['title'] = m.group(1)
+
+ url_size = base_url + "sizes/o/"
+ html = urlopen(url_size).read().decode('utf-8')
+ m = re.search(r'<div id="allsizes-photo">\s*<img src="([^"]*)"', html)
+ if m:
+ self.cleaned_data['download_url'] = m.group(1)
+ else:
+ raise forms.ValidationError('Error reading image URL.')
+ return base_url
fnp / redakcja.git / commitdiff