Use DefaultEbookCover in previews.

[redakcja.git] / apps / cover / forms.py

diff --git a/apps/cover/forms.py b/apps/cover/forms.py
index d726f1f..4c71886 100755 (executable)
--- a/apps/cover/forms.py
+++ b/apps/cover/forms.py
@@ -13,6 +13,23 @@ class ImageAddForm(forms.ModelForm):
     class Meta:
         model = Image
 
+    def __init__(self, *args, **kwargs):
+        super(ImageAddForm, self).__init__(*args, **kwargs)
+        self.fields['file'].required = self.fields['download_url'].required = self.fields['source_url'].required = False
+
+    def clean_download_url(self):
+        return self.cleaned_data['download_url'] or None
+
+    def clean_source_url(self):
+        return self.cleaned_data['source_url'] or None
+
+    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')
+        return cleaned_data
+
+
 class ImageEditForm(forms.ModelForm):
     """Form used for editing a Book."""
     class Meta:
@@ -37,6 +54,9 @@ class FlickrForm(forms.Form):
     source_url = forms.URLField(label=_('Flickr URL'))
 
     def clean_source_url(self):
+        def normalize_html(html):
+            return re.sub('[\t\n]', '', html)
+    
         url = self.cleaned_data['source_url']
         m = re.match(r'(https?://)?(www\.|secure\.)?flickr\.com/photos/(?P<author>[^/]+)/(?P<img>\d+)/?', url)
         if not m:
@@ -45,7 +65,7 @@ class FlickrForm(forms.Form):
         base_url = "https://www.flickr.com/photos/%s/%s/" % (author_slug, img_id)
 
         try:
-            html = urlopen(url).read().decode('utf-8')
+            html = normalize_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)
@@ -60,7 +80,7 @@ class FlickrForm(forms.Form):
         except AssertionError:
             raise forms.ValidationError('Error reading license name.')
 
-        m = re.search(r'<strong class="username">By <a href="[^"]*">([^<]*)</a></strong>', html)
+        m = re.search(r'"ownername":"([^"]*)', html)
         if m:
             self.cleaned_data['author'] = "%s@Flickr" % m.group(1)
         else:
@@ -72,7 +92,7 @@ class FlickrForm(forms.Form):
         self.cleaned_data['title'] = m.group(1)
 
         url_size = base_url + "sizes/o/"
-        html = urlopen(url_size).read().decode('utf-8')
+        html = normalize_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)