Added ability to add links to specific domains and show the domain logo as an image substitute

boards/models/attachment/viewers.py

@@ -40,6 +40,10 b' URL_PROTOCOLS = {'
     'magnet': 'magnet',
 }
 
+URL_DOMAINS = {
+    'meduza.io': 'meduza',
+}
+
 CSS_CLASS_IMAGE = 'image'
 CSS_CLASS_THUMB = 'thumb'
 
@@ -160,7 +164,15 b' class UrlViewer(AbstractViewer):'
 
     def get_format_view(self):
         protocol = self.url.split('://')[0]
-        url_image_name = URL_PROTOCOLS.get(protocol, FILE_STUB_URL)
+        domain = self.url.split('/')[2]
+
+        if protocol in URL_PROTOCOLS:
+            url_image_name = URL_PROTOCOLS.get(protocol)
+        elif domain in URL_DOMAINS:
+            url_image_name = URL_DOMAINS.get(domain)
+        else:
+            url_image_name = FILE_STUB_URL
+
         image = static('images/' + url_image_name + '.png')
 
         w, h = get_static_dimensions('images/' + url_image_name + '.png')