Special case: When crawling a link to an image, just put the filename as

the title.

app/jobs/regular/crawl_topic_link.rb

@@ -89,6 +89,16 @@ module Jobs
 
         crawled = false
 
+        # Special case: Images
+        # If the link is to an image, put the filename as the title
+        if topic_link.url =~ /\.(jpg|gif|png)$/
+          uri = URI(topic_link.url)
+          filename = File.basename(uri.path)
+          crawled = (TopicLink.where(id: topic_link.id).update_all(["title = ?, crawled_at = CURRENT_TIMESTAMP", filename]) == 1)
+        end
+
+        unless crawled
+          # Fetch the beginning of the document to find the title
           result = CrawlTopicLink.fetch_beginning(topic_link.url)
           doc = Nokogiri::HTML(result)
           if doc
@@ -102,6 +112,7 @@ module Jobs
               end
             end
           end
+        end
       rescue Exception
         # If there was a connection error, do nothing
       ensure