Fix #4440: Whitespace not trimmed when searching by URL in Artists.

app/models/artist.rb

@@ -222,6 +222,8 @@ class Artist < ApplicationRecord
     end
 
     def url_matches(query)
+      query = query.strip
+
       if query =~ %r!\A/(.*)/\z!
         where(id: ArtistUrl.where_regex(:url, $1).select(:artist_id))
       elsif query.include?("*")
@@ -234,6 +236,8 @@ class Artist < ApplicationRecord
     end
 
     def any_name_or_url_matches(query)
+      query = query.strip
+
       if query =~ %r!\Ahttps?://!i
         url_matches(query)
       else

test/functional/artists_controller_test.rb

@@ -142,6 +142,12 @@ class ArtistsControllerTest < ActionDispatch::IntegrationTest
           get artists_path(search: { url_matches: url }, format: "json")
           assert_artist_found("masao")
         end
+
+        should "ignore whitespace when searching by URL" do
+          url = " http://www.pixiv.net/member_illust.php?mode=medium&illust_id=46170939 "
+          get artists_path(search: { url_matches: url }, format: "json")
+          assert_artist_found("masao")
+        end
       end
     end