nijie: fix artist url normalization.

app/logical/sources/strategies/base.rb

@@ -116,7 +116,7 @@ module Sources
       # Sources::Strategies.find("http://dic.pixiv.net/a/THUNDERproject").normalizable_for_artist_finder?
       # => false
       def normalizable_for_artist_finder?
-        false
+        normalize_for_artist_finder.present?
       end
 
       def normalize_for_artist_finder

app/logical/sources/strategies/nijie.rb

@@ -1,6 +1,7 @@
 module Sources
   module Strategies
     class Nijie < Base
+      PROFILE = %r!\Ahttps?://nijie.info/members\.php\?id=(?<member_id>\d+)\z!i
       PICTURE = %r{pic\d+\.nijie.info/nijie_picture/}
       PAGE = %r{\Ahttps?://nijie\.info/view\.php.+id=\d+}
       DIFF = %r!\Ahttps?://pic\d+\.nijie\.info/__rs_l120x120/nijie_picture/diff/main/[0-9_]+\.\w+\z!i
@@ -46,6 +47,8 @@ module Sources
       end
 
       def profile_url
+        return url if url =~ PROFILE
+
         links = page.search("a.name")
 
         if links.any?

test/unit/artist_url_test.rb

@@ -151,5 +151,13 @@ class ArtistUrlTest < ActiveSupport::TestCase
       assert_equal("https://twitter.com/aoimanabu/status/892370963630743552", url.url)
       assert_equal("http://twitter.com/aoimanabu/", url.normalized_url)
     end
+
+    should "normalize nijie urls" do
+      url = FactoryBot.create(:artist_url, url: "https://pic03.nijie.info/nijie_picture/236014_20170620101426_0.png")
+      assert_equal("http://nijie.info/members.php?id=236014/", url.normalized_url)
+
+      url = FactoryBot.create(:artist_url, url: "https://nijie.info/members.php?id=236014")
+      assert_equal("http://nijie.info/members.php?id=236014/", url.normalized_url)
+    end
   end
 end