sources: factor out Source::URL::Lofter.

app/logical/source/url.rb

@@ -20,6 +20,7 @@ module Source
     SUBCLASSES = [
       Source::URL::Twitter,
       Source::URL::HentaiFoundry,
+      Source::URL::Lofter,
       Source::URL::Newgrounds,
       Source::URL::Plurk,
       Source::URL::Skeb,

app/logical/source/url/lofter.rb

@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+# Image URLs
+#
+# # sample
+# * https://imglf3.lf127.net/img/S1d2QlVsWkJhSW1qcnpIS0ZSa3ZJSzFCWFlnUWgzb01DcUdpT1lreG5yQjJVMkhGS09HNGR3PT0.png?imageView&thumbnail=1680x0&quality=96&stripmeta=0
+#
+# # full size
+# * https://imglf3.lf127.net/img/S1d2QlVsWkJhSW1qcnpIS0ZSa3ZJSzFCWFlnUWgzb01DcUdpT1lreG5yQjJVMkhGS09HNGR3PT0.png
+# * http://imglf0.nosdn.127.net/img/cHl3bXNZdDRaaHBnNWJuN1Y4OXBqR01CeVBZSVNmU2FWZWtHc1h4ZTZiUGxlRzMwZnFDM1JnPT0.jpg (404)
+#
+# Page URLs
+#
+# * https://gengar563.lofter.com/post/1e82da8c_1c98dae1b
+# * https://yuli031458.lofter.com/post/3163d871_1cbdc5f6d (different theme/css selectors)
+# * https://ssucrose.lofter.com/post/1d30f3e4_1cc58e9f0 (another different theme)
+# * https://zuodaoxing.lofter.com/post/30b9c9c3_1cd15b686 (another theme)
+#
+# Profile URLs
+#
+# * http://gengar563.lofter.com
+#
+# Non-profile URLs
+#
+# * https://i.lofter.com
+# * https://www.lofter.com
+#
+class Source::URL::Lofter < Source::URL
+  RESERVED_SUBDOMAINS = %w[www.lofter.com i.lofter.com]
+
+  attr_reader :username, :work_id
+
+  def self.match?(url)
+    url.domain.in?(%w[lofter.com 127.net lf127.net])
+  end
+
+  def parse
+    case [host, *path_segments]
+
+    # https://imglf3.lf127.net/img/S1d2QlVsWkJhSW1qcnpIS0ZSa3ZJSzFCWFlnUWgzb01DcUdpT1lreG5yQjJVMkhGS09HNGR3PT0.png?imageView&thumbnail=1680x0&quality=96&stripmeta=0
+    # https://imglf3.lf127.net/img/S1d2QlVsWkJhSW1qcnpIS0ZSa3ZJSzFCWFlnUWgzb01DcUdpT1lreG5yQjJVMkhGS09HNGR3PT0.png
+    # http://imglf0.nosdn.127.net/img/cHl3bXNZdDRaaHBnNWJuN1Y4OXBqR01CeVBZSVNmU2FWZWtHc1h4ZTZiUGxlRzMwZnFDM1JnPT0.jpg (404)
+    in /127\.net$/, "img", filename
+      @filename = filename
+
+    # https://gengar563.lofter.com/post/1e82da8c_1c98dae1b
+    in /^([a-z0-9-]+)\.lofter\.com$/, "post", work_id unless host.in?(RESERVED_SUBDOMAINS)
+      @username = $1
+      @work_id = work_id
+
+    # http://gengar563.lofter.com
+    in /^([a-z0-9-]+)\.lofter\.com$/, *rest unless host.in?(RESERVED_SUBDOMAINS)
+      @username = $1
+
+    else
+    end
+  end
+
+  def image_url?
+    url.domain.in?(%w[lf127.net 127.net])
+  end
+
+  def full_image_url
+    "#{site}#{path}" if image_url?
+  end
+end