[devdocsgjs/main: 1291/1867] parse_cf_email.rb: fix URI.unescape is obsolete

[Andy Holmes <andyholmes src gnome org>]

commit fbfa9de39c8795dc4065c3936766a69836cd6128
Author: Simon Legner <Simon Legner gmail com>
Date:   Tue Nov 24 23:02:25 2020 +0100

    parse_cf_email.rb: fix URI.unescape is obsolete

 lib/docs/filters/core/parse_cf_email.rb           |  2 +-
 test/lib/docs/filters/core/parse_cf_email_test.rb | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)
---
diff --git a/lib/docs/filters/core/parse_cf_email.rb b/lib/docs/filters/core/parse_cf_email.rb
index 628b1429..75bedc5b 100644
--- a/lib/docs/filters/core/parse_cf_email.rb
+++ b/lib/docs/filters/core/parse_cf_email.rb
@@ -12,7 +12,7 @@ module Docs
           result += "%" + "0#{("0x#{slice.join}".hex ^ mask).to_s(16)}"[-2..-1]
         end
 
-        node.replace(URI.decode(result))
+        node.replace(URI.decode_www_form_component(result))
       end
 
       doc
diff --git a/test/lib/docs/filters/core/parse_cf_email_test.rb 
b/test/lib/docs/filters/core/parse_cf_email_test.rb
new file mode 100644
index 00000000..ed0a9229
--- /dev/null
+++ b/test/lib/docs/filters/core/parse_cf_email_test.rb
@@ -0,0 +1,17 @@
+require 'test_helper'
+require 'docs'
+
+class ParseCfEmailFilterTest < MiniTest::Spec
+  include FilterTestHelper
+  self.filter_class = Docs::ParseCfEmailFilter
+
+  before do
+    context[:url] = 'http://example.com/dir/file'
+  end
+
+  it 'rewrites parses CloudFlare mail addresses' do
+    href = 'b3dddad0d6d2ddd7c0dadec3dfd6f3d6cbd2dec3dfd69dd0dcde'
+    @body = %(<a class="__cf_email__" data-cfemail="#{href}">Link</a>)
+    assert_equal 'niceandsimple example com', filter_output_string
+  end
+end