Update sanitizer in ActionView::Helpers::SanitizeHelper

- The sanitizer has been changed to safe_list_sanitizer.

actiontext/app/helpers/action_text/content_helper.rb

+# frozen_string_literal: true
+
+require "rails-html-sanitizer"
+
+module ActionText
+  module ContentHelper
+    mattr_accessor(:sanitizer) { Rails::Html::Sanitizer.safe_list_sanitizer.new }
+    mattr_accessor(:allowed_tags) { sanitizer.class.allowed_tags + [ ActionText::Attachment::TAG_NAME, "figure", "figcaption" ] }
+    mattr_accessor(:allowed_attributes) { sanitizer.class.allowed_attributes + ActionText::Attachment::ATTRIBUTES }
+    mattr_accessor(:scrubber)
+
+    def render_action_text_content(content)
+      sanitize_action_text_content(render_action_text_attachments(content))
+    end
+
+    def sanitize_action_text_content(content)
+      sanitizer.sanitize(content.to_html, tags: allowed_tags, attributes: allowed_attributes, scrubber: scrubber).html_safe
+    end
+
+    def render_action_text_attachments(content)
+      content.render_attachments do |attachment|
+        unless attachment.in?(content.gallery_attachments)
+          attachment.node.tap do |node|
+            node.inner_html = render(attachment, in_gallery: false).chomp
+          end
+        end
+      end.render_attachment_galleries do |attachment_gallery|
+        render(layout: attachment_gallery, object: attachment_gallery) do
+          attachment_gallery.attachments.map do |attachment|
+            attachment.node.inner_html = render(attachment, in_gallery: true).chomp
+            attachment.to_html
+          end.join("").html_safe
+        end.chomp
+      end
+    end
+  end
+end

actionview/CHANGELOG.md

+*   ActionView::Helpers::SanitizeHelper: support rails-html-sanitizer 1.1.0.
+
+    *Juanito Fatas*
+
 *   Allow programmatic click events to trigger Rails UJS click handlers.
     Programmatic click events (eg. ones generated by `Rails.fire(link, "click")`) don't specify a button. These events were being incorrectly stopped by code meant to ignore scroll wheel and right clicks introduced in #34573.
 

actionview/lib/action_view/helpers/sanitize_helper.rb

@@ -17,7 +17,7 @@ module SanitizeHelper
       # ASCII, and hex character references to work around these protocol filters.
       # All special characters will be escaped.
       #
-      # The default sanitizer is Rails::Html::WhiteListSanitizer. See {Rails HTML
+      # The default sanitizer is Rails::Html::SafeListSanitizer. See {Rails HTML
       # Sanitizers}[https://github.com/rails/rails-html-sanitizer] for more information.
       #
       # Custom sanitization rules can also be provided.
@@ -80,12 +80,12 @@ module SanitizeHelper
       #   config.action_view.sanitized_allowed_tags = ['strong', 'em', 'a']
       #   config.action_view.sanitized_allowed_attributes = ['href', 'title']
       def sanitize(html, options = {})
-        self.class.white_list_sanitizer.sanitize(html, options).try(:html_safe)
+        self.class.safe_list_sanitizer.sanitize(html, options).try(:html_safe)
       end
 
       # Sanitizes a block of CSS code. Used by +sanitize+ when it comes across a style attribute.
       def sanitize_css(style)
-        self.class.white_list_sanitizer.sanitize_css(style)
+        self.class.safe_list_sanitizer.sanitize_css(style)
       end
 
       # Strips all HTML tags from +html+, including comments and special characters.
@@ -123,7 +123,7 @@ def strip_links(html)
       end
 
       module ClassMethods #:nodoc:
-        attr_writer :full_sanitizer, :link_sanitizer, :white_list_sanitizer
+        attr_writer :full_sanitizer, :link_sanitizer, :safe_list_sanitizer
 
         # Vendors the full, link and white list sanitizers.
         # Provided strictly for compatibility and can be removed in Rails 5.1.
@@ -132,11 +132,11 @@ def sanitizer_vendor
         end
 
         def sanitized_allowed_tags
-          sanitizer_vendor.white_list_sanitizer.allowed_tags
+          sanitizer_vendor.safe_list_sanitizer.allowed_tags
         end
 
         def sanitized_allowed_attributes
-          sanitizer_vendor.white_list_sanitizer.allowed_attributes
+          sanitizer_vendor.safe_list_sanitizer.allowed_attributes
         end
 
         # Gets the Rails::Html::FullSanitizer instance used by +strip_tags+. Replace with
@@ -145,7 +145,6 @@ def sanitized_allowed_attributes
         #   class Application < Rails::Application
         #     config.action_view.full_sanitizer = MySpecialSanitizer.new
         #   end
-        #
         def full_sanitizer
           @full_sanitizer ||= sanitizer_vendor.full_sanitizer.new
         end
@@ -156,20 +155,18 @@ def full_sanitizer
         #   class Application < Rails::Application
         #     config.action_view.link_sanitizer = MySpecialSanitizer.new
         #   end
-        #
         def link_sanitizer
           @link_sanitizer ||= sanitizer_vendor.link_sanitizer.new
         end
 
-        # Gets the Rails::Html::WhiteListSanitizer instance used by sanitize and +sanitize_css+.
+        # Gets the Rails::Html::SafeListSanitizer instance used by sanitize and +sanitize_css+.
         # Replace with any object that responds to +sanitize+.
         #
         #   class Application < Rails::Application
-        #     config.action_view.white_list_sanitizer = MySpecialSanitizer.new
+        #     config.action_view.safe_list_sanitizer = MySpecialSanitizer.new
         #   end
-        #
-        def white_list_sanitizer
-          @white_list_sanitizer ||= sanitizer_vendor.white_list_sanitizer.new
+        def safe_list_sanitizer
+          @safe_list_sanitizer ||= sanitizer_vendor.safe_list_sanitizer.new
         end
       end
     end