Merge commit '425d77f8124a50fc033e8fb3bdf7b89a6a25f4fa' into glitch-soc/merge-upstream

Conflicts:
- `.rubocop_todo.yml`:
  Upstream regenerated this file, glitch-soc had a specific ignore.
- `README.md`:
  Upstream updated its README, but glitch-soc has a completely different one.
  Kept glitch-soc's README

app/validators/language_validator.rb

@@ -4,18 +4,20 @@ class LanguageValidator < ActiveModel::EachValidator
   include LanguagesHelper
 
   def validate_each(record, attribute, value)
-    record.errors.add(attribute, :invalid) unless valid?(value)
+    @value = value
+
+    record.errors.add(attribute, :invalid) unless valid_locale_value?
   end
 
   private
 
-  def valid?(str)
-    if str.nil?
+  def valid_locale_value?
+    if @value.nil?
       true
-    elsif str.is_a?(Array)
-      str.all? { |x| valid_locale?(x) }
+    elsif @value.is_a?(Array)
+      @value.all? { |x| valid_locale?(x) }
     else
-      valid_locale?(str)
+      valid_locale?(@value)
     end
   end
 end

app/validators/status_length_validator.rb

@@ -45,7 +45,7 @@ class StatusLengthValidator < ActiveModel::Validator
 
   def rewrite_entities(str, entities)
     entities.sort_by! { |entity| entity[:indices].first }
-    result = ''.dup
+    result = +''
 
     last_index = entities.reduce(0) do |index, entity|
       result << str[index...entity[:indices].first]

app/validators/url_validator.rb

@@ -1,16 +1,31 @@
 # frozen_string_literal: true
 
 class URLValidator < ActiveModel::EachValidator
+  VALID_SCHEMES = %w(http https).freeze
+
   def validate_each(record, attribute, value)
-    record.errors.add(attribute, :invalid) unless compliant?(value)
+    @value = value
+
+    record.errors.add(attribute, :invalid) unless compliant_url?
   end
 
   private
 
-  def compliant?(url)
-    parsed_url = Addressable::URI.parse(url)
-    parsed_url && %w(http https).include?(parsed_url.scheme) && parsed_url.host
+  def compliant_url?
+    parsed_url.present? && valid_url_scheme? && valid_url_host?
+  end
+
+  def parsed_url
+    Addressable::URI.parse(@value)
   rescue Addressable::URI::InvalidURIError
     false
   end
+
+  def valid_url_scheme?
+    VALID_SCHEMES.include?(parsed_url.scheme)
+  end
+
+  def valid_url_host?
+    parsed_url.host.present?
+  end
 end