discourse/lib/stylesheet/compiler.rb
Bianca Nenciu b425fbc2a2
SECURITY: Generate more category CSS on client
This commit moves the generation of category background CSS from the
server side to the client side. This simplifies the server side code
because it does not need to check which categories are visible to the
current user.
2024-03-15 14:24:11 +08:00

74 lines
2.1 KiB
Ruby

# frozen_string_literal: true
require "stylesheet/importer"
module Stylesheet
class Compiler
ASSET_ROOT = "#{Rails.root}/app/assets/stylesheets" unless defined?(ASSET_ROOT)
def self.compile_asset(asset, options = {})
importer = Importer.new(options)
file = importer.prepended_scss
if Importer::THEME_TARGETS.include?(asset.to_s)
filename = "theme_#{options[:theme_id]}.scss"
file += options[:theme_variables].to_s
file += importer.theme_import(asset)
elsif plugin_assets = Importer.plugin_assets[asset.to_s]
filename = "#{asset}.scss"
options[:load_paths] = [] if options[:load_paths].nil?
plugin_assets.each do |src|
file += File.read src
options[:load_paths] << File.expand_path(File.dirname(src))
end
else
filename = "#{asset}.scss"
path = "#{ASSET_ROOT}/#{filename}"
file += File.read path
case asset.to_s
when "embed", "publish"
file += importer.font
when "wizard"
file += importer.wizard_fonts
when Stylesheet::Manager::COLOR_SCHEME_STYLESHEET
file += importer.import_color_definitions
file += importer.import_wcag_overrides
file += importer.font
end
end
compile(file, filename, options)
end
def self.compile(stylesheet, filename, options = {})
source_map_file = options[:source_map_file] || "#{filename.sub(".scss", "")}.css.map"
load_paths = [ASSET_ROOT]
load_paths += options[:load_paths] if options[:load_paths]
engine =
SassC::Engine.new(
stylesheet,
filename: filename,
style: :compressed,
source_map_file: source_map_file,
source_map_contents: true,
load_paths: load_paths,
)
result = engine.render
if options[:rtl]
require "rtlcss"
[Rtlcss.flip_css(result), nil]
else
source_map = engine.source_map
source_map.force_encoding("UTF-8")
[result, source_map]
end
end
end
end