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Contents
# typed: ignore
# Copyright (c) 2015 Sqreen. All Rights Reserved.
# Please refer to our terms for more information: https://www.sqreen.com/terms.html
require 'sqreen/log'
require 'sqreen/exception'
require 'singleton'
module Sqreen
module Js
class JsService
include ::Singleton
def initialize
detect_adapter
end
# @return [Sqreen::Js::ExecutableJs]
def prepare(rule_name, code)
raise 'Not online' unless online?
@adapter.preprocess(rule_name, code)
end
def online?
@online
end
def variant
@adapter.variant_name
end
private
def detect_adapter
@online = try_sq_mini_racer || try_rhino
Sqreen.log.info "JS engine online: #{variant}" if @online
end
def try_sq_mini_racer
gem = Gem.loaded_specs['sq_mini_racer']
unless gem
Sqreen.log.info "sq_mini_racer gem not detected"
return false
end
require 'sqreen/mini_racer'
require 'sqreen/js/mini_racer_adapter'
@adapter = MiniRacerAdapter.new(true)
rescue LoadError => e
Sqreen.log.warn "Failed loading sq_mini_racer: #{e}"
false
end
def try_rhino
gem = Gem.loaded_specs['therubyrhino']
unless gem
Sqreen.log.info "therubyrhino gem not detected"
return false
end
require 'rhino'
require 'sqreen/js/execjs_adapter'
@adapter = ExecjsAdapter.new
rescue LoadError => e
Sqreen.log.warn "Failed loading rhino: #{e}"
false
end
end
end
end
Version data entries
37 entries across 37 versions & 1 rubygems