Sha256: 5d99e253aa1aac9a5c66e3a28a30bdc13fa9750ba52044af7862b92efc94a4eb
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Size: 1.82 KB
Versions: 48
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Contents
require 'sqreen/exception'
module Sqreen
module Js
# start public interface
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
CallContext = Struct.new(:inst, :args, :rv)
class ExecutableJs
def run_js_cb(_cb_name, _budget, _arguments)
raise Sqreen::NotImplementedYet
end
end
# end public interface
class JsServiceAdapter
def preprocess(rule_name, code)
raise Sqreen::NotImplementedYet
end
def variant_name
'unspecified'
end
end
end
end
Version data entries
48 entries across 48 versions & 1 rubygems