diff options
Diffstat (limited to 'components/embedding.rb')
| -rw-r--r-- | components/embedding.rb | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/components/embedding.rb b/components/embedding.rb index c464244..46d0fba 100644 --- a/components/embedding.rb +++ b/components/embedding.rb @@ -9,10 +9,18 @@ require 'tempfile' module NanoBot module Components class Embedding + def self.ensure_safety!(safety) + raise 'missing safety definitions' unless safety.key?(:sandboxed) + end + def self.lua(source:, parameters:, values:, safety:) + ensure_safety!(safety) + + allowed = '' + allowed = ', {math=math,string=string,table=table}' if safety[:sandboxed] + state = SweetMoon::State.new - # code = "_, embedded = pcall(load([[\nreturn function(#{parameters.join(', ')})\nreturn #{source}\nend\n]], nil, 't', {math=math,string=string,table=table}))" - code = "_, embedded = pcall(load([[\nreturn function(#{parameters.join(', ')})\n#{source}\nend\n]], nil, 't'))" + code = "_, embedded = pcall(load([[\nreturn function(#{parameters.join(', ')})\n#{source}\nend\n]], nil, 't'#{allowed}))" state.eval(code) embedded = state.get(:embedded) @@ -20,19 +28,25 @@ module NanoBot end def self.fennel(source:, parameters:, values:, safety:) + ensure_safety!(safety) + path = "#{File.expand_path('../static/fennel', __dir__)}/?.lua" state = SweetMoon::State.new(package_path: path).fennel # TODO: global is deprecated... state.fennel.eval( "(global embedded (fn [#{parameters.join(' ')}] #{source}))", 1, - safety ? { allowedGlobals: %w[math string table] } : nil + safety[:sandboxed] ? { allowedGlobals: %w[math string table] } : nil ) embedded = state.get(:embedded) embedded.call(values) end def self.clojure(source:, parameters:, values:, safety:) + ensure_safety!(safety) + + raise 'TODO: sandboxed Clojure through Babashka not implemented' if safety[:sandboxed] + raise 'invalid Clojure parameter name' if parameters.include?('injected-parameters') key_value = {} |