Class: Sandbox::Safe
- Inherits:
-
Full
- Object
- Full
- Sandbox::Safe
- Defined in:
- lib/sandbox/safe.rb
Instance Method Summary collapse
Instance Method Details
#activate! ⇒ Object
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# File 'lib/sandbox/safe.rb', line 7 def activate! activate_fakefs keep_singleton_methods(:Kernel, KERNEL_S_METHODS) keep_singleton_methods(:Symbol, SYMBOL_S_METHODS) keep_singleton_methods(:String, STRING_S_METHODS) keep_singleton_methods(:IO, IO_S_METHODS) keep_methods(:Kernel, KERNEL_METHODS) keep_methods(:NilClass, NILCLASS_METHODS) keep_methods(:Symbol, SYMBOL_METHODS) keep_methods(:TrueClass, TRUECLASS_METHODS) keep_methods(:FalseClass, FALSECLASS_METHODS) keep_methods(:Enumerable, ENUMERABLE_METHODS) keep_methods(:String, STRING_METHODS) Kernel.class_eval do def `(*args) # `<- fix highlight by editor raise NoMethodError, "` is unavailable" end def system(*args) raise NoMethodError, "system is unavailable" end end end |
#activate_fakefs ⇒ Object
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# File 'lib/sandbox/safe.rb', line 34 def activate_fakefs require "fileutils" # unfortunately, the authors of FakeFS used `extend self` in FileUtils, instead of `module_function`. # I fixed it for them (FakeFS::FileUtils.methods - Module.methods - Kernel.methods).each do |module_method_name| FakeFS::FileUtils.send(:module_function, module_method_name) end import FakeFS ref FakeFS::Dir ref FakeFS::File ref FakeFS::FileTest import FakeFS::FileUtils #import FileUtils because it is a module # this is basically what FakeFS.activate! does, but we want to do it in the sandbox # so we have to live with this: eval <<-RUBY Object.class_eval do remove_const(:Dir) remove_const(:File) remove_const(:FileTest) remove_const(:FileUtils) const_set(:Dir, FakeFS::Dir) const_set(:File, FakeFS::File) const_set(:FileUtils, FakeFS::FileUtils) const_set(:FileTest, FakeFS::FileTest) end [Dir, File, FileUtils, FileTest].each do |fake_class| fake_class.class_eval do def self.class_eval raise NoMethodError, "class_eval is unavailable" end def self.instance_eval raise NoMethodError, "instance_eval is unavailable" end end end RUBY FakeFS::FileSystem.clear end |
#eval(code, options = {}) ⇒ Object
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# File 'lib/sandbox/safe.rb', line 79 def eval(code, ={}) if .is_a?(Binding) eval_with_binding(code, ) elsif seconds = [:timeout] sandbox_timeout(code, seconds) do super code end else super code end end |