Module: ImageProcessing

Defined in:
lib/image_processing.rb,
lib/image_processing/vips.rb,
lib/image_processing/builder.rb,
lib/image_processing/version.rb,
lib/image_processing/pipeline.rb,
lib/image_processing/chainable.rb,
lib/image_processing/processor.rb,
lib/image_processing/mini_magick.rb

Defined Under Namespace

Modules: Chainable, MiniMagick, Vips Classes: Builder, Pipeline, Processor

Constant Summary collapse

Error = 
Class.new(StandardError)
UNSAFE_METHOD_OWNERS =

Method owners considered unsafe to dispatch to when a method name comes from user input, because they expose Ruby's metaprogramming and shell primitives (e.g. Kernel#send, Kernel#eval, BasicObject#instance_eval, Kernel#system). Any name whose implementation is inherited from one of these should never be treated as an image operation or a loader/saver option.

[BasicObject, Kernel, Object, Module].freeze
VERSION = 
"2.0.3"

Class Method Summary collapse

Class Method Details

.unsafe_method?(receiver, name) ⇒ Boolean

Whether calling name on receiver would dispatch to an unsafe Ruby core method rather than a genuine operation. Used as a single, shared guard at every place where a user-provided name is dispatched via public_send.

Returns:

  • (Boolean) 


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# File 'lib/image_processing.rb', line 21

def self.unsafe_method?(receiver, name)
  UNSAFE_METHOD_OWNERS.include?(receiver.method(name.to_s).owner)
rescue NameError
  # An unknown name is not a Ruby core method, so it is safe to forward to
  # the receiver (which will reject it if it is not a real operation).
  false
end