Class: Aws::S3::Encryption::IODecrypter Private

Inherits:
Object
  • Object
show all
Defined in:
lib/aws-sdk-s3/encryption/io_decrypter.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

API:

  • private

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cipher, io) ⇒ IODecrypter

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of IODecrypter.

Parameters:

  • An IO-like object that responds to #write.

API:

  • private



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# File 'lib/aws-sdk-s3/encryption/io_decrypter.rb', line 11

def initialize(cipher, io)
  @cipher = cipher
  # Ensure that IO is reset between retries
  @io = io.tap { |io| io.truncate(0) if io.respond_to?(:truncate) }
  @cipher_buffer = String.new
end

Instance Attribute Details

#io ⇒ #write (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

API:

  • private



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# File 'lib/aws-sdk-s3/encryption/io_decrypter.rb', line 19

def io
  @io
end

Instance Method Details

#finalize ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

API:

  • private



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# File 'lib/aws-sdk-s3/encryption/io_decrypter.rb', line 30

def finalize
  @io.write(@cipher.final)
end

#write(chunk) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

API:

  • private



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# File 'lib/aws-sdk-s3/encryption/io_decrypter.rb', line 21

def write(chunk)
  # decrypt and write
  if @cipher.method(:update).arity == 1
    @io.write(@cipher.update(chunk))
  else
    @io.write(@cipher.update(chunk, @cipher_buffer))
  end
end