Class: HttpDecoders::GZip

Inherits:
Base
  • Object
show all
Defined in:
lib/http_decoders.rb

Constant Summary collapse

MAGIC_STRING = 
"\x1F\x8B".force_encoding(Encoding::ASCII_8BIT).freeze

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#<<, #finalize!

Constructor Details

#initialize ⇒ GZip 



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# File 'lib/http_decoders.rb', line 225

def initialize
  super
  @buffer = nil
end

Class Method Details

.encoding_names ⇒ Object 



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# File 'lib/http_decoders.rb', line 221

def self.encoding_names
  %w(gzip compressed)
end

Instance Method Details

#decompress(compressed) ⇒ Object 



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# File 'lib/http_decoders.rb', line 230

def decompress(compressed)
  compressed
    .force_encoding(Encoding::ASCII_8BIT)
    .each_line(MAGIC_STRING)
    .map { |chunk| decompress_chunk(chunk) }
    .join('')
end

#finalize ⇒ Object 



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# File 'lib/http_decoders.rb', line 238

def finalize
  if @zstream
    if !@zstream.finished?
      r = @zstream.finish
    end
    @zstream.close
    r
  else
    nil
  end
rescue Zlib::Error
  raise DecoderError
end