Module: SendFileWithRange::ControllerExtension

Defined in:
lib/send_file_with_range/controller_extension.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/send_file_with_range/controller_extension.rb', line 4

def self.included(base)
  base.alias_method_chain :send_file, :range_option
end

Instance Method Details

#send_file_with_range(path, options = {}) ⇒ Object 



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# File 'lib/send_file_with_range/controller_extension.rb', line 16

def send_file_with_range(path, options = {})
  if File.exist?(path)
    file_size = File.size(path)
    begin_point = 0
    end_point = file_size - 1
    status = 200
    if request.headers['range']
      status = 206
      if request.headers['range'] =~ /bytes\=(\d+)\-(\d*)/
        begin_point = $1.to_i
        end_point = $2.to_i if $2.present?
      end
    end
    content_length = end_point - begin_point + 1
    response.header['Content-Range'] = "bytes #{begin_point}-#{end_point}/#{file_size}"
    response.header['Content-Length'] = content_length.to_s
    response.header['Accept-Ranges'] = 'bytes'
    send_data IO.binread(path, content_length, begin_point), options.merge(:status => status)
  else
    raise ActionController::MissingFile, "Cannot read file #{path}"
  end
end

#send_file_with_range_option(path, options = {}) ⇒ Object 



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# File 'lib/send_file_with_range/controller_extension.rb', line 8

def send_file_with_range_option(path, options = {})
  if options[:range]
    send_file_with_range(path, options)
  else
    send_file_without_range_option(path, options)
  end
end