Class: Parts::FilePart

Inherits:
Object
  • Object
show all
Includes:
Part
Defined in:
lib/parts.rb

Overview

Represents a part to be filled from file IO.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Part

new, #to_io

Constructor Details

#initialize(boundary, name, io) ⇒ FilePart

Returns a new instance of FilePart.



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# File 'lib/parts.rb', line 40

def initialize(boundary, name, io)
  file_length = io.respond_to?(:length) ?  io.length : File.size(io.local_path)
  @head = StringIO.new(build_head(boundary, name, io.original_filename, io.content_type, file_length))
  @foot = StringIO.new("\r\n")
  @length = @head.length + file_length + @foot.length
  @io = CompositeReadIO.new(@head, io, @foot)
end

Instance Attribute Details

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/parts.rb', line 39

def length
  @length
end

Instance Method Details

#build_head(boundary, name, filename, type, content_len) ⇒ Object 



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# File 'lib/parts.rb', line 48

def build_head(boundary, name, filename, type, content_len)
  part = ''
  part << "--#{boundary}\r\n"
  part << "Content-Disposition: form-data; name=\"#{name.to_s}\"; filename=\"#{filename}\"\r\n"
  part << "Content-Length: #{content_len}\r\n"
  part << "Content-Type: #{type}\r\n"
  part << "Content-Transfer-Encoding: binary\r\n"
  part << "\r\n"
end