class Rack::RewindableInput

Class which can make any IO object rewindable, including non-rewindable ones. It does this by buffering the data into a tempfile, which is rewindable.

Don’t forget to call close when you’re done. This frees up temporary resources that RewindableInput uses, though it does not close the original IO object.

Public Class Methods

new (io)

# File lib/rack/rewindable_input.rb, line 28
def initialize(io)
  @io = io
  @rewindable_io = nil
  @unlinked = false
end

Public Instance Methods

close ()

Closes this RewindableInput object without closing the originally wrapped IO object. Cleans up any temporary resources that this RewindableInput has created.

This method may be called multiple times. It does nothing on subsequent calls.

# File lib/rack/rewindable_input.rb, line 64
def close
  if @rewindable_io
    if @unlinked
      @rewindable_io.close
    else
      @rewindable_io.close!
    end
    @rewindable_io = nil
  end
end

each (&block)

# File lib/rack/rewindable_input.rb, line 44
def each(&block)
  make_rewindable unless @rewindable_io
  @rewindable_io.each(&block)
end

gets ()

# File lib/rack/rewindable_input.rb, line 34
def gets
  make_rewindable unless @rewindable_io
  @rewindable_io.gets
end

read (*args)

# File lib/rack/rewindable_input.rb, line 39
def read(*args)
  make_rewindable unless @rewindable_io
  @rewindable_io.read(*args)
end

rewind ()

# File lib/rack/rewindable_input.rb, line 49
def rewind
  make_rewindable unless @rewindable_io
  @rewindable_io.rewind
end

size ()

# File lib/rack/rewindable_input.rb, line 54
def size
  make_rewindable unless @rewindable_io
  @rewindable_io.size
end