Method: Net::HTTPHeader#set_range

Defined in:

lib/extensions/net-http/net/http.rb

#set_range(r, e = nil) ⇒ Object Also known as: range=

Set Range: header from Range (arg r) or beginning index and length from it (arg idx&len).

req.range = (0..1023)
req.set_range 0, 1023

# File 'lib/extensions/net-http/net/http.rb', line 1487

def set_range(r, e = nil)
  unless r
    @header.delete 'range'
    return r
  end
  r = (r...r+e) if e
  case r
  when Numeric
    n = r.to_i
    rangestr = (n > 0 ? "0-#{n-1}" : "-#{-n}")
  when Range
    first = r.first
    last = r.last
    last -= 1 if r.exclude_end?
    if last == -1
      rangestr = (first > 0 ? "#{first}-" : "-#{-first}")
    else
      raise HTTPHeaderSyntaxError, 'range.first is negative' if first < 0
      raise HTTPHeaderSyntaxError, 'range.last is negative' if last < 0
      raise HTTPHeaderSyntaxError, 'must be .first < .last' if first > last
      rangestr = "#{first}-#{last}"
    end
  else
    raise TypeError, 'Range/Integer is required'
  end
  @header['range'] = ["bytes=#{rangestr}"]
  r
end