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Versions: 6
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Contents
# frozen_string_literal: true
# Released under the MIT License.
# Copyright, 2019-2024, by Samuel Williams.
require_relative "frame"
module Protocol
module HTTP2
# Certain frames can have padding:
# https://http2.github.io/http2-spec/#padding
#
# +---------------+
# |Pad Length? (8)|
# +---------------+-----------------------------------------------+
# | Data (*) ...
# +---------------------------------------------------------------+
# | Padding (*) ...
# +---------------------------------------------------------------+
#
module Padded
def padded?
flag_set?(PADDED)
end
def pack(data, padding_size: nil, maximum_size: nil)
if padding_size
set_flags(PADDED)
buffer = String.new.b
buffer << padding_size
buffer << data
if padding_size
buffer << ("\0" * padding_size)
end
super buffer
else
clear_flags(PADDED)
super data
end
end
def unpack
if padded?
padding_size = @payload[0].ord
# 1 byte for the padding octet, and padding_size bytes for the padding itself:
data_size = @payload.bytesize - (1 + padding_size)
if data_size < 0
raise ProtocolError, "Invalid padding length: #{padding_size}"
end
return @payload.byteslice(1, data_size)
else
return @payload
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems