Module: HTTP::HPACK

Defined in:: lib/http/hpack/context.rb,
lib/http/hpack/huffman.rb,
lib/http/hpack/version.rb,
lib/http/hpack/compressor.rb,
lib/http/hpack/decompressor.rb,
lib/http/hpack/huffman/machine.rb

Overview

Implementation of header compression for HTTP 2.0 (HPACK) format adapted to efficiently represent HTTP headers in the context of HTTP 2.0.

tools.ietf.org/html/draft-ietf-httpbis-header-compression-10

Defined Under Namespace

Classes: CompressionError, Compressor, Context, Decompressor, Huffman

Constant Summary collapse

HEADER_REPRESENTATION = Header representation as defined by the spec.

{
	indexed: {prefix: 7, pattern: 0x80},
	incremental: {prefix: 6, pattern: 0x40},
	noindex: {prefix: 4, pattern: 0x00},
	neverindexed: {prefix: 4, pattern: 0x10},
	changetablesize: {prefix: 5, pattern: 0x20},
}

VERSION =

"0.1.0"

NAIVE = Predefined options set for Compressor mew.org/~kazu/material/2014-hpack.pdf

{index: :never, huffman: :never}

LINEAR =

{index: :all, huffman: :never}

STATIC =

{index: :static, huffman: :never}

SHORTER =

{index: :all, huffman: :never}

NAIVE_HUFFMAN =

{index: :never, huffman: :always}

LINEAR_HUFFMAN =

{index: :all, huffman: :always}

STATIC_HUFFMAN =

{index: :static, huffman: :always}

SHORTER_HUFFMAN =

{index: :all, huffman: :shorter}

MODES =

{
	naive: NAIVE,
	linear: LINEAR,
	static: STATIC,
	shorter: SHORTER,
	naive_huffman: NAIVE_HUFFMAN,
	linear_huffman: NAIVE_HUFFMAN,
	static_huffman: NAIVE_HUFFMAN,
	shorter_huffman: NAIVE_HUFFMAN,
}