[WIP] refactor: use C libcbor instead of msgpack cbor

.travis.yml

@@ -2,16 +2,23 @@ dist: xenial
 sudo: false
 language: ruby
 cache: bundler
+
+os:
+  - linux
+  - osx
+
 rvm:
   - ruby-head
   - 2.6.0
   - 2.5.3
   - 2.4.5
   - 2.3.8
+
 matrix:
   fast_finish: true
   allow_failures:
     - rvm: ruby-head
 
 before_install:
   - gem install bundler -v "~> 2.0"
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then ./script/setup-osx; else sudo ./script/setup-linux; fi

Gemfile

@@ -6,3 +6,6 @@ git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in webauthn.gemspec
 gemspec
+
+# TODO: Remove this after cose is released
+gem "cose", github: "cedarcode/cose-ruby", branch: "libcbor"

lib/webauthn/authenticator_attestation_response.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "cbor"
+require "libcbor/all"
 require "uri"
 require "openssl"
 

lib/webauthn/fake_authenticator.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "cbor"
+require "libcbor/all"
 require "openssl"
 require "securerandom"
 

script/setup-linux

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -x
+
+if ! apt-cache show libcbor-dev >> /dev/null; then
+  add-apt-repository ppa:yubico/stable -y
+  apt-get update -q
+fi
+
+apt-get install libcbor-dev -y

script/setup-osx

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+set -x
+
+brew tap pjk/libcbor
+brew install libcbor

spec/spec_helper.rb

@@ -2,7 +2,7 @@
 
 require "bundler/setup"
 require "webauthn"
-require "cbor"
+require "libcbor/all"
 
 require "byebug"
 require "webauthn/fake_authenticator"

webauthn.gemspec

@@ -29,9 +29,9 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = ">= 2.3"
 
-  spec.add_dependency "cbor", "~> 0.5.9.2"
   spec.add_dependency "cose", "~> 0.1.0"
   spec.add_dependency "jwt", [">= 1.5", "< 3.0"]
+  spec.add_dependency "libcbor", "~> 0.1.0"
   spec.add_dependency "openssl", "~> 2.0"
 
   spec.add_development_dependency "bundler", ">= 1.17", "< 3.0"