Initial commit

.rspec

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+--color
+--require spec_helper
+--format NyanCatFormatter

.ruby-version

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+2.2.0
+

Gemfile

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+source "https://rubygems.org"
+
+group :test do
+  gem 'rspec', '>= 3.0'
+  gem 'nyan-cat-formatter'
+  gem 'webmock'
+end
+
+gemspec

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    goldfinger (0.0.0)
+      addressable (~> 2.4)
+      http (~> 1.0)
+      nokogiri (~> 1.6)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.4.0)
+    crack (0.4.3)
+      safe_yaml (~> 1.0.0)
+    diff-lcs (1.2.5)
+    domain_name (0.5.20160128)
+      unf (>= 0.0.5, < 1.0.0)
+    hashdiff (0.3.0)
+    http (1.0.2)
+      addressable (~> 2.3)
+      http-cookie (~> 1.0)
+      http-form_data (~> 1.0.1)
+      http_parser.rb (~> 0.6.0)
+    http-cookie (1.0.2)
+      domain_name (~> 0.5)
+    http-form_data (1.0.1)
+    http_parser.rb (0.6.0)
+    mini_portile2 (2.0.0)
+    nokogiri (1.6.7.2)
+      mini_portile2 (~> 2.0.0.rc2)
+    nyan-cat-formatter (0.11)
+      rspec (>= 2.99, >= 2.14.2, < 4)
+    rspec (3.4.0)
+      rspec-core (~> 3.4.0)
+      rspec-expectations (~> 3.4.0)
+      rspec-mocks (~> 3.4.0)
+    rspec-core (3.4.2)
+      rspec-support (~> 3.4.0)
+    rspec-expectations (3.4.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.4.0)
+    rspec-mocks (3.4.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.4.0)
+    rspec-support (3.4.1)
+    safe_yaml (1.0.4)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.7.2)
+    webmock (1.22.6)
+      addressable (>= 2.3.6)
+      crack (>= 0.3.2)
+      hashdiff
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 1.3)
+  goldfinger!
+  nyan-cat-formatter
+  rspec (>= 3.0)
+  webmock

goldfinger.gemspec

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+Gem::Specification.new do |s|
+  s.name                  = 'goldfinger'
+  s.version               = '0.0.0'
+  s.platform              = Gem::Platform::RUBY
+  s.required_ruby_version = '>= 2.0.0'
+  s.date                  = '2016-02-17'
+  s.summary               = "A Webfinger utility for Ruby"
+  s.description           = "A Webfinger utility for Ruby"
+  s.authors               = ["Eugen Rochko"]
+  s.email                 = 'eugen@zeonfederated.com'
+  s.files                 = `git ls-files lib LICENSE README.md`.split($RS)
+  s.homepage              = 'https://github.com/Gargron/goldfinger'
+  s.license               = 'MIT'
+
+  s.add_dependency('http', '~> 1.0')
+  s.add_dependency('addressable', '~> 2.4')
+  s.add_dependency('nokogiri', '~> 1.6')
+
+  s.add_development_dependency('bundler', '~> 1.3')
+end

lib/goldfinger.rb

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+require 'goldfinger/request'
+require 'goldfinger/result'
+require 'goldfinger/utils'
+require 'goldfinger/client'
+
+module Goldfinger
+  module Error
+    class NotFound < StandardError
+    end
+  end
+
+  def self.finger(uri)
+    Goldfinger::Client.new(uri).finger
+  end
+end

lib/goldfinger/client.rb

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+require 'addressable'
+require 'nokogiri'
+
+module Goldfinger
+  class Client
+    include Goldfinger::Utils
+
+    def initialize(uri)
+      @uri = uri
+    end
+
+    def finger
+      _, template   = perform_get(url)
+      headers, body = perform_get(url_from_template(template))
+      Goldfinger::Result.new(headers, body)
+    end
+
+    private
+
+    def url(ssl = true)
+      "http#{'s' if ssl}://#{domain}/.well-known/host-meta"
+    end
+
+    def url_from_template(template)
+      xml   = Nokogiri::XML(template)
+      links = xml.xpath('//xmlns:Link[@rel="lrdd"]', xmlns: 'http://docs.oasis-open.org/ns/xri/xrd-1.0')
+
+      raise Goldfinger::Error::NotFound if links.empty?
+
+      url = Addressable::Template.new(links.first.attribute('template').value)
+      url.expand({ uri: @uri }).to_s
+    end
+
+    def domain
+      @uri.split('@').last
+    end
+  end
+end

lib/goldfinger/request.rb

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+require 'http'
+require 'addressable'
+
+module Goldfinger
+  class Request
+    def initialize(request_method, path, options = {})
+      @request_method = request_method
+      @uri            = Addressable::URI.parse(path)
+      @options        = options
+    end
+
+    def perform
+      response = http_client.request(@request_method, @uri.to_s, @options)
+      [response.headers, response.body]
+    end
+
+    private
+
+    def http_client
+      HTTP
+    end
+  end
+end

lib/goldfinger/result.rb

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+module Goldfinger
+  class Result
+    def initialize(headers, body)
+      @mime_type = headers.get(HTTP::Headers::CONTENT_TYPE).first
+      @body      = body
+      @links     = {}
+
+      parse
+    end
+
+    def links
+      @links.to_a
+    end
+
+    def link(rel)
+      @links[rel]
+    end
+
+    private
+
+    def parse
+      case @mime_type
+      when 'application/jrd+json'
+        parse_json
+      when 'application/xrd+xml'
+        parse_xml
+      end
+    end
+
+    def parse_json
+      json = JSON.parse(@body)
+      json['links'].each { |link| @links[link['rel']] = link['href'] }
+    end
+
+    def parse_xml
+      xml = Nokogiri::XML(@body)
+      xml.xpath('//xmlns:Link', xmlns: 'http://docs.oasis-open.org/ns/xri/xrd-1.0').each { |link| @links[link.attribute('rel').value] = link.attribute('href').value }
+    end
+  end
+end

lib/goldfinger/utils.rb

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+module Goldfinger
+  module Utils
+    def perform_get(path, options = {})
+      perform_request(:get, path, options)
+    end
+
+    def perform_request(request_method, path, options = {})
+      Goldfinger::Request.new(request_method, path, options).perform
+    end
+  end
+end

spec/goldfinger/client_spec.rb

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+describe Goldfinger::Client do
+  describe '#finger' do
+    pending
+  end
+end

spec/goldfinger/request_spec.rb

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+describe Goldfinger::Request do
+  describe '#perform' do
+    pending
+  end
+end

spec/goldfinger/result_spec.rb

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+describe Goldfinger::Result do
+  describe '#links' do
+    pending
+  end
+
+  describe '#link' do
+    pending
+  end
+
+  describe '#parse_xml' do
+    pending
+  end
+
+  describe '#parse_json' do
+    pending
+  end
+end

spec/goldfinger/utils_spec.rb

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+describe Goldfinger::Utils do
+  pending
+end

spec/spec_helper.rb

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+require 'goldfinger'
+require 'webmock/rspec'
+
+WebMock.disable_net_connect!
+
+RSpec.configure do |config|
+
+  config.expect_with :rspec do |expectations|
+    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+  end
+
+  config.mock_with :rspec do |mocks|
+    mocks.verify_partial_doubles = true
+  end
+
+end