making more headway. requests successfully authenticate

.gitignore

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+pkg/*
+*.gem
+.bundle

Gemfile

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+source "http://rubygems.org"
+
+# Specify your gem's dependencies in spice.gemspec
+gemspec

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    spice (0.0.1.alpha)
+      rest-client
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    diff-lcs (1.1.2)
+    mime-types (1.16)
+    rest-client (1.6.1)
+      mime-types (>= 1.16)
+    rspec (2.4.0)
+      rspec-core (~> 2.4.0)
+      rspec-expectations (~> 2.4.0)
+      rspec-mocks (~> 2.4.0)
+    rspec-core (2.4.0)
+    rspec-expectations (2.4.0)
+      diff-lcs (~> 1.1.2)
+    rspec-mocks (2.4.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rest-client
+  rspec (= 2.4.0)
+  spice!

Rakefile

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+require 'bundler'
+Bundler::GemHelper.install_tasks

lib/spice.rb

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+require 'json'
+
+require 'spice/authentication'
+require 'spice/connection'
+require 'spice/client'
+require 'spice/node'
+require 'spice/cookbook'
+
+module Spice
+  # Your code goes here...
+end

lib/spice/authentication.rb

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+require 'openssl'
+require 'mixlib/authentication/signedheaderauth'
+
+module Spice
+  class Authentication
+    attr_reader :key_file, :client_name, :key, :raw_key
+
+    def initialize(client_name=nil, key_file=nil)
+      @client_name, @key_file = client_name, key_file
+      load_signing_key if sign_requests?
+    end
+
+    def sign_requests?
+      !!key_file
+    end
+
+    def signature_headers(request_params={})
+      request_params             = request_params.dup
+      request_params[:timestamp] = Time.now.utc.iso8601
+      request_params[:user_id]   = client_name
+      host = request_params.delete(:host) || "localhost"
+
+      sign_obj = Mixlib::Authentication::SignedHeaderAuth.signing_object(request_params)
+      signed = sign_obj.sign(key).merge({:host => host})
+      signed.inject({}){|memo, kv| memo["#{kv[0].to_s.upcase}"] = kv[1];memo}
+    end
+
+    private
+
+    def load_signing_key
+      begin
+        @raw_key = IO.read(key_file).strip
+      rescue SystemCallError, IOError => e
+        raise IOError, "Unable to read #{key_file}"
+      end
+      assert_valid_key_format!(@raw_key)
+      @key = OpenSSL::PKey::RSA.new(@raw_key)
+    end
+
+    def assert_valid_key_format!(raw_key)
+      unless (raw_key =~ /\A-----BEGIN RSA PRIVATE KEY-----$/) &&
+         (raw_key =~ /^-----END RSA PRIVATE KEY-----\Z/)
+        msg = "The file #{key_file} does not contain a correctly formatted private key.\n"
+        msg << "The key file should begin with '-----BEGIN RSA PRIVATE KEY-----' and end with '-----END RSA PRIVATE KEY-----'"
+        raise ArgumentError, msg
+      end
+    end
+  end
+end

lib/spice/client.rb

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+module Spice
+  class Client
+    attr_reader :name
+    def initialize(name)
+      @name = name
+    end
+
+    def to_s
+      name
+    end
+  end
+end

lib/spice/connection.rb

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+require 'rest-client'
+
+module Spice
+  class Connection
+    attr_reader :auth_credentials
+    attr_accessor :url, :default_headers
+
+    def initialize(url, client_name, key_file, options={})
+      @url = url
+      @client_name = client_name
+      @key_file = key_file
+      @auth_credentials = Authentication.new(client_name, key_file)
+      @sign_on_redirect, @sign_request = true, true
+      @default_headers = options[:headers] || {}
+    end
+
+    def clients
+      # Client.all
+      method = :GET
+      path = "/clients"
+      response = RestClient::Request.execute(
+        :method => method,
+        :url => "#{@url}/#{path}",
+        :headers => build_headers(method, path)
+      )
+      JSON.parse(response).map {|c| Client.new(c[0])}
+    end
+
+    def cookbooks
+      method = :GET
+      path = "/cookbooks"
+      response = RestClient::Request.execute(
+        :method => method,
+        :url => "#{@url}/#{path}",
+        :headers => build_headers(method, path)
+      )
+      JSON.parse(response).inject([]) {|r, e| r << Cookbook.new(e[0])}
+    end
+
+    def data
+      DataBag.all
+    end
+
+    alias :data_bags :data
+
+    def environments
+      # Not yet implemented
+    end
+
+    def nodes
+      Node.all
+      # node_hash = self.get_rest("/nodes")
+      # @nodes ||= node_hash.map {|n| self.get_rest("/nodes/#{n[0]}") }
+    end
+
+    def roles
+      Role.all
+    end
+
+    def search
+    end
+
+    def sandboxes
+    end
+
+    def sign_requests?
+      auth_credentials.sign_requests? && @sign_request
+    end
+
+    def authentication_headers(method, path, json_body=nil)
+      request_params = {
+        :http_method => method, 
+        :path => path,
+        :body => json_body, 
+        :host => url
+      }
+      request_params[:body] ||= ""
+      auth_credentials.signature_headers(request_params)
+    end
+
+    def build_headers(method, path, headers={}, json_body=false, raw=false)
+      headers = @default_headers.merge(headers)
+      headers['Accept']       = "application/json" unless raw
+      headers["Content-Type"] = 'application/json' if json_body
+      headers['Content-Length'] = json_body.bytesize.to_s if json_body
+      headers.merge!(authentication_headers(method, path, json_body)) if sign_requests?
+      headers
+    end
+
+  end
+end

lib/spice/cookbook.rb

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+module Spice
+  class Cookbook
+  end
+end

lib/spice/data_bag.rb

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+module Spice
+  class DataBag
+  end
+end

lib/spice/node.rb

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+module Spice
+  class Node
+
+  end
+end

lib/spice/resource.rb

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+module Spice
+  class Resource
+
+   def connection
+     @connection ||= Connection.new()
+  end
+end

lib/spice/version.rb

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+module Spice
+  VERSION = "0.0.1.alpha"
+end

spice.gemspec

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+# -*- encoding: utf-8 -*-
+$:.push File.expand_path("../lib", __FILE__)
+require "spice/version"
+
+Gem::Specification.new do |s|
+  s.name        = "spice"
+  s.version     = Spice::VERSION
+  s.platform    = Gem::Platform::RUBY
+  s.authors     = ["Dan Ryan"]
+  s.email       = ["hi@iamdanryan.com"]
+  s.homepage    = "http://github.com/danryan/spice"
+  s.summary     = %q{Chef API wrapper}
+  s.description = %q{A zesty Chef API wrapper}
+
+  s.rubyforge_project = "spice"
+
+  s.add_dependency "rest-client"
+  s.add_dependency "mixlib-authentication"
+  s.add_development_dependency "rspec", "2.4.0"
+
+  s.files         = `git ls-files`.split("\n")
+  s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
+  s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
+  s.require_paths = ["lib"]
+end