wire in Rails engine and Userinfo controller

Gemfile

@@ -1,3 +1,5 @@
+ENV['rails'] ||= ENV['orm'] == "mongoid4" ? '4.0.2' : '3.2.13'
+
 source 'https://rubygems.org'
 
 # Define Rails version

README.md

@@ -1,4 +1,4 @@
-# Doorkeeper::OpenIdConnect
+# Doorkeeper::OpenidConnect
 
 TODO: Write a gem description
 

app/controllers/doorkeeper/openid_connect/userinfo_controller.rb

@@ -0,0 +1,9 @@
+module Doorkeeper
+  module OpenidConnect
+    class UserinfoController < ::Doorkeeper::ApplicationController
+      def show
+        render text: 'hello world'
+      end
+    end
+  end
+end

doorkeeper-openid_connect.gemspec

@@ -1,17 +1,16 @@
 # coding: utf-8
-lib = File.expand_path('../lib', __FILE__)
-$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+$:.push File.expand_path("../lib", __FILE__)
 require 'doorkeeper/openid_connect/version'
 
 Gem::Specification.new do |spec|
   spec.name          = "doorkeeper-openid_connect"
-  spec.version       = Doorkeeper::OpenIdConnect::VERSION
-  spec.authors       = ["Sam Dengler"]
+  spec.version       = Doorkeeper::OpenidConnect::VERSION
+  spec.authors       = ["sdengler"]
   spec.email         = ["sam.dengler@playonsports.com"]
-  spec.summary       = "OpenID Connect Extension to Doorkeeper"
-  spec.description   = "OpenID Connect Extension to Doorkeeper"
   spec.homepage      = "https://github.com/doorkeeper-gem/doorkeeper/doorkeeper-openid_connect"
-  spec.license       = "MIT"
+  spec.summary       = %q{OpenID Connect extension to Doorkeeper.}
+  spec.description   = %q{OpenID Connect extension to Doorkeeper.}
+  spec.license       = %q{MIT}
 
   spec.files         = `git ls-files -z`.split("\x0")
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }

lib/doorkeeper/openid_connect.rb

@@ -1,7 +1,10 @@
-require "doorkeeper/openid_connect/version"
+require 'doorkeeper/openid_connect/version'
+require 'doorkeeper/openid_connect/engine'
 
-module Doorkeeper
-  module OpenIdConnect
+require 'doorkeeper/openid_connect/rails/routes'
+
+#module Doorkeeper
+  #module OpenidConnect
     # Your code goes here...
-  end
-end
+  #end
+#end

lib/doorkeeper/openid_connect/engine.rb

@@ -0,0 +1,10 @@
+module Doorkeeper
+  module OpenidConnect
+    class Engine < ::Rails::Engine
+      puts '************ Doorkeeper::OpenidConnect::Engine'
+      initializer 'doorkeeper.openid_connect.routes' do
+        Doorkeeper::OpenidConnect::Rails::Routes.install!
+      end
+    end
+  end
+end

lib/doorkeeper/openid_connect/rails/routes.rb

@@ -0,0 +1,50 @@
+require 'doorkeeper/openid_connect/rails/routes/mapping'
+require 'doorkeeper/openid_connect/rails/routes/mapper'
+
+module Doorkeeper
+  module OpenidConnect
+    module Rails
+      class Routes
+        module Helper
+          def use_doorkeeper_openid_connect(options = {}, &block)
+            Doorkeeper::OpenidConnect::Rails::Routes.new(self, &block).generate_routes!(options)
+          end
+        end
+
+        def self.install!
+          ActionDispatch::Routing::Mapper.send :include, Doorkeeper::OpenidConnect::Rails::Routes::Helper
+        end
+
+        attr_accessor :routes
+
+        def initialize(routes, &block)
+          @routes, @block = routes, block
+        end
+
+        def generate_routes!(options)
+          @mapping = Mapper.new.map(&@block)
+          routes.scope options[:scope] || 'oauth', as: 'oauth' do
+            map_route(:userinfo, :userinfo_routes)
+          end
+        end
+
+        private
+
+        def map_route(name, method)
+          unless @mapping.skipped?(name)
+            send method, @mapping[name]
+          end
+        end
+
+        def userinfo_routes(mapping)
+          routes.resource(
+            :userinfo,
+            path: 'userinfo',
+            only: [:show], as: mapping[:as],
+            controller: mapping[:controllers]
+          )
+        end
+      end
+    end
+  end
+end

lib/doorkeeper/openid_connect/rails/routes/mapper.rb

@@ -0,0 +1,30 @@
+module Doorkeeper
+  module OpenidConnect
+    module Rails
+      class Routes
+        class Mapper
+          def initialize(mapping = Mapping.new)
+            @mapping = mapping
+          end
+
+          def map(&block)
+            self.instance_eval(&block) if block
+            @mapping
+          end
+
+          def controllers(controller_names = {})
+            @mapping.controllers.merge!(controller_names)
+          end
+
+          def skip_controllers(*controller_names)
+            @mapping.skips = controller_names
+          end
+
+          def as(alias_names = {})
+            @mapping.as.merge!(alias_names)
+          end
+        end
+      end
+    end
+  end
+end

lib/doorkeeper/openid_connect/rails/routes/mapping.rb

@@ -0,0 +1,34 @@
+module Doorkeeper
+  module OpenidConnect
+    module Rails
+      class Routes
+        class Mapping
+          attr_accessor :controllers, :as, :skips
+
+          def initialize
+            @controllers = {
+              userinfo: 'doorkeeper/openid_connect/userinfo'
+            }
+
+            @as = {
+              userinfo: :userinfo
+            }
+
+            @skips = []
+          end
+
+          def [](routes)
+            {
+              controllers: @controllers[routes],
+              as: @as[routes]
+            }
+          end
+
+          def skipped?(controller)
+            @skips.include?(controller)
+          end
+        end
+      end
+    end
+  end
+end

lib/doorkeeper/openid_connect/version.rb

@@ -1,5 +1,5 @@
 module Doorkeeper
-  module OpenIdConnect
+  module OpenidConnect
     VERSION = "0.0.1"
   end
 end