[add] initial commit

config/application.rb

@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+require_relative 'boot'
+
+require 'rails'
+# Pick the frameworks you want:
+require 'active_model/railtie'
+require 'active_job/railtie'
+require 'active_record/railtie'
+require 'action_controller/railtie'
+require 'action_view/railtie'
+
+# Require the gems listed in Gemfile, including any gems
+# you've limited to :test, :development, or :production.
+Bundler.require(*Rails.groups)
+
+module RynDNS
+  class Application < Rails::Application
+    # Initialize configuration defaults for originally generated Rails version.
+    config.load_defaults 6.1
+    # Configuration for the application, engines, and railties goes here.
+    #
+    # These settings can be overridden in specific environments using the files
+    # in config/environments, which are processed later.
+    #
+    # config.time_zone = "Central Time (US & Canada)"
+    # config.eager_load_paths << Rails.root.join("extras")
+
+    # Only loads a smaller set of middleware suitable for API only apps.
+    # Middleware like session, flash, cookies can be added back manually.
+    # Skip views, helpers and assets when generating a new resource.
+    config.api_only = true
+
+    # FIXME: move this out of the application class
+    prefix_valid = lambda { |prefix|
+      error_msg = nil
+      error_msg = 'WARNING: prefix is not set' unless prefix
+      error_msg = 'WARNING: prefix needs to have eight characters' unless error_msg || prefix.length >= 8
+      error_msg = 'WARNING: prefix needs to be alphanumeric' unless error_msg || prefix.match(/\A[a-zA-Z0-9]*\z/)
+      puts error_msg if error_msg
+
+      error_msg.nil?
+    }
+
+    # global constants
+    API_VERSION = '1.0.0'
+    API_VERSION_NAMESPACE = "v#{API_VERSION.split('.')[0]}"
+    RELATIVE_URL_ROOT = ENV['RAILS_RELATIVE_URL_ROOT'].to_s || '/'
+    # TODO: add configuration model to save prefix and use ENV to overwrite it
+    prefix = ENV['RAILS_API_KEY_PREFIX']
+    if prefix_valid.call(prefix)
+      API_KEY_PREFIX = prefix[0, 8]
+    else
+      puts "WARNING: ENV['RAILS_API_KEY_PREFIX'] is invalid"
+      puts 'WARNING: Generating random prefix which will reset each server start'
+      API_KEY_PREFIX = SecureRandom.alphanumeric(8)
+      puts "Generated prefix: #{API_KEY_PREFIX}"
+      puts "WARNING: Please modify api_key -> #{API_KEY_PREFIX}.########.############"
+    end
+    API_KEY_HEADER = ENV['RAILS_API_KEY_HEADER'] || 'X-API-Key'
+  end
+end