Module: OmniAuthConfigure::Rack

Defined in:
lib/omniauth_configure/rack.rb

Class Method Summary collapse

Class Method Details

.use_in(builder, configuration = nil, &block) ⇒ Object 



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# File 'lib/omniauth_configure/rack.rb', line 3

def self.use_in(builder, configuration=nil, &block)
  effective_configuration = configuration || OmniAuthConfigure.configuration
  unless effective_configuration
    fail "No configuration was provided. " <<
      "Please set one or the other before calling use_in."
  end

  app = effective_configuration.app
  klasses = effective_configuration.strategies

  klasses.each do |klass|
    if klass.is_a?(Class)
      middleware = klass
    else
      begin
        middleware = OmniAuth::Strategies.const_get("#{OmniAuth::Utils.camelize(klass.to_s)}")
      rescue NameError
        raise LoadError, "Could not find matching strategy for #{klass.inspect}. You may need to install an additional gem (such as omniauth-#{klass})."
      end
    end

    p = effective_configuration.parameters_for(app, klass)

    arg_keys = p.keys.sort

    middleware.args arg_keys

    args = p.values_at(*arg_keys)
    args << {} # Last argument to provider strategy is empty hash

    builder.use middleware, *args, &block
  end
end