class OmniAuth::FailureEndpoint

be raised.
a development ‘RACK_ENV`, in which case an exception will
is to redirect to `/auth/failure` except in the case of
any reason this endpoint will be invoked. The default behavior
’failure’ mechanism for OmniAuth. If a strategy fails for
This simple Rack endpoint that serves as the default

def self.call(env)

def self.call(env)
  new(env).call
end

def call

def call
  raise_out! if OmniAuth.config.failure_raise_out_environments.include?(ENV['RACK_ENV'].to_s)
  redirect_to_failure
end

def initialize(env)

def initialize(env)
  @env = env
end

def origin_query_param

def origin_query_param
  return '' unless env['omniauth.origin']
  "&origin=#{Rack::Utils.escape(env['omniauth.origin'])}"
end

def raise_out!

def raise_out!
  raise(env['omniauth.error'] || OmniAuth::Error.new(env['omniauth.error.type']))
end

def redirect_to_failure

def redirect_to_failure
  message_key = env['omniauth.error.type']
  new_path = "#{env['SCRIPT_NAME']}#{strategy_path_prefix}/failure?message=#{Rack::Utils.escape(message_key)}#{origin_query_param}#{strategy_name_query_param}"
  Rack::Response.new(['302 Moved'], 302, 'Location' => new_path).finish
end

def strategy_name_query_param

def strategy_name_query_param
  return '' unless env['omniauth.error.strategy']
  "&strategy=#{env['omniauth.error.strategy'].name}"
end

def strategy_path_prefix

def strategy_path_prefix
  if env['omniauth.error.strategy']
    env['omniauth.error.strategy'].path_prefix
  else
    OmniAuth.config.path_prefix
  end
end